{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA large foldable four-ridge-eight-row peanut planter comprises a mounting frame (1) and a planter main frame (26), and also comprises a parallelogram-shaped hydraulic folding beam frame (2). The mounting frame (1) is fixedly disposed at a front end of the parallelogram-shaped hydraulic folding beam frame (2), and the planter main frame (26) is disposed behind the parallelogram-shaped hydraulic folding beam frame (2). The parallelogram-shaped hydraulic folding beam frame (2) comprises a support main beam frame (46), a middle connecting beam frame (44), an outward extending folding beam frame (42) and a parallel cross rod (48). The support main beam frame (46), the middle connecting beam frame (44) and the parallel cross rod (48) constitute a parallelogram-shaped structure. The planter main frame (26) comprises a middle planter axle (36) and side planter axles (33). The middle planter axle (36) is located between two side planter axles (33). The two side planter axles (33) are connected to the outward extending folding beam frame (42) through a wide ground-contour following mechanism (29) respectively. The planter has a compact structure, complete functions, high operation efficiency and good ground-contour following capability, and integrates multiple processes.\nA: Disclosed are a weeding machine and weeding method for seedlings in a paddy field. The weeding machine comprises a paddy field power chassis (1), a lifting hydraulic cylinder (2), a parallelogram suspension frame (3), a weeding machine frame (5), a transmission assembly and a weeding unit, wherein the paddy field power chassis vertically adjusts the working depth of the weeding machine by means of the parallelogram suspension frame and the lifting hydraulic cylinder; the transmission assembly transmits power to the weeding unit; the weeding unit is used for pulling inter-row weeds and feeding same into a weed chopping channel; a spiral weed chopping knife is used for chopping the weeds and conveying same to a feeding channel; and a two-way variable-pitch conveyer conveys the chopped weeds to a discharge port of the feeding channel in a pressurized manner and then discharges same for burying inter-plant weeds. According to the weeding machine, the inter-plant weeds are removed in a weeding-chopping-burying working process, which can reserve seedlings, and achieve a thorough weeding operation, a high working efficiency and a good weeding effect.\nB: Disclosed is a planter for planting crops, the planter comprising a seed box (1), a rotary cultivator A (2) and a rotary cultivator B (3), wherein the seed box (1), the rotary cultivator A (2) and the rotary cultivator B (3) are all mounted on a support beam (4); the rotary cultivator A (2) is located between the seed box (1) and the rotary cultivator B (3), and the rotary cultivator B (3) is located at the right of the rotary cultivator A (2); a lower end of the seed box (1) is connected to a seeding device (13); a guide wheel (14) is arranged on a lower end on the left side of the support beam (4), and a roller (10) is arranged on the lower end on the right side of the support beam (4); and rotary blades A (12) and rotary blades B (11) are respectively mounted on lower ends of the rotary cultivator A (2) and the rotary cultivator B (3). By providing two rotary cultivators, the land can be fully flattened and crushed such that all the soil blocks are divided into smaller soil blocks, so that the crops are planted and then can grow more smoothly, a conveying device (18) and a seeding plate (20) arranged in the seeding device (13) can allow seeds to be seeded evenly, ensuring that the crop seeds are seeded evenly in the land and allowing crops to grow more evenly, which is practical and suitable for extensive promotion and use.\nC: A method and device for controlling the seeding depth of a no-tillage seeder. The device is disposed on the no-tillage seeder. The device for controlling the seeding depth of the no-tillage seeder comprises: an overall control system (1); a detection system, comprising a furrowing depth detecting unit (21), a pressing force sensor (22), a compaction force sensor (23) and a data acquisition unit (24); and a regulating system, comprising a hydraulic controller (31), a hydraulic valve group (32), a pressing oil cylinder (33) and a compacting oil cylinder (34).\nD: A multifunction foldable bed comprising a folding-type bed (1). A center vertical board (12) is arranged at one side of the folding-type bed (1). End vertical boards (11), side upper boards (13), and side lower boards (14) are arranged symmetrically at two sides of the center vertical board (12). The center vertical board (12), the end vertical boards (11), the side upper boards (13), and the side lower boards (14) are assembled to form a parallelogram-shaped linked structure. End upper boards (15) and end lower boards (16) fitted with the end vertical boards (11) are arranged at ends of the folding-type bed (1). Multiple flexible casters (10) are arranged on the bottom face of the folding-type bed (1), while a wooden board (17) is arranged on the top face. Because the multifunction foldable bed is provided with the casters (10), the effects of folding, effortless moving, and causing no damage to a floor (F) are thus provided; also, when in use under a prescribed load, the end vertical boards (11), the end lower board (16), and the casters (10) act with each other, thereby coming into contact with the floor (F) over a large area, a significant stabilization effect is thus provided.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA nutrient solution management technique based on the length of a leaf of a greenhouse tomato, comprising the following steps: 1, subtracting from the leaf length of a feature leaf of a greenhouse tomato a standard leaf length for the feature leaf, excess water and fertilizer supply being indicated if the result is greater than zero, insufficient water and fertilizer supply being indicated if the result is less than zero, and adequate water and fertilizer supply being indicated if the result is equal to zero; 2, subtracting from the current electric conductivity value of a nutrient solution used in watering the EC value of the nutrient solution in a water and fertilizer deficit condition, multiplying the difference by the number of days the nutrient solution has been used in watering, and the result being the amount of nutrients of the nutrient solution excessively or insufficiently applied, and utilizing the average growth rate, a, of the feature leaf to deduce the current electric conductivity value of the nutrient solution used in watering; and 3, determining, on the basis of the amount of nutrients of the nutrient solution excessively or insufficiently applied, a final electric conductivity value of the nutrient solution for adjustment, and watering the crop with the adjusted nutrient solution. Only the length of the feature leaf of the greenhouse tomato needs to be measured, one-time investment incurred is low, and the measurement is simple and easy.\nA: A nutrient solution distribution device and a method for monitoring concentration of a nutrient solution. The nutrient solution distribution device comprises: a plurality of sub-nutrient tanks (102), for storing the nutrient solution and distributing the nutrient solution to plants; a reservoir nutrient tank (104), connected to each of the sub-nutrient tanks (102) for delivering the nutrient solution to each of the sub-nutrient tanks (102); a plurality of sensors (106), for detecting concentration values of the nutrient solution in each of the sub-nutrient tanks (102) and the reservoir nutrient tank (104); a nutrient solution formulation device (108), connected to the reservoir nutrient tank (104) and for delivering the nutrient solution to the reservoir nutrient tank (104); and a controller, connected to the reservoir nutrient tank (104), each of the sub-nutrient tanks (102), each of the sensors (106) and the nutrient solution formulation device (108). The nutrient solution distribution device and the method for monitoring the concentration of the nutrient solution allow the concentration values of the nutrient solution in each of the sub-nutrient tanks and the concentration values of the reservoir nutrient solution to meet concentration criteria, preventing the concentration of the nutrient solution in the sub-nutrient tanks or the reservoir tank from decreasing due to plant absorption or water evaporation, ensuring normal plant growth.\nB: A multi-scale habitat information-based method and device for detecting and controlling water and fertilizer for crops in seedling stage: performing fusion analysis on multi-scale features of the water and fertilizer stress of crops on the basis of crop canopy-scale three-dimensional laser scanning information, foliage-scale polarization-hyperspectral imaging information, and micro-scale micro-CT scanning information; combining the real-time feedback of the temperature, humidity, illumination and substrate moisture content within a crop growing greenhouse; by means of multi-information fusion modeling, comprehensively determining and feeding back the water and fertilizer stress of the crops as well as water requirement and fertilizer requirement information, and providing policy information for the amount of fertilization and irrigation. On the basis of the policy information for water and fertilizer, and on the basis of frequency conversion speed control technology and pipeline constant pressure control technology, a water and fertilizer control system controls the pressure of a pipeline and the flow rate of the fertilizer by means of dynamically controlling the rotation speed of an irrigation pump and a fertilizer pump, and thus, combined with the dynamic feedback of an EC value, the accurate control of a liquid fertilizer ratio and irrigation volume is achieved.\nC: A plant cultivation device for a garden. The plant cultivation device comprises a cultivation table (1). The cultivation table (1) is internally provided with a grid of holes (2). Each of the grid of holes (2) is provided with plant cultivation mud. A transmission slide rail (4) is mounted at one side of the cultivation table (1). Two ends of the transmission slide rail (4) are respectively provided with a transmission motor (5). One of the transmission motor (5) is connected to a watering device via a transmission sprocket-wheel (6). The watering device comprises a water storage bottle (8) and a watering tube (7). The water storage bottle (8) is provided above the transmission sprocket-wheel (6). The watering tube (7) is provided above the grid of holes (2) via the transmission sprocket-wheel (6). A nutrient solution is filled into the water storage bottle (8) of the plant cultivation device for the garden. The transmission sprocket-wheel (6) drives the watering tube (7) to move to apply, in a small area, the nutrient solution to a seedling (3) being cultivated in the plant cultivation mud. The transmission motor (5) drives the transmission sprocket-wheel (6) to move inside the transmission slide rail (4) to drive the watering tube (7) to move, performing large-area watering with the nutrient solution. The watering operation is easy, achieving mobile watering with an adjustable watering area.\nD: An ecological cultivation system with a high pressure fine water mist ,comprising a nutrient solution supply system and a cultivation frame (12), the root (2) of a crop seedling (15) being wrapped within a planting sponge body (14), the planting sponge body (14) being fixed on the cultivation frame (12), the nutrient solution supply system comprising a nutrient solution storage tank (1), a filter (3), a magnetizer (4), a low pressure ball valve (6), a high pressure pump (7), a high pressure ball valve (9), and a high-pressure fine water mist sprayer (10), a liquid outlet of the nutrient solution storage tank (1) being connected to a water inlet of the high pressure pump (7) by means of the filter (3), the magnetizer (4), and the low pressure ball valve (6) being connected in series, and a water outlet of the high pressure pump (7) being connected by means of the high pressure ball valve (9), to the high-pressure fine water mist sprayer (10) provided within the cultivation frame (12). Said system is easy to produce, easy to operate, and it is easy to perform automatic control and solid cultivation, improving the utilization rate of a greenhouse.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn intra-plot seed printer self-checking system, which relates to the technical field of seeding, and is used for detecting the flatness of soil. The system comprises: a rack, wherein supporting legs are arranged at the bottom part of the rack, and rollers are arranged at the bottom part of the supporting legs; and a detection unit, which comprises a guide pipe and infrared emitters that are fixed to the two adjacent side walls of the rack, and water and floating balls that are arranged in the guide pipe, the guide pipe being a "]"-shaped structure that has upward-facing opening. When the rack is in a horizontal state, the floating balls are arranged in vertical parts at two ends of the guide pipe under the buoyant action of the water; infrared receivers are arranged at two ends of the side walls of the rack on which the infrared emitters are mounted; the two infrared receivers and the infrared emitters are located on the same straight line; and a shading belt that blocks the linear propagation of infrared rays is arranged in the middle of the floating balls. According to the present invention, the inclination state of the rack may be detected, and seeding precision is thus guaranteed.\nA: An intelligent seed tape braiding machine, used for adjusting the distance between seeds on a seed tape according to the ground flatness in the sowing process. The intelligent seed tape braiding machine comprises in order along the direction of movement: a winding disc on which the seed tape is wound; a carrier roller, a circular groove being formed in the outer wall of the carrier roller; a support table, the upper surface of the support table being in contact with the seed tape, a recess being formed in the upper surface of the support table, the support table being provided with a stapler mounting recess communicated with the recess, and a collection cavity being formed in the lower portion of the support table; a pressure rod movably arranged on the support table and being of a "7"-shaped structure, a lifting mechanism being provided between the vertical part of the pressure rod and the support table, and the horizontal part of the pressure rod being disposed above the recess; a cutting and connecting unit used for cutting and then connecting the seed tape; and a compaction unit comprising a pair of pressure rollers arranged up and down. According to the present invention, the distance between two seeds on a certain section of the seed tape is adjusted by cutting and reconnecting the seed tape, so as to ensure the uniformity of the sowing distance.\nB: Disclosed are a GPRS technology-based stage performer safety assurance system and method, specifically relating to the technical field of stage safety monitoring. The safety assurance system comprises a lifting stage; fixing blocks are fixedly provided at four corners of the top end of the lifting stage; a first infrared emitter and a first infrared receiver are respectively embedded in two adjacent surfaces of the outer end of each fixing block; a hollow-square-shaped recess is formed in the top end of the lifting stage; a rectangular frame is provided inside the hollow-square-shaped recess; an electric push rod is fixedly provided at the bottom end of the interior of the hollow-square-shaped recess; a groove is formed in the top end of the lifting stage; a protection assembly is provided inside the groove; and a positioning assembly is placed at the top end of the lifting stage. According to the present invention, the rectangular frame extends out of the top end of the lifting stage to surround the outer sides of the feet of performers to protect the performers, the two feet of each performer are fixed by means of tight elastic straps, the protection safety is improved, the performers are reminded to be in a safe area all the time by means of the positioning assembly, and the safety assurance performance is further improved.\nC: Disclosed is an infrared-sensing splash-proof umbrella with a deformable umbrella cover, wherein a battery (5) is in circuit connection with a central processor (6), the central processor (6) is in circuit connection with a wireless receiver (7), a distal end of each of umbrella ribs (3) is connected to an infrared sensor (8) for sensing a passer-by in the near distance, a wireless transmitter (9) is connected to the infrared sensor (8), the infrared sensor (8) is arranged corresponding to a telescopic rod assembly (4); and the infrared sensor (8) is in signal connection with the wireless receiver (7) of the central processor (6) by means of the wireless transmitter (9). By arranging a plurality of infrared sensors (8) on end parts of the umbrella ribs (3), it can be detected whether a passer-by is in the vicinity, and if it is detected that there is a passer-by, the umbrella cover is held up, so as to reduce rainwater trickled down from the umbrella cover splashing the person in the vicinity, while preventing the person holding the umbrella from being wetted by rain.\nD: The present invention relates to a metal hair dryer with an adjustable air volume. The hair dryer comprises: an air-blocking plate that is arranged at an air inlet of the hair dryer, is of a circular structure and is used for adjusting the air intake volume of the hair dryer; a field data extraction device comprising an infrared transmitter, an infrared receiver, an ARM11 processor and an extraction controller, wherein the infrared transmitter is located on a data collection device and is used for vertically transmitting an infrared signal downwards, and the infrared receiver is located beside the infrared transmitter and is used for receiving the infrared signal, which is reflected back; and an air-blocking plate driving device, which is respectively connected to a human body detection device and the air-blocking plate and is used for enabling an operation on the air-blocking plate when the human body detection device determines that there is a human body. By means of the present invention, an effective authentication mechanism is introduced for the hair dryer.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA hybrid rice seedling mechanized transplantation and cultivation method with a high hill density and single seedling per hill. A photoelectric color sorter is used to remove non-germinating hybrid rice seeds, such that a germination rate of sowing seeds is ≥ 98％. A manual sower or printing sower is used to position individual seeds for seed-sowing and seedling-growing. Next, a seedling-transplanting machine transplants seedlings with a high hill density and single seedling per hill, the transplanting density being 24,000-25,000 hills per acre for double-cropping rice and 18,000-20,000 hills per acre for single-cropping rice. After tillering, high productivity management measures are taken to perform field crop management. The method can save the cost of seeds and cultivate strong seedlings, thus significantly improving production and increasing comprehensive benefits of rice plantation.\nA: The invention discloses a small-grain type sterile rice line breeding method, and a simple seed production method for a hybrid rice. The small-grain type sterile line rice breeding method comprises the following steps: hybridizing C815S as a female parent with Qi-Gui B as a male parent to produce a F1 hybrid; growing the F1 and hybridizing the F1 with a H155S as a female parent to produce a F1' hybrid; growing the F1' to obtain a F2' generation, then isolating, from the F2' generation and a F3' generation, an individual plant with an ideal plant architecture, strong tillering, shorter height, and smaller grain size; and performing, for two or more generations, directional breeding to obtain a small-grain type sterile line. The small-grain type sterile rice line bred using the sterile rice line breeding method has the advantages of a high out-crossing setting rate, high germination potential and seedling survival rate, excellent storage stability, and a low black smut incidence. Using the invention as the basis for seed production for a small-grain type sterile rice line and large-grain type restorer rice lice allows simultaneous harvesting of the male parent and the female parent and selection based on grain thickness, thereby simplifying seed production for a hybrid rice.\nB: A rice ridge-type plant-hole position-setting cultivation method, relating to a rice cultivation method and solving the technical problem of current rice cultivation land having low yields. The present rice ridge-type plant-hole position-setting cultivation method is the product of photosynthetic physics research and photosynthetic chemistry applied research in regard to the photosynthetic efficiency of rice growth, and can achieve, according to economic yields, a calculated efficiency of the ability of rice photosynthesis to utilize solar energy of 0.7%~1.5% per 1hm 2 . For seedlings using a rice vegetative body early-fertility single plant-hole position-setting cultivation method, short maturation time and medium maturation time rice varieties achieve stage-two tillers, and long maturation time varieties achieve stage-three tillers. For rice fields using a rice ridge-type plant-hole position-setting cultivation method, rice achieves a 100% tiller rate of 100% tillering ability, early maturation time varieties achieve stage-four tillers, medium maturation time varieties achieve stage-five tillers and late maturation time varieties achieve stage-six tillers. The number of tillering plants is controlled, and the vegetative growth period is converted to a reproductive growth period in an early stage for young ears to differentiate into large ears. The range of increased yield per mu for early maturation time rice varieties is 700kg〜1300kg, for medium maturation time rice varieties is 800kg〜1400kg, and for late maturation time rice varieties is 900kg〜1500kg.\nC: An agricultural hand-held seed planter, comprising a cylinder (1); a top portion thread of the cylinder (1) is sleeved with a quantitative receiving cylinder (2), a top portion thread of the quantitative receiving cylinder (2) is sleeved with a funnel (3), and a valve device (4) is fixedly mounted at a middle portion at a side of the funnel (3); a fixed tip (5) is fixedly connected to a side of a bottom portion of the cylinder (1), and a movable tip (6) is hinged to the other side of the bottom portion of the cylinder (1), a side of the movable tip (6) being movably connected to a side of the fixed tip (5).\n\nIn the present agricultural hand-held seed planter, by means the top portion thread of the cylinder (1) being sleeved with the quantitative receiving cylinder (2) and the top portion thread of the quantitative receiving cylinder (2) being sleeved with the funnel (3), the number of quantitative receiving cylinders (2) is purposefully increased according to the size of the seeds to be planted, while the valve device (4) is provided on the funnel (3) and a blocking device (25) is provided at a top portion of an inner cavity of the cylinder (1) so as to facilitate the quantitative metering of seeds planted each time, and thus a quantitative control function of the agricultural hand-held seed planter may be achieved.\nD: The present invention relates to agricultural technical field. A parental purification method, improved maize variety, and maize seed production method. The maize seed production method comprises: land selection, parent purification, seeding time setting, seeding space setting, fertilization management, roguing, watering management, maternal emasculation, flowering management, harvesting, and post-harvest processing. The hybrid maize seed production technology provided by the present invention enables the purity and the germination rate of the hybrid seeds to reach more than 98% and the quality to reach the international advanced level.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA mouse catching box comprises a box body (10), a lifting platform (20), and a control assembly (40). The box body (10) is provided with a trap opening (102) and a recovery opening (104). The lifting platform (20) is disposed at the bottom of the box body (10), and a mouse catching platform (30) parallel to the lifting platform (20) is disposed above the lifting platform (20). The control assembly (40) is disposed on the box body (10), and comprises a voltage measurement module (402), a controller (404), a high-voltage transformer (406), and a power grid (408). The voltage measurement module (402) transmits a triggering signal of the power grid (408) to the controller (404), and the controller (404) controls the high-voltage transformer (406) to supply power to the power grid (408). The power grid (408) comprises a positive power grid line (302) and a negative power grid line (304). The negative power grid line (304) in disconnection is divided into three segments connected respectively to a negative electrode of the high-voltage transformer (406). When a mouse connects the middle segment of the negative power grid line (304) to the positive power grid line (302), a triggering signal is generated. The mouse catching box has the following advantages: the power grid is densely arranged and the whole grid outputs a high voltage, thereby improving the efficiency for killing mice; the automatic return design of the mouse catching box makes the device automatically resets after the killing, and the mouse catching box can be continuously used to improve the long lasting effect.\nA: A new multi-functional mosquito and fly killer lamp, comprising a lamp holder (1). A lower side of the lamp holder (1) is provided with a lamp body main body (4). An upper side of the lamp body main body (4) is provided with a driving controller (2). A right side of the driving controller (2) is provided with an odor mosquito and fly trapping box (3). A lower side of the lamp body main body (4) is provided with a mosquito and fly trapping luminous member (5). A lower side of the mosquito and fly trapping luminous member (5) is provided with a first high-voltage grid (6) and a second high-voltage grid (12). A lower side of the second high-voltage grid (12) is provided with a first illuminating luminous member (7). Mosquitoes and flies can be remotely trapped by adding a mosquito trapping agent with a lactic acid odor inside the odor mosquito and fly trapping box (3), thereby expanding the usable area. After being attracted and coming into contact with the first high-voltage grid (6) or the second high-voltage grid (12), the mosquitoes and flies can be killed. The first illuminating luminous member (7) and a second illuminating luminous member (10) are provided with LED beads. The new multi-functional mosquito and fly killer lamp has plentiful functions and can play a role in illumination.\nB: A mousetrap capable of capturing multiple mice. The mousetrap comprises an upper box body (10), a lower box body (20), and a mouse storage box (30). The lower box body (20) is provided with at least a mouse intake step (21). A tail end of the mouse intake step (21) is horizontally provided with a high-voltage electric board (40). The mouse storage box (30) is arranged below the high-voltage electric board (40). A driving motor (50) is arranged in the lower box body (20), and a driving shaft of the driving motor (50) is sleeved with a driving gear (51). A rack (41) meshing with the driving gear (51) is fixed on the lower surface of the high-voltage electric board (40), so that the high-voltage electric board (40) is driven by the driving gear (51) to translate. A first baffle (11) is vertically arranged in the upper box body (10) on one side of the high-voltage electric board (40), and the first baffle (11) is used to block a mouse body when the high-voltage electric board (40) is translated, such that the mouse body falls into the mouse storage box (30). The mousetrap has an ingenious structure and a high space utilization rate.\nC: Disclosed is a safe and energy-saving mosquito killing lamp, comprising a lamp holder (1), a shell (2) connected to the lamp holder (1), and a connecting base (3) connected to the shell (2). A first cavity is formed between the shell (2) and the connecting base (3). The connecting base (3) comprises a tapered portion extending into the first cavity, and a lamp post (11) arranged on the tapered portion. A mosquito trapping light source (15) is arranged on an outer surface of the lamp post (11). A mosquito killer (12) is arranged on the periphery of the mosquito trapping light source (15). The mosquito killer (12) is fixed inside the shell (2). The mosquito killer (12) comprises a positive electric net (1201) and a negative electric net (1202). The positive electric net (1201) and the negative electric net (1202) encircle each other and are not connected to each other. By means of arranging two electric nets, the safety performance of the mosquito killing lamp is improved. Since people cannot touch the inner electric net, the risk of electrical injuries due to accidentally touching the electric net can be avoided. By arranging the mosquito trapping light source (15) around the outer surface of the lamp post (11), the effect of efficiently trapping and killing mosquitoes at 360 degrees and the effect of energy conservation and environmental protection are achieved.\nD: Disclosed is a safe and energy-saving mosquito killing lamp, comprising a lamp holder (1), a shell (2) connected to the lamp holder (1), and a connecting base (3) connected to the shell (2). A first cavity is formed between the shell (2) and the connecting base (3). The connecting base (3) comprises a tapered portion extending into the first cavity, and a lamp post (11) arranged on the tapered portion. A mosquito trapping light source (15) is arranged on an outer surface of the lamp post (11). A mosquito killer (12) is arranged on the periphery of the mosquito trapping light source (15). The mosquito killer (12) is fixed inside the shell (2). The mosquito killer (12) comprises a positive electric net (1201) and a negative electric net (1202). The positive electric net (1201) and the negative electric net (1202) encircle each other and are not connected to each other. By means of arranging two electric nets, the safety performance of the mosquito killing lamp is improved. Since people cannot touch the inner electric net, the risk of electrical injuries due to accidentally touching the electric net can be avoided. By arranging the mosquito trapping light source (15) around the outer surface of the lamp post (11), the effect of efficiently trapping and killing mosquitoes at 360 degrees and the effect of energy conservation and environmental protection are achieved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn unmanned aerial vehicle (100) comprises a fuselage (110), a spraying device (120) and a controller (130). The spraying device comprises a support (121), at least two spray nozzles (122) and a driving mechanism (123). The support is connected to the fuselage. The driving mechanism is mounted on the support, and can drive the at least two spray nozzles to be movably provided on the support. The controller is electrically connected to the driving mechanism, and is used to control, according to an acquired control instruction, operation of the driving mechanism to change positions of the at least two spray nozzles relative to the support so as to adjust the spray width of the unmanned aerial vehicle. In the unmanned aerial vehicle, the controller controls, according to the acquired control instruction, operation of the driving mechanism to change the positions of the spray nozzles relative to the support so as to perform online adjustment of the spray width of the unmanned aerial vehicle for different spray scenarios, thereby avoiding repeated or missed spraying of certain regions.\nA: An arm assembly (100), comprising first arms (10), second arms (20), and adjustment mechanisms (30). Each adjustment mechanism (30) is connected to at least one of each first arm (10) and each second arm (20); and at least part of the adjustment mechanism (30) can move relative to the first arm (10) and/or the second arm (20), so as to adjust the natural frequency of an unmanned aerial vehicle (1000), thereby reducing the situation that the unmanned aerial vehicle (1000) generates resonance, and further improving the imaging quality of a photographing apparatus (500) and the flight stability of the unmanned aerial vehicle (1000). Further involved are the unmanned aerial vehicle (1000) and a control method for the arm assembly (100).\nB: An unmanned aerial vehicle (1000) comprises spraying systems (100) and a controller (510). Each spraying system (100) comprises a liquid storage device (10), a liquid conveying pipe (20), and a spray head assembly (30). The spray head assembly (30) comprises a spray head body (32), a nozzle (34), and an ultrasonic generating component (36). The liquid conveying pipe (20) can guide a liquid in the liquid storage device (10) into the spray head body (32), and then the liquid is sprayed by means of the nozzle (34). The ultrasonic generating component (36) can generate vibration under the control of the controller (510) to drive the nozzle (34) to vibrate, so as to change the particle size of liquid droplets that are sprayed by means of the nozzle (34). Further disclosed is a spraying control method for use in the unmanned aerial vehicle. The unmanned aerial vehicle and the spraying control method therefor can achieve the spraying requirement of spraying different liquids by using a nozzle, thereby being capable of reducing the use cost of a user; moreover, the user does not need to frequently replace the nozzle, thereby being capable of saving the time of the user, and also being capable of avoiding abrasion caused during nozzle replacement.\nC: Disclosed is a propulsion system for an unmanned aerial vehicle, the system comprising a propulsion motor (121) and a locking device (203). The propulsion motor (121) is used to drive a propeller (122) of the unmanned aerial vehicle (100). The locking device (203) is used to releasably couple the propeller (122) to the propulsion motor (121). The locking device (203) comprises a matching part (301), a part of the matching part (301) being able to move with respect to the propulsion motor (121) and/or the propeller (122) along a rotating axis (302) of the propulsion motor (121) such that the matching part (301) is located in a matching position where the propeller (122) and the propulsion motor (121) are locked and in a separated position different from the matching position. The propulsion system can improve the safety of the unmanned aerial vehicle. Further disclosed are a propeller for an unmanned aerial vehicle, an unmanned aerial vehicle, a suite of the unmanned aerial vehicle, a method for coupling the propeller to the unmanned aerial vehicle, a controller for the vehicle body, a control system, and a method for operating the controller in the unmanned aerial vehicle.\nD: Disclosed is an undercarriage and an unmanned aerial vehicle provided with same, the undercarriage (40) comprising: a driving device (41), a transmission mechanism (43) capable of transforming a linear motion into a rotation motion, a first sleeve (44) and a support rod (48), wherein the transmission mechanism (43) is connected to the driving device (41); the transmission mechanism (43) passes through the first sleeve (44); and the support rod (48) is connected to the first sleeve (44), and the driving device (41) is connected to the support rod (48) via the transmission mechanism (43) and can drive the support rod (48) to be rotatably folded or unfolded relative to the first sleeve (44). In this manner, during the flight of the unmanned aerial vehicle, the support rod (48) can be folded and retracted to prevent the support rod (48) of the undercarriage from blocking a camera device (30) mounted on the unmanned aerial vehicle, such that the shooting effect of the camera device (30) is improved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn electromagnetic charge-sensitive electric mosquito swatter, comprising a charging-discharging circuit (1), a boost circuit (3) and a central control circuit (4). The charging-discharging circuit (1) provides required power to the boost circuit (3). Also comprised are an electromagnetic charge space scanning circuit (5) and a gate circuit (6); the gate circuit (6) is bridged between the electromagnetic charge space scanning circuit (5) and the central control circuit (4) so that when the electromagnetic charge space scanning circuit (5) senses a holding signal of a human hand holding the swatter, the holding signal is converted into a startup signal by means of the gate circuit (6) and is transmitted to the central control circuit (4); and the central control circuit (4) drives the charging-discharging circuit (1) to provide power to the boost circuit (3). The present mosquito swatter has the advantages of being convenient and safe to use and being effective in shocking mosquitos.\nA: A working control circuit of an ultrasonic atomizing sheet and an ultrasonic electronic cigarette, the working control circuit comprising a power supply module (1), a boosting circuit (2), a smoking switch (3), a controller (4), a driving circuit (7), and an LC oscillation circuit (5); an output end of the boosting circuit (2) is further connected to the driving circuit (7) by means of a voltage regulating circuit (6); the voltage regulating circuit (6) comprises a first MOS transistor, a first resistor and a second resistor; a reference level feedback end of the boosting circuit (2) is grounded by means of a third resistor, while a voltage output end of the boosting circuit (2) is connected to the reference level feedback end of the boosting circuit by means of a fourth resistor; a gate of the first MOS transistor and an end of the second resistor are both connected to an output end of the controller (4), a drain of the first MOS transistor is connected to the voltage output end of the boosting circuit (2) by means of the first resistor, and a source of the first MOS transistor is connected between the third resistor and the fourth resistor, the other end of the second resistor being grounded. The ultrasonic atomizing sheet has a fast start-up speed, a long service life, a stable amount of smoke, low usage costs, and good user experience.\nB: An anti-electric shock electric mosquito swatter having a conductive plastic electrode mesh, comprising a mosquito swatter body (1), a power mesh assembly (2) and a protective mesh; the mosquito swatter body (1) comprises a handle (11), a hand grip (12) and a swatter frame (13), the hand grip (12) is provided with an inner cavity (122) for installing a power supply control circuit (121) and a battery; the power mesh assembly (2) consists of a positive electrode portion and a negative electrode portion, the positive electrode portion comprises several strips of positive electrode conductors (21) and positive electrode conductive connectors (22), the negative electrode portion comprises several strips of negative electrode conductors (23) and negative electrode conductive connectors (24), the several strips of positive electrode conductors (21) and the several strips of negative electrode conductors (23) are distributed in the swatter frame (13) in a staggered manner at intervals so as to form an electrode mesh of an electrostatic field for intercepting and attracting mosquitoes; and the protective mesh comprises an upper protective mesh (3) provided on one side of the swatter frame (13) and a lower protective mesh (4) provided on the other side of the swatter frame, the upper protective mesh (3) and the lower protective mesh (4) are respectively provided on two sides of the power mesh assembly (2), and fixed on the swatter frame (13). The mosquito swatter has a simple structure, is easy to manufacture, and is formed into an integrated structure.\nC: A shift register, a gate drive circuit, and a gate drive method. The shift register comprises: a display pre-charging reset circuit (3), a sensing control circuit (1), a sensing pre-charging reset circuit (2), a pull-down control circuit (4), a display noise reduction circuit (5), and an output circuit. The sensing control circuit (1) and the sensing pre-charging reset circuit (2) are connected to a sensing control node. The display pre-charging reset circuit (3), the sensing pre-charging reset circuit (2), the pull-down control circuit (4), and the output circuit are connected to a pull-up node (PU). The pull-down control circuit (4), the display noise reduction circuit (5), and the output circuit are connected to a pull-down node (PD). The output circuit is configured to have one or more signal output terminals (OUT), and comprises one or more output sub-circuits (6) provided in one-to-one correspondence with the signal output terminals (OUT). The display pre-charging reset circuit (3) is connected to a first signal input terminal (STU1), a second signal input terminal (STU2), a first scan power supply terminal (D), and a second scan power supply terminal (R), and is configured to write, in response to control of the first signal input terminal (STU1), a first scan voltage provided by the first scan power supply terminal (D) to the pull-up node (PU), and to write, in response to control of the second signal input terminal (STU2), a second scan voltage provided by the second scan power supply terminal (R) to the pull-up node (PU). The display noise reduction circuit (5) is connected to the first signal input terminal (STU1), the second signal input terminal (STU2), the first scan power supply terminal (D), and the second scan power supply terminal (R), and is configured to write, in response to control of the first signal input terminal (STU1), the second scan voltage to the pull-down node (PD), and to write, in response to control of the second signal input terminal (STU2), the first scan voltage to the pull-down node (PD).\nD: Disclosed are a DC voltage conversion circuit, a DC voltage conversion method and a liquid crystal display device. The circuit comprises: a boost circuit 1, a charge pump circuit 2, and a control circuit 3; the control circuit is additionally provided with a first current detection module 201, a second current detection module 202, and an AND gate Y1; a first current I1 in the boost circuit 1 is detected by means of the first current detection module 201, and a high level or a low level is supplied to a first input end of the AND gate Y1 according to the magnitude of the first current I1; a second current I2 in the charge pump circuit 2 is detected by means of the second current detection module 202, and a high level or a low level is supplied to a second input end of the AND gate Y1 according to the magnitude of the second current I2; when the first current I1 is relatively small and the second current I2is relatively large, namely the boost circuit 1 is at a light load and the charge pump circuit 2 is at a heavy load, a level at the output end of the AND gate Y1 is used to control a switch module 301 to increase the switch frequency of the switch module 301, so that the normal work of the charge pump circuit 2 is ensured, and the stability of the VGH voltage is improved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is an adipose tissue preservation solution, comprising: polyethylene glycol 400, human albumin, norfloxacin, low molecular dextran, and Ac-DEVD-CHO. The present invention uses the polyethylene glycol 400 as a base component for the first time; said substance has good compatibility with an oil-type substance, and may also separate out a lipid-type substance after being compatible with a water-type substance; and human albumin is used as a nutritional component of adipose mesenchymal stem cell preservation solution. In addition, an added apoptosis inhibitor may greatly improve the stress resistance of a cell and maintain cell viability, such that adipose tissue under the condition of in vitro and long-term transportation can still ensure that an adipose stem cell maintains the original cell morphology and biological characteristics. Meanwhile, the preparation method for a cell tissue preservation solution provided is simple, and the viability of an adipose mesenchymal stem cell may still be maintained very well within 72 hours.\nA: Provided in the present invention are a mesenchymal stem cell injection, a preparation method thereof and the use in preparing drugs for treatingdilated cardiomyopathy in children. The mesenchymal stem cells used in the present invention are derived from human umbilical cord and placenta, and the mesenchymal stem cell injection contains 2×10 5 -1×10 7  mesenchymal stem cells/ml, clinical-grade DMSO at a volume ratio of 5%-8%, human albumin at a mass-to-volume ratio of 1%-6% and a compound electrolyte solution.\nB: The present invention provides a mesenchymal stem cell injection, a preparation method thereof, and application thereof in preparing a drug for treating ulcerative colitis. The mesenchymal stem cell injection comprises the following ingredients: mesenchymal stem cells of 2×10 5 -1×10 7 /ml; DMSO with the volume ratio being 5-10%; human serum albumin with the mass-to-volume ratio being 1-6%; and 1% of low molecular dextran and a compound electrolyte solution.\nC: Provided in the present invention is a cell freezing medium for clinical use. In particular, the cell freezing medium of the present invention comprises the following components: (1) human albumin; (2) a cryoprotectant, wherein the cryoprotectant comprises a combination of one or more of dimethyl sulfoxide, glycerol and ethylene glycol; (3) a saline buffer, wherein the saline buffer is a solution comprising ions Na+, K+, Mg+, Cl- and CH3COO-; (4) a vitamin; and (5) an amino acid, wherein the concentration of the human albumin is 1-20% (w/v). The cell, after long-term cryopreservation with the freezing medium of the present invention, has a high viability, and the cellular efficiency maintains a high uniformity. The grade of purity of the freezing medium of the present invention is the pharmaceutical grade or USP grade; and the freezing medium is safe and reliable for clinical use, and can be used for conventional adherent and suspension cells.\nD: The present invention provides a mesenchymal stem cell injection, a preparation method thereof, and application thereof in preparing a diabetes drug. Mesenchymal stem cell used by the present invention come from the human umbilical cord and the human placenta. The ingredients of the mesenchymal stem cell injection are: mesenchymal stem cells, human serum albumin, low molecular weight heparin, a compound amino acid, vitamin C, and a solution medium. The solution medium is a compound electrolyte solution, glucose water, or a normal saline solution.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vertical household noodle maker, comprising: a base (1) with a motor, a stirring cup (2) connected to the base, a stirring rod (3), a dough kneading cylinder (6), a screw (4), a die head (5) and a control unit. The stirring rod is longitudinally disposed in the stirring cup, and comprises a rod body (31) and stirring teeth (32, 33) disposed in the rod body. The dough kneading cylinder is provided horizontally at one side below the stirring cup, and the screw is disposed in the dough kneading cylinder. The motor drives the stirring rod and the screw to rotate, and the bottom of the stirring cup is provided with a flour feeding opening (7) connected with the dough kneading cylinder. The inner wall of the stirring cup is provided with a noodle cutting rod (8), the noodle cutting rod at least partially overlapping with the projection of the stirring teeth in the horizontal direction when the stirring teeth rotate to a position of the noodle cutting rod under the driving force of the motor. The noodle maker leaves no residue, is easy to feed flour to and has high efficiency.\nA: Disclosed is a multi-functional noodle machine, comprising a machine body (1) and an electric motor (2) provided in the machine body, wherein a kneading bucket (3) is provided above the machine body, a stirring plate and a stirring rotating shaft are provided in the kneading bucket, a dough pressing barrel (4) is provided at the front of the machine body, a dough pressing screw (5) is provided in the dough pressing barrel, the front end of the dough pressing screw is sheathed with a replaceable noodle forming module (8), and a movable valve (31) is provided between the dough pressing barrel and the kneading bucket. Opening the movable valve throws dough in the kneading bucket into the dough pressing barrel under the centrifugal force of the stirring apparatus. A gear transmission system is provided between the electric motor and the dough pressing screw and stirring rotating shaft. The structure of the multi-functional noodle machine is simple.\nB: The present utility model relates to the technical field of blenders, and particularly relates to a lifting device for a stirring cup of a blender, comprising a lifting device provided below a stator inside a base of the blender. The lifting device comprises a miniature direct current reduction motor, a transmission screw rod, a motor support base, a push column, a support plate and a push column cap; the miniature direct current reduction motor is fixedly connected to the motor support base, the motor support base is fixedly connected to the support plate, and an output shaft of the miniature direct current reduction motor is fixedly connected to the transmission screw rod, the transmission screw rod is in threaded connection with the push column, and the push column cap is fixedly connected to the push column; when the transmission screw rod rotates, the push column can only move up and down within the support plate under the constraint of the guide structure; with such a structural arrangement, when the push column moves upwards, the push column cap is pressed against the bottom of the separated rotor inserted into the stirring cup of the stator to raise the stirring cup, thus achieving the effect of easily taking the stirring cup, effectively overcoming the gravity of the stirring cup and the attraction effect of the separated rotor on the stator. The device has simple structure, ingenious design, and high practicality.\nC: A stirring mill comprises a base (100) and a stirring cup (200) disposed on the base (100). A rotating shaft (300) is provided in the stirring cup (200). At least one first stirring cutter (400) is arranged on the rotating shaft (300), which can be rotated with the rotating shaft (300) and moved up and down along it. The first stirring cutter (400) is rotatablely driven by the rotating shaft (300), so as to perform the cutting and stirring operations. And at the same time, the first stirring cutter (400) is moved up and down along the rotating shaft (300) during the rotation, so as to contact with the stirring materials better and perform the cutting and stirring operations. In this way, the cutting and stirring efficiency is improved greatly, the stirring time is reduced effectively, and the cutting and stirring effect is better.\nD: A food processor, comprising a main machine (1) and a blending cup assembly (2) provided on the main machine (1). The blending cup assembly (2) comprises a blending cup (21) and a blade assembly (22) partially accommodated in the blending cup (21). A dampening and noise reducing device is provided between the blending cup assembly (2) and the main machine (1). The dampening and noise reducing device may be a dampening pad (5), a spring structure, or other dampening devices. The dampening and noise reducing device can reduce the vibration of the blending cup assembly (2) and the main machine (1) during the high speed rotation of blades (211), while facilitating the reduction of the noise generated by the food processor.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn oiling device, used for oiling the outer wall of an inflated sausage casing pipe, and comprising a plurality of circular oiling rollers (1), an oiling material layer, and a roller retaining device. The circular oiling roller (1) is in the shape of a waist drum which is thin in the middle and thick at both ends, and is capable of freely rotating around a center rotation axis; each circular oiling roller (1) is provided with a hollow oil injection hole on the center rotation axis; one end of the oil injection hole is closed, and the other end of the oil injection hole is communicated with an oil inlet pipe (4) by means of a rotary connector (3); a plurality of micropores (5) communicated with the oil injection hole are uniformly and peripherally distributed on the outer wall of each circular oiling roller (1). The oiling material layer is made of an oil adsorbing and spreading material and is wrapped around the outer wall of the circular oiling roller (1). The roller retaining device is designed to be suitable for pressing the circular oiling rollers (1) against the outer wall of the inflated sausage casing pipe. The quantity and outer wall profiles of the circular oiling rollers (1) are designed to enable the sausage casing pipe to correspond to at least one circular oiling roller (1) at any arc on the periphery of the cross section of the outer wall.\nA: A grinding mill internal spiral roller; a central hole (3) is provided in the axial center of a roll shaft, a spiral groove (4) is disposed on the outer ring of the roll shaft, and a rotating joint (5) is disposed on one end of the roll shaft; a distributive pipe (6) is disposed on the side proximal to the rotating joint (5) in the central hole of the roll shaft, the gap between the outer wall of the distributive pipe and the inner wall of the central hole being a water returning channel (7); one end of the distributive pipe is communicated with a water inlet (8) of the rotating joint (5), and a sealing structure (10) is disposed between the outer wall of the other end of the distributive pipe (6) and the inner wall of the central hole; a water outlet (11) is disposed on the central hole (3)and is communicated with one end of the spiral groove (4), and the other end of the spiral groove (4) is communicated with the water returning channel (7) through a water returning hole (13), and the tail end of the water returning channel (7) is communicated with a water returning outlet (12) of the rotating joint (5). The grinding mill internal spiral roller is reasonable in structure and has good working performance.\nB: Disclosed is a self-service power car-washing device, comprising a garage body (1), a power system and a spraying system. The power system comprises a roller assembly (2), a transmission shaft (3) and a locking mechanism (4); the roller assembly (2) is rotationally connected to the bottom of one end of the garage body (1), the transmission shaft (3) is rotationally connected to the garage body (1), the roller assembly (2) is in driving connection with the transmission shaft (3), and the locking mechanism (4) is arranged at the two ends of the roller assembly (2) to lock the roller assembly (2); and the spraying system comprises a water tank (5), a water pump (6), a water conveying pipe assembly (7), a spraying pipe (8) and a reciprocating mechanism (9), wherein the water tank (5) is arranged on the garage body (1), the water pump (6) is connected to the water tank (5), the transmission shaft (3) is in driving connection with the water pump (6); one end of the water conveying pipe assembly (7) is connected to the water pump (6), the other end of the water conveying pipe assembly is connected to the spraying pipe (8), and several nozzles (801) are arranged on the spraying pipe (8); the reciprocating mechanism (9) is arranged at the top of the garage body (1), and the transmission shaft (3) is in driving connection with the reciprocating mechanism (9); the spraying pipe (8) is slidably connected to an inner wall of the garage body (1), and the reciprocating mechanism (9) drives the spraying pipe (8) to reciprocate at the front end and the rear end of the garage body (1). The device is powered by automobile driving wheels, and an extra electric power device does not need to be equipped, such that electric energy is saved to a great extent, and unnecessary waste is avoided.\nC: A pellet machine roller (5), a pellet machine (17), a biomass pellet processing device, and a processing method. The biomass pellet processing device comprises a first conveyor, a slicing crusher, a second conveyor, a drying device, a third conveyor, the pellet machine (17), a cooling device, and a packing line. The pellet machine roller (5) comprises a roller body (1) and gear rings (2); a plurality of rows of gear rings (2) are arranged on the outer wall of the roller body (1) in the circumferential direction, and a groove (3) is formed between any two adjacent rows of gear rings (2); a plurality of through holes (31) are formed in each groove (3) in the circumferential direction, and one end, facing the outer side of the roller body (1), of the plurality of through holes (31) is a waist-shaped long hole (32).\nD: A sausage casing packaging barrel, comprising a barrel body (1). A top end surface of the barrel body (1) is fixedly connected to a side plate (2), a surface of the side plate (2) is provided with a groove, a first rotation shaft (3) is rotatably connected to an inner wall of the groove of the side plate (2), a surface of the first rotation shaft (3) is fixedly connected to a barrel cover (4), the bottom end of the barrel cover (4) is fixedly connected to a long rod (5), the bottom end of the long rod (5) is fixedly connected to a baffle plate (6), an outer wall of one side of the barrel body (1) is provided with a connection bar (7), one end of the connection bar (7) is fixedly connected to a outer wall of the barrel body (1), the other end of the connection bar (7) is fixedly connected to a scale (8), and an inner wall of the bottom end of the barrel body (1) is provided with a first spring (9). When a casing is placed, the casing can be inserted into a sleeve rod (12), the casing touches a swivel plate (15), and under the action of thrust and of a second rotation shaft (14), the swivel plate (15) rotates to drive a second spring (16) and a sponge sleeve (17) to rotate, the sponge sleeve (17) abuts against the casing, and the casing is fixed under the action of the elastic force of the second spring (16) to achieve the effect of fixation.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present application is an illumination device, comprising a storage shelf and an LED illuminator, the LED illuminator is provided at the lower end of the storage shelf, and male plugs electrically connected to the LED illuminator are movably provided at two ends of the storage shelf. The illumination device of the present application provides the LED illuminator on the storage shelf to solve the problem of insufficient illumination of articles under the storage shelf, and the illumination device can be used as an independent unit that is convenient to replace.\nA: A rotary concealed storage rack, comprising a storage rack body (1) and two upper and lower fixing plates (2), wherein top and bottom surfaces of the storage rack body (1) are each pivotally connected to the end part of one rotating plate (3), the other ends of two rotating plates (3) are pivotally connected to the two upper and lower fixing plates (2) respectively, and the storage rack body (1) is located between the two upper and lower fixing plates (2) when the storage rack body (1) is closed. Only the rear side of the storage rack is open, and the front, left, and right sides are wrapped. The storage rack is fixed on a wall. In an initial state, the rear side is closely attached to the wall, the rear side is closed by using the wall, and the front, left and right sides are exposed. When in use, along with the rotation of the rotating plates (3) relative to the two upper and lower fixing plates (2), the storage rack body (1) is separated from the wall, while the storage rack body (1) rotates relative to the rotating plate (3), and the rear side of the storage rack body (1) faces forward. Then, the rotating plates (3) are reset to return the storage rack body (1) between the two upper and lower fixing plates (2) so that it is easy to take items displayed on the storage rack body (1). The storage rack is attached to the wall, which does not occupy space. When not in use, the storage rack is equivalent to a fully enclosed structure, which may ensure the cleanliness and hygiene of the interior. When in use, the open side faces forward, making it easy to take the items. The storage rack has the characteristics of a beautiful appearance, not occupying countertop space, and being convenient to use.\nB: Disclosed are a storage shelf and a refrigerator provided with said storage shelf. The storage shelf has at least two mounting positions and comprises trays, a support rod, a support base and locking members; the locking members are provided on the support base and cooperate with the trays or with the support rod to form the mounting positions; the trays can be fixed at different mounting positions and can move along the axial direction or circumferential direction of the support rod by means of switching mounting positions.\nC: An electric shelf, comprising: at least one upright post (1) which is installed on the wall; a slider arranged on the upright post (1) and capable of sliding up and down relative to the upright post (1); at least one layer of shelf assembly (2) connected to the slider and which moves synchronously with the slider; and a linear driving device (7) connecting the slider to the upright post (1) and used for driving the slider to move relative to the upright post (1). The overall structure of the shelf is simple. The electric shelf is mounted on the wall by by means of mounting plates (3) at both ends of the upright post (1). The shelf assembly (2) is driven by means of a motor (5) to move along the upright post (1) under the drive of the linear driving device (7). The shelf assembly (2) descends when a user needs to take and store articles, and the distance from the bottom of the shelf assembly (2) to the floor may allow people to pass through after the shelf assembly (2) is raised, which may thus prevent the shelf assembly from occupying the effective space of the user.\nD: A photographing LED illuminating lamp capable of rotationally converting between a direct-lighting mode and a soft-lighting mode comprises a lamp holder (1), a light-emitting main body (2), and a support (3). The bottom of the light-emitting main body (2) is in rotational fit with the top of the lamp holder (1). The support (3) is disposed on the bottom of the lamp holder (1). The light-emitting main body (2) consists of a main body housing (4), a front LED light-source plate (5), a side LED light-source plate (6), and a light guide plate (7). A light-emitting window (10, 11) is disposed on each of a front side surface (8) and a rear side surface (9) of the main body housing (4). The front LED light-source plate (5) is mounted on one light-emitting window (10), and a plurality of LED light sources (12) whose irradiation directions are towards the front is disposed on the front LED light-source plate (5). The light guide plate (7) is mounted on the other light-emitting window (11). The side LED light-source plate (6) is mounted on the outer side of the light guide plate (7). A plurality of LED light sources (14) whose irradiation directions are towards the side surface (13) of the light guide plate is mounted on the side LED light-source plate (6). The problem of limitations of illuminating brightness due to certain loss of illuminating brightness in both direct-lighting illumination and soft-lighting illumination existing in the similar prior art is resolved.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultraviolet fluid treatment device, comprising a tube body (11), two or more than two ultraviolet lamps (6, 7) of different types and/or power, quartz sleeve tubes (8, 9), an ultraviolet intensity sensor assembly (12), and a control system; the ultraviolet lamps of different types and/or power comprise a medium-pressure multi-spectral ultraviolet lamp (7), a low-pressure ultraviolet lamp (6), or an excimer ultraviolet lamp; the ultraviolet intensity sensor assembly (12) monitors the intensity of the emitted light of the ultraviolet lamps in real time and feeds back same to the control system; on the basis of the feedback signals, the control system automatically regulates the power of the ultraviolet lamps and raises an alarm when the intensity is insufficient, and can also automatically regulate the power when the flow is insufficient or in special usages, or switch off a specific lamp to adaptively adjust the system power, greatly increasing working efficiency.\nA: An ultraviolet disinfection lamp, comprising a lamp holder (1) and a lampshade (2) connected to each other, and a plurality of ultraviolet lamp tubes (3) provided in the lampshade (2). The end of the lamp holder (1) connected to the lampshade (2) is provided with a protrusion (4). A communication hole (10) communicating with the interior of the lamp holder (1) is provided in the protrusion (4). A plurality of positioning holes (5) are arranged on the protrusion (4) around the circumference of the communication hole (10). The end of the lampshade (2) connected to the lamp holder (1) is provided with a bottom cover (6) covering the protrusion (4). The bottom cover (6) is provided with a first through hole (12) correspondingly communicating the communication hole (10) and a plurality of penetrating holes (7) correspondingly communicating with the positioning holes (5). The ultraviolet lamp tubes (3) extend into the lamp holder (1) through the first through hole (12) and the communication hole (10). The bottom cover (6) is provided with a plurality of support rods (8) arranged around the ultraviolet lamp tubes (3). One end of the support rods (8) extends into the positioning holes (5) through the penetrating holes (7) and is connected to the protrusion (4), and the other end is connected to a top cover (9) covering the tops of the ultraviolet lamp tubes (3). The end of the top cover (9) facing the ultraviolet lamp tubes (3) is provided with a protective ring (11) disposed around the ultraviolet lamp tubes (3). According to the ultraviolet disinfection lamp, the lampshade is easy to install, the bulb replacement is very convenient, and the overall structure of the lamp is simple.\nB: Provided are an ultraviolet sterilization lamp device (200) and a sterilization apparatus. The ultraviolet sterilization lamp device (200) comprises a housing (10) having an installation cavity and a ventilation opening (13), an ultraviolet lamp (30) provided in the installation cavity, a TEC module (81) for actively absorbing heat of the ultraviolet lamp (30), a heat dissipation module (82) for heat dissipation of the TEC module (81), a fan (83) for ventilation for the installation cavity through the ventilation opening (13), and a light-transmitting cover (60) for encapsulating the ultraviolet lamp (30) in the installation cavity. Light emitted from the ultraviolet lamp (30) is transmitted outwards through the light-transmitting cover (60). By means of providing the TEC module (81), the heat dissipation module (82) and the fan (83), heat dissipation can be effectively carried out for the high-power ultraviolet lamp (30). Moreover, the heat dissipation structure is very simple, and the ultraviolet lamp (30) can be dimensioned to be smaller than that in the prior art, so that the ultraviolet sterilization lamp device (200) is compact and small in overall structure, thereby satisfying requirements for the application thereof in some structures with limited space.\nC: A floor-type ultraviolet germicidal lamp, comprising a movable base (1) and a lamp body (2) provided on the movable base (1). The lamp body (2) comprises an ultraviolet lamp tube and a main control board electrically connected to the ultraviolet lamp tube; a plurality of human body sensors (21) electrically connected to the main control board are provided in the circumferential direction of the lamp body (2); the ultraviolet lamp tube is vertically provided in the lamp body (2); an upper cover (22) and a lower cover (23) are respectively provided at the upper and lower ends of the ultraviolet lamp tube; the movable base (1) comprises a base (11) and a connection rod (12) that are connected; the connection rod (12) is connected to the lower cover (23); a plurality of supporting legs (13) that are radially arranged are provided on the base (11); and universal wheels (15) are respectively provided at the ends of the supporting legs (13) distant from the base (11). The floor-type ultraviolet germicidal lamp can slide along each direction, and the human body sensors (21) are arranged, thereby being capable of preventing a human body from being damaged by ultraviolet rays.\nD: A seawater treatment system, comprising a sea chest valve box (1), a ballast water valve box (2), a ballast pump (3), an ultraviolet treatment device (5), a control device (4), a constant current output device (6), and a metal electrode (7). The ballast pump (3) is used for outputting an operation signal. The control device (4) is used for controlling, when receiving the operation signal, the ultraviolet treatment device (5) to be connected to an external power supply (9). The ultraviolet treatment device (5) is used for generating ultraviolet to kill marine organisms. The control device (4) is further used for cutting a connection between the ultraviolet treatment device (5) and the external power supply (9) when the operation signal is interrupted, and controlling the constant current output device (6) to be connected to the external power supply (9). The constant current output device (6) is used for outputting a current signal to the metal electrode (7). The metal electrode (7) is used for releasing metal ions to kill or expel the marine organisms. Also disclosed is a seawater treatment control method.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an edible blending oil with the function of preventing atherosclerosis and a preparation method therefor, containing a weight ratio of 0.2-0.4 : 0.9-1.1: 0.8-1.2 of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA), wherein the weight ratio of ω-6 polyunsaturated fatty acids (ω-6 PUFA) to ω-3 polyunsaturated fatty acids (ω-3 PUFA) is 2-8.5 : 1; and taking the selected raw materials and putting them into the dosing tank under stirring at a slow speed for 30-40 min at the ambient temperature of 20-40°C according to the above-mentioned dosage ratio, and the edible oil will then be obtained.\nA: A structured emulsion, comprising: 2-6% of an oil phase composition, 7-20% of a water-soluble composition, and 74-92% of water. In terms of fatty acids in the oil phase composition, the content of saturated fatty acids is less than or equal to 45%, the content of monounsaturated fatty acids is less than or equal to 50%, and the content of polyunsaturated fatty acids is less than or equal to 30%. The oil phase composition contains 0.4-2.9% of phospholipids on the basis of the total lipid mass.\nB: Disclosed are an edible antioxidant oil gel and a preparation method therefor, wherein the edible antioxidant oil gel mainly consists of the following raw materials in parts by weight: 40-60 parts of an edible vegetable oil, 5-15 parts of policosanol, 2-8 parts of a protein and 30-50 parts of water. The edible antioxidant oil gel can be used in solid or semi-solid foods instead of trans-fatty acids and saturated fatty acids.\nC: A vitamin K2 microcapsule, a preparation method therefor, and an application thereof in preparation of a medicine for preventing and treating cardiovascular and cerebrovascular diseases. The vitamin K2 microcapsule contains the following components in parts by weight: 0.001-10 parts of vitamin K2, 5-30 parts of a polyunsaturated fatty acid source, 0.1-10 parts of vitamin E polyethylene glycol succinate, 50-95 parts of a water-phase wall material, and 0.01-10 parts of an antioxidant, the polyunsaturated fatty acid source containing an ω-6 source and an ω-3 source, and the antioxidant being a water-phase antioxidant and/or an oil-phase antioxidant. The vitamin K2 microcapsule prepared by the method has good water solubility and stability and high bioavailability, can significantly improve preventive and/or therapeutic effects on cardiovascular and cerebrovascular diseases, and has broad application prospects.\nD: A pig feed capable of increasing the content of unsaturated fatty acid in pork fat. The pig feed contains microalgae with eicosapentaenoic acid, wherein the content by weight of the eicosapentaenoic acid is 0.005%-0.12%. The pig feed can effectively increase the content of unsaturated fatty acid in pork fat of pigs bred with the pig feed, especially, the content of eicosapentaenoic acid and docosahexaenoic acid in ω-3 unsaturated fatty acid.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA blood fat-reducing and blood pressure-reducing health care tea and a preparation method therefor. The health care tea is prepared by means of the following raw materials in parts by weight: sandalwood leaf 10-40, lupin leaf 10-30, moringa seed leaf 10-30, chickpea leaf 10-30, sandalwood seed 5-20, moringa seed 5-20, lupin 5-20, and chickpea 5-20. The preparation method comprises: extracting, filtering, precipitating, and re-filtering the sandalwood leaf, lupin leaf, moringa seed leaf, chickpea leaf, sandalwood seed, moringa seed, lupin, and chickpea by using water; drying a filtrate to obtain a blood fat-reducing and blood pressure-reducing health care tea.\nA: Provided are a traditional Chinese medicine lip balm having Yin nourishment and internal heat relief effects, and a method for preparation thereof, belonging to the field technical field of cosmetics. The traditional Chinese medicine lip balm of the present invention comprises the following raw materials by weight: 5–10 parts of Chinese medicinal extract, 10–20 parts of beeswax, 20–40 parts of olive oil, and 5–10 parts of vitamin E oil; said Chinese medicinal extract is prepared from the following raw materials by weight: 5–20 parts of Fructus ligustri lucidi extract, 5–20 parts of Eclipta prostrata extract, 5–20 parts of Artemisiae annuae herba extract, and 5–20 parts of honeysuckle extract. The components of the traditional Chinese medicinal lip balm of the present invention are combined in a reasonable way, exhibit a synergistic function, have a long-lasting moisturizing effect, can prolong the time of effectiveness of Chinese medicinal ingredients, promote the absorption and utilization of more Chinese medicinal ingredients by the skin of the lips, enhance the effectiveness of the Chinese medicinal ingredients on nourishing Yin and moisturizing the skin of the lips, clearing internal heat and reducing swelling, stanching blood, and protecting the lips, and have a wide range of prospects for application.\nB: A tea massage oil, a preparation method therefor and an application thereof. The tea massage oil is prepared from the following raw materials in parts by weight: 40-87 parts of ethyl-esterified tea oil, 5-15 parts of oregano oil, 2-12 parts of melaleuca alternifolia oil, 2-10 parts of pumpkin seed oil, 2-10 parts of prickly pear seed oil, 1-10 parts of passion fruit seed oil, and 1-5 parts of nano germanium oxide. The method comprises: evenly mixing the ethyl-esterified tea oil, the oregano oil, the melaleuca alternifolia oil, the pumpkin seed oil, the prickly pear seed oil, the passion fruit seed oil, and the nano germanium oxide, so as to obtain the tea massage oil. The tea massage oil can eliminate fatigue, achieve a men's health-care function, can remove scars, and achieves a far-infrared skin activating function.\nC: A healthcare tea, including the following raw material components: 7-15 parts of tangerine peel, 11-25 parts of cocculus sarmentosus, 10-32 parts of hedyotis diffusa, 5-20 of flos lonicerae, 4-12 parts of wolfberry, 5-20 parts of corn silk, and 7-30 parts of dendrobium nobile. The healthcare tea appropriately relieves chronic diseases, removes dampness and promotes diuresis, and is used to adjust a suboptimal health status in a person's body caused by dampness and heat, improve the quality of life and work, and increase happiness. The costs of the proportioned raw materials of the healthcare tea are low, for the benefit of the general population.\nD: A composition facilitating lowering of blood pressure, use of the composition in preparing a dietary supplement for facilitating lowering of blood pressure, and a dietary supplement containing the composition and a preparation method thereof. The composition comprises the following ingredients in parts by weight: 10-50 parts of a lactophorin extract; 10-30 parts of a grape seed extract; 1-20 parts of a water soluble tomato concentrate; 0.1-2 parts of folic acid; 1-10 parts of Vitamin B 6 ; 0.1-2 parts of Vitamin B 12 ; and 1-10 parts of Vitamin B 2 . The invention combines the lactophorin extract, the grape seed extract, the water soluble tomato concentrate, folic acid, Vitamin B 6 , Vitamin B 12  and Vitamin B 2 , and the combination of a plant extract composition and a vitamin composition achieves a synergy that enhances the effect of lowering blood pressure.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA tea leaf flavoring device, comprising an insulating layer, an electric heater, a machine body, a placement board, a net cover, a moisture sensor, a roller, a column, a driver, a secondary signal sensor, a slide rail, a pulley, a main control panel, a master controller, a drive key and a primary signal sensor. Tea leaves in the machine body are dried by means of the electric heater, and the pulley is controlled by means of the driver to drive the placement board to run up and down along the slide rail, thereby solving the problem of uneven heating of the tea leaves.\nA: A forestry seedling apparatus comprising three fixed side boards (9) and a movable side board (7) installed on a bottom board (14). The fixed side boards (9) are placed on the three sides of the bottom board (14) while the movable side board (7) is placed on the fourth side thereof. The movable side board (7) is attached to the fixed side boards (9) by clasps (6). A sprinkler (5) is installed inside the movable side board (7) and a water storage tank (1) is provided outside the bottom board (14). The water storage tank (1) is connected to the sprinkler (5) by pipes (3) and a pump (4) is provided on the pipes (3). A main controller (12) is installed at the bottom end of the bottom board (14). Inside the bottom board (14) is installed a moisture sensor (13) connected to the main controller (12). The main controller (12) is also connected to the pump (4), and thus moisture can be measured with the moisture sensor (13). Moisture can be timely replenished to the seedling trays by the pump (4) to ensure water resources are evenly distributed.\nB: A seed soaking apparatus, comprising: a hot water tank (9) installed at the right side of a seed soaking tank (14). A heating disc (10) is provided inside the hot water tank (9). The hot water tank (9) is connected to an inlet hole (6) by a hot water pipe (5). A hot water pump (8) is installed on the hot water pipe (5). A support (23) is provided at the bottom end of the seed soaking tank (14). A motor (7) is installed at the top end of the seed soaking tank (14) and connected to an axle (25). A mixing blade (26) is provided on the axle (25). A main control panel (18) having therein a main controller (16) is provided on the seed soaking tank (14). A temperature sensor (20) is provided in the seed soaking tank (14) and is connected to the master controller (16), and the master controller (16) is linked to the water pump (8). The temperature in the seed soaking tank (14) is measured by the temperature sensor (20). When the temperature is too high, information thereof is transmitted to the main controller (16), and the main controller (16) controls the pumping by the hot water pump (8) of hot water from the hot water tank (9) into the seed soaking tank (14), ensuring the effectiveness of seed soaking.\nC: A new sunlight simulating tea leaf drying room, comprising a drying chamber, the ceiling of the drying chamber having at least one red light, at least one orange light, at least one yellow light, at least one green light, at least one blue light, at least one cyan light, at least one purple light, at least one ultraviolet disinfection light, at least one ultraviolet heating light and at least one ceramic heating light provided thereon, the wall or the ceiling of the drying chamber having an air inlet device and a ventilator fan arranged thereon, the drying chamber having a temperature sensor, a humidity sensor and an airing table arranged therein, and one side of the drying chamber having a control box arranged thereat.\nD: A seed disinfection equipment, which primarily solves the problem wherein using methods of soaking in a liquid medicine or steaming easily deactivates seeds. A vertical column (21) is provided within an equipment body (20), a plurality of grooves (11) being provided on the column (21), while a plurality of seed holding grooves (13) are provided on a side of the column; an electrical heater (16) is provided in a seed holding groove (13), and a sponge layer (12) is provided in the seed holding tank (13), while an end of the seed holding tank (13) is provided within the groove (11) by means of a spring (18); a motor (19) is provided at a bottom portion of the groove (11), the motor being connected to the spring (18); a blower (3) is provided within the equipment body (20), while a medicine storage tank (1) is provided at an upper end of the equipment body (20), and a guide rail (5) is provided within the equipment body (20); a sprinkler (6) is provided on the guide rail (5), the sprinkler (6) being connected to the medicine storage tank (1) by means of a pipe (2), while a pump (22) is provided on the pipe (2), and the sprinkler (6) is connected to the guide rail (5) by means of a pulley (4). The sprinkler (6) drives forward and backward movement by means of the pulley (4) and seeds within the seed holding tank (13) may be driven, by means of the spring, to be disinfected, which may thus improve disinfection quality.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA healthcare tea, including the following raw material components: 7-15 parts of tangerine peel, 11-25 parts of cocculus sarmentosus, 10-32 parts of hedyotis diffusa, 5-20 of flos lonicerae, 4-12 parts of wolfberry, 5-20 parts of corn silk, and 7-30 parts of dendrobium nobile. The healthcare tea appropriately relieves chronic diseases, removes dampness and promotes diuresis, and is used to adjust a suboptimal health status in a person's body caused by dampness and heat, improve the quality of life and work, and increase happiness. The costs of the proportioned raw materials of the healthcare tea are low, for the benefit of the general population.\nA: An Enteromorpha prolifera polysaccharide composite blood lipid-lowering health care product. The health care product is a capsule or a tablet or a granule, and consists of the following raw materials: 50-70 parts of an Enteromorpha prolifera polysaccharide extract, 10-15 parts of a Puerariae radix extract, 5-10 parts of a Gynostemma pentaphylla extract, 5-10 parts of a hawthorn extract and 10-15 parts of a Monacolin-R, the parts of each raw material being all in parts by weight. Further provided is a preparation method for the health care product. The raw materials are mixed in the parts by weight mentioned above, shaped, dried, packaged and inspected to obtain a final product.\nB: Disclosed are a traditional Chinese medicine composition for treating deficiency of both qi and blood, a preparation method therefor and a use thereof. The composition comprises, in parts by weight, 25-35 parts of Astragali radix or an extract thereof, 5-7 parts of Angelicae sinensis radix or an extract thereof, 8-12 parts of Jujubae fructus or an extract thereof, 5-10 parts of Chinese wolfberry or an extract thereof, and 5-8 parts of Citri reticulatae pericarpium or an extract thereof. The raw material components can be processed, extracted, concentrated and mixed with excipients to prepare an ointment or granule preparation of the traditional Chinese medicine composition, wherein same can be used in the preparation of a drug or health-care product for the treating deficiency of both qi and blood. The whole prescription has the effects of nourishing the liver and kidney, strengthening the spleen and regulating qi, invigorating defensive qi to strengthen the protective functions of the body, and strengthening and consolidating body resistance, thereby enhancing the immune function of the body. Same is mainly suitable for people with low immune function caused by high work pressure, excessive fatigue, deficiency of qi and blood after childbirth, and cancer after radiotherapy and chemotherapy.\nC: A soup for treating insomnia and dysphoria is prepared from the following main raw materials in proportion by weight: 5-10 parts of  Ziziphus jujube , 4-9 parts of  Commelina hengalensis L. , 10-20 parts of  Hericium erinaceum , 10-20 parts of  Setaria italica , 5-15 parts of apple, 7-13 parts of  Dioscorea polystachya , 4-10 parts of  Apocynum venetum , 5-10 parts of  Fructus Lycii , 3-7 parts of  Benincasa hispida , 2-4 parts of pollen, 5-10 parts of  Radix Astragali , 3-8 parts of lotus seeds, and 5-15 parts of  Fructus Mori . The medicinal materials above are easily available, low in costs, and mild.\nD: Disclosed is a heart-nourishing and health-preserving tea, prepared from the following raw materials in parts by weight: 0.5-1.5 parts of Cordyceps sinensis, 1.5-2.5 parts of Radix Ginseng, 0.5-1.5 parts of tall gastrodia tuber, 1.5-2.5 parts of Radix Salviae Miltiorrhizae, 0.5-1.5 parts of saffron, 2.5-3.5 parts of debark peony root, 3.5-4.5 parts of notoginseng bud, 1.5-2.5 parts of liquorice root, 1-2 parts of dendrobium, 1.5-2.5 parts of peppermint, 0.5-1.5 parts of pagodatree flower bud, 1.5-2.5 parts of Fructus Swietenia Macrophylla, 3-5 parts of Chrysanthemum morifolium, 2-4 parts of glossy ganoderma, 2.5-3.5 parts of Rhodiola rosea, 1.5-2.5 parts of root bark of tree peony, 3-5 parts of barbary wolfberry fruit, 1.5-2.5 parts of Sichuan lovage rhizome, 1.5-2.5 parts of dried tangerine peel, 1.5-2.5 parts of poria peel, 3.5-4.5 parts of milkvetch root, 2-4 parts of Chinese dates, 1.5-2.5 parts of Amomum villosum, 0.1-1.5 parts of Rhizoma zingiberis, and 2-4 parts of the fruits of Morinda citrifolia L. Each component is respectively prepared and processed into powder particles, and is then mixed and packaged into tea bags.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn integrated rolling and sieving machine based on gravity sensing for automated tea leaf processing. The machine comprises a frame, a rolling device, a sieving device, and a PLC controller. The rolling device comprises a rolling table, several rolling blades, a first motor, a pressure adjustment spring, and an adjustable nut. The rolling blades are sleeved on a main shaft of the first motor. The rolling table is fixedly arranged on the frame by means of several support plates. The sieving device comprises a second motor, a pair of crank drive mechanisms, a screen, a sleeve, and an electric cylinder. One end of the screen is connected to and driven by the second motor, the other end of the screen is connected to one end of the electric cylinder, and the other end of the electric cylinder is hinged to the frame.\nA: An integrated feeding and cutting device for regular long strip-shaped materials, comprising a feeding module, a middle transport module, a cutting module, and a discharging module. The feeding module comprises a material storage belt (1) and a feeding drive mechanism, wherein the end of the material storage belt (1) close to the middle transport module runs around a first support point (b) and then is fixed on a frame (2), the other end runs around a second support point (c) and then is fixedly connected to the feeding drive mechanism, the second support point (c) is higher than the first support point (b), and a material (a) is placed on a material storage portion of the material storage belt (1); the feeding drive mechanism comprises a feeding drive motor (3) and an auxiliary transmission swing arm (4), the bottom end of the auxiliary transmission swing arm (4) is hinged to the frame (2), and the top end is fixedly connected to the material storage belt (1); and the feeding drive motor (3) drives the auxiliary transmission swing arm (4) to rotate. The cutting module comprises a cutting machine (5) and a clamping mechanism. The integrated feeding and cutting device can achieve fully automatic feeding, transport, cutting, and discharging operations, reduce the labor intensity for workers, and improve production efficiency.\nB: A turnover machine for overhauling bearings, comprising a rack (1). The bottom of the rack (1) is provided with wheels (2). The rack (1) is further provided with a first turnover plate (3) and a second turnover plate (4) separately. One end of the first turnover plate (3) and one end of the second turnover plate (4) are both hingedly connected to the rack (1) by means of pin shafts (5.1, 5.2). A first turnover cylinder (601) and a second turnover cylinder (6.2A) are further provided inside the rack (1). The bottom of the other end of the first turnover plate (3) is hingedly connected to an end of a piston rod in the first turnover cylinder (6.1A), and the bottom of the other end of the second turnover plate (4) is hingedly connected to an end of a piston rod in the second turnover cylinder (6.2A). The rack (1) is further provided with conveying rollers (7, 8). The back of the second turnover plate (4) is provided with a support frame (9). A clamping cylinder (10) is provided in the support frame (9). A chuck (11) is further provided in the second turnover plate (4). An end of a piston rod in the clamping cylinder (10) is fixedly connected to the back of the chuck (11), and the front of the chuck (11) is provided a claw (12) and further provided with a guide rail (18). Two sides of the back of the claw (12) are slidably connected to the guide rail (18), and the back is further provided with a lead screw (15). The middle of the back of the claw (12) is fixedly connected to a nut seat sleeved on the lead screw (15). The turnover machine has a variety of turnover angles, can meet the processing requirements of different processes of bearings, can more conveniently and stably fix the bearings, and is less likely to scratch the surfaces of the bearings.\nC: Disclosed is a rotary rolling machine, comprising: a base; a material tank; a first driving device; a rotation mechanism; a second driving device; and a rolling cylinder. The rolling cylinder is eccentrically provided inside the material tank. The second driving device is connected to the rolling cylinder, and drives the rolling cylinder to perform eccentric movement about an axis of the material tank. The first driving device is connected to the rotation mechanism. The rotation mechanism is connected to the material tank. The material tank is provided above the base. The first driving device drives, by means of the rotation mechanism, the material tank to perform reciprocating rotation about a horizontal axis I. The apparatus solves the problem in the art of poor rolling performance and efficiency resulting from an unvaried rolling motion performed by a small rolling disc employed in a mechanical rolling process.\nD: A glue dispensing device for electronic component production, the device comprising a rack (1). A glue material mixing and impurity filtering device (2) is mounted at the top of the rack. A glue dispensing head (3) is mounted at the lower end of the glue material mixing and impurity filtering device. A supporting plate (9) is arranged on the lower portion of an inner side of the rack. A plurality of telescopic cylinders (10) are mounted on the lower side of the supporting plate. The lower ends of the telescopic cylinders are fixed to the rack. A Y-axis moving mechanism (11) is mounted on the upper side of the supporting plate. An X-axis moving mechanism (8) is mounted on the upper side of the Y-axis moving mechanism. A rotating electric motor (7) is mounted on the upper side of the X-axis moving mechanism. A rotating disc (6) is mounted at the end of an output shaft of the rotating electric motor. Fixing clamps (4) are mounted on the upper side of the rotating disc. A plurality of air suction heads (5) are circumferentially distributed and mounted on an outer side of the rotating disc and are in communication with an air suction hose (12). The other end of the air suction hose is connected to an air suction filtering device (13) mounted on the rack. The glue dispensing device can improve material mixing and impurity filtering effects, has a wide application range, can improve the environmental quality of a working area, and is beneficial to the health of workers.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA composite modification of mung bean protein and a preparation method for mung bean protein-based simulated egg liquid. Modified mung bean protein isolate is prepared by using mung bean protein isolate as a raw material and by passing through pH offset modification, ultrasonic processing and protein glutaminase (PG enzyme) processing for composite modification. In addition, the modified mung bean protein isolate is used as a raw material; edible vegetable oil, edible calcium chloride, edible polysaccharide, a TG enzyme and water are added; and then high-speed emulsification and high-pressure homogenization are carried out, so as to obtain a high-stability mung bean protein-based simulated egg liquid.\nA: A method for preparing peanut modified protein with enzyme, comprises adding low-modified defatted peanut protein into distilled water, dispersing and dissolving the product with microwave, adjusting pH value of the protein suspension, and extracting the product using alkali with microwave, centrifuging the product, ultra-filtrating the supernatant, adjusting pH value of the concentrate, adding protease to the product and performing enzymatic process with microwave, enzyme inactivation and concentrating the product by ultra-filtration separation, and freeze-drying the concentrate and obtaining the peanut modified protein with enzyme.\nB: A peanut protein vegetarian sausage and a preparation method therefor, the vegetarian sausage is made from components comprising the following ingredients according to parts by weight: 50-100 parts of low-temperature degreased peanut protein powder, 5-50 parts of soybean protein isolate, 5-50 parts of vital wheat gluten, and 0.1-10 parts of a modifying agent. The preparation method for the vegetarian sausage comprises: after being fully mixed, the main ingredients are extruded at a temperature of 100-200℃; during extrusion, adding water and auxiliary ingredients on-line; and cooling the same after extrusion molding; during extrusion, the water content of the materials is 45%-75%.\nC: Provided is a preparation method for an oligopeptide perilla seed oil microcapsule, comprising the steps: (1) adding 50-150 parts of modified starch, 50-150 parts of soybean polysaccharide, 50-150 parts of gum arabic, 50-150 parts of sodium caseinate, and 50-150 parts of soybean protein isolate into hot water, and stirring and dissolving to form a first aqueous phase; (2) adding 5-50 parts of oligopeptide into the first aqueous phase, and stirring and dissolving to obtain a second aqueous phase; (3) shearing the second aqueous phase, and adding 50-750 parts of perilla seed oil to obtain an emulsion; (4) homogenizing the emulsion; (5) spray drying the homogenized emulsion in step (4) to obtain the oligopeptide perilla seed oil microcapsule. The oligopeptide perilla seed oil microcapsule prepared by the method has good encapsulation efficiency and lower surface oil rate; wrapping oil in a wall material can prevent active ingredients in the oil from being oxidized, thereby prolonging the storage time.\nD: Disclosed are a polypeptide nutrition powder and a preparation method therefor. The nutrition powder is a nutritional food product composed of a soybean isolate protein, soybean peptide powder, whey protein powder, collagen peptide powder, ocean fish oligopeptide powder, wheat peptide, vegetable fat powder (glucose syrup, hydrogenated vegetable oil, casein, dipotassium phosphate, mono-, diglycerol fatty acid ester and silica), maltodextrin, whole milk powder, zinc gluconate, calcium hydrogen phosphate, magnesium carbonate, iron pyrophosphate, vitamin acetate A, vitamin D3, dl-α-tocopherol acetate, thiamine hydrochloride, riboflavin, pyridoxine hydrochloride, cyanocobalamin, L-ascorbic acid, nicotinic acid, folic acid, D-calcium pantothenate, xanthan gum, aspartame (containing phenylalanine) and edible flavor. The nutrition powder can quickly supplement protein nutrients suitable for the human body, strengthen body constitution, generate immune antibodies, and enhance the ability of resisting invasion of foreign bacteria and viruses on the human body of a patient. The nutrition powder is particularly suitable for people with poor immunity; people with poor gastrointestinal function; people recovering from serious illness and subjected to convalescence after operation; people with high work intensity or pressure and need to relieve fatigue; and athletes and soldiers in the army needing to recover physical strength quickly.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nRice flour for infants, and a method for preparing same. The rice flour for infants is prepared by means of the following ratios of raw materials by weight: 70 g-90 g of rice, 5 g-10 g of soybean oil, 10 g-15 g of yolk powder, 12 g-16 g of fruit extracts, and 3 g-5 g of dehydrated tomato powder. The method comprises: cleaning raw material rice and removing impurities from same, and then grinding the raw material rice into powder; after grinding, sieving and filtering the powder by means of an 80-mesh sieve; weighing the powder after a night; blending the powder with other ingredients according to a certain ratio until uniform; adding an appropriate amount of water, and then performing sieving by means of a 60-mesh sieve; after natural cooling, cutting the cooled material into strips and grinding same; then, adding auxiliary materials and blending same with the grinded material; and performing sieving and then packaging same. Organic rice is selected as the main raw material, and appropriate amounts of yolk powder, vegetable oil and fruit extracts are added so as to meet functional ratios of fat and vitamins of infants, thereby improving the food safety and nutrition of the rice flour for infants.\nA: A whole-process nitrogen-mediated infant complementary food nutrition package and a preparation method therefor, relating to the technical field of creation of high-quality infant complementary food nutrition packages. The present invention particularly relates to a nutrition package production key technology which comprises vibration and sieving of main materials under whole-process nitrogen mediation, three-stage pneumatic balanced mixing of "nitrogen deoxygenation primary mixing, low-temperature pneumatic uniform mixing, and nitrogen deoxygenation and gas uniform mixing", double quantitative precise filling, and heat fusion quick sealing and cooling quick breaking. The attenuation rates of vitamin A acetate and cholecalciferol and a scanning electron microscope (SEM) map are used as important measurement indexes for the quality of an infant complementary food nutrition package, and a storage acceleration test for 60 days confirms that the quality deterioration rate of the infant complementary food nutrition package produced under whole-process nitrogen mediation is remarkably lower than a quality deterioration rate of a control group (P<=0.05), and thus, an important research idea is provided for promoting the innovation and development of high-quality nutrition package industry.\nB: An infant formula milk powder rich in structured lipid OPL, and a preparation method therefor. The infant formula milk powder rich in structured lipid OPL is prepared by means of taking raw cow milk as the main raw material, adding a mixed grease rich in structured lipid OPL and other ingredients and performing adjustment, wherein the mixed grease rich in structured lipid OPL is prepared by means of blending structured lipid OPL and mixed vegetable oil, the mass fraction of the structured lipid OPL being 54%-58% and the content of palmitic acid at position sn-2 being more than 80%, and the structured lipid OPL accounts for 6%-15% by mass of triglyceride in the milk powder. The infant formula milk powder is processed by means of a wet method, and is obtained by means of using raw cow milk as raw material milk, performing pre-sterilizing after purifying the milk, adding a mixed grease rich in structured lipid OPL and other ingredients into the pre-sterilized raw cow milk, sequentially performing homogenizing and sterilizing, and performing concentrating and spray drying.\nC: A manufacturing method of whole grain rice noodles comprises: step 1, preparing 30-45 parts of brown rice, and using a 50-70 mesh sieve to perform filtering; step 2, mechanically removing hull from the filtered brown rice obtained in step 1, and obtaining white rice and bran; step 3, placing the bran obtained in step 2 in a dry storage container, storing same at 4 Celsius degrees, and independently storing the white rice obtained in step 2; step 4, washing the white rice obtained in step 3, and soaking same for four hours; step 5, simultaneously grinding and mixing the rice soaked in step 4 and the bran stored in step 3, and obtaining rice milk; step 6, adding an additive to the rice milk obtained in step 5 according to a ratio, and uniformly stirring same to obtain a rice milk mixture; step 7, steaming the rice milk mixture obtained in step 6; and step 8, cutting and shaping. The rice noodles manufactured by the method contain nutrients of whole grains and have mouth feel characteristics and texture similar to normal rice noodles.\nD: A milk-based liquid infant formula containing active proteins, preparation method therefor, and a use of the preparation method. Fresh milk is used as a main raw material. According to requirements of the national standard and the standard of breastmilk, the proportions of the protein, fat, and carbohydrate in the milk are regulated; a vitamin and a mineral substance are added; and by means of the comparison of the effects of different heat treatment processes on active proteins in the milk, which mainly comprise immunoglobulins, lactoferrins, and low-abundance proteins in milk serum, the pasteurization method is finally used to sterilize the milk, such that a pasteurized milk-based liquid infant formula having active proteins is developed.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA frying apparatus for use in the production of nuts mixed with a jujube paste, the frying apparatus comprising a stirring-and-frying box (1), wherein a main material feeding hopper (2) is welded at one end of an upper surface of the stirring-and-frying box (1) in a penetrating manner, and an auxiliary material feeding hopper (4) is mounted at the other end of the upper surface of the stirring-and-frying box (1); a gas filtering structure (3) is mounted on an upper surface of the main material feeding hopper (2); a mounting plate (5) is welded onto a lower surface of the stirring-and-frying box; a first sieve box (6) is welded onto a lower surface of the mounting plate (5); a second sieve box (7) is welded onto a lower surface of the first sieve box; a support spring (10) is welded onto a lower surface of the second sieve box; a support plate (9) is welded onto a lower surface of the support spring (10); a material turning motor (16) is mounted on an outer surface of a side of the stirring-and-frying box (1); and a material turning plate (17) is mounted inside the stirring-and-frying box (1) in a position corresponding to the material turning motor.\nA: An environmentally friendly and energy-saving frying pan (1) for use in aviation food. The frying pan (1) is comprised; a long frying-pan handle (3) is mounted at one end of the frying pan (1), and a short frying-pan handle (4) is mounted at the other end of the frying pan (1); a lower surface of the frying pan (1) is provided with a heat conducting plate (5); a fire dividing plate (6) is welded onto an outer surface of the frying pan (1); a baffle plate (7) is mounted at an upper end of the outer surface of the frying pan (1); a pan cover (2) is placed on an upper surface of the frying pan (1); an oil fume-and-steam filtering member (8) is mounted on an upper surface of the pan cover (2); a steam pipe (9) is welded on an outer surface of a side of the oil fume-and-steam filtering member (8) in a penetrating manner; a cover handle (10) is mounted on an upper surface of the oil fume-and-steam filtering member (8); a clamping ring (11) is arranged on a lower surface of the pan cover (2); and a water outlet (12) is welded at a lower end of a front surface of the oil fume-and-steam filtering member (8) in a penetrating manner. The baffle plate (7) is arranged, and the function of removing oil fumes is provided, such that oil fumes generated during the process of frying food are filtered. In addition, a steam-and-liquefied water collecting structure is provided.\nB: A melting device for macromolecule membrane production, comprising a melting furnace body (1); a fixing chassis (2) is fixedly mounted to a lower surface of the melting furnace body (1); a control electric box (4) is fixedly mounted to a lower surface of the fixing chassis (2); a heating electric plate (5) is fixedly mounted to an inner surface of the melting furnace body (1); a motor fixing frame (6) is fixedly mounted to an outer surface of one side of the melting furnace body (1); a rotary motor (7) is fixedly mounted to an upper surface of the motor fixing frame (6); a motor rotary shaft rod (8) is rotatingly mounted to an outer surface of one side of the rotary motor (7); and a fixing disc (9) is fixedly mounted to an outer surface of one end of the motor rotary shaft rod (8). When a material is being heated and melted, the melting device can turn over and stir the material, such that the material is evenly heated, thus improving melting efficiency; in addition, high-temperature heat inside of the device can be rapidly discharged after the material has been heated and melted, thus preventing the heat from impacting an operator.\nC: Disclosed is a chestnut stir-frying device capable of achieving uniform distribution of sands, comprising a stir-frying housing (1), a stirring shaft (2) being provided inside the stir-frying housing (1), the stirring shaft (2) being driven to rotate by means of a stirring motor (3) provided outside the stir-frying housing (1), and a plurality of stirring blades (4) being provided on the stirring shaft (2); the stirring shaft (2) has a hollow structure, the upper side and the lower side of the stirring shaft (2) are respectively provided with a first port (5) and a second port (6) which are connected to the outside of the stirring shaft through the inside thereof, a sorption pump (7) is provided on the upper end of the stirring shaft (2), and is connected to the inside of the stirring shaft (2) by means of a sorption pipe (8), and a filter screen is provided in the sorption pipe (8); the described chestnut stir-frying device capable of achieving uniform distribution of sands may form a circulation uniform distribution of the sands in the height direction during the chestnut stir-frying, so that the chestnuts are always kept under the coverage of the sands by the described uniform distribution of the sands, thereby improving the heating effect during the chestnut stir-frying.\nD: A micro-reagent mixing and adding device, comprising a container housing (1), a sample loading bin (5), and a liquid discharge nozzle (13). A mixing rod (2) is mounted inside the container housing (1), and a stirring fan blade (4) is fixed on a side surface of the mixing rod (2). The sample loading bin (5) is mounted on a side surface of the container housing (1). A rotating shaft (7) is provided on a side surface of the sample loading bin (5). A blocking plate (8) is fixed on a side surface of the rotating shaft (7). A liquid discharge bin (9) is mounted and fixed on a lower end surface of the sample loading bin (5). A connecting rod (10) is movably connected inside the liquid discharge bin (9). A rotating handle (11) is connected to a lower end surface of the connecting rod (10). An inner plate (14) is provided under the stirring fan blade (4). The liquid discharge nozzle (13) is mounted on a right side of the inner plate (14), and a plugging pile (12) penetrates through the interior of the liquid discharge nozzle (13). A spring (16) is fixed on an outer surface of the container housing (1), and a plugging plate (15) is fixed on a side end surface of the spring (16). The micro-reagent mixing and adding device can simultaneously mix a plurality of solution groups in a sealed manner so as to avoid external bacterial interference, and uses manual stirring to improve solution mixing efficiency.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for preparing instant rice noodles using fresh potatoes. The used raw materials are: fresh potatoes: 35-60%; and soaked and drained rice: 40-65%. The method comprises the following steps: (1) soaking and draining rice and then grinding same into flour, and steaming part of the flour as rice paste; (2) washing and peeling potatoes, then dividing same into two parts, grinding one part into potato slurry, and steaming and mashing the other part into potato mash; (3) mixing the components above; (4) preparing the mixture into prime-pressed rice noodles and repeating pressing same into long thin pieces to form semi-finished rice noodles; (5) placing the semi-finished rice noodles into a fully-hermetic baking room for baking; (6) introducing steam into the baking room for 10-15 minutes; (7) shaping the rice noodles; (8) drying the rice noodles at a low temperature; and (9) packaging the rice noodles. The method can improve the strength of rice noodles, decrease the breaking rate, and extend the shelf life.\nA: A manufacturing method of whole grain rice noodles comprises: step 1, preparing 30-45 parts of brown rice, and using a 50-70 mesh sieve to perform filtering; step 2, mechanically removing hull from the filtered brown rice obtained in step 1, and obtaining white rice and bran; step 3, placing the bran obtained in step 2 in a dry storage container, storing same at 4 Celsius degrees, and independently storing the white rice obtained in step 2; step 4, washing the white rice obtained in step 3, and soaking same for four hours; step 5, simultaneously grinding and mixing the rice soaked in step 4 and the bran stored in step 3, and obtaining rice milk; step 6, adding an additive to the rice milk obtained in step 5 according to a ratio, and uniformly stirring same to obtain a rice milk mixture; step 7, steaming the rice milk mixture obtained in step 6; and step 8, cutting and shaping. The rice noodles manufactured by the method contain nutrients of whole grains and have mouth feel characteristics and texture similar to normal rice noodles.\nB: A bean curd and dried bean curd made from potatoes, and a processing method therefor. The bean curd comprises the following separate coagulants in parts by weight: 50-250 parts of raw potato; 250 parts of dry soy bean; and 3-20 parts of stewing spice. The dried bean curd is made of small pieces of semi-finished bean curd by means of stewing brine. The processing method for the bean curd comprises: soaking the dry soy beans with water to obtain swelled soy beans; dicing the raw potatoes; soaking a mixture of the qualified swelled soy beans and qualified diced raw potatoes; pulping; filtering; boiling; adding a stewing spice; coagulation of the pulp after the stewing spice is added; water filtering; shaping; and steps the like. The processing method for the dried bean curd comprises: preparing and boiling the stewing brine; stewing the small pieces of semi-finished bean curd in the stewing brine; drying the finished products; and steps the like.\nC: Disclosed is a staple food, the raw materials of which comprise peeled chestnut flour, almond flour, peanut flour, walnut meat powder, millet flour, sorghum flour, barley flour, purple rice flour, buckwheat flour, soybean flour, red bean flour, mung bean flour, adlay seed powder, black beans powder, black rice flour, rye flour, starch power, yam powder, potato flour, wheat flour mixed with raw material in corn meal, or any combination of the above raw materials, or then adding other raw materials to the above raw materials, such as sweeteners, sugars and green food additives.\nD: Disclosed is a self-compatibility method for potatoes. The method comprises the following steps: (1) selecting a self-compatible material of potatoes and referring to same as PG6359, and cloning the S-RNase gene of PG6359 through the transcriptomic sequencing method; and (2) obtaining two S-RNase gene full-length sequences from the cloned S-RNase gene in step (1) and referring to same as S s11  and S s12 , respectively, and after carrying out an artificial self-pollination for the material PG6359, selecting the material having the genotype of S s11 S s11  from the offspring as the female parent and referring to same as material A, and selecting a self-incompatible material as the male parent and referring to same as material B, and then obtaining a self-compatible F 1  generation by means of hybridization. The advantage of the present invention lies in enabling diploid potatoes to be self-compatible. The present invention does not require the introduction of any wild potato fragment, thus avoids linkage drag, and provides a basis for the rapid creation of a diploid inbred line.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nSocks and a manufacturing method therefor, comprising an inner layer sock body and an outer layer sock body; the outer layer sock body extends along the length of the foot, the inner layer sock body being arranged on the inner side of the outer layer sock body; the inner layer sock body comprises a toe sleeve part used for wrapping and sleeving the toes and a connecting part for connecting the toe sleeve part and the outer layer sock body; the toe sleeve part is composed of at least two toe sleeves arranged in parallel, the toe sleeve extending along the length of the toe, and one end of the toe sleeve being connected to the connecting part. Also disclosed is a manufacturing method for manufacturing the present five-toed sock. The advantages of the present invention are solving the problem that feet easily grow fungus due to poor breathability, and having the same appearance as an ordinary sock.\nA: Disclosed are stockings for preventing and correcting hallux valgus, comprising a stocking leg portion, a stocking opening, and a toe portion; the toe portion is at least provided with a first toe for the hallux to wear; when the stocking is worn on the foot, the first toe is located on the inner side of the foot; when the stockings are worn on the foot, at least one longitudinal elastic yarn or band stretching from the tip of the first toe toward the foot arch is disposed on the first toe and a part of the stocking leg portion on the inner side of the foot; the elastic yarn or band is in a T-shape connection with a transverse elastic band stretching from the center of the joint of the hallux-connecting metatarsus toward the foot arch. The present invention can dispel concern about wearing high-heeled shoes and pointed shoes, can effectively prevent hallux valgus, correct moderate hallux valgus, stop severe hallux valgus from continuous worsening so as to stabilize the condition, and gradually improve hallux valgus with long-term use.\nB: A foot state monitoring method, comprising: at each preset collection time point, controlling a temperature sensor at a sock body of a first sock to collect a first temperature sequence, and synchronously controlling a temperature sensor at a sock body of a second sock to collect a second temperature sequence, human foot positions respectively corresponding to the temperature sensor at the sock body of the first sock and the temperature sensor at the sock body of the second sock being in mirror symmetry; parsing the first temperature sequence and the second temperature sequence to determine abnormal temperature values therefrom; replacing each of the abnormal temperature values with a foot temperature predication value corresponding thereto to obtain a processed first temperature sequence and a processed second temperature sequence, the foot temperature prediction value indicating a foot temperature value expected to be collected by the temperature sensor that collects the abnormal temperature value at a state of contacting human foot skin; and in the processed first temperature sequence and the processed second temperature sequence, if the temperature values corresponding to the same collection time point simultaneously meet a preset condition, sending foot state early warning information, the foot state early warning information comprising treatment prompt information and hearth care guide information.\nC: A multi-section finger sleeve-type probe comprising a finger sleeve body (11), a flexible flat cable (13) mounted on the finger sleeve body (11), a light-emitting transistor (15), a receiver transistor (17), and a lead (19) electrically connected to the soft cable (13). The finger sleeve body (11) is a cylinder opened at the lower extremity thereof. Compared with an existing finger sleeve-type probe in which wiring pipes are provided on both the left and right sides of a silicone sleeve and thus flattening same, the finger sleeve body (11) fits the shape of a finger and fully wraps around the finger; when in use, the finger is inserted into the finger sleeve body (11) and expands the periphery thereof, thus wrapping same around the finger; this provides a large resistance, is stable when worn, is not prone to falling off, and is suitable for prolonged use. Also, the finger sleeve body (11) comprises from the top to bottom a first knuckle sleeve (111) and a second knuckle sleeve (112) respectively corresponding to the distal knuckle and the medial knuckle of the finger, thus allowing the two knuckles of the finger to be fixed, thereby further increasing the stability of the finger sleeve-type probe when worn.\nD: Provided is an artificial blood vessel. The artificial blood vessel comprises an outer-layer blood vessel (1), wherein an inner-layer blood vessel (2) is nested in the outer-layer blood vessel (1), and a joint (3) connected to the inner-layer blood vessel (2) is provided on an inner wall of the outer-layer blood vessel (1), and the joint (3) is connected to one end or the middle of the inner-layer blood vessel (2). By nesting the inner-layer blood vessel (2), connected to the inner wall of the outer-layer blood vessel, in the outer-layer blood vessel (1), the outer-layer blood vessel (1) is connected when the artificial blood vessel is connected, and the length of the inner-layer blood vessel (2) is greater than that of the outer-layer blood vessel (1) for anastomosis, that is, the length of the inner-layer blood vessel (2) exceeds that of an anastomotic stoma. When blood flows through the inner-layer blood vessel (2), the blood flow pressure enables the inner-layer blood vessel (2) to be attached to the anastomotic stoma, so that the anastomotic stoma and suture stitches can be closed, isolated and pressed, thereby achieving the effect of preventing the anastomotic stoma and the suture stitches from bleeding, and making the artificial blood vessel safer and more convenient to use.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to everyday clothing, and particularly relates to underpants and shorts. Provided in the present invention are underpants having a front opening. The underpants comprise a main body formed by means of sewn cloth and are characterized by: a gap is provided along an uppermost waist circumferential portion thereof, in the form of an opening or a breach. The two sides of the gap are each fixed with a fastening member. The fastening member comprises a connection means having a connection function, such as a snap-fit fastener, a button and a buttonhole, a hook, a hook-and-loop fastener, a fabric button, a drawstring buckle, a string, or an elastic band or cloth band. In addition, cloth at the opening or breach location is partially detached from and has a gap with respect to the waistline, and a curved shape is created thereon close to the waistline. When the underpants are worn, the gap exposes the skin to achieve an aesthetic effect. Alternatively, holes can be formed in the cloth without restriction on the location and number of holes.\nA: A water-sensitive garment piece, a preparation process therefor, and a smart wearable monitoring garment. The water-sensitive garment piece is prepared using a water-sensitive shape memory polymer, and has a two-way shape memory function. The water-sensitive garment piece shrinks upon contact with water, causing the wearable monitoring garment to become tight, and therefore in a shrunken state when wet and a stretched state when dry. The water-sensitive garment piece thus converts between being tight and loose as the environmental humidity changes. The wearable monitoring garment prepared from the water-sensitive garment piece is used for body physiological signal collection, and prevents bodily discomfort caused by tight wearing for a long time. When a loose fit is required, a user enters a dry environment, and the wearable monitoring garment rapidly changes to a loose state, and when body physiological signal monitoring is required, the user need only spray a wet mist on the fabric or move to produce sweat, so that the fabric shrinks, and the wearable monitoring garment is tight and thereby collects body physiological signals.\nB: A down jacket provided with a detachable vest, which relates to the technical field of down jackets, comprising a jacket (1) and a vest (3), wherein the vest (3) is draped on a middle position of the outer side of the jacket (1), first sleeves (107) are sewn on left and right sides of the jacket (1), and the tail ends of the inner walls of the first sleeves (107) is attached to first adhesive patch rings (110); the tail ends of the outer walls of the first sleeves (107) are fixed to elastic bands (108), and the tail ends of the inner walls of the elastic bands (108) are fixed to protrusions (109); second sleeves (2) are detachably connected below the two first sleeves (107), and the the ends of the second sleeves (2) close to the first sleeves (107) are fixed to second adhesive patch rings (203); round groove blocks (202) are fixed above the outer side of the second sleeves (2), and the tail ends of the second sleeves (2) are provided with cuffs (201); and first velcro tape (102) is sewn on left and right sides of the upper part of the jacket (1), and a second velcro tape (103) is sewn below the outer surface of the jacket (1). The sleeves may be removed separately, which is convenient for separate cleaning, avoids the trouble of cleaning the entire piece, and improves the cleaning efficiency.\nC: Provided is a cutting processing method for a seam allowance of an overcoat. The method comprises the following steps: (1) cutting: flattening fabric in a yarn direction and then cutting same according to a structural board, and adjusting the magnitude of a slope; (2) drawing, and sticking a panel strip: laying the structural board on a front piece of the fabric, drawing a net line according to the structural board, and sticking, to the net line, a 6-degree bias or a 12-degree bias panel strip for fixation; (3) sewing: lifting the front piece and a facing to check that the shapes and sizes of the two pieces are complementary, and then sewing a seam allowance according to the position of the net line on the front piece; and (4) ironing. The method makes a breakthrough in the current conventional practices in terms of pattern-making. A seam allowance slopes according to the texture of the fabric, such that after being sewed together with the facing, the seam allowance can match the fabric slackness of a cut piece, wherein the slope is 0.5-2.5 degrees. During sewing, the 6-degree bias or the 12-degree bias panel strip is stuck for fixation, such that the seam allowance is slack after being sewed, and the completed seam allowance is both straight and beautiful. At the same time, a new employee can also complete a sewing operation, thereby greatly improving the production efficiency and reducing the problem of a low sewing rate.\nD: An underwear improvement structure, comprising: a front piece (11) and rear piece (12) forming an underwear body (10). An entry opening (13) for wearing is provided at a top portion of the underwear body (1). Hose-shaped exit openings (15) are respectively provided at two sides of a bottom portion of the underwear body (1). The edge of the entry opening (13) is provided with an elastic band (14). The front piece (11) is provided with an upper curved bag (16) protruding slightly forward at a position corresponding to male genitalia. A lower pocket (17) with a cleft shape is connected to the bottom of a lower edge of the upper curved bag (16). An upper elastic band surface (18), with V-shaped elastic knitting, extends from a bottom edge of the upper curved bag (16) to a bottom edge of the elastic band (14) at the entry opening (13) at the top portion of the front piece (11), thereby forming a suspended connection. A lower elastic band surface (19), with U-shaped elastic knitting and a larger curvature, extends from two sides of the lower pocket (17) to connecting side edges of the rear piece (12).When the underwear is properly worn, the underwear completely accommodates and covers an external, visible portion of the genitalia, and provides an elastic support by means of the curve-shaped upper and lower elastic surfaces (18,19) on two sides of the upper curved bag (16) and lower pocket (17).When moving, the underwear provides adequate massaging support to a relevant organ or a proximal acupoint, allowing a male user to receive complete form-fitting comfort and achieve the usage performance goals of healthiness, practicality, and safety.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are stockings for preventing and correcting hallux valgus, comprising a stocking leg portion, a stocking opening, and a toe portion; the toe portion is at least provided with a first toe for the hallux to wear; when the stocking is worn on the foot, the first toe is located on the inner side of the foot; when the stockings are worn on the foot, at least one longitudinal elastic yarn or band stretching from the tip of the first toe toward the foot arch is disposed on the first toe and a part of the stocking leg portion on the inner side of the foot; the elastic yarn or band is in a T-shape connection with a transverse elastic band stretching from the center of the joint of the hallux-connecting metatarsus toward the foot arch. The present invention can dispel concern about wearing high-heeled shoes and pointed shoes, can effectively prevent hallux valgus, correct moderate hallux valgus, stop severe hallux valgus from continuous worsening so as to stabilize the condition, and gradually improve hallux valgus with long-term use.\nA: A running shoe sole system and a running shoe. The running shoe sole system comprises a sole body; the sole body comprises a midsole (1) for being in contact with a sole of a runner, and an outsole (2) attached to the bottom of the midsole (1) and in contact with the ground; the midsole (1) comprises a heel support portion, a foot arch support portion, a sole support portion, and a toe support portion; and an extension support table (10) is provided on each of the left side and the right side of the toe support portion, so as to provide support for a big toe and a small toe of the runner when the toes of the runner extend. Since the extension support table (10) is provided on each of the left side and the right side of the toe support portion, reliable and stable support can be provided for the big toe and the small toe of the runner when the two sides of each metatarsophalangeal joint of the runner extend outwards, and foot discomfort of the runner is avoided while ensuring that the two sides of each metatarsophalangeal joint of the runner naturally extend. The running shoe sole system not only improves the comfort of the running shoe, but also effectively prevents the occurrence of sports injury.\nB: Disclosed is a multi-functional health-care insole, comprising an insole body (100). The insole body (100) comprises a surface coating layer (101), an insole body elastic layer (102), a rubber layer (103), a spacer layer (104) and a bottom coating layer (105), wherein the surface coating layer (101) is provided with five massage blocks (12), the five massage blocks (12) being arranged at positions corresponding to five toes of a human body; each of the massage blocks (12) comprises a massage block protection layer (1201), a far-infrared layer (1202), a massage block elastic layer (1203) and an isolation layer (1204), the far-infrared layer (1202) being composed of far-infrared granules; the surface coating layer (101) is divided into a forefoot region (1), a central foot region (2) and a posterior foot region (3), with the central foot region (2) being higher than the posterior foot region (3) and the forefoot region (1); the edge of the posterior foot region (3) extends toward the central foot region (2), forming an edge structure; and the edge structure comprises an inner central foot edge (21) and an outer central foot edge (22).\nC: Socks, and in particular, wear-resistant socks. Each sock comprises a sock body. A removable thickening layer (1) is provided outside a toe portion of the sock body. A thickening piece (2) is fixedly provided inside a heel portion of the sock body. The sock body is provided with a pocket (3) used for storing small items. A soft nylon zipper (4) is provided outside the pocket (3). A turn-up (5) is provided at a cuff of the socket body. The turn-up (5) is provided with an opening (6) convenient for fitting a pair of socks together. The removable thickening layer (1) is bonded to the entire toe portion of the sock body, or the removable thickening layer (1) is bonded to the edge of the toe portion of the sock body. The opening (6) is an elongated hole, and the both ends are provided with fillets. The wear-resistant socks are scientifically designed, wear resistant, long in service life, convenient for storing small items, and easy to store the original pair of socks together. Therefore, the socks bring great convenience to lives and use of people, and have good practical application value and promotion value.\nD: A vacuum-molded orthotic insole (10) and a preparation method therefor. The orthotic insole (10) is filled with multiple particles (12) in an airtight outer layer. The outer layer is provided with an air passage thereon and has a plane that matches the plane of a sole in structure. When the sole steps on the outer layer in a right posture, the particles can move in the outer layer along with the stereoscopic structure of the sole, and air inside the outer layer can be discharged out of the outer layer through the air passage because of the weight applied by the sole. And then, the air passage is vacuumed until the particles are shaped to press against each other and cannot continue to move, and the air passage is sealed airtight. In this way, the orthotic insole capable of helping the sole to be put in the right posture can be quickly and customized.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multifunctional underpants structure suitable for sport shorts, underwear and pajama pants, comprising a pants body (10); a holding cabin (40) is provided at the front part of the pants body (10), the bottom of the holding cabin (40) is provided with an elastic band (41) connected to a position right below the pants body (10), the elastic band (41) is used for fixing and pulling the holding cabin (40), the pants body (10) is provided with a penis and scrotum structure within the holding cabin (40), the holding cabin (40) is used for wrapping the penis and scrotum structure, the penis and scrotum structure comprises a scrotum cabin (20) connected to the pants body (10), a penis cabin (30) is provided at the front part of the scrotum cabin (20), and an opening (31) is provided at the front end of the penis cabin (30). The multifunctional underpants structure is comfortable to wear, and facilitates improvement of the physiological health of males.\nA: An organic erectile dysfunction treatment device, comprising: an implant portion (10) used for being placed within the penis of a male patient; a driving apparatus (20) connected to the implant portion (10) and used for changing the operation state of the implant portion (10); and a sensing terminal (30) which is in signal connection with the driving apparatus (20) and used for sensing behavior information for the male patient to match a preset rule, so that the driving apparatus (20) changes the operation state of the implant portion (10) according to the behavior information. According to the device, the behavior information of the male patient is sensed by means of the sensing terminal (30), and the driving apparatus (20) changes the operation state of the implant portion (10) placed in the penis of the male patient when the behavior information matches the preset rule, so that the patient can achieve the control of the operation state of the implant portion (10) by completing the specific behavior, and it is very convenient to use the device.\nB: A head structure of an applicator, comprising a sleeve cylinder (30), an applying head (10), a fixture (20), and a fixed base (40). The sleeve cylinder (30) is hollow and comprises a first connecting part (31) and a second connecting part (32). The applying head (10) is provided therein with a through hole (11) and comprises a head part (12) and an annular tail part (13). The fixture (20) comprises a bottom part (21) and at least a pair of symmetric and flexible toothed fittings (22) connected to the bottom part (21). The annular tail part (13) of the applying head (10) is arranged between the toothed fittings (22). The toothed fittings (22) are capable of clamping the applying head (10). The bottom part (21) of the fixture (20) is fixedly connected to the first connecting part (31) of the sleeve cylinder (30). The fixed base (40) comprises a base (41) and a hollow fixed rod (42) connected to the base (41). The base (41) of the fixed base (40) is fixedly connected to the second connecting part (32) of the sleeve cylinder (30). One extremity of the fixed rod (42) is inserted into the through hole (11) of the applying head (10) and in communication with the through hole (11); the other extremity is in communication with the external environment. The head structure is simple, has strong practicability, is easy to carry, and can be used repeatedly.\nC: Underpants with male physiological characteristics comprise an underpants body (10), a first protruding portion (11) for accommodating a penis, and a second protruding portion (12) for accommodating testis. The first protruding portion (11) and the second protruding portion (12) are disposed on the underpants body (10). The first protruding portion (11) accommodates the penis, and the second protruding portion (12) accommodates the testis, so as to protect two male physiological characteristics separately. The underpants have a reasonable shape, are adaptable to male physiological characteristics, facilitate normal physiological development of adolescents, and also have health care effects on a reproductive system of an adult.\nD: Period underwear with a temperature sensing patch. The period underwear with a temperature sensing patch comprises a period underwear body (1), wherein a pad (2) is provided at a crotch portion (102) of the period underwear body (1); the period underwear body (1) comprises an outer non-woven fabric layer (10) and an inner non-woven fabric layer (20), a surface of the outer non-woven fabric layer (10) being coated with a thermally conductive ink strip (5); a temperature sensing patch (4) is provided at a position, corresponding to a female's uterus, of the period underwear body (1); the temperature sensing patch (4) comprises a first air-impermeable film layer (41), a dust-free paper layer (43) and a second air-impermeable film layer (42); the first air-impermeable film layer (41) is bonded to the outer non-woven fabric layer (10); a peripheral edge of the second air-impermeable film layer (42) is bonded to the first air-impermeable film layer (41), an interlayer is formed between the first air-impermeable film layer (41) and the second air-impermeable film layer (42), the dust-free paper layer (43) is provided in the interlayer, and a self-heating material (44) is distributed on the dust-free paper layer (43); a plurality of air-permeable areas (401) are provided on the second air-impermeable film layer (42), and air permeable holes (46) are provided in each air permeable area (401); and a third air-impermeable film layer (45) is bonded to each air-permeable area (401).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn intelligent belt which automatically monitors and adjusts tightness by means of an electromagnetic array, comprising: a belt buckle (1) and a belt body (2); the belt buckle (1) comprises a waist measuring device (11), a tightness adjustment device (12) and a belt fixing device (13); the waist measuring device (11), the tightness adjustment device (12) and the belt fixing device (13) are all provided with hollow housings having a rectangular cuboid structure, the housings being sequentially hinged by means of a hinge (112); the waist measuring device (11) comprises a roller (113), a rotary encoder (114) and a counter (115); the tightness adjustment device (12) comprises a microcontroller (123), a gyroscope (124), a wireless transceiving device (125), an accelerometer (126), a pressure sensor (116), a pressing plate (128), a magnet (129) and an electromagnet array (122), which are respectively disposed in an inner cavity; one end of the belt body (2) is connected to the belt fixing device (13), while the other end is provided with a snap-slot (21) and an adjustment buckle (22). The intelligent belt which automatically monitors and adjusts tightness by means of an electromagnetic array has a well-designed structure, and has a simple structure, while being convenient to use, safe and reliable, highly intelligent and so on, effectively solving the problem wherein an ordinary belt cannot automatically adjust the length thereof.\nA: A lower limb movement-assisting machine skeleton having a center-of-gravity self-adjustment and balancing function, comprising a base (1), hip supports (2), crus supports (3), foot securing plates (4), and drivers (5). A waist rotating base (12) is hingedly connected to the base (1); the waist rotating base (12) is provided with a center-of-gravity adjusting device (17); the center-of-gravity adjusting device (17) comprises support blocks (170), a first motor (171), a lead screw (172), a counterweight slide block (173), and buffer springs (174); the upper ends of the hip supports (2) are hingedly connected to the lower surface of the base (1) by means of second spherical hinges (22); the lower ends of the hip supports (2) are hingedly connected to the upper ends of the crus supports (3); the lower ends of the crus supports (3) are connected with the foot securing plates (4). The lower limb movement-assisting machine skeleton having a center-of-gravity self-adjustment and balancing function is reasonable in structure, has the advantages of a simple structure, convenient use, and a high intelligence level, and effectively resolves the problem that the existing lower limb movement-assisting machine skeleton cannot well stabilize the center of gravity of a human body.\nB: Provided are a belt (10) adjustment method and belt (10); the belt (10) comprises a belt body (12), a belt buckle (11) arranged on one end of the belt body (12), and an engaging member (13) arranged on the other end of the belt body (12); the engaging member (13) is elongated; the belt body (12) forms a closed loop when the belt buckle (11) and the engaging member (13) are engaged; the belt (10) adjustment method comprises: when the belt (10) is in an automatic adjustment mode, the current pull-together size and current tightening force are obtained, and it is determined whether the current tightening force has changed; if it is determined that the current tightening force has changed and the change exceeds a first threshold, then the current pull-together size is adjusted to a target pull-together size (S705); the physical change conditions of the user are monitored and adjustment is made automatically, improving satisfaction regarding the use of the belt (10).\nC: Provided is a tightness adjustment device, comprising an adjustment cord, two toothed tapes, and a slider which matches the two toothed tapes. Each toothed tape comprises a tape and a row of teeth arranged on a working side of the tape. The slider is internally provided with two channels, wherein the two rows of teeth extend into the two channels in one-to-one correspondence, and the two channels at least converge at a first end to form a tightening channel. The slider is further provided with a separator block, wherein the separator block is located between the two channels; and the separator block is provided with a separator cone, the tip of which faces the tightening channel, with the separator cone being in one-to-one correspondence with the tightening channel. The adjustment cord is connected to the slider. By means of such a configuration, in the tightness adjustment device provided in the present invention, the adjustment cord can be fully arranged inside same, the structure is simple and compact, and by means of pulling the slider, the adjustment cord inside can be driven to tighten or loosen. In addition, when the tightness adjustment device provided in the present invention performs tightness adjustment, it is only necessary to pull the slider, and operation thereof can be performed with one hand.\nD: A high-pressure centrifugal intelligent quick coffee filtering and brewing apparatus, comprising an adjustable support (1) and a centrifugal filtering and brewing mechanism (2), wherein the adjustable support (1) comprises a base plate (11), an upright column (12) vertically fixedly provided on the base plate (11), a first supporting plate (13) and a second supporting plate (15); an upper end of the upright column (12) is provided with a hollow cavity (121) which is provided with an upward opening, the hollow cavity (121) being internally provided with a first motor (123), a screw rod (124) and a bearing (125); a lower end of the upright column (12) is provided with a plurality of adjusting screw holes (16), and the first supporting plate (13) and an adjusting screw hole (16) are fixedly connected to each other by means of a bolt; the first supporting plate (13) is further embedded with a second motor (131), and a spindle of the second motor (131) is provided thereon with a transmission gear (132); the centrifugal filtering and brewing mechanism (2) comprises a pot body (21), a rotary base (22), a lid body (23), a water pump (24), a funnel (25) and a water conveying tube (26). The present high-pressure centrifugal intelligent quick coffee filtering and brewing apparatus has a reasonable structure, and has the advantages of a simple structure, convenient use, fast brewing speed, being safe and reliable, having a good brewing effect, and so on.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn integrally-molded 4D knitted women shoe, comprising a vamp (1); the vamp (1) is a fully knitted and fully molded vamp; the vamp (1) consists of a toe cap (2), sidequarters (3), a heel piece (4), a sole (5), a sealing side (6), an elastic lace (7) and a collar edge (8); the toe cap (2) and the heel piece (4) are knitted at the front and back ends of the sidequarters respectively, and the connecting portion thereof is manufactured by means of needle holding; the elastic lace (7) is connected at the intersection of the toe cap (2) and the sidequarters (3); the sealing side (6) is disposed at the rear end of the toe cap (2) and the two ends extend to the top of the sidequarters (3); the connecting portion of the sole (5) and the toe cap (2) is manufactured by means of needle holding; and the heal piece (4) is provided on its top a collar (8); and the fully-molded vamp (1) enables the vamp (1) to maintain a certain molding by means of steam shaping.\nA: The present invention belongs to the field of sports shoes, and particularly relates to a shoe for sports. The shoe for sports comprises a shoe sole, a shoe body, an anti-ankle-sprain assembly, an anti-rubbing assembly, a mesh assembly and a comfort assembly. The shoe sole comprises a front sole portion and a rear sole portion, the front sole portion and the rear sole portion being integrally formed. The shoe body comprises a shoe heel portion and a shoe upper portion, wherein the shoe heel portion and the shoe upper portion are integrally formed; the shoe heel portion is located above the rear sole portion; the shoe upper portion is located above the front sole portion; and an inner chamber is formed between the shoe body and the shoe sole. The anti-rubbing assembly is installed on an inner wall of the shoe heel portion, and one end of the anti-rubbing assembly penetrates to the outside of the inner chamber, and is installed on an outer wall of the side of the shoe heel portion that is away from the shoe upper portion. The mesh assembly is installed in the inner chamber by means of several groups of hook-and-loop fasteners. According to the present invention, the precision of measurement of the movement speed of a runner can be improved, and harm caused by an ankle sprain can be reduced.\nB: Provided are a woven shoe sole, manufacturing method, and woven shoe; said woven shoe is integrally woven using weaving yarn; the weaving yarn is soft and flexible, such that the woven shoe has a high degree of comfort; thermal wire is also added to at least one of the sole heel part, (11), sole toe part (12), and the sole bottom part (14) of the woven shoe (1), such that the woven shoe maintains its comfort while the shoe form is also strong. In comparison with processes whereby the upper is woven into a sheet shape and then cut and stitched, the process for manufacturing the integrally formed woven shoe is simple and highly efficient, while also avoiding the otherwise likely occurrence of the stitch opening up.\nC: Disclosed are a manufacturing method for a waterproof and breathable shoes and a shoe upper structure of the waterproof and breathable shoes, wherein the method comprises: manufacturing shoe soles, manufacturing shoe uppers, and adhering the shoe uppers and the shoe soles; and the specific steps are as follows: S1, manufacturing the shoe soles: plasticating and mixing a shoe sole material by means of an open mill and carrying out cutting and compression moulding according to the set requirements, and thus preparing the shoe soles; S2, manufacturing the shoe uppers: sequentially stacking a knitted face and a polyurethane layer as an outer layer (1) and a knitted face as an inner layer (3) into a moulding mould in a sheathing manner for being formed by hot pressing; and S3, adhering the shoe uppers with the shoe soles: adhering the shoe uppers and the shoe soles of the waterproof and breathable shoes according to size by means of adhesive glue. The shoes are flexible and portable and the flexibility and portability in wearing the shoes on the feet are the same as those obtained by wearing knitted socks; the feel to touch is excellent and a middle layer (2) of the shoe upper structure of the shoes uses a telescopic structure, enhancing the waterproofness and breathability of the shoe upper structure, further enhancing the comfort level of the waterproof and breathable shoes, and in addition, meeting the operational performance of conventional shoes.\nD: A shoe with a detachable and changeable upper or sole. The shoe comprises an upper (1) and a sole (2). Several cord loops (3) for connecting the upper (1) to the sole (2) are fixedly provided at the periphery of the bottom of the upper (1). Several through-holes (4), corresponding to the cord loops (3) and allowing the cord loops (3) to pass therethrough, are provided at the periphery of the top of the sole (2). The shoe does not require a complex structure such as a zipper, fastener or the like, thereby reducing production costs. The upper (1) and the sole (2) are connected by means of the cord loops (3) and the through-holes (4). The shoe is comfortable to wear, securely connected and does not break easily. The upper and the sole are easily detached and changed, providing variety for the shoe and creating more choices for consumers. The sole can be printed completely and directly by a family 3D printer, without requiring processes such as processing, bonding, or stitching that require factory-based equipment, thereby being convenient and practical. A connection method for the upper (1) and the sole (2) is also disclosed.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an electric hair dryer with dual-purpose length, comprising a housing body (1), an insulating sheath (2) being detachably mounted on the outer wall of a front housing (11) of the housing body (1). When the insulating sheath (2) is not being used, the short body design of the electric hair dryer makes operation more flexible and convenient, reducing the labour intensity for a user. To meet the requirements of users for tasks in which the front housing (11) is customarily gripped, when the insulating sheath (2) is being used, the insulating sheath (2) is located on the outside of the front housing (11) so as not to be directly heated by hot air in the housing body (1) and electrical heating elements. Therefore, even after a long period of use, the insulating sheath (2) will still not cause burns and the user can grip the insulating sheath (2) as needed for drying or shaping tasks without being burned.\nA: Provided is a cooling sunshade tool for outdoor use, which is composed of dual flexible pipes, a flexible pipe plug and an insulation cover. The dual flexible pipes comprise an inner pipe (4) and an outer pipe (3). The inner pipe (4) is filled with water (22), and can be bent into arbitrary shapes. The dual flexible pipes are located behind the insulation cover, and are placed into a refrigerator to freeze integrally. Where the insulation cover is of a hard material, it is provided with a plurality of through-holes (11) thereon, and is connected to a box body (14). The box body (14) is provided with a fan (15) therein. The fan (15) sends out a cooled airflow. The sunshade tool has a simple structure and strong practicality.\nB: Disclosed are a heater and a non-burning heated electronic cigarette. The heater comprises an inner-layer heating body (100), an outer-layer heating body (101) and a heat insulation sleeve (102), wherein a front end of the outer-layer heating body (101) is a closed end, and a rear end thereof is an open end; two ends of the inner-layer heating body (100) are open ends; a first through hole (103) penetrates through a front end face (110) of the heat insulation sleeve (102), and a second through hole (104) penetrates through a rear end face (112) of the heat insulation sleeve (102); the outer-layer heating body (101) is sleeved in the heat insulation sleeve (102) and forms an outer layer air current heating channel (106) with an inner wall of the heat insulation sleeve (102), and a front end of the outer-layer heating body (101) is in sealing connection with an inner wall of the first through hole (103); the inner-layer heating body (100) is sleeved inside the outer-layer heating body (101) and forms an inner layer air current heating channel (109) with an inner wall of the outer-layer heating body (101), and a rear end of the inner-layer heating body (100) is in sealing connection with an inner wall of the second through hole (104); and several air inlet holes (111) in communication with the outer layer air current heating channel (106) penetrate through the front end face (110) of the heat insulation sleeve (102). The non-burning heated electronic cigarette comprises the heater, and has the advantages of increasing the heating route and heating time of the air, having a small volume, and steadily increasing the heating temperature.\nC: A non-combustion electronic cigarette apparatus used under electrical heating, comprising an electrical heating control device (10) and an electrical heating sleeve (11) adjacent to the electrical heating control device (10). The electrical heating sleeve (11) is electrically connected to the electrical heating control device (10); the electrical heating control device (10) comprises a battery, and a bottom region of the electrical heating sleeve (11) is communicated with the outside by means of an air passage. An electrical heating probe (12) mounted at the bottom of the electrical heating sleeve (11) is further comprised. The electrical heating probe (12) is electrically connected to the electrical heating control device (10), and the electrical heating sleeve (11) and the electrical heating probe (12) are insulated and separated.\nD: An improved structure for a hair dryer. A body (10) of a hair dryer comprises a front housing (1), a rear housing (2), a conical inner sleeve (3), a central shaft tube (4), a heating unit (5), a power set (6), and an impeller (7). The hair dryer enables linearly proceeding airflows generated by a fan unit to mix with external ambient airflows, so that the hair dryer has strong penetrating force and uniform cold/hot air. Moreover, such penetrating capability speeds up the drying of wet hair; and due to the function of mixing heating airflows and external ambient airflows, swirling airflows blown out from a central air outlet (112) would not have a dry heat temperature, and can be maintained at a desired cold/warm temperature, so that a user feels comfortable during a drying process.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA novel silica gel powder puff, comprising a first silica gel layer (1) and a second silica gel layer (2). The first silica gel layer (1) is coated by a first outer thin film layer (3) and a first inner thin film layer (4); the second silica gel layer (2) is coated by a second outer thin film layer (5) and a second inner thin film layer (6); a part of the edge of each coating film layer of the first silica gel layer (1) and the second silica gel layer (2) is bonded; openings (7) are provided at one or two ends to form a cavity (8) between the first silica gel layer (1) and the second silica gel layer (2); the cavity is used for receiving a finger or a handle, thereby facilitating holding. The operations are simple, flexible and easy, and the makeup efficiency is improved.\nA: A novel silica gel powder puff, comprising a silica gel body (1) prepared from silica gel. The silica gel body (1) has an arc-shaped use surface (2); the arc-shaped use surface (2) is provided with a protruding area (3) which is partially protruded out of the arc-shaped use surface (2) in an eccentric position; the arc-shaped use surface (2) and the protruding area (3) both consist of a silica gel matrix (4) and silica gel fluff (5) intensively provided on the silica gel matrix (4). The powder puff is made of a silica gel material, so that the powder puff can be repeatedly cleaned, and the hygiene problem caused by residue of paste is avoided; the powder puff is safe to use, has high adhesion and convenience, and can be designed into various shapes according to different requirements.\nB: Provided are a silica gel vertical-cotton pillow core, a preparation method therefor, and a pillow. The silica gel vertical-cotton pillow core comprises a vertical-cotton pillow core body (3), wherein a first groove and a first silica gel layer (1), arranged in the first groove and engaged with the first groove, for having the head of a user placed therein are provided on one side of the pillow core body, and the first silica gel layer and the vertical-cotton pillow core body are detachably arranged; and a second groove and a second silica gel layer (2), arranged in the second groove and engaged with the second groove, for having the head of the user placed therein are provided on the other side of the pillow core body, and the second silica gel layer and the vertical-cotton pillow core body are detachably arranged. The silica gel layers comprise a bladder body and a silica gel filled in the bladder body, and the bladder body is formed by hot-pressing two thin films along the periphery thereof. The silica gel vertical-cotton pillow core uses a combination of silica gel and vertical-cotton, has soft and skin-friendly properties that ordinary pillow cores do not have, and has better chemical stability, rebound resilience and breathability than ordinary pillow cores.\nC: Disclosed is a silica gel-coated glass container, comprising a main glass container body, wherein the main glass container body comprises a bottle body (1), a bottleneck (2) integrally connected to the upper side of the bottle body (1), and a bottle bottom (3) integrally connected to the lower side of the bottle body (1); an accommodating chamber (4) is formed in the bottle body (1); the bottleneck (2) has an opening (5) running vertically through the accommodating chamber (4); connection threads (6) are formed on an outer surface of the periphery of the bottleneck (2); an outer surface of the bottle body (1) and an outer surface of the bottle bottom (3) are completely covered by an integrated silica gel layer (7); the silica gel layer (7) is formed by impregnation and is fixed to the outer surface of the bottle body (1) and the outer surface of the bottle bottom (3); and the outer surface of the bottleneck (2) is not covered by the silica gel layer (7). Thus, the glass container has the advantages of slip resistance, heat insulation, breakage resistance and the like, and effectively solves the problems that a traditional glass container will easily slip, is hot and will easily break when being used, and that broken glass is scattered everywhere. Moreover, the glass container is simple in structure, easy to produce and manufacture, and suitable for popularization and application.\nD: A light emitting diode phototherapy belt (8), comprising a non-transparent silica gel layer (2), a transparent silica gel layer (5), and a flexible circuit board (4). The non-transparent silica gel layer (2) and the transparent silica gel layer (5) are bonded together at the periphery so that the flexible circuit board (4) is wrapped between the non-transparent silica gel layer (2) and the transparent silica gel layer (5); multiple light emitting diodes (41) are welded on one side of the flexible circuit board (4), the side of the flexible circuit board (4) where the light emitting diodes (41) are welded abuts against the transparent silica gel layer (5), and the other side of the flexible circuit board (4) abuts against the non-transparent silica gel layer (2); the non-transparent silica gel layer (2) is provided with an opening (21), and the opening (21) is communicated with the flexible circuit board (4) so that a control device (7) is inserted into the opening (21) and then electrically connected to the flexible circuit board (4). Accordingly, also provided is a light emitting diode phototherapy device. The phototherapy device is water-proof, easy to clean, and of no sensitization risk when exposed to human skin.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a garment capable of being transformed into a bag. The garment comprises a garment body (1), and a transformable bag (2) provided inside or outside of the garment body (1), the transformable bag (2) being composed of an outer body (21), an inner pocket (22) and the garment body (1). The outer body (21) is connected with the garment body (1) and the inner pocket (22) is attached to the garment body (1), the inner pocket (22) being located between the garment body (1) and the outer body (21). After the garment body (1) is turned inside out and transformed into the form of a bag, the inner pocket (22) is then located on the outer surface of the bag, and the garment body (1) is accommodated in the transformable bag (2). That is to say, the transformable bag (2) is turned inwards or outwards so as to receive or release the garment body (1), so that the transformable garment transforms into the form of a bag or returns to the form of a garment, and during the transformation of the transformable garment between a bag and a garment, personal items placed in a patch pocket (22a) and/or the inner pocket (22) do not need to be removed.\nA: A surgical gown (100), comprising a gown body (10) and a prompting structure (20), the gown body (10) comprising a sterile area (11) for prohibiting contamination of bacteria and a nonsterile area (12) which allows contamination of bacteria; the prompting structure (20) is arranged at a junction of the sterile area (11) and nonsterile area (12) of the gown body (10) and is used for distinguishing the sterile area (11) and the nonsterile area (12) on the gown body (10). Since the surgical gown (100) is provided thereon with the prompting structure (20) for distinguishing the sterile area (11) and nonsterile area (12) of the gown body (10) of the surgical gown (100), medical staff, when using the same, may rapidly distinguish the sterile area (11) and nonsterile area (12) as well as the boundaries thereof by means of a naked eye, so that the impact of warning and reminding the medical staff may be reinforced, contamination of the sterile area (11) may be prevented, and the surgical gown may be immediately replaced when the sterile area (11) is contaminated with blood or tissue fluid.\nB: The present invention relates to a backpack coat with an adjustable length. The backpack coat comprises a coat body capable of being used as a backpack body; a hat (208) capable of being used as a backpack cover after being buckled forwards; a fifth connector (204) capable of connecting a lower portion of the coat body together to form a backpack bottom (207); second decorations capable of being used as backpack belts (205); an extended sheet, comprising a sheet-shaped body (101) formed by sequentially connecting a first side (102), a second side (103), a third side (104) and a fourth side (105) end to end; a first connector (106) enabling the sheet-shaped body (101) to be formed into a barrel shape; and a third connector (108) connected to the lower portion of the coat body. The backpack coat can lengthen the coat, no extra clothes need to be carried, peoples' requirements are satisfied, the coat is designed to be of a changeable backpack structure, and the convenience of people's lives is greatly improved.\nC: A reusable surgical gown (100), comprising a gown body (10) provided for a user to wear, the gown body (10) comprising a sterile area (11) for prohibiting contamination of bacteria and a nonsterile area (12) which allows the contamination of bacteria; a ventilation structure, arranged on the gown body (10) to be used for ventilating the body of a user covered by the gown body (10); and a contamination-preventing structure (80), arranged on the gown body (10) to be used for separating contact between the nonsterile area (12) and the sterile area (11) so as to prevent the nonsterile area (12) from contaminating the sterile area (11). The presence of the contamination-proof structure (80) ensures that cross infection does not occur between the nonsterile area (12) and the sterile area (11) when medical personnel are seated. Thus medical personnel may rest properly during an operation process and do not need to stay standing for a long duration due to fear of the nonsterile area (12) contaminating the sterile area (11); thus, the intensity of work for medical personnel is reduced and the probability of cross infection occurring in a process of utilizing the reusable surgical gown multiple times is reduced, thereby guaranteeing utilization safety thereof.\nD: Provided are a tight-fitting garment (100) used for monitoring health, and a method for monitoring health. the tight-fitting garment (100) comprises a garment body (05), and a belt (01), breast pocket (03), cuff (02), and edge (04) arranged on the garment body (05). The belt (01) comprises a belt body (1), a belt head (2), and a belt buckle (3). In the health monitoring method, the voltage signal of the electrode (101) in the groove (10) the belt buckle (3) catches is measured by the voltage sensor (30) in the belt buckle (3), and the waist circumference data of the wearer is automatically measured; by means of a breathing sensor (22) in the belt head (2), breathing frequency is detected from the abdomen of the wearer; by means of a heartbeat sensor (103) in the breast pocket (03), heart rate data is measured from the chest of the wearer; by means of a blood pressure sensor (102) in the cuff (02), blood pressure data is measured from the arm of the wearer; the described measured physical-indication data are sent to a cloud health management platform by means of a communications unit (23) in the belt body (2). The tight-fitting garment (100) automatically measures physical-indication data of a wearer all at the same time, thereby effectively monitoring in real time the health conditions of the wearer.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA toothbrush with a vocal instruction function, comprising: a bristle portion (10) comprising a bottom plate (11) implanted with a plurality of bristles (12) therein for cleaning teeth and gingiva; a handle comprising a cavity (31); a battery pack (40) located in the cavity (31) and comprising at least one battery; a circuit comprising a processor (51) with a voice processing function; a storage element (52) capable of storing a voice message for teaching a child how to brush teeth properly; and a speaker (60) for receiving a voice signal from the processor (51) and playing the stored voice. The toothbrush with the vocal instruction function can play the voice for instructing teeth brushing actions, so that a person brushing the teeth can use the toothbrush and brush the teeth according to the played voice. The toothbrush can also sense tooth brushing pressure and display the sensed pressure value so as to remind a user to brush the teeth with proper force.\nA: Disclosed is a toothbrush of a dual-layer bristle structure, the toothbrush comprising a toothbrush handle (10) and a toothbrush head (20). The toothbrush handle (10) is an elongated rod. The toothbrush head (20) is arranged at an end of the toothbrush handle (10), and comprises a base (21), an inner forming bristle portion (22) and a plurality of outer bristle-planting bristle portions (23), wherein an end of the base (21) is connected to the toothbrush handle (10); the inner forming bristle portion (22) has a plurality of first bristles (221) and is arranged on the base (21); and the outer bristle-planting bristle portions (23) are arranged on the base (21) and surround the inner forming bristle portion (22) at intervals, and each outer bristle-planting bristle portion (23) comprises a support base (232) and a plurality of second bristles (231), with the support base (232) being arranged on the toothbrush head (20) and the second bristles (231) being arranged on the support base (232). By means of arranging the second bristles (231) on the support base (232), the supporting performance of the second bristles (231) is improved, such that apart from having the function of cleaning gaps between teeth, the second bristles (231) also have the effect of massaging the gingiva.\nB: An electric toothbrush using three-sided bristles, comprising an electric toothbrush. The electric toothbrush comprises a toothbrush head; the toothbrush head comprises a toothbrush head handle (1); a first plate (4) is arranged below the toothbrush head handle (1); and a first bristle sheet (9) and a second bristle sheet (8) are longitudinally arranged below the first plate (4). Tooth cleaning demands of people different in oral cavity and tooth size can be satisfied by means of surrounding effects of the three-sided bristles and self-adaptive effects of automatic bristle fitting along with thickness changes from front teeth to molars. By design of the three-sided bristles, the problem of difficulty in cleaning inner side areas of teeth is solved, various bad tooth-brushing habits are avoided, a user does not need to initiatively change toothbrush head positions to search cleaning points and only need to push the toothbrush head to complete a whole tooth-brushing process, and accordingly the tooth-brushing process is simplified, and tooth-brushing efficiency is improved.\nC: A smart toothbrush (1) comprising: a handle section (10), a protective cover (30), a bristle section (40), a sensing unit (20), and a signal processing module (50). The sensing unit (20) and the signal processing module (50) are provided in an internal space of the handle section (10). The handle section (10) is provided with a sensing area (13) and a sensing area opening (131). The sensing area opening (131) is in communication with the internal space. The protective cover (30) is provided at the sensing area opening (131). The sensing unit (20) is provided corresponding to the protective cover (30). The sensing unit (20) executes a physiological sensing function in the sensing area (13) and generates physiological sensing information. When a user is holding the toothbrush (1) to brush teeth, the palmar side of the fingers or the palm of the user presses the sensing area (13), the sensing unit (20) is thus allowed to execute the physiological sensing function via the sensing area (13) and to generate the physiological sensing information; moreover, the physiological sensing information can be transmitted by the signal processing module (50) in a wireless manner to an electronic device for displaying, an application in the electronic device can further be utilized for data analysis, and allows, with smart interconnections equipped, the user to comprehensively learn health information of self.\nD: A toothbrush of the present invention comprises a handle and a brush head, the brush head being provided with an outer frame, multiple cylinder bodies, and a flexible filling layer. The outer frame is integrally provided at the tail end of the handle, and the multiple cylinder bodies are provided at intervals to form the shape of a brush head, one ends of the multiple cylinder bodies are recessed to form fixing grooves for implanting bristles, and the flexible filling layer is provided between the outer frame and the multiple cylinder bodies. When the toothbrush of the present invention is used by a user to brush teeth, as the bristles in the multiple cylinder bodies can respectively shift towards different directions, the tooth faces and the tooth gaps can be effectively cleaned, thereby having a good dental cleaning effect and providing convenience for the operation of the user; in addition, the flexible filling layer absorbs an excessive force applied by the user, thereby avoiding damage to the gingivae.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn electric toothbrush capable of cleaning the teeth in all directions, comprising a handle, a connecting portion provided at a front end of the handle, a motor, an outer brush plate (3), an inner brush plate (4), bristles (5) that are provided on inner surfaces of the inner brush plate (3) and the outer brush plate (4), and an inner bottom casing (6); further comprised is an outer bottom casing (7) that is connected by the connecting portion; an outer rotating plate (8) that is movably disposed within the outer bottom casing (7) and that is connected to the motor; an outer crank (9) that is rotatably connected to the outer rotating plate (8) and the outer plate disk (4) and that is located within the outer bottom casing (7); an inner crank (10) and an inner rotating plate (11) that are disposed within the inner bottom casing (6); the inner crank (10) is rotatably connected to the inner brush plate (4) and the inner rotating plate (11) respectively; at least one guiding rod (13) that is located at a side of a connecting rod is disposed on the outer bottom casing (7), at least one longitudinal strip-shaped inner guiding hole (401) is provided within the inner brush plate (4), and at least one longitudinal strip-shaped outer guiding hole (301) is provided within the outer brush plate (3); the inner brush plate (4) and the outer brush plate (3) may slide relative to the guiding rod (13). Driven by the motor, the bristles (5) on the inner brush disk (4) and the outer brush disk (3) may achieve cleaning in all directions for the inner and outer walls of the teeth, the gaps between the teeth, and so on; the present invention is convenient to use and has high cleaning efficiency.\nA: Disclosed is a floor cleaning device with a hair roller (12). A brushing disc (1) is installed at the bottom of the floor cleaning device. The brushing disc (1) is provided with at least one of brushing bristles (3), brushing pieces (4) or brushing strips (2). At least one brushing bristle (3), brushing piece (4) or brushing strip (2) is in a curvilinear and radial arrangement. The brushing bristles (3), the brushing pieces (4) or the brushing strips (2) can be arranged continuously or intermittently. When the brushing disc (1) rotates, the brushing bristles (3) approximately rotate in the form of concentric circles or centripetally. The brushing pieces (4) or the brushing strips (2) rotate centripetally. At the bottom of a suction channel (5) of the floor cleaning device, a suction port (6) is formed at the centre of the brushing disc (1) or near the centre of the brushing disc (1). The roll-shaped hair roller (12) is arranged transversally across a tube wall of the suction channel (5). At least one side of the hair roller (12) is provided with teeth meshed with teeth (13; 14) arranged at an upper or lower edge of an inner ring of the brushing disc (1) or at a lower or inclined lower edge of a driving shaft of the brushing disc (1). When the brushing disc (1) rotates, the hair roller (12) is driven to rotate, such that long hair that may possibly enter an impeller (7) through the suction channel (5) can be winded and retained on the hair roller (12).\nB: An electric toothbrush for cleaning teeth, formed by connecting a toothbrush main body (1) and a toothbrush head (2). In the toothbrush main body (1), a battery (13) is connected to a switch (16), the switch (16) is connected to a motor (14), and the motor (14) is connected to a crank mechanism or a synchronizing mechanism; with power supplied by the battery (13) and the motor (14), and under the action of the crank mechanism and the synchronizing mechanism, the rotation of the motor (14) is converted to an action of drawing a circle by a connecting rod (7), thereby driving the toothbrush head (2) connected to the connecting rod (7) to carry out the action of drawing a circle as the connecting rod (7), so that a function of cleaning teeth is implemented.\nC: A hand-pushed floor-washing machine capable of washing in multiple directions, comprising: a main body (1), a frame (2), a handle connecting rod (3), a handle (4), buttons (5), hub motors (6), a swinging head (8) and a vacuum motor (7); the main body (1) comprises a brush disc motor (11), a motor mounting plate (12), a rotating component, a holding head (111) component, a locking device (18) and a brush disc (19); the rotating component comprises a connecting sleeve (13), a mounting sleeve (16) and a bottom cover ring (17); and the holding head (111) component comprises a copper sleeve (14), a holding head support (15), a pin shaft (112), a rubber pad (110) and a holding head (111); the holding head (111) may rotate 180 degrees in two directions so that the holding head may enter low-down spaces such as under tables and under beds to perform cleaning, thus having a multi-directional washing function, thereby greatly improving the usage effect and enlarging the application range; meanwhile, flexible turning during walking is achieved with the aid of two hub motors (6), thereby saving time and labor, while operation is simple.\nD: A brush disc (1) for a cleaning robot is provided. A plurality of curved disc spokes (2) are arranged on the brush disc (1) mounted downwardly at the bottom of the cleaning robot in a ring-shaped and radial manner. Each disc spoke (2) can be continuous or discontinuous. At least one of bristles (3), brush sheets (4) and brush strips (5) are arranged downwardly on the disc spokes (2). At least one of bristles (3), brush sheets (4) and brush strips (5) are arranged outwardly and slantwise on the outside of the brush disc (1). When the brush disc (1) is rotated, the bristles (3), the brush sheets (4) or the brush strips (5) rotate centripetally. A suction port (6) is arranged at the center of the brush disc (1) or in a position close to the center of the brush disc (1) and is ring-shaped or strap-shaped or circular. The bristles (3), the brush sheets (4) or the brush strips (5) are arranged at intervals and can push garbage or dirty water to the suction port (6) through rotation. The rotation speed of the brush disc (1) is set to not more than 300 revolutions.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA brush head and a vacuum cleaner. The brush head comprises: a connection pipe (1) connected to a negative pressure source at one end and provided with an air suction port at the other end; and a brush head assembly (2) detachably sleeved on the end of the connection pipe (1) provided with the air suction port. The brush head assembly (2) comprises a first brush head (21) and a second brush head (22) respectively disposed at two ends so as to enable different operation modes. The positions of the first brush head (21) and the second brush head (22) can be switched so as to enable the different operation modes of the brush head assembly (2). The brush head has a simple structure and various functions, and is easy to maintain and use. Moreover, the functions of the brush head can be switched by means of detachment, and the process is simple, fast, and convenient for users.\nA: A multi-functional face cleaning instrument, comprising a housing (110), a brush head assembly, a motor (130) and a power supply assembly. The housing (110) is internally provided with the power supply assembly, the motor and a bracket that supports the motor (130). The brush head assembly comprises a brush head (120), brush head brackets (121, 123), and a brush head clamping seat (124); the brush head brackets (121, 123) comprise a brush head upper bracket (121) and a brush head lower bracket (123), the brush head (120) being fixed at an upper surface of the brush head upper bracket (121); the brush head clamping seat (124) comprises a plurality of pawls (1242), and the brush head lower bracket (123) comprises a pawl mounting groove (1244) corresponding to the plurality of pawls (1242); and the pawls (1242) are structures that are wide at the bottom and narrow at the top, and may achieve zero clearance fit with side surfaces of the pawl mounting groove (1244). The motor (130) is a high frequency reciprocating vibration motor (130). The motor (130) cooperates with the brush head assembly, and achieves the objective of highly efficient cleaning while having relatively little noise and providing a user with a good usage experience.\nB: Disclosed are a pet brush having a fur suction function and a method of use thereof, applicable to the field of pet care equipment. The above-mentioned pet brush having a fur suction function comprises a hollow brush head (11) and a hollow handle (12) having one end connected to the brush head (11). The brush head (11) is arranged with a plurality of soft brush posts (13) for combing fur. The pet brush further comprises a suction assembly for suctioning fur, the suction assembly comprising a suction port (14) provided between rows of brush posts (13) and an output port (15) provided at the other end of the handle (12). The suction assembly further comprises a negative pressure source connected to the output port (15). A filter screen for filtering fur is provided between the suction port (14) and the output port (15). The pet brush is simple in structure and convenient to use, can not only comb the fur and prevent the fur being entangled in the brush, but can also prevent the fur from being scattered around indoors, thus ensuring the cleanliness of the environment inside the house.\nC: Disclosed is a water absorption brush head, comprising a brush head housing (1). The brush head housing (1) is provided with a suction passage in communication with a vacuum source to generate a suction flow. The brush head housing (1) comprises a brush head portion (12). The brush head portion (12) is provided with a first scraping strip (2) and a second scraping strip (3). A suction inlet (11) in communication with the suction passage is formed between the first scraping strip (2) and the second scraping strip (3). The first scraping strip (2) and the second scraping strip (3) are formed in such a manner that at least one end thereof protrudes out of a boundary of the brush head portion (12) in the extension direction of a first axis (N). With the water absorption brush head, the proximity of left and right ends of a water brush can be improved, and the total width of the suction inlet is greater than that of the brush head housing, and both sides thereof protrude out of the margin of the brush head housing, so in marginal areas, such as a corner of a wall or a window frame, the scraping strips can be brought into contact with corner areas ahead of the brush head housing, so that the corner areas can be fully cleaned without any blind spots.\nD: Disclosed is a multi-functional makeup brush, comprising a first brush head, a second brush head, a third brush head, a first brush handle, a second brush handle and a third brush handle, wherein the first brush handle and the second brush handle, and the second brush handle and the third brush handle are detachably connected; and a rear end of the first brush handle is provided with a first accommodation cavity for accommodating the second brush head, and a rear end of the second brush handle is provided with a second accommodation cavity for accommodating the third brush head. Each of the brush heads of the makeup brush in the present invention can be independently used, so as to meet the requirements of different makeup scenarios.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA magnetically sealed display case, comprising a transparent display case (1), a display stand (2), a vacuum pump (3), a pneumatic check valve (4), a magnetic base (5), and a controller (6); the magnetic socket (5) is used to seal and connect the transparent display case (1) and the top panel (7) of the display stand; when a visitor observes an antiquity, he or she can use the rotation switch (30) and the stop switch (31) of the controller (6) to control the rotation and stop of the turntable (25) inside the transparent display case; the visitor can enjoy the rotating antiquity, and can also enjoy from any angle the antiquity when it is stationary, satisfying the requirements of a visitor when enjoying an antiquity; the antiquity is also sealed inside the hermetically sealed chamber (8) of the transparent display case (1), and the hermetically sealed chamber (8) is provided with an inert gas to protect the antiquity inside the chamber.\nA: A swaying boat comprising a water tub (1), a boat body (2), a magnetic fluid lifting/lowering apparatus (3), and a controller (4). The magnetic fluid lifting/lowering apparatus (3) is arranged within the water tub (1). The boat body (2) is arranged on the magnetic fluid lifting/lowering apparatus (3). The magnetic fluid lifting/lowering apparatus (3) comprises sealed cylinders (5), pistons (6), piston rods (7), and electromagnetic coils (8). The pistons (6) are arranged within cavities of the sealed cylinders (5). The piston rods (7) are connected to the pistons (6). The piston rods (7) are connected to the boat body (2). The electromagnetic coils (8) are arranged on the outer peripheries of the sealed cylinders (5). The sealed cylinders (5) are provided in the cavities thereof with a magnetic fluid. When in use, people are seated within the swaying boat, the controller is utilized to simulate a state of a boat thrashing in water, while playing and training are carried out on the swaying boat.\nB: A chemiluminescent device comprises a luminous body (1) with a cavity enclosed by a transparent or semitransparent film casing. A part of the luminous body (1) is sheathed in one or more waterproof bags (5), and the opening of each waterproof bag (5) is provided with a separating and sealing device (2). The part of the luminous body (1) in the waterproof bag (5) is separated from the part of the luminous body (1) out of the waterproof bag (5) by the separating and sealing device (2) from the exterior of the waterproof bag (5), two or more sealed drug storage cavities (3) are formed, and each waterproof bag (5), meanwhile, is also sealed as a waterproof protective cavity (8) by the separating and sealing device (2). The corresponding drug storage cavities (3) are sealed in the waterproof protective cavities (8) respectively, and radiant agents (9) and oxidizing agents (10) are respectively contained in the different drug storage cavities (3). Another chemiluminescent device is provided, wherein radiant agents (9) and/or oxidizing agents (10) are respectively sealed in breakable drug storage bags (4) with one or more layers, and the exterior of the breakable drug storage bags (4) are provided with an aluminum foil wrap layer (19) composed of one or more layers of aluminum foil. Furthermore, a chemiluminescent device with an image device is provided, wherein the image device (16) is arranged in the luminous body (1); a sleeving sandwiching film chemiluminescent device is provided, with a shell (27) comprising at least one sandwiched cavity (22), and a film chemiluminescent component (23) is arranged in the sandwiched cavity (22).\nC: A handicraft showcasing apparatus, comprising a transparent cover (1), a connecting mesa (2), a fixing mesa (3), a first limiting mesa (4), a rotating mesa (9), and a mounting box (10). The fixing mesa (3) and the rotating mesa (9) are disk-shaped structures. The rotating mesa (9) is rotatably provided on the fixing mesa (3). The rotating mesa (9) and the fixing mesa (3) are coaxially provided. The rotating mesa (9) is arranged inside the transparent cover (1). The fixing mesa (3) is provided on the mounting box (10). A groove (301) is provided on top of the fixing mesa (3). The groove (301) is an arced groove. A driving structure used for driving the rotating mesa (9) to rotate is provided within the mounting box (10). The transparent cover (1) is a cylindrical structure. A step is provided on the connecting mesa (2). The first limiting mesa (4) is provided on the fixing mesa (3). A first limiting space used for embedding the step is provided between the bottom of the first limiting mesa (4) and the groove bottom of the groove (301). The showcasing apparatus allows the transparent cover to be mounted conveniently, thus implementing protection for a handicraft, and also allows the handicraft to rotate with the rotating mesa (9), thus favoring an observer to appreciate the handicraft from all angles.\nD: An LED beacon rotating device, comprising a rotating LED lamp (1), a magnetofluid suspended lamp base (2), a drive device (3), a rotating power connector (4) and a controller (5); the rotating LED lamp (1) comprises an LED lamp (6), an LED lamp base (7) and a crystal triple prism (8); the magnetofluid suspended lamp base (2) comprises a container (9), magnetofluid (10) and an electromagnetic coil (11); the magnetofluid (10) is disposed inside the container (9); the electromagnetic coil (11) is installed on the container (9); the drive device (3) is fixedly connected to the rotating LED lamp (1); the rotating LED lamp (1) is suspended above the magnetofluid (10) of the magnetofluid suspended lamp base (2); the controller (5) is provided with a control wire connected to the electromagnetic coil (11); the controller (5) enables the electromagnetic coil (11) to generate a magnetic field used for magnetizing the magnetofluid so as to increase the specific gravity of the magnetofluid, as well as the buoyant force of the rotating LED lamp (1) in the magnetofluid (10), so the rotating LED lamp (1) is suspended and rotates in the magnetofluid (10), reducing the rotational friction force of the rotating LED lamp (1), and reducing the driving force for driving the beacon to rotate.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA storage rack system, comprising a cross beam (1), vertical beams (2), supports (3), a rack (4), and position-limiting members (5). The vertical beams (2) are slidably connected to the cross beam (1); the supports (3) are detachably connected to the vertical beams (2); the rack (4) is in contact with upper edges of the supports (3); the position-limiting members (5) are detachably connected to the supports (3) by means of gaskets (51); and the position-limiting members (5) are connected to the supports (3) and can prevent the rack (4) to move relative to the supports (3). The strength of parts of connection between the supports (3) and the vertical beams (2) is enhanced by means of the gaskets (51), and the stability of the supports (3) and the rack (4) is improved by means of the position-limiting members (5), such that the goods bearing capacity of the storage rack system is improved on the whole.\nA: A folding swing seat. A hanging seat is detachably hung on a support; two groups of stand pipes (1) are connected by means of intersecting pipes (2), and the distance between the two groups of stand pipes can be changed by means of the scissor-like opening and closing of the intersecting pipes (2), and the intersecting pipes are fixed to the stand pipes (1) by means of sliders (3) so as to keep the structure stable; support pipes (4) are hinged on the sliders (3), and the bottom ends of the support pipes (4) can be in contact with the ground; stabilization pipes (5) are hinged on the support pipes (4), and the support pipes (4) are restricted by the stabilization pipes (5) from swing with respect to the sliders (3); the bottom ends of the stand pipes (1) and the bottom ends of the support pipes (4) can be in contact with the ground, forming a plurality of support points. The folding and unfolding process of the folding swing seat depend on the sliders (3) sliding along the stand pipes (1), so as to drive the support pipes (4) and the stabilization pipes (5) to move together, and finally the folding swing seat can be folded in a state that the support pipes (4) and the stabilization pipes (5) are kept parallel to the stand pipes (1), and the whole structure is integrally connected without splitting into a plurality of independent parts, thereby facilitating storage.\nB: A shelf device (200) and a support assembly (100). The shelf device (200) comprises a shelf (201), a support (20) and a limiting member (30). The support (20) is detachably arranged at a preset mounting position, the limiting member (30) is mounted on the support (20) and is in conjunction with the shelf (201), and the limiting member (30) prevents the shelf (201) from being separated from the support (20). The shelf device (200) is provided with the limiting member (30) so that the shelf (201) is not easily separated from the support assembly (100), thereby correspondingly avoiding potential safety risks in use of the shelf device (200).\nC: A rotating support position-limiting mechanism, comprising a plate body (1). Rotating rods (2) are hinged onto a surface of the plate body (1), rotating free ends of the rotating rods (2) are connected to a support (3), and mounting seats (4) are sleeved on a rod body of the support (3); detachable position-limiting members (6) are disposed on the surface of the support (3), and the position-limiting members (6) are disposed on side edges of the mounting seats (4) and are attached to the mounting seats (4). According to the rotating support position-limiting mechanism, detachable position-limiting members are disposed on the surface of a support, and the position-limiting members are disposed on side edges of mounting seats and are attached to the mounting seats, thereby achieving a position-limiting effect on the mounting seats, and avoiding the phenomenon in the prior art of collision and interference between a bed board and other objects caused by left and right movement of a support and even avoiding the situation of failure of the support.\nD: A storage rack. The storage rack comprises four upright support columns (1) and several horizontal storage plate frames (2) provided between the four support columns (1), and a storage plate (3) is correspondingly placed above each storage plate frame (2). The storage plate frame (2) comprises two first beams (5) and two second beams (6); providing a horizontal crimping (10) at an edge position of the first beam (5) facilitates improving supporting strength of the first beam (5), and providing a horizontal crimping (14) at an edge position of the second beam (6) facilitates improving supporting strength of the second beam (6); because the supporting strength of the first beam (5) and that of the second beam (6) are improved, the supporting strength of the storage plate frame (2) is improved, and thus the supporting strength of the storage rack is improved. In addition, the support column (1) consists of one or more standing columns (4), and respectively providing an upright crimping (23) at an edge position of each standing column (4) facilitates improving supporting strength of the standing column (4). Moreover, designing the horizontal crimpings (10, 14) and the upright crimpings (23) further improves the supporting strength of the storage rack.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn intelligent mirror, comprising a support portion (10), a mirror surface portion (20) movably connected to the support portion (10), a driving portion (30), and a sensing portion. The driving portion (30) is transmittingly connected to the mirror surface portion (20) to drive the mirror surface portion (20) to move with respect to the support portion (10). The sensing portion obtains the height information of a user in front of the mirror surface portion (20) and the distance information of the user away from the support portion (10), and obtains the movement data of the mirror surface portion (20) according to the height information and the distance information. The driving portion (30) drives, according to the movement data, the mirror surface portion (20) to move so that the whole body of the user is displayed in the mirror surface portion (20). By use of the intelligent mirror, there is no need to adjust the elevation angle, thereby improving use comfort and experience.\nA: Disclosed is an object placing part device, which is connected to a support portion (20). The object placing part device comprises an object placing part (10) capable of moving relative to the support portion (20), a driving mechanism (40) and a sensor unit provided on the object placing part (10) and used for determining whether an object is placed on the object placing part (10), wherein the driving mechanism (40) is in transmission connection with the object placing part (10) to control the object placing part (10) to at least move between a use state and a non-use state; the sensor unit is in signal connection with the driving mechanism (40); and the object placing part (10) is in the use state, and the sensor unit controls the driving mechanism (40) to keep the object placing part (10) in the use state when determining that an object is placed on the object placing part (10). The invention has the advantages of smooth unfolding and folding, being labor saving and being convenient, and the support is stable and reliable.\nB: A multifunctional balance chair, comprising a supporting portion (10), a seat portion (20), and a knee cushion portion (30). The seat portion (20) is movably connected to the supporting portion (10), and an included angle between the seat portion (20) and the horizontal plane can be controlled by means of relative movement of the seat portion (20). The knee cushion portion (30) is movably connected to the seat portion (20), and is connected to the supporting portion (10) by means of a connecting mechanism; linkage is formed by movement of the seat portion (20) and movement of the knee cushion portion (30). When the knee cushion portion (30) is aligned to the position of the seat portion (20), the multifunctional balance chair is in the state of a seating chair, i.e., forming a common stool on the market, a seat of the stool comprising the seat portion (20) and the knee cushion portion (30), such that the area of the seat is increased, and leg placement of a user is protected from interference by a knee cushion. When the knee cushion portion (30) is at a position for forming a balance chair knee cushion, the seat portion (20) of the balance chair is inclined with the inclined surface facing forwards and the knee cushion portion (30) is inclined with the inclined surface facing backwards, and when a user sits on the seat portion (20) with two legs kneeling on the knee cushion portion (30), the balance chair in the state of a balance chair, i.e., forming a common balance chair on the market.\nC: A smart mirror (100) and a control method thereof. The smart mirror (100) comprises a back cover (10); a display module (20) disposed at the back cover (10) and used to display preconfigured information; an illumination module (30) at the back cover (10) and used to emit illumination light; a distance sensing module (40) disposed at the back cover (10) and used to sense a distance to a user located at a target area; a control module (50) disposed at the back cover (10) and electrically connected to all the display module (20), the illumination module (30), and the distance sensing module (40), so as to select, according to the distance sensed by the distance sensing module (40), one of the display module (20) and the illumination module (30) to activate the same; and a display mirror (60) disposed at the back cover (10) and covering only the display module (20). The technical solution employs the distance sensing module (40) to sense a distance to a user located in a target area, and determines, according to the distance, a need of the user, to select one from the display module (20) and the illumination module (30) and activate the same, satisfying an information display requirement, being adaptive to mirror requirements in various ambient illumination, and enhancing user experience.\nD: An autoregulatory bed, comprising: an electronically controlled part (10), a mechanically regulated part (20), and a support part (30). The electronically controlled part (10) is connected to the mechanically regulated part (20); the mechanically regulated part (20) is slidably connected to the support part (30); the support part (30) is partitioned according to a specified amounts; the partitions respectively correspond to specified parts of a human body; the electronically controlled part (10) is used to regulate the heights of specified partitions of the support part (30).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a cup comprising a cup body (12), wherein the cup body (12) comprises a base (121) and a cup wall (122) formed as an extension upwards from the edge of the base (121). A slot (1224) is provided on an outer wall of the cup wall (122) and a thermometer is installed in the slot (1224).\nA: A straw type temperature sensing cup, comprising a cup body and a cup cover (1). The cup cover (1) is provided with an upper cover body (11) and a lower cover body (12) hinged to the upper cover body (11); the lower cover body (12) is provided with a straw, and a cavity (121) is formed in the lower cover body (12); a temperature sensor, a digital display (122), a chip (123), and a battery are provided in the cavity (121); a touch surface cover (13) is provided at the top of the lower cover body (12), and a temperature sensing surface cover (14) is provided at the bottom; a temperature sensor probe is in contact with the temperature sensing surface cover (14). The straw type temperature sensing cup has a temperature display function, and it is easy to clean the bottom of the cover body; moreover, the temperature sensing surface cover (14) has a high melting point and is not easily decomposed at high temperature.\nB: A filter cup, filter paper, and a pour-over coffee pot kit provided with the filter cup and the filter paper. The filter cup (10) comprises a cup body (12). The filter paper (30) can be placed on the inner side of the cup body (12). The cup body (12) comprises an accommodation chamber (123) defined by the inner side wall of the cup body (12) in a surrounding wall, at least one through hole (122) formed in the bottom of the accommodation chamber (123), and a filtering supporting component (124) disposed above the at least one through hole (122) and protruding towards the direction of the direction of the accommodation chamber (123). A connecting channel is disposed between the filtering supporting component (124) and the at least one through hole (122). The filter paper (30) is sleeved on the periphery of the filtering supporting component (124). The filter paper (30) is used for the filter cup (10), and comprises a folded skirt hem (31) formed by means of a folding, a filtering chamber (32) defined by the folded skirt hem (31) in a surrounding manner, and a raised block (33) formed at the bottom of the filtering chamber (32). The raised block (33) is a bump formed by the top of the filter paper (30) and sleeved on the periphery of the filtering supporting component (124). The pour-over coffee pot kit comprises the filter cup (10), the filter paper (30), and a pot body (30) disposed at the bottom end of the filter cup (10). By sleeving the raised block (33) on the periphery of the filtering supporting component (124), the taste is improved.\nC: A cooking cup (100) and a cooking machine (200) using the cooking cup (100). The cooking cup (100) comprises a capacity cup (30) and a cup lid (10) used for covering the capacity cup (30); the capacity cup (30) comprises a cup body (31); a stirring assembly is provided in the cup body (31); the top edge of the cup body (31) protrudes outwards to form at least two flanges (312); the cup lid (10) comprises a roofing (11) used for covering the capacity cup (30) and a lid rim (12) extending downwards from the edge of the roofing (11); the lid rim (12) extends inwards to form at least two pawls (121) snap-fit to the flanges (312) by means of rotating. When the cup lid (10) covers the capacity cup (30), the cup lid (10) is rotated to drive the pawls (121) to move below corresponding flanges (312), so that the flanges (312) and the pawls (121) are hooked to each other. By fixing the cup lid (10) on the capacity cup (30), the cup lid (10) can be prevented from being driven out when the pressure in the capacity cup (30) increases, and the safety is high.\nD: The present invention provides a heating structure (12) for an electronic cigarette (100), the electronic cigarette (100) comprises a battery device (20) which is provided with a positive electrode contact (244) and a negative electrode contact (242), the heating structure (12) comprises a base (121), a fixing seat (122) and a heating element (123), the base (121) is an electrical conductor, the fixing seat (122) is an electrical insulator, the heating element (123) comprises a main body portion (1231) and an extension portion (1232) connected to the main body portion (1231), the extension portion (1232) is provided at least partially in contact with the base (121), the fixing seat (122) is sandwiched between the main body portion (1231) and the base (121), the base (121) is provided with a first through hole (1213), and the fixing seat (122) is provided with a second through hole (1226) corresponding to the first through hole (1213). The heating structure (12) of the present invention saves cartridge (10) space and is easy to assemble. In addition, also provided are a cartridge (10) using the heating structure (12) and an electronic cigarette (100) using the cartridge (10).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe clothes hanger, a fan (41) and a heating element (42) being arranged inside the clothes hanger, a rechargeable power supply (19) for supplying power to the fan (41) and the heating element (42) also being arranged inside the clothes hanger. In the present arrangement, after the clothes hanger is charged, and when the rechargeable power supply (90) has sufficient charge to drive the operation of the fan (41) and the heating element (42), the clothes hanger can be carried around, and when needed for use, the clothes hanger can be taken out, the electric power inside the rechargeable power supply (90) driving the operation of the fan (41) and the heating element (42) to produce wind power to blow dry the clothes; the present invention is convenient to use, facilitates storage and carrying, and greatly facilitates the drying of damp clothes.\nA: An automatic wardrobe (1), comprising a wardrobe body (11), a cavity for hanging clothes being disposed within the wardrobe body, the inside of the wardrobe body (11) being provided with: a clothes hanger (3), a fixing column (321) being disposed on the upper end of the hook of said clothes hanger (3); a first hanging bar (111) for a user to hang up and remove clothes; a moving structure (2), said moving structure (2) having a gripping part (24) able to move within the cavity, said gripping part (24) being provided with a gripping head (242) capable of gripping or releasing the fixing column (321); and a plurality of second hanging bars (4). When the user needs to stow clothes, the clothes can be directly placed on the first hanging rod, and the moving structure drives the gripping part to grip the fixing column of the clothes hanger, and place same on the second hanging bars; the user does not need to personally stow the clothes. When the user needs to remove clothes, the moving structure transfers the clothes hanger of the required clothes from the second hanging rod to the first hanging rod, to be directly removed for use; clothes management is thereby automated.\nB: Disclosed is an automatic clothes storage and drying system, comprising a clothes drying portion (1), a storage portion (3) and a transfer device (2) for transferring clothes. The clothes drying portion (1) comprises a clothesline in a ventilated place or a place exposed to the sun. The storage portion (3) comprises a cabinet in the shade. A transfer portion comprises a track mounted between the clothesline and the cabinet and a transfer rope capable of moving along the clothesline and the track. The transfer rope is provided with a plurality of snap rings for hanging clothes hangers. When needing to dry clothes, a user hangs the clothes, via the clothes hangers, on the snap rings in suitable positions on the clothes drying portion to dry the clothes under the actions of sunlight and air. After the clothes are completely dried, the transfer rope drives the plurality of snap rings to shift towards the storage portion into the cabinet in the shade to prevent the clothes from being overexposed to the sun. When needing to take out clean clothes, the user directly takes out the clothes from the cabinet, omitting the operations of taking the clothes off the clothesline and then storing the clothes in a wardrobe, so that the clothes drying process can also be automated.\nC: A heating assembly and a USB volatilizing device provided with the heating assembly. The USB volatilizing device comprises a base (1), a cover (2), a chemical solution bottle (3), and the heating assembly (4); the base (1) is provided thereon with a USB interface (12) which is connected to a wiring pin (432); the heating assembly (4) comprises a mounting base (41) and a mounting column (42); an accommodating groove (411) is provided between the mounting base (41) and the mounting column (42) and is provided therein with a heating element (43) which comprises a heating wire (431) and the wiring pin (432); the heating wire (431) is wound on the hollow mounting column (42) and has the inner wall being fitted on the mounting column (42); a gap (44) is presented between the outer wall of the heating wire (431) and the inner wall of the mounting base (41). The structure, provided together with a mosquito-repellent liquid or an aromatic liquid as one set, is directly driven to work by a direct current by being inserted into a USB interface of a charger, a computer or a mobile power bank, and has the advantages of having a simple structure and being easy to carry.\nD: A drying rack and subsidiary clothes hangers (1). The drying rack comprises at least two subsidiary clothes hangers (1), wherein a connection tube (2) is provided between the subsidiary clothes hangers (1) to connect same. Each subsidiary clothes hanger (1) is provided with a communicated air inlet (101) and a communicated air outlet (102) which are in communication with each other. Each connection tube (2) is connected to the communicated air outlet (102) of the previous subsidiary clothes hanger (1) and the communicated air inlet (101) of the next subsidiary clothes hanger (1). An air supply device (3) is provided at the communicated air inlet (101) or the communicated air outlet (102) of the subsidiary clothes hanger (1) at the outermost end of the drying rack. The drying rack (1) is further provided with a clothes drying air outlet (28) which is in communication with the communicated air inlets (101) and the communicated air outlets (102). Each subsidiary clothes hanger (1) is provided with the communicated air inlet (101) and the communicated air outlet (102) which are in communication with each other, and the subsidiary clothes hanger (1) is further provided with the clothes drying air outlet (28) which is in communication with the communicated air inlets (101) and the communicated air outlets (102). In this way, air would to be blown to clothes hanging at the clothes drying air outlets (28) on the subsidiary clothes hangers (1), thereby quickly air-drying clothes hanging on the subsidiary clothes hangers (1).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA smart cup, comprising a cavity (1) for containing water. A pressure sensor (11), a processor (14) and a power module (15) are provided at the bottom of the cavity (1); a water level sensor (12) and a water quality detection device (13) are provided on the inner side wall of the cavity (1); the pressure sensor (11), the water level sensor (12), the water quality detection device (13) and the processor (14) are separately connected to the power module (15); the pressure sensor (11), the water level sensor (12) and the water quality detection device (13) are separately connected to the processor (14). The water quality detection device (13) is provided on the inner side wall of the cavity (1) of the smart cup and used for detecting the oxygen content of water in the cavity (1) so as to accurately detect the water quality; the pressure sensor (11) at the bottom of the cavity (1) of the smart cup and the water level sensor (12) on the inner side wall of the cavity (1) acquire related data and send the data to the processor (14) to cooperatively calculate the amount of water a user drinks. The smart cup has high intelligence.\nA: A smart geological monitoring base station, comprising a base (1), a monitoring box (2) being provided on the base, and a battery cavity (5), a circuit cavity (4) and a communications cavity (3) being provided in the monitoring box (2); a monitoring circuit is provided in the circuit cavity (4), the monitoring circuit comprising a main controller, and a wind speed sensor (7), a water level sensor (9) and a communications device, each having a signal connection to the main controller; the wind speed sensor (7) is provided on top of the monitoring box (2), and the water level sensor (9) is provided on the base (1); a rechargeable battery is provided in the battery cavity (5), the rechargeable battery being used to supply power to the monitoring circuit; the communications device comprises an antenna, the antenna being provided in the communications cavity (3); smart monitoring can be realized by connecting to a communications system, making monitoring convenient, simple and effective, and decreasing losses from natural disasters.\nB: A smart seat (51) capable of monitoring weight, temperature and water quality, and a base structure facilitating barreled water taking and placing. The smart seat (51) comprises a smart seat body (10), a water quality sensor (40), a pressure sensor (30), a temperature sensor, double water ports and a main control board (20); the pressure sensor (30) is provided at the bottom of the smart seat body (10) for sensing the weight of the smart seat body (10) and the liquid inside, and transmitting same to the main control board (20); the water quality sensor (40) and the temperature sensor are provided at positions below the liquid level inside the smart seat body (10) for sensing the water quality state and temperature, and transmitting same to the main control board (20); and the main control board (20) processes the sensed weight information and water quality information. The base structure comprises: a foundation (60) and a base (50) sliding relative to the foundation (60), the base (50) has a top side on which the smart seat (51) is provided, and an edge side or a bottom side on which a base sliding member (53) is provided, a foundation sliding member (61) is provided on the foundation (60) at a position corresponding to the base sliding member (53), and the foundation sliding member (61) and the base sliding member (53) slide in a fitted manner.\nC: A smart cup, comprising a cup body (110), a cup cover (120), a light sensor (130) and a main board (140), wherein the cup cover (120) is arranged on the cup body (110), the light sensor (130) is arranged on the cup body (110) and is covered by the cup cover (120), the light sensor (130) can be exposed by opening the cup cover (120), the main board (140) is arranged at the bottom part of the cup body (110) and is isolated from an inner cavity of the cup body (110), the main board (140) is provided with a main processor (141) and a gravitational accelerometer (142), and the light sensor (130) and the gravitational accelerometer (142) are both connected to the main processor (141). The smart cup can measure a drinking amount in real time and has no need to wait until the smart cup is in a static steady state, and a measuring element is not in contact with drinking water, so the measurement is safe and sanitary.\nD: A water quality monitoring device based on a microbial fuel cell, relating to the technical field of water quality monitoring. A storage battery module is provided in a main machine body (4) to provide power. The main machine body (4) can move in a water environment to detect the water quality of different areas in the water environment. An integrated sensor module (3) and a microbial fuel cell module are provided on the main machine body (4). The integrated sensor module (3) collects a pH value in the water environment. The microbial fuel cell module continuously and stably charges the storage battery module by means of sliding mode control, and collects data of current that is generated in the water environment and changes with time, wherein the data of the current changing with time is used for determining a heavy metal pollution status of the water environment. The water quality monitoring device combines a microbial fuel cell with a water quality monitoring system, improves the quality of water resources, and can also provide stable power supply for a long time to realize long-term real-time monitoring of water quality. The device has large technology and market development space, and has remarkable social benefits, economic benefits and environmental benefits.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA household vertical type food mixing machine, comprising a body (402), and a motor (404) horizontally arranged in the body (402). The household vertical type food mixing machine further comprises: a main shaft (411) rotatably arranged on the body (402), the front end of a central shaft (405) of the motor (404) being connected to the main shaft (411) via a transmission (406); a front output shaft (413) rotatably arranged on the body (402), a first front bevel gear (412) being fixedly arranged on the upper end of the main shaft (411) and a second front bevel gear (414) meshed to the first front bevel gear (412) being fixedly arranged on the front output shaft (413); and a rear output shaft (417) rotatably arranged on the body (402), a first rear bevel gear (416) being fixed on the rear end of the central shaft (405) of the motor (404) and a second rear bevel gear (419) for meshing to the first rear bevel gear (416) being arranged on the rear output shaft (417). The household vertical type food mixing machine is able to achieve a variety of food processing methods, provides multiple purposes with a single machine, and is safe and easy to operate.\nA: A robot comprises a machine body (1), and a motor (2), a transmission system (3), and a traveling mechanism (4) disposed on the machine body. The transmission system comprises an output shaft gear (5) connected to a motor output shaft (20), a main gear (6) connected to the output shaft gear, a rotating shaft (7) disposed on the main gear, and two eccentric components (8) sleeved on the rotating shaft and respectively disposed at two ends (71, 72) of the rotating shaft, wherein the two eccentric components have central symmetry about an intersection point of the main gear and the rotating shaft. The traveling mechanism comprises a first connection rod (41), a second connection rod (42), and a third connection rod (43). One end (411) of the first connection rod is connected to the eccentric components, and the other end (412) thereof is rotatably connected to an upper end (421) of the second connection rod. One end (431) of the third connection rod is rotatably connected to the machine body, and the other end (432) thereof is rotatably connected to the upper end of the second connection rod. Rotation of the eccentric components drives the first connection rod, the second connection rod, and the third connection rod to perform a linked movement. The structure combines in a flexible manner, has structural sturdiness, and is used to mimic a knee-lifting movement of a walking human to form a simulated movement path equivalent to that of a human leg. The robot mimics a kinetic structure of a human, is useful in robotic education and studies for youths and as a toy for kids, and has a simple structure and a low cost.\nB: A walking robot (100), comprising a robot body (1), and a motor (2), a transmission system (3) and a walking mechanism (4) provided on the robot body (1). The transmission system (3) comprises an output shaft gear (5) connected to an output shaft (20) of the motor (2), a main gear (6) connected to the output shaft gear (5), a rotating shaft (7) provided on the main gear (6), and two eccentric members (8) provided on the rotating shaft (7) in a penetrating manner and respectively provided at two ends (71, 72) of the rotating shaft (7). The walking mechanism (4) comprises a first connecting rod (41), a second connecting rod (42), and a third connecting rod (43); one end (411) of the first connecting rod (41) is connected to the eccentric member (8), and the other end (412) is rotatably connected to the upper end (421) of the second connecting rod (42); one end (431) of the third connecting rod (43) is rotatably connected to the robot body (1), and the other end is rotatably connected to the upper end (421) of the second connecting rod (42). The robot is provided with a limiting device (10), and the limiting device (10) is provided on the robot body (1) and the walking mechanism (4) so that the first connecting rod (41) is lifted to a set height.\nC: A lawn mower, comprising a machine body (10), a mowing mechanism (20) and a control mechanism (40); the mowing mechanism (20) is disposed in a space at the lower part of the machine body (10); the control mechanism (40) comprises at least one control rod (42) and at least one control main body (41); the control rod (42) is provided with a high end part (421) and a low end part (422) corresponding to the high end part (421); the control main body (41) comprises a mounting seat (411) and a pivoting seat (412) which is rotatably disposed on the mounting seat (411); the mounting seat (411) is provided on the machine body (10); and the low end part (422) of the control rod (42) is mounted on the pivoting seat (412). When the high end part (421) of the control rod (42) swings back and forth, the low end part (422) of the control rod (42) drives the pivoting seat (412) to rotate relative to the mounting seat (411), so that the travel direction and travel speed of the lawnmower may be controlled such that a user may conveniently control the lawnmower. The control mechanism comprises: the control rod (42), the control rod (42) being provided with the high end part (421) and the low end part (422) corresponding to the high end part (421); and the control main body (41), the control main body (41) comprising the mounting seat (411) and the pivoting seat (412) which is rotatably disposed on the mounting seat (411), and the low end part (422) of the control rod (42) being mounted on the pivoting seat (412). When the high end part (421) of the control rod (42) swings back and forth, the low end part (422) of the control rod (42) drives the pivoting seat (412) to rotate relative to the mounting seat (411), so that the maximum forward travel speed and maximum reverse travel speed of the lawnmower may be controlled, thereby ensuring the safety of the lawnmower and facilitating a user controlling the lawnmower.\nD: Disclosed is a blender (10). The blender (10) comprises: a first drive shaft (1), a second drive shaft (2), a drive member (3) and a transmission device (4). The transmission device (4) comprises: a first bevel gear (41), a second bevel gear (42), a third bevel gear (43) and a holding bracket (44), wherein the second bevel gear (42) is connected to the second drive shaft (2); the first bevel gear (41) and the second bevel gear (42) are arranged in an axially opposite manner; the third bevel gear (43) is engaged between the first bevel gear (41) and the second bevel gear (42); the third bevel gear (43) is rotatably arranged at the holding bracket (44); the holding bracket (44) is rotatably arranged at the second drive shaft (2); and the third bevel gear (43) selectively rotates or revolves. The blender has the effects of crushing with a cutter head and cutting food materials in an improved manner.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a detachable pan handle, comprising a handle body (2) and a plug (3), with the plug (3) being fixed to a pan (1). The pan handle further comprises a detachable assembly. The detachable assembly comprises a locking button (4), a latch (5), an opening button (6) and a fixing frame (7). A plug holding cavity for the plug (3) to be inserted into and an open slot for mounting the fixing frame (7) are provided at a front end of the handle body (2), the open slot is located above the plug holding cavity, and the front of the open slot is in communication with the rear of the plug holding cavity. The locking button (4) is located above the plug (3), and the latch (5) and the opening button (6) are both located behind the locking button (4).\nA: A dual-use hedge trimmer comprising a main body (1), a power switch (2) having a power switch button (2.1), and linked switches arranged on the main body and capable of pressing the power switch button when being pressed simultaneously. The main body is connected to a first insertion sleeve (8.1). The dual-use hedge trimmer also comprises a first power connector (3) inserted into the first insertion sleeve and connected to an internal circuit, and a second power connector (4) inserted into the first insertion sleeve, connected to the internal circuit, and for use in pressing directly the power switch button. The first power connector is connected to a first power plug (15). The second power connector is connected to a high branch rod (5). The high branch rod is connected to a high branch rod handle (6) for use in connecting or disconnecting power. The high branch rod handle is provided with a second insertion sleeve (6.1) for use in insertion therein of the first power connector and for allowing the first power connector to connect to an internal circuit of the high branch rod handle, or, the high branch rod handle is connected to a second power plug (16). The dual-use hedge trimmer is capable of meeting simultaneously the requirements for a regular hedge trimmer and for a high branch hedge trimmer.\nB: A connection structure for a detachable handle comprises a handle (1), a connector (2) fitted and connected to one end portion of the handle (1), and buttons (3) movably connected to two sides of the handle (1). A button receptacle (11) is arranged at each of the two sides of the handle (1). A slot (12) is arranged at the end portion of the handle (1). An abutment block (13) is provided inside the slot (12) and connected to the handle (1). A lock hole (24) is arranged at the center of the connector (2). One side of the connector (2) is positioned inside the slot (12) and connected to a lock block (21). A recess (23) is arranged at the center of the lock block (21). A supporting board (22) is connected to a surface of the lock block (21). The button (3) is positioned inside the button receptacle (11), and a spring is connected between the button (3) and the handle (1). An end portion of the button (3) is connected to an engagement block (31) fitting an engagement recess (211). The connection structure for a detachable handle enables a user to quickly install or remove a handle (1) for usage, thereby effectively enhancing convenience of installing or removing the handle (1). The invention also solves the problem in which an engagement block (31) is likely to separate from an engagement recess (211) after the handle (1) has been assembled for usage, thereby ensuring safe usage for a user.\nC: A pet traction device (100), comprising a handheld grip (20) and a handle rope (10), wherein one end of the handle rope (10) is fixedly connected to the handheld grip (20), and the handheld grip (20) is provided with a lock catch (21), an unlocking button (22) and an insertion groove (23); the other end of the handle rope (10) is provided with an insertion piece (11), and the insertion piece (11) is detachably inserted into the insertion groove (23); the lock catch (21) is configured to lock the insertion piece (11), and the unlocking button (22) is configured to unlock the insertion piece (11) and the lock catch (21). After a user presses down the unlocking button, the handle rope may be rapidly open, then the handle rope surrounds a cylindrical object, the insertion piece is inserted into the insertion groove, and finally the lock catch is used for locking the insertion piece. Therefore, a pet may be fastened to the periphery of the cylindrical object and move about so that a user does not need to waste time and labor restraining the pet in real time.\nD: A liquid hand wash container comprises an outer casing (1), a rear casing (2), a liquid storage bottle (3), a liquid discharging pump (4), a pressing piece (5), a pressing base (6), a thrust arc piece (7) and a pressing rod component (8). The outer casing (1) and rear casing (2) are connected via a fastener to form an accommodating space, and the liquid storage bottle (3), liquid discharging pump (4), pressing base (6) and pressing rod component (8) are all disposed in the accommodating space. The liquid storage bottle (3), liquid discharging pump (4) and pressing rod component (8) are all fixedly disposed on the rear casing (2). An upper side of the liquid discharging pump (4) is connected to the liquid storage bottle (3) via a liquid discharging tube, and a lower side of the liquid discharging pump (4) is movably connected to the pressing base (6). A bottom portion of a front cover plate of the outer casing (1) is provided with an opening, and the pressing piece (5) is correspondingly disposed at the opening and is movably connected to the outer casing (1). An end of the thrust arc piece (7) is fixedly connected to the pressing piece (5), and the other end of the thrust arc piece (7) presses against the pressing rod component (8). The pressing rod component (8) is disposed below the pressing base (6), and presses against a bottom portion of the pressing base (6). The liquid hand wash container achieves highly efficient and labor-saving press-type liquid dispensing.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA dual-headed hand washing device having an anti-leak function, comprising liquid storage bottles (10), the tops of which are provided with liquid outlet holes (12) and air inlet holes (13), one-way inlet valves (14) being provided in the air inlet holes (13); a device head (20), connectedly affixed to the liquid storage bottles (10), and comprising a housing (21), the housing (21) being provided with two water outlets; a switch (51), arranged on the device head (20); sensors (70), arranged on a surface of the housing (21); a control circuit board (50), arranged inside the housing (21) and connected to the switch (51) and the sensors (70); micro-pumps (30), arranged inside the housing (21), connected to the control circuit board (50), and extending into the liquid storage bottles (10) by means of the liquid outlet holes (12); liquid extraction tubes (31), connected in one-to-one correspondence with the micro-pumps (30); and liquid outlet channels (40), arranged in between the micro-pumps (30) and the water outlets, there being two liquid outlet channels (40), and at least one liquid outlet channel (40) being provided with an atomizing nozzle (41). The provision of one-way inlet valves (14) in the air inlet holes (13) of the liquid storage bottles (10) of the present dual hand washing device prevents liquid in the liquid storage bottles (10) from leaking out from the air inlet holes (13) even if the hand washing device should fall over, thus preventing waste, and at the same time, preventing the liquid from corroding internal elements of the device head (20) and staining the exterior of the hand washing device.\nA: A beauty instrument capable of guiding eye cream cleanly and hygienically, the beauty instrument comprising a main machine (1), a cover (3) covering the main machine (1), and a liquid storage bottle (2) connected to the main machine (1) and providing an eye cream liquid for the main machine (1). The main machine (1) comprises a machine body (11), a working portion (12) arranged at the top of the machine body (11), and a liquid conveying channel (13) in communication with the working portion (12); and a long guide pipe (21) is arranged at the top of the liquid storage bottle (2), the long guide pipe (21) is inserted into the liquid conveying channel (13) in a sleeved manner, and a liquid outlet I (21a) formed in the top of the long guide pipe (21) passes through the liquid conveying channel (13) directly to the working portion (12). The liquid outlet I (21a) of the long guide pipe (21) is in direct communication with a liquid outlet II (12a) of the working portion (12) of the main machine (1) of the beauty instrument, such that the eye cream can be directly conveyed to the working portion (12), thereby preventing the eye cream from contamination and deterioration after being left in the liquid conveying channel (13) in the middle, maintaining the cleanliness and hygiene of the whole beauty instrument during use and after use, and guaranteeing the action effect of the eye cream.\nB: An atomizing nozzle (41) and a sensitive hand washing machine. The atomizing nozzle comprises: a water outlet member (100), a water outlet cavity (110) being provided on the water outlet member (100); a water outlet hole (120) provided at the bottom of the water outlet cavity (110); cyclone grooves (130) provided at the bottom of the water outlet cavity (110), the cyclone grooves (130) extending from the water outlet hole (120) to the side wall of the water outlet member (100), there being a plurality of cyclone grooves (130), and the cyclone grooves (130) being arranged clockwise or counterclockwise around the water outlet hole (120); and a blocking member (200) fixed in the water outlet cavity (110), a gap for liquid inlet being provided between the blocking member (200) and the side wall of the water outlet cavity (110). After the water outlet member (100) and the blocking member (200) are combined, liquid enters from the gap, passes through the cyclone grooves (130) and arrives at the water outlet hole (120) to be sprayed out, the liquid flows in the plurality of cyclone grooves (130) to form an effect of rotation, and naturally forms a mist spreading all around when sprayed out. The atomizing nozzle (41) of the present solution has the advantages of a simple structure, low production costs, and convenient assembly. The sensitive hand washing machine realizes atomization and spraying of liquid by means of the atomizing nozzle (41), without providing gear transmission, and has advantages in aspects such as volume, costs, production efficiency, etc.\nC: Provided is a fragrance-spreading device, comprising an air pump (3), an atomizing head (2) and a liquid storage bottle (1). The atomizing head (2) is connected with the air pump (3) and the liquid storage bottle (1), the atomizing head (2) is internally provided with an atomizing cavity (20), and the atomizing head (2) is internally provided with an air channel (21) and a liquid channel (22); one end of the air channel (21) is in communication with the air pump (3) through a vent pipeline (31), the other end thereof is shrunk to form an air outlet opening (211); one end of the liquid channel (22) is in communication with the interior of the liquid storage bottle (1) through a liquid suction pipe (11), the other end thereof is shrunk to form a liquid outlet opening (221); the air outlet opening (211) is located on one side of the liquid outlet opening (221), and blows from one side of the liquid outlet opening (221) to the other side of the liquid outlet opening (221); the atomizing cavity (20) is in communication with the air outlet opening (211) and the liquid outlet opening (221); and the atomizing head (2) is also provided with a mist outlet opening (201) communicating with the atomizing cavity (20). The fragrance-spreading device is easy to manufacture, atomized particles of the essential oil are fine and smooth, and blocking does not tend to occur.\nD: Disclosed is an atomizer (100). The atomizer comprises an e-liquid storage assembly (10) and an atomization assembly (30). The e-liquid storage assembly (10) is internally provided with an e-liquid storage cavity (13) and a vapor discharge channel (121) separated from each other; and the atomization assembly (30) comprises an atomization housing (31), an atomization cavity (213) is formed in the atomization housing (31), the atomization housing is provided with a vapor passing hole (3121) and an e-liquid intake channel (3131), the vapor passing hole (3121) and the e-liquid intake channel (3131) are both in communication with the atomization cavity, an e-liquid intake end of the e-liquid intake channel (3131) is in communication with the e-liquid storage cavity (13), a vapor discharge end of the vapor passing hole (3121) is in communication with the vapor discharge channel (121), and at least one sealing step (315) is provided between the e-liquid intake end of the e-liquid intake channel (3131) and the vapor discharge end of the vapor passing hole (3121). In the atomizer, at least one sealing step (315) is arranged between the e-liquid intake end of the e-liquid intake channel (3131) and the vapor discharge end of the vapor passing hole (3121), such that an aerosol forming substrate in the e-liquid storage cavity (13) that flows through the e-liquid intake end of the e-liquid intake channel (3131) is prevented from flowing into the atomizer (100) by means of the vapor discharge end of the vapor passing hole (3121), the atomizer (100) is prevented from leaking e-liquid, and the user experience is improved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a blowing/drawing-in device, which can work under a blowing mode or a drawing-in mode and comprises a housing (14) which has a first opening (12) in communication with the exterior; an air duct (2) which is connected to the housing (14); an air flow generation device, which can generate an air flow in an operable manner, the air flow being blown out via the air duct (2) when the blowing/drawing-in device is under a blowing mode and the air flow being drawn in via the air duct (2) when the blowing/drawing-in device is under a drawing-in mode; and a collection device (200) used for collecting the drawn-in item when the blowing/drawing-in device is under the drawing-in mode, the collection device (200) being connected to the first opening (12) both under the blowing mode and the drawing-in mode. The blowing/drawing-in device also comprises an air inlet part (202), the air inlet part (202) is opened under the blowing mode and the air inlet part (202) is closed under the drawing-in mode.\nA: An air blower comprising: a housing (200), where an air inlet (203) is provided on the housing (200) and air is introduced via the air inlet (203); a motor (300) arranged within the housing (200); an axial flow fan driven by the motor (300) to rotate around a fan axis and to produce an airflow; an air blowing pipe (422) connected to the housing (200) and provided with an air outlet (601), where the airflow is blown out from the air outlet (601); and a duct (400) used for guiding the airflow to move towards the air outlet (601). An airflow channel (602) is provided within the housing (200) and the air blowing pipe (422). The airflow channel (602) comprises an upstream area(201) between the air inlet (203) and the axial flow fan and a downstream area (202) between the axial flow fan and the air outlet. The motor (300) is provided in the upstream area (201). The duct (400) is provided in the downstream area (202).\nB: A robot, a robot system, a dust bin (4), and a control method. The robot comprises a body (2) provided with a suction port (3) and a dust bin (4), the suction port (3) being communicated with the dust bin (4). The dust bin (4) is provided with a plurality of dust discharge ports (6) and a dust inlet port (5) communicated with the suction port (3). When the body (2) is in a first operation mode, the plurality of dust discharge ports (6) is closed, and a substance on a surface where the body (2) is located is collected into the dust bin (4) through the suction port (5); and when the body (2) is in a second operation mode, the plurality of dust discharge ports (6) cooperates to discharge the stored substance in the dust pin (4) under the action of a suction airstream. The present invention is used for effectively reducing the amount of residual dust in the dust bin (4).\nC: An atomization device supporting multiple smoking modes and a using method therefor. The atomization device comprises the following components: a main machine casing (7), a main frame (2), an upper end cover (1), an atomizer (5) disposed on a base (211) of the atomizer, and a lower end cover (4). The atomization device supports three smoking modes, and the smoking modes and airflow channels can be switched synchronously; an accurate aroma production temperature control under low-baking is achieved, cigarettes are fully used, and a great comfort of smoking is provided. Further provided is a using method for the atomization device.\nD: An intelligent mower (100). The intelligent mower moves and works in a working region, and comprises: a housing (10); a moving module (30) mounted in the housing and driving the housing to move; a cutting module (12) mounted in the housing and used for cutting grass in the working region; a crushing module (14) mounted in the housing, and capable of collecting fallen leaves in the working region and crushing same; and a control module that is electrically connected to the moving module, the cutting module, and the crushing module, and controls the intelligent mower to move and work. The intelligent mower has a first working mode, wherein under the first working mode, the control module controls the cutting module to perform working; and a second working mode, wherein under the second working mode, the control module controls the crushing module to perform working. The intelligent mower has the advantageous effects of: comprising a leave crushing component and having the function of treating fallen leaves.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA safety rope structure (100) for a window cleaning robot and a window cleaning robot. The safety rope structure (100) for a window cleaning robot comprises a safety rope, a safety rope fixing mechanism (10) for fixing the safety rope, and a locking mechanism (20). The safety rope fixing mechanism (10) comprises a rope passing hole assembly (11) for the safety rope to pass through, a fixing frame (13), and a locking sheet (12) having one end provided in the interior of the rope passing hole assembly (11) for fixing the safety rope and having the other end engaged with the fixing frame (13); the locking mechanism (20) comprises a locking knob (21), a locking seat (22) fixedly connected to the locking knob (21), and a locking pin (23) passing through the locking seat (22) and plugged to the locking sheet (12). By means of the structural design of mutual engagement and plugging connection between the locking mechanism (20) and the safety rope fixing mechanism (10), the safety rope fixing mechanism (10) is locked on a window cleaning robot body (31), such that the window cleaning robot can safely perform cleaning working, and the risk of dropping or falling of the window cleaning robot is eliminated.\nA: A valve clamping device (100) having a locking mechanism (80), and a valve repairing system. The valve clamping device (100) comprises a fixed base (20), at least one pair of clamp arms (40), a drive assembly (70) and a locking mechanism (80), the at least one pair of clamp arms (40) being connected to the fixed base (20) and being able to be open and closed relative to the fixed base (20); the drive assembly (70) comprises a drive shaft (72) movably inserted into the fixed base (20), the drive shaft (72) moves axially to drive the clamp arms (40) to be open and closed relative to the fixed base (20), and a positioning portion (720) is provided on the outer peripheral surface of the drive shaft (72); and the locking mechanism (80) comprises a locking member (82) and an abutting and pushing member (84), a locking hole (820) is provided axially in the locking member (82), the drive shaft (72) passes through the locking hole (820), and the abutting and pushing member (84) abuts against the locking member (82) and is provided obliquely in the fixed base (20), so that an edge (281) of the locking hole (820) is snap-fitted with the positioning portion (720). The locking mechanism (80) can increase a friction force and a mechanical engagement force between the drive shaft (72) and the locking member (82), and prevent the edge (281) of the locking hole of the locking member (82) from being locally stressed and wearing, improving the anti-fatigue performance of the valve clamping device (100), improving the locking stability, and preventing locking failure.\nB: Disclosed are a quick disassembly device for a safety rope and a stage lamp using same. The quick disassembly device is used for mounting the safety rope (6) on or disassembling the safety rope from a mounting fixed structure (30) and comprises a fixed device and a mounting and disassembling structure used for connecting the safety rope (6). The mounting and disassembling structure is provided with a first through hole (11) and a second through hole (12) being in communication with each other and elastic, wherein the size of the first through hole (11) is smaller than the size of the second through hole (12), and the first through hole (11) or the second through hole (12) is provided with an opening (13) penetrating through the edge of the mounting and disassembling structure. The fixed device is provided on the mounting fixed structure (30) and can penetrate into the through hole. The mounting and disassembling structure is moved such that the fixed device is located in the first through hole (11) or the second through hole (12) to mount the safety rope (6) on or disassemble the safety rope from the mounting fixed structure. The mounting and disassembling structure is sheathed on the fixed device through the second through hole (12), and the mounting and disassembling structure is moved by means of elasticity of an elastic structure such that the fixed device penetrates through a position where the first through hole (11) and the second through hole (12) are communicated and enters the first through hole (11) or the second through hole (12) to achieve mounting and disassembling of the safety rope (6).\nC: A fully automatic window cleaning robot, comprising a substrate (11); walking devices (2) are provided at two sides of the substrate (11) in a cleaning direction; and two cleaning modules (3) are symmetrically provided on one side of the substrate (11) facing a working surface; each of the cleaning modules (3) comprises a support plate (31), a back plate (32) being fixedly mounted on a side edge of the support plate (31), and one end of a link net (33) being fixedly connected to an inner side of the back plate (32). The link net (33) comprises a set of cylinders (331), the ends of each two adjacent cylinders (331) are rotatably connected to each other by means of a rotating plate (332), a cleaning cloth (51) is fixedly connected to the side of the link net (33) facing away from the support plate (31), and a pressure sensor (53) embedded and mounted on the cylinder (331) is provided on the side of each cylinder (331) connected to the cleaning cloth (51). The distance between the two cleaning modules (3) is adjusted by means of an adjustment device (6). The link net (33) on which the cleaning cloth (51) is mounted is pressed, by means of a pressing plate (72), to be attached to a right-angle surface formed by a window frame (100) and a glass (200), so that a corner can be cleaned thoroughly. The position of the pressing plate (72) is adjustable, so that cleaning can be performed on windows having different sizes, improving the cleaning efficiency.\nD: A support unlocking structure (100), comprising a head holder adaptation mechanism (110) and a clamping mechanism (120); the head holder adaptation mechanism (110) comprises an adaptation assembly (112) connected to a head holder mechanism (510) and a mounting plate (111) on which the adaptation assembly (112) is mounted; the clamping mechanism (120) is arranged on a head holder fixing mechanism (200) and clamps the mounting plate (111), the clamping mechanism (120) has an unlocking state and a locking state; when a drag force applied to the head holder adaptation mechanism (110) exceeds a threshold of the clamping mechanism (120), the clamping mechanism (120) is in the unlocking state, and the mounting plate (111) can move relative to the clamping mechanism (120), and when the clamping mechanism (120) is in the locking state, the mounting plate (111) is fixed in the clamping mechanism (120). When an accident occurs, the clamping mechanism (120) automatically unlocks the mounting plate (111) under the effect of a drag force of the head holder mechanism (510), the position of the head holder mechanism (510) is no longer fixed, and the head holder mechanism can sink along with a surgical bed system (500), preventing a patient (600) from being harmed, and achieving the effect of safety protection. Further disclosed are a joint locking mechanism (140), a head holder fixing mechanism (200) and a surgery assisting robot system.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA rotary snap-fit mechanism (9) for use inside an endoscope handle and an endoscope (100). The rotary snap-fit mechanism (9) comprises a snap-fit support (90); a snap-fit structure (96) is provided inside the snap-fit support (90); the snap-fit structure (96) comprises a snap-fit handle (97) and a snap-fit notch connecting handle (98) provided at a lower end portion of a handle housing (4). When in use, the snap-fit handle (97) is located at a position corresponding to the snap-fit notch connecting handle (98), and then is pressed hard to drive a snap-fit cone (92) on the snap-fit handle (97) to be placed inside a snap-fit notch accommodating cylinder (94) on a connecting handle rod (93), and then is rotated by an angle, so that the snap-fit can reach an installation position. After the use is completed, the snap-fit handle (97) is rotated in the opposite direction, and then is pulled out to achieve the purpose of disassembly. The contaminated endoscope part is discarded, and the uncontaminated endoscope part can be reused, avoiding the case in the prior art in which both the contaminated and uncontaminated endoscope parts are discarded, thereby reducing the usage cost, saving materials, and having the effect of being easily installed and disassembled.\nA: The present application relates to the field of electronic devices. Disclosed are a handle and an electronic device. The handle comprises a body, a button component, and a resetting element. The body is provided with a cavity and an opening. The button component is rotatably mounted in the cavity and is movable in the axial direction of the opening; the button component partly protrudes from the opening. The resetting element is connected respectively to the button component and to the body. Either the inner wall of the cavity or the sidewall of the button component facing the inner wall is provided with multiple engaging grooves distributed in the direction of rotation of the button component, the other is provided with at least one engaging member, and the engaging member limitingly fits into the engaging grooves. When the engaging member is located at a first position, the resetting element is in a first state, the engaging grooves are separated from the engaging member, and the button component is rotatable relative to the body; when the engaging member is located at a second position, the resetting element is in a second state, the engaging grooves are engaged with the engaging member, and the button component is fixed relative to the body.\nB: The present invention provides an endoscope handle, an endoscope, and an endoscope system. The endoscope system comprises an endoscope, an image processor, and a display, wherein the endoscope is in communication connection with the image processor by means of a cable; and the image processor is in communication connection with the display. The endoscope comprises a handle body, a wire outlet used for leading out an external cable is provided in the handle body, the handle body is provided with a holding area, and the wire outlet is provided in the side of the holding area facing a distal end of the handle body. The present invention has the advantages of alleviating the burden of a user when the user holds the endoscope handle, improving the holding stability, reducing the routing difficulty of an internal signal wire, and increasing the quality of image signal transmission.\nC: Provided is a connecting structure for connecting a head assembly (2) and a handle portion (1) of a vibrating electric cleaning device, the cleaning device includes the handle portion (1) and the head assembly (2) detachably mounted on the handle portion (1), the handle portion (1) includes a handle housing (11) with a hollow portion at the rear end and a vibration shaft (3), the head assembly (2) includes a cleaning element (21) and a brush handle housing (22) with a handle interface (111) on the top of the front end, the handle interface (111) and the vibration shaft (3) are accommodated in the hollow portion, a blind hole (114) is provided in the middle of the handle interface (111), the rear end of the vibration shaft (3) is tightly inserted into the blind hole (114); a buckle cavity (113) is provided on the handle interface (111), the front end surface of the buckle cavity (113) is a buckle locking surface (112) of the handle interface (111); a buckle combination part including a buckle cantilever (24) and a buckle protrusion (29) is provided in the brush handle housing (22) along its rear end, the buckle cantilever (24) is formed in the brush handle housing (22) and is separated from the brush handle housing (22), the rear end of the buckle cantilever (24) is provided with the buckle protrusion (29), a locking surface (23) of the buckle combination part is provided on the buckle protrusion (29), the buckle protrusion (29) is accommodated by the buckle cavity (113) of the handle interface (111).\nD: A buckle self-locking metal jump rope, comprising a jump rope (10) and handles (20) connected to two ends of the jump rope (10), wherein locking devices (30) are provided between the jump rope (10) and each handle (20), a rotating device (40) is provided between each locking device (30) and each handle (20), each locking device (30) comprises an inner member (31), the inner members (31) are U-shaped groove structures the top parts of which are open, two sides of each inner member (31) is provided with buckles (32), and the inner members (31) are in hinged connection with the middle part of the buckles (32); the inner side of each buckle (32) is provided with a guide rod (324) close to the bottom end, and a spring (325) is sleeved on each guide rod (324); two ends of the springs (325) abut against the buckles (32) and the inner members (31), respectively; and the top part of each buckle (32) extends to form a bending part (323) close to the inner side, the tail ends of the jump rope (10) are provided with connecting heads (33), and two sides of each connecting head (33) are provided with protrusions (331) that clamp and lock with the bending parts (323).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultrasonic imaging system and a catheter thereof. The catheter comprises a catheter body (1) formed by winding metal wires. A polymer material film is plated on an external surface and/or internal surface of the catheter body (1). The polymer material film tightens spiral metal wires of the catheter body (1) to significantly improve the elasticity of the catheter.\nA: The present invention relates to a balloon catheter and an ablation system. The balloon catheter comprises a catheter body, a balloon, a temperature measuring component and a limiting component. The balloon is arranged at the far end of the catheter body; the temperature measuring component comprises a temperature measuring module and a wire, the temperature measuring module being arranged on the balloon or the catheter body, and one part of the wire of the temperature measuring component being arranged in a cavity of the catheter body and extending in the axial direction of the cavity; and the limiting component is arranged in the cavity of the catheter body and is used for limiting the position of the wire of the temperature measuring component in the cavity. The present invention limits and protects the wire of the temperature measuring component by means of the limiting component, thereby avoiding the risk that a wire is pulled and broken when a balloon stretches or a catheter moves, and further preventing the wire from hindering the movement of a catheter body.\nB: An intravascular ultrasound imaging catheter and system, the intravascular ultrasound imaging catheter comprising: a sheath tube (10); a flexible drive shaft (20) arranged in the sheath tube (10), with a first end of the flexible drive shaft being configured to be electrically connected to a drive device (100), and the drive device (100) being configured to drive the flexible drive shaft (20) to rotate in the sheath tube (10) and move in an axial direction of the flexible drive shaft (20); and a transducer, which is arranged at a second end of the flexible drive shaft (20) and comprises a microelectromechanical ultrasound transducer array chip (30) configured to be electrically connected to an ultrasound host (200) so as to transmit an obtained imaging electric signal to the ultrasound host (200) or receive an excitation electric signal transmitted from the ultrasound host (200). The intravascular ultrasound imaging catheter and system solve the problems of an ultrasound transducer element used in a traditional intravascular ultrasound imaging catheter whereby same has a complex processing process, a low degree of integration and a high manufacturing cost, and limits the improvement of working performance of an intravascular ultrasound imaging system.\nC: A ureteral catheter structure, comprising a catheter body (1); the catheter body (1) comprises an inter-spliced stepped braided tube (2), curved tube (3) and plastic catheter head (14); a splicing site between the stepped braided tube (2) and the curved tube (3) receives a first stainless steel outer tube (4), the first stainless steel outer tube (4) being covered with a first PET heat shrinkable thin film (5); a second stainless steel outer tube (6) is received between the curved tube (3) and the plastic catheter head (14), the second stainless steel outer tube (6) being covered with a second PET heat shrinkable thin film (7); a traction wire (8) is provided within the catheter body (1), an end of the traction wire (8) being fixed on the curved tube (3), while the other end passes through the stepped braided tube (2); and a heat shrinkable sleeve (9) is provided outside of the curved tube (3). An end of the ureteral catheter may be independently bent in multiple sections, thereby achieving a good detection effect, and solving the technical problem wherein a deflection of an end of a ureteral catheter is unstable.\nD: A medical catheter and a three-dimensional magnetic positioning system. The medical catheter comprises a catheter body (300), a first magnetic sensor (341), and a second magnetic sensor (342). The catheter body (300) comprises a tip tube section (310), an adjustable bending section (320) and a straight tube section (330) which are sequentially connected in an axial direction. The first magnetic sensor (341) and the second magnetic sensor (342) are both provided on the tip tube section (310). The positioning of the medical catheter is more accurate, which is beneficial to improving the control precision of the medical catheter.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a method for measuring fetal growth parameters. The measurement method comprises: obtaining an ultrasound image of at least one part of a fetus (S100); determining, according to a convolutional neural measurement model, the distribution region of a part to be measured in the ultrasound image, the convolutional neural measurement model training and determining a plurality of labeled ultrasound images of different fetal parts by means of a convolutional neural network (S200); highlighting and fitting the contour of the distribution region of the part to be measured (S300); by means of measuring the fitted contour corresponding to the part to be measured, obtaining growth parameters of different parts to be measured (S400). Also provided are a fetal growth parameter measurement system, ultrasound device, and storage medium. The fetal growth parameter measurement method, measurement system, ultrasound device, and storage medium can automatically measure the growth parameters of different fetal parts using a trained convolutional neural measurement model, improving the accuracy of measurement and improving the working efficiency of a doctor.\nA: A method and apparatus for determining an optimal fetal standard view. Said method comprises: acquiring a standard view of each fetal ultrasound image among a plurality of fetal ultrasound images (101); determining the view score of the standard view of each fetal ultrasound image (102); and according to all the view scores, determining, from all the standard views, a standard view corresponding to the highest view score, and taking same as an optimal standard view (103). Once the standard view of the fetal ultrasound image is acquired, there is no need to perform manual analysis to determine the optimal standard view of the fetal ultrasound image, the view score of the standard view of the fetal ultrasound image can be automatically determined, and the standard view having the highest view score is intelligently selected from all the view scores, achieving the automatic determination of the optimal standard view, and the determination accuracy and efficiency of the optimal standard view of fetal ultrasound images can be improved, thereby achieving accurate acquisition of growth and development conditions of the fetus.\nB: A follicle tracking method and system. The method comprises: acquiring ultrasound images of an ovarian tissue of a subject under test, the ultrasonic images being obtained at at least three different examination times, wherein the ovarian tissue comprises a target follicle (201); respectively determining follicle regions, on the ultrasound images obtained at at least three different examination times, corresponding to the target follicle to obtain at least three follicle regions, wherein the at least three follicle regions are follicle regions corresponding to the same target follicle (202); respectively determining growth parameters of the target follicle according to the at least three follicle regions (203); obtaining a growth trend chart of the target follicle according to the at least three growth parameters of the target follicle (204); and displaying the growth trend chart (205). According to the method, tracking detection is performed on the same target follicle in the ultrasonic images obtained at different examination times, and the growth parameter trend chart of the same target follicle is obtained, such that an operator can precisely evaluate an optimal follicle taking time according to the growth trend chart of the target follicle, thereby effectively improving the precision and working efficiency of evaluating a follicle taking time.\nC: A lesion part identification method, identification apparatus, computer apparatus and readable storage medium. The method comprises: acquiring a first magnetic resonance image and a second magnetic resonance image by performing magnetic resonance scanning on a preset part of human body by applying different magnetic resonance scanning sequences (101); performing image registration on the first magnetic resonance image and the second magnetic resonance image (102); detecting the registered first magnetic resonance image and second magnetic resonance image by using a trained regression convolutional neural network model to obtain a first preset part area in the registered first magnetic resonance image and a second preset part area in the registered second magnetic resonance image (103); predicting the probability that the first preset part area belongs to a lesion area by using a first convolutional neural subnetwork in a trained dual training convolutional neural network model so as to obtain a first lesion probability, and predicting the probability that the second preset part area belongs to a lesion area by using a second convolutional neural subnetwork in the trained dual training convolutional neural network model so as to obtain a second lesion probability (104); and determining whether the preset part is a lesion part according to the first lesion probability and the second lesion probability (105). The present method may quite accurately identify lesion parts.\nD: A pelvic floor measurement method. After a current ultrasonic pelvic floor image is acquired, pelvic floor key part points can be automatically recognized on the current ultrasonic pelvic floor image, and a measurement reference line is automatically marked for a doctor to view. Compared with the prior art where the doctor manually recognizes the key part points of the pelvic floor and manually marks the measurement reference line, the measurement process is simplified, the measurement time is shortened, and therefore the measuring efficiency is improved. Moreover, the pelvic floor measurement method in the present application is based on a mature deep learning intelligent algorithm, and a measurement reference line can be accurately marked, so that the measurement accuracy is improved. Further disclosed are a pelvic floor measurement system and an ultrasonic device. The pelvic floor measurement system and the ultrasonic device have the same beneficial effects as the pelvic floor measurement method.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA light-emitting dental floss of the present invention comprises a dental floss, an illumination system, and a handle. The dental floss is detachably connected onto the handle. The illumination system comprises a light source system, a circuit system, a switch, and a power system. The light source system is connected to the power system by means of the circuit system. The circuit system and the power system are mounted in the handle. The switch is mounted on the handle. Illumination light emitted from the light source system can illuminate the oral cavity. Specifically, the light-emitting dental floss of the present invention is further designed with an observation window. During use, the process that the dental floss enters a gap between teeth can be directly observed under the illumination of the illumination system, thereby facilitating cleaning and effectively avoiding injuries to gums.\nA: A disinfecting lighting system (100), comprising a power source unit (150), a lighting unit (170) and a disinfection unit (200). The lighting unit (170) comprises a lighting bulb (240) and a power source interface (260), the lighting bulb (240) being electrically connected to the power source unit (150) by means of the power source interface (260). The disinfection unit (200) comprises a light projection unit (110), a camera unit (120), a control unit (130) and a storage unit (140), wherein the light projection unit (110), the camera unit (120) and the storage unit (140) are communicatively connected to the control unit (130), and the light projection unit (110) comprises a disinfection light source that may change projection direction. By means of adding a disinfection unit (200) onto the lighting unit of an existing lighting system, an entire indoor item may be scanned, and selected items may be disinfected and sterilized without adding new equipment indoors, which overcomes the defect wherein existing disinfection products may only disinfect fixed positions indoors.\nB: Disclosed is a tool for cleaning a gap between teeth, comprising an all-metal dental floss pick and dental floss, wherein the dental floss pick is made of a stainless steel wire and is composed of two parts, including a U-shaped bow and a handle; both ends (1, 2) of the U-shaped bow are provided with a ring slot; two steel wires that make the handle have a gap therebetween at terminal ends thereof and other parts of the two steel wires are tightly attached together; and the dental floss is wound around the ring slots at the two ends (1, 2) of the U-shaped bow, and after winding, the terminal end of the dental floss is clamped in the gap in the middle of the handle and is fixed. The dental floss pick body can be repeatedly used. The all-metal dental floss pick has a smooth surface with a high hardness, is simple in structure, is easy to clean after use, and can be subjected to high-temperature sterilization. The dental floss pick is Y-shaped as a whole, is simple and small in structure, can be flexibly operated and can change the angle when in use, and can also conveniently clean each gap between teeth. The U-shaped bow portion of the dental floss pick is made of a stainless steel wire, has a high rigidity, and when combined with the winding method, ensures that the dental floss has a sufficient tensioning force so as to conveniently remove dietary fibers that are even tightly stuck in the gap between teeth.\nC: Disclosed is a visual diagnosis and treatment system (100) with a cavity dilatation device, the system comprising a cavity dilatation mechanism (1), an observation mechanism (2), a circuit system (3), a power source system (104), a control mechanism (5), and a display system (102). The cavity dilatation mechanism (1) includes a dilatation end (11). The dilatation end (11) is arranged at the front end (5-1) of the control mechanism (5) and can dilate a cavity at the front end of the observation mechanism (2) to enlarge the observation field of the observation mechanism (2). The observation mechanism (2) includes an illumination module (21), a lens module (22), a signal processing module (23) and a housing (24). Images and videos observed by the lens module (22) in a light field of the illumination module (21) are processed by the signal processing module (23) and are then output to the display system (102) by the circuit system (3) for displaying. The illumination module (21), the lens module (22) and the circuit system (3) are connected and then mounted in a sealed manner in the housing (24). Since the cavity at the front end of the observation mechanism (2) is dilated, the observation field of the lens module (22) is larger, and the clinical observation effect is better. Using the visual diagnosis and treatment system (100) with a cavity dilatation device, a surgical instrument can be delivered into a body from a sheath (12) so as to perform various surgical operations, such as biopsy sampling, electrotomy, electrocoagulation and ablation, while observing, which is convenient for clinical use.\nD: A multi-lens oral cavity observation system (100) is disclosed, comprising a housing (1), a power source (2), an illumination system (3), an observation system (4), an electric circuit system (5) and a switch (6). The observation system (100) comprises at least two cameras (41-2). The cameras (41-2) comprise a close focus lens (41-21) for observing an interior of an oral cavity and a camera (41-22) for capturing a face of a person. A lens switch (61) allows for switching between a working state of the close focus lens (41-21) and a working state of the camera (41-22) for photoing a face of a person, such that the multi-lens oral cavity observation system (100) can photograph an object at a far distance, such as a human face, as well as an interior of an oral cavity at a near distance, and store both an image of the human face and a morphology of the interior of the oral cavity in a display system (41-3) at the same time, thus effectively avoiding confusion of data collected from different subjects. An oral cavity observation system (100) with an identity recognition device is disclosed, comprising a housing (1), a power source (2), an illumination system (3), an observation system (4), an electric circuit system (5), a switch (6) and an identity recognition device (7). The observation system (4) comprises a camera (41-2) for observing, photographing or videoing an interior of an oral cavity. Data collected by the camera (41-2) is processed by a data processing system (41-1) and then transmitted to a display system for display and recording. The identity recognition device (7) can acquire an identity feature of a subject, such as a facial image, fingerprint, iris, etc., thus effectively avoiding confusion of data collected from different subjects.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn indicator (10, 60) and a dental instrument (100) having the indicator (10, 60), the indicator (10, 60) being used for the dental instrument (100). In one embodiment, the indicator (10) comprises a first indicator (20) and a second indicator (30) which are stacked, the first indicator (20) comprising a first pattern layer (21), and the second indicator (30) comprising a second pattern layer (31). An active substance in the oral cavity sequentially permeates through the first indicator (20) and the second indicator (30), and with the permeation of the active substance in the oral cavity, the first pattern layer (21) and the second pattern layer (31) sequentially display patterns. In another embodiment, the indicator (10) comprises an adsorption layer (11) and a display layer (12), and when the adsorption layer (11) adsorbs an active substance in the oral cavity and reaches a saturated state, the active substance permeates through the adsorption layer (11) and into the display layer (12), and the active substance acts on the display layer (12) to display a pattern. In yet another embodiment, the indicator (60) comprises a pattern layer (61) and a scale (70), the pattern layer (61) forming a change region (L) under the action of an active substance in the oral cavity, and the scale (70) being used for indicating position information of the change region (L). The dental instrument (100) having the indicator (10, 60) can optimize the indication effect and improve wearing compliance.\nA: A virtual environment picture display method and apparatus, and a device and a storage medium. The method comprises: displaying a first virtual environment picture (60), wherein the first virtual environment picture (60) comprises a first region obtained by observing a virtual environment with a first observation position serving as an observation center, and the first virtual environment picture (60) displays a main control virtual character (61) located in the virtual environment; in response to receiving an aiming operation, displaying a regional skill indicator (65) for selecting a target region, wherein the regional skill indicator (65) is used for identifying the target region in the virtual environment, and the target region is a skill actioning region when the main control virtual character (61) releases a skill; and displaying a second virtual environment picture, wherein the second virtual environment picture comprises a second region obtained by observing the virtual environment with a second observation position serving as an observation center, the second observation position is a position that is deviated relative to the first observation position, and the second region comprises the target region. The accuracy of target aiming is improved.\nB: A dental instrument for adjusting the maxillomandibular relationship, comprising a first housing-like body (10) for accommodating maxillary teeth and a second housing-like body (20) for accommodating mandibular teeth. The buccal side surface of a posterior teeth region of the first housing-like body (10) is provided with a protrusion (11) protruding toward the opposite jaw for adjusting the maxillomandibular relationship; the protrusion (11) comprises an acting end, and the acting end at least partially covers the buccal side surface of the second housing-like body (20) when the first housing-like body (10) and the second housing-like body (20) act stably; a limit portion (21) protruding toward the buccal side is provided along the buccal side surface of the second housing-like body (20); a mesial surface (111) of the protrusion (11) interacts with a distal surface (212) of the limit portion (21) to adjust the maxillomandibular relationship. When the first housing-like body (10) and the second housing-like body (20) act stably, the mesial surface (111) of the acting end forms surface contact with the distal surface (212) of the limit portion (21), the surface contact has a large action area and strong action force, and thus, the maxillomandibular relationship is effectively adjusted to tend to be normal.\nC: A knee joint soft tissue balance measurement device and a measurement method thereof. The measurement device comprises: a datum plate (10), a movable plate (20), a base body (30), an actuator (40), a gap indicator (50), an extorsion indicator (60) and a load indicator (70), wherein the datum plate (10) is fixedly connected to the base body (30); the movable plate (20) is rotatably connected to the actuator (40); the gap indicator (50) is connected with the actuator (40); the extorsion indicator (60) is connected with the movable plate (20); the load indicator (70) is connected with the actuator (40); and the actuator (40) is disposed on the base body (30). With the measurement device and the measurement method thereof, comprehensive measurements for a straightening gap, a knee-bending gap, a physiological extorsional angle of femur and the magnitude of an applied load can be carried out at the same time, and prior to the formation of the knee-bending gap, a prejudgment can be produced on the basis of the measured parameters and the original balance condition of soft tissues to determine the knee-bending gap consistent with physiological features, thus attaining the anticipated soft tissue balance.\nD: An accelerator optical distance indicator apparatus, a calibration method, and an optical distance indicator generation method, relating to the technical field of medical appliances. The accelerator optical distance indicator apparatus comprises a projector (101), a camera (102), an optical distance indicator calibration plate (103), and an optical distance indicator (104); the projector (101) is configured to project a structured light mode sequence pattern and an optical distance indicator pattern; the camera (102) is configured to collect the structured light mode sequence pattern projected by the projector (101) and an image of the optical distance indicator calibration plate (103); the optical distance indicator calibration plate (103) is configured to calibrate the projector (101) and the camera (102) and verify precision of the optical distance indicator apparatus; the optical distance indicator (104) is configured to indicate a scale of the optical distance indicator apparatus. The accelerator optical distance indicator apparatus may calibrate the camera (102) and the projector (101) by means of structured light to obtain calibration parameters, and may also further generate the optical distance indicator pattern using the obtained calibration parameters. The accelerator optical distance indicator apparatus is convenient to mount, the calibration accuracy of the calibration method is high, and the calibration process of the optical distance indicator apparatus is simplified.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a portable water toothpick. The portable water toothpick comprises a spray head (1) and an adapter (2), wherein the rear end of the adapter (2) is a connector (21) for butt jointing an externally matching water bottle (7); the middle portion of the connector (21) of the adapter (2) extends rearwards and is provided with a cylindrical body (22), and the cylindrical body (22) extends into the externally matching water bottle (7); and a sealing cavity (221) is arranged in the cylindrical body (22) in the axial direction thereof, the sealing cavity (221) is sealed from the outside, and a battery (3), an electric motor (4), a transmission mechanism (5) and a piston cylinder (6) are sequentially arranged in the sealing cavity (221) from the rear to the front in the axial direction of the cylindrical body (22). Internal mechanisms consisting of the electric motor (4), the battery (3), the piston cylinder (6), etc., of the water toothpick are arranged in a straight line, are packaged in the cylindrical body (22) in a sealed manner and then extend into the externally matching water bottle (7), so that the size of the water toothpick is minimized, and the water toothpick can basically be placed in a pocket when being carried around, and is extremely portable and convenient.\nA: Disclosed is an atomizer, comprising: a pump housing (1) provided with an inner cavity (5) extending in the axial direction of the pump housing (1) and a mount being in communication with the inner cavity (5) and located at a first end of the pump housing (1); a sealing element (2) arranged in the mount and provided with a sealing sleeve (21) and a first through hole (22) which is positioned inside the sealing sleeve (21) and is coaxial with the inner cavity (5), wherein at least part of the sealing element (2) abuts against a mounting surface of the mount; a pressing member (3) at least partially arranged in the mount and abutting against the sealing element (2) to press the sealing element (2) and keep the sealing element (2) in the mount, wherein the pressing member (3) is provided with a second through hole coaxial with the inner cavity (5); and a plunger (4), wherein a first end of the plunger (4) penetrates the second through hole of the pressing member (3) and the first through hole (22) of the sealing element (2) and enters the inner cavity (5) of the pump housing (1) and can move in the inner cavity (5) in a reciprocating manner such that fluid can be pumped into and out of the inner cavity (5), and the pump housing (1), the pressing member (3), and the plunger (4) together define a sealed cavity to contain the sealing member (2).\nB: A water flosser, comprising a nozzle (2), a body assembly (3) and a wireless induction charging base (3-2). The nozzle (2) is connected to the body assembly (3), and the body assembly (3) is fixed on the wireless induction charging base (3-2) so as to provide charging for the body assembly (3). A handle (2-1-1) has a hollow cavity along the length thereof, a spacing board (30-1) divides the hollow cavity of the handle (2-1-1) into an upper and a lower cavity, the upper cavity having disposed therein an upper internal assembly (6) and the lower cavity having disposed therein a lower internal assembly (11). The upper internal assembly (6) includes a water pump (15), the water pump (15) having a water inlet valve plate (15-6) and a water outlet valve plate (15-6-1) therein, the water inlet valve plate (15-6) and the water outlet valve plate (15-6-1) using a piston (15-3-1) and a connecting rod (15-3) in the water pump (15) to open and close; water in a chamber of the water pump (15) in the upper internal assembly (6) moves in an upper part of the handle (2-1-1) and a sealed cavity formed by the spacing board (30-1) and the lower internal assembly (11), and cannot flow into the lower internal assembly (11), solving the problem of insufficient water flosser use life caused by damage to a PCB circuit board (20) and motor (22) due to a water pump leaking.\nC: An adapter for a liquid injector, comprising an adapter body. The adapter body comprises an injection port (1) into which the liquid injector can be inserted and a sealing cavity (2) matching a bottle opening; an abutting column (3) is provided between the injection port (1) and the sealing cavity (2); a liquid injection cavity (4) communicated with the injection port (1) is provided in the abutting column (3); a liquid outlet through hole (5) is provided on the side wall of the abutting column (3), and the sealing cavity (2) and the liquid injection cavity (4) are communicated with each other by means of the liquid outlet through hole (5). A sealed cavity in which liquid leakage is not easy to occur is formed by mounting the injector at the injection port of the adapter and mounting the sealing cavity on a pressing pump at the bottle opening; a liquid is injected into a bottle through a slit on the side wall of the pressing pump by means of the liquid injector, so that it is easy to use and carry and the liquid leakage is not easy to occur.\nD: A self-resetting sealing needleless medical infusion connector, comprising: a connector and an infusion adapter. A lower portion of the connector comprises a male connector and a fixing nut. A fluid transport channel is provided in an inner cavity of the connector. The infusion adapter comprises an adapter top cover and an elastic sealing member. An upper portion of the connector is covered by and fixedly connected to a lower portion of the adapter top cover. The sealing member comprises a column body extending in a lengthwise direction of the fluid transport channel. An inner core of the column body comprises a blind hole having a downward opening. A slit that seals under normal conditions passes from a blind top surface of the blind hole to an upper end surface of the sealing member. The sealing member is fixedly provided in an inner cavity of the adapter top cover. A fixing external thread is provided circumferentially at an upper end surface of the adapter top cover. An insertion hole that matches a needleless male connector of an external infusion device is provided in an inner core of the adapter top cover. A small head section of a top end portion of the sealing member extends into the insertion hole and is connected to the same within a fitting tolerance thereof.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a surgical guide plate and a preparation method therefor. The preparation method comprises the following steps: a) bonding a radiation-blocking material onto an oral mucosa, and putting on an occlusal rim; b) carrying out CBCT photographing to acquire CBCT data carrying information of the radiation-blocking material; c) acquiring STL data of an oral cavity surface; d) matching the CBCT data with the STL data; e) loading occlusal rim data; f) carrying out intelligent tooth arrangement; and g) designing an implant, and generating a surgical guide plate. By means of the preparation method, the level of comfort of a patient can be increased, preparatory processes are reduced, a radiation guide plate does not need to be made, the number of return visits is reduced, the clinical medical cost is reduced, the precision of a surgical guide plate is increased, the software design time is reduced, and the treatment experience is improved.\nA: A guide plate body (100, 401) of a surgical guide plate is provided with at least one bone binding surface (101), and the surgical guide plate further comprises a navigation tracing surface (200, 403), wherein the navigation tracing surface (200, 403) is arranged on the surface of the guide plate body (100, 401) or is arranged on a navigation tracing carrier (402); and the navigation tracing carrier (402) is arranged on the guide plate body (100, 401). A construction method and manufacturing method for a three-dimensional model of the surgical guide plate, and a corresponding computer device and storage medium are further disclosed. The construction method comprises: firstly acquiring image data of a bone to be operated on for three-dimensional reconstruction of the bone so as to obtain a three-dimensional model of the bone; then designing a surgical guide plate model according to the three-dimensional model of the bone; and printing the surgical guide plate by means of a 3D printing technique. The bone binding surface (101) of the surgical guide plate completely matches a bone structure surface (302) to be operated on, such that the surgical guide plate and the navigation tracing surface (200, 403) of the surgical guide plate can be stably fixed to a complex bone structure, and a navigation tracer and the 3D printing surgical guide plate are combined into a whole, thereby meeting the high-efficiency, accuracy and personalization requirements for the treatment.\nB: The present disclosure provides a guide plate design method for a total hip replacement and a related device, the method comprising: determining a corresponding three-dimensional image on the basis of medical image data of a target part, and selecting a fitting prosthesis model from a prestored total hip joint prosthesis database; generating a simulation guide plate that fits the prosthesis model, and obtaining guide plate design data; and using the guide plate design data for the processing and fabrication of a total hip joint prosthesis. The guide plate design method for a total hip joint replacement provided in the present disclosure reduces the design difficulty of an artificial total hip joint guide plate, shortens the design period of the guide plate, significantly improves the production efficiency of guide plates used in artificial total hip replacement surgery, assists surgeons to more precisely and more efficiently complete an operation, and further improves clinical effects.\nC: Disclosed is a digital intraoral impression system, comprising: an intraoral impression scanner (5) and an intraoral scanning guide plate, wherein the intraoral scanning guide plate comprises a fixing device (3) and a rigid guide plate (1), the rigid guide plate (1) is provided with a scanning guide face, and the scanning guide face is provided with a guide mark; and the fixing device (3) is provided with a connector connected to the internal structure of an oral cavity and used for fixing the rigid guide plate (1) inside the oral cavity. Further disclosed is a method for acquiring a digital intraoral impression by using the digital intraoral impression system, so that intraoral impression data without accumulated measurement error can be acquired, satisfying the requirements of subsequent design and processing, and improving the precision of the digital intraoral impression.\nD: Provided are a tooth occlusion control handpiece guide plate and a manufacturing method therefor, the guide plate comprising an upper base (1) which is controlled by upper teeth, upper alveolar bones or mucosas, and a lower base (2) which is controlled by lower teeth, lower alveolar bones or mucosas, wherein a supporting body (3) is arranged between the upper base (1) and the lower base (2), and the supporting body (3), the upper base (1) or the lower base (2) is provided with a control mechanism for positioning and guiding an implantation handpiece; when in use, the guide plate is placed between upper teeth and lower teeth of a patient, and is subjected to occlusion fixation respectively with the upper base and the lower base through the upper teeth and the lower teeth; and then the handpiece is placed in the control mechanism which is set according to implantation data, enabling the handpiece to move in the direction of the control mechanism to the alveolar bones during implantation drilling. The guide plate performs guiding and positioning on the handpiece, improving the precision of positioning and guiding, the guide plate is prevented from directly contacting a drill bit rotating at a high speed, the heating value of the drill bit will not be increased in addition. The guide plate can be fixed simply by occlusion of a patient, thereby without the need for multiple people operating, reducing the difficulty of a tooth implantation operation.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a safe root canal treatment system, comprising a safe root canal instrument, an instrument code identification system and a safe root canal motor handle, wherein the safe root canal instrument carries an identifiable instrument code that corresponds to a model specification; and after the safe root canal instrument is mounted on the safe root canal motor handle, the instrument code identification system can autonomously identify the model specification of the safe root canal instrument, the safe root canal motor handle can autonomously invoke an operating program corresponding to the model specification of the safe root canal instrument, and an information link is established between the safe root canal instrument and the safe root canal motor handle. The beneficial effect of the present invention is that it is possible to ensure the safety of instrument usage.\nA: A hydraulically driven interventional instrument delivery system, comprising a plurality of pipe fittings (1) coaxially arranged from the inside to the outside, and a control handle (2) that drives the plurality of pipe fittings (1) to make relative movements; distal ends of the pipe fittings (1) are used to cooperate with each other to operate an interventional instrument, proximal ends of the pipe fittings (1) are connected to the control handle (2), and at the control handle (2), the pipe fittings (1) are hydraulically driven to make relative movements; the control handle (2) is provided with one or more hydraulic chambers (311, 321), and pistons (4, 9) are slidably installed inside the hydraulic chambers (311, 321) respectively; and two radially adjacent pipe fittings (1) comprise an outer layer pipe fitting and an inner layer pipe fitting, the outer layer pipe fitting enters one of the hydraulic chambers (311, 321) and is fixed to a piston (4, 9) in the hydraulic chamber (311, 321), and the inner layer pipe fitting extends and is connected to the piston (4, 9) of the other hydraulic chamber (311, 321) or fixed to the control handle (2). The hydraulically driven interventional instrument delivery system uses a hydraulic driving manner, which is convenient and quick to use, and may further switch between different functions by means of a hydraulic driving circuit.\nB: Provided is a medical instrument, comprising a gripper (3), an operating head (2) and a handle (1), wherein the operating head (2) is connected to the gripper (3) and the handle (1); the handle (1) comprises a housing (10); the operating head (2) comprises a triggering force applicator, a triggering rod (21) connected to the triggering force applicator, a placement cavity (22) arranged at one side of the triggering rod (21), and a clip cartridge assembly (23) arranged inside the placement cavity (22) and used for conveying a ligation clip (231) to the gripper (3); an inner cavity (11) in communication with the placement cavity (22) is formed inside the housing (10); and the triggering rod (21) is connected to the triggering force applicator and the gripper (3) respectively, and the triggering force applicator drives the triggering rod (21) to move so as to open or close the gripper (3). The medical instrument further comprises a limiting member for preventing the clip cartridge assembly (23) and/or a driving assembly (26) from exceeding a travel range. The medical instrument has an extremely large safety coefficient by means of providing limiting protection, effectively reduces the probability of failure in the case of a single fault, reduces the risk of an operation, has a simple structure and is easily operated.\nC: An interventional device delivery system driven by means of a hydraulic mode. The system comprises multiple pipes (1) provided coaxially from inside to outside, and a control handle (2) for driving the multiple pipes (1) to move relatively. The distal ends of the pipes (1) are used for matching each other to operate an interventional device, and the proximal ends of the pipes (1) are connected to the control handle (2); the pipes (1) are driven, by means of the hydraulic mode at the control handle (2), to move relatively. The control handle (2) is provided with one or more hydraulic cavities, and a piston is separately slidably mounted in each of the hydraulic cavities; a hydraulic driving circuit for driving, by means of the pistons, the pipes (1) to move relatively is further provided at the control handle (2). The hydraulic driving circuit comprises: a hydraulic pipeline (33) for providing a liquid channel communicated with the hydraulic cavities; a driving pump (5), communicated with the hydraulic pipeline (33) and used for driving a liquid to flow; and a control valve, communicated with the hydraulic pipeline (33) and used for controlling a flow direction of the liquid. The hydraulically driven interventional device delivery system uses a hydraulic drive mode, and is convenient and swift in use, and different functions can further be switched by means of the hydraulic driving circuit.\nD: A root canal preparation machine (200) and a root canal preparation machine (200) control method. The root canal preparation machine (200) comprises a root canal handle (220), a root canal file (230), an electric motor and a first near field communication device (240), wherein the electric motor and the root canal file (230) are both connected to the root canal handle (220); the electric motor is configured to drive the root canal file (230) to rotate; the first near field communication device (240) is electrically connected to the electric motor; and the first near field communication device (240) is configured to control the electric motor on the basis of external information (250).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA capsule endoscope magnetic control apparatus (30) comprises a movable bed frame switchable between a single-unit mode and a two-section mode. When in the two-section mode, the movable bed frame further comprises a left mattress (33), a left bed frame (34), a left fixing member (35), a right mattress (38), a right bed frame (37), and a right supporting member (36). The left bed frame (34) and the right bed frame (37) are connected by means of a pivot shaft. When in the single-unit mode, the movable bed frame and a magnetic control main device (31) are physically connected by means of a pivot shaft. The movable bed frame of the capsule endoscope magnetic control apparatus (30) can be folded and stored according to the status of a person under examination, enhances convenience for examination, and improves user experience.\nA: A capsule endoscope, comprising a first part (1) and a second part (2). The first part (1) is provided with a first power supply connection component (1071); the second part (2) is provided with a second power supply connection component (1072) and a micro motor (109); the first part (1) and the second part (2) are combined with or separated from each other by means of magnets; when a battery (108) is provided on the first part (1) or the second part (2), the first part (1) and the second part (2) are electrically connected by means of the first power supply connection component (1071) and the second power supply connection component (1072); when the first part (1) is provided with a first battery (303), and the second part (2) is provided with a second battery (304), the first part (1) and the second part (2) supply power respectively, and the capsule endoscope controls the movement direction and speed of the capsule endoscope by means of the micro motor (109) of the second part (2). The capsule endoscope controls the movement direction and speed of the capsule endoscope by driving the micro motor (109), the operation is convenient, and the cost of a control system is lowered. Moreover, a capsule is divided into two parts which are relatively independent and small in size, a subject swallows the capsule separately, and the fear of the subject in the swallowing process can be alleviated.\nB: A novel wall-leaning electric bed, comprising: a back plate (1), a lower body plate (2), and a bed frame (3). The back plate (1) and the lower body plate (2) are sequentially arranged on the bed frame (3); the tail portion of the back plate (1) is rotatably connected to the bed frame (3), the back plate (1) can slide back and forth along the bed frame (3), and the bed frame (3) can drive the back plate (1) to turn over relative to the bed frame (3) and draw close to a head portion (5) of the bed frame (3); and the driving stroke of the bed frame (3) is smaller than a half of the distance from the head portion (5) to a tail portion (4) of the bed frame (3). The driving stroke is controlled not to exceed the bipartite point of the electric bed, so that the utilization rate of mounting space in the electric bed is improved, and the load capacity and stability are improved.\nC: An electric bed body, comprising a fixed bed frame (1), a movable bed frame (2) capable of moving relative to the fixed bed frame (1), and a driving mechanism (3) for driving the movable bed frame (2) to move. The movable bed frame (2) is provided with space frames (213, 233) for the driving mechanism (3) to be embedded, a horizontal pipe (221), and a plurality of vertical pipes disposed on the upper and lower sides of the horizontal pipe (221); force distribution of the vertical pipes is performed to enable the electric bed body to change between a flat-lying state and a raised state; when the electric bed body is in the flat-lying state, the driving mechanism (3) is embedded in the space frames (213, 233), the configuration positions of all the vertical pipes and the position of an output shaft of the driving mechanism (3) are all located on the vertical central axis of the fixed bed frame (1), and the height of the lower surface of the driving mechanism (3) from the ground is not less than the height of the lower surface of the electric bed body from the ground.\nD: Disclosed in the present application is a nursing bed-chair, the nursing bed-chair (10) comprising a bedstead (11). The bedstead (11) comprises a bedstead frame (111) and bedstead legs (112) arranged below the bedstead frame (111), with the bedstead legs (112) being used for supporting the bedstead frame (111); and a mobile bed body (12) detachably connected to the bedstead (11). The mobile bed body (12) comprises a chair back plate assembly (121), a chair seat plate assembly (122), a first connecting member (20) connecting the chair back plate assembly (121) and the chair seat plate assembly (122), a leg supporting plate assembly (123), and a second connecting member (30) connecting the leg supporting plate assembly (123) and the chair seat plate assembly (122), wherein the first connecting member (20) is used for making the chair back plate assembly (121) rotate relative to the chair seat plate assembly (122), and the second connecting member (30) is used for making the leg supporting plate assembly (123) rotate relative to the chair seat plate assembly (122). By means of the arrangement, it is possible to switch between two forms, i.e. a nursing bed and a nursing wheelchair, thereby meeting the multiple requirements of patient nursing.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn electric toothbrush based on LED light care, comprising a handle (1), a brush handle (2) being provided at a front end of the handle (1), a brush head (3) being provided at a front end of the brush handle (2), and a drive mechanism (4) for driving the vibration of the brush handle (2) and a circuit board (5) being provided within the handle (1). An LED light-emitting panel (6) is provided within the brush head (3), and a plurality of LED chips (60) are provided on the LED light-emitting panel (6), and the LED light-emitting panel (6) and the drive mechanism (4) are electrically connected to the circuit board (5) respectively. The plurality of LED chips (60) are used for emitting red light, infrared light and/or ultraviolet light, bristles (30) are provided on the brush head (3), and the brush head (3) and/or the bristles (30) are light guide materials. Under the driving of the drive mechanism (4), the brush handle (2) and the brush head (3) vibrate therewith, thereby realizing the cleaning effect of teeth, and meanwhile, under the irradiation of the LED light-emitting panel (6), an oral cavity can receive light care by means of red light, infrared light, ultraviolet light or composite light from any combination of the three, so that the light care for the oral cavity is achieved while a user is cleaning the teeth, meeting user's requirements and saving user's expense.\nA: An electric toothbrush capable of cleaning the teeth in all directions, comprising a handle, a connecting portion provided at a front end of the handle, a motor, an outer brush plate (3), an inner brush plate (4), bristles (5) that are provided on inner surfaces of the inner brush plate (3) and the outer brush plate (4), and an inner bottom casing (6); further comprised is an outer bottom casing (7) that is connected by the connecting portion; an outer rotating plate (8) that is movably disposed within the outer bottom casing (7) and that is connected to the motor; an outer crank (9) that is rotatably connected to the outer rotating plate (8) and the outer plate disk (4) and that is located within the outer bottom casing (7); an inner crank (10) and an inner rotating plate (11) that are disposed within the inner bottom casing (6); the inner crank (10) is rotatably connected to the inner brush plate (4) and the inner rotating plate (11) respectively; at least one guiding rod (13) that is located at a side of a connecting rod is disposed on the outer bottom casing (7), at least one longitudinal strip-shaped inner guiding hole (401) is provided within the inner brush plate (4), and at least one longitudinal strip-shaped outer guiding hole (301) is provided within the outer brush plate (3); the inner brush plate (4) and the outer brush plate (3) may slide relative to the guiding rod (13). Driven by the motor, the bristles (5) on the inner brush disk (4) and the outer brush disk (3) may achieve cleaning in all directions for the inner and outer walls of the teeth, the gaps between the teeth, and so on; the present invention is convenient to use and has high cleaning efficiency.\nB: A toothbrush comprises a brush handle (1) and bristles (4), and also comprises a number of flexible brush heads (3) stuck in the front of the handle (1), and a removable head frame (2) for the flexible brush (3) to mount on the handle (1). Bristles (4) are provided on the brush heads (3). The flexibility vertical to the brush handle of the toothbrush is improved, and meanwhile by using moderate bristles, bristles can go through each slot of teeth to clean the tartar. While brushing teeth, by adjusting different forces of brushing, gum is massaged and by replacing the single broken brush head, the waste and pollution of changing the whole toothbrush are reduced.\nC: A liquid toothbrush, comprising a brush holder (1) and a brush head (2). A fluid pipe (11) is provided inside the brush holder (1); the fluid pipe (11) is provided with liquid spray holes (22) at the inner wall of brush head (2); the fluid pipe (11) is provided with a liquid inlet (12) at the tail of brush holder (1); the liquid inlet (12) is connected to a pressurized liquid supplier or a household tap water valve by means of a connecting pipe; brush hair (21) of the brush head (2) of the toothbrush is arranged in rows; the brush hair (21) and the liquid spray holes (22) are arranged at intervals; the brush hair (21) of the brush head (2) is designed into rows, so that an obvious vertical brushing effect can be yield during tooth brushing. Moreover, in combination with an oral healthcare fluid sprayed or washed out of the liquid spray holes (22) of the brush head (2), and with the brushing function of the brush hair in being freely separated forward and backward and in freely entering diastema and slits between teeth, foreign matters on gingivae and teeth and in diastema and slits between the teeth can be cleaned.\nD: A new toothbrush comprises a head (1), bristles (2) and a handle (3). The bristles (2) are disposed on a lower surface (4) of the head (1). A front end (5) of the handle (3) is mounted on a side surface of the head (1). The length direction of the handle (3) is perpendicular to the length direction of the head (1). The handle (3) comprises a handle front portion (6) and a handle rear portion (7). The longitudinal section of the handle front portion (6) has at least one first arc (8). The circle center of the first arc (8) is below the arc. The vertex of the first arc (8) and a rear endpoint (10) are both above an upper surface (11) of the head (1). The handle (3) and the head (1) form a substantially T-shaped structure, so that the contact area between the bristles (2) and the teeth is increased, and people can use the vertical brushing method to brush the teeth by following actions and habits thereof, thereby cleaning the teeth more effectively. When the vertical brushing method is used to brush the inner side surface of the teeth, the front portion (6) of the handle (3) arches towards the inside of the oral cavity, so that the bristles (2) can be maximally perpendicular to the inner side surface of the teeth, thereby better meeting the requirements of the vertical brushing method.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultrasonic lactation induction and promotion method, wherein an ultrasonic lactation inducing physiotherapy instrument is used to perform lactation induction and promotion treatment on a lactating woman, specifically comprising the following steps: a. applying a gel to the surface of the skin corresponding to the lactiferous ducts and the breast lobules; b. placing a flat surface of a probe of the ultrasonic lactation inducing physiotherapy instrument on the gel-coated skin, moving the probe back and forth in the direction of the lactiferous ducts, or moving the probe in a circle clockwise or counterclockwise to cover the area of the breast lobules so as to perform ultrasonic lactation induction and promotion treatment; an ultrasonic massage device is used to massage specific acupuncture points and specific areas of the breast, and the treatment solution is fine-tuned according to physical conditions during puerperium; the present invention may quickly and painlessly solve the problems of physiological engorgement, breast nodular hyperplasia and the like, while reducing harm to the hand of a massage therapist\nA: Provided is an ultrasonic device for postpartum rehabilitation, comprising: a main machine (100); and a treatment gun (200) connected to the main machine (100), wherein the treatment gun (200) is used for transmitting focused ultrasonic waves to a specific site on the body of a puerpera. The ultrasonic device for postpartum rehabilitation can transmit ultrasonic waves to a specific site, such as the uterus, vagina, breasts or pelvic floor, of the body of a puerpera from the outside without causing damage to the skin, so as to perform a non-invasive treatment for postpartum rehabilitation of a puerpera.\nB: A vortexed-acoustic-field method for creating cell permeability and a vortexed-acoustic-field method for opening a blood-brain barrier. The vortexed-acoustic-field method for creating cell permeability comprises: using an ultrasonic transducer (105) (S210, S310, S410); using a probe (100) emitting a vortexed acoustic field, wherein the probe (100) emitting a vortexed acoustic field has a piezoelectric patch (101), the piezoelectric patch (101) comprises at least one inner channel, and when there are a plurality of inner channels, a phase difference is generated between each two inner channels and is used by the ultrasonic transducer (105) to generate a vortexed acoustic field (S220, S420); and enabling cells to have permeability by means of the generated vortexed acoustic field (200), wherein the vortexed acoustic field (200) has the following parameters: frequency: 20 KHz-20 MHz, and acoustic pressure: 0.1 MPa-10 MPa (S230, S330).\nC: A vortex catheter thrombolytic system (10, 11), comprising: an ultrasonic transducer (105); and a probe (100) which emits a vortex sound field, and a catheter (200). The catheter (200) is provided at the probe (100) which emits the vortex sound field, and is connected to the ultrasonic transducer (105); the catheter (200) has a first inner passage (210) and a second inner passage (220); the first inner passage (210) is used for delivering a drug; the second inner passage (220) is used as the vortex drive. The thrombolytic (500) method comprises: by means of the vortex catheter thrombolytic system (10, 11, 12), carrying out an ultrasonic execution step to generate a sound vortex (S510); carrying out a focusing step to focus a drug delivery carrier to the center of the acoustic vortex (S520); and carrying out an operating step to operate the drug delivery carrier to a lesion area (S530).\nD: Disclosed are a body model and method for bimodal three-dimensional breast imaging quality detection. The body model comprises a three-dimensional breast-shaped phantom structure (1) prepared with an agarose gel comprising polyethylene inside, wherein the polyethylene is a radiation equivalent material of adipose tissue under the X ray, and the relaxation time of the hydrogen proton in the agarose gel in the 3T magnetic field is equivalent to that of human adipose tissue, and a breast tissue catheter phantom (3) and a lobule phantom of the mammary gland (4) distribute inside the breast-shaped phantom structure (1). The body model can be used for image quality detection and analysis in two imaging systems, i.e. magnetic resonance and mammography. The material is flexible, and can be compressed and imaged on a mammography platform, and can also be placed vertically in a magnetic resonance breast coil to carry out a tomography, realizing two imaging ways with one body model, and broadening the application range.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn integrated rhinitis recovery and care device having a magnetization function comprises a bottle body, a medicine liquid nozzle (1), a medicine liquid duct (2), a recycle duct (3), a pump-out mechanism (4), and a nasal cavity bionic plate (5). The bottle body comprises a medicine liquid chamber (6) and a recycle chamber (7). A liquid leakage hole (8) is formed in the lower end of the nasal cavity bionic plate (5), and a nose wing-shaped protrusion (9) is disposed at the upper end of the nasal cavity bionic plate (5). The pump-out mechanism (4) is in communication with the medicine liquid chamber (6) by means of the medicine liquid duct (2), and the medicine liquid nozzle (1) is in communication with the medicine liquid duct (2) by means of the pump-out mechanism (4); the liquid leakage hole (8) is in communication with the recycle chamber (7) by means of the recycle duct (3), and the recycle duct (3) is in communication with the liquid leakage hole (8) by means of a second liquid one-way valve(12). A magnet (10) used for cutting medicine liquid molecules by magnetic force is disposed at the bottom of the medicine liquid chamber (6). The device is convenient to carry and use, and can enhance the medicine liquid absorption effect by cutting medicine liquid molecules by magnetization and can enhance the medicine liquid absorption effect by hot gas.\nA: A medical device, the medical device comprising a joint (1), a catheter (2), and a guide wire (3). The medical device further comprises: an elastic part (4) sleeved on the other end of the guide wire (3); and a protruding part (5) sleeved on the outer circumference of the guide wire (3). The protruding part (5) is connected between the elastic part (4) and the catheter (2); the diameter of the protruding part (5) is larger than the diameters of the catheter (2) and the elastic part (4). When the catheter (2) is drawn inside a blood vessel, the protruding part (5) can not only prevent damage to the medical device, but also effectively lower the risk in catheter-directed thrombolysis, and can also break and clean thrombi in advance, so as to increase the contact area of a liquid medicine during medication, thereby accelerating absorption of the liquid medicine and improving treatment effect.\nB: A medication preparation device and method for a vial. The device comprises a control system and a double head syringe (2) provided on a base (1). A catheter I (22) and a catheter II (23) connected to the syringe (2) are connected to a needle I (3) for being inserted into a vial (01) and a needle II (4) for being inserted into an infusion bag (02), respectively. The catheter I (22) is provided with a clasp member I (5). The catheter II (23) is provided with a clasp member II (6). The control system is communicatively connected to a linear reciprocating motion mechanism I (11), the clasp member I (5), and the clasp member II (6). Compared with the low efficiency of the method in the prior art of manually holding a syringe to suck the medicinal liquid or powder contained in a vial, and then manually holding an infusion bag to insert the syringe into the infusion bag and inject the medicinal liquid therein, and the potential danger of the method in the prior art to a medical staff who operates, the device is simple in structure, occupies small space, and is simple to operate; the invention automates and facilitates preparation and injection of the medicinal liquid or powder in the vial, effectively avoids backflow of the medicinal liquid, effectively reduces the labor intensity, has high medication preparation efficiency, and is secure.\nC: Disclosed is a nasal cavity irrigation device, comprising: a water supply assembly, a catheter (7) used to transfer cleaning fluid and a nozzle (2). An end of the catheter (7) for fluid flowing in is connected to the water supply assembly and an end for fluid flowing out is connected to the nozzle (2). A camera module (3) is located at the front end of the nozzle (2), and the camera module (3) is connected to a display assembly though a data channel (6). The camera module (3) located at the front end of the nozzle of the nasal cavity irrigation device can achieve the effect of visualization. During use, a patient is able to irrigate the nasal cavity accurately and effectively by themselves under the guidance of the images captured by the camera module (3), and flush out the foreign bodies in the nasal cavity thoroughly. The nasal cavity irrigation device is simple in structure, convenient to carry, and suitable for self-irrigation of the nasal cavity by patients at home or while travelling, thereby decreasing the cost of treatment and nurses.\nD: A manual multi-bottle infusion apparatus. Same is provided with a manual medicine-changing apparatus (7). The manual medicine-changing apparatus (7) comprises multiple penetrating connectors (8) and a medicine-changing valve (9). The medicine-changing valve (9) comprises a valve base (10) and a valve core (11). The valve base (10) is provided with a sliding cavity (12), a solution-collecting chamber (13), and multiple solution-infusing connectors (14). Each solution-infusing connector (14) corresponds to a solution outlet (15). The valve core (11) is provided with a solution-guiding hole (16), multiple orientation positioning holes (17) corresponding to every solution-infusing connector (14), and a pusher (22). The pusher is used for pushing the valve core (11). The solution-guiding hole (16) of the valve core (11) is utilized to connect the different solution-infusing connectors (14) to the solution outlets (15) corresponding thereto. When a patient needs infusion of multiple medicinal solutions, a nurse connects multiple medicinal solution bottles (23) to the manual medicine-changing apparatus (7). When the medicinal solution of the first medicinal solution bottle (23) is depleted, the patient or an accompanying person presses with hand the pusher (22) of the manual medicine-changing apparatus (7) to connect the medicinal solution of the next medicinal solution bottle (23) to a solution-infusing apparatus (1), thus solving the problem of nurse shortage.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn integrated pet brush, comprising a pet brush body (1). A cylindrical tooth part (2) used for combing pet hair and massaging a pet is provided on the front surface (11) of the pet brush body (1) that is in contact with the pet hair; a handheld part (3) is provided on the back surface (12) of the pet brush body (1) distant from the pet hair; a first interface (4) connected to a dust collection device is formed on the pet brush body (1); the first interface (4) is communicated with the cylindrical tooth part (2) to form an air suction channel (5) that is on the pet brush body (1) and communicated with the dust collection device.\nA: An interactive smart pet feeding apparatus, comprising a feeding apparatus body, the feeding apparatus body comprising a pet food dispensing control apparatus and a shaking detection module, the pet food dispensing control apparatus being used for dispensing a fixed amount of pet food and preventing pet food blockages, the shaking detection module being used for detecting the state of motion of the feeding apparatus body, the shaking detection module being connected to a control module to implement data communication, and the control module implementing data communication with a mobile terminal by means of a wireless transmission module; the feeding apparatus body also comprises an upper housing (2) and a bottom housing (6) arranged below the upper housing (2), the upper housing (2) and the lower housing (6) being connected to internally form a hollow chamber, a food bin (3) being arranged above the chamber, a top lid (1) being arranged above the upper housing (2), and a food bowl (12) being arranged outside the bottom housing (6); the present pet feeding apparatus enables a pet to acquire corresponding food on the basis of the movement of the pet, thereby implementing automatic pet feeding.\nB: A pet litter box, comprising a box body (1). A pet litter storage area (2) is provided in the box body (1); an inlet communicated with the pet litter storage area is provided on the box body (1); an activity passage (3) for a pet to crawl or jump is further provided in the box body (1); the activity passage (3) is communicated with the pet litter storage area (2); an outlet (4) communicated with the activity passage (3) is further provided on the box body (1). The present pet litter box can effectively prevent a pet from bringing pet litter out of a pet toilet, and it is guaranteed that the environment is clean and tidy.\nC: Provided are a combing component (12), a manufacturing method of the combing component and a pet combing device (10). The provided combing component (12) and pet combing device (10) can effectively remove loose hair without cutting off or taking away good hair, while hardly incurring surface rust. The combing component (12) is used for combing hair of pets and removing loose hair and comprises: a U-shaped base (23) provided with a concave face, wherein the concave face comprises two inner sides and an inner bottom perpendicular to the two inner sides; a plurality of comb teeth (22) formed on the inner bottom and regularly arranged along the length direction of the inner bottom, wherein the extending direction of comb teeth extending outward is perpendicular to the inner bottom; wherein, a face defined by two adjacent comb teeth (22) and the inner bottom serves as tooth root face (29), and each tooth root face (29), the two inner sides and the circumferential face of each comb tooth each consist of a rough layer formed by tool marks during the mechanical process and an electroplated layer formed on the rough layer.\nD: A novel pet cage, comprising: a pet chamber (1) for holding a pet; a urine collecting apparatus (2) for collecting urine of the pet, the urine collecting apparatus (2) being provided right below the pet chamber (1); and a feces collecting apparatus (3) for collecting feces of the pet, the feces collecting apparatus (3) being provided right below the urine collecting apparatus (2); a pet chamber bottom plate (11) is provided thereon with slots for enabling urine and feces of the pet to pass; the urine collecting apparatus (2) comprises a sheet for urine (21) which is provided thereon with slots for enabling feces of the pet to pass, the slots on the sheet for urine (21) and the slots on the pet chamber bottom plate (11) being configured in a staggered manner; the feces collecting apparatus comprises a feces collecting container. The pet cage can separate the urine and feces of a pet, efficiently reducing the odor produced by mixture and fermentation of urine and feces of a pet, and has the advantages of being environmentally-friendly, space saving, and easy to clean and manage.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a high-frequency linear vibration massager, comprising a machine body, an audio vibrator and a driving circuit board (10). The machine body comprises a machine shell (2), a handle, a coil frame (8), a runway-shaped driving coil (7) and a wiring circuit board (9); the audio vibrator is installed in an inner cavity of the machine shell (2) and comprises a moving-iron rack (6), four magnets (5), two balancing weights (4) and a cushioning rubber mat (3); the driving circuit board (10) is arranged in an inner cavity of the handle and comprises a power supply management module, and an MCU control module, an audio playing module and an audio motor amplification driving module which are connected with the power supply management module; the MCU control module is connected with the audio playing module and the audio motor amplification driving module, and the audio playing module is connected with the audio motor amplification driving module; and the driving circuit board (10) is connected with the driving coil (7) by means of the wiring circuit board (9), and the driving circuit board (10) generates alternating current with the amplitude fluctuating up and down according to audio, so that the magnets (5) correspondingly swing according to the current waveform, and a massage effect like the rhythm of music can be achieved.\nA: A functional electrical stimulation device for relieving preoperative and prenatal anxiety. The device comprises a headset, an electrical stimulation patch (6), an LED display (7), a circuit board (5), a rechargeable battery (2) and a wireless terminal (15), wherein two earphone bodies (1) are symmetrically arranged on the headset; the circuit board (5) and the rechargeable battery (2) are respectively mounted on the two earphone bodies (1), and a music control button (3) and an electrical stimulation mode and time control button (4) are further respectively installed on the two earphone bodies (1); there are two electrical stimulation patches (6), which are installed in a middle portion of the headset, and there are two LED display screens (7), which are respectively installed on the two electrical stimulation patches (6); and the circuit board (5) is provided with an audio decoding chip (8), a button control module (9), a power source switch (10), an electrical stimulation generation module (11), a wireless communication module (12), and a charging socket (13), and the wireless terminal (15) is independently arranged and is in wireless communication connection with the circuit board (5). By means of the cooperation of the functional electrical stimulation device, the patient's anxiety symptoms can be relieved physiologically and psychologically.\nB: A portable nebulizer capable of automatically adjusting the nebulization rate according to pulmonary ventilation volume, comprising a housing (1), a medicine liquid box (2), a nozzle (3), a battery (4) provided in the housing (1), a circuit board (5) provided in the housing (1), a nebulizing plate (6) provided between the medicine liquid box (2) and the nozzle (3), a nebulization driving circuit separately connected to the nebulizing plate (6) and the circuit board (5) and provided between the liquid medicine box (2) and the housing (1). The circuit board (5) comprises a main control module connected to the nebulization driving circuit, a pulmonary ventilation detection module connected to the main control module, and a digital display module and a power supply module connected to the main control module; the pulmonary ventilation detection module comprises a signal amplification circuit connected to the main control module, and an internal resistance strain sensor (8) connected to the signal amplification circuit; the nozzle (3) is provided with a blowing channel (7) which is separated from the nozzle (3) and extends from outside to inside; the blowing channel (7) is communicated with the interior of the housing (1), and gas enters into the interior of the housing (1) from the blowing channel (7) to be in contact with the internal resistance strain sensor (8). The nebulizer is convenient to use and environment-friendly.\nC: A moving-iron flap massage device, comprising a first housing (1). A coil support (2) and a circuit board (3) are fixed in the first housing (1); a coil is wound on the coil support (2); the coil is electrically connected to the circuit board (3); the coil support (2) is cylindrical; a magnet (4) runs into the coil support (2), and the magnet (4) can perform reciprocating sliding with respect to the coil support (2); a massage pad (5) made of flexible rubber is embedded on the first housing (1); the massage pad (5) is fixedly connected to the end of the magnet (4); the circuit board (3) is used for loading a pulse signal to the coil, so that the coil can generate an alternating magnetic field, so as to drive the magnet (4) to reciprocate by means of the alternating magnetic field and then to drive the massage pad (5) to execute a flap massage action. The massage device can implement automatic flap massage, save time and labor, and meet various massage requirements.\nD: A doll circuit and a doll are provided. The doll circuit comprises a bluetooth receiving circuit, an audio amplifying circuit and a motor. The bluetooth receiving circuit includes an audio output port connected with the input port of the audio amplifying circuit. The output port of the audio amplifying circuit is connected with the motor to drive the motor. The children's interest in playing dolls would be aroused because the bluetooth receiving circuit is adopted to receive audio and drive the motor. Furthermore, the motor is isolated from a loudspeaker by an AC coupling circuit and therefore the doll circuit has the functions of driving the motor by audio and audio playing at the same time.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA thermostatic safety apparatus comprising an upper cover connecting element (1), an upper nickel-titanium alloy spring (2), a spherical silicone pad (3), a sealing valve (4), a lower nickel-titanium alloy spring (5), and a spherical container (6). When the temperature of a liquid in the container is greater than 41 °C ± 2 °C, the lower nickel-titanium alloy spring (5) in the spherical container (6) extends under the effects of temperature, the upper nickel-titanium alloy spring (2) contracts under the effects of temperature and force, the lower nickel-titanium alloy spring (5) pushes the sealing valve (4) and the spherical silicone pad (3) to block a circular water outlet of the cover connecting element (1); when the temperature of the liquid is less than 36 °C, the lower nickel-titanium alloy spring (5) contracts, the upper nickel-titanium alloy spring (2) extends, and the upper nickel-titanium alloy spring (2) pushes the sealing valve and the spherical silicone pad to allow the liquid to pass through the circular water outlet of the cover connecting element.\nA: A nickel titanium alloy gradient flexible root canal file, comprising a root canal file tip part (F1), a root canal file middle part (F2) and a root canal file root part (F3) divided along the axis of the nickel titanium alloy gradient flexible root canal. The internal tissue of the root canal file tip part (F1) is a martensite M phase; the internal tissue of the root canal file middle part (F2) is an R phase; and the internal tissue of the root canal file root part (F3) is an austenite A phase. Further disclosed is a manufacturing method for the nickel titanium alloy gradient flexible root canal file. The beneficial effect is that the safety of using the file is effectively improved.\nB: Provided are a nonlinear temperature compensation device (1), an optical module and a method. The device (1) comprises a driving rod (101) and a two-way shape memory alloy spring (103), wherein the driving rod (101) is provided with an elastic structure (102), two ends of the two-way shape memory alloy spring (103) are connected to the driving rod (101), and the two-way shape memory alloy spring (103) is connected to the elastic structure (102) in parallel; the two-way shape memory alloy spring (103) is made of a material capable of realizing a two-way shape memory behavior, and the length thereof changes with temperature non-linearly; and the optical module uses the nonlinear temperature compensation device (1) to compensate the AWG wavelength non-linearly. According to the nonlinear behavior of the two-way shape memory alloy material changing with temperature, the two-way shape memory alloy spring (103) is used for compensating the change of the AWG wavelength with temperature, and the structure is simple and the manufacture is easy; and compared with linear compensation, the wavelength drift is smaller, and the applicable temperature range is wider.\nC: A fixing clip, comprising a fixing clip body (1). The fixing clip body (1) has a clipping space (11) and a clipping opening (12) in communication with same, and comprises a hardware spring fastener (2) and an elastic rubber base (3) integrally formed at the periphery of the hardware spring fastener (2) and matching same in the appearance. The elastic rubber base (3) has a clipping space (11) and a clipping opening (12). The hardware spring fastener (2) is used as a frame for the fixing clip body so as to improve the elastic clipping force. The elastic rubber base (3) is integrally fixed at the periphery of the hardware spring fastener (2), and is elastic to open or close over the hardware spring fastener (2). During use, the clipping opening (12) of the fixing clip body (1) is enabled to face towards a tube or a pillar, is pushed hard to open to form the elastic restoring force, and is reset under the elastic restoring force after the tube or the pillar is placed into the clipping space, so that the fixing clip body is stably clipped on the tube or the pillar, is not easy to detach, and is easy to operate.\nD: An emergency shut-off valve integrating electromagnetic, manual, and temperature-sensing self-actuated shut-off approaches. When a handle (20) is manually pressed to drive a temperature-sensing element (21) to push a push rod (28) to move downward or when the temperature-sensing element (21) is influenced by the ambient temperature to push the push rod (28) to move downward, the push rod (28) drives a protection slider (29), a pressure relief protection spring (31), and a small push rod (32) to slide downward; a steel bead interior securing member (6) is driven by the small push rod (32) to move downward; then a steel bead (7) enters the place between a snap beads connection member (3) and the steel bead interior securing member (6); the snap beads connection member (3) is, after the steel bead (7) moves away, driven by a sealing spring (37) to move downward simultaneously with a sealing member (38) and a sealing sheet (39) so as to shut off a valve. The self-actuated emergency shut-off valve can be turned off in a self-actuated manner when the ambient temperature abnormally rises to a preset temperature, or can be manually turned off, or can also be remotely controlled as required.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA nutrient solution control device (5) provided on a nutrition pump between an upper tube a (3) and an upper tube b (4) of the nutrition pump. The nutrient solution control device (5) comprises a control valve which is capable of performing a rotational motion or horizontal movement. By means of the rotational motion or horizontal movement, the control valve may extrude one of the upper tube a (3) or the upper tube b (4) to make the upper tube a (3) or the upper tube b (4) closed or opened, thereby implementing switching between two different liquids. By adopting this control device, the structure of an enteral nutrition infusion apparatus is simplified, costs are reduced, and switching between transmission of a nutrient solution and that of a rinsing solution or blending transmission based on certain proportions is achieved.\nA: A clinical enteral nutrition temperature control device and method, the device comprising a containing bag (1), an infusion tube (2), and a plug (3). A double-layered buffer bag (4) is connected between the outlet of the containing bag (1) and the infusion tube (2). An electromagnetic heating coil (5) is provided at the inner layer of the buffer bag (4). The outer layer of the infusion tube (2) and the outer layer of the buffer bag (4) are both thermal insulation layers (7). A detection tube (8) is provided on the end of the infusion tube (2) close to the plug. The outlet of the buffer bag (4) is connected to a check valve. The detection tube (8) is connected to the plug (3) by means of a check valve. The infusion tube (2) at the front end of the detection tube (8) is provided with a cooling tube (12). A check valve is provided on the pipeline connecting the detection tube (8) and the containing bag (1). A temperature control cavity (15) having a controller (16) and a water storage cavity (17) inside is provided on one side of the buffer bag (4). The outlet of the water storage cavity (17) is connected to the inlet of the cooling tube (12) by means of a third check valve (18). The inlet of the water storage cavity (17) is connected to the outlet of the cooling tube (12) by means of a water pump (19). A flushing port (21) is provided on the upper part of the containing bag (1), and temperature sensors are provided in the inner layer of the buffer bag (4), in the infusion tube at the front end of the detection tube (8), and in the detection tube (8).\nB: A delivery device (100), comprising a catheter assembly (20) and a control assembly (10); the control assembly (10) is provided at a proximal end of the catheter assembly (20), and the control assembly (10) comprises a first control mechanism (11); the first control mechanism (11) comprises a hollow casing (14) and a limiting unit (15), and the limiting unit (15) comprises a limiting member (151) and a hollow receiving member (152), the receiving member (152) being disposed within the casing (14); an outer surface of the receiving member (152) is provided with an axial groove (153) and a circumferential groove (154), the limiting member (151) partially passing through the casing (14), then being received within the axial groove (153) or the circumferential groove (154) such that the casing (14) may move axially or circumferentially, the casing (14) then driving the limiting member (151) to move axially or circumferentially. By means of providing the first control mechanism (11), the delivery device (100) and the delivery system directly control a connection catheter in the catheter assembly (20) that is connected to an implant to quickly switch from axial movement to circumferential movement, thereby achieving an accurate and reliable release position of the implant such that the implant is closely fitted with the tissue, and the risk of paravalvular leakage occurring is reduced.\nC: A nutrient solution control method and control device. The control method comprises: acquiring plant type information of a cultivated plant; confirming, on the basis of the plant type information of the cultivated plant, a growth model and nutrient solution supply standards for the cultivated plant, the nutrient solution supply standards corresponding to each growth stage of the growth model; determining, on the basis of a preset time interval, a target growth stage that the cultivated plant is in; and adjusting, on the basis of the target growth stage, a nutrient solution supply to the cultivated plant. The control device comprises: an acquiring unit (301) for acquiring plant type information of a cultivated plant; a confirmation unit (302) for confirming, on the basis of the plant type information of the cultivated plant, a growth model and nutrient solution supply standards for the cultivated plant, the nutrient solution supply standards corresponding to each growth stage of the growth model; a determining unit (303) for determining, on the basis of a preset time interval, a target growth stage of the cultivated plant; and an adjusting unit (304) for adjusting, on the basis of the target growth stage, a nutrient solution supply to the cultivated plant. The method and device can provide reasonable nutrient solution supplies to a cultivated plant in different growth stages, achieving scientific allocation of a nutrient solution and enhancing utilization rates of the nutrient solution.\nD: A vegetable bearing case comprising a solution bearing case (7) having a high-position solution inlet (1) and a low-position solution outlet (5) in an opposite arrangement. A switchback solution flow channel (2) is formed in the solution bearing case (7) at an area located between the solution inlet (1) and the solution outlet (5) by protruding flow deflecting partitions (3). An atomizer (6) is arranged in the solution flow channel (2). The solution flow channel (2) of the vegetable bearing case allows a nutrient solution to form within the entire vegetable bearing case one nutrient solution flow that flows through the entire vegetable bearing case, thus allowing for increased nutrient solution component uniformity within the vegetable bearing case, and facilitating balanced growth of a vegetable. In addition, the atomizer (6) atomizes the nutrient solution to allow the nutrient solution to vaporize evenly as a mist to the upper part space of the vegetable bearing case, thus facilitating absorption for the vegetable and satisfying requirements for nutritional substances for vegetable growth. Moreover, the volume of the nutrient solution that is atomized can be controlled via the atomizer (6) to control the growth rate of the vegetable, thus allowing the vegetable to be placed in corresponding states of normal growth, slowed growth, or zero growth, and extending the duration that the freshness of the vegetable is preserved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA portable nebulizer capable of automatically adjusting the nebulization rate according to pulmonary ventilation volume, comprising a housing (1), a medicine liquid box (2), a nozzle (3), a battery (4) provided in the housing (1), a circuit board (5) provided in the housing (1), a nebulizing plate (6) provided between the medicine liquid box (2) and the nozzle (3), a nebulization driving circuit separately connected to the nebulizing plate (6) and the circuit board (5) and provided between the liquid medicine box (2) and the housing (1). The circuit board (5) comprises a main control module connected to the nebulization driving circuit, a pulmonary ventilation detection module connected to the main control module, and a digital display module and a power supply module connected to the main control module; the pulmonary ventilation detection module comprises a signal amplification circuit connected to the main control module, and an internal resistance strain sensor (8) connected to the signal amplification circuit; the nozzle (3) is provided with a blowing channel (7) which is separated from the nozzle (3) and extends from outside to inside; the blowing channel (7) is communicated with the interior of the housing (1), and gas enters into the interior of the housing (1) from the blowing channel (7) to be in contact with the internal resistance strain sensor (8). The nebulizer is convenient to use and environment-friendly.\nA: Disclosed is an atomizer drug delivery nozzle, and an intelligently self-adjustable atomizer drug delivery apparatus and a method for using same, characterized in that: a nozzle body (2) is provided with an exhalation detection valve (3) unidirectionally opening toward the outside of a nozzle and an inhalation detection valve (4) unidirectionally opening toward the inside of the nozzle, wherein bodies (3.2, 4.2) of the two valves (3, 4) are respectively provided with a first magnet (3.3) and a second magnet (4.3); a tube wall of the part of the nozzle body (2) that is close to the first magnet (3.3) is provided with a first sensor (3.1), and a tube wall of the part of the nozzle body (2) that is close to the second magnet (4.3) is provided with a second sensor (4.1); the first sensor (3.1) and the second sensor (4.1) are respectively connected to an atomizer control system; and the atomizer control system comprises an intelligent module for detecting a valve state during exhalation and inhalation, and controls a working state of the atomizer according to a received valve opening state detection signal sent by the first sensor (3.1) and the second sensor (4.1). By precisely sensing a patient's breathing action in real time, the atomizer nozzle can realize intelligent self-adjustment, so that the atomizer can be used once opened, has a simplified structure, decreased production costs and a reduced electricity consumption.\nB: An atomization device, comprising: a main housing (1) comprising a connection portion (14), a connection channel being formed in the connection portion (14); an atomizer (2) comprising an atomizer base (21), an atomizer arm (22), and an atomization core assembly provided in the atomizer base (21), the atomization core assembly comprising an atomization cup (23), a heating portion (24) and a thermal insulation portion, the atomizer arm (22) being connected to the atomizer base (21) and the connection portion (14), the heating portion (24) being provided at the bottom of the atomization cup (23) to heat the atomization cup (23), and the thermal insulation portion being used for thermally insulating heat generated by the heating portion (24); a hookah mouthpiece mechanism (3) detachably connected to the main housing (1), and comprising a glass mouthpiece (31) for a user to puff on same, the mouthpiece (31) being in communication with the atomization cup (23) by means of the connection channel; a control mechanism, accommodated in the main housing (1), and comprising a main control circuit board (51) electrically connected to the heating portion (24); and a battery (4), accommodated in the main housing (1), and electrically connected to the main control circuit board (51), so as to supply power to the atomizer (2).\nC: An atomization device (10). The atomization device (10) comprises: a main housing (1), comprising an upper connecting base (14) and a lower connecting base (15), wherein the lower connecting base (15) is disposed on the side of the main housing (1) that faces away from the upper connecting base (14); an atomizer (2), comprising an atomizer housing (21) and an atomization core assembly disposed inside the atomizer housing (21), wherein the atomization core assembly comprises an atomization cup (22), a heating portion (23) and a thermal insulation portion, the atomizer housing (21) is connected to the upper connecting base (14), the heating portion (23) is disposed at the bottom of the atomization cup (22) and heats the atomization cup (22), and the thermal insulation portion is used for thermally isolating heat generated by the heating portion; a mouthpiece mechanism (3), which is detachably connected to the atomizer housing (21) and comprises a mouthpiece (31) which a user uses to vape, wherein the mouthpiece (31) is in communication with the atomization cup (22); an electrical control mechanism, which is accommodated in the main housing (1) and comprises a main control circuit board electrically connected to the heating portion (23); a battery (4), which is accommodated in the main housing (1), is electrically connected to the main control circuit board and is used for supplying power to the atomizer (2); and a hookah adapting mechanism (6), which is disposed inside the main housing (1), is connected to the lower connecting base (15) and comprises a vapor-passing pipe (61), wherein the vapor-passing pipe (61) is in communication with a hookah vapor output pipe and the atomizer (2).\nD: An ultrasonic electronic cigarette atomizer, comprising: a housing (01); a sealing cover (02); a base (03) provided below the sealing cover (02); a straight-through tube (05) which is provided on the housing (01), has a mouthpiece (04) at an end portion thereof and is in communication with the inside of the housing (01); an outer connecting ring (06) provided at a position corresponding to the straight-through tube (05) and extending towards the inside of the housing (01); an inner connecting ring (07) which is provided inside the straight-through tube (05), is spaced from the straight-through tube (05) by a certain distance and is connected to the mouthpiece (04); an outer horn hood (08) which is provided inside the housing (01), is connected to the outer connecting ring (06) and has an end portion extending out of the sealing cover (02) and is connected to the base (03); a mating tube (09) which is provided inside the straight-through tube (05), is connected to the inner connecting ring (07) and extends to the interior of the housing (01) and is spaced from the outer horn hood (08) by a certain distance; an inner horn hood (10) connected to an end portion of the mating tube (09) and spaced from the outer horn hood (08) by a certain distance; and an atomization mechanism (11) provided inside the base (03) and connected to the end portions of the outer horn hood (08) and the inner horn hood (10). The electronic cigarette atomizer has the usage effects of facilitating disassembly and replacement and avoiding mixing of odors of e-liquids.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultrasonic nerve regulating device, comprising a planar ultrasonic transducer (100), an acoustic lens (200) and an acoustic wave collimator (300), wherein the planar ultrasonic transducer (100), the acoustic lens (200) and the acoustic wave collimator (300) are arranged in sequence; and the acoustic lens (200) is configured to regulate planar ultrasonic waves to focus obliquely, is in a shape formed by a major arc line and a straight line connected to two ends of the major arc line, and comprises a plurality of concentrically arranged split rings (110). The planar ultrasonic transducer (100) emits the planar ultrasonic waves, and the planar ultrasonic waves are obliquely focused through the acoustic lens (200). Therefore, focusing may be adjusted to a preset position by adjusting the angle of inclination, and nerve stimulation can be carried out without fixing an animal.\nA: A head-mounted ultrasound stimulation device (100) and system, the device (100) comprising a shell (10) for covering the head of a user, and a coupling sheath (20) provided inside the shell (10), wherein space (70) between the coupling cover (20) and the shell (10) is filled with coupling liquid, and the coupling sheath (20) contacts the head of the user when it is worn; the shell (10) is mounted with a two-dimensional area-array transducer (30), a data transceiving unit (40), a integrated circuit (50) and a power supply (60), wherein, the data transceiving unit (40) is used for receiving stimulation data from a control device (200), the stimulation data including data for controlling intensity and a focal position of a sound field generated by the two-dimensional area-array transducer (30); the integrated circuit (50) is used for converting the stimulation data into stimulation signals; the two-dimensional area-array transducer (30) is used for generating a focused ultrasonic field under stimulation by the stimulation signals to stimulate intracranial nerve cells; and the power supply (60) is used for supplying power to the data transceiving unit (40) and the integrated circuit (50). The device (100) can generate a focused sound field having a plurality of focal points, wherein, positions of the focal points and intensity of the sound field are adjustable, so as to make accurate multi-focal ultrasonic stimulation on the brain cell nucleus, thereby playing a curing effect. This device is easily operable.\nB: An acoustic wave focusing lens (22) and an ultrasonic imaging device and method. The acoustic wave focusing lens (22) has a simple structure and comprises a plurality of concentric annuluses (11), two adjacent annuluses (11) forming a slot (12). The annuluses (11) are made from a rigid material and have the same thickness. The slots (12) in the acoustic wave focusing lens (22) narrow sequentially from inside to outside. The structure is easily processed, has a low cost, is fitted to a plane ultrasonic transducer (21) and is flexibly used. Imaging of objects having different depths is achieved by changing the frequency of emission acoustic waves of the plane ultrasonic transducer (21).\nC: An imaging method and apparatus based on a row and column addressing annular ultrasonic transducer. The row and column addressing annular ultrasonic transducer comprises row array elements and column array elements, and the row array elements are annular. Sound waves are sequentially emitted by triggering the row array elements, so as to generate first cylindrical waves having target inclinations, thereby achieving a multi-angle cylindrical wave composite emission focusing mode, and achieving emission focusing in an elevation direction; and then the column array elements receive first echo signals, thereby achieving reception focusing in a transverse direction. Sound waves are sequentially emitted by triggering the column array elements, so as to generate second cylindrical waves having target axis positions, thereby achieving a multi-virtual-point-source divergent wave composite emission focusing mode, and achieving emission focusing in the transverse direction; and then the row array elements receive second echo signals, thereby achieving reception focusing in the elevation direction. Therefore, the present application achieves the emission and reception focusing in the elevation direction and the transverse direction, achieves the use of a rapid imaging technology in the row and column addressing annular ultrasonic transducer, and improves the imaging quality and speed.\nD: A super-resolution ultrasonic microscopy device and an application thereof. The super-resolution ultrasonic microscopy device comprises a planar ultrasonic transducer (10), an acoustic artificial structure (20), and an imaging device (30). A transmitting end of the planar ultrasonic transducer (10) transmits an ultrasonic sound wave signal of a specific frequency, the ultrasonic sound wave undergoes diffraction after passing through the acoustic artificial structure (20) and forms an ultra-diffraction limit focused sound field area (40) along the transmission direction of the ultrasonic sound wave on one side of the acoustic artificial structure (20) away from the planar ultrasonic transducer (10), the ultrasonic sound wave blocked by an object to be imaged that is placed in the ultra-diffraction limit focused sound field area (40) is reflected to the planar ultrasonic transducer device (10) and is received thereby, and finally the received signal is transmitted to the imaging device (30) for ultrasonic imaging, producing an imaged image with a higher resolution.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA pulse output control method, an apparatus, an electronic device, and a computer storage medium. The method is applied to an electrical stimulation apparatus, said method comprising: determining a target massage mode; obtaining pulse information and an electrode conduction sequence corresponding to the target massage mode; wherein the electrode conduction sequence comprises at least one electrode conduction subsequence, each electrode conduction subsequence comprises at least two conduction time segments and an identifier for an electrode being provided conduction within each conduction time segment, and the pulse information includes pulse amplitude change information; controlling n electrodes in outputting massage pulses of changing pulse amplitude on the basis of the pulse information and the electrode conduction sequence corresponding to the target massage mode. By utilizing the present method, a user can select a massage mode and output a continuously changing massage pulse as needed, reducing a relatively large percussive feeling on the body from a massage pulse, and improving massage comfort for the user.\nA: Disclosed is a massage chair control system, comprising: a plurality of pressure measurement units which are arranged in a plurality of massage areas of a massage chair; a heart rate measurement unit which is arranged on the surface of a hand massage area of the massage chair; a facial image collection unit which is arranged in a backrest area of the massage chair; a control unit in which different massage modes are preset; and a cloud service platform which is used for: calculating, according to pressure data, a massage intensity needing to be output in each massage area; identifying the age range and the gender of a user according to facial feature data; calculating a psychological stress value of the user according to heart rate data; selecting different massage modes for the user on the basis of the massage intensity, the age range and the gender; and adjusting, on the basis of a change in the psychological stress value, the control unit to output different massage modes and massage durations during a massage process. An intelligent massage mode output of a massage chair is realized.\nB: A massage mode starting method for a wearable massaging apparatus, comprising: reading the state information of a user of a wearable massaging apparatus within a preset period of time (101); and when the state information is a rest state within the preset period of time, controlling the wearable massaging apparatus to start a first massage mode (102), wherein the massage intensity of the first massage mode is less than preset intensity. Further disclosed are a wearable massaging apparatus and a terminal device. The wearable massaging apparatus can obtain the state information of the user of the wearable massaging apparatus within the preset period of time. If it is detected, according to the state information, that the user does not do sports but is in the rest state within the preset period of time, the wearable massaging apparatus can be controlled to start the first massage mode, thereby realizing the automatic starting of the massage mode of the wearable massaging apparatus, without the user manually starting the wearable massaging apparatus, and improving the intelligence of the wearable massaging apparatus.\nC: A pulse current output control method, comprising: acquiring, in real time, a first driving voltage output to a pulse output circuit, the first driving voltage being used for driving the pulse output circuit to output a first pulse current; and when the first driving voltage does not meet a predetermined voltage condition, indicating that the massage device is not closely attached to a human body part, adjusting the first driving voltage until a second driving voltage satisfying the predetermined voltage condition is obtained, and controlling the pulse output circuit to be driven by the second driving voltage to output a second pulse current, the second pulse current being smaller than the first pulse current.\nD: A method and apparatus for controlling a targeting massage device, the method comprising: acquiring exercise information (S101); and controlling the operation of the targeting massage device on the basis of the exercise information (S102). The method of the present invention can automatically acquire exercise information when a user is exercising and thus can control the targeting massage device to perform, on the basis of the exercise information acquired when the user is exercising, a targeting movement. The invention thereby automatically provides the user with the most comfortable, adequate, and effective massage corresponding to the exercise information so as to provide optimized massaging to achieve better, faster physical recovery after exercising while removing the need for the user to manually select a massage mode, thereby requiring minimal user input.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA TMS positioning navigation method used for transcranial magnetic stimulation treatment, mainly comprising the following steps: first, acquiring RGBD image data of the face of the patient to obtain stable RGBD image data and 3D point cloud image data; using a face detection algorithm on the RGBD images of the face of the patient to obtain patient facial feature point information; performing spatial positioning on the face of the patient to obtain 3D coordinate values of the patient facial feature points in a spatial coordinate system of the camera; constructing a model of the head of the patient, matching the spatial pose of the model of the head of the patient with the actual spatial pose of the head of the patient to determine the actual spatial pose of the stimulation points of the patient, and planning a movement path for a mechanical arm in order to complete first positioning; finally, storing the data of the spatial pose of the magnetic stimulation points of the head of the patient and the data of the movement path plan of the mechanical arm in the first positioning; at the next treatment, one-click positioning can be implemented by just invoking the data stored during the first positioning.\nA: A navigation and positioning system and method for a joint replacement surgery robot. The system comprises: a preoperative planning module (1), configured to perform segmentation and reconstruction of a hip joint according to obtained medical image data of the hip joint to obtain a hip joint three-dimensional model, perform preoperative planning, and determine a surgical scheme; an optical navigation and positioning module (2), configured to generate a navigation instruction according to the surgical scheme, register the hip joint three-dimensional model according to a spatial position relationship between the hip joint of a patient and a surgical probe to obtain a hip joint solid model, and determine a skeletal surgical position of the patient according to the hip joint solid model; and a mechanical arm control module (3), configured to move an end effector to the skeletal surgical position of the patient, and control the end effector to perform osteotomy, rasping and press-fit operations on the hip joint according to the navigation instruction. An orthopedic surgery robot performs preoperative planning, and completes surgical operation at a high level, thereby greatly reducing the operating intensity of a physician, saving surgical time, and improving operating precision.\nB: The present invention relates to a design idea of a radioactive seed implanting template and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) collecting image data about tumor portions of patients by using a scanning system; (2) a curing plan system reading the image data obtained in step (1) and drawing up a radioactive seed implanting plan according to the image data, to obtain picture data comprising locations, quantity and directions of needle passages and seed distribution information; (3) an image control system and a template design system processing the picture data on the basis of the picture data comprising locations, quantity and directions of needle passages and seed distribution information in step (2), and performing design to obtain a template digital model having patient facial morphology information, and locations, quantity and direction distribution information of needle passages; and (4) a template forming system forming a physical object by using the template digital model in step (3) as the template, to obtain a physical radioactive seed implanting template after preparation. The template of the present invention is accurate and stable in positioning, and basically eliminates the setup errors.\nC: A magnetic resonance navigation device for driving a magnetic stimulator coil to automatically adjust the position, comprising an image workstation (1). The image workstation (1) is connected to a spatial positioning sensor (3), a mechanical arm controller (6) and a physiological signal detection device (9) respectively. The mechanical arm controller (6) is connected to a mechanical arm (5). An end joint of the mechanical arm (5) is connected to a transcranial stimulation coil (2) and a second tracker (7) respectively. The transcranial stimulation coil (2) is connected to a transcranial magnetic stimulator. The spatial positioning sensor (3) is connected to a probe tracker (8). The probe tracker (8) is connected to a first tracker (4). The first tracker (4) is connected to an external marker point (10). This magnetic resonance navigation device enables precise navigation of the RTMS magnetic stimulation probe, visual displaying of the magnetic stimulation position and precise control of the stimulation position, thereby improving the treatment efficiency and reducing side effects.\nD: An intracerebral hematoma puncture guiding instrument capable of precise positioning, which is adapted to different head sizes by means of adjusting the relative distance between a single fork slider (5) and threaded screw holes (6) on a double fork base (4), achieving a reliable fixed connection between a guiding instrument and the head of a patient by means of a tip portion of a bone nail (7) directly bearing against a bone layer of the head; the spatial position of a puncture point and a positioning point may be adjusted by means of a combination of the vertical and horizontal translational movement of a cross-shaped sliding block assembly (9) in a spatial positioning apparatus (2) and the rotational movement of a spherical hinge assembly, thereby ensuring that the positioning point and puncture point cover all surgical areas for intracerebral hematoma puncturing; the structural constraint by which the positioning point and the puncture point are collinear is maintained by means of the coaxial coplanar relationship of a catheter seat assembly (11) and a positioning seat assembly (12), and a puncture path is ensured, by means of a guiding function of a catheter seat (14), to extend on a line connecting the positioning point and the puncture point so as to ensure the accuracy of an operation.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present invention is a protective disinfection device, which is a personal protective article. The present invention comprises a neck ring and a respirator; each of the neck ring and the respirator is provided with a cavity defined by a housing; the front end of the neck ring and the bottom end of the respirator are connected by means of connection parts; each of the two connection parts is provided with a connection through hole communicated with the cavity, and the two connection through holes are communicated with each other; the shape of the housing on the inner side of the respirator corresponds to the shape of a human face, and a sealing ring capable of fitting the human face is provided on the edge of the respirator; air inlets are provided on the housing of the neck ring, breathing vents corresponding to human nostrils and mouth are provided on the housing on the inner side of the respirator, and a disinfection mechanism is accommodated in the cavity between the air inlets and the breathing vents; an air discharge through hole is provided on the housing on the outer side of the respirator, and a one-way valve is provided in the air discharge through hole. By means of the cooperation of the neck ring and the respirator provided with the disinfection mechanism, the problems of wearing-type personal protection and repeated use are solved, and the protective disinfection device is comfortable to wear and convenient to carry.\nA: A knitted binding band for a respirator mask body, the knitted binding band being a fabric that is knitted at once using a knitting machine, the binding band comprising: a central ring body (1) and several binding strips (5) knitted and extending from the edge of the central ring body (1), a through hole (2) being provided in the middle of the central ring body (1). The binding band of the present invention is made at once by knitting, and unlike a cutting or stamping method, the knitting process almost produces no wastes in the whole process, simplifying the fabricating process, and reducing the fabricating costs. The binding band of the present invention is made by knitting, and the knitted structure itself has a porous structure and has good air permeability. When worn by a user, the binding band can quickly vent sweat, ensuring permeability of the skin, ensuring some extent of wearing comfort.\nB: A ventilation control apparatus (200), and a breathing mask device (20) provided with the ventilation control apparatus (200). The ventilation control apparatus (200) comprises a cavity (210) and a valve assembly (220). The cavity (210) is provided with an air delivery port (211) and a mask ventilation port (212) which are in communication with one another, the mask ventilation port (212) being used for being in communication with the breathing mask (20). The valve assembly (220) is provided with an air inlet channel and an air discharge channel in communication with the cavity (210) via the air delivery port (211). The valve assembly (220) is configured to connect the air inlet channel when the pressure (P 1 ) within the cavity (210) is less than or equal to the atmospheric pressure (P 0 ), and connect the air discharge channel when the difference (ΔP) between the pressure (P 1 ) within the cavity (210) and the atmospheric pressure (P 0 ) is greater than or equal to a predetermined value. The ventilation control apparatus (200) implements an exhalation phase positive pressure function, and prevents patient discomfort caused by continuous positive pressure. A positive pressure air supply apparatus (such as a CPAP breathing machine) and a pipeline etc. need not be connected during use, thereby facilitating patient movement, and the positive pressure air supply apparatus need not be carried when going out. A patient may carry the breathing mask (20) provided with the ventilation control apparatus (200) at any time for treatment. In addition, the ventilation control apparatus (200) is small in size, convenient to carry, and low in cost.\nC: A protective hood, comprising a hood body (1), a breathing filtering mechanism (2), an adjustment mechanism, and a lower sealing component (6). The hood body (1) provided with a visible region, and a breathing opening (11) and a lower mounting opening (15) are formed on the hood body (1); the head of a human body can penetrate through the lower mounting opening (15) to enter the hood body (1); the breathing filtering mechanism (2) is provided at the breathing opening (11) to filter air; the adjustment mechanism can be provided on the hood body (1) and can be in contact fit with the head of the human body so as to adjust the position of the hood body (1); and the lower sealing component (6) is provided at the lower mounting opening (15) so as to seal the space of the lower mounting opening (15) that is not occupied by the human body. Further disclosed are a protective clothing and a protective system. The present application can achieve the omnidirectional protection of the head of the human body and achieve an excellent virus prevention effect, and also can flexibly adjust the position of the hood body (1) relative to the head of the human body, thereby improving the comfort during use.\nD: The present disclosure relates to the field of medical instruments. Disclosed are a ventilation and noise reduction housing and assembly, a ventilation and moisture retention apparatus, a breathing mask assembly, and a breathing support device. The ventilation and noise reduction housing comprises a breathing channel segment, one end of the breathing channel segment is a ventilation and noise reduction housing connection end, and the other end of the breathing channel segment is a breathing tube communication end, wherein a channel wall of the breathing channel segment comprises a ventilation and noise reduction unit mounting wall segment, the ventilation and noise reduction unit mounting wall segment is provided with an exhaust port and a support protrusion structure protruding from the outer surface of the ventilation and noise reduction unit mounting wall segment, and the support protrusion structure is used for supporting a ventilation and noise reduction core of a ventilation and noise reduction unit provided on the ventilation and noise reduction unit mounting wall segment, such that a ventilation gap is maintained in at least a part of a space between the ventilation and noise reduction core and the outer surface of the ventilation and noise reduction unit mounting wall segment. The ventilation and noise reduction housing can improve the sanitation while reducing noise, so as to improve the therapeutic effect.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present invention are a climbing or rock climbing training simulation apparatus and a control method, inventively provided with support parts capable of moving to change position; thus, for four-limb climbing, four support parts can be used, arranged on a bracket or a wall that is vertical or at a certain angle of inclination; when needing to climb upward, a person generally first releases one hand in order to stretch the body so that the hand can climb upward to a higher support point, then releases the foot on the opposite side, the foot searching upward for a higher support point, then releases the other hand to climb upward to a higher support point, and then releases the foot on the other side, the foot searching upward for a higher support point, and repeats; in order to achieve the objective of the present invention, each support part can move to change position, and therefore when a person is climbing, the relative position between the support parts can be adjusted according to requirements or settings.\nA: An improved flipper comprises an outsole (1), a midsole (2) and a vamp (3) that are fixedly connected in sequence from the bottom to the top. The shape and the size of the outsole (1) match the shape and the size of a foot of a human body. The midsole (2) comprises a supporting portion (21) matching the outsole (1) in shape and size, and comprises a web-shaped water webbing portion (22) that extends outwards along the edge of a foot sole part of the supporting portion (21). The supporting portion (21) of the midsole (2) and the vamp (3) form an accommodating chamber accommodating the whole foot part of the human body. The web-shaped water webbing portion (22) comprises a first water webbing portion (221) and a second water webbing portion (222). One end of the first water webbing portion (221) is fixedly connected to the edge of the foot sole part of the supporting portion (21), and the other end of the first water webbing portion (221) is connected to one end of the second water webbing portion (222) by means of at least one foldable supporting mechanism (7).\nB: Disclosed is an obstacle support, comprising multiple support bases. Each two adjacent support bases are connected to each other by means of a lamp assembly. The lamp assembly can rotate arbitrarily in an axial direction of the support base. Each support base is provided with a mechanical touch switch or an infrared sensing switch and a speaker. Each lamp assembly is suspended on two adjacent support bases. When the mechanical touch switch or the infrared sensing switch senses an object, the lamp assembly is turned off. The angle of the product is adjustable, and the product can be adjusted to form different shapes and adapted to players of various levels. The product can provide different training shapes and degrees of difficulty according to requirements. The product can be disassembled, occupies little space, is lightweight and portable, provides multiple training modes, increases the fun of training, prevents boredom with training, has timekeeping and scoring functions, quantizes training data, allows data comparison, has a small footprint, readily provides indoor and outdoor training, and can improve the level of players in a precise manner by means of the infrared sensing switch or the mechanical touch switch thereof.\nC: A device for eliminating branch obstacles for electric power maintenance, comprising a main support rod (1); one end of the main support rod (1) is connected to an extension rod (4), and a fixing mechanism (2) is clamped to the other end of the main support rod (1) near the extension rod (4); one end of the extension rod (4) is connected to a connecting rod (5), one end of the connecting rod (5) is connected to a case (12), and one side surface of the case (12) is connected to a cutting blade (6); a lower end of the fixing mechanism (2) is connected to a supporting mechanism (3), and a moving seat (9) is provided at the bottom of the supporting mechanism (3). Therefore, the length is easily adjusted, while the fixing mechanism and the supporting mechanism are used to support the device instead of using a human body as a support point during traditional work so as to eliminate branches at high altitudes. In addition, wireless control is used, thus avoiding the problem in which the length of a device for eliminating branch obstacles is restricted due to traditional wired control, and branches at higher positions cannot be cut off. Furthermore, manpower is not required for carrying, moving is convenient, and operation is easy.\nD: A support member (200), comprising a first base (210), a plurality of supporting rods (220) arranged at intervals along the circumferential direction of the first base (210), a plurality of connecting rods (230) arranged corresponding to the plurality of supporting rods (220), and an adjusting rod (240) movably passing through the first base (210). The proximal end of each supporting rod (220) is relatively gathered at the first base (210), and an anchor (300) is correspondingly arranged at the distal end of each supporting rod (220). One end of each connecting rod (230) is rotatably connected to the corresponding supporting rod (220), and the adjusting rod (240) is rotatably connected to the opposite other end of each connecting rod (230). The first base (210), the plurality of supporting rods (220), the plurality of connecting rods (230), and the adjusting rod (240) of the support member (200) form a linkage structure, so that axial movement of the adjusting rod (240) can drive each connecting rod (230) to open the corresponding supporting rod (220), the plurality of supporting rods (220) are opened in an umbrella shape with respect to the adjusting rod (240), and when the location of the adjusting rod (240) is relatively fixed, the location of each supporting rod (220) is also fixed, thereby providing stable supporting force for the plurality of anchors (300) arranged at the distal end of each supporting rod (220). The present application also provides an annuloplasty device (1000) comprising the support member (200).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA microbubble generator, comprising a water inlet pipe (10), and a housing (20) in threaded connection with the water inlet pipe (10), a gap being reserved and a first air inlet channel (51) being formed between threads; a pressure boost pipe (30) disposed in the housing (20), a gap being reserved and a second air inlet channel (52) in communication with the first air inlet channel (51) being formed between the pressure boost pipe (30) and the housing (20); and a bubble generation pipe (40) disposed in the housing (20), wherein a gap is reserved and a third air inlet channel (53) is formed between an end face of the bubble generation pipe (40) close to the pressure boost pipe (30) and a corresponding end face of the pressure boost pipe (30). The pressure boost pipe (30) comprises a first water inlet (31) and a first water outlet (32). The inner diameter of the first water outlet (32) is less than the inner diameter of the first water inlet (31), such that water pressure at the first water outlet (32) is greater than water pressure at the first water inlet (31), and thus the flow velocity at the first water outlet (32) is increased, and air passing through the three air inlet channels (51, 52, 53) is sucked into the bubble generation pipe (40) and is mixed with water to generate large bubbles. The housing (20) is also internally provided with a cutter (60), and the large bubbles are cut into microbubbles by the cutter (60).\nA: An outflowing water control device comprises a housing (10), a water division body (20), and a water guide body (30). The housing (10) is provided with a water inflow end (11) and a water outflow end (12). A first cooperative portion is disposed on an inner wall of the housing (10) closing to the water inflow end (11). The water division body (20) is disc-shaped and an edge of the water division body (20) is provided with a first annular vertical plate (23). A second cooperative portion is disposed on the outer wall of the first annular vertical plate (23). A flow guide hole (21) that runs through is formed in the water division body (20). The water guide body (30) is cylindrical and comprises a first water outflow passage (31) and a second water outflow passage (32). A water inlet (311) of the first water outflow passage (31) is communicated with an upper space (33) of a water inlet (321) of a second water outflow passage (32). The water division body (20) is disposed on one side of the housing (10) close to the water inflow end (11). The first cooperative portion and the second cooperative portion can be connected in a relatively and rotatably cooperating manner, and are used for limiting to each other. The water guide body (30) is disposed on one side of the housing (10) close to the water outflow end (12). The water guide body (30) and the housing (10) are fixed to each other. The flow guide hole (21) is communicated with the first water outflow passage (31) or the second water outflow passage (32) along with the relative rotation between the a water division body (20) and the water guide body (30), so as to generate two kinds of air-borne water outflow sprays. The outflowing water control device has a compact structure, a small volume and good sealing performance.\nB: A micro-bubble acquisition apparatus, comprising a first body (1), the first body (1) being provided with a water inlet channel (2), a water outlet channel, a vortex chamber (3) connecting the water inlet channel (2) with the water outlet channel, and an air inlet channel (11) in communication with the vortex chamber (3), the axis of the vortex chamber (3) and the axis of the water inlet channel (2) being offset, the vortex chamber (3) being provided with a water inlet (12) in communication with the water inlet channel (2), and the water inlet (12) being arranged on the side of the axis of water inlet channel (2) facing away from the axis of the vortex chamber (3). The present apparatus can reduce obstruction to the water flow whilst avoiding increasing the volume of the micro-bubble acquisition apparatus.\nC: A composite filter cartridge (1), and a water purification device. The composite filter cartridge (1) comprises: a housing (10), internally provided with a filter cavity; an isolation assembly (20), arranged within the filter cavity, and separating the filter cavity into a first filter cavity (10a) and a second filter cavity (10b) which are independent of one another, the housing (10) being provided with a first water inlet (111) and a first water outlet (112) which are in communication with the first filter cavity (10a), and a second water inlet (113) and a second water outlet (114) which are in communication with the second filter cavity (10b); a first filter cartridge (30), arranged within the first filter cavity (10a), and located between the first water inlet (111) and the first water outlet (112); a second filter cartridge (40), arranged within the second filter cavity (10b), and located between the second water inlet (113) and the second water outlet (114).\nD: A water purifier, comprising: a water purifier body (10), and a water faucet connector (30) connected to the water purifier body (10) via a calandria assembly (20). The water purifier body (10) is provided with a water purifier water inlet and a water purifier water outlet. The calandria assembly (20) at least comprises a calandria water inlet pipeline and a calandria water outlet pipeline. The water faucet connector (30) is at least provided with a first water inlet (31), a first water outlet (32), a second water inlet (33) and a second water outlet (34). The first water inlet (31) is connected to the first water outlet (32). The first water outlet (32) is connected to a first end of the calandria water inlet pipeline, and a second end of the calandria water inlet pipeline is connected to the water purifier water inlet; and the water purifier water outlet is connected to a first end of the calandria water outlet pipeline, a second end of the calandria water outlet pipeline is connected to the second water inlet (33), and the second water inlet (33) is connected to the second water outlet (34). The water purifier has the advantages of simplifying an installation process and improving installation efficiency.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multi-stage treatment method and device for biomedical wastes and a recycling method of the treated wastes. The multi-stage treatment method comprises the following steps: (1) carrying out the first stage of disinfection treatment on biomedical wastes using a hyperoxide disinfectant with concentration of 0.1-0.5% while comminuting the biomedical wastes; (2) carrying out the second stage of disinfection treatment on the biomedical wastes having residual hyperoxide disinfectant after the first stage of disinfection treatment, wherein the second stage of disinfection treatment refers to steam sterilizing heat treatment or disinfection using a high-concentration hyperoxide disinfectant with concentration of 5-20%. The method has the advantages of good sterilizing effect and short sterilizing time; the recycled product can be applied to decoration, isolation, building materials, containers and can be used as an alternative of cement.\nA: An industrial solid waste treatment apparatus, comprising a baseplate (1), a feeding device (2), a first treatment structure (3), a first recovery device (4), a lifting device (5), a second treatment structure (6), a drying device (7), a holder device (8) and a second recovery device (9). With the industrial solid waste treatment apparatus, industrial solid waste can be crushed. The crushed waste is treated with some disinfectants or treating fluids so as to prevent the propagation of harmful substances thereon and protect the environment. Materials such as iron in the waste can also be reacted with sulphuric acid so as to facilitate the recovery thereof and reduce wasting of resources.\nB: The present invention relates to the technical field of disinfectants for livestock and poultry, and disclosed thereby is a compound hydrogen peroxide disinfection diluent. The diluent is a solution containing 10-20 wt% of a compound hydrogen peroxide disinfectant. The compound hydrogen peroxide disinfectant is prepared from the following components in weight percentage: 21-25.5% of hydrogen peroxide, 9.9-19.8% of acetic acid, 0.3-1% of etidronic acid, and 0.1-1.5% of dodecyl dimethyl benzyl ammonium chloride and/or dodecyl dimethyl benzyl ammonium bromide, the rest being water. The diluent has strong disinfecting capabilities, is harmless to the human body and the environment, and achieves the effect of quick cleaning and disinfection in a general operation environment, while guaranteeing that the disinfectant is less harmful to the human body and the environment. Meanwhile, further provided by the present invention is a special use of the described diluent and a method for disinfecting the surface of an egg by employing the described diluent.\nC: Provided are a chitosan derivative-based disinfectant and a preparation method therefor. The disinfectant comprises 0.05 to 10 g of chitosan derivative and 100 ml of sterilized deionized water. The disinfectant can be used as a bactericidal disinfectant in medical treatment and can be used for disinfection of skin or mucous membranes and the like.\nD: Disclosed in the present invention are an apparatus and method for using biomedical waste. The method comprises two stages of chemical disinfection of the biomedical waste, and cyclic utilization of solids and liquids. Also disclosed are novel processes for preparation and recycling of a disinfectant which is rich in free radicals and recyclable, thereby achieving zero liquid discharge. Also disclosed are a method, process, and apparatus for thermally decomposing solid waste into fuel under an air-free condition. Thus, solid discharge is zero, air pollution is minimized, and carbon emissions are low.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a roller mill, which comprises: a shell (10), the shell (10) being provided with a feed port (11) and a discharge port (12); a main shaft (20) which is provided in the shell (10) rotatably in a penetrating manner; a drive device (30) which is connected to the main shaft (20) in a driving manner; a bracket (40) which is installed on the main shaft (20); two or more than two grinding rollers (50), each of the grinding rollers (50) is rotatably installed on the bracket (40) around a shaft axis thereof; and a grinding disk (60) which is fixedly installed in the shell (10) and is opposite to the positions of the plurality of grinding rollers (50). The roller mill also comprises an axial position adjustment device (70) which is connected to the main shaft (20) and is used for driving the main shaft (20) to move in an axial direction so as to adjust the position of the main shaft (20). The roller mill has a simple structure and can adjust a rolling gap conveniently.\nA: A motor drive apparatus, comprising a casing (10), a bottom housing (20) rotatably mounted within an open end of the casing (10), and a crank (30), a mounting cavity being formed between the casing (10) and the bottom housing (20), a first end of the crank (30) being rotatably mounted within the end of the casing (10) away from the bottom housing (20). The apparatus also comprises a central shaft (40) arranged along the axial direction of the bottom housing (20) and passing through the bottom housing (20), and an eccentric motor (50), a cycloid gear speed reduction mechanism (60), a first clutch mechanism (70) and a second clutch mechanism (80) arranged within the mounting cavity, a first end of the central shaft (40) extending into the mounting cavity and being mounted within the first end of the crank (30), two ends of the eccentric motor (50) being respectively rotatably mounted on the casing (10) and the bottom housing (20), the cycloid gear speed reduction mechanism (60) being sleeved on the outer periphery of the eccentric motor (50), the first clutch mechanism (70) being rotatably mounted on the casing (10) and being capable of driving the casing (10) to rotate, the second clutch mechanism (80) being sleeved on the outer periphery of the first end of the central shaft (40) and mounted on the casing (10). The apparatus may be mounted on a central shaft position of an existing bicycle frame.\nB: A spindle structure. The spindle structure comprises a spindle core (10), a bearing structure (20), and a bearing base (30); the bearing base (30) is provided with a communication channel, the spindle core (10) is provided on the communication channel in a penetrating manner, the bearing structure (20) is provided in the communication channel, and the bearing structure (20) is sleeved on the spindle core (10); a spacer ring positioning structure (40) comprises a female spacer ring (41) and a sub-spacer ring (42), the sub-spacer ring (42) is sleeved on the spindle core (10), and an external thread is provided on the sub-spacer ring (42); the inner ring of the female spacer ring (41) is provided with an internal thread adapted to the external thread, and the female spacer ring (41) is rotatably provided on the sub-spacer ring (42) to drive the sub-spacer ring (42) to move. A driving member (50) comprises an operating section (51) and a driving section (52) connected to each other, the driving section (52) is provided with a first tooth-shaped portion (53), and the female spacer ring (41) is provided with a second tooth-shaped portion (43) adapted to the first tooth-shaped portion (53); the driving section (52) is movably provided in the communication channel of the bearing base (30) and matches the female spacer ring (41), and the operating section (51) penetrates out of the bearing base (30) and is located on the outer side of the bearing base (30). The structure can solve the technical problem in the related art that it is inconvenient to adjust the bearing pre-tightening force of the spindle structure. The present invention also relates to a machine tool comprising the spindle structure.\nC: A power tool, comprising: a housing (10), a motor (14), a main shaft (40) powered by rotational power output by the motor (14), and a chuck (20) comprising a core body (21) connected with the main shaft (40), a plurality of jaws (22) movably arranged within the core body (21), and a chuck operation sleeve (23) arranged outside the core body (21) and capable of operably driving the jaws (22) relative to the core body (21) and thereby being able to lock or loosen tool bits held in the core body (21). The chuck (20) further comprises a locking assembly (24) located inside the chuck operation sleeve (23), said locking assembly (24) itself comprising a locking piece (242) movable relative to the core body (21); the chuck operation sleeve (23) operably drives the locking piece (242) along the axial direction of the core body (21) between a first position and a second position; when the locking piece (242) is in the first position, said locking assembly (24) allows the core body to rotate relative to the housing (10); when the locking piece (242) is in the second position, the locking assembly (24) prohibits rotation of the core body (21) relative to the housing (10). By integrating the tool-bit locking functions, the chuck (20) of the present power tool affords tools provided with said chuck (20) shorter overall length as there is no need to arrange an additional locking device on the housing (10).\nD: Disclosed is an external circulation roller type vertical mill, wherein a partition plate (16) is arranged at the middle-upper part of a mill shell and divides the mill shell into a powder grinding barrel (29) and a powder selecting barrel (12); a powder selecting machine is arranged in the powder selecting barrel (12), an outlet of a powder selection coarse-powder ash hopper (14) of the powder selecting machine penetrates the partition plate (16) and extends into the powder grinding barrel (29), and an air inlet (15) is provided in the lower part of the powder selecting barrel (12); and a grinding disc (20) and a grinding roller (18) are arranged at the lower part of the powder grinding barrel (29), a nozzle ring (22) is arranged between the outer circumference of the grinding disc (20) and the mill shell, a discharge ring channel (23) is arranged at the lower part of the nozzle ring (22), a discharge port (25) is further provided in the bottom of the discharge ring channel (23), and a feeding pipe (6), used for feeding materials into the powder selecting barrel (12) by means of a material lifting mechanism, of the powder selecting machine is further arranged at the discharge port (25).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method of selectively separating a coal slurry with poor floatation employing nanobubbles comprises: mixing water (2) and an appropriate amount of a foaming agent (1) evenly and providing the same to a Venturi tube (C) via a pump (B), injecting, via the Venturi tube (C), a flow, to generate a large amount of air bubbles including large bubbles and nanobubbles; providing, to a bubble elimination tub (D), a bubble containing solution (4), wherein while the larger bubbles having greater buoyancy ascend to a surface of the solution and then burst, the nanobubbles having less buoyancy are blended into the solution and move with a water flow; providing, to a normal mixing tub (F), a nanobubble-containing solution (5), coal slurry (7), and an appropriate amount of a floatation solvent (8) to mix the same, and selectively separating, by a floatation column (H), the mixed coal slurry (9), to produce refined coal (10) and tailings (11).\nA: Disclosed is a dual-fluid colliding jet-type micro-nano-bubble generation device, comprising Venturi tubes, wherein two Venturi tubes are provided. The device has the beneficial effects that the device uses a dual-fluid colliding-type structural design; collision occurs between two fluids containing micro-nano-bubbles, and thus a turbulence intensity being 1.5-3 times higher than that of traditional single-tube jets is formed to promote micro-nano secondary crushing, such that there are more micro-nano-bubbles generated, and the grain size becomes uniform; by means of collision between two foam fluids, a diffusion mode of the micro-nano-bubbles changes to a 360-degree annular disk form, thereby facilitating diffusion of the micro-nano-bubbles; a counter-acting force of a water body on the device is small due to a special collision-type structural design; therefore, when the device works underwater, other fixing devices are not needed, thereby greatly improving convenience; and compared with a traditional single-tube Venturi tube device, the present invention requires lower energy consumption in the case of requiring the generation of the same number of micro-nano-bubbles of the same grain size.\nB: A preparation method using micro-nano bubbles as crystal seeds to induce spherical or spherical-type silver powder production, said method specifically comprising the steps of: pre-adding a prepared dispersing agent solution to a reaction vessel, starting a micro-nano bubble generator, producing controllable micro-nano bubbles (0.1nm-900nm) in the dispersing agent solution within the reaction vessel, simultaneously adding a prepared oxidising solution (an aqueous solution containing silver ions or a silver ammonia solution) and a reducing solution (an aqueous solution containing one or a plurality of hydroxylamine compounds, vitamin C, formaldehyde or hydrazine hydrate), performing a reduction reaction under vigorous stirring, and using the pre-generated micro-nano bubbles within the dispersing agent solution as crystal seeds, the micro-nano bubble crystal seeds effectively controlling the particle size of reduced silver particles throughout the reduction reaction. The method effectively controls the particle size of the silver powder during production, and also controls the crystal nucleus growth rate and dispersibility. The produced silver powder has excellent crystallinity and sphericity, high tap and high dispersibility, and in particular, the silver powder particle internal loose structure significantly aids the activity of the silver powder.\nC: A high-ash fine coal slime separation device and method. The device comprises a columnar structure. A top end of the columnar structure is internally provided with a foam water spray device (1). The bottom of a clean coal overflow tank (2) is provided with a clean coal discharge port (B). A feed pipe (5) is axially arranged at the circle center of the columnar structure and the feed pipe (5) is provided with a material inlet device. Two groups of filling devices (3) are respectively arranged on the feed pipe (5) in series, and the filling devices (3) are closely arranged cylindrical structures. The cylindrical structures are vertically through. Internal adhesion walls are provided with an internal spray water washing device (6) matching a flotation column body (4). A middlings discharge device (7) is arranged below the flotation column body (4). A scavenging segment (8) is provided at the bottom of the middlings discharge device (7). An external outlet (E) is sequentially connected to a circulating pump (10) and a micro-bubble generator (9) via a pipeline. A plurality of hydrocyclones (12) are respectively provided above a side wall of the clean coal overflow tank (2). Each of the hydrocyclones (12) is provided with a material inlet connector, and the material inlet connector is connected to a middlings discharge port (C). The high-ash fine coal slime separation device and method can both effectively improve the recovery rate and clean coal quality of a flotation product of high-ash difficult-to-separate coal slime and reduce the loss of coarse particles in coal particles.\nD: A preparation method using micro-nano bubbles as crystal seeds to induce spherical or spherical-type silver powder production, said method specifically comprising the steps of: pre-adding a prepared dispersing agent solution to a reaction vessel, starting a micro-nano bubble generator, producing controllable micro-nano bubbles (0.1nm-900nm) in the dispersing agent solution within the reaction vessel, simultaneously adding a prepared oxidising solution (an aqueous solution containing silver ions or a silver ammonia solution) and a reducing solution (an aqueous solution containing one or a plurality of hydroxylamine compounds, vitamin C, formaldehyde or hydrazine hydrate), performing a reduction reaction under vigorous stirring, and using the pre-generated micro-nano bubbles within the dispersing agent solution as crystal seeds, the micro-nano bubble crystal seeds effectively controlling the particle size of reduced silver particles throughout the reduction reaction. The method effectively controls the particle size of the silver powder during production, and also controls the crystal nucleus growth rate and dispersibility. The produced silver powder has excellent crystallinity and sphericity, high tap and high dispersibility, and in particular, the silver powder particle internal loose structure significantly aids the activity of the silver powder.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a method for determining a floor, a related apparatus and a system. The method comprises: acquiring m atmospheric pressure values and n groups of wireless fidelity (Wi-Fi) information within a pre-set duration, wherein each group of Wi-Fi information comprises identifier information about a wireless access point (AP) and the received signal strength (RSS), and m and n are integers not less than 2 (S401); determining an atmospheric pressure change rate according to at least two atmospheric pressure values among the m atmospheric pressure values (S402); if the absolute value of the atmospheric pressure change rate is greater than a pre-set value, determining k APs for transmitting the n groups of Wi-Fi information and n i  RSSs respectively corresponding to the k APs according to the n groups of Wi-Fi information, wherein k is an integer not less than 1, 1≤n i ≤n, and 1≤i≤k (S403); acquiring floors where the k APs are respectively located (S404); determining two candidate floors according to the floors where the k APs are respectively located and the n i  RSSs respectively corresponding to the k APs (S405); and determining a target floor from the two candidate floors according to the atmospheric pressure change rate (S406).\nA: A method and device for determining stripe consistency, which relate to the technical field of computers and are capable of reducing the network resources consumed for determining stripe consistency. The method comprises: an operational node acquires n groups of CRC data blocks corresponding to a target stripe, the target stripe comprising n first data blocks having k original data blocks and m EC data blocks of the k original data blocks, the n groups of CRC data blocks being respective CRC data blocks of n groups of second data blocks, and a group of second data blocks comprising m transformation results obtained by m EC transformations on a first data block, wherein k and m are positive integers, and n=m+k; the operational node determines whether the n groups of CRC data blocks fulfill a linear relationship; and if the n groups of CRC data blocks fulfill the linear relationship, the operational node determines that the target stripe has stripe consistency.\nB: Provided are an image processing method and apparatus, and an electronic device. The method comprises: acquiring an image to be subjected to detection (101); respectively determining, in the image, first detection frames for representing the faces of target objects and second detection frames for representing the bodies of the target objects, wherein there are M first detection frames and N second detection frames (102), and M and N are both non-negative integers; determining K first detection frames and K second detection frames, which satisfy matching relationships, from among the M first detection frames and the N second detection frames (103), wherein K is a non-negative integer, K is less than or equal to M, and K is less than or equal to N; and determining the number of target objects in the image on the basis of M, N and K (104).\nC: Provided are an information sorting method and an electronic device, which relate to the field of terminal artificial intelligence. The method comprises: an electronic device first performing a search according to a keyword in a search request of a user, so as to acquire labels of N candidate objects, wherein the candidate objects may be candidate applications and/or candidate services; then calculating the semantic similarity degree between the keyword and each of the labels of the N candidate objects; and determining, from the labels of the N candidate objects, labels of M candidate objects corresponding to semantic similarity degrees which are greater than a set threshold value. Since labels of K candidate objects among the labels of the M candidate objects correspond to target objects which are installed on K devices and have the same attribute, the electronic device can sort the K candidate objects according to the semantic similarity degrees between the keyword and the labels of the K candidate objects, and device states of the K devices, and display a recommendation interface that comprises a sorting result. In this way, the improvement of the search efficiency is facilitated, thereby improving the user experience.\nD: Provided is a method for determining a floor of a terminal device. The method comprises the following steps: S1, generating reference floor air pressure data; S2, segmenting a map coordinate system, and establishing a city-level raster air pressure database; S3, tagging raster data with commercial labels; S4, marking each raster with the difference between reference air pressure and floor height air pressure; and S5, determining a floor according to device air pressure. The present invention has the advantages that a method for solving the determination of a building floor is creatively provided, a floor where a device is located can be accurately calculated according to atmospheric pressure and detection data of a device sensor, and the whole process of the method is rapid, intelligent and accurate.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA temperature and humidity sensor mounting structure, comprising: a temperature and humidity sensor assembly (1) and a gas pipe (2); the temperature and humidity sensor assembly (1) is suspended in the gas pipe (2) and is fixed and sealed by means of a sealant; the temperature and humidity sensor assembly (1) comprises a temperature and humidity sensor (11) provided with a temperature and humidity chip (111) and a temperature and humidity sensor mounting member (12), the temperature and humidity sensor (11) being inserted from one end of an accommodating groove (121) on the temperature and humidity sensor mounting member (12) and extending to a notch (1211) at the other end of the accommodating groove, and the two being fixed by means of the sealant, the sealant being coated on the periphery of the temperature and humidity chip (111), and the temperature and humidity chip (111) being in contact with gas in the gas pipe (2) at the notch (1211) in order to sense the temperature and humidity of the gas.\nA: A flexible passive wireless integrated humidity and pressure sensor, comprising an interdigital capacitive humidity sensor and an interdigital capacitive pressure sensor, wherein a humidity sensitive thin film (1), an upper metal layer (2), a flexible substrate (3), a middle metal layer (4), a medium layer (5), a lower metal layer (6) and a packaging layer (7) are successively arranged from top to bottom; the upper metal layer (2) comprises a humidity sensitive capacitor (21); the middle metal layer (4) comprises a pressure sensitive capacitor (44); the interdigital capacitive humidity sensor comprises the humidity sensitive thin film (1), the humidity sensitive capacitor (21) and the flexible substrate (3); the interdigital capacitive pressure sensor comprises the flexible substrate (3), the pressure sensitive capacitor (44), the medium layer (5), the lower metal layer (6) and the packaging layer (7). In the present integrated sensor, the humidity sensitive capacitor (21), the pressure sensitive capacitor (44), two plate capacitors and an inductance (23, 25) are connected to form a double resonance circuit. Real time wireless monitoring of the two parameters consisting of humidity and temperature is achieved, and two frequency signals do not interfere with each other. The measurement accuracy is high, and the sensor may be suitable for more environments.\nB: A smart cup holder, comprising a cup holder body (1). The cup holder body (1) is a frusta-conical body with a large upper diameter and a small lower diameter; a pressure sensor (11) and a temperature and humidity sensor (12) are provided at the bottom of the cup holder body (1); a non-slip layer (13) is provided on the inner side wall of the cup holder body (1); a notch (14) is provided on the side wall of the cup holder body (1); a handle sleeve (15) for wrapping a handle is provided on the outer side wall of the cup holder body (1); a touch sensor (151), a processor, and a power module are provided on the handle sleeve (15); the pressure sensor (11), the temperature and humidity sensor (12), and the touch sensor (151) are separately connected with the processor; the pressure sensor (11), the temperature and humidity sensor (12), the touch sensor (151), and the processor are separately connected with the power module. By detecting relevant data by means of the pressure sensor (11) and the temperature and humidity sensor (12), and feeding the detected relevant data back to the processor for comprehensive analysis, the present invention can calculate the amount of water a user drinks and can also prompt the user to drink water. Moreover, the smart cup holder can prevent water from entering to influence the electrical performance.\nC: Disclosed is an intelligent quilt and bed sheet system, comprising a quilt body (1) and a bed sheet (2), wherein a first temperature and humidity sensor group for detecting the temperature and humidity of a human body, and a first main board (12) connected to the first temperature and humidity sensor group are arranged inside the quilt body (1); a first CPU (121), a first power supply module (122) for providing power to the first CPU (121), and a wireless transmission module (123) for transmitting data are respectively arranged on the first main board (12); a second temperature and humidity sensor group for detecting the temperature and humidity of a human body, and a second main board (22) connected to the second temperature and humidity sensor group are arranged inside the bed sheet (2); and a second CPU (221), a second power supply module (222) for providing power to the second CPU (221), a wireless receiving module (223) for receiving data, and an alarm module (224) are respectively arranged on the second main board (22), so the coverage situation of the quilt can be monitored.\nD: A cigarette holder (40). The cigarette holder (40) comprises an upper cover body (41), a sensor component (42) and a base (43). The upper cover body (41) and the base (43) separately have a hollow structure which is through at the two ends, the upper cover body (41) sleeves one end of the base (43), and an inner cavity of the cigarette holder (40) is defined by an inner surface of the upper cover body (41) and an inner surface of the base (43) together; the sensor component (42) is fixed in the inner cavity of the cigarette holder (40), and a gas through gap (46) is provided in the inner cavity of the cigarette holder (40); the sensor component (42) comprises at least one sensor (421); and the sensor (421) is a temperature sensor, a humidity sensor or a temperature and humidity sensor, and is used for detecting the temperature and/or humidity of smoke. Provided is an atomizer (50) provided with the cigarette holder (40) at one end. Also provided is an electronic cigarette (200) comprising the atomizer (50). The cigarette holder (40) can detect the temperature and/or humidity of smoke in real time.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are an encoder measurement and calibration method, device, and apparatus as well as a storage medium, wherein the method comprises: obtaining in advance a deviation curve function of an encoder relative to a standard encoder; wherein, the deviation curve function is a curve function obtained by curve fitting for each fitting point after performing linear regression processing on the deviation waveform of the measurement deviation value of the encoder and the standard encoder that changes with the position point in a measurement period, to obtain multiple fitting points on the linear regression curve; and calibrating all test data according to the deviation curve function. The method obtains in advance a deviation curve function that can characterize a deviation change trend between the measured value of the encoder and the measured value of the standard encoder, and calibrate the measurement value of the encoder on the basis of the deviation curve function, and thus improve the accuracy of the encoder.\nA: An encoder fault detection method. An encoder is provided with a first proximity switch (SQ-A) and a second proximity switch (SQ-B) for angle measurement. The method comprises: according to output signals of a first proximity switch (SQ-A) and a second proximity switch (SQ-B), obtaining the respective number of pulses of the first proximity switch (SQ-A) and the second proximity switch (SQ-B) (S302); determining fault information of the encoder according to the obtained numbers of pulses (S304). The method solves the problem in the prior art of the poor reliability of an encoder fault detection mechanism. Meanwhile, this detection mechanism can be implemented without the cooperation of a third proximity switch on the encoder, thereby reducing the cost of the encoder. Also disclosed are an encoder fault detection device and an encoder fault detection system.\nB: The present invention relates to the technical field of fluorescence immunodetection, and more specifically relates to a method for fluorescence immunoassay analyzer inter-instrument deviation calibration; logarithm operations are performed on n number groups obtained by a test machine and a reference machine; subsequently, curve fitting is performed, and a corresponding fitted curve function is obtained; during actual testing, real measured data is substituted, after a logarithm operation, into the fitted curve function, and a corresponding value is obtained; and last, exponentiation calculation is performed, and a calibrated numerical value is obtained. By means of the present calibration method, deviation of numerical value obtained after calibration are all within 3%, regardless of whether a fluorescence signal intensity value is low or a fluorescence signal intensity value is high, and calibration deviation is extremely low; the present method is very suitable for a common low value interval fluorescence immunodetection indicator, has a broad scope of suitability, causes a final detection result to be more accurate and detection accuracy of an instrument to improve, and effectively solves the problem in a current calibration method where calibration deviation is too large when a fluorescence signal intensity value is low.\nC: Provided are a method for improving the resolution of a laser turntable, and a robot system. Said method comprises: acquiring a coder pulse signal generated by a coder and a corresponding chip clock pulse signal during triggering of the coder pulse signal, and acquiring a corresponding chip clock pulse signal and coder pulse signal during triggering of a laser reflection signal (S2); and according to a proportional relationship between a chip clock pulse frequency and a coder pulse frequency, using the chip clock pulse signals to subdivide the coder pulse signal, so as to calculate a high-precision deflection angle value corresponding to each reflective marker, the chip clock pulse frequency being higher than the coder pulse frequency (S3). As the chip clock pulse frequency is higher than the coder pulse frequency, the pulse generated by a chip clock is used to subdivide the pulse of a coder, improving the coder precision by using a software solution by means of an existing chip clock, having the technical effect of not increasing the hardware costs.\nD: A pose prediction method, a map construction method, a movable platform, and a storage medium. The method comprises: acquiring a first time period according to a timestamp of the current image frame and a timestamp of a previous image frame (S101); acquiring measurement data of a first encoder and measurement data of a second encoder within the first time period (S102); obtaining a prediction transformation matrix of the current image frame with respect to the previous image frame according to the measurement data of the first encoder and the measurement data of the second encoder within the first time period (S103); and obtaining a predicted pose of the current image frame according to the prediction transformation matrix and pose information of the previous image frame (S104). By applying the encoders to visual SLAM, and predicting the pose of the current image frame by means of the measurement data of the encoders, the accuracy of pose acquisition can be improved, the stability and robustness of visual SLAM is improved, and visual SLAM can still stably operate during visual failure.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for measuring an acoustic parameter of a closed small space. The method comprises the following steps: S1, modeling a sound field by using a finite element method; S2, estimating a sound field distribution in the closed small space; S3, selecting a corresponding microphone and a corresponding loudspeaker, and arranging the microphone and the loudspeaker according to the sound field distribution; and S4, the loudspeaker playing a swept sine signal, receiving a sound signal by using the microphone that matches the loudspeaker, and measuring a spatial response function of a target point location. By means of modelling a sound field in a closed small space and accurately measuring an acoustic parameter thereof, support is provided for research and development of technology related to acoustics in a closed small space.\nA: Disclosed are a data processing method and an AR device, for acquiring, by means of an acoustic method, layout structure information of an environment where the AR device is located. The method of the embodiments of the present invention comprises: performing digital-to-analog conversion on a prestored first digital signal to obtain an analog test signal, and controlling a loudspeaker on an AR device so that same plays a sound wave corresponding to the analog test signal; then, acquiring, by means of a microphone on the AR device, an analog feedback signal corresponding to a feedback sound wave from the sound wave after same is propagated, and performing analog-to-digital conversion on the analog feedback signal to obtain a second digital signal; and finally determining a propagation distance of the sound wave according to the first digital signal and the second digital signal, and further determining, according to the propagation distance, layout structure information of an environment where the AR device is located. In the embodiments of the present application, an AR device obtains layout structure information only by using a loudspeaker and a microphone on the AR device, and does not rely on the intensity of indoor light rays and a visual size, having a wide range of usage scenarios.\nB: A gesture motion determination method and apparatus, an electronic device and a storage medium. The method comprises: acquiring an original audio signal, the original audio signal comprising an original ultrasonic signal and an original voice signal (101); acquiring nonlinear parameters of a loudspeaker (102); performing predistortion processing on the original audio signal according to the nonlinear parameters of the loudspeaker to obtain a predistortion signal, the predistortion signal being transmitted to the loudspeaker, the loudspeaker playing back same to generate a target output signal, and the target output signal being collected by a microphone after being transmitted by a spatial medium (103); acquiring a collected signal collected by the microphone (104); and determining whether a gesture motion exists according to the spectrum characteristics of the original ultrasonic signal and the collected signal (105). The invention can solve the problem of intermodulation distortion when using ultrasonic signals for gesture determination processing, and significantly improve the determination accuracy when using a loudspeaker to perform ultrasonic ranging and related applications in an apparatus.\nC: Disclosed is a distributed voice control system comprising a main body portion (1) and at least two auxiliary portions (2). The main body portion (1) is provided with a master processor (10); a master microphone array (13) connected to the master processor (10) and used for acquiring acoustic signals of a user within the range of a first set distance; and a master loudspeaker (14) connected to the master processor (10) and used for playing a voice message. The at least two auxiliary portions (2) are distributed in different spatial positions, wherein each of the auxiliary portions (2) is in wireless signal connection with the main body portion (1) in a wireless manner, and each of the auxiliary portions (2) is provided with a sub-processor (20), a sub-microphone array (23) connected to the sub-processor (20) and used for capturing acoustic signals within the range of a second set distance, and a sub-loudspeaker (24) connected to the sub-processor (20) and used for playing a voice message. By means of the technical solution above, a distributed system is provided for better capturing and identifying acoustic information at different positions within a spatial range, this being beneficial to the improvement in user experience.\nD: Disclosed is a space radiation sound field acquisition method based on near-field transformation, comprising: firstly, obtaining sound field distribution pM(x0, y0, z0) on a space V0 for a non-directional sound source placed at a point M to be measured in space; secondly, providing a transmitting-receiving combined transducer array L at a near-field position of the space V0, and enabling L to generate sound waves under the action of a weight coefficient function q(xL, yL, zL) to obtain sound field distribution pL(x0, y0, z0) in the space V0; then, adjusting the weight coefficient function q(xL, yL, zL) to make pL(x0, y0, z0)=pM(x0, y0, z0), and ∀(x0, y0, z0)∈V0; and finally, putting any sound source to be measured into the space V0, and using the weight coefficient function q(xL, yL, zL) to weight a sound radiation signal received by the transmitting-receiving combined transducer L, to obtain a radiation sound field of the sound source at M, thereby completing prediction. According to the acquisition method used in the present invention, the sound source at any point in space can be measured and calculated without the need for geometric information of sound source appearance, and therefore, the method is high in accuracy and low in error, and is suitable for non-free-field conditions.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present application relates to a dot matrix spectrum measurement apparatus and method, and an area array chrominance measurement apparatus and method, which relate to the technical field of spectrum measurement. The dot matrix spectrum measurement apparatus comprises an objective lens, which is used for imaging a target; a dot scanning assembly, which is used for collecting, in the form of a two-dimensional dot matrix, an image of the target that is formed by means of the objective lens, so as to obtain two-dimensional dot matrix light, converting the two-dimensional dot matrix light into one-dimensional dot matrix light and then emitting same; and a collimation and dispersion assembly, which is used for performing collimation processing, dispersion processing and focusing processing on the one-dimensional dot matrix light; and an imaging assembly, which is used for imaging the one-dimensional dot matrix light that has been subjected to collimation processing, dispersion processing and focusing processing, so as to obtain spectrum information of each beam of light in the two-dimensional dot matrix light. By means of the present application, two-dimensional dot matrix light is converted into one-dimensional dot matrix light, and spectrum information of each beam of light in the two-dimensional dot matrix light is obtained in combination with collimation and dispersion processing, such that the present application can be applied in spatial multi-dot spectrum testing, and the spectrum test efficiency is improved.\nA: Provided is a spectrometer, comprising: a collimating element (2) for converting a broadband beam into parallel light; a dispersion device (8) for dispersing the parallel light into a plurality of beams of dispersed light based on the wavelengths thereof; a focusing element (5) for focusing dispersed light with the same wavelength, the focusing element (5) focusing dispersed light with different wavelengths onto different positions in a focal plane, and focal spots of all the dispersed light being arranged along a straight line; and a detecting device (6) performing detection at a plurality of positions in the focal plane, the detecting device being used for detecting multiple types of dispersed light with different preset wavelengths. When an incident angle of the parallel light incident to the dispersion device (8) is fixed, the dispersion device (8) and the focusing element (5) cooperate with each other in such a manner that the focusing positions of the multiple types of dispersed light with different preset wavelengths and the multiple detection positions are in one-to-one correspondence; and the difference between the wave numbers of any two adjacent beams of the dispersed light among the dispersed light with the different preset wavelengths is equal, thereby greatly reducing the number of operations during imaging by means of the spectrometer, saving on the imaging time, and improving the imaging speed.\nB: A light source structure (1), used for transmitting a light beam to a target object to be sensed to carry out three-dimensional sensing. The light source structure (1) comprises a semiconductor substrate (10) and multiple light-emitting units (12) formed on the semiconductor substrate (10). The light-emitting units (12) are distributed, in the form of a two-dimensional lattice, on the semiconductor substrate (10). At least three adjacent light-emitting units (12) are arranged at unequal intervals on the semiconductor substrate (10). The peak value of the overall normalized correlation coefficients between the light-emitting units (12) is greater than or equal to 0.3 but is less than 1.\nC: The present application is applicable to the technical field of three-dimensional imaging, and particularly relates to a three-dimensional imaging method, apparatus, and terminal device. The three-dimensional imaging method comprises the two parts of real-time processing and post-processing. The real-time processing part comprises: acquiring a two-dimensional image collected by an imaging unit during a three-dimensional scanning process, performing fast processing on the two-dimensional image, and calculating the position of the imaging unit and a three-dimensional point cloud under multiple channels in real time. The post-processing part comprises performing secondary processing on the collected two-dimensional image so as to obtain a complete three-dimensional point cloud under each channel, and reconstructing a three-dimensional model of a target object according to the complete three-dimensional point cloud. In the embodiments of the present application, multi-channel feature information is used to acquire three-dimensional point cloud data of the target object. Since the acquired original data is more comprehensive, the obtained three-dimensional model is more accurate, and the accuracy of three-dimensional data reconstruction is improved.\nD: A depth information image acquisition apparatus and an electronic device (400). The present application is simple in structure, can reduce device power consumption, and facilitates the improvement of outdoor use effect. The apparatus comprises: multiple two-dimensional optical phase modulation structures (110), each two-dimensional optical phase modulation structure (110) comprising a substrate (111) and a protrusion (112) disposed on the substrate (111), and being used for performing spatial phase modulation on an optical signal reflected by an object; and an optical sensor that is disposed below the multiple two-dimensional optical phase modulation structures (110) and comprises multiple pixel arrays (120). The multiple pixel arrays (120) correspond one-to-one to the multiple two-dimensional optical phase modulation structures (110). A pixel array (120) is used for receiving the optical signal modulated by the corresponding two-dimensional optical phase modulation structure (110). A pixel array (120) comprises multiple pixels. The intensity distribution of optical signals received by the multiple pixels is used for determining the incident angle of the optical signal incident on the corresponding two-dimensional optical phase modulation structure (110), and the incident angle is used for determining depth information of an object image.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA pair of intelligent color-changing eyeglasses (100) comprises a frame (1). The intelligent color-changing eyeglasses (100) further comprises a color-changing lens (4), a control device (5), and a light-emitting device (6). The control device (5) and the light-emitting device (6) are arranged in the frame (1), and the frame (1) surrounds the edge of the color-changing lens (4) to fix the color-changing lens (4). The control device (5) is electrically connected to the light-emitting device (6), to control the light-emitting device (6) to emit light. The light-emitting device (6) is used to emit light onto the color-changing lens (4) to cause color-changing of the color-changing lens (4). By using the light-emitting device (6) to emit light onto the color-changing lens (4) to actively change the color of the color-changing lens (4), the intelligent color-changing eyeglasses (100) can prevent strong sunlight from being shone into the eyes before a user goes outside. Moreover, by using a defogging device (3) to remove fog on the color-changing lens (4), the present invention effectively avoids blurry eyeglasses caused by fog.\nA: An in vitro diagnostic analysis system, and an optical detection apparatus. The optical detection apparatus comprises a lens module (10), a light source module (20), a detection module (30) and a driver. The lens module (10) comprises a first mounting unit (100), a dichroscope (200), an excitation sheet (300) and an emission sheet (400), wherein the dichroscope (200) and the excitation sheet (300) are arranged, spaced apart from each other, on the first mounting unit (100), and the dichroscope matches the excitation sheet (300) to form an excitation light path; and the dichroscope (200) and the emission sheet (400) are arranged, spaced apart from each other, on the first mounting unit (100), and the dichroscope matches the emission sheet (400) to form an emission light path. The light source module (20) comprises a second mounting unit (22) and a light-emitting member (24), wherein the light-emitting member (24) is arranged on the second mounting unit (22), and the light-emitting member (24) and the excitation sheet (300) are arranged spaced apart from each other. The detection module (30) comprises a third mounting unit (32) and a detection element (34), wherein the detection element (34) is arranged on the third mounting unit (32), and the detection element (34) and the emission sheet (400) are arranged spaced apart from each other. The driver is used for driving the first mounting unit (100) to move.\nB: Provided are a photochromic lens comprising a lens (10) and a photochromic thin film (20). The lens (10) comprises a first face (101) and a second face (102). When the first face (101) is an incident face, the second face (102) is a refractive face, and when the second face (102) is an incident face, the first face (101) is a refractive face. The photochromic thin film (20) comprises a first region (201) and a second region (202). The photochromic thin film covers the first face (101) or the second face (102). The first region (201) uses a negative photochromic material, and the second region (202) uses a positive photochromic material. Also provided are a camera comprising a photochromic lens and a terminal device comprising a camera.\nC: A novel coated optical lens, comprising a lens (2), wherein one side of the lens (2) located at a surface of a convex surface is provided with a protective layer (9), and the protective layer (9) is composed of a color-changing film (5), an anti-wear film coating (6), an anti-radiation film (7), and a waterproof and dustproof film (8). The color-changing film (5) covers a surface of the anti-wear film coating (6), and the anti-wear film coating (6) is provided at a surface of the lens (2). A surface of the color-changing film (5) opposite to the anti-wear film coating (6) is covered with the anti-radiation film (7). By means of disposing the protective layer (9) composed of the color-changing film (5), the anti-wear film coating (6), the anti-radiation film (7), and the waterproof and dustproof film (8) on a surface of the lens (2), when the lens (2) is being used, the influence of indoor and outdoor light intensity on the lens (2) may be mitigated under the action of the color-changing film (5), and the abrasion resistance may be increased under the action of the anti-wear film coating (6). Under the action of the waterproof and dustproof film (8), water spots may be made to flow to the lens (2) and then quickly drain off, thereby reducing staying time.\nD: A pair of dimmable glasses having Bluetooth headphone functionality. The pair of dimmable glasses comprises a glasses frame (100), a dimmable lens (200), a control apparatus, and Bluetooth headphones (300); the dimmable lens (200) is arranged on a rim (110) of the glasses frame (100); the control apparatus comprises a control circuit board and a power-providing battery electrically connected to the control circuit board which are arranged on a temple (120) of the glasses frame (100); the Bluetooth headphones (300) are arranged on the temples (120) and are electrically connected to the control circuit board; the dimmable lens (200) is either a photochromic lens (220) or a liquid crystal lens (210) electrically connected to the control circuit board. The pair of dimmable glasses having Bluetooth headphone functionality has the capability to dim and undim the lens according to the intensity of light in the environment, and as such can effectively protect human vision.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA wide-field and large-size bionic holographic three-dimensional dynamic display method, comprising: loading on a spatial light modulator (1) a calculation hologram generated in real time; and changing a light path to form a large field angle by means of a micro-lens array (3) arranged on a light-emergent surface of a pixel structure of the spatial light modulator (1) or a diffractive optical element (4) having the same optical characteristics as the micro-lens array (3), wherein each micro-lens in the micro-lens array (3) corresponds to each pixel point (2) of the pixel structure of the spatial light modulator (1) on a one-to-one basis. A field angle for three-dimensional holographic display is enlarged while saving costs and simplifying the design of a system structure, thereby realising reproduction in a large size. Moreover, due to the optimisation of the system structure, pixels on the spatial light modulator (1) can be fully used, thereby avoiding the loss of resolution, and a higher display fineness is provided at the same time, thereby satisfying the increasing demands of people.\nA: A light modulator (10) and a projection display system. The light modulator (10) comprises a surface-angle conversion assembly (11) and a modulation assembly (12). The surface-angle conversion assembly (11) is used for performing surface-angle conversion and converging on multiple light source beams to form multiple convergent beams corresponding to the light source beams, the multiple convergent beams being separated in an angle space. The modulation assembly (12) is used for modulating the multiple convergent beams to form image light; and the modulation assembly (12) comprises multiple pixel units (121); each pixel unit (121) comprises at least three sub-pixels; and the convergent beams respectively enter sub-pixels of the pixel units, and are in one-to-one correspondence with the sub-pixels. The surface-angle conversion assembly (11) comprises a microlens array consisting of multiple microlenses, each microlens being matched with the position of at least one pixel unit to converge the convergent beams to the pixel units (121). The method above can improve the light efficiency, and the present invention is simple in structure and small in volume.\nB: Disclosed are a three-dimensional stereoscopic display panel, and a display method and a display apparatus therefor. The three-dimensional stereoscopic display panel comprises: a first display panel (11), a second display panel (12) and a micro-lens array (13) stacked in sequence, wherein the first display panel (11) and the second display panel (12) have the same light emergent direction, and the micro-lens array (13) is located in the light emergent direction; the distance between the first display panel (11) and the micro-lens array (13) is greater than the focal length of the micro-lens array (13); the distance between the second display panel (12) and the micro-lens array (13) is less than the focal length of the micro-lens array (13); the second display panel (12) is a transmissive display panel; and a real image corresponding to the first display panel (11) and a virtual image corresponding to the second display panel (12) are respectively located at two sides of the micro-lens array, thereby greatly enlarging the depth range of a three-dimensional image. A final three-dimensional image is formed by imaging pixels of two display panels (11, 12), thereby also increasing the resolution of the three-dimensional image.\nC: Disclosed is a wavefront reconstruction device based on extended rotationally symmetric structured light illumination. The device comprises a laser (1), an attenuation mirror (2), a microscope objective lens (3), a pinhole (4), a collimating lens (5), a beam splitter prism (6), a spatial light modulator (7), a lens (8) to be measured, and an image acquisition device (9) that are sequentially arranged. Further provided is a wavefront reconstruction method based on extended rotationally symmetric structured light illumination. According to the method, a spatial light modulator is used to modulate incident parallel light into structured light similar to a phase grating; a modulation pattern of the spatial light modulator is changed, and the characteristic that a pixel unit of the spatial light modulator is not infinitely small is used, such that the spatial light modulator is made to generate different structured light; diffraction light spots are collected on a focal plane, and a target surface and a structured light surface are updated at the same time by using an algorithm, such that not only is a target to be measured recovered, a real structured light wavefront is also recovered, thereby avoiding a recovery error caused by inaccurate known structured light information.\nD: A light modulator and a projection display system. The light modulator (10) comprises a plane-angle conversion assembly (11) and a modulation assembly (12), the plane-angle conversion assembly (11) performs plane-angle conversion on multiple light beams from a light source, to form multiple convergent light beams, and the multiple convergent light beams being separated in a plane space; the modulation assembly (12) modulates the multiple convergent light beams to form image light; the modulation assembly (12) comprises a plurality of pixel units (121), at least four sub-pixels (121a-121d) in the pixel units (121) comprise supplementary sub-pixels, the multiple light beams from a light source comprise supplementary light beams, the supplementary light beams correspond to the supplementary sub-pixels, and the supplementary light beams are used for supplementing the brightness of the light beams incident to the plane-angle conversion assembly (11) or enlarging the color gamut of the light beams incident to the plane-angle conversion assembly (11); the plane-angle conversion assembly (11) comprises a micro lens array composed of a plurality of micro lenses, and the micro lenses match the positions of the pixel units (121).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a full-colour perforated screen for a smart watch. The full-colour perforated screen is provided with perforations. The perforations are used for hands of a smart watch to pass through. The full-colour perforated screen comprises a TP functional sheet (1), an OCA (8), an upper polarizer (2), an upper glass sheet (9), a lower glass sheet (3), a lower polarizer (10), a shading black adhesive (4), a light intensifying film I (5), a light intensifying film II (11), a light scattering film (6), a light guide sheet (12), a light reflecting sheet (7) and a steel sheet (13) from left to right in sequence. A smart watch having the full-colour perforated screen provides a larger operating space for a user and reinforces the user experience.\nA: A dial plate of a smart watch comprises a main body (12), a first screen (14), a second screen (16) and a third screen (18). The first screen (14) is rotatably connected to the main body (12) by means of a first rotating shaft (13), the second screen (16) is rotatably connected to the main body (12) by means of a second rotating shaft (15), and the third screen (18) is rotatably connected to the main body (12) by means of a third rotating shaft (17). The second rotating shaft (15) and the third rotating shaft (17) are opposite and parallel to each other, the first rotating shaft (13) is perpendicular to the second rotating shaft (15), and the vertical distances between the first rotating shaft (13), the second rotating shaft (15) and the third rotating shaft (17) and the main body (12) are sequentially decreased progressively, so that the first screen (14), the second screen (16) and the third screen (18) can be arranged above the main body (12) in an overlaid manner. Also provided is a smart watch. Therefore, the display screen of the smart watch can be expanded.\nB: A method for unlocking a screen of a smart watch comprises: on the basis of a characteristic of rotation of a hand on a dial of a smart watch, implementing an unlocking function for the smart watch by manually controlling the hand to rotate with an angle greater than a preset angle. Also disclosed are a device for unlocking a screen of a smart watch, and the smart watch, so as to solve the problem of affected use experience of a user who uses a smart phone for a long period and is accustomed to unlocking operations due to the fact that an unlocking mechanism is not set in the smart watch.\nC: Disclosed are a smart watch crown and an operating method for a smart watch. A crown is provided on a side face of a smart watch, and the crown is connected to the smart watch via a connecting component. The crown comprises: a crown body, wherein a side face of the crown body is a recessed structure, a concentric shaft is provided in the recessed structure, and the concentric shaft and the connecting component are concentrically connected to the smart watch; the crown body is used for controlling the zooming in or zooming out of a display interface of the smart watch; and the concentric shaft is used for moving the content of the display interface.\nD: A smart watch having a dual-antenna structure, the watch comprising a watch band (3) and a watch case (4). The watch band (3) is connected to the watch case (4). A main board (5) is disposed within the watch case (4). The smart watch further comprises a first antenna structure (1) and a second antenna structure (2). The first antenna structure (1) is disposed at the watch case (4). The second antenna structure (2) is disposed at the watch band (3). The main board (5) is connected to or provided with a detection module (52) for detecting whether the smart watch is in a state of being worn, and a switch module (53) for switching between the first antenna structure (1) and the second antenna structure (2). The first antenna structure (1) and the second antenna structure (2) are connected to the switch module (53). The smart watch having a dual-antenna structure and the control method enable the watch to always select an antenna structure having better performance, such that the antenna performance is not degraded by decreasing bulk of the watch. The antenna performance also effectively improves signal quality and increases battery run-time.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for controlling the alarm clock of a mobile terminal, a mobile terminal, and a storage medium are disclosed in embodiments of the present invention. The method may comprise: when the alarm clock of a mobile terminal rings, the mobile terminal obtains a first state and a second state of the mobile terminal; when the first state satisfies a pre-set first operation condition, the mobile terminal generates, according to the second state, an alarm control command corresponding to the second state; and, the mobile terminal controls the alarm clock according to the alarm control command.\nA: Provided are a method and a device for obtaining application program power consumption information, and a mobile terminal, the method comprising: obtaining an application program running in a mobile terminal; when determined that preset measurement conditions are met, according to the statuses of the mobile terminal and the application program, recording a first time and a first power level of the mobile terminal; when determined that preset measurement conditions are not met, according to the statuses of the mobile terminal and the application program, recording a second time and a second power level of the mobile terminal; and, according to the first time, the first power level, the second time and the second power level, obtaining a first average power consumption information of the application program. The present method obtains the current time and the current power level of the mobile terminal according to whether or not the statuses of the mobile terminal and the application program meet preset measurement conditions, and obtains the power consumption information per unit time according to the current time and the current power level of the mobile terminal, thereby providing reference to the user for rational usage of battery power of the mobile terminal, and enhancing user experience.\nB: The present invention relates to a mobile terminal and a power-saving mode control method therefor. The power-saving mode control method for a mobile terminal comprises: monitoring a battery power level of a mobile terminal; when the battery power level is less than or equal to a power level threshold value, the mobile terminal entering a power-saving mode, wherein entering the power-saving mode comprises: switching a desktop program run by the mobile terminal from a first state to a second state, wherein the number and positions of desktop icons in the second state are consistent with the number and positions of desktop icons in the first state, and the desktop icons of some application programs in the second state are set to be in a disabled state. The mobile terminal and the power-saving mode control method therefor can reduce the memory burden of a user during mode switching, and make it more convenient for the user to adapt to mode switching.\nC: Embodiments of the present invention disclose a sound effect processing method and a mobile terminal. The method comprises: obtaining, when a playing control instruction used for indicating an application of a mobile terminal to play a source audio file is detected, at least one frame of first data generated when the mobile terminal processes the source audio file by means of a global sound effect service; obtaining at least one frame of second data in a current playing process of the application; stopping the global sound effect service if the comparison result shows that the at least one frame of first data does not match with the at least one frame of second data; and playing a first audio file obtained by means of processing the source audio file only according to an application-level sound effect parameter of the application. Embodiments of the present invention also disclose a corresponding mobile terminal. By means of embodiments of the present invention, the fluency for playing an audio stream of a mobile terminal can be improved, memory resource management is optimized, and user experience is improved.\nD: The present invention provides a ringing method and a ringing system for an alarm clock of a smart terminal. The ringing method comprises: wearing a smart terminal to a flat position of the body of a current user; starting, within an interval range of a preset alarm clock time point, an alarm clock ringing program in the smart terminal; determining the current sleep state of the current user; if it is deep sleep, controlling an alarm clock to ring immediately, and gradually increase the ringtone volume; if it is light sleep, controlling the alarm clock to ring at the preset alarm clock time point. The ringing system comprises: a starting module, a determination module and a control module. According to the present invention, an acceleration detector and a microphone in an smart terminal or a wearable device connected to the smart terminal is used, in combination with the user's turnover dynamics and the loudness of snoring, to determine whether the user is in deep sleep or light sleep, and different alarm clock modes are used according to different sleep states, so as to avoid a ring reminder that has adverse effects to the user's body.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA smart base (200) for a watch and a smart watch. The smart base (200) comprises a card holder assembly (210) for installing a SIM card (270), a card cover (220) covering the card holder assembly (210), and a sensor assembly (230) provided on the card cover (220), the sensor assembly (230) being provided to overlap with the SIM card (270); the card holder assembly (210) is used for installing the SIM card (270); and as the sensor assembly (230) is provided on the card cover (220), and when the card cover (220) covers the card holder assembly (210), the sensor assembly (230) is provided to overlap with the SIM card (270). By providing the sensor assembly (230) to overlap with the SIM card (270), the sensor assembly (230) can be installed in the middle of the smart watch without changing the area of the bottom of the smart watch, allowing for a more reasonable structure of the smart watch.\nA: A fingerprint recognition apparatus (200) and an electronic device. The fingerprint recognition apparatus (200) has an ultra-thin thickness and good fingerprint recognition performance, and is applicable to an electronic device in an ultra-thin under-screen space. The fingerprint recognition apparatus (200) comprises: a fingerprint sensor (220); an optical component (210) provided above the fingerprint sensor (220) and used for guiding a fingerprint optical signal to enter the fingerprint sensor (220); a processing unit (240) provided on one side of the fingerprint sensor (220); a circuit board (230) provided with at least one circuit board window (2301, 2302), at least one of the fingerprint sensor (220) and the processing unit (240) being provided in the at least one circuit board window (2301, 2302); the circuit board (230) being used for transmitting signals of the fingerprint sensor (220) and the processing unit (240); and a reinforcing plate (250) provided below the circuit board (230) and used for supporting the circuit board (230). An intermediate frame (101) of the electronic device is provided with a through hole (104). An edge area of an upper surface of the reinforcing plate (250) is fixedly connected to an edge area of a lower surface of the intermediate frame (101) in the through hole (104), so that the fingerprint sensor (220) and the processing unit (240) are mounted in the through hole (104) of the intermediate frame (101) by means of the reinforcing plate (250) and the circuit board (230).\nB: Provided are a smart watch and a method for assembling the same. The smart watch comprises a watchband and a dial plate (30). The watchband is used for assembling a detachable function module (40). The dial plate (30) is built-in with a micro-processor MCU (301). The detachable function module (40) and the MCU (301) can be electrically connected by connecting the dial plate (30) and the watchband through snap pins (501, 502, 503, 601, 602, 603, 701, 702, 801, 802). A detachable function module can be expanded and installed in the smart watch.\nC: A fingerprint recognition apparatus (200) and an electronic device. The fingerprint recognition apparatus (200) comprises: a fingerprint sensor (220); an optical assembly (210) provided on the fingerprint sensor (220) and configured to guide a fingerprint optical signal into the fingerprint sensor (220); a processing unit (240) provided on one side of the fingerprint sensor (220); a circuit board (230) provided with at least one circuit board (230) window, at least one of the fingerprint sensor (220) and the processing unit (240) being provided in the circuit board (230) window; and a reinforcement board (250) provided under the circuit board (230) and configured to support the circuit board (230), the edge of the reinforcement board (250) being bent upward to form an inverted step structure (2501). The upper surface of a middle frame (101) of the electronic device extends downward to form an accommodation area (104). The inverted step structure (2501) of the reinforcement board (250) is configured to be mounted on the edge of the accommodation area (104), such that the fingerprint sensor (220), the processing unit (240), and the circuit board (230) are mounted in the accommodation area (104) of the middle frame (101) by means of the reinforcement board (250).\nD: A liquid crystal display assembly and an electronic device. The liquid crystal display assembly comprises: a touch screen (200), an upper substrate (210) arranged in parallel to the touch screen (200), a lower substrate (220) arranged in parallel to the upper substrate (210), an upper polarizer (240) encapsulated between the upper substrate (210) and the lower substrate (220) and attached to one face, not adjacent to a liquid crystal layer (230), of the upper substrate (210) , and a lower polarizer (250) attached to one face, not adjacent to the liquid crystal layer (230), of the lower substrate (220). The liquid crystal display assembly further comprises: at least one fingerprint recognition sensor (260), at least one proximity light sensor (270) and a control chip (280), wherein the at least one fingerprint recognition sensor (260) and the at least one proximity light sensor (270) are arranged between the upper polarizer (240) and the lower polarizer (250), and each fingerprint recognition sensor (260) is electrically connected to the control chip (280) respectively. The problem of resource waste caused due to the fact that all the fingerprint recognition sensors (260) on the whole liquid crystal display screen are controlled to perform fingerprint recognition can be solved, thereby achieving the effect of saving resources.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA maximum power point tracking device (2), and an assessment method for a solar cell module (10). A decline in maximum power point tracking efficiency within given conditions can be inhibited, and the output power of the solar cell module (10) is increased. The maximum power point tracking device (2) comprises: an MPPT control portion (3), capable of tracking the maximum power point with respect to voltage, current or power, and controlling the voltage, current or power corresponding to the maximum power point; an adjustment portion (4), capable of adjusting a load value of the MPPT control portion (3), when tracking the maximum power point, in correspondence with an action of the solar cell module (10) or an environment-related measurement value.\nA: A Maximum Power Point Tracking (MPPT) method and device for a photovoltaic cell and a storage medium. The MPPT method for the photovoltaic cell comprises: obtaining multiple power points respectively corresponding to different duty ratios of an MPPT controller, and finding a first duty ratio corresponding to a power point having the maximum value in the multiple power points (S102); tracking a first maximum power point of the photovoltaic cell in a single peak way by using the first duty ratio as an initial value, wherein the first maximum power point is used as the maximum power value of the photovoltaic cell (S104); and after tracking of the first maximum power point, determining continually tracking in the single peak way according to predetermined conditions to obtain a second maximum power point, or starting to execute again from the first step, wherein the predetermined conditions comprise at least one of the following: time and power change amplitudes (S106). According to the MPPT method and device for the photovoltaic cell and the storage medium, the technical problem in the related art that the changed maximum power point of the photovoltaic cell cannot be accurately tracked is solved.\nB: A touch control panel (100) and a touch control display device. The touch control panel (100) comprises a glass substrate (101), a solar cell panel (102) located at one side of the glass substrate (101) and comprising a plurality of solar cell modules (105), n first direction sensing lines (103) and m second direction sensing lines (104), which are used for transmitting electric energy converted by the solar cell panel (102), and a detection unit for detecting the current or voltage on each first direction sensing line (103) and each second direction sensing line (104) and determining a touch control region of a touch control object according to the change in the current or the voltage, wherein each of the n first direction sensing lines (103) and the m second direction sensing lines (104) will be connected in series along a corresponding solar cell module (105) in the direction, where m and n are positive integers. The touch control panel (100) reduces the number of conducting wire connections, thereby realizing the light weight of a touchscreen.\nC: A photovoltaic inverter power carrier communications system, comprising a plurality of solar panels (101), a plurality of photovoltaic microinverters (102), a photovoltaic microinverter concentrator (103), a power line (104), and a control center (105); each photovoltaic microinverter (102) of the plurality of photovoltaic microinverters (102) is connected to a corresponding solar panel (101) and is used for collecting real-time status data and performance parameters of the solar panel (101); the photovoltaic microinverter concentrator (103) is connected to the photovoltaic microinverters (102) by means of the power line (104); the control center (105) is connected to the photovoltaic microinverter concentrator (103) and controls and manages the photovoltaic microinverters (102) connected to the photovoltaic microinverter concentrator (103). The communications system uses the power line (104) as a communications medium and acquires in real time information regarding the operating conditions of each photovoltaic microinverter (102), thus accomplishing intelligent management of the photovoltaic microinverters (102); furthermore, the invention does not require the laying of additional communications control lines and is easy to install and implement.\nD: A photovoltaic power generation self-service sun tracking system. A solar cell panel assembly (1) is installed on a rotating shaft (2) through a bracket (4) and a bracket connecting plate (16), the rotating shaft (2) is connected to an output shaft of a seat-type speed reducer (5) through an axial flange, the seat-type speed reducer (5) is installed on a support (7) through a speed reducer base (12), a drive motor (15) is connected to the seat-type speed reducer (5) through a worm and gear drive converter (8) and drives same to operate, the electric power output end of the solar cell panel assembly (1) is connected to an inverter power generation system and a self-service power source generator, the perpendicular planes of the east and west sides of a plane of the solar cell panel assembly (1) are respectively provided with an angle light intensity sensor (6), the electric power output end of the self-service power source generator is respectively connected to a sun tracking processor and a 1° motor driver, the drive motor (15) is connected to the 1° motor driver in an electric control manner, and the angle light intensity sensors (6) and the 1° motor driver are connected to the sun tracking processor in a logic electric control manner. The system can effectively solve the problems of an unstable operating state, a short service life, a high system cost and a high operating cost of the existing self-adaptive sun tracking device.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a method, system, and terminal for face-to-face loan signing, and a computer-readable storage medium. The method comprises the steps of: when a first terminal detects a face-to-face signing request, same acquires face-to-face signing information required in a face-to-face signing process and transmits the face-to-face signing information to a second terminal linked to the first terminal via a preset interface; when the second terminal receives the face-to-face signing information, same acquires identity information of a user corresponding to the face-to-face signing information and agreement information required in the face-to-face signing process; one seated at the second terminal is prompted to review the identity information and the agreement information to produce a review result; the review result and a prestored loan application form are transmitted to the first terminal; and the first terminal completes the face-to-face signing process on the basis of the loan application form and review result received. The present invention implements the connection of systems corresponding to the terminals involved in the face-to-face signing process, the user is only required to bring data required for the face-to-face singing to one designated terminal to complete face-to-face signing, thus increasing the efficiency of face-to-face signing.\nA: A data examination and approval method, comprising: receiving a data application table acquisition request sent by a first terminal, the data application table acquisition request carrying a user identifier corresponding to the first terminal; acquiring examination and approval chains corresponding to the user identifier, and returning the examination and approval chains to the first terminal; receiving a filled-in data application table and a selected examination and approval chain which are returned by the first terminal; sending the filled-in data application table to a corresponding second terminal, and receiving a pre-examination result returned by the second terminal; 当预审结果表示预审通过时，则将数据申请表发送到与所选择的审批链对应的第三终端进行审批；\tif the pre-examination result indicates that the pre-examination is passed, sending the data application table to third terminals corresponding to the selected examination and approval chain for examination and approval; if examination and approval results of the third terminals corresponding to the examination and approval chain all indicate that the examination and approval is passed, storing the user identifier and the data application table in an association manner, and marking the examination and approval result corresponding to the user identifier as passed.\nB: Disclosed are a data interaction processing method, device and system. The method comprises: a first terminal sends requirement information for obtaining target data to a server, so that the server sends the requirement information to at least two second terminals, receives response information generated by the second terminals, and sends second terminal user information to the first terminal; the first terminal receives the second terminal user information, and sends a selection result regarding a second terminal user to the server so as to determine a target second terminal; the server sends an interaction request to the determined target second terminal; the target second terminal receives the interaction request, and sends target data matching the requirement information to the first terminal; the first terminal obtains the target data. The present invention enables the first terminal to select according to requirements a second terminal for target data interaction, thereby improving the flexibility of matching, and increasing the efficiency of a purchasing process.\nC: Disclosed are a data transmission method, a terminal, a storage medium, and a processor. The method comprises: a first terminal sends a verification request to a second terminal, the verification request being used for verifying whether the second terminal and the first terminal are matched; in the case that the second terminal and the first terminal are matched, the first terminal acquires a first key sent by the second terminal; the first terminal encrypts user information stored in the first terminal using the first key; and the first terminal sends the encrypted user information to the second terminal so that the second terminal forwards a plaintext of the user information obtained after decryption to a third terminal, the third terminal processing the plaintext of the user information and then returning the processing result to the second terminal, the second terminal sending the returned processing result to the first terminal, and the first terminal receiving the processing result sent by the second terminal. The present invention solves the technical problem that the existing data transmission technology is low in transmission security.\nD: Provided are a method and apparatus for determining a line of credit, a server and a readable storage medium, and the method is applied to a server. The method comprises: receiving a loan request of a user terminal; in response to the loan request, respectively auditing identity information, credit information and relationship information; and if the identity information, the credit information and the relationship information all pass the audit, determining a line of credit for the loan request based on the credit information and the relationship information. By means of the design, not only can the line of credit of a loaner be improved, but also the risk for a credit platform can be reduced.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present application is applicable to the technical field of image processing, and provides a quantitative detection method and detection apparatus for the degree of cerebral atrophy, and a terminal device. The method comprises: obtaining a first preset number of first template images and target values of the first template images, and marking the target values of the first template images as first target values, the first templates images being brain magnetic resonance images of individuals of preset ages having healthy brains; obtaining a brain magnetic resonance image of an individual to be tested, obtaining an image to be tested, and calculating target values of the image to be tested to obtain second target values; according to the first target values, calculating percentiles of the second target values, and obtaining the degree of cerebral atrophy of the individual to be tested. The described method quantifies the degree of cerebral atrophy, for effective evaluation of the degree of cerebral atrophy.\nA: The present invention relates to the computer vision field. Disclosed are a method and a device for extracting image features. The method comprises: performing gray scale equalization processing on an image to be processed, and selecting a preset number of point pairs from the image that is processed; determining two extraction areas by using two points in a first point pair as centers; obtaining a color quantization matrix and a gradient matrix corresponding to each extraction area; fusing the color quantization matrix and the gradient matrix corresponding to each extraction area to obtain two fusion matrixes; calculating, according to the two fusion matrixes, a scalar value corresponding to the first point pair; calculating scalar values of other point pairs in the same way; and combining scalar values of the preset number of point pairs to obtain a feature vector of the image to be processed. A gradient value can describe a target outline of an image, and a color relates to an object and a scene contained in the image, featuring low dependency on the image and high robustness. Therefore, the present invention uses a gradient value and a color to extract an image feature, which can improve accuracy of the image feature that is extracted.\nB: A lesion part identification method, identification apparatus, computer apparatus and readable storage medium. The method comprises: acquiring a first magnetic resonance image and a second magnetic resonance image by performing magnetic resonance scanning on a preset part of human body by applying different magnetic resonance scanning sequences (101); performing image registration on the first magnetic resonance image and the second magnetic resonance image (102); detecting the registered first magnetic resonance image and second magnetic resonance image by using a trained regression convolutional neural network model to obtain a first preset part area in the registered first magnetic resonance image and a second preset part area in the registered second magnetic resonance image (103); predicting the probability that the first preset part area belongs to a lesion area by using a first convolutional neural subnetwork in a trained dual training convolutional neural network model so as to obtain a first lesion probability, and predicting the probability that the second preset part area belongs to a lesion area by using a second convolutional neural subnetwork in the trained dual training convolutional neural network model so as to obtain a second lesion probability (104); and determining whether the preset part is a lesion part according to the first lesion probability and the second lesion probability (105). The present method may quite accurately identify lesion parts.\nC: The present application is applicable to the technical field of image processing. Provided are a facial detection method and apparatus, and a terminal device and a computer-readable storage medium. The facial detection method comprises: acquiring an image to be subjected to detection, wherein a first facial image is present in said image; performing preliminary detection on said image, so as to obtain a preliminary detection result; if the preliminary detection result indicates that the detection is passed, comparing the first facial image in said image with a target facial image, so as to obtain a comparison result; an determining a final detection result of said image according to the comparison result. By means of the method, the accuracy of facial detection can be effectively improved.\nD: The present application relates to the technical field of sensors, and disclosed thereby are a target detection method and device, which guarantee the reliability of a target detected to thereby improve the accuracy of target detection. The target detection method comprises: according to a first confidence and a second confidence, acquiring a mixed confidence when a first target and a second target are the same target, wherein the first confidence is the reliability of the first target in a first image, the second confidence is the reliability of the second target in a second image, the first image is from a first image capture device, the second image is a surround-view image obtained from images from multiple image capture devices, and the multiple image capture devices comprise the first image capture device; and according to the mixed confidence, outputting a target detection result. The described method and device may be used for target detection and tracking during assisted driving and self driving.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for the voice driving a lip's shape in a cartoon to be changed, and a method and device for obtaining a cartoon of the lip are disclosed by the invention, which belong to the computer field. The method for the voice driving the lip's shape in the cartoon to be changed includes: obtaining an audio signal, and obtaining the motion amplitude scale of the lip's shape according to the characters of the audio signal; obtaining the original model of the lip's shape, and generating the motion amplitude value of the lip's shape according to the original model of the lip's shape and the motion amplitude scale of the lip's shape; generating a set of gridding model of the changing lip's shape according to the motion amplitude value of the lip's shape and a pre-established lip pronouncing model database. The device for the voice driving the lip's shape in the cartoon to be changed includes: an obtaining module, a first generating module and a second generating module. A method and device for obtaining the cartoon of the lip are also provided by the invention. The provided technical solution by the invention is simple in algorithm and less cost.\nA: Provided in the present disclosure are a video conference control method and system, and a mobile terminal and a storage medium. The method comprises: performing image collection on a video conference attendee to obtain an attendee image, and performing facial recognition on the attendee image to obtain an attendee tag; according to the attendee tag, performing tag marking on the attendee image, performing image display on the attendee image which has been subjected to tag marking, and performing lip action detection on the attendee image; and if any attendee image satisfies a preset lip action condition, setting the video conference attendee corresponding to the attendee image to be a conference speaker, and magnifying, in the attendee image, an image corresponding to the conference speaker. By means of the present disclosure, if any attendee image satisfies a preset lip action condition, a video conference attendee corresponding to the attendee image is set as a conference speaker, and an image corresponding to the conference speaker is magnified in the attendee image, such that other video conference attendees can intuitively see the conference speaker of the current video conference, thereby improving the video conference experience of users.\nB: A mouth shape generation method and apparatus, and an electronic device, relating to the technical field of data processing. The method comprises: obtaining the sampling frequency of an audio file and the frame frequency of a video file corresponding to the audio file, the video file including a mouth shape animation (S101); determining an audio vector of the audio file on the basis of the sampling frequency and the frame rate (S102); predicting, by means of a prediction model, a mouth shape coefficient corresponding to the audio vector to obtain a mouth shape prediction value (S103); constructing a minimization objective function on the basis of an actual mouth shape value extracted from the video mouth shape animation and the mouth shape prediction value, the minimization objective function being used for training the prediction model so that the prediction accuracy of the prediction model reaches a preset value (S104); and performing mouth shape prediction on a newly obtained audio file on the basis of the trained prediction model (S105). By means of the method, the accuracy of picture mouth shape synthesis is improved.\nC: A holographic projection system (10) for real-time interactive animation, the system comprising: a motion capturing module (11), comprising at least four image acquisition units (111) and used to capture motion data of an object from at least four angles; an image processing module (12) used to receive and process the motion data in real-time to generate motion drive data, and to drive, according to the motion drive data, rendering of a virtual object to generate. in real-time, animation image data; and a holographic projection module (13) used to project and display the animation image data on a holographic apparatus (131). The present invention further provides a holographic projection method for real-time interactive animation, and artificial intelligence robot (100) employing the holographic projection system (10) and method for real-time interactive animation.\nD: The present application relates to artificial intelligence, and provides a voice activity detection method and apparatus, and a device and a computer-readable storage medium. The method comprises: obtaining an audio signal to be detected, and video data and a reflected wave signal collected during collection of the audio signal; determining frequency spectrum data of the audio signal, and determining a frequency spectrum feature vector of the audio signal according to the frequency spectrum data; extracting image areas where a lip part in the video data is located, and determining a video feature vector of the video data according to each image area; determining a phase difference between the reflected wave signal and a preset transmitted wave signal, and determining a reflected wave vector of the reflected wave signal according to the phase difference; fusing the frequency spectrum feature vector, the video feature vector, and the reflected wave vector to obtain a target feature vector; and inputting the target feature vector into a pre-trained voice activity detection model to obtain a plurality of voice activities of the audio signal. The present application can improve the accuracy of voice activity detection.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn infrared temperature sensing method employing contour extraction for a target object, a device, and a storage medium. The method comprises: detecting a target object according to an infrared temperature sensing apparatus, and obtaining a temperature distribution bitmap; performing image contour extraction, and obtaining at least two contours from a full-sized infrared image; selecting one pixel from the full-sized infrared image, and determining an innermost contour containing the pixel according to the selected pixel, the innermost contour being a target contour; and acquiring related temperature data of the infrared image within the target contour. In the invention, image contour extraction is performed on the temperature distribution bitmap to obtain the at least two contours, and the innermost contour containing the certain pixel is used as the target contour to prevent a portion of unwanted pixels from being included in the contour or a portion of useful pixels from being excluded outside of the contour, thereby improving the precision of displaying temperature distribution details in infrared temperature sensing.\nA: The present invention relates to the technical field of QR codes, and in particular to an recognition method and terminal for a batch of QR codes. The method comprises: extracting all contour data from binarized image data, analyzing all the contour data to obtain an innermost contour corresponding to each piece of contour data, and respectively calculating to obtain centroid coordinates of each innermost contour; respectively calculating distances and angle relationships between the centroid coordinates of each innermost contour and the centroid coordinates of other innermost contours, and dividing the centroid coordinates having equal distances and angles into a same QR code area; and positioning QR codes according to the outermost contour corresponding to the centroid coordinates of the same QR code area. In an recognition process, segmentation and extraction of a plurality of QR codes in a single image are implemented mainly by using positioning point features of the QR codes, so that recognition of the batch of QR codes is implemented.\nB: An object rendering method, device, storage medium, and electronic device are provided. The method comprises: obtaining a two-dimensional image obtained by performing image collection on a target object (S202); recognizing a first pixel point set from all pixel points of the two-dimensional image, pixel points in the first pixel point set being points on a contour of the target object (S204); recognizing one or more second pixel point sets in the first pixel point set by means of calling an image processor, each pixel point in the second pixel point set indicating a line segment of the contour of the target object (S206); and respectively connecting each pixel point in the second pixel point set to form line segments of the contour of the target object, and displaying, according to a preset rendering manner, each connected line segment (S208). The method resolves the technical issue of the related art in which computing resource consumption of a CPU of a computer is large when real-time rendering is performed.\nC: An image dehazing method and apparatus, a device, and a computer storage medium. The method comprises: when an image dehazing instruction is obtained, acquiring in response to same a color image and an infrared image corresponding to a target scene at the same time point, wherein the image dehazing instruction is triggered when there is haze in the target scene (S101); calculating the haze density information of each pixel point on the basis of the pixel value of each pixel point of the color image and the pixel value of each pixel point of the infrared image, the haze density information describing the distribution of haze density in the target scene (S102); generating an image fusion factor of each pixel point according to the haze density information, the image fusion factor being used for controlling the degree of fusion of the color image and the infrared image (S103); and fusing the color image and the infrared image according to the image fusion factors to obtain a dehazed image (S104).\nD: A temperature measurement method, a temperature measurement apparatus, an electronic device and a computer-readable storage medium. The method comprises: acquiring, by means of a visible light camera and a thermal imaging camera, an image frame pair including a target object, wherein the image frame pair comprises a visible light image and an infrared image that are collected at the same moment, and a black body is further arranged in an image collection area of the thermal imaging camera (S202); determining a measured temperature of the target object on the basis of the image frame pair (S204); carrying out black body detection on the infrared image to obtain a detection result of the black body, wherein the detection result comprises position information of the black body in the infrared image (S206); determining a measured temperature of the black body on the basis of the detection result of the black body and the infrared image (S208); and correcting the measured temperature of the target object according to the measured temperature of the black body and a preset temperature of the black body, and taking the corrected temperature as a temperature measurement result of the target object (S210). The accuracy of temperature measurement can be effectively improved.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in embodiments of the present description is a voting system. The system comprises: at least one client device and a plurality of intermediate servers. Each client device presents voting options to a user, receives the selection of the user from the voting options and generates voting data, converts the voting data into a plurality of data fragments by means of a secret sharing algorithm, and transfers the plurality of data fragments to the plurality of intermediate servers, wherein the secret sharing algorithm makes it impossible to reconstruct the voting data from the data fragments, the amount of which being less than a threshold amount. The intermediate servers receive the data fragments from the at least one client device, wherein the data fragments, the amount of which being greater than or equal to the threshold amount, are used for reconstructing the voting data. Also disclosed in the embodiments of the present description are a voting method and device.\nA: Embodiments of the description disclose a signing method, device, and system employing secure multi-party computation (SMPC). The method comprises: acquiring transaction data, and generating a transaction hash from the transaction data by using a pre-configured rule; determining a signing level of the transaction data according to a relationship between a transaction ceiling in the transaction data and a first threshold; determining a signing organization on the basis of the signing level, the signing organization being a trusted organization that signs the transaction data; and performing SMPC-based signature verification on the transaction hash on the basis of a private key slice stored by the determined signing organization and a private key slice stored by a client, wherein the trusted organization and the client respectively store the private key slices, and the private key slice consists of part of a child private key acquired by slicing an asymmetric key. The embodiments of the description eliminate security risks caused by a lost or stolen private key, and dramatically improves security of transaction.\nB: Provided is a blockchain-based transaction consensus processing method. A node device in a blockchain at least comprises a master node device and multiple slave node devices, wherein the master node device divides proposed transaction data into a specified number of data slices based on an erasure code algorithm. The method comprises: receiving data slices of transaction data transmitted by a master node device in a unicast manner, wherein the data slices transmitted by the master node device in a unicast manner to various node devices are different; transmitting the received data slices in a broadcast manner to the other node devices in a blockchain, and receiving the data slices of the transaction data transmitted by the other node devices in a broadcast manner; determining whether the number of received data slices of the transaction data reaches an erasure code recovery threshold; and if so, carrying out data recovery on the received data slices based on an erasure code reconstruction algorithm to obtain the original content of the transaction data, so as to complete the consensus processing of the original content of the transaction data.\nC: The present application is applicable to the field of communication technology, and provides a voting method and apparatus for capital account initiation, a storage medium and a terminal. The method comprises: during review and voting for capital account initiation, when a voting instruction sent by an emcee terminal is acquired, acquiring voter information selected by the emcee, generating voting emails to be processed, and sending same to each voter terminal so as to guide the voters to complete voting operations; acquiring POST data packets returned by the voter terminals according to said voting emails, and parsing the POST data packets to acquire a voting option; if the voting option refers to approval, calculating a ratio of the current number of approvals to the total number of voters, and if the ratio is equal to or greater than a preset ratio, determining that the capital account initiation has passed the voting and starting reply and drafting. The present application realizes online review of fund product initiation, which facilitates improvement of the work efficiency of a fund company and reduces possible manual mistakes during product initiation.\nD: Provided are a voting method and apparatus, and a computer device and a computer non-volatile readable storage medium, wherein same relate to the technical field of communications. The method comprises: firstly, receiving voting authorization request information of a voter (102); then, generating voting authority information according to the voting request information (104); next, performing encryption processing on the voting authority information to obtain encrypted authorization information (106); then, sending the authorization information so that the voter sends voting information according to the authorization information (108); then, receiving the voting information, and verifying the identity of the voter according to the voting information (110); when the verification of the identity of the voter is passed, packaging the voting information into a block (112); and accordingly, uploading the block to a block chain (114). According to the technical solution, the problem in the prior art that a voting result is low in credibility is solved.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA debris flow monitoring, evacuating and alarming system, comprising a plurality of sensor modules, a plurality of signal receivers, and a monitoring host platform of a disaster-prevention center. The sensor modules are paved in a monitored area into an esther matrix. Status change information of the monitored area detected by sensors, real-time status information of the sensors and low-voltage alarm information are wirelessly transmitted to the signal receivers by means of an internet communication protocol LPWA. The signal receivers forward the status change information, the real-time status information of the sensors and the low-voltage alarm information to the monitoring host platform of the disaster-prevention center through a wired or wireless network. The monitoring host platform of the disaster-prevention center determines, according to an alarming reference value and an alarming rule and by using an esther matrix rule and an esther AI judgment formula, whether sensors in an alarming or alert state are neighbored and whether to perform a debris flow evacuating alarm.\nA: A battery monitoring apparatus (10) and system (100). The battery monitoring apparatus (10) comprises a plurality of sensors, a processing unit (41) and a PLC interface (45). The plurality of sensors comprise one or more ultrasonic sensors (11), and the plurality of sensors are used for sensing a plurality of parameters of a cell (30). The processing unit (41) is electrically connected to the plurality of sensors, and is used for receiving the plurality of parameters and determining the state of the cell (30) according to the plurality of parameters. The PLC interface (45) is electrically connected to the processing unit (41) and is electrically connected to a power line of the cell (30), and is used for reporting state information to a controller (20) by means of the power line. By means of the apparatus, on the basis of a signal transmission mode of a PLC protocol, high-speed transmission and real-time transmission of a signal can be realized, thereby reducing additional transmission lines and being convenient to implement; and a plurality of sensors including an ultrasonic sensor (11) can be integrated into a battery monitoring system to realize real-time monitoring of the state of a cell (30).\nB: A parking space detection system and method based on a LoRa wireless communication technology. The method comprises: use a geomagnetic sensor circuit to detect geomagnetic data for representing the parking space state; a microcontroller circuit controls on and off of the geomagnetic sensor circuit, and stores the data detected by the geomagnetic sensor circuit; a wireless radio frequency circuit sends the data stored by the microcontroller circuit to a wireless data radio by means of the LoRa wireless communication technology; the wireless data radio forwards the received information of the parking space state to an upper computer; the upper computer determines the parking space state, and forwards same to a cell phone of a vehicle owner. The detection system and method relate to monitoring magnetic fields of each parking space, analyzing the changes in the magnetic fields, determining whether there is a vehicle, and forwarding the result to the vehicle owner, which can make the vehicle owner learn about the information of the parking state of a parking lot more intuitively.\nC: The present invention relates to the field of wireless information technology processing. Disclosed is an indoor fire detection and alarm system based on a wireless signal. Steps for realizing the system mainly comprise: a wireless receiving end receiving a wireless electromagnetic signal from a wireless transmitting end, evaluating CSI (channel state information), and adopting a data filtering technique (a Butterworth filter) to carry out denoising on data; using an abnormality detection algorithm (sequence abnormality) to recognize an abnormality of a change in channel state information; and adopting a random forest algorithm, selecting five feature extraction methods (such as standard deviation and an interquartile range), storing indoor fire signal information, and if a signal feature in an abnormal mode matches a stored signal feature, determining that an indoor fire has broken out, and then giving a fire alarm signal. The present invention has the following beneficial effects: an existing wireless network and a device are mainly used, no additional detection or sensing device needs to be installed in a room, no additional laying price is needed, the fire can be monitored in real time, and the universality thereof is extremely high.\nD: A matrix-type three-dimensional-layered landslide monitoring and early-warning system characterized in that: the system consists of stand-alone positioning sensors (1), and a relay station (2) and a monitoring center (3) in proximity to the stand-alone positioning sensors. The stand-alone positioning sensors are buried vertically in positions in a mountain requiring monitoring. The stand-alone positioning sensors are each provided with a radio module, a battery (1-7), and a positioning response device. A wireless signal transmitted by the stand-alone positioning sensors (1) is received and retransmitted by the relay station to the monitoring center (3) reception system. The advantages of the early-warning system are: the early-warning system has a long life, allows for automatic remote monitoring, has a simple structure, has accurate early-warning capabilities, and does not consume energy during periods of inactivity. The stand-alone positioning sensors remain hidden from sight and are not easily damaged. The early-warning system minimizes losses caused by natural disasters such as landslides, mudslides, and sand dune movements.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn early education system, which relates to the technical field of digital signal processing. The system comprises: a body sensing capturing module (1), a voice collection module (2), a graphics collection module (3), a character content collection module (4), an interaction display screen (5), an intelligent analysis and recognition module (6), a content filtering and classification module (7), an infant child preference and talent database (8), an infant child behaviour database (9), a teaching plan content knowledge base (10), an offline teaching plan content source (11), a digital library (12) and online contents (13). The early education system can interact, using teaching plan contents which interest an infant child, with the infant child by capturing a behaviour of the infant child, i.e. data in physical aspects and mind (mental) aspects, via an intelligent analysis technique, to form accurate transmission of knowledge, so that 0-6 aged preschool infant children can receive completely personalized and heuristic education within six years, thereby achieving personalized potential development and developing the creative ability of the infant children to the maximum extent.\nA: Disclosed in the present invention is a sensor-based separately deployed human body behavior recognition health management system. The system in the present invention comprises a user interaction module and a data acquisition module on a client side, and a model identification module, a data analysis module, and a suggestion module on a server side. The client is deployed on a personal terminal of a user such as a smart phone or smart bracelet, and is used for interacting with the user and collecting behavior data of the user. The server is deployed on a remote host or server and is used for identifying the behavior data of the human body and carrying out corresponding data analysis so as to provide suggestions. The client communicates with the server via a network. The convenient-to-deploy separate human body behavior recognition system in the present invention provides more comprehensive behavior recognition types and more perfect and effective service reminders, and also improves the recognition accuracy and speed, thereby facilitating providing deeper personalized services for users.\nB: A system and method for child characteristics identification and potential development and assessment; the system comprises a child characteristics identification module (100a), a cultivation and training module (100b), a child characteristics database (100c), a talent characteristics database (100d) and a comparison and assessment module (100e); the child characteristics identification module (100a) is used to receive the collected child characteristics individual data via a network, to acquire the sample data or history data in the child characteristics database (100c) by accessing the child characteristics database (100c), and to analyze and compare with the collected individual data; the cultivation and training module (100b) is used to receive child characteristics analysis result data coming from the child characteristics identification module, and to match a corresponding training solution to conduct intensive training of advantageous characteristics and remedial training of weak; and the comparison and assessment module (100e) is used to receive the analysis result data coming from the cultivation and training module, to compare the analysis result data with the talent characteristics data obtained from the talent characteristics database (100d), and to assess to obtain an analysis result of child talent characteristics, and potential development direction and probability.\nC: A network terminal-based learning display device, capable of assisting learners to build their own knowledge structure system and making a learning method more portable. Through smart phone display of knowledge points and a structural relationship thereof, learners can study at any time or place, taking advantage of fragmented time. The technical solution comprises: a learning display device comprises a network terminal (1c) and a server (2c), the network terminal (1c) comprising: a knowledge point structure display module (11c), displaying a knowledge point structure in a first display mode in a first portion of a display screen, wherein the displayed knowledge point structure includes current knowledge points; a knowledge point content display module (12c), displaying a content of the current knowledge points in a second portion of the display screen, a first transfer module (13c), transferring data in the network terminal to a server (2c), the server (2c) comprising: a knowledge point storage module (22c), storing a classification of knowledge points, structural relationships, tags and content; and a second transfer module (21c), transferring data stored in the knowledge point storage module to the network terminal (1c).\nD: An intelligent recognition access control system, comprising a gesture recognition module (1), a fingerprint recognition module (2), an audio signal collection module (3), a video signal collection module (4), a comprehensive information processing module (6), a control module (7), an electromagnetic relay (9), an electromagnetic door (10), and a wireless transceiver module (8); the gesture recognition module (1) and the fingerprint recognition module (2) are electrically connected with the comprehensive information processing module (6); the video signal collection module (4) is connected with the gesture recognition module (1); the comprehensive information processing module (6) is electrically connected with the electromagnetic relay (9), the electromagnetic door (10), an audible and visual alarm (11) and the wireless transceiver module (8) by means of the control module (7); the comprehensive information processing module (6) is used to perform comprehensive processing on gesture recognition results and fingerprint recognition results to obtain comprehensive determination information, and to control the opening and closing of the electromagnetic door (10) according to the comprehensive determination information. By means of gesture recognition, fingerprint recognition and voice recognition, the described access control system achieves secure and user-friendly access control, thus improving security, and diversifying the user experience.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn electronic map implementation method, device, storage medium and equipment, the method comprising: obtaining at least one influencing parameter corresponding to the area scope of the electronic map (110); according to the influencing parameter, determining recommended points of information within the area scope of the electronic map (120); displaying the points of information on the electronic map (130). The electronic map implementation method, device, storage medium and equipment determine recommended points of information via at least one influencing parameter to recommend to users, thus providing travelling reference information in multiple aspects for the users, recommending to users places suitable for travelling, and reducing the impact of planned travelling places results on travelling of users.\nA: Disclosed is an information recommendation method and device, a mobile terminal and a storage medium. The method comprises acquiring location information uploaded by the mobile terminal, determining a corresponding venue according to the location information and map data; determining corresponding recommendation information according to venue information and a stored recommendation data set; sending the recommendation information to the mobile terminal.\nB: The present invention provides a method, apparatus and device for presenting an electronic map, and a nonvolatile computer storage medium. In an embodiment of the present invention, personalized setting information of at least one map element on an electronic map is acquired, and then presentation information of the at least one map element is obtained according to the personalized setting information. Because the presentation information of the map element can be obtained according to the personalized setting information, a rendering engine can present the map element according to new presentation information. In this manner, the electronic map presented by the rendering engine has multiple flexible variable modes rather than a single mode. The problem that because a rendering engine can only present the electronic map according to preset presentation information of the map element in the prior art, and the presented electronic map pattern is relatively fixed is solved, thereby improving the presentation flexibility of the electronic map.\nC: A method, device and apparatus for processing a high-precision electronic map, and a computer-readable storage medium. The method comprises: obtaining a high-precision electronic map obtaining request provided by a user, the high-precision electronic map obtaining request comprising a requested high-precision electronic map identifier (101); obtaining a high-precision electronic map file according to the high-precision electronic map identifier, the high-precision electronic map file comprising at least two groups of encryption map elements (102); decrypting the at least two groups of encryption map elements to obtain at least two groups of original map elements (103); and obtaining a high-precision electronic map requested by the user according to map element semantic information and the at least two groups of original map elements (104). Due to the encryption method of grouping map elements instead of the overall encryption method of files, the difficulty of decrypting high-precision electronic maps is greatly increased, thereby improving the security of high-precision electronic maps.\nD: The present application provides a method and device for drawing roads in an electronic map. The method comprises: a map server receives position information of an acquisition point transmitted by a mobile terminal, the position information being acquired by the mobile terminal at the acquisition point through positioning; and the map server draws roads in a first area of the electronic map according to the position information of the acquisition point comprised in the first area of the electronic map and transmitted by the mobile terminal. The embodiments of the present application further provide relevant devices. In the embodiments of the present application, the mobile terminal is used as an acquisition device to acquire the position information of the acquisition point; a low-cost and simple method for drawing roads in the electronic map is provided; and real-time updating of the electronic map can be realized.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA screen calibration method, apparatus and system. The screen calibration method comprises: acquiring chromaticity coordinates of a display screen to be calibrated under different parameters; and storing the parameter corresponding to the closest chromaticity coordinates in a register, thereby achieving screen calibration.\nA: Provided are a driving method and driving apparatus (5) for a display apparatus. The method comprises: acquiring chromaticity coordinates, in an RGB colour gamut space, of a sub-pixel corresponding to each pixel unit in a pre-set area (S201); according to the chromaticity coordinates of the sub-pixel in the RGB colour gamut space, respectively calculating data feature values of multiple chromaticity coordinates, in the RGB colour gamut space, of each sub-pixel in the pre-set area (S202); converting the data feature values of the chromaticity coordinates, in the RGB colour gamut space, of the sub-pixel to chromaticity coordinates in an LCH colour gamut space (S203); and if the saturation and hues in the chromaticity coordinates in the LCH colour gamut space meet pre-set conditions, increasing a gamma value of a first sub-pixel and a gamma value of a second sub-pixel in the sub-pixels in the pre-set area according to the pre-set conditions (S204). The increase in adjusted gamma values of a first sub-pixel and a second sub-pixel in sub-pixels can reduce brightness proportions of the first sub-pixel and the second sub-pixel at a large viewing angle with respect to a third sub-pixel, so that the vibrance of a hue of the third sub-pixel at the large viewing angle can be improved, thus serving the function of adjusting colour cast.\nB: A calibration method and apparatus for a brightness detection value and a chrominance detection value of an optical camera. The calibration method comprises: dividing a brightness range of a reference display screen into a predetermined number of screen brightness levels; calculating a brightness correction factor; calculating a chrominance correction factor at various screen brightness levels; and using the brightness correction factor and the chrominance correction factor to calibrate a brightness value to be calibrated and a chrominance value to be calibrated which are obtained by an optical camera detecting a display screen to be calibrated, so as to obtain a brightness calibration value and a chrominance calibration value. In this calibration method, a brightness detection value and a chrominance detection value which are obtained through the detection by the optical camera may be corrected as a brightness detection value and a chrominance detection value which are obtained through detection by a reference detection device, so as to reduce errors between a brightness detection value and an actual brightness value and between a chrominance detection value and an actual chrominance value when an optical camera is used to perform brightness and chrominance detections of a display screen.\nC: A color temperature calibration method and a color temperature self-calibration system (1000). The color temperature calibration method comprises: enabling a display screen (100) to be measured to display a measurement image at a target color temperature (S100); measuring the chroma of a target pixel in the measurement image to obtain measured color coordinates of the target pixel (S200); comparing the measured color coordinates of the target pixel with standard color coordinates to determine whether the difference between the measured color coordinates and the standard color coordinates is greater than a target threshold (S300); if the difference between the measured color coordinates and the standard color coordinates is greater than the target threshold, adjusting the pixel value of the target pixel, so that the display screen (100) displays the measurement image according to the adjusted pixel value (S400); and acquiring measured color coordinates of the target pixel after adjustment, and comparing the measured color coordinates after adjustment with the standard color coordinates; and if the difference between the measured color coordinates and the standard color coordinates is not greater than the target threshold, ending the color temperature calibration (S500).\nD: A method and system for color calibration of a display device, wherein the method comprises: a mobile terminal (10) photographs, after a display device (20) displays a calibration test image, the calibration test image to generate photographing color data of the display device (20); compare the photographing color data with preset photographing color data of a standard light source to obtain a color data difference value; perform data processing on the color data difference value to obtain color adjustment data of the display device (20), so that the display device (20) performs color calibration according to the color adjustment data. By means of the present invention, a display device can be easily and conveniently calibrated by means of a mobile terminal, without using any expensive professional color calibration instrument, and therefore, a common user can also complete color calibration of the display device under a low cost, thereby improving user experience.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA desk-type guitar instrument playing stand, wherein a guitar support stand thereof uses a triangular support point and is attached to the ground to support and stably suspend a guitar at an adjusted position, thereby reducing a guitar holding burden of a player, maintaining a healthy sitting posture and providing a correct playing posture for a beginner; and a loudspeaker holder, which is selectively mounted and connected to an upper end of the stand, is a loudspeaker mounting means that is provided for expanding a sound field generated by a guitar instrument electroacoustic system, and saves on ground space for the player and improves instrument playability.\nA: A performance method of an electronic musical instrument and music mainly comprises the steps of a), selecting a music score to be performed in an electronic music score management unit, and selecting parts to be performed and/or automatically accompanied, musical instrument types, corresponding input apparatuses, performance musical instruments, output apparatuses and standard parts, and b), starting electronic musical instruments performance apparatuses required in performing the above music score, sending performance control signals to a digital musical instrument unit to enable the digital musical instrument unit to execute corresponding performance movements or sending the performance control signals to a signal output unit under the control of a performance control unit. On the premise of satisfying the performance of musical instruments and music, the performance method of an electronic musical instrument and music that utilizes and combines with the digital characteristic of electronic music scores, electronic musical instruments and digital musical instruments, realizes a novel performance mode of musical instruments and music, simplifies the complexity of musical instrument performance and diversifies music performance modes.\nB: Disclosed is a portable support frame for a musical instrument. The support frame comprises a supporting device I (1) for a handle portion of a musical instrument, and a supporting device II (2). The supporting device I (1) is movably connected to the supporting device II (2). The supporting device I (1) comprises an adjusting rod (3) with an adjustable length and a placing portion I (4) for placement of the handle portion of the musical instrument. The supporting device II (2) comprises an I-shaped supporting chassis (5), a movable adjusting frame (6) arranged above the supporting chassis (5), and a central connecting member (7). The adjusting rod (3) of the supporting device I (1) is arranged above the supporting device II (2) by means of the central connecting member (7) in an inserted manner, the bottom portion of the adjusting rod (3) extends out of the central connecting member (7), and a fixed rotary knob (8) is provided on a side face of the adjusting rod (3). The central connecting member (7) is hinged to an upper portion of the movable adjusting frame (6), placing portions II (9) for placement of the bottom portion of the musical instrument are respectively provided on two sides of the movable adjusting frame (6), and a movable clamp I (10) and a movable clamp II (11) are provided in the middle of the movable adjusting frame (6). The portable support frame uses a unique structural design, has a good supporting performance, and is convenient to fold, therefore saving on occupied space, being convenient to transport, being manufactured economically and rationally, and being suitable for popularization and application in society.\nC: An interactive stringed instrument teaching system. The system is composed of an intelligent stringed instrument, a mobile terminal and a server. A Bluetooth module is mounted in both the intelligent stringed instrument and the mobile terminal. A microphone, a tuning module, a database, a teaching module and a game module are further arranged in the mobile terminal, wherein the teaching module and the game module comprise a performing module, a sound comparison module and a note determination module, and the teaching module and the game module are used for performing a current music score and using the sound comparison module to compare a collected sound with a standard sound, determining the accuracy of user performing, and guiding a user in a timely manner according to a determination result. A main control module, a sound wakeup module, an LED driving module and an LED matrix module are further mounted in the intelligent stringed instrument. According to the present invention, the learning difficulty and the threshold of a stringed instrument are reduced, and the interestingness of game learning is increased, and the system rapidly helps a primary user to truly enjoy the joy of music.\nD: An electronic keyboard having three-dimensional, movably connected keyboards. A left keyboard and a right keyboard (1, 2) of the electronic keyboard may be movably connected in three dimensions; when the left keyboard and the right keyboard (1, 2) are connected in a straight line, the organ may be played by a player in a sitting position just like a conventional electronic keyboard. When the left keyboard and the right keyboard (1, 2) are connected in a vertical row, the same may be carried in the chest of the player by means of a shoulder strap (13), the player may play one keyboard with the left or right hand and the player may play the keyboard while standing still or walking; when the left keyboard and the right keyboard (1, 2) are connected longitudinally with buckles, the organ is easy to store, lift and carry; and when the left keyboard and the right keyboard (1, 2) are connected in the vertical row position, an included angle of less than 180 degrees is formed between the rear parts of the left keyboard and the right keyboard (1, 2) so as to aid in performance. The left and right keyboards connected using a soft data line both have a set of independent function keys, such as instrument selection keys (18), range adjustment keys (16) and volume adjustment push rods (21). The electronic keyboard also has a function for music on demand, wherein songs are sorted by instrument.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA semi-non-negative matrix factorization-based sound signal separation method, comprising: calculating a Fourier transform result of a single-channel mixed sound signal and calculating the frequency spectrum thereof (S1); performing semi-non-negative matrix factorization on the frequency spectrum of the mixed signal (S2); obtaining respective initial frequency spectra of source signals according to the frequency spectrum of the mixed signal (S3); performing semi-non-negative matrix factorization on the initial frequency spectra of the source signals (S4); obtaining frequency spectra of the source signals according to the frequency spectrum of the mixed signal and a corresponding feature matrix and coefficient matrix thereof, and feature matrices and coefficient matrices corresponding to the source signals (S5); obtaining Fourier transform results of the source signals according to the Fourier transform result of the mixed signal and the frequency spectra of the source signals (S6); and performing inverse Fourier transform on the Fourier transform results of the source signals to obtain the source signals, thereby achieving the separation of the source signals from the single-channel mixed sound signal (S7). The described method may be used to separate a single-channel mixed sound signal formed by mixing source sound signals that overlap in a frequency domain and that are not necessarily independent of each other.\nA: A radar signal processing method, system and apparatus based on a photonic fractional Fourier transformer. The radar signal processing method comprises: transmitting a linear frequency modulation signal to a target to be detected, receiving an echo signal of said target, and loading the linear frequency modulation signal and the echo signal onto a single-frequency optical wave by means of an electro-optic modulator (S1); respectively biasing a sub-modulator and a parent modulator of the electro-optic modulator at different bias points, modulating the single-frequency optical wave by means of the electro-optic modulator, and outputting a modulated optical signal (S2); converting the optical signal by means of a photoelectric detector to obtain a photocurrent (S3); and performing a Fourier transform on the photocurrent to obtain a fractional Fourier spectrum, and obtaining distance information of said target according to a peak position of each pulse signal in the fractional Fourier spectrum (S4). A high-frequency broadband radar signal is converted into a low-frequency narrowband fractional-domain signal, and the interference of a false target component on a radar detection result is thus eliminated.\nB: Provided are a speech separation method and a device, a medium and an electronic device. The method comprises: S300, acquiring a time-frequency domain mixed signal to be processed; S301, obtaining a separation matrix of the time-frequency domain mixed signal according to the time-frequency domain mixed signal and a cost function of independent vector analysis of a Gaussian mixture model comprising an amplitude adjustment factor; and S302, obtaining a time-frequency domain signal of each sound source from the time-frequency domain mixed signal according to the separation matrix. The method is beneficial to improving the implementability of speech separation technology, thereby broadening the scope of application of the speech separation technology.\nC: A method for classification of mixed signals, comprising: receiving mixed signals; calculating a matrix corresponding to the mixed signals by means of a preset principal component analysis method, obtaining mixed signals to be classified, and determining the number of signal types comprised in the mixed signals to be classified; determining a separation matrix according to the number of signal types comprised in the mixed signals to be classified; separating, by means of the separation matrix, various signals in the mixed signals to be classified to obtain signals to be identified; calculating a preset number of high-order cumulants corresponding to each signal to be identified in the signals to be identified; using the calculated high-order cumulants as characteristics of the signal to be identified corresponding to the high-order cumulants; inputting the characteristics of the signal to be identified to a preset classification model; and obtaining an modulation mode of the signal to be identified. The method provided in the embodiments of the present application has no requirements for the classification environment, while in the prior art, specific conditions need to be satisfied to classify mixed signals. Therefore, the present application has universal applicability.\nD: A time-frequency masking and deep neural network-based sound source orientation estimation method and device, an electronic device and a storage medium, belonging to the field of computer technology. Said method comprises: acquiring sound signals of multiple channels (S110); performing frame division, windowing and Fourier transformation on a sound signal of each channel in the signals of multiple channels, so as to form a short-time Fourier spectrum of the sound signals of multiple channels (S120); performing an iterative operation on the short-time Fourier spectrum by means of a pre-trained neural network model, so as to calculate ratio filters corresponding to target signals in the sound signals of multiple channels (S130); fusing the plurality of ratio filters to form a single ratio filter (S140); and performing masking and weighting on the signals of multiple channels by means of the single ratio filter, so as to determine the orientation of a target sound source (S150). The time-frequency masking and deep neural network-based sound source direction estimation method and device can have strong robustness in an environment of a low signal-to-noise ratio and strong reverberation, and improve the accuracy and stability of target sound source direction estimation.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to an information processing method and apparatus, an electronic device, and a computer-readable storage medium. The method comprises: obtaining a plurality of pieces of target information and a plurality of pieces of first association information, wherein the plurality of pieces of target information respectively correspond to a plurality of targets, and the first association information is used to indicate at least one of interaction and similarity between two different targets; respectively extracting a plurality of target features of the plurality of pieces of target information and a plurality of association features of the plurality of pieces of first association information; and determining a prediction result of the interaction between a first target and a second target on the basis of the plurality of target features and the plurality of association features, wherein the first target comprises a target belonging to a first category, the second target comprises a target belonging to a second category, and there is no first association information between the first target and the second target. According to the present invention, the accuracy of the prediction result of the interaction can be improved.\nA: A defect detection method and apparatus, an electronic device, and a storage medium. The method comprises: acquiring a first feature map of a template image, and a second feature map of an image to be subjected to detection (S101); for each first feature point in the first feature map, determining, from a plurality of first feature points in the first feature map, a plurality of associated feature points, the distance between which and the first feature point satisfies a pre-set condition (S102); for each first feature point, on the basis of the similarity between each determined associated feature point of the first feature point and a target second feature point in the second feature map, performing feature enhancement processing on the first feature point, wherein the target second feature point is a second feature point, the position of which matches the first feature point, in the second feature map (S103); and on the basis of the second feature map, and the first feature map which has been subjected to feature enhancement processing, determining a defect detection result corresponding to said image (S104).\nB: Provided are a key point detection method and apparatus, and an electronic device and a storage medium. The method comprises: acquiring an image to be subjected to detection; on the basis of said image, generating an image feature map and a plurality of key point heat maps, wherein the image feature map is used for representing a relative position relationship between target objects in said image, each of the key point heat maps includes key points of one type in said image, and key points of different types correspond to different parts of the target objects; on the basis of the image feature map and the plurality of key point heat maps, generating an initial key point map model, wherein the initial key point map model includes information of the key points of different types in said image and information of connecting edges, and each connecting edge is an edge between two key points of different types; and carrying out connecting edge pruning processing on the initial key point map model a plurality of times until a plurality of key points in the processed key point map model are clustered into a plurality of clusters, so as to obtain information of key points that respectively belongs to each target object.\nC: Methods for determining interaction information and for training a prediction model, an apparatus, and a medium. The method for determining interaction information comprises: acquiring basic information of a first target, basic information of a second target, and a target interaction information prediction model, wherein the target interaction information prediction model is obtained by means of training a global loss function and a key local loss function (201); and processing, by calling the target interaction information prediction model, the basic information of the first target and the basic information of the second target to obtain target interaction information for the first target and the second target (202). On the basis of the above process, the training process of the interaction information prediction model considers both global information and key local information, thereby improving the training effect of the interaction information prediction model, and enhancing the accuracy of determined interaction information for a first target object and a second target object.\nD: Provided are a target tracking method and device, and a storage medium and a computer program. The method comprises: acquiring multiple scene images corresponding to the same scene; performing feature extraction processing and target part detection on each of the multiple scene images to obtain feature information of each scene image and positions of multiple target parts on each scene image; acquiring target feature information respectively corresponding to the positions of the multiple target parts in the feature information of each scene image; and determining, according to the acquired target feature information respectively corresponding to the positions of the multiple target parts, multiple same targets appearing on the multiple scene images, wherein each scene image comprises some or all of the multiple same targets.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are automatic matching method and system for an ultrasonic diagnosis report, wherein the method comprises: S1, loading a report template, wherein the report template comprises: a user basic information filling area, a scanning image display area, a measurement data filling area and a diagnosis result filling area, wherein the measurement data filling area is used for filling a measurement item and a measurement result corresponding to the measurement item; S2, generating a measurement identification according to the report template, and the measurement identification comprises: a measurement item type, a measurement item ID, a measurement item name and a measurement item unit; S3, generating a measurement packet according to the measurement identification; and S4, loading the measurement packet to measure, and filling the measurement result to the report template for output. The automatic matching method and system for the ultrasonic diagnosis report can add measurement items as needed in a custom report template according to user needs, and automatically adjust the configuration of the measurement packet according to the custom report template, and then directly generate a report that meets the user needs after the measurement according to the new measurement package.\nA: Disclosed are a data processing method, a measurement device and a system server. The method may comprise: receiving a measurement instruction sent by a system server, wherein the measurement instruction comprises attribute information about a user to be measured; according to the measurement instruction, collecting sign data of the user to be measured, and reporting the sign data to the system server, so that the system server uses the sign data to update the attribute information about the user to be measured, and matches a corresponding advertisement file for the user to be measured according to the attribute information; receiving a play instruction returned by the system server, wherein the play instruction carries an identifier of the matched advertisement file; and according to the identifier of the advertisement file, querying and playing the advertisement file. By the present invention, the requirements of a user for the automation and intelligence of a measurement device can be met, and a played advertisement can be more targeted.\nB: The present invention relates to a measurement gauge data storage method and apparatus. The method comprises: establishing a connection with a measurement gauge; identifying user characteristics in order to determine a corresponding user ID, and acquiring measurement results outputted by the measurement gauge; detecting whether a user record table corresponding to the user ID is stored; and, when a user record table corresponding to the user ID is stored, storing the measurement results in the user record table corresponding to the user ID. The present method determines a user ID corresponding to user characteristics in order to determine a corresponding user record table, and can thus accurately file measurement results in a corresponding user record table; results are reliable, the system structure is simple, the method is simple to operate, and the scope of application is wide.\nC: An intelligent follow-up method and system based on a radiographic image report, a device, and a storage medium. The intelligent follow-up method comprises: obtaining a pathological report of a patient (S10), the pathological report comprising pathological report time and identity information of the patient; obtaining all image reports of the patient within a preset time period before the pathological report time according to the identity information (S20); extracting pathological diagnosis attributes in the pathological report and image diagnosis attributes in each image report, respectively (S30); matching each set of pathological diagnosis attributes with the image diagnosis attributes in each image report, respectively (S40); if the matching is unsuccessful, determining that the image diagnosis is false, and if the matching is successful, determining that the image diagnosis is correct (S50); labeling a label that represents the matching result on the image report (S60); and scheduling a follow-up with the corresponding patient according to the label (S70). The intelligent follow-up method realizes automatic determining for consistency between image diagnosis and pathological diagnosis, thereby realizing automatic and intelligent diagnosis of the radiographic image report.\nD: A vehicle detection method, apparatus (1000) and device. The vehicle detection method is applied to a vehicle detection system comprising an oscilloscope. The vehicle detection method comprises: acquiring vehicle information to be detected (210); acquiring and displaying a measurement item associated with the vehicle information (220); receiving a selection operation of a user for the measurement item so as to obtain a selected measurement item (230); acquiring and displaying measurement guide information corresponding to the selected measurement item so as to prompt the user to connect the vehicle detection system to the measurement item according to the measurement guide information (240); and when a measurement start instruction of the user is received, measuring the selected measurement item, and displaying a signal waveform corresponding to the measurement item (250). The vehicle detection method, apparatus (1000) and device may greatly reduce the use threshold of the vehicle detection system, improve the vehicle detection efficiency, simplify user operations, and improve the user experience.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an iterative optimization multi-scale fusion speed prediction algorithm for intelligent connected vehicles, which is characterized in that the following steps are comprised: step 1: establishing multiple regression models for drivers having different driving styles; step 2: assigning a normalized global model weight μ(t) to each regression model in step 1 at a specific moment t to obtain a global fusion predicted vehicle speed; step 3: establishing a local vehicle speed prediction model; step 4: obtaining a global-local fusion predicted vehicle speed by the weighted averages of global and local vehicle speeds within a local time window and by performing a model probability update by means of a probability transfer matrix; step 5: correcting the global-local model weight and the probability transfer matrix in step 4; step 6: calculating to obtain a calibrated global fusion predicted vehicle speed; and step 7: repeating steps 2 to 6. The predicted vehicle speed in the present invention has small error and high accuracy.\nA: Provided are data processing methods and an apparatus, a device, and a medium, a method comprising: acquiring local model parameters corresponding to N local recognition models in an rth synchronization period, and performing parameter fusion on the local model parameters corresponding to the N local recognition models, so as to obtain a target global model corresponding to the rth synchronization period; acquiring a historical global model of the N local recognition models in the r-1th synchronization period, and generating, according to the historical global model and the target global model, global federated momentum corresponding to the rth synchronization period; and sending the global federated momentum to N clients, so that the N clients respectively perform parameter update, according to the global federated momentum, on the associated local recognition models. The training efficiency of local recognition models can be improved, and the model performance of an object recognition model obtained on the basis of training the local recognition models can be improved.\nB: The present invention relates to a method and system for real-time three-dimensional scan modeling for a large-scale scene, the method comprising the following steps: acquiring an RGB-D video stream; performing global camera posture optimization on the video stream so as to acquire a global camera prediction position; and carrying out globally-optimized three-dimensional scan modeling according to the global camera prediction position. Real-time and terminal-to-terminal modeling is carried out. Thus, local camera tracking is not relied on, but rather the globally-optimized camera positioning is constantly maintained. A parallel optimization modeling system which combines sparse feature points, dense geometry, and color information is put forward and developed by the present invention; a globally-optimized camera position may also be predicted in real time by means of the present invention, camera repositioning is supported, and a globally-consistent optimal three-dimensional model may be updated in real time. The system is applied to large-scale indoor scanning, and a high-quality three-dimensional model may be acquired.\nC: Provided are a trajectory prediction method and apparatus, a storage medium, a driving system and a vehicle. The method comprises: acquiring global semantic data and global trajectory data of a region where an object for which prediction is to be carried out is located (S202); then, fusing the global semantic data with the global trajectory data to obtain global fused data (S204); extracting features in the global fused data to obtain global features (S206); and then, processing the global features by means of a trained trajectory prediction model so as to obtain a target trajectory of said object (S208). The method can realize trajectory prediction for a moving object in conjunction with global data, has a relatively high prediction accuracy, and reduces the probability of accidents occurring to some extent.\nD: A hybrid vehicle working condition prediction method based on meta-learning. A model training process is divided into two parts: pre-training executed offline and fine-tuning training executed online; the pre-training relates to implementing parallel training for various working conditions to obtain a base model having good generalization performance; the fine-tuning training combines multi-task training on the basis of a deep neural network, and relates to training for a specific working condition on the basis of the base model. The time cost is low, and the method can be applied to a model online correction link. In addition, on the basis of said process, further provided is a vehicle speed prediction model online application framework composed of three parts, i.e., offline training, online training, and real-time prediction, which can be applied to a working condition prediction task under actual traffic conditions.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are a microwave Doppler detection module and device. The microwave Doppler detection module comprises an electromagnetic reflection surface and at least one pair of dual coupling polarons disposed at an interval from the electromagnetic reflection surface, wherein the pair of dual coupling polarons has a first feed end and a second feed end; a first radiation source electrode and a second radiation source electrode respectively extend from the two feed ends; the first feed end and the second feed end approach each other; and when the first radiation source electrode and the second radiation source electrode are respectively subjected to source feeding and power feeding of the same excitation signal at the first feed end and the second feed end, the current and potential distributions of the first radiation source electrode and the second radiation source electrode can be in a dual distribution state around the center point of a connecting line of the first feed end and the second feed end, and the radiation source electrodes are then coupled in a dual manner, such that the size requirement for the microwave Doppler detection module is reduced, and the formation of a detection dead zone can be avoided.\nA: A mobile terminal and an antenna control method, wherein the mobile terminal comprises a first module (1) and a second module (2), which can be in a folded state or unfolded state; a first antenna radiation branch (4) is arranged on the first module (1), a first feed point (41) and a first ground point (42) are arranged on the first antenna radiation branch (4), and the first antenna radiation branch (4) is electrically connected with a first feed source (7) through an on-off switch (5); a second antenna radiation branch (3) is arranged on the second module (2), a second feed point (31) and a second ground point (32) are arranged on the second antenna radiation branch (3); when the first module (1) and the second module (2) are in the folded state, the on-off switch (5) is in the off state; and when the first module (1) and the second module (2) are in the unfolded state, the on-off switch (5) is in the on state.\nB: Disclosed by the present invention are an antenna control method and an antenna apparatus. An antenna apparatus comprises a first casing (900) and a second casing (902) capable of moving relative to the first casing (900), the first casing (900) comprising a first radiator (806), and the second casing (902) comprising a second radiator (910); a signal source (600, 602); and a coupling component (70), the coupling component (70) being electrically connected to the first radiator (806) and the second radiator (910) when the first casing (900) and the second casing (902) approach one another, and the first radiator (806) and the second radiator (910) combining into a new radiator. In the embodiments of the present invention, a folded first radiator and second radiator may be combined into a new radiator, which is beneficial in reducing the possibility that the performance of an original antenna will decline due to folding, thereby improving the antenna performance of foldable electronic devices.\nC: A waterproof RFID tag comprises a rectangular PCB reflective plate (G1). A microstrip antenna is disposed on one side of the PCB reflective plate (G1), and an RFID chip (2) is disposed on the other side of the PCB reflective plate (G1). The RFID chip (2) is in signal connection with the microstrip antenna. The microstrip antenna comprises a first microstrip unit and a second microstrip unit that are vertically symmetrical and that have a same shape. The microstrip antenna also comprises a first feeding sheet (G51) and a second feeding sheet (G52). The first feeding sheet (G51) and the second feeding sheet (G52) are disposed on the same side of the PCB reflective plate (G1). The first feeding sheet (G51) is used for being in feeding connection with the first microstrip unit, and the second feeding sheet (G52) is used for being in feeding connection with the second microstrip unit. By means of proper arrangement, the waterproof RFID tag has good RFID tag characteristics, a long distance and excellent antenna performance.\nD: An anti-interference microwave detection module, comprising an oscillation circuit (10), a transmitting unit (30), a receiving unit (40), a frequency mixing detection unit (20), a frequency selection unit (50) and a fluctuating signal conversion unit (60). Further disclosed is an anti-interference method for the anti-interference microwave detection module, wherein the anti-interference microwave detection module reduces the interference of electromagnetic radiation of frequency bands different from that of the anti-interference microwave detection module in an environment on echo signals of the anti-interference microwave detection module by means of frequency selection, and further obtains a fluctuating signal by means of trending Doppler intermediate frequency signals. Then, fluctuating feature parameters in the fluctuating signal correspond to action features of objects in a detection space, so that the anti-interference microwave detection module may completely feed back the action features of objects in the detection space, thereby reducing the interference of electromagnetic radiation in the environment on the fluctuating signal, comprising the interference of electromagnetic radiation in the same frequency band as that of the anti-interference microwave detection module on the fluctuating signal.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA nerve electrical stimulation system, comprising an extension wire (100) and an electrode wire connected to the extension wire (100). A channel (12) is arranged in the extension wire (100), the electrode wire is inserted into the channel (12) and is in butted with the extension wire (100), and a fixing assembly (13) used for limiting movement of the electrode wire in the channel (12) is arranged in the channel (12). The nerve electrical stimulation system skips the step of additional sealing after butting the electrode wire and the extension wire (100), and uses a fixing assembly (13) which is reliable, simple in structure, easy to manufacture, excellent in sealing performance, low in cost, and time-saving, labor-saving and reliable.\nA: The present invention relates to a balloon electrode catheter, comprising an outer tube, a balloon, electrode sheets, and electrode wires. A first end of the outer tube is connected to a proximal end of the balloon; the electrode wire passes through the outer tube; the number of the electrode sheets is an even number; positive and negative electrode sheets are uniformly arranged at intervals on the outer surface of an annular side wall of the balloon at the same height, and the electrode sheets are respectively connected to the respective electrode wires; after the balloon is pressurized and expanded, the electrode sheets abut against the pulmonary vein ostium to form an annular ablation zone. According to the balloon electrode catheter provided by the embodiments of the present invention, uniformly distributed electrode sheets are arranged on the surface of the balloon, an effective annular pulse electric field can be generated, a target tissue can be selectively ablated, and damage to cells is reduced. When the balloon electrode catheter is attached to the generally oval pulmonary vein ostium, pressurization on the balloon can change the shape of the pulmonary vein ostium, and the balloon electrode catheter can easily fit different pulmonary vein ostia.\nB: Disclosed is a leakage detection device (30) for medical devices, comprising a substrate (31) having a surrounding portion for surrounding and exposing a contact area (11) of the medical device with the skin; a leakage detection circuit (32) disposed on an upper surface of the substrate (31) and comprising a first electrode lead (321) and a second electrode lead (322) spaced apart from each other, which are conducted and short-circuited when they are crossed by liquid; and an alarm module (33) electrically connected to said first and second electrode leads, which is triggered when said first and second electrode leads are conducted and short-circuited. The leakage detection device (30) can easily and accurately realize the detection of leakage, with low cost, simple process, and high accuracy and safety.\nC: Disclosed are a mapping guide wire (100), and a three-dimensional mapping device (200) using same. The mapping guide wire (100) comprises a guide wire core (10), a guide wire sleeve (20), an electrode wire (30), a front-end electrode (40), and a rear-end electrode (50), wherein the guide wire sleeve (20) is sheathed outside the guide wire core (10) and the electrode wire (30); the front-end electrode (40) and the rear-end electrode (50) are respectively arranged at a distal end and a proximal end of the guide wire core (10); two ends of the electrode wire (30) are respectively connected to the front-end electrode (40) and the rear-end electrode (50); and the rear-end electrode (50) is connected to the three-dimensional mapping device (200). The device is simple to operate, and can rapidly map electric signals collected by the front-end electrode (40).\nD: Disclosed are a transcutaneous electrical nerve stimulation electrode needle and a transcutaneous electrical nerve stimulation apparatus. The transcutaneous electrical nerve stimulation electrode needle comprises: a needle handle (100), wherein a first electrode and a second electrode for respectively inputting pulse current signals of different polarities are arranged inside the needle handle (100); and at least one first needle body (201) and at least one second needle body (202), wherein the first needle body (201) and the second needle body (202) both comprise a first end and a second end, wherein the first end of the first needle body (201) is electrically connected to the first electrode, and the first end of the second needle body (202) is electrically connected to the second electrode, such that an electric field can be generated between the second end of the first needle body (201) and the second end of the second needle body (202).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA dynamic rectification control circuit (1), comprising: a resonant capacitor (C1) which is connected in parallel between a first antenna terminal (in1) and a second antenna terminal (in2) together with a resonant inductor (L) and used for forming a resonant circuit together with the resonant inductor to receive an external electromagnetic field and couple same to a rectification circuit (2); a rectification circuit, wherein input ends thereof are connected to the first antenna terminal and the second antenna terminal, which is used for converting an alternating-current power source coupled by the resonant circuit into a direct-current power source (Vdd_out) and outputting same and providing a power source for an amplitude limiting circuit, and at the same time, one path of an output end thereof is connected to the ground (GND), which is used for outputting the charge to the ground when the field intensity is too strong; and an amplitude limiting circuit, wherein a power source input end thereof is connected to a power source output end (V 1 ) of the rectification circuit, and an output end (V R ) thereof is connected to a control input end of the rectification circuit. When the voltages of the antenna terminals are too high, the dynamic rectification control circuit can conduct through the grounded path, so that the charges of the antenna terminals are output to the ground, and the quantities of electric charges of the antenna terminals are reduced, thereby reducing the rectified direct-current voltage. The dynamic rectification control circuit can prevent an over-voltage from damaging a load circuit, and can also prevent the occurrence of a phenomenon where the reception of a card reader terminal is saturated at the same time. In addition, also provided are a passive RFID comprising the dynamic rectification control circuit, and a method for performing dynamic rectification control on the circuit using the passive RFID.\nA: Disclosed in the present invention is an alternating current source for detecting battery internal resistance in alternate current injection method. The alternating current source comprises an isolating step-down circuit, a rectifying circuit, an inverter circuit and an inductance capacitance (LC) resonance circuit which are connected in turn. An output end of the LC resonance circuit is reversely connected to the inverter circuit through a control circuit to form a closed loop control system. A non-direct capacitor is used in the LC resonance circuit. Also disclosed in the present invention is a corresponding control method of the alternating current source. The invention can inject current into one or more groups of high-voltage battery packs using a very low busbar voltage, thereby greatly reducing voltage stress of a power semiconductor component, significantly improving reliability of the system and simultaneously obviously improving system efficiency.\nB: A rectification and amplitude limiting circuit having a variety of time constants, and a passive radio-frequency tag comprising the rectification and amplitude limiting circuit. By applying analogue control signals which have different time constants, i.e. which conduct a voltage amplitude adjustment at different switching speeds, to control ends of two discharging paths of the rectification and amplitude limiting circuit, the switching between full opening and full closing of the two discharging paths is realized, and adaptive discharging is conducted according to the quantity of electric charges at an antenna terminal and a condition of the energy level of the tag, so as to improve the demodulation capability of the tag, and increase the read and write distance of the tag.\nC: A power supply of a single-phase electronic electric energy meter, comprising an industrial frequency transformer (T1), a rectifier circuit (D1), a filter circuit (C1), a sampling control circuit, a switch circuit (SW1), a step-down DC/DC circuit and a boost DC/DC circuit. An industrial frequency alternating current Vin, after being subjected to voltage step-down via the industrial frequency transformer, passes through the rectifier circuit and the filter circuit and generates a direct current voltage V1 at a direct current voltage end; the direct current voltage end is directly connected to an input end of the step-down DC/DC circuit; the step-down DC/DC circuit outputs a direct current voltage V2 and inputs same to the boost DC/DC circuit; and an output end of the boost DC/DC circuit provides a stable working power supply for a CPU and a measurement chip of the electric energy meter. One end of the sampling control circuit is connected to the direct current voltage end, and the other end is connected to a control end of the switch circuit; and an input end and an output end of the switch circuit are respectively connected to the input end and an output end of the step-down DC/DC circuit. The direct current voltage V1 can be connected to the boost DC/DC circuit via the switch circuit to enable an output voltage V3 of the output end of the boost DC/DC circuit to remain stable; and a current output by the output end of the boost DC/DC circuit is proportional to an instantaneous voltage output by the output end of the boost DC/DC circuit.\nD: A charging circuit, a chip and a device. The charging circuit comprises: a magnetic induction circuit, a rectifying circuit, a switch circuit and a boost circuit, wherein an output end of the magnetic induction circuit is connected to an input end of the rectifying circuit; and the switch circuit is respectively connected to the rectifying circuit and the boost circuit. The magnetic induction circuit receives an electromagnetic signal sent by a transmitting end, and generates an alternating current according to the electromagnetic signal; the rectifying circuit converts the alternating current into a direct current; and the switch circuit switches on a path between the rectifying circuit and the boost circuit, so that the boost circuit boosts an output voltage of the magnetic induction circuit. In the solution, a switch circuit is controlled to switch on the path between a rectifying circuit and a boost circuit, such that the boost circuit is charged, so as to boost an output voltage of a charging circuit, and the boosted output voltage can ensure that a chip in which the charging circuit is located is started, thereby solving the problem of it not being possible to charge a device in which the charging circuit is located due to the fact that the chip in which the charging circuit is located cannot be started caused by the charging circuit being undervoltage.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA salt solution-based performance-enhanced water voltaic power generator comprises a functional film (1) having a conductive nanomaterial layer and electrodes at two ends of the functional film. The functional film comprises a hydrophobic region and a hydrophilic region at two ends thereof. The conductive nanomaterial layer has conductive networks formed by a conductive nanomaterial in both the hydrophobic region and the hydrophilic region. An upper electrode (2) and a lower electrode (3) are provided in the hydrophobic region (1a) and the hydrophilic region (1b), respectively. A portion of the hydrophilic region provided with the lower electrode is always immersed in an aqueous solution, and a portion of the hydrophobic region provided with the upper electrode is always exposed from a surface of the aqueous solution. During an evaporation process of water in a region between the upper electrode and the lower electrode, a solute concentration gradient constructed in the hydrophilic region enables a concentration difference diffusion potential to be formed between the two electrodes. The water voltaic power generator effectively utilizes aqueous solutions having different salinities to generate power continuously, and is applicable as a power supply for supplying power to electronic/electrical devices. Further disclosed are a manufacturing method for a water voltaic power generator, and a water voltaic power generator-based integrated electricity generation system.\nA: A moisture power generation method and equipment. The method comprises the following steps: pouring a polymer solution into a culture dish and then placing same in an oven to prepare a polymer power generation film (100) (S101); placing the polymer power generation film (100) on a moisture insulated metal electrode (200), and providing a porous top electrode (300) above the polymer power generation film (100) so as to protect the film form of the polymer power generation film (100) and transmit moisture (S102); applying moisture stimulation to the outside of the metal electrode (200) in a single direction, so as to induce the separation of positive and negative ion pairs inside the polymer power generation film (100) and release free moving carriers (S103); and generating a potential difference and current by means of diffusion of carriers from a high concentration region to a low concentration region, thereby outputting electric power to the outside (S104). In the present method, simple and easily available polymer materials which may be bent, stretched and even self-repaired are employed; at the same time, directional moisture stimulation is employed to be able to implement moisture control without requiring assistance from a laser which is expensive to construct; the present method has the advantage of large-scale integration thanks to the simple testing means and the lack of requirement of other expensive external equipment in the testing process.\nB: A self-driven water collecting surface with a superhydrophobic-superhydrophilic structure. A superhydrophilic region is distributed on the superhydrophobic surface, and the superhydrophilic region is of a leaf vein channel network structure formed by multistage superhydrophilic channels. The surface preparation method comprises: preparing a periodic distribution peak-pit micron plus nano structure by using pulse laser to perform low surface energy material modification; and removing a low surface energy modification layer by using the pulse laser according to a leaf vein-like channel network structure, the laser removing region being a superhydrophilic region, and the untreated region being a superhydrophobic region, thereby obtaining the self-driven high-concentration water collecting surface with a superhydrophobic-superhydrophilic structure. The surface has high water collecting efficiency, high concentration and simple preparation process, is efficient and controllable in processing, can be prepared in large area, and obtain a superhydrophobic-superhydrophilic complex pattern, etc.\nC: A deformable flexible nano generator and a manufacturing method therefor, a sensor and a robot. The deformable flexible nano generator provided herein comprises: a flexible packaging structure (1) and an electrode (2) embedded in the flexible packaging structure, wherein the electrode (2) is a patterned electrode formed by the aggregation of a nano material; the flexible packaging structure (1) adopts a stretchable elastic packaging material. The deformable flexible nano generator can be stretched and deformed in biaxial directions, and can be attached to a surface of a regular or irregular object to operate; the flexible nano generator can achieve complex deformations such as stretching, bending, twisting and the like, and can withstand a great deal of mechanical deformations and damages; when attached to an irregular or regular object, the present invention may convert energy generated by induction or contact friction with the other object into electrical energy, and output the same. A flexible sensor having the flexible nano generator may be applied in the field of wearable devices; by means of electrical signals generated by the flexible sensor, a flexible robot may sense movements, working conditions, environment and external stimulations thereof.\nD: A plate, a microfluidic chip, and a preparation method for a plate. A plate, comprising: a substrate (1), an electrode (2), and a surface contact layer (3) which are sequentially stacked on one another, and liquid inlet holes (4) passing through the substrate (1), the electrode (2), and the surface contact layer (3); the surface contact layer (3) comprises superhydrophobic regions (7) and hydrophilic regions (6), and the liquid inlet holes (4) are provided in the hydrophilic regions (6); the microfluidic chip comprises a first plate (12) formed by the plate as described above and a second plate (13) provided close to the side of the surface contact layer (3) of the first plate (12), and the first plate (12) and the second plate (13) are arranged opposite to each other and form a liquid channel (G) therebetween.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe embodiments of the present application provide a terminal device control method and a terminal device. The method is applied to a terminal device and comprises: receiving a target notification; determining whether the intensity of ambient light is less than a threshold intensity; and if it is determined that the intensity of the ambient light is less than the threshold intensity, displaying target content in a target region of a target screen, the target screen being a screen of the terminal device shielded by an object.\nA: Embodiments of the preset application provide a control method and a terminal device. The method comprises: receiving a first input, in a target region, of a user; and in response to the first input, performing a first action corresponding to the first input, wherein the target region is a region which is on a screen of the terminal device and corresponds to a first camera located below the screen of the terminal device, and the target region is located in a navigation bar of the terminal device.\nB: The embodiments of the present application relate to the field of terminals, and provide a screen brightness adjustment method and an electronic device, which allow users to avoid frequently adjusting brightness, thus improving the user experience. The method comprises: acquiring ambient light brightness in a first display scenario, wherein the first display scenario comprises any one of a text reading scenario, a video scenario, or a game scenario; determining the backlight brightness of a screen in the first display scenario according to the ambient light brightness and a first brightness adjustment rule, wherein the first brightness adjustment rule is determined according to at least two different kinds of ambient light brightness in the first display scenario, the manually adjusted brightness of the screen under the at least two different kinds of ambient light brightness, and a preset automatic brightness algorithm; and adjusting the brightness of the screen of an electronic device according to the backlight brightness of the screen in the first display scenario.\nC: Embodiments of the present disclosure provide a display method and a terminal device. The method comprises: when a first application operation interface is displayed in a first region of a screen, receiving a bending operation performed by a user with respect to a terminal; and in response to the bending operation, displaying a target mark in a second region of the screen, and displaying the first application operation interface in a third region of the screen, wherein the third region and the second region do not overlap, and the target mark is used to indicate at least one of an unread message, a second application, and a target function.\nD: An ambient light detection method, an ambient light detection apparatus, a terminal device, and a storage medium. The ambient light detection method comprises: (11) acquiring a detection signal of an ambient light sensor; (12) acquiring a brightness value of a screen region corresponding to the ambient light sensor; and (13) determining the intensity of ambient light on the basis of the detection signal of the ambient light sensor and the brightness value of the screen region corresponding to the ambient light sensor. When the intensity of ambient light is determined by means of the detection signal of the ambient light sensor, the intensity of interference light can be determined by means of the brightness value of the screen, and the impact of the interference light can be reduced, thus the intensity of ambient light is finally determined, such that the detected intensity of ambient light is more accurate.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA scan imaging method, comprising: obtaining first scan data when a linear-array camera scans a target object in a first direction; correcting the first scan data according to a correction rule corresponding to the first direction to obtain a first image; obtaining second scan data when the linear-array camera scans the target object in a second direction; correcting the second scan data according to a correction rule corresponding to the second direction to obtain a second image; and splicing the first image and the second image to obtain a scan image of the target object. Scanning on reciprocating paths can be achieved, idle stroke in movement is reduced, and scan efficiency is improved; moreover, when scanning directions are different, scan data is corrected using correction rules corresponding to the scanning directions, so as to improve the quality of a scan image. Also provided are a computer device and a storage medium.\nA: Embodiments of the present application provide an image storage method and apparatus, and an electronic device and a storage medium. The method comprises: obtaining pixel data obtained by scanning in a first partial region of a scanning region as first pixel data and storing same to a storage space; correcting the first pixel data by using a preset correction algorithm to obtain second pixel data and storing same to the storage space; when determining that the remaining space of the storage space meets a preset condition, obtaining pixel data obtained by scanning in the remaining region of the scanning region as third pixel data and storing same to the storage space, the scanning mode of the remaining region being a second preset scanning mode; and correcting the third pixel data by using the preset correction algorithm to obtain fourth pixel data and storing same to the storage space. According to the present application, because the number of pixels obtained by scanning in the second preset scanning mode is less than the number of pixels obtained by scanning in a first preset scanning mode, the size of an image before correction is reduced, thereby improving the success rate of image storage.\nB: A file scanning method, comprising: receiving a target image, extracting contour features, first filtering processing, overlapping processing, second filtering processing, calculating distance feature values, calculating one-dimensional head-up feature values, facing determination, and rotation correction. The described method achieves the orderly storage of the target image, manual intervention is not needed for the entire process, the position of a file in a scanning apparatus does not need to be checked when a user scans the file, a file to be scanned can be placed into the scanning apparatus in any direction, and manual intervention is not needed for a later stage, thereby greatly increasing the digital processing efficiency of a physical information image of existing files.\nC: A method and device for processing print data, and a storage medium. The method comprises: taking a matrix of print data corresponding to one scan operation performed by a print head in a first scan direction as a first print data matrix and a feathering length (S1); obtaining a first mask template, and obtaining a second mask template according to the first mask template (S2); and performing data processing on the first print data matrix according to the feathering length, the first mask template and the second mask template to obtain a second print data matrix (S3). The method prevents severe distortion of a printed image, thereby increasing quality of the printed image.\nD: A magnetic resonance imaging control method and apparatus (1), and a computer readable storage medium. Said control method comprises: under a preset FOV, controlling a magnetic resonance imaging device (2) to excite a scanning sequence to pre-scan a target scanning position, so as to obtain scanning data (S22); inputting the scanning data into a neural network model, and outputting, from the neural network model, scanning position information corresponding to the scanning data (S23); determining a gradient encoding direction of the magnetic resonance imaging according to the scanning position information (S24); controlling the magnetic resonance imaging device (2) to excite a scanning sequence to perform magnetic resonance scanning on the target scanning position, so as to acquire a plurality of echo signals (S25); filling the plurality of echo signals into a K space to acquire K space data of the target scanning position (S26); and determining an initial magnetic resonance image according to the K space data, and reversely rotating the initial magnetic resonance image by a preset deflection angle, so as to generate a magnetic resonance image (S27). The magnetic resonance imaging control method can improve the correction efficiency and correction accuracy of magnetic resonance scanning, thereby improving the quality of a magnetic resonance image.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn intelligent industrial remote controller controlling method, comprising: (S202) detecting whether a current function test for a tested device is completed; and (S204) if yes, triggering a transmitting passage corresponding to a next function test according to a preset testing procedure; (S206) obtaining, from the transmitting passage, an infrared data packet corresponding to the function test; (S208) parsing the infrared data packet to obtain an infrared signal; and (S210) transmitting the infrared signal to the tested device for testing.\nA: An interaction device, and a control method and apparatus. The interaction device comprises an infrared smart pen (2) and an infrared touch display (1). The infrared touch display (1) is provided with an infrared touch frame (11) which implements touch detection infrared signal reception, and a smart pen microprocessor (22) of the infrared smart pen (2) receives a current movement parameter sent by an acceleration detection unit (23), generates a page control command for performing an operation on a display page of the infrared touch display (1) according to the current movement parameter and sends the page control command to the infrared touch display (1) via an infrared signal. The present invention implements interaction device communication by means of infrared signals, increases the quality of communication between the smart pen and the display device, reduces signal interference, and generates commands on the basis of gesture recognition so that a user interaction process is more convenient.\nB: An infrared touch screen control method and control apparatus. The method comprises: according to a preset duration, setting cycles for an infrared touch screen to control an infrared touch frame (1) to perform scanning, one of two adjacent cycles being a touch cycle, the other being a data cycle (S110); within the touch cycle, controlling the infrared touch frame (1) to perform touch detection (S120); during the data cycle, controlling the infrared touch frame (1) to receive an infrared signal sent by an external data source of the infrared touch screen (S130); according to a result of the touch detection and/or the infrared signal, controlling display content of the infrared touch screen (S140). The infrared touch screen has a touch function as well as an external infrared signal receiving function, implements multiple functions on the basis of the same piece of hardware, and enhances functionality without increasing hardware costs, thereby ensuring the price advantage of the product, and increasing market competitiveness.\nC: An interaction device, and an activation method and apparatus. The interaction device comprises an infrared smart pen (1) and an infrared touch display (2). The infrared touch display (2) comprises: a touch microprocessor (22), used for encoding smart pen recognition area information and transmitting to an infrared touch frame (21); the infrared touch frame (21), used for acting as a signal source for emitting an infrared signal carrying the smart pen recognition area information. The infrared smart pen (1) comprises: a first infrared receiver (12), used for receiving the infrared signal emitted by the infrared touch frame (21); an acceleration detection unit (11), used for detecting a current movement parameter of the infrared smart pen (1) and sending to a smart pen microprocessor (13); the smart pen microprocessor (13), used for decoding the infrared signal to obtain the smart pen recognition area information, and also for determining whether to activate the infrared smart pen (1) according to the current movement parameter and the smart pen recognition area information. The interaction device performs infrared communication, thereby enhancing the activation determination condition of the infrared smart pen, and decreasing the activation misjudgment probability.\nD: An infrared signal transmission method and device and a remote controller. The method comprises: for each key of a remote controller, generating, a binary sequence corresponding to the key when it is pressed down (202); encoding and modulating the binary sequence to obtain a pulse train signal (204); sending at least two pulse train signals in the form of infrared signals before the key is released (206). The method solves the problem of poor anti-interference capability of remote controllers and low success rate of remote control existing in the technical solution involved in the background art; and increases the probability of the infrared signals being received completely, that is, improves the anti-interference capability of the remote controller and the success rate of remote control.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a wallpaper shooting and previewing method. The method comprises: when shooting, a mobile terminal setting a shooting and previewing interface as a full screen mode, and loading a time and menu prompt on a current standby interface to the shooting and previewing interface; and after a shooting key is pressed down, the mobile terminal generating a wallpaper interface from a shot photo, and displaying same to a user. Also disclosed at the same time is a wallpaper shooting and previewing device. Through the solution of the present invention, a user can preview wallpaper on a shooting interface, an immediate what-you-see-is-what-you-get wallpaper preview function is provided, the user experience is increased, and the entertainment is enhanced.\nA: Disclosed are a picture display processing method and a picture display processing device, which are used for improving the picture display effect and efficiency. The method comprises: previewing wallpaper along with a sliding gesture from a first boundary of the wallpaper when acquiring a gesture sliding instruction of a user in a first display region under a wallpaper preview application; and previewing the wallpaper along with the sliding gesture from a second boundary of the wallpaper when acquiring a gesture sliding instruction of the user in a second display region under the wallpaper preview application. Further disclosed is a device for implementing the method.\nB: Disclosed are a method and a system for processing a photograph. The method is applied to a mobile terminal, comprising: saving a new photograph shot in a camera mode in a root folder of the camera mode; matching the new photograph with a template in a template library of the camera mode, and if the matching succeeds, moving the new photograph to a folder corresponding to a matched matching template. According to an embodiment of the present invention, the new photographs shot in a shooting process are automatically classified and saved in the folder corresponding to the template in the camera mode, which thereby saves a burden for a user manually classifying a large number of photographs, and improves user experience.\nC: The present invention relates to the technical field of electronic products. Disclosed are a method and device for automatically setting a photographing mode, solving the problem in the prior art that an un-ideal image photographing effect brings inconvenience to a user due to the fact that most users are unfamiliar with how to select an appropriate mobile phone photographing mode in different scenarios. The method comprises: activating the human face detection function of a photographing device, and acquiring the graphic information identifying each part of the human face in a preview interface of the photographing device; calculating a first ratio between the maximum area of the parts of the human face in the preview interface and the preview interface area according to the graphic information and the physical size of the preview interface; when the first ratio is greater than or equal to a first threshold, setting the photographing mode of the photographing device as a portrait mode; and when the first ratio is smaller than the first threshold, setting the photographing mode of the photographing device as a non-portrait mode. An embodiment of the present invention is applied in the process of setting a photographing mode.\nD: The present application discloses a display control method and apparatus, an electronic device, and a medium, which belong to the technical field of image displaying. Said method comprises: displaying a first identifier on a photographing preview interface, wherein the first identifier indicates a target album associated with a target person in a first image, and the first image is a preview image displayed on the photographing preview interface; receiving a first input from a user with respect to the first identifier; and in response to the first input, displaying an album preview interface of the target album.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a multi-functional household electric iron, which comprises a housing (10), an ironing plate (20), a heating body and a disinfection device, wherein a mounting cavity (11) is formed inside the housing (10), and an opening is formed at the top end of the mounting cavity (11); the ironing plate (20) is encapsulated in the opening; the heating body is arranged in the mounting cavity (11) and is used for heating water and generating steam; a plurality of steam outlet holes (21) are formed in the ironing plate (20); the steam is led out from the plurality of steam outlet holes (21); the disinfection device is arranged at the opening and is used for disinfection when the ironing plate (20) works. The multi-functional household electric iron can perform disinfection treatment on the surface of the clothes through the disinfection device while steam ironing.\nA: The present invention provides a suitcase, comprising a case body, and a cleaning mechanism mounted in the case body and capable of moving up and down, wherein the cleaning mechanism comprises a steam cleaning ring arm, and the steam cleaning ring arm is provided with multiple steam output holes. The suitcase involved in the present application has a function of cleaning and ironing clothes; during the operation of the suitcase, the clothes are hung in the case body; the cleaning mechanism moves up and down in the case body, thereby driving the steam cleaning ring arm that surrounds the periphery of the clothes to move up and down; and the steam cleaning ring arm ejects steam to the clothes by means of the steam output hole while moving up and down, so as to perform all-round cleaning and ironing on the clothes. In particular, according to the present application, in a process of cleaning and ironing the clothes, the clothes are hung in the case body, so that the case body has good stability and is not easy to fall; meanwhile, the periphery of the clothes is shielded by the case body, and therefore, the waste rate of steam is low, so that the steam can be effectively used for cleaning and ironing the clothes, and the utilization of steam is improved.\nB: A steam valve (100) of a cooking appliance and a cooking appliance having the same, the steam valve (100) of the cooking appliance comprising: a valve seat (10), a valve cover (20) and a blocking portion (30); a mounting cavity (a) is provided between the valve cover (20) and the valve seat (10), and the mounting cavity (a) is provided with a steam inlet (11) and a steam outlet (21); the steam inlet (11) is disposed at the valve seat (10), and the steam outlet (21) is disposed on at least one from among the valve cover (20) and the valve seat (10); the blocking portion (30) is connected to an inner peripheral wall of the mounting cavity (a), and the blocking portion (30) is close to the steam outlet (21), at least part of the steam bypassing the blocking portion (30) and then flowing out from the steam outlet (21).\nC: A clothing treatment device, comprising a housing (1), at least a clothes drying apparatus (2) being arranged in the housing, the clothes drying apparatus comprising a drying air duct (4) and a heat exchange element (5) for implementing heat exchange with the drying air in the drying air duct; and also comprising a steam generating apparatus (8), the condensation water of the heat exchange element producing water vapour by means of the steam generating apparatus and then entering a clothes drying drum (3) of the clothes drying apparatus by means of the drying air duct. The clothing treatment device implements full recovery and reuse of the condensation water of the heat exchange element, the recovered condensation water being used as the water source of the steam generating apparatus, and the produced steam ironing the clothing during clothes drying, such that the clothing is flat and smooth, and can also achieve better cleaning and disinfecting effects. The steam produced by the steam generating apparatus enters the clothes drying drum via the drying air duct, and good uniform diffusion can be achieved without the need to add additional drive force.\nD: Disclosed is a multifunctional steam iron, which is constituted of the following parts: a steam generation unit (4), which produces steam and discharges same from a steam discharge orifice (11) of a bottom plate (1); a cleaning and dedusting unit used for cleaning dust from the surface of clothes; a dust absorption unit used for absorbing and storing dust; a sterilization and deodorization unit used for killing bacteria on the surface of the clothes and eliminating peculiar smells; a control unit (5), comprising a power source, a steam generating circuit, an ultrasonic generating circuit, an electrostatic generating circuit, an ozone generating circuit and an ion generating circuit; a bottom plate (1), which is provided with the steam discharge orifice (11), an ozone discharge opening (13), a dust absorption opening (12), a second heating element (14) and a temperature sensor (15); and a housing (2).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA water and fertilizer air-heat irrigation device, comprising: a water tank (1), a fertilizer tank (2) above the water tank (1), a water pump (3) and a heating device (7); the fertilizer tank (2) is in communication with the water tank (1) by means of fertilizer delivery pipes (11), flow control devices are provided in the fertilizer delivery pipes (11), a water level sensor is provided in the water tank (1), and the water level sensor is connected to a controller by means of an electrical signal. Said device can ensure the ratio of water to fertilizer in the water tank and achieve the purpose of continuous fertilization.\nA: The present invention relates to the technical field of battery manufacturing, and particularly relates to an external water circulation temperature control system for a fuel cell fixture. The system of the present invention comprises a fixture provided with a water inlet and a water outlet in mutual communication with each other. The water outlet communicates with a constant-temperature water mixing container via a first circulation water pump, and the constant-temperature water mixing container is provided with a first temperature sensor. A hot water delivery pipeline used to deliver hot water into the constant-temperature water mixing container and a cold water delivery pipeline used to deliver cold water into the constant-temperature water mixing container are provided between the first circulation water pump and the constant-temperature water mixing container. The constant-temperature water mixing container communicates with the water inlet via a second circulation water pump. The water circulation temperature control system provided by the present invention ensures fixtures are maintained at a constant temperature, thereby improving reliability of test results. In addition, the present invention uses a data acquisition and analysis system and a control system to achieve data acquisition and control for flow volumes and temperatures, thereby enabling automation of a control process, and guaranteeing production efficiency.\nB: A cold and hot outlet water purifier, comprising: a water purification and supply device (9), a water storage tank (2), a water outlet temperature adjusting device and a control board; the water purification and supply device (9) comprises a water inlet pipe (10) and an reverse osmosis filter (92); the reverse osmosis filter (92) is provided with a water inlet opening, a pure water outlet opening and a waste water outlet opening, wherein the pure water inlet opening is in communication with the water storage tank (2); the water outlet temperature adjusting device comprises a rapid water heater (5); the water inlet opening is connected to the water inlet pipe (10) by means of a water inlet valve (94); the water storage tank (2) is connected to the water outlet temperature adjusting device by means of a water pump (4); the waste water opening is connected to a waste water valve (96); a water level sensor (1) for detecting the water level of the water storage tank is arranged on a water passage which is in communication with the water storage tank (2); the water inlet valve (94), the outlet water temperature adjusting device, the water pump (4), the waste water valve (96) and the water level sensor (1) are respectively electrically connected to the control board. Also disclosed is a control method for the cold and hot outlet water purifier. The cold and hot outlet water purifier may be combined with the water pump (4) and a flow control valve (8) to control the flow rate of water, resulting in improved heat conversion efficiency, allowing the entire heating device to quickly heat up, and achieving the aim of instant outputting boiling water.\nC: A mobile shower apparatus comprises a seat (4), a water tank (2), a water tank cover (1), a water supply hose (11), a showerhead (12), a power source and a main control device (7). A water pump (8) is provided within the seat (4). A heat disc (3) is provided within the water tank (2). A control cover (15) is arranged on the water tank cover (1). The main control device (7) comprises a relay (18) and a step-down circuit. An operation panel (14), a shower key (13), a thermosensitive temperature probe (9) and a water level detector (10) are connected to the main control device (7). The operation panel (14) and the shower key (13) are arranged on the control cover (15). The water pump (8) is connected to the main control device (7). The mobile shower apparatus meets a shower requirement of people where the infrastructures are deficient in a more convenient and quick way by an intellectual operation mode.\nD: A water saving apparatus for use in an agricultural apparatus. The water saving apparatus comprises a water collecting box (1), wherein a filter plate (3) is arranged in the water collecting box (1); the filter plate (3) is obliquely arranged; a waterproof control box (6) is arranged on a side of the water collecting box (1); a water pump (7) is arranged in the waterproof control box (6); a communication pipe (8) is connected between a water inlet of the water pump (7) and the water collecting box (1); a water supply pipe (9) is connected to a water outlet of the water pump (7); a cylinder (10) is in communication with the water supply pipe (9); the cylinder (10) is fixedly connected to a side of the waterproof control box (6); a circular shaft (11) is vertically rotationally mounted inside the cylinder (10); a spiral blade (12) is fixedly mounted on an outer side of the circular shaft (11); and a back-and-forth structure is arranged at the top of the circular shaft (11). The water saving apparatus is easy to operate, can carry out sprinkler irrigation on a whole area, can be automatically controlled, can collect and utilize rainwater, and can save water resources. In addition, further disclosed is a usage method for the water saving apparatus.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nWater-saving irrigation equipment for garden greening, comprising an irrigation equipment body (1), a transverse spraying assembly (2), a longitudinal spraying assembly (3), an elastic support member (4), and an adjustable water spraying pipe (5); the longitudinal spraying assembly (3) comprises a clamping disc (9), a triangular arc-shaped rotating member (10), a drive motor (11), a driving gear (12), a limiting gear (13), an upper limiting ring (14) and a lower limiting ring (15); and the transverse spraying assembly (2) comprises a rotation motor (18), a driving rotary shaft (19), a driving bevel gear (20), a first fixing member (21), a second rotating member (22), and a driven bevel gear (23). The present equipment belongs to the technical field of irrigation equipment for garden greening, and specifically, provided is water-saving irrigation equipment for garden greening, which enables the adjustable water spraying pipe (5) to move back and forth in transverse and longitudinal directions under the combined action of the transverse spraying assembly (2) and the longitudinal spraying assembly (3), so as to expand the area and range of irrigation, can also set the flow rate of water spraying according to needs, and is convenient to use, easy to adjust, and has an energy-saving effect.\nA: A water spray device for a garden. The water spray device comprises: a base (1), and an installation plate (2) integrally formed with the base (1). A first set of two parallel snap strips (3) is disposed at the top of the base (1). The first snap strip set (3) is connected to a second snap strip set (5) via a first snap block (4). The second snap strip set (5) is snap-connected to a movable base (7). A water spray mechanism is disposed at the top of the movable base (7). The water spray mechanism comprises: a rotary disc (8), and a water storage tank (14) connected to the rotary disc (8) via a retractable rod (10). A side wall of the water storage tank (14) is provided with a large nozzle (12) and a small nozzle (11). A water injection port (13) is disposed at the top of the water storage tank (14). The first snap strip set (3) and the second snap strip set (5) are provided perpendicularly, so that the moving trajectory of a movable plate (9) is cross-shaped. The rotary disc (8) rotates, enabling the water spray mechanism to achieve a 360° water spray and a wider spray area. In addition, the side wall of the water storage tank (14) is provided with the large nozzle (12) and the small nozzle (11), so that the amount of water spray can be controlled on the basis of the growth of a plant. The water spray device for the garden is easy to use.\nB: A wireless transmission intelligent control host water-saving irrigation device, comprising a bottom plate (15), wherein an upper surface of the bottom plate (15) is provided with a collecting box (2); a rear side of the collecting box (2) is fixedly connected to a supporting vertical plate (9); an upper surface of the supporting vertical plate (9) is fixedly connected to a placing seat (11); a front side surface of the placing seat (11) is fixedly connected to a water flow adjustment valve (10); the upper surface of the bottom plate (15) is fixedly connected to a sliding rod (17); an outer surface of the sliding rod (17) is connected to a sliding block (18) in a sliding manner; an upper surface of the sliding rod (17) is fixedly connected to a limiting plate (16); and an electric push rod (20) is arranged inside the bottom plate (15). According to the irrigation device, the irrigation angle and the height are convenient to adjust, and the operation is convenient.\nC: An irrigation bracket for a greenhouse of flowers and plants, comprising a bracket plate (1), a linkage bin (2), a rotary driving device (3), a ventilating device (4) and a centrifugal adjustable scattering irrigation rig (5). The linkage bin (2) is provided on the bottom wall of the bracket plate (1), one end of the ventilating device (4) penetrates through the bottom wall of the linkage bin (2) and is provided on the upper wall in the linkage bin (2), the other end of the ventilating device (4) is provided outside the linkage bin (2), the rotary driving device (3) is provided on the upper wall of the bracket plate (1), one end of the rotary driving device (3) penetrates through the bracket plate (1) and the upper wall of the linkage bin (2) and is connected to the ventilating device (4), and the centrifugal adjustable scattering irrigation rig (5) is provided on the bottom wall of the linkage bin (2). The irrigation bracket belongs to the technical field of seedling raising of the flowers and plants. According to the irrigation bracket for the greenhouse of the flowers and plants, an outward-convex design serves as a receiving surface for receiving irrigating water, water is uniformly sprinkled to the flowers and plants in the greenhouse in the form of water drops by a size-adjustable centrifugal force, and the defect during the traditional irrigation that the volume of sprinkled water obtained by an area close to a center of circle and an area close to the outside of circumference is obviously smaller than that obtained by a middle area is overcome.\nD: The present invention relates to the technical field of automatic filterable irrigation, and particularly relates to a filterable agricultural irrigation device, aiming to solve the problems that an existing agricultural irrigation device does not have a better function of filtering and collecting garbage during irrigation, and a spray head needs to be manually operated for spraying during irrigation, so that manpower is wasted. According to the following solution, the device comprises a base; a filter tank is fixedly mounted at the top of the base; a frame is fixedly mounted at the top of the filter tank; two telescopic rods are fixedly mounted at the top of the frame; one end of each of the two telescopic rods is fixedly connected to the same top base; a filter plate is fixedly mounted in the filter tank; a waterproof frame is fixedly mounted on the inner wall of the bottom of the filter tank; a first rotating rod is rotatably connected in the waterproof frame; a first bevel gear is fixedly connected to the first rotating rod. The present invention relates to a simple structure, angle convertible spraying is carried out by means of automatic height adjustment and automatic control, and people can use the device conveniently.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a mutant Cry2Aa insecticidal protein. Based on the amino acid sequence shown in SEQ ID NO. 1, the amino acid sequence of the insecticidal protein has one, two, or three mutations as follows: A) W78F; B) L144A, and C) R213E. Preferably, D) 28 amino acids are deleted at the N-terminal of the amino acid sequence. Further disclosed is a gene encoding the mutant Cry2Aa insecticidal protein, a recombinant expression vector comprising the same, and a method for improving the insect resistance of a plant using the same.\nA: Provided are a proline hydroxylase and an application thereof. The proline hydroxylase includes (a) a protein having the amino acid sequence as shown in SEQ ID NO: 2; (b) a protein in which the amino acid sequence as shown in SEQ ID NO: 2 has gone through mutations of one or more amino acids and which has proline hydroxylase activity; or (c) a protein which retains the mutations of one or more amino acids as in (b), which has having has proline hydroxylase activity and which has at least 78% homology with the amino acid sequence of the protein in (b). Proteins having the amino acid sequence as shown in SEQ ID NO: 2 and mutants obtained by genetically engineering the same have higher catalytic specificity or significantly increased catalytic activity when compared to existing proline hydroxylases.\nB: Provided is a bacterium for producing L-amino acid. The bacterium has improved expression of a polynucleotide for encoding a protein represented by SEQ ID NO:3 and improved expression of a polynucleotide for encoding a protein represented by SEQ ID NO:31, and/or has mutations in bases at positions -45bp and -47bp of a promotor region represented by SEQ ID NO:57. Also provided are a polynucleotide, proteins encoded thereby, a recombinant carrier and a recombinant strain comprising a polynucleotide sequence, and a method for producing L-amino acid. The polynucleotide encodes a protein which is represented by SEQ ID NO:3 and has arginine at position 334 substituted by a terminator or encodes a protein which is represented by SEQ ID NO:31 and has tyrosine at position 592 substituted by phenylalanine, or is formed by mutations in bases at positions -45bp and -47bp of a promotor region represented by SEQ ID NO:57.\nC: Disclosed are a mutant protoporphyrinogen oxidase in tobacco mitochondria and a coding gene and a use thereof. The mutant is a protein derived from SEQ ID NO: 1 by subjecting, a non-polar amino acid of at least one position of position 353, position 356 and position 372 in an amino acid sequence depicted by SEQ ID NO: 1, to substitution, deletion or addition of one or more amino acids without altering enzyme activity. Encoding the mutant gene into a target plant enables the target plant to acquire a resistance to a PPO enzyme inhibitor (herbicide) without overly affecting a catalytic activity of the enzyme. Therefore, the mutant and the coding gene thereof are useful for cultivating a plant with herbicide resistance.\nD: The present invention relates to obtaining Sip1Aa soluble pesticidal protein mutants, named Sip153-248 and Sip158-243 protein, which falls within the field of biotechnology. According to the invention, the amino acid sequence of the Sip1Aa protein is changed at two amino acids, respectively, the pesticidal activity of the obtained mutant protein Sip153-248 is improved by 2.76 times, and the pesticidal activity of Sip158-243 is improved by 2.26 times, and the solubility and stability thereof are improved to a certain extent, thereby effectively overcoming the problem of finding high virulence genes of the Bacillus thuringiensis expressed protein to colaphellus bowringi baly, and delaying the resistance development of pests to engineered bacteria and transgenic plants.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the invention is a plant growth-regulator containing 6-benzylaminopurine, and the present invention in particular relates to a water-soluble composition containing 6-benzylaminopurine and a preparation thereof; the plant growth-regulating composition comprises the following components with the following weight ratios: A. 0.05-5 parts of 6-benzylaminopurine; B. 10-30 parts of at least one alkaline ingredient selected from tripotassium phosphate, trisodium phosphate, dipotassium hydrogen phosphate, disodium hydrogen phosphate, potassium tripolyphosphate, sodium tripolyphosphate, disodium octaborate tetrahydrate, potassium tetraborate, borax, triethanolamine and ethanolamine; and C. 5-30 parts of at least one chelating agent ingredient selected from disodium EDTA, calcium EDTA, magnesium EDTA, calcium disodium EDTA, magnesium disodium EDTA, sodium citrate and potassium citrate; the present invention can effectively improve the solubility property of 6-benzylaminopurine in water, and improve the efficacy thereof; furthermore, the plant growth-regulating composition containing 6-benzylaminopurine of the present invention can also avoid the adverse effects on the health of the human body caused by using a strong acid or alkali.\nA: Provided is a synthesis method for 6-furfurylaminopurine. In the presence of 1,8-diazabicycloundec-7-ene (DBU), furfurylamine and 6-chloropurine undergo a nucleophilic substitution reaction under hexamethyldisilazane reflux conditions to obtain a 6-furfurylaminopurine crude product, and recrystallisation is performed to obtain 6-furfurylaminopurine, the HPLC purity being more than 99.5%, a single impurity being less than 0.1%. The method has a simple path process, a high yield, and no wastewater discharge.\nB: Disclosed is a balance growth regulator for plants. The balance growth regulator is characterized by comprising a filling agent and at least four crop growth regulators selected from brassinolide, methyl jasmonate, auxin (heteroauxin), salicylic acid, cytokinin, gibberellic acid, abscisic acid, ethylene and triacontanol. The product provided by the present invention is a plant growth regulator prepared by at least more than four existing endogenous plant growth regulators, so the balance growth regulator can not only be used for greatly increasing the yield, but also used for additionally producing dry matters, has desirable crop disease resistance and adverse resistance, is green and safe, and does no harm to consumers.\nC: A vaginal acid-base buffer gel and a preparation method, the gel consisting of the following components by mass: 1%-39% of an oil phase base, 60%-99% of a water phase base, 0.001%-2% of a pH regulator and 0.05%-5% of a bacteriostat, wherein the oil phase base is white petrolatum or liquid paraffin or glyceryl behenate or Span or Tween or glycerol or propylene glycol; the water phase base is hydroxypropyl methylcellulose or carbomer or sodium carboxymethylcellulose or polycarbophil or polyethylene glycol or azone or gelatin or purified water; the pH regulator is citric acid or sodium citrate or sodium hydroxide or hydrochloric acid or triethanolamine or boric acid or borax or sodium dihydrogen phosphate or disodium hydrogen phosphate; and the bacteriostat is benzoic acid or sodium benzoate or benzyl alcohol or benzalkonium bromide or benzalkonium chloride or sorbic acid or potassium sorbate or nipalgin. The prepared product may effectively regulate the original vaginal environment of inflammation, remove vaginal odor and relieve symptoms such as increased vaginal secretions or itching.\nD: The present invention relates to the field of heat storage materials. Specifically disclosed is a composite phase change regulator, comprising disodium hydrogen phosphate dodecahydrate, diatomite, polyacrylamide and sodium dodecylbenzene sulfonate. Also provided are a composite phase change heat storage material containing the composite phase change regulator, as well as the preparation for and application of the composite phase change heat storage material. According to the present invention, it is found that the combination of the quaternary active ingredients of the disodium hydrogen phosphate dodecahydrate, the diatomite, the polyacrylamide and the sodium dodecylbenzene sulfonate is synergistic, which may effectively and synergistically improve the problems of phase separation and supercooling of the phase change material, may regulate the crystallization behavior of phase change material crystals, and may assist in improving the phase change behavior of the phase change material. The composition arrangement of the present invention is reasonable, the processing technology is simple, and the heat storage behavior of the material may be directionally regulated. The adaptability is strong, making the invention convenient for large-scale application.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA broad-spectrum antiviral bactericidal plastic and an application thereof, the bactericidal plastic comprising in percentage by weight: 90-96% of basic resin, 1-3% of a modified antibacterial agent, and 0-10% of a plastic additive. The modified antibacterial agent is prepared from the following components in parts by weight: 5-15 parts of chlorophyll, 5-15 parts of tea polyphenols, 8-16 parts of taurine, 0.5-2 parts of citric acid, 6-18 parts of isomalto-oligosaccharide, 0.6-1.5 parts of yeast powder, 4-10 parts of chitosan, 30-50 parts of nano titanium dioxide, 3-8 parts of zinc oxide and 3-8 parts of ultraviolet fluorescent powder. The broad-spectrum antiviral bactericidal plastic has a broad-spectrum antiviral effect, may kill viruses and bacteria for a long time, effectively prevents virus infection that may be caused by frequent contact and and use, by users, of plastic cards such as bank cards and identity cards, and is beneficial to the health of personnel.\nA: Disclosed is an environmentally-friendly soil remediation agent. A wastewater treatment agent is compounded from two component parts, A and B, where the ratio is A:B = 1.5:2. A and B comprise the following components in parts by mass: a silicone acrylic emulsion: 15-19 parts, a char-forming catalyst: 12-18 parts, a charring agent: 2-8 parts, a foaming agent: 8-12 parts, neoprene: 7-10 parts, allyl alcohol: 3-9 parts, nano-silicon dioxide: 12-17 parts, acetobacter xylinum: 5-9 parts, a modified microsphere: 11-18 parts, a coupling agent: 22-28 parts, a UV absorber: 3-8 parts, a flame retardant: 14-19 parts, a vapor phase inhibitor: 6-9 parts; a wood fiber powder: 13-19 parts, a carbon fiber powder: 4-9 parts, activated carbon: 15-19 parts, lecithin: 10-17 parts, an ion liquid flame suppressant: 9-13 parts, a crystal-type modifier: 2-5 parts, acetic acid: 14-19 parts, a synergistic additive: 3-9 parts, citric acid: 11-18 parts, a plant fiber: 8-10 parts, a microbial agent: 3-7 parts, a nitrate nitrogen compound: 13-19 parts, and a supplementary material: 18-24 parts.\nB: A virus penetration blocking operating gown film, comprising: a virus penetration blocking thermoplastic polyurethane film that is attached onto upper and lower surfaces of a medical non-woven fabric by means of thermal compression bonding. The virus penetration blocking thermoplastic polyurethane film comprises the following components in percentage by mass: thermoplastic polyurethane: 82-85%; graphene: 6-10%; nano-silica: 7-9%; and nano-silver powder: 1-1.5%. The thermoplastic polyurethane comprises the following preparative raw materials: 50-55 parts of polyisocyanate; 20-25 parts of polyether diol; 18-22 parts of chitosan; 15-18 parts of ethylene glycol; and 4-6 parts of a stabilizer. By means of said approach, the film having a sandwich structure has the advantages of being excellent in virus blocking uniformity, high in protection level, excellent in air and moisture permeabilities, and excellent in environment friendliness.\nC: Disclosed in the present invention is an environment-friendly non-toxic wastewater treatment agent. The environment-friendly non-toxic wastewater treatment agent is formed by compounding three components A, B, and C according to the ratio of A:B:C=3:1:2, and A, B, and C contains the following components in parts by mass: 8-12 parts of an organic silicone-modified epoxy resin, 2-8 parts of a dispersant, 10-16 parts of graphite powder, 2-7 parts of potassium hydrogen phthalate, 4-9 parts of nano-silica, 22-28 parts of activated carbon, 11-17 parts of potassium dihydrogen phosphate, 3-8 parts of ferric sulfate, 12-18 parts of bentonite, 3-8 parts of aluminum sulfate, 19-22 parts of calcium hydroxide; 9-16 parts of citric acid, 11-18 parts of plant fibers, 9-13 parts of a microbial agent, 6-9 parts of an organic acid, 12-18 parts of a coagulating agent, 10-15 parts of propylene carbonate, 2-6 parts of 3-butanediol, 19-22 parts of a defoaming agent, 20-27 parts of a solvent, 13-19 parts of a polychlorate, 10-16 parts of a synergistic additive; 3-8 parts of a PVC foaming regulator LP-40, 6-10 parts of 3-methylphenol, 12-18 parts of an antioxidant, 29-31 parts of wood fiber powder, 17-20 parts of carbon fiber powder, 18-22 parts of sodium silicate, 3-8 parts of a flame retardant, 12-18 parts of a leveling agent, 13-18 parts of a stabilizer, and 16-20 parts of an auxiliary material.\nD: Disclosed are a plastic profile and a method for manufacturing same. The plastic profile comprises the components in parts by weight: 100-120 parts of polyvinyl chloride resin, 2-3 parts of organotin-carboxylate, 1-2 parts of polyacrylate resin, 8-10 parts of chlorinated polyethylene, 5-10 parts of activated calcium carbonate, 4-6 parts of rutile type titanium dioxide, 0.5-1 part of polyethylene wax, and 0.5-1 part of antibacterial and bacteriostatic additive. The present invention has the advantages that the costs are low, the heat stability is good, the rigidity is increased, the plasticizing quality is improved, and the appearance is beautified; the profile is smooth, and excellent in weather resistance, toughness, and uniformity, has antibacterial and bacteriostatic effects, and is applicable to sterile places.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided by the present invention are a novel mosquito sex pheromone and an application thereof in mosquito control. The novel pheromone of the present invention is separated from mosquitoes, and has the functions of promoting male mosquito mating competitiveness, reproductive competition ability, or ability to attract female mosquitoes. The sex pheromone can provide a new, effective way of controlling mosquito population by means of regulating and controlling the mating competitiveness and reproductive ability of male mosquitoes (especially male sterile mosquitoes or genetically modified mosquitoes).\nA: A wearable outdoor mosquito repelling apparatus (100) comprises an apparatus body (2) and a mosquito repelling device (1) fixed to the apparatus body by means of a rotary shaft (3). The mosquito repelling device comprises a microcontroller (10), an ultrasonic sensor (11), a steering motor (12), a laser transmitter (13), a speaker (15), and a blower (14). The ultrasonic sensor (11) is fixed to an upper portion of the mosquito repelling device (1). The laser transmitter (13) and the blower (14) are respectively fixed to outer sides of the mosquito repelling device (1). The ultrasonic sensor (11) detects an acoustic signal generated by a mosquito. Upon reception of the acoustic signal, the microcontroller (10) activates the steering motor to drive rotation of the rotary shaft (3), such that the laser transmitter (13) and the blower (14) synchronously rotate. The laser transmitter (13) emits a laser beam to kill the mosquito with electricity. The blower (14) generates and ejects an impinging airstream to repel the mosquito. The speaker (15) plays path guiding information indicating a path for an outdoor user to avoid the mosquito. The apparatus can effectively repel outdoor mosquitoes, thereby protecting an outdoor user from being stung and harmed by mosquitoes.\nB: Provided is a mosquito killing device; said mosquito-killing device comprises a housing (1); said housing (1) is internally provided with a fan (11); the housing (1) is provided with a mosquito-attracting lamp (12) and an accommodating cover (2); said mosquito-attracting lamp (12) is fitted to the fan (11) and runs simultaneously with it; the accommodating cover (2) is provided with ventilation holes (21) and an accommodating compartment (22); the arrangement of the accommodating cover (2) allows it to collect mosquitoes very well, ensuring the user's indoor cleanliness and hygiene while also being such that the usage of the mosquito-killing device is very safe and environmentally friendly; the bodies of mosquitoes are stored in the accommodating compartment (22) so that it is unnecessary for the user to frequently clean the mosquito-killing device, greatly reducing the workload of the user and making the mosquito-killing device more convenient.\nC: Disclosed is a mosquito-killing lamp (100) used for illuminating and killing mosquitoes, the lamp comprising at least one LED chip (80), an insect storage compartment (70), a negative pressure fan (60), a fan suspension bracket (40), a ventilation grid (50), and a power supply, and being characterised in that the insect storage compartment (70) is connected to the fan suspension bracket (40), the LED chip (80) is fixed on a lower end face of the insect storage compartment (70), the insect storage compartment (70) comprises an air inlet hole and an insect storage groove, the negative pressure fan (60) is fixed on the fan suspension bracket (40) and above the insect storage compartment (70), a gap (65) capable of allowing mosquitoes to pass through is reserved between vanes of the negative pressure fan (60) and an upper end face of the insect storage compartment (70), a plurality of ventilation holes (510) are provided on the ventilation grid (50), the size of the ventilation holes (510) can prevent mosquitoes from passing through the ventilation holes (510), the ventilation grid (50) is circumferentially provided between an outside wall of the fan suspension bracket (40) and an outside wall of the insect storage compartment (70), and the fan suspension bracket (40), the ventilation grid (50) and the insect storage compartment (70) form a space which is enclosed apart from the ventilation holes (510) and an air inlet hole (730).\nD: A natural enemy ladybug attractant for controlling aphids, comprising a ladybug sex pheromone, a synomone, and a kairomone; the synomone is a phytovolatilization substance for luring aphids; the kairomone consists of an aphid alarm pheromone, aphid extract, and an aphid honeydew volatilization substance. The present ladybug attractant exhibits excellent luring effects whether in the laboratory or during field tests, and the repeatability and stability of said effects are high. Further, the invention applies to seven-spotted ladybugs, Asian lady beetles, propylea japonica, and other such beneficial ladybugs.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA full-automatic dough kneading and noodle making machine, which comprises a water tank (1), a motor (2), a belt pulley that drives a driving gear (61) arranged on a transmission shaft (23) and meshed with a driven gear (62), a spiral noodle delivery device (3), a noodle hopper duct (4), a body (5), a terminal coupling shaft (63), a uniform water and noodle mixing distributor (7), a reducing type silo cell (8) and a spiral propeller (9), wherein a water pipe (13) is arranged at a lower end of the water tank; the water pipe is inserted into the uniform water and noodle mixing distributor; the spiral noodle delivery device is inserted into the noodle hopper duct; a top shifting fork of the spiral noodle delivery device is arranged at a lower end of a conical surface of the noodle hopper duct; a gap is formed; a bottom end of the spiral noodle delivery device, the driven gear and the terminal coupling shaft are fixedly connected; a lower end shaft of the terminal coupling shaft is connected to the spiral propeller; the spiral propeller is arranged in the reducing type silo cell; an upper end of the body is connected to the noodle hopper duct through a flange, and a lower end is connected to the uniform water and noodle mixing distributor; and the reducing type silo cell is screwed with the uniform water and noodle mixing distributor. Noodles can be fully automatically, efficiently and quickly produced, the noodles can be directly cooked in water while being produced, and the machine is safe, quick, reliable and convenient.\nA: Disclosed is a multi-functional noodle machine, comprising a machine body (1) and an electric motor (2) provided in the machine body, wherein a kneading bucket (3) is provided above the machine body, a stirring plate and a stirring rotating shaft are provided in the kneading bucket, a dough pressing barrel (4) is provided at the front of the machine body, a dough pressing screw (5) is provided in the dough pressing barrel, the front end of the dough pressing screw is sheathed with a replaceable noodle forming module (8), and a movable valve (31) is provided between the dough pressing barrel and the kneading bucket. Opening the movable valve throws dough in the kneading bucket into the dough pressing barrel under the centrifugal force of the stirring apparatus. A gear transmission system is provided between the electric motor and the dough pressing screw and stirring rotating shaft. The structure of the multi-functional noodle machine is simple.\nB: A juice extractor, comprising: a juice extraction cup component (30), a spiral propeller component (20); a first grinding convex rib (32) is disposed on the inner wall (31) of the juice extraction cup component (30); an annular residue-blocking groove (33) is disposed at the bottom of the juice extraction cup component (30); an annular residue discharge platform (35) is formed between the residue-blocking groove (33) and the inner wall (31) of the juice extraction cup component (30); the spiral propeller component (20) is rotatably disposed in the juice extraction cup component (30); a spiral second grinding convex rib (22) is disposed on the peripheral surface (21) of the spiral propeller component (20); an annular residue-blocking rib (23) is disposed at the bottom of the spiral propeller component (20); the annular residue-blocking rib (23) is inserted into the residue-blocking groove (33); and a plurality of third grinding convex ribs (36) are intervally disposed on the top face of the residue discharge platform (35). In the juice extractor with the above structure, the first grinding convex rib (32) and the second grinding convex rib (22) are coordinated to grind fruit or vegetables the first time, and the third grinding convex ribs (36) and the bottom of the spiral propeller component (20) are coordinated to grind the fruit and vegetables the second time, thus greatly improving juice yield, and reducing the waste from raw juice material.\nC: Disclosed is a drive device with a forward revolving blade and a counter-revolving blade, comprising a drive shaft (8), a forward revolving blade (2), a base unit (1) with a central hole, and a counter-revolving blade (3) with a central hole, wherein the drive shaft (8) passes through the central hole in the base unit and the central hole in the counter-revolving blade to connect with the forward revolving blade. The lower end of the drive shaft has a driving gear wheel (7), an inner gear wheel (4) and a bearing fixing seat (5) are provided in the base unit, and a driven gear wheel (6) is provided on the bearing fixing seat. One edge of the driven gear wheel engages with the driving gear wheel, and the other edge engages with the inner gear wheel. The counter-revolving blade is fixedly mounted on the top end of the inner gear wheel. Since the chopping action of the forward revolving blade and the counter-revolving blade works in different directions, the result is more finely processed food.\nD: A mechanical underwater manual propeller, comprising a screw propeller (5) mounted on a screw propeller shaft (11); the screw propeller is provided with a first bevel gear (9) in the back, and is provided with a concentric protective ring (1) on the outer side; one side of the protective ring is provided with a support plate (6); the support plate is provided with a first gear (3) and a second gear (7) intermeshed thereon; the support plate is also provided with a transitional gear (2) thereon forming a meshing pair together with the second gear; the drive shaft of the transitional gear penetrates through the support plate, and one end thereof located in the protective ring is provided with a second bevel gear (10); the first gear is connected to a first connecting rod (4); the second gear is connected to a second connecting rod (8); and the screw propeller shaft is provided with a one-way flywheel thereon. The propeller utilizes the mechanical drive principle to convert human power into forward motion most efficiently, and can realize a high swimming speed without excessive consumption of energy.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a new bifunctional lipase mutant and uses thereof in flour product processing. An amino acid sequence of the mutant has mutations in the form of 1) or 2): 1) P298T; P298T/H317P; P298T/H317P/V326S; P298T/T218S/S234F; P298T/H317P/P168L/A129S; P298T/S234F/K161R/V326S; and 2) a nucleotide sequence with homology over 80% that is obtained through deletion, substitution, insertion or mutation of bases on the basis of a nucleotide sequence defined in 1). The mutant has good application effects in flour product processing. The mutant has a significant whitening effect in processing of flour products such as steamed bun and has an effect of significantly increasing the specific volume in bread baking processing, and therefore has a good application prospect.\nA: Disclosed is a nitrilase mutant and an application thereof. The mutant is obtained by one or more substitutions of amino acids at position 201 or amino acid sequences at positions 324-381 of the amino acid sequence shown in SEQ ID No. 2. Following protein modification, the thermal stability of the pure enzyme of nitrilase LNIT5 at 45°C is increased by a maximum of 4.5 times. By hydrolyzing 1-cyanocyclohexane acetonitrile under a high temperature (45°C) using a recombinant Escherichia coli containing a nitrilase mutant, the product yield is increased. Therefore, the obtained mutant is favorably applicable for high-efficacy catalysis of 1-cyanocyclohexane acetonitrile to synthesize 1-cyanocyclohexane acetic acid, which is an intermediate of gabapentin.\nB: A double-carbonyl reductase mutant and application thereof. An amino acid sequence of the double-carbonyl reductase mutant is the mutant amino acid sequence coded by SEQ ID NO:9, the mutant amino acid sequence has at least two mutation sites: NO:94, NO:151, NO:231, NO:236 and NO:251, and the I mutation of NO:94 is V, A or G; the V mutation of NO:151 is Q, N or S; the F mutation of NO:231 is W, Y or P; the I mutation of NO:236 is L, V or A; the Q mutation of NO:251 is H, R or K; or the amino acid sequence of the double-carbonyl reductase mutant has the mutation sites in the mutant amino acid sequence, and has greater than 90% homology with the mutant amino acid sequence. The enzymatic activity of the double-carbonyl reductase mutant having the mutation sites is improved substantially.\nC: Provided is a transaminase mutant, having a sequence on which an amino acid mutation takes place on the basis of the sequence as represented by SEQ ID NO: 13. Provided is an enatioselective flipped ω-transaminase ATA-117 mutant. The amino acid sequence of the mutant is as represented by SEQ ID NO: 1; the nucleic acid sequence coding the mutant is as represented by SEQ ID NO: 2. Also provided is a plasmid carrying the nucleic acid sequence, genetically engineered bacteria expressing the ω-transaminase ATA-117 mutant, and a method for producing (1R,2R)-1,3-dihydroxy-2-amino-1-p-methylsulfonylphenylpropane with the ω-transaminase ATA-117 mutant.\nD: Provided is a lipase mutant and an application thereof. The amino acid sequence of the lipase mutant has the sequence shown in SEQ ID NO: 1, that is, the amino acid mutation site comprises a V154L site. The protein structure and function of the lipase mutant are changed, the solubility of the expression of same in E. coli is improved, and the catalytic activity of the enzyme is improved. In practical applications, the dosage of the enzyme is reduced, the reaction volume is reduced, and the difficulty of post-processing is reduced, and same is suitable for industrial production.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method of applying a recombinant wheat endoplasmic reticulum thiol oxidoreductin to improve flour processing quality, comprises: prokaryotic expressing and purifying the recombinant wheat endoplasmic reticulum thiol oxidoreductin; mixing the recombinant enzyme with flour, sugar, salt, vegetable oil, yeast powder and water evenly, the obtained dough is divided, weighed, formed and proofed, and then baked to get a finished bread. The recombinant wheat endoplasmic reticulum thiol oxidoreductin is added with a level of 0.05% to 0.2% (w/w, flour basis) .\nA: Provided is a method for improving the expression level of a recombinant protein in an endosperm bioreactor. By using storage glutelin mutant (LGC-1) hybridization or gene editing (TALEN technology and CripsrCas9) technology, the method carries out the targeted knockout of a gene of an endogenous storage protein, reduces the content of the endogenous storage protein, relieves the endoplasmic reticulum stress, and improves the transport efficiency of the recombinant protein in endosperm cells, thereby improving the expression of the recombinant protein in endosperm cells and achieving the increased yield of rice lines with the recombinant protein and a significant improvement in the expression level of an exogenous recombinant protein under the Oryz  HiEXP  technological platform.\nB: Provided are a recombinant pseudomonas plecoglossicida for producing L-xylose and an application thereof. The recombinant bacterium expresses a 2-keto gluconate reductase gene, a 2,5-diketo gluconate reductase gene, and a pyruvate decarboxylase gene which are successfully expressed in a host pseudomonas plecoglossicida by means of a double-plasmid system; an obtained strain is fermented for 56 h on a shake flask, the yield of L-xylose can reach 16.2 g/L, and the conversion rate reaches 20.3%; the strain is fermented for 48 h and 44 h on a 3L and 15L fermentation tank, respectively, the yield of L-xylose can reach 37.6 g/L and 45.8 g/L, respectively, and the glucose conversion rate is 47.0% and 57.3%, respectively.\nC: A bread dough made of vegetables, fruits, flour, eggs or milk, and a method for making the same: grounding vegetables or fruits into a flocculent slurry, and taking out some of the slurry to be stewed in a double-boiled manner, then mixing the same with flour to carry out a first mixed fermentation; mixing the dough after the first mixed fermentation, with eggs, milk, flour and yeast, so as to carry out a second mixed fermentation; mixing the dough after the second mixed fermentation, with the remaining slurry which has been extruded and concentrated, and then baking the same.\nD: The present invention relates to the technical field of biocatalysis. Disclosed are (S)-carbonyl reductase heteropolymers and an application thereof in the catalysis of polybenzene ring compounds. Recombinant bacteria of the (S)-carbonyl reductase heteropolymers are constructed, and heteropolymers SCR/SCR2 and SCR2/SCR3 are obtained and are applied to the catalysis of 2,4-dichlorobenzophenone and 2-acetonaphthone. The present invention effectively extends a substrate spectrum of biocatalysis of (S)-carbonyl reductase systems (SCR, SCR2, and SCR3) by means of expression and purification of proteins of the heteropolymers, and provides a novel oxidoreductase for the biocatalysis of polybenzene ring compounds.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA frozen fish sorting device, comprising a first-stage scattering device (1), a second-stage scattering device (2), a third-stage scattering device (3), a detection and recognition device (4) and a multi-track multi-stage sorting device (5), which are sequentially connected. The first-stage scattering device (1) scatters a large pile of frozen fish, which enters from a feeding hopper (11), into several frozen fish. The second-stage scattering device (2) is used for feeding frozen fish, which are input by means of a second conveyor belt (17), into the next stage one by one. The third-stage scattering device (3) is used for enabling the frozen fish to enter the detection and recognition device (4) one by one. The detection and recognition device (4) performs grading according to weight and type. The multi-track multi-stage sorting device (5) comprises a sixth conveyor belt (52) and a plurality of groups of sorting baffles (54) controlled by stepping electric motors. The stepping electric motors receive signals from the detection and recognition device (4) to open the corresponding sorting baffles (54), such that frozen fish enters, along the baffles (54), a container corresponding to the weight and type of the frozen fish, so as to complete sorting. The frozen fish sorting device is fully automatically controlled, can grade the type and weight of frozen fish and has high sorting efficiency.\nA: An automated sorting system, comprising: a primary conveyor belt (11); a plurality of sorting conveyor belts (121, 122, 123) respectively connected to the primary conveyor belt (11); a plurality of secondary sorting conveyor belts (131, 132, 133) respectively connected to one or more sorting conveyor belts (121, 122, 123); a plurality of actuators(141, 142, 143) respectively located near the connecting points of the primary conveyor belt (11) and the sorting conveyor belts (121, 122, 123), and near the connecting points of the sorting conveyor belts (121, 122, 123)and the secondary sorting conveyor belts (131, 132, 133). The actuators (141, 142, 143) are used to transfer the goods on the primary conveyor belt (11) to the sorting conveyor belts (121, 122, 123) or transfer the goods on the sorting conveyor belts (121, 122, 123) to the secondary sorting conveyor belts (131, 132, 133). The automated sorting system can reduce the extent of manual intervention and has high accuracy.\nB: Disclosed is a high-efficiency, serial biaxial dynamic classification and recovered dust milling apparatus with automatic baffleplate regulation, used for classification of a gas-solid two-phase fluid in an air-dust mixture. A ring of milling gears (34) to perform staged milling on recovered dust is mounted in an annular space between an outer conical housing (27) and an inlet pipe (1). An axial flow wing-type vane (3) mounted on the outside of the lower part of an inner conical body (5) which is, as a whole, driven into rotation by a variable frequency electric motor (11). A moving vane rotor (10) for centrifugal classification is fixedly mounted on the outside of a top cone (8). The extent of opening of first-stage baffleplates (6) and second-stage baffleplates (7) are respectively controlled and regulated by an automatic baffleplate-regulating mechanism. The present invention adopts multi-stage classification of a gas-solid two-phase fluid of air-dust and staged milling of recovered dust, improving the classification efficiency of the classification apparatus to a great extent, thereby improving the output of a pulverizing plant to a great extent, and reducing pulverization unit consumption, while also greatly expanding the range for regulating the fineness of coal dust and the coal dust uniformity index; therefore greatly improving the adaptive capability of power plant boiler combustion to the type of coal. The present invention can also be applied to material classification apparatuses in industries such as the cement, metallurgy or petrification industry.\nC: Disclosed is an industrial logistics impurity screening device facilitating multi-stage screening. An article enters by means of a feeding conveyor belt (1) and an image sensor (6) senses the dimensions of the article. For an unqualified product, first and second driving members (9, 14) and first and second push plates (10, 15) push undersize articles to a first discharge conveyor belt (17), and push oversize articles to a third discharge conveyor belt (19). For an article with qualified dimensions, a first electric motor (22) drives two first guide plates (20) to rotate away from each other, a second discharge conveyor belt (18) is actuated, and the article enters the second discharge conveyor belt (18). A weight sensor (23) senses the weight of the article, and if the weight is qualified, a second electric motor (30) drives a second guide plate (28) to rotate anticlockwise and the product enters a qualified product area through a first discharge port (25), otherwise, the second guide plate rotates clockwise and the product enters an unqualified product area through a second discharge port (26). Two counters (7, 24) count the total number of products and the total number of qualified products after preliminary screening, respectively.\nD: A robot cargo sorting system capable of identifying shelf transfer, and a sorting method thereof. The sorting system comprises: movable shelves (2), each of which is provided with a plurality of cargo boxes (21) for loading and unloading cargo, the movable shelves (2) being fixedly provided with identification devices (3) and capable of moving to any vacant unloading region; sorting robots (1), a plurality of sorting robots (1) being provided and capable of travelling on a sorting platform (11), and the sorting robots (1) also being capable of transporting received cargo to a designated unloading region for unloading; a sorting robot positioning device; an introduction device; loading and unloading robots (5), which can receive cargo unloaded from the sorting robots (1), and can also unload the cargo and load a predetermined vacant cargo box (21) of the movable shelves (2) with same; detection devices (4), which can acquire information of the identification devices (3); and a server, which is connected to controllers of the sorting robots (1) in a wireless mode, and is connected to controllers of the loading and unloading robots (5), the detection devices (4) and the introduction device in a wired or wireless mode. The robot cargo sorting system and the sorting method thereof have the beneficial effects of a compact structure, a large sorting amount, full utilization of space and high sorting efficiency.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for sterilizing and preserving fresh mulberry fruits is provided, relating to the technical field of fruit preservation. The method comprises the following steps: (1) laying fresh mulberry fruits in a single layer in a hermetic container; and (2) introducing atmospheric plasma into the hermetic container for sterilization to obtain sterilized fresh mulberry fruits. The method provided in the present disclosure can effectively inactivate bacteria, yeast and fungi on the surface of the mulberry fruits, such as Botrytis cinerea, Salmonella, Escherichia coli, Staphylococcus aureus and Bacillus cereus. The method provided in the present disclosure has no significant impact on mulberry fruit qualities such as pH, TSS, hardness and color, and can significantly reduce rotting incidence and mildew incidence. The rotting incidence can be reduced by up to 30.00% and the mildew incidence can be reduced by up to 25.14%.\nA: Disclosed in the present invention are derivatives of naftifine hydrochloride, and a preparation method and use thereof. The derivatives of naftifine hydrochloride of the present invention have a structure as shown by formula (I), wherein Ar has the definition as described in the description and claims. By inhibiting the expression and/or function of key catalyzing enzyme CrtN in a golden yellow pigment synthesis pathway and powerfully inhibiting the synthesis of golden yellow pigments, the virulence of bacteria can thus be lowered. The key catalyzing enzyme CrtN in the golden yellow pigment synthesis pathway can be used as a drug target; and compounds capable of inhibiting the expression and/or function of the catalyzing enzyme CrtN can be used for preparing anti-bacterial drugs. The naftifine hydrochloride and the derivatives thereof in the present invention can be used as inhibitors for the catalyzing enzyme CrtN to powerfully inhibit the synthesis of golden yellow pigments, so that the virulence of  Staphylococcus aureus  can be lowered, and same can thus be used for preparing the anti-bacterial drug, and especially a drug for resisting  Staphylococcus aureus  infections.\nB: A preservation method for fruit transportation, comprising the following steps: an inactivation step, comprising disrupting fruit cells, releasing cell content and stopping cellular bio-metabolism; and a preservation step, comprising freezing a disrupted cell product for ease of transportation. The preservation method and the product thereof release cell content in a novel way by means of inactivation by disrupting fruit cells, thereby obtaining cell content necessary for high quality fruit aroma and texture, and stopping the bio-metabolism of the fruit cells, thereby preventing freezing damage to fruit at low temperatures. Freezing after inactivation can delay and even stop chemical reactions of various components in fruits, preserving freshness without needing to add any additives or preservatives, and also preserving the fresh texture and aroma of fruits for a long time. The product prepared using the preservation method is easy and elegant to use, facilitates transport, has high efficiency and resolves the global issue of fruit transportation and preservation.\nC: The present invention relates to the field of disinfectants. Provided in the present invention is a disinfectant composition, which comprises, in percentages by mass: 59-88% of ethanol, 1.5-8% of isopropanol, 0.2-8% of urea, 0.2-6% of an organic acid, 0.1-2% of borneol, 0.1-3% of a zinc salt, and the balance of water. The disinfectant composition provided by the present invention can be applied to the surface disinfection of various inanimate objects, and can also be applied to skin disinfection to effectively play a role in killing Staphylococcus aureus, Escherichia coli, Candida albicans, Pseudomonas aeruginosa, poliovirus, adenoviruses, norovirus, polyomavirus, etc. Strict disinfection requirements are met, and no skin irritation is caused.\nD: Disclosed are a method and a device for the deodorization, sterilization and disinfection of a refrigerator, wherein a modified silicon dioxide non-metal nano-material (I) is first purified and then formed into a powder; the powder is then placed on a special electron-generating device (III), and the electron-generating device (III) can continuously generate a large number of positive and negative ions; and meanwhile, the powdery modified silicon dioxide nano-material (I) is mixed with a new environmentally friendly biological preparation material drug (II). In the method, a large number of positive and negative ions are generated by means of the electron-generating device (III), which can not only sterilize and disinfect on its own, but also improve the adsorption strength of the modified silicon dioxide nano-material, and achieve the bi-directional adsorption by positive and negative ions of odors, bacteria, heavy metals and chemicals such as carcinogenic chemicals to the modified silicon dioxide nano-material (I), and the mixed environmentally friendly biological preparation (II) is also capable of killing bacteria and toxins such as Escherichia coli, Candida albicans, Staphylococcus aureus, and Aspergillus niger, and the three work together to have a significant effect in the deodorization, sterilization and disinfection of a refrigerator.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to infant formula milk powder capable of preventing and alleviating infant iron deficiency anemia and a preparation method thereof. The formula milk powder comprises contents such as vegetable oil, fresh milk, whey powder, lactose powder, whey protein powder, oligosaccharides, complex vitamins, and complex minerals. The appropriate mass ratio of lactoferrin to vitamin C or an iron source (as iron) to lactoferrin and vitamin C, and the formula milk powder of the present invention is obtained by performing mixing, homogenizing, cooling, concentration and spray-drying, packaging or directly using a step-by-step mixing method. The formula milk powder comprises an appropriate amount of vitamin C and lactoferrin, and is further provided with an appropriate quantity of iron source, and the three are combined according to an appropriate proportion, so that the three substances have a synergistic effect, and the absorption and utilization rate of iron is increased dramatically, thereby not only achieving the desirable iron supplementation effect but also preventing and alleviating the infant iron deficiency anemia phenomenon.\nA: The present invention relates to an iron-based montmorillonite medicament for treating hyperphosphatemia and iron-deficiency anemia, and a preparation method therefor. The medicament comprises an effective ingredient iron-based montmorillonite, and the iron-based montmorillonite (Fe-montmorillonite) is obtained by soaking or eluting medicinal montmorillonite by using a water soluble iron salt solution. A preparation prepared by using the effective ingredient and adding a pharmaceutical excipient or prepared by using the effective ingredient and not adding the pharmaceutical excipient is administrated through a gastrointestinal tract, and the effective ingredient and phosphate in a digestive tract of a patient are combined into an insoluble substance and the insoluble substance is discharged from the body through the digestive tract, so as to reduce phosphate in the body of the patient suffering from chronic renal failure, thereby achieving the objective of treating hyperphosphatemia. In addition, the iron-based montmorillonite dissociates iron ions uncombined with phosphate, the iron ions are absorbed by a human body, and iron ions in the human body are supplemented, thereby achieving the objective of treating iron-deficiency anemia of the patient suffering from the chronic renal failure. The medicament can also be used as a preventive for preventing hyperphosphatemia and iron-deficiency anemia of the patient suffering from the chronic renal failure.\nB: A hydrolysed protein debittering composition and the product, preparation, and application thereof, the composition comprising short chain fatty acids, medium chain fatty acids, and long chain fatty acids; based on the total mass of the short chain fatty acids, medium chain fatty acids, and long chain fatty acids being 100%, the content of the medium chain fatty acids is 0.2-4.7%, the content of the long chain fatty acids is 95.1-99.4%, and the remainder is short chain fatty acids. The present hydrolysed protein debittering composition can be used for preparing infant formula milk powder, milk powder for the elderly, and other infant formula food for special medical uses.\nC: The present invention relates to the field of rice seeds, and discloses a formulation for increasing the seed setting rate of rice, a preparation method therefor and use thereof. The formulation is made from the following raw materials by mass percentage: 70.00 to 80.00% of a vine tea extract dihydromyricetin, 6.00 to 10.00% of a semen armeniacae amarae extract, 3.00 to 5.00% of a mulberry root extract, 3.00 to 5.00% of a resveratrol, 2.00 to 4.00% of vitamin E, 2.00 to 4.00% of vitamin C, 1.00 to 3.00% of agricultural streptomycin sulfate, and 1.00 to 3.00% of paclobutrazol. The raw materials are weighed according to the described ratio, placed into a mixing tank, stirred until uniform, and packaged with a composite aluminium bag or tank, so as to obtain the formulation for increasing the seed setting rate of rice. The present invention has the advantages of reasonable formulation, simple processing and convenient use, providing an ideal medicament for increasing the seed setting rate.\nD: Disclosed is a powdered milk formula containing peptides for middle-aged and elderly people, comprising following raw materials in parts by weight: 50-85 parts of milk powders, 5-30 parts of bioactive peptides, and 2-15 parts of prebiotics. Proteins, peptides and oligopeptides in the powdered milk are absorbed gradually, such that the physical functions of the human body can be regulated, promoting the human body to absorb nutrients from the powdered milk, and with the help of the added prebiotics, improving the physical condition of a human body comprehensively.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA healthcare tea, including the following raw material components: 7-12 parts of tangerine peel, 11-25 parts of cocculus sarmentosus, 10-32 parts of hedyotis diffusa, 4-12 of mint leaves, 4-12 parts of wolfberry, 4-16 parts of chrysanthemum morifolium, and 7-30 parts of dendrobium nobile. The healthcare tea appropriately relieves chronic diseases, removes dampness and promotes diuresis, and is used to adjust a suboptimal health status in a person's body caused by dampness and heat, improve the quality of life and work, and increase happiness. The costs of the proportioned raw materials of the healthcare tea are low, for the benefit of the general population.\nA: A traditional Chinese medicine compound combination with the anti-prostate cancer effect and its application. The traditional Chinese medicine compound combination comprises the following traditional Chinese medicine raw materials by weight: 4 to 12 parts of bark of Ailanthus altissima, 12 to 30 parts of Hedyotis diffusa, 3 to 15 parts of Curcuma zedoaria, 15 to 30 parts of Salvia miltiorrhiza, 5 to 15 parts of Prunella vulgaris, and 4 to 12 parts of Glycyrrhiza uralensis. For the traditional Chinese medicine compound combination with the anti-prostate cancer effect, the materials are selected and combined according to the theory of traditional Chinese medicine and the pathogenesis of prostate cancer, and the proportions of the components are scientific and reasonable. Results of pharmacology experiments and clinical experiments show that the traditional Chinese medicine compound has a good anti-prostate cancer effect, and not only can significantly inhibit the proliferation and growth of prostate cancer, but also can inhibit the migration, invasion, and metastasis of prostate cancer, significantly improves the quality of life of a tumor-burdened mice, and improves immune indexes of the tumor-burdened mice. In addition, administration of the compound is convenient and simple, and the compound brings no obvious adverse reaction. The traditional Chinese medicine compound can be developed as a new-generation anti-prostate cancer drug, and is expected to become an effective prescription for the treatment of prostate cancer.\nB: A soup for treating insomnia and dysphoria is prepared from the following main raw materials in proportion by weight: 5-10 parts of  Ziziphus jujube , 4-9 parts of  Commelina hengalensis L. , 10-20 parts of  Hericium erinaceum , 10-20 parts of  Setaria italica , 5-15 parts of apple, 7-13 parts of  Dioscorea polystachya , 4-10 parts of  Apocynum venetum , 5-10 parts of  Fructus Lycii , 3-7 parts of  Benincasa hispida , 2-4 parts of pollen, 5-10 parts of  Radix Astragali , 3-8 parts of lotus seeds, and 5-15 parts of  Fructus Mori . The medicinal materials above are easily available, low in costs, and mild.\nC: A blood fat-reducing and blood pressure-reducing health care tea and a preparation method therefor. The health care tea is prepared by means of the following raw materials in parts by weight: sandalwood leaf 10-40, lupin leaf 10-30, moringa seed leaf 10-30, chickpea leaf 10-30, sandalwood seed 5-20, moringa seed 5-20, lupin 5-20, and chickpea 5-20. The preparation method comprises: extracting, filtering, precipitating, and re-filtering the sandalwood leaf, lupin leaf, moringa seed leaf, chickpea leaf, sandalwood seed, moringa seed, lupin, and chickpea by using water; drying a filtrate to obtain a blood fat-reducing and blood pressure-reducing health care tea.\nD: Disclosed is a topical patch for treating infertility using Chinese herbal medicines as raw materials composed of the following raw materials at the following weight ratios: 7-8 parts of  cuscuta chinensis lam , 4-6 parts of teasel root, 2-4 parts of  herba taxilii , 2-4 parts of fructus psoraleae, 2-4 parts of  rhizoma cibotii , 2-3 parts of barbary wolfberry fruit, 1-3 parts of  radix paeoniae alba , 2-4 parts of  radix rehmanniae preparata , 2-4 parts of asiatic cornelian cherry fruit, 2-3 parts of  rhizoma atractylodis macrocephalae , 3-4 parts of  astragalus membranaceus , 2-3 parts of  codonopsis pilosula , 1-3 parts of  rhizoma dioscoreae , 1-2 parts of  caulis bambusae  in taeniam, 1-2 parts of perilla leaf, 1-2 parts of  villous amomum  fruit, 1-2 parts of  radix aucklandiae , 1-2 parts of  herba ecliptae , 1-2 parts of  crinis trachycarpi , 1-2 parts of  charred folium artemisiae argyi , 1-2 parts of  scutellaria baicalensis , 1-2 parts of  uncaria rhynchophylla , 1-2 parts of  radix glycyrrhizae .", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe invention belongs to the field of collagen/gelatine preparation, and provides a method for the preparation of soluble collagen. The invention employs a dual 90 bone gelatine prepared by alkaline process, adds acid protease to control the degradation of bone gelatine after adjusting the pH of the dual 90 bone gelatine solution by inorganic acid; or adds neutral protease or alkaline protease to control the degradation of bone gelatine after adjusting the pH by inorganic base; brings the bone gelatine solution with protease added to react at room temperature, then adjusts the pH of the solution after reaction to 5-6.5; then performs a heat extraction by increasing the temperature to 65-75 ℃; inactivates the enzyme by water bath at 95-100 ℃ for 5-15 minutes; performs purification and drying by ultrafiltration and spray drying; and eventually gives a soluble collagen powder product. The invention also provides a soluble collagen obtained by the method, and use of the soluble collagen in the preparation of pharmaceuticals, foods and cosmetics.\nA: A quality control method for biologically active collagen. Specifically, acidic zymolytic conditions are employed to achieve efficient extraction of bovine tendon type-I collagen and optimize collagen production processes. Enzyme reaction time, dialysis time, and dialysis bag retained molecular weight are changed to control the molecular weight and molecular weight distribution of the collagen. A terminal peptide is removed to control the immunogenicity of the collagen. Transmission electron microscopy is used to characterize the triple helix structure of the collagen to determine the biological activity of the collagen. The prepared type-I active collagen meets international standards, providing a basis for further application of collagen.\nB: Disclosed is a method for preparing packaged water, the method comprising the following steps: step 1. mixing sodium alginate, konjac flour, xanthan gum, carrageenan and potassium sorbate until uniform, adding same to water, and then stirring same until uniform under a condition of 90ºC to obtain a mixed liquid; step 2. mixing gelatin and water and then placing same in an ice water bath for 4 hours, then heating same to 120ºC and then adding a mixed material, and mixing same until uniform to obtain a wall material solution, wherein the mixed material is prepared by dissolving soluble proteins in water; and step 3. adding the wall material solution into a mold, reducing the temperature to 50ºC to form a layer of film, then bringing one side of the film into contact with a calcified material, and then making the other side of the film into a capsule for containing drinking water, charging the drinking water into the capsule, and sealing same to obtain the packaged water. The packaged water can be edible as a whole, thereby avoiding creating plastic wastes.\nC: The present invention relates to the technical field of biological food materials, and disclosed in the present invention are a cross-linked hydrogel for muscle stem cell culture, and a preparation method therefor and an application thereof. The present invention comprises: dissolving collagen to form a solution, then adding certain amounts of an alginate and a heparan sulfate proteoglycan, and uniformly mixing same with the collagen solution; and then adding ε-PL and TG enzyme into the solution, uniformly stirring same, and placing the slurry in a mold for crosslinking to obtain a hydrogel. According to the hydrogel in the present invention, the collagen is linked to the polylysine and heparan sulfate proteoglycan by means of the TG enzyme to form covalent cross-linking, and a dense three-dimensional "egg box" network structure is formed by means of physical electrostatic interaction between the polylysine and alginate. The use of the hydrogel can enhance absorption of nutrients by muscle stem cells and facilitate the growth of the muscle stem cells. The double-cross-linked network hydrogel has the potential as scaffolds for growth of muscle stem cells in stem cell-based meat culture.\nD: Disclosed are a pre-loadable dried biological heart valve and a preparation method thereof. The preparation method comprises: Step A: soaking a fresh animal pericardium in an aqueous solution of soluble elastin or glycosaminoglycan, followed by subjecting the pericardium to a first cross-linking reaction in a mixed solution of carbodiimide/N-hydroxysuccinimide to allow the soluble elastin or glycosaminoglycan to bind to the pericardium via a chemical bond; and Step B: subjecting the pericardium having undergone the first cross-linking to a second cross-linking reaction in an aqueous glutaraldehyde solution, followed by drying the pericardium having undergone the second cross-linking, thus obtaining the pre-loadable dried biological heart valve. The dried biological heart valve obtained by the above preparation method has good toughness, and can rapidly flatten out in a simulated bending test.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to a use of an extract of the overground part of Scutellariae radix in aquaculture. The overground part of Scutellariae radix comprises at least one of Scutellariae radix stems, Scutellariae radix leaves and Scutellariae radix flowers. The extract of the overground part of Scutellariae radix has a good inhibitory effect on aquatic pathogenic microorganisms, does not readily develop drug resistance, and is suitable for large-scale application in aquaculture.\nA: A whitening and anti-wrinkle traditional Chinese medicine composition, a mixed extract thereof and an application thereof, the composition comprising Gastrodia elata, Bletilla striata, Cortex moutan, Panax ginseng, Safflower, Panax notoginseng, Salvia miltiorrhiza, Glycyrrhiza uralensis, Lycium chinensis and Scutellaria baicalensis. The mixed extract of the composition can inhibit tyrosine kinase, having an antioxidant effect, promoting the growth of collagen, and being used in cosmetics.\nB: An application of baicalein in preparing a drug for preventing and/or treating a disease caused by a novel coronavirus infection. In particular, the present invention relates to the application of baicalein and a baicalein-containing pharmaceutical composition in preparing a drug for preventing and/or treating a disease that is caused by a novel coronavirus (SARS-CoV-2) infection, the infectious disease comprising mild, moderate, and severe infections caused by the novel coronavirus, particularly novel coronavirus pneumonia.\nC: Provided are applications of a myristic acid derivative in preparing an animal growth promoter. The myristic acid derivative comprises a salt of myristic acid and a glyceryl ester of myristic acid. The myristic acid derivative has significant inhibitory activities with respect to common infectious bacteria of animals, provides great effects in terms of controlling the rate of diarrhea in animals and improving production performance in animal farming, and is applicable in farmed animals such as livestock, poultry, and aquatic products.\nD: A traditional Chinese medicine composition and an application thereof. The traditional Chinese medicine composition is prepared from active pharmaceutical ingredients ephedra, gypsum, weeping forsythia capsule, root of baikal skullcap, white mulberry root-bark, bitter apricot seed, root of grand hogfennel, tuber of pinellia, dried tangerine peel, bulb of fritillary, achene of great burdock, honeysuckle flower, root and rhizome of sorrel rhubarb, platycodon root, and root of ural licorice, and has the effects of resisting virus, protecting organ, and improving immunity.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nJellylike fluid fish food and a preparation method therefor. Raw materials of the jellylike fluid fish food comprise import powdered fish meal, powdered Antarctic krill meal, powdered squid meal, α-starch, vitamins, mineral substances, fish oil, soybean lecithin oil, glycine betaine, hydrocolloid, a water-retaining agent, a preservative, chitosan, and a digestive enzyme. The preparation method for the fish food comprises: mixing and grinding the raw materials and ingredients, performing enzymolysis, heating, then adding the hydrocolloid, uniformly stirring, sealing after packaging, and performing sterilization.\nA: Disclosed are an  Osteoglossum bicirrhosum  feed and a preparation method therefor, wherein the  Osteoglossum bicirrhosum  feed comprises the following parts by weight: 10-20 parts of duck meat powder, 5-8 parts of coconut leaves, 15-20 parts of egg yolk, 3-5 parts of  Bacillus subtilis , 5-8 parts of lysozyme, 5-10 parts of calcium dihydrogenphosphate, 20-40 parts of kelp powder, 20-22 parts of asarum powder, 10-13 parts of shrimp meal, 5-8 parts of soybean meal, 4-7 parts of beer yeast, 4-6 parts of shrimp meal, 0.04-0.06 parts of cholate, 4-6 parts of fish oil, 8-16 parts of high protein flour, 0.01-0.03 parts of trace elements, 1-2 parts of minerals, 8-16 parts of corn starch, 2-3 parts of dehydrated spinach, 1-2 parts of soybean protein peptide, and 2-5 parts of natural allicin. The feed has the effects of relieving inflammation or internal heat, inducing diuresis and detoxifying, preventing pyretic toxicity of high temperatures, and increasing vitality. The feed can prevent the inflammation of wounds of fish, promote the healing of the wounds, and improve the disease resistance and vigour of fish.\nB: Disclosed are non-meat-derived yeast extracts having rich meat flavor, a preparation method therefor and use thereof in food. The preparation method for the yeast extracts comprises the following steps: mixing a yeast extract, vitamins, and an aqueous amino acid solution, and adding a reducing sugar as required; using a pH regulator to adjust the pH of the mixture to 4.0-8.0, and stirring the reaction at a temperature of 80-130 °C for 30-180 minutes to obtain a hot reactant; adding a vegetable oil to the described hot reactant, and adding edible salt as required to obtain a material to be dried; and vacuum drying and crushing the obtained material to be dried. On the basis of the preparation method, by designing different recipes and process conditions, yeast extracts having different rich meat flavor characteristics are obtained, thereby better meeting requirements in different food fields.\nC: Konjac granule preparation method and use thereof in a meal replacement powder, the method comprising: pulverizing an existing konjac powder through spin mixing, adding water, mixing evenly, swelling, drying, crushing, and sieving to obtain konjac granules. Upon dissolving the obtained konjac granules, the swelling time to achieve the same viscosity as an existing konjac powder is at least three times as long thereas. The dissolving is uniform and without clumping, and upon eating there is no stickiness. The invention markedly improves texture, solving the problems of an existing konjac powder having a short swelling time, readily clumping when dissolved, not facilitating preparation and having a poor texture. The konjac granules are used as a raw material, raw materials such as food ingredients and food additives are added there to and mixed therewith, followed by sterilization and packaging to produce a nutritionally balanced konjac meal replacement powder.\nD: A psoralen polymernanoparticle preparation and a preparation method therefor, relating to the technical field of polymernanoparticle preparations. The psoralen polymernanoparticle preparation with a high encapsulation efficiency is prepared by using a proper amount of psoralen, polylactide-glycolide, soybean phospholipid, and polyethylene glycol 1000 vitamin E succinate as raw materials, and in particular by using polyethylene glycol 1000 vitamin E succinate as a surfactant and soybean phospholipid as a lipid. By optimizing the preparation conditions of the psoralen polymernanoparticle preparation, the encapsulation efficiency of the psoralen polymernanoparticle preparation can be further improved. The encapsulation efficiency is up to 84.97%.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a feed composition, a preparation method therefor, and an application thereof in raising animals. The composition comprises a polyglycerol fatty acid ester having a pH value of 2.5-3.5. The fatty acid has 6-14 carbon atoms and is exemplified as laurel acid, caproic acid, caprylic acid, capric acid, or myristic acid. The number of polyglycerol molecules in the polyglycerol fatty acid ester is 1-5.\nA: Disclosed are a precursor compound of a hexahydro-beta-acid component compound, a feed composition and use thereof. A precursor compound of a hexahydro-beta-acid component compound having a structure represented by formula (I) or a solvate thereof and a feed-acceptable salt thereof, wherein R 1  is selected from substituted or unsubstituted C 1 -C 2  alkyl, and R 2  or R 3  is independently selected from H and substituted or unsubstituted linear or branched C 2 -C 4  carbonyl. In the present invention, it is found that fatty acid esterified precursor compounds of the hexahydro-beta-acid component compound have good stability under high temperature conditions, and overcome the problem of degradation of active ingredients caused by high temperature granulation of the hexahydro-beta-acid component compound during feed processing. Further, in the present invention, it is also found that hexahydro-beta-acid component compound propionate or butyrate and a feed-acceptable salt or solvate thereof among the fatty acid esterified precursor compounds of the hexahydro-beta-acid component compound can withstand a high temperature process of feed processing, and also have an effect substantially equivalent to the effect of the hexahydro-beta-acid component compound in breeding use.\nB: Disclosed are a pharmaceutical composition comprising a polymyxin synergist and the use thereof. The oxygen-containing hydrocarbon derivative containing 4 to 18 carbon atoms includes a fatty alcohol, a fatty acid and a fatty acid glyceride and serves as a polymyxin synergist, in particular as a synergist for a strain sensitive to the polymyxin inhibiting effect and as a drug-resistance reversal agent for polymyxin. Also disclosed is a pharmaceutical composition of the polymyxin synergist. The pharmaceutical composition is further used for preparing a drug and an animal feed additive for the treatment of a disease caused by polymyxin-sensitive bacterial infection or drug-resistant bacterial infection, and provides a more effective application space for the use of polymyxin, and is of great importance in application in the fields of pharmaceutics and animal breeding.\nC: Disclosed are a non-dairy cream for baking and the preparation method thereof, same being made of the following raw materials in percentages by weight: 28-40% of plant fats, 0.02-0.5% of lecithin, 0.02-2% of salt, 0.02-0.5% of diacetyl tartaric acid mono-(bis-)glycerides, 0.05-0.1% of mono- and bis-glycerol fatty acid esters, 0-0.2% of sucrose fatty acid esters, 0-0.5% of polyglycerol esters, 2-5% of sweet whey powder, 0.05-1% of denatured cellulose, 0.1-2.5% of sodium caseinate, 0-0.5% of sodium stearyl lactylate, 0-0.5% of lactic acid glycerin fatty acid ester, 0-0.3% of sodium alginate, 0.002-0.2% of sodium erythorbate, 3-6% of sugar, 3-6% of glucose syrup and 10-18% of high fructose corn syrup, the balance being water.\nD: A non-hydrogenated mixed butterfat and non-dairy cream, and a preparation method therefor. The cream is made from the following ingredients in percentage by weight: non-hydrogenated vegetable oil: 8％-18％; sorbitan monostearate: 0.05％-0.5％; citric and fatty acid esters of glycerol: 0.02％-0.5％; mono- and di-glycerides of fatty acids: 0.05％-1％; lactic acid esters of monoglyceride: 0.02％-1％; sodium stearoyl lactylate: 0.02％-0.5％; sucrose fatty acid ester: 0.05％-0.5％; polyglycerol ester: 0.02％-0.5％; carrageenan: 0.01％-0.1％; microcrystalline cellulose: 0.05％-0.8％; modified cellulose: 0.05％-1％; sodium caseinate: 0.1％-1.5％; potassium dihydrogen phosphate: 0.02％-0.2％; sugar: 2％-6％; glucose syrup: 2％-12％; butterfat containing dairy product: 8％-18％; and water: 20％-60％. The preparation method comprises: preparing an oil phase mixture and an aqueous phase mixture, adding the aqueous phase to the oil phase, stirring uniformly, pasteurizing, homogenizing, stirring, bottling, and freezing and preserving.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are an edible bird's nest product and preparation method thereof, comprising the following processing steps: pretreating an edible bird's nest; stewing with water, and simultaneously performing a crushing process; performing a low-temperature concentration; shaping; performing a low-temperature drying process; and obtaining an instant brewable bird's nest product.\nA: Disclosed is a recombinant highland barley powder, comprising highland barley powder, black sesame, other cereal flours and food additives, wherein the mass percentage of each component is: 50%-70% of highland barley powder, 5%-15% of black sesame, 23%-35% of other cereal flours, and 7%-15% of food additives, the food additives being gum arabic and mogroside. Also involved is the use of the recombinant highland barley powder in the preparation of highland barley products in the food field. Further involved is a method for preparing a low GI recombinant highland barley granule, the method comprising using the recombinant highland barley powder as a raw material, extruding the powder at low temperature and cutting the extruded powder and forming same, and then subjecting the powder to drying and cooling, wherein the low-temperature extrusion includes five temperature control sections, with the fifth section having a temperature of 55℃-70℃, and the temperature of the other sections successively decreasing by 10℃. Further involved are a recombinant highland barley granule prepared by this method and the use of the recombinant highland barley granule in making steamed buns, biscuits and flour-based products.\nB: A processing method for removing nitrite from bird's nest comprises: thoroughly purifying water with an active filter medium, and sufficiently immersing in the purified water and then air-drying bird's nest for three times.\nC: A Folium Apocyni Veneti extractive preparation method, comprising: cold-drying, grinding, sifting, and degreasing Folium Apocyni Veneti, to obtain a filter cake; drying the filter cake, adding the filter cake to absolute ethyl alcohol for ultrasonic extraction, and performing filtering to obtain an extract solution and residue; performing multi-stage countercurrent pulse extraction on the residue to obtain an extract liquor; after mixing the extract liquor and the extract solution, treating the mixture with a macroporous absorption resin, and then performing eluting by using water and ethyl alcohol in sequence, concentrating, and drying, to obtain a Folium Apocyni Veneti extractive. Specific operations of the multi-stage countercurrent pulse extraction comprises the following steps: conveying the residue into an extractor, and performing N-stage spraying and soaking extraction on the residue by using an extracting agent of the Folium Apocyni Veneti extractive, to obtain the extract liquor and residual dregs; and the mass fraction of the Folium Apocyni Veneti extractive in an extracting agent used in the M th  stage is higher than the mass fraction of the Folium Apocyni Veneti extractive in an extracting agent used in the (M-1) th  stage, where 2≤M≤N. The method features a high extraction speed, high extraction precision, and low production costs, and reduces the energy consumption.\nD: A fritillary flower extractive preparation method, comprising the following steps: cold-drying, grinding, sifting, and degreasing fritillary flowers, to obtain a filter cake; drying the filter cake, adding the filter cake to absolute ethyl alcohol for ultrasonic extraction, and performing filtering to obtain an extract solution and residue; performing supercritical carbon dioxide extraction on the residue to obtain an extract liquor, using ethanol water as entrainer; after mixing the extract liquor and the extracting solution, treating the mixture with a macroporous absorption resin, and then performing eluting by using water and ethyl alcohol in sequence, concentrating, and drying, to obtain a fritillary flower extractive. During the supercritical extraction, the extraction temperature is 52-55°C, the temperature of the first separation is 45-50°C, the temperature of the second separation is 35-40°C, the extraction pressure is 30-33 MPa, the flow rate of carbon dioxide is 10-20 L/h, the frequency of receiving a product is 45-50 min per time, and the extraction time is 3-4 h. The method features a high extraction speed, high extraction precision, and low production costs.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a dual-drive type membrane hole-opening and seeding device and method. The dual-drive type membrane hole-opening and seeding device comprises a rack (2), and a first suspension, a disc and a second suspension which are sequentially arranged on the rack (2), wherein the disc is rotatably mounted on the rack (2), a hole-opening mechanism is provided along a circumferential edge of the disc in a matching manner, a hole-opening cam (3-7) and a seed metering device (6-2) which match the hole-opening mechanism are mounted on the rack (2), and the disc and the seed metering device (6-2) are each fitted with a driving mechanism; and when the hole-opening mechanism rotates around an axis of the disc to a position matching the hole-opening cam (3-7), the hole-opening mechanism is opened towards a side away from an end face of the disc to form a seed feeding port in communication with a seed feeding cavity in the hole-opening mechanism, and the disc can be driven to achieve active transverse hole opening at different rotation speeds.\nA: Disclosed is a vertical soil-entering perforating device for pot seedling transplanting. The vertical soil-entering perforating device for pot seedling transplanting comprises a rack (1), and a vertical perforating mechanism (2), side plates (3) and a side plate reciprocating driving mechanism which are mounted on the rack (1), wherein the side plates (3) are slidably connected to two sides of the rack (1), the vertical perforating mechanism (2) is mounted on the side plates (3), and an execution end of the side plate reciprocating driving mechanism is connected to the side plates (3) so as to drive the vertical perforating mechanism (2) to perform static movement relative to the ground. Further disclosed is a perforating method. Vertical soil entering and exiting of the perforating mechanism can be guaranteed by means of the vertical soil-entering perforating device, soil sampling-type hole-forming operation is used, and disturbance to the soil around a hole can be reduced while the outline size of the hole is guaranteed to be stable, thereby improving the pot seedling transplanting quality.\nB: Disclosed is a machining device for machining a plier jaw on a plier workpiece (7). The plier workpiece comprises a plier mouth (71), a plier jaw (72) and a handle (73) which are connected in sequence. The machining device comprises a base (1), a disc (2), a first drive device (3) used for driving the intermittent rotation of the disc, a clamp (4) arranged on the disc and used for clamping the plier jaw, and a plurality of machining mechanisms arranged on the base. The connecting line between the centre of the plier jaw and the clamping centre of the clamp is arranged in the vertical direction. The machining mechanisms comprise a first machining mechanism (5) used for drilling the plier jaw and a second machining mechanism (6) used for milling the upper surface of the plier jaw. The first machining mechanism comprises a drill bit (52) used for drilling. When the disc stops, the clamping centre of the clamp below the first machining mechanism coincides with the vertical projection of the drill bit on the horizontal plane. The first machining mechanism in the device is used for directly drilling the plier jaw without location alignment, saving on manual work and improving machining efficiency. The machining device can machine multiple plier workpieces at the same time, further improving the machining efficiency.\nC: An electronic device for automatic acupoint selection and acupoint stimulation adopting Midnight-Noon Cycle of Qi. Inside the main body housing (5) of the device, a circuit board is connected to a microcomputer (4) and a treatment head (3), respectively. The circuit board has a function processing circuit connected to a communication circuit, a treatment head drive circuit, and a feedback circuit, respectively. The communication circuit is connected to the microcomputer. The treatment head drive circuit is connected to an electromagnetic coil. The feedback circuit is connected to the function processing circuit and the treatment head drive circuit. An hour stem and time comparison table, a time zone offset comparison table, a day stem table, and a day stem, hour stem, and acupoint comparison table are stored in a memory. The process of acupoint selection is as follows: inputting Y (year parameter), M (month parameter), d (day parameter), and C (century parameter), calculating an median to find a day stem, inputting time and a time zone to find an hour stem, and finding and displaying an acupoint. The present invention solves the problem in the existing use of Midnight-Noon Cycle of Qi of manual calculation of acupoint selection leading to inaccurate acupoint stimulation and pain resulting therefrom.\nD: Provided is a precise positioning mechanism for a workstation disc; said workstation disc (1) is linked with a driving mechanism (2) by means of a speed reduction mechanism; the workstation disc (1) is fixed on a work platform (13); a fixing plate (3) is provided on the work platform (13); the fixing plate (3) is located on the outer side of the workstation disc (1) in the circumferential direction; the fixing plate (3) and the workstation disc (1) are provided with a positioning groove (10) and a positioning member (4) which are fitted to each other; the positioning member (4) comprises a fixing block (41); the fixing block (41) has an accommodating groove (42); the accommodating groove (42) is provided with a compression spring and a positioning protrusion (43); one end of the positioning protrusion (43) extends under the action of the compression spring so as to be located outside the fixing block (41); the workstation disc (1) rotates so that the positioning protrusion (43) of the positioning member (4) enters the positioning groove (10) or the positioning protrusion (43) is separated from the positioning groove (10). The mechanism can prevent the workstation disc (1) from rotating excessively or not rotating fully into place, and the positioning of a workpiece on the workstation disc (1) is more accurate.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA dendrobium preservation method: using a two-way stretching polypropylene film to seal dendrobium, wherein a packaging bag formed by using said two-way stretching polypropylene film is provided with certain air permeability; packaging by using such a material may build an environment having low oxygen and high carbon dioxide, inhibit a respiratory effect of the dendrobium, and, when combined with a low temperature storage environment, may effectively delay aging. In addition, storing dendrobium in a refrigerated environment of 0°-5° may slow the dendrobium becoming mildewy, prolong the storage time of the dendrobium, and maintain the commercial and nutritional value of the dendrobium.\nA: The present invention relates to a dendrobium officinale oligosaccharide and a derivative thereof, and preparation methods therefor and applications thereof. The main technologies are: the dendrobium officinale oligosaccharide contains 3-9 glycoside residues and has a glucose residue at a non-reducing end, and the derivative thereof is obtained by substituting hydrophobic residues at the non-reducing end. Also provided are preparation methods and applications of the dendrobium officinale oligosaccharide and the derivative thereof. The beneficial effects of the present invention are: the dendrobium officinale oligosaccharides having a purity of 99% or more is prepared from dendrobium officinale for the first time; the structure, anti-aging effect, and immunoregulation effect of the dendrobium officinale oligosaccharide are defined; and the dendrobium officinale oligosaccharide can well inhibit the collagen protease and also has certain activity on TNF-α and IL-6. The present application can be used in the fields of medicine, food, and daily necessities development.\nB: Disclosed is a method for retaining the freshness of medicinal materials, the method comprising the following steps: the harvested fresh medicinal materials are sorted, comprising the shearing and cleaning of the fresh medicinal materials; after the fresh medicinal materials are sterilized, same are air-dried; the fresh medicinal materials are put in contact with a preservative, and are air-dried; and the fresh medicinal materials are packaged with packaging materials. A PBAT/PLLA composite breathable film can properly prevent the loss of moisture of the fresh medicinal materials, and effectively block out contamination from the external environment. The total number of bacterial colonies, mold colonies and Escherichia coli of the medicinal materials preserved by the method, when the microbial test experiment lasts one month, is under the national standard, can properly inhibit growth of the bacterium, etc., and the fresh medicinal materials have good appearance characteristics and stay in a fresh state, and small packages of fresh slices required by clinics are obtained.\nC: Disclosed is a Dendrobium-planting concrete column (1), comprising an above-ground section (11) and an underground section (12). The above-ground section comprises a groove (13) encircling the column, wherein the groove is used to plant the Dendrobium seedling. Also disclosed is a planting system, comprising the concrete column, a sunshade net (2) above the concrete column and a micro jet device (4). The concrete column decreases the planting cost, and raises the product quality of the Dendrobium. Also disclosed is a corresponding Dendrobium planting method.\nD: Involved are a fluorescence PCR detection kit for identifying Dendrobium officinale Kimura et Migo and the use thereof. The kit comprises specific primers and a specific probe for Dendrobium officinale Kimura et Migo, and the nucleotide sequences thereof are as shown in SEQ ID NOs. 1-3. The nucleotide sequences of the dendrobium universal primers and universal probe are as shown in SEQ ID NOs. 4-6. Carrying out PCR amplification by using the fluorescence PCR detection kit can identify Dendrobium officinale Kimura et Migo and other dendrobium plants. The kit pairs the specific fluorescence probe and the template, has a high specificity and selectivity, and has a high amplification efficiency, sensitivity and accuracy, good reproducibility, and short detection cycle. The detection can be completed within 1.5 hours. The kit can detect the DNA amplification reaction in real time, and has very high feasibility and application prospects, ensuring the place of real Dendrobium officinale Kimura et Migo in the market of traditional Chinese medicine.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA chopper assembly, comprising a straw discharge channel and a straw inlet and straw discharge port (10p) that are located at both ends of the straw discharge channel; a movable cutter roller (1r), which is disposed inside of the straw discharge channel; a plurality of movable blades (2r), which are distributed in a spiral arrangement and are detachably mounted on the movable cutter roller (1r), each of the movable blades (2r) being parallel to the cross section of the movable cutter roller (1r); a fixed cutter holder (3r), which is provided inside of the straw discharge channel on the side of the movable cutter roller (1r) proximal to the straw inlet; a plurality of fixed blades (4r), which are disposed on the fixed cutter base (3r) at equal intervals in the same direction; and a scattering structure, which is disposed on the straw discharge port (10p) and is suited to evenly scattering crushed straw. When the movable cutter roller (1r) is driven to rotate to any position, it can be ensured that all of the movable blades (2R) are able to pass through the gaps between the fixed blades (4r), that is, a cutting state can consistently be maintained between the movable blades (2r) and the fixed blades (4r), and the chopping efficiency is improved under the usual rotational speed of the movable cutter roller (1r), thus reducing the power output costs due to increasing rotational speed. Meanwhile, straw can be prevented, by means of the scattering structure, from accumulating in farmland.\nA: A fiber-grinding machine comprising a machine frame (1), and, fixed to the front and back ends of said frame (1) respectively, an electric motor (2) and a machine body (3); a shaft (4), which rotates to the left and to the right, is provided in the middle of said machine body (3); axially fixed to said shaft (4) are a plurality of moving-blade rings (5); multiple rows of strip-shaped moving blades (51) are circumferentially fixed to each of said moving-blade wheels; multiple rows of fixed blades (61) are fixed to a fixed-blade block (6); each row of said moving blades (51) comprises left moving blades and right moving blades (511, 512) provided to the left and to the right relative to one another; the right ends of said left moving blades (511) and the left ends of said right moving blades (512) are tangentially offset in opposite directions relative to one another; adjacent rows of left and right moving blades (511, 512) are offset in opposite directions relative to one another; the distance between the bottom end of said moving blades and a sandwich mesh (7) is 3-5 cm. The present fiber-grinding machine, by increasing the number of fixed blades and adjusting the cutting angle of the fixed blades and moving blades, substantially increases yields as well as product fineness; the addition of a fixed-blade connection plate to the fixed-blade block forms a joint fastening having a safer, more secure hold and reduced safety risks.\nB: Disclosed is an adjustable moving blade thread-trimming mechanism of a short-thread-end roller-feed sewing machine. The mechanism comprises a kettle shaft middle sleeve (1), a kettle shaft (2), a moving-blade holder (3), a moving blade (4), a fixed blade (5), a rotating shuttle (6) and a machine needle (7), wherein the kettle shaft (2) is installed in the kettle shaft middle sleeve (1); the moving-blade holder (3) is installed on the kettle shaft middle sleeve (1); the moving blade (4) is installed on one side of the moving-blade holder (3); the fixed blade (5) is arranged on one side of the moving blade (4); the rotating shuttle (6) is installed above the kettle shaft (2); and the machine needle (7) is arranged above the rotating shuttle (6). The moving blade and the moving-blade holder of the thread-trimming mechanism are of a split structure, such that machining is convenient, the machining cost is low, the machining precision is easier to guarantee, and the position of the moving blade can be adjusted at will according to requirements, so that installation and adjusting are convenient, thus, the optimal thread hooking and trimming effects are achieved; and when the rotating shuttle is worn, the moving blade can be adjusted, and it is then possible to continue using the rotating shuttle, such that the service life cycle of the rotating shuttle is prolonged, and user costs are reduced.\nC: An integrated device for crushing and vapor-steaming medical waste enables fast maintenance and repair and has a replaceable blade, and is a detachable vertical structure that is integrally assembled. The device is integrally formed as one piece by three parts: a loading and stirring compartment (1), a crushing compartment (2), and a sterilizing and unloading compartment (3). The crushing compartment is installed with a movable blade assembly and a stationary blade assembly therein. Maintenance gates (2-3) are disposed at two sides of the crushing compartment. The maintenance gate of a crushing machine and a bearing seat (2-9) of a movable blade shaft (2-2) of the movable blade assembly are designed as one piece, and a stationary blade (2-7) of the stationary blade assembly is pressed by a pressing plate (2-8) onto an inner wall of the crushing compartment, and screws for securing the pressing plate are installed outside in. To maintain or replace the blade of the crushing machine, the maintenance gate is detached such that the replacement process of a movable blade (2-6) of the movable blade assembly can be completed outside the crushing compartment; furthermore, the operator only needs to loosen the tightening screws of the pressing plate outside the crushing compartment and does not need to enter the machine to replace the stationary blade. The present invention addresses the problems in which the replacement of the blade of the crushing machine requires a hoisting device to hoist out the entire blade roller of the crushing machine, or requires the compartment to be removed, or requires the operator to enter the compartment, thus improving working efficiency and preventing the operator from entering a dangerous area.\nD: Disclosed is a lawn mower (100), comprising: a machine casing (1) provided with a cutting cavity and a grass discharge passage (15); a stop plate (41) which is mounted on the machine casing (1) and has a closing position for closing the grass discharge passage (15) and an opening position for opening the grass discharge passage (15) ; and a driving member (42), the driving member (42) being capable of driving the stop plate (41) to be switched between the opening position and the closing position, and when the driving member (42) is in linkage with the stop plate (41) to rotate to the opening position, the stop plate (41) being located outside the grass discharge passage (15).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method of cultivating a plant employing a small-quantity medium comprises: performing ground treatment; boring a hole in the ground; filling a medium in the hole; and sowing a seed or transplanting a seedling to cultivate a plant. After the hole has been bored, a plastic cloth or a seedling pot is provided inside the hole to hold the medium, such that the plant can be removed from the hole along with the medium later to obtain an independently-growing plant. Placing a medium in soil in a natural environment to cultivate a plant enables an environmental temperature of the soil to be effectively employed to perform cultivation, and ensures that the medium does not lose a large amount of water while completely isolating the plant from soil pests.\nA: A soilless culture medium for succulents, comprising the following raw materials by volume: 25%-50% of peat soil, 25%-40% of worm cast, 20%-35% of carbonized rice husk, and 5%-20% of honeycomb briquette slag. The medium has an appropriate material ratio, low costs, proper air porosity and water-holding capacity, large total porosity, and small bulk density, and is particularly suitable for cultivation of succulents. An economical and environment-friendly culture medium for succulents is obtained by reducing the amount of the peat soil in the medium. The medium can be used as an ideal soilless culture medium for succulents.\nB: Disclosed are a shallow and narrow riverway ecological management system based on an artificial ecological island and a construction method therefor. A plurality of artificial ecological islands are constructed in a riverway, a submerged plant planting blanket is laid on a riverbed of the riverway, and an aeration device is provided; wherein an island body of the artificial ecological island is an annular body that is hollow in the middle portion, water flow channels and supporting portions are arranged at intervals and in a staggered manner at the bottom of the annular body, and water flow is filtered and purified by means of a filter material matrix filled in the annular body; an aeration point is provided at the hollow position of the annular body, and air is pumped into a water body in the portion, so that the content of dissolved oxygen in the water body can be increased and the water quality can be improved; emergent plants and floating-leaved plants are planted on biological matrix soil layers at the upper half portion and the annular top of the annular body, and the submerged plant planting blanket on which submerged plants are cultivated is laid on the riverbed of the riverway, so that the aquatic plants can be used for further purifying the water body and beautifying the island body.\nC: A method for ecological configuration of the constructed wetland having oil production wastewater to achieve the standard operation in winter is to achieve the standard operation in winter by means of ecological configuration transformation of the subsurface flow constructed wetland and the surface flow constructed wetland when the constructed wetland is used for treating high-salt wastewater from oil production. The subsurface flow constructed wetland consists of a soil matrix, water pipes for conveying wastewater that is placed at the bottom of the soil matrix and wrapped with a permeable non-woven fabric, and reeds of which the root system grows on the inner side of the pipe wall, the stem grows on the outer side of the pipe wall, and the length is larger than the thickness of the soil matrix layer. The surface flow constructed wetland consists of a soil matrix, reeds growing on the matrix, water, aquatic plants which are salt-tolerant and cold weather-tolerant in winter, free-range fish, shrimps, crabs, sea rainbows, mussels, oysters or clams in blocks, and artificial sand dam. The method overcomes the shortcomings of the prior art, enables constructed wetland having high-salt wastewater from oil production to operate normally in winter, and has low costs and significant economic benefits.\nD: Disclosed is a method for remediating soil polluted with lead-polychlorinated biphenyl (Pb-PCBs) compounds, comprising: sterilizing Impatiens balsamina seeds with hydrogen peroxide and then spot-sowing in a seedling raising pot, transplanting into soil polluted with Pb and PCBs when the seeds have germinated and the young seedlings have grown to 5-8 cm, watering periodically to maintain an appropriate humidity, harvesting whole plants after growing for 120 days and handling properly, thereby completing a remediation cycle. The above operations are repeated until the content of Pb-PCBs in the soil is reduced to environmental safety standards. The present invention has the advantages of: Impatiens balsamina has strong adaptability and resistance to the cold and infertility, and seeds which are scattered on the ground can grow by themselves under appropriate humidity and heat conditions and can grow rapidly, facilitating cultivation and management; and compared to conventional polluted soil remediation methods, the remediation of soil polluted with Pb/PCBs compounds using the tolerant flower plant Impatiens balsamina has the characteristics of less investment, a low engineering workload, low technical requirements and no secondary pollution and the like, and the environment is beautified while the polluted soil is remediated.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is an agricultural insecticide device comprising a connecting rod (1), a hydraulic rod (2), a hydraulic pump (3), a power converter (4), a main controller (5), a storage battery (6), a lift key (7), a signal sensor (8), a drive wheel (9), a solar panel (10), a photometric sensor (11), a shade plate (12), a trap lamp (13), a high voltage grid (14), an insect receiving plate (15), a lampshade (16) and a column (17). The trap lamp (13) is arranged on one side of the column (17), and is connected to the column (17) through the connecting rod (1). The lampshade (16) is arranged on the trap lamp (13) and the high-voltage power grid (14) is arranged on the lampshade (16). The insect receiving plate (15) is arranged at the lower end of the lampshade (16). The shade plate (12) is arranged at an upper end of the trap lamp (13). The storage battery (6) and the main controller (5) are arranged in the column (17). The photometric sensor (11) is arranged on the connecting rod (1), and is connected to the main controller (5). The main controller (5) is connected to the storage battery (6), and the storage battery (6) is connected to the trap lamp (13). When the photometric sensor (11) senses the darkening of the sky, this information is transmitted to the main controller (5), which controls the storage battery (6) to turn on the trap lamp (13) so as to initiate trapping insects, which reduces labor intensity.\nA: Disclosed in the present invention is an intelligent theft-proof solar energy insect killer comprises a base, a bracket, a lamp bracket, a light wave resonance insect trap lamp, an insect collector, a power control box and a solar energy collecting plate. The base is mounted with a door magnetic detector. The power control box and the solar energy collecting plate are fixed on the bracket through a dismantling-proof screw. A control circuit board and a storage battery are mounted in the power control box. An automatic camera and a human body scanner are installed on the front cover of the power control box. The solar energy collecting plate, the storage battery, the door magnetic detector and an intelligent alarm are electrically connected with control circuit board respectively. The control circuit board is provided with a CPU and an RS232 data interface connected with an alarm main machine. Since the intelligent theft-proof solar energy insect killer is mounted with the dismantling-proof screw, the door magnetic detector, the automatic camera, the human body scanner and an RS232 data interface, it can guarantee safety, enhance theft-proof effect of the killer and can also be used for an alarm machine to monitor and collect evidence.\nB: A smart sanitation rubbish bin, an inner bin (11) being arranged inside the bin body (4), a cover (2) being arranged at the upper end of the bin body, the cover being hinged onto the bin body, a tempered glass layer (7) being arranged on the bin body, an LED light group (5) and an acousto-optic sensor (6) being arranged in the tempered glass layer, a main controller (9) and a storage battery group (8) being arranged between the bin body and the inner bin, the acousto-optic sensor being connected to the main controller, the main controller being connected to the storage battery group, and the storage battery group being connected to the LED light group. When sensing information, the acousto-optic sensor in the tempered glass layer conveys said information to the main controller, and the main controller controls the storage battery group to drive the LED light group to illuminate, facilitating people throwing rubbish into the rubbish bin, protecting the environment, and reducing the workload of sanitation workers.\nC: A seed soaking apparatus, comprising: a hot water tank (9) installed at the right side of a seed soaking tank (14). A heating disc (10) is provided inside the hot water tank (9). The hot water tank (9) is connected to an inlet hole (6) by a hot water pipe (5). A hot water pump (8) is installed on the hot water pipe (5). A support (23) is provided at the bottom end of the seed soaking tank (14). A motor (7) is installed at the top end of the seed soaking tank (14) and connected to an axle (25). A mixing blade (26) is provided on the axle (25). A main control panel (18) having therein a main controller (16) is provided on the seed soaking tank (14). A temperature sensor (20) is provided in the seed soaking tank (14) and is connected to the master controller (16), and the master controller (16) is linked to the water pump (8). The temperature in the seed soaking tank (14) is measured by the temperature sensor (20). When the temperature is too high, information thereof is transmitted to the main controller (16), and the main controller (16) controls the pumping by the hot water pump (8) of hot water from the hot water tank (9) into the seed soaking tank (14), ensuring the effectiveness of seed soaking.\nD: A pressure tank having high safety performance, an electric motor (6) being provided at the upper end of a tank body (3), a rotary shaft (7) being provided in the tank body (3), a stirring device (8) being provided on the rotary shaft (7), brackets (11) being provided at the lower end of the tank body (3), a water inlet (10) being provided on one side of the tank body (3), a water outlet (14) being provided on the other side of the tank body (3), a sewage outlet (12) being provided at the lower end of the tank body (3), a water discharge controller (13) being provided at the water outlet (14), a balance sensor (9) being provided in the tank body (3), a main controller (15) being provided on the tank body (3), the balance sensor (9) being connected to the main controller (15), and the main controller (15) being connected to the water discharge controller (13). When the tank body (3) is collided, the balance sensor (9) in the tank body (3) senses a signal of losing balance and will pass the information to the main controller (15), and the main controller (15) will control the water discharge controller (13) to discharge water so as to reduce the pressure in the tank body (3).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an automatic biological sample library (10), comprising a framework (100), an upper computer (140), a control system, a liquid nitrogen tank (200), a heat preservation chamber (300), a transfer container (400), a rotary disk rotating module (500), a basket lifting module (510), a shovel disk module (520), a tube picking module (530) and a transfer module (540), wherein the rotary disk rotating module, the basket lifting module, the shovel disk module, the tube picking module and the transfer module are electrically connected to the control system. The automatic biological sample library comprises the upper computer and the control system; operation of the rotary disk rotating module, the basket lifting module, the shovel disk module, the tube picking module and the transfer module can be automatically controlled, such that automatic storage and extraction of biological samples are achieved; human interference is reduced; the safety, reliability and convenience of storage and taking are improved; and automatic data management, data sharing and data analysis of biological sample information are realized.\nA: Disclosed is a laser pulse thawing system for automated non-contact biological samples, comprising: a main control module (1), a laser pulse generation subsystem (2), a sample identification subsystem (3) and a sample transmission subsystem (4). The main control module (1) is used for controlling the laser pulse generation subsystem (2), the sample identification subsystem (3) and the sample transmission subsystem (4) respectively and enabling a cooperative work among the laser pulse generation subsystem (2), the sample identification subsystem (3) and the sample transmission subsystem (4). The sample identification subsystem (3), the laser pulse generation subsystem (2) and the sample transmission subsystem (4) work cooperatively to complete rapid automated non-contact thawing and recording of the samples; and the new technology of laser thawing is applied to actual production, the whole process from sample removal to thawing recovery can be automatically completed to make the process control precise and improve the working efficiency.\nB: A capacitor automated production control system and a production method. The system is applied to a capacitor production device, and comprises: a glue filling control module (11) for acquiring a glue filling parameter, receiving glue filling state data sent by a glue filling apparatus (21), and displaying the glue filling parameter and the glue filling state data; an impregnation control module (12) for acquiring an impregnation parameter, receiving impregnation state data sent by an impregnation apparatus (22), and displaying the impregnation parameter and the impregnation state data; an encapsulation control module (13) for acquiring an encapsulation parameter, receiving encapsulation state data sent by an encapsulation apparatus (23), and displaying the encapsulation parameter and the encapsulation state data; and a main control module (10) for determining a production control instruction according to the glue filling parameter, the impregnation parameter and the encapsulation parameter, and controlling, according to the production control instruction, the glue filling apparatus (21), the impregnation apparatus (22) and the encapsulation apparatus (23) to perform automated glue filling, impregnation, encapsulation and periodical quality testing. The system and production method realize fully automated production throughout the production process, thereby improving production efficiency and reducing production costs.\nC: Provided is a biological sample repository comprising a repository box body (1), multiple cryopreservation tanks (2) and an automatic transfer mechanism (3), wherein at least one of the cryopreservation tanks (2) and the automatic transfer mechanism (3) are both arranged in the repository box body (1); a delivery window (101) is provided in the repository box body (1); and the automatic transfer mechanism (3) receives a transit tank (4) that stores a freezing tube and is delivered from the outside through the delivery window (101), and the automatic transfer mechanism (3) transfers the freezing tube in the received transit tank (4) into the cryopreservation tank (2). The biological sample repository solves the problem in the prior art that biological sample repositories cannot ensure whole cold-chain protection, thereby increasing the damage risk in storage of biological samples, and also solves the problem in the prior art that cryopreservation tanks are very inconvenient to transport. Further provided is a storage method for a biological sample repository.\nD: Disclosed are an automatic production control system and production control method for a capacitor element. The system is applied to a nailing and winding machine. The nailing and winding machine comprises a nailing apparatus for nailing a guide pin onto a chaff, and a winding apparatus for performing winding processing on the chaff after nailing. The system comprises: a nailing control module for acquiring a nailing parameter and receiving nailing state data sent by the nailing apparatus; a winding control module for acquiring a winding parameter and receiving winding state data sent by the winding apparatus; and a master control module for determining a production control instruction according to one or more of the nailing parameter, the winding parameter, the nailing state data and/or the winding state data, and controlling, according to the production control instruction, the nailing apparatus and/or the winding apparatus to perform an automatic nailing operation, a winding operation and a quality inspection operation. According to the present invention, the automatic production of a capacitor element is realized, thereby improving the production efficiency and improving the quality of the produced capacitor element.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA food production line comprises: a rolling mechanism (101), comprising at least one pair of rollers (1011); and a cooling circulatory system (102). The cooling circulatory system is used for providing a coolant to at least part of the rolls, so as to cool the rolls during the rolling process of the rolls. Also disclosed is a food processing method using the food production line. By means of the food production line, the temperatures of the surfaces of the rolls keep low, the temperatures generated in the frictions between the rolls and semi-finished materials during the rolling are reduced, and in this way, the semi-finished materials are kept in a low-temperature state, so as to inhibit the survival and the growth of bacteria and putrefactive microorganisms, thereby effectively prolonging the freshness keeping period and the quality guarantee period.\nA: Provided are a method and system for monitoring a food-product processing period, said method comprising the following steps: obtaining the type and product-entry date of a to-be-processed food product (101); according to the type of the to-be-processed food product, obtaining a shelf life of the to-be-processed food product from a preset food-product processing information database (102); according to the product-entry date and the shelf life, generating a processing date of the to-be-processed food product (103); according to the processing date, monitoring the process of processing the to-be-processed food product, and according to the result of monitoring, sending a monitoring message to a preset receiving terminal (104). In the method and system for monitoring a food-product processing period, fully automatic monitoring of a food product from the time the food product enters a factory is achieved, and workers are promptly reminded to process food products which have reached their processing dates; the problem, when dealing with vegetables and other food products having short shelf lives, of it being difficult to control the processing time of the food products when large volumes of products are entering a factory is effectively solved; the expiration and deterioration of food products is effectively prevented, reducing the losses of a food processing plant.\nB: A 3D food printer, comprising: a spray head component (10) for spraying a food raw material; a cooling component (20) for keeping the food raw material at a low temperature at which the food raw material does not melt or coagulate; a conveying component (30) for automatically outputting a printed food product; a printer body (40) for bearing the entire 3D food printer; a drive component for driving the 3D food printer to move in X, Y, and Z directions; and a control component for controlling the operation of the entire 3D food printer. The 3D food printer provided with a cooling system and having an increased size can store and supply a large quantity of food raw materials, and can print normally at a relatively high ambient temperature. The 3D food printer is provided with an automatic conveying system for printed products, and can automatically output the food products after printing and continue to print follow-on food products. Food can be produced continuously. The 3D food printer is easy to operate, highly effective, and can better comply with the food hygiene requirements.\nC: Disclosed is a continuous roll without pressing force deviation using atmospheric pressure as pressing power, comprising at least four rolls (1), wherein the four rolls (1) form a square arrangement, two ends of the rolls (1) are respectively provided with a sealing guard plate (6), a sealed cavity is formed between the rolls (1) and the sealing guard plates (6), and the sealing guard plates (6) on at least one side are provided with an air extraction port (10). A main water trough (3) is provided below the rolls (1). A vacuum sealed cavity is formed between the four rolls (1) and the sealing guard plates (6) at the two ends. When a textile passes through the sealed cavity, air contained therein is extracted, such that when the textile comes into contact with water, the textile can be easily soaked in the water, and no surfactant is required. Costs are low, results are good, no pollution is caused, and continuous production and operation can be achieved.\nD: The present invention relates to the technical field of flour food processing equipment, and discloses a special calender roll for flour food products and a manufacturing method therefor. The calender roll is disposed symmetrically and comprises a first calender roll and a second calender roll, and the two calender rolls are of the same structure. The calender roll comprises two support shafts, and a cylindrical base body is provided between the two support shafts. The cylindrical base body of the calender roll is sleeved with a calender roll barrel, protrusions of a micro-spherical structure are prepared on the outer surface of the calender roll barrel, and the outer surface of the calender roll barrel is coated with a low-surface-energy chemical vapor deposition carbon-based doped film. The present invention also provides a manufacturing method for the special calender roll for flour food products. According to the calender roll manufactured using this manufacturing method, the contact angle between water droplets and the surface of the calender roll is improved by means of an element-doped film, the adhesive capacity of a noodle belt on the surface of the calender roll is thus reduced, and the amount of water added for producing noodle by machine can be greatly increased.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stuffed food forming method, comprising a first step: feeding and cutting a wrapper, wherein a forming mold (1001) on a turntable is located below a wrapper feeding and cutting station (20), and after a dumpling wrapper is cut into a wrapper of a designated shape, the same falls onto the forming mold below, and a cut residual wrapper enters an opening (106) on the turntable and is conveyed downwards, achieving the recycling of residual wrappers; a second step: stuffing injection, wherein the turntable drives the forming mold that has received the wrapper to rotate to a stuffing filling station (30), stuffing being injected into the wrapper. The stuffed food forming method implements the recycling of residual wrappers on the basis of an existing structure by means of providing an opening structure, which is used for recycling cut residual wrappers, on the turntable assembly, thus fully using the space below the turntable assembly, while the residual wrappers may be directly stored or reused after processing by means of providing a recycling bin or a residual wrapper processing mechanism below the opening structure. In addition, the foregoing structure does not increase the area occupied by the whole device, solving the problem wherein the whole device cannot be further reduced in size due to residual wrapper processing requiring extra space.\nA: A pull-tab rivet forming method comprises the following three steps: step 1, performing a pressing operation on a material belt (9) to form a crown-shaped spherical portion (10); step 2, continuing to perform a pressing operation on the spherical portion to form a hemispherical portion (11); and step 3, performing a reverse drawing operation on the hemispherical portion to form a cylindrical rivet (12). Also provided is a pull-tab rivet forming mold comprising an upper mold half (1) and a lower mold half (2). Three working positions spaced at equal intervals are arranged at the forming mold. The first working position is a spherical portion pressing working position. The second working position is a hemispherical portion pressing working position. The third working position is a rivet reverse drawing working position. The above forming method and mold divide a rivet forming process into three steps. A crown-shaped spherical portion and a hemispherical portion are sequentially formed in two steps, and then the hemispherical portion is reversely drawn to form a rivet, thereby ensuring a certain height of the drawn rivet, providing a formed rivet of high quality, and preventing occurrence of cracks and paint peel on a rivet surface.\nB: A semi-finished food product angle adjustment method, fixing a fixing apparatus at a first work station (M1) position to a first corner of a wrapper (901), and driving the fixing apparatus by means of a motion driving assembly to move to a second work station (M2), thereby dragging the wrapper (901); in the process of dragging the wrapper (901), driving the fixing apparatus to rotate by means of a rotation driving assembly; also disclosed is a semi-finished food product angle adjustment mechanism used to implement the described angle adjustment method. The present semi-finished food product angle adjustment method and angle adjustment mechanism can adjust a rotation angle of a semi-finished food product, enabling a first corner of a wrapper to be rotated to an indicated angle, thereby facilitating subsequent processing steps; accuracy of wrapper rotation angle adjustment is high, and angle adjustment mechanism operation is stable, which can, as much as possible, prevent wrapper breakage, and prevent a filling of the wrapper from being thrown out.\nC: Disclosed is a disc rotary brick press, comprising a rotary disc and a plurality of molds disposed on the rotary disc; the brick press further comprises a controller, a rotary driving mechanism that drives the rotary disc, a material spreading mechanism that spreads out a raw material, a pre-pressing mechanism that performs pre-pressing on the raw material, a main pressing mechanism that performs main pressing on the raw material, a demolding mechanism that demolds a molded brick, a main shaft mechanism that is located at the center of the rotary disc, and a main carrying frame that carries the material spreading mechanism, the pre-pressing mechanism, the main pressing mechanism, and the demolding mechanism. After using the described structure, and in comparison to the prior art, the present invention uses a rotary driving mechanism to drive a rotary disc to carry out intermittent circumferential rotation and drives a mold on the rotary disc to sequentially pass through a raw material feeding device, a material spreading mechanism, a pre-pressing mechanism, a main pressing mechanism and a demolding mechanism, so as to complete the pressing and molding of a raw material, thus achieving the mechanical automatic production of a brick, and greatly improving the production efficiency and production.\nD: A multiple work position silicone piece multicolor molding machine, comprising a machine frame (10), a turntable (20), a first driving device, multiple second driving devices (30), multiple discharging nozzles (40), and a control device (50). Multiple work positions (21) are provided at intervals on the turntable (20). The first driving device drives the turntable (20) to rotate. The multiple discharging nozzles (40) are provided as vertically movable on the machine frame (10). The multiple discharging nozzles (40) are in a circumferential arrangement and arranged directly above the turntable (20). The multiple second driving devices (30) respectively drive the corresponding discharging nozzles (40) to move up and down. With the multiple color-forming discharging nozzles (40) provided on same machine frame (10), the turntable (20) provided below the discharging nozzles (40), the multiple work positions (21) provided on the turntable (20), and silicone strip molds placed on the work positions (21), when a silicone strip finishes with one color below the first discharging nozzle (40), the turntable (20) rotates to below another discharging nozzle (40), the silicone strip finishes the application of a second color and as such finishes the application of various colors, compared with the past in which one machine could only finish the application of one color, the molding machine can finish the application of various colors, thus increasing production efficiency and saving on footprint.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA sweetening liquid capable of preventing and relieving intestinal sugar alcohol intolerance. Every 100 ml of the sweetening liquid contains 0.01-0.04 g of a low-ester pectin, 0.01-0.1 g of κ-type carrageenan, 0.01-0.3 g of locust bean gum, 30-60 g of xylitol, 5-15 g of maltitol, 1-10 g of sorbitol, and the balance of water, wherein the low-ester pectin is a pectin concentrate, the pectin concentrate contains 15 parts by weight of calcium citrate, 60 parts by weight of a low-molecular-weight pectin, 85 parts by weight of ethylene glycol, 5 parts by weight of sodium carboxymethylcellulose, and 30 parts by weight of sodium citrate, and the low-molecular-weight pectin contains a low-sugar juice and a lemon juice; the pH value of the sweetening liquid is 5-6.5, and the viscosity is 0.1-25 mPa•S. The present invention also relates to a preparation method for the sweetening liquid and an application of the sweetening liquid. By means of the sweetening liquid, diarrhea caused by overeating of sugar alcohol can be reduced, and the safety and the practicability of sugar alcohol in product applications are improved.\nA: Provided is a micro-effervescent buccal tablet and preparation method thereof. The micro-effervescent buccal tablet comprises a nutrient, a sugar alcohol, an acid source, an alkali source, magnesium stearate, a flavour and a sweetening agent, wherein the sugar alcohol is lactose, maltitol, sorbitol, isomaltitol, mannitol, erythritol or any combination thereof; the sweetening agent is sucralose, aspartame, stevioside, fructose, sucrose, mogroside or any combination thereof. The micro-effervescent tablet may occur micro effervescence reaction under the action of saliva in mouth.\nB: Provided are a chewing gum, an e-liquid and a use thereof. The chewing gum contains 10-50 parts by weight of a sweetener, 5-20 parts by weight of a cooling agent and 15-85 parts by weight of propylene glycol, wherein the sweetener contains at least one of xylitol, maltose, stevioside, rhamnose, trehalose, erythritol, lactose, and galactose. The chewing gum can enter the mouth via various atomizers, such as an electronic cigarette, an ultrasonic atomizer, etc., and has the effects of cleaning the oral cavity and preventing dental caries when applied to electronic cigarettes.\nC: An enteral sustained-release sugar alcohol additive, comprising two layer structures. An inner layer structure comprises components of xylitol and agar, and an outer layer structure comprises components of carrageenan or gellan gum or xanthan gum or guar gum, vitamin B12, L-arabinose and fermented bifidobacterium or fermented propionibacterium or fermented lactobacillus. The enteral sustained-release sugar alcohol additive achieves the directional regulation of intestinal microorganisms, and achieves the high-concentration synthesis of propionate in intestines.\nD: An enteric coating material, a preparation method therefor, and an enteric product. The enteric coating material comprises an isolation layer coating material and an enteric outer layer coating material which are used for sequentially coating a material to be coated; and the isolation layer coating material comprises in parts by weight: 2-8 parts of shellac, 0.1-2 parts of hydroxypropyl methyl cellulose or sodium carboxymethyl cellulose, 0.1-2 parts of magnesium stearate, 1-10 parts of one or more among glycerol, propylene glycol, polyethylene glycol, sorbitol, triethyl citrate, mannitol, and isomaltitol, and 40-180 parts of 75 v/v%-85 v/v% ethanol. In the coating material, raw material costs are low and the preparation method is simple, and a coating product may satisfy the usage requirements of not disintegrating in simulated gastric juice for two hours and disintegrating in intestinal juice within one hour.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA thumbwheel shirring head (10), comprising a plurality of thumbwheels (5) evenly distributed around a shirring rod (11). Rotation axes of all the thumbwheels (5) are arranged in a common plane perpendicular to a casing feeding direction; the thumbwheels (5) are designed to be suitable for performing planetary rotation about an inner hole enclosed by the thumbwheels together while synchronously rotating about the rotation axes thereof toward the casing feeding direction; a plurality of thumbwheel teeth (13) is evenly distributed on the periphery of each thumbwheel (5); tooth top leading edges (18) of the thumbwheel teeth (13) of each thumbwheel (5) are designed to be suitable for being squeezed into a space of a casing so that the casing forms a thread line; a continuous thread line is formed when the tooth top leading edges (18) of the thumbwheel teeth (13) of every two adjacent thumbwheels (5) are connected; tooth fronts (16) of the thumbwheel teeth (13) of each thumbwheel (5) are inclined forward in the circumferential rotation direction of the thumbwheel. By means of the thumbwheel shirring head, the shirred casing is not easy to be loosened and disjointed, so that casing pipes can have better quality and are more uniform and tight.\nA: A multi-surface container steering device, comprising a support (2); a first shaft (3) that can rotate around the axial direction thereof and that is provided in the support (2); a thumbwheel (4) that is fixedly provided on the first shaft (3); a cam (5) that is fixedly provided on the support (2) and that is located below the thumbwheel (4); and a cam curve groove (6) that is provided on a side surface of the cam (5) facing the thumbwheel (4). The device further comprises a first connecting assembly that is fixedly connected to the thumbwheel (4) or the first shaft (3); a second shaft (7) that can rotate around the axial direction thereof and that penetrates the first connecting assembly; a second connecting assembly that is fixedly connected to one end of the second shaft (7) and that is used for carrying a multi-surface container (1) and also for abutting against at least one side surface of the multi-surface container (1); and a third connecting assembly that is fixedly connected to the other end of the second shaft (7) and that is partially located in the cam curve groove (6), the third connecting assembly being used for driving the second shaft (7) to rotate around the axial direction thereof under the action of the cam curve groove (6) along with the rotation of the second shaft (7) around the axial direction of the first shaft (3). Thus, the problem of orientation of the multi-surface container (1) before filling is effectively solved.\nB: A ray machine focus adjustment mechanism for a micro projector comprises a focusing lever (2) for adjusting the focus, a connector (3), a guide column (4) with the surface provided with outer threads, and a trackwheel (5) extending to the outside of the projector body and being located at a focusing mark. Inner threads fitting the outer threads on the surface of the guide column (4) to form a thread-screw transmission mechanism is disposed in the trackwheel (5). The connector comprises two hollow cylinders having axes perpendicular and orthogonal to each other. One of the hollow cylinders sleeves the focusing lever (2) and is fixedly connected to the focusing lever. The other hollow cylinder is fixedly connected to a part, without the outer threads, of the guide column (4) by insertion and gluing. Therefore, the focus of the gear-free ray machine only with an exposed lever is adjusted.\nC: Disclosed are a hand-clamping device for continuously sheathing and compressing sausage casings and an automatic sausage casing sheathing and compressing machine, comprising an air cylinder bottom plate (7). A B clamp base (6) and an air cylinder base (8) are arranged on a top portion of the air cylinder bottom plate (7). Gears (9) are installed on the B clamp base (6) via gear shafts (15). The gears (9) are further provided with a left rocker arm (12) and a right rocker arm (1). The left rocker arm (12) and the right rocker arm (1) are both provided with an air-replenishing clamp rotation pin (2) and an air-replenishing clamp limiting plate (10). The other sides of the left rocker arm (12) and the right rocker arm (1) are provided with a proximity switch base (4). Top portions of the left rocker arm (12) and the right rocker arm (1) are provided with a first clamping sheet (22) and a second clamping sheet (24). In the hand-clamping device for continuously sheathing and compressing sausage casings and the automatic sausage casing sheathing and compressing machine, when an air cylinder (5) pushes the left and right rocker arms to be closed by means of a Y-shaped connector (3), an air-replenishing clamp arm (13) is driven to be closed, a groove exactly aligns with a circle of vent holes on a side wall of a piston valve, such that a sheathing and compressing rod is inflated without air leakage, thereby guaranteeing the stability of sausage casing inner air pressure; and the sheathing and compressing rod is firmly clamped, a piston side wall is annularly sealed, and a circle of small holes on the piston side wall are inflated without air leakage.\nD: A dial wheel adjustment mechanism (20), a remote controller (30) and an unmanned aerial vehicle, the dial wheel adjustment mechanism (20) comprising: a base (11), at least one reset rotor (12), an elastic reset member (13) and a dial wheel assembly (14). The base (11) is provided thereon with a mounting post (111) and a limiting post (112), the reset rotor (12) and the dial wheel assembly (14) being rotatingly disposed on the mounting post (111). The dial wheel assembly (14) is provided with at least one transmission portion (143); the transmission portion (143) is used for driving the reset rotor (12) to rotate when the dial wheel assembly (14) bears an external force and rotates; the elastic reset member (13) is used for causing the reset rotor (12) to drive the dial wheel assembly (14) to reset after the external force is removed. In a natural state in which no external force is applied, the distance from the limiting post (112) and the transmission portion (143) to the reset rotor (12) on the circumferential direction of the mounting post (111) is not greater than a preset distance. By means of said structure, when the reset rotor (12) is in a reset position, the free rotation margin of the dial wheel assembly (14) is controlled to be within an allowable range, thus increasing the accuracy of adjustment of the dial wheel assembly (14). Further, when applied in a remote controller of an unmanned aerial vehicle, the accuracy in angle adjustment of a cradle head is increased.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA mobile controlled atmosphere container for fruit and vegetables, comprising a container body (1) having a rectangular cabinet structure, the container body (1) being sequentially provided with an equipment chamber (3) and a storage chamber (2) in the length direction thereof; equipment doors (5) are respectively provided at the left side and the right side of the equipment chamber (3); the storage chamber (2) has a thermal-insulation and sealed structure, the end of the storage chamber away from the equipment chamber (3) is provided with a sealing door (4), and one side of the storage chamber (2) is provided with a sampling door (6); a sealing film (8) connected around the frame of the sampling door (6) and a sampling assembly (7) connected to the sealing film (8) are provided in the storage chamber (2) at a position corresponding to the sampling door (6), the sealing film (8) having a cylindrical structure; said mobile controlled atmosphere container further comprises a controlled atmosphere control system comprising a control panel, and a refrigerator, a humidifier, a sterilization device, a nitrogen generator, a carbon dioxide removal device, an ethylene removal device, a temperature and humidity sensor, and a gas concentration sensing device which are connected to the control panel.\nA: A fully automatic intelligent pH value detection device, comprising a reaction kettle (2) and a detector (3), wherein a first mechanical arm (7) can grasp a container on a conveyor belt (6) and enables a sampling port (1) to extend into the container, so as to complete sampling; one end of the conveyor belt (6) close to the reaction kettle (2) is provided with a film coating and sealing device (8); and the film coating and sealing device (8) can cover an opening of the container with a sealing film, so as to seal a sample in the container. By automatically completing a series of operations such as sampling, sample delivery, pH detection, etc. of the sample in the reaction kettle, and sealing and storing the sample during the operation process, the sample is prevented from reacting with outside components during the operation process, and additionally, harmful gas or highly irritating gas in the sample is prevented from being emitted, and the working efficiency and the detection accuracy are also improved, thereby making the detection process safer, and ensuring the healthiness of workshop staff.\nB: A refrigerator (100), comprising a refrigerator body (1), a drawer seat (2), a drawer body (3), at least one air-conditioning membrane assembly (7), and an air extractor (8). A low-temperature storage space (14) is formed in the refrigerator body (1), the drawer seat (2) is provided in the low-temperature storage space (14), and the end of the drawer seat (2) distant from a rear side wall (13) of the refrigerator body (1) is open and hollow; the drawer body (3) has a storage cavity (4) mounted in the drawer seat (2); a mounting cavity (5) and a backflow cavity (6) communicated with each other are defined between the drawer body (3) and the drawer seat (2); the mounting cavity (5) and the backflow cavity (6) are respectively provided on the different sides of the drawer body (3), and are respectively communicated with the storage cavity (4); the air-conditioning membrane assembly (7) is provided in the mounting cavity (5), and an oxygen transmission rate thereof is greater than a nitrogen transmission rate; and the air extractor (8) is provided in the low-temperature storage space (14) and configured to suction air in the air-conditioning membrane assembly (7), so that the air in the storage cavity (4) enters the mounting cavity (5), passes through the air-conditioning membrane assembly (7) in the mounting cavity (5) for deoxidization and filtration, and flows back to the storage cavity (4) through the backflow cavity (6), and the air in the drawer seat (2) is deoxidized and filtered by means of cyclic flowing, thereby greatly improving the air conditioning efficiency.\nC: Provided is a combustion-supporting oil-economizing device for a gasoline engine. The device comprises: an air inlet filter screen (1) provided with a grid-type air inlet structure (11); a reinforcing support rod (10) fixed on the air inlet filter screen (1), used for reinforcing the air inlet filter screen (1) and being of a cross-shaped structure; a controller (6) fixed on the air inlet filter screen (1) and connected to a storage battery of a gasoline engine; an air inlet pipe (2), a first shock absorption corrugated pipe (3), an air filter (4), a second shock absorption corrugated pipe (5), an ozone generator (7) and a gas inlet manifold (8), wherein same are sequentially connected in the gas inlet direction of the gasoline engine; an MQ-series ozone sensor (9) provided on an inner wall of the gas inlet manifold (8) and connected to the controller (6); and an MQ-series carbon monoxide sensor connected to the controller (6) and used for detecting the content of carbon monoxide in tail gas. Further provided is a control method for the combustion-supporting oil-economizing device for a gasoline engine. The oil-economizing device has a simple structure. The control method for the oil-economizing device is simple and convenient to control.\nD: An air purification device comprises a box body (11). An air discharging fan (12) is disposed at the lower end of the right side of the box body (11). An elementary filtering net (7), an enhanced activated-carbon adsorption layer (15), an HEPA high-efficiency refined filtration layer (16), a negative ion air freshening layer (17) and an ultraviolet sterilization lamp (8) are sequentially disposed on the left side in the box body (11) from the left to the right. An air intake pipe (6) is disposed on the outer side of the elementary filtering net (7), the lower end of the air intake pipe (6) is connected to an air intake hood by means of an indoor air intake control valve (14), and a left end of the air intake pipe (6) is connected to an outdoor air intake compartment by means of an outdoor air intake control valve (5). An air intake fan (13) is disposed in the air intake compartment. The air intake compartment communicates with the outside (3) by means of a pipe (4). An outdoor temperature sensor (1) and an outdoor particle substance detection sensor (2) are mounted on the wall of the outside (3). An indoor temperature sensor (18) and a carbon dioxide sensor (19) are disposed at the lower end of the box body (11). The device has a novel structure, stably operates, has a good air purification effect and a high efficiency, and has functions for adjusting the indoor air temperature and the indoor air oxygen content, thereby satisfying use requirements of large indoor public sites.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nMilk fat globules and a preparation method therefor; the milk fat globules have a structure composed of an inner layer and an outer layer; the inner layer is a spherical oil droplet; and the outer layer is formed by multiple nanospheres covering the surface of the spherical oil droplet, the nanospheres being fat coated by a protein and a phospholipid. The milk fat globules have an average particle size of 3-5 μm.\nA: A medium chain fatty acid oil powder and a preparation method therefor. In terms of weight percentage, the oil powder comprises the following raw material components: 60-80% medium chain triglyceride; and 20-40% low-GI carrier. The oil powder may also comprise sodium caseinate and/or a mono- or diglyceride fatty acid ester. The preparation method for the oil powder is: selectively adding a mono- or diglyceride fatty acid ester to the medium chain triglyceride to produce an oil phase solution; dissolving the low-GI carrier, and selectively adding sodium caseinate to produce a water phase solution; emulsifying and homogenizing the oil phase solution and the water phase solution, and spray drying.\nB: A method for preparing a drug-loaded silk fibroin nanocapsule, and a prepared drug-loaded silk fibroin nanocapsule. The method comprises: carrying out a coating treatment of applying alternating layers of silk fibroin and 3-aminopropyltriethoxysilane to functionally modified polystyrene microspheres, to ultimately obtain a multi-layer-structured coated polystyrene composite with a negative or positive potential, and finally removing the functionally modified polystyrene template with a template-removing reagent, to obtain a drug-loaded silk fibroin nanocapsule. The functionally modified polystyrene microspheres are positive potential microspheres, and silk fibroin is used for the first coating. In the case of negative potential microspheres, 3-aminopropyltriethoxysilane is used for the first treatment. The process is simple and has wide applicability. The dimensions of the prepared microcapsule can be controlled at the nanometer level, so that the microcapsule can more effectively transport a drug to the interior of a cell to function, and the surface potential of the microcapsule can be regulated according to the properties of the drug so as to enhance electrostatic adsorption and improve the effective drug loading rate.\nC: A highly uniform sulphide microsphere with precisely controllable particle size and a preparation method therefor. The present method is based on the idea of a core-shell-shell structure, and comprises the two processes of primary "core" growth and secondary "layer-layer" growth. In the first growth step, sulphide nanospheres with stable particle size are obtained by means of stable reaction conditions; in the subsequent steps, the particle size of the nanospheres can be precisely controlled by means of controlling the timing and amount of the addition of the metal and sulphur source. According to said synthesis method, by means of a preset target particle size and precisely designing the experiment steps, sulphide nanospheres of the target particle size can be obtained; in addition, the adjustable particle size range of the present method is significantly increased, the adjustable range being 100 nm-1000 nm.\nD: Relating to skin microspheres, a preparation method therefor, and an application thereof. Skin microspheres are provided. The skin microspheres comprise: dermal cell microspheres, the dermal cell microspheres comprising dermal cells which have a first signal pathway activity reporting system; an epidermal layer, which covers the surface of the dermal cell microspheres, and which comprise epidermal cells, the epidermal cells having a second signal pathway activity reporting system. The skin microspheres have at least the following beneficial effects: the skin microspheres employ a composite double-layer structure formed by wrapping an inner core formed from dermal cells and an outer layer of epidermal cells, thereby more closely simulating the skin structure of a human body. Furthermore, the inner core and outer shell each carry a signal pathway activity reporting system, such that the skin microspheres can promptly respond to the effect of a sample to be tested, thereby detecting the effect of the sample on the epidermal layer and/or dermal layer.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA yellow feather broiler feed for improving meat quality. The feed consists of the following raw materials in parts by weight: 15-30 parts of chicken multivitamin, 70-90 parts of poultry mineral, 130-220 parts of 50% of choline chloride, 40-60 parts of coccidium killing agent, 80-120 parts of Luprosil salt, 440-620 parts of corncob powder, 20-100 parts of additives, and 90,000-110,000 parts of a basic fodder. A cornflower flavone extract, ganoderma lucidum powder, a growth-promoting agent, cinnamaldehyde and the like instead of antibiotics are used as premixes of the additives in the basic fodder, so as to improve the growth performance, an immune organ index, intestinal tract health, the activity of indicators in serum, the activity of indicators in liver, and the gene expression level of yellow feather broilers, and finally to improve the meat quality and the immune function of the yellow feather broilers.\nA: Provided by the present invention are a single nucleotide polymorphism (SNP) chip for the whole chicken genome and an application thereof, wherein there are 50,000 SNP loci on the chip: 19,600 SNP loci, for which minor allele frequency (MAF) > 0.05 and which are evenly distributed in the genome, being respectively derived from whole chicken genome re-sequencing information of main local breeds and imported breeds in China, and being screened from among the white-feathered broiler, the yellow-feathered broiler and the speckle-feathered broiler; 14,000 SNP loci, which are associated with economic traits; 16,400 SNP loci, which make up genomic regions not covered by the foregoing two probes.\nB: A composition for protecting eyesight, the composition comprising the following components in parts by weight: 30-100 parts of vitamin C sodium, 0.1-1 parts of vitamin A, 1-10 parts of lutein, 10-20 parts of taurine, and 10-30 parts of flower tea and fruit extract, the flower tea and fruit extract being composed of the following raw ingredients in parts by weight: 40-60 parts of camellia chrysantha, 20-40 parts of buddleja officinalis, and 5-10 parts of fresh lemon. The composition has the effects of improving immunity, cooling, improving eyesight, and skin whitening, and can significantly improve symptoms such as blurred vision, dry eyes, eye swelling, eye pain, and photophobia.\nC: Disclosed is a healthy nutritious feed for animals, prepared by adding a microbial solution to feeding material at the volume-mass ratio of 1:2-3 (ml/g) and mixing same until uniform, wherein the feeding material is composed of the following raw materials in parts by mass: 50-99 parts of beans, 171-305 parts of corn, and 25-60 parts of auxiliary materials; and the auxiliary materials refer to one or a mixture of herbage, husks, wheat bran, soybean meal skin or sorghum husk. The nutritional ingredients of the healthy nutritious feed for animals are comprehensive and balanced. Domestic fowl and livestock raised with the healthy nutritious feed for animals have odourless animal faeces, bright fur and eyes, are active and strong, and have a good shape. The meat percentage of the fowl and livestock is 10% to 20% higher than that of common fowl and livestock.\nD: An immunity-enhancing composition. The composition comprises the following components in parts by weight: sodium vitamin C 50-200 parts, vitamin A 0.1-1 part, zinc gluconate 10-30 parts, taurine 10-30 parts, a flower/fruit extract 10-20 parts, and spirulina powder 10-20 parts. The flower/fruit extract is prepared from the following ingredients in parts by weight: golden camellia 20-40 parts and fresh mulberries 30-60 parts.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided in the present invention is an apparatus for automatically acquiring coconut water, the apparatus comprising a water acquiring needle, and a fixing and pressing apparatus, wherein the water acquiring needle is fixed on the fixing and pressing apparatus; the fixing and pressing apparatus is used for fixing a coconut and pressing the coconut to the needle tip of the water acquiring needle, such that the water acquiring needle is inserted into the inner cavity of the coconut to acquire the water therefrom; and the end of the water acquiring needle away from the needle tip is in communication with a pressure supplementing pipe and a water storage apparatus. The water acquiring needle comprises an inner pipe, an outer pipe and a needle head, wherein the needle head is detachably connected to an input end of the outer pipe; the inner pipe is arranged inside the outer pipe; a flow guide cavity is arranged between the inner pipe and the outer pipe; the input end of the outer pipe is provided with a plurality of water intake holes; an output end of the outer pipe is in communication with a water output pipe; an input end of the inner pipe is in communication with the pressure supplementing pipe; the pressure supplementing pipe is connected to an electric-control air valve; and an output end of the inner pipe is provided with a plurality of air output holes. In the present invention, the acquiring and storing of coconut water are both performed in a closed system, preventing the coconut water from being in contact with air, such that the original worth of the coconut water is guaranteed to the maximum extent; and automated production replaces manual operation, such that safety is improved, the productivity is increased, and the labor load is reduced.\nA: A combined coconut peeling and polishing integrated machine, comprising a first peeling device (1), a second peeling device (2), a polishing device (3), a conveying device (4), and a support (5). The first peeling device (1) is fixed above the second peeling device (2), and an output end of the first peeling device (1) is connected to an input end of the second peeling device (2). The second peeling device (2), the conveying device (4), and the polishing device (3) are all fixed to the support (5). A coconut peeled and outputted by the second peeling device (2) is conveyed to the polishing device (3) via the conveying device (4) for polishing.\nB: Disclosed in the present invention is a multiphase flow rotating jet-based mixing apparatus for strengthening grinding machining, comprising a mixing pipe, a rotating jet outer pipe, a rotating inner pipe, and a mixing feeding cover. Both ends of the rotating jet outer pipe are fixedly connected to the mixing pipe and the mixing feeding cover, respectively; the rotating inner pipe is provided in an inner cavity of the rotating jet outer pipe by means of a rotatable structure; a spiral guide groove is formed in an inner cavity wall of the rotating jet outer pipe; the mixing feeding cover is provided with two feeding inlets, and one end of each of the two feeding inlets is separately communicated with the spiral guide groove of the rotating jet outer pipe and an inner cavity of the rotating inner pipe; the mixing pipe is configured to be of a Venturi pipe structure, and a negative pressure section of the mixing pipe is communicated with the feeding pipe; the inner cavity of the rotating inner pipe is provided with a fixedly provided negative pressure screw rod. The multiphase flow rotating jet-based mixing apparatus can uniformly mix multiphase abrasives, thereby improving the effect of strengthening grinding machining.\nC: A balloon catheter, comprising: a tubular element and a balloon. The tubular element comprises an inner tube and an outer tube, and the balloon is fixed to the tubular element. The balloon is provided with an expanded state and a contracted state. The outer tube is sleeved outside the inner tube, and a first cavity is formed between the outer tube and the inner tube. The outer tube comprises a main outer tube body and a first recess, the first recess being located at a distal end of the main outer tube body, the outer diameter of the first recess being smaller than the outer diameter of the main outer tube body, the inner diameter of the first recess being smaller than the inner diameter of the main outer tube body, and the proximal end of the balloon being fixedly connected to the first recess. The inner tube comprises a main inner tube body and a second recess, the second recess being located at the distal end of the inner tube body, and the outer diameter of the second recess being smaller than the outer diameter of the main inner tube body. The balloon catheter so configured features good compatibility, a small pushing force during delivery, and low irritation to blood vessel walls.\nD: Disclosed is an electronic atomization device, comprising an outer tube, an inner tube, a mouthpiece assembly and an electrode assembly, wherein the inner tube is coaxially arranged inside the outer tube; the upper ends of the inner tube and the outer tube are simultaneously connected to the mouthpiece assembly, and the lower ends of the inner tube and the outer tube are simultaneously connected to the electrode assembly; the electrode assembly is provided with an electrode and is connected to a power supply device; the mouthpiece assembly comprises a mouthpiece, a clamp spring sheet, a connecting member and a sealing sleeve; through holes are provided in the centers of both the mouthpiece and the connecting member; an outer wall of the upper end of the connecting member is tightly connected to an inner wall of the lower end of the mouthpiece in a sleeving manner; a clamping hole is provided in the center of the clamp spring sheet; the clamp spring sheet is arranged between the mouthpiece and the connecting member; the sealing sleeve is wrapped around an outer wall and inner wall of the lower end of the connecting member; when the mouthpiece assembly is connected to the outer tube and the inner tube, an outer wall of the sealing sleeve is connected to an inner wall of the upper end of the outer tube in a sleeving manner; the upper end of the inner tube passes through the clamping hole in the clamp spring sheet; the clamp spring sheet is clamped in a groove provided in an outer wall of the upper end of the inner tube; and the outer wall of the upper end of the inner tube is connected to inner walls of the connecting member and the sealing sleeve in a sleeved manner. The beneficial effect of the electronic atomization device lies in that the mouthpiece assembly is easy to install and cannot be split after being installed.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA portable pineapple peeler (100), comprising: a peeler body (120) and a handle (110) which are detachably connected together. The pineapple peeler (100) further comprises a connection rod (140) between the peeler body (120) and the handle (110), wherein the peeler body (120) is detachably connected to the connection rod (140), and the connection rod (140) is detachably connected to the handle (110). The pineapple peeler (100) has different use modes for selection and use by different users, and also can be conveniently carried and transported.\nA: Disclosed is a connecting device for an electric balance vehicle and an electric balance vehicle used for carrying goods. The electric balance vehicle (200) comprises a vehicle body (210) and wheels (220) fixed to the vehicle body (210). The number of the vehicle body (210) is two, and the two vehicle bodies (210) are arranged and connected through a rotary mechanism. The rotary mechanism comprises a rotary shaft. One end of the connecting device (100) is detachably and fixedly connected with the electric balance vehicle (200), and the other end of the connecting device (100) is used for being fixedly connected to a goods shelf (300). The connecting device (100) is provided with a handle (400). The electric balance vehicle (200) is connectable to the goods shelf (300) by means of the connecting device (100), which is easy for transporting goods. The connecting device (100) is provided with a handle (400), enabling the user to hold the handle (400) on the connecting device (100) by a hand when driving the goods shelf using the electric balancing car, thereby increasing the stability of the user using an electric balance vehicle.\nB: A connecting device (100) for an electric self-balancing vehicle (200) and the electric self-balancing vehicle (200) for goods transportation. The electric self-balancing vehicle (200) comprises two vehicle bodies (210) and wheels (220) fixed on the vehicle bodies (210). The two vehicle bodies (210) are connected by a rotating mechanism, the rotating mechanism comprising a rotating shaft. The connecting device comprises a connecting part (120), a movable part (140) and a fixing part (110) used for fixing to the rotating shaft. One end of the connecting part (120) is detachably fixed to one end of the movable part (140) by means of threaded connection; the other end of the connecting part (120) is configured to be fixedly connected to a goods rack (300); the other end of the movable part (140) is detachably fixed to the fixing part (110) by means of a dowel (150); the movable part (140) can rotate along the dowel (150). The vehicle bodies (210) are provided with a movable groove (211) for movement of the movable part (140). The electric self-balancing vehicle is convenient for users to use and transport goods.\nC: An electric balancing vehicle (100), comprising a first vehicle body (110), a second vehicle body (120), and a middle body (130) arranged between the first vehicle body (110) and the second vehicle body (120); the middle body (130) comprises a first plate (131), a second plate (132), a third plate (133), a fourth plate (134), and an adjusting plate (135); one end of the first plate (131) is hinged with one end of the second plate (132) and the other end of the first plate (131) is detachably fixed to the first vehicle body (110); one end of the third plate (133) is hinged with one end of the fourth plate (134), and the other end of the third plate (133) is detachably fixed to the second vehicle body (120); the other end of the fourth plate (134) is hinged with the other end of the second plate (132); one end of the adjusting plate (135) is hinged onto the third plate (133), and the other end of the adjusting plate (135) is detachably fixed on the first plate (131); and when the adjusting plate (135) is detached from the first plate (131), the adjusting plate can be rotated, and thus the electric balancing vehicle can be conveniently carried by a user.\nD: A peeling and shelling device, comprising a fingerstall body (1) and a cover plate (2) hinged to the tail end of the fingerstall body; the head end of the fingerstall body has a sheet structure and is provided with a V-shaped groove (3), the groove walls of the V-shaped groove (3) are provided as cutting edges, and the top portions of two ends of the V-shaped groove are arc-shaped; and a peeling blade (4) is provided close to the tail end of the fingerstall body, and the cover plate can cover the peeling blade. The sheet structure at the head end achieve the peeling of fruit shells, the cutting edges of the groove walls of the V-shaped groove achieves the cutting of melon pedicels and picking with a single hand, and the cutting blade achieves the cutting of fruit peels. These settings enable the peeling and shelling device to have multiple functions.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a sieve structure and a fruit and vegetable juice/pulp extractor using the sieve structure, wherein the sieve structure comprises an upper sieve (15) and a lower sieve (17), and a middle ring sieve (23) is further provided between the upper sieve (15) and the lower sieve (17). A shielding ring (33) is fixed on the middle ring sieve (23) and several notches (331) are provided on the shielding ring (33). The notches (331) are in a sieve hole region of the middle ring sieve and the aperture diameter of the sieve holes in the middle ring sieve is greater than the sieve holes of the upper sieve and the sieve holes of the lower sieve. The fruit and vegetable juice/pulp extractor using the sieve structure comprises an electric motor base (25) and a machine head (20), wherein a pulping and filtering apparatus is provided above the electric motor base (25). The pulping and filtering apparatus comprises the sieve structure and a screw drive mechanism.\nA: Disclosed is an intelligent automatic conical net making machine. The net making machine comprises a net winding device (3) and a net binding device (4). The net winding device (3) comprises a filter screen winding shaft (3.1), a filter screen winding drum (3.3) and a net winding power device (3.2). The filter screen winding shaft (3.1) comprises a conical hollow shaft body, and a strip-shaped net binding hole is axially provided in the hollow shaft body. The filter screen winding drum (3.3) comprises two arc-shaped plates (3.5) hinged together, and the two arc-shaped plates (3.5) can be driven by the net winding power device (3.2) to be opened and closed along a hinged shaft to wrap the filter screen winding shaft (3.1) without shielding the net binding hole. The net binding device (4) comprises an automatic stapler (4.1) and a stapler base mould (4.5), and the stapler base mould (4.5) of the net binding device (4) can be inserted into the hollow shaft body of the filter screen winding shaft (3.1). The automatic stamper (4.1) can cooperate with the stapler bottom mould (4.5) through the net binding hole to complete a net binding operation. The equipment can stably and reliably finish the net supplying, feeding, winding and binding process, is smooth in equipment operation, and is suitable for popularization and industrial production in the industry.\nB: Disclosed are a filter screen structure and an indoor unit (1). The filter screen structure comprises a filter screen installation channel (2) arranged on the indoor unit (1), and a filter screen (3) configured to be installed in the filter screen installation channel (2), wherein the filter screen installation channel (2) at least comprises an installation opening (20); the filter screen (3) can slide in and out of the filter screen installation channel (2) via the installation opening (20); and the side of the filter screen (3) that is close to the installation opening (20) in an installation state is provided with an extension portion (4) which extends towards the lower portion of the indoor unit (1) and allows a user to directly pull and remove the filter screen (3). When the filter screen structure needs to be cleaned and removed, the user can slide the whole filter screen (3) along the filter screen installation channel (2) merely by means of directly pulling the extension part (4) without needing to step on a stool or open a panel, such that the filter screen (3) slides outwards from the installation opening (20) and finally slides out of the filter screen installation channel (2), thereby greatly improving the convenience of removing the filter screen of the indoor unit.\nC: Disclosed are a juicer sieve and a juicer. The sieve comprises a sieve opening changing area. The sieve opening changing area comprises a large sieve opening area (11) and a small sieve opening area (12), wherein the small sieve opening area (12) forms the base while the large sieve opening area (11) is provided in the small sieve opening area (12) and forms an interlocking engagement with the small sieve opening area (12). When operating the juicer, a force of air flowing through the sieve openings will constantly change, thereby extracting juice from a fruit pulp through the sieve using a method of alternating release and increase of pressure.\nD: A vena cava filter with a double-layer filter net (2), comprising a retrieval part (1), a filter net (2), and a support rod (3), the retrieval part (1), the filter net (2), and the support rod (3) being formed by being cut as a whole, a retrieval hook (11) being arranged on the retrieval part (1), the filter net (2) comprising an upper layer filter net (21) and a lower layer filter net (22), the upper layer filter net (21) and the lower layer filter net (22) being connected by means of a connecting rod (23) between the filter net (2), the filter net (2) forming a spider web structure on the projection surface perpendicular to the central axis of the vena cava filter, the support rod (3) being formed of a plurality of first support rods (31) and a plurality of second support rods (32), the plurality of first support rods (31) extending out from the tail end of the lower layer filter net (22), the plurality of first support rods (31) extending outward and gradually turning in the direction of the retrieval part (1) to form a filter cavity (311) open at the top, the plurality of second support rods (32) extending downward from the proximal end of the retrieval part (1) to form a filter cavity (321) open at the bottom, and each second support rod (32) being fixedly connected to the upper layer filter net (21) and the lower layer filter net (22).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn artificial intelligence infrared thermal imaging bra system having a breast disease detection function, comprising a side body (1), breast supporting layers (11) and shoulder straps (3), wherein the shoulder straps (3) are fixed to two ends of the side body (1); the breast supporting layers (11) are symmetrically fixed at positions on the top of the side body (1) located between the two shoulder straps (3), and sliding mechanisms (5) capable of being adjusted according to different breasts of users are arranged inside the two breast supporting layers (11); a rotating mechanism (4) for driving the sliding mechanisms (5) to move is arranged at a position on the top of the side body (1) located between the two breast supporting layers (11); the rotating mechanism (4) is in transmission connection with the sliding mechanisms (5); a sub-buckle (7) is fixed to one end of the side body (1); and a stretching mechanism (6) capable of matching the sub-buckle (7) to adjust users with different chest circumferences is arranged at the other end of the side body (1). After an infrared thermal imaging camera of the system is used for being connected to a mobile phone, both breasts are photographed, and infrared photos are read by an artificial intelligence image reading system comprised in the system, so as to provide a screening result, thereby achieving convenient detection of breast diseases at home, and providing the maximum possibility for early detection of breast diseases.\nA: A pair of focus-adjustable Augmented Reality (AR) glasses, comprising a glasses body support (1), support legs (17), a display module (3), an optical machine (18), and an L-shaped pipe (4). A lens (2) is symmetrically provided and fixed on the glasses body support (1), the two support legs (17) are respectively fixed on two sides of the glasses body support (1), the display module (3) is pasted on the lens (2), the optical machine (18) is fixed on one side of the glasses body support (1), and the display module (3) is fixed on the optical machine (18) by the L-shaped pipe (4). Two convex lenses (6) and a concave lens (7) located between the two convex lenses (6) are sealedly connected in the L-shaped pipe (4), and the concave lens (7) is connected to the L-shaped pipe (4) by means of a moving mechanism, so that the concave lens (7) is driven by the movement of the moving mechanism to move for focusing. A first reflecting mirror (5) and a second reflecting mirror (10) are provided in the L-shaped pipe (4), and a first grating (11) corresponding to the position of the second reflecting mirror (10) is fixedly connected to the inner wall of an L-shaped housing. A second grating (12) matching the first grating (11) is fixedly provided in the display module (3), so that an image projected by the optical machine (18) is projected onto human eyes by means of the first grating (11) and the second grating (12).\nB: A medical cloud platform-based breast screening image analysis system (10) and method, applied to a cloud server (1). The cloud server (1) is connected to a breast image collection terminal (4), a medical cloud platform (2) and a doctor diagnosis and treatment terminal (5) by means of a communication network (3). The breast image collection terminal (4) comprises an input unit (40), an infrared generator (41), an infrared receiver (42), an analog-to-digital converter (43), and a communication port (44). The breast screening image analysis system (10) comprises a user information obtaining module (101), a breast image collection module (102), a breast image processing module (103), a breast image analyzing module (104), and a breast image output module (105). The breast screening images of a user are collected by the breast image collection terminal (4), facilitating breast health screening of the of the user and saving the hospital resources; and de-noising and gray-scale hierarchical processing are carried out on the breast screening images to extract breast texture features from the breast screening images, so as to provide references for a doctor for diagnosis and screening of breast diseases, thereby assisting the doctor in improving the efficiency and accuracy for screening the breast diseases.\nC: Disclosed is a high-precision pipe segment soldering iron frame, comprising a bottom plate (1), wherein supporting plates (2) are fixed to two sides of an outer wall of the bottom of the bottom plate (1); the same mold box (4) is fixed between the two supporting plates (2); a supporting mechanism is fixed to the top of the mold box (4); an upper mold plate (5) is fixed to the bottom end of the supporting mechanism; a feeding hopper (6) is fixedly inserted into the center of an outer wall of the top of the upper mold plate (5); two screw rods (16) are rotatably inserted into an outer wall of the top of the bottom plate (1); the screw rods (16) are sheathed in sleeves (15) in a threaded manner; a lower mold plate (3) is fixed to the top ends of the sleeves (15); gears (14) are fixed to the bottom ends of the screw rods (16); the screw rods (16) are in transmission connection with a transmission mechanism by means of the gears (14); and the transmission mechanism is in transmission connection with a driving mechanism (12). Concrete pipe segments are discharged from below the mold box, thereby facilitating use by workers, and improving the practicality of a device.\nD: An automatic screening apparatus for ornamental gems prior to vacuum coating, comprising: a machine frame (1), a screening roller (2), and a recycling hopper (3). One working platform (11) and two operating mesas (12) are provided on the top part of the machine frame (1). The recycling hopper (3) is mounted and fixed within the machine frame (1). A set of first moving mechanisms (4a) and second moving mechanisms (4b) are mounted on the machine frame (1). The first moving mechanisms (4a) are arranged on two sides of the working platform (11). At least one screening roller (2) and a power motor (5) driving the screening roller (2) to rotate are mounted above the first moving mechanisms. Two sets of second moving mechanisms (4b) respectively span the two operating mesas (12) and are higher as a whole than the first moving mechanisms (4a). Several clamping components (6) are mounted and fixed on the second moving mechanisms (4b). The automatic screening apparatus replaces manual screening, is fast, prevents screening misses, increases production efficiency, and at the same time, by avoiding the phenomenon of reworking due to screening misses, reduces production costs.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA movement-allowable healthcare bra, comprising left and right breast support straps (1), a traction frame (2), a traction support frame (3), connecting pieces (4), recess supports (5), recess support sleeves (6), an integral recess support (7), a waist strap (8), left and right adjustment shoulder straps (9), a power box bag (10), a switch hole (11), power box lanyards (12), breast shaping bags (13), capsules or an air bags (14), bases (15), capsule plugs (16), inlets and outlets (17), elastic adjustment supports (18), booster springs (19), elastic notches (20), insertion slots (21), recesses (22), push grooves (23), push members (24), breathable layers (25), a power supply (26), a power supply box (27), hooks (28), electronic color changers (29), a control adjustment switch (30), power cords (31), lamps (32), vibrating rods (33), bra cups (34), outer fabric (35), inner fabric (36), bra cup frames (37), nipple holes (38), nipple shields (39), fake nipples (40), decorative straps (41), connecting straps (42), mesh connecting fabric (43), breast shaping pads (44), fillers (45), bend springs (46), bend spring sleeves (47), breast support straps (48), power grids (49), left and right diagonal adjustment shoulder straps (50), support straps (51), front hanging adjustment shoulder straps (52), left and right rear adjustment straps (53), left and right breast support strap support frames (54), invisible fixed straps (55), a support base power box (56), a V-shaped support spring (57), a V-shaped support spring sleeve (58), multiple diagonal adjustment straps (59), double-column support springs (60), double-column support spring sleeves (61), an integral breast support strap support frame (62), protruding columns (63), the recessed holes (64), a magnet charging plate (65), a charging socket (66), a charger (67), and a magnet charging head (68), so that movement is allowable and healthcare is achieved.\nA: A novel spraying device for forestry operations comprises a base plate (1), a cylinder apparatus (2), a water tank apparatus (3), a support apparatus (4), a pushing apparatus (5), a frame body apparatus (6), a rotating apparatus (7), an elastic apparatus (8) and a motor apparatus (9); the base plate (1) is provided with a first supporting block (11) and a first rolling wheel (12); the cylinder apparatus (2) comprises a first cross plate (21), a first support (22), a first cylinder (23), a first pushing rod (24), a second pushing rod (25), a curved rod (26) and a first cross rod (27); the water tank apparatus (3) comprises a water tank (31), a second support (32), a first supporting rod (33), a first spring (34), a first partition plate (35), a second cross rod (36), a second spring (37), a first pipeline (38), a first filter sieve (39) and a first valve (30); the support apparatus (4) comprises a second supporting rod (41), a first oblique rod (42), a second oblique rod (43), a third support (44), a third cross rod (45), a positioning ring (46), a third spring (47) and a first positioning column (48); the pushing apparatus (5) comprises a second cylinder (51), a third pushing rod (52), a pushing plate (53) and a piston ring (54); the frame body apparatus (6) comprises a frame body (61), a collecting hopper (62), a second filter sieve (63) and a sealing ring (64). The spraying device is able to continuously adjust the spraying height, thereby performing spraying operations to plants of different heights.\nB: Disclosed is an adjustable lifting push-up oxygen bra, comprising: cups (3), shoulder straps (20), side panels (7), back straps (9), lower wings (8) and mould cups (4), which are arranged in a bilateral symmetrical manner; an adjusting ring (2) and an adjusting hook (1) are disposed on each shoulder strap (20); each cup (3) includes two VILOFT fabric layers; a skin contact layer of each cup (3) is provided with a sidekick (5); each cup (3) is provided with a non-elastic lifting belt (6); the connection location of an upper end of each lifting belt (6) and an upper part of each cup (3) is provided with an adjusting buckle (17); and the adjusting hook (1) passes through the adjusting buckle (17) to cooperate with the adjusting ring (2). The cups (3) are made of VILOFT fabric layers, which is bacteriostatic and highly elastic, thus, allergic reactions can be avoided. The VILOFT fabric is soft and comfortable, highly elastic, and suitable for women with various types of breasts; it does not cause pressure or pain on the breasts, thereby avoiding problems related to mammary gland. According to the sagging degree of breasts, women can adjust the adjusting hook (1) to make it matched with different adjusting rings (2), such that the bra can be more suitable for different women and can keep perfect breast curve.\nC: A plaster applicator for burns comprises a base frame (1), a supporting device (2), a cylinder device (3), an application device (4), a storage device (5) and a motor device (6). The base frame (1) is provided with a first supporting block (11) and a first rolling wheel (12); the supporting device (2) comprises a plurality of first supporting rods (21), first curved plates (22), first cross plates (23), first supports (24), first fixing blocks (25) and first vertical rods (26); the cylinder device (3) comprises a cylinder (31), a first pushing rod (32), a frame (33), a second support (34), a second vertical rod (35), a second rolling wheel (36) and a first spring (37); the application device (4) comprises an application frame (41), a first cross rod (47), a third support (42), a gripping ring (43), a first oblique rod (44), a second cross plate (45) and a second spring (46); the storage device (5) comprises a storage box (51), a first positioning rod (52), a pressing plate (53), a pipeline (54), a valve (55), a first ejector rod (56) and a pressing block (57); the motor device (6) comprises a third vertical rod (61), a second rolling wheel (62), a connecting line (63), a second cross bar (64), a fourth vertical rod (67), a motor (65) and an output shaft (66). The plaster applicator for burns improves the efficiency and the precision of the application, and enhances the efficiency of the burn treatment.\nD: Provided is a new type of wound cleaning apparatus for use by nursing staff, comprising a bottom plate (1), a recovery apparatus (2), a storage apparatus (3), a first disinfection apparatus (4), a first support apparatus (5), a housing apparatus (6), a second support apparatus (7), a sterilization apparatus (8), and a spraying apparatus (9); a first support block (11), a first roller wheel (12), a power supply (13), and a first support bar (14) are disposed on the bottom plate; the recovery apparatus (2) comprises a first horizontal plate (21), a first partition plate (22), a first flow-diverting block (23), a first recovery frame (24), a first filtration mesh (25), a second recovery frame (26), a second support bar (27), a first support (28), a first inclined bar (29), and a second inclined bar (20); the storage apparatus (3) comprises a storage bin (31), a second partition plate (32), a first spring (33), a second spring (34), a second horizontal bar (35), a first holding bar (36), a third support (37), a fourth support (38), and a second inclined bar (39); the first disinfection apparatus (4) comprises a disinfection bin (41), a closed bucket (42), a third partition plate (43), a first heat-dissipating frame (44), a first heating rod (45), a first valve (48), a second pipe (49), and a third pipe (40). The wound cleaning apparatus for use by nursing staff is capable of preventing direct contact with the wound of a patient, thus reducing the pain endured by the patient.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is women's lingerie decreasing breasts visually. The lingerie comprises a strap, a wing and two symmetrically arranged cups, wherein an upper edge of each cup is connected to an upper edge of the wing by means of the strap, a lower edge of each cup is provided with a fold set configured in shape to correspond to a pull force of the strap, the cups protrude towards the side away from a body to form a breast accommodation space at a side proximal to the body, the breast accommodation space has a lower hemi-ellipsoidal space and an upper hemi-ellipsoidal space, the eccentricity of the lower space is less than the eccentricity of the upper space, the maximum width of the lower space is greater than the maximum width of the upper space, and the volume of the lower space is greater than the volume of the upper space. The women's lingerie of the present invention has the advantages of decreasing a breast visually, being light and breathable and having a good support capacity.\nA: A trolley for carrying items, comprising a base (2) with wheels, used for carrying items; an upwardly extendible trolley frame (1) fixedly connected to the base, said trolley frame (1) forming a baffle positioned on the front side of the base (2), and said trolley frame (1) comprising an upper part (11), a middle part (12), and a lower part (13), wherein the lower part (13) is connected to the front end of the base (2), the middle part (12) is provided with a collapsible storage apparatus (3), and the upper part (11) has a handle; the base (2) and the trolley frame (1) form a carrying space (4); the collapsible storage apparatus (3) has a stowed position and an expanded position, and when the collapsible storage apparatus (3) is positioned in the expanded position, the storage space formed by the collapsible storage apparatus (3) occupies part of the carrying space (4). In addition to having a carrying space (4), the present trolley also forms a storage space by means of the collapsible storage apparatus. The user can decide to expand or stow the storage apparatus according to their practical requirements, thus achieving the objective of reasonable placement of carried items.\nB: A magic stable lifting and push-up brassiere, comprising bilaterally symmetrical cup bodies (2), lower support parts (6) and upper lifting parts (1). The lower part of each cup body (2) is connected to the corresponding lower support part (6); each upper lifting part (1) is detachably connected to the upper part of the corresponding cup body (2); the upper lifting parts (1), the cup bodies (2), and the lower support parts (6) are ergonomic so as to provide even support forces; the cup bodies (2), the upper lifting parts (1), and the lower support parts (6) are all layered structures; a connector (5) for connecting the left and right cup bodies (2) is provided on the lower support part (6) or the cup bodies (2). According to the magic stable lifting and push-up brassiere, the cup bodies (2) are not easy to fall off and thus wardrobe malfunction would not occur easily; the magic stable lifting and push-up brassiere has stability and a lifting effect, facilitates matching outerwear, and meets the demand of breast shape correction.\nC: Disclosed is a top stop of a sealing zipper, the top stop comprising an upper end part (1), wherein one side of the upper end part (1) is provided with an inner recess (12); two clamping tongues (2) are symmetrically arranged within the inner recess (12); an accommodating space (3) for a top tongue of a slider to enter is provided between the two clamping tongues (2); the two clamping tongues (2) can respectively be inserted into lead-in openings on two sides of the top tongue of the slider; two side edges of the upper end part (1) are respectively provided with first edge grooves (11); outer side edges of the two clamping tongues (2) are respectively provided with second edge grooves (23); and the first edge groove (11) and the second edge groove (23) on the same side are in communication to form a fixing edge groove for fixing a cloth tape. By means of the inner recess (12) being correspondingly clamped with an upper part of the slider and the clamping tongues (2) stretching into the accommodating space (3) of the slider, there is no gap, and the sealing performance between the slider and the top stop is improved; and the top stop can effectively prevent the entry of mites or the spillover of fillers when in use, and has a tiny structure and a good sealing effect.\nD: Disclosed in the present disclosure are a fan apparatus and a communication device, belonging to the field of communication and electronic devices. The fan apparatus of the present disclosure is configured to be arranged in a space formed by enclosure by a box body and a cover plate of a fan plug-in box. The fan apparatus comprises a fan assembly, and further comprises: a first connecting structure for connecting an upper part of one side of the fan assembly to an upper part of a side plate of the box body; a second connecting structure for connecting an upper part of the other side of the fan assembly to the cover plate; and a third connecting structure for connecting two sides of a lower part of the fan assembly to two sides of a bottom plate of the box body. In the fan apparatus of the present disclosure, a fan and a vibration damping nail are connected together without needing various supports, such that the problem of it not being possible to carry out vibration damping on a fan due to the internal space of a box body of a fan plug-in box or a fan module being small or limited is solved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present utility model relates to a belt for a costume. In the present utility model, structures of a belt with a pin buckle and a belt with a box-frame buckle are combined together, and the belt is composed of a belt body with several belt holes at two ends thereof, and a belt buckle head provided with a pin and a short column. This realises the belt having an appearance similar to the pin buckle type belt, but achieving the functions of buckling, fixing and unstrapping with the structure of the box-frame buckle type belt, thus solving the problem that the degree of tightness of a traditional belt with a pin buckle is inconvenient to adjust. Moreover, the belt has the characteristics of a neat appearance, a simple structure, and being convenient to use and more durable.\nA: A human body omnidirectional motion positioning belt, comprising a rotating disk component (100) capable of rotating freely in a plane around a vertical fixed axis, a vertical telescoping mechanism (300) connected to the rotating disk component (100) via a damped universal joint (200) and capable of swinging freely with the damped universal joint (200), a horizontal rotating shaft element (400) movably connected to the vertical telescoping mechanism (300) and capable of rotating around a horizontal center shaft, and a belt (500) movably connected to the horizontal rotating shaft element (400) and capable of swinging up and down around a connection, the belt (500) being strapped on the human body and capable of moving simultaneously with the human body; and, a posture measuring module (600) provided on the vertical telescoping mechanism (300) and used for measuring and transmitting triaxial posture information thereof. By providing the combination of the rotating disk component (100), the damped universal joint (200), the vertical telescoping mechanism (300), the horizontal rotating shaft element (400), and the belt (500), implemented is the support and protection for the human body on a motion platform by the belt (500), and by breaking down the rotations of a three-way rotating shaft, ensured is the freedom of movement and posture of the human body in the belt (500).\nB: A vertical waistband comprises a vertical position-limiting device provided at any position above a crotch portion of a pair of trousers. The vertical position-limiting device comprises a band. Two ends of the band are respectively fixed to the front side and the back side of the trousers. A portion of the vertical waistband at the front side comprises a left strip and a right strip. Upper end faces of the left strip and the right strip of the portion of the vertical waistband at the front side are respectively fixed to a front waistline portion of the trousers. A portion of the vertical waistband at the back side comprises a left strip and a right strip. Upper end faces of the left strip and the right strip of the portion of the vertical waistband at the back side are respectively fixed to a back waistline portion of the trousers. The left strip and the right strip at the front side and the left strip and the right strip at the back side are connected at a lower end of the crotch portion of the trousers.\nC: A life-saving device equipped portable underwater power-assisted propulsion device having a self-adjustable steering function, comprising a waistband (1), a life-saving device (2) and a propulsion device (3), the waistband comprising a waistband back portion (11) and a waistband front portion (12), a buckle (13) for fixing the waistband being provided on the waistband front portion; a mounting plate (15), a first backpack (16) and a second backpack (17) are provided on the outer side of the waistband back portion; a connecting hole (154) and an arc-shaped groove (150) are provided on the outer side of the mounting plate, an arc-shaped rack (155) being provided in the arc-shaped groove; the life-saving device comprises a compressed air tank (22) provided in the second backpack, an air valve (23) and an airbag (21), the airbag being fixedly connected to the waistband; and the propulsion device comprises an upper cylinder body (32) and a lower cylinder body (33). The life-saving device equipped portable underwater power-assisted propulsion device having a self-adjustable steering function has a properly designed structure, and has the advantages of a simple structure, easy use, being safe and reliable, a high degree of intelligence, and having life-saving function, etc., effectively solving the problem that the existing underwater power-assisted propulsion device has no life-saving function.\nD: An intelligent massaging waist belt (100) for massaging an acupoint in a waist area, comprising a main body (1), a massaging device (2), and a controller (3). The massaging device (2) and the controller (3) are provided on an inner surface of the main body (1), wherein a massaging ball (20) and a transmission unit (22) used to drive the massaging ball (20) are provided within the massaging device (2). The controller (3) is connected to the massaging device (2), and is used to control the massaging ball (20) and the transmission unit (22). The transmission unit (22) is used to drive the massaging ball (20) to move in the main body (1) to an acupoint in a waist area of a user, and the massaging ball (20) is used to massage the acupoint in the waist area of the user. By employing the waist belt to massage an acupoint in a waist area of a human body, the present invention solves the problem of excessive time and labor required in a manual massage, and improves the effect of massaging an acupoint in a waist area.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA production process for making wigs by using a three-layer hair net, comprising the following steps: firstly, selecting a three-layer hair net, wherein the middle layer and the surface layer are both lace nets densely covered in hexagonal holes; dislocating and fixedly sewing the lace nets of the middle layer and the surface layer which are densely covered in hexagonal holes into a whole body by using a lockstitch sewing machine; nailing the same to a wig head mold, weaving the wig hairline onto the middle layer using a crochet by means of a process for weaving wigs, exposing the wig hairline below the middle layer, and braiding the hair in the middle layer; and then finally, stitching or braiding the bottom layer onto the middle layer. With the described process, the operation is easy and labor costs are reduced; furthermore, the resulting wig is more aesthetically pleasing, and the air permeability is better.\nA: A hairpiece product and a making process therefor. By designing of a single-sided hot melt adhesive membrane (2), a hairline layer (1), a double-sided hot melt adhesive membrane (3), and a support layer (4), the fixing stability of the hairline layer (1) is improved, and meanwhile a brand new production material and process are adopted, so that a production period is shortened, and the production efficiency is improved; a consumer can get comfortable wearing experience at a relatively low cost; and the involved production material is an environment-friendly non-toxic material, and is harmless to the environment and operation workers. The hairpiece product comprises the hairline layer (1), the single-sided hot melt adhesive membrane (2), the double-sided hot melt adhesive membrane (3), and the support layer (4), wherein the single-sided hot melt adhesive membrane (2) is provided on one side of the hairline layer (1); the double-sided hot melt adhesive membrane (3) is provided on the other side of the hairline layer (1), and is provided on an outer surface of the support layer (4); and an inner side of the support layer (4) is used for being detachably mounted on the head of a human body.\nB: Disclosed is an environmentally friendly anti-slip, self-skinning improved matting, composed of a PU self-skinning layer, an intermediate layer, glue and an anti-slip layer, wherein the intermediate layer is of the same material as or of a similar material to the PU self-skinning layer and is a thin layer foamed and fixed by casting in a mould; the top surface of the anti-slip layer is bonded to the intermediate layer by means of glue; rivet holes are provided in the bonded intermediate layer and anti-slip layer; the PU self-skinning layer is foamed and formed on the top surface of the intermediate layer, making the lower surface of the PU self-skinning layer and the top surface of the intermediate layer foamed and fixed together by casting in a mould; and the lower surface of the PU self-skinning layer also passes through the rivet holes and protrudes out of the lower surface of the anti-slip layer to expand and form rivets, forming a self-riveting fit by virtue of the rivets and rivet holes, further fixing and combining together the PU self-skinning layer and the anti-slip layer.\nC: Provided is a manufacturing method for a compound pot, wherein, the compound pot comprises an inner layer, an intermediate layer and an outer layer, the manufacturing method comprises: step S1, making a groove for accommodating a sensor on the intermediate layer; step S2, laying the sensor between the inner layer and the intermediate layer, and/or laying the sensor between the intermediate layer and the outer layer, the position of the sensor corresponds to the position of the groove, then compounding the intermediate layer with the sensor, the inner layer and the outer layer together by pressure welding, the temperature measurement of the compound pot is more accurate.\nD: A microfluidic chip consisting of a PDMS top layer, a PDMS intermediate layer, a PDMS bottom layer, and a glass substrate. The PDMS top layer, the PDMS intermediate layer, and the PDMS bottom layer are all provided with a groove at the front-middle portion of their respective lower surfaces. When the PDMS top layer, the PDMS intermediate layer, the PDMS bottom layer, and the glass substrate are sequentially aligned and bonded, three layers of flow paths, namely a top layer flow path, an intermediate layer flow path, and a bottom layer flow path, are formed respectively by the groove of the PDMS top layer and the PDMS intermediate layer, by the groove of the PDMS intermediate layer and the PDMS bottom layer, and by the groove of the PDMS bottom layer and the glass substrate. Three fluid inlets respectively in communication with the top layer flow path, the intermediate layer flow path, and the bottom layer flow path are sequentially arranged on the upper surface of the PDMS top layer on the basis of the positional order of the three layers of flow paths, namely the top layer flow path, the intermediate layer flow path, and the bottom layer flow path, while 10 to 1000 fluid outlets are arranged at the end of each layer of flow path. The present invention employs a scheme of multiple paths in parallel and fluid envelopment at the fluid outlets to achieve uniformity control of a product, and to prevent the product from being clogged within the flow paths.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multipurpose smart cap for outdoor sports, comprising rotating shafts (1), earphones (2), a temperature/humidity sensor (3), a sandwich (4), an ultrasonic distance detector (5), solar panels (6), a gas detection probe (7), a cap body (8), a miniature camera (9), a switch (10), a buckle (11), a touch screen (12), a band (13), a photoelectric sensor (14), a GPS chip (15), a storage chip (16), a wireless transceiver device (17), and a microprocessor (18). The multipurpose smart cap is provided with the temperature/humidity sensor (3) and the gas detection probe (7) which can directly measure the temperature/humidity and the gas content of a sports environment; the earphones (2) perform voice broadcast to prompt whether the current sport environment is suitable for sports; the provided ultrasonic distance detector (5) can detect a distance from an obstacle in front, and effectively provide a prompt in time; the provided miniature camera (9) can record a video in the whole process, thereby resolving the trouble caused by the need of carrying an entertainment device during running, such as a mobile phone. The provided cap body having the photoelectric sensor (14) can keep out wind and rain for persons playing sports while tracking their sports data.\nA: Disclosed in the present invention is a multifunctional speaker hat for intelligent interaction, comprising an easy-to-wear hat body and a visor provided at the front end of the hat body. Speakers are symmetrically arranged on the visor; a central controller for controlling and connecting the speakers is provided on one side of the hat body; the central controller is wirelessly connected to the speakers; a motion navigation member is provided at the top of the hat body; the motion navigation member comprises a gyroscope sensor and a GPS positioner; the central controller is wirelessly connected to the gyroscope sensor and the GPS positioner; a detection ring assembly for physical health monitoring is further provided on the inner side surface of the hat body and close to the visor; the central controller is electrically connected to the detection ring assembly; and the central controller is also internally provided with an MCU central chip for data operation processing. According to the present invention, the hat has a speech interaction function, a smart speaker function, a health data monitoring and early-warning function, a wireless data cloud storage function, and a real-time positioning and navigation function, so that the intelligence and functionalization of the hat are improved, and thus the market competitiveness is improved.\nB: A real-time water quality monitoring system, comprising a microprocessor (1), a camera (11), a water level sensor (12), a water quality sensor (13), a GPS transmitting module (14), and a wireless transceiver module (15). The camera (11), the water level sensor (12), the water quality sensor (13), the GPS transmitting module (14), and the wireless transceiver module (15) are all electrically connected to the microprocessor (1). The water quality sensor (13) comprises a temperature sensor (16), a PH sensor (17), a granulometer (18), and an ammonia-nitrogen analyzer (19). Multi-parameter testing equipment is used to carry out comprehensive testing of a water quality environment, and test results can be transmitted remotely, eliminating the need for on-site inspection. In addition, water resources and water surfaces can be observed in real time via the camera (11).\nC: A smart cup holder, comprising a cup holder body (1). The cup holder body (1) is a frusta-conical body with a large upper diameter and a small lower diameter; a pressure sensor (11) and a temperature and humidity sensor (12) are provided at the bottom of the cup holder body (1); a non-slip layer (13) is provided on the inner side wall of the cup holder body (1); a notch (14) is provided on the side wall of the cup holder body (1); a handle sleeve (15) for wrapping a handle is provided on the outer side wall of the cup holder body (1); a touch sensor (151), a processor, and a power module are provided on the handle sleeve (15); the pressure sensor (11), the temperature and humidity sensor (12), and the touch sensor (151) are separately connected with the processor; the pressure sensor (11), the temperature and humidity sensor (12), the touch sensor (151), and the processor are separately connected with the power module. By detecting relevant data by means of the pressure sensor (11) and the temperature and humidity sensor (12), and feeding the detected relevant data back to the processor for comprehensive analysis, the present invention can calculate the amount of water a user drinks and can also prompt the user to drink water. Moreover, the smart cup holder can prevent water from entering to influence the electrical performance.\nD: A smart monitoring system for fruits and vegetables on the basis of the Internet of things comprises an air blower (1), a smart socket (2), a heater (3), an illumination tube (4), a web camera (5), a solar cell panel (6), a storage battery (7), a microprocessor (8), a sliding door (9), a wireless radio frequency transceiver device (10), a temperature and humidity sensor (111), an illumination sensor (112), a seeding unit (12), a moisture sensor (13), a sprinkling device (14), a plate shed (15), a film reeler (16), a fly net (17), a motor (18), and a water pipe (19). A power supply manner combining the solar cell panel with the storage battery is used in the system, and the system has the advantages of low energy consumption and low cost; a master control machine room or a mobile device can be wirelessly connected to the wireless radio frequency transceiver device (10) to carry out accurate control and commissioning; two device control manners, which are an automatic control manner and a manual control manner, are used to monitor a production environment of fruit and vegetable comprising temperature, moisture and illumination, the control of fruit and vegetable production on the basis of a wireless sensor network technology is implemented, and the latticed fly net can effectively prevent mosquitoes from entering.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA smart helmet, comprising a helmet body (1). The helmet body (1) is provided with a mainboard compartment (2), a starting compartment (3), and a power supply compartment (4). A first connecting terminal (208) is provided in the mainboard compartment (2), a second connecting terminal (304) is provided in the starting compartment (3), and a third connecting terminal (409) is provided in the power supply compartment (4). The first connecting terminal (208) and the second connecting terminal (304) are connected by means of a first wire (110), and the first connecting terminal (208) and the third connecting terminal (409) are connected by means of a second wire (120). The first wire (110) is wound on a first wire clip (202) and a second wire clip (302). An end of the second wire (120) close to the first connecting terminal (208) is wound on the first wire clip (202), the middle part of the second wire (120) is wound on the second wire clip (302), and an end of the second wire (120) close to the third connecting terminal (409) is wound on a third wire clip (402). The first wire (110), the second wire (120), the first wire clip (202), the second wire clip (302), and the third wire clip (402) are integrally formed with the helmet body (1). Further provided is a method for manufacturing a smart helmet.\nA: Disclosed is a concatenation structure for a lamp, comprising a rear lamp cover and connection terminals. An opening is formed in the front end face of the rear lamp cover, and two grooves are formed in the rear end face of the rear lamp cover. The grooves form gaps in a side of the rear lamp cover. The connection terminals are two in number and are respectively located in the two grooves. The sides of the connection terminals facing toward the gaps are provided with connection holes. Wires extend into the grooves through the gaps and are inserted in the connecting holes. The concatenation structure further comprises glands respectively covering the two connection terminals. Two connection terminals are provided, and the two connection terminals are arranged separately, can be adapted to wires of different models, and are convenient to use. The glands and the rear lamp cover are engaged with each other by means of anti-backup teeth and limiting teeth, so that the assembly is convenient and quick. Crimping teeth on the bottom surfaces of the glands and at the bottom of the gaps can clamp the wires, so that an anti-pulling effect is achieved.\nB: Provided are an LED lamp and an assembly method for connecting an LED lamp by means of a terminal. The inner chamber of the lamp body (1) of the LED lamp has a bushing (4) stacked within it; an LED aluminum base plate is sleeved at the open end of the bushing (4); the center of the aluminum base plate (5) is provided with a through-hole (52); the bushing (4) is also provided with a PCB (6); the PCB (6) is provided with a first connecting terminal (7) running through the through-hole (52); a second connecting terminal (8) is sleeved on the other end of the PCB (6). The steps of the assembly method are the following: 1. Providing mounting holes (61, 62) on the two ends of the PCB (6), and by means of a connection terminal plug post (723) and the plug tab (83) of the second connecting terminal, connecting the connection terminal (72) and the second connecting terminal (8) to the two ends of the PCB (6); 2. Passing through the through-hole (711) of the connection jack the first connecting terminal (7) arranged on one end of the PCB (6) and it being snapped onto the LED aluminum base plate (5), then inserting the connection terminal lead post (721) into the through-hole (711) of the connecting jack; 3. Loading the LED aluminum base plate (5) and the PCB (6) into a recessed cavity of the bushing (4), and connecting the LED aluminum base plate (5) to the lamp body (1) by means of a screw (91); 4. Screwing the lamp cover (2) and the screw head (3) to the lamp body (1) by way of the two ends of the lamp body (1) being screwed together; 5. Passing the screw-shaped terminal (93) into the screw head (3) from the screw head through-hole (31) and pushing it into a stepped conical tube (82) of the second connecting terminal, thus completing assembly.\nC: Provided by the present disclosure is a wire connection device, relating to the field of electrical technology. The wire connection device comprises wire splitting terminals and electricity drawing terminals. Each wire splitting terminal comprises a first wire connection slot, a second wire connection slot, a first wire pressing cover plate and a second wire pressing cover plate, wherein first wire breaking mechanisms are arranged in the first wire connection slot, second wire breaking mechanisms are arranged in the second wire connection slot, and the second wire breaking mechanisms are conductively connected to the first wire breaking mechanisms; the first wire pressing cover plate is mounted on the first wire connection slot and can match the first wire breaking mechanisms, so as to break a wire by means of extrusion; and the second wire pressing cover plate is mounted on the second wire connection slot and can match the second wire breaking mechanisms, so as to break a wire by means of extrusion. According to the wire connection device provided in the present disclosure, a wire connection operation is convenient, thereby facilitating assembly by users; moreover, a plurality of assembly manners can be achieved by means of the matching of a plurality of wire connection devices, thereby meeting design requirements of various electrical connections.\nD: An intelligent helmet is applicable to the field of cycling safety and protection, and comprises a helmet body (B), a speaker (8) disposed at the helmet body (B), and a control module (9). The helmet body (B) is further provided with a wire support frame (5), an electrical signal port (7) is provided on the wire support frame (5), and the wire support frame (5) is provided with a wire therein to form a signal connection between the speaker (8) and the control module (9). The wire needed by the intelligent helmet is embedded in the wire support frame (5), and only one operation is required to fasten the wire support frame (5) to an inner shell mold during injection of an inner shell material, EPS, and formation of the helmet. Therefore, the present invention avoids manual labor for fastening respective segments of a wire required for directly fastening the wire to the outer shell (1), and accordingly prevents the low fastening efficiency caused thereby. Moreover, the present invention also prevents the pressure and temperature during pressing of the inner shell material, EPS, from influencing and shifting the wire and accordingly causing leakage of the inner shell, thus ensuring a good appearance and quality of the product. In addition, the wire support frame (5) increases the strength of the helmet.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA snowboard boot, comprising an integrally formed boot sole (1), a boot body (2) for accommodating a shoe worn by a user, and a boot shaft (3) for accommodating the user's leg and ankle joint. An opening (4) communicates a front end of the boot body (2) and the boot shaft (3), a shoe tongue (5) is connected to a front end of the opening (4), v-shaped notches (6) are provided on both sides of the opening (4) at a connecting portion between the boot body (2) and the boot shaft (3), the boot body (2) is provided with a fastening device that tightens both sides of the opening (4), and a plurality of through holes (7) penetrate the boot sole (1). A user can directly put the worn shoes into the snowboard boot, which is convenient for wearing and saves time. Furthermore, by providing the V-shaped notches (6) and the plasticity of plastic, the boot body (2) and the boot shaft (3) can be bent to a certain extent, such that the user's ankle joints can be bent to a certain extent to enable the wearer to perfectly complete a skiing action and to facilitate normal walking.\nA: Disclosed is clothing capable of being transformed into a bag, which is clothing capable of being transformed. The clothing comprises a clothing body. The clothing body consists of a clothing back part (1), a left front portion (2), a right front portion (3), sleeves (4), and a collar (5). An interlayer (6) is disposed in the clothing body. An upper end and left and right sides of the interlayer (6) are closed, and a lower end of the interlayer (6) is open. Lower end portions of an outer layer body (61) and an inner layer body (62) forming the interlayer are each provided with an accommodating portion (61a, 62a). A carrying strap (7) is disposed in each accommodating portion (61a, 62a). The accommodating portion (61a, 62a) has an upper end closed and a lower end open, and the open portion is sealed by using a connecting member (8) easy to be opened. After the inner layer body (62) and the outer layer body (61) of the interlayer (6) are folded upward, the outer layer body (61), the inner layer body (62), and the closed upper end and left and right sides of the interlayer (6) together form a bag, and the clothing body is accommodated in the bag. The clothing is capable of being transformed, the interlayer (6) is disposed in the clothing back part (1), the carrying straps (7) are disposed and accommodated in the accommodating portions (61a, 62a) at the lower end portions of the outer layer body (61) and the inner layer body (62) of the interlayer (6). The accommodating portion (61a, 62a) is sealed by using velcro or another connecting member (8) easy to be opened or closed. Therefore, no redundant structure can be seen outside the clothing, thereby not affecting the appearance of the clothing. The connecting portion of the carrying strap (7) in the accommodating portion (61a, 62a) does not contact the human body, thereby preventing a user from feeling uncomfortable.\nB: An easy-to-adjust food barbecuing device, relating to the field of barbecuing devices. The easy-to-adjust food barbecuing device comprises a housing (1); vertical rods (2) are inserted at two sides of the top of the housing (1); one end, close to the housing (1), of each vertical rod (2) penetrates through the top of the housing (1) and extends inside the housing (1); the top of the vertical rod (2) is rotatably connected with a sleeve (3), and the tops of two sleeves (3) are fixedly connected by means of a box body (4); the left side of the box body (4) is communicated with an air inlet pipe (5); a screw rod (6) is inserted at the top of the housing (1). By providing the vertical rods (2), the sleeves (3), the screw rod (6), a sliding rail (7), a sliding plate (8), a spring (9), a nut (10), a rotating disc (12), a protruding block (13), and a bushing (14), the easy-to-adjust food barbecuing device achieves the effect of adjusting the food barbecuing device, thereby facilitating the use of a user, and therefore also improving the working efficiency of the food barbecuing device.\nC: A shoe press, comprising a shoe sleeve roller (7) and a shoe pressing pairing roller (8), the shoe sleeve roller (7) comprising a supporting beam (4) and a shoe sleeve (13) rotatably mounted on the supporting beam (4), wherein a shoe plate (1) arranged in the shoe sleeve roller (7) and hydraulic loading devices are further comprised, the hydraulic loading devices are arranged between the supporting beam (4) and the shoe plate (1), the hydraulic loading devices are arranged in two rows in the width direction of the shoe plate (1), each hydraulic loading device is connected to the corresponding side of the shoe plate (1), and the two rows of hydraulic loading devices are connected to independent oil intake channels respectively and are used for pressurizing two sides of the shoe plate (1) respectively.\nD: A housing (100) for a ski boot, and a ski boot comprising the housing (100). The housing (100) comprises a left part (120) and a right part (130). The left part (120) and the right part (130) can switch between a state when the left part (120) and the right part (130) are separated from each other by a certain distance, and a state when the left part (120) and the right part (130) are tightly closed. In the separated state, the left part (120) and the right part (130) are separated relative to each other and can pivot relative to each other. The housing (100) further comprises a locking mechanism (150, 160). The locking mechanism (150, 160) comprises a pull line (151, 161) and a lock device (152, 162). The lock device (152, 162) can roll up the pull line (151, 161) and tightly pull the pull line (151, 161) so as to maintain the housing (100) in the closed state, or the lock device (152, 162) can release the pull line (151, 161) so as to allow the housing (100) be in the separated state. Hence, the housing (100) can be conveniently placed at an open position so as to take an inner boot (200) out from the housing (100) for facilitating walking of a skier. Moreover, when required, the inner boot (200) can be easily put into the housing (100) and the housing (100) is locked, so that the ski boot is used like a normal dual-plate ski boot.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA folding chair capable of being used as a walking stick comprises a main rod piece (20), two seat handles (30) and three supports (40). The bottom of the main rod piece (20) is provided with a plurality of first clip parts (261). The seat handles (30) are pivoted to the top of the main rod piece (20). The supports (40) are pivoted to the bottom of the main rod piece (20), and each of the rod pieces has two second clip parts (443). When the user unfolds the seat handles (30) and the supports (40), the first clip parts and the second clip parts are clipped together to keep the supports in the unfolded state, and the seat handles (30) are available for the user to sit on. When the seat handles (30) and the supports (40) are folded, the folding chair can be used as a walking stick.\nA: A fastening structure for a drum-shaped housing (1) and support legs (2), and a vacuum cleaner. A first fastening part (51) is mounted on the drum-shaped housing (1), and at least one second fastening part (22) and a third fastening part (24) are mounted on the support legs (2). Each of the support legs (2) comprises a housing (21), the housing (21) having a lateral face (211) oriented toward the drum-shaped housing (1). The at least one second fastening part (22) and the third fastening part (24) are mounted separately on the lateral face (211), and the at least one second fastening part (22) extends from the lateral face (211), allowing a fastening space (221) to be formed between the at least one second fastening part (22) and the lateral face (211). When the support leg (2) fastens to the drum-shaped housing (1), a lower part of the drum-shaped housing (1) enters into the fastening space (221), and the first fastening part (51) and the third fastening part (24) interlock. Among the first fastening part (51) and the third fastening part (24), one of the parts is a fastening projection and the other part is a fastening aperture.\nB: The present invention relates to a chassis structure and a quick release rack thereof. The chassis structure comprises a chassis body and one or more quick release racks. The chassis body is provided with a fixed frame. The fixed frame is provided with one or more slots, one or more first engaging parts, and one or more locking pieces. The first engaging part and the locking piece are provided in proximity to the slot. The quick release rack is mounted on the fixed frame. The quick release rack comprises a rack body and a clip element. The rack body is provided with a bottom plate and a second engaging part. The clip element is pivotally connected to the base plate. The rack body can be inserted into the slot. The second engaging part can be engaged with the first engaging part. The clip element can clip onto the locking piece. As such, achieved are the advantages that the chassis structure and the quick release rack are convenient to mount and unmount and the space for mounting the chassis body is reduced.\nC: Disclosed is a walking stick chair, comprising a main stick (1), a seat assembly (2) and a folding support assembly (3). When the walking stick chair is folded up, the folding support assembly (3) thereof can fold up near a handle part (11), i.e. the entire centre of gravity is in the top half; therefore, a user is saved from swaying while using the support thereof and is also able to be stably supported on the ground, avoiding the safety problems in existing structures where encountering uneven ground and colliding with other objects causes a user to be trapped and fall.\nD: A box (1) and buckle assemblies (25) thereof comprise a box body (10), a box cover (20), at least one buckle (30) and at least one connection piece (40) used for locking the box cover (20) and the box body (10). The connection piece (40) comprises a first end (42) and a second end (44) opposite to the first end (42). The first end (42) of the connection piece (40) is rotationally connected with one of the box body (10) and the box cover (20), and at least one clamping block (142) is arranged on the other one of the box body (10) and the box cover (20). The number of the buckles (30), the number of the connection pieces (40) and the number of the clamping blocks (142) are the same. The second end (44) of the connection piece (40) is rotationally connected with the buckle (30), and the buckle (30) comprises a clamping portion (38) capable of being clamped on the clamping block (142). The clamping portions (38) of the buckles (30) of the box (1) can be buckled with the clamping blocks (142), so that the box (1) can be buckled tightly. The buckles (30) are rotationally connected with the movable connection pieces (40), and the mobility of the buckles (30) during unlocking is enhanced, so that the box (10) is opened conveniently.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA deformable walking stick, comprising a hand-held part, a seat part and a support part which are rotatably connected in sequence, and further comprising a locking device for locking a rotation angle between the hand-held part and the seat part, and a rotation angle between the seat part and the support part. When in use, the hand-held part and the support part can be rotated and folded around the seat part by a certain angle to be deformed into a stool for rest, rollers (34) being provided at the bottom of the deformed stool, so as to facilitate pushing or sliding. A motor for driving the rollers (34) can also be mounted to deform the walking stick into an electric scooter.\nA: An anti-shake structure for a laser marking vibration lens comprises a vibration lens (1), a vibration lens motor (2), and a supporting plate (3) used for fixing the vibration lens motor (2). An output shaft (21) of the vibration lens motor (2) is connected to one end of the vibration lens (1), and is used for driving the vibration lens (1) to rotate. The anti-shake structure also comprises a fixing frame (4) and a clamping portion (5) that is used for clamping the other end (1a) of the vibration lens. The clamping portion (5) and the vibration lens (1) synchronously rotate. A rotation supporting portion (8) is disposed on the fixing frame (4). The clamping portion (5) is in rotation connection to the rotation supporting portion (8). A vibration lens cavity comprising the anti-shake structure. The problem of vibration lens jitters in a conventional laser marking process is solved, and the accuracy and operation safety of laser marking are improved; and proper connection and arrangement of the rotation supporting portion, the clamping portion and the fixing frame improve the overall balance and stability of a marking device.\nB: Provided is a hand-held apparatus (1). The hand-held apparatus comprises: a telescopic rod (200), a fixing frame (110), a hand-held part (400) and a foot support (600), wherein the fixing frame (110) is mounted at the top end of the telescopic rod (200) for supporting a movable electronic device; the hand-held part (400) is sleeved on the telescopic rod (200) at a position close to the bottom end thereof, and the bottom end of the telescopic rod can move, relative to the hand-held part, between a first position and a second position; the foot support (600) is mounted at the bottom end of the hand-held part in a foldable manner; and when the bottom end of the telescopic rod is at the first position, the foot support can be in a folded state to accommodate the bottom end of the telescopic rod in the foot support. The above hand-held apparatus can adjust the distance between the fixing frame and the hand-held part by adjusting the position of the bottom of the telescopic rod, thereby achieving an additional length adjustment. Further provided is a hand-held apparatus, comprising: a rod member (83) and a fixing frame (81), wherein the fixing frame is rotatably mounted at the top end of the rod member; the fixing frame comprises a first snap-fit part and a second snap-fit part, wherein the first snap-fit part and the second snap-fit part are snap-fitted together to form an opening (812) for accommodating at least part of a first movable electronic device, and the opening is in the shape of a closed ring; and at least one of the first snap-fit part and the second snap-fit part is provided with a structure for locking the first movable electronic device. The above hand-held apparatus can improve the usage safety of the first movable electronic device. Further provided is a photographing device based on either of the above hand-held apparatuses.\nC: Disclosed is a labor-saving binder clip, comprising a clip body (1) and a pair of rod members (40). The clip body comprises a pair of clamping parts (10), a rear part (20), and a pair of supporting parts (30); the clamping parts are elastically and integrally connected to the supporting parts and the rear part, so that the clip body forms an opening (31) and an accommodating cavity (34); the rod members are rotatably connected to the supporting parts, and the length of the rod members is greater than that of the clip body; the clip body is provided with abutting holes (35) and fulcrum parts (353), and the abutting holes are provided between the clamping parts and the rear part; when the rod members open the opening, the fulcrum parts are formed at abutting positions between the rod members and the upper edges of the abutting holes. Therefore, it is not necessary to provide protruding fulcrums between the clamping parts and the rod members, the structure is simple, and production processing is simplified with less effort.\nD: Disclosed is an automatic folding crutch stool, comprising a crutch and a stool support connected to the crutch. The crutch comprises a handle (1) and a crutch body. The handle (1) is provided at an upper end of the crutch body. The crutch body is provided with a drive control device, a guide sleeve (6) capable of sliding and rotating on the crutch body, and a fixing base (11) capable of rotating on the crutch body. The stool support comprises at least two supporting rods. One end of one supporting rod is hinged to the guide sleeve (6), and one end of the other supporting rod is hinged to the fixing base (11). The supporting rods are hinged to one another in the middle. The drive control device drives the guide sleeve (6) to slide up and down and rotate along the crutch body. A control button of the drive control device is provided on the crutch body and close to the handle (1).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA handle-operated left/right angle-adjustable parasol comprising a canopy adjusting mechanism and a transverse rod rotating mechanism. The transverse rod rotating mechanism is provided at the middle part of a transverse rod. The front end of a tilted rod is rotatably connected to the transverse rod rotating mechanism. The lower end of the transverse rod is rotatably connected to a sliding block via the canopy adjusting mechanism. The canopy adjusting mechanism comprises a transverse rod connector, an upper clutch gear, a lower clutch gear, and a handle. The upper clutch gear is fixedly connected to the transverse rod. The lower end of the transverse rod connector is rotatably connected to the sliding block. The upper end of the transverse rod connector runs through the lower clutch gear and is rotatably connected to the upper clutch gear. The lower clutch gear is capable of making axially limited movements along the transverse rod connector. The handle is rotatably provided outside the upper clutch gear and is abutted against the upper end of the lower clutch gear. When the handle is rotated downwards, the lower clutch gear is moved downwards and separated from the upper clutch gear, and the handle is rotated left or right to rotate the transverse rod to make left/right adjustments of the canopy. The present utility model is structurally simple and reasonable, is convenient to operate, provides steady and reliable positioning, implements sun-blocking angle adjustment of the canopy simply by operating the handle, and provides enhanced practical performance.\nA: A joint energy storage assistance mechanism (100). One end of a sleeve (10) of the joint energy storage assistance mechanism serves as a first pivot end (100a); a one-way clutch rack (40) is capable of sliding axially with respect to a sliding rod (20) and one end of the one-way clutch rack (40) serves as a second pivot end (100b); an elastic structure (30) abuts between the sliding rod (20) and the sleeve (10). When a joint requires energy storage, the one-way clutch rack (40) is switched to a fixed state, the sliding rod (20) moves along with the one-way clutch rack (40), and kinetic energy of the sliding rod (20) is converted into potential energy of the elastic structure (30) to achieve energy storage. When the one-way clutch rack (40) and the sliding rod (20) return, the elastic structure (30) releases energy to drive the one-way clutch rack (40) and the sliding rod (20) to move in an opposite direction, thereby yielding a pushing assistance effect on a movable arm (300). When the one-way clutch rack (40) is switched to a free state, the one-way clutch rack (40) is capable of sliding with respect to the sliding rod (20), and the elastic structure (30) cannot achieve energy storage. The present invention also relates to a robot joint structure and a robot. Energy storage and energy release can be achieved by promptly catching and releasing the one-way clutch rack (40).\nB: Disclosed in the present invention is an electric winch, belonging to the technical field of winches. The object of the present invention is to provide an electric winch having long service life and high reliability, and the main points of the technical solution thereof are in that: a U-shaped frame is included, a winch wheel is provided on the U-shaped frame, the winch comprises a winch shaft rotatably connected to the U-shaped frame, two baffle plates are provided on the winch shaft, one end of the winch shaft extends out of the U-shaped frame and is driven by a motor, a worm gear box is provided between the motor and the winch shaft, a clutch is further provided between the worm gear box and the winch shaft, the clutch comprises a clutch housing fixedly provided on an outer side wall of the U-shaped frame, a transmission gear shaft sleeve and a clutch gear shaft sleeve fitting the transmission gear shaft sleeve are rotatably provided in the clutch housing, and a connecting key inserted into a key slot is provided on an output shaft of the worm gear box. The arrangement of the transmission gear shaft sleeve and the clutch gear shaft sleeve in an engagement manner achieves the effects of prolonging the service life of the clutch and enhancing the working reliability of the clutch.\nC: Provided is a new type of bicycle handle having a heating function, comprising a heating device and a brake lever; the heating device is a sleeve (5) fixed on the surface of the handle; the surface of the sleeve (5) is provided with an accommodating chamber (51); the accommodating chamber (51) is equipped with a graphene heating film (52); an electrode is disposed on the graphene heating film (52), and the electrode is fixedly connected to an external electrical connector (53) by means of a wire; the brake lever comprises a column (3), an operating handle (1), a positioning rod (2), and a rebound device (4); the column (3) is fixedly connected to the upper side of the handle; the operating handle (1) is rotatably connected to the column (3) by means of a middle part, and the column (3) is divided into an inner pressing part (11) and an outer connecting part (12); the pressing part (11) is fixedly connected to the inner side of the handle by means of the rebound device (4); the positioning rod (2) is an "L" shape consisting of a horizontal rod (21) and a vertical rod (22); the middle part of the vertical rod (22) is fixedly connected to the outer end of the connecting part (12); the top of the vertical rod (22) is fixedly connected to a brake steel rope, and the end part of the horizontal rod (21) is supported on the outside of the handle. The bicycle handle can effectively heat the human hand and reduce the heat loss of the palm when braking.\nD: A combination-type hand-push opening and closing hanging umbrella, comprising an umbrella base (1), an upright column (2), a crossbar (6), an inclined bar (5), and an umbrella frame, the umbrella base (1) comprising a bottom base (1.1) and a fixed base (1.2), the bottom base (1.1) being made by welding a bottom plate (111) to a vertical square pipe (112), a square groove (121) sleeved with the vertical square pipe (112) protruding from the fixed base (1.2), positioning bosses (122) capable of sleeving with several connecting sleeves (1.3) being formed on the fixed base (1.2) at intervals in the circumferential direction, the inner diameter of the connecting sleeve (1.3) matching the outer diameter of the upright column (2) and the positioning bosses (122), the lower end of the connecting sleeve (1.3) being sleeved on a positioning boss (122) and the side part of the upper end of the connecting sleeve (1.3) being fixed to the vertical square pipe (112), the lower end of the upright column (2) being inserted into the connecting sleeve (1.3) and the upper end of the upright column (2) being provided with a top cap (3), and the top cap (3) being connected to the inclined bar (5), the top caps (3) of different umbrella frames being connected and secured by means of connecting pieces (4); the design is novel, the structure is simple and rational, and assembly is quick and convenient; the shaded area is greatly increased by spliced assembly, whilst also achieving the objectives of saving the labour of opening the umbrella, convenient adjustment and securing, and strong practical performance.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a suitcase convertible into a seat, comprising: a suitcase body comprising a front suitcase housing and a rear suitcase housing; and a safety guard bar comprising a first connection rod, a support rod, and a second connection rod. One end of the first connection rod is movably connected to a top portion of the rear suitcase housing, the other end of the first connection rod is connected to one end of the support rod, and the other end of the support rod is connected to the second connection rod. The first connection rod and the second connection rod are both provided perpendicular to the support rod. The support rod coincides with a rotation plane formed when the first connection rod is turned upside down. A flat surface defined by the support rod and the second connection rod is perpendicular to a flat surface defined by the first connection rod and the support rod. The invention enables full use of a suitcase, and allows users to take a seat anywhere and at anytime during a long journey.\nA: A lifting device and an automated guided transport vehicle. The lifting device comprises: a base and a first link mechanism (10) provided on the base. The first link mechanism (10) comprises a first link (102) to a sixth link (112). The first link (102), the second link (104), the third link (106), and the base form a first parallel four-link mechanism. A first end of the fourth link (108) is hinged to a second end of the first link (102). A first end of the fifth link (110) is hinged to a second end of the second link (104). The sixth link (112) has a first end hinged to a second end of the fourth link (108), and a second end hinged to a second end of the fifth link (110). The fourth link (108), the fifth link (110), the sixth link (112), and the third link (106) form a second parallel four-link mechanism. A lifting table (114) is provided on the sixth link (112). The lifting device is provided on a vehicle body of the automated guided transport vehicle.\nB: Disclosed is an integrated automatic unfolding/folding stair-climbing trolley suitcase, comprising a case body. The bottom of the case body is provided with universal wheels; a telescopic pull rod is provided on one side of the case body; the bottom of a slide plate is provided with a one-way wheel; an inner support is separately connected to the telescopic pull rod and the case body; limiting connecting rods on left and right sides are movably connected to the inner support by means of a first connecting rod and are movably connected to the slide plate by means of a second connecting rod; torsion spring connecting rods on the left and right sides are movably connected to the inner support by means of a third connecting rod and are movably connected to the slide plate by means of a fourth connecting rod; a double rocker mechanism is formed between the limiting connecting rods, the case body, the torsion spring connecting rods, and the slide plate; an elastic device has one end connected to the inner support and the other end connected to the fourth connecting rod; and a shock absorbing device is provided between the slide plate and the inner support. In the present invention, the slide plate can be automatic unfolded or folded to assist climbing stairs, and has shock absorbing and cushioning devices, thereby not only preventing damage to the case body itself or the fragile items therein, but also greatly reducing the noise and vibration produced during climbing stairs.\nC: A novel fastening fixture for PCB soldering comprises a main rod (1). A lower end of the main rod (1) is rotatably connected to one end of a pressing rod (2). A middle portion of the pressing rod (2) is rotatably connected to one end of a first rotating member (3). A handle (16) is provided on the other end of the pressing rod (2). The other end of the first rotating member (3) is rotatably connected to a middle portion of a second connecting rod (8). A hole is provided at a position above the lowest end of the main rod (1). The main rod, the pressing rod, a first connecting rod, the second connecting rod, a latch rod, and multiple rotating pins are provided to form a novel holding rod connection device. The overall structure of the connection ensures a stable hold, and is simple and convenient to operate. When compared with a conventional fastening frame, the novel fastening fixture holds a PCB board more stably. A support protrusion is provided at a bottom end of a joint between the main rod and the pressing rod, such that a lever can be used to decrease required manpower, and improve strength and stability of the hold.\nD: A baby stroller and collapsible mechanism thereof, and a method of collapsing and folding a baby stroller. The collapsible mechanism comprises two side frames and horizontal rods (70, 80, 25, 65). The side frames comprise front lower rods (10), back lower rods (20) and push rods. A front support rod (30) and a back support rod (40) are connected between the front lower rod (10) and the push rod to form a collapsible first 4-rod mechanism. A sequentially connected first connection rod (31) and second connection rod (32) pass between the front lower rod (10) and the back lower rod (20) to form a second 4-rod mechanism. One end of the first connection rod (31) is fixedly connected to or integrated with a lower end of the front support rods (30). The first 4-rod mechanism arranged in a folded state and a back lower rod (20) are stacked in layers at an upper side and a lower side of the front lower rod (10), respectively. An upper end of the back support rod (40) and a middle portion of the push rod are fixed and locked or unlocked and folded by a lock mechanism. The collapsible mechanism has a reasonable structure, has a decreased size after being folded, and is easy and effortless to operate.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a power bank, comprising a power bank housing (4), a charging panel (2), a cover plate (1) and a junction box (3), wherein the power bank housing (4) is internally provided with a power supply cavity (41) for placing a charging power supply; the charging panel (2) is mounted over the power bank housing (4); the cover plate (1) is mounted over the charging panel (2); the charging panel (2) is provided with an object placing cavity (22), a charging port (23) and a USB port (24); the junction box (3) is detachably mounted below the charging panel (2); and the junction box (3) is internally provided with a USB connector mounting cavity (32) for mounting a USB connector and a charging connector mounting cavity (33) for mounting a charging connector, with the USB connector mounting cavity (32) being in communication with the USB port (24), and the charging connector mounting cavity (33) being in communication with the charging port (23). The power bank having the object placing cavity (22) provided on the charging panel (2) thus achieves the basic function of charging, while also providing the function of placing small articles, in particular, cards such as business cards, and makes it convenient to take and place same.\nA: A hinged-lid electronic cigarette charger, comprising an upper casing (1) and a lower casing (15), a charging device for charging an electronic cigarette being provided in the lower casing; the upper casing and the lower casing is hinged by means of a hinge device; a first magnetic device (2) is provided in the upper casing; a second magnetic device (11) is provided in the lower casing; and when the upper casing is closed on the lower casing, the first magnetic device and the second magnetic device are attracted. The hinged-lid electronic cigarette charger can prevent a lid of said charger from opening during the process of charging the electronic cigarette, avoiding instances of poor contact between the electronic cigarette and said charger.\nB: Provided by the present application are a candle lamp charging apparatus (1) and a candle lamp (2); the candle lamp charging apparatus comprises a housing (11), a light energy collecting plate (12), and a charging connector (13); an accommodating cavity (100) used for accommodating the candle lamp is formed inside the housing; the side wall of the housing is provided with a placement and removal opening (110) used for access to the candle lamp; the light energy collecting plate is disposed on the side wall of the housing, and faces away from the placement and removal opening; the charging connector is disposed protruding on the inner surface of the bottom wall of the housing, and is electrically connected to the light energy collecting plate; the bottom of the candle lamp is provided with a charging interface (20) used for sleeving to the charging connector; the candle lamp is internally provided with a rechargeable battery, a control circuit board, and a light-emitting element. The present application provides a candle lamp charging apparatus which converts light energy into electrical energy by means of the light energy collecting plate, and electrical energy is supplied to the candle lamp by means of the charging connector, enabling the built-in rechargeable battery of the candle lamp to be charged when the power is low, thus achieving reuse.\nC: A family-type mini flashlight structure, relating to the technical field of flashlights. The flashlight comprises a cylindrical body (5); a magnetic sticker (2) facilitating magnetic fixation and a slip-resistant layer (4) facilitating gripping are provided on the body (5); one end of the body (5) is rotatably connected to a front cover (1) by means of a connecting block (9), and led lamp beads are provided in the front cover (1); a storage battery is provided in the body (5), the storage battery and the led lamp beads are connected to wires by means of a button (3), and the button (3) is provided on the body (5); one end of the body (5) away from the front cover (1) is provided with an ultraviolet lamp (7), a USB charging interface (6), and a charging port (8); the ultraviolet lamp (7), the USB charging interface (6), and the charging port (8) are connected to the storage battery by means of the wires. The magnetic sticker (2) is provided on the body (5) so as to facilitate fixing the flashlight, the ultraviolet lamp (7) can perform ultraviolet irradiation for fake currency detection, and the function is no longer single; moreover, the storage battery is connected to the USB charging interface (6), so that the flashlight structure cannot only be used as a flashlight but can also be used as a power bank.\nD: Disclosed is a structure for a multi-functional Bluetooth speaker, the structure comprising a charging base (1), a speaker main body (2), and an LED lamp body (3), wherein a base casing (11) of the charging base (1) comprises a lower base casing (111) and an upper base casing (112), a base accommodation cavity (12) of the base casing (11) is embedded with a first PCB circuit board (13) and at least two automatic winders (14), an outer surface of the base casing (11) is provided with a power supply input interface (15), each automatic winder (14) is respectively wound with a charging connection line, and an external pulling end part of each charging connection line is respectively provided with a USB charging connector (16); a speaker casing (21) of the speaker main body (2) comprises a lower speaker casing (211) and an upper speaker casing (212), wherein a speaker accommodation cavity (22) of the speaker casing (21) is embedded with a second PCB circuit board (23) and a speaker (24), and the second PCB circuit board (23) is provided with a Bluetooth module; and the LED lamp body (3) comprises a lamp base (31) and a light-transmissive lamp cover (32), wherein the lamp base (31) is screwed on a third PCB circuit board (33), and the third PCB circuit board (33) is provided with LED lamp beads (34). By means of the above-mentioned structural design, the Bluetooth speaker has the advantages of having novel structural design, having various functions, and being convenient to use.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to a portable case for an electronic cigarette and a cartridge thereof. The portable case comprises: a top cover, a bottom cover pivotally connected to the top cover, at least two magnets provided in the top cover, and at least two magnets provided in the bottom cover, wherein the magnets provided in the top cover and close to a pivoted place of the top cover and the bottom cover are mutually attracted to the magnets provided in the bottom cover and far away from the pivoted place of the top cover and the bottom cover, and the magnets provided in the top cover and far away from the pivoted place of the top cover and the bottom cover are mutually exclusive to the magnets provided in the bottom cover and close to the pivoted place of the top cover and the bottom cover, so that the top cover is easy to open and close with respect to the bottom cover.\nA: A cartridge (10) and an electronic cigarette (100). The cartridge (10) comprises: a main body (11) having a liquid storage cavity (110), a semi-closed end, and an open end opposite of the semi-closed end; a cartridge base cover (13) engaged with the open end of the main body (11), and provided with a liquid injection opening (130) and a pressure relief opening (132) in communication with the liquid storage cavity (110); and a rotating liquid injection cover (15) engaged with the cartridge base cover (13), and provided with a first communication opening (150) and a second communication opening (152). The rotating liquid injection cover (15) is rotatable about an axis relative to the cartridge base cover (13), and can be rotated to a position in which the first communication opening (150) is not aligned with the liquid injection opening (130), or a position in which the first communication opening (150) is in communication with the liquid injection opening (130) and the second communication opening (152) is in communication with the pressure relief opening (132). In the cartridge and the electronic cigarette, the rotating liquid injection cover disposed at a cartridge base is rotatable relative to the cartridge base cover when driven by an external force, such that liquid injection can be achieved simply by rotating and separating the position of the two to expose the liquid injection opening. The pressure relief opening is further provided at the cartridge base cover, and communicates with the exterior when the liquid injection opening is exposed, thereby preventing spilling of an injected liquid.\nB: Provided is an electric balance scooter, comprising a top cover, a bottom cover, an inner cover, a rotating mechanism, two wheels, two wheel hub motors, a plurality of sensors, a power supply and a controller, wherein the top cover comprises a first top cover and a second top cover which are symmetrically arranged and can mutually rotate; the bottom cover is fixed to the top cover, and the bottom cover comprises a first bottom cover and a second bottom cover which are symmetrically arranged and can mutually rotate; the inner cover is fixed between the top cover and the bottom cover, and the inner cover comprises a first inner cover and a second cover which are symmetrically arranged and can mutually rotate; the rotating mechanism is fixed between the first inner cover and the second cover; the two wheels are rotatably fixed to two sides of the inner cover respectively; the two wheel hub motors are fixed in the two wheels respectively; the plurality of sensors are arranged between the bottom cover and the inner cover respectively; the power supply is fixed between the first bottom cover and the first inner cover; and the controller is fixed between the second bottom cover and the second inner cover, the controller is electrically connected to the plurality of sensors, the power supply and the wheel hub motors, and the controller controls the corresponding wheel hub motors to drive the corresponding wheels to rotate according to the sensed signals transmitted by the sensors.\nC: A light connector, comprising a bottom cover, a top cover, and a pivot connection body located between the top cover and the lower cover. The pivot connection body comprises one or more concentric and stacked pivot connection units. Each pivot connection unit comprises a pivot connection ring and a male connection member provided on the side wall of the pivot connection ring. The top cover, the bottom cover, and the pivot connection rings enclose to form an accommodating cavity. A connection rod is provided inside the accommodating body. One end of the connection rod is connected to the bottom cover by means of a first screw, and the other end of the connection rod is connected to the top cover by means of a second screw. The male connection member matches a female connection member provided at an end portion of a light. The connector of the present invention enables a light to be adjusted within a range of 360°. When the angle of the light is determined, the second screw is re-screwed. In this case, the top cover and the bottom cover get close to each other and clamp the pivot connection body. Under the action of the clamping force, the rotation of the pivot connection units is limited.\nD: Disclosed is a quick-change-type double-layer-piston three-dimensional cooled air cylinder, comprising an air cylinder top cover (1) and an upper-layer piston (2). The upper-layer piston (2) is arranged in the interior below the air cylinder top cover (1), a partition plate (3) is arranged below the upper-layer piston (2), a piston connection screw (4) is inserted in the partition plate (3) at the middle position, a lower-layer piston (5) is arranged below the partition plate (3), an air cylinder bottom cover (6) is arranged at an outer end of the bottom of the lower-layer piston (5), an air cylinder rotary fixing plate assembly (7) is arranged at the bottom of the air cylinder bottom cover (6), air cylinder fixing screws (202) are arranged at four corners of the bottom of the air cylinder rotary fixing plate assembly (7), air cylinder fixing plate fixing screws (201) are circumferentially arranged at the middle of the air cylinder rotary fixing plate assembly (7), outer walls of the left sides and right sides of the air cylinder top cover (1) and the air cylinder bottom cover (6) are respectively provided with water path inlet/outlet connection ports (203) and air path inlet/outlet connection ports (204), an air cylinder top cover water path structure (205) is inserted in the air cylinder top cover (1), and an air cylinder bottom cover water path structure (206) is inserted in the air cylinder bottom cover (6). The air cylinder has a compact structure and a small size, and is easy to mount and dismount, air cylinder top cover water paths and bottom cover water paths internally communicate to form a three-dimensional water cooling circulation system, a water path cooling plate is omitted, the height of a cylinder body is reduced, the optimal angle of a cylinder body assembly can be selected from a range of 360 degrees according to a mold structure and a hot nozzle, and angle adjustment is convenient and rapid.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a draw-bar box having the function of a seat, the draw-bar box comprising a box body (1), wherein the box body (1) is L-shaped, a bent portion (17) of the box body (1) is in the shape of a circular arc, and a side edge of the bent portion (17) of the box body (1) is rounded; and a grip portion (2) is provided at the upper end of each of two sides of the box body (1), and a pedal portion (3) is provided at the lower end of each of the two sides of the box body (1). A user can sit on the bent portion (17), the user's hands can be placed on the grip portions (2), and the user's feet are placed on the pedal portions (3). Such a design is ergonomic, making the user feel comfortable, and at the same time, since the bent portion (17) of the box body (1) is in the shape of a circular arc and the side edge of the bent portion (17) of the box body (1) is rounded, discomfort for the user's body due to sharp angles is thus avoided.\nA: A free-range poultry catcher, comprising a box (1), a trough (2) disposed inside the box (1) and used for containing feed, a connection passage (3) connected to the box (1), a pushing assembly (4) for pushing poultry toward the connection passage (3), a speaker (5) disposed on an outer surface of the box (1), and a main controller (6). A sensor (7) for sensing the position of the poultry is further provided inside the box (1); an opening is provided in one side face of the box (1), and a movable door (11) is provided at the opening; the side face where the opening is located is defined as a first side face, two side faces adjacent to the first side face are defined as a second side face and a third side face, and the side face opposite to the first side face is defined as a fourth side; the movable door (11) is connected between the second side face and the third side face by means of a rotary shaft (12) and is driven to rotate by a first driving member (13) disposed on the third side face. By means of providing the speaker (5) outside the box (1) and a trough (2) inside the box (1), the poultry can be attracted into the box (1), driven into the connection passage (3) by means of the cooperation of the pushing assembly (4) and an one-way door (31), and placed in a cage, so that there is no need to perform catching manually, thereby reducing labor costs and improving the efficiency of catching; moreover, driving the poultry to go into the cage can avoid harm to the poultry.\nB: A cloth material coating device, comprising a box body (1), a liquid storage box (3), a lead screw (6), a coating roller (9), an extrusion roller (11), sliding rails (17), sliding sleeves (18), a first connecting rod (19), a second connecting rod (23), heating boxes (25) and a fan (27), wherein a cloth material unwinding roller (2) and a cloth winding roller (28) are arranged on the box body (1); the liquid storage box (3) is located inside the box body (1); a feeding hopper (4) is located above the box body (1); the lower end of the lead screw (6) is rotatably connected to a U-shaped rod (8); a discharge chute (10) is provided in the lower end of the liquid storage box (3); the extrusion roller (11) is located at the lower end of the coating roller (9), and a fixing block (14) is arranged on the extrusion roller (11); a sliding block (15) is arranged on the fixing block (14), and the lower end of the fixing block (14) is connected to the other end of a spring (16); two groups of sliding rails (17) are symmetrically arranged inside the box body (1); row brushes (22) are arranged at the lower ends of the sliding sleeves (18); the first connecting rod (19) is rotatably arranged on one sliding sleeve (18); an electric motor (20) is arranged in the box body (1); the other end of the first connecting rod (19) is rotatably connected to a rotating disc (21); a rotating shaft (24) is arranged in the box body (1); the second connecting rod (23) is rotatably arranged on the rotating shaft (24); and the heating boxes (25) are arranged at the right ends of the sliding rails (17). The device utilizes the coating roller and the row brushes, such that coatings are distributed more uniformly, thereby improving the quality and effect of the coatings.\nC: An apparatus for processing a flexible elastic coiled material, comprising a bottom plate (1), a lower material winding roller (4), an upper material winding roller (5), a motor (6), a rubber roller (11), a press roller (16), a movable plate (17), a coating barrel (18), a flattening plate (22), an air inlet pipe (23) and an air inlet fan (25); a box body (2) is fixedly provided on the bottom plate (1), the lower material winding roller (4) and the upper material winding roller (5) are rotatably provided on a side surface of the box body (2), and the motor (6) is fixedly provided on a side plate of the box body (2); the rubber roller (11) is rotatably provided between first support frames (10), and a rubber pipe (12) is provided on one side of the rubber roller (11); a brush (14) is provided on the outer surface of the rubber roller (11), and the press roller (16) is rotatably provided between second support frames (15) on two sides; the movable plate (17) is slidably provided inside the box body (2), the coating barrel (18) is fixedly provided on the movable plate (17), a hydraulic cylinder (19) is provided below the top of the box body (2), and a U-shaped plate (20) is provided at an output end of the hydraulic cylinder (19); a spraying device (21) is provided at the bottom of the coating barrel (18), and the flattening plate (22) is fixedly provided at the bottom of the movable plate (17); and the air inlet pipe (23) is provided inside the box body (2), a wind-up roller (26) is also rotatably provided on the bottom plate (1), and the wind-up roller (26) is located on a side surface of the box body (2).\nD: A multifunction suitcase comprising a suitcase body (100), casters (200) arranged at the bottom face of the suitcase body, a pull handle (300) arranged at the rear face of the suitcase body, a first platform (400), a first support leg (500), and a second support leg (600). The first support leg is detachably mounted on a side of the suitcase body. A first end of the first platform is rotatably connected to the first support leg. The second support leg is arranged at the rear face of the first platform and is rotatably connected to a second end of the first platform. The multifunction suitcase provides an additional feature as a piece of furniture while taking into consideration conventional luggage features of storage, organization, and convenient movement, allows for study, work, and leisure with ease in multiple scenarios, is structurally simple, and is convenient to use. By having the first support leg arranged at the side of the suitcase body, on the one hand, the stability of the entire suitcase body is increased to provide improved support against a pressure exerted by the first platform, while on the other hand, the first support leg can be easily removed from the side of the suitcase body for convenient formation of a standalone chair.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a structure of a suitcase (10), comprising a first case body (100) and a second case body (200), wherein one side of the first case body (100) has a first binding piece (120), the second case body (200) has a covering member (210) and a foldable member (220), with the foldable member (220) connected to the peripheral edge of the covering member (210); the foldable member (220) has respectively a second binding piece (221) and a third binding piece (222), with the second binding piece (221) being close to the first case body (100) and the third binding piece (222) being close to the covering member (210); and the first binding piece (120) is selectively connectable to the second binding piece (221) or the third binding piece (222) respectively, so as to have a use position and a collapsed storage position, thereby allowing the thickness of the suitcase (10) to be reduced for collapsed storage thereof.\nA: Disclosed is a suitcase capable of expanding a carrying space, comprising a case body (1) and a wheel seat (2). The case body (1) has a telescopic tension rod (10) on one side thereof. The wheel seat includes two tracks (20) disposed in parallel, two connecting rods (30) respectively bonded to two ends of the two tracks (20), a plurality of wheels (40) disposed in the two tracks (20), and a positioning device (50) disposed in one of the tracks (20). Each track (20) comprises a middle track (21) capable of being fixed on a bottom face of the case body (1), and an upper track (23) and a lower track (22) respectively slidably embedded into an upper side face and a lower side face of the middle track (21). The upper track (23) and the lower track (22) can be retracted or extended on the middle track (21) to enable the middle track (21) to be in a retracted state or an extended state. The two connecting rods (30) are respectively bonded to the outer ends of the upper tracks (23) of the two tracks (20) and the outer ends of the lower tracks (22) of the two tracks (20). The positioning device (50) can position the two tracks (20) in the retracted state or the extended state. By means of the above-mentioned structure, the suitcase can greatly enhance the carrying capacity and have a better carrying stability.\nB: A pin inserter (100). The pin inserter (100) is used for mounting a first connection member (200) in a mounting hole (301) of a second connection member (300). The pin inserter (100) comprises a feeding mechanism (10), a bearing mechanism (20), a removal mechanism (30), and a pressing mechanism (40). A feeding port (1422) is formed in the feeding mechanism (10), and the feeding mechanism (10) is used for conveying the first connection member (200) to the feeding port (1422). The bearing mechanism (20) is used for bearing the second connection member (300). The removal mechanism (30) is used for moving the first connection member (200) located at the feeding port (1422) in a first direction, so as to align the first connection member (200) with the mounting hole (301). The pressing mechanism (40) is used for pressing the first connection member (200) into the mounting hole (301) in a second direction that is perpendicular to the first direction. The pin inserter (100) conveys the first connection member (200) by using the feeding mechanism (10), and bears the second connection member (300) by using the bearing mechanism (20), and presses the first connection member (200) into the second connection member (300) in aligned fashion by using the removal mechanism (30) and the pressing mechanism (40) without manually mounting the first connection member (200) in alignment with the mounting hole (301). Therefore, the difficulty of operation is relatively small, and the efficiency is high.\nC: A power assembly (100) and an unmanned aerial vehicle (200). The power assembly (100) comprises a first connector (10) and a second connector (20) combined with the first connector (10), wherein the first connector (10) is provided with a first combining member (12), the second connector (20) is provided with a second combining member (22), at least one of the first combining member (12) and the second combining member (22) can be elastically deformed, and the second combining member (22) is combined with the first combining member (12).\nD: Disclosed are a frame assembly (120) and a display device (100). The frame assembly (120) comprises a back plate (121), a first frame (123) and a fixed assembly (127), wherein the back plate (121) comprises at least one side edge (121a), the side edge (121a) having an extension direction (D1); the first frame (123) is combined with the back plate (121); and the fixed assembly (127) comprises at least one first combination structure (127a), at least one second combination structure (127b) and a connector (127c), the first combination structure (127a) being provided on the side edge (121a) of the back plate (121), the second combination structure (127b) being provided on the side edge (123a) of the first frame (123), and the connector (127d) penetrating in the extension direction (D1) and being combined with the first combination structure (127a) and the second combination structure (127b).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an integrated automatic unfolding/folding stair-climbing trolley suitcase, comprising a case body. The bottom of the case body is provided with universal wheels; a telescopic pull rod is provided on one side of the case body; the bottom of a slide plate is provided with a one-way wheel; an inner support is separately connected to the telescopic pull rod and the case body; limiting connecting rods on left and right sides are movably connected to the inner support by means of a first connecting rod and are movably connected to the slide plate by means of a second connecting rod; torsion spring connecting rods on the left and right sides are movably connected to the inner support by means of a third connecting rod and are movably connected to the slide plate by means of a fourth connecting rod; a double rocker mechanism is formed between the limiting connecting rods, the case body, the torsion spring connecting rods, and the slide plate; an elastic device has one end connected to the inner support and the other end connected to the fourth connecting rod; and a shock absorbing device is provided between the slide plate and the inner support. In the present invention, the slide plate can be automatic unfolded or folded to assist climbing stairs, and has shock absorbing and cushioning devices, thereby not only preventing damage to the case body itself or the fragile items therein, but also greatly reducing the noise and vibration produced during climbing stairs.\nA: Disclosed in the present utility model is a textile scrap recycling device for textiles. The textile scrap recycling device comprises a crushing box body. The bottom part of the crushing box body is connected to a shock-absorbing plate. A shock-absorbing spring is disposed at the interior of the shock-absorbing plate. A placement plate is connected to the bottom part of the shock-absorbing plate. One side of an inner wall of the placement plate is provided with a friction plate. A drive motor is mounted at the bottom part of an inner wall of the crushing box body, and an output end of the drive motor is connected to a first rotating shaft. An outer wall of the first rotating shaft is connected to a stirring rod. An outer wall of the placement plate is connected to a water tank, and an inner wall of the water tank is connected to a pipe. One end of the pipe is connected to a water pump, and the other end of the pipe passes through the crushing box body. When the textile scrap recycling device for textiles is operated, by means of configuring the placement plate, the shock-absorbing plate disposed at the bottom part of the placement plate reduces the vibration generated by the crushing box body, and the friction plates on both sides reduce the friction from the shaking of the crushing box body on the placement plate, thereby increasing the service life of the device and meeting the usage requirements of individuals.\nB: The present invention relates to a luggage case with a charging device, comprising a case body, a trolley handle frame mounted on the case body, and a travelling wheel mechanism mounted at the bottom of the case body. The trolley handle frame is provided with telescopic trolley handle used for dragging the case body; the trolley handle frame is provided with a charger accommodating cavity located in the middle of the trolley handle and used for placing a charging device; the upper part of the charger accommodating cavity is provided with an opening; sliding slots are provided at two sides of the opening; sliding covers used for covering the opening are slidably mounted in the sliding slots. In t present invention, the independent storage of the external charging device facilitates taking the charging device at any time, and the configuration of the sliding covers makes the charging device not easily fall off; by configuring a spring, the charging device can be popped out; moreover, the charger accommodating cavity can be adapted to charging devices of different specifications; the specification of the charging device is in direct proportion to the compression deformation of the spring; the larger the charging device, the larger extent the spring is compressed to, and the smaller the charging device, the smaller extent the spring is compressed to.\nC: Disclosed is an injection mold with a buffering protection function, the injection mold comprising a base. A second air cylinder is fixedly installed at the middle end of the top of the base, and supporting plates are fixedly installed at both the left and right ends of the top of the base; a fixed plate is fixedly installed at the tops of the supporting plates; a sliding plate is fixedly installed at the top of the second air cylinder; and a box is fixedly installed at the top of the sliding plate. The sliding plate is driven by the second air cylinder to move upwards, the sliding plate drives the box to move upwards while the sliding plate moving upwards, and injection-molded materials fall into an inner cavity of a material receiving box; and at this time, a first spring deforms due to the influence of force, the first spring drives a connecting rod to press downwards while the first spring is compressed downwards, the connecting rod drives a sliding sleeve to slide to the outside, and the sliding sleeve compresses a second spring while the sliding sleeve is sliding, such that damping and buffering effects are achieved, the materials are prevented from being broken after a fall, and the problem of an existing injection mold having no buffering protection function and being inconvenient for people to use is solved.\nD: A carrying frame of a testing wave recorder used for a wind power generator, comprising a casing (1), an accommodating cavity (102) being provided in the casing (1), a first pressing plate (2) being connected to the bottom wall of the accommodating cavity (102), a first connecting rod (203) being fixedly connected to the bottom of the first pressing plate (2), the first connecting rod (203) being connected to two symmetrical second connecting rods (205) by means of a pin shaft, the second connecting rods (205) being rotatably connected to the inner wall of the casing (1) by means of first supporting seats (2051), one end of each second connecting rod (205) away from the first connecting rod (203) being connected to a third connecting rod (206) by means of a pin shaft, the upper end of the third connecting rod (206) being connected to a first air pressure mechanism, an output end of the first air pressure mechanism being connected to a fourth connecting rod (304), the upper end of the fourth connecting rod (304) being connected to a fifth connecting rod (306) by means of a pin shaft, the fifth connecting rod (306) being rotatably connected to the inner wall of the casing (1) by means of a second supporting seat (3061), and the other end of the fifth connecting rod (306) being connected to a second air pressing mechanism. The carrying frame has a good fixing effect for the wave recorder, thereby avoiding damage to internal parts of the wave recorder during carrying.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA cushion compact core (100) and a cushion compact case having the cushion compact core (100). The cushion compact core (100) comprises a case body (1), a case cover (2), and a sealing ring (3); the sealing ring (3) comprises a ring base body (31), the ring base body (31) comprising a first part (311) located above an opening of the case body (1), and a second part (312) located around the periphery of the first part (311); the sealing ring (3) further comprises a ring part (32) covering the periphery of the second part (312); both the second part (312) and the ring part (32) are located in an accommodating groove (11); the ring base body (31) is made of a material on which volatiles are not easy to keep, and the ring part (32) is made of an elastic material being able to elastically deform. The sealing ring (3) can cooperate with the case cover (2), when the case cover (2) covers the case body (1), to achieve sealing, and the case cover (2) can be integrally formed using a conventional PP material, without the need of designing complex molds and molding processes for manufacturing same, greatly reducing costs, and improving the sealing performance of the cushion compact core (100).\nA: A simple air cushion powder container, comprising an outer container assembly (1) and an inner plate assembly (2) constructed using a rigid plastic material. The inner plate assembly (2) comprises an insert (20) and an inner plate (21). The insert (20) can be sealingly connected to an opening side of the inner plate (21). The insert (20) and inner plate (21) can both be provided within the outer container assembly (1). The insert (20) is an assembly of a first insert (201) and a second insert (202). A first airtight edge ring (2013) and second airtight edge ring (2023) are opposingly provided on the first insert (201) and the second insert (202). At least one of a plurality of snap fit surfaces between upper sides of the first airtight edge ring (2013), the second airtight edge ring (2023), and a second body (2020) is tightly coated with a sealant layer (22) constructed using a soft plastic material, providing a good sealing and closing effect between the first insert (201) and the second insert (202). A plurality of airtight sealing strips (23) are provided on an inner side wall of the second body (2020) of the second insert (202), greatly improving a sealing and closing effect between the second body (2020) and the inner plate (21). The double airtight sealing design optimizes the airtight sealing effect of the inner plate assembly (2) and can ensure the quality of a cosmetic material in the inner plate (21) for an extended period of time.\nB: Disclosed is a device for adding water into milk powder, comprising a milk bottle (1) and a milk powder box (2), wherein the milk powder box (2) comprises a box body component (20) and a box bottom (30), the box body component (20) comprises a box body (21) and a box body connection part (22), the box body (21) comprises a box body base (211) and a first sealing part (212) formed integrally with the box body base (211), an upper part of the box body base (211) is cooperatively connected to a nipple, a lower part of the box body base (211) is cooperatively connected to an upper part of the box body connection part (22), and a lower part of the box body connection part (22) is cooperatively connected to the milk bottle (1); the box bottom (30) is sheathed on a bottle mouth of the milk bottle (1), with an annular belt of an outer ring of the box bottom (30) being provided with a leak hole (327), and the box bottom (30) comprises a box bottom base (31) and a second sealing part (32) integrally formed with the box bottom base (31); and the box body (21) is movably connected to the box body connection part (22) and can move relatively longitudinally to form a first operation position which has a milk powder placing cavity isolated, in a sealed manner, from an inner cavity of the milk bottle (1), and a second operation position which has a milk powder channel isolated from the outside in a sealed manner for adding water into the milk powder. The device for adding water into milk powder has a simplified structure and improved reliability and the durability of the sealing members.\nC: The present application relates to a case and a mobile terminal. The case comprises: a case cover (100), which comprises a covering part (111) and an extending part (112); a case body (200), a cavity (211) having an opening (210) being provided inside the case body (200), the case cover (100) being rotatably connected to the case body (200) so that the covering part (111) can open or close the opening (210), the extending part (112) extending from a rotary connection part (300) of the case cover (100) and the case body (200), and at least a part of the extending part (112) extending into the cavity body (211), and the extending part (112) and the covering part (111) move synchronously; a first magnetic member (11), at least a part of the first magnetic member (11) being provided on the extending part (112); and a second magnetic member (12), provided in the cavity (211) of the case body (200) and located outside a rotary track of the extending part (112). In a process that the case cover (100) and the case body (200) are switched from a closed state to an opening state, when the covering part (111) and the case body (200) are opened at a certain angle, the magnetic field force between the first magnetic member (11) and the second magnetic member (12) drives the case cover (100) and the case body (200) to open.\nD: Provided is an environmentally friendly portable sharp instrument box, comprising a box body (1) and a box cover (2), wherein external threads (100) are provided at the outer edge of an opening end of the box body (1); the box cover (2) is provided with an annular portion (21) with an L-shaped section, and internal threads (210) matching the external threads (100) are arranged on the inner edge of a vertical section of the annular portion (21); the box body (1) is further provided with an annular groove (11), and the bottom end of the box cover (2) is in threaded connection with the annular groove (11); a feeding port (22) is provided on the box cover (2); and two semicircular pressing blocks (221) are arranged at the feeding port (22) of the box cover (2), and two first sliding grooves (2210) for allowing the semicircular pressing blocks (221) to slide are provided on the box cover (2). When sharp instruments are discarded into the sharp instrument box, one of the semicircular pressing blocks can be pulled, so that part of the feeding port on the box cover is opened, if the sharp instruments are thought to be too long, the semicircular pressing blocks can be loosened, and under the action of first springs, cutting blades at a semicircular notch on the semicircular pressing blocks are used for cutting the sharp instruments, so that the space utilization rate in the sharp instrument box can be improved in a covert manner.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a toothbrush, which comprises a brush handle (10) and a brush head (20). The brush handle (10) comprises a grab handle (11) and a connecting shaft (12) connected to one end of the grab handle (11). The brush head (20) is provided with a connecting cavity (21); the connecting shaft (12) is used for being inserted into the connecting cavity (21) and the connecting shaft (12) is used for being connected to the brush head (20) in a clamped manner. The connecting shaft (12) is provided with a clamping groove (121); the brush head (20) is provided with an elastic clamping member (22) arranged on the cavity wall of the connecting cavity (21); the elastic clamping member (22) can match the clamping groove (121) in a clamped manner; or the clamping groove (121) is arranged in the cavity wall of the connecting cavity (21), the connecting shaft (12) is provided with the elastic clamping member (22), and the elastic clamping member (22) can match the clamping groove (121) in a clamped manner.\nA: A bottle cap capable of being opened by one press, comprising a bottle mouth (11) and a bottle cap (1), and further comprising a positioning ring (3), a fixing ring (10), and an oval elastic snap ring (8). A slot (13) is provided between the positioning ring (3) and the fixing ring (10); the two major axis ends of the elastic snap ring (8) are located in the slot (13); either of the two major axis ends of the elastic snap ring (8) is provided with a press piece (7); a groove (12) is circumferentially formed on the side wall of the bottle mouth (11) at a position corresponding to the elastic snap ring (8); the two minor axis ends of the elastic snap ring (8) are located in the groove (12) to lock the connection of the bottle cap (1) to the bottle mouth (11), and are configured to stretch as the press piece (7) is pressed, so as to disengage from the groove (12) and enter the slot (13), thereby unlocking the connection of the bottle cap (1) to the bottle mouth (11).\nB: Disclosed are a connector applied on a ring and a ring of a combined structure, relating to the field of jewellery. The ring of a combined structure comprises a finger ring, a decorative part and a connector, wherein the connector comprises a clamping seat (1) used for fixedly connecting the finger ring and a clamping head (2) used for fixedly connecting the decorative part; the clamping seat (1) and the clamping head (2) are cooperatively clamped; the clamping head (2) comprises a cylindrical main body (21), and a clamping block (22) is provided on the cylindrical main body; and the clamping seat (1) comprises a housing (11) and an elastic clamping ring (12) provided in the housing (11). The clamping head (2) is inserted into a notch (112) via the clamping block (22) and contacts a positioning groove (123) on the elastic clamping ring (12). The clamping head (2) is rotated, and the clamping block (22) drives the positioning groove (123) and thus drives the elastic clamping ring (12) to rotate. An elastic clamping member (122) is gradually compressed in the rotation process, when rotating to a certain position, an elastic force generated after the elastic clamping member (122) is compressed firmly fastens and fixes the elastic clamping ring (12) in the housing (11) so that the clamping head (2) is fixed on the housing (11) and can be detached when rotating in the opposite direction. Different decorative parts can be exchanged and mounted on the clamping head (2) so as to realize free collocation and combination between the ring and the different decorative parts.\nC: Disclosed are a joining structure and a shaving device comprising the joining structure. The joining structure of the shaving device comprises a first joining component (10) and a second joining component (20), wherein the first joining component (10) is provided with a connection shaft (11), and the second joining component (20) is provided with a connection cavity (21); the shape of the connection shaft (11) matches the shape of the connection cavity (21), and can be connected to or separated from the connection cavity; at least two protruding buckles (30) extending in a protruded manner in a radial direction are provided on the connection shaft (11), and elastic sheet buckles (40) corresponding to the positions of the protruding buckles (30) are provided in the connection cavity (21); and when the connection shaft (11) is inserted into the connection cavity (21), each of the protruding buckles (30) forces the corresponding elastic sheet buckle (40) to deform until same is fastened with the elastic sheet buckle (40). The elastic sheet buckles (40) can maintain the required elastic force, and then can guarantee that the first joining component (10) and the second joining component (20) always maintain a stable connection state.\nD: A replaceable brush head (10) and a toothbrush with the replaceable brush head (10) , wherein the replaceable brush head (10) comprises a bristle seat (11, 11A, 11B), multiple bristles (12) and at least one brush head fixing member (13, 13A), the bristles (12) are arranged on the front side of the bristle seat (11, 11A, 11B), the brush head fixing members (13, 13A) are arranged on the bristle seat (11, 11A, 11B), and can be detachably combined with a brush handle (20) of the toothbrush, the toothbrush with the replaceable brush head (10) comprises the replaceable brush head (10) and the brush handle (20), the brush handle (20) is detachably connected to the replaceable brush head (10) through a handle connecting portion (22), with the replaceable brush head (10), when the bristles (12) on the replaceable brush head (10) gradually lose their cleaning ability due to long-term use, a user can detach the replaceable brush head (10) from the brush handle (20) and replace a new replaceable brush head (10) to achieve the purpose of continuously using the same brush handle (20), thereby saving the user's purchase cost.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a rocking chair, comprising a support frame (1). The support frame (1) is provided with a seat body (2). The seat body (2), at the approximate centre of gravity thereof, is rotatably connected to the support frame (1). A drive device (3) for driving the seat body (2) to turn is provided between one end or the middle of the seat body (2) and the support frame (1). The drive device (3) comprises a drive motor (30). A first rotating member (31) is fixed to a motor shaft of the drive motor (30), and the first rotating member (31) is pivoted with a drive assembly eccentrically connected with same so as to drive the seat body (2) to turn relative to the support frame (1). A locking device (4) is provided between the support frame (1) and the seat body (2) for locking or unlocking same. The locking device (4) comprises a turning position (401) and a locking position (402) provided on the support frame (1) or on the seat body (2), and the seat body (2) or the support frame (1) is provided with locking member (403), at least a part of the seat body (2), by means of same, starting to turn, at an angle, from the turning position (401) relative to the support frame (1) and then being locked and fitted with the locking position (402) to lock the seat body (2) onto the support frame (1). The rocking chair has a simple structure and is safe.\nA: A reverse shipbuilding jig frame structure, comprising a plurality of vertically arranged supports (1) and a support frame (2) connected to the plurality of supports (1), wherein the support frame (2) is horizontally arranged and is used for supporting a ship hull, and vertically arranged support rods (3) are connected to the supports (1); the supports (1) are provided with drive devices that drive the support rods (3) to move in a vertical direction; the drive devices comprise support blocks (4) fixed on the supports (1); connecting blocks (5) are detachably connected to upper surfaces of the support blocks (4); vertically arranged connecting cylinders (6) are rotatably connected to the connecting blocks (5); the support rods (3) vertically penetrate the connecting blocks (5) and the support blocks (4), and are threadedly connected in the connecting cylinders (6); and the drive devices further comprise driving mechanisms arranged on the supports (1) and driving the connecting cylinders (6) to rotate.\nB: Disclosed is a rocking chair for children, the rocking chair comprising a seat body (1), a supporting frame (2), a seat body limiting mechanism (3), a driving electric motor (5), a driving electric motor power output portion (6), and a rotating shaft (7). One end of the rotating shaft (7) is fixedly connected to the driving electric motor power output portion (6); the seat body (1) pivots around the other end of the rotating shaft (7); when the rotating shaft (7) rotates, the pivot point between the other end of the rotating shaft (7) and the seat body (1) moves relative to the fixed connection point between one end of the rotating shaft (7) and the driving electric motor power output portion (6) at a certain distance; the driving electric motor (5) and the driving electric motor power output portion (6) are arranged on a mounting box (8); the mounting box (8) is fixedly connected to the seat body (1); and the seat body limiting mechanism (3) can limit, when the driving electric motor (5) drives the rotating shaft (7), an included angle between the seat body (1) and the rotating shaft (7) to be kept within a set angle for forward and reverse rotation in a reciprocating manner. The rocking chair is simple in terms of structure, low in cost, large in terms of swing amplitude, stable in terms of seat body and capable of carrying out two different swing manners at the same time.\nC: A mounting support for a height-adjustable table, comprising a support frame assembly (1) and two groups of upright post assemblies (2) rotatably provided on left and right sides of the support frame assembly (1), respectively, the two groups of upright post assemblies (2) both being provided with a locking device (3) capable of locking or unlocking the support frame assembly (1). When an upright post support leg (16) needs to be stored, a telescopic upright post support leg (16) is first retracted, then unlocking projection portions (13) are pressed inwards by hand, latching boards (7) are subjected to a force and then compress a locking spring (9) inwards, locking projection portions (11) move inwards and are disengaged from locking slots (10), the locking device (3) is unlocked, then an upright post mounting plate (15) is turned downwards, and the upright post mounting plate (15) drives the upright post support leg (16) to be retracted right below the support frame assembly (1); when the upright post support leg (16) needs to be unfolded, the upright post mounting plate (15) is turned upwards, and the upright post mounting plate (15) drives the upright post support leg (16) to be unfolded; and when the locking projection portions (11) move to the locking slots (10), the locking device (3) performs locking, and the upright post support leg (16) securely supports the support frame assembly (1). The operation is easy and the mounting efficiency is high.\nD: A child car seat locking device, for coordinating with a lock rod (9) on a car seat to connect a child car seat to the car seat; the locking device comprises a mounting rack (1), and a locking piece (2) rotatably connected to the mounting rack (1) via a first shaft (7); a lock slot (11) for accommodating the lock rod (9) is formed on the mounting rack (1), a lock hook (23) for hooking on the lock rod (9) is formed on the locking piece (2) so that the lock rod (9) is locked in the lock slot (11); the locking device further comprises a button (4) and a stop block (3) moving in the length direction of the mounting rack (1); the button (4) is provided with a drive pin (41) thereon; a drive slot (21) is formed on the locking piece (2); the drive pin (41) is movably inserted in the drive slot (21), and the movement of the button (4)drives the locking piece (2) to rotate around the first shaft (7); the stop block (3) has two operating positions: at a first operating position, the stop block (3) presses against the lock hook (23) or the locking piece (2) to allow the lock hook (23) to deflect from the lock slot (11), and the lock rod (9) inserted into the lock slot (11) pushes the stop block (3) away from the first operating position, so that the stop block (3) moves to a second operating position to release the locking piece (2); and the locking piece (2) rotates to the lock hook (23) and reaches a position corresponding to the lock slot (11), so as to hook the lock rod (9).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn infant bed comprises a first bottom board (1), a second bottom board (2), a first side board (3), a second side board (4), a third side board (5), a first guardrail (7), a second guardrail (8), a first bed board (9), a second bed board (10), a shelf board (11), a rack shaft (12), and a separation board (13). The components of the infant bed can be disassembled and reassembled into a study desk, a closet and a shelf, thereby implementing various use functions of an infant bed, prolongs the service life of an infant bed, and reducing the domestic cost.\nA: A rehabilitation massage bed comprising ironic balls (1), a first bed board (3), a second bed board (4), a magnetic rod (5), a third bed board (6), a controller (7), and a massage bed body (9). The first bed board, the second bed board, the third bed board, and the controller are all provided inside the massage bed body; the first bed board is provided above the second bed board; the second bed board is provided above the third bed board; a plurality of round holes are formed in the first bed board, and an ironic ball is provided in each round hole; the magnetic rod is provided between the second bed board and the third bed board; the controller is electrically connected to the magnetic rod and is used for controlling the magnetic rod to generate a magnetic force and move on the third bed board. The massage bed changes the direction of a magnetic force applied to the ironic balls by means of the movement of the magnetic rod, thereby driving the ironic balls to rotate, so as to massage a user. Because there is no circuit connection structure between the magnetic rod and the ironic balls, the structural complexity of the massage bed is reduced, and the service life of the massage bed is prolonged.\nB: Provide is a single-motor electrically powered bed, the single-motor electrically powered bed comprising: a bed board (1), a frame (2), a slide assembly (3), a first connecting-rod mechanism (4), and a drive assembly (5); the bed board (1) comprises: a first bed board (11) and a second bed board (12), one end of the first bed board (11) being hingedly connected to one end of the second bed board (12); the second bed board (12) is slidably connected to the frame (2) by means of the slide component (3), the two ends of the first connecting-rod mechanism (4) are hingedly connected to the first bed board (11) and the frame (2), respectively, and the first bed board (11) can be raised and lowered by means of the drive assembly (5). The single-motor electrically powered bed needs only one drive assembly (5) to drive all of the bed boards (1) to move, adjust the position and height of the human body, and achieve the lifting and lowering function of the electrically powered bed, and saves costs and reduces the volume and quality of the electrically powered bed; the human body follows the movement of the bed board (1), moving closer to one end of the bed body, maintaining a straight horizontal distance between the human body and the object it is facing.\nC: An infant bed comprises: an upper fencing frame (1) and a lower fencing frame (2), support fames being disposed at right and left sides of the upper fencing frame (1) and the lower fencing frame (2), the support frame comprising a vertical rod (3), an upper end of the vertical rod (3) being detachably connected to the upper fencing frame, a middle portion of the vertical rod (3) being detachably connected to the lower fencing frame (2) by a connection part (4), a bottom portion of the vertical rod (3) being connected to a swinging rod (5), a detachable middle fencing frame or bed plate (6) being disposed between the upper fencing frame (1) and the lower fencing frame (2), and a changing station (7) used to change diapers for babies being placed on the upper fending frame (1). The infant bed is of a proper structure, and is convenient to fold, store, and carry. Moreover, the infant bed can be used as a children shaker when the bed plate is placed on the middle fending frame, and when the middle fending frame is detached and a bottom plate is placed on the lower fending frame, the infant bed becomes a place where children plays.\nD: A foldable ultra-light steel prefabricated house. A bottom board (1) is connected to a house body (2); the house body (2) comprises a first side board (3), a second side board (4), a third side board (5), and a fourth side board (6); the first side board (3) and the third side board (5) are structurally symmetrical; the second side board (4) and the fourth side board (6) are structurally symmetrical; the first side board (3) is formed by connecting a first wall board (7) to a first roof board (8); the second side board (4) is formed by connecting a second wall board (9) to a second roof board (10); the second wall board (9) comprises a second upper wall board (11) and a second lower wall board (12) that are hingedly connected; the bottom board (1) consists of a first bottom board (13) and a second bottom board (14) of the same size; the first bottom board (13) is hingedly connected to the second side board (4); the second roof board (10) and the second upper wall board (11) are hingedly rotated to form an upper foldable board (15) in the same plane; the second lower wall board (12) and the first bottom board (13) are hingedly rotated to form a lower foldable board (16) in the same plane; the upper foldable board (15) and the lower foldable board (16) are the same in shape and size. The prefabricated house does not need to be disassembled, can be folded, and occupies a small space after being folded.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA height-adjustable crib, comprising a frame device (100) and a crib body (200) mounted on the frame device (100). The frame device (100) comprises two support side plates (110) oppositely arranged at an interval, a lifting mechanism (120), and a lifting control mechanism (130). A mounting position where the crib body (200) is positioned is defined between the two support side plates (110). The lifting mechanism (120) comprises a first support frame (121) and a second support frame (122) that intersect each other and are connected by means of a rotational shaft at the intersection. The support side plate (110) comprises a main body (113), a first connection part (111) and a second connection part (112) that are connected onto the main body (113) in relatively rotatable fashion, and an elastic member (114) connected between the first connection part (111) and the second connection part (112). The lifting control mechanism (130) comprises a locking assembly (131) mounted on the first connection part (111) and a locking engagement member (132) mounted on the second connection part (112). The crib is height-adjustable and is simple to operate.\nA: A display screen and an angle-adjusting device (100) thereof. The angle-adjusting device (100) comprises a first base (110), a first support connecting rod (120), a first linkage gear (130), a second base (140), a second support connecting rod (150) and a second linkage gear (160). One end of the first support connecting rod (120) is rotatably connected to the first base (110). The first linkage gear (130) comprises a first connecting part (132) and a first gear meshing part (134) arranged on the first connecting part (132), with one end of the first connecting part (132) being rotatably connected to the first base (110). The second support connecting rod (150) is rotatably connected to the first support connecting rod (120), with one end of the second support connecting rod (150) being rotatably connected to the other end of the first connecting part (132), and the other end of the second support connecting rod (150) being rotatably connected to the second base (140). The second linkage gear (160) comprises a second connecting part (162) and a second gear meshing part (164) arranged on the second connecting part (162), the second connecting part (162) being rotatably connected to the other end of the first support connecting rod (120). An adjusting process for the display screen is convenient and rapid, and angle adjustment of the display screen can be operated with good flexibility and uniformity.\nB: A spacing adjustment device (130) used for adjusting the spacing between a first connection portion (110) and a second connection portion (120) of a head massager comprises a surface cover assembly (140) arranged at the joint of the first connection portion (110) and the second connection portion (120) and a drive mechanism mounted on the surface cover assembly (140). The drive mechanism comprises a roller lock member (150) rotatably arranged on the surface cover assembly (140) and a first roller groove portion (160) arranged on the first connection portion (110). The roller lock member (150) is provided with a first roller column (151). The axis of the first roller column (151) is arranged in parallel with the axis of rotation of the roller lock member (150). The first roller groove portion (160) is provided with multiple first roller grooves (161) fitting the first roller column (151). When the roller lock member (150) is rotated, since the first roller column (151) is eccentric relative to the axis of rotation, the first roller column (151) can push the first roller groove (161), to drive the first connection portion (110) to move relative to the surface cover assembly (140), so as to adjust the distance between the first connection portion (110) and the second connection portion (120), thereby eliminating the defects of the adjustment mechanisms in the prior art such as the difficulty in adjustment and the complexity in structure. The structure is simple and reliable, and the operation is convenient.\nC: An infant bed, comprising a bed body (10) and two supporting units symmetrically provided on the bed body (10). The supporting units comprise lifting/lowering components (30) and support frame components (20). The lifting/lowering components (30) comprise hollow fixing bases (31) provided on the support frame components (20) and a lifting/lowering mechanism (32). The fixing bases (31) are provided on the surface thereof facing the bed body (10) with multiple vertically arranged engaging holes (311). The lifting mechanism (32) comprises handles (321), hollow housings (322), traction wires (323), first springs (324), traction elements (325) second springs (326), and engaging fittings (327). The traction wires (323) are connected between the handles (321) and the traction elements (325). The first springs (324) are sleeved on the end of the traction wires (323) in proximity to the traction elements (325) and are abutted at either end between the traction elements (325) and the housings (322). The traction elements (325) are provided with first inclined surfaces (3251) in the direction of the traction wires (323). The housings (322) are provided with first through holes (3221). The engaging fittings (327) partially protrude the first through holes (3221) via the second springs (326) and are engaged with the engaging holes (311), and, the engaging fittings (327) are provided with second inclined surfaces matching the first inclined surfaces (3251).\nD: Disclosed are an arc adjustable mounting frame (10), a display structure and a display screen. The arc adjustable mounting frame (10) comprises a first support (110), a second support (120) and a connecting member (130); the first support (110) comprises a first supporting post (111) and a first connecting plate (112), the first connecting plate (112) is provided on the first supporting post (111), and the first connecting plate (112) is provided with a plurality of first connecting holes (113); the second support (120) comprises a second support post (121) and a second connecting plate (122), the second connecting plate (122) is connected to the second support post (121), and the second connection plate (122) is provided with a plurality of second connecting holes (123); the first connecting plate (112) and the second connecting plate (122) at least partially overlap, at least one first connecting hole (113) corresponds to at least one second connecting hole (123), and the connecting member (130) penetrates through the first connecting hole (113) and the corresponding second connecting hole (112).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are a smart rocking bed and control method thereof; the smart rocking bed comprises a support frame (10), a bed body (20), and a rocking-control device; a mounting position (100) is defined on the support frame (10); the bed body (20) is positioned on the mounting position (100) and is suspended on the support frame (10), and may rock with respect to the support frame (10); the rocking-control device comprises a pulse transformer mechanism (30) which generates electromagnetism when turned on and a magnet mechanism (40) fitted to the pulse transformer mechanism (30); the pulse transformer mechanism (30) is fixed on the mounting position (100); the magnet mechanism (40) is fixed on the bottom of the bed body (20), and may rock back and forth driven by the pulse transformer mechanism (30), thus driving the bed body (20) to rock with respect to the support frame (10). In the smart rocking bed, the pulse transformer speed-regulating energy is converted into mechanical energy and the rock travel when rocking may be intelligently measured and controlled; the invention also has a mute effect and is suitable for infants of different body weights and ages; it facilitates the peaceful sleep of an infant, and the space for the infant to move around is large, making the invention advantageous to the healthy physical and mental development of the infant and reducing the occurrence of bowed legs due to the infant being held for long periods of time.\nA: A simulated organ and a control method therefor, the simulated organ comprising a main body bracket, a drive assembly and a flexible sleeve. The drive assembly comprises a drive mechanism and a telescopic linkage rod mechanism; the drive mechanism is provided with a swinging arm which outputs a swinging motion, and the swinging arm is provided so as to swing about a fulcrum. The telescopic linkage rod mechanism is mounted on the swinging arm, and the swinging motion of the swinging arm drives the telescopic movement of the telescopic linkage rod mechanism. The telescopic linkage rod mechanism comprises at least one cross-linkage rod set, each cross-linkage rod set comprising two linkage rods, the two linkage rods being crossingly provided and hinged at an intersection. The drive mechanism outputs a swinging motion by means of the swinging arm, the swinging motion cooperating with the cross-linkage rod set to achieve a telescopic function well, while the swinging of the swinging arm further drives the telescopic linkage rod mechanism to swing in the radial direction of the flexible sleeve, thereby providing users with an enriched experience.\nB: The present invention provides a baby rocking bassinet. The baby rocking bassinet comprises a bed compartment, at least two swinging rods, and a U-shaped base. The bed compartment is suspended in the base by means of the swinging rods; the bed compartment can swing along extending direction of a U-shaped space of the base; the bed compartment comprises: a bed board, a push rod motor, a motor cross bar, and bed rails having openings on the two ends; the motor cross bar is provided at the bottom of the bed rails; the extending direction of the motor cross bar is consistent with the extending direction of the U-shaped space of the base; the bottom of the head part of the bed board is pivotedly connected to one end of the push rod motor; the edge of the foot part of the bed board is pivotedly connected to the bed rail; the other end of the push rod motor is pivotedly connected to the motor cross bar. The baby rocking bassinet of the present invention can tilt the bed board to enable an infant to recline, so that posseting can be reduced, and in combination with swinging, the infant can quickly fall asleep while posseting is avoided, saving efforts of a caregiver.\nC: Disclosed is a suspension-line electrophoresis tank automatic workpiece swinging system. The system is used for pushing a workpiece that is suspended on a hook to swing to the left and to the right, and comprises a swing pushing mechanism and a control system. The swing pushing mechanism comprises: a first pushing plate for pushing the hook to swing to the right, and a second pushing plate for pushing the hook to swing to the left, wherein the first pushing plate and the second pushing plate are arranged opposite each other; and the first pushing plate is driven by a first cylinder, and the second pushing plate is driven by a second cylinder. The control system comprises a sensor installed on a front side of the swing pushing mechanism, wherein the sensor is used for sensing whether the workpiece is in place. In the present invention, a workpiece is automatically swung in a mechanical mode, thereby ensuring the uniformity of bubbles during a surface treatment of the workpiece and reducing the amount of bubbles. A mechanical reciprocating motion makes the workpiece move stably; and there is no unhooking situation, and the situation where an electrophoretic paint sputters outwards does not occur.\nD: Disclosed are a power generation device by converting gravitational potential energy and kinetic energy and method thereof, the power generation device comprising: a wiggler (10), a driver (20), a power generation unit (30) and an energy storage auxiliary device (40). The wiggler (10) comprises a rail (11), a hammer (12) and a traction mechanism, wherein the rail (11) can generate a sliding slope by means of at repeated wiggling motion with one higher end and one lower end under the drive of the driver (20); the hammer (12), under the action of gravitation, repeatedly slides back and forth along the sliding slope in a longitudinal axis direction of the rail (11); and a rotating member (13) of the traction mechanism is driven to rotate by the kinetic energy generated by the sliding of the hammer (12). A kinetic energy input side of the power generation unit (30) can be in contact with the rotating member (13) so as to convert mechanical energy generated by the rotation of the rotating member (13) into electric energy. The energy storage auxiliary device (40) can accumulate kinetic energy generated by the wiggling motion of the rail (11), and then feed back to the wiggler (10), so as to reduce energy consumption by the driver (20) driving the wiggler (10), thereby realizing the target of generating power by using gravitational potential energy and kinetic energy.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a goods shelf, comprising a plurality of beams (2), a plurality of supporting parts (1) and at least one placing part (3). Each of the beams (2) is connected to the corresponding supporting part (1) via a connector, and on a side thereof has a placing surface (12) for placing the corresponding placing part (3). At least two opposing ends of the placing part (3) are provided on the placing surface (12) in the same plane of at least two corresponding beams (2). The plurality of beams (2) and the plurality of supporting parts (1) are profiles formed by extrusion and stretching of a mould.\nA: A glass substrate handling apparatus comprising a support frame (1) and a substrate holding frame (2). The substrate holding frame comprises a first support part (21), a second support part (22), and a sliding part (23). The first support part (21) is provided on the second support part (22) via the sliding part (23). Also, the first support part (21) is allowed to move relative to the second support part (22) between a first position and a second position along a first direction of the support frame under an action of the sliding part (23). When the first support part (21) is located at the first position, the entire first support part (21) is projected towards the outer side of the second support part (22). When the first support part (21) is located at the second position, the entire first support part (21) is located directly above the second support part (22). The present invention has the substrate holding frame configured as a telescopic structure, when handling a glass substrate on a handling apparatus platform, the need to extend the bottom part of the handling apparatus below the handling apparatus platform is obviated, and glass substrate handling is allowed by extending the substrate holding frame to a glass substrate placement position on the handling apparatus platform.\nB: A beam-column connection member (400), a building frame structure, and an installation method. The beam-column connection member (400) comprises an integrated beam-column connection member body (1), a vertical column insertion connector (2), and beam insertion connectors (3, 4); the beam insertion connector (3, 4) comprises a first support portion (22) directly supporting a lower wing plate of the horizontal beam, and a first fixing portion (5) disposed right above the first support portion (22), horizontally protruding along the side of the beam-column connection member body (1), and fixed to the web of the horizontal beam; the distance in the vertical direction between the first fixing portion (5) and the first support portion (22) is greater than the thickness of the lower wing plate of the horizontal beam, the width of the first fixing portion (5) in the vertical direction is smaller than the distance between two opposite faces of the two wing plates of the horizontal beam; and a stop portion (12) for stopping the end portion of the vertical column is further provided. An H-shaped or I-shaped horizontal beam has end portions that do not require processing, has many positions for connection and fixation, has stable and reliable connecting nodes, and has desirable strength and rigidity for connecting positions; the building frame structure can be conveniently mounted and only a few of working steps are involved.\nC: Disclosed is a vehicle front floor structure, an aluminum alloy extrusion molded part and a vehicle. The vehicle front floor structure comprises a left threshold (1), a right threshold (2) and a plurality of beams (3) arranged between the left threshold (1) and the right threshold (2), wherein each of the beams (3) comprises at least two first-type beams arranged at intervals, and the at least two first-type beams are both aluminum alloy extrusion molded parts and are configured to have different cross section shapes from each other, such that the amount of deformation of the left threshold (1) and/or the right threshold (2) when a vehicle is subject to a side collision complies with set requirements; and the set requirements comprise that a set distance is maintained between the deformed left threshold (1) and/or right threshold (2) and a vehicle component mounted and suspended on at least a part of the beams.\nD: Disclosed is an assembled-type cabinet comprising two upright frames (3), a top panel (1), a base panel (13), two side panels (2), a back panel (11), a folding fixing frame (10), and at least one drawer (6). The upright frames (3) each comprise two vertical posts (5) and several crossbeams (4) perpendicular to the vertical posts (5). The folding fixing frame (10) is connected to the two upright frames (3), respectively. The top panel (1) and the base panel (13) are fixed to the crossbeams (4) at the top part of two upright frames (3), respectively, and the two side panels (2) and the back panel (11) are fixed respectively between the top panel (1) and the base panel (13). Each drawer (6) is fixed to the side panels (2) by means of sliding rails. During the process of assembling either a solid wood cabinet or a chest of drawers, the assembled-type cabinet only requires a screw-driver and does not require an excessive number of other tools, meaning the cabinet can be quickly and easily assembled, achieving fast assembly results with a saving in time and labour. In addition, after assembly, the assembled-type cabinet has a relatively high structural strength and is not easy to deform, and the drawers can be conveniently pulled out or pushed in. Additionally, the inside of the drawers can form a relatively intact storage space, able to reduce the ingress of grime, meaning that items stored therein are cleaner.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA three-dimensional rotation demonstration LED lamp holder, comprising a base (1). The top of the base (1) is fixedly connected to a housing (2). The center of the top of the base (1) is fixedly connected to a rotation base (4). The top of the rotation base (4) is rotatably connected to a rotation lamp stand (5). The top of the rotation lamp stand (5) is fixedly connected to a rotating platform (6). A plurality of central LED color lamps (7) corresponding to the rotating platform (6) are mounted in the center of the top of the rotation base (4). A plurality of atmosphere lamps (8) are mounted on an inner side of the top of the housing (2). An outer ring gear (9) is provided at the bottom of an outer wall of the rotating platform (6). One side of an inner wall of the housing (2) is fixedly connected to a mounting bracket (10). According to the three-dimensional rotation demonstration LED lamp holder, by designing a simple rotation demonstration mechanism, the LED lamp holder can support and drive an ornament to rotate at a constant speed, and the overall display effect of the ornament is more attractive by irradiation of LEDs.\nA: An aluminum sheet machining apparatus capable of implementing stable clamping and rotation, comprising a base (1). Support posts (2) are fixedly mounted on the left and right sides of the base; a top plate (3) is fixedly mounted between the tops of the opposite sides of the support posts; a machining structure (4) having one end passing through the top plate and extending out of the bottom of the top plate is fixedly mounted at the top of the top plate; a rotating electric motor (5) is fixedly mounted at the top of the base; a coupling (6) is fixedly mounted at the top of the rotating electric motor; a connecting seat (7) is fixedly mounted at the top of the coupling; a workbench (8) is fixedly mounted at the top of the connecting seat; struts (9) are fixedly mounted on the left and right sides of the top of the base; the top of each strut is movably connected to an engagement rod (10) by means of a rotating shaft. The aluminum sheet machining apparatus capable of implementing stable clamping and rotation is simple in overall structure, achieves the purpose that the workbench on the aluminum sheet machining apparatus is rotatable, facilitates machining and punching of aluminum sheets at different parts, improves the machining efficiency and quality of the aluminum sheet, and is convenient to use.\nB: A warehouse storage rack label device, comprising a U-shaped element (1) and a label holder (2). A rotating base (3) is fixedly connected to one side of the U-shaped element (1); a round rod (4) is fixedly mounted on the rotating base (3); the label holder (2) has one side fixedly connected to two connection members (5), and the other side provided with an accommodation slot (6); a visual window (7) is fixedly mounted on the accommodation slot (6); an opening (8) communicated with the accommodation slot (6) is formed in the top of the label holder (2); a label card (9) is placed in the accommodation slot (6); a slide groove (10) is formed in the label holder (2); a pressing rod (11) is slidably mounted in the slide groove (10), and works in conjunction with the round rod (4) for adjusting the angle of the label holder (2); two mounting grooves (12) are formed in the other side of the label holder (2); and a disc (13) is rotatably mounted in each of the two mounting grooves (12) for counting goods. The warehouse rack label device facilitates replacement of the label card (9) when in use, and can adjust the fixing angle of the label device according to the height of each layer of a storage rack, such that a worker can check the label card (9), and real-time counting can be performed on the goods on a corresponding storage rack, thereby facilitating checking.\nC: A flat cable dynamic stability testing apparatus, belonging to the field of flat cable detection. The apparatus comprises a bottom platform (1), wherein the upper surface of the bottom platform (1) is fixedly connected to a testing platform (2); the top of the testing platform (2) is fixedly connected to a driving machine box (3); the inner bottom wall of the driving machine box (3) is fixedly connected to an electric motor support frame (4); an inner wall of the electric motor support frame (4) is fixedly connected to a driving electric motor (5); an output end of the driving electric motor (5) is connected to a driving gear (6) in a sleeved manner; the top of the driving gear (6) meshes with a driven gear (7); an inner wall of the driven gear (7) is provided with a rotating shaft (8) in an inserted manner; and one end of the rotating shaft (8) is fixedly connected to a rotating seat (9). The apparatus is provided with the driving electric motor (5), the driving gear (6), the driven gear (7), the rotating shaft (8), the rotating seat (9), a front end fixing plate (10), a front end fastening plate (11), a threaded rod (12), a rotating lever (13), an electric push rod (15) and a high-speed camera (17), such that an operator can conveniently obtain the torsional resistance of a flat cable and the maximum torque limit that the flat cable can bear. The design is simple and convenient to operate, and the test result is accurate and highly reliable.\nD: A display showcase for sale of electronic terminal devices, comprising a display showcase body (1) and support legs (5). The support legs (5) are arranged at four corners on the outer wall of the bottom of the display showcase body (1); a mounting opening is formed on the outer wall of the bottom of the display showcase body (1), and an electric motor (2) is fixedly connected onto the inner wall of the mounting opening; one end of an output shaft of the electric motor (2) is provided with a rotary disc (3), and hydraulic cylinders (6) distributed equidistantly in an annular configuration are fixedly connected onto the outer wall of the top of the rotary disc (3); one end of a piston of each hydraulic cylinder (6) is provided with a fixing mechanism; a cover mechanism is arranged inside the display showcase body (1). The display showcase allows for simple and convenient fixing and taking of a device to be displayed; in addition, the rotary disc (3) can drive devices to be displayed on a fixing seat (7) to rotate together to achieve 360° omnidirectional display; rollers (4) at the bottom of the rotary disc (3) can ensure the stability during rotation of the rotary disc (3), thereby effectively improving the display effect; and the display showcase cannot be opened from the outside, thereby effectively improving the anti-theft effect of the display showcase.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA guide system (20) and method for healthy water-drinking of a child are applied to a water-drinking apparatus (100). The water-drinking apparatus (100) comprises a cup body (1), a linear (3), and a base (2). A flexible display screen (11) and a fingerprint sensing film (12) are inlaid on the outer surface of the cup body (1), a water pressure sensor (30) is disposed at the bottom of the linear (3), and an infrared sensor (22) is disposed on the base (2). When sensing that the human body gets close to the water-drinking apparatus (100), the infrared sensor (22) displays a cartoon that a child is interested in on the flexible display screen (11), to draw the attention of the child under guardianship to touch the cup body (1) of the water-drinking apparatus (100) by hands. The fingerprint sensing film (12) recognizes the fingerprint on the cup body (1), and the water pressure sensor (30) measures the water pressure of the linear (3) to determine whether the child needs supplementation of water. When the child needs supplementation of water, an image improving the desire of the child for drinking water and the volume of water needing to be drunk are displayed on the flexible display screen (11), to guide the child to drink water in time. The system (20) and method can improve the desire of a child for drinking water, guide the child to drink water healthily, enhance the consciousness of drinking water of the child, and help the child to develop the habit of drinking water at regular time.\nA: A smart cup, comprising a cavity (1) for containing water. A pressure sensor (11), a processor (14) and a power module (15) are provided at the bottom of the cavity (1); a water level sensor (12) and a water quality detection device (13) are provided on the inner side wall of the cavity (1); the pressure sensor (11), the water level sensor (12), the water quality detection device (13) and the processor (14) are separately connected to the power module (15); the pressure sensor (11), the water level sensor (12) and the water quality detection device (13) are separately connected to the processor (14). The water quality detection device (13) is provided on the inner side wall of the cavity (1) of the smart cup and used for detecting the oxygen content of water in the cavity (1) so as to accurately detect the water quality; the pressure sensor (11) at the bottom of the cavity (1) of the smart cup and the water level sensor (12) on the inner side wall of the cavity (1) acquire related data and send the data to the processor (14) to cooperatively calculate the amount of water a user drinks. The smart cup has high intelligence.\nB: An automatic alarm system and method for use in monitoring child safety, comprising: when a child monitoring terminal (1) is activated into an operating mode, capturing a body image of a child via a camera device (11) of the child monitoring terminal (1) (step S11); detecting whether or not the body image comprises a specific feature (step S12); when the body image comprises the specific feature, activating a positioning unit (12) of the child monitoring terminal (1) to position geographic location information of the child (step S13); generating alarm information comprising the specific geographic location of the child and the body image comprising the specific feature (step S14); and automatically transmitting the alarm information to a monitoring center platform (2) of the police via a communication unit (13) of the child monitoring terminal (1) to alert the police. When the child is in an unsafe condition such as being lost, this accurately positions the specific location of the child, helps the child to transmit distress information as soon as possible, and allows the police to rescue the child as soon as possible.\nC: A mobile, radar-sensing child learning device, comprising a display screen (1) and a base (2), an upper side of the base (2) being provided with a chamber (9), the chamber (9) having disposed therein a cleaning mechanism (8), the cleaning mechanism (8) comprising a first electric motor (10) embedded in the chamber (9), an output end of the first electric motor (10) being provided with a shaft (11), the shaft (11) having provided thereon a second electric motor (12), an output end of the second electric motor (12) being provided with a cleaning brush (13), a lower side of the shaft (11) being provided with a water delivery tube (14), a lower end of the water delivery tube being provided with a mopping board (15), a lower side of the mopping board (15) being provided with a mopping cloth (16), the mopping board (15) having provided therein a cavity, a lower side of the cavity being provided with a water draining hole (24), and the base (2) having provided therein a water chamber (17), the water chamber (17) having provided therein a water pump (18). The mobile, radar-sensing child learning device not only has educational functionality, but also can improve a child's manual manipulative ability, trains the child's working ability, has multiple type of functions, and has strong usability.\nD: A paperless early education machine for children based on wireless transmission technology. The early education machine for children comprises a machine body (1), wherein a playing display screen (5) and a writing screen board (4) are arranged on a side surface of the middle portion of the machine body (1); the top of the machine body (1) is provided with an audio player (2) and a microphone (26); a control chip (7) is mounted inside the machine body (1); an early education interaction system is installed in the control chip (7); and the early education interaction system comprises a communication unit (10), a receiving conversion unit (11), a central processing module (12), an input module (13), a modeling unit (14) and a playing display unit (15). The paperless early education machine for children can perform interactive teaching, and perform data transmission by means of remote wireless transmission so as to update an education mode and resources in a timely manner; and a modeling unit (14) can replace characters or animated characters of interest to a child with animals in a video to realize interesting teaching, thereby improving the teaching quality.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA health-promoting pillow comprises a supine position portion (1) and two side position portions (2) respectively arranged at two opposite sides of the supine position portion (1). The supine position portion (1) comprises a protruding support stage (10) protruding front ends of the two side position portions (2). A first cushioning recess (11) is located at the periphery of the protruding support stage (10). The design improves quality of sleep of a user.\nA: Disclosed is an LED stand with a vertical vibration reducing function, comprising a main stand (7) provided on either side thereof with a boss (6), wherein the boss (6) is provided with a pin hole (2), the upper end of a side plate (5) is provided with a pin hole (2), and the main stand (7) is provided with two pin holes (2); the lower surface of the head of a pin (1) is welded onto the upper surface of the boss (6); the lower end of the main stand (7) is provided with two grooves (9), and the side plate (5) is arranged in the grooves (9); the main stand (7) is connected with the side plate (5) by the pin (1); an upper side spring (3) is arranged on an upper surface of the side plate (5), and a lower side spring (4) is arranged on a lower surface of the side plate (5); and the upper end of the main stand (7) is provided with three first mounting holes (8), and the lower end of the main stand (7) is provided with two second mounting holes (10). The stand has a simple manufacturing process and a low manufacturing cost, and can provide a buffer for LED lamps and prolong the service life of ceiling lamps.\nB: A front-back moving-type precise four-column discharging machine, comprising a rack (1). Connecting blocks (4) are provided on the left and right sides of the rack by means of two guide columns (2) and a punching oil cylinder (3). The two connecting blocks are respectively provided with punching pressure plate moving guide rails (5). A punching pressure plate (6) is slidably provided between the two connecting blocks by means of the punching pressure plate moving guide rails. Support bosses (61) are respectively provided on two sides of the punching pressure plate. The two sides of the punching pressure plate are supported on the punching pressure plate moving guide rails by means of the support bosses. The edges of the two support bosses are respectively positioned on the axes of the two guide columns. The two connecting blocks are respectively provided with support planes (41) matching the support bosses. Oil storage tanks (7) matching the punching oil cylinder are respectively provided on two sides of the rack.\nC: Disclosed is an anti-displacement fastener for the correction of an ingrown nail, the fastener comprising a fixing elastic piece (1) and a clamping elastic piece (2), wherein the clamping elastic piece (2) is clamped in the fixing elastic piece (1), and after the fixing elastic piece (1) and the clamping elastic piece (2) are assembled, one end of each that is away from the other is provided with an arc-shaped inwardly fastened correction hook (10); a supporting protrusion (3) is provided above an outer side of the fixing elastic piece (1), with the distance between an end face of the supporting protrusion (3) that is away from the fixing elastic piece (1), and the outer side of the fixing elastic piece (1) being greater than the thickness of the clamping elastic piece (2), a fastening elastic piece (4) is hinged to a hinge position (5) of the supporting protrusion (3), and the other end of the fastening elastic piece (4) is provided with a fastening interface that concaves inwardly toward the fastening elastic piece (4); and a terminal end of the fixing elastic piece (1) is further provided with an L-shaped clamping interface (8) perpendicular to the fixing elastic piece (1), and clamping protrusions (9) matching the L-shaped clamping interface (8) are distributed at an upper end of the clamping elastic piece (2) at equal intervals. The fastener for the correction of an ingrown nail has the beneficial effects of being small in size, lightweight, and being easy to mount and remove. Moreover, the fastener achieves multi-prevention of displacement, is stable for being worn and will not easily fall out, and is convenient for practical use. In addition, the manufacturing cost is low, and the structure is simple and easy to produce and manufacture.\nD: A desktop pillow, the desktop pillow comprising: a pillow body (1) which is a U-shaped air bag structure having a concave portion (11) that opens upward, the concave portion (11) penetrating the pillow body (1) in a front-rear direction; a height adjusting air bag (2), fixed at a lower portion of the pillow body (1), the height adjusting air bag (2) being a retractable pipe organ-like air bag and being capable of expanding or shrinking in a vertical direction; and a chest air cushion (3) which is an air bag structure fixed at a rear side edge of the bottom of the height adjusting air bag (2). Said desktop pillow may support the weight of a head, reduce pressure on the cervical vertebra of a user and adapt to the heights of different users, so that the users may obtain more comfortable sleeping postures. In addition, space for users to naturally place both arms and hands thereof during desktop sleep is provided, which avoids the occurrence of arm numbness caused by pressing on both arms during sleep. The pillow may also provide soft support for the chest, and the whole desktop pillow may be fixed, thereby improving the sleep quality of users.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA household two-speed multi-functional food processing machine comprises a container (4), a container cover (2, 3) and a power head (1). The power head (1) is connected to a transmission device of the food processing machine through a universal connection head (5) and a driving shaft (8). The transmission device comprises a common speed reduction transmission system (10), a high-speed transmission system (20) and a low-speed transmission system (30). The common speed reduction transmission system (10) is connected to the high-speed transmission system (20) and the low-speed transmission system (30). Final output of the high-speed transmission system (20) and final output of the low-speed transmission system (30) are coaxially assembled, and during use, one of the final output of the high-speed transmission system and the final output of the low-speed transmission system is selected for installing a high-speed drive shaft (20) or a low-speed drive shaft (30). The food processing machine can adapt to different requirements of different food processing accessories for the speed and the torque, and has the convenient operation and portable structure.\nA: A dual axis, horizontal, pure electric driving force system for use in vehicles, comprising: a first driving motor (1), a second driving motor (8) and a gearbox; an inner portion of the gearbox is provided therein with a first high-speed transmission gear train (3, 9) and a second low-speed transmission gear train (4, 12), which are connected to the first driving motor (1), and a third high-speed gear train (6, 17) and a fourth low-speed transmission gear train (5, 15), which are connected to the second driving motor (8); the power of the two driving motors (1, 8) is outputted either individually or in combination by means of different combinations of each of said gear trains. The dual axis, horizontal, pure electric driving force system for use in vehicles has a simple structure and may be easily arranged, while acceleration and climbing ability are high, shifting gears is smooth and uninterrupted power may be guaranteed such that power needed for driving while shifting gears is continuously generated; at the same time, kinetic energy which is generated while a vehicle is driven may be converted in part to electric energy when braking, saving electric energy loss in part, thus reducing battery costs and increasing the driving range of electric vehicles.\nB: A multifunctional food processor, relating to the technical field of kitchen appliances. The multifunctional food processor comprises a container (1), a top cover (3), and a drive component. A first working chamber (11) is provided in the container (1); a second working chamber (31) is provided in the top cover (3); the top cover (3) is matchedly provided on the container (1); the drive component comprises a drive rod; the drive rod extends downwards from the top cover (3); a food processing device is matchedly provided on the drive rod. The food processing device is a stirring device (7) or a cutting device (8) mounted in the container, and may be used for both stirring food and cutting up food. Moreover, the food processing device may be a cutter disc device. A device consisting of a food fixing device in the top cover (3) and the cutter disc device may be used for cutting food into slices and shreds. The present invention has multiple functions, is convenient to use, and can greatly reduce the space occupied and production and use costs.\nC: Provided are novel electric supporting legs, comprising a left supporting leg, a right supporting leg, a middle shaft for connecting the left supporting leg and the right supporting leg and an electric driving mechanism. The electric driving mechanism comprises an electric motor, a shell (6), a front swing plate (8) and a poking rod mechanism. An output shaft (51), an output shaft gear (5), an input shaft (25) and an input shaft multi-speed-ratio gear (2) are installed in the shell. An electric motor shaft is coupled to a bevel pinion (1). The bevel pinion meshes with conical teeth of the input shaft multi-speed-ratio gear. A high-speed transmission gear (3) and a low-speed duplicate gear assembly (4) are installed on the front swing plate. The poking rod mechanism makes the front swing plate swing left and right with the input shaft as a fulcrum, so that the output shaft gear is in drive connection with the input shaft multi-speed-ratio gear through the high-speed transmission gear or the low-speed duplicate gear assembly, and the electric motor shaft provides power for the output shaft at different speed ratios. The input shaft multi-speed-ratio gear and the low-speed duplicate gear assembly are manufactured through powder metallurgy and pressure casting. The electric supporting legs are rational in structure and save on labour when operating.\nD: A battery pole piece roller machine power transmission system, comprising a power mechanism and a transmission mechanism. The power mechanism is a power mechanism (10) having a transmission motor and a speed reducer integrated together. The transmission mechanism is the speed reducer (20). An output end of the power mechanism is connected to an input end of the transmission mechanism via coupling A (30). An output end of the transmission mechanism is connected to a transmission shaft of two rollers (40) of the battery pole piece roller machine via coupling B (50). The system divides the power mechanism and the transmission mechanism into two parts independent of each other, while the power mechanism itself is a structure having the transmission motor and the speed reducer integrated together, therefore, the battery pole piece roller machine power transmission system is capable of changing flexibly the output rotation and output torque of the entire transmission system by means of convenient replacement of power mechanisms having identical installation sizes but different motor powers and reduction ratios, thus adapting to a variety of requirements currently found in battery pole piece production technique.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA safety device for a food processor comprises a push cylinder (1), a receiving cup (3) fixedly connected to a cup cover (2), a main cup body (4), and a main device body (5). The receiving cup (3) is locked to the main cup body (4). A guiding push rib (11) is provided on the sidewall of the push cylinder (1). A guiding slide groove (31) is provided on the sidewall of the receiving cup (3). A safety push block (7) is sleeved inside the guiding slide groove (31). A safety push rod (8) is provided on the sidewall of the main cup body (4). After the push cylinder (4) is pushed inside the receiving cup (3) for a certain depth, that is, the push cylinder (1) completely covers the cup opening of the receiving cup (3), the safety push rod (8) is pushed downward and triggers a safety switch (6) of the main device body (5), and the motor inside the main device body (5) is started, thereby preventing a hand from entering the cup running at a high speed to get injured.\nA: An electromagnetic clutch for a safety protection device of a press machine comprises an upper case body (5) and a lower case body (6). An upper iron core (1) is disposed in the upper case body (5). The upper end of the upper iron core (1) passes out of the top surface of the upper case body (5). A coil (4) is sleeved on the upper iron core (1). A socket base (7) is disposed on a side wall of the upper case body (5). An aerial socket (8) connected to the coil (4) is disposed in the socket base (7). A T-shaped lower iron core (2) is disposed in the lower case body (6). The lower end of the lower iron core (2) passes out of the bottom surface of the lower case body (6). A pressure spring (3) is disposed between the T-shaped top end of the lower iron core (2) and the bottom surface of the lower case body (6). The pressure spring (3) is sleeved on the external surface of the lower iron core (2). Copper sheathing is omitted in the upper and lower case bodies of the electromagnetic clutch, thereby avoiding fixing the electromagnetic clutch to the body of the press machine, saving a plurality of mounting accessories, thereby reducing the cost of the product and facilitating the installation and maintenance of the product. When the upper and lower iron cores are bound, the electromagnetic clutch moves up and down as a whole, and when the upper and lower iron cores are separated, only the lower iron core moves downward, thereby prolonging the service life of the electromagnetic clutch.\nB: A milk foam kettle for heating, foaming and stirring liquid food, which comprises a cup body (1) and a base (2). A stirrer (3) and a positioning sleeve (16) are arranged on the cup body (1); a heater (5), a heat-transfer plate (18) and a fixed sleeve (21) are arranged on the base (2); the positioning sleeve (16) is sleeved in the fixed sleeve (21) on the base (2); a driving device (7) for driving the stirrer (3) to rotate is arranged under the heater (5); and a driving motor (8) is provided in the driving device (7). According to a magnetic force principle, the cup body (1) for containing liquid milk is fully separated from a working circuit for driving the stirrer (3), a heating device and the driving device (7); during use, the liquid milk is free from seeping into the base (2) to influence the circuit and a lubricant of the driving motor (8) cannot flow into the cup body (1) to contaminate the liquid milk as well, so that the milk foam kettle is hygienic and safe. Pole directions of a driving magnet (9) and a driven magnet (10) are both horizontally arranged, so that the space is saved; the stirrer (3) is driven by a magnetic force, thereby being hygienic and safe; and the stirrer (3) is only located in the cup body (1), so that the stirrer (3) can be more conveniently disassembled and cleaned.\nC: A multi-functional antimicrobial cup, comprising a cup body. The cup body comprises a cup bottom (1) and a cup wall (2) surrounding and enclosing the cup bottom (1). The cup wall (2) is detachably provided with a cup lid (3) thereon. An inner wall of the cup lid (3) is provided with a rubber ring (4) in contact with the cup wall (2). An antimicrobial part (5) is provided on an outer wall of the cup lid (3). The rubber ring (4) and the antimicrobial part (5) are both coated with an antimicrobial film (6) containing silver ions and tungsten ions. During use of the cup, the cup lid (3) covers the cup wall (2), such that while the antimicrobial film (6) on the rubber ring (4) on the inner wall of the cup lid (3) is in contact with the cup wall (2), an active substance in the antimicrobial film (6) rapidly sterilizes the cup wall (2), and the effect is prolonged to provide an antimicrobial effect to the cup body during use. When a user holds the antimicrobial part (5) on the cup lid (3) in their hands, the silver ions or tungsten ions in the antimicrobial film (6) on the antimicrobial part (5) quickly sterilizes the hands without leaving chemical residue, thereby providing convenient and safe use.\nD: A syringe, comprising: an outer sleeve (1), a guide-resistive ring (9) being arranged on the top part thereof; a pushing cylinder (2) movably arranged inside the outer sleeve (1), a pushing cylinder cavity being disposed inside the pushing cylinder (2); a sliding device (5) slidably arranged inside the pushing cylinder cavity; a locking base (3) detachably arranged on the sliding device (5); a needle tip (33) detachably mounted on the locking base (3); and a shaped liquid-proof ring (4) sleeved over the locking base (3) in an adjustable position, in order to clamp or release the locking base (3); a pushing part (20) arranged on the top end of the pushing cylinder (2) can push the liquid-proof ring (4) to move into a guide-resistive accommodating cavity (28) formed by the outer sleeve (1) and the guide-resistive ring (9) in order to release the locking base (3); after the locking base (3) and the sliding device (5) are locked, the locking base (3) is driven by the sliding device (5) to drive the needle tip (33) to retract into the pushing cylinder cavity.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA slide rail preassembling assembly and a shower room. The slide rail preassembling assembly comprises a positioning member, a first corner member and a second corner member; the ends of the first corner member and the second corner member that are close to each other, are hinged to each other, so that the first corner member and the second corner member swing relative to each other to a factory state or a positioning state, and one end of the ends of the first corner member and the second corner member that are close to each other, is provided with a first pressing portion, and the other end thereof is provided with a second pressing portion; in the factory state, the positioning member and the first corner member, and the positioning member and the second corner member are configured to be separated; and in the positioning state, the first corner member and the second corner member form a folded structure, the first pressing portion and the second pressing portion abut against each other at an inner side of the folded structure, and the positioning member is mounted at an outer side of the folded structure, so as to restrict the first corner member and the second corner member from swinging relative to each other.\nA: The present invention relates to an interactive smart tablet and an outer corner piece thereof. The interactive smart tablet comprises a display screen assembly, a touch circuit board and a frame structure, wherein the frame structure comprises frame strips, an inner corner piece and the outer corner piece, one end of the inner corner piece is fixed to the frame strip on one side, and the other end is fixed to the frame strip on another side. The outer corner piece comprises a corner body, a first support plate and a second support plate, wherein the corner body comprises a first corner plate and a second corner plate, the first support plate is arranged on the inner surface of the first corner plate, and abuts against the inner corner piece or the frame strip. The second support plate is arranged on the inner surface of the second corner plate, and abuts against the inner corner piece or the frame strip. Therefore, the first support plate and the second support plate can effectively prevent the outer surfaces of the first corner plate and the second corner from being recessed or collapsed under the action of an external force, thereby effectively ensuring the stability of the interactive smart tablet.\nB: The present application provides a food processing device, comprising: a base, a stator assembly being provided on the base; a cup assembly, the cup assembly being disposed on the base; a first rotor assembly, provided with a first rotating shaft, the first rotor assembly being disposed on the cup assembly, and the first rotor assembly being adapted to be driven by the stator assembly; and a second rotor assembly, provided with a second rotating shaft, the second rotor assembly being disposed on the cup assembly, the second rotor assembly being adapted to be driven by the stator assembly, the first rotating shaft and the second rotating shaft being coaxially arranged, the first rotating shaft being sleeved on the second rotating shaft, and the first rotating shaft and the second rotating shaft being separately provided with a cutter assembly. According to the food processing device provided by the present application, the cutter assemblies on the first rotor assembly and the second rotor assembly are independent of each other, so that rotation in the same direction and rotation in opposite directions of the first rotating shaft and the second rotating shaft and control of the rotational speed difference therebetween can be implemented, thereby improving the crushing effect and crushing efficiency.\nC: Provided are a roller device and a shower room door. The roller device comprises: a first pre-assembly component (200) to be pre-assembled to a shower room door (100); and a second pre-assembly component (300), wherein a roller mechanism (400) is provided at a side of the second pre-assembly component facing away from the first pre-assembly component (200). A first slot is provided at one end of one of the first pre-assembly component (200) and the second pre-assembly component (300), and an insertion portion is provided at a corresponding end of the other of the two opposing components. An insertion tongue (205) is provided at one end of one of the first pre-assembly component (200) and the second pre-assembly component (300), and a second slot (303) is provided at a corresponding end of the other of the two opposing components. The maximum depth at which the insertion portion is inserted into the first slot is greater than the maximum depth at which the insertion tongue (205) is inserted into the second slot (303). The insertion portion is further inserted into the first slot, such that the insertion tongue (205) is aligned with the second slot (303) and the insertion tongue (205) is then inserted into the second slot (303), thereby assembling the second pre-assembly component (300) and the first pre-assembly component (200).\nD: A fabric-embedded pop-up display frame. Upright posts (A) and cross beams (B) are all profiles (1); a corner member (3) is provided between adjacent ends of each upright post (A) and each cross beam (B); two connecting members (2) of which mirror images are symmetrical are provided corresponding to each corner member (3); basal bodies (2-1) of the two connecting members (2) of which mirror images are symmetrical are respectively inserted into main cavities (1-c) of the two profiles (1); insertion bodies (2-3) of the two connecting members (2) are respectively inserted into two insertion portions (3-c) of the basal bodies (3-1) of the corresponding corner member (3), so to implement the connection between the upright post (A) and the cross beam (B); front fabric embedding slots (1-a) of the profile (1) are respectively connected to corresponding front fabric embedding channels (3-a) in the corner member (3) by front abutment channels (2-a) of the connecting member (2); a side fabric embedding slot (1-b) of the profile (1) is connected to a side fabric embedding slot (1) of the corner member (3) by a side abutment channel (2-b) of the connecting member (2), so as to form one or two annular front fabric embedding slots and two or one annular side fabric embedding slot on a frame. According to the present frame, different fabric embedding slots are selected for mounting a fabric, there are multiple mounting forms of the fabric, and the profiles (1) can be wrapped when the fabric is embedded in appropriate fabric embedding slots, so that the profiles (1) of the display will not be exposed, and a good visual effect of the fabric is achieved.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA drying system for a nursing bottle cleaning machine and a nursing bottle cleaning machine. The drying system comprises: a draught fan (1), which is used for supplying air to a washing chamber of a nursing bottle cleaning machine and into a nursing bottle that is in position inside of the washing chamber; a lower air duct, wherein the draught fan (1) is disposed inside of the lower air duct, an air inlet of the lower air duct communicates with an air inlet of the draught fan, and an air outlet of the lower air duct communicates with an air outlet of the draught fan; a side air duct, which is provided with a vertical extension segment, wherein an air inlet of the side air duct communicates with the air outlet of the lower air duct, and traverses the vertical extension segment to communicate with an air outlet of the side air duct; and an inner air duct (18), which is mounted inside of the washing chamber, wherein an air inlet of the inner air duct (18) communicates with the air outlet of the side air duct, and an air outlet of the inner air duct extends into a nursing bottle mouth. The present drying system enhances the drying effect at an interior of a nursing bottle, and is not only beneficial in reducing the area of projection of the nursing bottle cleaning machine, but may also effectively prevent or lessen the amount of water or mist inside of the washing chamber that flows out along the air ducts.\nA: Disclosed is a smoke extraction and dust removal apparatus, comprising a casing (1). The casing (1) is provided with an exhaust port, the exhaust port is in communication with an air inlet of an inner air duct (11), the inner air duct (11) is mounted in a pressurized air cavity (12), a lower end of the pressurized air cavity (12) is connected to an outer edge of the air inlet of the inner air duct (11), and an upper end of the pressurized air cavity (12) is in communication with an outer air pipe (22); and an air-exhausting device (13) capable of radially exhausting air in the inner air duct (11) so as to form negative pressure in the inner air duct (11) and thus facilitate the intake of smoke and dust into the inner air duct is mounted on a lower end wall face of the inner air duct (11), air located between the inner air duct (11) and the pressurized air cavity (12) is pressurized so as to rapidly flow to the outer air pipe (22) at the same time as negative pressure is produced in the inner air duct (11) by means of the air-exhausting device (13), and the pressurized air drives the air in the inner air duct (11) to be rapidly exhausted to the outer air pipe (22). The apparatus has a simple structure, is convenient to manufacture, install and maintain, and can work for a long time without cleaning.\nB: A combustion flue gas supply device includes a furnace body. A combustion chamber (5) is arranged in the furnace body. A combustion tray (6) is provided in the combustion chamber (5). A lower air cavity (7) for air intake is arranged at the underside of the combustion tray (6). A perpendicular material feeding device (12) is arranged at the bottom of the furnace body. The inlet of the perpendicular material feeding device (12) is connected with the outlet of a horizontal material feeding device (10). The outlet of the perpendicular material feeding device (12) is communicated with the combustion chamber (5) at the lower air cavity (7) and the combustion tray (6). The side wall of the combustion chamber (5) is composed of an outer wall (21), a middle wall (23) and an inner wall (24). An inner layer air channel between the inner wall (24) and the middle wall (23) is connected with main air intake fans (3, 22). Multiple air intake nozzles (20) with vertically distributed air spraying axes are arranged on the inner wall (24) to communicate with the inner layer air channel and the combustion chamber (5). An outer layer air channel between the outer wall (21) and the middle wall (23) is connected with an air curtain fan (8), and the inlet of the air curtain fan (8) is arranged at the lower portion of the outer layer air channel. The upper end of the outer layer air channel is communicated with the top of the combustion chamber (5), and a de-slagging device is arranged corresponding to the combustion tray (6). The device is used for generating hot flue gas. The furnace body has small volume, flexible arrangement, sufficient combustion, and high thermal efficiency, and automatic fuel supplying and de-slagging can be achieved.\nC: A dish washer drying system (100) and a dish washer (1000). The dish washer drying system (100) comprises a lining (10), a heat exchange apparatus (20), a first air duct (30) in communication with the lining (10) and the heat exchange apparatus (20), a second air duct (40) in communication with the heat exchange apparatus (20) and with the atmosphere outside, and a switching apparatus (50). The heat exchange apparatus (20) is mounted outside of the lining (10). A first flow channel (21) and a second flow channel (22) are provided within the heat exchange apparatus (20). A first fan (31) is provided on the first air duct (30). A second fan (41) is provided on the second air duct (40). The switching apparatus (50) is used for putting the first flow channel (21) in communication with alternately the first air duct (30) and the second air duct (40) and used for putting the second flow channel (22) in communication with alternately the second air duct (40) and the first air duct (30). The dish washer (1000) comprises the dish washer drying system (100). The drying system (100) is capable of effectively condensing and removing hot and humid air, thus implementing highly efficient drying of the lining (10).\nD: Disclosed are a heat pump clothes dryer and a control method for the heat pump clothes dryer. The heat pump clothes dryer comprises a drum (2), a heat pump system (4), a fan (3) and a ventilation assembly (5), wherein the heat pump system (4) comprises an air duct, a condenser (42) and an evaporator (43); the air duct comprising a first part (A2) in communication with a hot humid air outlet (21) of the drum (2) and an air inlet of the evaporator (43); and the ventilation assembly (5) is mounted on the first part (A2) of the air duct, and the ventilation assembly (5) is provided with an air intake hole (52) and an air output hole (55) which are capable of being opened and closed, the air intake hole (52) being used for introducing cold air outside the air duct into the first part (A2), and the air output hole (55) being used for discharging some of hot humid air inside the first part (A2). By means of the arrangement, the ventilation assembly (5) can guide cold air into the air duct and/or exhaust the hot humid air in the first part (A2) of the air duct, so as to reduce the temperature of the hot humid air exchanging heat with a refrigerant in a pipeline of the evaporator (43), thereby reducing the temperature of the exhaust air of a compressor (41), and preventing the compressor (41) from being repeatedly started and stopped due to overload.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultrasonic imaging device and a method for detecting endometrial peristalsis. The method comprises: acquiring ultrasound echo data of the endometrium (1), and determining on said basis the peristaltic displacement or peristaltic speed of a point in the endometrium within a preset period of time (2); calculating peristalsis parameters of the endometrium according to the peristaltic displacement or the peristaltic speed of the point in the endometrium within the preset period of time, the peristalsis parameters being used to describe the moving state of endometrial peristalsis (3); and displaying the peristalsis parameters (4). Thus, peristalsis parameters are calculated automatically without relying on the subjective determination of an ultrasound doctor, which improves the accuracy and efficiency of the detection of peristalsis.\nA: An ectopic endometrium recognition polypeptide, and a derivative and the use thereof, which belong to the field of medical cell biology. The ectopic endometrium recognition polypeptide comprises a combination of one or more of the following sequences: SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 and SEQ ID NO: 6. Such polypeptide molecules can specifically recognise ectopic endometrium lesion tissue, and provides a specific recognition tool for the diagnosis and treatment of a patient with endometriosis. As a result of the conservation and specificity of the sequence, the polypeptide is applicable to various types of basic clinical research and applications with regard to human endometriosis, and is also suitable for serving as a research tool in endometriosis modeling laboratory animals.\nB: The present invention provides use of an exosomes from decidua NK cells and subsets thereof in preparation of a medicament and an auxiliary therapeutic agent for diseases related to infertility. It was confirmed through experiments that the exosome may treat endometrium growth disorders by promoting endometrial thickness to increase, improving endometrial cell activity, reducing endometrial cell damage, promoting VEGF expression, maintaining endometrium stromal cell stemness and stimulating proliferation, so that the conception success rate of endometrium damage model mice is increased from 20% to 50-70%; and may treat diseases related to maternal-fetal immune tolerance disorders by playing a role of immunologic tolerance, reducing a spontaneous abortion rate and improving a T helper lymphocyte level. In addition, the exosome of the present invention can effectively increase the developmental rate of zygotes fertilized no matter in vivo or in vitro in a multiple mode, and meanwhile, improve in-vitro fertilization rate, implantation rate of transplanting and birth rate, showing positive assisting effects on infertility treatment.\nC: An ultrasonic imaging apparatus (10) and method. A vibration mechanism (102) excites a probe (100) to generate shear waves in a target object to perform elasticity measurement; a transmitting circuit (101) excites the probe (100) to transmit ultrasonic waves to the target object, and receives and processes ultrasonic echoes so as to acquire an ultrasonic image of the target object; and the vibration state of the probe (100) is determined after the generation of the shear waves, whether the pressure before and after the generation of the shear waves for elasticity measurement is consistent is determined, and the actual value of a vibration parameter of the probe (100) is controlled to be kept constant. By means of the ultrasonic imaging apparatus (10) and method, the pressure of the probe (100) between target objects after the probe (100) starts to vibrate is detected so as to determine whether empty vibration or sliding occur on the probe (100) and whether a measurement result is valid, thereby preventing the empty vibration of the probe (100) from influencing the service life of the probe (100), and improving the validity of the elasticity measurement result; and according to a vibration signal, a channel signal of the probe (100) is adjusted so as to ensure the actual vibration stability of the probe (100), thereby further improving the accuracy of elasticity detection.\nD: Provided is use of a uterine cavity fluid-derived exosome in the preparation of therapeutic drugs and adjuvant therapeutic agents for treating infertility-related diseases. Experiments have demonstrated the exosome achieved the treatment or alleviation of endometrial aplastic diseases by promoting the increase of endometrial thickness, enhancing the viability of endometrial cells, reducing the damage to endometrial cells, promoting expression of VEGF, maintaining the stemness of endometrial stromal cells, and stimulating proliferation; the treatment or alleviation of a maternal-fetal immune tolerance disorder-related diseases is achieved by performing an immune tolerance effect, treating spontaneous abortion, and increasing the level of T-helper lymphocytes. In addition, the exosome can effectively increase the development rate of either fertilized eggs being fertilized in vivo or fertilized in vitro in a multiple manner, and improve the implantation rate and the farrowing rate of in vitro fertilization transplantation, having an auxiliary effect in the treatment of infertility.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn oral irrigator having an easy-to-clean water suction tube (2), said oral irrigator comprising a machine body (1), the water suction tube (2), and a water tank (3) which is detachably connected to the machine body (1). The inside of the machine body (1) is also provided with a water path assembly (5) which is in communication with the water suction tube (2). The water suction tube (2) is arranged separately from the water path assembly (5), and the water suction tube (2) is detachably fixed within the water tank (3). When the water suction tube (2) or the water path assembly (5) is blocked, a user can easily clear and clean the water suction tube (2) or the water path assembly (5), thereby increasing the user cleaning efficiency, and improving the user experience.\nA: A tooth rinsing device, comprising a shell (1), a tooth rinsing part (2), and a water nozzle part (3), the tooth rinsing part (2) being arranged in the shell (1) and having a water inlet and a water outlet, and the water nozzle part (3) being connected to the water outlet of the tooth rinsing part (2); also comprising a winding mechanism (4) and a water pipe (5) capable of bending and winding, the water pipe (5) being wound by means of the winding mechanism (4), reducing the space occupied by the water pipe (5), being convenient to carry, package, and transport, and also preventing the water pipe (5) from being lost; using the water pipe (5) capable of bending and winding is convenient for placing a second end of the water pipe (5) in a container filled with water or connecting same to a water source, having broad usage scenarios.\nB: A misting fan comprises a fan body (1) and a misting part, wherein the misting part comprises a water tank (2) provided with a water inlet (21), connected to the bottom of the fan body (1); a water outflow nozzle (3) arranged at the top of the fan body (1); a water suction tube (4), wherein an upper end of the water suction tube (4) is connected to the water outflow nozzle (3), a lower end of the water suction tube (4) passes through the water inlet (21) of the water tank (2) and then into the water tank (2) to the bottom thereof, and a water outflow switch (5) for controlling the water outflow of the water suction tube (4) is arranged in the middle of the water suction tube (4); and a hand air pump (6) used for pumping up the interior of the water tank (2) and arranged in the water tank (2), wherein a piston rod (61) of the hand air pump (6) protruding out of the water tank (2) and connected to a pump grip (7). The components of the misting fan have simple structures, requiring no water pump, and thus the cost and failure rate are low; and one pumping can produce misting for a period of time and the operation is convenient.\nC: A handheld electric iron (100), comprising: a housing (1), a bottom plate assembly (2), and a water tank assembly (3). The water tank assembly (3) comprises a water tank (31), a water pump (32), and a water absorption member (7) capable of absorbing water; a water storage chamber (313) being provided in the water tank (31); the water pump (32) is communicated with a water outlet (312) by means of a water inlet pipe (33) and is communicated with a vaporizing chamber (21) by means of a water outlet pipe (34); the water absorption member (7) is configured to absorb water from the water storage chamber (313) to supply water to the water pump (32).\nD: A sinking and floating type water pump, an anti-sinking base (1), a water suctioning throat (2), a feedback device (3), a pump tank (4), a control end (5), a handle (6), and a water outlet pipe (7). The top end of the anti-sinking base (1) is fixedly connected to the interior of the pump tank (4) in an embedded manner; the lower end of the pump tank (4) is connected to the water suctioning throat (2) in a nested manner; the water suctioning throat (2) is in clearance fit with the interior of the water outlet pipe (7); the left side of the water outlet pipe (7) is in clearance fit with the handle (6); the feedback device (3) movably matches the interior of the pump tank (4); the lower end of the water suctioning throat (2) is in clearance fit with the anti-sinking base (1). The anti-sinking base (1) comprises a support frame (11), a cover sheet (12), and a base body (13). The support frame (11) movably matches the interior of the base body (13); the upper surface of the base body (13) is in nested fit with the cover sheet (12), and the cover sheet (12) is in clearance fit with the surface of the support frame (11). When a swinging ring (111) sinks, supporting rods (a3) are driven to be unfolded by reverse impact force with respect to water flow, and while upfolding, a floating block (a1) fixed by matching a fixing groove (b2) moves horizontally and downwards, such that a folding toothed plate (b4) at the bottom of the floating block (a1) is inserted into the surface of sludge and plays a role in supporting the pump tank (4), thereby effectively avoiding the problem of the impact of water quantity throughput caused due to the fact that the pump tank (4) is too heavy and sunk into the sludge.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA nozzle structure of a multifunctional water flosser, and a water flosser consisting of same. The nozzle structure of the water flosser consist of an inner nozzle core (1) and a nozzle housing (2); the middle of an end surface of an end portion of the inner nozzle core (1) inwardly recessed to form a water gathering cavity (11), multiple tangential water inlet flow channels (12) are provided on the periphery of the water gathering cavity (11), and the center of the water gathering cavity (11) is provided with a columnar water inlet (13); the inner nozzle core (1) is provided with a first flow channel (14), and the first flow channel (14) has one end communicated with the columnar water inlet (13), and the other end used as a columnar water interface (15); the inner nozzle core (1) is further provided with a second flow channel (16), and the second flow channel has one end communicated with the tangential water inlet flow channels (12), and the other end used as an umbrella-shaped water interface (17); and a water inlet (22) is formed in the outer peripheral surface of the inner nozzle core (1) circumferentially corresponding to the nozzle housing (2), and the water inlet (22) is connected to either the columnar water interface (15) or the umbrella-shaped water interface (17) in an alternated manner.\nA: Provided is a nozzle assembly of a biological printer, comprising an installation block (3) having a channel (5), and a nozzle (1) installed in the channel (5), wherein a first flow channel (4) is disposed in the installation block (3), with one end of the first flow channel (4) being provided with an end opening (41) in communication with the channel (5); the nozzle (1) comprises an equal-diameter portion (12) and a diameter-reducing portion (13) away from and close to an outlet (6) of the channel (5), respectively; a second flow channel (7) is formed between the diameter-reducing portion (13) and the channel (5); an opening can be formed between the diameter-reducing portion (13) and the end opening (41); the opening is in communication with the first flow channel (4) and the second flow channel (7); and the equal-diameter portion (12) can seal the end opening (41). The flow area of the nozzle assembly can be conveniently adjusted by changing the relative position between the diameter-reducing portion (13) and the end opening (41).\nB: A water pump, comprising a shell (15), a filter device (16), an electric motor housing (17), an electric motor, a volute (14) and an impeller (19), wherein the volute (14) is positioned between the filter device (16) and an outer housing (171), and the volute (14) is connected to the filter device (16) and the outer housing (171); the volute (14) is provided with a chamber (1) and a spiral flow channel (2) in communication with the chamber (1); the chamber (1) is provided with a water inlet (3) and water intake holes (4) provided on the periphery of the water inlet (3); the water inlet (3) and the water intake holes (4) are all in communication with a water output end (23); a connecting position (8) connected to the water output end (23) is also configured on the periphery of the water inlet (3); a gap is formed between the connecting position (8) and the water output end (23); the spiral flow channel (2) is provided with a water outlet (5) in communication with a water output portion (21); the water outlet (5) is provided with first notches (6); a first water flow channel is formed between the first notches (6) and an inner wall of the shell (15), and is in communication with a water cooling cavity (24); recesses (7) are arranged on the periphery of the volute (14); and a second water flow channel is formed between the recesses (7) and the inner wall of the shell (15), and is in communication with the water cooling cavity (24) and the gap between the connecting position (8) and the water output end (23). The water pump has a simple structure, can cool down the temperature of the electric motor, and can improve a heat dissipation effect.\nC: Provided is an oral cavity cleaning device, comprising: a body (1), a water outlet nozzle (2), a first motor (3), a second motor (4), a brush head (5) and a water absorption component (6); a rotating shaft (12) extends outside the upper end surface of the body (1), the rotating shaft (12) is driven by the first motor (3) to vibrate and drive the brush head (5) to vibrate; the upper end surface of the body (1) is also provided with a water outlet (11), the water outlet nozzle (2) is provided on the upper end surface of the body (1) and communicates with the water outlet (11); in addition, the water outlet nozzle (2) is located on the side of the brush head (5) facing the human body, and the height of the water outlet nozzle (2) is located below the bristles of the brush head (5); the second motor (4) drives the water absorption component (6) to pump water from the built-in or external container, and spray the water from the water channel inside the body (1) through the water outlet (11) and the water outlet nozzle (2), thus, the oral cavity can be rinsed auxiliarily while brushing the teeth.\nD: The present application relates to a cleaning machine, comprising a base (8) having a vacuum pump and a booster pump, and a washing sprayer (1). A clean water barrel (4) and a waste water barrel (9) are provided at left and right sides of the base (8). The washing sprayer (1) is provided with a nozzle (2) and a plurality of water-absorbing holes (11) surrounding the nozzle (2). The washing sprayer (1) is connected to the air inlet hole of the vacuum pump by means of a connection hose (3). A water outlet pipe (31) is provided in the connection hose (3). One end of the water outlet pipe (31) is connected to the nozzle (2), and the other end is connected to the water outlet of the booster pump. A water outlet hole is provided at the bottom of the clean water barrel (4). A water return hole is provided at the bottom of the waste water barrel (9). One-way valves are respectively provided in the water outlet hole and the water return hole. The base (8) is provided with a water pumping joint inserted in the water outlet hole and connected to the water inlet hole of the booster pump, and a waste water joint inserted in the water return hole and connected to the air exhaust hole of the vacuum pump. Opening pins capable of opening the one-way valves are respectively provided in the water pumping joint and the waste water joint. According to the present application, waste water produced by cleaning can be pumped while the cleaning liquid is sprayed for cleaning, thereby avoiding secondary pollution caused by the waste water produced during cleaning.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a dental floss pick comprising a handle part (11) and a head part (21), wherein the head part (21) is located at the top end of the handle part (11) and curves upwardly in a synclinal fashion from the handle part; the head part (21) has a first arm part (221) and a second arm part (222) symmetrically extending from the bottom end of the head part to the two sides, and a third arm part (223) and a fourth arm part (224) extending symmetrically from the top end of the head part (21) to the two sides; a first space (231) is formed between the ends of the first arm part (221) and the third arm part (223) and used for tightening a first section of dental floss (311), a second space (232) is formed between the ends of the third arm part (223) and the fourth arm part (224) and used for tightening a second section of dental floss (312), and a third space (233) is formed between the ends of the fourth arm part (224) and the second arm part (222) and used for tightening a third section of dental floss (313); and the first section of dental floss (311) and the third section of dental floss (313) are parallel to the lengthwise direction of the handle part (11), and the second section of dental floss (312) is perpendicular to the lengthwise direction of the handle part (11). The dental floss pick is ergonomically designed and can comprehensively and effectively clean teeth.\nA: Disclosed is an automatic dental floss pick box, comprising a bottom shell (1), a cover plate (2) and an upper housing (3), wherein the bottom shell (1) is a rectangular tank with an opening in the upper surface thereof, and a front upper edge and a rear upper edge of the bottom shell (1) are respectively provided with an elongated outlet slot (4); the bottom shell (1) is internally provided with plastic buttons (5) and a movable support (6); the plastic buttons (5) are cylindrical rod bodies vertically mounted on the front surface and rear surface of the bottom shell (1); a spring (7) is sheathed on the rod body of each plastic button (5), the outer end of the plastic button (5) is exposed out of the bottom shell (1), and the inner end of the plastic button cooperates with the movable support (6); the movable support (6) is an L-shaped rod, with a short side thereof being thickened and protruding upwards and being perpendicular to the front surface and the rear surface of the bottom shell (1); the cover plate (2) is a plastic plate consistent with the bottom shell (1) in terms of shape, the cover plate (2) is clamped to an upper opening of the bottom shell (1) in an embedded manner, and the middle of the cover plate (2) is provided with rectangular strip-shaped notches (8) which are symmetrically arranged in parallel; ends of the strip-shaped notches (8) are close to a front edge and a rear edge of the cover plate (2), and the short side of the movable support (6) cooperates with the strip-shaped notches (8) and exposes the strip-shaped notches (8); the upper housing (3) is in the shape of a transparent rectangular columnar tank with a bottom opening, the bottom of the upper housing (3) cooperates with the cover plate (2), and symmetrically stacked dental floss picks are held in the upper housing (3); and the bottom dental floss picks are located on the upper surface of the short side of the movable support (6).\nB: A handheld gimbal (100). The handheld gimbal (100) comprises a handheld part (10), a first shaft assembly (21), a second shaft assembly (22), a third shaft assembly (23), a rotary connection member (30), and a bearing part (231). The gimbal structure is mounted on the handheld part (10). The handheld gimbal (100) is able to switch between a folded state and an unfolded state. Under the folded state, the second shaft assembly (22), the third shaft assembly (23), and the bearing part (231) are located on the same horizontal side of the handheld part (10); under the unfolded state, the second shaft assembly (22), the third shaft assembly (23), and the bearing part (231) are located on the same vertical side of the handheld part (10). A rotating axis about which a first arm (211) and a second arm (212) rotate relatively is perpendicular to a length direction of the first arm (211). The volume after folding and storage is small, so that the handheld gimbal is in an easy-to-carry state, and portability requirements of consumers are satisfied. Moreover, the folding mode is simple and easy to operate, and can well satisfy user requirements.\nC: A drawing force testing device (100) comprises a base (10), a thrust meter (30), and a press-fit mechanism (20). The base (10) comprises a bearing plate (11) and a stopper block 14, the bearing plate (11) being used for bearing a workpiece, and the stopper block (14) being provided on the bearing plate (11); the press-fit mechanism (20) comprises a fixed base (21), a first connecting piece (22), a second connecting piece (23), a third connecting piece (24), and a pressure head (25); the fixed base (21) is mounted on the bearing plate (11); the first connecting piece (22) comprises a mounting plate (221) and a bent portion (223); one end of the bent portion (223) close to the mounting plate (221) is rotationally connected to the fixed base (21); one end of the second connecting piece (23) is rotationally connected to one end of the fixed base (21) facing the outer side of the bearing plate (11); the third connecting piece (24) comprises a connecting portion (241) and a holding portion (243); the middle part of the connecting portion (241) is rotationally connected to a free end of the second connecting piece (23); a tail end of the connecting portion (241) is rotationally connected to the tail end of the bent portion (223); the pressure head (25) is provided at the tail end of the mounting plate (221); the thrust meter (30) is used for abutting against a part to be tested of the workpiece to enable the part to be separated from the workpiece to obtain the drawing force of the part. The drawing force testing device (100) is used for converting the drawing force into thrust force for measurement, and is simple in structure and convenient to measure.\nD: A segmented cage (3) for a cylindrical roller bearing, comprising a plurality of independent cage units (31). The cage unit (31) comprises a base part (311) in the shape of a straight rod, a first retaining part (312) extending from an end portion of the base part (311), and a second retaining part (313) extending from the other end portion of the base part (311). The first retaining part (312) and the second retaining part (313) are in the shape of a bent rod; and a tail end portion of the first retaining part (312) and the tail end portion of the second retaining part (313) extend toward opposite directions. The technical solution provides a segmented cage featuring easy implementation and low costs, having both the cage rigidity and flexibility, and having a connection structure between itself and a roller. In addition, also provided are a cylindrical roller bearing using the segmented cage and a method for installing the cylindrical roller bearing.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA knee joint force line correction system, for use in wearing on a human knee joint and upper and lower thigh and calf positions, and comprising an upper brace assembly (300), a lower brace assembly (400), a first connection assembly (210), a second connection assembly (220) and a first adjustment mechanism (100A). The upper brace assembly (300), the lower brace assembly (400), the first connection assembly (210), the second connection assembly (220) and the first adjustment mechanism (100A) are enclosed to form a closed-loop structure. According to the knee joint force line correction system, by means of adjusting the first adjustment mechanism (100A), a brace forms a three-point force on the human leg to achieve the effect of correcting a force line. Moreover, the knee joint force line correction system has strong applicability and a good effect. The entire frame system has a simple structure and small volume and is lightweight. An elastic structure is used as a connection piece, which makes adjustment more convenient. The versatility is strong, and the costs are low.\nA: A dummy for a sitting posture pressure comfort test, comprising: a head (1), upper arms (2), lower arms (3), a torso (4), upper legs (5), lower legs (6), hip joints, knee joints, shoulder joints and elbow joints. The head (1) is fixedly connected to the torso (4). The torso (4) is connected to the upper legs (5) by means of the hip joints. The upper legs (5) are connected to the lower legs (6) by means of the knee joints. The upper arms (2) are connected to the lower arms (3) by means of the elbow joints. The head (1), the upper arms (2), the lower arms (3), the torso (4), each upper leg (5) and lower leg (6) comprises, from the outside to the inside, an epidermal layer (8), a support layer (9) and an inner layer (10). The torso (4) and the upper legs (5) are each provided with a plurality of pressure sensors. A first center-of-gravity adjustment mechanism is provided inside the torso (4). The head (1), the upper arms (2), the lower arms (3), the upper legs (5) and the lower legs (6) are internally provided with a second center-of-gravity adjustment mechanism. The present dummy may be used as a standard test tool for comfort testing of a seat product, is capable of calculating seat structure size parameters and human body posture parameters of a comfortable sitting posture, and is capable of measuring structural ergonomics and human-machine interaction pressure parameters such as seat surface height, depth, hardness and body pressure distribution of a comfortable sitting posture.\nB: A limiting adjustment linkage device and a lower limb support. The device comprises: a housing (10); a first bracket (20) provided on the housing (10); a second bracket (30) provided on the housing (10) and connected to the first bracket (20) by means of a reverse four-bar linkage (50), wherein the second bracket (30) moves relative to the first bracket (20) and the housing (10), respectively; and a limiting device (40) mounted on the housing (10) and located between the first bracket (20) and the second bracket (30), wherein when the first bracket (20) or the second bracket (30) moves relative to the housing (10), the limiting device abuts against the first bracket (20) and the second bracket (30) to limit the maximum amplitude of the movement of the first bracket (20) or the second bracket (30). By providing the lower limb support with the replaceable or adjustable limiting adjustment linkage device, the lower limb support can adjust a relative angle between upper and lower brackets according to the conditions of knee joints of different people, so that the lower limb support has stronger adaptability and is applicable to patients in different leg rehabilitation periods, thus reducing rehabilitation cost of the patients.\nC: A lens fine adjustment apparatus (1000), a lens adjustment module (2000), and a projection device. The lens fine adjustment apparatus (1000) comprises a first support (600) and a second support (110) which are adjustably and movably connected, and the lens fine adjustment apparatus (1000) also comprises a plurality of position adjustment mechanisms (700) used for adjusting the relative positions of the first support (600) and the second support (110), and various position adjustment mechanism connection assemblies and adjustment assemblies. The connection assemblies movably connect the first support (600) and the second support (110), and the adjustment assemblies apply forces causing one of the first support (600) and the second support (110) to move with respect to the other. The present invention provides ample freedom of adjustment for lens position adjustment, and has a high adjustment accuracy and a rapid adjustment means.\nD: A projection device position adjusting bracket (100). The projection device position adjusting bracket (100) comprises a fixing base (110), a first adjusting mechanism (130), and a second adjusting mechanism (140). The fixing base (110) is used for fixing a projection device (160), and a first transmission member (116) is fixedly connected to the fixing base (110). The first adjusting mechanism (130) is provided on a side of the fixing base (110) close to the first transmission member (116); the first adjusting mechanism (130) comprises a first adjusting base (131), a first driving assembly (133), and a second transmission member (137), and the first driving assembly (133) is transmittingly connected to the first transmission member (116) so as to drive the fixing base (110) to rotate around a first shaft (101). The second adjusting mechanism (140) is located on a side of the first adjusting mechanism (130) facing away from the fixing base (110); the second adjusting mechanism (140) comprises a second adjusting base (141) and a second driving assembly (143), and the second driving assembly (143) is transmittingly connected to the second transmission member (137); the second transmission member (137) drives the first adjusting base (131), and the first adjusting base (131) drives the fixing base (110) to do a lifting/lowering motion or a pitching motion.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn intelligent plush toy having a hand-warming function comprises a toy main body. The toy main body comprises a heat storage member, a layered outer casing, an electric heating electrode, and a heating electrode connector. A box is provided inside a plush layer of the plush toy. An upper surface of the box is an electronic ink screen. An image of a character in a certain situation is provided inside the box. The electronic ink screen is connected to a speed-change moving device and a motor inside the box. The box is further provided therein with an audio player for playing nursery rhymes and music for children. The speed-change moving device, the motor and the audio player are in communication connection with a microcontroller inside the box. The electronic ink screen, the speed-change moving device, the motor, the microcontroller and the audio player are all connected to a battery inside the box. The toy can be used to warm hands and enables a child to learn pronunciation and recognition of characters. When the box generates a sound, a motion of a character is presented on the electronic ink screen by means of the speed-change moving device and the motor, thereby facilitating learning of a child.\nA: The present disclosure relates to a transfer bin, transfer system, and information display control method thereof. The transfer bin comprises: a bin body; an electronic ink screen, said electronic ink screen being arranged on the outer surface of the bin body; a wireless communication module, said wireless communication module being arranged on the bin body; a processor, said processor being separately connected to the electronic ink screen and the wireless communication module; a power supply module, said power supply module being used for supplying power to the electronic ink screen, the wireless communication module, and the processor; when the transfer bin is located in a preset area, the wireless communication module receives a first signal, the wireless communication module sends a wake-up signal and a second signal to the processor, the processor is awakened and wakes the wireless communication module on the basis of the second signal, and controls the electronic ink screen to update display information and then power off the electronic ink screen, whereafter the processor enters a sleep state.\nB: An electronic ink screen and a manufacturing method therefor. The electronic ink screen comprises a display module (1), a control module (2) and a circuit module (3), wherein the display module (1) comprises a plurality of pixel units, and is configured to perform display by using electronic ink; the control module (2) is configured to convert, by means of an electrode micro-structure, a touch-control signal applied from the outside into an electrical signal change of a corresponding pixel unit, such that the display state of the pixel unit changes from an initial state; the electrode micro-structure comprises sub-electrode micro-structures (4) corresponding to pixel units on a one-to-one basis; and each sub-electrode micro-structure (4) comprises a first nano-electrode (41) and a second nano-electrode (42) which are made of different materials, with the two being arranged to be spaced apart from each other and being configured to be in frictional contact with each other when receiving the touch-control signal applied from the outside, so as to cause charge transfer. The electronic ink screen can prevent a display delay; moreover, energy is consumed only when electronic ink is deflected, without requiring additional power consumption, such that the energy consumption thereof can be effectively reduced.\nC: A plush toy has an outer section (1) sewn from a plush fabric and an inner section (2) to be inflated with air. A liquid-filled separate sub-section (3) is arranged at a bottom portion of the inner section (2) for providing the plush toy with a stable center of gravity. The inner section (2) is provided with an inflation nozzle (4). The plush toy can be deflated to a small size for convenient storage and transport. After being inflated, the plush toy can stand due to a lower center of gravity, and is equivalent to a roly-poly toy. A child can use the plush toy to practice boxing and wrestling and train. Since the plush toy has a soft texture and is light, it does not cause damage to the skin and bones of the child.\nD: An electronic signage, an electronic signage system and a method for controlling the same. The electronic signage comprises an electronic ink screen (2), a wireless transmission circuit (3), a near field communication circuit (4) and a microcontroller (1). The microcontroller (1) is respectively connected to the electronic ink screen (2), the wireless transmission circuit (3) and the near field communication circuit (4). The microcontroller (1) is used to read user information by means of the near field communication circuit (4), to send the user information and receive input information by means of the wireless transmission circuit (3), to control the electronic ink screen (2) to display the input information, and to deenergize the electronic ink screen (2) after the electronic ink screen (2) has displayed the input information.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA micromist sauna device comprises: a circulating air supply device (11) for circulating indoor air, a heating device (12) for heating air, and a humidifier (20) arranged at the downstream side of the heating device (12) and used for humidifying air. The lower part of the humidifier (20) is provided with a water storage portion (21) for storing water, and the upper part is provided with a humidification portion (22) for sucking up the water in the water storage portion (21) and spraying mist; and a crusher (60) is fixedly arranged around the humidification portion (22), the crusher (60) has multiple ribs (61) and is cone-shaped, and an opening (62) of an airflow channel is formed between the multiple ribs (61). The advantage of the device is that the efficiency of contact between air and water droplets is high, so that the humidification loss and the heat loss are reduced.\nA: A humidification device and humidification method used for a core-manufacturing machine, which are used for preserving the moisture of or humidifying one or more areas in a core sand mixing device, conveying device, storage device and sand ejecting device of the core-manufacturing machine; the invention comprises a humidification device, a control device and a humidification pipe (4) that communicates with the humidification device and an area to undergo moisture preservation or humidification, and is characterized in that: the humidification device is mainly composed of a water tank (2), a water intake valve (10) and atomization devices equal in number to the areas to undergo moisture preservation or humidification; each atomization device is provided with a vertically disposed cage mist chamber (3), a bottom portion of the cage mist chamber (3) being provided with a nozzle (5) having an upward outlet, and a top portion of the cage mist chamber (3) communicating with the humidification pipe (4); the nozzle (5) is connected to a water suction pipe (6) and an air intake pipe (7), a water intake port of the suction pipe (6) is located within the water tank (2), and the air inlet pipe (7) is connected to a compressed air source by means of an air valve (8); the size of the cage mist chamber (3) matches the minimum dispersion area sprayed by the nozzle (5). The invention facilitates control and may guarantee the transportation of mist, and outputted water mist particles have uniform dispersibility and stable flow rate, while humidity is easy to control; moreover, the structure is simple and reliable, and is suitable for harsh working environments.\nB: A micro-mist sauna apparatus (10), in which an air outlet (12) of a humidification unit (15) and an air-directing plate (19) on a panel (18) are connected therebetween via an air duct conversion structure (20). The upper part of the air duct conversion structure (20) forms a first opening (21) that is consistent in size with the air outlet (12) of the humidification unit (15). A first group of paired sides (22) of the first opening (21) extend obliquely inwards and downwards for a certain length to form a first oblique part (23). The middle parts of a second group of paired sides (24) of the first opening (21) extend obliquely outwards and downwards for a certain length to form a second oblique part (25). The lower end of the first oblique part (23) and the lower end of the second oblique part (25) encircle to form a second opening (26). This structure allows the micro-mist sauna apparatus to blow an even flow of air.\nC: An air conditioner humidification system, comprising a water storage device (1) and a water conveying device (2) that are integrated into an outdoor unit, as well as a humidification device (3) that is integrated into an indoor unit. The water storage device (1) comprises a water molecule-permeable membrane (11) and a first water storage part (12), wherein water molecules in the air may enter the first water storage part (12) by means of the water molecule-permeable membrane (11). The water conveying device (2) is used for conveying water in the water storage device (1) to the humidification device (3). The humidification device (3) is used for vaporizing water which is sent by the water conveying device (2) into water vapor, wherein the water vapor may enter into a room to humidify the air in the room. Water does not need to be added in the system, and the water molecule-permeable membrane has the function of selectively permeating water molecules instead of nitrogen, oxygen and other substances, thus achieving the effect of purifying water molecules, reducing the generation of water scale, and solving the problem in which existing air conditioners do not have a humidification function or in which air conditioners which do have a humidification function have a low degree of automation.\nD: An air handling unit for an air conditioner and a control method therefor, and an air conditioner. The air handling unit (1) comprises a housing (10); the housing (10) is provided with an air inlet and an air outlet (13); an air duct is formed inside the housing (10); a fan (21), a water storage tank (31), a water tank heating apparatus (33), and a washing apparatus (40) are provided inside the air duct. The control method comprises: determining, when the air handling unit (1) is in a washing mode, whether a preset heating starting condition is satisfied, wherein in the washing mode, the washing apparatus (40) is in an operating state; and if the heating starting condition is satisfied, starting the water tank heating apparatus (33) to heat the water inside the water storage tank (31) so as to raise the temperature of the water, thus transferring, when the water is in contact with an air flow, at least part of heat from the water to the air flow, thereby raising the temperature of the air flow. By means of the air conditioner, the heating of the air flow is converted into the heating of the water, so that the purification, humidification and temperature rise of the air flow are performed at the same time, and thus the air can be effectively humidified and purified by washing, the temperature of the air can be compensated, and the air conditioner can be assisted in heating.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA suction nozzle structure for a massage device. A suction nozzle (20) is made of a flexible material, and the suction nozzle (20) has a trumpet-shaped cavity (201) with an outward opening. The inner bottom face of the cavity (201) is integrally convexly provided with a toggle piece (21) facing the opening of the cavity (201), and a support part (22) is formed on a back face of the toggle piece (21). The toggle piece (21) sways left and right to squeeze the air in the cavity (201), thereby generating an air vortex. The surface of a human body is massaged by using a force generated by the air vortex, so that the traditional manner of using an object to directly act on the human body is replaced, and the user experience can be effectively improved.\nA: Provided is a massager, comprising: a control mechanism (20) comprising a case, the case being a hard shell, and the case being provided with a wearing recess (201) adapted to the patella of a user, with an opening of the wearing recess (201) of the case abutting against the periphery of the patella; and a fixing mechanism (30), which is connected to the case and is wound around and fixed to the knee area of the user together with the case so as to hold the patella of the user in the wearing recess (201), wherein the fixing mechanism (30) is provided with a massage airbag at a position corresponding to the knee area. Since the opening of the wearing recess (201) of the case abuts against the periphery of the patella, and the case is a hard shell, after the massage airbag is inflated, the fixing mechanism (30) necessarily applies a pulling force to both ends of the case, and the pulling force is delivered to the peripheral area of the patella, such that the case does not directly squeeze the patella, nor affects the user's sitting or walking, thereby avoiding a poor massage effect caused by improper squeezing on the patella.\nB: A humidifier and a heater. The humidifier comprises a housing assembly (2), a cover assembly (1), an oscillation plate assembly (5), and a fan (3). A water storage cavity (20), an accommodation cavity (21), and an isolation column (22) are formed in an inner portion of the housing assembly (2). The water storage cavity (20) and the accommodation cavity (21) are isolated from each other in a vertical direction. The isolation column (22) extends from the accommodation cavity (21) into the water storage cavity (20). The water storage cavity (20) is formed into an open structure having an upwards-facing opening. The fan (3) is located in the accommodation cavity (21). An airflow generated by the fan (3) is introduced via the isolation column (22) into air in the water storage cavity (20). The humidifier uses the airflow generated by the fan (3) to discharge, via a steam discharging port (100), steam in an upper hollow portion of the water storage cavity (20) without requiring the additional and specific provision of a steam discharging pipeline, such that the overall structure of the humidifier is compact, thereby reducing the design dimensions of a product, and reducing the footprint thereof.\nC: A hockey stick having a shock-absorbing function comprises a striking part (10) and a holding part (20) that are sequentially connected. The striking part (10) and the holding part (20) are both made of composite carbon fiber. The holding part (20) is hollow with a cavity (201) formed therein. The holding part (20) comprises a front section (21) and a rear section (22). The front section (21) and the rear section (22) are fixedly connected by a shock absorber (30) therebetween. The outer wall of the shock absorber (30) is exposed at the outer wall of the holding part (20), and the inner wall of the shock absorber (30) is exposed at the inner wall of the cavity (201).\nD: Disclosed is a surface cleaning device, comprising a suction nozzle (2) for sucking up liquid from an object surface and outside air when cleaning the object surface; a water tank (3) which is provided with a cavity and used for collecting the liquid sucked up; a suction unit (4) for generating a negative pressure and forming a suction force; a suction pipeline (5) which is connected between the suction nozzle (2) and the water tank (3) and used for transferring the sucked-up liquid and outside air into the water tank (3); and a negative pressure pipeline (6) which is connected between the suction unit (4) and the water tank (3) and is in communication with the suction pipeline (5) via the cavity inside the water tank (3). The suction nozzle (2), the suction pipeline (5), the water tank (3), the negative pressure pipeline (6) and the suction unit (4) are arranged in sequence from top to bottom, the liquid and the outside air sucked up by the suction nozzle (2) enter the water tank (3) through the suction pipeline (5) along the same path from top to bottom, and the liquid sucked up by the suction nozzle (2) is collected by the water tank (3) after entering the water tank (3), while the outside air sucked up by the suction nozzle (2) continues to pass through the negative pressure pipeline (6) after entering the water tank (3) along a path from top to bottom and is discharged out by the suction unit (4). The surface cleaning device has a simple structure, and can quickly suck up liquid from the object surface and collect same in the water tank (3).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA portable medical massage apparatus, comprising a vertical round base (1). Supporting adsorption mechanisms are disposed at two ends of the lower surface of a cylindrical hollow cylinder (3); a hammering structure is disposed in the internal center of the cylindrical hollow cylinder (3); a fixing mechanism is disposed on the rear side surface of the vertical round base (1); a vibration massaging mechanism is disposed on a side surface of the cylindrical hollow cylinder (3); a power supplying mechanism is disposed on a side surface of the cylindrical hollow cylinder (3). The portable medical massage apparatus is simple in structure and has great practicality.\nA: Disclosed is a shell of a tyre pressure collector, which shell is provided with a gas guide portion (1) and a main body portion (2) providing an accommodating space, wherein the gas guide portion (1) is in a sleeve shape, has a cylindrical space, and has an opening (10) at one end. One side of the opening (10) is defined as left side, and the side opposite thereto is defined as right side. The axis of the cylindrical space is nominally set as a reference axis. The main body portion (2) is connected to the gas guide portion (1) below the reference axis, the accommodating space of the main body portion (2) is in communication with the cylindrical space of the gas guide portion (1), a pressing portion (12) depressing towards the opening (10) is formed on the right side surface of the gas guide portion (1), and several grasping portions (22) depressing towards the right side of the main body portion (2) are arranged on the left side surface thereof from top to bottom. The shell conforms to ergonomic design, and is suitable for long-term handheld operations.\nB: Disclosed are a sports massage device for relieving muscle soreness after training and a training apparatus, relating to the technical field of fitness facilities. The device comprises a massage means and a mounting frame, wherein the massage means comprises a shell, a rubber mat, protrusions, cylindrical iron, a second spring, a magnet and a cable; and the shell is connected to the mounting frame, the rubber mat covers an opening of the shell, the protrusions are connected to the upper end of the rubber mat, and the cylindrical iron is connected inside the shell; the cylindrical iron, the second spring, the magnet and the rubber mat are sequentially connected; and the cable is used for being connected to an alternating current power supply and is wound around the cylindrical iron, such that the cylindrical iron generates magnetism to drive the magnet to vibrate when the cable is powered on. The sports massage device for relieving muscle soreness after training and the training apparatus have the advantages of a simple structure and requiring no manpower.\nC: A miniature sowing and pushing device for multiple-hole simultaneous operation, comprising a strip-shaped carrying board (1); a storage mechanism is arranged above the strip-shaped carrying board (1), and a lower surface of the strip-shaped carrying board (1) is provided with a discharge mechanism matching the storage mechanism; the strip-shaped carrying board (1) is connected to the storage mechanism by means of a detection mechanism; the lower surface of the strip-shaped carrying board (1) is provided with a mobile support mechanism, and the inside of the strip-shaped carrying board (1) is a hollow structure; a storage battery (21) is arranged in the strip-shaped carrying board (1), and a controller (22) is arranged on a side surface of the strip-shaped carrying board (1). The beneficial effects of the device are: a simple structure and being highly practical.\nD: Disclosed is a device facilitating lifting and capable of directly displaying water quality, comprising a rectangular bearing plate (1), with a first circular groove (2) being provided on an upper surface of the rectangular bearing plate (1). A hemispheric shell (3) is embedded in the first circular groove (2). A centrifugation detection mechanism is provided in the hemispheric shell (3). A water intake mechanism is provided on a side surface of the hemispheric shell (3). A display mechanism is provided on an upper surface of the hemispheric shell (3). A movement mechanism is provided on a lower surface of the rectangular bearing plate (1). A controller (16) is provided on a side surface of the rectangular bearing plate (1). A storage battery (17) is provided on the lower surface of the rectangular bearing plate (1). The storage battery (17) is connected to an input end of the controller (16). The input end of the controller (16) is electrically connected to a first rotating micro-motor (5), a rotating box body (12) and a first electromagnetic shutter (15). The device has a simple structure and high practicability.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a hearing aid nipple, comprising a nipple frame (21), a hollow nipple (22) provided on one side of the nipple frame (21) and a container (23) provided on the other side of the nipple frame (21), with a vibration tongue (25) being arranged in the hollow part of the nipple (22), and the tail end of the vibration tongue (25) being fixed to the nipple frame (21), wherein a microphone (31) for receiving environmental sounds is arranged on the wall of the container (23), and in the container (23) are provided a circuit board (32) electrically connected with the microphone (31) and a vibration sensor (24) electrically connected with the circuit board (32) and used for converting the environmental sounds into a vibration wave. A hook (27) is also arranged on the wall of the container (23) and is in contact with the vibration sensor (24) to transfer the vibration waves. One end of the hook (27) that protrudes from the container (23) is detachably connected with one end of the vibration tongue (25) that protrudes from the nipple frame (21). Using the solution of the present invention enables infants with underdeveloped ear canals to hear environmental sounds, and the vibration tongue does not need to be disassembled during cleaning.\nA: A hidden pacifier, relating to the field of maternal and baby devices, comprising a curved stop plate, a simulated nipple, a protective housing, and a limit ring. One side of the curved stop plate is disposed on the protective housing; the limit ring is provided in the protective housing; one side of the simulated nipple is connected to the protective housing; a stop plate air hole is provided on the curved stop plate, so as to prevent a baby from being unable to breathe due to swallowing by mistake; the side of the simulated nipple is connected to the protective housing by means of a nipple extension ring; the limit ring is annular and is mounted on the protective housing. The beneficial effects of the utility model are that: the limit ring on the device can maintain the nipple protruding state during use of the device without the need for a user to hold the position of the nipple for a long time, so that a baby can perform sucking better, thereby reducing the workload of the user and making the baby more confortable.\nB: A multifunctional energy conservation and environmental protection device. A cavity of a box-type container (20) is divided by separators (23) into five or more compartments (21). An air vent (25) is provided on the upper part of each separator (23), and a water-passing hole (231) is provided on the lower part of each separator (23). A water filling opening (26) with a sealing cover (27) is provided on the top wall or/and a side wall of the box-type container (20), a medium inlet (10) is provided on the left side wall of the box-type container (20), and a medium passing opening (12) is provided on the right side wall of the box-type container (20). A sewage collection tank (35) is provided on the lower side of the box-type container (20), and is in communication with the bottom of the compartment (21) at the medium inlet (10) side by means of a sewage discharging pipe (34). One end of an overflow pipe (24) is in communication with the sewage collection tank (35), and an opening at the other end of the sewage collection tank (35) is located at a water line (29) of one or more compartments (21). A cleaning tank (30) is provided on the bottom wall of each compartment (21). A drain pipe (40) is provided on a side wall of the sewage collection tank (35). Air vents (25) on at least the first separator (23) and the last separator (23) are provided with air filter nets (22). The multifunctional energy conservation and environmental protection device is suitable for processing or recycling waste water or gas comprising dust and impurities.\nC: A spreading box vibration device, comprising a vibration grid (1), a vibration unit (2) and a grid fixing unit (3), wherein the vibration unit (2) is clamped between sub-grids (11) of the vibration grid (1) by means of a recess; the vibration grid (1) is fixed in a spreading box by means of the grid fixing unit (3); the vibration unit (2) further comprises a vibration electric motor (23), an electric motor fixing member (24), an eccentric wheel (25), a drive shaft (26), a control board (27), a magnetic sensor (28) and a magnet (29); the control board (27) is fixed at one end of the vibration electric motor (23); the magnetic sensor (28) is fixed at the end of the control board (27) that is away from the vibration electric motor (23); the drive shaft (26) penetrates the vibration electric motor (23); one end of the drive shaft (26) is fixedly connected to the eccentric wheel (25), and the other end thereof passes through a through hole and is fixedly connected to the magnet (29); the electric motor fixing member (24) is sleeved on the vibration electric motor (23); and the electric motor fixing member (24) is embedded in a recess inside an upper cover (21). In the spreading box vibration device, the vibration unit can generate vibration to drive the vibration grid to vibrate such that materials in the spreading box are in a uniform granule state, thereby achieving more uniform spreading. A spreading box and an unmanned aerial vehicle for use in spreading are further related to.\nD: An ICU-special portable atomizing device enabling autonomously breathing according to airflow, comprising an atomization control host (03), an atomization generator (02), and a tee connecting pipe (01). The atomization generator (02) comprises a bottom housing (21), a medicinal solution tank (22), a medicinal solution outlet (23), an air guide port (24), a nozzle tube (25), a partition (26), and an atomization sheet (27), and is provided with a first circuit board (28) connected to the atomizing sheet (27) in the bottom housing (21). The partition (26) in the nozzle tube (25) separates the interior of the nozzle tube to form an atomization cavity (29) communicated with the medicinal solution outlet (23) and an air cavity (210) communicated with the air guide port (24). A sensor (211) connected to the first circuit board (28) is provided in the air cavity (210). The nozzle tube on one side of the air cavity (210) is provided with a cross-section stopper (212) that blocks the opening of the air cavity. A first ventilation port (213) and a second ventilation port (214) communicated with the air cavity (210) are respectively provided on both sides of the stopper (212). The first circuit board (28) extends to the outside of the bottom housing and is connected to the atomization generator (02).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA hidden pacifier, relating to the field of maternal and baby devices, comprising a curved stop plate, a simulated nipple, a protective housing, and a limit ring. One side of the curved stop plate is disposed on the protective housing; the limit ring is provided in the protective housing; one side of the simulated nipple is connected to the protective housing; a stop plate air hole is provided on the curved stop plate, so as to prevent a baby from being unable to breathe due to swallowing by mistake; the side of the simulated nipple is connected to the protective housing by means of a nipple extension ring; the limit ring is annular and is mounted on the protective housing. The beneficial effects of the utility model are that: the limit ring on the device can maintain the nipple protruding state during use of the device without the need for a user to hold the position of the nipple for a long time, so that a baby can perform sucking better, thereby reducing the workload of the user and making the baby more confortable.\nA: A medical trolley, comprising a medical trolley housing (1). A partition is horizontally arranged in the medical trolley housing (1); the sidewall of the partition is perpendicularly and fixedly connected to the middle of the inner wall of the medical trolley housing (1); the upper and lower sides of the partition are each arranged with a storage box (2); two sides of the storage box (2) are movably connected to the inner wall of the medical trolley housing (1); wheels (8) are fixedly arranged on the lower side of the medical trolley housing (1); two sidewalls of the medical trolley are each arranged with a vertical groove; a support rod (9) is arranged in the vertical groove; two sides of the upper end of the support rod (9) are movably connected to the sidewall of the vertical groove by means of pins; a detachable recycling box (14) is arranged on an underframe of the medical trolley housing (1). According to the medical trolley, by means of the arrangement of a sliding block limiting groove (4) and a sliding groove (5), the storage box (2) can be drawn out from two sides, so that an article can be conveniently placed and taken; the recycling box (14) facilitates sorting, recycling, and disposal of waste and reduces unnecessary workload in a later stage; by means of the arrangement of the support rod (9), a U-shaped baffle (10), and a U-shaped elastic block (11), the medical trolley is not prone to fall; the storage box (2) is coated with a rust-proof layer, so as to prolong the service life thereof.\nB: Disclosed is a hearing aid nipple, comprising a nipple frame (21), a hollow nipple (22) provided on one side of the nipple frame (21) and a container (23) provided on the other side of the nipple frame (21), with a vibration tongue (25) being arranged in the hollow part of the nipple (22), and the tail end of the vibration tongue (25) being fixed to the nipple frame (21), wherein a microphone (31) for receiving environmental sounds is arranged on the wall of the container (23), and in the container (23) are provided a circuit board (32) electrically connected with the microphone (31) and a vibration sensor (24) electrically connected with the circuit board (32) and used for converting the environmental sounds into a vibration wave. A hook (27) is also arranged on the wall of the container (23) and is in contact with the vibration sensor (24) to transfer the vibration waves. One end of the hook (27) that protrudes from the container (23) is detachably connected with one end of the vibration tongue (25) that protrudes from the nipple frame (21). Using the solution of the present invention enables infants with underdeveloped ear canals to hear environmental sounds, and the vibration tongue does not need to be disassembled during cleaning.\nC: Disclosed is a modified starch processing apparatus having a recovery function, the apparatus comprising a protective housing. A rolling wheel is fixedly mounted on both the front and the rear sides of the bottom end of the protective housing; a discharge port is fixedly mounted on the outer side of the bottom end of the protective housing; a control panel is fixedly mounted on a front end surface of the protective housing; and a top protective lid is movably mounted at a middle section of the top end of the protective housing. In the modified starch processing apparatus having a recovery function, the rolling wheels can assist the apparatus in movement, thereby expanding the usage range of the apparatus; the discharge port can assist in discharging stored starch, thereby increasing the practicability of the apparatus itself; and the control panel can assist the apparatus in carrying out control, thereby facilitating the operation of the apparatus. In addition, a suction pump can suck in drifting starch by means of a suction force thereof, which is beneficial for improving the recovery efficiency of starch; and a recessed groove can ensure that a transmission rod flexibly rotates therein, thus helping to expand the suction range of a suction fan.\nD: Disclosed is a vehicle-mounted camera device for intelligent automatic driving, comprising a protective housing. The interior of the protective housing is symmetrically provided with four hydraulic oil pipes; the interior of the protective housing is symmetrically provided with four connecting blocks located on inner sides of the four hydraulic oil pipes; the interior of the protective housing is provided with camera apparatuses located on inner sides of the four connecting blocks; and the interior of the protective housing is symmetrically provided with four connecting rods located between the connecting blocks and the camera apparatuses. The vehicle-mounted camera device for intelligent automatic driving in the present invention relates to the field of automatic driving. By providing a damping spring on one end of each connecting block, vibration of the camera apparatuses can be reduced; by providing the hydraulic oil pipes and telescopic columns, the amplitude of the damping springs can be reduced; and by providing the connecting rods, the connection between the connecting blocks and the camera apparatuses is facilitated, and thus the movement of the camera apparatuses is facilitated, and the risk of damage of the vehicle-mounted camera device for intelligent automatic driving caused by vibration is finally reduced.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA reinforced wound dressing and a preparation method therefor. The reinforced wound dressing comprises a gelatinous fiber material and non-gelatinous fiber reinforcing lines; the gelatinous fiber material is in the form of a non-woven fabric, preferably in the form of a needle-punched non-woven fabric, a hot-melted non-woven fabric, or a chemical bonded non-woven fabric; the non-gelatinous fiber reinforcing lines consist of surface lines and bottom lines, and are interwoven on the gelatinous fiber material along an interweaving track. The dressing is fantastic in concept and obvious in reinforcing effect; the advantages of a gelatinous fiber wound dressing on moisture absorption and wound protection are retained, and the dressing is also conducive to removal of gelatinous fibers as a whole piece during dressing changing, so that the risk that the gelatinous fibers remain on a wound is greatly reduced and thus the dressing is more beneficial for would healing.\nA: Aerogel-modified polypropylene and preparation method therefor, and an ultralight thermal-insulating melt-blown non-woven fabric and preparation method therefor. The preparation method for aerogel-modified polypropylene comprises: before or during a polymerization reaction, adding aerogel to blend with reaction materials having low viscosity, thereby implementing uniform dispersion of the aerogel to prepare aerogel-modified polypropylene, wherein the reaction materials comprise a propylene monomer, a catalyst, and an additive, and the aerogel has granularity falling within the range from 20 nm to 100 μm, porosity falling within the range from 40% to 99.9%, stacking density falling within the range from 3 g/L to 500 g/L, and a volume fraction being 20-60% of the volume of the ultralight thermal-insulating melt-blown non-woven fabric prepared from the aerogel-modified polypropylene. The method can prepare aerogel-modified polypropylene particles having uniformly dispersed aerogel and great melt-blowing performance, and subsequently further prepares an ultralight melt-blown polypropylene non-woven fabric having a thermal insulating function, wherein the aerogel does not shed during the use of the non-woven fabric.\nB: A preparation method for a flexible piezoresistive conductive material, comprising the following steps: placing a non-woven fabric in an oxidant solution for immersion treatment, the non-woven fabric being formed by interweaving and winding a plurality of fibers; removing redundant liquid from the non-woven fabric subjected to immersion treatment, and then performing preheating treatment; placing the preheated non-woven fabric in a 3,4-ethylenedioxythiophene gas atmosphere for polymerization reaction, so as to form poly(3,4-ethylenedioxythiophene) on the surface of any fiber of the non-woven fabric; and using an ethanol solution to clean the non-woven fabric subjected to the polymerization reaction, and then drying same until the ethanol solution is volatilized. According to the preparation method for the flexible piezoresistive conductive material, the resistance change quantity before and after pressurization is large, and the flexible piezoresistive conductive material has relatively high sensitivity to pressure change and has the potential of preparing a piezoresistive pressure sensor.\nC: An extra-soft nonwoven fabric made of a modified nanofiber comprises the following layers sequentially stacked from bottom to top: a base layer; a hydrophilic layer bonded to the base layer; an anti-microbial layer bonded to the hydrophilic layer; and a soft modified nanofiber layer bonded to the anti-microbial layer, the soft modified nanofiber layer being formed by mixing polypropylene, a nano-elastic body and a soft masterbatch and performing fusion, silk-spinning, and a composite nonwoven process on the mixture. Multiple pattern units are uniformly arranged at a surface of the soft modified nanofiber layer away from the base layer. Each pattern unit comprises a first recess and a second recess. The first recess is proximate to the second recess. The first recess has a circular cross-section. The second recess has an S-shaped cross-section. The invention is softer and fluffier, has higher water-absorbing capacity, water-retaining capacity and anti-microbial capacity, and exhibits good hand feel. Also provided is a manufacturing method of the above extra-soft nonwoven fabric made of a modified nanofiber.\nD: Provided is a wound dressing formed by a silicone film layer and an electrospun nano-fibre layer. The preparation method for the wound dressing comprises firstly evenly mixing the silicone, liquid paraffin, n-hexane and Span-80, casting the mixed solution into a mould made of polytetrafluoroethylene by a film casting method, steeping the silicone film in ethanol after drying and film forming, removing the paraffin ingredient so as to obtain a silicone film with a porous structure; and then electrospinning one layer of biodegradable polymer nano-fibre on the silicone film by an electrostatic spinning method, and performing radiation sterilisation after drying to obtain the finished product. The wound dressing prepared by the method has good moisturising properties and air permeability, can moisturise the wound and prevent the formation of a hypertrophic scar; and the unique support effect of the nano-fibre layer thereof can improve the formation of body tissues and speed up wound healing.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multi-function high-frequency tool for an endoscope, comprising an insert portion (1) and a handle portion (2), the insert portion (1) comprising an insulating tip (101), a first electrode (102) having a needle-knife function, a second electrode (104) having an IT-knife function, and a spray head (105); the handle portion (2) comprising a first slider (202), a connector (203), an injection connector (204), and a second slider (206). The second electrode (104) has a hollow structure, and the first electrode (102) extends through the second electrode (104); the proximal end of the first electrode (102) is fixedly connected by means of a mandrel connecting member (109) to the distal end of a mandrel (110); the proximal end of the mandrel (110) is connected to the first slider (202) of the handle portion (2), and moves axially on the handle portion (2) by means of the first slider (202), thereby causing the first electrode (102) to expose from/retract into the second electrode (104). The first electrode (102) having a needle-knife function achieves the functions such as quickly dotting to mark and cutting a mucous membrane; and the second electrode (104) having an IT-knife function is additionally provided with the insulating tip (101) at its distal end, achieving the functions such as dissecting the tissue and burning a bleeding point to stop bleeding.\nA: A pressure detection module (10) provided on an inner surface of a housing (20) of an electronic device. The pressure detection module (10) comprises a first electrode (101) and a second electrode (102). A first surface of the first electrode (101) is fixed to an inner surface of a force input region of the housing (20); the two ends of a second surface of the first electrode (101) are respectively fixed onto the two ends of a first surface of the second electrode (102); and a compressible insulating layer is provided between the second surface of the first electrode (101) and the first surface of the second electrode (102), so that the first electrode (101) and the second electrode (102) form a capacitor. The force input region of the housing (20) drives, according to received external pressure, the first electrode (101) to move toward the direction of the second electrode (102) to cause the capacitance between the first electrode (101) and the second electrode (102) to change, so as to determine a pressure detection result for the external pressure. The pressure detection module (10) can implement pressure detection by merely being mounted on the inner surface of the force input region of the housing (20), without using a bracket, and the thickness of the pressure detection module (10) is small, thereby facilitating the mounting of other components inside an electronic device. The present invention also relates to an electronic device.\nB: A detection mechanism, a radio-frequency ablation catheter and a radio-frequency ablation system. The radio-frequency ablation catheter comprises a handle portion (2), a needle tube portion (1), a central electrode (3) and a detection mechanism. The needle tube portion (1) comprises a first tube sleeve (11) and a second tube sleeve (12), the handle portion (2) comprises a cylinder sleeve (21) and a sliding button (22), the central electrode (3) comprises an electrode body (31), an electrode wire (26) and an electrode connector (23), and the detection mechanism comprises a fixing base (5), a traction wire, a connecting base (6) and multiple claw-shaped electrodes (7). The distal end of the traction wire is fixed on the fixing base (5), the proximal end of the traction wire is fixed on the sliding button (22), and the claw-shaped electrodes (7) are fixed on the fixing base (5) and can penetrate through the connecting base (6) in a sliding manner. Finally, the traction wire is pulled by means of the sliding button (22), thereby driving the fixing base (5) to help the claw-shaped electrodes (7) to be pushed in and pushed out in the connecting base (6), facilitating the control of a user on the claw-shaped electrodes (7) during surgery, so as to measure the temperature or impedance at the claw-shaped electrodes (7), thereby determining the progress of ablation.\nC: A display panel and a manufacturing method therefor, and a display device. The display panel comprises a plurality of display units (1), and each of the display units (1) comprises a first substrate (10) and a second substrate (20) oppositely arranged. The first substrate (10) comprises a first base substrate (101), and a first electrode (102), an electrostrictive layer (103) and a reflection groove (104) arranged thereon. The second substrate (20) comprises a second base substrate (201), and a second electrode (202) and a reflection cavity (203) arranged thereon. A support (30) is arranged between the first base substrate (101) and the second base substrate (201) to keep the distance therebetween unchanged. The reflection groove (104) has a recessed portion (1041). The reflection cavity (203) has a protruding portion (2031), and the surface of the recessed portion (1041) of the reflection groove (104) matches the surface of the protruding portion (2031) of the reflection cavity (203). The first electrode (102) and the second electrode (202) are configured to form an electric field, and the electrostrictive layer (103) can be deformed under the action of the electric fields in the direction perpendicular to the first base substrate (101), so that the recessed portion (1041) of the reflection groove (104) and the protruding portion (2031) of the reflection cavity (203) can be switched between the mode where a gap (431) is formed therebetween and the mode where the surfaces of both are closely attached.\nD: A pressure detection module (10) is disposed on an inner surface of a housing (20) of an electronic apparatus. The pressure detection module (10) comprises: a first electrode (101), a second electrode (102), and a support member (106). A first surface of the first electrode (101) is fixed to an inner surface of a force input region of the housing (20). The support member (106) is fixed to the inner surface of the housing (20), and a fixing position of the support member (106) is spaced apart from a fixing position of the first electrode (101). The support member (106) supports a first surface of the second electrode (102), such that a second surface of the second electrode (102) is opposite to a second surface of the first electrode (101). A compressible insulating layer is provided between the first electrode (101) and the second electrode (102), such that the first electrode (101) and the second electrode (102) form a capacitor. The force input region of the housing (20) drives, according to a received external pressure, the first electrode (101) to move in a direction toward the second electrode (102), such that a capacitance between the first electrode (101) and the second electrode (102) changes, thereby determining a pressure detection result of the external pressure. Pressure detection is achieved simply by installing the pressure detection module (10) at the inner surface of the force input region of the housing (20). The invention does not require a support frame, and the thickness of the pressure detection module (10) is small, thereby facilitating installation of other components inside the electronic apparatus. The invention further relates to an electronic apparatus.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn oxygen mask comprises a mask and an oxygen cannula (2). The mask has an oxygen inlet (3). The oxygen cannula (2) is connected to the oxygen inlet (3). The mask comprises a mask main body (1) and an adhesive seal (4) connected to an edge of the mask main body (1) and fitting the profile of the face. The oxygen inlet (3) is arranged at a middle portion or an upper portion of a central linear protrusion of the mask main body (1). A one-way air outlet (5) is arranged at each of two sides of the oxygen inlet (3). The oxygen mask further comprises a slidable adhesive member (6) slidably sleeved onto the oxygen cannula (2) and attachable to the forehead. The oxygen mask can solve problems in the existing art in which a patient may develop redness, swelling around the auricle, and pain after wearing a mask for a long time, and the mask easily falls off so that oxygen cannot be efficiently supplied to the patient. The oxygen mask is highly comfortable to wear, does not fall off easily, and can efficiently supply oxygen, thus increasing an oxygen utilization rate.\nA: An animal anaesthetic mask assembly, comprising: a mask body (1), wherein the mask body (1) is provided with an air inlet (2), air outlet (3), and a through hole (13), the air inlet (2) and the air outlet (3) are configured to communicate with the interior of the mask body (1), and the air inlet (2) is further configured to introduce a gas mixed with anesthetic into the mask body (1); and a mouth stick (4) provided separately from the mask body (1), wherein one end of the mouth stick (4) is configured to pass through the through hole (13) and be inserted into the oral cavity of an animal to be bitten and fixed by teeth of the animal.\nB: A protective mask (1) that easily vents exhaled gas, comprising a mask body (11) and a nasal mask (12). An inner edge of the mask body (11) is provided with a first sealing ring (111); the nasal mask (12) has a ring-shaped structure, one end of which is in sealed connected with an inner side of the mask body (11), and the other end of which is provided with a second sealing ring (121); when the protective mask (1) is disposed on the face of a user by means of the first sealing ring (111) and the second sealing ring (121), a first chamber (101) covering the nose of the user is formed between the mask body (11) and an inner part of the nasal mask (12); a second chamber (102) covering the mouth of the user is formed between the mask body (11), an outer part of the nasal mask (12), and an inner part of the first sealing ring (111); the protective mask (1) further comprises a filter element (13), a first one-way valve (14) and a second one-way valve (15), and the filter element (13) is used to filter air flowing from an outer side of the mask body (11) into the inner side; the first one-way valve (14) is disposed on the mask body (11) located in the first chamber (101) to allow a gas to flow out from the first chamber (101) to an outer side of the protective mask (1); and the second one-way valve (15) is disposed on the ring-shaped structure of the nasal mask (12) to allow the gas to flow from the second chamber (102) into the first chamber (101).\nC: A wearable monitoring device having an electrocardiogram monitoring function, comprising an oxygen-inhalation mask (1), 12 lead electrocardiogram electrodes (2), a control panel (3), and a flexible sleeve (4). The oxygen-inhalation mask (1) is fixedly connected to the control panel (3) by means of the flexible sleeve (4), a signal wire is provided inside the flexible sleeve (4), and the control panel (3) comprises a microcontroller (31) and a communication port (34). The oxygen-inhalation mask (1) is connected to an oxygen delivery pipe (11), and a joint between the oxygen-inhalation mask (1) and the oxygen delivery pipe (11) is provided with a piezoelectric film sensor (12) used for monitoring the respiratory rate of a patient. One side of the control panel (3) is provided with an electrocardiogram electrode interface (30), the 12 lead electrocardiogram electrodes (2) are connected to the electrocardiogram electrode interface (30) by means of a lead wire (5), and the electrocardiogram electrode interface (30) is electrically connected to the microcontroller (31). The 12 lead electrocardiogram electrodes (2) acquire electrocardiogram signals of the patient, and the microcontroller (31) sends the electrocardiogram signals by means of the communication port (34) to an oscilloscope for display. The monitoring device can supply oxygen to a critical patient for rescue, can also monitor the respiration and electrocardiogram state of the patient at any time, and has a simple structure, making it convenient for the patient to wear.\nD: Provided are a respiratory mask and a ventilation therapy device; the respiratory mask comprises a cushion assembly, an elbow assembly, and a connection assembly arranged between the cushion assembly and the elbow assembly; the cushion assembly comprises a cup (6); the connection assembly comprises a frame (1) and a connection member (2); the elbow assembly comprises an elbow (3); an air discharge passageway (4) is formed between the connecting member (2) and the frame (1) and/or between the cup (6) and the frame (1); the air discharge passageway (4) is arranged so as to guide the exhaled air to disperse to, and be discharged around, the elbow (3). No matter which direction a patient wearing the respiratory mask faces, the air flow will not blow to the other person in the bed; furthermore, since the air flow is emitted in a ring shape, it effectively reduces noise from discharge of exhaled air.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method and system for genetic manipulation of sound-sensitive ion channels. The method comprises: acquiring a sound wave (101); focusing the sound wave on endogenous mechanosensitive ion channels of nerve cells to be stimulated, opening the endogenous mechanosensitive ion channels, and/or focusing the sound wave on exogenous mechanosensitive ion channels of the nerve cells to be stimulated, and opening the exogenous mechanosensitive ion channels, to change a membrane potential of the nerve cells (102). This solution implements noninvasive, accurate, and selectively-specific nerve operation and regulation by means of a sound wave.\nA: Provided are an antibody or a fragment thereof, which can be specifically bound to an S3-4 ring of a voltage sensor paddle of a domain III of voltage-gated sodium channel Nav1.9 α sub-unit, and is able to inactivate a voltage sensor valve to keep sodium ions from entering nerve cells normally. Also provided is an epitope polypeptide specifically bound to the antibody or the fragment thereof, a pharmaceutical composition comprising the antibody or the fragment thereof, and a use of the antibody or the fragment thereof in preparing a drug for treating diseases related to pains.\nB: A neural cell system following the directed induction of human induced pluripotent stem cells (hiPSC) differentiation, an induction method and an application, the method comprising culturing hiPSC in various stages to induce the neural differentiation thereof, the stages comprising: stage a. co-culturing the hiPSC and bone marrow stromal cells (HS5) in an induction culture medium; stage b. continuously culturing the hiPSC by using an HS5 conditioned culture medium; stage c. continuously culturing the hiPSC by using a basic culture medium for culturing neuron cells. The method induces human hiPSC cells to be directionally differentiated into neural system cells, while inhibiting the production of non-neural system cells, thereby obtaining a mature, broad-spectrum neural cell population. The neural cell population has been verified in vitro as mature neurons which release electrical impulses, and has also has been confirmed in mice in vivo to be an effective treatment for nervous system diseases (such as stroke and brain damage).\nC: Provided are a genetically engineered T cell and a pharmaceutical composition using the same. The T cell has an endogenous T cell receptor (TCR) that is inactivated or inactive, comprises encoding of an exogenous receptor bindable to a target antigen, and contains an open reading frame regulated by the exogenous receptor. When the exogenous receptor binds to the target antigen, expression of the open reading frame can be initiated. The T cell has a killing effect on tumor cells and has reduced side effects and enhanced safety.\nD: An ultrasonic neuromodulation apparatus, comprising a planar ultrasonic transducer (100), a Fresnel acoustic lens (200), and an acoustic wave collimator (300), the planar ultrasonic transducer (100), the Fresnel acoustic lens (200), and the acoustic wave collimator (300) being arranged in sequence, a transmitting end of the planar ultrasonic transducer (100) being used for transmitting a planar ultrasonic wave signal, the excitation frequency of the planar ultrasonic transducer (100) being adjustable, and the focal length of the Fresnel acoustic lens (200) increasing or decreasing as the frequency of the planar acoustic wave rises or falls. The ultrasonic focus depth can be adjusted by means of adjusting the frequency of the planar acoustic wave transmitted by the planar ultrasonic transducer (100), providing a simple and convenient method for stimulating brain nuclei of different depths for ultrasonic neuromodulation.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultrasonic treatment device (100) and method, and a data processing device. The method comprises: generating an electric pulse signal having a specific pulse waveform, a preset depth and a preset number of focusing points; generating ultrasonic waves in a preset focusing range and a preset frequency range according to the electric pulse signal, and transmitting the ultrasonic waves to a specific functional area of the brain to intervene and treat a nervous system disease; performing analysis on a brain wave signal by collecting the brain wave signal of the specific functional area of the brain, and adjusting a parameter of the specific pulse waveform when the brain wave signal is abnormal, so that the brain wave signal is recovered to be normal. The brain nerve regulation effect can be achieved by means of the ultrasonic waves; the ultrasonic treatment effect is monitored in real time according to changes of the brain wave signals; parameters of the ultrasonic waves are fed back and adjusted; craniotomy is not needed; noninvasive treatment of the nervous system disease can be achieved, and the operation process is simple.\nA: Disclosed is a transcranial doppler system based on an annular array probe, the transcranial doppler system comprising an annular array probe (100), a transcranial ultrasonic acquisition device (200) and an upper computer (300). The annular array probe (100) transmits an ultrasonic signal into a cranium and sends an echo signal from the ultrasonic signal to the transcranial ultrasonic acquisition device (200); the transcranial ultrasonic acquisition device (200) obtains cerebral blood flow data based on the echo signal and sends the cerebral blood flow data to the upper computer (300); and the upper computer (300) generates a cerebral blood flow spectrum image from the cerebral blood flow data. The annular array probe (100) of the system sends low-frequency pulse signals with different delays into the cranium, such that the low-frequency pulse signals with different delays are focused at a preset depth therein, and the echo signal is received by means of focusing, thus enhancing the echo signal and improving the definition of the cerebral blood flow spectrum image and the detection rate.\nB: A transcranial three-dimensional cerebral blood vessel imaging method: utilizing an automatically scannable annular array probe to send ultrasonic signals that have different delays to different scan positions in the cranium, such that the ultrasonic signals that have different delays are focused on a plurality of preset depths in a beam axial direction so as to detect intracranial cerebral blood vessels by means of focusing the ultrasonic signals; digitally delaying and focusing echo signals of the received ultrasonic signals, such that the echo signals are enhanced so as to improve the spatial form, positional accuracy and signal strength of acquired information of the cerebral blood vessels and/or cerebral blood flow, thereby improving the definition and detection rate of three-dimensional cerebral blood vessels and/or cerebral blood flow images. In addition, the annular array probe (100) has the characteristics of fewer passages and a small volume, and may be worn on the head instead of a TCD monitoring probe, and may thereby achieve the three-dimensional scanning and monitoring of intracranial cerebral blood vessels. Also disclosed is a transcranial three-dimensional cerebral blood vessel imaging system.\nC: A sleep intervention method for improving sleep quality, comprising collecting brain waves generated by a human brain and performing a signal processing thereon (100); comparing the collected brain waves with a pre-stored brain wave template, determining whether a human body enters a corresponding sleep stage (101); recording, if the human body enters the corresponding sleep stage, the current brain wave signal (102); issuing, if the human body does not enter the corresponding sleep stage, a sleep inducing signal to induce the human body to enter the corresponding sleep stage, adjusting same, in real time, until the human body enters the corresponding sleep stage, and recording the current sleep inducing signal (103). The method improves the sleep condition of the human body.\nD: An immune system regulation method and an ultrasonic immunotherapy device. The immune system regulation method comprises the steps of generating ultrasonic waves of specific parameters, transmitting same to a target human body tissue and organ, performing activation or suppression, etc. Also provided is a device structure for implementing immune system regulation. For different immune nervous systems, specific ultrasonic waves are generated and directed onto the nerve nuclei of a target nervous system to stimulate a central or peripheral system, so as to produce an activation or suppression immune effect, thereby achieving the purpose of immunotherapy of diseases.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA biological energy signal extraction and conversion device, comprising: a signal extraction module (10), the signal extraction module (10) enhancing a biological energy signal generated by an original biological energy body, and then extracting the signal; a signal processing module (20), receiving the extracted original biological energy signal and filtering and amplifying the signal, and generating an output energy signal; and a signal output unit (30), being able to enhance an output function in cooperation with a magnetic substance (12), and output the energy signal to a biological energy carrier (40). By shortening the distance between the original biological energy body and a signal receiving unit (13), and using the magnetic substance (12) to enhance and excite the original biological energy body, the strength of the received extracted original biological energy signal is improved because of enhancement, and the noise proportion is greatly reduced, reducing the technical complexity and costs for back-end signal processing, and improving the effect of a biological energy signal.\nA: A bioelectrical signal processing method and device in an implantable closed-loop system. The device at least comprises: a sampling electrode (101), a stimulation electrode (102), an electrical balance circuit (103), an amplification module (104), an analog switch (105), and a microcontroller unit (106); at the beginning of sampling, the analog switch (105) is switchingly connected to the sampling electrode (101) and to the amplification module (104), and a bioelectrical signal acquired by the sampling electrode (101) is subjected to amplification filtering processing of an amplification circuit (1041) and a second-order filter (1042) in the amplification module (104) and sent to the microcontroller unit for analysis; after determining a stimulation signal, the analog switch (105) is triggered to be switchingly connected to the stimulation electrode (102) and to the electrical balance circuit (103), and the stimulation signal is fed back to the stimulation electrode (102) for the treatment of a detected organism; and after the treatment is finished, the electrical balance circuit (103) releases additional charge accumulated and left by applying the stimulation signal by the stimulation electrode (102). Therefore, the accumulated charge generated by means of closed-loop stimulation can be rapidly released, the interference damage to an implant is reduced or avoided, and the acquisition sensitivity of bioelectric signals is improved.\nB: A wastewater flow measuring circuit (1) and device (100). The circuit (1) comprises a microwave transceiver unit (10), used for transmitting a detection microwave signal into a matched pipe (2), and receiving a returned retroreflection microwave signal; a signal processing unit (20) connected to the microwave transceiver unit (10) and used for performing signal processing on the retroreflection microwave signal; a digital-to-analogue conversion unit (30) connected to the signal processing unit (20) and used for converting a signal output by the signal processing unit (20) to a digital signal; a control unit (40) connected to the microwave transceiver unit (10) and the digital-to-analogue converting unit (30) and used for controlling signal transmission of the microwave transceiver unit (10), receiving the digital signal, and outputting a wastewater flow signal according to the digital signal; and a wireless communication unit (50) connected to the control unit (40) and used for sending the wastewater flow signal to an upper computer.\nC: A method for identifying the energy of a micro-energy device on the basis of a BP neural network. The method comprises the following steps: collecting a dynamic voltage of a micro-energy device in an open-circuit state to obtain an original voltage signal, and performing adaptive threshold value wavelet transform processing on the original voltage signal to denoise same (S1); extracting an R-wave peak value of the denoised voltage signal, so as to obtain model input data (S2); establishing a BP neural network model, inputting data to train the model, and stopping training when a training error is less than a predetermined value, so as to obtain a qualified BP neural network model (S3); and using the BP neural network model obtained in step (S3) to identify a voltage signal to be identified (S4). In the method, several characteristic quantities with relatively high influence proportions in energy signal comparison for a micro-energy device are selected, such that relatively accurate and rapid energy identification and classification can be performed, a classification result is reliable, and the anti-interference capability is strong.\nD: A radar signal processing method, a microwave radar, a system and a storage medium. The method comprises: acquiring a plurality of energy information values of a reflected radar signal (S1); determining an energy peak value from the plurality of energy information values by means of spectral peak search (S2); determining, according to the energy peak value and a plurality of adjacent energy information values in the vicinity of the energy peak value, a target energy value corresponding to a target object (S3); and identifying the target object on the basis of the target energy value (S4). In the method, at least one energy peak value and all energy information values at the same distance as the energy peak value are determined by means of acquiring a radar signal reflected by a target object, and a target energy value is then determined according to the energy peak value and all the energy information values, so as to identify the target object on the basis of a target energy value. The data processing process is simple and occupies fewer resources; and the data processing speed and quality are relatively high, thereby facilitating a real-time processing operation for a radar signal.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA patient sitting posture restraining device for particle radiotherapy treatment comprises a base mechanism (1), a backrest mechanism (4) installed at the base mechanism (1), and an arm supporting mechanism (5). The arm supporting mechanism (5) comprises a fastening device (51) and an arm supporting assembly (53). The fastening device (51) is detachably installed at an upper portion of the backrest mechanism (4). The arm supporting assembly (53) is movably connected to the fastening device (51). The arm supporting assembly (53) comprises an arm support (535) for supporting an arm of a patient. The patient sitting posture restraining device can be used to fix the head or torso including the thorax and the abdomen of a patient.\nA: Disclosed are a fixing apparatus for a vehicle instrument panel cross beam and a vehicle. The fixing apparatus comprises a base plate (1), a connecting part (2) and a fixed beam (3), wherein the base plate is provided with a connecting hole (11); a first end of the connecting part (2) in the vertical direction is fixed with the base plate (1) and a second end is provided with an elongated hole part; and a first end of the fixed beam (3) in the vertical direction has a sliding column (5), the sliding column (5) is slidably arranged in the elongated hole part, and a second end of the fixed beam (3) in the vertical direction is suitable for fixing the vehicle instrument panel cross beam. The fixing apparatus can reduce processing tolerance in the mounting process of an instrument panel cross beam, thereby improving the trimming aesthetic property of a whole vehicle.\nB: Provided in the present application is a head and neck stabilizing apparatus, comprising a stabilizing base, replaceable frames, a first cover assembly and a second cover assembly, the stabilizing base comprising a stabilizing bottom plate and a support base, the support base being disposed on the stabilizing bottom plate, a head placement gap being left between the upper end of the support base and the stabilizing bottom plate; there are multiple replaceable frames, the multiple replaceable frames having different thicknesses, and any one replaceable frame being disposed on the support base; the first cover assembly is disposed on the support base, the second cover assembly being disposed on a replaceable frame, and the first cover assembly and the second cover assembly being capable of forming a head placement cavity and a neck constraint part. The head and neck stabilizing apparatus of the present application may be used in radiation therapy for malignant tumors in the head, having ideal stabilizing results for the head and the neck of a person, increasing stabilizing accuracy of the head and neck of the person, causing a patient to be able to obtain ideal treatment results when undergoing radiation therapy for malignant tumors in the head.\nC: An arm-held photography support, comprising a connecting seat (1), support arms (2) being connected to the connecting seat (1), one end of each of the support arms (2) being provided with an arm-holding member (3) for abutting against a human arm. The arm-held photography support has a light structure and can be used both for bearing weight and for reducing shake, obtaining a more stable photographic image.\nD: A handle (4) having an arm support for use with video recording equipment, comprising a handle gripping part (42) and a connecting part (2), which is used for connecting directly or indirectly with video recording equipment, and further comprising an arm support (5) connected to one end of the handle gripping part (42), the arm support (5) being a mechanical structure of a fixed shape capable of bearing a load. A rear end of the arm support (5) can support the lower part of the user's arm, making it possible to use principles of leverage to greatly reduce strain on the wrist, making the user less susceptible to tiring, and making hand-held operation more flexible. The present handle exhibits a reasonable structure, and is more effort-saving and comfortable when being used for hand-held filming, while also helping to maintain stability over long periods of filming and improving filming results.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA medical moisturizing eye patch and a preparation method therefor. The eye patch consists of a protective layer, a gel layer and a backing layer. The gel layer is formed by compounding component A which has good biocompatibility, and component B which has moisturizing ingredients. Component A is a pre-treated wet film of bacterial cellulose; component B comprises the following raw materials in percentage by mass: 0.5%-5% of glycerol, 0.05%-5% of sodium hyaluronate with a molecular weight higher than 500,000, 0.05%-5% of sodium hyaluronate with a molecular weight of 1,000-500,000, 0.05%-0.3％ of paraben, the balance being water. The moisturizing effect of the eye patch is long-lasting.\nA: A gel of sodium hyaluronate cross-linked by a polyethylene glycol epoxy derivative for injection and a preparation method thereof are provided. The polyethylene glycol epoxy derivative is preferably a compound having a single molecular weight, and a molecule of the compound includes a plurality of ether bonds, and has high water solubility, such that the compound is easily cross-linked with polysaccharides. In addition, since the number of repeating units of polyethylene glycol is more easily adjusted, the chain length thereof is more easily regulated. Therefore, the function of the sodium hyaluronate gel prepared by polyethylene glycol as a cross-linking agent is more easily regulated. The advantages of the cross-linked gel of sodium hyaluronate include low toxicity, low residue, low pushing force, good plasticity, good enzyme resistance, and long in-vivo time. A moderate inactivation process of the cross-linking agent is further disclosed. In the gel, unreacted epoxy groups can be hydrolyzed under a carbonate buffering system of pH 8-9, in order to effectively reduce the difficulty of removing impurities from the cross-linked gel of sodium hyaluronate, avoiding the use of toxic BDDE as a cross-linking agent in the art.\nB: Provided is a hydrating mask. A preparation method for the hydrating mask comprises the following steps: (1) mixing a solute comprising glycerin, hyaluronic acid, polyethylene oxide, urea, allantoin, and sodium pyrrolidone carboxylic acid with a solvent to obtain a spinning solution; (2) electrospinning the spinning solution obtained in step (1) to one side of a mask substrate to form a viscous nanofiber layer on the surface of the mask substrate; and (3) adhering a protective layer to the surface of the viscous nanofiber layer obtained in step (2), to obtain the hydrating mask.\nC: The invention relates to cross-linked sodium hyaluronate gel for tissue filler for plastic surgery and a preparation method thereof. The gel is prepared by enabling sodium hyaluronate alkaline solution, epoxy group containing long-chain alkane and epoxy group containing cross-linking agent to react for 2-5 hours at 35-50°C, then washing, gelling and sterilizing, wherein the molar ratio of the sodium hyaluronate alkaline solution, the epoxy group containing cross-linking agent to the epoxy group containing long-chain alkane is 10:4-1:1-4, and the number of carbon atoms of the epoxy group containing long-chain alkane is 6-18. The gel according to the invention has the advantages that on one hand, enzymolysis resistance can be effectively improved, and the gel is more stable; and on the other hand, the excellent intrinsic biocompatibility of the sodium hyaluronate can be maintained, and injectability is unaffected.\nD: Disclosed are an injection filling material and a preparation process. The filling material comprises the following raw materials in terms of percentage by mass: 0.1-2% of sodium hyaluronate, 1-30% of polyester microspheres, 0.1-5% of silk fibroin, 0.01-1% of recombinant type III collagen, with the balance being a dispersion liquid. The polyester material is artificially synthesized; the sodium hyaluronate and recombinant protein are prepared by means of a fermentation method; the silk fibroin is extracted from secretions of mulberry silkworms instead of animal tissues, and compared with collagen extracted from animal tissues, a decellularized matrix is biologically safer; and the added polyester microspheres can produce a sustained-release effect on a system, prolong the duration of validity of the filling material, and the filling material lasts longer compared to a single-component material. The filling material comprises type I collagen (silk fibroin), type III collagen (recombinant protein) and a carbohydrate nutrient substance (hyaluronic acid), which are required for tissue production, and can provide a complete external environment for tissue production.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fully encapsulating one-way circulation ventilation type protective clothing, comprising a conjoined garment (1). A head sheath (2) is provided at the top of the conjoined garment (1). Gloves (4) are provided at the bottom of arms on both sides of the conjoined garment (1). A sealing zipper (5) is inclinedly provided on the left side of the front surface of the conjoined garment (1). A transparent mask (6) is provided on the front surface of the head sheath (2). The protective clothing is further provided with a flat air inlet (8), an air inlet hose (9), an automatic exhaust valve (10), a mute exhaust pump (11), and a mute oxygen-enriched air supply pump (20). The protective clothing is communicated with the outside by means of air intake and exhaust, and the mute exhaust pump (11) and the automatic exhaust valve (10) form a one-way channel where a gas flows outwards. By means of the mutual cooperation between an antivirus filtering net (12) and an antivirus filtering cover (19), viruses can be prevented from entering the protective clothing while effectively supplying oxygen, and the problems of oxygen deficit and hypoxia due to the fact that medical staffs wear the protective clothing are effectively solved.\nA: Provided is an inflator pump using a cone valve, comprising a pump body (1), an air inlet and outlet valve plate (2), and an air inlet and outlet end panel (3). A piston rod (6) able to move up and down is arranged vertically inside the pump body (1). An eccentric wheel (5) is mounted in an inner mounting hole in the upper end of the piston rod (6) and a leather cup (7) is mounted at the lower end of the piston rod (6). The air inlet and outlet valve plate (2) is mounted at the lower end of the pump body (1), and several air inlet holes (14) and air outlet holes (13) are uniformly arranged respectively at the peripheries of two through-holes provided in the air inlet and outlet valve plate (2). A conical air inlet valve slot (12) is arranged on the upper end of the air inlet hole (14), and an air inlet valve (10) is mounted in the air inlet valve slot (12). A conical air outlet valve slot (11) is arranged on the lower end of the air outlet hole (13), and an air outlet valve (9) is mounted in the air outlet valve slot (11). An air outlet connecting tube (4) in communication with an air outlet chamber (16) is mounted in a sidewall of the air inlet and outlet end panel (3). The inflator pump uses the cone valve. Since the valve is cocked at the periphery, after entry or discharge of air, the elasticity of the valve is used to seal the air inlet hole (14) and the air outlet hole (13) quickly so that the return of high-pressure air is effectively prevented, thus ensuring that the direct-driven inflator pump can be started under high pressure.\nB: A portable automatic tourniquet (100) comprising a cuff (1). A gas intake valve (10) is provided on the outer surface (12) of the cuff (1). The gas intake valve (10) is connected to a gas pressure control apparatus (3) via a gas intake tube (4). A gas pressure sensor (13) is provided on the inner surface (11) of the cuff (1). A gas inlet (35) and a gas outlet (36) are provided on the gas pressure control apparatus (3). The gas pressure control apparatus (3) comprises a microcontroller (30) and a miniature gas pump (33). The gas pressure sensor (13) is used for detecting the gas pressure in the cuff (1). The microcontroller (30) is used for controlling, on the basis of the gas pressure in the cuff (1), the miniature gas pump (33) to draw a gas via the gas inlet (35) to inflate the cuff (1) or controlling the miniature gas pump (33) to discharge the gas in the cuff (1) via the gas outlet (36) to automatically regulate the pressure that the cuff (1) applies to a wound surface for bleeding control of the wound surface. The apparatus (100) effectively prevents ischemic necrosis of muscle tissues at the wound surface due to excessive bleeding control pressure being applied by the cuff (1) to the wound surface and poor bleeding control effects due to insufficient bleeding control pressure being applied to the wound surface.\nC: A positive-pressure respiratory droplet-free protective clothing, comprising a large-volume protective clothing body (100) sleeved on the upper body and the head of a human body, and further comprising a filter head (200) and an air supply device (300). The filter head (200) is connected to the air supply device (300), and the air supply device (300) is communicated with the large-volume protective clothing body (100) by means of a pipeline (400); the lower end of the large-volume protective clothing body (100) is provided with a first through hole (110) and two second through holes (120); the two second through holes (120) are respectively formed on two sides of the first through hole (110); the first through hole (110) allows for passthrough of the upper body of the human body, and the second through holes (120) allow for passthrough of the human hands; the large-volume protective clothing body (100) is further provided with two reverse gloves (130) facing towards the large-volume protective clothing body (100), and the reverse gloves (130) are respectively formed in front of the upper body of the human body. After a user wears the positive-pressure respiratory droplet-free protective clothing, the user can take food and drink water and the like in a clean air environment; moreover, the large-volume protective clothing body (100) has a large enough space to provide the user with adequate oxygen for breathing and air-exchange, and heat dissipation and better use experience is realized.\nD: A wind-powered air compression apparatus comprising a windmill, an elliptic cam (2), a cylindrical container (4), a protruding component (16), a piston (5), a flexible component (8), and an air storage container (6). The windmill and the elliptic cam (2) are fixedly connected. A rotary shaft (4) of the windmill runs perpendicularly through the center of the elliptic cam (2). The cylindrical container (4) is provided at the bottom part thereof with an air inlet and an air outlet. The air inlet is provided with a one-way air inlet valve (9). The air outlet is provided with a one-way air outlet valve (10). The protruding component (16) is fixedly connected to the upper part of the piston (5). The piston (5) is arranged within the cylindrical container (4) and is connected to the bottom part of the cylindrical container (4) via the flexible component (8). The cylindrical container (4) is connected to the air storage container (6) by means of an air duct via the air outlet. The apparatus is capable of converting wind power into air power that can be stored and transported over long distances.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA wearable three-chamber negative oxygen ion breathing apparatus comprises a breathing chamber (1), an air inlet device disposed on one side of the breathing chamber (1) and an air outlet chamber (2) disposed on the other side of the breathing chamber (1). The air outlet chamber is in communication with the outside. The interior part of the air inlet device is in communication with the interior part of the breathing chamber (1) via a one-way air inlet valve. The interior part of the air outlet chamber (2) is in communication with the interior part of the breathing chamber (1) via a one-way air outlet valve. Respective sides of the air outlet chamber (2) are provided with a wearing mechanism. The air inlet device is provided with an air purifying negative oxygen ion generating device having a negative oxygen ion emitter (3) extending into a purifying chamber (4). The air purifying negative oxygen ion generating device is connected to a battery (5) via a cable. One side of the purifying chamber (4) is provided with an air inlet (6) in communication with the outside. The structural design of the wearable three-chamber negative oxygen ion breathing apparatus is reasonable, in that the air inlet device provides a dedicated one-way air inlet pathway, and the air outlet chamber provides an one-way air outlet pathway, providing low breathing resistance, allowing easy breathing and preventing exhaust gas accumulation. A large quantity of negative oxygen ions generated in the purifying chamber purifies air, kills bacteria and has a good air purifying effect.\nA: Provided is a snorkeling mask with a breathing system, including a mask (1) and a breathing tube (2) located above the mask (1), wherein the mask (1) includes a panel (3) and a wrapping part (4) engaged with the panel (3), a breathing cavity (5) is formed between the wrapping part (4) and the panel (3), the breathing tube (2) is provided with an air intake tube (21) through the mask (1) to the breathing cavity (5), the wrapping part (4) includes a surface support part (41) and a breathing part (42), the breathing part (42) is provided with an inhalation device (6) and a mouth exhalation device (7), at least one one-way air intake valve (61) is provided on the inhalation device (6), the mouth exhalation device (7) is provided with a one-way air outlet valve (71) connected to the panel (3), an exhaust passage (8) is provided on the panel (3) corresponding to the position of the one-way air outlet valve (71) extending outside the mask (1), and the exhaust passage (8) is covered by a breathing cover (9). The snorkeling mask has stable exhaust, and simplifies the structure of the breathing tube, simultaneously minimizes the exhaust passage, the exhaust gas is finally discharged through both sides of the mouth part, so that the exhaust gas discharged does not affect the visual field, and the ventilation is directly and quickly completed.\nB: A vehicle-mounted electrostatic air purifying apparatus and a purifier, comprising: a housing (1) and an ion generator (2) which is provided inside of the housing (1); an anion emitting head (3) and a cation emitting head (4) which are electrically connected to the ion generator (2) are provided on the surface of the housing (1); a direct current power source assembly (5) which is connected to an input end of the ion generator (2) is provided inside of the housing (1), wherein the direct current power source assembly (5) has a built-in static electricity isolation power source, and an input end of the direct current power source assembly (5) is also connected to a power supply interface. Negative oxygen ions generated by the anion emitting head (3) may effectively purify hazardous dust particles smaller than a size equivalent to PM2.5 from air inside of a vehicle, which complements a built-in filter system in the vehicle to further purify the air inside of the vehicle, and protect the health of people in the vehicle. While generating anions, the static electricity isolation power source may effectively reduce damage that accompanies generated static electricity that is done to an internal circuit board and elements of the product and thus the electrical circuitry of the vehicle so as to ensure the operational stability of the product and the quality of the product.\nC: Glasses for breathing purified air, said glasses comprising two air filters, a left air filter and a right air filter, two side air delivery tubes (11, 12), a left side air delivery tube and a right side air delivery tube, an air curtain jetting and air delivery device, and a dual-eye protective cover, the left and right air filters each comprising a filter housing, a composite filtering layer, a built-in air sensor, a smart sensing chip, a dual-channel variable turbofan (13), a micro-motor (17), a battery (14), a power source control switch (15), and a lower portion air delivery conversion connection port. The air curtain jetting and air delivery device forms an air curtain separation layer A by jetting from within upper and lower air curtain air outlet grooves (31, 32) and two breathing air delivery holes (33), surrounding unclean air is blocked, and a large amount of the clean air jetted from within the two breathing air delivery holes (33) is for a user to breathe. A portable external air filter (50) is arranged for a long-time wearing mode. The face is not covered much during use, and facial expressions are not affected during exchanges. Unclean air may be separated for a short time and a long time, reducing the amount of dust, smoke, plant pollen, bacteria, fine particles etc. inhaled into the body, and preventing air-born infectious diseases.\nD: A method and device for producing negative oxygen ions, and a method and device for purifying air, the method for producing negative oxygen ions comprising: introducing air and water into an air-water reactor to enable the introduced air and water to achieve a relative velocity of more than 20 m/s and react within the reactor to produce negative oxygen ions; and after reacting, separating the air containing the negative oxygen ions from the water, and releasing the air containing the negative oxygen ions to the required space. The method and device can produce a large quantity of negative oxygen ions and purified air with high efficiency at low cost, without producing ozone, nitric oxide and other harmful substances, and is long-acting and free of maintenance.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA weighted-resistance, endurance and balance strength training device. Two antiskid slide plates (2) are disposed at two footings (10) of a main connecting frame (8). Weighted rods (1) and a short weighted rod (3) are disposed at the center of the main connecting frame (8). Two weighted-rod insertion holes (11) are formed in the main connecting frame (8) in a transverse direction and a longitudinal direction. Two adjustable hook plates (9) are disposed at the outer side of the main connecting frame (8). The main connecting frame (8) is connected to a front connecting frame (7). A pulley (5) convenient to move is disposed at the other end of the main body of the front connecting frame (7). The short weighted rod (3) is disposed on the front connecting frame (7). Also provided is a manufacturing method for the weighted-resistance, endurance and balance strength training device.\nA: The utility model discloses an anti-smashing strength training device, which comprises a bottom plate, both ends of the upper surface of the bottom plate are provided with adjusting devices, the side of a first vertical plate of the adjusting device is provided with a positioning device, and the upper surface of a second vertical plate of the adjusting device is provided with a fixing plate, the side of the fixing plate is provided with a strip hole, and a support device is arranged inside the strip hole, both ends of the side of a first screw rod of the support device are threadedly connected with two second nuts, and the side surface of the second nut is in contact with the side surface of a counterweight, the upper end of the side surface of the fixing plate is provided with a cylindrical nut, and the inner part of the cylindrical nut is provided with a stabilizing device, and the second screw rod of the stabilizing device is threadedly connected with the cylindrical nut. The anti-smashing strength training device has a simple structure, can be disassembled and folded, can reduce the occupied area of the entire training device, save space, and is convenient for people of different body types to perform strength training, and is convenient to use.\nB: A shear-fork type feeding device, comprising a cross beam (1), an inner shear-fork bracket (3), an outer shear-fork bracket (4), and a chuck framework (2). The upper end of the inner shear-fork bracket is connected to an inner U-shaped connecting frame (7). The upper end of the outer shear-fork bracket is connected to an outer U-shaped connecting frame (8). A linear guide rails (9) is provided at both sides of the cross beam, separately. A sliding block (10) is provided at inner walls of the inner U-shaped connecting frame and the outer U-shaped connecting frame, separately. A lifting drive motor (11) is provided on a rear side plate of the outer U-shaped connecting frame, and a drive sprocket (12) is provided at an output end of the lifting drive motor. A transition sprocket (13) is provided at the inner side of the rear side plate. A sliding seat (14) is provided at the rear side of the cross beam. A tension sprocket (15) is mounted at the front side of the sliding seat. A chain (16) is wound on the drive sprocket, the transition sprocket, and the tension sprocket. One end of the chain is fixedly connected, and the other end is connected to an external connecting hinge pin (6). A horizontal drive motor (17) is provided on a front side plate of the outer U-shaped connecting frame. A gear is mounted on an output end of the horizontal drive motor, and the gear matches with a rack (18). The shear-fork type feeding device is simple in structure, can realize large material taking stroke, and the space occupation is smaller.\nC: Provided are a seat and a bicycle having said seat; the seat comprises a seat body (6) and a U-shaped connection frame (7); said U-shaped connection frame (7) is fixedly connected to a seat frame (4); said seat body (6) is hingedly connected to the U-shaped connection frame (7); the U-shaped connection frame (7) is arranged horizontally; the distance between the two sides of the U-shaped connection frame (7) is greater than the thickness of the seat; the seat body (6) can turn over. Using the described seat, it is possible, upon parking the bicycle, to turn over the seat body and thus prevent the seat from getting wet in the rain and being exposed to the sun.\nD: Disclosed is an efficient lock shackle machining device. The efficient lock shackle machining device comprises a rack (1). A horizontal plate (2) is fixedly connected to the rack (1); first guide wheels (3) and second guide wheels (4), which are provided with a gap therebetween, are rotationally arranged on one side of the horizontal plate (2); a rotary disc (7) is arranged on another side of the horizontal plate (2), a circular center fixing block (8) is fixed to the middle of the rotary disc (7), and a circular bending block (9), fixed to the rotary disc (7), is arranged on one side of the center fixing block (8); a guide pipe (10) fixed to the horizontal plate (2) is arranged between the gap and the rotary disc (7), an extension line at one end of the guide pipe (10) is aligned with the gap, and an extension line at the other end of the guide pipe (10) is arranged at a position between the center fixing block (8) and the circular bending block (9); and a cutting-off frame (11) is fixed to the horizontal plate (2), a connecting frame (13) is fixed to the top of the cutting-off frame (11) by means of a telescopic rod (12), a cutting-off cutter disc (14) and a grooving cutter disc (15) are rotationally connected to the connecting frame (13), and the grooving cutter disc (15) is located below the cutting-off cutter disc (14). The efficient lock shackle machining device not only can reduce the labor intensity for workers, but also has the advantages of having a high machining efficiency, a high yield and high conveying stability.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an assisted-training system and method for billiards. The system comprises a camera, a client end and a server, wherein a user can select a subject for training according to requirements, and then the trajectory of motion for each ball is compared with an evaluation standard corresponding to the subject for billiards training and analysed to obtain a training result. The system accurately judges whether a ball strike has been successful at the present time by means of billiards strike data, aiding in performing a scientific classification of the level of a player and an accurate analysis of the ball strike of the player, and providing detailed suggestions on rectification and improving the effects of the training.\nA: A projection type billiard system gesture/billiard-rod control system and an implement method thereof. The system comprises an image capture device (7), a projection device (6) and a computer (3). The signal output end of the image capture device (7) is connected to the input end of the computer (3). The input end of the projection device (6) is connected to the output end of the computer (3) and controlled by the computer (3). A hollow billiard lighting lamp (4) and an infrared light supplementary lamp (5) are further provided. The method includes that the computer (3) controls the projection device (6) to project an operation interface comprising various function buttons in a system program on a table surface of a billiard table (8). The computer (3) controls the image capture device (7) to capture images in the scope of the table surface of the billiard table (8) in real time. Background comparison analysis and previous-frame comparison analysis are carried out on current images, and a changed image area in the images is further obtained. The part, close to the billiard table (8), in the changed area is set to be the initial end of the changed area, and the other end is the tail end of the changed area. When the residence time of the tail end in a certain function button area scope of the operation interface is longer than a preset time, it is considered that the button is clicked and selected by a user, and the computer (3) operates the corresponding system function.\nB: The present disclosure relates to a training method based on multi-dimensional movement ability recognition. The technical solution comprises: constructing an action library consisting of multiple pieces of standard action data; collecting movement image information of a training object, and correspondingly calibrating key nodes and intermediate nodes in extracted key frames; on the basis of movement transformation states of the key nodes in the key frames, performing simulation and calculating movement vectors of the key frames, and, referring to intermediate nodes, performing analysis and calculation on the movement vectors to obtain ability values of the flexibility, agility, and strength of the training object for practicing corresponding standard movements; determining whether the training object is qualified according to the ability values, and according to unqualified movement abilities, generating a training plan after selecting a corresponding video stream from the action library. By means of the multi-dimensional movement ability recognition and analysis on the flexibility, agility, and strength of the training object, targeted training can be carried out accurately according to the flaws of the training object, the error in training purpose is small, and the training effects are significantly improved.\nC: A method and system for competitive state assessment of athletes. The method comprises: controlling an acquisition module (61) in a wearable apparatus to acquire physiological data of an athlete (S101); calculating competitive state parameters of the athlete, and assessing whether the competitive state of the athlete satisfies training requirements (S102); if the competitive state of the athlete satisfies the training requirements, outputting a training permission prompt (S103); and if the competitive state of the athlete does not satisfy the training requirements, outputting a training prohibition prompt (S104). After acquiring the physiological data of the athlete, the wearable apparatus calculates the competitive state parameters of the athlete, and assesses the competitive state of the athlete on the basis of the competitive state parameters, so that more accurate and reliable competitive state assessment for athletes can be achieved. By automatically determining, after obtaining a competitive state of an athlete, whether the athlete satisfies training and competition requirements according to the competitive state, and outputting a corresponding prompt, the athlete can intuitively know whether own current competitive state is suitable for training and competitions.\nD: The present disclosure relates to a training method based on multi-dimensional movement ability recognition. The technical solution comprises: constructing an action library consisting of multiple pieces of standard action data; collecting movement image information of a training object, and correspondingly calibrating key nodes and intermediate nodes in extracted key frames; on the basis of movement transformation states of the key nodes in the key frames, performing simulation and calculating movement vectors of the key frames, and, referring to intermediate nodes, performing analysis and calculation on the movement vectors to obtain ability values of the flexibility, agility, and strength of the training object for practicing corresponding standard movements; determining whether the training object is qualified according to the ability values, and according to unqualified movement abilities, generating a training plan after selecting a corresponding video stream from the action library. By means of the multi-dimensional movement ability recognition and analysis on the flexibility, agility, and strength of the training object, targeted training can be carried out accurately according to the flaws of the training object, the error in training purpose is small, and the training effects are significantly improved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a child rocking chair, comprising lateral plates (1), a back plate (2), a sitting plate (3), a first support plate (4), a second support plate (5), a foot plate (6), a third support plate (7) and a handle rod (8), wherein two sides of the back plate (2) are respectively provided with one of the lateral plates (1) symmetrically arranged with each other, the sitting plate (3) is provided between the two lateral plates (1), and the sitting plate (3) is positioned below the back plate (2); and the first support plate (4), the second support plate (5) and the third support plate (7) are also provided between the two lateral plates (1). The rocking chair has a simple structure, is convenient to manufacture, has the function of limiting, and improves safety performance.\nA: Ad anti-theft book box, comprising an inner box body and an outer paper shell that are combined. The outer paper shell wraps the exterior of the inner box body; the inner box body comprises a bottom plate (1), a back plate (11), a front plate (12), and two side plates (13); a connecting cover is rotatably connected to the top of the back plate (11) by means of a hinge shaft (15); the connecting cover comprises a rotating plate (2) and a supporting plate (21); the supporting plate (21) is located at the lower part of the rotating plate (2) and is connected to the rotating plate (2) by means of a sloping plate (22); the supporting plate (21) is provided with a lock groove (3); a coded lock is provided in the locking groove (3); the coded lock comprises a lock body (4); a locking piece (41) and a lower clip (42) are rotatably connected to the lower part of the lock body (4); the lock body (4) is provided with an upper clip (43); a clamping plate (14) is obliquely provided at the top of the front plate; the locking piece (41) is located at the lower part of the clamping plate (14) and is capable of clamping the clamping plate (14); one end of the supporting plate (21) is provided with a shelving plate (23), and the shelving plate (23) can be placed above the clamping plate (14). The anti-theft book box has reasonability in design and high safety, and is convenient to carry and use.\nB: A positioning and clamping device for garment processing, the device comprising an operation table (1) and a plurality of supporting legs (2) arranged at the bottom end of the operation table (1), wherein two connecting plates (3) are arranged on the operation table (1); both ends of the connecting plate (3) located on the left side are connected to first connecting sliding rods (4); both ends of the connecting plate (3) located on the right side are connected to second connecting sliding rods (5); first sliding blocks (15) are arranged on the first connecting sliding rods (4) and the second connecting sliding rods (5), respectively; the front side face and the rear side face of the operation table (1) are respectively provided with first sliding grooves (6) for allowing the first sliding blocks (15) to slide therein; a supporting plate (12) is arranged below the operation table (1); two transmission mechanisms, which are symmetrical to the front and rear, are arranged on the supporting plate (12); each transmission mechanism comprises a first rack bar (7), a second rack bar (8) and a gear (9); bottom ends of the connecting plates (3) on the two sides are provided with clamping plates (18), respectively; and the connecting plates (3) on the two sides are provided with pushing mechanisms, respectively. The requirements for fixing garments of different sizes can be met; and by means of providing first springs (22) and second springs (26), the rigid contact between the clamping plates (18) and the surface of a garment can be avoided, such that the surface of the garment is prevented from being damaged.\nC: Disclosed is a rocking chair for children, the rocking chair comprising a seat body (1), a supporting frame (2), a seat body limiting mechanism (3), a driving electric motor (5), a driving electric motor power output portion (6), and a rotating shaft (7). One end of the rotating shaft (7) is fixedly connected to the driving electric motor power output portion (6); the seat body (1) pivots around the other end of the rotating shaft (7); when the rotating shaft (7) rotates, the pivot point between the other end of the rotating shaft (7) and the seat body (1) moves relative to the fixed connection point between one end of the rotating shaft (7) and the driving electric motor power output portion (6) at a certain distance; the driving electric motor (5) and the driving electric motor power output portion (6) are arranged on a mounting box (8); the mounting box (8) is fixedly connected to the seat body (1); and the seat body limiting mechanism (3) can limit, when the driving electric motor (5) drives the rotating shaft (7), an included angle between the seat body (1) and the rotating shaft (7) to be kept within a set angle for forward and reverse rotation in a reciprocating manner. The rocking chair is simple in terms of structure, low in cost, large in terms of swing amplitude, stable in terms of seat body and capable of carrying out two different swing manners at the same time.\nD: A lifting/lowering test platform and method for marine instruments and devices, the platform comprising a bottom plate (1). First side plates (2) are fixedly installed on two sides of the bottom plate (1); a first support plate (5) is slidably installed on each of the two first side plates (2); a second support plate (6) is fixedly installed on each of the two first support plates (5); a third support plate (7) is fixedly installed at the bottom of each of the two second support plates (6); a plurality of installation holes (8) are formed on both the two third support plates (7); electric push rods (9) are fixedly installed on two sides of the bottom plate (1); the output shafts of the two electric push rods (9) are respectively fixedly connected to the two second support plates (6); two second side plates (10) are symmetrically and fixedly installed on the top of the bottom plate (1); a top plate (11) is fixedly installed on the tops of the two second side plates (10); an operation plate (13) is slidably installed above the top plate (11); and two expansion plates (24) are symmetrically and slidably installed on the operation plate (13). The lifting/lowering test platform has a large operation area and high operation stability and is convenient to use.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA single-joint water machine fish comprises a housing, a main board cabin (200), a motion control cabin (300), and a battery cabin (400). The outer contour of the housing is in a bionic fish shape. One end of the housing is a front housing (110), and the other end is of a bionic fishtail structure (120). The front end of the main board cabin (200) is mounted at the inner side of the front housing (110) in a matching manner. A lens set (230), an eccentric anti-shake mechanism (240) and a main PCB are disposed in the main board cabin (200). The motion control cabin (300) is connected to the rear end of the main board cabin (200), a three-axis linkage device (330) and a transmission device (340) are disposed in the motion control cabin (300), and the battery cabin (400) is located below the motion control cabin (300). The single-joint water machine fish is specially design, can implement the functions of water depth detection, water quality monitoring, underwater photography, underwater exploration, fish school detection, feeding, drug delivery, underwater engineering acceptance and underwater communication, underwater salvage, underwater rescue, seaborne rescue, sea, river, lake bed surveying and mapping, underwater drilling and flaw detection and the like.\nA: A leg-arm-propeller combined underwater robot, comprising: a machine frame (1), an operating mechanism (2), a walking mechanism (3) and a propulsion mechanism (4), wherein the walking mechanism (3) is suitable for implementing the walking of the leg-arm-propeller combined underwater robot; the propulsion mechanism (4) is suitable for implementing the in-water floating movement of the leg-arm-propeller combined underwater robot; the operating mechanism (2) comprises a first mechanical arm (210), a second mechanical arm (220) and a first installation seat (230), and the first installation seat (230) is detachably connected to the machine frame (1); and the first mechanical arm (210) and the second mechanical arm (220) are both rotatably connected to the first installation seat (230), and the rotating center of the first mechanical arm (210) is the same as that of the second mechanical arm (220).\nB: Disclosed are a balance stabilization device for a camera and a control system thereof. The balance stabilization device comprises a mainboard chamber (1), a supporting seat (2), a transverse arm (3), a first door-shaped supporting frame and a second door-shaped supporting frame, wherein the tail end of the supporting seat (2) is movably installed on the top end of the mainboard chamber (1), and the front end of the supporting seat (2) faces the direction of the front surface of the mainboard chamber (1), and the supporting seat is perpendicular to the mainboard chamber (1) to form a 7-shape structure; the upper end surface of the supporting seat (2) is movably provided with a mounting seat (4), and the mounting seat (4) can conduct a circumferential motion at 360° relative to the supporting seat (2); the transverse arm (3) is fixedly installed on the upper end surface of the mounting seat (4) and forms an integral whole with the mounting seat (4); each of two ends of the transverse arm (3) is provided with a downwards vertical handle (31), and a controller (32) is provided on the transverse arm (3); the first door-shaped supporting frame comprises a transverse rolling arm (5) and two supporting arms (6), and the second door-shaped supporting frame comprises two carbon tubes (8) and two swinging arms (7); the back surface of the mainboard chamber (1) is provided with a power supply controller (11), and the front surface thereof is provided with a motor; the transverse rolling arm (5) of the first door-shaped supporting frame is movably installed on the mainboard chamber (1) through the motor; and a sensor (10) is provided on the mounting seat (4), the transverse arm (3), the mainboard chamber (1) and the carbon tubes (8) respectively.\nC: A detection probe (1000), a transmission device (300), and a detection instrument. The detection probe (1000) comprises a housing (100), a detection mechanism (200), a drive mechanism (400), and a rope transmission mechanism (330). An accommodation space (110) is defined in the housing (100). The detection mechanism (200) is located at one end of the housing (100), and is used to perform a detection function. The drive mechanism (400) is located in the accommodation space (110), and is used to output power. The rope transmission mechanism (330) is located in the accommodation space (110) and comprises a rope (332) and a commutation component (333). The rope (332) is separately connected to the drive mechanism (400) and the detection mechanism (200), and is used to receive the power outputted by the drive mechanism (400), and transmit same to the detection mechanism (200), so as to drive the detection mechanism (200) to move. The commutation component (333) comprises two commutation wheel groups disposed along the extension path of the rope (332); the rope (332) sequentially winds about the two commutation wheel groups to change the transmission direction under the action of the two commutation wheel groups. The detection probe (1000), the transmission device (300), and the detection instrument can meet use requirements.\nD: A self-balancing control method and system for an underwater unmanned aerial vehicle, the self-balancing control method for an underwater unmanned aerial vehicle comprising: step a (100): disposing at least one reversible propeller on an underwater unmanned aerial vehicle; step b (200): converting an acting force borne by the underwater unmanned aerial vehicle into a resultant force of at least one degree of freedom of motion by means of a degree-of-freedom of motion control model, wherein the degree of freedom of motion corresponds to a measurable motion control parameter; step c (300): designing a corresponding sub-PID controller according to each degree of freedom of motion; and step d (400): calculating a thrust required for the at least one reversible propeller by means of the thrust distribution matrix. The self-balancing control method and system for an underwater unmanned aerial vehicle can stably and rapidly implement the closed-loop motion control of the underwater unmanned aerial vehicle on five degrees of freedom; the control system is high in coupling degree, the control algorithm is easy to implement, and the control strategies are simple and efficient.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn aircraft, comprising a main frame (100), a swing motor (200) and at least one pair of wings (300). The swing motor (200) outputs reciprocating swing motion, and has a swing arm (204) that is mounted on the main frame (100) and is capable of rotating around a fulcrum. The wings (300) are installed on the swing arm (204) of the swing motor (200) and may form a reciprocating fanning motion under the drive of the swing arm (204). The described aircraft employs a swing motor whose control circuit generates alternating pulses having adjustable pulse widths, so that the moving direction of permanent magnets changes alternately, thus forming a reciprocating swing. The swing motor does not experience stalling, automatically reduces swing amplitude when resistance is high or swing frequency is high, responds quickly to input signals, may achieve swing of various frequency modes, and may more realistically immitate the swinging pattern of wings of flying creatures such as birds and insects, thereby enabling the aircraft to form more enriched flight modes.\nA: A diaphragm pump and an electric sprayer, and the diaphragm pump comprises a U-shaped yoke (100), four permanent magnets and an oscillating arm (400), wherein end faces (111, 121) of two legs (110, 120) of the U-shaped yoke can generate alternating magnetic polarities under the control of a control circuit (300). The four permanent magnets are fixedly mounted on an inner arm (420) of the oscillating arm by means of a second yoke (500). The four permanent magnets are a first permanent magnet (610), a second permanent magnet (620), a third permanent magnet (630) and a fourth permanent magnet (640), respectively, which are sequentially distributed in a same circumference centered at a pivot point. The first permanent magnet and the fourth permanent magnet are of the same polarity at radial end faces (611, 641); the second permanent magnet and the third permanent magnet are of the same polarity at radial end faces (621, 631), which is opposite to the polarity at the radial end face of the first permanent magnet. When the coil (200) is energized, the four permanent magnets generate torque in the same direction of rotation, and under the action of the alternating magnetic polarities at the end faces of the two legs of the U-shaped yoke, the four permanent magnets perform reciprocating oscillation; as a result, an outer arm (430) of the oscillating arm (400) brings a diaphragm push-and-pull rod (920) to squeeze the diaphragm, thus changing the size of a fluid chamber (910), thereby achieving intake and discharge of liquid.\nB: A massaging motion apparatus and a head gripping massage device, the massage motion apparatus comprising a mounting base (100), a pair of swing arm assemblies (200) arranged opposite to one another, and a drive assembly (300), each swing arm assembly (200) being mounted on the mounting base (100), each swing arm assembly (200) comprising a rotating wheel (210) and a swing arm mechanism (220), each swing arm mechanism (220) comprising a swing arm (221) rotatably connected to the mounting base (100) by means of a first rotating shaft (510) and a connecting member (222) rotatably connected to the swing arm (221) by means of a second rotating shaft (520), a strip-shaped hole (2211) being disposed in the swing arm (221), the second rotating shaft (520) being arranged in the strip-shaped hole (2211), a guide groove (2101) being disposed in one wheel surface of the rotating wheel (210), the connecting member (222) comprising a connecting arm (2221) rotatably connected to the second rotating shaft (520) and a driven rod (2222) arranged in the guide groove (2101), and the connecting arm (2221) being connected to the rod side of the driven rod (2222). The two swing arms (221) in the pair of swing arm assemblies (200) of the present massaging motion apparatus simultaneously swing towards each other or swing away from each other, thereby implementing an opening and closing gripping motion that simulates human hands.\nC: An aerial vehicle, relating to the technical field of flight. The aerial vehicle is characterized in: comprising wings (20) that provide flying power by means of up and down oscillation or vibration, and one-way air transmitting structures that only allow airflow to flow from above the wings (20) to below the wings (20) being distributed on the wings (20). Thus, in the process of the wings (20) repeatedly oscillating or vibrating, air flow is only able to flow from one side of the wings (20) to the other side of the wings (20), thereby acquiring lift for the aerial vehicle to fly.\nD: An electric cleaning brush for cleansing a surface of a biological body, comprising: an oscillating motor and a brush driven by the oscillating motor. The oscillating motor comprises a U-shaped yoke (100), four permanent magnets and an oscillating arm (400). The U-shaped yoke (100) has coils (200) respectively wound around two legs thereof, allowing end faces of the two legs to generate alternating magnetic polarities under the control of a control circuit (300). The four permanent magnets are a first permanent magnet (610), a second permanent magnet (620), a third permanent magnet (630) and a fourth permanent magnet (640), respectively, which are sequentially distributed in a same circumference centered at a pivot point. The first permanent magnet (610) and the fourth permanent magnet (640) are of the same polarity at radial end faces; the second permanent magnet (620) and the third permanent magnet (630) are of the same polarity at radial end faces; the second permanent magnet (620) and the first permanent magnet (610) are of opposite polarities at radial end faces. The control circuit (300) generates alternating width-adjustable pulses, such that the permanent magnets form reciprocating oscillation; as a result, the oscillating arm (400) brings the brush to perform high-speed small-amplitude reciprocating oscillation, thus cleansing a surface of a biological body.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a household high-efficiency ozone nano-bubble water generation system, comprising a water production and storage tank (3), a nano-bubble generator (4) and an air source type ozone generator (5), wherein the nano-bubble generator (4) comprises a circulating pipeline; an external circulating water pump (4-1) and a generator pump head (4-2) are connected to the circulating pipeline in series; and a microporous air stone (4-3) with a pore diameter of 10-100 μm is arranged in the generator pump head (4-2).\nA: Disclosed is a crop cleaning machine capable of carrying out pesticide removal and sterilization, while improving the cleaning performance thereof. The crop cleaning machine (1) comprises: a cylindrical cleaning tub (10) for accommodating crops; a pump (40) for sucking in and discharging water stored in the cleaning tub (10); an ozone generator (50) for generating ozone-containing air; and a bubbly water generator (60) for taking in water discharged from the pump (40) and the ozone-containing air generated by the ozone generator (50) and for spraying bubbly water, obtained by mixing small bubbles containing ozone in water, into the cleaning tub (10) from a spray port (15) of the bubbly water generator (60). The spray port (15) is provided at a position, offset from a central axis (P) of the cleaning tub (10), on the bottom of the cleaning tub (10), and sprays the bubbly water in an oblique upward direction, and the oblique upward direction intersects with a radial direction starting from the central axis (P) when the cleaning tub (10) is viewed from above.\nB: A device and method for extracting components in a solid by using nanobubbles. The device comprises a reaction vessel (2) for holding a solid to be extracted, a nanobubble generation means (3) for generating a nanobubble-containing liquid, and an energy generator; the nanobubble-containing liquid is mixed with the solid to be extracted; the energy generator is configured to emit energy into the reaction vessel (2) to burst nanobubbles, so that the effect of extracting the solid in the liquid is enhanced.\nC: A microbubble generator and a washing device. The microbubble generator (100) comprises: a dissolved air tank (1), a partition (3), and a cavitation piece (4). The dissolved air tank (1) defines a dissolved air cavity (10) thereinside and is provided with an inlet (14) and an outlet (15), and the inlet (14) is located above the outlet (15). The partition (3) is disposed in the dissolved air tank (1), the baffle (10) partitions at least part of the dissolved air cavity (10) into a bubble dissolving area communicated with the inlet (14) and a water flow discharge area communicated with the outlet (15), and water flow in the bubble dissolving area passes by the partition (3) and enters the water flow discharge area. The cavitation piece (4) is connected to the outlet (15) or disposed at the outlet (15).\nD: An outdoor fresh air purifying system, comprising a fresh air pipeline (1) and a return air pipeline (2). The fresh air pipeline (1) and the return air pipeline (2) are both connected to a purification dust collector (3) before being connected to an indoor air inlet, an air inlet is provided on the lower part of the purification dust collector (3), an air outlet is provided on the top part of the purification dust collector (3), the air outlet is connected to the indoor air inlet, the bottom part of the purification dust collector (3) is provided with a nano foam machine (4), the nano foam machine (4) is in communication with a spraying device (7) in the purification dust collector (3) through a circulating pipeline (6), the circulating pipeline (6) is provided with a circulating water pump (5), the circulating water pump (5) presses high-density nano foam generated by the nano foam machine (4) in the spraying device (7), and the air outlet is provided with a drying device (8).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA preparation device (100) and preparation method for a supersaturated hydrogen solution. The preparation device (100) comprises a housing (4) and a hollow fiber membrane group (18). A liquid inlet (42) communicated with a liquid source, a liquid outlet (43), and a gas inlet (44) used for communicating with a hydrogen source are provided on the housing (4); the hollow fiber membrane group (18) comprises a plurality of hollow fiber membrane tubes (19) contained in the housing (4); an inlet end (20) of the hollow fiber membrane group (18) is communicated with the liquid inlet (42), so that liquid can flow in the hollow fiber membrane tubes (19), and hydrogen from the hydrogen source can flow from membrane holes (191) of the hollow fiber membrane tubes (19) into the hollow fiber membrane tubes (19) and can be mixed with the liquid; and an outlet end (23) of the hollow fiber membrane group (18) is communicated with the liquid outlet (43). Hydrogen serving as bubbles in a nano-scale diameter is fully mixed with liquid, the hydrogen concentration and the preparation time of an obtained solution are both superior to the prior art, the preparation efficiency is high, the cost is low, and the application range is wide.\nA: A breathable membrane component (7), a membrane biofilm reactor, and a membrane biofilm reactor assembly equipped with same. The membrane biofilm reactor has multiple membrane components (7) fixed on a membrane frame (10) and placed in a membrane housing (2). As core components, the breathable membrane components (7) have multiple woven membrane fabrics (13) spirally wrapped on a central core pipe (15) to constitute a radial woven layer over the pipe, where the membrane fabrics (13) are formed by weaving a large amount of hollow fiber membrane filaments (19) and barrier filaments (20). Sewage is introduced into the central core pipe (15), a gas is introduced into the cavities of a hollow fiber membrane for the growth of microorganisms on the outer surface of the hollow fiber membrane, and the sewage outflows from a perforated area of the central core pipe to come into contact with the microorganisms on the outer surface of the hollow fiber membrane, thus forming a radial flow.\nB: Provided are a reinforced polyacrylonitrile hollow fiber membrane and preparation method therefor. The preparation method comprises the following steps: (1) weaving a polyacrylonitrile fiber hollow woven pipe by using a two-dimensional weaving technique, and using the hollow woven pipe as a reinforcement body for the hollow fiber membrane; (2) preparing a polyacrylonitrile membrane-casting solution, the mass fraction compositions thereof being: polyacrylonitrile resin 3-25%; solvent 50-95%; and additives 2-30%, the sum of each component being 100%; (3) soaking the hollow woven pipe with a poor polar organic liquid for 1-60 s, the poor polar organic liquid is ethanol, glycerol, isopropanol or PEG-600; and (4) coextruding the hollow woven pipe and membrane-casting solution through an annular spinneret and solidifying sufficiently in a coagulating bath to obtain the reinforced polyacrylonitrile hollow fiber membrane.\nC: A preparation device (100; 200) and a preparation method for a supersaturated gas solution. The preparation device (100; 200) comprises a gas-liquid mixing device (1024; 202) and a water tank (104; 204), wherein the gas-liquid mixing device (1024; 202) is provided with a water inlet (102a; 202a), a water outlet (103b; 202c) and a gas inlet (105b; 202b) which is used for being in communication with a gas source (101; 201), and the water tank is provided with a water suction port (1011; 2011) and a water inlet (1012; 2012), wherein the water inlet (102a; 202a) of the gas-liquid mixing device (1024; 202) is connected with the water suction port (1011; 2011) of the water tank (104; 204) via a water suction flow branch line (1022; 2020), the water outlet (103b; 202c) of the gas-liquid mixing device (1024; 202) is connected with the water inlet (1012; 2012) of the water tank (104; 204) via a discharge flow branch line (1023; 2021), and a pressure relief device (106; 206) is arranged on the discharge flow branch line (1023; 2021), such that a gas-liquid mixing flow from the gas-liquid mixing device (1024; 202) flows through the pressure relief device (106; 206) and then is discharged into the water tank (104; 204).\nD: A hollow fibrous membrane element comprises a pressure-bearing housing (7), and hollow fibrous membranes (6), and a water distributing pipe (5). A head sealing cover (3) is disposed at one end of the pressure-bearing housing (7). The head sealing cover (3) is used for fixing the water distributing pipe (5) and sealing the pressure-bearing housing (7). A housing liquid port (8) is disposed in the pressure-bearing housing (7). A cover head liquid port (2) is disposed in the head sealing cover (3). One end of each hollow fibrous membrane (6) is fixed with the pressure-bearing housing (7). The interior of the hollow fibrous membrane (6) communicates with the cover head liquid port (2). The other end of each hollow fibrous membrane (6) is sealed. Each hollow fibrous membrane (6) is radially distributed in the pressure-bearing housing (7).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are a diamond composite phase material and a preparation method therefor. Onion carbon is used as a raw material, and a novel diamond composite phase bulk material containing multiple types of diamond phases of 3C, 2H, 4H, 6H, 8H, 10H, 9R, 15R and 21R is prepared by means of a high-temperature and high-pressure synthesis method. Two or more types of diamond phases of 2H, 3C, 4H, 6H, 8H, 9R, 10H, 15R and 21R can be found in the crystal grains of the bulk material. Among them, the 3C type diamond has an ultra-fine nano-twin crystal structure with a twin crytal width of 1-15nm. The diamond composite phase bulk material has an internal grain size of 2-80 nm, a Vickers hardness of 150-260 GPa, and a fracture toughness of 12-30 MPa m 1/2 . The diamond composite phase bulk material has broad applications in the fields of precision and ultra-precision machining, wire drawing dies, abrasives and special optical components.\nA: Provided are a novel ceramic-based diamond composite sheet and a preparation method therefor, which belong to the technical field of composite materials. The ceramic-based diamond composite sheet comprises a ceramic matrix that is provided with a diamond layer; the diamond layer is composed of diamonds, and the form of the diamonds is powder or a thin film; the distribution means of the diamond layer in the ceramic matrix is single-layer distribution or multi-layer distribution, and the distribution location of the diamond layer in the ceramic matrix is located in a middle region or a surface region. The heat dissipation and heat conduction controllability of the ceramic material are greatly improved, and at the same time, the bonding strength between the diamonds and the ceramic matrix is improved, and a ceramic-based diamond composite sheet that has an excellent heat dissipation performance and a controllable heat conduction direction is obtained.\nB: Disclosed are a metal-based/diamond laser composite coating and preparation method thereof, the method comprising: first selecting high-hardness metal powder and diamond powder of a proper grain size and shape; then uniformly mixing the high-hardness metal powder and diamond powder via a ball-milling method; and finally preparing a composite coating on a substrate by synchronously combining laser texturing technology, laser thermal treatment technology and cold spraying technology. The thickness of the composite coating is greater than 1 mm, and the volume content of diamond in the coating is greater than 45%. The present invention prepares the composite coating by utilizing high-hardness metal powder as a diamond binding phase, improves the bonding strength of the composite coating and the substrate via pulse laser texturing treatment, and finally prepares a stable, quality and high-hardness metal-based/diamond composite high abrasion resistant coating, and realizes integration, automation and high efficiency of substrate surface treatment and coating deposition preparation.\nC: Provided is a rough-surface diamond synthesis method, particularly a method of manufacturing a conductive rough-surface black polycrystalline diamond, the method comprising the following steps: 1) crushing a mixed graphite with a catalyst powder of a standard HPHT process into a cylindrical shape such that the porosity thereof is less than 35%; 2) synthesizing a diamond by using a standard HPHT process; 3) when the growth of the diamond is completed and a relative pressure decreases near to 0, while maintaining a good contact between an anvil and a synthesized block, controlling the temperature to be from 800°C to 1200°C for 60-180 min, or, when the growth of the diamond is completed, taking out the HPHT-synthesized cylinder and placing the same in a vacuum furnace to heat at a temperature of from 800°C to 1200°C for 60-180 min; 4) taking out the synthesized cylinder, removing residual graphite and catalyst therefrom, rinsing with water, carrying out staged drying or sieving after drying to classify diamond grains according to different granularity meshes, thus obtaining rough-surface diamonds with different granularities.\nD: A method for producing a mushroom-shaped diamond tooth head cutting pick, comprising: compounding diamond micro-powder and a carbide substrate into a mushroom-shaped diamond composite tooth head under high temperature and high pressure conditions; melting a low melting point high strength silver-based solder on a bottom plane of diamond composite teeth, the solder being a droplet shape after solidifying due to surface tension; and meanwhile, placing same within a cutting pick matrix embedding hole preheated to a certain temperature so as to be welded into a whole. During welding, the top end of the droplet-shaped solder first contacts the bottom of the hole and melts, and gas at the bottom of the hole may be fully discharged, guaranteeing that a solder layer is free of slag inclusion, gas inclusion and free of a falsely welded surface, which solves the problem in which gas at the bottom of a hole cannot be fully discharged in traditional blind hole welding forming false welding, and avoids an adverse effect caused by high-temperature welding of diamond composite teeth, effectively enhancing the welding strength between the diamond composite teeth and a cutting pick body, and the diamond cutting pick produced has higher impact resistance and wear resistance.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA whole-process peanut production line and method, comprising a peanut cleaning system, a shell breaking system, a red skin removal system, a peanut kernel grading system, a superfine grinding system and a grading and packaging system. The first process is peanut cleaning and impurity removal. Peanut shell breaking is arranged behind peanut cleaning and impurity removal, peanut kernel red skin removal and peanut shell superfine grinding are respectively arranged behind the peanut shell breaking, peanut kernel grading is arranged behind the peanut kernel red skin removal, and peanut shell superfine powder grading and packaging is arranged behind the peanut shell superfine grinding.\nA: An organic fertilizer for winter wheat sowing, comprising the following components in parts by mass: 90-100 parts of pine needles, 15-25 parts of chicken fat, 1-3 parts of crushed peanut stalk, 18-22 parts of an oil residue, 30-50 parts of crushed peanut shell, 40-50 parts of cereal shell, 30-50 parts of plant ash, 8-16 parts of chicken intestines, 6-8 parts of kelp powder, 20-30 parts of soybean curb residue, 60-70 parts of lard, 10-13 parts of a biological bacterium, and 150-170 parts of water.\nB: A method for producing peanut oil rich in resveratrol, comprising the following steps: step I, crushing washed and dried peanut roots and mixing same with peanut kernels to obtain a mixture, wherein the mass ratio of the peanut roots to the mixture is 3-11:100; and step II, performing pressing for 15-35 min at a pressure of 25-40 MPa and a temperature of 50-70°C to obtain an oil which is peanut oil rich in resveratrol. The method for producing peanut oil rich in resveratrol does not need to add a single resveratrol product, and is suitable for industrial production.\nC: A high-efficiency automated production system for walnut shell-breaking, kernel-taking and shell-kernel separation, comprising a shell breaking device (Ⅱ) which provides a squeezing member for squeezing the walnut to break shells; a kernel oscillation grading device (Ⅶ), which receives and oscillatorily grades the mixture of shells and kernels after breaking the shells, and respectively conveys to each negative-pressure vibration sorting device (Ⅵ). The negative-pressure vibration sorting device (Ⅵ) is connected to a negative-pressure separating device (Ⅳ) which absorbs and stores the shells by the negative-pressure suction force, and the kernels are classified by the negative-pressure vibration sorting device (Ⅵ) to store.\nD: A peanut stem and leaf extract, a preparation method therefor and an application thereof. The peanut stem and leaf extract at least comprises naringenin-4,7'-dimethyl ether, 2'-O-methylisoliquiritigenin, linalool and ferulic acid. The described peanut stem and leaf extract is prepared by using the following method: pulverizing dried peanut stems and leaves to a fine powder level, and then performing extraction by using a water extraction process. The described preparation method can efficiently extract active substances from peanut stems and leaves, and the peanut stem and leaf extract can effectively improve sleep and treat insomnia.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA coal discharge wheel for use in an air dry sand coal sorting system, comprising a base plate (1), a drive apparatus, and a conveying apparatus used for conveying coal blocks. Side plates (2) are fixedly connected around the periphery of the base plate, the combination of the base plate and the side plates forming a sorting chamber (3), a rotating shaft (4) being rotatably connected between two opposite side walls on the base plate, the rotating shaft penetrating out of the side plates and having a transmission connection to the drive apparatus, a plurality of coal discharge sieves (5) being distributed uniformly on the rotating shaft along the circumferential direction of the rotating shaft, the coal discharge sieves comprising a plurality of coal discharge rods (6), the rotation of the rotating shaft driving the coal discharge rods to rotate along the circumferential direction of the rotating shaft, the rotation range of the coal discharge rods being less than the width of the rotating shaft between the two side plates on both sides of the rotating shaft, and the conveying apparatus being in communication with the side plates on both sides of the rotating shaft. The present coal discharge wheel has the advantages of a low failure rate, high coal block sorting efficiency, and low dielectric loss, thereby saving costs and increasing working efficiency.\nA: An automatic feeding and conveying apparatus for a laser pipe-cutting machine, comprising a machine frame (1), a plurality of conveying mechanisms (2) connected in parallel being mounted on the machine frame (1), a cylinder (3) mounted on the machine rack (1) being disposed between the conveying mechanisms (2), a blocking rod (4) being disposed on the upper end of the piston rod of the cylinder (3), the conveying mechanisms (2) comprising a chain group A and a chain group B arranged in parallel, the chain group A being connected together by means of a transmission shaft A (5) and the chain group B being connected together by means of a transmission shaft B (6), the transmission shaft A (5) being positioned in front of the transmission shaft B (6), a servo motor A (7) for driving the rotation of the transmission shaft A (5) and a servo motor B (8) for driving the rotation of the transmission shaft B (6) being disposed in the machine frame (1), a conveyor belt (9) being disposed between the conveying mechanisms (2), and the blocking rod (4) being positioned between the front ends of the chain group B. The apparatus has a simple structure, stable operation, and high working efficiency, reducing staff labour intensity; using said structure can effectively ensure that one pipe enters a material carrying apparatus, preventing pipes from overlapping.\nB: A delivery device, comprising: a base (1), a roller component (2), a transmission shaft (3), and a driving unit (4). The roller component (2) comprises multiple delivery wheels (21) that are coaxially provided, multiple lead screws (22), and multiple lead screw motors (23) connected to the multiple lead screws (22) in a one-to-one correspondence manner. Each delivery wheel (21) is provided with a threaded hole (211), and is in a connection fit with a corresponding lead screw (22) by means of the threaded hole (211) thereon, so that the corresponding delivery wheel (21) is controlled to move along an axial direction. The transmission shaft (3) is rotatably connected to the base (1). The transmission shaft (3) is fixedly connected to the roller component (2). The driving unit (4) is configured to drive rotation of the transmission shaft (3). The transmission shaft (3) drives the lead screw motors (23) to simultaneously rotate, thereby driving the roller component (2) to rotate about the axis of the transmission shaft (3). Also disclosed is a delivery method of the delivery device. By controlling delivery wheels (21) to move along an axial direction, defective products due to wheel imprints left during product transport can be avoided.\nC: Disclosed is a portable barbecue grill, comprising a polygonal frame, side plates, and a bottom plate (3), wherein upper edges of the side plates are rotatably connected to corresponding sides of the polygonal frame; the bottom plate (3) is provided with four bayonets (31), and the four bayonets (31) form two bayonet pairs, one of which is slidably connected to side edges of two sides of any one of the side plates, and the other of which is slidably connected to side edges of two sides of a target side plate; and lower edges of other side plates, other than the attached side plates, are located on an upper side of the bottom plate (3). By means of improving the structure of a conventional barbecue grill and the connection relationship between parts of a conventional barbecue grill, a grill body is divided into the polygonal frame, the side plates and the bottom plate (3), the side plates are rotatably connected to the polygonal frame, and the attached side plates are slidably connected to the bottom plate (3), thereby achieving rapid folding or unfolding without parts being lost and convenient carrying.\nD: A sieving and gangue discharging apparatus on a gangue discharging system for a coal cleaning system employing air and dry sand, comprising a separation chamber (10), a bottom sieving layer (20), a side sieving layer (30) and gangue discharging claws (40). The bottom sieving layer is fixedly disposed in the separation chamber. One end of the side sieving layer is fixed to the inner wall of the separation chamber, and the other end thereof is fixedly connected to the bottom sieving layer. The gangue discharging claws are disposed in falling and sieving seams of the bottom sieving layer, and the end portions thereof are exposed out of the upper end face of the bottom sieving layer. The bottom sieving layer is formed by a plurality of first sieving bars (21) which are distributed in the separation chamber uniformly. Falling and sieving seams (22) are formed among the adjacent first sieving bars. The side sieving layer is formed by a plurality of second sieving bars (31). The second sieving bars have a certain slope relative to the bottom sieving layer. Falling and sieving seams are formed among the adjacent second sieving bars, and the width thereof is the same as that of the falling and sieving seams on the bottom sieving layer. Moving seats (41) are provided on the bottom portions of the gangue discharging claws for controlling the gangue discharging claws to move on the bottom sieving layer. A gangue discharging opening is formed at one side of the separation chamber and is in communication with the bottom sieving layer. The apparatus enables convenient sieving, the equipment is not damaged thereby easily, and the sieving efficiency is improved.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fan, comprising a housing and a water tank provided with a through-hole (21) and used for storing a liquid, further comprising a closure cap (3) used for closing said through-hole (21). The fan is provided with the closure cap (3) used for closing the through-hole (21) on the tank opening, thereby preventing the liquid in the water tank from leaking out of the through-hole.\nA: A decorative lamp, comprising a housing (1), a circuit board (2) fixed inside the housing and provided with a lamp (21), a bottle (3) fixed inside the top of the housing and internally provided with liquid, a stopper (4) used for closing the mouth of the bottle, and a lid (5) encasing the stopper. The decorative lamp comprises a housing, a circuit board fixed inside the housing and provided with a lamp, a bottle fixed inside the top of the housing and internally provided with liquid, a stopper used for closing the mouth of the bottle, and a lid encasing the stopper; the cap is sleeved on the stopper, preventing damage to the stopper and ensuring a tight fit between the mouth of the bottle and the stopper, thus preventing the stopper from becoming loose and leaking liquid.\nB: A decorative lamp, comprising a housing (1), a bottle (5) fixed on the housing (1), a base (3) provided with an opening at its bottom and fixed at the bottom of the housing (1), a circuit board (2) fixed inside the housing (1), and a closure cap (4) closing the opening. The closure cap closes the opening of the base, thus preventing dust or debris from entering into the housing from the opening of the base and also preventing the components inside the housing from damage due to dust or debris.\nC: An electronic fishbowl comprising a bowl body (1), model fishes (7) placed within the bowl body (1), a circuit board (5), and an actuating motor (2) connected to the circuit board (5) via a lead. The bowl body (1) comprises a water tank (12) provided with an opening and a lid (11) used for closing the opening. A propeller is arranged on an output shaft of the actuating motor (2). The electronic fishbowl also comprises a motor housing (3) sleeved on the actuating motor (2). The motor housing (3) is provided with a water passage at where the propeller (21) is located. The motor housing (3) is sleeved on the actuating motor (2), the water passage is provided on the motor housing (3), water enters the motor housing (3) from a water inlet (311) of the water passage, and the propeller (21) on the output shaft of the actuating motor (2) rotates continuously to output via a water outlet the water that entered the motor housing (3), thus preventing the water from entering the actuating motor (2) and affecting normal operation of the actuation motor.\nD: The present invention discloses a fan, comprising a housing, a water spray device mounted inside said housing and used for spraying mist; the nozzle of said water spray device is provided with two opposing projections, and said housing is provided with retaining slots for placement of said projections. In the present invention, the two retaining slots are arranged on the housing and are used for retaining and fixing the projections; thus the sides of the projections are placed in the retaining slot, and when the projections are pressed, the projections move along the retaining slots so as not to cause pressure on other parts of the water spray device, thus protecting the water spray device and making it less prone to damage.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multi-process high-efficiency intelligent coating assembly line, which solves the problems in the existing technology in which a coating assembly line has a single process route, device repeat purchase rate is high and the assembly line occupies a relatively large area and so on. By configuring the structure of a connection between a conveying track (51) and a driving system (6), process routes (L1, L2 and L3) may be diversified, a variety of different coating processes may be automatically completed on one assembly line, a device is simplified and a reasonable area is occupied. By configuring a control system and a code reader (71) thereof, workpiece information carried by a small carrying car (54) may be automatically identified, corresponding processes for different workpieces may be completed, and the degree of intelligence is higher.\nA: Disclosed is a flexible and automatic production line for punching, welding, or bonding an automobile exterior decorative member. The production line comprises a two-layer conveying platform for conveying a workpiece mounting seat, and a material loading device and a material discharging device provided at two ends of the two-layer conveying platform. A robot punching system and/or a robot welding/bonding system is further provided at a side surface of the two-layer conveying platform. The production line further comprises a control system. Each of the two-layer conveying platform, the material loading device, the material discharging device, the robot punching system, and the robot welding/bonding system are connected to the control system, and receive instructions so as to achieve precise machining. In the present invention, an entire production process is divided so as to be completed at multiple stations, and conveying between stations is performed by means of an assembly line. An overall production process on the automatic production line comprises: positioning a die having a workpiece, a robot performing punching, conveying the die, the robot performing welding/bonding, and conveying the die or discharging a member. An action performed at each station is automatically controlled by the robot, and a three-dimensional integrated structure of the production line for punching and welding the automobile exterior decorative member is established.\nB: A thermal spraying apparatus and thermal spraying system, and a thermal spraying technique thereof. The thermal spraying apparatus comprises: an electric arc spraying device (06), a rotating work platform (01), a spraying fixture (02), a wire rack (07), and a main controller (08). The electric arc spraying device (06) is provided at an external periphery of the rotating work platform (01). The spraying fixture (02) is circumferentially disposed on the rotating work platform (01). Every spraying fixture (02) rotates by means of a driving force provided by a motor. The wire rack (07) is disposed at the periphery of the rotating work platform (01). Each of the wire rack (07) corresponds to an electric arc spraying device (06). The main controller (08) is controllably connected to a rotating work platform (01). The thermal spraying system further comprises a sand blasting and surface roughening equipment. The thermal spraying technique performs electric arc spraying on a silicon aluminum wire. By rotating the rotating work platform and moving the spraying fixture to different work positions, the thermal spraying apparatus can perform, by means of the electric arc spraying device, a thermal spraying operation in a sequence to realize a production line for a spraying process. The invention improves spraying efficiency and spraying quality when compared to a manual hand-held electric arc sprayer.\nC: System integration for car bumper injection molding processing; at a gripper placement rack (5), automatically selecting a retrieving gripper (3) which is used for a corresponding product by means of a retrieving robot (2); by means of the retrieving robot (2) and the retrieving gripper (3) joining, retrieving a product from an injection molding machine (13); automatically cutting a material head on the product by means of a material head cutting device (4); automatically completing subsequent sintering processing of the product by means of a flame processing device (8); by means of a product turn over mechanism (6), the product may be received from the retrieving gripper (3) and then turned over, the product automatically being placed on a weighing mechanism (7) for automatic weighing, wherein whether or not the product is up to standard is tested by means of a method of weighing; the weighed product automatically entering a discharge production line (10), the product being sent out in an orderly manner by means of the discharge production line (10); a guardrail (12) may play the role of a safeguard. The entire equipment may automatically complete the procedures of material retrieving, material head cutting, sintering processing, product testing, product discharge and the like, manpower being greatly reduced, while processing efficiency is increased, and production costs are reduced.\nD: A turnover type automatic assembly line, comprising: a turnover type conveying line (1); a feeding and suction mechanism (3) mounted on the turnover type conveying line (1); and a cartridge type part feeding mechanism (4) disposed at a side of the feeding and suction mechanism (3). The turnover type conveying line (1) comprises: a positioning line (11) and an assembly line (12) arranged side by side and in parallel; multiple positioning fixtures (14), the positioning fixtures (14) performing turnover type conveying between the positioning line (11) and the assembly line (12); and a lifting unlocking mechanism (13), the lifting unlocking mechanism (13) being disposed on the positioning line (11), the positioning line (11) and the assembly line (12) performing reverse conveying, and a fixture feeding station (114), a fixture positioning waiting station (115), and a fixture positioning station (116) being provided in sequence along the conveying direction on the positioning line (11), and the lifting unlocking mechanism (13) being located at the fixture positioning station (116) and located under the positioning line (11). The turnover type assembly line has high automation level and integration level, thereby greatly improving assembly efficiency, and has high position precision, thereby satisfying design assembly requirements.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed a prepreg sizing roll shaft spraying complete machine. The complete machine comprises a main machine base (b1) and a coating mechanism arranged on the main machine base (b1); the complete machine further comprises a feeding structure for performing feeding and an iron powder supply device for absorbing iron powder; a supporting rod (b2) for the installation of the feeding structure is arranged on the main machine base (b1); and the complete machine also comprises an iron powder recycling box (b3) arranged below the iron powder supply device. The prepreg sizing roll shaft spraying complete machine uses automatic control, a very efficient novel roller shaft manufacturing manner is achieved, the finished product yield is high, and the effect is good.\nA: An edge sewing machine, comprising a machine base (1) and a machine head (2) arranged on the machine base (1). A machine needle assembly (3) and a machine needle driving mechanism for driving the machine needle assembly (3) to act are arranged on the machine head (2); a swing arm (4) and a swing arm driving mechanism for driving the swing arm (4) to swing are arranged on the machine base (1); a thread hooking device (5) obliquely extending upwards to a position right below the machine needle assembly (3) is arranged on the swing arm (4); a sensing probe (6) configured to sense the outer contours of shoe soles of different sizes so as to control the swing arm (4) to swing along with a topline is further comprised; a limiting controller (7) for limiting the swing angle of the swing arm (4) is arranged on the machine base (1). The edge sewing machine is simple in structure, easy in operation, capable of automatic arm swinging, and high in production efficiency.\nB: A semi-automatic production device for traceless hooks, comprising a rack. A conveyor assembly used for conveying materials, a tray set (1000) used for bearing traceless hook fixing pieces (120) and hooks (130), a gluing system used for smearing glue on the traceless hook fixing pieces (120), a sticky film feeding mechanism used for feeding sticky films (110) to the traceless hook fixing pieces (120) smeared with the glue, and a glue pressing and curing device used for curing and bonding the traceless hook fixing pieces (120) and the sticky films (110) with the glue are arranged on the rack. According to the device, a worker only needs to place the traceless hook fixing pieces (120) and the hooks (130) on trays, the traceless hooks can be manufactured by means of a control switch, the labor cost is reduced, and moreover, due to the fact that the traceless hooks are produced in a semi-automatic mode, the finished product yield is high, the condition is good, workers do not need to make direct contact with UV glue and ultraviolet light, the safety of the workers is guaranteed, a plurality of trays can be arranged on a tray set, and the production efficiency is greatly improved.\nC: Disclosed is a direct-current, double-support and ultra-fine ring roller grinder, comprising a grinding host, wherein a host shell (1) of the grinding host is arranged on a host base (3); a grinding roller (9) and grinding rings (12, 13) mated with each other are arranged in the host shell (1); the grinding roller is arranged on a grinding roller support (10, 11), and the grinding roller support is arranged on a main shaft (2); a lower end of the main shaft (2) is mounted in a double-support manner through upper and lower bearing positions (4,7) on an upper host cover (6) and the host base (3); a negative-pressure gas port (5) is formed on the host base (3); the grinding rings are directly mounted and connected to the host shell in a non-spaced manner; and the gas port communicates with a graded conveying pipe outside the grinding host. The grinding host of the ring roller grinder uses a structure with feeding from the top and suction from the bottom, which is not restricted by the grading amount of the grading device, and prevents the discharging materials from leaking outside; thus, the grinding efficiency is improved, mechanical collision and abrasion between the grinding roller and the grinding ring are reduced, and the grinding host has a low noise level.\nD: An automatic spraying device for insulated cups, comprising a mounting frame (1), a drive rod (2) is provided on the mounting frame (1); a torque motor (3), a lower rotary disc (4) and an upper rotary disc (5) are mounted on the drive rod (2); the upper rotary disc (5) is provided with a plurality of moving devices (6), and a sealing cover (7) and a negative pressure device (8) is connected on each moving device (6); the lower rotary disc (4) is provided with paint bases (9), and a storage cavity (10), a support rod (11) and a flow cavity (12) are provided within each paint base (9); a plurality of outflow holes (13) are provided on the flow cavities (12); a fixed ring plate (14) is provided on the paint bases (9), and a plurality of discharge holes (15) are provided between each fixed ring plate (14) and support rod (11); and one side of the lower rotary disc (4) is provided with a feeding device (16) and a discharging device (17). The device has a simple structure, a good coating effect, and can improve spraying working efficiency.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA transducer element (100), comprising: multiple array elements (10). At least one array element (10) comprises: a substrate (1); and a first electrode layer (2), a diaphragm layer (3), and a second electrode layer (4) which are sequentially stacked. The first electrode layer (2) and the second electrode layer (4) are insulated from one another. The array element (10) has a work area (A) and a peripheral area (B) that surrounds the work area (A); the work area (A) comprises multiple sub-work regions (A1); overlapping portions of the first electrode layer (2), diaphragm layer (3), and second electrode layer (4) form multiple cells (C) that are located in the work area (A). Multiple cavities (D) are provided between a portion of the diaphragm layer (3) located within the multiple sub-work regions (A1) and the first electrode layer (2), and may vibrate along a direction perpendicular to the substrate (1) between the first electrode layer (2) and the second electrode layer (4), so as to perform signal conversion; and two adjacent cavities (D) communicate with one another. The diaphragm layer (3) is provided with multiple release holes (E), and the multiple release holes (E) are located in the peripheral area (B); and one release hole (E) communicates with at least one cavity (D).\nA: An optical sensor array substrate (30) and an optical fingerprint collector. The optical sensor array substrate (30) comprises a substrate (31), and the substrate (31) comprises a detection area (30A) and a peripheral area (30R) surrounding the detection area (30A), wherein the detection area (30A) comprises multiple photosensitive pixels (30a), and at least one of the multiple photosensitive pixels (30a) comprises: a thin film transistor (32), which is disposed on the substrate (31) and which has a gate (32a), an active layer (32b), a source (32c) and a drain (32d); a storage capacitor (33), which is disposed on the substrate (31) and which has a first capacitor plate (33a) and a second capacitor plate (33b), the second capacitor plate (33b) being located on the side of the first capacitor plate (33a) away from the substrate (31) and being electrically connected to the source (32c) or the drain (32d) of the thin film transistor (32); a photosensitive element (39), which is located on the side of the storage capacitor (33) away from the substrate (31), and one end of which is electrically connected to the second capacitor plate (33b); a first electrode layer (36a), which is located on the side of the photosensitive element (39) away from the substrate (31) and is electrically connected to the other end of the photosensitive element (39), wherein the orthographic projection of the second capacitor plate (33b) on the substrate (31) at least partially coincides with the orthographic projection of the first electrode layer (36a) on the substrate (31).\nB: The present disclosure provides an acoustic transducer unit, comprising: a base substrate; a first electrode, located on one side of the base substrate; a supporting pattern, located on the side of the first electrode distant from the base substrate, the supporting pattern defining an accommodating slot, at least one release slot, and at least one connection slot, the orthographic projection of the release slot on the base substrate being spaced apart from the orthographic projection of the accommodating slot on the base substrate, and the connection slot being located between the accommodating slot and the release slot to make the accommodating slot communicated with the release slot; a diaphragm pattern, located on the side of the first electrode distant from the base substrate and capable of vibrating in the accommodating slot; and a filling pattern filling the release slot; and a second electrode located on the side of the diaphragm distant from the base substrate. The embodiments of the present disclosure also provide a preparation method for the acoustic transducer unit, and an acoustic transducer.\nC: A touch substrate and a display device. The touch substrate comprises: a base substrate (100); a first electrode layer (110) which is located on one side of the base substrate (100) and comprises a plurality of mutually independent first electrodes (111), the shapes of orthogonal projections of the first electrodes (111) on the base substrate (100) being circular; a second electrode layer (120) located on the side of the first electrode layer (110) facing the base substrate (100) and insulated from the first electrode layer (110), an orthogonal projection of the second electrode layer (120) on the base substrate (100) and the orthogonal projections of the first electrodes (111) on the base substrate (100) having overlapping regions; and a wiring layer (130) located on the side of the first electrode layer (110) facing the base substrate (100) and insulated from the second electrode layer (120), wherein the wiring layer (130) comprises a plurality of touch wires (131), and one touch wire (131) is electrically connected to one first electrode (111) correspondingly.\nD: A liquid crystal lens (100) having at least two drive regions. The liquid crystal lens (100) comprises a first electrode layer (1) and a second electrode layer (2). The first electrode layer (1) comprises a plurality of first electrode groups (10), each of the first electrode groups (10) comprising a plurality of first electrodes (101); the plurality of first electrodes (101) comprised in each of the first electrode groups (10) are configured to receive a plurality of first driving signals (SD 1 ) on a one-to-one basis, and each of the at least two drive regions corresponds to at least one first electrode group (10). The second electrode layer (2) is provided opposite the first electrode layer (1), and comprises at least one second electrode (201) configured to receive at least one second driving signal (SD 2 ) on a one-to-one basis. Driving voltages formed between the first driving signals (SD 1 ) received by the first electrodes (101) located at the same position and the second driving signals (SD 2 ) received by the corresponding second electrodes (201) are equal or substantially equal in the same drive region, and the absolute values of the driving voltages in different drive regions increase in the radial direction of the liquid crystal lens (100) and in a direction pointing to an edge from the center of the liquid crystal lens (100).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a sandwich-type ultrasonic transducer front shroud sub-assembly, composed of a front shroud (100) and a mounting pad (300), wherein the front shroud (100) comprises a front shroud cylinder (3), a front shroud top face (1), a front shroud bottom face (4) and a front shroud screw hole (5); the mounting pad (300) comprises a mounting pad cylinder (38) and a mounting pad through hole (30), and the mounting pad through hole (30) is located in the mounting pad cylinder (38); and the front shroud (100) is disposed in the mounting pad through hole (30), and the front shroud top face (1) is in direct contact with a space (28) at one end of the mounting pad through hole (30). Further disclosed is a sandwich-type ultrasonic transducer equipped with the sub-assembly.\nA: A turnover beam and a refrigerator provided with the turnover beam. The turnover beam comprises a front cover plate (1), a rear cover plate (2), a mounting seat (3) and an elastic structure (4). A cavity is formed by the front cover plate (1) and the rear cover plate (2) which are matched with each other; the mounting seat (3) and the elastic structure (4) are arranged in the cavity; the mounting seat (3) comprises a fixing position (32) connected with a door body, and a rotating shaft (31) articulated with a hole (11) formed in the front cover plate (1); the rotating shaft (31) is provided with a limit stopper (33); one end of the elastic structure (4) is fixed in the cavity, and the other end of the elastic structure is a free end; the elastic structure is matched with the limit stopper (33) in an elastic way; when the door body is arranged at two limiting positions, the free end of the elastic structure (4) is arranged at the two sides of the limit stopper (33); when the door body is arranged between the two limiting positions, the free end of the elastic structure (4) is matched with the limit stopper (33) in a way of elastic extrusion.\nB: Provided are a refrigerator (3), a door body (1) for the refrigerator (3), and a disassembly method for a display control component (10) of the door body (1). The refrigerator (3) comprises a refrigerator body (2) and a door body (1). The door body (1) comprises: a panel (30) comprising a hollow-out window (31); a door liner (40); a pre-embedded box (20), the front end of which is provided with an installation opening (21) corresponding to the hollow-out window (31), the pre-embedded box (20) being provided between the panel (30) and the door liner (40); and the display control assembly (10), which comprises a touch display screen (120), an installation plate frame for fixing the touch display screen (120), and a front cover plate (130) provided at the front side of the installation plate frame, and is configured to pass through the hollow-out window (31) and the installation opening (21) as a whole in sequence and then be installed in the pre-embedded box (20) from front to rear. The front cover plate (130) is detachably connected to the installation plate frame, and the installation plate frame is detachably connected to the pre-embedded box (20) both by means of snap fit connection. The disassembly method comprises: releasing the snap fit connection between the front cover plate (130) and the installation plate frame, and removing the front cover plate (130) from the installation plate frame; and releasing the snap fit connection between the installation plate frame and the pre-embedded box (20), and detaching the installation plate frame and the touch display screen (120) from the interior of the pre-embedded box (20).\nC: A thinned liquid crystal display comprises: a body (10), a mounting seat (20) arranged on the body (10), a mounting rack (30) arranged in the mounting seat (20), a plurality of PCB boards (40), each of which is mounted on the mounting rack (30) and is electrically connected to the body (10), and a cover plate (50) arranged on the mounting seat (20) as a cover. In the thinned liquid crystal display, the mounting seat (20) connected to a front shell (12) of the body (10) and located at a side edge of the body (10) of the liquid crystal display is arranged, a mounting rack (30) is arranged in the mounting seat (20), and a plurality of PCB boards (40) is mounted in the mounting rack (30) in a layered manner, so the space required for mounting the PCB boards (40) is saved, and the liquid crystal display is integrally thinned. Meanwhile, a mounting seat cover plate (50) independent of a back shell (14) of the body (10) of the liquid crystal display is arranged, so that, instead of dismounting the back shell (14), only the cover plate (50) needs to be detached to maintain the PCB boards (40), which is convenient to operate. The cover plate (50) completely covers an opening between the mounting seat (20) and the body (10), so as to not only guard against dust but also keep the appearance of the entire liquid crystal display complete.\nD: Disclosed is an ultrasonic cleaning device, comprising a cleaning tank (10), a tap (20), an ultrasonic cleaning mechanism (30) and a positioning mechanism. The ultrasonic cleaning mechanism (30) is provided with an ultrasonic generator (31), a protective sleeve (32), a balancing weight (35), a lead (33) and an ultrasonic transducer (34), wherein the cleaning tank (10) is provided with a through hole (11), and the inner diameter of the through hole (11) is greater than the outer diameter of the protective sleeve (32); the protective sleeve (32) is sleeved on the lead (33) and passes through the through hole (11); an upper end of the lead (33) is electrically connected to the ultrasonic transducer (34), and a lower end of the lead (33) is electrically connected to the ultrasonic generator (31); an upper end of the protective sleeve (32) is fixedly connected to the ultrasonic transducer (34), and a lower end of the protective sleeve (32) is fixedly connected to the lead (33); the balancing weight (35) is located below the through hole (11), and the balancing weight (35) is detachably fixed on the protective sleeve (32); and the positioning mechanism is arranged on the cleaning tank (10) or the tap (20), and the positioning mechanism is provided with a positioning hole for arranging the ultrasonic transducer (34). By means of the arrangement, the ultrasonic cleaning device is easier to use and is very safe, and same can achieve automatic storage of the ultrasonic transducer.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present disclosure relates to the technical field of acoustic wave transducers, and provides an acoustic wave transducer and a driving method, which can at least partially solve the problem of low focus position adjustment accuracy of existing acoustic wave transducers. The acoustic wave transducer of the present disclosure comprises: a plurality of unit groups, at least some of the plurality of unit groups each comprising a plurality of acoustic wave transduction units, the plurality of acoustic wave transduction units being configured to perform the same operation, and each acoustic wave transduction unit being configured to perform at least one of the following: converting an acoustic wave into an electric signal, and converting the electric signal into an acoustic wave signal; and a plurality of array element signal ends, each of the plurality of array element signal ends being connected to at least two adjacent unit groups, the array element signal ends being connected to different unit groups by means of different switching devices, each switching device being configured to control the connection/disconnection between the array element signal end and the unit group connected thereto, and some of the unit groups connected to any two adjacent array element signal ends being the same.\nA: An ultrasonic endoscope probe and an ultrasonic endoscope system. The ultrasonic endoscope probe comprises a plurality of ultrasonic transducers (20) which are arranged in an annular array; the ultrasonic transducers (20) constitute a transducer array which is arranged in M rows and N columns, that is, each column of the transducer array is composed of at least two ultrasonic transducers (20); due to the transducer array, the ultrasonic endoscope probe not only has good focusing capability in an array distribution direction, but also achieves sound focusing in the extending direction of array elements in each column by changing a pore size, so that the ultrasonic endoscope probe can obtain uniform and consistent acoustic images in near, middle and far fields. Compared with an ultrasonic endoscope probe in the prior art, the detection range of the ultrasonic endoscope probe is greatly widened.\nB: Disclosed is an imaging method in ultrasound scanning. The method comprises: generating a shear wave in a target tissue (S10); selecting an ultrasonic transducer array element group in an ultrasonic probe, and determining a focus position and a transmitting aperture corresponding to the ultrasonic transducer array element group, such that a sound field boundary range formed by the ultrasonic transducer array element group completely covers a region of interest in the target tissue (S11); determining a relative time delay between the transmission times of ultrasonic wave array elements, and controlling the array elements to transmit ultrasonic waves according to the corresponding relative time delays, so as to cause a transmission focusing effect (S12); within a continuous time period, receiving ultrasonic echoes returned from the region of interest, obtaining echo information of different positions in the region of interest corresponding to different time points, and obtaining, according to the echo information, shear wave information corresponding to the region of interest (S14). Also disclosed in the present invention are a corresponding apparatus for performing the foregoing imaging method, as well as an ultrasonic imaging system, which can be widely applied to obtain accurate echo information, as well as to effectively improve imaging frame rates and signal quality.\nC: Provided is an ultrasonic sensor (100), comprising a sensing array (110), wherein the sensing array (110) comprises multiple sensing units (210) arranged in an array, with each of the multiple sensing units (210) comprising a first ultrasonic transducer (211) and a second ultrasonic transducer (212), respectively; the first ultrasonic transducer (211) is used for emitting a sensed ultrasonic wave; the second ultrasonic transducer (212) is used for receiving a reflected ultrasonic wave corresponding to the ultrasonic wave; the first ultrasonic transducer (211) and the second ultrasonic transducer (212) are arranged in parallel on a plane; and the first ultrasonic transducer (211) and the second ultrasonic transducer (212) have the same central shaft (210C), which is perpendicular to the plane.\nD: Disclosed is an ultrasonic transducer, comprising a housing (5), wherein the housing (5) is internally provided with a piezoelectric layer (3), the piezoelectric layer (3) is formed by at least two piezoelectric array elements, and the frequency interval between the piezoelectric array elements is 50 kHz to 1.2 MHz. An acoustic lens (2) is provided at the front end of the piezoelectric layer (3). The acoustic lens (2) is used to make sure that the piezoelectric array elements of different frequencies have a common focus. Further disclosed is a method for manufacturing the ultrasonic transducer.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to the field of piezoelectric transducers, and provides a transducer. The transducer comprises a first wafer (100) and a second wafer (200); the first wafer (100) and the second wafer (200) each comprise a substrate (110, 210), a first oxide layer (105, 205) fixed to one side of the substrate (110, 210), a metal layer (114, 214) fixed to the other side of the substrate (110, 210), and a silicon nitride layer (104, 204), a first electrode (103, 203), a piezoelectric layer (102, 202), and a second electrode (101, 201) which are sequentially deposited on the first oxide layer (105, 205); the substrate (110, 210) comprises a first silicon layer (111, 211), a second silicon layer (113, 213), and a second oxide layer (112, 212) sandwiched between the first silicon layer (111, 211) and the second silicon layer (113, 213); the metal layer (114) of the first wafer (100) and the metal layer (214) of the second wafer (200) are fixedly connected; the first wafer (100) is provided with a cavity (122) and gaps (121, 123); and the second wafer (200) is provided with a cavity (222), a first gap (221), and a second gap (223). Moreover, the present invention further provides a manufacturing method for the transducer. Compared with the prior art, by designing the two wafers, SPL is increased by two times, and the structural stability is improved.\nA: A method for producing a MEMS drive, comprising: providing a wafer substrate (10) having a first oxide layer (12) as well as a first silicon layer (11) and a second silicon layer (13) respectively deposited on opposite surfaces of the first oxide layer (12); after depositing to form a second oxide layer (20) on the surface of the second silicon layer (13), element-doping the first silicon layer (11) to form a doped region (30) spaced from the first oxide layer (12); and depositing a third oxide layer (40) on the surface of the first silicon layer (11), and etching the third oxide layer (40) to form a first oxidation structure (41) at the edge, the first oxidation structure (41) enclosing a first cavity (A). According to the method for producing a MEMS drive, the MEMS drive can be made by processing an existing silicon wafer using a classic wafer producing method, so that the bonding process and the micro-assembly process are canceled, thus simplifying the entire MEMS actuator producing process.\nB: A chip substrate, a sequencing chip, and a manufacturing method therefor. The chip substrate comprises: a wafer layer (111), the wafer layer (111) having uniformly distributed cutting lines; a first silicon oxide layer (112), the first silicon oxide layer (112) being composed of silicon oxide and formed on the upper surface of the wafer layer (111); and a transition metal oxide layer (113), the transition metal oxide layer (113) being composed of transition metal oxide and formed on the upper surface of the first silicon oxide layer (112). The chip substrate has the characteristics of harsh environment resistance such as high temperature resistance and high humidity resistance. Moreover, by changing components such as the pH of a solution containing a sequence to be sequenced and a surfactant, a functional area of the surface of the chip substrate can specifically adsorb the sequence to be sequenced.\nC: Provided in the present invention is a sequencing chip. The sequencing chip comprises: a chip main body, a nucleic acid, and a phosphonic acid polymer film, wherein the chip main body comprises a plurality of chip units arranged on a same layer, said chip units are obtained via performing cutting on a chip matrix along cutting lines of a wafer layer, and said chip matrix comprises: the wafer layer, said wafer layer having uniformly distributed cutting lines; a first silicon oxide layer, the first silicon oxide layer being made up of silicon oxide and formed on an upper surface of the wafer layer; a transition metal oxide layer, said transition metal oxide layer being made up of a transition metal oxide and formed on an upper surface of the first silicon oxide layer; the nucleic acid is fixed on the transition metal oxide layer; and the phosphonic acid polymer film is made up of a polyphosphonic acid polymer and formed on an upper face of the transition metal oxide layer.\nD: Provided are an ultrasonic transducer preparation method, an ultrasonic transducer and an information acquisition element. The method comprises: forming a first electrode on a substrate layer; forming a passivation protection layer on a first surface of the first electrode; forming a circuit layer on a first surface of the passivation protection layer; removing the substrate layer; forming a piezoelectric layer on a second surface of the first electrode; and forming a second electrode on a first surface of the piezoelectric layer. Due to the fact that the substrate layer is removed, the thickness of the ultrasonic transducer is small, and the ultrasonic transducer can be suitable for a scenario where an ultrathin ultrasonic transducer is needed. An effective device structure layer through which ultrasonic signals generated by the ultrasonic transducer pass during propagation does not comprise a substrate layer, such that energy loss caused by the ultrasonic signals penetrating the substrate layer is prevented, and the ultrasonic performance of the ultrasonic transducer is better.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are an ultrasonic transducer preparation method, an ultrasonic transducer and an information acquisition element. The method comprises: forming a first electrode on a substrate layer; forming a passivation protection layer on a first surface of the first electrode; forming a circuit layer on a first surface of the passivation protection layer; removing the substrate layer; forming a piezoelectric layer on a second surface of the first electrode; and forming a second electrode on a first surface of the piezoelectric layer. Due to the fact that the substrate layer is removed, the thickness of the ultrasonic transducer is small, and the ultrasonic transducer can be suitable for a scenario where an ultrathin ultrasonic transducer is needed. An effective device structure layer through which ultrasonic signals generated by the ultrasonic transducer pass during propagation does not comprise a substrate layer, such that energy loss caused by the ultrasonic signals penetrating the substrate layer is prevented, and the ultrasonic performance of the ultrasonic transducer is better.\nA: Embodiments of the present application provide an ultrasonic transducer, an information acquisition element and an electronic device. The ultrasonic transducer comprises a vibrating diaphragm layer, a fixed supporting layer, a variable supporting layer and a substrate; the fixed supporting layer is fixedly connected to the vibrating diaphragm layer and is used for supporting the vibrating diaphragm layer; the variable supporting layer is arranged between the substrate and the vibrating diaphragm layer; when the variable supporting layer is in contact with the vibrating diaphragm layer, a first frequency is provided, and when the variable supporting layer is separated from the vibrating diaphragm layer, a second frequency is provided. The ultrasonic transducer can achieve multiple different working frequencies, thus improving the energy of transmitting signals and the sensitivity of receiving signals.\nB: An ultrasound probe, an endoscope, an endoscopic imaging system, and an endoscopic imaging method, the ultrasound probe comprising: a base (10), an optical fibre element (20), a lens group (30), and an annular array ultrasonic transducer (40); the base (10) is a hollow base; the optical fibre element (20) is positioned in the base (10) and is used for transmitting laser light emitted by a laser; the lens group (30) is positioned on one side of the base (10) and is used for shaping the laser light transmitted by the optical fibre element (20) to form a first cone-shaped light, the first cone-shaped light being used for irradiating an object to be imaged and exciting the object to generate photoacoustic signals; and the annular array ultrasonic transducer (40) is arranged in an annular manner on the outer side of the base (10) and is used for collecting the photoacoustic signals, the photoacoustic signals being used for forming a three-dimensional photoacoustic image of the object; thus, the annular array ultrasonic transducer (40) that collects photoacoustic signals is used together with the first cone-shaped light emitted by the lens group (30) to directly acquire photoacoustic signals of an annular area for realising an annular photoacoustic image, increasing the speed of photoacoustic imaging and thereby improving the quality of photoacousting imaging.\nC: Provided in the embodiments of the present application are an ultrasound ablation system and a control method therefor. The ultrasound ablation system comprises: an ultrasonic transducer, an ultrasonic detection apparatus and a protection apparatus, wherein the ultrasonic transducer is used for emitting continuous ultrasonic waves to a human body, so as to form an ablation region in the human body and form, outside the surface of the human body, a reflection focal point corresponding to the ablation region; the ultrasonic detection apparatus comprises a probe, and the probe is used for emitting an ultrasonic wave to the human body, so as to acquire a monitoring image of the human body; and the protection apparatus is used for determining a positional relationship between the probe and the reflection focal point according to a first position of the probe and the monitoring image, controlling the probe to be far away from the reflection focal point when the positional relationship meets a preset condition, and making the ultrasonic transducer ablate a target tissue in the ablation region. By means of the embodiments of the present application, a probe and a sensor thereof are effectively prevented from being damaged, thereby greatly reducing application and maintenance costs, and greatly prolonging the actual usage time of the embodiments of the present application.\nD: Disclosed in the present invention are an endoscopic ultrasonography system and an ultrasonic transducer thereof. The ultrasonic transducer comprises: a piezoelectric wafer, configured to emit and receive an ultrasonic signal, the piezoelectric wafer enclosing an annular structure; a column circuit board, arranged on one face of the piezoelectric wafer, wherein the column circuit board is provided with a plurality of column electrodes which are parallel to one another and are independently arranged, the electrode directions of the column electrodes are the axial direction of the ultrasonic transducer, each of the plurality of column electrodes is provided with a column electrode pad for welding with a cable wire, and the plurality of column electrode pads are arranged on the side of the column circuit board close to a connecting end of the ultrasonic transducer; and a row circuit board, arranged on the other face of the piezoelectric wafer, wherein the row circuit board is provided with a plurality of row electrodes which are parallel to one another and are independently arranged, the electrode directions of the row electrodes are the circumferential direction of the ultrasonic transducer, each of the plurality of row electrodes is provided with a row electrode pad for welding with the cable wire, and the plurality of row electrode pads are arranged on the side of the row circuit board close to the connecting end of the ultrasonic transducer. The described ultrasonic transducer improves the imaging effect.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn air-pressure-type dual-bin air-powered separator. An upper side wall of a separation bin (11) is in communication with an upper side wall of a material drop bin (12); a conveyor mesh belt (5) connects the separation bin (11) and the material drop bin (12) through the communication opening between the two; an air curtain separating the two bins is provided at the communication opening; a material outlet (9) is provided at the bottom of the material drop bin (12); the top of the separation bin (11) is provided with a negative-pressure air-suction port (6); a material inlet (4) is provided at the bottom of the end facing the conveyor mesh belt (5) on a side wall of the separation bin (11); a vibration groove (3) is provided at the bottom of the separation bin (11); a damping plate (2) is provided at the bottom of the vibration groove (3); an air inlet (1) facing an opening at the bottom end of the separation bin (11) is provided at the lower portion of the damping plate (2); an end of the vibration groove (3) connects to a removed material drop outlet (10). The air-powered separator can separate useless particles of different densities from material according to needs, collect useful material, prevent material particles from breaking and becoming smaller due to mechanical fiction, and has the characteristics of high efficiency, low energy consumption, simple structure, and low material loss.\nA: A paste separator (100). A separation bin (111) is disposed on the inner surface of the lower part of a main body (110). A separation opening (112) is disposed on the bottom of the separation bin (111). The paste separator comprises a first fixed ring (120), a second fixed ring (130) and an annular rubber pad (140) that are fixed to the separation opening (112). An annular groove (141) for placing the edge of the separation opening (112) is formed in the edge of the annular rubber pad (140). When the annular rubber pad (140) is sleeved with the separation opening (112), the annular rubber pad (140) is located between the first fixed ring (120) and the second fixed ring (130). A handle (150) and a control member (101) are disposed on the main body (110). One end of the control member (101) is fixed to the handle (150) by means of a pin shaft (102), and the other end is connected to a sliding valve (103). A placing hole (115) for placing the sliding valve (103) is formed in the side wall of the bottom of the main body (110). A placing opening (132) for placing the sliding valve (103) is formed in the second fixed ring (130). By controlling the control member (101), the sliding valve (103) is moved in the placing hole (115) and the placing opening (132). When the sliding valve (103) is inserted in the second fixed ring (130), the separation opening (112) is sealed by the sliding valve (103); and when the sliding valve (103) moves outwards from the second fixed ring (130), the separation opening (112) is opened.\nB: Disclosed is a material separation apparatus. The material separation apparatus comprises a feed channel (10), a discharge channel (20), an impurity separation channel (30), and a turbulent flow generation mechanism (60). The feed channel (10) is provided with a feed inlet (11). The discharge channel (20) is provided with a discharge outlet (21). The discharge channel (20) is in communication with the feed channel (10). An air flow flowing from the feed inlet (11) to the discharge outlet (21) is formed in the feed channel (10) and the discharge channel (20). The impurity separation channel (30) is disposed at an intersection of the feed channel (10) and the discharge channel (20). One end of the impurity separation channel (30) is in communication with the feed channel (10) and the discharge channel (20). The position of the impurity separation channel (30) is lower than positions of the feed inlet (11) and the discharge outlet (21). The turbulent flow generation mechanism (60) is disposed at the intersection of the feed channel (10) and the discharge channel (20). The turbulent flow generation mechanism (60) is used for generating an irregular air flow (80). A formation area of the irregular air flow (80) is located between the feed channel (10) and the impurity separation channel (30). The apparatus overcomes the limitation of a magnetic separation mode, and improves the effect of material impurity separation.\nC: Disclosed is a preliminary oil-water separation and filtration structure, comprising a storage bucket (1), a separation bin (2), air pipes (17) and an air exhaust mechanism which are arranged inside a housing, wherein the air pipes (17) are arranged at the top of both the storage bucket (1) and the separation bin (2); the air pipes (17) lead to the air exhaust mechanism; the air exhaust mechanism comprises an air blower (18) and an activated carbon layer (19); one end of the air blower (18) is connected to the air pipes (17), and the other end leads to the activated carbon layer (19); the storage bucket (1) is divided into two independent inner cavities by a partition plate (3); oil-water mixtures in the two inner cavities are mixed after overflowing the top of the partition plate (3); a stirring rod (5) is arranged on a bottom face of each inner cavity; the stirring rods (5) are mounted on the storage bucket (1) via sealing bearings (6); a flow channel port (9) for the oil to overflow is arranged at an upper edge of a rotary slope face (8); the flow channel port (9) leads to the separation bin (2); the separation bin (2) is divided into a water bin and an oil bin; a hydrophilic and oleophobic separation layer (10) is arranged at an outlet of the flow channel port (9); the separation layer (10) is arranged obliquely downward; an oblique lower end of the separation layer (10) leads to the oil bin; the water bin is located on a lower side of the separation layer (10); a water outlet (11) is arranged in the water bin; and an oil outlet (12) is arranged in the oil bin.\nD: A thermal separation apparatus for recycling oil-based drilling waste of an offshore oilfield, comprising a servo motor (2), a thermal separation bin body (5), a mixing bin (13), a second feed pipe (16), and a rotating shaft (17). A cover body (4) is fixedly installed on one side of the thermal separation bin body (5) by means of a fastening screw (1). A ceramic wear-resistant arc plate (7) is fixedly installed below the inner wall of the thermal separation bin body (5). A hole is formed in the middle of one side of the cover body (4) and a second bearing (18) is embedded in the hole. A first bearing (8) is embedded in one side of the inner wall of the thermal separation bin body (5). The inner wall of the first bearing (8) and the inner wall of the second bearing (18) are fixedly connected to both ends of a rotating shaft (17), respectively. A hole is formed in the bottom of the thermal separation bin body (5) and communicates with one end of the second feed pipe (16). The other end of the second feed pipe (16) communicates with the bottom of the mixing bin (13). The top of the mixing bin (13) communicates with a first feed pipe (9), and a liquid level sensing apparatus (12) is embedded in one side of the top of the mixing bin (13).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA spotlight structure of the present invention, comprising a main body, a waterproof front cover, and a waterproof rear cover; the main body is provided with a front cavity and a rear cavity, and a focusing assembly, a light adjustment assembly and a color temperature adjustment assembly are provided in the cavities; threads are provided on outer walls of the front and rear ends of the main body, dovetail grooves are provided at the roots of the threads, and O-shaped rings are sleeved on the dovetail grooves; and inclined edges are provided on the edges of the waterproof front cover and the waterproof rear cover close to the O-shaped rings, the waterproof front cover is in threaded connection with the front end of the main body, and the waterproof rear cover is in threaded connection with the rear end of the main body. The object of the present invention is to provide a spotlight structure which is waterproof and integrates light brightness adjustment, color adjustment and light spot adjustment.\nA: Disclosed is an intelligent anti-theft device, comprising an upper cover (1), a micro central processing unit (10), a hollow tube (2), a battery (20), a screw (3) and an expansion nut (4), wherein the upper cover (1) is provided with an inner cavity; the micro central processing unit (10) is arranged inside the inner cavity of the upper cover (1); the upper cover (1) is in threaded connection with one end of the hollow tube (2); the battery (20) is arranged inside the hollow tube (2); the micro central processing unit (10) is electrically connected to the battery (20); the other end of the hollow tube (2) is provided with an inner thread, through which the hollow tube (2) is in threaded connection with one end of the screw (3); and the other end of the screw (3) is in threaded connection with the expansion nut (4). The intelligent anti-theft device is an intelligent anti-theft product. The purpose thereof is to provide an intelligent anti-theft device having a lightweight structure, being easy to use, capable of being conveniently locked, having a high compatibility for convenient assembly to a bicycle or an electric vehicle, being dust-proof and water-proof, and enabling the bicycle or the electric vehicle assembled with the anti-theft device to have an anti-theft function.\nB: The present utility model relates to an air brush head structure, comprising an air brush handle body and a spray head, wherein a spray needle is provided in the air brush handle body; a nozzle is provided in the spray head; a nozzle base is clamped in the air brush handle body; an air channel is provided between the air brush handle body and the nozzle base; the rear end of the spray nozzle is connected in the nozzle base in a threaded manner; the outer wall of the middle of the nozzle matches the inner wall of the front end of the nozzle base via a conical surface; the inner wall of the rear end of the spray head is connected to the outer wall of the front end of the air brush handle body in a threaded manner; the front end of the nozzle penetrates the spray head and partially extends out of the nozzle; the inner wall of the spray head abuts against the outer wall of the nozzle; and the front end of the nozzle is connected to a nozzle cap in a threaded manner. The whole structure is convenient to assemble and disassemble, is convenient to clean and replace later on, and the concentricity of the nozzle and the handle body can be ensured, so as to achieve uniform and fine spraying.\nC: A lamp holder structure for a waterproof stage lamp, comprising a lamp body support (1), a front head cover (2) and a rear head cover (2) respectively disposed on the front side and the rear side of the lamp body support (1), a lens assembly (4) disposed above the lamp body support (1), a heat dissipation assembly (3) disposed below the lamp body support (1), a light source (5) disposed in a cavity of the lamp body support (1), and a plurality of optical components (6) arranged in the direction of a primary optical axis. The optical components (6) are connected and fixed to the inner wall of the lamp body support (1). The lens assembly (4), the lamp body support (1), and the heat dissipation assembly (3) are all disposed in a cavity formed by joining the front head cover (2) and the rear head cover (2) together. The front head cover (2), the rear head cover (2), the lens assembly (4), and the heat dissipation assembly (3) are sealedly connected to the lamp body support (1) along the edges to form an all-around waterproof structure. The lamp holder structure has a good waterproof effect, is convenient to mount and demount, and is beneficial to subsequent maintenance.\nD: An inflatable sprayer. The sprayer comprises: a bottle body (1), which is a main body used for filling with liquid, inflating with gas and for spraying, wherein the upper end of the bottle body (1) is provided with a liquid filling port (2), and the lower end of the bottle body (1) is provided with an inflation cavity (3) in an integrally recessed inward manner; a waterproof ventilation device (4), which is arranged at a position where the upper end of the inflation cavity (3) is in communication with the interior of the bottle body (1); a sealing cover (5), which is in rotary retaining threaded-connection with the liquid filling port (2) of the bottle body (1) and is used for filling with the liquid and installing a spraying pump assembly (7) in a sealing manner; a mounting cavity (6), which is provided on the sealing cover (5) in an integrally upward-protruding manner; the spraying pump assembly (7), which is a main part for realizing liquid feeding and spraying, wherein the spraying pump assembly (7) is arranged in the mounting cavity (6) and penetrates upward through the top of the mounting cavity (6) and extends to the outside of the bottle body (1); and an inflation pump assembly (8), which is an assembly arranged in the inflation cavity (3) and is used for inflating the interior of the bottle body (1) with compressed gas. In the inflatable sprayer, the design of the liquid filling port (2) being arranged at the upper part and the inflatable structure being arranged at the lower part is realized, and the waterproof ventilation device (4) is used, such that the inflatable sprayer has a good sealing performance, is safe and reliable, and can be reused.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a steam ejection type organic garbage disposer, which is provided with a steam pressure maintaining steel cylinder (6), an ejection steel cage, a feed screw cap (2) and an ejection initiating cylinder (14), wherein the ejection steel cage is slidingly installed in the steam pressure maintaining steel cylinder (6); a steam inlet is provided on the steam pressure maintaining steel cylinder (6); a feed inlet (17) is provided at the upper end of the ejection steel cage; the lower end of the ejection steel cage is fixedly installed with a piston rod of the ejection initiating cylinder (14); and the feed screw cap (2) is installed on the feed port (17) of the ejection steel cage. The garbage disposer has a simple structure, is suitable for instantaneous ejection, has high-pressure resistance, high strength and convenient loading, and has uniform and ordered discharge and a more stable ejection slide during steam ejection.\nA: Disclosed is a multi-functional organic garbage disposal integrated machine, comprising a shell body (1); a feed port (11) formed on the top of the shell body (1), an air cylinder (2) arranged on a side surface of the shell body (1), and a work chamber formed inside of the shell body (1); wherein, a pushing plate (3), hobbing cutters (6) and a cleaning device (7) are arranged in the work chamber (12); the pushing plate (3) is positioned on the right side of the feed port (11); an outer contour of the pushing plate (3) is sealed and connected with the work chamber (12); the pushing plate (3) is driven by the air cylinder to do reciprocating motion in the work chamber (12); a baffle plate (4) is fixedly arranged on the pushing plate (3); a feed port (11) can be opened and closed by the baffle plate (4); the hobbing cutters (6) are positioned on the left side of a blanking port (13); two groups of hobbing cutters (6) are mutually meshed and are arranged in the work chamber (12) along a horizontal direction; the cleaning device (7) comprises a cleaning pipeline (72) and a spray head (71); the spray head (71) is embedded in the side face of the pushing plate (3) and faces to the left side; the cleaning pipeline (72) is sealed and connected with the spray head (71); and the part of the cleaning pipeline (72) in the work chamber (12) is a bendable hose. The equipment has small equipment running resistance, is not easy to be jammed, and meanwhile has the functions of drying garbage and cleaning the equipment.\nB: A power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power source unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, by means of percussion, the power source unit body for catapulting releases high-pressure gas, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power source unit body for catapulting.\nC: A power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, high-pressure gas may be released through percussion of the power unit body, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power unit body.\nD: An ejection structure, comprising an ejection base (10), and an ejection assembly (20), a driving assembly (30), a transmission assembly (40), and a trigger assembly (50) which are movably mounted on the ejection base (10). The ejection base (10) is provided with an ejection groove; the ejection assembly (20) is slidably provided in the ejection groove; the transmission assembly (40) is rotatably mounted on the ejection base (10), and the transmission assembly (40) is in matching connection to the driving assembly (30); the trigger assembly (50) is retractably and movably provided on the ejection base (10), and the trigger assembly (50) is snap-fitted to the ejection assembly (20) in a matching manner.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn automatic sorting apparatus, comprising a sorting cylinder (32), a cover plate, a shredding knife (34), a separation shaft (17), separation blades, a filter (35), a separation motor (38), and a material flow guiding apparatus. The upper end of the sorting cylinder (32) is connected to the cover plate. The filter (35) at the bottom portion of the sorting cylinder (32) is formed by sequential connection of a material output section without holes (46) of an intake end and a material output mesh section with holes connected to the output section without holes (46). The lower portion of the filter (35) is provided with a flow guiding cavity. A rinse water collection trough (52) is provided at one side of the lower end surface of the material flow guiding cavity, and a material drop opening (49) is provided at the other side. The material flow guiding apparatus is provided inside the flow guiding cavity. The rinse water collection trough (52) is separated from the flow guiding cavity by a liquid filter (39). Employing the described structure, the present automatic sorting apparatus features a novel structure, stable operation, convenient replacement, high working efficiency, and a long service life.\nA: Disclosed is an automatic sorting machine for sorting crabs. The automatic sorting machine comprises a feeding mechanism and a sorting mechanism, wherein the feeding mechanism is arranged in front of the sorting mechanism; a weighing mechanism and a sorting device are arranged in the sorting mechanism; the feeding mechanism is connected to the sorting device by means of a conveyor belt; the weighing mechanism is arranged below the conveyor belt; a control mechanism is arranged on one side of the conveyor belt; and the weighing mechanism and the sorting device are both connected to the control mechanism. The automatic sorting machine for sorting crabs in the present invention has a simple structure, is rationally designed and easily produced, and has a high degree of automation; crabs are weighed by means of providing the weighing mechanism, and are then sorted by means of the sorting device according to the weighing result, so that the amount of human labor is reduced, and the sorting efficiency is improved; in addition, the problem of harm to sorting personnel during the sorting process is effectively solved, so that the automatic sorting machine better meets the requirements of enterprises.\nB: Disclosed is a combined wet-dry classification system for municipal household waste, comprising a dry-type fragmentation and pneumatic classification apparatus and a wet-type water separation apparatus, wherein the dry-type fragmentation and pneumatic classification apparatus comprises a feed inlet (1), a fragmentation compartment (2), a sieve (6), a pneumatic classification chamber (7), and a self-adaptive conveyor belt (9); a slow rotating cutter (3) and a fast rotating cutter (4) rotating in the same direction are provided adjacent in the fragmentation compartment, the slow rotating cutter being mounted directly below the feed inlet; a blower (8) is mounted at the left-hand side of the pneumatic classification chamber; the wet-type water separation apparatus comprises a pool (10), a feed inlet (11) provided at the front of the right-hand side of the pool, a support (12) provided above the pool, a baffle plate (13) fixedly provided on the support, a fragmenting blade (14) and a checking and selection apparatus (15), a water inlet pipe (16) provided at the left end of the pool, an overflow port (17) provided in the middle part of the pool wall at the right-hand rear end of the pool, a circulating water pump (19), a filter mesh (18), a material outlet (21), a deflector (22) and a sediment outlet helix (23); and the circulating water pump is in communication with the pool via a circulating water pipe (20). The system can be used for problems such as waste easily intertwining and jamming when fragmenting, can run continually, can completely separate corrosive organic matter, light-weight combustible matter, and inorganic matter, and the moisture content of the light-weight combustible matter is reduced.\nC: Disclosed in the present invention are a kitchen waste processing method and a processing apparatus, comprising an automatic lifting material intake apparatus, a salt and grease removal apparatus, an oil-water separation apparatus, an automatic sorting apparatus, a drying apparatus, a waste heat recovery apparatus, and a control system, characterized in that a water outlet of the salt and grease removal apparatus is connected to the oil-water separation apparatus, a material outlet is connected to a material inlet of the automatic sorting apparatus, a material outlet of the automatic sorting apparatus is connected to a material inlet of a drying tank of the drying apparatus by means of an electric ball valve, an air outlet of the drying tank is connected to a vacuum pump by means of the waste heat recovery apparatus, and negative vacuum pressure is formed inside the drying tank by means of the operation of a vacuum pump. Employing the described structure, the present invention features a novel structure, a high degree of automation, a marked solid-liquid separation effect, short drying times, low power consumption, and high operational stability, and also conserves energy, is environmentally friendly, and does not emit odors, among other advantages.\nD: A special vacuum excrement collection and sewage discharge treatment system comprises a waste box (4). A sewage filtering and washing apparatus (10) is mounted on one side of the waste box (4). The sewage filtering and washing apparatus (10) comprises at least a filter screen supporting cylinder (101). A filter drum (102) is accommodated inside an inner cavity of the filter screen supporting cylinder (101), and the filter drum (102) is hollow. Active carbon is disposed inside a sandwich layer formed by the inner wall surface and the outer wall surface of the filter drum (102) to form an active carbon filter layer (103). Multiple filtration pores are formed in the inner wall surface and the outer wall surface of the filter drum (102) to form a filter screen. One end of a flow guide pipe (105) provided with spray holes (104) is disposed in the inner cavity of the filter drum (102) and is used as a flushing water outlet, and the other end of the flow guide pipe (105) is disposed outside the waste box (4) and is used as a flushing water inlet. The inner cavity of the filter drum (102) is in communication with a treated-drainage water port (106) disposed on the waste box (4). An opening (107) in communication with the inner cavity of the waste box (4) is further formed in the filter screen supporting cylinder (101) and is used as an inlet for sewage to be treated and an outlet for waste after treatment. After the sewage filtering and washing apparatus (10) is additionally disposed on an existing waste box (4), liquid and solid are separated on the apparatus, the sustained use time of the system is increased, and normal use of an excrement collection system in various states can be ensured.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method of preparing a nano-scale zero-valent iron, comprising the following steps: (1) adding, in an inert atmosphere, polyethylene glycol and deoxy ethanol to an aqueous solution of ferrous salt, and mixing; (2) mixing the solution obtained in step (1) with an alkaline aqueous solution containing boron hydride and performing a reduction reaction; (3) after the reduction reaction in (2) is complete, obtaining a precipitate; and (4) vacuum drying the precipitate to obtain nano-scale zero-valent iron. A surfactant combined with the prepared nano-scale zero-valent iron can markedly improve remediation efficiency of soil polluted with volatile organic compounds (VOCs).\nA: A method for preparing sodium-based bentonite loaded zero-valent iron. First, natural bentonite is fully sodiumized at a pH value of 3, and then sodium-based bentonite and an iron salt are evenly mixed according to a specific ratio and placed in a three-necked flask; the pH value is adjusted to 11 by using a sodium hydroxide lye, an excessive amount of sodium borohydride solution is added dropwise to the three-necked flask, stirring is continued, and nitrogen is continuously aerated during the reaction so as to ensure that the inside of the flask is in an oxygen-free state; after finishing dropwise adding the sodium borohydride, stirring is continued such that same is fully reacted with the iron salt, and the product is loaded on the bentonite; and centrifugal separation is performed and the supernatant is removed, the remaining solid is washed three times by using pure water and absolute ethanol, and then freeze-drying is carried out to obtain zero-valent iron sodium-based bentonite. Further disclosed is an application of sodium-based bentonite loaded zero-valent iron. The rates of removing lead and pentachlorophenol from compound polluted groundwater by a sodium-based bentonite loaded zero-valent iron material can reach 98.0% and 96.1%, providing a realistic and feasible method for solving the problem of compound pollution of groundwater.\nB: A supercritical hydrothermal synthesis method for metal or metal oxide nanoparticles comprises the following steps: fully mixing a soluble metal salt solution with an alkaline solution or with a mixture of an alkaline solution, a reducing agent solution and an organic ligand to serve as a reaction precursor of supercritical hydrothermal synthesis; using a high-pressure pump to separately pressurize and pump the reaction precursor and preheated supercritical water into a mixer, heating up by direct mixing, and then performing a supercritical hydrothermal synthesis reaction; and after reaction for a period of time, cooling, centrifuging and drying the obtained product, so as to obtain metal or metal oxide nanoparticles. The metal or metal oxide nanoparticles prepared by using the method have the advantages of small particle size, good dispersibility, and high purity.\nC: The present invention relates to a method for preparing a water-purifying charcoal composite material with a low loading amount of nano zero-valent iron and nano silver. The water-purifying charcoal composite material with a low loading amount of nano zero-valent iron and nano silver prepared by the preparation method has a high specific surface area, the loading amounts of iron and silver are low in the composite material, and the particle sizes of the nano zero-valent iron and nano silver particles are both less than 20 nm. The water-purifying charcoal composite material can simultaneously adsorb and convert or degrade a variety of pollutants in drinking water, and the release amount of iron and silver is extremely low, and so same is a water-purifying material with great application value.\nD: The present invention provides a method for preparing a graphene/nano-carbon particle composite. The method comprises: 1) oxidizing graphite to prepare oxidized graphene, and adding the obtained oxidized graphene into water to prepare a suspension liquid; 2) adding nano-carbon particles into a water solution with a surface active agent to obtain a suspension liquid of the nano-carbon particles; 3) mixing the suspension liquid of the oxidized graphene with the suspension liquid of the nano-carbon particles, so as to obtain a mixed suspension liquid; 4) performing spray drying on the uniformly mixed suspension liquid to obtain powder; and 5) performing reduction treatment on the powder obtained in step 4), or placing the powder obtained in step 4) in an inert gas atmosphere, preheating the powder, and then performing reduction reaction in a reducing atmosphere, so as to finally prepare the graphene composite loaded with the nano-carbon particles. The present invention also relates to the graphene/nano-carbon particle composite obtained by using the method of the present invention, and applications of the graphene/nano-carbon particle composite used as a supercapacitor material, a catalyst carrier or an infrared optical material.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA combined roller apparatus, comprising a basic roller (1) and at least one adjustable roller (2). The basic roller (1) and the adjustable roller (2) are both mounted on a center shaft (3). The adjustable roller (2) is mounted on a side face of the basic roller (1) and can be close to or distant from the basic roller (1). An adjustable working face (21) is provided on the adjustable roller (2). A basic working face (11) is provided on the basic roller (1). The adjustable working face (21) works in conjunction with the basic working face (11) to achieve continuous material forming work. The combined roller apparatus can produce products of different specifications in a production line without roller replacement.\nA: A twist drill for smart home processing. The twist drill comprises an adjustable portion (2), wherein a mounting portion (1) is formed at one end of the adjustable portion (2), and a working portion (3) is fixed to the other end thereof, the adjustable portion (2) comprises an adjustable cavity with an open end close to the working portion (3), an adjustable mechanism (21) is fixed to the end inside the adjustable cavity that is close to the mounting portion (1), and a shock absorption mechanism (23) is fixed to the end thereof close to the working portion (3). The length adjustment function of the twist drill in use can be achieved by means of the adjustable mechanism (21), such that the application range of the twist drill is expanded. The vibration amplitude of the working portion (3) can be effectively reduced by means of the shock absorption mechanism (23), thereby preventing a drill bit from breaking due to large vibration amplitude, and also improving stability and precision of the drill bit during working.\nB: An extrusion roller device and rolling mill equipment, the extrusion roller device comprising: a moving extrusion roller (20) and a rotating shaft (10), the rotating shaft comprising an eccentric shaft segment (11), and the moving extrusion roller comprising a left extrusion roller (21) and a right extrusion roller (22); the left extrusion roller is axially fixedly mounted on a left mounting shaft (111) of the eccentric shaft segment, while the right extrusion roller is arranged opposite to the left extrusion roller and is axially fixedly mounted on a right mounting shaft (112) of the eccentric shaft segment; the axis of the left mounting shaft and the axis of the right mounting shaft are parallel and do not overlap; when the rotating shaft rotates, the left extrusion roller and the right extrusion roller rotate synchronously with the eccentric shaft segment to form a left and a right extrusion surface having a height difference. By means of mounting the left extrusion roller and the right extrusion roller of the moving extrusion roller on the eccentric shaft segment of the rotating shaft respectively, when the rotating shaft rotates, the outer diameters of the extrusion surfaces of the two extrusion rollers may generate different height differences at different positions such that the working position of the extrusion rollers may be adjusted, while the phenomenon of bending deformation of the rotating shaft is reduced, thus increasing the precision of extrusion work.\nC: An adjustable welding tooling for a plastic packaging IPM, comprising a substrate (1), wherein a first groove (2) for accommodating a PCB board (4) and a second groove (3) for accommodating a DBC board (5) are arranged on the substrate (1), the depth of the second groove (3) being greater than the depth of the first groove (2); and a slide block (6) is arranged at the bottom of the second groove (3), and the slide block (6) is adjustable in a longitudinal position in the second groove (3). The slide block (6) is arranged at the bottom of the second groove (3), and the slide block (6) is adjustable in the longitudinal position in the second groove (3), so that the longitudinal position of the DBC board (5) placed in the second groove (3) can be adjusted during the usage process, so as to complete brushing a solder paste onto the surfaces of a PCB board (4) and a DBC board (5) and complete the assembly with a wire frame without changing the tooling, so that a tooling device is saved, the work efficiency is improved, and the qualified rate of finished products is further improved.\nD: A drilling and bursting heading machine, comprising a drilling and bursting device (1), an angle control device, a forward-backward telescopic device, and a cantilever type heading machine (2). The drilling and bursting device (1) is mounted on a forward-backward moving component of the forward-backward telescopic device by means of the angle control device; the forward-backward telescopic device is mounted on the cantilever type heading machine (2); the drilling and bursting device (1) comprises a fixing support (1-20), as well as a rock drilling component and a bursting component fixedly mounted on the fixing support (1-20); the angle control device comprises a mounting base (1-15), an auxiliary rotary hydraulic motor (1-14), an adjustment hydraulic cylinder (1-13), and a main rotary hydraulic motor (1-12); when the forward-backward moving component of the forward-backward telescopic device completely extends out, a distance from a front end of the drilling and bursting device (1) to a working plane is less than a distance from a front end of a cutting head of the cantilever type heading machine (2) to the working plane. The drilling and bursting heading machine has a compact structure and is able to quickly implement punching and bursting on a hard rock stratum having a rock hardness greater than 10 without increasing the power consumption, so that the heading efficiency is improved and potential safety risks are reduced.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stacked drive compact multi-roller rolling mill, comprising a machine frame (6), roller shafts (2) and rollers (1) disposed on the roller shafts (2); a plurality of roller shafts are circumferentially arranged in the same plane so that the rollers on the roller shafts form rolling holes; the multi-roller rolling mill further comprises drive shafts (3) in one-to-one correspondence with the roller shafts; drive gears (3-1) are disposed on the drive shafts; the roller shafts are provided with driven gears (2-1) engaged with the drive gears; the drive shafts are further provided with bevel gears (3-2); neighboring bevel gears on different drive shafts are mutually engaged so that the planes of the roller shafts and the planes of the drive shafts form a stacked drive structure. By employing stacked drive, the multi-roller rolling mill reduces the complexity of a rolling mill drive system, shortens the drive chain, improves drive efficiency, and avoids adverse effect on the engagement of the bevel gears during roll gap adjustment.\nA: An auto-leveling drive axle device for a wheel tractor, and leveling method. The device comprises a transmission device and a leveling device. The transmission device comprises a drive axle housing (2), a half-shaft bevel gear (3), a vertical transmission shaft (4), and a wheel-side planetary reduction gear mechanism (9). The vertical transmission shaft (4) has an upper end connected to an upper vertical shaft bevel gear (5) via a spline, and a lower end fixed to a lower vertical shaft bevel gear (11). The half-shaft bevel gear (3) is mounted on the drive axle housing (2) by means of a bearing, and meshes with the upper vertical shaft bevel gear (5). The lower vertical shaft bevel gear (11) meshes with a bevel gear of the wheel-side planetary reduction gear mechanism (9) to drive a wheel (8). The leveling device employs a hydraulic system, and the hydraulic system comprises a hydraulic solenoid-operated directional control valve (10) and a hydraulic cavity in communication therewith and provided below the drive axle housing. By controlling a liquid to flow into or out of the hydraulic cavity, the drive axle housing (2) is driven to move upward or downward with respect to the wheel (8), thus realizing leveling of the drive axle. The device of the present invention changes only a vertical position of a drive axle with respect to a wheel, and a wheel shaft distance and wheel center spacing are not changed, thus improving traveling stability of a vehicle.\nB: A flexible shaft transmission system for a motorcycle comprises a first gear box (1). A first driving gear (11) and a driven gear (12) meshed with each other are provided in the house of the first gear box. The first driving gear is connected with a spline output shaft of a motorcycle engine through a spline hole being coaxial with the first driving gear. The first driven gear is fixedly mounted on a first gear shaft (13), and the first driven gear is engaged with a second driven gear (14). A driving bevel gear (16) is coaxially fixed with the second driven gear through a second gear shaft (15). The driving bevel is meshed with a driven bevel gear (17), and the driven bevel gear is connected with the input end of a transmission flexible shaft (3) at an equal rotating speed. The house of the first gear box is composed of a first box body (18) and a first box lid (19). The first driving gear, the first gear shaft and the second gear shaft are respectively supported on the first box body and the first box lid through bearings arranged on the two ends thereof. The transmission system is reasonably structured, expediently manufactured and is suitable for mass production. Furthermore, the accuracy of the first gear box is well kept and the service life of the transmission system is prolonged.\nC: Disclosed are an independently driven rolling mill and a unit therefor, the independently driven rolling mill comprising an electric motor (6), a gearbox (4), a bevel gear box (1-1, 1-2) and a roller box (2) arranged in succession, wherein one electric motor corresponds to one gearbox and is connected via a connecting shaft I (5), the gearbox and the bevel gear box are connected via a connecting shaft II (3), and one bevel gear box corresponds to one roller box and is connected via geared transmission. Using an independent electric motor drive, the equipment structure is much simpler than a centralised drive, the equipment structure is simple and compact and more convenient for increasing high speed operating stability of the equipment; by means of different rolling directions, the unit enables rolling mills to be arranged at the same side or alternately arranged on different sides, which can significantly save on space occupied by rolling mills in the width direction, enabling the whole structural layout to be more compact.\nD: Disclosed is a high-efficiency stirring and mixing machine, comprising a stirring and mixing pool, two vertically arranged guide rails, and a machine frame moving along the guide rails, characterized in that a transverse mounting frame is arranged on the machine frame, a driving shaft is rotatably arranged on the mounting frame, an actuator connected to the driving shaft is arranged on the machine frame, and both ends of the driving shaft are connected, via a transmission belt, to a stirring and mixing frame located in the stirring and mixing pool; and multiple driving bevel gears are coaxially arranged on the driving shaft, driven bevel gears engaged with the driving bevel gears are rotatably arranged on the mounting frame, the center of each of the driven bevel gears is connected to a rotary shaft extending downwards into the stirring and mixing pool, and each of the rotary shafts is provided with a mixing mechanism. The key point of the technical solution thereof is that the actuator drives the driving shaft to rotate, so that the mixing mechanisms cooperate with the stirring and mixing frame to simultaneously mix materials so as to mix same more thoroughly.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA high-efficiency dephosphorization method and apparatus. The high-efficiency dephosphorization apparatus comprises a pressure-bearing cavity for circulating a dephosphorization medium. The pressure-bearing cavity is provided with a dephosphorization medium inlet. The side wall of the pressure-bearing cavity close to the surface of a metal blank to be dephosphorized is provided with a jet outlet passage of the dephosphorization medium. The jet outlet passage is a long, narrow slot, so that the stream jetted to the surface of the metal blank is in a non-diffused sheet shape. The pressure-bearing cavity is a pipeline with a circular axial cross section. The pipeline is integrally formed or formed by joining two semicircular grooves. The pressure-bearing cavity is in a bar shape, an annular shape or a special shape. In the present invention, the dephosphorization medium is in a non-diffused sheet form after being jetted, the pressure is basically not diffused, so that the utilization efficiency of the pressure is improved, the jet speed of the dephosphorization stream is reduced, and the service life of the dephosphorization apparatus is extended; in addition, the high-efficiency dephosphorization apparatus has no installation condition limitation, and especially when a protection apparatus is arranged, the jet distance of the dephosphorization stream can be reduced, and the flow efficiency can be improved.\nA: A multi-section water-soluble pipeline occluder, comprising a blocking part (1), the cross-section of the blocking part (1) being circular, and also comprising a pressure-bearing part (2) disposed on one side, a sealant (3) being arranged at the adjoining part of the blocking part (1) and the pressure-bearing part (2), the side surface of the pressure-bearing part (2) being provided with an accommodating part (4) for accommodating the sealant (3), and the blocking part (1), the sealant (3), and the pressure-bearing part (2) all being made of water-soluble material. The present multi-section water-soluble pipeline occluder can increase efficiency and safety.\nB: A wireless charging transmitter compression-resistant device capable of convection heat dissipation for an electric vehicle, comprising a closed mounting chamber made of a heat conduction material, and a pressure bearing chamber located on the mounting chamber and covering the mounting chamber. The mounting chamber is internally provided with an inner core layer (4); the bottom of the pressure bearing chamber is formed of the top of the mounting chamber; the side wall of the pressure bearing chamber is provided with heat dissipation channels making the pressure bearing chamber in communication with the outside; the top surface of the mounting chamber is provided with a protrusion (32) for supporting the inner top surface of the pressure bearing chamber; the bottom surface of the mounting chamber and the bottom surface of the side wall of the pressure bearing chamber are flush with each other, and are both supported on the ground. The device has high structural strength and good heat dissipation performance.\nC: Disclosed are an A/O-MBBR process-based integrated sewage treatment device and a sewage treatment method. The sewage treatment device comprises a clarification tank, an anoxic tank, a first-stage aerobic tank, a second-stage aerobic tank and a sedimentation tank which are sequentially connected via an overflow structure. A power structure is provided at the bottom of the sedimentation tank. The power structure is connected to the clarification tank via a return pipe. The return pipe is provided with a phosphorus removal agent access port and a pipe mixer. The pipe mixer is located downstream of the phosphorus removal agent access port. The anoxic filler in the anoxic tank is a combined filler, and is formed by combination of a polyurethane filler and a plastic spherical shell wrapping same. A carbon source agent access port is provided in a water inlet baffle of the anoxic tank. The aerobic fillers in the two aerobic tanks are respectively a high-density polyethylene MBBR filler and a PPC biological carrier. The components are installed in a housing, and the housing is made of a glass steel material. The sewage treatment device and the sewage treatment method use an A/O-MBBR pure biofilm process, have a strong impact resistance, and are supplemented with a chemical dephosphorization and carbon source feeding device, which can effectively enhance the removal of nitrogen and phosphorus contaminants.\nD: A mixed jet descaling device axially and eccentrically arranged for the inner wall of a metal pipe comprises a support rod (1) arranged inside the metal pipe (100), the support rod being parallel to the central axis of the metal pipe, eccentrically arranged and not concentric with the central axis of the metal pipe; and at least two spray nozzle units (2, 2', 2") for spraying the mixed jet, the spray nozzle units being arranged from front to back along the length direction of the support rod. At least two mixed jet spray nozzles (21, 21', 21") are provided in each spray nozzle unit and uniformly arranged along the circumference of the support rod in such a manner that the mixed jet spray nozzles diverge towards periphery of the support rod with the axis of the support rod as the center. The mixed jet spray nozzles of the spray nozzle units arranged from front to back are staggered from front to back in the circumferential direction of the inner wall of the to-be-descaled metal pipe, thereby forming a mixed jet spray nozzle matrix and creating an effective descaling zone capable of completely covering the circumferential surface of the inner wall of the metal pipe. The descaling device can achieve continuous, high efficient, stable and environment-friendly descaling for the inner wall surfaces of cold-state metal pipes.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA cooling apparatus for casting medium and large-sized propellers, comprising a supercooling box (9); a liquid conveying pipeline (4) which is uniformly distributed in a snakelike array is disposed in the supercooling box; a liquid nitrogen storage tank (2) is disposed above the supercooling box, and the liquid nitrogen storage tank is connected to a liquid nitrogen pump (1), wherein one end of the liquid conveying pipeline communicates with the liquid nitrogen storage tank, and the other end of the liquid conveying pipeline is connected to the liquid nitrogen pump; a plurality of air intake fans (3) are disposed on the right side of the supercooling box, a cooling box (6) is disposed on the left side of the supercooling box, a casting is disposed in the cooling box, and a plurality of exhaust fans (7) are disposed on the left side of the cooling box; a plurality of groups of dustproof filter screens (8) are disposed on the outer sides of the air intake fans and the exhaust fans, and the dustproof filter screens are disposed in slots on a box wall. The described cooling apparatus utilizes liquid nitrogen to efficiently cool castings, and uses detachable dustproof filter screens, which are convenient to replace, can prevent dust from sticking to air intake fans and exhaust fans, and keeps equipment clean, thus preventing obstructions to airflow caused by dust being attached to fan blades.\nA: Disclosed in the present invention is a cooling device for machine tool casting production, comprising a cooling table; support pads are fixedly mounted on a lower surface of the cooling table at positions close to two sides, and support frames are fixedly mounted on an upper surface of the cooling table at positions close to the edges at two sides, a support plate is supported on top ends of the support frames, and a water storage tank is fixedly mounted on an upper surface of the support plate, a water pump is provided inside the water storage tank, an output end of the water pump is connected to a delivery pipe, one end of the delivery pipe extends to the outside of the water storage tank, a spray head is connected to one end of the delivery pipe, and support tables are fixedly mounted on outer sides of the support frames, cooling fans are fixedly mounted on upper surfaces of the support tables, and cold air ducts are connected to output ends of the cooling fans. The cooling device for machine tool casting production of the present invention can conveniently push a casting onto a cooling table, and can improve the stability of casting placement.\nB: A greenhouse cultivation device employing heat generated by a variable-frequency drive or inverter. The device comprises a greenhouse (1). Several rows of heat dissipation elements (2) and ventilation pipes (3) are buried underground in the greenhouse. The heat dissipation elements are formed by multiple sheet-like radiators (21) connected in series, and each of the radiators is provided with a cooling liquid inlet (211) and a cooling liquid outlet (212). The cooling liquid inlet of a first radiator is connected to a heat generation element of a variable-frequency drive or an inverter via a cooling liquid pipe (4). The cooling liquid outlet of a last radiator is connected to an in-line pump (5) via a cooling liquid pipe. The ventilation pipes have two ends protruding from the ground and located outside of the greenhouse, and have walls extending upward to form several air discharge pipes (32) protruding from the ground and located within the greenhouse. A roof of the greenhouse is provided with a skylight. A temperature sensor is provided within the greenhouse. The device fully utilizes waste heat generated by a heat generation element of a variable-frequency drive or an inverter, thus saving energy for winter cultivation in a greenhouse, and is environmental friendly and energy saving.\nC: A greenhouse cultivation system employing heat generated by a variable-frequency drive or inverter. The system comprises a greenhouse (1). Several water channels (2) and ventilation pipes (3) are arranged in parallel and buried underground in the greenhouse. Each of the water channels is secured with a heat dissipation tube (4) therein and provided with a cooling liquid inlet (21) and cooling liquid outlet (22), and the heat dissipation tube has one end fastened to the cooling liquid inlet of said water channel and the other end fastened to the cooling liquid outlet of said water channel. The cooling liquid inlets of the water channels are connected to a heat generation element (6) of a variable-frequency drive or an inverter via a cooling liquid pipe (5), and the cooling liquid outlets of the water channels are connected to an in-line pump (7) via a cooling liquid pipe. The ventilation pipes have two ends protruding from the ground and located outside of the greenhouse, and have walls extending upward to form several air discharge pipes (32) protruding from the ground and located within the greenhouse. A roof of the greenhouse is provided with a skylight. A temperature sensor is provided within the greenhouse. The system fully utilizes waste heat generated by a heat generation element of a variable-frequency drive or an inverter, thus saving energy for winter cultivation in a greenhouse, and is environmental friendly and energy saving.\nD: A structure for cooling a cylinder head of a four-stroke engine. Arranged at the center of the cylinder head (1) is a fuel injector sleeve (2). Arranged around the fuel injector sleeve (2) are four valve seats (4) distributed evenly along the circumferential direction. Provided at a bottom face of the cylinder head (1) is a cooling water inlet (1a), which is used for introducing cooling water from a machine body to the cylinder head (1). Arranged within the cylinder head (1) is a cooling water passage (1b) in communication with the cooling water inlet (1a). The cooling water passage (1b) is arranged around the four valve seats (4). Arranged around the fuel injector sleeve (2) is a cooling chamber (1d) used for cooling a fuel injector and an air inlet/outlet passage. The cooling chamber (1d) is arranged above the cooling water passage (1b) and is in communication with the cooling water passage (1b) via a cooling water inlet passage (1c). The cooling water inlet passage (1c) is arranged in proximity around the fuel injector sleeve (2). Provided at a top part of the cooling chamber (1d) is a cooling water outlet (1e) used for discharging the cooling water. The mechanical load and heat load capacities of the cylinder head of the present invention are greatly improved, thus allowing for highly efficient completion of cooling of components of the cylinder head.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a vertical milling insert (5) and a dense gear milling cutter, wherein the vertical milling insert (5) comprises an insert body (1) and a cutter head unit, the insert body (1) is provided with a mounting hole (11) for mounting the vertical milling insert (5) on the milling cutter, the cutter head unit is mounted on the insert body (1), and the cutter head unit is of a dual cutter head structure. In the vertical milling insert (5), a folded surface structure cooperates with a positioning structure in the milling cutter for positioning, and when in use, the folded surface structure will not be worn, such that reliable positioning can be ensured when two cutters are used.\nA: A disc-type underreamer, helping process different apertures, comprises a main shaft (1) connected to a motor output shaft. One end of the main shaft (1) is connected with a circular aperture regulation disc (2), and the aperture regulation disc (2) is rotatably sheathed in a cutterhead (3) arranged on the front end of the aperture regulation disc (2). A rear side of the cutterhead (3) is provided with an embedding groove (30) in nested cooperation with the aperture regulation disc (2), and a front side of the cutterhead (3) is radially provided with at least one pair of blade assemblies (5) symmetrically arranged relative to the center of the cutterhead (3). Each blade assembly (5) comprises a blade (50), a cutter holder head (51), and a cutter holder driving block (52) fixed on the cutter holder head (51). The blade (50) is perpendicularly fixed on the cutter holder head (51). Two sides of a junction of the cutter holder head (51) and the cutter holder driving block (52) form an ''I''-shaped groove (511), the corresponding cutterhead (3) is radially provided with an inverse ''T''-shaped groove (31), and the ''I''-shaped groove (511) on the junction of the cutter holder head (51) and the cutter holder driving block (52) is sheathed in the inverse ''T''-shaped groove (31) of the cutterhead (3) and capable of sliding along the radial direction. An inner side of the aperture regulation disc (2) is provided with an involutes-shaped spiral groove (20) distributed on the whole disc surface. A bottom side of the corresponding cutter holder driving block (52) is provided with a plurality of tooth blocks (520) engaged with the spiral groove (20).\nB: A practical knife having a locking structure. The practical knife comprises a housing (1), a knife frame (2), a blade (3), a pushing button (4), and a knife frame locking device (5); the front end of the housing (1) is provided with a blade stretchable port (11) which can be used for stretching and retracting the blade (3), and a sliding groove which can be used for moving the pushing button (4) is provided on the side surface of the housing (1); and the blade (3) is mounted in the housing (1) by means of the knife frame (2) in a matched manner, and the blade (3) is controlled to be stretched and retracted in the blade stretchable port (11) by means of the pushing button (4); the knife frame locking device (5) achieves stretching locking the blade (3) by locking the knife frame (2). The knife frame locking device is adopted for locking the knife frame, the stretchable movement of the blade is limited, and thus the locking of the blade is achieved, and it is guaranteed that when this product is used, the blade cannot automatically stretch and retract so as to influence the cutting work.\nC: A milling cutter for chamfering, comprising a body (10), at least one blade (20), and at least two guide posts(30); the body (10) comprises an installation section (11) and a cutting section (12); the blade (20) is removably installed on the cutting section (12), therefore the blade (20) can be separately replaced when worn dull; the guide posts(30) are disposed on the cutting section (12) and protrude out of the outer surface of the cutting section (12), therefore when the blade (20) contacts and cuts a hole wall, the guide posts (30) simultaneously press against the hole wall, achieving the effects of reducing relative vibration and polishing; and the cutting section (12) itself is in a simply conical shape, thus facilitating manufacturing and reducing cost.\nD: Disclosed are a protection member (3), a blade assembly (10), and a mower (20). The mower (20) comprises: a machine body (206), a disk cutter (1), and the blade assembly (10), wherein the disk cutter (1) is arranged on the machine body (206); the blade assembly (10) is connected to the disk cutter (1) so as to follow the rotation of the disk cutter (1); and the blade assembly (10) comprises a blade (2) provided with a cutting part (21), and the protection member (3) arranged outside the blade (2) to prevent the cutting part (21) from being accidentally touched, the blade (2) is connected to the disk cutter (1), and at least part of a side edge of the cutting part (21) is exposed from the protection member (3) to facilitate cutting. In this way, by means of providing the protection member (3), the cutting part (21) of the blade (2) can be prevented from coming into direct contact with a person, such that the person can be prevented from being cut by the blade (2), so as to improve the use safety of the mower (20), and the blade (2) can also be protected so as to prolong the service life of the blade (2).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is an automatic pipe drilling device, comprising a machining table (16), wherein a material guide pipe (2) is fixedly installed on the machining table (16); a machining notch (17) is provided in the middle of an upper portion of the material guide pipe (2); clamping assemblies used for assisting with fixing a pipe (1) are installed on the portions, on two sides of the machining notch (17), of the material guide pipe (2); a top plate (5) is arranged above the material guide pipe (2), and the top plate (5) is fixedly connected to the material guide pipe (2) by means of first telescopic cylinders (4) arranged on two sides of the top plate; a drill rod (14) is rotatably mounted in the top plate (5), the drill rod (14) is driven by a driving mechanism arranged at the top of the top plate (5) to rotate, and a drill bit (15) is mounted at a lower end of the drill rod (14); and a plurality of telescopic grinding heads (19) are circumferentially distributed on an upper portion of the drill bit (15), and an air pump (13) used for controlling the grinding heads (19) to extend and retract is mounted at the top of the top plate (5). The drilling device has a good drilling machining effect on a pipe, and inner and outer surfaces of a hole can be ground and deburred, and same is conducive to application and popularization.\nA: A sewing machine for garment production and processing, comprising a treadle-type sewing machine driving mechanism (2), supporting legs (4), a processing platform (6), and a sewing machine body (8). A driving motor (1) is mounted on the supporting legs (4), and a driving pulley (21) is mounted on an output shaft of the driving motor (1); the driving pulley (21) is connected to a driven pulley (11) mounted on a driving shaft of the sewing machine by means of a transmission belt (13); a connector (20) is further mounted at the end portion of the output shaft of the driving motor (1); a first U-shaped frame (15) is mounted on the lower side of the processing platform (6); a first sliding sleeve (16) is provided on the first U-shaped frame (15) in a matched and sliding mode; a generator (17) is mounted on the lower side of the first sliding sleeve (16), and a connecting base (19) is mounted on an output shaft of the generator (17); and manual telescopic cylinders (22) are further fixed to the supporting legs (4) and connected to the generator (17), and an illuminating lamp (7) electrically connected to the generator (17) is further mounted on the lower side of the processing end of the sewing machine body (8). According to the sewing machine, random switching between electric driving and treadle driving can be carried out, and the illuminating requirements of a working area can be ensured in a situation without electricity, such that the working progress is not influenced.\nB: Disclosed is an automatic processing device, specifically an automatic grain milling apparatus comprising a machine body (16). A grinding cavity (2) and a milling cavity (19) are respectively provided on an upper portion and a lower portion of the machine body (16). A rotary tube (6) is mounted at the center of the top portion of the machine body (16). The rotary tube (6) is driven to rotate by a drive mechanism provided on an outer side of the machine body (16). Multiple grinding blades (1) are mounted on the rotary tube (6) at a lower portion of the grinding cavity (2). A two-shaft extension motor (22) is supported and fixed by means of a support assembly in the milling cavity (19). An upper milling seat (25) is mounted and fixed on an upper output shaft of the two-shaft extension motor (22). A lower milling seat (21) is mounted and fixed on a lower output shaft of the two-shaft extension motor (22). A milling recess (11) forming a clearance fit with the upper milling seat (25) is provided at the top of the milling cavity (19). The grinding cavity (2) and the milling recess (11) communicate with each other by means of a material discharge hole (7). A material filter plate (20) matching the lower milling seat (21) is further provided in the milling cavity (19). Pre-grinding, secondary milling, and air blowing are performed, thereby achieving a good grain milling effect, improving the efficiency, and facilitating promotion.\nC: A board material high precision drilling apparatus for computer production, which relates to the technical field of equipment for computer production and machining. The apparatus comprises a base cabinet (1), support posts (2) are fixedly connected at two sides on the base cabinet (1), a mount ring (4) is fixedly connected at upper ends of the support posts (2), a mount cabinet (5) is fixedly connected at top parts of the support posts (2) above the mount ring (4), a separating plate (41) is fixedly connected at an upper end within the mount cabinet (5), mount posts (10) are rotatably connected within the mount cabinet (5) below the separating plate (41), cylindrical cams (6) are fixedly sleeved on the mount posts (10), mount rods (9) are fixedly connected at bottom parts of the separating plate (41) on the side of the cylindrical cams (6), rotating rods (18) are rotatably connected on the mount rods (9), an arc-shaped gear disc (8) is fixedly connected at one end of each rotating rod (18), extending and retracting cylinders (12) are fixedly connected at bottom parts of the separating plate (41) between the mount rods (9), a first mount plate (15) is fixedly connected at bottom parts of the extending and retracting cylinders (12), gear racks (11) are fixedly connected at two sides of the first mount plate (15), a second mount plate (17) is fixedly connected between the gear racks (11) below the first mount plate (15), and a drill bit (29) is rotatably connected at a bottom part of the second mount plate (17). The apparatus has a sensible structure in principle and design, operation and use are quick and convenient, and the apparatus is highly practical.\nD: The present invention relates to the field of stainless steel pipe machining, and specifically to a surface polishing apparatus for a stainless steel pipe, comprising a top plate and a bottom plate base. A second support frame and a first support frame are fixedly mounted between the top plate and the bottom plate base, respectively; a polishing cylinder is rotatably mounted on the first support frame; an inner cavity is formed in the inner side of the polishing cylinder in a penetrating mode; polishing bristles are mounted on the cavity wall of the middle of the inner cavity; multiple dust suction holes are formed in the cavity walls of two ends of the inner cavity; the multiple dust suction holes are communicated with an annular cavity; a driving assembly used for driving the polishing cylinder to reciprocatingly rotate is further mounted on the first support frame; a dust removal box is further mounted on the first support frame; an exhaust fan is mounted on the dust removal box; and the exhaust fan is used for exhausting air at the two ends of the inner cavity through the multiple dust suction holes. The present invention can perform an all-around polishing operation, and can perform a synchronous and reliable dust removal operation during polishing, such that the surface polishing machining effect and efficiency of the stainless steel pipe are improved.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a rotary cutting tool, comprising a cutting portion (10), wherein the cutting portion (10) is provided with an auxiliary spiral groove (102) and a plurality of right-handed main spiral grooves (101) with the same spiral angle. The auxiliary spiral groove (102) comprises a left-handed spiral groove spiralling up from a front end of the cutting portion (10) to a rear end thereof. The auxiliary spiral groove which spirals up and the main spiral grooves are provided with a plurality of cutting teeth (130) with trapezoidal sections at the cutting portion (10). Along the spiral direction of the auxiliary spiral groove, the tooth widths of adjacent cutting teeth (130) are partially superposed. Since the tooth shape of the rotary cutting tool is of an approximately rectangular trapezoidal structure, it is ensured that the tooth width is substantially unchanged in the process of cutting and as abrasion increases, thereby ensuring the stability of cutting. Moreover, the alternation of teeth on the rotary cutting tool helps to remarkably improve chip-removal performance and cutting performance, so that not only are machined board edges of good quality, but also the service life of the cutting tool is prolonged.\nA: A miniature drill bit. The miniature drill bit comprises: a first rake face, a first flank face, a second rake face and a second flank face that are arranged at the position of a drill point; a first spiral groove extending from the drill point to a drill tail, and a second spiral groove symmetrical to the first spiral groove, the first spiral groove being intersected with the first rake face to form a first cutting edge, and the second spiral groove being intersected with the second rake face to form a second cutting edge; and a bias groove arranged at the position of a large-bit area of the drill bit, the bias groove being intersected with the second rake face, so that the length of the second cutting edge is smaller than that of the first cutting edge, and the bias groove being intersected with the second spiral groove.\nB: A drill bit for drilling a PCB comprises a body (10). One end of the body (10) is a drill tip, and a groove and breadth ratio constant segment and a groove and breadth ratio alternating change segment are sequentially disposed from the end where the drill tip is located to the other end of the body (10). A long spiral groove (101) and a short spiral groove (102) that are spirally surrounding and that are not intersected are formed in the outer side of the body. The groove and breadth ratio of each of the long spiral groove (101) and the short spiral groove (102) is constant at the groove and breadth ratio constant segment. The groove and breadth ratio of each of the long spiral groove (101) and the short spiral groove (102) changes alternately at the groove and breadth ratio alternating change segment. The short spiral groove of the groove and breadth ratio constant segment is connected to a staggered groove staggered with the short spiral groove. In the drill bit for drilling a PCB, the double-spiral-groove non-intersection design is used, the groove and breadth ratio alternately changes on the rear section of the drill bit, the two grooves discharge cuttings independently, the drill bit is unlikely to be blocked by the cuttings, and the cutting temperature can be controlled in a small range. In addition, the area of a cross section entity of the spiral groove and the core thickness taper can be increased, the bend resistance strength of the drill bit is improved, the hole site machining precision is high, and the machining quality of a drilled hole is good.\nC: A transversely-cutting compound drill bit, comprising a body (10). The body (10) comprises thereon multiple chip accommodating grooves (5) rotatedly provided according to a first right-handed helical line (11), and multiple cutting units (20) distributed on second right-handed helical lines (12) on either side of the chip accommodating grooves (5). The cutting units (20) comprise cutting teeth (4) and chip separating grooves (6) corresponding to the cutting teeth (4). The cutting teeth (4) are successively distributed in groups on the second right-handed helical lines (12) next to the corresponding chip separating grooves (6). The multiple chip separating grooves (6) are in communication with the chip accommodating grooves (5) The cutting teeth and the chip accommodating grooves of the transversely-cutting compound drill bit are helically distributed along the axis, thus increasing cutting and chip removal effects.\nD: A cutting tool and a cutter head structure (100) thereof. The cutter head structure (100) comprises a cutting edge portion (2), and the cutting edge portion (2) comprises a cutting body (21). The outer surface of the cutting body (21) is a cambered surface protruding forward, and is provided with a first cutting edge (22) and at least two second cutting edges (23). The first cutting edge (22) extends from one side of the cutting body (21) to the top region and then to the other side of the cutting body (21), the second cutting edges (23) are respectively disposed at two ends of the first cutting edge (22). A first chip groove (24) is defined between the first cutting edge (22) and the adjacent second cutting edge (23), and the width of the first chip groove (24) gradually increases from the top region to the two ends of the cutting body (21). The cutting tool provides high processing accuracy and stability and good chip discharging properties, and the service life of the cutting tool can be greatly prolonged.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA cutting machine (100), comprising a base (10) and a cutting system (30), positioning and feeding system (40), material collecting system (50), and a control box (60), all disposed on the base (10). The cutting system (30) and positioning and feeding system (40) are both electrically connected to the control box (60). The cutting system (30) is used to cut a material, the positioning and feeding system (40) is used to position and move the material as needed for material processing, and the material collecting system (50) is used to collect and recycle the scrap material generated from cutting. The cutting system (30) comprises a explosion-proof motor (31), a revolving shaft (32), a power transmission belt (33) connected to one end of the revolving shaft (32) and to the explosion-proof motor (31), a saw blade (34) disposed on the other end of the revolving shaft (32), and a guard (35) covering the saw blade (34). The positioning and feeding system (40) comprises a servomotor (41) and a positioning jig (42) disposed on the servomotor (41). The positioning jig (42) is used to position or secure the material, and is driven to move by the servomotor (41) such that the material is cut by the saw blade (34). The provision of the guard (35) prevents high-temperature scrap material from flying out during the cutting process, enhancing safety. Movement of the material for cutting is automatically controlled by the positioning and feeding system (40), reducing manual labor and enhancing productivity.\nA: A cutting device (20), comprising a cutting member (40) and a valve leaflet positioning mechanism (30). The cutting member (40) is provided with a cutting section (42) at a distal end, and the cutting section (42) is electrically connected to an ablation power supply at a proximal end; the cutting section (42) is used to cut a valve leaflet; and the valve leaflet positioning mechanism (30) is used to stabilize the position of the cut valve leaflet. Since the valve leaflet positioning mechanism (30) is capable of stabilizing the position of the cut valve leaflet, the cutting part (42) is placed on a valve leaflet to be cut and forms a radial cut on the cut valve leaflet by moving. The cut valve leaflet splits and forms an opening at a coronary artery, and may push open an original valve leaflet when a transcatheter heart valve is implanted. Therefore, the cut valve leaflet will not block the coronary artery orifice and will prevent the original valve leaflet from covering the coronary artery orifice during transcatheter aortic valve replacement and cause blocking. Also disclosed is a cutting system (100) provided with the cutting device (20).\nB: Disclosed is a tapping machine (100), comprising a rack (10), a feeding module (20), an unloading module (50), a positioning fixture (60) mounted on the rack (10), a tapping device (40) docking with the positioning fixture (60), and a control unit, wherein the tapping device (40) comprises a positive tapping module (410), and the positive tapping module (410) comprises a plurality of tapping shafts (4103) and a plurality of first servo motors (4101) corresponding to the plurality of tapping shafts (4103) on a one-to-one basis. The control unit is connected to the feeding module (20), the unloading module (50), the positioning fixture (60) and the tapping device (40), and controls the feeding module (20), the unloading module (50), the positioning fixture (60) and the tapping device (40) to act in a predetermined order, thereby realizing a cycle of action for feeding, tapping and unloading. At the same time, the plurality of tapping shafts (4103) can simultaneously tap a plurality of positions of a workpiece, thus allowing the tapping time to be shortened greatly.\nC: A cutting tool (100), comprises a housing (20); a motor (22) accommodated in the housing (20); a drive mechanism (23) connected to the motor (22) so as to drive a blade (24), the blade (24) having a blade plane; a bottom plate (136) connected to the housing (20), the bottom plate (136) comprising a first bottom plate (136) having a first bottom surface (138) and a second bottom plate (148) having a second bottom surface (152); an abutment surface (140), coplanar with the blade plane, is provided on at least one of the first bottom plate (136) and the second bottom plate (148), the abutment surface (140) is used for cooperating with a guide surface (111), the first bottom plate (136) and the second bottom plate (148) move relative to each other so as to expose the abutment surface (140). This cutting tool (100) operates very conveniently. Since the relative movement of the first bottom plate (136) and the second bottom plate (148) enables the exposure of the abutment surface (140), when cutting a workpiece, the abutment surface (140) cooperates with the guide surface (111), and then the cutting tool (100) moves to cut.\nD: A tire material (100) conveying device, comprising a conveying frame (10), a lifting member (20), a positioning component, and a cutting component (40). The conveying frame (10) is provided with a cutting position. The tire material (100) is conveyed forwards on the conveying frame (10). The lifting member (20) is provided below the tire material (100), and can move from bottom to top to lift the tire material (100). The positioning component is provided above the tire material (100), and comprises a first pressure plate (31) and a second pressure plate (32) arranged at intervals. The first pressure plate (31) can release or press a tire component (100a). The cutting component (40) is provided above the conveying frame (10), and can move between the first pressure plate (31) and the second pressure plate (32) to cut the tire material (100) when both the first pressure plate (31) and the second pressure plate (32) are located at the pressing position.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for machining a housing having a side protrusion, comprising: performing stepped deep drawing on a sheet material (50) to obtain a housing having side walls (52), a bottom (53), and an opening (510), wherein rounded corners are formed between the side walls (52) and the bottom (53), and a deep-drawn step (55) having the height of a side protrusion is formed on the side wall (52); pressing the side walls (52) backward to decrease the rounded corners between the side walls (52) and the bottom (53), such that the thickness at the rounded corners subsequent to the backward pressing is sufficient for computer numerical control (CNC) machining; performing necking on the opening of the deep-drawn step (55), such that the inner side surface and outer side surface of the opening of the deep-drawn step (55) are respectively flush with the inner side surface and outer side surface of the opening of the side walls connected with the deep-drawn step (55); and performing CNC machining on the deep-drawn step (55) to obtain a housing having target dimensions. Moreover, a mold for machining a housing having a side protrusion is provided. The machining method can reduce the allowance for CNC machining, thereby decreasing the machining deformation caused by residual stresses generated by plenty of CNC machining, and meanwhile saves the sheet material, thereby reducing machining costs.\nA: Provided is an easy-assembly laptop shaft, comprising a stop member (1) and a hollow housing (2). The stop member (1) is arranged in the housing (2). Openings (3) are provided at sidewalls of the housing (2) extending in the length direction of the housing (2). The opening (3) has two opposing sidewalls, both of which are provided with protruding portions (31). A protruding portion (31) of one sidewall corresponds to a gap (32) between adjacent protruding portions (31) of the other sidewall. An inner surface of the housing (2) is provided with a positioning groove (21) along a circumferential direction of the housing (2). The positioning groove (21) matches the stop member (1). The stop member can be conveniently positioned within a hollow housing of the easy-assembly laptop shaft and subsequently an opening of the housing can be soldered. Compared with a conventional soldering technique, the utility model improves processing efficiency and assembly accuracy.\nB: A machining process for a large-diameter thin-walled part. The machining process comprises the steps of: S1. selecting a raw material having an appropriate size; S2, machining an inner hole (5); S3. performing shaping; S4. performing aging heat treatment; S5. semi-finishing the inner hole (5) and part of the shape; S6. semi-finishing part of the shape; S7. performing natural aging treatment; S8. finishing the inner hole (5) and a second end (8); S9. finishing a second outer circle (2) and a process step (6); S10. finishing a first outer circle (1); S11. machining and forming a flange (3); and S12. machining and forming multiple protrusions (4). According to the machining process, a stable process route is designed to control deformation, reduce the number of times of positioning and clamping, shorten the machining time, improve machining efficiency and ensure product quality; the one-time machining of all features is implemented by means of the positioning of the inner hole (5), ensuring that product deformation is within a controllable range; reasonable process parameters are used to achieve accurate production guidance work, get rid of the limitation of special person and special machine, and well implement automated production.\nC: Provided are a novel thread and device, particular a thread provided with steps at the side surface to prevent a fastener from getting loose, and a bolt, screw and the like provided with the novel thread. Further provided is a machining method. The steps are located in a threaded fastening force bearing surface; the steps are unfolded from a thread root (2) to a thread top (1) and in an inverted toothed shape; the steps are located at the whole or a part of a portion between the thread root and the thread top; threads matingly engaged are each provided with an anti-loosening thread; the steps can be conveniently machined on the side face of the thread by using a bevel gear hobbing cutter.\nD: A method of manufacturing a metal reinforced rim of a composite material fan blade involves separately manufacturing three parts of a metal reinforced rim (20), including a first sidewall panel (201), a second sidewall panel (202) and a nose cone (203). In a manufacturing process, an inner side surface (201a) of the first sidewall panel and an inner side surface (202a) of the second sidewall panel are separately formed. After the first sidewall panel and the second sidewall panel have been connected, an outer side surface (201b) of the first sidewall panel and an outer side surface (202b) of the second sidewall panel are connected to form a processing surface (20B) for construction of the nose cone (203) of the metal reinforced rim. The invention eliminates an additional step for processing an inner surface of a metal reinforced rim, thereby significantly reducing the difficulties of processing the inner surface of the metal reinforced rim.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA housing assembly (110), comprising a transparent substrate (110) and a reflective layer (120); the transparent substrate (110) is provided with a decorative surface (111), and the decorative surface (111) is provided with coarse region (113); the reflective layer (120) is disposed on the decorative surface (111), and the reflective layer (120) covers at least a part of the coarse region (113).\nA: A housing assembly (10), a processing method therefor, and an electronic device (100). The housing assembly (10) comprises: a substrate (1), which is provided with an inner surface and an outer surface which are arranged opposite to each other, the substrate (1) being a transparent piece; a touch layer (2), which is provided at the inner surface of the substrate (1), the touch layer (2) being suitable for electrically connecting to a motherboard (20) of the electronic device (100); and a decorative layer (10a), which is provided at a side surface of the touch layer (2) away from the substrate (1).\nB: A screen (10) having a high contrast and high luminous efficiency comprises the following layers sequentially stacked from an incident side of projected light rays (31): a micro-lens layer (123), a transparent matrix layer (120), a total reflection layer (121), and a light-absorbing layer (11). The light-absorbing layer (11) absorbs light passing through the micro-lens layer (123), the transparent matrix layer (120) and the total reflection layer (121). The micro-lens layer (123) comprises a plurality of micro-lens units. The total reflection layer (121) comprises a plurality of microstructure units. The microstructure unit has a lower first flat surface (124) and an upper second flat surface (125). The first flat surface (124) intersects the second flat surface (125). The plurality of microstructure units form a serrated structure. The micro-lens units and the microstructure units are at least partially arranged in an alternating manner, such that the micro-lens units converge at least a portion of the projected light rays (31) toward the first flat surface (124). The projected light rays converged toward the first flat surface (124) exit after being totally reflected by the first flat surface (124) and the second flat surface (125) sequentially. Also disclosed is a projection system having the screen.\nC: Disclosed are a color conversion assembly (100) and a manufacturing method therefor, and a display panel, wherein same can mitigate the problem of cross-coloring between neighboring sub-pixels and can improve the light extraction efficiency thereof. The color conversion assembly (100) comprises: a substrate (110); a light blocking layer (120) located on the substrate (110) and having a plurality of channels; and a color conversion layer (140) located in at least some of the channels, wherein the color conversion layer (140) converts incident light (L1) into light of a target color. The light blocking layer (120) comprises: a support layer (121) located on the substrate (110); a black matrix layer (122) extending continuously on an upper surface and a side surface of the support layer (121), wherein the upper surface of the support layer (121) faces away from the substrate (110); and a reflective layer (123) extending continuously on an upper surface and a side surface of the black matrix layer (122), wherein the upper surface of the black matrix layer (122) faces away from the substrate (110).\nD: A liquid crystal display device and a reflective display module (11) thereof. The reflective display module (11) comprises: a first substrate (111); a reflecting layer (113) provided on the first substrate (111) and used for reflecting incident light; and a plurality of color resistors (112) provided on the reflecting layer (113), wherein the incident light enters the reflecting layer (113) through the color resistors (112), and is reflected by the reflecting layer (113) to obtain reflected light, and the reflected light is emitted through the same resistors (112). Therefore, the incident light and the reflected light are prevented from passing through two different types of color resistors (112), thereby improving the reflectivity and eliminating color mixture.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA water jet cutting machine comprises a Y-axis part (1), a Z-axis fixed seat part (2), a Z-axis part (3), a cutting platform (4), a zinc-plated strip (5), a button box (6), a sand box (7), a grinding material feeding device (8) and a cutting head (9). The sand box (7) and the grinding material feeding device (8) form a feeding system. The sand box (7) is composed of an upper hopper (71) and a lower hopper (72) that are connected together by a flange provided with a sealing ring. The upper hopper (71), as a material storage tank, can hold a large amount of grinding material, and the volume of the grinding material in storage can be measured by a sensor. The lower hopper (72) is internally provided with a miniature air cylinder (722); an air cylinder cap (721) moves up and down to close or open the upper and lower hoppers for communication. A sand conveying system provided with a volume control device of the water jet cutting machine avoids wasting sand and gravel during the production process and saves the production cost.\nA: Provided is a water jet machining device, comprising a pressure provision system, a jet system, and a feed provision system. The pressure provision system and the feed provision system are separately connected to the jet system. The jet system comprises a sand-mixing chamber and a nozzle. High-pressure water and an abrasive are mixed to form a mixture in the sand-mixing chamber. The jet system also comprises a shaping tube. A first inlet of the shaping tube is in communication with the exit of the sand-mixing chamber. The exit of the shaping tube is in communication with the nozzle. The mixture is injected into the shaping tube from the exit of the sand-mixing chamber at a low speed, forming a central water jet. The pressure provision system also comprises a buffering medium provision mechanism. The buffering medium provision mechanism is in communication with a second inlet of the shaping tube. The buffering medium provision mechanism injects the buffering medium into the shaping tube. The buffering medium sleeves the central water jet. The central water jet sleeved in the buffering medium is ejected out of the nozzle and works on the component to be machined. The water jet machining device of the present invention lowers the wear rate of the nozzle and the sand-mixing chamber, thereby reducing maintenance costs.\nB: A high-efficient strip cutting machine, used for cutting a raw material roll core (15), and comprising a workbench (1), a rotating mechanism (2) and a movable cutting mechanism (3). The rotating mechanism (2) comprises a rotating mandrel (4), a drive motor (5) is mounted at one end of the rotating mandrel (4) in a matched mode, and the other end of the rotating mandrel (4) is connected to a support (6); an automatic clamping and fixing device is further provided at the end of the rotating mandrel (4) close to the drive motor (5), and comprises a clamping sleeve (7), a bearing (8), a pushing sleeve (9), a transmission sleeve (10), a clamping and fixing plate (11), an air cylinder (12), and a piston (13) provided in the air cylinder (12). After the raw material roll core (15) is mounted on the rotating mandrel (4) by means of the automatic clamping and fixing device, the raw material roll core (15) is automatically fixed by means of the automatic clamping and fixing device, and the raw material roll core can also be automatically released during discharging; time and labor are saved, the manual fixing and releasing time during feeding and discharging is reduced, and the production and processing efficiency is greatly improved.\nC: An automatic edge-tracing device for a laser cutting machine for a sheet material comprises a cutting platform mount (1). A cutting platform (2) is provided at a top end surface of the cutting platform mount (1). A left support (3) and a right support (4) are respectively provided at the left and right sides of the top of the cutting platform mount (1). A left movable block (5) and a right movable block (6) are respectively provided at inner walls of the left support (3) and the right support (4). The left support (3) and the right support (4) are connected by means of a cross rod (9). A power motor (7) is provided at the bottom of the right movable block (6). An output end of the power motor (7) penetrates the right movable block (6) to connect to a rotary shaft (71). The rotary shaft (71) is movably inserted into an inner cavity of a slot (8). The slots (8) are respectively arranged at the inner walls of the left support (3) and the right support (4). Also provided is an edge-tracing method of the automatic edge-tracing device for a laser cutting machine for a sheet material. The automatic edge-tracing device for a laser cutting machine for a sheet material and the edge-tracing method thereof can be operated easily, have high precision, shorten the processing time, improve processing efficiency, and reduce waste of a sheet material resulting from errors in manual alignment.\nD: Disclosed is automatic precast concrete component machining equipment, comprising a material-feeding device (1), a first material-conveying device (3), a second material-conveying device (4), a cleaning device (5), and a mold vibrating device (6). The material-feeding device (1) comprises a material feeding supporting seat (11), an upper end of the material feeding supporting seat (11) is provided with a first slide rail (12), a material-feeding hopper (13) is slidably connected to the first slide rail (12); the cleaning device comprises a water tank mechanism (51), a first cleaning mechanism (52), a second cleaning mechanism (53), and a third cleaning mechanism (54); a lower end of the first slide rail (12) is provided with a material storage device (2), the material storage device (2) comprises a supporting frame (21) and a material storage hopper (22) arranged at an upper end of the supporting frame (21); the first cleaning mechanism (52) is arranged on the material storage hopper (22); the first material-conveying device (3) comprises a first conveying frame (31), an upper end of the first conveying frame (31) is slidably connected with a material-conveying hopper (32); the second material-conveying device (4) comprises a second conveying frame (41) and a mold-conveying mechanism (7); the mold-conveying mechanism (7) comprises a plurality of first rollers (71); and the mold vibrating device (6) is arranged on an inner side of the second conveying frame (41). The machining equipment can be used for machining a precast concrete component more efficiently, the structure is simple and new, and the inventiveness is high.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stepping double-sided shot blasting apparatus, comprising a cleaning chamber (1), a guide rail (2), shaft racks (3), hanging racks (4), a speed reducer (5), a motor (6), a frame (7), and inner supports (8). The cleaning chamber is located below the frame and above the speed reducer. A gap is formed between the cleaning chamber and the frame by means of the inner supports, and the guide rail is horizontally disposed at the gap. The outer wall of the cleaning chamber is provided with impeller heads (1.1), and two sections are provided with gates (1.2). The upper ends of the shaft racks extend into the guide rail, and the lower ends are inserted into gear holes provided inside the speed reducer to move along therewith. Each shaft rack hangs two hanging racks, and the shaft racks and the hanging racks are used for hanging gear blanks. The speed reducer is a planetary speed reducing mechanism, the shaft racks are inserted in shaft holes of four second star wheel (5.6), and when the speed reducer operates, the second star wheels rotate and revolve in linkage with the shaft racks. Under this structural condition, the gear blanks enter the cleaning chamber to be subjected to uniform shot blasting on both sides, and the shaft racks and the hanging racks temporarily located outside the cleaning chamber can be used for loading and unloading the gear blanks to be processed. In the apparatus, the shot blasting procedure and the loading and unloading procedure do not interfere with each other, and therefore, the production efficiency and equipment utilization rate are greatly improved.\nA: An endless belt shot blasting device comprises a shot blasting cabinet. A shot blaster is disposed above the shot blasting cabinet. A shot inlet of the shot blaster is connected to a shot outlet (51) of a shot-sand separator. A laterally inclined steel belt (9) is disposed inside the shot blasting cabinet. A feed roller (8) and a discharge roller (8') are arranged at two sides of the shot blasting cabinet to cooperate with the steel belt to convey shot. The shot blasting device further comprises a shot blasting cabinet angle adjustment mechanism comprising a support (23). A worm gear mechanism (24) is disposed above the support. An inner thread is arranged in a central hole of a worm wheel of the worm gear mechanism. A connecting and supporting block (26) is disposed on a screw mating with the thread of the worm wheel. The shot blasting cabinet is disposed on the connecting and supporting block. The invention uses the angle adjustment mechanism to change a duration a workpiece passes through the shot blasting cabinet, and the use of the steel belt for conveyance enables thorough shot blasting of the workpiece without missing any area of the workpiece.\nB: Disclosed is a speed reducer for driving a window curtain or a door curtain, comprising at least one involute planetary gear reducing mechanism (2), a cycloid gear reducing mechanism (1) in transmission connection to the involute planetary gear reducing mechanism (2), an output shaft (3) connected to the cycloid gear reducing mechanism (1), and a housing assembly (5), wherein the involute planetary gear reducing mechanism (2) comprises a sun gear (21) and at least one planetary gear (22), and the middle of the planetary gear (22) is provided with a mandrel (23) passing therethrough; the cycloid gear reducing mechanism (1) comprises a camshaft (11), the output shaft (3) sheathed at the upper end of the camshaft (11), at least one cycloid gear (13) sheathed on a cam of the camshaft (11), a plurality of pinwheels (14) meshed with a side face of the cycloid gear (13), and at least one pin shaft (15) in parallel to the axial direction for the cycloid gear (13) to pass through, and the upper end of the pin shaft (15) is fixedly connected to the output shaft (3); and the lower end of the camshaft (11) is fixedly connected to a first planet carrier (12), the mandrel (23) penetrates the first planet carrier (12) and is fixedly connected to the first planet carrier (12), the lower end of the sun gear (21) is sheathed with a first bearing (41), and the lower part of the camshaft (11) is further sheathed with a second bearing (42). The size of the speed reducer is small, the transmission efficiency is high, the noise is low, and the self-locking performance is good.\nC: A pellet former for sawdust, comprising: a machine base (1) on which a first electric motor (2) is placed; a reducer (3) connected to one end of an output shaft of the first electric motor (2); a forming mould (4) disposed at a side of the reducer (3), the forming mould (4) comprising a first fixed frame (5), a second fixed frame (6) and a transmission shaft (7), wherein the transmission shaft (7) is connected to the reducer (3), and the transmission shaft (7) is mounted between the first fixed frame (5) and the second fixed frame (6); extrusion gears (8) disposed on the transmission shaft (7); a baffle (9) disposed at the end of the extrusion gears (8) connected to the reducer (3); and an extrusion gear reinforcement lid (10) provided with an outlet orifice, which is disposed at the other end of the extrusion gears (8). The number of the extrusion gears (8) is greater than or equal to two, and two adjacent extrusion gears (8) rotate in opposite directions. An inlet orifice (11) is disposed above two extrusion gears (8), and a casing (12) is disposed surrounding the extrusion gears (8). The pellet former for sawdust can improve efficiency, allow pellets with high density to be formed, and is more labor-saving by means of two extrusion gears pressing inwardly toward each other. The whole former is simple in structure and small in volume, thus requiring smaller space for production and being convenient to repair.\nD: A three-stage two-gear speed reducer and an electric vehicle, relating to the technical field of mechanical transmission. The three-stage two-gear speed reducer comprises a shell (5), and an I-stage speed reducing mechanism, an II-stage speed reducing mechanism, an III-stage speed reducing mechanism and a meshing sleeve (9) which are arranged in the shell (5). The III-stage speed reducing mechanism is a driving and driven cylindrical gear speed reducing mechanism and comprises a driving cylindrical gear (7), and the I-stage speed reducing mechanism and the II-stage speed reducing mechanism are planetary speed reducing mechanisms correspondingly arranged on two axial sides of the driving cylindrical gear (7); and the meshing sleeve (9) is arranged between the II-stage speed reducing mechanism and the III-stage speed reducing mechanism, and is used for connecting the driving cylindrical gear (7) to a planetary gear (3) of the I-stage speed reducing mechanism or a planetary gear (10) of the II-stage speed reducing mechanism, such that two-gear shifting of the speed reducer is achieved. Compared with the three-stage speed reducer in the prior art, according to the three-stage two-gear speed reducer, a multi-parallel-shaft structure is avoided, the I-stage speed reducing mechanism and the II-stage speed reducing mechanism are correspondingly arranged on two sides of the driving cylindrical gear, the layout is more compact, and the power density is high; and furthermore, the stress deformation of parts is reduced, the rigidity of the parts is improved, unbalance loading is reduced, and the service life is prolonged.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA screwdriver, comprising a screwdriver head, the screwdriver head (1) being divided into a first screwdriver head part (11) and a second screwdriver head part (12), and the first screwdriver head part (11) and the second screwdriver head part (12) overlapping to form a complete screwdriver head (1); and a tension mechanism (2), which is used for generating tension so as to drive a screw when the screwdriver head (1) is in contact with a screw recess after the first screwdriver head part (11) and the second screwdriver head part (12) overlap. A screw (7), comprising a cross-shaped recess (71), a side surface of the cross-shaped recess (71) being triangular or quadrilateral. Therefore, after the first screwdriver head part (11) and the second screwdriver head part (12) are combined and inserted into the screw (7), the first screwdriver head part (11) and the second screwdriver head part (12) can be separated by means of the tension mechanism (2). In addition, the tension mechanism (2) provides tension to clamp the screw (7), and therefore, screws made of different materials can be clamped by means of the screwdriver, thereby improving the screw fastening efficiency, and avoiding the processes of magnetizing the screwdriver and so on.\nA: Disclosed is a magazine-type hand-held shaver (100), comprising a shaver head (10), a magazine body (20), a shaver head connection cover (30) and an elastic element (40). The shaver head comprises a first shaver head (10a) and a second shaver head (10b) which are interchangeable. The magazine body is of a hollow structure which forms an accommodation chamber (21) with a removal port (22) located at the upper end of the magazine body, and the shaver head is accommodated inside the accommodation chamber. The lower end of the shaver head connection cover is removably assembled on the magazine body and covers the removal port, and a connection part (31) is provided on the upper end of the shaver head connection cover, and is selectively assembled with the first shaver head or the second shaver head. The elastic element is accommodated inside the accommodation chamber, and tends to constantly drive the shaver head to slide to be opposite to the removal port. The shaver head can be easily stored in or taken out of the magazine body, and the magazine-type hand-held shaver is thus convenient to be carried about and used by a user when going out.\nB: An ultrasonic osteotome cutter bit, comprising a cutter bit head (1), a cutter bar (2), and a cutter body (3); one end of the cutter bar (2) is connected to the cutter bit head (1), and the other end of the cutter bar (2) is connected to the cutter body (3); the cutter bit head (1) has a shape of flat sheet; the top end (11) of the cutter bit head (1) is configured to be arc-shaped; one of side surfaces of the cutter bit head (1) is provided with a toothed structure (12); the top end (11) of the cutter bit head (1) is provided with a thickened portion which is increased in thickness compared with other parts of the cutter bit head (1). The ultrasonic osteotome cutter bit can converge energy produced by an ultrasonic transducer at a front part of the cutter so that the front part of the cutter has the strongest energy output to achieve the strongest working efficiency. The top end (11) of the cutter bit head (1) adopts an arc-shaped structure, so as to effectively avoid the top end from scratching tissues, thereby improving surgical safety.\nC: A multifunctional screwdriver comprises a handle (1) and a matching shaft (2), the matching shaft (2) being fixed to one end of the handle (1), wherein an end, which is away from the handle (1), of the matching shaft (2) is provided with two screwdriver bit holes, comprising a first screwdriver bit hole (21) and a second screwdriver bit hole (22); and the second screwdriver bit hole (22) is provided at the bottom of the first screwdriver bit hole (21). In the screwdriver, two screwdriver bit holes are provided on an end portion of the matching shaft, the bottom of one screwdriver bit hole is provided with the other screwdriver bit hole, thereby meeting the use of screwdriver bits with different thicknesses and different lengths, so that the matching shaft can be used in coordination with two types of screwdriver bits, thus increasing the use efficiency of the screwdriver.\nD: Disclosed is a cartridge type shaver (100), comprising a shaver head (10), a cartridge body (20) of a hollow structure for a hand to hold when shaving the face, and an elastic element (30). The shaver head comprises a first shaver head (10a) and a second shaver head (10b) replaceable with each other. The hollow structure forms an accommodation cavity (21) with an access port (231). The cartridge body is provided with a connection part (22). The shaver head is accommodated in the accommodation cavity. The connection part is selectively assembled and connected with the first shaver head or the second shaver head. The elastic element is accommodated in the accommodation cavity, and the elastic element has the tendency of constantly driving the shaver head to slide to the access port. Since the cartridge type shaver accommodates the shaver head in the cartridge body, and the shaver head accommodated in the cartridge body is pushed out by the elastic element, the shaver head can be conveniently stored in and taken out from the cartridge body, so as to facilitate being carried about and used by a user.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA handheld multifunctional machine, comprising a swing mechanism (10) and a motor and further comprising a reduction gearbox (20). One end of the reduction gearbox (20) is connected to the motor, the other end of the reduction gearbox (20) is connected to the swing mechanism (10), and the reduction gearbox (20) drives the swing mechanism (10) to operate. By adding the reduction gearbox (20) on a swing machine, the transmission ratio of a swing machine is improved, working efficiency is increased, and the processing of relatively deep holes and relatively hard materials may be achieved.\nA: Provided is a turbine fracturing apparatus, comprising a transporting device (2), a turbine engine (5), a reduction gearbox (6), a transmission mechanism (7) and a fracturing pump (8), the output end of the turbine engine (5) is connected with one end of the reduction gearbox (6), the other end of the reduction gearbox (6) is in transmission connected with the fracturing pump (8) through the transmission mechanism (7), the transportation device (2) is used for bearing the turbine engine (5), the reduction gearbox (6), the transmission mechanism (7) and the fracturing pump (8), the transportation device (2) comprises a chassis, the chassis is provided with a transporting section, a bearing section and a lapping section which are connected in sequence, when the turbine fracturing apparatus is in a working state, the bearing section can be contacted with the ground, when the turbine fracturing apparatus is in a transporting state, the bearing section does not make contact with the ground.\nB: Disclosed is a turbine fracturing semitrailer, comprising a semitrailer body (3), a turbine engine (7), a reduction gearbox (8), a transmission mechanism and a plunger pump (10), wherein the turbine engine (7), the reduction gearbox (8), the transmission mechanism and the plunger pump (10) are arranged on the semitrailer body (3); an output end of the turbine engine (7) is connected to the reduction gearbox (8); and the reduction gearbox (8) is in transmission connection with the plunger pump (10) by means of the transmission mechanism. By means of linear connection of the turbine engine (7), the reduction gearbox (8), the transmission mechanism and the plunger pump (10) in a power transmission direction, excessive transmission loss can be prevented, thereby ensuring efficient transmission performance.\nC: Disclosed is a semitrailer-mounted turbine fracturing apparatus, comprising a transportation device (200), an exhaust system, a turbine engine (500) and a plunger pump (600). The exhaust system is connected to an exhaust port of the turbine engine (500), an output end of the turbine engine (500) is directly connected to the plunger pump (600), and the transportation device (200) is used for bearing the exhaust system, the turbine engine (500) and the plunger pump (600). The plunger pump (600) comprises a power end assembly (1), a fluid end assembly (2) and a reduction gearbox assembly (3), wherein one end of the power end assembly (1) is connected to the fluid end assembly (2), and the other end of the power end assembly (1) is connected to the reduction gearbox assembly (3); and the reduction gearbox assembly (3) comprises a planetary reduction gearbox and a parallel reduction gearbox (10), and the planetary reduction gearbox and the parallel reduction gearbox (10) are used in cooperation, wherein the transmission ratio is 60:1 - 106:1.\nD: An oscillating power tool (1), comprising: a switch starting up and shutting down a motor (23); a trigger piece (25) used for triggering the switch; a transmission mechanism; an adjustment mechanism (6) used for enabling the oscillating power tool (1) to have different oscillation angles. The oscillating power tool (1) also comprises a stopper mechanism movably arranged with respect to a housing (2), the stopper mechanism having two positions. When the switch starts up the motor (23), the stopper mechanism is located in a first position, and prevents the adjustment mechanism (6) from adjusting the transmission mechanism. When the adjustment mechanism (6) adjusts the transmission mechanism, the stopper mechanism is located in a second position, and prevents the switch from starting up the motor (23). A user is not able to adjust the oscillation angle when the oscillating power tool (1) is turned on. During adjustment of the oscillation angle by the adjustment mechanism (6), i.e. when the adjustment mechanism (6) is not adjusted in place, the user is not able to turn on the oscillating power tool (1). The present technical solution increases the reliability of the oscillating power tool (1), and improves operational safety.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA power tool (10), comprising a working head (15), a motor (11), a casing (13), and a handle (12). The motor comprises a motor shaft defined with a central axis, and the motor shaft drives the working head to effect the functions of the power tool. The casing is used to contain or secure the motor. The handle is held by a user and comprises a handle housing. The handle housing is made of a first material and is provided with a receiving cavity. The power tool further comprises a handle self-vibration absorption device (16). The handle self-vibration absorption device comprises one handle self-vibration absorber. The handle self-vibration absorber is made of a second material different from the first material. The weight of the handle self-vibration absorber is less than the weight of the handle housing. The density of the handle self-vibration absorber is greater than or equal to 1 g/cm3 or is greater than the density of the handle housing. The size of the handle self-vibration absorber in the direction of the central axis is less than the size of the handle housing in the direction of the central axis, and the handle self-vibration absorber is at least partially located in the receiving cavity. The power tool has minimal vibration and is comfortable to hold.\nA: A master manipulator manipulation device for a robot. The master manipulator manipulation device comprises: a puncture assembly (110), the puncture assembly (110) comprising a handle housing, a puncture execution mechanism movably arranged on the handle housing, and a force feedback mechanism arranged at the bottom of the handle housing, the force feedback mechanism being connected to the puncture execution mechanism, and the force feedback mechanism applying resistance to the puncture assembly on the basis of puncture force feedback information; and a posture adjustment component (120) and a base (130). Further disclosed is a robot, comprising a puncture needle arranged at a terminal end of a mechanical arm, and the master manipulator manipulation device. The master manipulator manipulation device can control the needle insertion operation of the terminal end of the mechanical arm and feed back the needle insertion resistance at the terminal end of the mechanical arm.\nB: A blower (100), comprising: a motor (110); a fan (120), being driven by the motor (110) to rotate about a central axis (101); a battery pack (130), for supplying power to the motor (110); an air duct assembly (140), forming an air inlet (141) for air intake and an air outlet (142) for air outlet; and further comprising: a first handle (150), forming a first holding portion (151) for holding; and a second handle (160), forming a second holding portion (161) for holding. At least part of projection of the battery pack (130), in the radial direction of the central axis (101), on a plane (102) passing through the central axis (101) is located between the first handle (150) and the second handle (160). The blower (100) facilitates reducing the burden when a user uses the blower (100).\nC: Provided is a back-traveling self-propelled work machine, comprising: a main machine (12), comprising a travel assembly (121) and a drive motor (122) for driving the travel assembly (121); an operation switch (112c), connected to the drive motor (122); a handle apparatus (11), connected to the main machine (12); the handle apparatus comprises: an operation member (112), comprising a grip part for a user to grip; a connecting rod (111), connected to the main machine (12); a sensing module (14), used for sensing the pushing force applied to the handle apparatus (11) to drive the back-traveling self-propelled work machine; the sensing module (14) also comprises: a pressure sensor (141a), arranged between the operation member (112) and the connecting rod (111); a pressing member (146); when the grip part is subjected to a pushing force, the pressing member (146) applies a force along a preset linear direction to the pressure sensor (141a) so as to drive the pressure sensor (141a) to deform.\nD: A power tool and an operation method therefor for fast locking and releasing a working accessory. The power tool comprises a housing (2), a motor (18) disposed in the housing, a main shaft (16) driven by the motor to output rotary power, and a chuck (3) used for locking and releasing a working accessory. The chunk comprises a core body (12) connected to the main shaft, multiple claws (14) movably disposed relative to the core body, and a jacket (13) sleeved on an outer side of the core body. Driven by relative movement between the jacket and the core body, the multiple claws are folded and unfolded relative to the core body. The power tool also comprises a control apparatus. The control apparatus can operably lock a position of the jacket or the core body relative to the housing, or can control the motor to be started according to a preset rotation direction and accordingly, relative movement is generated between the jacket and the core body.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA palm ratchet tool comprises an upper cover (1), a lower cover (4), a ratchet (3), a pawl rocker shifter (5), and bits (2). The upper cover is provided with multiple through holes (11). The multiple bits are respectively disposed in the through holes. The pawl rocker shifter is disposed between the upper cover and the lower cover. The pawl rocker shifter comprises a left pawl (51), a right pawl (52), and a rocker (53) connected to the left pawl and the right pawl. The lower cover is connected to the bottoms of the bits. The top end of the rocker penetrates through the lower surface of the lower cover. The ratchet is disposed on the periphery of the upper cover and the lower cover. Ratchet gear teeth (3) are disposed on the inner surface of the ratchet. When the pawl rocker shifter approaches the ratchet, the left pawl or the right pawl meshes with the gear teeth under the action of the rocker.\nA: A double-ratchet type one-way clutch. Pawls (3) do not knock the surfaces of ratchets when the double-ratchet type one-way clutch rotates in the idling direction. The double-ratchet type one-way clutch mainly comprises: a driving ratchet (1), a driven ratchet set, a pawl set, and rolling bearings (10, 11). The pawl set comprises: a pawl base cover (5), a plurality of pawls (3), and a plurality of elastic elements (4). The driven ratchet set comprises: a driven ratchet set ratchet (2), balls (6), a ball cage (7), and a driven ratchet set supporting ring (8). When the double-ratchet type one-way clutch rotates in the idling direction, the driving ratchet (1) firstly rotates relative to the driven ratchet set ratchet (2), to make the top land of the driven ratchet set ratchet (2) and the top land of the driving ratchet (1) complementary in the axial direction; and then the driving ratchet (1) drives the driven ratchet set ratchet (2) to rotate together, so that the pawls (3) slide over the tail end of the top land of the driving ratchet (1) and then reach the top land of the driven ratchet set ratchet (2), thereby preventing the pawls (3) from knocking the driving ratchet (1).\nB: Disclosed is a ratchet tooth engagement device for a ratchet tool, comprising a ratchet wrench body (1), an assembling hole (11) penetrating through one end thereof; and a detent assembly (2), which is mounted in the assembling hole (11) of the ratchet wrench body, and comprises a ratchet base (21, 5), a ring gear disc (22, 6), an elastic element (7, 23), and a seal cover (24). A driving hole is provided in and penetrates through the ratchet base from the top to the bottom, a ring portion (212, 52) protrudes from the outer peripheral side of the ratchet base, and a tooth row (3, 9) is provided around either side or both sides of the ring portion (212, 52), the tooth row (3, 9) being engaged with row teeth (10) provided on the ring gear disc (22, 6) sheathed on the ratchet base. The seal cover (24) is sheathed on an end portion of the ratchet base (21, 5) and covers the opening of the assembling hole (11). The elastic element is sheathed to the end of the ratchet base provided with the ring gear disc (22, 6), and two ends of the elastic element (7, 23) are respectively elastically abutted against the seal cover (24) and the ring gear disc (22, 6), and are elastically pushed against the row teeth (10) of the ring gear disc to engage with the tooth row (3, 9) of the ring portion (212, 52). The device can generate a tooth skipping sound to let a user know the reversing case, and has the advantages of reduced whole weight, convenient assembly, and simple operation.\nC: A planter driven by a shaft of a walking tractor. A cam (7) with multiple embossments is sleeved on a shaft of a driving wheel shaft of the walking tractor. A ratchet wheel structure is installed on a planting wheel shaft of the planter. The ratchet wheel structure comprises an oscillating bar (2), a pawl (1), a check pawl (5), and a ratchet wheel (4) installed on the planting wheel shaft. The oscillating bar (2) is installed on the ratchet wheel (4). A return spring (3) is arranged on the oscillating bar (2). The pawl (1) is hinged on the oscillating bar (2). A driver cooperating with the embossments of the cam (7) is connected to the oscillating bar (2). The planter implements intermittent movement through cooperative use of the cam and the ratchet wheel, thereby bringing convenience to installation of a seed metering device of the planter. In addition, it is convenient for changing a plant spacing of the planter. A long-chain wheel and land wheel structure is cancelled, so that a driving manner is simple and reasonable, off-chain, stuck, and miss-seeding phenomenon and the like do not occur in a planting process, maintenance is convenient, and a fault rate is decreased, thereby improving reliability and working efficiency of the planter.\nD: A three-ratchet wheel one-way clutch, comprising a driving ratchet wheel (1, 5), pawls (2, 6), elastic components (3, 7), a pawl base (4, 8), a front driven ratchet (12, 52), and a rear driven ratchet wheel (15, 55). One or more pawls (2, 6) are arranged on the pawl base (4, 8), and the elastic components (3, 7) are connected to the pawls (2, 6). The driving ratchet wheel (1, 5), the front driven ratchet wheel (12, 52), and the rear driven ratchet wheel (15, 55) are all connected to the pawl base (4, 8), and are all able to rotate relative to the pawl base (4, 8). When the three-ratchet wheel one-way clutch rotates along an unrestricted direction, the pawls (2, 6) move on the tops of the teeth of the front driven ratchet wheel (12, 52) and the rear driven ratchet wheel (15, 55), and the tops of the teeth of the driving ratchet wheel (1, 5).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA turnover machine for overhauling bearings, comprising a rack (1). The bottom of the rack (1) is provided with wheels (2). The rack (1) is further provided with a first turnover plate (3) and a second turnover plate (4) separately. One end of the first turnover plate (3) and one end of the second turnover plate (4) are both hingedly connected to the rack (1) by means of pin shafts (5.1, 5.2). A first turnover cylinder (601) and a second turnover cylinder (6.2A) are further provided inside the rack (1). The bottom of the other end of the first turnover plate (3) is hingedly connected to an end of a piston rod in the first turnover cylinder (6.1A), and the bottom of the other end of the second turnover plate (4) is hingedly connected to an end of a piston rod in the second turnover cylinder (6.2A). The rack (1) is further provided with conveying rollers (7, 8). The back of the second turnover plate (4) is provided with a support frame (9). A clamping cylinder (10) is provided in the support frame (9). A chuck (11) is further provided in the second turnover plate (4). An end of a piston rod in the clamping cylinder (10) is fixedly connected to the back of the chuck (11), and the front of the chuck (11) is provided a claw (12) and further provided with a guide rail (18). Two sides of the back of the claw (12) are slidably connected to the guide rail (18), and the back is further provided with a lead screw (15). The middle of the back of the claw (12) is fixedly connected to a nut seat sleeved on the lead screw (15). The turnover machine has a variety of turnover angles, can meet the processing requirements of different processes of bearings, can more conveniently and stably fix the bearings, and is less likely to scratch the surfaces of the bearings.\nA: A tubular product lifting appliance, comprising a mounting base (1). Lifting rods (2) are fixedly provided on the periphery of the top of the mounting base; a telescopic air cylinder (3) is fixedly provided at the center of the top of the mounting base; an end part of a piston rod in the telescopic air cylinder penetrates through the mounting base to be fixedly connected to one end of a connecting rod (4), and the other end of the connecting rod is fixedly provided with a vacuum chuck (5); the vacuum chuck absorbs a tubular product (12); a first guide rail (6) is fixedly provided at the bottom of the mounting base; a first electric sliding block (7) is slidably provided in the first guide rail; the bottom of the first electric sliding block is fixedly connected to one end of a first L-shaped supporting plate (8), and the other end of the first L-shaped supporting plate is slidably connected to the other end of a second L-shaped supporting plate (10) by means of matching of a sliding groove (9) and a sliding rail (11). The tubular product lifting appliance is provided with the vacuum chuck, the first L-shaped supporting plate, the second L-shaped supporting plate, and a pressing block (16), thereby solving the problem that the conventional tubular product lifting appliance is low in safety and not easy to lift.\nB: A conveying device for automatic flipping of bearings. A low conveying belt (15) is provided between a pair of low conveying wheels (14); a high conveying belt (17) is provided between a pair of high conveying wheels (16); a flipping unit (20) comprises upper rotating support plates (22) rotationally provided on the end surfaces, away from each other, of a pair of center vertical plates (11); vertically-disposed clamping support plates (221) are formed at the lower end of a left end surface and the upper end of a right end surface of each upper rotating support plate (22), respectively; vertical moving bases (241) are vertically and movably provided at the ends, away from the upper rotating support plate (22), of the clamping support plates (221); bearing clamping blocks (26) are respectively provided on the end surfaces, close to each other, of a pair of vertical moving bases (241) in a front-back moving mode; an upper connecting plate (111) is formed between the upper ends of the central vertical plates (11); the upper connecting plate (111) is located on the upper side of the high conveying belt (17), and a pushing stop plate (271) is provided on a right end surface of the upper connecting plate (111) in a left-right moving mode.\nC: Disclosed is a multi-roller flat plate cylindrical embossing machine, comprising: a rack (1), wherein longitudinal sliding grooves (2) are symmetrically arranged at upper ends of two sides of the rack (1); two sides of a lower end of a mobile frame (3) are respectively arranged in the longitudinal sliding grooves (2) in a sliding manner by means of sliding blocks (4); a first rack (5) is arranged at an upper end of one sliding block (4); a first drive electric motor (6) is arranged in the rack (1); a first gear (8) fitting the first rack (5) is arranged on an electric motor shaft (7) of the first drive electric motor (6); first air cylinders (9) are symmetrically arranged at two sides of an upper end of the mobile frame (3); bearing blocks (11) are respectively arranged on piston rods (10) of the first air cylinders (9); two ends of a cylinder (12) are respectively arranged on the bearing blocks (11) in a rotating manner by means of spindles (13); a second air cylinder (14) is arranged on the mobile frame (3) at one side of one spindle (13); an ejector pin (16) is arranged on a piston rod (15) of the second air cylinder (14); and one spindle (13) is provided with an ejector pin hole (17) fitting the ejector pin (16).\nD: A pipe feeding mechanism for a paint spraying pipe labeling machine comprises a machine frame, and a bin (1), a pipe pushing mechanism (2), a pipe detection electric eye (3), a pipe clamping mechanism (4), and a rotating mechanism (6), which are disposed on the machine frame. A pipe conveying groove (9) penetrating the bin (1) and extending rightwards is provided at the bottom of the bin (1). The pipe pushing mechanism (2) comprises a push pin (14), a push pin guide seat (16), and a pipe pushing cylinder (17). The push pin (14) is slidably installed on a linear guide rail (15) via a push pin sliding seat (13), the telescopic end of the pipe pushing cylinder (17) is connected to the push pin sliding seat (13), and the pipe detection electric eye (3) is disposed on the right of the pipe conveying groove (9). The pipe clamping mechanism (4) comprises a pipe clamping head (25) and a clamping pneumatic finger (26), the pipe clamping head (25) being located on the right side of the pipe conveying groove (9). The rotating mechanism (6) comprises a rotating shaft (27), a rotating fixing seat (28), and a rotating cylinder (29). The rotating shaft (27) is installed in the rotating fixing seat (28), the rear end of the rotating shaft is connected to the clamping pneumatic finger (26), the tail of the rotating cylinder (29) is rotatably hinged to the machine frame, and the head of the rotating cylinder is hinged to the rotating shaft (27). The pipe feeding mechanism can automatically complete a one-by-one pipe feeding operation, the labor intensity of workers is reduced, and the working efficiency is high.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fixing apparatus (100), comprising a base (10), at least one fixing mechanism (20), and at least one limiting mechanism (30). The base (10) comprises a base plate (11) and a fixing plate (13). Each fixing mechanism (20) comprises a fixing drive member (21), a moving member (22), and an abutting member (24); the fixing drive member (21) drives the moving member (22) to move so as to drive the abutting member (24) to abut against a workpiece (200). Each limiting mechanism (30) comprises a fixing member (31), a stopping member (33), and at least two limiting assemblies (32); each limiting assembly (32) comprises a limiting member (321), a limiting spring member (322), a snapping member (323), a snapping spring member (324), a control member (325), and a control spring member (326); the snapping member (323) comprises a push-pull part (3231) and a snapping part (3232). If the corresponding limiting member (321) is pressed to move, the snapping member (323) causes, under the action of the elastic force of the snapping spring member (324), the snapping part (3232) to be accommodated in a groove (3213) of the limiting member (321) to stop the snapping member (323) from moving, such that the snapping member (323) is accommodated in the fixing member (31). If the corresponding control member (325) is pressed to move, the push-pull part (3231) disengages from a receiving groove (3253) of the control member (325) to drive the snapping part (3232) to disengage from the groove (3213) of the limiting member (321), and the limiting member (321) moves to protrude out of the fixing plate (13) under the action of the snapping spring member (324) so as to stop the stopping member (33).\nA: A nozzle fixing assembly (10) and an oral irrigator. The nozzle fixing assembly (10) is used for installing a nozzle (100). The nozzle (100) is provided with a limiting groove (130). The nozzle fixing assembly (10) comprises a locking unit (200) and a supporting base (300); the locking unit (200) comprises a housing (210) and an elastic element (230), wherein the housing (210) is provided with a through slot (211) which is arranged through two opposite sides of the housing (210), and wherein the elastic element (230) is connected to the housing (210); and the supporting base (300) comprises an elastic fastening (310) and a locking sleeve (320). The locking sleeve (320) is provided with a channel (321), a groove (322) is provided in the periphery of the locking sleeve (320), and the channel (321) is in communication with the groove (322). The nozzle (100) passes through the through slot (211) and the channel (321) and presses the elastic element (230); therefore, the limiting groove (130) is exposed in the groove (322), and the elastic fastening (310) is clamped in the limiting groove (130) and the groove (322). The nozzle (100) presses the elastic element (230) to adjust the assembling gap between the nozzle (100) and the supporting base (300), so that the limiting groove (130) is exposed in the groove (322), namely, the limiting groove (130) is aligned with the opening of the groove (322); at this moment, the elastic fastening (310) can be clamped in the limiting groove (130) and the groove (322); and therefore, the nozzle (100) and the supporting base (300) are assembled in place and stably installed.\nB: A lamp comprising a lamp body (100) and an elastic mounting member (200), wherein the lamp body (100) comprises a lamp main body (110) and a limiting member (120), the limiting member (120) is connected to the lamp main body (110), a limiting space (130) is defined by the limiting member (120) and the lamp main body (110), a mounting opening is provided in one end of the limiting space (130), the limiting member (120) comprises a matching notch (123), the matching notch (123) is formed by extending towards the interior of the limiting member (120) from the mounting opening, a limiting groove (111) being in communication with the limiting space (130) is concavely provided in the lamp main body (110), the elastic mounting member (200) comprises a clamping part (210) and a mounting part (220), the clamping part (210) comprises a base body (211) and an elastic fastener (212), the elastic fastener (212) is elastically connected to the base body (211), one end of the base body (211) is bent outwards and extends to form the mounting part (220), the mounting part (220) is configured to be fixed to a mounting foundation (300), the clamping part (210) extends into the limiting space (130) from the mounting opening, the mounting part (220) extends into the matching notch (123), the base body (211) is in limiting fit with the lamp body (100) in the direction perpendicular to the extending direction of the clamping part (210), and the elastic fastener (212) is in limiting fit with the limiting groove (111) so as to limit the clamping part (210) being separated from the limiting space (130) from the mounting opening. The lamp is low in assembly difficulty and small in radial size.\nC: A mounting mechanism, comprising a first part (1) and a second part (2) connected to the first part (1). The first part (1) comprises a connecting piece (11) and a limiting component (12). The limiting component (12) comprises a limiting housing (121), two grabbing arms (122) and a first return piece (123). The limiting housing (121) is provided with an opening at one end away from the connecting piece (11), and the two grabbing arms (122) are both hinged within the limiting housing (121). Each grabbing arm (122) is provided with a clamping part (1221) at one end close to the opening. The second part (2) comprises a head (21) and a connecting part (22) that extends from the head (21). The outer diameter of the connecting part (22) is smaller than that of the head (21), so that a step is formed at the joint between the head (21) and the connecting part (22). During mounting, the head (21) is operated to move from the opening to the limiting housing (121) through the space between the two clamping parts (1221), and the head (21) pushes the two clamping parts (1221) open so as to pass through, so that the first return piece (123) generates a driving force. When the head (21) passes through the clamping parts (1221), the first return piece (123) drives the two clamping parts (1221) to rotate and reset in opposite directions so as to clamp the head (21).\nD: A positioning device (100), comprising a support frame (10), a rotating mechanism (20), a positioning mechanism (30), and a variable spacing mechanism (40). The rotating mechanism (20) is disposed on the support frame (10) and rotates the positioning mechanism (30). The positioning mechanism (30) comprises a base plate (31), a fixed tray (32), and at least one movable tray (34). The fixed tray (32) is fixedly disposed on the base plate (31). The at least one movable tray (34) is slidably disposed on the base plate (31) in sequence and is near the fixed tray (32). The variable distance mechanism (40) comprises a linear driving member (41), a sliding plate (43), and at least one connecting member (42). The linear driving member (41) is fixedly disposed on the base plate (31). The sliding plate (43) is disposed on the linear driving member (41) and is connected to the movable tray (34). The at least one connecting member (42) slidably connects the fixed tray (32) and all of the movable trays (34) in sequence. The linear driving member (41) moves the sliding plate (43) to move the movable tray (34) thus adjusting spacing between products.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA workbench for fitness equipment accessory machining, the workbench comprising a base (1) and a housing (2). The bottom of the base (1) is fixed to the housing (2). A workbench body (16) is arranged in the housing (2). The bottom surface of the workbench body (16) is fixedly mounted on a lifting seat (6). A height adjusting assembly for adjusting the height of the lifting seat (6) is arranged on the lifting seat (6). Two filtering cavities (8) are symmetrically provided in the housing (2). Filtering assemblies (22) for filtering air are symmetrically arranged in each of the filtering cavities (8). Two sides of the workbench body (16) are connected to inner walls of the housing (2) in a sliding manner. Dust is filtered by means of the filtering assemblies (22), such that cleanliness in the housing (2) is guaranteed, and the problem that an existing device cannot collect and treat dust generated during an accessory machining process such that dust accumulates on a machining table is solved; and by means of the arrangement of the height adjusting assembly, the height of the workbench body (16) is adjusted, thereby facilitating machining of accessories of different types, and improving the machining efficiency.\nA: A workbench for assembling a small mechanical apparatus. The workbench comprises an assembling table (1), a lifting mechanism and a support base (2). The assembling table (1) is mounted at the top end of the support base (2); a tray (11) is fixedly connected to the middle of the bottom end of the assembling table (1); and the lifting mechanism is mounted between the assembling table (1) and the support base (2) and used for adjusting the distance between the assembling table (1) and the support base (2). The lifting mechanism comprises a servo motor (53), a weighing support (3) and a lifting column (5), wherein the weighing support (3) is fixedly connected to the top end of the support base (2); the servo motor (53) is mounted in the weighing support (3); the top end of the servo motor (53) is rotationally connected to a threaded column (52); the bottom end of the tray (11) is fixedly connected to the lifting column (5); a bottom surface of the lifting column (5) is provided with a mounting cavity (55) extending upwards; the top end of the threaded column (52) extends into the mounting cavity (55); the threaded column (52) is screwed to the mounting cavity (55) by means of a thread; and a limiting sleeve (51) is sleeved on the outer side of the lifting column (5). By means of a servo motor being additionally arranged in a weighing support and by means of providing a simple thread lifting mechanism, the height of an assembling table can be adjusted; and the workbench is simple and convenient to maintain, and the reducing of the maintenance cost of the workbench is facilitated.\nB: A machining quality testing apparatus for mechanical parts, pertaining to the technical field of machining, and solving the problem in which existing devices lack protection for a testing apparatus and cause the testing apparatus to be exposed. The machining quality testing apparatus for mechanical parts comprises a support frame (1) and a base (2). A lower portion of the support frame (1) is fixed to the base (2), and an accommodation cavity (3) is provided within the base (2). An accommodation assembly is provided within the accommodation cavity (3). A barrier plate (4) is provided above the base (2). The base (2) and the barrier plate (4) are fixedly connected by a bolt. The accommodation assembly comprises a drive assembly, a testing apparatus installation base (14), and a vertically movable assembly (15). The drive assembly and the vertically movable assembly (15) are fixedly connected. The invention achieves protection of the testing apparatus and enables convenient accommodation and retrieval thereof, thereby preventing damage to the testing apparatus, and accordingly improving testing accuracy. In addition, the invention achieves retaining and position limiting of mechanical parts, thereby preventing mechanical parts from loosening or falling off during a testing process, and improving testing efficiency.\nC: A positioning fixture for machining of a housing of a sewing machine head, comprising a base (1) and an upright column (11); the upright column (11) is arranged above the base (1), a mounting base (13) is fixedly mounted in the middle of the upright column (11), clamping assemblies (14) for clamping a housing are symmetrically arranged on two sides of the mounting base (13), the mounting base (13) is fixedly connected to the clamping assemblies (14), and a position adjustment assembly for adjusting the height of the upright column (11) is arranged between the upright column (11) and the base (1). The positioning fixture achieves the adjustment of the height of the clamping assemblies by means of the provision of the position adjustment assembly, facilitating clamping of housings in different environments, increasing the machining efficiency of housings, and achieving the clamping and limiting of housings of different shapes by means of the provision of a swing assembly.\nD: An automatic material carrying claw mechanism, relating to the technical field of material carrying mechanisms, solving the problem of being inconvenient to adjust the height of the existing mechanical claw device, and comprising a support frame (1) and a base (22). The support frame (1) is fixedly mounted on the upper part of the base (22). A horizontal transverse plate (2) is fixedly mounted at the top of the support frame (1). The support frame (1) is provided with a lifting/lowering base (7). A clipping mechanism (15) for carrying a material is mounted on the lifting/lowering base (7). A height adjustment component used for adjusting the height of the clipping mechanism is also mounted on the horizontal transverse plate (2). The mechanism is provided with the height adjustment component for adjusting the height of the clipping mechanism, which reduces the carrying difficulty of an electronic component and improves the carrying efficiency; at the same time, a limiting component is arranged for limiting the lifting/lowering base, which ensures the accuracy of electronic component carrying and prevents the electronic component from falling off.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA mechanical device for obtaining a sheet-plate-shaped article, comprising a base (600) on which a suction cup (640), a driver (610), a first clamping jaw (620-1) and a second clamping jaw (620-2) are mounted. The first clamping jaw (620-1) comprises a first pivoting end (631-1) capable of pivoting along a first pivoting shaft (661-1) and a first clamping piece serving as a first free end (630-1), the second clamping jaw (620-2) comprises a second pivoting end (631-2) capable of pivoting along a second pivoting shaft (661-2) and a second clamping piece serving as a second free end (630-2), and the first clamping piece and the second clamping piece are of a long-strip-shaped flat plate structure and extend in the directions parallel to the pivoting shafts. The mechanical device for obtaining a sheet-plate-shaped article can lift sheet-plate-shaped articles by means of the clamping jaws, reduces damage to the articles resulted from sorting and the risk of falling off of the articles, and guarantees smooth running of sorting.\nA: Disclosed are a hemostatic clip and an auxiliary system. The hemostatic clip comprises a first clip piece (110), a second clip piece (120), a tightening tube (140), a middle clip piece (150), a middle shaft assembly (160), a traction assembly (170), a control handle (180) and at least two separation members (190), wherein the traction assembly (170) is respectively connected to the control handle (180) and the middle shaft assembly (160); the middle shaft assembly (160) is connected to the tightening tube (140); the proximal end of the first clip piece (110) and the proximal end of the second clip piece (120) are connected to the traction assembly (170); the proximal end of the middle clip piece (150) penetrates the tightening tube (140) to be fixedly connected to the middle shaft assembly (160); the first clip piece (110) and the second clip piece (120) are arranged on two sides of the middle clip piece (150); the first clip piece (110) and the middle clip piece (150) form a first clip body; the second clip piece (120) and the middle clip piece (150) form a second clip body; the control handle (180) is used for opening or closing the first clip body and the second clip body corresponding to the first clip piece (110) and/or the second clip piece (120); and the separation members (190) are arranged in a tube cavity of the tightening tube (140), and are located between the first clip piece (110) and the middle clip piece (150) and between the second clip piece (120) and the middle clip piece (150), such that the instrument fault risk caused by the interference of the first clip piece (110), the second clip piece (120) and the middle clip piece (150) is reduced.\nB: A powerful plier comprising a first jaw (1), a second jaw (2), a first handle (3), and a second handle (4). The first jaw (1) is mounted onto the first handle (3). The second jaw (2) is pivotally mounted onto the first handle (3) and is pivotally mounted onto the second handle (4) via a first connecting point (21). The powerful plier also comprises a single connecting rod (11), a sliding mechanism (10), and a lock mechanism (8). One extremity of the connecting rod (11) is pivotally mounted onto the second handle (4) via a second connecting point (16), while the other extremity is pivotally mounted onto the sliding mechanism (10) via a third connecting point (17). The sliding mechanism (10) and the lock mechanism (8) are slidably mounted onto the first handle (3). The single connecting rod (11) increases the supporting strength of the connecting rod. Arrangement of multiple lock pieces (81) increases the efficiency of locking. Also, processing costs for the lock pieces are reduced. The lock mechanism (8) and the sliding mechanism (10) run through a guide rod (6), thus simplifying an assembly process.\nC: A sorting system for sheet or plate-like articles, comprising: a supply device (110) capable of receiving and transmitting a plurality of sheet or plate-like articles overlapped together and having different orientations; an image processing device (120) capable of receiving a plurality of sheet or plate-like articles and obtaining grade information of a sheet or target plate-like article according to image information of the target sheet or plate-like article among the plurality of sheet or plate-like articles; an encoder capable of calculating motion information of the target sheet or plate-like article; and a sorting device (130) capable of sorting the target sheet or plate-like article according to the grade information and the motion information of the target sheet or plate-like article. The system for sorting sheet or plate-like articles achieves automation of sheet or plate-like article sorting, and increases the sorting efficiency.\nD: A mechanical gripping jaw and a gripping bar mechanism, comprising a mounting seat (100); a drive assembly (200), which is provided on the mounting seat, and is provided with a transmission member (210); a first gripping assembly (300), which is rotatably provided on the mounting seat, is in drive connection with the transmission member, and is provided with a first gripping head (310); and a second gripping assembly (400), which is rotatably provided on the mounting seat, is in drive connection with the transmission member, and is provided with a second gripping head (410); when the first gripping head and the second gripping head are able to rotate relative to and approach each other, the first gripping head cooperating with the second gripping head to form a gripping station. As the forces applied to the product are not opposite radial gripping forces applied by a traditional mechanical gripping arm, the gripping forces applied to the product are relatively small and also smoother, so that the invention can realize secure gripping of fragile products, and eliminate potential risk of said fragile products being broken, and the connection structure above is simple and is secure for operation, and the costs for manufacture, usage and maintenance are low.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA hydraulically powered joint for a robot, comprising a hydraulic plug-in rotary direct drive valve (1) and a blade swing cylinder (2), a valve body mounting cavity (22) being prefabricated at one end of a center part of a central rotary shaft (21) of the blade swing cylinder (2), the shape of the valve body mounting cavity (22) being formed according to the shape of an insertion portion of the hydraulic plug-in rotary direct drive valve (1), the hydraulic plug-in rotary direct drive valve (1) being fitted in the valve body mounting cavity (22) in an inserted manner, and a drive motor (11) of the hydraulic plug-in rotary direct drive valve (1) being exposed out of the central rotary shaft (21). The hydraulically powered joint for a robot can satisfy the current robot development needs, and also can broaden the application range of the robot.\nA: A driving joint (1). The driving joint (1) comprises a motor (10), a planetary gear reducer (20) integrated in the motor (10), and encoders (30, 40), a brake (50), driving cards (60, 70) and control cards (80, 90) integrated on the motor (10). The planetary gear reducer (20) is mounted on a motor shaft (101) of the motor (10). The motor shaft (101) comprises an input rear end (106) and an output front end (107). The input rear end (106) and the output front end (107) of the motor shaft (101) are each provided with an encoder (30, 40). The brake (50) is mounted on the input rear end (106) of the motor shaft (101). An input end face (11) and an output end face (12) of the driving joint (1) are each provided with a driving card (60, 70) and a control card (80, 90). By applying the planetary gear reducer to driving joint transmission, and by means of the integrated design of a high-performance torque motor, a servo driving controller, a brake, a torque sensor and other components, the driving joint has the advantages of high efficiency, high load to dead weight ratio, support for reverse driving, high response speed, compliant force control, and real-time bus communication. Also provided is a robot.\nB: Disclosed is an adjustable rotation damper, comprising a body (1), a spindle (11) embedded in the body (1) to rotate, a first piston (2) sleeved on the periphery of the spindle (11) and driving the spindle (11) to move in the axial direction of the spindle (11), and a second piston (21) sleeved on the periphery of the first piston (2) and elastically connected to the body (1), wherein the first piston (2) separates a pressure chamber (3) from an oil storage chamber (31), and the second piston (21) is arranged in a buffer chamber (32) that is in communication with the oil storage chamber (31). The adjustable rotation damper further comprises adjusting mechanisms (4) symmetrically arranged on two sides of the spindle (11), wherein hydraulic oil in the pressure chamber (3) flows towards an adjusting mechanism (a) on one side and to the oil storage chamber (31) to form a flow channel, and the hydraulic oil in the oil storage chamber (31) flows towards an adjusting mechanism (b) on the other side and to the pressure chamber (3) to form another flow channel. The adjustable rotation damper is applied to the ankle part of an artificial limb, and can be properly adjusted according to the motion state and a change in stride of a user.\nC: A hybrid rotary guiding device, comprising: a rotating shaft that rotationally drives a tool head (B), the rotating shaft including an upper shaft part (1), a lower shaft part (2) and a steerable part (3); the upper shaft part (1) and the lower shaft part (2) have a spacing distance in the direction of the rotating shaft, and the upper shaft part (1) and the lower shaft part (2) are connected by means of the steerable part in a steerable manner (3); at least three first hydraulic mechanisms installed on the upper shaft part (1); and at least three second hydraulic mechanisms installed on the lower shaft part (2); the second hydraulic mechanisms are adapted to drive a push member (9) to push against a borehole wall to guide the tool head (B); the first hydraulic mechanisms and the second hydraulic mechanisms are connected such that the first hydraulic mechanisms can drive the second hydraulic mechanisms to drive the push member (9). The guiding device combines the advantages of the directional guiding and the pushing guiding, thus, the influence of formation properties on a build-up rate is eliminated to a great extent, a higher build-up rate can be provided, and the demand for energy consumption is greatly reduced.\nD: Disclosed is a threaded insertion type rotary direct-drive electro-hydraulic servo valve with a harmonic speed reducer. A direct-current brushless servo motor (1) and a harmonic speed reducer (3) are used as an electromechanical conversion part of the threaded insertion type rotary direct-drive electro-hydraulic servo valve, so that the requirement for the starting torque of the servo motor is reduced, the size of the conversion part is reduced, and the stability of the servo valve at the zero position is guaranteed. The servo valve comprises the direct-current brushless servo motor (1), a valve body assembly (2) and the harmonic speed reducer (3), wherein the valve body assembly (2) comprises a valve core (4), a valve sleeve (5), an upper end cover assembly (6) and a lower end cover assembly (7); an output shaft (33) of the direct-current brushless servo motor (1) is fixedly connected to an input shaft (31) of the harmonic speed reducer, and an output shaft (32) of the harmonic speed reducer is connected to an outwardly-protruding part of a central shaft (41) of the valve core (4); and an outer thread (61) is provided on an outer circumferential face of the upper end cover assembly (6), and the outer thread is used for installation and connection with an integrated valve block.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA robot natural control method based on an electromyographic signal and an error electroencephalographic potential. The method mainly comprises the following steps: an experimenter executing four natural actions according to a prompt; collecting an electromyographic signal and IMU data, performing pre-processing, feature extraction and classifier classification on the data, and controlling, according to a classification result, a UR5 mechanical arm such that same executes a corresponding action on a target; and triggering and starting the acquisition of an electroencephalographic signal while controlling the UR5 mechanical arm, performing pre-processing, feature extraction and classifier classification on data, detecting whether an error potential is generated, if an error potential is generated, stopping the current action of the UR5 mechanical arm, otherwise, no interference being carried out. Compared with a traditional electromyographic signal control method, in the present method, electromyographic identification of a natural action is provided, an electromyographic signal and an IMU signal are also fused for data processing and classification identification, and an error correction mechanism during a robot control process is then improved by means of the identification of an error electroencephalographic potential, thereby improving the control efficiency and accuracy of a robot.\nA: The present application provides a wearable device-based mobile robot control system and a control method. The flow of a first control method comprises: a pose of an operator's gesture — a pose of a virtual gesture model — an end pose of a virtual robotic arm ― an end pose of a multi-degree-of-freedom robotic arm; by establishing the driving relation between the pose of an operator's gesture and the end pose of a multi-degree-of-freedom robotic arm, continuous control of the end pose of the multi-degree-of-freedom robotic arm is achieved. In a second method, during control, different hands of an operator are used for controlling different action parts of a slave robot, and separate control by the left and right hands enables the slave robot to more accurately execute a command action. In a third method, the configuration of a connection hand form enables an operator not to depend on a physical controller. Compared with discrete control of robot actions implemented only by using a gesture type, the present application implements incremental continuous accurate control of the end position of a detection system.\nB: A CNN-LSTM deep learning model-based driver fatigue identification method comprising the following steps: acquiring EEG signals from a subject under test during a driving simulation; issuing an operation instruction randomly during the driving simulation, and dividing, according to a response time of the test subject for completing the operation instruction, the EEG signals into fatigue data and non-fatigue data; performing band-pass filtering and mean removal preprocessing on the EEG signals, and extracting N minutes of the required fatigue EEG signal data and non-fatigue EEG signal data ; performing independent component analysis on the EEG signal data so as to remove interference signals therefrom; establishing a CNN-LSTM model, and configuring a network parameter of the CNN-LSTM model; inputting the interference-free EEG signal data into a CNN network and performing feature extraction; and reconstructing feature extraction data, and inputting the same into an LSTM network and performing classification. Experiment results indicate an improved accuracy of 96.3 ± 3.1% (grand mean ± population standard deviation).\nC: A natural action electroencephalographic recognition method based on source location and a brain network. The method comprises: (1) performing multi-channel electroencephalographic measurement on a natural action; (2) pre-processing a collected EEG signal, and extracting MRCP, a θ wave, an α wave, a β wave and a γ wave; (3) determining a lead field matrix of the signal, solving an initial value solution of a source by using an L1 regularized constraint, and performing iterative solving by using a successive overrelaxation method, so as to obtain a source location result; (4) taking sources as nodes, and calculating a PLV between each pair of sources time point by time point by using a short-time sliding window, so as to construct a brain network; and (5) calculating a network adjacency matrix and five brain network indexes time point by time point, sending these features to a classifier for training and testing, and performing a statistical test on the brain network indexes. By means of the method, a traditional source location method is improved by means of combining a T-wMNE algorithm with a successive overrelaxation method, and a brain network is constructed by means of taking sources as nodes, thereby facilitating the improvement of the electroencephalographic decoding precision of a natural action and the revealing of a nerve operation mechanism of a human body.\nD: A motor imagery electroencephalogram signal processing method, a device, and a storage medium. The method comprises: inputting a source MI electroencephalogram signal of a source domain and a target MI electroencephalogram signal of a target domain into an initial feature extraction model separately, and obtaining a first source MI feature used to represent the source MI electroencephalogram signal and a first target MI feature used to represent the target MI electroencephalogram signal (S202); inputting the first source MI feature into an initial classification model, and obtaining a first classification result output by the initial classification model, wherein the first classification result is used to represent a desired execution action of the source MI electroencephalogram signal (S204); and if a first known action corresponding to the source MI electroencephalogram signal is inconsistent with the desired execution action of the source MI electroencephalogram signal as represented by the first classification result, or if a similarity level between a feature distribution of the first source MI feature and a feature distribution of the first target MI feature is less than a first pre-determined threshold, adjusting a model parameter of the initial feature extraction model and/or a model parameter of the initial classification model, and obtaining a target feature extraction model and a target classification model (S206).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA shredding-slicing device having random combinations of shredder blades and slicer blades and capable of continuous thickness adjustment comprises a base (1) which is provided with a slice thickness adjusting sheet (2), a slice thickness adjusting screw (3), shredder blades (4), and slicer blades (5). The slice thickness adjusting screw (3) is screwed to the slice thickness adjusting sheet (2), and the slice thickness adjusting sheet (2) can be finely adjusted by screwing the slice thickness adjusting screw (3). A slot I (6) for inserting a slicer blade (5) is provided on the base (1), and a slot II (7) for inserting a shredder blade (4) is provided on the slice thickness adjusting sheet (2). The device has a simple and reliable structure, and by providing slots where a slicer blade (5) and a shredder blade (4) can be inserted in or drawn out, blades can be replaced quickly, so that much more patterns can be cut and it is much easier for a consumer to use the device. The device is further provided with a thickness adjusting screw (3), and by screwing the thickness adjusting screw (3), the thickness of a vegetable slice can be controlled. The mechanism is easy to operate and has abundant functions, the complexity of blade machining is reduced, and the manufacturing costs are reduced.\nA: Provided is a study desk that is adjustable according to a child's growth. The desk comprises a table top (1), an adjusting leg (2), an adjusting sleeve (3), an anti-slip foot (4), an adjusting hole (5) and an adjusting bolt (6), wherein an adjustable placement plate (9) is arranged above the table top (1), and the adjustable placement plate (9) is supported on the table top (1) through a support rod (17). The adjustable placement plate (9) comprises a horizontal plate (11) in a horizontal direction and an adjusting plate (10) rotatably connected through a hinge (12), wherein a fixed support plate (13) of a strip-shaped structure is fixed to an end, facing the horizontal plate (11), of a lower side face of the adjusting plate (10); the fixed support plate (13) extends towards the outer side of the adjusting plate (10), and an extension length of the fixed support plate is the thickness of the horizontal plate (11); and the lower side of the horizontal plate (11) is provided with a horizontal sliding groove (15) perpendicular to the fixed support plate (13), and a horizontal movable support plate (14) is slidably connected in the sliding groove (15).\nB: An automatically controlled, adjustable-angle apparatus for animal brain for experimentation, comprising a base (1), left and right side plates (2) being arranged on the left and right sides of the base (1). An angle adjustment bottom plate (3) is arranged on the base (1) and between the left and right side plates (2), the upper surface of the angle adjustment bottom plate (3) taking the form of an inclined surface at a compensatory angle required for a brain tissue sample section, one end of the angle adjustment bottom plate (3) being movably connected to the base (1) by means of a linking joint, and the other end of the angle adjustment plate (3) being a free end. A forward- and backward-moving wedge-shaped supporting block (4) is arranged below the free end, a plurality of pairs of blade motion guide slots (5) that guide blades to move vertically are arranged in the left and right side plates (2), and blades for cutting a brain tissue sample are installed in the blade motion guide slots (5). The wedge-shaped support block (4) is fixedly connected to a ball screw nut (6) on one side, the ball screw nut (6) is mated with a ball screw (7), one end of the ball screw (7) is connected to an electric driving mechanism (8), and an angle measurement apparatus (9) for measuring the angle of the adjustable-angle bottom plate (3) is installed on the left and right side plates (2). Angle adjustment is implemented by means of an automatic control mechanism, and adjustment is convenient and accurate.\nC: A food cutter, comprising a base (1), a support platform (2), a rotational moving assembly (3), a cutting mechanism (4), and a driving mechanism (5). The cutting mechanism (4) comprises a bracket (41) and blades provided on the bracket (41), the blades comprising a slicing blade (42) and a julienning blade working in concert with the slicing blade (42) for julienning; the julienning blade comprises a julienning blade body (43) which has at least three sides (431), at least two notches (432) for exposing the edges of the blade being provided on the surface of each side (431) at an interval, the intervals between the notches (432) on the surfaces of the sides (431) being different; and the bracket (41) is further provided with an adjustment mechanism for enabling the julienning blade to rotate along its own axis. Compared with the prior art, the food cutter overcomes the defect of frequently changing julienning blades in order to cut a product to be processed into julienne strips having different thicknesses. By enabling, using a rotational adjustment mechanism, the julienning blade to rotate along its own axis, so as to cause different sides (431) to work in concert with the slicing blade (42), julienne strips having different thicknesses can be produced.\nD: Provided is a pulley (10) capable of being installed in an upright manner and an inverted manner. The pulley (10) is provided with a housing (3) and wheel components. The pulley (10) can realize two installation states, an installation state in which the pulley is visible and an installation state in which the pulley is embedded, and the pulley is provided with a height adjustment mechanism capable of adjusting the height of the pulley (10) in the two installation states. In this way, it is possible to select visible pulley installation or embedded pulley installation when a single pulley is utilized. In addition, an adjustment screw (1) and an adjustment nut (2) matching each other serve as the height adjustment mechanism, such that a screwdriver is not needed when the adjustment nut (2) is rotated for adjustment, thereby preventing the frequently occurring problem of the height of the pulley being unable to be adjusted by means of a screwdriver.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA front-back moving-type precise four-column discharging machine, comprising a rack (1). Connecting blocks (4) are provided on the left and right sides of the rack by means of two guide columns (2) and a punching oil cylinder (3). The two connecting blocks are respectively provided with punching pressure plate moving guide rails (5). A punching pressure plate (6) is slidably provided between the two connecting blocks by means of the punching pressure plate moving guide rails. Support bosses (61) are respectively provided on two sides of the punching pressure plate. The two sides of the punching pressure plate are supported on the punching pressure plate moving guide rails by means of the support bosses. The edges of the two support bosses are respectively positioned on the axes of the two guide columns. The two connecting blocks are respectively provided with support planes (41) matching the support bosses. Oil storage tanks (7) matching the punching oil cylinder are respectively provided on two sides of the rack.\nA: Disclosed is a precise four-column cutting device composed of a workbench (1), a hydraulic oil tank (2), an electric motor (3), an oil cylinder (4), an upper pressing plate (5), a left trapezoid connection block (6), a right trapezoid connection block (7), a connection rod component (8), a balance shaft (9) and an oil pump (10), wherein the workbench (1) is a frame of a rectangular structure, and the frame is provided with a plurality of rib plates (11) to enhance the strength of the frame; the hydraulic oil tank (2) is arranged at the bottom of the workbench (1), and the electric motor (3) and the oil pump (10) are connected and fixed to a side vertical face of the workbench (1); and the electric motor (3) drives the oil pump (10) to drive the oil cylinder (4) to control the upward and downward movement of the upper pressing plate (5), and blanking synchronization is ensured by means of the connection rod component (8) and the balance shaft (9). The device is simple to operate and operates stably, blanking synchronization is ensured by means of the connection rod component (8) and the balance shaft (9), and four corners are balanced, thereby greatly improving the production efficiency.\nB: Disclosed is an environmentally friendly oil pipe arrangement device, comprising: a support bottom plate (1), and five sumps (2) arranged on the support bottom plate (1) and connected to one another. A support block (3) is arranged at each side of a lower end of each sump (2) on the support bottom plate (1), a hydraulic cylinder (4) is arranged under the two support blocks (3), and a piston rod (5) of the hydraulic cylinder (4) is connected to the support blocks (3). A screw rod (6) is fixedly arranged at each side of an upper end of each sump (2), the screw rod (6) is provided with a thread insert (7) cooperating with the screw rod, adjusting handles (8) are arranged at two sides of the thread insert (7), a semicircular support bracket (9) is arranged at an upper end of the thread insert (7), an oil discharge pipe (10) is longitudinally arranged on the semicircular support bracket (9), and several oil feed pipes (11) are transversely arranged on the oil discharge pipe (10).\nC: A flame laminating machine having high production efficiency comprises: a machine frame (1); a sponge roll unwinding device (2) and a plurality of sponge guiding rollers (21) arranged at an upper portion of the machine frame (1); and a middle laminating roller (3) arranged at a middle portion of the machine frame (1), and rotatably disposed in a middle bearing base (5) via a middle shaft (4). The middle bearing base (5) is fixedly disposed at the machine frame (1). An upper laminating roller (6) operating together with the middle laminating roller (3) is arranged at an upper portion of the middle laminating roller (3). The upper laminating roller (6) is rotatably disposed at an upper bearing base (8) via an upper shaft (7). The upper bearing base (8) is fixedly disposed at an upper support (9). Upper sliding tracks (10) are disposed at two sides of the machine frame (1). Two ends of the upper support (9) are slidably disposed at the upper sliding tracks (10) via upper sliding blocks (11). An upper screw cover (12) is disposed at an upper end of the upper support (9). An upper gearmotor (13) is disposed at an upper end of the machine frame (1). An upper screw (15) matching with the upper screw cover (12) is disposed at an electrical motor shaft (14) of the upper gearmotor (13).\nD: Disclosed is a hub die-casting mould, which comprises a lower die (2), a side die and an upper die (4) which are assembled to form a hub casting cavity. The lower die (2) is arranged on a lower template (1). The side die is formed by butt jointing four arc-shaped parts (3) which are slidingly connected to the lower template (1). The four arc-shaped parts (3) are separated into two groups which are respectively located on the left and right sides of the lower die (2). An included angle between 3º - 10º is arranged between sliding traces of two arc-shaped parts (3) of each group and the diameters in left and right directions of the lower die (2). The hub die-casting mould further comprises two connecting blocks (8) respectively arranged at the outsides of the two groups of the arc-shaped parts. Connecting holes (9) are arranged on the connecting blocks (8). The outer walls of the two arc-shaped parts (3) of each group are respectively provided with pulling hooks (7). The pulling hooks (7) are slidingly connected to the connecting holes (9). By pulling two arc-shaped parts of one group by two connecting blocks, only two oil cylinders are required to drive the two connecting blocks, and the oil cylinder energy consumption in the pouring process is reduced by half. The cavity pressure is provided by means of a die locking sleeve. The limitation of the oil cylinder specification is overcome, and the manufacturing cost of the hub is reduced.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA wood milling machine comprises a compression device (10), the compression device (10) comprising an upper roller (11) and a lower roller (12) rotating in opposing directions, there being a gap between the upper roller (11) and the lower roller (12). Compression of wood between the upper roller (11) and the lower roller (12) yields wood fiber (80c) without destroying the structure thereof. The performance of synthetic wood made from processed fiber is approximately equivalent to that of real wood. A system for the production of synthetic wood comprising the milling machine and a process utilizing said system requires no addition of formaldehyde to produce synthetic wood, reduces the cost thereof, and is energy efficient and environmentally friendly.\nA: An artificial board, comprising a surface layer, and a core layer (32). The surface layer comprises an upper surface layer (31), and a lower surface layer (33); the surface layer contains an adhesive accounting for 3-8 wt% of the surface layer, additives accounting for 0-10 wt% of the surface layer, and the balance of straw shavings; the percentage of straw shavings incapable of passing through a 12-mesh sieve in the total weight of the straw shavings of the surface layer is highest. The core layer (32) contains an adhesive accounting for 2-8 wt% of the core layer, additives accounting for 0-10 wt% of the core layer, and the balance of wooden shavings; the percentage of wooden shavings capable of passing through a 40-mesh sieve and incapable of passing through a 60-mesh sieve in the wooden shavings of the core layer is highest. According to the artificial board, crop straws are mixed with wood for manufacturing the artificial board, so that the problem of wood resource shortage in China is effectively solved; meanwhile, part of wood raw material is added, so that the raw material structure of the artificial board can be effectively improved, thereby improving the quality of the artificial board.\nB: Provided is a device used for compacting a softwood into a hardwood, comprising a compaction frame (2), a heating system, a pressing assembly, and a hot pressing plate (1). The pressing assembly is arranged on the upper part of the compaction frame (2), the hot pressing plate (1) is arranged on the lower part of the compaction frame (2), and the pressing assembly moves downward and applies pressure to the hot pressing plate (1). The hot pressing plate (1) is a thermally conductive material, and the heating system is connected to the hot pressing plate (1) and transfers heat to same. The hot pressing plate (1) comprises a plate body (10) and a press board (11). A rectangular groove (12) used for placing wood is arranged on the upper surface of the plate body (10), and the side wall of the groove (12) is provided with a tube hole (15) used for removing cooling water. The press board (11) is arranged above the plate body (10), and the press board (11) can move vertically by means of a sliding mechanism arranged on the compaction frame (2); during use, the press board (11) presses downward from the plate body (10) and engages, such that the groove (12) forms a sealed space. The device has a simple structure, is low-cost, has good compaction performance, and is highly efficient to produce; the compacted wood material is robust, high-strength, and highly resistant to wear, and has a high endurance.\nC: Disclosed is a method for producing a density distribution-controllable compressed and densified solid wood panel, comprising: adjusting the water content of each layer in the thickness direction of a solid wood panel to form a dry area and a wet area in the thickness direction of the interior of the solid wood panel, wherein a yield stress difference between the dry area and the wet area is 0.2 MPa or more; adjusting the position distribution of the dry area and the wet area; and then performing compression using a hot press to form a high-density compressed layer in the wet area of the solid wood panel, so as to obtain a density distribution-controllable compressed and densified solid wood panel. The present invention can perform precise compression on a solid wood panel, such that the position distribution of a densified layer and an uncompressed layer of the wood panel is precise and controllable. In addition, the present invention features excellent mechanical properties and size stability, thereby further improving the quality of a compressed wood panel.\nD: A wood strip cutter comprises an upper combing roller (1) and a lower combing roller (2). The upper combing roller comprises an upper rotating shaft (5) and an upper cutter (8) disposed on the upper rotating shaft. The lower combing roller comprises a lower rotating shaft (6) and a lower cutter (9) disposed on the lower rotating shaft. The upper cutter and the lower cutter are respectively a concave cutter and convex cutter respectively formed by multiple concave blades and multiple convex blades, the concave blades of the upper cutter and the convex blades of the lower cutter being correspondingly meshed with each other. The cutters having multiple meshed concave and convex blades distributed in intervals enable continuous cutting of wood sheets and other plant straws into wood strips, guarantees production continuity, and enhances cutter durability. Additionally, the cutters can be replaced in a timely manner in case of local abrasions or other damages. Different combinations can produce wood strips of different widths according to needs, thereby enabling versatility and durability. The invention is suitable for production, and effectively guarantees the continuity and uniformity of the wood strip making and paving of wood wool structural boards.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a numerically controlled veneer lathe without a chucking shaft, the veneer lathe comprising a machine base (1), a veneer cutting knife device (2), a single-roller device (3), a double-roller device (4) and a PLC variable-frequency control system (5), wherein a plate pressure scale device (6) is arranged between the veneer cutting knife device (2) and the single-roller device (3); a fixing frame (7) is arranged at an upper end of the machine base (1) at two ends of the veneer cutting knife device (2); the fixing frame (7) is provided with a knife rest body rotating sleeve, a beveled track and a single-roller feed transmission device; an inner side of the fixing frame (7) is provided with a pressure scale slideway (11); a front portion of the veneer cutting knife device (2) is connected to the knife rest body rotating sleeve (12), and a rear portion of the veneer cutting knife device (2) is hinged to a power transmission shaft (13); two ends of the single-roller device (3) are respectively connected to the beveled track (17); and a single-roller support (16) is connected to the single-roller feed transmission device.\nA: A rotary cutting machine using automatic stepless shifting of a cam to change rotary cutting veneer thickness. A double-row roller assembly, a double-row roller feeding assembly, and a cutter body base (5) are installed on a rack. The double-row roller feeding assembly is used for driving the double-row roller assembly to move towards or away from the cutter body base (5). A support arm (8) is hinged by means of a support shaft (7) to the cutter body base (5) at an end near the double-row roller assembly. A cam assembly is provided on the cutter body base (5) at an end away from the double-row roller assembly. The cam assembly drives the support arm (8) to rotate. A single-row roller press assembly is provided on the support arm (8). A locking adjustment assembly adjusts the position of the single-row roller press assembly on the support arm (8). A rotary cutter (6) is mounted on the upper portion of the end of the cutter body base (5) near the double-row roller assembly. The double-row roller assembly, the double-row roller feeding assembly, the single-row roller press assembly and the cam assembly are all connected to a controller. The present device achieves intelligent, precise, and automatic change of any rotary cutting thickness, and the cutter height and cutter gap are locked by one-time benchmark locking, thereby saving labor and time.\nB: A turning center feed transmission device, mainly composed of a ball screw a (1), a brake pedal (2), a cutter frame (3), a carriage (4), a synchronous toothed belt a (5), an AC servo motor a (6), a synchronous toothed belt b (7), an AC servo motor b (8) and a ball screw b (9); the carriage (4) being provided on the lower rear side of the brake pedal (2), the brake pedal (2) being provided with the ball screw a (1), the cutter frame (3) being provided on the left side of the brake pedal (2), the AC servo motor a (6) being provided on the upper right side of the brake pedal (2), the ball screw a (1) and the AC servo motor a (6) being connected by means of the synchronous toothed belt a (5), the ball screw b (9) being connected to the lower portion of the brake pedal (2), the AC servo motor b (8) being provided on the lower left side of the ball screw b (9), and the AC servo motor b (8) and the ball screw b (9) being connected by means of the synchronous toothed belt b (7). Said transmission device has the advantages of high precision, efficiency, practicability, simplified mechanical structure, being easy to manufacture, relatively low cost, being easy to operate and user-friendly, and good manufacturability.\nC: An oil pumping machine with a gear reciprocating on a rack comprises a machine seat (1), a machine body (2), overhead traveling cranes (3, 4), a steel wire rope (5), a motor (6), a speed reducer (8), a gear (9), and a rack (11). A rack seat (12) is fixed on an inner side of a front portion of the machine body (2). The gear rack (11) is fixed on the gear seat (12). Semicircle rails (13) are arranged at an upper portion and a lower portion of the rack seat (12), and a middle rail is an interval rail (14). A running rail for a reciprocating device (15) is arranged at two sides of an inner side of the machine body (2). Horizontal strengthening wheels (17) and longitudinal strengthening wheels (18) are mounted at four corners of the reciprocating device (15) and are connected to a pendulous device (16) through swing rings (20). The speed reducer (8) is mounted at a bottom portion of the pendulous device (16). The motor (6) and an angle transmission case (7) are mounted at a two-layer platform of the pendulous device (16). Chain wheels are mounted on shafts of the angle transmission case (7) and the speed reducer (8). A cable box (22) is mounted at a rear portion in the machine body (2). A cable door (23) is arranged in the middle of the cable box (22). The overhead traveling cranes (3, 4) are mounted at an upper portion of the machine body (2). The steel wire rope (5) is connected to a weight box (24) through the rear portion of the overhead traveling cranes (3, 4). The weight box (24) is arranged outside the machine body (2). The present invention is novel in structure, reliable in running, and capable of reducing the cost of the equipment.\nD: A feed transmission device for a turning center, mainly consisting of a ball screw a (1), a brake pedal (2), a knife rest (3), a carriage (4), a synchronous cog belt a (5), an AC servo motor a (6), a synchronous cog belt b (7), an AC servo motor b (8), and a ball screw b (9). The carriage (4) is disposed at the rear underside of the brake pedal (2); the ball screw a (1) is disposed on the brake pedal (2); the knife rest (3) is disposed at the left side of the brake pedal (2); the AC servo motor a (6) is disposed above the right side of the brake pedal (2); the ball screw a (1) and the AC servo motor a (6) are connected by means of the synchronous cog belt a (5); the ball screw b (9) is connected under the brake pedal (2); the AC servo motor b (8) is disposed at the left underside of the ball screw b (9); and the AC servo motor b (8) is connected to the ball screw b (9) by means of the synchronous cog belt b (7). The transmission device has the advantages of precision, high efficiency, practical use, greatly simplified mechanical structure, more easy manufacturing and relatively low cost, and of being easy in operation, man-beneficial, and good in processing manufacturability.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to the field of polyurethane production apparatus. Disclosed is a polyurethane foaming apparatus, comprising an inner barrel, an outer barrel, a material transportation device, an inner barrel stirring device, an outer barrel stirring device, a first motor, a second motor, and a controller. The inner barrel is disposed on the material transportation device. An inner cavity of the inner barrel is communicated with the material transportation device. The material transportation device is disposed in the outer barrel. A discharging device is disposed on the outer barrel. The inner barrel stirring device comprises a first rotating shaft and a first stirring blade. The outer barrel stirring device comprises a second rotating shaft and a second stirring blade. The material transportation device comprises a material transportation pipe, a spiral rod, and a third motor. The discharging device comprises a baffle, a lifting plate, a recessed, and a hydraulic cylinder. The recess is fixedly disposed at the bottom of the outer barrel. The hydraulic cylinder is fixedly disposed on the inner bottom surface of the recess. An output end of the hydraulic cylinder is connected to the lifting plate. Telescopic guide columns are disposed between the lifting plate and a base. The upper surface of the lifting plate is connected to the baffle by means of upright columns. The present invention has the advantages of high material mixing uniformity, high finished product quality, convenient use, and small space occupation.\nA: The present invention discloses a polyurethane foaming device, which comprises a tank, a stirring device is arranged inside the tank, the tank is composed of a shell and a reaction tank arranged inside the shell, a vacuum cavity is formed between the shell and the reaction tank, a heating tube is arranged inside the cavity, both an inlet and an outlet of the heating tube extend to the outside of the tank and are connected with a heating device, the side wall of the reaction tank is provided with a temperature sensor, and the heating device is electrically connected with a temperature sensor. The present invention arranges the temperature sensor and the heating device, when raw materials are added into the tank, the temperature sensor detects the temperature in real time and controls the heating device to heat, at the same time, the stirring device is activated to ensure that the raw materials in the reaction tank are heated evenly, when it is heated to a suitable temperature, the heating is stopped, since there is a vacuum between the shell of the tank and the reaction tank, it has a good insulation effect, can ensure the foaming temperature of the raw materials well, and ensure the quality and production efficiency of the product.\nB: A multifunctional foliar fertilizer mixing apparatus, comprising a mixing apparatus (1) and a supporting apparatus (2). The mixing apparatus (1) comprises feeding portions (11), a reaction portion (12), and a discharging part (13); there are two feeding portions (11) which are respectively disposed on both sides of the reaction portion (12) and communicated with the reaction portion (12); the discharging portion (13) is disposed at the bottom of the reaction portion (12) and is communicated with the reaction portion (12); each feeding portion (11) comprises a feeding structure; the top of the feeding structure has an opening; a detachable sealing cover (3) is provided at the opening; the discharging portion (13) is provided with a discharging valve (14); the reaction portion (12) comprises a housing and an inner cavity; a motor (4) is provided at the top middle position of the housing; the output shaft of the motor (4) extends through the housing and has a rotating shaft (41) welded at the bottom; the outer wall of the rotating shaft (41) is provided with first mixing blades (42); a second mixing blade (43) is provided between the first mixing blades (42); a third mixing blade (44) is provided below the first mixing blades (42); a supporting rod (5) is provided on the supporting apparatus (2); a lighting device (6) and a monitoring device (7) are provided on the top of the supporting rod (5).\nC: Disclosed is a dual-loading type mixing and stirring device for a negative electrode material of a lithium battery, the device comprising a loading device and a mixing and stirring device. The loading device comprises a storage box (1), a first motor (4) and loading cylinders (5), wherein two loading cylinders (5) are provided and are fixedly disposed on a support plate (6) and connected to a mixing and stirring box (11); the first motor (4) is fixedly disposed on the support plate (6) and on the left sides of the loading cylinders (5); and the storage box (1) is disposed on a feeding pipe (2). The mixing and stirring device comprises the mixing and stirring box (11), a stirring box (12), a speed reduction box (17) and a second motor (18), wherein the mixing and stirring box (11) is welded onto a side part of the support plate (6); the speed reduction box (17) is fixedly disposed on a cover plate (14); the second motor (18) is fixedly disposed on the speed reduction box (17); and the stirring box (12) is disposed on a stirring shaft (13).\nD: A mixing and stirring kettle for manufacturing a lithium battery, comprising a base (1), a kettle body (4), and a stirring device (3). The base (1) is provided at the bottom of the kettle body (4) and consists of a bottom plate (25), a support column (26), a support block (27), a support rod (28), and a stop block (29); the base (1) is disposed on the lower part of the kettle body (4); a top cover (6) is provided on the upper part of the kettle body (4); a stirring device (3) is provided in the kettle body (4); a first conveying pipe (7) is provided on the left part of the top cover (6); a second conveying pipe (12) is provided on the right part of the top cover; a first filler bin (9) is provided on the top part of the first conveying pipe (7); a first inclined pipe (5) is provided on the bottom part of the first conveying pipe (7); a second filler bin (10) is provided on the top part of the second conveying pipe (12); a second inclined pipe (13) is provided on the bottom part of the second conveying pipe (12); the stirring device (3) consists of a stirring wheel (16), a rotary shaft (17), a driven wheel (18), a hollow pipe (19), a V belt (20), a through hole (21), a support frame (22), a motor (23), and a drive wheel (24). According to the present solution, the first inclined pipe (5) and the second inclined pipe (13) inject materials into the stirring wheel (16); and the motor (23) drives, by means of the V belt (20), the stirring wheel (16) to rotate, so that the materials can be mixed, and the mixing efficiency and quality are improved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stamping-resistant integrated hydraulic machine, comprising a base (1), a square supporting column (2), a rotary table (3), a lifting stamping device and die (5), a hydraulic oil cylinder (6), and a control panel (10) which are arranged in sequence from bottom to top. The hydraulic oil cylinder is disposed on the top of the lifting stamping device and die (5) and goes up and down along with the lifting stamping device and die. At least two guiding columns (4) are disposed in the position between the lifting stamping device and die and the base and close to the square supporting column. The square supporting column is disposed at one side of the base (1). The rotary table is driven by a rotary shaft (7) and a motor (8) to rotate above the base (1). An air rubber spring (9) is further connected between the rotary table and the base. A compression spring (14) is further sleeved in the air rubber spring. Both ends of the air rubber spring and both ends of the compression spring are respectively fixed to the bottom of the rotary table and the top of the base. The stamping-resistant integrated hydraulic machine is convenient to operate and has a good vertical lifting degree.\nA: A removal and cleanup apparatus for a vertical support structure, which comprises a movement mechanism (10), dust removal apparatuses (30), a hydraulic lift machine group, a self-balancing system, and an information processing platform, wherein the movement mechanism (10) comprises a base (11), a plurality of pairs of roller wheels (12) arranged on bottom parts of the base (11), and a plurality of extendable support legs (14) arranged on two sides of the base (11); the dust removal apparatuses (30) are arranged in intervals at top parts of the movement mechanism (10), and said apparatuses comprise cylindrical main bodies, clamping mechanisms, and cutting machines (60), the cylindrical main bodies comprise integrally connected dust removal covers and support platforms (31), the clamping mechanisms and the cutting machines (60) are arranged in inner cavities of the cylindrical main bodies and are fixedly connected to the support platforms (31), a vertical support structure (1) to be removed is supported by the support platforms (31) and external parts thereof are covered by the dust removal covers, the clamping mechanisms clamp the vertical support structure (1), and the cutting machines (60) cut the vertical support structure (1); the hydraulic lift machine group is arranged between the movement mechanism (10) and the the dust removal apparatuses (30), and said assembly comprises a first hydraulic lift machine (21) and a second hydraulic lift machine (22) arranged vertically and in intervals along an axis of the base (11), a bottom part of the first hydraulic lift machine (21) is fixedly connected to the base (11), a bottom part of the second hydraulic lift machine (22) articulates with the base (11), and top parts of the first hydraulic lift machine (21) and the second hydraulic lift machine (22) articulate with the support platforms (31) of the dust removal apparatuses (30); the self-balancing system comprises a pressure sensor (82) and an angle sensor (81) arranged on a support platform (31) as well as pressure regulating apparatuses (83) which are respectively connected to a hydraulic cylinder of the first hydraulic lift machine (21) and the second hydraulic lift machine (22); and the information processing platform respectively establishes a signal connection with the movement mechanism (10), the self-balancing system, and the clamping mechanisms and the cutting machines (60) of the dust removal apparatuses (30).\nB: A dual-purpose hydraulic machine facilitating switching gravity bearing. The dual-purpose hydraulic machine comprises an upper cross beam (4), a pressing plate mounting sliding block (6), and a top plate mounting sliding block (8). A base (9) is provided on the dual-purpose hydraulic machine facilitating switching gravity bearing; stand columns (7) are symmetrically provided on the upper portion in the base (9), the stand columns (7) are fixed to the upper portion in the base (9); the top plate mounting sliding block (8) is provided on a push shaft of a top cylinder (10) in the stand columns (7); the center of the bottom of the top plate mounting sliding block (8) is fixedly connected to the push shaft of the top cylinder (10); the upper cross beam (4) is provided at the tops of the stand columns (7), a main motor (17) is provided in the center of the top of the upper cross beam (4), and a push shaft of the main motor (17) is mounted downwards; an electromagnetic mechanism (20) is provided outside the main motor (17), downward pressing pressure of the hydraulic machine can be adjusted by switching the electromagnetic mechanism (20).\nC: A deep hole device for machining of an electronic lock, comprising a base (1) and a workbench (2); the workbench (2) is arranged on the base (1), moving bases (3) are symmetrically arranged at two sides of the workbench (2), and a plurality of fixing rods (4) are arranged at the side of each moving base (3) close to the workbench (2); a compression spring (5) is fixedly connected to one end of each fixing rod (4), a hinge member (6) is fixedly connected to the other end of the compression spring (5), and an anti-slip rubber base (7) is hinged to the hinge member (6); the fixing rod (4) is arranged on the moving base (3) in a penetrating manner, and a rotating rod (8) is hinged to a joint between the fixing rod and the moving base; a lifting/lowering rod (9) is arranged inside the moving base (3), a lifting/lowering device (10) is arranged at a lower position of the lifting/lowering rod (9), a dust removal tube (22) is arranged at one side above the workbench (2), and the dust removal tube (22) is in communication with a dust removal box body (23). The deep hole device improves the effect of fixing an electronic lock and prevents deviation of the electronic lock during machining, the deviation affecting the effect and efficiency of machining an inductor of the electronic lock; and the deep hole device can make adjustments according to electronic locks of different specifications, and has very good applicability.\nD: Disclosed is a sliding rail punching locking plate blocking point processing apparatus, comprising a sliding rail positioning tooling (2) arranged on a support member of a base (1), wherein the sliding rail positioning tooling (2) has a U-shaped press-fit support column (4); a punching mechanism comprising a guiding column (5) longitudinally arranged on the base (1) and a mounting rack (6) movably arranged on the guiding column (5) is arranged above the sliding rail positioning tooling (2); the mounting rack (6) is connected to an output end of a punching cylinder (7), and a fixing plate (8) extending longitudinally is arranged on the mounting rack (6); a gas spring (9) is arranged movably in the longitudinal direction on the fixing plate (8) ; an output end of the gas spring (9) is mounted with an n-shaped limiting bracket (11); a pair of swing arms (12) are arranged on the limiting bracket (11); upper ends of the swing arms (12) are rotatably connected to the middle of the limiting bracket (11), a press-fit head (13) is mounted on an inner side of a lower end of the swing arm (12), an outlet (14) for the press-fit head is correspondingly provided in the limiting bracket (11), one end of a connecting rod (15) is rotatably connected to an outer side of the lower end of the swing arm (12), and the other end of the connecting rod (15) is rotatably connected to the fixing plate (8); and a pressing rod (16) is longitudinally arranged on the limiting bracket (11), and the pressing rod (16) is located between the pair of swing arms (12).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a fault identification and state monitoring system and method for a multi-channel piezoelectric 3D printing spray head. The system comprises a spray head driving circuit, a multi-channel gating circuit, a piezoelectric signal acquisition circuit and a monitoring unit. The spray head driving circuit is used for providing a driving signal to enable a piezoelectric spray head to perform spraying; the multi-channel gating circuit is used for providing a multi-channel in-turn gating signal to realize in-turn monitoring of a plurality of spray holes of the piezoelectric spray head; the piezoelectric signal acquisition circuit uses a self-sensing detection method to acquire a residual vibration signal in a runner cavity of the piezoelectric spray head; and the monitoring unit comprises a driving voltage monitoring module, a liquid viscosity monitoring module, an ink supply pressure monitoring module and a liquid drop spray speed calculation module, and is used for monitoring the working state of the piezoelectric spray head. The system and method can effectively identify the type and cause of a fault, improve monitoring accuracy and facilitate a user in taking effective measures; no external sensor is required; in-turn monitoring reduces the hardware cost; and monitoring can be performed during a working process of a spray head, and the monitoring flexibility is improved.\nA: A bearing status online monitoring system based on optical fiber vibration sensing, comprising: a laser generating device (1) for emitting a pulsed laser to a circulator (3); an optical scanning device (4) for time-divisionally inputting the pulsed laser coming from the circulator (3) into a plurality of vibration sensing optical cables (5), each vibration sensing optical cable (5) of the plurality of vibration sensing optical cables (5) being used for sensing the vibration of one or more bearings; scattered light signals which are transmitted from the plurality of vibration sensing optical cables (5) and carry bearing vibration information being inputted into a photodetector (8) via the optical scanning device (4) and the circulator (3), the photodetector (8) converting the scattered light signals into electric signals and transmitting the electric signals into a signal acquiring and processing module (9), the signal acquiring and processing module (9) being used for processing the electric signals and determining, according to the electric signals, the operating status of the bearings. The plurality of vibration sensing optical cables (5) is formed in parallel. The invention can reduce the length of each vibration sensing optical cable, improve the sensitivity of the monitoring system, and reduce the cost of the monitoring system. Further provided is a bearing status online monitoring method based on optical fiber vibration sensing.\nB: A pressure touch control display apparatus and a control method therefor. The pressure touch control display apparatus comprises a backlight module (10), a piezoelectric component (20) and a monitoring circuit, wherein the piezoelectric component (20) is arranged on a reflection sheet (12) of the backlight module (10), and the piezoelectric component (20) is deformed under the action of a pressure and generates an electrical signal corresponding to the pressure; and the monitoring circuit is electrically connected to the piezoelectric component (20), and the monitoring circuit is used for monitoring the electrical signal generated by the piezoelectric component (20). In the pressure touch control display apparatus, it is not necessary to pre-apply a reference electrical signal when the piezoelectric component (20) is working, and thus during working the piezoelectric component (20) is not interfered with by the other electrical signals in the pressure touch control display apparatus and external electrical signals, such that the pressure touch control display apparatus has a relatively high anti-interference capability, and the sensitivity and accuracy of the pressure touch control display apparatus are improved.\nC: A status monitoring and fault diagnosis system for concrete pumping equipment, comprising a boom sensor assembly (210) installed on the boom for monitoring the operation status of the boom and acquiring a signal, a chassis sensor assembly (220) installed on a chassis (101) for monitoring the operation status of the chassis (101) and acquiring a signal, a hydraulic system sensor assembly (230) installed on a hydraulic system for monitoring the operation status of the hydraulic system and acquiring a signal, a status monitoring unit (310) for analyzing and processing the signals acquired by each sensor assembly so as to monitor the condition of the concrete pumping equipment on line, and a fault diagnosis unit (320) connected with the status monitoring unit (310) for predicting and diagnosing the fault of the concrete pumping equipment. The status monitoring and fault diagnosis system for concrete pumping equipment can comprehensively monitor the operation status and diagnose the fault of the boom, the chassis and the hydraulic system, thus improving the overall performance of the concrete pumping equipment.\nD: Disclosed are an ink-jet control circuit for a 3D printing device, and a 3D printing device. The ink-jet control circuit comprises a positioning module, a control module, a row counting module, a storage module, and a data carrying module, wherein the positioning module is used for acquiring position data of a nozzle; the control module is used for generating a row synchronization signal and an ink-jet enabling signal according to the position data of the nozzle; the row counting module is used for generating a row counting value according to the row synchronization signal and the ink-jet enabling signal; the storage module is used for storing printing data; and the data carrying module is used for generating non-printing data, and is used for sending the printing data or the non-printing data to the nozzle according to the row counting value, so as to control the nozzle to jet ink droplets. The control module of the present application only needs to process the printing data rather than the non-printing data, such that the amount of data processed by the control module is effectively reduced, reducing the load of the control module and thus improving data processing efficiency of the control module.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an ultraviolet lamp disinfection water purification reactor and a fabrication method therefor, the reactor comprising a reactor cavity, which is provided with a water inlet and a water outlet; an ultraviolet disinfection lamp is disposed within the reactor cavity; a rectifying device is disposed within the reactor cavity, and rectifying through holes are distributed on the rectifying device. By using a design in which a rectifying device cooperates with a ultraviolet disinfection lamp, water flow has a rectifying effect after passing through rectifying through holes of the rectifying device, such that turbulence or eddy currents may be effectively reduced, and a better purification and disinfection effect can be achieved by means of ultraviolet disinfection.\nA: Provided is a disposable bioreactor comprising a reactor chamber and a connected pipe. The connected pipe is arranged on the top of the reactor chamber. The reactor chamber is composed of more than two pieces of chamber walls connected via fusion or adhesion, and comprises an intersection part, and at least one hollow arm part communicated with the connected pipe via the intersection part. The tail end of said hollow arm part is sealed. Driven by a rocking table, liquid in the reactor chamber can flow along a long shaft of the disposable bioreactor, so as to produce wave and turbulent mix, and mixing and mass transfer efficiency is increased greatly.\nB: Disclosed is a flow-through sterilization device, comprising a housing having a water inlet and a water outlet, and a sterilization cylinder disposed inside the housing. An LED lamp assembly is provided at the bottom of the sterilization cylinder; the LED lamp assembly and the sterilization cylinder enclose a sterilization cavity; a reflector is provided at the top of the sterilization cavity; a water flow passage is formed between the housing and the sterilization cylinder; and the water inlet, the water flow passage, the sterilization cavity, and the water outlet are connected in sequence. The deep ultraviolet light emitted by the LED lamp assembly is incident into the sterilization cavity to sterilize the water flowing through the sterilization cavity; and the reflector reflect the deep ultraviolet light in the sterilization cavity, so that the deep ultraviolet light can repeatedly act on the water flow to further enhance the sterilization effect on the water flow. In addition, the reflector disposed on the top of the sterilization cavity can reflect the deep ultraviolet light downward into the sterilization cavity, such that dead corners in the sterilization cavity can be effectively sterilized.\nC: A water tank and a dishwasher. The water tank comprises: a water tank chamber (b901); a salt feeding port (b10) arranged on a side wall of the water tank chamber (b901), and located at the downstream of a water tank water inlet (b7); and a flow rectification structure arranged on an inner wall of the water tank chamber (b901), and comprising at least one rib, the rib being located on a flowing path of salt and located at the upstream of a water tank water outlet (b8). Water flow bypasses the flow rectification structure and forms at least one bypassing path. Salt or a salt solution is fed into the water tank chamber (b901) by means of the salt feeding port (b10), and then is performed an electrolysis reaction to prepare disinfecting water. While the disinfecting water is used to disinfect tableware in the dishwasher, a pipeline through which the disinfecting water flows is also disinfected and sterilized. A certain time is required for dissolving salt in water, and the flow rectification structure is used to intercept salt blocks on the path where salt flows to the water outlet, so that the salt blocks are impacted and dispersed or the time for the salt to reach the water outlet is prolonged.\nD: An ultraviolet disinfection lamp, comprising a lamp holder (1) and a lampshade (2) connected to each other, and a plurality of ultraviolet lamp tubes (3) provided in the lampshade (2). The end of the lamp holder (1) connected to the lampshade (2) is provided with a protrusion (4). A communication hole (10) communicating with the interior of the lamp holder (1) is provided in the protrusion (4). A plurality of positioning holes (5) are arranged on the protrusion (4) around the circumference of the communication hole (10). The end of the lampshade (2) connected to the lamp holder (1) is provided with a bottom cover (6) covering the protrusion (4). The bottom cover (6) is provided with a first through hole (12) correspondingly communicating the communication hole (10) and a plurality of penetrating holes (7) correspondingly communicating with the positioning holes (5). The ultraviolet lamp tubes (3) extend into the lamp holder (1) through the first through hole (12) and the communication hole (10). The bottom cover (6) is provided with a plurality of support rods (8) arranged around the ultraviolet lamp tubes (3). One end of the support rods (8) extends into the positioning holes (5) through the penetrating holes (7) and is connected to the protrusion (4), and the other end is connected to a top cover (9) covering the tops of the ultraviolet lamp tubes (3). The end of the top cover (9) facing the ultraviolet lamp tubes (3) is provided with a protective ring (11) disposed around the ultraviolet lamp tubes (3). According to the ultraviolet disinfection lamp, the lampshade is easy to install, the bulb replacement is very convenient, and the overall structure of the lamp is simple.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA photosensitive grain-free printing plate, consisting of a plate base, a hydrophilic layer and a photosensitive layer, with the hydrophilic layer and the photosensitive layer being successively coated on the plate base. A hydrophilic coating is obtained by coating a composition of nano-scale and/or micron-scale particles or a composition containing nano-scale and/or micron-scale particles on the surface of the plate base. The hydrophilic coating thus obtained has an appropriate roughness, which imparts to the surface of the plate base hydrophilic and water-retaining properties. The presence of hydrophilic particles in nano scale and/or micron scale in the hydrophilic layer does not only ensure that the printing plate meets the requirements of ink absorption but also improves the abrasive resistance of the plate base surface, and furthermore maintains good cohesive forces between the hydrophilic layer and the printing base and between the hydrophilic layer and the photosensitive layer. In comparison with the existing photosensitive plates, the contamination caused by the waste acid and waste base liquids produced by electrolysis and oxidation of aluminium plates is avoided and the water and electricity consumption is reduced.\nA: An antistatic nanofiber nonwoven material and manufacturing method. The nonwoven material comprises: a first hydrophilic layer (1), an antistatic composite layer (2), and a second hydrophilic (3) provided from top to bottom in that order. The antistatic composite layer (2) is assembled by alternatively stacking an antistatic nanofiber layer and a conductive nanofiber layer on each other. The first hydrophilic layer (1) and the second hydrophilic layer (3) are manufactured using a hydrophilic polypropylene nanofiber material prepared using a hydrophilized polypropylene, thereby improving an antistatic performance of the nonwoven material. The material has simple processing techniques and a low cost, is not affected by environmental humidity, and has excellent hydrophilic properties.\nB: A nonwoven nanofiber antibacterial material and a method for preparing same. The nonwoven material comprises at least two nanofiber antibacterial layers (1). A hydrophilic nanofiber layer (2) is provided between two adjacent nanofiber antibacterial layers (1). Nanofibers (4) of the nanofiber antibacterial layers (1) are arranged crosswise in the three-dimensional space so as to form holes having nanoparticles and nanofiber clusters. Antibacterial nano-silver particles (31) and antibacterial nano-zinc oxide particles (32) are distributed in the holes. The nano-silver particles (31) and the antibacterial nano-zinc oxide particles (32) are distributed in the holes having nanoparticles and nanofiber clusters, and the antibacterial particles are not easy to fall off, which function together to enable the nonwoven nanofiber antibacterial material to have a lasting antibacterial property. Moreover, the hydrophilic nanofiber layer (2) provides the nonwoven nanofiber antibacterial material with a good hydrophilic property. The nonwoven nanofiber antibacterial material prepared with the preparation method of the present invention can be broadly applied to the fields of daily necessities, medical care, hygienic products for infants, children and adults and the like.\nC: Disclosed is a heat-sensitive processless planographic printing plate material containing a thermosensitive protection layer. The planographic printing plate material sequentially comprises a supporting body, a hydrophilic layer, a heat-sensitive layer and a thermosensitive protection layer from the bottom up. The thermosensitive protection layer therein can not only isolate oxygen and protect the heat-sensitive layer from oxygen inhibition, but can also sense heat and allow a polymerization reaction to take place. Thus the binding force between same and the next layer is improved, so that the precision of printing plate images is high, the development performance is good, and the pressrun is high.\nD: A light aerogel material. A preparation raw material of the material comprises a polymer material and clay. The light aerogel material is a light strong absorption material prepared by mixing the clay and the hydrophilic polymer material with other possibly added inorganic raw materials, performing high speed stirring by using water as a medium to become into the viscous state, and processing by means of a freeze drying method. The light aerogel material prepared in the present invention has nano-scale and micron-scale pore structures so that the material has a high water-absorbing capacity and water absorption. The light aerogel material can be used in a litter box. The density of the light aerogel material is controllable so as to meet requirements of different adsorption occasions such as a litter box. Meanwhile, the material can not only be crushed to form an irregular structure having a rough surface, but also be frozen forming into different special shapes by a die.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stamp comprises: a stamp case (10), the lower end of which is provided with an accommodation cavity (100); a stamp handle (20), provided on the upper side of the stamp case (10); a columnar core (30), running through the stamp case (10), the upper end of the columnar core (30) being connected to the stamp handle (20); a spring (40), provided between the stamp handle (20) and the stamp case (10); a clamping plate (50), formed at the lower end of the columnar core (30) and accommodated inside the accommodation cavity (100) of the stamp case (10); a stamp bucket (60) for storing ink, clamped to the clamping plate (50) and accommodated inside the accommodation cavity (100). A stamping surface is provided at the lower end of the stamp bucket (60), and ink absorbing cotton is disposed inside the stamp bucket. When the stamp bucket (60) is at an upper stopping point, the clamping plate (50) is spaced from the upper stopping point by a distance; and therefore, the clamping plate (50) can be driven upwards by continuously pushing the stamp handle (20) upwards, so that the clamping plate (50) is separated from the stamp bucket (60).\nA: A sealing-type radio-frequency electronic seal, comprising a backing paper layer (1). A conductive coating (2) is provided on the backing paper layer. A plurality of hollows (3) are formed in the middle of the conductive coating, and an antenna resonant cavity (4) is formed by an opening at one end of one of the hollows, the antenna resonant cavity being connected to a chip connection strap assembly (5) at the opening. The electronic seal facilitates recognition, has a simple manufacturing process and a low cost, and is easy to popularize, and the seal is thin, thereby having no influence on the aesthetic feeling of calligraphy and painting artworks and having the characteristic of preventing it from being used twice.\nB: A method, apparatus, and device for recognizing seal text, and a computer-readable storage medium, the method comprising: acquiring a seal detection result of an object to be processed, the seal detection result comprising a seal detection frame and angle information of the seal detection frame (101); on the basis of the seal detection result, obtaining a seal image in a forward seal detection frame (S102); acquiring the outline of at least one text line in the seal image (103), and cutting out a text line image according to the outline of the at least one text line (104); and performing text recognition on the text line image to obtain a text recognition result (105).\nC: A seal management method, comprising: receiving a seal use application form sent by a first terminal, the seal use application form carrying an institution name and a seal type, and the seal type comprising a physical seal (202); acquiring a corresponding order sending queue which comprises a seal user identifier according to the institution name, and sending the seal use application form to a second terminal corresponding to the seal user identifier (204); receiving a query request for the physical seal uploaded by the second terminal, and obtaining a storage position and the current state of the physical seal according to the query request (206); and if the current state is an available state, recording the duration of the physical seal leaving the storage position, and if the duration exceeds a preset effective time, marking the physical seal as in an abnormal state (208).\nD: An intelligent seal protection control device and a seal management system. The seal management system comprises: an application terminal (11) for sending a seal usage request, an authorization management terminal (12) for approving seal usage authorization and an intelligent seal protection control device (13) for affixing a seal; the application terminal (11), the authorization management terminal (12) and the intelligent seal protection and control device (13) communicate via a wireless network; and all the authority settings are completed via the seal authorization management terminal (12). In addition, a seal management server (14) for managing and maintaining the intelligent control device usage system can be configured. The seal management system provides possibilities of a seal management remote operation by means of network authorization authentication, achieves accurate tracking of a location, supervision, authorized use and secure storage of a seal, reduces the risk during use via an alarm, simplifies seal approval procedures, and improves the flexibility of seal usage, thereby satisfying the requirement for office working with a low degree of hierarchy in the information society, and improving the work efficiency.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a fingernail printing device, comprising a main frame (1) provided with an annular groove (11), an annular soft rubber ring (2) engraved with printing patterns (21), wherein the annular soft rubber ring (2) is embedded into the annular groove (11), the outer peripheral surface of the annular soft rubber ring (2) is provided with arch-shaped protrusions (22), with the printing patterns (21) being engraved on the arch-shaped protrusions (22); and further comprising an oil-scraping sheet (3) may be provided on the main frame (1). The present device is able to coat fingernails with patterns simply and quickly, and the device is safe enough so as to cause no damage to a user's skin during usage.\nA: A portable, suction-type, anti-fogging myopia-correction eyewear, the eyewear comprising: a myopia-correction lens body (1) and a suction pad (2) constructed using soft silicone rubber. The myopia-correction lens body (1) and the suction pad (2) are formed using injection molding. The suction pad (2) is a hollow frustum with a narrower top. An upper portion of the suction pad (2) is formed into a circular surface (22). The upper portion of the suction pad (2) is provided with a circular groove (21). The myopia-correction lens body (1) comprises a lens portion (11) and a connecting portion (12). The lens portion (11) and the connecting portion (12) are formed as a single structure. The connecting portion (12) is a frustum-shaped structure with a narrower top. A top end of the connecting portion (12) is connected to the lens portion (11). The diameter of a bottom end of the connection portion (12) corresponds to the diameter of a top end of the suction pad (2). The bottom end of the connection portion (12) is provided with a circular snap-fit protrusion (121) corresponding to the ring-shaped groove (21). The circular snap-fit protrusion (121) forms a snap-fit connection by being inserted into the circular groove (21). The portable, suction-type, anti-fogging myopia-correction correction eyewear has a simple structure and good sealing and anti-fogging properties. The eyewear can be adhered multiple times over an extended period and is resistant against aging and deformation.\nB: Disclosed are a device capable of manicuring a nail using a spray gun and a method for manicuring a nail using the manicure machine. The manicure machine (1) comprises a measuring module (2) capable of measuring a three-dimensional configuration of a finger (11)/nail; a print film module (7), wherein the print film module (7) comprises at least one print film execution module (73), the print film execution module (73) comprises a print film (710), and the print film execution module (73) can unwind/wind/move the print film (710); an engraving module (3) capable of engraving a pattern on the print film (710), wherein the print film module (7) can press the print film (710), on which the pattern is engraved, onto the finger (11); and a spraying and painting module (8) capable of coating the pattern of the print film (710) with a paint/nail polish by means of spraying and/or brushing, so as to print the pattern onto the nail. The manicure machine (1) can manicure the nail by using an airbrush and a brush without damaging the manicure pattern.\nC: Disclosed are a drip irrigation pipe with an anti-blocking function and a machining method thereof. The drip irrigation pipe comprises: a water supply pipe (1), wherein the water supply pipe (1) is used for delivering irrigation water; a cylindrical dropping head (2), wherein the cylindrical dropping head (2) is provided with an annular groove (21), and a water outlet hole (22) penetrating the cylindrical dropping head (2) is provided in the annular groove (21); and an elastic sleeve (3), wherein the elastic sleeve (3) is arranged on the cylindrical dropping head (2) in a sheathed manner and is located in the annular groove (21), the elastic sleeve (3) covers the water outlet hole (22), the cylindrical dropping head (2) is arranged in the water supply pipe (1), a water outlet (11) matching the cylindrical dropping head (2) is provided in the water supply pipe (1), and the water outlet (11) is located outside the annular groove (21). The machining method comprises the step of, in the extrusion molding process of the water supply pipe (1), enabling the cylindrical dropping head (2) to be embedded in the extrusion-molded water supply pipe (1).\nD: A waterproof ventilating sole (1) is provided. A plurality of grooves (2) are distributed on the upper surface of the sole (1). At least one through hole (3) leading to the bottom surface of the sole (1) is provided on the bottom of each of the grooves (2). A film button (5) is mounted in each of the grooves (2). The film button (5) comprises a ring corresponding to the grooves (2) and at least one waterproof ventilating film (7) tensioned on the ring. The film button (5) is provided with waterproof chamfers (6) which are the outward prolongation of the upper end of the film button (5). The bottom surface of the waterproof chamfers (6) is a plane or provided with at least a cycle of annular protrusion and/or annular concave groove. A configuration matched with the annular protrusion and/or ring concave groove is correspondingly provided on the upper surface of the sole (1).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a convenient sticker roll (100), comprising a plurality of sequentially connected convenient sticker parts (10), the convenient sticker roll being disposed rolled in the direction in which the plurality of convenient sticker parts is arranged; part of the area of one side of the convenient sticker part is a sticky area (11); at least part of the area of the other side of the convenient sticker part is a non-stick area; when rolled up, the sticky area of the convenient sticker part abuts against the corresponding non-stick area of the convenient sticker part. Part of the area of the convenient sticker roll is coated with a sticky material, thus reducing the amount of sticky material used.\nA: A display panel and a manufacturing method therefor. The display panel comprises: a display substrate (100) provided with a display area (110) and a peripheral area (120) surrounding the display area (110); and a touch layer (101) stacked on the display substrate (100) and comprising a plurality of touch electrodes (111) and a plurality of wirings (112), the orthographic projection of the plurality of touch electrodes (111) on the display substrate (100) being located in the display area (110), and the orthographic projection of the plurality of wirings (112) on the display substrate (100) being located in the peripheral area (120). One end of each of the plurality of wirings (112) is connected to a corresponding touch electrode (111), and the other ends of the plurality of wirings (112) are located in a plurality of binding areas (1200) arranged at intervals in the touch layer (101); the orthographic projection of the plurality of binding areas (1200) on the display substrate (100) is located in a first peripheral sub-area (121); the first peripheral sub-area (121) is a partial area of one side of the display area (110) in the peripheral area (120); and the plurality of binding areas (1200) are arranged in an extension direction of the outer side edge of the first peripheral sub-area (121).\nB: A display panel and a manufacturing method therefor. The display panel comprises: a display substrate (100) provided with a display area (110) and a peripheral area (120) surrounding the display area (110); and a touch layer (101) stacked on the display substrate (100) and comprising a plurality of touch electrodes (111) and a plurality of wirings (112), the orthographic projection of the plurality of touch electrodes (111) on the display substrate (100) being located in the display area (110), and the orthographic projection of the plurality of wirings (112) on the display substrate (100) being located in the peripheral area (120). One end of each of the plurality of wirings (112) is connected to a corresponding touch electrode (111), and the other ends of the plurality of wirings (112) are located in a plurality of binding areas (1200) arranged at intervals in the touch layer (101); the orthographic projection of the plurality of binding areas (1200) on the display substrate (100) is located in a first peripheral sub-area (121); the first peripheral sub-area (121) is a partial area of one side of the display area (110) in the peripheral area (120); and the plurality of binding areas (1200) are arranged in an extension direction of the outer side edge of the first peripheral sub-area (121).\nC: An epidermis fungus sampling and staining method. The epidermis fungus sampling and staining method comprises: providing a transparent detection card (100) having a detection area (11), a transparent viscous material layer (111) being attached to the detection area (11), and a surface of the transparent viscous material layer (111) being covered with a protection film (112); combing in the hair direction of a subject under test for multiple times by using a sampling comb subjected to disinfection treatment, so that dandruff is sticked to the sampling comb; uncovering the protection film (112) on the transparent detection card (100), and repeatedly attaching tooth tips where the dandruff is sticked of the sampling comb to the surface of the transparent viscous material layer (111) to enable sufficient dandruff to be sticked to the transparent viscous material layer (111); sequentially dropwise adding equal amounts of dyes A and B to the surface of the transparent viscous material layer (111), standing, and washing with deionized water; and transferring the transparent detection card (100) under a microscope for microscopy. The epidermis fungus sampling and staining method has the characteristics that sampling is convenient, samples are easy to transfer and fix and not easy to pollute, the staining time is short, and the like, and the success rate and efficiency of sampling and staining are improved.\nD: An entertainment sticker, an entertainment sticker device and a method for using an entertainment sticker. The entertainment sticker comprises a sticker body (1), a substrate (2) and a cover film (3). Edges of the cover film (3) are bonded to the substrate (2). The sticker body (1) is placed in a space enclosed by the cover film (3) and the substrate (2). One side of the sticker body (1) is provided with an image-text area, and the other side thereof is provided with a bonding layer.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe invention discloses a direct liquid type writing tool. The writing tool comprises a pen body (4), a writing element (1), an ink absorbing body (2, 13) and a fiber water leading core (3). At least one gas and liquid balancer (5) is arranged in the pen body (4) in the axis direction thereof, and is arranged in an annular gap formed by the fiber water leading core (3) and the pen body (4). One or more gas and liquid exchange grooves (9) penetrating the outer circumference face of the gas and liquid balancer (5) and having the capillary force effect on ink is arranged on the outer circumference face of the gas and liquid balancer (5). An overflow groove (10) is formed in the radial face of the gas and liquid balancer (5), one end of the overflow groove (10) makes contact with the fiber water leading core (3), and the other end of the overflow groove (10) is communicated with the gas and liquid exchange groove (9), and the outer circumference face of the fiber water leading core (3) and the inner hole wall of the gas and liquid balancer (5) are in a gapless fit or an interference fit.\nA: An electronic atomizing device, and an atomizer (100) thereof. The atomizer (100) comprises a housing (110) and a base (120). The housing (110) is fitted over the base (120); a liquid storage cavity (141) is formed on the inner side of the housing (110); at least one air-liquid balancing component (150) and at least one air inlet (1430) communicated with the at least one air-liquid balancing component (150) are further comprised; the at least one air-liquid balancing component (150) is mounted on the base (120) and is provided at the lower part of the liquid storage cavity (141); each air-liquid balancing component (150) comprises a column body extending toward the liquid storage cavity (141) and a liquid storage and air exchange structure at the circumference of the column body; the liquid storage and air exchange structure comprises at least one air return tank (153) and a plurality of liquid storage tanks (1510, 1520); one end of the air return tank (153) is communicated with the liquid storage cavity (141), and one end is communicated with the air inlet (1430) for regulating the air-liquid balance in the liquid storage cavity (141). The atomizer (100) has advantages of smooth supply of a liquid medium, high safety performance, and being not easy to leak.\nB: An electronic atomization device and an atomizer (100) having same. The atomizer (100) comprises an atomization component (130), a liquid storage cavity (141) connected to the atomization component (130) for liquid conduction, and a gas channel communicated with the atomization component (130) for gas conduction. The atomizer (100) further comprises a gas-liquid equilibrium element (150) and a gas inlet (1430) communicated with the gas-liquid equilibrium element (150). The gas-liquid equilibrium element (150) comprises liquid storage tanks (1510, 1520) with capillary force function and a gas return groove (153). One end of the gas return groove (153) is communicated with the liquid storage cavity (141), and the other end is communicated with the gas inlet (1430). The gas return groove (153) is communicated with the liquid storage tanks (1510, 1520) such that the liquid storage tanks (1510, 1520) are communicated with the liquid storage cavity (141). The gas-liquid equilibrium element (150) can balance the gas pressure in the liquid storage cavity (141), facilitate liquid discharge, prevent dry burning, and prevent liquid leakage caused by gas pressure imbalance.\nC: A liquid guide element (200) and a scribble tool (1). A three-dimensional network structure is provided inside the liquid guide element (200) and the liquid guide element (200) can absorb and release liquid. One side of the liquid guide element (200) contacts the liquid in the liquid storage element (100) of the scribble tool (1). A gap D is provided between the liquid guide element (200) and the inner wall of the liquid storage element (100). The diameter of the maximum inscribed circle of the gap D is between 0.03 mm and 0.25 mm. The liquid guide element (200) controls the gas-liquid exchange of the scribble tool (1). By providing the gap between the liquid guide element (200) and the inner wall of the liquid storage element (100), the liquid guide element (200) can control the gas-liquid exchange of the scribble tool (1), thereby satisfying the performance requirements of different scribble tools (1).\nD: An electronic atomization device and an atomizer (100) thereof. The atomizer (100) comprises a housing (110) and an atomization assembly (130) provided in the housing (110); a liquid storage cavity (141) is formed inside the housing (110), and the atomizer further comprises at least one liquid guide element (160), an air-liquid balancing element (150), and an air inlet (1430) communicated with the air-liquid balancing element (150); the air-liquid balancing element (150) comprises a through hole (1560) and an liquid storage and air exchange structure (252) located at the periphery of the through hole (1560); the at least one liquid guide element (160) is correspondingly inserted into the through hole (1560), and the liquid storage cavity (141) is in liquid guide connection with at least one end of the atomization assembly (130); the liquid storage and air exchange structure (252) is provided at the periphery of the atomization assembly (130) and comprises at least one return air tank (153) and a plurality of liquid storage tanks (1510, 1520); one end of the return air tank (153) is communicated with the liquid storage cavity (141), and the other end is communicated with the air inlet (1430); the liquid storage tanks (1510, 1520) are at least partially connected to the at least one liquid guide element (160) to balance liquid supply of the at least one liquid guide element (160). The atomizer (100) has the advantages of being smooth in liquid medium supply and not prone to leakage.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ink bottle for supplying ink to a printing device, the bottle comprising a bottle body (1) and a bottle cap, the cap comprising an ink filling nozzle (2) and a connecting portion (3). The ink filling nozzle (2) and the connecting portion (3) each are provided with a first sealing connecting end (4) and a second sealing connecting end (5), the ink filling nozzle (2) is in communication with the connecting portion (3) via the second sealing connecting end (5), and the connecting portion (3) is in threaded fit with a neck of the bottle body (1). The bottle cap of the ink bottle may be adapted to two sealing caps of different shapes and sizes, and has good universality.\nA: An automobile tire glue-water bottle comprises a bottle body (1) for accommodating the glue-water and a glue-water hose (2) which is arranged inside the bottle body, wherein an opening on the glue outlet end of the bottle body is provided with a second bottle cap (8) and a first bottle cap (3) which completely wraps the second bottle cap, and the second bottle cap can slide inside the first bottle cap; the glue-water hose (2) is used for leading out the glue-water inside the bottle body through a glue-water bottle connecting pipe penetrating the second bottle cap; the end part of the glue-water hose is connected with a retaining valve, the retaining valve comprises a retaining valve body (51), a sealing end cap (53) and a retaining valve cap (52) which is arranged on the end part away from the glue-water hose of the retaining valve body, a through pipe is arranged inside the retaining valve body, a glue guiding groove (511) communicated with the through pipe is arranged on the end away from the retaining valve cap, and the sealing end cap is arranged inside the through pipe and moves along the axial direction of the bottle body inside the through pipe; and a gravity ring (7) wrapping the retaining valve is arranged outside the retaining valve. Through the design of the gravity ring, the tire glue-water bottle enables full utilization of the glue water inside the bottle body, simple structure, and convenience in use.\nB: A hydrogen-rich water generation bottle cap mounted on a mineral water bottle. A drinking water spout (1) is formed at the top of the bottle cap. An internal thread (6) connected to the opening of the mineral water bottle is formed on the inner wall of the bottle cap. A hydrogen-rich water generation unit comprising a separator (2), a hydrogen generation box (3), and a rotary seal switch (5) is provided between the internal thread (6) and the top of the bottle cap. The separator (2) is circular, and the edge of the separator (2) is fixed to the inner wall of the bottle cap. A buffer space is formed between the separator (2) and the drinking water spout (1). A water through hole is formed on the separator (2). The cylindrical hydrogen generation box (3) with an opening end is provided on the side of the separator (2) facing the spout of the bottle cap. The opening end of the hydrogen generation box (3) is inserted into a mounting hole on the separator (2) by means of an elastic fastener. A hydrogen rich water stick (7) is provided in the hydrogen generation box (3). Meshed holes are formed on the side surface and the bottom surface of the hydrogen generation box (3) respectively. The diameter of the hydrogen generation box (3) is smaller than the inner diameter of the bottle cap. The rotary seal switch (5) comprising a fixing ring rack (501), a fixed plate (502), and a movable plate (503) is provided below the hydrogen generation box (3). The hydrogen-rich water generation bottle cap is able to generate hydrogen-rich water by means of contact between the hydrogen rich water stick and water. A bottle cap provided with a hydrogen rich water stick is used in replacement of a conventional bottle cap to generate hydrogen-rich water in the mineral water bottle, improving the portability and the versatility of the hydrogen-rich water generation device.\nC: A gas cylinder, comprising a cylinder body (1) filled with compressed carbon dioxide and a connecting member (2); the connecting member (2) has two open ends, a first open end (21) of the connecting member (2) is fixedly connected to the opening of the cylinder body (1), and a second open end (22) of the connecting member (2) is connected to a sealing cover (3) in a sealed manner, and a channel (23) in communication with the first opening end (21) and the second opening end (22) is provided inside the connecting member (2); the channel (23) is in communication with the inner cavity of the cylinder body (1); the outer side wall of the connecting member (2) is provided with an external thread (4); and the height H of the gas cylinder is 3 cm to 20 cm. The structure of the gas cylinder is very simple in design, small in volume and light in weight, allows easy and direct installation and use of the gas cylinder, and has good air tightness, being capable of effectively reduce the consumption of high pressure gas, reducing costs.\nD: The present invention provides an ink filling device for an ink cartridge (1), the ink filling device comprising a base (2), an upper casing (3) connected to the base (2) and an ink filling container (4) for containing ink. The upper housing (3) has an ink cartridge receiving cavity (38) for placing the ink cartridge (1). An ink filling interface (34) to be joined to an ink outlet (41) of the ink filling container (4) and an ink filling needle (33) to be inserted into an ink filling hole (11) on the ink cartridge (1) are further disposed on a top wall (31) of the upper casing (3). The ink filling container (4) is a negative-pressure ink filling container capable of extracting air from the ink cartridge in advance.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a multi-functional engraving machine, comprising a base (1), upright columns (2), an engraving platform and a cutter mechanism. The engraving platform comprises a movable platform (3) and a workpiece clamping device (4). The movable platform (3) is provided with an automatic rising-lowering platform. The automatic rising-lowering platform comprises a platform surface (5), a platform surface rising-lowering frame (6) and a platform surface automatic rising-lowering mechanism. The platform surface automatic rising-lowering mechanism is fastened on a beam in the middle of the movable platform (3). The platform surface rising-lowering frame (6) is fixed to the platform surface automatic rising-lowering mechanism. The platform surface (5) is fixed to the platform surface rising-lowering frame (6). The multi-functional engraving machine using the above-mentioned structures can enable the rising-lowering platform to perform automatic rising-lowering by means of a program code. When a plane is engraved, the platform surface rises, and when a three-dimensional object is engraved, the platform surface automatically lowers. Thereby, the present invention has a high degree of automation, and is widely used and is easy and safe to operate.\nA: Provided is a lighting device for a multifunctional medical rescue platform; a table (11) has a cubic board-shaped structure; the middle position of the lower end of the table is equipped with a lifting/lowering bar (2); the central axis of the lifting/lowering bar (2) is arranged perpendicular to the lower end face of the table (11); the lifting/lowering bar (2) is assembled together with a screw-thread jack (5); the screw-thread jack (5) is mounted on a movable platform (13); casters (4) are fixed on the lower end of the screw-thread movable platform (13); a snap groove (7) is provided on the end faces of the two sides of the table (11); the table (11) is raised or lowered by means of adding to the screw-thread jack (5); such a design is convenient for medical care personnel to adjust the height according to requirements; in addition, the process of raising and lowering the screw-thread jack (5) is smooth and gradual, thus solving the problem of conventional lifting/lowering devices being overly jarring and uncontrolled; additionally, the design of the solar panel (3) is convenient for converting solar energy into electrical energy and storing it, and the design effectively addresses the problem of electrical energy; in addition, the design of the LED lamp (12) solves the problem of a conventional table (11) being unable to perform a lighting function, and the design is convenient for medical care personnel to attend to a patient.\nB: A lift mechanism of an exhibition portable power distribution cabinet comprises a portable power distribution cabinet (1), a servo motor (2), a reduction drive (3), four vertical threaded rods (4), four threaded rod sleeves (5), four chain wheels (6), a chain (7), and a lift platform (8). The four vertical threaded rods (4) are arranged vertically, and lower ends of the vertical threaded rods (4) are rotatbly disposed on the portable power distribution cabinet (1). The four chain wheels (6) are fixed at the lower ends of the four vertical threaded rods (4), respectively. The chain (7) is arranged on the four chain wheels (6). Lower ends of the four threaded rod sleeves (5) are fit via openings to upper ends of the four vertical threaded rods (4) and connected using threads to the vertical threaded rods (4), respectively. Upper ends of the four threaded rod sleeves (5) are fixed at a lower side of the lift platform (8). The lift platform (8) is arranged horizontally. The lower end of one of the four vertical threaded rods (4) is connected to the reduction drive (3) and driven by the same. The reduction drive (3) is connected to the servo motor (2) and driven by the same. The lift mechanism is simple in structure, easy to operate, and implements automatic opening of the lift platform (8), saving time and effort, and ensuring safety.\nC: An electric lifting platform capable of retracting upon encountering a resistance, comprising a lifting upright (1), a platform (2), a controller (4), and a manipulator (5). The controller (4) comprises a master MCU (42) and a motor driving circuit (43). An output end of the master MCU (42) is connected to the motor driving circuit (43). The electric lifting platform further comprises a multi-axis sensor module (6) configured to acquire resistance-encountering data of the platform (2). The multi-axis sensor module (6) acquires changes in platform panel motion states on different axes, thereby meeting changes in platform panel motion states caused by different collision objects at different positions. Installation position requirements are not strict, direct contact with a force-receiving surface is not required, and low-pressure collisions can also be detected. The multi-axis sensor module (6) is connected to an input end of the master MCU (42). The master MCU (42) sends a control signal to the motor driving circuit (43) after processing the resistance encountering data. The motor driving circuit (43) controls the lifting upright (1) to perform a corresponding retraction action. The lifting platform enables sensitive and rapid detection of an obstruction upon encountering the obstruction, has improved safety.\nD: Provided is a three-dimensional engraving machine, which resolves the problem of inaccurate engraving in existing engraving machines; the invention comprises a machine frame and an engraving platform (17) arranged on said machine frame; a position-limiting clamp (7) used for clamping is disposed above the engraving platform (17); the machine frame comprises a base (1) and vertical columns (2) arranged at the two sides of the base (1); a transverse beam (12) connects the two vertical columns (2); the base (1) is provided with a vertical motor which drives the engraving platform (17) in reciprocating horizontal and vertical motion; the transverse beam (12) is fixedly connected between the vertical columns (2), and the parallel vertical columns (2) are provided with a horizontal lateral guide rail (11) for connection; a blade frame (8) is connected to the guide rail (11) using support plates (9). The blade may oscillate forward and backward, driven by a motor in coaxial concomitant motion, performing three-dimensional machining at various angles, thus improving engraving accuracy and making the invention suitable for complicated engraving machining.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA decorative water cup comprises a housing (1), a pump device (2) provided in said housing (1), said pump device (2) comprising a pump housing (21), an electric motor (23) being arranged within said pump housing (21), and a vibration-damping layer (22) being arranged between the electric motor (23) and the inner surface of the pump housing (21). The vibration-damping layer (22) very effectively absorbs vibration occasioned when the electric motor (23) is in operation, allowing the electric motor (23) to operate with greater efficiency, and allowing the electric motor (23) to operate more quietly.\nA: A decorative water cup, comprising a housing (1), said housing (1) comprising a cup body (11) and a base (12), the cup body (11) comprising an accommodation portion (111) and a transparent portion (112), and a cavity (121) being provided within the base (12). The accommodation portion (111) is arranged within the cavity (121); the transparent portion (112) is made of a transparent material and is configured as a plurality of prisms. Because the transparent portion (112) is configured as a plurality of prisms, light rays striking the cup body (11) are reflected a number of times, making the cup body (11) appear more crystalline and dazzling to the eye, thus significantly enhancing the aesthetic appeal of the decorative cup.\nB: A decorative light, comprising a housing (1), a circuit board (11) being provided within the housing (1), an LED light (111) being provided on the circuit board. The housing (1) comprises a lower cover (12), a battery compartment (121) being provided on the lower cover (12). A battery (122), which is electrically connected to the circuit board (11), is provided within the battery compartment (121), and a battery fastening block (13) is provided on the battery compartment (121), a fastening block stopper (131) being provided on the battery fastening block (13). The battery fastening block (13) is fixedly connected to the lower cover (12), compressing, limiting and fixing the battery (122) by means of the fastening block stopper (131). The battery fastening block can fix the battery within the battery compartment, effectively preventing the battery from shaking (122), thereby ensuring the usage performance of the battery (122), and enabling the battery (122) to be used more safely and reliably.\nC: A washing and draining integrated pump, comprising a power unit, a washer pump, a drainage pump, a washer pump water inlet chamber (42), and a drainage pump water inlet chamber (43). The power unit comprises a motor shell (1), a motor, and a motor shaft (10); the washer pump comprises a washer pump shell (2), a washer pump cavity (20), a washing impeller (12), and a washing water outlet (22); the drainage pump comprises a drainage pump shell (3), a drainage pump cavity (30), a drainage impeller (13), and a drainage water outlet (32); the washer pump water inlet chamber (42) is provided with a washing water inlet (21); the drainage pump water inlet chamber (43) is provided with a drainage water inlet (43); the motor shaft (10) passes through the washing impeller (12) and the drainage impeller (13) and can drive the washing impeller (12) and the drainage impeller (13) to rotate; a crushing blade (61) is mounted on the motor shaft (10) and used for first crushing food residues during draining. On the other hand, the washer pump water inlet chamber (42) and the drainage pump water inlet chamber (43) are combined to constitute an integrated water inlet chamber (4), and a filter means (63) is provided at the joint where the integrated water inlet chamber (4) is communicated with the washer pump cavity (20). A washing and draining integrated pump using this structure has less parts, occupies a small space, and is low in costs and high in the integration degree; during drainage, by first crushing residues and then discharging same, the user experience is improved.\nD: An air-cooling air compressor having an improved structure, the air compressor comprising an electric motor and an air pump body. The electric motor comprises an electric motor housing (10), a stator (11) and a rotor (12), wherein the stator (11) is fixedly arranged in the electric motor housing (10), and the rotor (12) is rotatably arranged in the stator (11). The air pump body comprises an air pump housing (20), a crank (21), a connecting rod (22), a valve plate (23) and an air cylinder cover (24), wherein the crank (21) and the connecting rod (22) are arranged in the air pump housing (20); the air cylinder cover (24) is arranged above the air pump housing (20); the valve plate (23) is clamped between the air cylinder cover (24) and the air pump housing (20); the electric motor housing (10) is connected to the air pump housing (20); a rotating shaft (121) of the rotor (12) extends into the air pump housing (20) and is connected to the crank (21); a fan base (31) is further arranged above the air cylinder cover (24); and a fan (32) used for carrying out air-cooling heat dissipation on the air cylinder cover (24) is arranged in the fan base (31).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a tire self-rescuing recovery device, mainly comprising a recovery boot (1), a diagonal member (2), a hook connecting base (4) and a hook (5). The recovery boot (1) is of a housing consisting of an arc-shaped plate (1-3) at the top, end plates (1-4) at two ends and side plates (1-5) on two sides, wherein a lower part of the housing is opened, and an outer side of a tire can be clamped by the housing to form a bulge. Two diagonal members (2) are fixed on a side plate (1-5) on one side. The recovery boot (1), the two diagonal members (2) and the hook connecting base (4) form a triangular bracket. A through hole (4-1) passing through the upper side and the lower side is formed in the middle of the hook connecting base (4). A hook rod of the hook (5) passes through the through hole (4-1). An upper section of the hook rod is a screw rod (5-1). A fastening screw nut (3) is arranged at a part of the screw rod (5-1) extending out of the through hole (4-1) and positioned above the hook connecting base (4). A lower end of the hook (5) adopts a hook head (5-2) which faces towards an inside of the side plate (1-5). The present device is convenient to mount and dismount, and can be applied to automobile tire recovery.\nA: An adjustable ditching apparatus of an agricultural machine, comprising a fixed stand column (1). A ditching shovel fixing plate (2) is fixedly installed on the outer surface of one side of the fixed stand column (1), two locking screws (3) are movably installed on the inner side of the ditching shovel fixing plate (2), a ditching shovel (4) is arranged on the upper surface of the ditching shovel fixing plate (2), a soil dividing plate (5) is fixedly installed on the upper surface of the ditching shovel (4), two locking nuts (6) are fixedly installed on the upper surface of the ditching shovel (4) located on the outer side of the soil dividing plate (5), an adjusting slot (7) is provided on the inner side of the ditching shovel (4), a support connecting base (8) is fixedly installed on the outer surface of the other side of the fixed stand column (1), a roller support (9) is arranged on the outer surface of one side of the support connecting base (8), a movable roller (10) is rotationally installed on the inner side of the roller support (9), an adjusting support (11) is fixedly installed at the outer surface of the other side of the fixed stand column (1) above the support connecting base (8), an adjusting screw rod (12) is threadedly installed on the inner side of the adjusting support (11), a connecting ball head (13) is fixedly installed on the outer surface of the lower end of the adjusting screw rod (12), and a pulling frame (14) is fixedly installed on the outer surface of one side of the fixed stand column (1) above the furrowing blade fixing plate (2). The adjustable ditching apparatus of the agricultural machine can adjust the ditching depth and the supporting height of the movable roller, and can meet the requirements for different ditching depths on different types of land.\nB: Disclosed is a control mechanism for a dynamic balancing vehicle installed on the dynamic balancing vehicle. The dynamic balancing vehicle comprises a vehicle body and a steering mechanism disposed on the vehicle body. The control mechanism comprises a post (1), a connecting seat (2), a leg-controlling pad (3), a handle (4) and a grip (5). A sliding space is formed inside the post (1) for the handle (4) to slide, and the sliding space has a first position and a second position. An upper end of the post (1) is connected to the connecting seat (2), a lower end of the post (1) is connected to a steering mechanism, and when the post (1) turns, the steering mechanism is driven to turn so as to control the steering of the vehicle body. The connecting seat (2) is formed with an opening thereon, through which the handle (4) is inserted into the sliding space. The leg-controlling pad (3) is connected at two sides of the connecting seat (2) and drives the post (1) to turn. The handle (4) is telescopically slidable along the sliding space and limited therein to slide between the first position and the second position. The grip (5) is connected to the handle (4) and drives the post (1) to turn, and the position of the grip (5) is adjusted through the handle (4). The control mechanism is applicable to hand-operation and leg-operation at the same time.\nC: Disclosed is a portable escape device (30) for self-rescue in the case of an auto tyre being trapped in a pit, comprising support posts (36, 12), a clamping device (38, A) fitted to the support posts (36, 12), and a jacking device (40, B) fitted to the clamping device (38, A). The support posts (36, 12) is fixedly mounted onto spokes (32, 2). The clamping device (38, A) clamps onto an auto tyre (1). The jacking device (40, B) protrudes and extends out of a top face of a tyre portion (34). The portable escape device (30) for self-rescue in the case of an auto tyre being trapped in a pit can release the trapped auto tyre and perform self-rescue fast and reliably, and is convenient to carry.\nD: An easy curtain hook comprises an air bag (1), a main frame (2), attachment teeth (3), a retaining bar (4) and a hook (5). The attachment teeth (3) are arranged at a lower end surface of the main frame (2) to attach to a curtain fabric, preventing the hook (5) from falling, and enhancing attachment. The retaining bar (4) is fixed at a right end of the main frame (2). The hook (5) is arranged above the retaining bar (4). A left portion of the hook (5) is arranged at a middle position of an upper end of the air bag (1) to realize self-locking of the hook (5), facilitating detachment of the hook (5), reducing labor, and enabling secure fastening.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fixed vehicle safety inspection system comprises a ray source (10), a vehicle tractor and a detector (11). The vehicle tractor comprises a front fork arm (1), a rear fork arm (3), a front fork arm shaft (2), a rear fork arm shaft (4), a traction mechanism (5), a control unit, a drive unit and a traction passage (7). The front fork arm (1) and the rear fork arm (3) are connected to the front fork arm shaft (2) and the rear fork arm shaft (4) respectively, and can horizontally rotate around the front fork arm shaft (2) and the rear fork arm shaft (4) respectively under the control of the control unit. The front fork arm shaft (2) and the rear fork arm shaft (4) are arranged with one behind the other and are connected with the traction mechanism (5); the axial directions of the front fork arm shaft (2) and the rear fork arm shaft (4) are both perpendicular to the surface of the traction mechanism (5).\nA: Disclosed are a vehicle traction device and a radiation imaging checking system. The vehicle traction device comprises a frame body (1) and a vehicle wheel fixing structure, wherein the vehicle wheel fixing structure is connected to the frame body (1), and is used for fixing wheels of a detected vehicle; and in a scanning plane perpendicular to an emitting direction of a ray, the projection of the frame body (1) is located on an outer side of the projection of a vehicle body of the detected vehicle. The projection of the frame body (1) of the vehicle traction device is located on the outer side of the projection of the vehicle body of the detected vehicle, and therefore, compared with the prior art, the frame body (1) does not obstruct the ray for detecting the detected vehicle, thereby improving the imaging quality.\nB: A hand-driven bicycle including a handlebar (1), a vertical tube (2), a flywheel(8) mounted on the front wheel and a steel wire (16). The first end of the vertical tube is fixedly connected with the handlebar. The second end of the vertical tube is rotatably connected with a fork arm (6). A rocker arm (14) is extended from the second end of the vertical tube towards the front wheel's direction. The vertical tube is fixed together with the rocker arm, which form the power lever. The first end of the steel wire is fastened at the end location (7) of the fork arm. The second end of the steel wire is fixed on the flywheel of the front wheel around a pulley(15) on the free end of the rocker arm. While the handlebar is moved back and forth, the free end of the rocker arm is also moved back and forth, which drives the flywheel rotate through the steel wire so as to drive the front wheel run. The hand-driven bicycle enhances its speed and brings the cyclists' body movement.\nC: Disclosed is a lead-out type independent suspension with multiple supporting points, comprising an upper fork arm (1), a lower fork arm (2), elastic members (3), a damper (4) and a fork arm positioning shaft (5), wherein the upper fork arm (1) and the lower fork arm (2) are A-shaped structural components, the front ends of the upper fork arm (1) and the lower fork arms (2) are respectively connected to an upper hanging point and a lower hanging point of a vehicle wheel (C) via master pins (B), the rear ends of the upper fork arm (1) and/or the lower fork arms (2) are connected to a vehicle frame in different damping manners, and the damper (4) is mounted on an upper part of the front end of the upper fork arm (1). The upper and lower fork arms of the independent suspension construct reasonable vehicle supporting shaft points and transferring components, by using a lever, a torsion bar and the principle of moment of force, enables the shaft hanging points of the upper and lower fork arms to absorb a borne elastic force by means of a retracing force and the arm of a force or by changing directions, so as to be configured that multiple points support multiple elastic members so as to realize multipoint decomposition of the force sustained by the vehicle wheel to increase an average driving speed. The increase in the number of elastic members and the reasonable arrangement thereof can lower the height of the vehicle, and further optimize the space usage, thereby improving the stability and the running smoothness of the vehicle.\nD: An improved bicycle frame structure, comprising a frame (1), a rear fork foot (2), a front fork foot (3) and a bottom bracket (4), the rear fork foot (2) and the front fork foot (3) being respectively fixed to rear and front ends of the frame (1), and the bottom bracket (4) being located at a lower end of the middle of the frame (1). Inner bearing positions are provided in both the rear fork foot and the front fork foot, so that a rear wheel carrier bearing (6) and a front wheel bearing (5) are respectively and correspondingly fitted in the respective inner bearing positions. The front fork foot and the front wheel bearing are fixed and connected by a front wheel hub fixing pin (11) in a penetrating manner, a front wheel hub (8) is sheathed on the front wheel hub fixing pin, and there is no need to provide corresponding bearings in the front wheel hub. The rear fork foot and the rear wheel carrier bearing are fixed and connected by a rear wheel hub fixing pin (12) in a penetrating manner, a rear wheel hub (9) is sheathed on the rear wheel hub fixing pin, and there is no need to provide corresponding bearings in the rear wheel hub. Outer bearing positions are provided on both ends of a horizontal straight tube of the bottom bracket, a crankshaft bearing (7) is sheathed on each of the outer bearing positions, a crankshaft (10) is sheathed on the outside of the crankshaft bearing, and a main shaft of the crankshaft is arranged to be penetrating the horizontal straight tube of the bottom bracket and fixedly connect two crankshafts. The frame structure simplifies the structure of a hub, reduces the difficulty of manufacturing the hub, and improves the bending resistance and torsion resistance of a crankshaft.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a land and water flying automobile comprising a shell (3), a chassis (12) and a lower boat body (14), wherein the shell (3) is fixedly provided on the chassis (12), and the lower boat body (14) is connected under the chassis (12); a water rudder (15) and a propeller (16) are provided at the rear lower part of the chassis (12); an upper aerofoil (6) and a rotor (5) are provided at the top part of the shell (3) and fixed on a bearing frame at the centre of gravity of the machine body, and the upper aerofoil (6) is hinged to the shell (3) via a hinged shaft; a strake (10) is provided on the joining point of the shell (3), the chassis (12) and the lower boat body (14); a horizontal wing includes a stabilizer (13) and an elevator (9), respectively provided on the front end and the rear end of the machine body; twin vertical tail wings (7) are provided on two sides at the rear end of the machine body, a root part thereof being fixedly connected to the strake (10); an automobile engine (1) is provided at the front of the chassis (12), and is connected to vehicle wheels (11) and the propeller (16) via a transmission system; an aircraft engine (8) is provided at the rear end of the machine body and is connected to the rotor (5) via a transmission system; and an operating system (2) contains a hydraulic rigid mechanical operating system and a quasi-active control system. The present invention integrates the existing automobile, boat and aircraft technology, achieving a land and water flying automobile able to travel in different media.\nA: Disclosed are a flying motorcycle or automobile, and a flying posture adjustment method therefor. Propulsion devices and propulsion device driving apparatuses are arranged on a body of the flying motorcycle or automobile, propellers are mounted within the propulsion devices, and the propulsion device driving apparatuses control the direction of rotation of the propulsion devices. The propulsion devices comprise a left front propulsion device and a right front propulsion device symmetrically mounted at a front left side and a front right side of the body, and rear propulsion devices mounted at the rear of the body. The flying motorcycle or automobile adjusts the flying posture by means of the propulsion device driving apparatuses causing the propulsion devices mounted on the two sides and the rear of the flying device to tilt angles so as to implement steering, forward and backward movement, and left panning and right panning of the flying motorcycle. The present invention enables the flying motorcycle or automobile to constantly maintain a horizontal state during flight, may be applied to manned flight, and has a very wide range of applications.\nB: An electric pruner, comprising a machine body housing (28), a machine head main body provided at the front end of the machine body housing (28), and a power cord (29) provided at the back end of the machine body housing (28). A motor (1) is provided inside the machine body housing (28), the motor (1) is connected to a gearbox gear ring (3), the gearbox gear ring (3) is connected to a feed screw nut (19); the motor (1) is connected to a planetary gear (4) by means of a motor gear (2), the planetary gear (4) is fixed onto a planetary gear carrier (5), one end of the planetary gear carrier (5) is connected to a universal joint transmission block (6), a universal joint sleeve (17) is provided at the outer side of the universal joint transmission block (6); a first bearing (7) is fixed onto the planetary gear carrier (5), a first spherical bowl (9), a first ball head (10) and a second bearing (12) are respectively and sequentially fixed to a third bearing (13), a second ball head (14) and a second spherical bowl (15) which are provided on a lead screw (16); the lead screw (16) is fixed onto the machine head main body, the lead screw (16) is provided with a Hall plate (21) at the lower part of the fixing end of the machine head main body, a trigger (20) is provided at the bottom of the Hall plate (21), a magnet (18) is provided between the Hall plate (21) and the lead screw (16); the front end of the machine head main body is provided with a fixed cutter blade (24) and a movable cutter blade (25), the fixed cutter blade (24) is provided at the lower end of the movable cutter blade (25).\nC: A flying car, comprising a body (6) and wheels (4). First wing bays (3) and a second wing bay (5) are arranged on the body; folding wings (8) are respectively arranged in the first wing bays and the second wing bay; the folding wing comprises a first folding shaft (16), a second folding shaft (17), and a third folding shaft (18); the first folding shaft, the second folding shaft, and the third folding shaft are arranged in a sleeved manner; a motor box (20) is connected onto the third folding shaft; the motor box is arranged in a rotatable manner with respect to the third folding shaft; a propeller (19) is mounted on the motor box; a propeller drive motor is arranged in the motor box; the propeller is arranged in a folding manner with respect to propeller recesses. Therefore, when the flying car travels on the ground, the folding wings can be rapidly retracted into the first wing bays and the second wing bay, and the first folding shafts, the second folding shafts, the third folding shafts, the propellers, and the motor boxes can be tightly retracted, thereby ensuring that there will be no part of the folding wings extending out of the surfaces thereof when the flying car travels on the ground, and ensuring the safety and service life of the folding wings.\nD: A dust suppression vehicle, comprising a vehicle head (1), a chassis (6), a water tank (5), a sprayer (8) and a control system. The water tank (5) is disposed in the middle of the chassis (6). The sprayer (8) is located at the rear of the chassis (6). The sprayer (8) comprises a fan, a water pump (14) and a ventilator (9). The fan comprises fan blades and a fan electric motor (M1). The fan blades are arranged on a rotating shaft of the fan electric motor (M1). The fan electric motor (M1) is arranged in the ventilator (9), and the ventilator (9) is internally provided with a spray ring, that is, the spray ring is disposed inside the ventilator (9). The water pump (14) is connected to a water pump electric motor (M2). A water outlet of the water pump (14) is connected to the spray ring by means of a flexible pipe. The water outlet of the water pump (14) is connected to the water tank (5) by means of a pipeline. The ventilator (9) is located on a base (11). The front portion of the ventilator (9) is hinged to the base (11). The base (11) is rotatably connected to the chassis (6), and the base (11) is connected to a rotary electric motor (12). The rotary electric motor (12) can drive the base (11) to rotate, and the rotary electric motor (12) is disposed on the chassis (6). In this way, the adjustment of the air speed, the direction and the amount of water output is facilitated, the operator control difficulty is reduced, and the dust removal effect is improved.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn amphibious bicycle outer assembly frame, comprising a front foldable frame, a rear foldable frame, a front buoy, a rear buoy, a control group and a propeller; the front buoy is mounted on the front foldable frame, and the rear buoy is provided on the rear foldable frame; the propeller is mounted on the rear buoy; the control group comprises a battery pack (1), a front control cable (2), a rear control cable (3), a front frame motor (4), a rear frame motor (5), a propeller motor (6) and three control buttons (7); the front control cable (2) and the rear control cable (3) are respectively connected to the front foldable frame and the rear foldable frame; the front frame motor (4), the rear frame motor (5) and the propeller motor (6) are respectively in transmission connection with the front control cable (2), the rear control cable (3) and the propeller; the three control buttons (7) respectively controls the operation of the three motors; and the battery pack (1) supplies power to the three motors. The amphibious bicycle outer assembly frame can control the folding and unfolding of the assembly frame by means of the motors and is very conveniently, and the outer assembly frame can reduce the occupied space by folding and stowing. The amphibious bicycle outer assembly frame can realize the function of riding on water by unfolding the frame when launching, and can restore the function of a bicycle of riding on land by folding the frame to an appropriate position.\nA: Disclosed is a submersible propeller. The submersible propeller comprises a battery and a propeller body. The propeller body comprises a left propeller body (2) and a right propeller body (10), the front portions of the left propeller body (2) and the right propeller body (10) are connected to a waistband-type power supply battery (12) respectively by means of a left propeller body power supply cable (1) and a right propeller body power supply cable (11); and the rear portions of the left propeller body (2) and the right propeller body (10) are respectively connected to a left angle controller (5) and a right angle controller (7) by means of a left angle controller connecting cable (4) and a right angle controller connecting cable (8); and the left propeller body (2) and the left angle controller body (5), and the right propeller body (10) and the right angle controller (7) are distributed in a left-right symmetry manner. By means of the angle controllers on legs, the modes of advancing, variable-speed advancing, reversing, turning, in-situ steering, etc. can be carried out, and the whole operation process only depends on control by a diver by adjusting the included angle between thighs and calves, and does not need to be controlled by hands at all.\nB: A tail-extended inflatable boat, comprising: a boat body (1) provided with a left air chamber (7) and a right air chamber (8) on two sides thereof; a rudder (2) fixed between a fore cabin (6) of the boat and a foot pedal propeller arranged on a propeller supporting plate (5); foot pedals (3) arranged above a water surface and on an upper end of the boat body (1), and connected to the foot pedal propeller; a seat (4) arranged on the boat body (1). The propeller supporting plate (5) is fixed above the left air chamber (7) and the right air chamber (8) of the boat body (1), and the fore cabin (6) of the boat is arranged on an inner side of a front end of the boat body (1). The air chambers arranged on the two sides of the boat are extended on the basis of an existing inflatable boat, and the buoyancy of the extended air chambers (7, 8) is greater than the total weight of an adult, the foot pedal propeller and the propeller supporting plate (5). The foot pedal propeller is mounted on the propeller supporting plate (5), and a person rides on the foot pedal propeller with two feet alternately pedaling the foot pedals (3), enabling the inflatable boat to move back and forth easily. The rudder (2) is mounted between the foot pedal propeller and the fore cabin (6) of the boat, such that the direction of the boat can be conveniently and effectively controlled.\nC: A routing structure of a folding bicycle comprises a control line (1), a front frame provided with a front folding connector (21), and a back frame provided with a back folding connector (31). The front frame and the back frame are hinged to be folded together through the front folding connector (21) and the back folding connector (31), a first through hole (211) is formed in the front folding connector (21), a second through hole (311) is formed in the back folding connector (31), and a protective sleeve (5) is fixedly arranged in the first through hole (211) and the second through hole (311) in a penetrated mode. The control line (1) is arranged in the first through hole (211), the second through hole (311) and the protective sleeve (5) in a penetrated mode. The control line (1) is fixedly provided with a clamping stopping part (6), and the clamping stopping part (6) and one end, arranged in the first through hole (211) in the penetrated mode, of the protective sleeve (5) are arranged in a corresponding limiting mode. When the front folding connector (21) and the back folding connector (31) are unfolded and folded, the two ends of the protective sleeve (5) are arranged in the first through hole (211) and the second through hole (311) respectively. The control line is protected by the protective sleeve, so that the control line is prevented from being abraded, the parts, located at the position of the folding connectors, of the control line are prevented from being arched outside the folding connectors, and the folding smoothness is improved.\nD: An amphibious canoe comprises a canoe body (1). A sliding rail (2) is provided within the canoe body (1), a footrest (3) is fixedly provided on the sliding rail (2) and a seat (4) is slidably provided on the sliding rail (2) behind the footrest (3). A frame (5) is also provided on the canoe body (1), rockers (6) are hingedly provided on the left and right sides of the frame (5), detachable or reversible wheel assemblies (7) are respectively provided on the front side and the rear side of the frame (5), and the rockers (6) are drivingly connected to the front wheel assembly or the rear wheel assembly through a cable (8). Said canoe can be used on land and in water.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an independent suspension system, comprising: a supporting arm (100); an upper cross arm (200) for pulling an upper portion of the supporting arm (100); a lower cross arm (300) for pulling a lower portion of the supporting arm (100); and an airbag damping support (400), the middle portion of which is arranged on the supporting arm (100), wherein the airbag damping support (400) is provided with a first airbag and a first damper on one side of the supporting arm (100), and the airbag damping support (400) is provided with a second airbag (500) and a second damper (700) on the other side of the supporting arm (100). By means of providing the airbag damping support (400), the first airbag and the second airbag (500) can be located on two sides of the supporting arm (100) so as to expand the safety distance from the first airbag and the second airbag (500) to wheels, such that the vertical motion of the vehicle can be prevented from interfering with the first airbag and the second airbag (500), and the sizes of the first airbag and the second airbag (500) are no longer limited, and the arrangement of the first airbag and the second airbag (500) enables the independent suspension system to bear a larger load. A vehicle using the suspension system is further provided.\nA: An airbag (10) and a folding method for the airbag (10). The airbag (10) comprises a first airbag cavity (100) and a second airbag cavity (200), the second airbag cavity (200) is arranged on a panel of the first airbag cavity (100), and when the airbag (10) is in an unfolded state, the size of the second airbag cavity (200) in a first direction (V) is smaller than the size of the first airbag cavity (100) in the first direction (V); the first airbag cavity (100) is provided with a left part (130) and a right part (140) which are arranged along a second direction (H), when the airbag (10) is in a folded state, the left part (130) and the right part (140) are folded inward to form a left covering part (1301) and a right covering part (1401), the left covering part (1301) and the right covering part (1401) each are configured to cover part of the second airbag cavity (200) to completely cover the second airbag cavity (200) from the left and right sides, the second direction (H) being different from the first direction (V). Therefore, the unfolding speed of the second airbag cavity (200) can be effectively controlled, and the second airbag cavity (200) can only be inflated and unfolded at a desired operating position, thereby improving the stability of the airbag (10) during inflation and unfolding.\nB: A suspension structure of a tram, comprising: a frame (100); a front axle structure (200); a rear axle structure (300); a front suspension assembly (400), comprising two supports (410) which are symmetrically distributed on the left and right, the front axle structure (200) being simultaneously connected to the two supports (410), front thrust rod structures (420) being connected between the supports (410) and the frame, the front thrust rod structures (420) being also connected between the front axle structure (200) and the frame, and front airbag assemblies (430) being mounted on the supports (410); and a rear suspension assembly (500), comprising a pair of beam structures (510) which are symmetrically distributed on the left and right. The rear axle structure (300) is connected to the middle parts of the two beam structures (510) respectively; the middle part of each beam structure (510) is also connected to the frame by means of a rear thrust rod structure (520); rear airbag assemblies (530) are mounted at the two end parts of the beam structures (510) respectively; both the rear airbag assemblies (530) and the front airbag assemblies (30) are arranged as air spring structures; a rear vibration absorber structure (540) is connected to the side part of each rear airbag assembly (530); the rear vibration absorber structures (540) are connected to the frame; and a rear stabilizer bar structure (550) is also connected between the two beam structures (510). The suspension structure of the tram has the advantages of good vibration absorbing effect and good stability.\nC: A pneumatic mat device, comprising a controller and at least one undulating assembly unit. A surface of the undulating assembly unit can alternate between undulation states. The undulating assembly unit comprises at least one first air bag (1), at least one second air bag (2), a first air pump (A), and a second air pump (B). The controller controls the first air pump (A) and the second air pump (B) to operate alternately. When the first air pump (A) is operating, air is drawn from the inflated second air bag (2) to inflate the first air bag (1) to be inflated, such that the first air bag (1) and the second air bag (2) are in a first undulation state during an operation period of the first air pump (A). When the second air pump (B) is operating, air is drawn from the inflated first air bag (1) to inflate the second air bag (2) to be inflated, such that the first air bag (1) and the second air bag (2) are in a second undulation state during an operation period of the second air pump (B). Alternate operations of the first air pump (A) and the second air pump (B) enable the first air bag (1) and the second air bag (2) to undulate alternately, such that the surface of the undulating assembly alternates between the undulation states.\nD: A cover handling tool and a cover assembly structure. The cover handling tool comprises: a first airbag part (10), a second airbag part (20), and an airflow passage structure (30) connecting the first airbag part (10) and the second airbag part (20). By means of the airflow passage structure, an internal space of the first airbag part (10) communicates with an internal space of the second airbag part (20). When the second airbag part (20) is squeezed, the volume of the first airbag part (10) is larger than that of an insertion space; when a squeezing force applied to the second airbag part (20) ceases, the volume of the first airbag part is less than or equal to that of the insertion space. Airbag parts having changeable volumes are provided, and the structural feature of the airbag parts enables a container to be connected to or separated from a cover without requiring a finger of a user to come into direct contact with the cover, thereby preventing substances inside the container engaging with the cover from being contaminated.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA suspension structure of a tram, comprising: a frame (100); a front axle structure (200); a rear axle structure (300); a front suspension assembly (400), comprising two supports (410) which are symmetrically distributed on the left and right, the front axle structure (200) being simultaneously connected to the two supports (410), front thrust rod structures (420) being connected between the supports (410) and the frame, the front thrust rod structures (420) being also connected between the front axle structure (200) and the frame, and front airbag assemblies (430) being mounted on the supports (410); and a rear suspension assembly (500), comprising a pair of beam structures (510) which are symmetrically distributed on the left and right. The rear axle structure (300) is connected to the middle parts of the two beam structures (510) respectively; the middle part of each beam structure (510) is also connected to the frame by means of a rear thrust rod structure (520); rear airbag assemblies (530) are mounted at the two end parts of the beam structures (510) respectively; both the rear airbag assemblies (530) and the front airbag assemblies (30) are arranged as air spring structures; a rear vibration absorber structure (540) is connected to the side part of each rear airbag assembly (530); the rear vibration absorber structures (540) are connected to the frame; and a rear stabilizer bar structure (550) is also connected between the two beam structures (510). The suspension structure of the tram has the advantages of good vibration absorbing effect and good stability.\nA: Provided is a rear subframe assembly, comprising a main body of the rear subframe and positioning supports, wherein the main body of the rear subframe is in a bilateral symmetry structure. The main body of the rear subframe is provided with a car body connection part at its upper part and a battery pack protection board connection part at its lower part; it is further provided respectively with a stabilizer bar installation part, an upper control arm installation part and a lower control arm installation part, the positioning supports are respectively arranged at the left and right ends of the main body of the rear subframe, and each positioning support is configured with a positioning part that fits with an external positioning part.\nB: A suspension system testing apparatus comprises a base frame (1), a vehicle frame (5), an excitation device (4), and multiple sets of suspension cylinders (6). The excitation device (4) and the suspension cylinders (6) are all mounted on the base frame (1). The suspension system testing apparatus further comprises a stabilization support assembly (7) mounted on the base frame (1) and universally connected to the vehicle frame (5) via a first universal connector (721). The stabilization support assembly (7) further comprises an anti-twist stabilization rod (8) mounted on the vehicle frame (5) via a second universal connector (81). The anti-twist stabilization rod (8) is pivot-connected to the vehicle frame (1) and is a telescopic rod. A universal connection is provided at the join between a guide stabilization rod (72) of the stabilization support assembly (7) and the vehicle frame (5), and the guide stabilization rod (72) can move up and down along a guide sleeve/insertion hole of a stabilization support (71), thereby ensuring that the vehicle frame (5) moves up and down but does not move back and forth or left and right. In addition, the vehicle frame (5) can roll and pitch around a spherical hinge between the guide stabilization rod (72) and the vehicle frame (5).\nC: A hinge-type light self-unloading farm transport vehicle comprises a front beam (1), a back beam (2), a hinge connection assembly (3), a front axle (4), a clutch (5), a front suspension frame (6), a back suspension frame (7), steel panel and spring components (8), a generator (9), and a gearbox (10). The front beam (1) is located in front of the back beam (2), and is connected to the back beam (2) via the hinge connection assembly (3). The clutch (5) is located in a flywheel housing between the generator (9) and the gearbox (10). The front suspension frame (6) is installed on the front beam (1), and the back suspension frame (7) is installed on the back beam (2). The steel panel and spring components (8) are installed on both the front suspension frame (6) and the back suspension frame (7). The hinge connection assembly (3) comprises a hinge turning plate (31), a swallow tail plate (32), an inner rectangular board (33), a pressing cover (34), a turning pin shaft (35), a left-turn hydraulic cylinder (36), a right-turn hydraulic cylinder (37), a shaft cover (38), and a center positioning shaft (39). One end of the swallow tail plate (32) is installed at a tail portion of the front beam (1), and the other end thereof is installed on the hinge turning plate (31). A terminal portion of the turning pin shaft (35) is installed with the pressing cover (34). The inner rectangular board (33) is vertically installed at an inner side of an end of the front beam (1). Each of the left-turn hydraulic cylinder (36) and the right-turn hydraulic cylinder (37) has one end installed at the hinge turning plate (31), and the other end installed on the inner rectangular board (33) via the turning pin shaft (35). The shaft cover (38) is installed at a central position of the hinge turning plate (31). One end of the center positioning shaft (39) is installed in the shaft cover (38), and the other end thereof is connected to the back beam (2). The hinge-type light self-unloading farm transport vehicle adopts a front-bridge dual-tire structure to ensure stability, has a reliable hinge assembly, and stable and reliable clutch and spring and steel plate on a suspension frame.\nD: Disclosed is an independent suspension system, comprising: a supporting arm (100); an upper cross arm (200) for pulling an upper portion of the supporting arm (100); a lower cross arm (300) for pulling a lower portion of the supporting arm (100); and an airbag damping support (400), the middle portion of which is arranged on the supporting arm (100), wherein the airbag damping support (400) is provided with a first airbag and a first damper on one side of the supporting arm (100), and the airbag damping support (400) is provided with a second airbag (500) and a second damper (700) on the other side of the supporting arm (100). By means of providing the airbag damping support (400), the first airbag and the second airbag (500) can be located on two sides of the supporting arm (100) so as to expand the safety distance from the first airbag and the second airbag (500) to wheels, such that the vertical motion of the vehicle can be prevented from interfering with the first airbag and the second airbag (500), and the sizes of the first airbag and the second airbag (500) are no longer limited, and the arrangement of the first airbag and the second airbag (500) enables the independent suspension system to bear a larger load. A vehicle using the suspension system is further provided.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn air vent mechanism without front blades and an air venting method thereof. The method comprises the following steps: 1. an initial airflow from an air vent passing through an airflow door (4) such that the airflow undergoes a first adjustment, the airflow door (4) adjusting the initial airflow to be directed upward or downward; 2. when the adjusted airflow passes through a rib structure (5.1), guiding the airflow towards an edge of a housing (2, 3); and 3. causing the guided airflow to move towards the inside of the housing (2, 3), the housing being arc-shaped or circular, such that the airflow is deflected off the housing (2, 3) to achieve a final air vent angle of the airflow. The method omits front blades while still permitting an airflow to be easily adjusted upward, downward, leftward or rightward, thereby avoiding the issue in which front blades become loose as a result of frequent oscillations, and preventing air speed and air volume from being affected by airflow-blocking of the front blades.\nA: A miniature fan comprising a housing and a support frame (2) used for supporting the housing, also comprising a regulating member (1) fitted with the support frame (2) and used for regulating wind direction. Because the regulating member (1) used for regulating the wind direction is arranged on the support frame (2), and the regulating member (1) is fitted with the support frame (2), the wind direction of the miniature fan can be regulated via the regulating member (1), thereby facilitating use for a user.\nB: An air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a housing (1), and a first fan (2), a heat exchanger (3), and a second fan (4) disposed in the housing (1); the housing (1) is provided with a first air port (11) and a second air port (12); the first fan (2), the heat exchanger (3), and the second fan (4) are sequentially disposed in a direction from the first air port (11) to the second air port (12). Air flows in two wind directions can both exchange heat with the heat exchanger, and different operating modes of the air conditioner indoor unit can be matched with the above different wind directions according to the characteristics of warm and cool air and the positions of the first air port and the second air port, i.e., matched with one wind direction during cooling and the other wind direction during heating; thus, better comfort effect and higher temperature adjustment efficiency can be provided during both cooling and heating; moreover, under the action of the wind force of the two fans, the air volume is great, the heat exchange efficiency is high, and the temperature adjustment efficiency is further improved, thereby greatly improving user experience.\nC: An air outlet structure, comprising a deflector rod assembly (5) and a front-row blade and a rear-row blade which are installed on a housing (1). One of the front-row blade and the rear-row blade is controlled by shifting the deflector rod assembly (5) up and down, and the other one of the front-row blade and the rear-row blade is controlled by rotating the deflector rod assembly (5). According to the air outlet structure, opening and closing the front-row blade and the rear-row blade are independently controlled by means of different actions of a deflector rod (53), preferably, opening and closing of an air door may also be independently controlled, for example, up-down rotation of horizontal blades of a front-row blade assembly is achieved by shifting the deflector rod assembly (5) up and down, left-right rotation of vertical blades of a rear-row blade assembly is achieved by rotating the deflector rod assembly (5), and opening and closing of the air door are achieved by plugging and unplugging the deflector rod assembly (5), such that mutual influence is avoided, and the compact arrangement of a space is achieved.\nD: An air swinging assembly, provided in an air duct of a bladeless fan, the air duct being in communication with an air outlet; the air swinging assembly comprises movable fins (3) located at one side of the air outlet, and the movable fins (3) are rotatably connected to the air duct by means of a main shaft (32); the movable fins (3) are synchronously driven by a driving assembly to swing up and down so as to adjust the swing angle of the movable fins (3); and air is discharged from the air outlet after the air direction is changed by the movable fins (3). A bladeless fan comprising the air swinging assembly. The bladeless fan has an air swinging function by means of adding the air swinging assembly, and expands an air blowing range.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vehicle interior air dehumidifying system, comprising a dehumidifying apparatus (10), an air quality monitoring apparatus (30), and a master controller (20). The air quality monitoring apparatus (30) is provided in the interior of a vehicle, electrically connected to the master controller (20), and used for monitoring a quality parameter of the air inside the vehicle, acquiring monitoring data, and transmitting the monitoring data to the master controller (20). The master controller (20) receives the monitoring data, generates, on the basis of the monitoring data, a control instruction, and transmits same to the dehumidifying apparatus (10). The dehumidifying apparatus (10) is provided in the interior of the vehicle, electrically connected to the master controller (20), and used for dehumidifying the air inside the vehicle on the basis of the control instruction received. The present system dehumidifies the air inside the vehicle via the dehumidifying apparatus when the air inside the vehicle is humid, thus providing a comfortable driving environment inside the vehicle.\nA: An electromagnetic radiation monitoring system for use within a vehicle, comprising an electromagnetic radiation monitoring device (20), a prompting device (30) and a main controller (10), wherein the electromagnetic radiation monitoring device (20) is arranged inside an vehicle, electrically connected to the main controller (10), and used for monitoring electromagnetic radiation intensity within the vehicle, acquiring monitoring data and sending the monitoring data to the main controller (10), the main controller (10) is used for receiving the monitoring data, and sending prompting information to the prompting device (30) according to the monitoring data; the prompting device (30) is electrically connected to the main controller (10), and used for receiving the prompting information, and providing prompting according to the prompting information. The present invention allows a user to monitor the intensity of electromagnetic radiation in a vehicle, and be informed of the electromagnetic radiation intensity inside of the vehicle in a real-time manner.\nB: A vehicle negative ion air purifier, comprising a purifier main body (1), one side of a lower end of the purifier main body (1) having multiple air inlets (2), an air humidity detector (7), an air quality detector (8), a touch screen (9) and a master switch (10) are provided at an upper end of the air inlets (2), a control chip (11) is internally provided at one side of an upper end of the purifier main body (1), a support base (13) is internally provided at a bottom end of the purifier main body (1), a drive motor (15) is provided at an upper end of the support base (13), a fan (16) is provided at an upper end of the drive motor (15), a fan outlet (18) is provided at one side of the fan (16), one end of the fan outlet (18) is connected to a humidifier (19), a negative ion generator (20) is provided at two sides of the humidifier (19), an air outlet (21) is provided at one side of the humidifier (19), one end of the air outlet (21) being connected to an essential oil aromatherapy box (22), and a bottom end of a support frame (23) is provided with a suction cup (26), used to fix the purifier. The present purifier not only can purify air, but also can adjust degree of air humidity, decreasing passenger fatigue, and is stably mounted in a vehicle.\nC: Disclosed is an automobile display system (100), comprising an automobile interior control circuit (10) and a display device (20) electrically connected to the automobile interior control circuit (10), wherein the display device (20) comprises a first display screen (210) provided in the middle of a steering wheel (200), and the automobile interior control circuit (10) controls a display interface of the first display screen (210) so same maintains a horizontal display state. With the display device (20) being provided on the steering wheel (200) and being able to, when the steering wheel (200) is rotated, keep the display interface of the display device (20) in a display state with a certain angle, such as the horizontal display state, the observation of a driver is facilitated.\nD: Provided is a health protection system for train occupants in a polluted environment in a train, comprising a basic data acquisition module, a train external air quality prediction module, a train internal air quality prediction module, and a ventilation strategy formulation module. The basic data obtaining module obtains basic data; the train external air quality prediction module predicts the external air quality of a train; the train internal air quality prediction module predicts the internal air quality of the train; the ventilation strategy formulation module formulates a ventilation strategy and protects the health of train occupants. Also provided is a method of the health protection system for train occupants in a polluted environment in a train. According to obtained train internal and external air quality data, train internal and external air quality data information is predicted and a ventilation strategy is formulated; therefore, the corresponding ventilation strategy can be formulated for the train internal and external air quality data, so as to protect the health of train occupants, and high reliability and high accuracy are achieved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA self-adaptive cabin air conditioning system, a control method therefor, and a mobile vehicle having the system. The mobile vehicle (3, 3', and 3") having the self-adaptive cabin air conditioning system comprises: a mobile vehicle body (31), accommodating at least one mobile vehicle cabin (33, 33', and 33"); and at least one self-adaptive cabin air conditioning system (1, 1', and 1"). The self-adaptive cabin air conditioning system further comprises: a temperature collecting device (11, 11', and 11"); a temperature control device (13, 13', and 13"); and a microprocessor (15 and 15") for receiving a temperature signal.\nA: An automatic displacement device for a movable vehicle. The movable vehicle is used for carrying at least one weight. The movable vehicle comprises a body. The automatic displacement device comprises: at least one weight fixer, used for carrying the weight; at least one actuator, disposed on the body, and mechanically connected to the weight fixer and used for moving the weight fixer; at least one stabilization controller, in signal connection with the actuator, and comprising at least one sensing assembly used for sensing the inclination state of the body and sending at least one inclination state signal; and at least one control assembly, used for computing the inclination state and driving the actuator to move the weight fixer so as to perform compensation according to the inclination state signal.\nB: A freely movable apparatus (3) and an ultrasonic apparatus. The freely movable apparatus (3) has a first moving element (33) and a second moving element (34). The first moving element (33) and the second moving element (34) are disposed to be rotatable on a support element (31). When a user applies a force on a connecting base (39) or connecting arms (35, 36), the positions of the first moving element (33) and the second moving element (34) on the support element (31) can be changed, such that the first moving element (33) and the second moving element (34) can rotate, according to the applied force, by different angles or move away from each other or move towards each other on the support element (31) The angles between the connecting arms (35, 36) and the connecting base (39) and between the connecting arms (35, 36) and the moving elements (33, 34) can vary according to the applied force, such that the connecting base (39) can move and rotate to multiple positions in a plane. The structure can realize free multidirectional movement in a horizontal plane and is simple, such that the compactness and linkage flexibility of an apparatus are improved.\nC: Disclosed is an intelligent in-vehicle air conditioning system. The intelligent in-vehicle air conditioning system comprises a vehicle body (1) and an in-vehicle air conditioner (2). An interior of the vehicle body (1) is provided with multiple air outlets (10) in communication with air outlets of the in-vehicle air conditioner (2) and arranged symmetrically on two sides of a top portion of the vehicle body (1). Bladeless fans (11) are provided on two sides of the interior of the vehicle body under the air outlets (10). The system further comprises a solar cell panel (12) on an upper end of the vehicle body (1), a control module (3) used to control operation of the in-vehicle air conditioner (2) and the bladeless fans (11), a flow speed detection module (4) used to detect an airflow speed in the vehicle body (1), a temperature detection module (5), a micro-processor (6) used to process data from the flow speed detection module (4) and the temperature detection module (5) and send a result to the control module (3), and a power supply switching module (7). The system rapidly distributes cool air by means of the bladeless fans (11), and increases the airflow speed in the vehicle to bring superior comfort. In addition, after the flow speed detection module (4) and the temperature detection module (5) perform detection, the micro-processor (6) processes the detected information and transmit a result to the control module (3) to perform intelligent adjustment on the in-vehicle air conditioner (2) and the bladeless fans (11), thus realizing a highly intelligent system.\nD: A floating apparatus (3) and an ultrasonic device. A first moving member (33) and a second moving member (34) are configured to reciprocate in an arc-shaped or circular trajectory on a support member (31). Meanwhile, both ends of lift arms (35, 36) are hingedly connected to moving members (33, 34) and a connection base (39), respectively. When a user applies force to the connection base (39) or the lift arms (35, 36), the positions of the first moving member (33) and the second moving member (34) on the support member (31) can be changed, so that the first moving member (33) and the second moving member (34) are distant from and get close to each other on the support member (31) according to the stress in the arc-shaped or circular trajectory. Meanwhile, the angle between the lift arms (35, 36) and the connection base (39), and the moving members (33, 34) can also be changed according to the stress, so that multi-position movement and rotation is achieved for the connection base (39) in a plane. Meanwhile, the lift arms (35, 36) have the lift function, so that the spatial floating in horizontal and vertical directions can be achieved by combining other components. The structure is more simplified while achieving multi-azimuth floating in horizontal and vertical directions, and improves the compactness of the apparatus, and the linkage flexibility is better.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a nut and lead screw type opening and closing mechanism for an automatic door, an automatic vehicle door, and a vehicle. The nut and lead screw type opening and closing mechanism for an automatic door comprises a driving device (10), a lead screw (20), a nut push block (30), and a push rod (40), wherein the driving device (10) is fixedly connected to a vehicle door (100), the lead screw (20) is rotatably mounted on the vehicle door (100), the nut push block (30) is sheathed on the lead screw (20), a first end of the push rod (40) is hinged to the nut push block (30), a second end of the push rod (40) is hinged to a vehicle body (200), and the driving device (10) drives the lead screw (20) to rotate so as to enable the nut push block (30) and the push rod (40) to move in a reciprocating linear manner along the lead screw (20), so that the push rod (40) drives the vehicle door (100) to open or close relative to the vehicle body (200).\nA: Provided is a deforming aircraft (100), comprising a fuselage (20) and a frame (30) connected onto the fuselage; the fuselage (20) comprises a drive mechanism (26); the frame (30) comprises a main support arm (31), a crossbar (33), and a helical power mechanism (34); the main support arm (31) is connected to the drive mechanism (26) of the fuselage (20); the crossbar (33) is connected to the main support arm (31); the helical power mechanism (34) is mounted on the crossbar (33); the drive mechanism (26) comprises a leadscrew (261), at least two nuts (262, 263) screwed onto the leadscrew (261), and a nut adapter (265) sleeved on one of said nuts; the at least two nuts (262, 263) are connected to each other; the main support arm (31) is connected to the nut adapter (265); thus the overall dynamic stiffness is increased, the dynamic stiffness of the deforming aircraft during both deformation and flight is satisfactory, flight performance is improved, and costs are reduced.\nB: Disclosed are an axial drive mechanism and an electromechanical device. The axial drive mechanism comprises a drive motor, a ballscrew mechanism, and a loading component. The drive motor comprises a motor shaft extending along a first direction. The ballscrew mechanism comprises a screw extending along the first direction, and a nut sleeved on the screw. The loading component is movably arranged along the first direction. One of the screw and the nut is disposed on the motor shaft to rotate with the motor shaft, and the other is fixedly connected to the loading component to drive the loading component to move along the first direction. On the one hand, the axial drive mechanism provided by the present invention can reduce the size of space occupied by the axial drive mechanism, which facilitates achieving the miniaturization of the axial drive mechanism; on the other hand, the axial drive mechanism can reduce the inertia of the axial drive mechanism to improve the driving accuracy.\nC: Provided are an automobile side door electric opening and closing device and an automobile, the opening and closing device comprises a gear box (1), a lead screw (2), a nut (3) and a driving unit (4), the driving unit (4) is connected with the gear box (1), the periphery of the lead screw (2) is sleeved with the nut (3), one end of the lead screw (2) is fixedly connected with a vehicle body, the other end of the lead screw (2) penetrates through the gear box (1), and the nut (3) on the periphery of the lead screw (2) is located in the gear box (1); a gear transmission mechanism is arranged in the gear box (1), the driving unit (4) is connected with the nut (3) through the gear transmission mechanism; the gear box (1) and the driving unit (4) are both installed in a vehicle door; the driving unit (4) drives the nut (3) to rotate through the gear transmission mechanism so as to drive the lead screw (2) to do front-back reciprocating motion, and electric opening or closing of the automobile side door is achieved.\nD: A linkage swing head structure, comprising: a base (1), a driving mechanism (2), and a main shaft (3). The driving mechanism (2) comprises: a power mechanism (2-1), a connecting rod mechanism (2-2), and a lead screw (2-3); a cutter (7) is fixed at one end of the main shaft (3), and the main shaft (3) is fixed at one end of the connecting rod mechanism (2-2); the end of the connecting rod mechanism (2-2) at which the main shaft (3) is fixed is sleeved on a support bearing (4); the connecting rod mechanism (2-2) can rotate around the support bearing (4); the support bearing (4) is fixed on the base (1); the other end of the connecting rod mechanism (2-2) is movably connected to the lead screw (2-3); an output end of the power mechanism (2-1) is connected to one end of the lead screw (2-3); the connecting rod mechanism (2-2) adjusts an rotation angle of the main shaft (3) by sliding on the lead screw (2-3). The driving mechanism is distant from the main shaft and has a small interference range to the main shaft; the main shaft can realize automatic continuous division and can also perform linkage machining of small cutting amount, and when the cutter rotates by the same angle, the size of the device is reduced; the structure is simple and manufacturing costs are low.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA driving device (100) for a vehicle sunroof, comprising a motor (10), a transmission mechanism connected to the motor (10), and an output shaft (30) that rotates when driven by the transmission mechanism. The periphery of the output end of the output shaft (30) is integrally provided with multiple teeth (31); the multiple teeth (31) are used to drive a sunroof to move back and forth; a through hole (50) running through the output shaft (30) in the axial direction is provided in the output shaft (30); the through hole (50) comprises a first recess hole (51), a middle hole (52), and a second recess hole (53) that are communicated in sequence; the first recess hole (51) is adjacent to the input end of the output shaft (30); the middle hole (52) is a non-circular hole; the second recess hole (53) is adjacent to the output end of the output shaft (30); the shapes and/or sizes of the second recess hole (53) and the middle hole (52) are different, and the lateral size of at least one of the first recess hole (51) and the second recess hole (53) is not less than the minimum lateral size of the middle hole (52); the output shaft (30) protrudes radially at a substantially central position to form an annular protrusion (54); the middle hole (52) is formed in the annular protrusion (54).\nA: Disclosed is a humanoid robot intelligent motor apparatus, comprising a tail cover (10), a shell (20), a first drive motor and deceleration gear set (30), a second drive motor and deceleration gear set (40), a first angle sensor (50), a second angle sensor (60) and a control circuit (70). The first drive motor and deceleration gear set (30) comprises a first motor (31) and a first deceleration mechanism. The first motor (31) is engaged with an input gear (32) of the first deceleration mechanism. An output shaft (33) of the first deceleration mechanism outputs a first rotary power. The first angle sensor (50) is arranged at an output shaft of the first drive motor and deceleration gear set (30), and is used for sensing the first rotary power output by the corresponding output shaft (33). The second drive motor and deceleration gear set (40) comprises a second motor (41) and a second deceleration mechanism. The second motor (41) is engaged with an input gear (42) of the second deceleration mechanism. An output shaft (43) of the second deceleration mechanism outputs a second rotary power. A second angle sensor (60) is arranged at an output shaft of the second drive motor and deceleration gear set (40), and is used for sensing the second rotary power output by the corresponding output shaft (43). The motor apparatus has the capability of providing two degrees of freedom.\nB: Disclosed is an electrically operated valve capable of quickly achieving reliable switching between multiple flow paths, the electrically operated valve comprising a driving mechanism, an executing mechanism and a valve body assembly, wherein the driving mechanism comprises a bushing (53) and an output shaft (51) located in the bushing (53), the executing mechanism comprises a valve stem (1) connected to the output shaft (51) and a valve core (2) connected to the valve stem (1), and the valve core (2) is provided with a first flow channel (21) and a second flow channel (24); the valve body assembly comprises a valve body (3) and a valve seat (4), the bushing (53) is fixed to the valve body assembly in a sealed manner and forms a space isolated from the outside, the output shaft (51) and a connecting portion between the valve stem (1) and the output shaft (51) are located in this space, the valve stem (1) is not connected to the outside, the valve body (3) has a cavity (31), four through holes (32) and a plug port (34), the through holes (32) and the plug port (34) are circumferentially distributed at intervals, the plug port (34) is provided between adjacent through holes (32), and the valve seat (4) is provided with communicating holes (41) in communication with the corresponding through holes (32); and the circumferentially adjacent through holes (32) are in communication in pairs by the flow channels of the valve core (2) respectively, and the vale stem (1) drives the valve core (2) to rotate so as to switch the two mutually communicating through holes (32) and cut off the two through holes (32) circumferentially adjacent to the plug port (34).\nC: A spur-type vehicle tire energy recovery assembly comprises a hub (1), a tire (2), an output shaft (3), a transmission mechanism (5), and multiple energy acquisition devices (4). The output shaft (3) is rotatably connected to the hub (1), and the two are coaxially disposed. The energy acquisition devices (4) comprise a first gear (41) rotatably connected to the hub (1), and a rack (42) capable of sliding in a radial direction of the hub (1). The first gear (41) meshes with the rack (42), and one end of the rack (42) abuts an inner wall of the tire (2). The transmission mechanism (5) comprises a planetary gear set and a second gear (51). The planetary gear set comprises an outer teeth ring (52), a planetary gear (53), a planetary carrier (54), and a sun gear (55). The sun gear (55) is connected to the output shaft (3). The planetary carrier (54) is fixedly connected to the hub (1). Gear teeth (521) are disposed at the outer circumference of the outer teeth ring (52). The gear teeth (521) mesh with the second gear (51). The second gear (51) is fixedly connected to the first gear (41), and the two are coaxially disposed. The first gear (41) and the rack (42) of the energy acquisition devices (4) mesh to convert linear motion of compression and deformation of the tire (2) into rotational motion of the first gear (41), and then power of the multiple energy acquisition devices (4) is transmitted to the output shaft (3) via the transmission mechanism (5), thereby completing energy recovery from deformation of a tire (2).\nD: A drive device, comprising a motor (10) and a gear box (20) connected to the motor. The gear box comprises a housing (30), a transmission mechanism (40) provided in the housing, and a cover plate (50) individually formed and assembled to the housing. The transmission mechanism comprises an output member (42). The output member at least partially protrudes from the top surface of the cover plate. A retaining wall (53) arranged opposite the output member is formed on the cover plate. A cable is arranged between the retaining wall and the output member, and is transmittingly engaged with the output member. Also disclosed is a vehicle sunroof.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are an embedded outer rotor electric motor direct-drive lawnmower drive wheel (9) and a lawnmower; the drive wheel (9) comprises a wheel side cover I (11), a wheel side cover II (12), and a drive wheel body assembled from a wheel body (2) and sandwiched between the wheel side cover I (11) and the wheel side cover II (12); the wheel side cover I (1), wheel side cover II (12), and wheel body (2) define a cavity (3); an outer rotor motor (4) is mounted within the cavity (3); the outer rotor part of said outer rotor motor (4) is fixedly arranged opposite the drive wheel body; the inner stator part of said outer rotor motor (4) has a fixed shaft (41) extending out of the wheel side cover I (11) to outside the drive wheel body; the wheel side cover I (11) is provided with a shaft bore I (111) used for causing the fixed shaft (41) to protrude outward. The drive wheel (9) has the outer rotor motor (4) mounted inside the drive wheel (9), and the outer rotor motor (4) directly drives the drive wheel (9) of the lawnmower, thus transmission is accurate and reliable, and the space inside the lawnmower is more reasonable.\nA: Disclosed is a lawn mowing machine, comprising a machine body (10) and a lawn mowing mechanism (20), wherein the machine body (10) comprises two driving wheels (131), two driven wheels (132), a power mechanism (12), and a machine frame (11); the power mechanism (12) comprises a power supply device (121) and two electric motors (122) connected to the power supply device (121); the power supply device (121) is arranged on the machine frame (11) and extends in the direction from a rear end part (112) to a front end part (111) of the machine frame (11); the electric motors (122) are symmetrically arranged on two sides of the rear end part (112) of the machine frame (11); each of the driving wheels (131) is correspondingly arranged on each of the electric motors (122) in a drivable manner; the driven wheels (132) are symmetrically arranged on two sides of the front end part (111) of the machine frame (11) correspondingly, thus allowing the driving wheels (131) and the driven wheels (132) to match each other and so support the machine frame (11) to a preset height; and the lawn mowing mechanism (20) is arranged on the machine frame (11) and is kept in a lower space of the machine frame (11). By means of the arrangement, it can be guaranteed that the center of gravity of the lawn mowing machine is located in the middle of the lawn mowing machine by adjusting the balance weight of the lawn mowing machine, and the cruising ability of the lawn mowing machine is improved.\nB: A drive wheel set, comprising a common shaft (10) and at least two external rotor motors (20) installed on the common shaft. External rotors (22) of the external rotor motors form drive wheels of the drive wheel set. Also disclosed are a vertical-type wire storage frame, a swing-type wire storage frame, a guide wheel frame, a traction mechanism and a multi-path conveying mechanism using the present drive wheel set. The present drive wheel set is small in size, occupies less space, and is suitable for a situation wherein a plurality of motors need to be driven but sufficient space is lacking.\nC: A volute centrifugal fan provided with a permanent magnet brushless motor system, said fan comprising a volute (1), an outer rotor motor (2) mounted within the volute (1) via a support, and an impeller (3) externally sleeved on the outside of the outer rotor motor (2). The impeller (3) is located within the volute (1), the impeller (3) is connected to the outer rotor motor (2), the volute (1) consists of a spiral plate (4) and side plates (5) located on two sides of the spiral plate (4), air inlets (6) are arranged on the side plates (5) on the two sides, one side of the volute (1) is provided with an air outlet (7), a central position of the air outlet (7) is a horizontal plane (8), an opening (9) is arranged on a portion of the spiral plate (4) located above the horizontal plane (8), a bridge arch-type heat sink (10) matched with the opening (9) is mounted at the position thereof, heat dissipation ribs (15) of the bridge arch-type heat sink (10) are sunk via the opening (9) into air passages (16) formed between the volute (1) and the impeller (3), and the bridge arch-type heat sink (10) is closely fitted with a surface of the spiral plate (4). The volute centrifugal fan provided with the permanent magnet brushless motor system changes a heat dissipation effect of a driver in step with changes to a centrifugal fan load, the bigger the load, the better the heat dissipation effect of the driver, thereby ensuring that the driver is in a low temperature operating state, increasing the operational efficiency of the driver, and extending the service life of the driver.\nD: Disclosed is a fan, comprising a volute (1), a wind wheel (2), an external rotor motor (3), and a mounting support (4), wherein the centre of the volute (1) is provided with a cavity (10), the two sides of the volute (1) are respectively provided with an air inlet (11), moreover, the volute is provided with an air outlet (12), both the air inlets (11) and the air outlet (12) are in communication with the cavity (10); the wind wheel (2) is located inside the cavity (10); the external rotor motor (3) is mounted outside the volute (1) and at the air inlets (11) of the cavity (10) via the mounting support (4), a shaft extension end (30) of the external rotor motor (3) extends into the cavity (10) to connect to the wind wheel (2), and the external rotor motor (3) and the wind wheel (2) are respectively located on both sides of the mounting support (4). The fan is simple in structure and has good stability.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA wheel-track magnetic suspension vehicle system comprises a U-shaped channel and a magnetically-suspended vehicle therein. Arranged at the bottom of the U-shaped channel are two permanent magnet roadbeds (8, 22) and one wheel roadbed (20). Provided on the two permanent magnet roadbeds (8, 22) is a permanent magnet A (7, 21); the magnetically-suspended vehicle comprises a compartment body, a chassis, a front drive wheel (4), and a rear drive wheel. Two sides of the chassis are provided with a permanent magnet B (6, 19). Permanent magnet B (6, 19) and permanent magnet A (7, 21) are vertically aligned and have the same polarity. The front drive wheel (4) and rear drive wheel are arranged on the wheel roadbed (20). The two sides of the top part of the U-shaped channel are equipped with power supply line banks (2, 15). The two sides of the compartment body are equipped with power pickup cables (1, 14). Said power pickup cables (1, 14) contact the power supply line banks (2, 15) and provide power to the magnetically-suspended vehicle. The invention also comprises the application of the wheel-track magnetic suspension vehicle system.\nA: Disclosed are a stiffness gain mechanism (23) for a magnetic suspension bearing (20), a magnetic suspension bearing (20) comprising the stiffness gain mechanism (23), and a blood pump. The magnetic suspension bearing (20) comprises a stator (21) with stator teeth (211) and a rotor (22) arranged in the stator (21). The stiffness gain mechanism (23) comprises: a rotor permanent magnet (231), a stator permanent magnet (232), and an axial dynamic body (233). The rotor permanent magnet (231) and the rotor (22) of the magnetic suspension bearing (20) form a rotor assembly, and the rotor assembly has an asymmetric structure relative to a main plane (P) of the rotor (22); and the stiffness gain mechanism (23) is configured such that the stator permanent magnet (232) produces a radial attraction on the rotor permanent magnet (231), the axial dynamic body (233) produces an axial repulsive force on the rotor permanent magnet (231), and the magnitude of the axial repulsive force is able to change with the change of the axial distance between the axial dynamic body (233) and the rotor permanent magnet (231). The stiffness gain mechanism (23) can increase the torsional stiffness of the rotor (22) of the magnetic suspension bearing (20) and contribute to the miniaturization of the magnetic suspension bearing (20).\nB: An electromagnetic levitation train track system and a levitation electromagnet (9), belonging to the field of railway transport, involve an economical and efficient high-speed electromagnetic levitation train track technical solution, characterized in that tracks (5) are arranged on two sides of a railbed (1) or a track beam, a magnetic levitation train (20) runs on the tracks, traction guide electromagnets (22) are horizontally arranged on support arms (19) on two sides of the magnetic levitation train, the magnetic pole directions of the traction guide electromagnets are horizontally arranged, linear electric motor stators (13) are horizontally arranged at the positions, corresponding to the traction guide electromagnets, of the tracks, each of the linear electric motor stators is composed of a stator coil (16) and a stator iron core (15), the magnetic pole directions of the stator iron cores are horizontally arranged, working faces of the traction guide electromagnets and working faces of the stator iron cores are arranged in parallel and spaced by a certain magnetic gap to form iron core linear electric motors, the levitation electromagnet is arranged at the bottom of the magnetic levitation train, and armature plates (6) are horizontally arranged at the positions, located above the levitation electromagnet, at the bottom of the tracks with a certain magnetic gap apart. The effects of simplified structure, good levitation stability, high levitation capacity and low electromagnetic resistance are achieved.\nC: Disclosed is an axial permanent magnetic suspension bearing having micro-friction or no friction of the pivot point, comprising a support bearing (4) provided on a shaft serving as vertical, and a permanent magnetic suspension bearing (3) provided on the vertical shaft. The permanent magnetic suspension bearing (3) comprises a stator pull-push magnet (31) provided on a stator (1) and a rotor pull-push magnet (32) correspondingly provided on a rotor (2) by means of a soft magnetic material base (322) and axially separated from the stator pull-push magnet (31) to form a pull-push magnetic circuit. The stator pull-push magnet (31) and the rotor pull-push magnet (32) are respectively composed of two or more than two annular permanent magnets provided as radially closely fitting and with magnetic poles alternating in the radial direction, and upper and lower annular permanent magnets correspondingly in the same radial position have the same magnetic strength and inverse polarity. The stator pull-push magnet (31) and the rotor pull-push magnet (32) are radially spaced from the surface of the vertical shaft near an annular surface of the annular permanent magnets of the vertical shaft that is near the vertical shaft. The present invention has small magnets, is good to manufacture, is good to install, and has a high radial restoring force, while the force of attraction is great and frictional force is reduced by 98%.\nD: A mixed-type magnetic levitation thrust bearing, the mixed-type magnetic levitation thrust bearing comprising a ring-shaped central iron core (1) and outer iron cores (2) disposed at two ends of the central iron core (1), an end of an outer iron core (2) facing the central iron core (1) being provided with a ring-shaped groove (3), each ring-shaped groove (3) having disposed therein an excitation winding, and the central iron core (1) having embedded therein a permanent magnet (4); the mixed-type magnetic levitation thrust bearing can decrease bearing dimensions, lowering production costs.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA voltage control method. A train traveling speed can be acquired; a target transformation ratio corresponding to the train traveling speed is determined according to correspondences between train traveling speeds and transformation ratios, the transformation ratio being a ratio of an input voltage to an output voltage; an input voltage is then transformed according to the target transformation ratio to obtain an output voltage, the output voltage being used for driving a train to travel. The correspondences between train traveling speeds and transformation ratios are obtained according to correspondences between train traveling speeds and train traction forces at different transformation ratios. By means of the method, the most suitable transformation ratio can be provided according to a traveling speed of a maglev train, thereby increasing the traction force of the maglev train and improving running efficiency.\nA: A vehicle braking method and device (200), and a train. The braking method comprises: obtaining the distance between a vehicle and a front vehicle (101); providing an alarm if the distance is smaller than or equal to a first threshold (102); receiving a first braking instruction triggered by a user, and braking the vehicle at a first preset deceleration according to the first braking instruction, wherein the first threshold is obtained according to the sum of a target idling stopping distance and an emergency braking distance, the target idling stopping distance is obtained according to at least one of a first idling stopping distance and a second idling stopping distance, the first idling stopping distance is the traveling distance of the vehicle in the process of obtaining the distance between the vehicle and the front vehicle, the second idling stopping distance is the traveling distance of the vehicle in the process of the user triggering the first braking instruction, and the emergency braking distance is the traveling distance for braking the vehicle at the first preset deceleration (103). The beneficial effects are that: a braking threshold is determined by considering the distance measuring capacity and the braking performance of a train, the rear-end collision risk with a front vehicle can be effectively reduced, and the running safety of the train is improved.\nB: A train speed limit control method and device. The train speed limit control method comprises: detecting whether instability occurs during travelling of a train (S201, S301, S401, S501); if it is detected that instability occurs during travelling of the train, braking the train to limit the train speed to a first speed for traveling (S202, S302, S402, S502). The train speed limit control method implements automatic speed limit control during travelling of a train. The application of the train speed limit control method to train travel control can reduce the labor intensity of the driver, and automatically and timely limit the train speed when instability occurs during traveling of the train, thereby effectively preventing train travel safety from being affected by the driver's negligence.\nC: A maglev train linear motor power supply circuit. Two sides of each levitation chassis are provided with linear motors. The linear motors on the same sides of levitation chassises on the same train section are connected to each other in series. The linear motors connected in series are divided into series units equal in amount. Series-parallel switch devices are disposed between the series units to achieve series-parallel switching of the series units. Also disclosed a power supply method for the maglev train linear motor power supply circuit. When a train starts to accelerate, the series-parallel switch devices are in a series position, and the series units operate in a series manner; when the train accelerates to a set speed, the series-parallel switch devices are in a parallel position, and the series units operate in parallel manner. The power supply circuit and the power supply method ensure both high-current tractive capacity for a train starting to accelerate and the requirement on high voltage of the linear motors when the train is in high-speed operation, and reduces the temperature rise of the linear motors.\nD: A train overspeed protection method and device, the method comprising: when emergency braking is triggered for a train, obtaining an initial speed limit location point for each speed limit region from among a preset number of speed limit regions, and obtaining a first speed limit value corresponding to each initial speed limit location point so as to obtain a plurality of first speed limit values (S11); obtaining a current traveling location point of the train and a corresponding second speed limit value, and obtaining a current traveling speed of the train (S12); determining a plurality of deceleration speeds of the current traveling speed relative to each first speed limit value, selecting a deceleration speed from among the plurality of deceleration speeds which satisfies preset conditions, and setting the initial speed limit location point corresponding to the deceleration speed which satisfies the preset conditions as a target speed limit location point (S13); determining an emergency braking speed on the basis of a relative deceleration speed of the second speed limit value relative to the first speed limit value corresponding to the target speed limit location point (S14); performing overspeed protection on the train according to the emergency braking speed (S15). The method may effectively improve the accuracy of emergency braking speed calculation, reduce the calculation cycle, improve the traveling safety and efficiency of trains, and improve travel experience for users.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vehicle-mounted refrigerator having an emergency starting function, comprising a refrigerator body (1). An anti-skid bottom plate (2) is fixedly mounted at the bottom of the refrigerator body (1), a movable cover plate (16) is movably mounted at the top of the refrigerator body (1), a fixed frame (7) is fixedly mounted on each of the left and right sides of the refrigerator body (1), a limiting rod (23) is fixedly mounted on each of the upper and lower sides of an inner cavity of each fixed frame (7), a buffer plate (20) is movably mounted between the two limiting rods (23), and telescopic rods (21) are fixedly mounted on the opposite sides of the left and right buffer plates (20).\nA: A detachable lifting and lowering apparatus for ocean investigation and method therefor. Said lifting and lowering apparatus comprises two bearing plates (1); a fixing plate (8) is each fixedly mounted on the sides of the two bearing plates (1) close to each other; a same mounting plate (7) is slidably mounted on the outer sides of the two fixing plates (8); a motor (6) is fixedly mounted on the top of the mounting plate (7); a screw rod (5) is fixedly mounted on an output shaft of the motor (6); a lifting and lowering plate (4) is mounted on the screw rod (5) in a threaded manner; a transmission plate (3) is each slidably mounted on two sides of the lifting and lowering plate (4); a vertical plate (2) is each fixedly mounted on the sides of the two transmission plates (3) away from each other; a first placement plate (20) is fixedly mounted on one side of one of the two vertical plates (2) and a second placement plate (21) is fixedly mounted on one side of the other vertical plate; and a same investigation instrument (22) is placed on the tops of the first placement plate (20) and the second placement plate (21). Said lifting and lowering apparatus facilitates the disassembly of investigation instruments, and can adapt to investigation instruments of different sizes.\nB: A lifting/lowering test platform and method for marine instruments and devices, the platform comprising a bottom plate (1). First side plates (2) are fixedly installed on two sides of the bottom plate (1); a first support plate (5) is slidably installed on each of the two first side plates (2); a second support plate (6) is fixedly installed on each of the two first support plates (5); a third support plate (7) is fixedly installed at the bottom of each of the two second support plates (6); a plurality of installation holes (8) are formed on both the two third support plates (7); electric push rods (9) are fixedly installed on two sides of the bottom plate (1); the output shafts of the two electric push rods (9) are respectively fixedly connected to the two second support plates (6); two second side plates (10) are symmetrically and fixedly installed on the top of the bottom plate (1); a top plate (11) is fixedly installed on the tops of the two second side plates (10); an operation plate (13) is slidably installed above the top plate (11); and two expansion plates (24) are symmetrically and slidably installed on the operation plate (13). The lifting/lowering test platform has a large operation area and high operation stability and is convenient to use.\nC: Disclosed is a solar powered refrigerator, comprising a refrigerator body, a top cover of the body, and refrigerator doors. The refrigerator body is provided with an extendable plate respectively on both sides, and the refrigerator doors and the extendable plates are provided with solar panels. When being used outdoors, the extendable plates on both sides can be pulled upwards into position via a rail, then rotated outwards 90 degrees such that the plates are parallel to the solar panels at the top and constitute therewith the largest light-absorbing area for power generation supplying sufficient power to the system. When not being used, the extendable plates on both sides can be rotated inwards 90 degrees and nestled closely to the body, and the solar panels can be hidden by being pulled downwards along the rail.\nD: Disclosed is an intelligent control industrial robot, comprising a base (1), wherein a supporting arm (2) is fixedly installed at the top of the base, a sliding arm (5) is installed on one side of the supporting arm in a sliding manner, a welding gun (7) is movably installed on the sliding arm, a cylindrical rod (9) is fixedly installed at the bottom of the sliding arm, a placement table (15) is fixedly installed at the top of the base, two sliding grooves (12) are formed in the top of the base, sliding plates (13) are installed in the two sliding grooves in a sliding manner, the two sliding plates are located on the two sides of the placement table respectively, clamping blocks (14) are fixedly installed on the sides, close to each other, of the two sliding plates, a groove (16) is formed in the top of the placement table, and two clamping plates (17) are installed in the groove in a sliding manner. In the intelligent control industrial robot, a workpiece is clamped and fixed all around by means of the two clamping blocks and the two clamping plates, such that the welding stability of the workpiece is improved; moreover, different positions of the workpiece can be welded by adjusting the position of a welding gun; and the intelligent control industrial robot is simple in terms of structure, and is convenient to use.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn actuator (100) for adjusting a display terminal (500), and a vehicle (800). The actuator (100) comprises: a housing (10), a mounting unit (20), a driving unit (40), and a clutch unit (30). The display terminal (500) is mounted on the mounting unit (20), one end of the mounting unit (20) being inserted into an inner space of the housing (10), the clutch unit (30) is provided between the mounting unit (20) and the housing (10), and the driving unit (40) is provided on the housing (10) and is connected to the mounting unit (20), so as to drive the mounting unit (20) to move.\nA: Disclosed is an execution mechanism (100) for adjusting a display terminal, comprising: a power source (75a), and a driving mechanism connected to the power source (75a), wherein the driving mechanism is connected to a display terminal (1) to drive the display terminal (1) to eccentrically rotate, and the center of the display terminal (1) deviates from the initial center of the display terminal (1) during the process of rotating. The driving mechanism comprises a rotating shaft (79), the axis of an output end of the rotating shaft (79) not coinciding with the axis of an input end of the rotating shaft (79), and further comprises a sliding mechanism (3) and a rotating mechanism (7), the sliding mechanism (3) being connected to the display terminal (1). The power source is used to drive the display terminal (1) to rotate by means of the rotating mechanism (7), and the sliding mechanism (3) moves along with the rotation of the display terminal (1) so as to move the display terminal (1). Further disclosed are a display terminal assembly comprising an execution mechanism (100), and a vehicle (1000).\nB: A bicycle driving system (10), comprising: a drive unit (15), which comprises a housing, a motor unit (20) accommodated within the housing, and a first-stage deceleration unit (30), the motor unit being provided with a stator (21), a rotor (22) and an output shaft of the motor unit, the first-stage deceleration unit being provided with an input part and an output part, and the input part being connected to the output shaft of the motor unit; a mounting unit (50), which is configured to fix and hold the drive unit to a bicycle body (70); and a second-stage deceleration unit (40), which is detachably mounted on the first-stage deceleration unit at the exterior of the drive unit and which is connected to a foot pedal assembly (80), so that the driving force from the output part of the first-stage deceleration unit is transmitted to a crankset (82) of the food pedal assembly. The drive unit, the mounting unit and the second-stage deceleration unit are each modularly assembled on a bicycle. The described driving system may be flexibly configured to meet the individual requirements of users.\nC: A liquid crystal display panel (2) and a liquid crystal display containing the liquid crystal display panel (2). The liquid crystal display panel comprises: a gate drive module (10), a display unit (20) and a plurality of COF encapsulation units (30a, 30b) arranged at one side of the display unit (20); an output leading wire (40) of the plurality of COF encapsulation units (30a, 30b) is connected to a gate leading wire (50) of the display unit (20); the plurality of COF encapsulation units (30a, 30b) are sequentially connected in series through a signal leading wire (60) and then are connected to the gate drive module (10); the gate drive module (10) provides a scanning signal for the display unit (20) through the plurality of COF encapsulation units (30a, 30b); a first insulation pattern layer (70a) is laid on the gate leading wire (50); a via hole structure (80) is arranged in the first insulation pattern layer (70a); and the output leading wire (40) is connected to the gate leading wire (50) by a metal leading wire (90) through the via hole structure (80), wherein the contact area of a first via hole structure (80a) connected to a previous COF encapsulation unit (30a) is less than that of a second via hole structure (80b) connected to a later COF encapsulation unit (30b).\nD: An in vitro diagnostic analysis system, and an optical detection apparatus. The optical detection apparatus comprises a lens module (10), a light source module (20), a detection module (30) and a driver. The lens module (10) comprises a first mounting unit (100), a dichroscope (200), an excitation sheet (300) and an emission sheet (400), wherein the dichroscope (200) and the excitation sheet (300) are arranged, spaced apart from each other, on the first mounting unit (100), and the dichroscope matches the excitation sheet (300) to form an excitation light path; and the dichroscope (200) and the emission sheet (400) are arranged, spaced apart from each other, on the first mounting unit (100), and the dichroscope matches the emission sheet (400) to form an emission light path. The light source module (20) comprises a second mounting unit (22) and a light-emitting member (24), wherein the light-emitting member (24) is arranged on the second mounting unit (22), and the light-emitting member (24) and the excitation sheet (300) are arranged spaced apart from each other. The detection module (30) comprises a third mounting unit (32) and a detection element (34), wherein the detection element (34) is arranged on the third mounting unit (32), and the detection element (34) and the emission sheet (400) are arranged spaced apart from each other. The driver is used for driving the first mounting unit (100) to move.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn automotive front seat overhead airbag (10) comprising a supporting air chamber (1) mounted on a roof of a vehicle and a protective gas chamber (2), wherein the supporting air chamber (1) is unfolded from the vehicle roof towards an instrument panel, the protective gas chamber (2) is in communication with the supporting air chamber (1), after the supporting air chamber (1) is unfolded, the protective air chamber (2) is unfolded from the supporting air chamber (1) towards a human body (100), a first protection space (3) is left between the supporting air chamber (1) and the protective air chamber (2) on the side facing the human body (100), and the first protection space (3) corresponds to the head of the human body and is used for protecting the head and the neck of the human body (100). An automobile comprising the vehicle roof and the instrument panel, and further comprising the automotive front seat overhead airbag (10), wherein the upper end of the supporting air chamber (1) is connected to a gas generator. Passenger injury can be avoided under child off-site operating conditions and no load operating conditions.\nA: An integral door seal having an auxiliary energy-saving structure, comprising an outer air chamber (201) arranged between the refrigeration appliance body (1) and the door body (3); the outer air chamber (201) and a magnetic strip air chamber (202) are connected, and said outer air chamber (201) and magnetic strip air chamber (202) are both connected to a supporting air chamber (205); the supporting air chamber (205) is connected with a small chamber (217) by means of a small-chamber support rib (209). Near the vertical gap between the appliance body (1) and the door body (3), the outer air chamber (201) is connected to an auxiliary air chamber (211) by means of a connecting rib (218); the auxiliary air chamber (211) is arranged between the corner (11) of the appliance body side beam and the corner (31) of a projecting portion of the door body (3). The supporting air chamber (205) is provided with a first supporting bend (2061) and a second supporting bend (2062), said two supporting bends self-adaptively deforming in response to pressure applied to the door seal, and thus compensating for the deformation caused by the difference between the gap between an appliance body (1) and a door body (3) and a theoretical value for same, and obviating cold escape, freezing condensation and similar problems.\nB: Provided in the present invention is a nerve monitoring endotracheal cannula, the endotracheal cannula comprising: an endotracheal guide tube; an annular balloon, used for sealing the gap between the endotracheal guide tube and the trachea of the patient, the annular balloon being disposed annularly on the outer wall of the endotracheal guide tube; a support balloon, used for positioning the endotracheal cannula, the support balloon being arranged on the side of the endotracheal guide tube facing the glottis, and the support balloon adapting to the shape of the glottis after inflation and expansion; and a first inflation assembly and a second inflation assembly for inflating the annular balloon and the support balloon respectively.\nC: Disclosed in the present invention is a built-in electric inflated and exhausted heat-insulating sun-screening device for an automobile, which comprises an air curtain (1) matched with the interior of the automobile; the outer surface of the air curtain is provided with a heat-insulating sun-screening layer (2); a position of the air curtain (1) close to the middle is downwards provided with a supporting air column (3); the supporting air column (3) is provided with an inflation and exhaust hole (4) which is connected with an inflation and exhaust pump (5); the supporting air column (3) is arranged in an accommodating box (6), so that the whole air curtain (1) and the supporting air column (3) are accommodated in the accommodating box (6) in the folding process. The inflation and exhaust pump (5) is arranged in the accommodating box (6) or outside the accommodating box (6), and has a battery structure or is connected with a cigar lighter jack to be charged. By the built-in structure, the device does not influence the beauty of the automobile during parking, and dust can not fall on the device. The device is convenient to support and accommodate, can well protect electronic elements in the automobile from being insolated for a long time so as not to shorten the service life of the electronic elements, and can also prevent harmful substances from releasing due to insolation of the interior trim parts, so that the health of a user is not influenced.\nD: An airbag, an airbag system, and an automobile. When in an uninflated state, the airbag is accommodated in an upper frame member of a front windshield. After being trigged, the airbag inflates vertically downward. The airbag in the inflated state has a main bag. The main bag has a drop-shaped longitudinal cross-section. Since the airbag does not occupy a space within a dashboard, a front passenger has a larger space, thereby enhancing comfort for the passenger. Moreover, the airbag can inflate quickly and thus exhibits good safety performance.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA self-driving method, comprises: acquiring the motion state of an obstacle within a preset range; respectively inputting the motion state of the obstacle into an artificial intelligence (AI) model and a potential energy function, and determining a first motion state and a second motion state of a vehicle, wherein the potential energy function indicates the possibility of collision between the obstacle and the vehicle by calculating a collision potential energy between the obstacle and the vehicle, wherein the greater the collision potential energy, the greater the possibility of collision, and the smaller the collision potential energy, the smaller the possibility of collision, the first motion state being the movement speed and the moving direction of the vehicle calculated on the basis of the AI model, and the second motion state being the movement speed and the moving direction of the vehicle calculated on the basis of a potential energy function model; and determining a target motion state of the vehicle on the basis of the first motion state and/or the second motion state, the target motion state comprising a target movement speed and a target moving direction of the vehicle. Said method improves the safety of adjusting the movement speed and the moving direction of a vehicle.\nA: An information display method and apparatus, and an electronic device and a computer storage medium. The method comprises: obtaining a motion state of a target vehicle in a virtual scene at the current moment, and a first operation for controlling the target vehicle to move in the virtual scene (S202); predicting a first motion trajectory of the target vehicle within a period of time after the current moment by combining the motion state of the target vehicle at the current moment and the first operation (S204), wherein the first motion trajectory comprises a motion line and the motion direction of the target vehicle within a period of time after the current moment; and displaying the first motion trajectory and a second motion trajectory, wherein the second motion trajectory is a motion trajectory of the target vehicle prior to the current moment, and the position where the first motion trajectory and the second motion trajectory meet is the position of the target vehicle at the target vehicle (S206).\nB: A determination method and device for a collision prediction of an autonomous vehicle. An obstacle and an autonomous vehicle are both regarded as a two-dimensional-level polygon with a protrusion. According to the traveling movement direction of the obstacle and the traveling movement direction of the autonomous vehicle, some points, at which a collision probably happens, on a polygonal edge are determined to perform corresponding obstacle predicted path planning and autonomous vehicle predicted path planning; and when it is determined that there is a point of intersection between each obstacle predicted path and each autonomous vehicle predicted path, according to an autonomous vehicle traveling distance, a set safety distance and the minimum distance, whether the autonomous vehicle collides with the obstacle is determined, the moment when the collision happens can be then calculated, and the specific position where the body of the autonomous vehicle undergoes a collision is accurately determined, such that the prediction of whether the autonomous vehicle collides with the obstacle is more accurate. The method is applicable to structured roads such as straight roads, curved roads and intersections, and unstructured roads, and there is no need to perform differentiated processing.\nC: Provided are a testing method and apparatus for an autonomous vehicle, which belong to the technical field of autonomous driving and can be used to test intelligent vehicles and autonomous vehicles. The testing method comprises: acquiring a target test case, wherein the target test case is used to indicate a first scenario element in a target virtual scenario, and the first scenario element comprises an initial motion state of a virtual test vehicle; acquiring a motion state of a test vehicle during an execution process of the target test case; converting the motion state of the test vehicle into a motion state of the virtual test vehicle according to a state conversion relationship; and evaluating the performance of the test vehicle according to the motion state of the virtual test vehicle. By means of the solution of the present application, the testing efficiency of an autonomous vehicle can be improved, such that the solution is applied to testing models of mass-produced vehicles.\nD: A vehicle rearview mirror control method and apparatus, and an electronic device and a storage medium. The method comprises: when a vehicle is in a first motion state, acquiring location information of an obstacle; when the vehicle is in a second motion state, calculating the distance between a rearview mirror and the obstacle according to a real-time pose of the vehicle and the location information of the obstacle; and when the distance satisfies a first preset control condition, controlling the rearview mirror to fold.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method and an apparatus for human-machine interaction based on a panoramic surround view, the method comprising: step S101: receiving an operation for a panoramic surround image triggered by a user on a vehicle-mounted screen, and acquiring corresponding operation information, the operation information including at least one screen coordinate; step S102: on the basis of the operation information, displaying at least one driving function for the user to select; step S103: converting the at least one screen coordinate included in the operation information to obtain at least one corresponding world coordinate; and step S104: on the basis of the at least one world coordinate and the driving function selected by the user, controlling the vehicle to execute a corresponding driving function.\nA: Disclosed are an interactive operation method and apparatus based on a foldable terminal, which are applied to a terminal comprising a first screen and a second screen. The method comprises: acquiring a first measurement parameter of the first screen and a second measurement parameter of the second screen; determining a first event according to the first measurement parameter and/or the second measurement parameter; and determining, according to the first event, an interactive operation instruction corresponding to the first event, and executing the interactive operation instruction, wherein the first event is at least one action of a target screen. According to the method, by means of setting a series of actions of folding or unfolding at least one of the first screen and the second screen as the first event and establishing a correlation between the first event and the interactive operation instruction, when it is detected that at least one screen action triggers the first event, the interactive operation instruction corresponding to the first event is executed, thereby improving the operability of a folding screen, and improving the operation experience of a user.\nB: Disclosed are a method, an apparatus, and a system of remote control positioning with a light ray. The method comprises the following steps: receiving a visible light ray and key-pressing action information emitted by an emission end apparatus; obtaining screen image information comprising a cursor based on the key-pressing action information; parsing location coordinates on a screen image related to the cursor on the screen image based on the obtained screen image information; and performing an operation corresponding to an interface element at the parsed location coordinates of the cursor based on the location coordinates. By using the present invention, an interface element can be positioned by obtaining a screen image and based on a cursor on a screen, thus accurately and conveniently implementing operations and controls on complex interfaces.\nC: A self-driving interactive method, comprising: acquiring driving information of a self-driving vehicle (S501); displaying the driving information of the self-driving vehicle and vehicle control icons on a touch display interface of an interactive device (S401), wherein the vehicle control icons are used to represent a control program that controls the self-driving vehicle to implement preset functions; acquiring a touch operation of a user on the vehicle control icons (S402); according to the touch operation, generating a control instruction which corresponds to the touch operation and controls the self-driving vehicle to execute a control instruction of the control program, and sending the control instruction to the self-driving vehicle in order to control the self-driving vehicle to execute the control program so as to implement the preset functions (S403). In the present application, a touch display interface is provided at a position that facilitates a user operation to control the self-driving vehicle, which makes user operations convenient, and improves the efficiency in controlling the self-driving vehicle so as to increase safety during the operation of the self-driving vehicle. Also comprised are a self-driving device, a self-driving system and a computer-readable storage medium.\nD: An application running method and an electronic device, relating to the technical field of electronics, and capable of implementing the function of using motion sensing actions to control a game by means of mapping motion sensing actions to touch operations on a touch screen, enhancing the game experience. The method runs on an electronic device having at least one camera and a touch screen, the method comprising: the electronic device displays a first picture of the first application, the first application supporting the user controlling the first application by means of touch operations on the touch screen; the electronic device captures a first image of the user by means of the at least one camera, and recognises a first motion sensing action of the user in the first image; the electronic device determines first touch operation information corresponding to the first motion sensing action, the first touch operation information comprising the type of the first touch operation and the position of the first touch operation acting on the touch screen; and, in response to determining the first touch operation information corresponding to the first motion sensing action, the electronic device executes the operation corresponding to the first touch operation.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA single-station lightweight suspension railway transit system, the tracks whereof are suspended above ground by means of support columns and beams, and the system comprising: rail cars (9) suspended beneath the rails, a main rail (3) being provided for said rail cars (9) to run upon; suspended stop rails (5) provided parallel thereto for the rail cars (9) to stop upon, braking rails (4) for speed reduction which turn towards the stop rails (5), restart and acceleration rails (7) which return to the main rail (3), turnout and track-switching equipment, and rail-car elevator assemblies (10) for causing the rail cars (9) to be lowered and raised. The rail cars (9) are compact and lightweight and comprise smart terminals; also comprised are a smart car control system, and an overall scheduling control center.\nA: An personal hanging type double-rail and double-power automatic control light rail traffic system comprises a rail system, rail vehicle power systems, a rail vehicle traffic network control system, a rail vehicle compartment system, a rail vehicle power supply system, and a rail vehicle stop station system. The rail system is provided with two rail lines (28, 29), which are a left side straight rail line and a right side turning rail line that are in parallel but are different in top face level, and the two power systems of a left side straight rail drive device and a right side turning rail drive device are separately disposed above the two rails. A relative distance between the turning drive device and the turning rail is changed by using a lifting device, and meanwhile, under the effect of a change of the relative level between the straight rail and the turning rail, switching of a rail vehicle between the left side straight rail and the right side turning rail is implemented. A central computer control system is used in cooperation in the system, automatic control is achieved, and the rail vehicle autonomously travels.\nB: A single and double-decker variable recreational vehicle, comprising a regular carriage (1) and an upper carriage disposed above the regular carriage, the top panel (7) of the regular carriage serving as the bottom panel of the upper carriage. The upper carriage comprises a top roof (2), a top roof side skirt (3), a bottom panel upper skirt edge (9), a top roof lower skirt edge (10), and a foldable side fence (6). The recreational vehicle is also provided with a single and double-decker conversion system, which comprises a plurality of vertically disposed lifting support devices. The lifting support devices are each at least composed of a main body (4) and a lifting column (5) and are symmetrically distributed on both sides of the vehicle body of the recreational vehicle. The main body is fixedly connected to a side fence frame of the regular carriage. The lower end of the main body is connected to the vehicle body chassis of the regular carriage, and the upper end of the main body is connected to the top panel of the regular carriage. The lifting column is retractably inserted into the interior of the main body. The upper end of the lifting column is connected to the top roof of the upper carriage. The main body has an extending segment that protrudes from the bottom panel of the upper carriage. The functions of a house and a vehicle are fused by means of single and double-decker conversion, thus costs are low and said vehicle is economical.\nC: A railway side-tipping wagon comprises: an underframe assembly (1); a wagon assembly (2) installed at the top of the underframe assembly (1); a side door (3) hinged to one side of the wagon assembly (2); a side door opening/closing mechanism (4) for controlling opening and closing of the side door (3); a bogie (8) installed at the bottom of the underframe assembly (1); an air brake device (5) installed at the bottom of the underframe assembly (1) and capable of performing service braking on a wheel of the bogie (8); a parking brake device (6) installed at the bottom of the underframe assembly (1) and capable of performing parking braking on the wheel of the bogie (8); and a coupler cushioning device (9) installed at an end portion of the underframe assembly (1). The present invention further comprises a pneumatically-controlled hydraulic system (7) for controlling multiple side door opening/closing operation cylinders (4.1) of the side door opening/closing mechanism (4).\nD: Disclosed are a system for passengers to get on and off a vehicle without the vehicle needing to stop, and a method therefor. The system comprises an operating vehicle (100) and a platform (200), wherein the operating vehicle (100) comprises a vehicle body (110) and a vehicle carriage connection portion; the vehicle carriage connection portion is arranged on the vehicle body (110); and the platform (200) comprises a platform and carriage connection portion and a platform body. The system for passengers to get on and off a vehicle further comprises a plurality of separate-type carriages (300). The plurality of separate-type carriages (300) is divided into carriages for passengers to get on (310) and carriages for passengers to get off (320). The plurality of separate-type carriages (300) is transmitted between the vehicle carriage connection portion and the platform and carriage connection portion so that the actions of passengers getting on and off a vehicle can be completed without the vehicle needing to stop.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA pipe air pressure regulating device, relating to the technical field of transportation, the pipe air pressure regulating device comprising a pipe (4) and at least one air pressure regulating assembly disposed at an outter side of the pipe (4). The pipe (4) is provided with an inner cavity used for transportation of a transport tool (5). Each air pressure regulating assembly comprises a breather pipe (1), air inlets and air outlets of the breather pipes (1) communicate with the inner cavity of the pipe (4), and the breather pipes are used for adjusting the air pressure difference between the front and rear of the transport tool. The present device reduces the air pressure difference between a front portion and a rear portion of the transport tool in the process of the transport tool traveling in the pipe and reduces the travel resistance of the transport tool. At the same time, the symmetrical stress caused to the pipe wall by the pressure difference between the front portion and the back portion of the transport tool is reduced, thus having the effect of the pipe being protected. The present device may continuously extrude the residual air in the pipe by means of the traveling of the transport tool, so that the travel resistance of the transport tool is as low as possible.\nA: Disclosed is a portable power generation system. The entire power generation system has two transportation tools. A gas turbine, a power generator, an air inlet chamber, an exhaust collector, and an auxiliary system are provided on a first transportation tool. An air inlet assembly and an exhaust pipeline are provided as an integrated component on a second transportation tool. The second transportation tool further comprises at least four lifting devices used to separate the air inlet assembly and the exhaust pipeline from the second transportation tool and raise the same upward, such that a power generation transportation tool can move to a position directly below the air inlet assembly and the exhaust pipeline, and the lifting devices are then used to lower the air inlet assembly and the exhaust pipeline so as to connect the same with the air inlet chamber and the exhaust collector, respectively. The invention utilizes the weight of the air inlet assembly and the exhaust pipeline to achieve a seal at the joints.\nB: A protection apparatus for protecting a pipe bevel during transportation, storage and loading of pipes, comprising a protection hood and a fast opening connection member, the protection hood enveloping an end bevel of a pipe requiring protection, and the fast opening connection member being connected to the pipe in a sealed manner. The protection hood comprises a cover plate (1) and a connecting end on the protection hood, and the fast opening connection member comprises a connecting end fixed on an outer wall of the pipe, a washer (4) and a sealing component. The connecting end on the protection hood comprises an upper snap disc (2), the connecting end fixed on an outer wall of the pipe comprises a lower snap disc (5), and the sealing component comprises a snap hoop (3). Nitrogen charged inside the pipe can be held therein for drying and the pressure of the nitrogen charge is regulated by a pressure gauge inside a connecting pipe. The apparatus protects the bevel of a pipe to be welded during transportation, storage and loading without colliding and causing wear, and also prevents foreign substances entering the pipe and contaminating the pipe; is convenient to detach, reducing installation labour; and can be repeatedly detached and can be reused for pipes of the same diameter, saving on materials.\nC: An ejecting device, comprising a cabin (30) provided on a transportation tool, and a push-out part electrically connected to an ejection triggering circuit of the transportation tool. The push-out part comprises a push rod (31). The cabin (30) is a hollow cavity with one end opened. The push rod (31) is located within the cabin, and is used for performing ejection motion along a direction towards the opening of the cabin (30) after receiving a triggering signal of the ejection triggering circuit of the transportation tool, so as to eject an article to be dropped out of the transportation tool. The ejecting device can eject a to-be-dropped article in a transportation tool, so as to make the dropped article fall within a target drop area.\nD: A high-speed transportation device using a low-pressure tube comprises a travel tube (1), a travel guide rail (7), a conveyance structure (2), a control system, a braking system, and a drive system. The travel tube is an extending tube structure formed by a tube wall. The tube wall is provided with a one-way air flow window (3) capable of controlling an air flow direction. The drive system comprises a tube-filling travel driving structure (4) capable of traveling through the tube, a tube traveling and filling structure (26), and a tube-filling travel pressure-reducing structure. The conveyance structure (2) is a carriage structure. The tube-filling travel driving structure (4), the tube traveling and filling structure (26) and the conveyance structure (2) are flexibly and extendably connected.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn electrically controlled pneumatic plug door, comprising a sealing frame (1) and a door leaf assembly (2). A sealing surface (11) is provided at one side of the sealing frame (1). The door leaf assembly (2) is provided with a door panel (21) and a sealing member (22) arranged around the door panel (21). The sealing member (22) is provided with a first sealing lip (221) and a second sealing lip (222) protruding towards the sealing surface (11), the first sealing lip (221) and the second sealing lip (222) both sealedly fit the sealing surface (11), and a sealing slot (223) is formed between the first sealing lip (221) and the second sealing lip (222). Also disclosed is a rail vehicle comprising the electrically controlled pneumatic plug door. Use of the electrically controlled pneumatic plug door can solve the problem of poor sealing effect of a related electrically controlled pneumatic plug door.\nA: A seal assembly (800) for use with a scroll compressor and a scroll compressor (10) comprising the seal assembly (800), the scroll compressor (10) comprising a first member and a second member. The seal assembly (800) is disposed between the first member and the second member. The seal assembly (800) comprises: a seal member (820) having a first seal surface (822) abutting the first member and a second seal surface (824) abutting the second member; and a support member (840). The seal member (820) is provided with a seal member contact portion facing the first seal surface (822) and the second seal surface (824), and the support member (840) is provided with a support member contact portion engaging the seal member contact portion, resulting in the support member (840) being pushed towards the seal member (820) such that the seal member (820) abuts the first member and the second member. The seal assembly (800) can realize an axially flexible back pressure chamber with reliable sealing, while improving ease of assembly of associated seal components.\nB: A plug door for a coach comprises a fixed support (1), a movable support (2), a plug switching mechanism (3), a pivoted arm linkage mechanism (4), a drive mechanism (5), and a door panel (6). The plug switching mechanism (3), the pivoted arm linkage mechanism (4), and the drive mechanism (5) enable the plug movement of the door panel (6) of the coach. The plug door provides a good seal and moves stably and reliably.\nC: A channel sealing valve (22), a channel sealing mechanism (2) and a universal hysteroscope; the channel sealing valve (22) comprises: a first sealing member (221), having a first opening (2210); and a second sealing member (222), wherein the first sealing member (221) and the second sealing member (222) are stacked on each other, a protrusion portion (223) is formed by protruding from the position of the second sealing member (222) corresponding to the first opening (2210) in the direction away from the first sealing member (221), a buffer chamber (2230) is formed between the protrusion portion (223) of the second sealing member (222) and the first sealing member (221), and the protrusion portion (223) has a second opening (2220). The channel sealing mechanism (2) of the universal hysteroscope can well reduce the outflow of liquid from a working pipe (10) during passing of a working instrument (3), replacement of the working instrument (3), and a missing state of the working instrument (3), and maintain the liquid pressure in the working pipe (10) during use of the hysteroscope.\nD: A triangular rotor pump, comprising a housing, the housing comprising a side wall (100), and a first end cover (210) and a second end cover (220) respectively disposed at two ends of the side wall (100), and further comprising a triangular rotor (300) in the housing and an eccentric assembly (400) that drives the triangular rotor (300), the triangular rotor (300) comprising a rotor body (310) and a sealing member (320) disposed on the rotor body (310), the sealing member (320) being an elastic structural member, the rotor body (310) comprising three top ends (312) and side surfaces (311) respectively facing the first end cover (210) and the second end cover (220), the sealing member (320) comprising three first sealing portions (321) respectively disposed at the three top ends (312), each first sealing portion (321) abutting against the inner surface of the side wall (100) to form a radial sealing surface that blocks adjacent working cavities, the sealing member (320) further comprising two second sealing portions (322), two second sealing portions (322) being respectively disposed at two ends of the rotor body (310) in an axial direction, and the second sealing portions (322) respectively abutting against the first end cover (210) and the second end cover (220) to form an end surface sealing surface, and two ends of the first sealing portion (321) being respectively clearance-free fit with the two second sealing portions (322). Thus, radial sealing and end surface sealing are implemented.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA pilot and a train. The pilot comprises an energy absorption obstacle deflector (1); the energy absorption obstacle deflector (1) comprises a fixed housing (111), a sliding cover (112), and an energy absorption unit (12); the fixed housing (111) and the sliding cover (112) define a closed accommodation space (110); the sliding cover (112) is telescopically connected to the fixed housing (111) for deflecting an obstacle. The energy absorption unit (12) is located in the accommodation space (110); the sliding cover (112) is telescopically connected to the fixed housing (111); at the time of a collision, the sliding cover (112) can slide to be cushioned to avoid deformation of the sliding cover (112) due to a rigid collision, and during the sliding process, the sliding cover (112) enables the energy absorption unit (12) to abut against the sliding cover (112) to also absorb the damage energy transmitted by the sliding cover (112).\nA: The utility model relates to a sealed container, comprising a container and a container cover. The container cover comprises a cover body; the lower side of the cover body is provided with a movable base; elastic sealing members are provided between the movable base and the cover body; the elastic sealing members are connected to the cover body or the movable base; when the movable base is moved upward, the outer edges of the elastic sealing members are deformed outward, so that the elastic sealing members form sealing portions between the movable base and the container, to seal the container cover and the container; the upper side of the container cover is provided with an opening and closing mechanism for opening and closing the container cover; the opening and closing mechanism comprises a rotary switch and a sliding cover; during the rotation of the rotary switch, the movable base moves up and down, the outside of the rotary switch is provided with a sliding cover in a sliding connection manner; the sliding cover can slide out of the rotary switch. In this way, in the process of opening and closing the cover, the arm length of the rotating rotary switch can be increased by means of the sliding cover to form a labor-saving lever, so that it is more convenient and easier to open and close the container, and the container can also bear a greater pressure and achieve sealing of the container having a larger caliber.\nB: A film sticking apparatus, comprising a protective film (200), a base (110) and a sliding assembly; the protective film (200) comprises a positioning layer (210), a protective layer (220) and a release layer(230) which are sequentially stacked; one end of the positioning layer (210) protrudes out of the protective layer (220) to form a positioning end (211); one end of the release layer(230) protrudes out of the protective layer (220) to form a fixing end (231); the positioning end (211) and the fixing end (231) are located on the same side of the protective layer (220); the base (110) comprises an accommodating portion (112) for accommodating an electronic device and a positioning portion (111) located at one end of the accommodating portion (112); the positioning end (211) is fixedly connected to the positioning portion (111); the sliding assembly comprises a sliding member (130) and a dust sticking member (140); the sliding member (130) comprises a body (133) and a first sliding arm (131) and a second sliding arm (132) provided at two ends of the body (133); the first sliding arm (131) and the second sliding arm (132) are detachably and slidably connected to the base (110); the dust sticking member (140) is fixedly provided on the side of the body (133) facing the base (110); and the fixing end (231) is fixedly connected to the body (133). The present invention also relates to a film sticking method. The device and method can prevent impurities from falling on the protective layer (220) or the electronic device during film sticking, and solve the problem of unsmooth air exhaust during the process of sticking the protective film (200) to the screen of a mobile phone, thereby bringing better film sticking experience to a user.\nC: An electronic lock (10) used on a door. The electronic lock (10) comprises: a casing (100), a securing base (300), a lock cylinder (400), and a latching hook (500). The casing (100) comprises a casing body (110) and a sliding portion (120). The casing body (110) is connected to the sliding portion (120). The casing body (110) is provided with a first engagement hole (112). The securing base (300) is provided with a connection hole (310) and an accommodating hole (330). The connection hole (310) comprises a first portion (312) and a second portion (314). The first portion (312) communicates with the second portion (314). The sliding portion (120) can be placed within the first portion (312) to form a sliding connection with the securing base (300). The sliding portion (120) can be placed within the second portion (314) to form a rotational connection with the securing base (300). The securing base (300) is used for securing on a door. The lock cylinder (400) is provided on the securing base (300). The latching hook (500) is inserted through the accommodating hole (330). The latching hook (500) is movably connected to the lock cylinder (400). The latching hook (500) can be engagingly inserted into the first engagement hole (112).\nD: A collision energy absorption apparatus for rail vehicles, comprising a connection member (2), a base (3), and an energy-absorption splitting tube (1) provided on the outer side in the radial direction of the connection member (2). The inner wall and outer wall of the energy-absorption splitting tube (1) comprises one or more pairs of slits (11) having radial positions corresponding to each other. Each pair of slits (11) comprises an inner slit (111) and an outer slit (112). Each slit is a non-closed linear slit. The slit has a width of 0.05-0.8 mm. The sum of the depths of each pair of slits is less than the wall thickness of the energy-absorption splitting tube. The collision energy absorption apparatus for rail vehicles can obviously reduce the peak of an initial impact force; the effective stroke of the collision energy absorption apparatus can theoretically reach 100%. Moreover, the collision energy absorption apparatus can be easily mounted on either end of a rail vehicle to dissipate kinetic energy during a vehicle collision.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA folding joint (2) for a baby carriage. The folding joint (2) comprises: an upper rotary disk (23) and a lower rotary disk (24) each provided with a positioning hole; a rotary disk positioning outer cover (22) and a rotary disk positioning inner cover (21) each provided with a positioning hole, wherein the two positioning holes are corresponding to the positioning hole of the upper rotary disk (23) and that of the lower rotary disk (24); a first traction cable (25), a second traction cable (26), and a stopping member (27) capable of preventing the upper rotary disk (23) and the lower rotary disk (24) from rotating. The upper rotary disk (23) and the lower rotary disk (24) each have a P-shaped swing lever, wherein the P-shaped swing lever of the lower rotary disk (24) is fixedly connected to front feet tubes (3) of the baby carriage, and the P-shaped swing lever of the upper rotary disk (23) is fixedly connected to handle tubes (1) of the baby carriage. The rotary disk positioning inner cover (21) and the rotary disk positioning outer cover (22) are fixedly connected to rear feet tubes (4) of the baby carriage. The folding joint (2) can avoid the hands from being cut or clamped during folding of the baby carriage, so that the infant-care parents can use the baby carriage more comfortably.\nA: Disclosed is a large-joint structure of a baby carriage, the large-joint structure comprising a front foot assembly (1), a rear foot plate (2) and a handle (3). The front foot assembly (1) comprises a front foot plate (4) and a front foot housing (5), the handle (3) and the rear foot plate (2) are hinged to the front foot plate (4) correspondingly in the front foot housing (5), the handle (3) is provided with an inner cavity, the inner cavity of the handle (3) is provided with a first hinge (6), the first hinge (6) is provided with a handle latch hook (7), a first torsional spring (8) is arranged between the handle latch hook (7) and the inner cavity of the handle, and the handle latch hook (7) is fixedly connected to a pulling wire (9); a groove (41) is provided in an edge of a tail of the front foot plate (4), and the handle latch hook (7) is in movable clamping connection with the groove (41) of the front foot plate (4); a second hinge (10) is arranged on the front foot housing (5), the second hinge (10) is provided with a rear foot latch hook (11) and a rear foot latch hook seat (12), a second torsional spring (13) is arranged between the rear foot latch hook (11) and the rear foot latch hook seat (12), and a reset spring (14) is arranged between the rear foot latch hook seat (12) and the front foot housing (5); the rear foot latch hook (11) is in movable clamping connection with a limiting clamp groove (21) in the rear foot plate (2); and the front foot assembly (1) is synchronously locked with the handle (3) and the rear foot plate (2) and unfolded for linkage, such that the whole structure is compact, the manufacturing cost is effectively reduced, and the operation is more simple, convenient and quick.\nB: A poultry offal taking out apparatus. An apparatus body (1), a leg separating device (2), a chest positioner (3), a wing positioner (4) and a chest pressing device (5) are sequentially mounted on a left guide rod (10) and a right guide rod (11); a track wheel (6) is arranged between an upper rotary disc (7) and a lower rotary disc (8); the left guide rod and the right guide rod are arranged on the outer side of the track wheel in parallel and fixed to the upper rotary disc and the lower rotary disc; the track wheel is of a cone structure, and a plurality of irregular tracks (9) are arranged on the track wheel in the circumferential direction; the apparatus body, the leg separating device, the chest positioner, the wing positioner and the chest pressing device are driven by the upper rotary disc and the lower rotary disc to rotate circumferentially; the apparatus body, the leg separating device, the chest positioner, the wing positioner and the chest pressing device respectively move up and down and swing on the left guide rod and the right guide rod along the tracks on the static track wheel. The apparatus body comprises a fixed arm (16) and a swinging arm (17); a clamping finger (33) capable of freely moving is arranged at the end of the swinging arm; water and gas channels are formed in the fixed arm and the swinging arm. Frictional damage of a clamping apparatus to the liver (109) is reduced, and the gastroesophagus (105) can smoothly enter an opening of the clamping finger.\nC: Disclosed is a mechanical power outputting device, comprising a fitting seat (20), characterized in that a turntable (1) is hinged on the fitting seat (20), two U-shaped holes (2, 5) are provided on the turntable (1), a movable plate (14) is movably mounted in the U-shaped holes (2, 5), hooks (6, 11) are respectively provided on parts of the turntable (1) above or below the movable plate (14), a retractable arm (31) and balancers (15, 17) are mounted on the movable plate (14), a track guiding element (28) guiding the offset direction of the movable plate (14) is provided above the U-shaped holes (2, 5), the track guiding element (28) being mounted on the fitting seat (20), a snapping position (27) for controlling the rotation of the turntable (1) is further provided on the periphery of the turntable (1), and a snap (25) corresponding to the snapping position (27) is provided on the fitting seat (20). The retractable arm (31), the snap (25) and the track guiding element (28) are connected to a control box (26) to control the actions thereof. A protruding output shaft (24) is further provided on the turntable (1), and rollers (21, 22, 23) are respectively provided on the inner sides of upper and lower ends of the movable plate (14) and the balancers (15, 17). The mechanical power outputting device has a wide power range and a simple structure, can be driven in various manners and is convenient to use.\nD: An electric-mechanical dual-control household smart lock, comprising a mechanical clutch structure and a smart electric control structure; the mechanical clutch structure comprises a lock cylinder (11), a rebound spring bolt (12), a first round rotation plate (13) and a fixed seat (14), the rebound spring bolt (12) is fixed onto the fixed seat (14), the end portion of the rebound spring bolt (12) extends out from the fixed seat (14), an arc-shaped guide rail (121) fitted with the first round rotation plate (13) is provided on one surface of the rebound spring bolt (12), the lock cylinder (11) is connected to the rebound spring bolt (12) by means of the first round rotation plate (13), a key is inserted into the lock cylinder (11) to rotate and drives the first round rotation plate (13) to rotate, and the end portion of the rebound spring bolt (12) retracts into the fixed seat (14); the smart electric control structure comprises a PCB board (21), a motor (22), a telescopic set (23) and a second round rotation plate (24), the PCB board (21) is electrically connected to the motor (22), one end of the telescopic set (23) is fixedly connected to the motor (22) and the other end of the flexible set (23) is fixedly connected to the second round rotation plate (24), an arc-shaped guide rail (121) fitted with the second round rotation plate (24) is provided on the other surface of the rebound spring bolt (12), the telescopic set (23) drives the second round rotation plate (24) to rotate, and the end portion of the rebound spring bolt (12) retracts into the fixed seat (14).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA dynamic information warning apparatus for a bicycle comprises a signal output module (3) used for displaying dynamic information of the bicycle in real time, and a control module (2) in signal connection with the signal output module (3) directly or through a mobile terminal. The control module (2) is in signal connection with a collection module (1) used for collecting motion state information of the bicycle. In working, the collection module (1) detects acceleration changes of a running bicycle in real time; a control input circuit (21) picks up steering information by means of a control rod, a key or the like; a corresponding signal is sent to the signal output module (3) directly or through the mobile terminal; the signal output module (3) visually indicates, according to a signal output by the control module (2), information such as braking force, braking states, left turning and right turning by means of the brightness, colors and a flickering mode of a warning unit (31) or through pictures or characters displayed by the warning unit (31); and pedestrians or vehicles behind the bicycle can be reminded to avoid the bicycle, so that a rider is self-protected and the riding risk is reduced.\nA: Provided are a shift register, a gate driving circuit and a related display device, comprising: a first node control module (1); a second node control module (2); a third node control module (3); a first output module (4); and a second output module (5). The first node control module (1) adjusts an electrical potential at a first node (A). The second node control module (2) adjusts an electrical potential at a second node (B). The third node control module (3) adjusts an electrical potential at a third node (C). The first output module (4) adjusts an electrical potential at a driving signal output terminal (Output). The second output module (5) adjusts the electrical potential at the driving signal output terminal (Output). The shift register can control a duration of a scan signal outputted from the driving signal output terminal (Output) by changing only a duration of an inputted signal (Input) via cooperation of the above five modules, without needing to change clock signals (CK, CB), modify a circuit or change a related process. Therefore, complexity of a gate driving circuit and a related process can be reduced, thereby reducing costs.\nB: An automatic-induction warning apparatus of a bicycle comprises a signal warning apparatus (1), a bicycle running state signal inductor (2), and a corresponding power supply. The bicycle running state signal inductor (2) is in signal connection with the signal warning apparatus (1). The signal warning apparatus (1) comprises a light-emitting warning pattern apparatus (11), a power supply circuit (12), a control circuit board (13), and a storage battery (14). The light-emitting warning pattern apparatus (11), the power supply circuit (12) and the storage battery (14) are electrically connected to the control circuit board (13). The bicycle running state signal inductor (2) transmits a signal to the control circuit board (13). The control circuit board (13) controls the light-emitting warning pattern apparatus (11) to display a light-emitting warning pattern (15) of a bicycle running state. The warning apparatus has a safety warning effect, and accordingly, occurrence of a vehicle collision accident can be avoided; and the warning apparatus is simple in structure, good in warning effect, safe and reliable.\nC: A voice interactive recognition control system, comprising an audio signal acquisition module (1), an emotion recognition and determination module (2), a voice intelligent generation module (3), a voice output module (4), a control module (5) and a wireless transceiving module (6) connected to one another. The audio signal acquisition module (1) is used for acquiring and filtering external input voice information; the emotion recognition and determination module (2) is used for performing emotion recognition according to the external input voice information and determining a grammatical sense and an emotion category of the input voice; the voice intelligent generation module (3) is used for generating corresponding response voice information according to the grammatical sense and the emotion category of the input voice and sending the response voice information to the voice output module (4) or the control module (5); and the control module (5) is used for sending a control instruction to a corresponding intelligent device according to the received response voice information. Humanized control to the intelligent device is achieved by means of voice interaction.\nD: A shift register and a drive method therefor, a grid drive circuit and a display device. The shift register comprises an input module (1), an output module (2) and an output control module (3); the output module (2) comprises a first output unit (21) and a second output unit (22), wherein a first node (P) controls the first output unit (21), the first output unit (21) controls signal transmission between a second clock signal input end (CK2) and a signal output end (OUT-PUT), a second node (Q) controls the second output unit (22), and the second output unit (22) controls signal transmission between a high/low level signal input end (VGH/VGL) and the signal output end (OUT-PUT); the output control module (3) comprises a first control unit (31) and a second control unit (32), wherein the first control unit (31) controls the level of the first node (P), and the second control unit (32) controls the level of the second node (Q). According to the solution of the present disclosure, impact of the change in a clock signal associated with the output module on an output signal can be reduced, thus improving the output effect of the shift register.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA power-assisted bicycle with a mid-mounted motor, comprising a frame and a mid-mounted motor driving system mounted on the frame. The mid-mounted motor driving system comprises a motor (2), a controller (3), a battery (4), and a transmission system (5); the transmission system (5) is provided on the lower end of an inclined pipe (1); at least the motor (2) in the motor (2), the controller (3), and the battery (4) is provided in the inclined tube (1) of the frame; a driving unit of the motor (2) is in driving connection with the transmission system (5); the controller (3) is in signal connection with the motor (2); and the battery (4) is electrically connected to the motor (2) and the controller (3) to supply working power.\nA: Disclosed is an electric vehicle, comprising a chassis (1), a vehicle body and a power battery (71), wherein the chassis (1) comprises a frame system (2), a steering motor damping system (13) mounted on the frame system (2), a wheel system (12) connected to the steering motor damping system (13), a steering system (3) mounted on the frame system (2), and a braking system (4) mounted on the frame system (2); and the wheel system (12) comprises a left front wheel (121) using a hub motor, a left rear wheel (123) using a hub motor, a right front wheel (122) using a hub motor, and a right rear wheel (124) using a hub motor. Driving the wheels (121, 122, 123, 124) with the hub motors can omit a traditional mechanical transmission system, so as to simplify the structure of the chassis (1) and reduce the weight of the chassis (1). Compared with a traditional electric vehicle, the electrical vehicle has a lighter weight, smaller volume, reduced mechanical transmission loss, and improved electrical energy utilization rate.\nB: A hybrid drive system comprises a power battery device (1), a range extender system (2), and a motor driving system (3); the power battery device (1) is configured to supply power for the motor driving system (3); the range extender system (2) comprises an engine (201) and a generator (202); the generator (202) can be driven by the engine (201) to generate power so as to supply power for the motor driving system (3) and/or charge the power battery device (1); the hybrid drive system further comprises a vehicle control unit configured to control the engine (201) and/or the generator (202) of the range extender system (2) to generate driving force; the range extender system (2) is mechanically connected to a main coupling mechanism (4), so that the generated driving force is transmitted to a main driving axle (5) of the vehicle by means of the main coupling mechanism (4) to drive wheels on both sides of the axle (5) to rotate. Also provided is a vehicle having the hybrid drive system. According to the hybrid drive system and the vehicle having same, the vehicle control unit is utilized to control the engine (201) and/or the generator (202) of the range extender system (2) to generate driving force for different application conditions, and thus the economy of the vehicle can be effectively improved.\nC: Disclosed is a multi-functional children's scooter provided with a power device. The scooter comprises a frame (1), wheels (2), a handlebar (3) and a saddle (4). A controller (5), an electric motor (6) and a battery (7) are mounted in the middle of the frame (1). The battery (7) is mounted inside a tube body of the frame (1) and is connected to the controller (5). The handlebar (3) is provided with a brake handle and a power switch (8). The power switch (8) is connected to the controller (5). The wheels (2) comprise a front wheel and a rear wheel. One side of the rear wheel is provided with a driven gear, and a brake is mounted on the other side of the rear wheel. The brake is connected to the brake handle by means of a brake cable. A brake sensor (9) connected to the controller (5) is mounted in the brake. The electric motor (6) is connected to the controller (5). An electric motor shaft of the electric motor (6) is connected to a drive gear, and the drive gear is connected to the driven gear by means of a transmission chain. The scooter is additionally provided with a power device, can be used, instead of walking on a short trip, by children when playing independently, and can also be used instead of walking on a longer trip, e.g. going out with parents for a ride, and frees the feet of the children when the children ride the scooter, thereby increasing the fun for the children enjoying the scooter.\nD: A central drive device and a bicycle having said device. The central drive device comprises a housing, a motor (1) provided in the housing, a speed reduction mechanism, a central shaft (11) and a crankset device, the speed reduction mechanism being in transmission connection with the motor (1), the central shaft (11) being used for being connected to a pedal device and being rotatably provided in the housing, and said device further comprises a first clutch (5); the first clutch (5) has one end connected to an output end of the speed reduction mechanism, and the other end connected to the crankset device; the first clutch (5) comprises a transmission state and a release state; the crankset device is connected to the central shaft (11) by means of a second clutch (7), such that the central shaft (11) drives the crankset device to rotate; in a power-assist operating mode, the first clutch (5) enables transmission connection between the output end of the speed reduction mechanism and the crankset device, such that the output end transmits power to the crankset device; and in a non-power-assist operating mode, the first clutch (5) disconnects the power connection between the output end of the speed reduction mechanism and the crankset device. Such a central drive device can enable a person to pedal a bicycle in a lighter and less laborious manner.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA time difference pressure distribution and output device comprises a pressure chamber member (1), a time difference chamber member (2), a pressure transmission member (3), and a time difference transmission member (4). The pressure transmission member (3) is slidably disposed on the pressure chamber member (1) and is connected to a first actuator (B3). The time difference transmission member (4) is slidably disposed on the time difference chamber member (2) and is connected to a second actuator (B4). By means of pressure adjustment, the sliding time of the pressure transmission member (3) is ahead of the sliding time of the time difference transmission member (4), thereby allowing the two actuators (B3, B4) to successively act.\nA: Provided are an on-line temporary storage device and a control method and control apparatus therefor, and a transmission system. The on-line temporary storage device comprises: a bracket component (11), which is located in a perpendicular direction of an output sheet transmission platform (1C) and is parallel to the output sheet transmission platform (1C), and is used for temporarily storing target objects; and a transmission component (12), which is located on a side of a horizontal direction of the output sheet transmission platform (1C), and is used for putting the target objects into the bracket component (11) and taking the target objects out of the bracket component (11) and transmitting same to the output sheet transmission platform (1C). By means of the on-line temporary storage device and the control method, control apparatus and transmission system therefor, the damage rate during object transmission can be reduced, the transmission reliability is improved, multiple choices are added for a sheet taking mode, and the temporary storage quantity of the on-line temporary storage device can also be increased.\nB: A weight sensing device comprises at least one airbag (1) and an object sensing circuit (2). The airbag (1) comprises a space (11) therein. The space (11) is filled with a gas (12). The object sensing circuit (2) is arranged in the space (11) of the airbag (1). The object sensing circuit (2) comprises a microcontroller unit (21), a battery unit (22), a boost converter/voltage regulator loop unit (24), a gravity sensor unit (23), a pressure sensor unit (25), and a data transmission unit (27). When the airbag (1) is squeezed, the gravity sensor unit (23) is configured to sense a displacement and activate the battery unit (22) to provide a power supply to the object sensing circuit (2) for operation. Subsequently, the pressure sensor unit (25) is configured to sense that the space (11) of the airbag (1) is squeezed, generate a pressure change value accordingly, and transmit the pressure change value to the microcontroller unit (21) for further processing. The microcontroller unit (21) is configured to transmit the data via the data transmission unit (27) to a software built-in in electronic equipment (4), to enable to the software built-in in the electronic equipment (4) to receive a pressure change state when the airbag (1) receives a pressure. In doing so, a user holding the electronic equipment (4) can know a weight change state during a movement. The device only activates detection upon the gravity sensor unit (23) senses a displacement, and remains inactivated in a normal state, and is a low-power sensing device.\nC: A shelter structure is disclosed. An upper hub (1) is mounted on a guide tube (4). The guide tube (4) is telescopically disposed on a top portion (8) of a support tube (5), and is movable relative to the top portion (8) of the support tube (5). The guide tube (4), and a slider (3), a sleeve or a runner are connected to each other via a flexible traction member (6) to form a flexible traction mechanism. One end of the flexible traction member (6) is securely mounted on the slider (3), and the other end is securely mounted on a counterweight member (7). When the umbrella is to be closed, the slider (3) is moved downward along the support tube (5), and the sliding device pulls the flexible traction member (6) to lift the counterweight member (7) upwards. When an upper end of the counterweight member (7) is brought into contact with a lower end of the guide tube (4), the guide tube (4) is pushed upwards by the counterweight member (7), and the upper hub (1) is lifted. At the same time, the ribs (9a) pivotably connected to the upper hub (1) are driven to be lifted. In a second embodiment, a free pulley system is additionally provided for labor-saving purposes. The pulley system is composed of an additional push rod (11) telescopically disposed in the support tube (5) and the guide tube (4), and operable through a device such as an additional traction member. On closing of the umbrella, the push rod (11) is driven to move by the counterweight member (7), and the guide tube (4) is pushed upwards by the push rod (11).\nD: Disclosed are a hydraulic-type time-difference brake apparatus and an assembly thereof, wherein the hydraulic-type time-difference brake apparatus at least comprises a driving mechanism (1) disposed on a push block (10) at the uppermost portion of a chamber (20) of a housing (2). The driving mechanism (1) is activated, via a brake operation module (A1), to enable a set displacement of the push block (10), so as to drive a first piston (30) of a first pump mechanism (3) to be displaced in real time to output a first braking force to a rear wheel brake (50). Once the first piston (30) of the first pump mechanism (3) reaches a point within the time difference from the set displacement, a second piston (40) of a second pump mechanism (4) will be involved and pushed to move, so as to output a second braking force to a front wheel brake (51).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA lightweight foldable mobility scooter provided with front, rear, left and right lifting handles. The scooter comprises a scooter bottom plate (1), wherein two sides of the scooter bottom plate (1) are respectively provided with a scooter bottom plate lifting handle (2); the two scooter bottom plate lifting handles (2) are respectively located at two sides of the scooter bottom plate (1), and are positioned at the center of gravity after the mobility scooter is folded; and a scooter head lifting handle (3) is provided at a scooter head of the scooter bottom plate (1), and a tail portion of the scooter bottom plate (1) is provided with a scooter tail groove portion (4) used for cooperating with the scooter head lifting handle (3) for carrying.\nA: Disclosed is a chassis collision structure for a new energy vehicle, the chassis collision structure sequentially comprising, in the direction from the front of the vehicle to the rear of the vehicle, a front lower anti-collision beam assembly (1), a front subframe assembly (2), a front battery pack lower protection plate (3), a rear battery pack lower protection plate (6), and a rear subframe assembly (5), wherein the front lower anti-collision beam assembly (1) is connected to the front end of the front subframe assembly (2); the front battery pack lower protection plate (3) is connected to the bottom of the front subframe assembly (2); the rear battery pack lower protection plate (6) is connected to the bottom of the rear subframe assembly (5); and two ends of the front battery pack lower protection plate (3) and the rear battery pack lower protection plate (6) that are close to each other are respectively provided with a connection portion connected to a battery pack (8). According to the new energy vehicle chassis collision structure, a collision system is formed at the position of the chassis of the vehicle, and can guide the structure of the chassis to generate or increase deformation in a particular area so as to improve the collision performance of the chassis of the new energy vehicle.\nB: A foldable balance vehicle, comprising wheel mechanisms (1), a foot board mechanism (2), folding apparatuses, and balance devices (22), the foot board mechanism (2) is a sunken down-type foot board mechanism mounted at lower parts of the wheel mechanisms (1), two sides of a left foot board (23) and a right foot board (24) are both provided with balance devices (22), each wheel mechanism (1) is provided with a folding apparatus, each folding apparatus comprises a rotating folding mechanism and a locking mechanism, each locking mechanism comprises a locking mechanism mounted on the foot board mechanism (2), one end of each rotating folding mechanism is rotatably connected to a wheel mechanism (1), and the other end is rotatably connected to the foot board mechanism (2); the wheel mechanisms (1), by means of the rotating folding mechanisms, can be turned and folded to fit under the foot board mechanism (2). The sunken down-type foot board has a lower center of gravity, the folding apparatuses allow each wheel to be independently folded, which lowers folding difficulty, and when folding, only a relatively small amount of force is needed to fold the wheels; upon folding, the wheel fits close to the foot board, which reduces space needed for storage, and the wheels are balanced under the foot board, achieving more stable placement compared to opposingly folded-type balance vehicles.\nC: A locomotive structure for an electric multiple unit. In the locomotive structure for an electric multiple unit, the tail ends of a first side wall (1), a second side wall (2), and a roof (4) are all connected to a ring frame (5); a group of first main lengthwise beams (6) are provided at each of the intersection between the first side wall (1) and the roof (4) and the intersection between the second side wall (2) and the roof (4); each group of first main lengthwise beams (6) extend from a front wall (3) of the locomotive structure for an electric multiple unit to the ring frame (5); multiple second main lengthwise beams (7) arranged side by side are provided below a window on the first side wall (1) and below a window on the second side wall (2), separately; a second main lengthwise beam (7) is separately provided at a position at the lower part of the first side wall (1) for connection to the underbody and a position at the lower part of the second side wall (2) for connection to the underbody; each of the second main lengthwise beams (7) extends from the front wall (3) to the ring frame (5); multiple parallel vertical beams (8) are provided on each of the first side wall (1), the second side wall (2), and the roof (4), and the vertical beams (8) are perpendicular to the traveling direction of the electric multiple unit.\nD: A pet cage having a movable push-pull base plate comprises a pet cage frame (1), a movable base plate (2), side plates (3), and a top plate (4). The side plates (3) are respectively fixed to front, rear, left and right portions of the pet cage frame (1). The movable base plate (2) is movably disposed at a bottom portion of the pet cage frame (1). The top plate (4) is fixed to a top frame portion of the pet cage frame (1). Two side edges of the movable base plate (2) are provided with movable guide wheels (5). Two inner sides of a bottom frame portion of the pet cage frame (1) have guiding grooves fitting with the guide wheels (5). A lower portion of the movable base plate (2) is provided with a caster structure (6). The movable base plate (2) is freely movable forward and backward within the bottom frame portion of the pet cage frame by means of the guide wheels (5) and the guiding grooves.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a circular reciprocation conversion mechanism for a bicycle. The circular reciprocation conversion mechanism comprises two discs (1, 2) with opposite centers, and a transmission shaft (3) arranged between the two discs (1, 2) and parallel to the direction of a disc surface. The two discs (1, 2) are rotatably arranged on a connecting rod (5); a rotary handle (10, 20) is provided on each of the discs (1, 2); and raised teeth (6) are circumferentially distributed on an inner side surface of each of the discs (1, 2). The transmission shaft (3) is arranged in the direction of the diameter of the circular discs (1, 2) and is sleeved with a first gear (41) and a second gear (42). The first and the second gear (41, 42) are respectively connected to the transmission shaft (3) via two one-way transmission structures with opposite transmission directions, and the first and the second gear (41, 42) respectively engage, at front and back ends of the discs (1, 2), with the raised teeth (6) on the inner sides of the discs. A drive force is generated by converting the up-and-down reciprocating motion of pedals (11, 12) into the circumferential motion of the transmission shaft (3) so as to drive a bicycle to move forward. Conventional circumferential motion is replaced by reciprocating motion, such that unnecessary work can be reduced, thereby saving on the physical strength of a user.\nA: A method and device for converting rotary motion to reciprocating percussion motion. The device comprises a machine body (4), a travel portion (7), and a reciprocating percussion portion (5). The reciprocating percussion portion (5) comprises a percussion drive mechanism (2), a rocker arm (6), and a percussion head (1). The percussion drive mechanism (2) comprises a percussion power source member (11), a transmission component, and a crankshaft (10). The percussion power source member (11) comprises a motor, and the motor comprises a power output shaft (14). The transmission component comprises a power gear (13) and a transmission gear (12). The power gear (13) is mounted on the power output shaft (14). The transmission gear (12) drives the crankshaft (10). The transmission component comprises a transmission shaft. The power output shaft (14) is perpendicular to the rocker arm (6), and is parallel to the transmission shaft and the crankshaft (10) so that the transmission gear (12) drives the crankshaft (10) to convert rotary motion to reciprocating motion; or the power output shaft (14) is parallel to the rocker arm (6), the crankshaft (10) is driven to convert rotary motion to reciprocating motion after the power direction is changed by a power bevel gear and a transmission bevel gear. The crankshaft (10) drives the percussion head (1) to perform reciprocating percussion. The travel portion (7) drives the machine body to travel. The machine body (4) drives the reciprocating percussion portion (5) to move and work continuously. The device applies to the mining field or mechanical engineering field, and has advantages such as strong structural strength and a small amount of maintenance.\nB: A spur-type vehicle tire energy recovery assembly comprises a hub (1), a tire (2), an output shaft (3), a transmission mechanism (5), and multiple energy acquisition devices (4). The output shaft (3) is rotatably connected to the hub (1), and the two are coaxially disposed. The energy acquisition devices (4) comprise a first gear (41) rotatably connected to the hub (1), and a rack (42) capable of sliding in a radial direction of the hub (1). The first gear (41) meshes with the rack (42), and one end of the rack (42) abuts an inner wall of the tire (2). The transmission mechanism (5) comprises a planetary gear set and a second gear (51). The planetary gear set comprises an outer teeth ring (52), a planetary gear (53), a planetary carrier (54), and a sun gear (55). The sun gear (55) is connected to the output shaft (3). The planetary carrier (54) is fixedly connected to the hub (1). Gear teeth (521) are disposed at the outer circumference of the outer teeth ring (52). The gear teeth (521) mesh with the second gear (51). The second gear (51) is fixedly connected to the first gear (41), and the two are coaxially disposed. The first gear (41) and the rack (42) of the energy acquisition devices (4) mesh to convert linear motion of compression and deformation of the tire (2) into rotational motion of the first gear (41), and then power of the multiple energy acquisition devices (4) is transmitted to the output shaft (3) via the transmission mechanism (5), thereby completing energy recovery from deformation of a tire (2).\nC: Disclosed is a transmission device which comprises a cylinder (1), a piston (2), a rack (3), a first gear (5), a second gear (6), a first linkage gear (9), a first shaft (7), a second linkage gear (10) and a second shaft (8), wherein one end of the rack is fixedly connected to the piston; the piston is arranged inside the cylinder, and the other end of the rack is arranged outside the cylinder; one end of the first shaft is locked with the first gear, and the other end thereof is locked with the first linkage gear; one end of the second shaft is locked with the second gear, and the other end thereof is locked with the second linkage gear; the first linkage gear is meshed with the second linkage gear; the piston runs from an upper dead point to a lower dead point, and the rack only drives the first gear to rotate; and the piston runs from the lower dead point to the upper dead point, and the second gear drives the rack to move. The transmission device not only can realize that the reciprocating motion of the piston is converted into circumferential motion, but also can ensure no transmission dead angle in the whole conversion process, with small energy loss.\nD: A transportation means (1, 2) using a device (11, 21) for converting reciprocating rectilinear motion into single-direction circular motion. The transportation means (1, 2) comprises a power output mechanism (12) and two rotating shafts (13) that are oppositely disposed. A circular motion output mechanism (114) of the device (11, 21) for converting reciprocating rectilinear motion into single-direction circular motion is transmittingly connected to the power output mechanism (12). Each reciprocating rectilinear motion mechanism (112, 212) comprises an elongated pedal (1121, 2121). A bendable portion (11211) is disposed at the end of the elongated pedal (1121, 2121) distant from the device (11, 21) for converting a reciprocating rectilinear motion into a single-direction circular motion. The bendable portion (11211) is in rotational connection with the rotating shaft (13) by means of a torsional spring (131), so that when the bendable portion (11211) rotates around the corresponding rotating shaft (13), the end of the elongated pedal (1121, 2121) proximate to the device (11, 21) for converting reciprocating rectilinear motion into single-direction circular motion performs small-curvature near-rectilinear motion. The transportation means (1, 2) enables a rider to ride more comfortably with less effort.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA bidirectional transmission device for a bicycle, which comprises a large sprocket, a frame, an extended circular chain, a small sprocket I, a small sprocket II, a guide wheel, a ratchet device I and a ratchet device II, wherein the large sprocket rotates around a shaft on the frame, a segment of the extended circular chain is connected to the large sprocket and the top of the small sprocket I, a segment thereof is connected to the bottom of the large sprocket and the top of the small sprocket II, bypasses the small sprocket I and the small sprocket II and then is connected to the guide wheel, respectively, when the large sprocket rotates clockwise, it drives the small sprocket I to rotate clockwise, and the small sprocket I drives a rear wheel shaft to rotate forward through the ratchet device I, at the moment, the small sprocket II rotates counterclockwise and the ratchet device II rotates idly, when the large sprocket rotates counterclockwise, it drives the small sprocket II to rotate clockwise, and the small sprocket II drives the rear wheel shaft to rotate clockwise through the ratchet device, at the moment, the small sprocket I rotates counterclockwise and the ratchet device rotates idly, so that the rear wheel shaft rotates in one direction all the time.\nA: Disclosed is a rotary trash-cleaning machine having an electric motor not prone to damage. Annular tracks are arranged on two sides of a machine frame; an annular chain is arranged in each annular track; the top of each annular track is provided with an opening; a driving shaft is arranged at the opening; two gears are arranged on the driving shaft; collection shafts are arranged on the annular chain; and a drive assembly for driving the driving shaft to rotate is arranged at one end of the driving shaft. The drive assembly comprises a driven chain wheel located on the driving shaft, and an electric motor located on the machine frame, wherein a driving chain wheel is arranged on an output shaft of the electric motor; the driven chain wheel and the driving chain wheel are connected by means of a conveying chain; the output shaft of the electric motor and the driving chain wheel are connected by means of a connecting sleeve, and the connecting sleeve comprises a circular sleeve and a flange plate located at one end of the circular sleeve; and the driving chain wheel is connected to the flange plate by means of a shear pin. In the present utility model, a shear connection is added between the output shaft of the electric motor and the driving chain wheel, such that when the electric motor is overloaded, the shear pin cannot bear an output torque of the electric motor, the shear pin is broken, the driving chain wheel does not rotate any more, and the rotary trash-cleaning machine stops running.\nB: Provided is a manual hoist (1), comprising: a manual chain wheel (2), a manual chain (3) borne on the manual chain wheel (2) and used for driving the manual chain wheel (2), and a gear shaft (4) driven by the manual chain wheel (2). The manual hoist (1) further comprises: a first load-lifting chain wheel (5) sheathed on the gear shaft (4) and rotating synchronously with the gear shaft (4); a gear set having a driving gear (6) and a driven gear (7), the driving gear (6) being sheathed on the gear shaft (4) and rotating synchronously with the gear shaft (4), and the driven gear (7) driving the rotation of a driving shaft (8); a second load-lifting chain wheel (9) sheathed on the driving shaft (8) and rotating synchronously with the driving shaft (8); an endless load-lifting chain (10) which passes around the first load-lifting chain wheel (5) in a clockwise or counter-clockwise winding direction with a buffer section (11) being left, and then passes around the second load-lifting chain wheel (9) in a winding direction opposite to the first load-lifting chain wheel (5) with a load-bearing section (12) being left, and then goes back to the first load-lifting chain wheel (5). The present manual hoist significantly increases the speed at which heavy goods are lifted, and is especially suitable for use with heavy goods requiring long-distance lifting, thereby improving load-lifting efficiency of the manual hoist.\nC: Disclosed is a reverse clutch device for a bi-directionally driven bike, which device comprises a sprocket shift controller (1), an outer sprocket assembly (2) and an inner sprocket assembly (3). The sprocket shift controller comprises a four-linkage mechanism composed of a supporting frame (11), a pulling bar (12), a shifting plate (13) and a connecting plate (14) hinged successively to each other at the back of the bike tube, with the supporting frame mounted on the tube of the bike. The outer sprocket assembly is fixed on a middle shaft (4b), and a pin assembly (21) is provided on the outer sprocket assembly. The inner sprocket assembly is sheathed on the middle shaft, and is arranged parallel to the outer sprocket assembly, the inner sprocket assembly being provided with a shifting ring (7) connected to the shifting plate; a spring (5) is sheathed on the middle shaft and is located between the inner sprocket assembly and a five-way piece (4c) of the bike; the inner sprocket assembly is provided with a pin hole (31) at the position corresponding to the pin assembly; and the sides of the inner sprocket assembly and the outer sprocket assembly facing each other are respectively provided with a magnet block (6a) and an iron block (6b). By means of operating a handle (16) to move the pulling bar, the inner sprocket assembly moves along the middle shaft, inserting or disengaging the pin assembly into/from the pin hole.\nD: Provided are a driving device (2) suitable for a hand strap (1) at the lower end of escalator and an escalator, wherein the driving device (2) comprises a transition sprocket (11), a minor sprocket (14) arranged on a step sprocket (15) and a drive sprocket (9) arranged on a rotating wheel (16) at the end of a handrail, the transition sprocket (11), the minor sprocket (14) and the drive sprocket (9) are positioned on the same side of the escalator, a first drive chain (10) is arranged between the transition sprocket (11) and the drive sprocket (9), a second drive chain (12) is arranged between the transition sprocket (11) and the minor sprocket (14). The structural design of the driving device (2) is reasonable, and does not require extra power source, the driving device (2) is powered by the rotating step sprocket (15), the hand strap (1) has good synchronism and low fault rate.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a multi-anchor point mooring power installation anchor (1) and an installation method therefor, belonging to the technical field of ocean engineering. The multi-anchor point mooring power installation anchor (1) has a plurality of anchor eyes (103), can be simultaneously connected to a plurality of floating structures (10), and therefore, is very suitable for the fields of offshore wind turbines, marine pastures, offshore solar power generators, etc. arranged in groups or clusters. The design of the multi-anchor point mooring power installation anchor (1) helps to reduce or even eliminate the horizontal load acting on an anchor body (101), so that the load acting on the anchor body (101) is mainly vertical uplift load, optimizing the load mode of the anchor body (101) and helping to improve the bearing efficiency of the anchor body (101); and the design of normal wing plates (106) helps to reduce the resistance to a combined anchor (4). During the recovery of a booster (2), the normal wing plates (106) gradually extend out of the anchor body (101), increasing the normal load area of the multi-anchor point mooring power installation anchor (1), thereby significantly improving the bearing efficiency of the anchor. Therefore, the anchor has high installation efficiency, low cost, high bearing efficiency and good load mode, and can significantly reduce the installation cost of an anchoring foundation.\nA: The present invention relates to the technical field of marine renewable energy application, and particularly relates to a deep sea energy integration system based on a floating fan and a tidal current energy apparatus, being of a power generation structure having fans with a Spar platform as a foundation and integrating vertical axis tidal current energy, and comprising a Spar floating type wind power generation system and a tidal current energy power generation system. The Spar floating type wind power generation system of the present invention is simple in structure and high in stability, is suitable for middle and far sea areas, and is simple and convenient to mount and wide in application water depth. By combining an offshore wind power generation apparatus with the tidal current energy power generation apparatus to share the Spar platform, an anchor mooring line, a voltage transformation device, and a power transmission device, the power generation performance of the system is improved, the total power generation capacity is increased, marine renewable energy sources are effectively utilized, the investment costs are reduced, and the commercial application is accelerated. An external support of the tidal current energy power generation system of the present invention is of a cylindrical shape, thereby reducing wave loads, utilizing the tide current energy to the maximum extent, and moreover, ensuring the stability of the structure.\nB: A combined power anchor (100) having a folding anchor shank, comprising a plate-shaped anchor (1) having a folding anchor shank, a counterweight shaft (2), an extension rod (4), tail wings (5) and a recovery hole (6) in sequence from bottom to top. The plate-shaped anchor (1) is mainly composed of a wing plate (11), an anchor shank (12), a support (13) and a connecting rod (17); the counterweight shaft (2) is mainly composed of a semi-ellipsoidal front end (22), a cylindrical middle connecting section (21) and a truncated cone-shaped tapered tail end (23); the extension rod (4) is a cylindrical rod, and the cross-sectional dimension thereof is consistent with the minimum cross-sectional dimension of the tapered tail end of the counterweight shaft (2); the tail wings (5) are installed on the extension rod (4) near the tail end, and is located below the recovery hole (6); and the tail wings (5) include plate-shaped tail wings (5a) and arc-shaped tail wings (5b). The central axes of the plate-shaped anchor (1), the counterweight shaft (2) and the extension rod (4) of the folding anchor shrank are collinear. Further comprised is a method for controlling perpendicularity of the combined power anchor having the folding anchor shank during dropping in water. The present invention can increase the installation success rate of power anchors, and reduce the installation cost.\nC: A method and semisubmersible equipment for electricity generation with marine energy. The method is implemented by means of a separately constructed offshore platform or based on an existing offshore platform. Electricity generating equipment and an impeller (8) mechanically connected to the electricity generating equipment are mounted on the platform. Blades (12) of the impeller (8) are arranged perpendicular to the direction of a fluid flow along the water surface. The upper part of the impeller (8) is arranged above the sea surface; the lower part is submerged in seawater. The ocean pushes the impeller (8) to rotate, thereby driving the electricity generating equipment to generate electricity. When the blades (12) are rotating in the circumferential direction, the blades (12) underwater continuously work under a fluid thrust, and the blades (12) in the air are free from the effects of fluid impact resistance even while moving in the direction opposite that of the fluid flow, thus greatly reducing power loss, and increasing electricity generation efficiency. In addition, the rotation of the impeller (8) and the structural design of the blades (12) increase the thrust applied to a main shaft of the impeller (8), reduce water energy loss, and increase ocean energy conversion efficiency. Moreover, a housing (11) sleeved on the impeller (8) allows the screening of ocean winds of different directions and the reasonable utilization of the thrust of a same-direction wind to increase the electricity generating capacity of the electricity generating equipment.\nD: Provided is a protective device (100) for an offshore wind power base submarine cable, the protective device comprising: a connecting flange (101), an intermediate tube body (102), a tapered connecting tube (103), and a connector (104). The protective device (100) for the offshore wind power base submarine cable has a simple overall structure and does not need segmented mould making during manufacturing so the production cost is reduced. During installation and use, the length of the intermediate tube body (102) can be increased or decreased according to actual requirements, the overall installation is easy and the assembly work of the protective device (100) for the offshore wind power base submarine cable can be completed quickly and efficiently, thereby increasing the installation efficiency in actual use and reducing the duration and workload related to the installation work. Moreover, the protective device may be connected to a cable conduit on a wind power generator via the connecting flange (101) so as to achieve the protection of an output cable (300) of the wind power generator.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a jellyfish-type underwater detector and a detection method therefor. The underwater detector comprises a detection robot and a remote terminal. The detection robot comprises a housing (1), a bionic muscle, an elevator (9), a driving unit, a steering control unit (3), and a plurality of visual sensing units (2); and the remote terminal comprises a signal processing unit mounted in the housing (1) in a sealed manner, and a virtual reality headset in remote connection with the signal processing unit. The underwater detector moves agilely underwater and is highly reliable.\nA: An ultrasound underwater detection method for an unmanned aerial vehicle co-driven by air rotors (1 and 2) and a propeller (8). The ultrasound underwater detection method for the unmanned aerial vehicle co-driven by the air rotors (1 and 2) and the propeller (8) moves and balances the unmanned aerial vehicle by controlling the air rotors (1 and 2) above the unmanned aerial vehicle and the underwater propeller (8) below the stern, and comprises the following steps: receiving a control command to obtain the position of a detection fixed point; flying to the detection fixed point; using a posture instrument (12) to measure and record the posture of the unmanned aerial vehicle and compiling statistics on the direction of wave motion; controlling the unmanned aerial vehicle to orient perpendicular to the direction of wave motion; controlling the unmanned aerial vehicle to cruise around the detection fixed point; controlling an ultrasond microarray (10) to collect a parameter of an area of water, maintaining the posture of the unmanned aerial vehicle; if scan detection is required, changing the roll angle and the yaw angle of the unmanned aerial vehicle to perform detection; if the detection of the area of water at the fixed point is completed, then receiving a control command and flying to the next detection fixed point; and if not, then continuing flight and detection. The underwater detection method for the unmanned aerial vehicle co-driven by the air rotors (1 and 2) and the propeller (8) increases the detection speed and detection precision of the unmanned aerial vehicle.\nB: An underwater robot having a sonar detection device, comprising a robot body (1). A hollow container (2) is provided on each side of the robot body (1), connecting rods (7) are provided on a lower end of the robot body (1), hollow columns (3) are provided on the other end of the connecting rods (7), a camera (5) is provided on a front end of the robot body (1), a transparent protection cover (4) is provided outside the camera (5), a first sonar detector (6) is provided below the front end of the robot body (1), and a second sonar detector (8) is provided behind the first sonar detector (6). The first sonar detector (6) and the second sonar detector (8) can be configured to detect shoals of fish and obstacles in deep water, improving the accuracy and efficiency of working, and a winding-up device is provided to quickly retract the underwater robot, reducing the labor intensity of people, and improving the overall degree of automation; the underwater robot has a simple structure, is easy to operate, and has good functionality, greatly reducing the labor intensity of people, and providing strong practicability.\nC: An underground mineral product detector provided with a video capture unit comprises a cylindrical detector body (1). A circuit layer (2) and a power supply layer (3) are disposed in the detector body (1). The underground mineral product detector also comprises a detection circuit disposed in the circuit layer (2). The detection circuit comprises: a central processing unit; a Hall sensor (6), a radioisotope detector (7) and an ultrasonic sensor (8) that are in signal connection with the central processing unit; and a communication apparatus that is in signal connection with the central processing unit. The communication apparatus is used for wirelessly transmitting out detected information. A power supply module is disposed in the power supply layer (3), and supplies power to a detection circuit. A wired lug (4) is disposed on the top of the detector body (1). By means of a proper structure design and multi-probe detection, a function of conveniently detecting mineral product resources is implemented; the detector is simple and convenient and provides a portable device for underground detection.\nD: An LED fish-luring system with a visible light communication function. The system comprises an onboard LED fish-luring lamp, an underwater LED fish-luring lamp and an illumination control apparatus. The system further comprises an optical signal transmitter and an optical signal receiver. Signal transmitting and receiving are controlled by an LED visible light communication centre control apparatus. The optical signal transmitter comprises an information transmitting processing unit, a signal modulation circuit, an LED driving unit and the onboard LED fish-luring lamp. The optical signal receiver comprises a photoelectric detector, a signal demodulation circuit and an information receiving processing unit, and the information receiving processing unit of the optical signal receiver communicates with an information terminal. In the present invention, the brightness, the colour temperature, the chromaticity, a flicker frequency and a duty ratio of an LED fish-luring lamp are adjusted; the angle of an board LED fish-luring lamp is adjustable, and lifting adjustment may further be performed by means of a lifting apparatus; and the onboard LED fish-luring lamp has a visible light communication function, and an intra-ship communication local area network is formed and performs interconnection and intercommunication with a land command centre and other ships, so that the quantity of communication devices and communication costs can be reduced and a combination of illumination and communication can be implemented.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a collapsible storage fan, which pushes one end of a slide-limiting press plate to pass through a locking through-slot (52A) during normal usage of the fan by a locking mechanism (5), which comprises a downward pressing component (52), a limiting seat (53) and the slide-limiting press plate (51), so that the slide-limiting press plate is located at all the top faces of a movable front supporting seat (42), a fixed left and right supporting seat (41) and a movable rear supporting seat (43). Then, a pressure is applied to the slide-limiting press plate by the downward pressing component, so as to simultaneously abut the slide-limiting press plate against the movable front supporting seat, the fixed left and right supporting seat and the movable rear supporting seat. By using the present fan, the overall occupied space is greatly reduced, package and transportation are facilitated, transportation costs are saved and labour intensity is reduced. Furthermore, assembly procedure is effectively simplified, which facilitates the storage and the usage for the user, and is very safe and practical.\nA: An electric spindle and a machine tool, comprising: a machine body assembly (1), provided with an air inlet (11) and a stator (12); a spindle core assembly (2), supported on the machine body assembly (1) by means of an upper bearing assembly (4) and a lower bearing assembly (5), the spindle core assembly (2) comprising a spindle core (21), a rotor (22), a pull rod assembly (24), and a chuck (23); and a push rod (3), extending into a spindle core inner hole from the upper end of the spindle core (21); the upper bearing assembly (4) comprises an upper bearing seat (41), an upper bearing (42), and a bearing pre-tensioning component (43), a closed inner cavity (44) being defined inside the upper bearing seat (41), the spindle core inner hole being in communication with the inner cavity (44), the upper bearing (42) and the bearing pre-tensioning component (43) being arranged in the inner cavity (44), the bearing pre-tensioning component (43) being supported between the upper bearing (42) and the upper bearing seat (41), the upper bearing seat (41) being provided with a piston chamber (46), the piston chamber (46) being in communication with the air inlet (11), a floating component (47) being disposed in the piston chamber (46), the floating component (47) abutting the bearing pre-tensioning component (43), and the spindle core inner hole and/or the pull rod assembly (24) and/or the push rod (3) being provided with a helical structure, in order to discharge the air in the inner cavity (44) outside via the spindle core inner hole after the spindle core assembly (2) is rotated.\nB: A foldable electric fan, comprising a fan body (1), a turnover mechanism (2), a telescopic locking mechanism (3), and a base disc (4). The upper end of the base disc (4) is open and forms an accommodating space (41), and a mounting boss (42) is provided in the accommodating space (41); one end of the telescopic locking mechanism (3) is connected to the turnover mechanism (2), and the other end thereof is rotatably connected to the mounting boss (42); the fan body (1) is connected to the turnover mechanism (2), and the fan body (1) can be turned over and folded with respect to the telescopic locking mechanism (3); when the fan body (1) is stored, the fan body (1) can be folded on the end face of the upper end of the base disc (4) by means of the turnover mechanism (2) and the telescopic locking mechanism (3) while the turnover mechanism (2) and the telescopic locking mechanism (3) can be accommodated in the accommodating space (41). The fan is simple and compact in structure, small in size after being folded, space-saving, easy to store and convenient to carry.\nC: A valve disc limiting shaft assembly, and a valve disc structure and a valve comprising same. The valve disc limiting shaft assembly comprises: a valve disc limiting shaft (9); at least one support seat (4), said support seat (4) having a first mounting aperture (41) provided thereon, a horizontal through channel (43) that communicates with the first mounting aperture (41) being provided on a lateral surface of a side of the support seat (4) which faces the valve disc limiting shaft (9), and an end part of the valve disc limiting shaft (9) moving into the first mounting aperture (41) via the horizontal through channel (43); and a stopper (3), which is arranged at the end part of the valve disc limiting shaft (9), comprising a main body part and at least two oppositely mounted extending parts, said extending parts having a first state in which the projection thereof onto the valve disc limiting shaft (9) falls on the side of the support seat (4) which faces the valve disc limiting shaft (9), and a second state in which the projection thereof onto the valve disc limiting shaft (9) at least partially falls into the horizontal through channel (43). This structure decreases difficulty of installation, the structure of the assembly parts is simplified, manufacturing is simplified, and costs are lower.\nD: An adjustable intelligent digital display type device for positioning and punching an inclined hole in a sheet, comprising a base (1), a movable pressing plate (2), fixed pressing plates (3), an adjusting plate (4) and a supporting device (5). The base (1) is provided thereon with a cavity (11), an electric cylinder (14), a rack (13) and a first T-shaped sliding groove (12). Two stretching-out plates (28) are provided on the movable pressing plate (2), and a ratchet mechanism (21) is provided between the stretching-out plates (28) and is engaged with the rack (13). Two ends of the adjusting plate (4) are provided with arc plates (41), and the adjusting plate (4) is in sliding connection to the fixed pressing plates (3). The supporting device (5) comprises a first supporting plate (51) which has an arc structure, a second supporting plate (52) provided with a through hole (521), and a supporting rod (53). The present adjustable intelligent digital display type device for positioning and punching an inclined hole in a sheet has a reasonable structure, has the beneficial effects of the structure being simple, being convenient to use, having a high degree of intelligence, and universality being high, and effectively solves the problems of existing sheet hole punching equipment having low precision and being inconvenient for adjusting a punching angle.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vertical take-off and landing aircraft with tiltrotor power for use on land and in the air comprising: a body (3) equipped with a driving device, controlled wheels (8) for allowing the body to move on the ground, a front thruster (1) and a rear thruster (2) for controlling the flight of the body or the take-off and landing thereof, transmission support rods (5) provided on the two sides of the body, a first pivot shaft (9) laterally passing through the body, with the first pivot shaft connected with the transmission support rods on the two sides of the body; the front thruster is fixedly connected to the front ends of the transmission support rods, and the rear thruster is fixedly connected to the rear ends of the transmission support rods; and the central axes of the front and rear thrusters are perpendicular to the plane formed by the two transmission support rods. By controlling the rotation angles of the front and rear thrusters, the aircraft has the major basic functions of both vertical take-off and landing as well as horizontal flight, and achieves a simple conversion between driving on land and flying in the air. During flight, the body of the aircraft always remains in a horizontal state, so that the drivers and passengers feel comfortable and have a wide field of vision, facilitating safe driving.\nA: A foldable-wing flying automobile adopting a serial type pneumatic layout comprises an automobile body (1), wheels (2) installed on a lower part of the automobile body, main wings installed on two sides of the automobile body and capable of generating an upward lifting force, and a thruster (17) installed on the automobile body and capable of generating a thrusting force. Both front wings (3) and back wings (6) are the main wings with a large wing area and a long wingspread. When the wings of the flying automobile are spread, the front wings and the back wings form a longitudinal serial type pneumatic layout along the automobile body, and together generate the upward lifting force. When the wings of the flying automobile are retracted, the front wings are turned over, folded, and then received at the two sides of the automobile body, and the back wings are turned over, folded, and then received at the top of the automobile body or at the two sides of the automobile body. The wings and the automobile body are installed with solar cell panels (20) with a large area, so that the whole automobile becomes a large solar charger, thereby enhancing an endurance capability. In the present invention, based on the foregoing, a vertical takeoff and landing airplane automobile and a flying automobile for over-water, ground, and air traveling are further realized.\nB: Disclosed is a hand-held underwater aircraft, comprising a battery compartment (12) and propellers. A special design with the axis of the propellers being unparallel with the axis of the battery compartment is adopted, the unparallel included angles make the component forces generated by various propellers in the direction of motion of the non-underwater aircraft offset each other, and enable the underwater aircraft to maintain balanced and straight-forward motion. The design of unparallel axes of the propellers and the battery compartment (12) leads to a little power loss, but avoids larger power loss caused by the impact of water on the human body, thereby comprehensively improving the thrust of the underwater aircraft in use. The design of unparallel axes of the propellers and the battery compartment (12) leads to a little power loss, but avoids larger power loss caused by the impact of water on the human body, thereby comprehensively improving the thrust of the underwater aircraft in use. Moreover, the water does not strike on the user's face, thereby effectively preventing the user from inhaling water, making the user feel more comfortable and safer, and effectively improving the overall use experience.\nC: The present invention relates to a vertical take-off and landing aircraft, comprising a fuselage (1), a main wing, a main thrust apparatus (2) that can tilt between the horizontal position and the vertical position, a tilt apparatus that enables the main thrust apparatus to tilt, and an attitude control apparatus for controlling the flight attitude; the wing comprises a left wing and a right wing, and the main thrust apparatus uses a heat engine as the power apparatus; the invention is characterized in: the attitude control apparatus consists of at least two attitude-adjusting apparatuses (4), a power module (5), a speed adjustment module (9), and a flight control system (6); an attitude-adjusting apparatus consists of a motor (4a) and a propeller or a ducted fan (4b) that has a power connection with the motor; at least one attitude-adjusting apparatus is provided on the left wing, and at least one attitude-adjusting apparatus is provided on the right wing. The mechanical structure of the aircraft is thereby simplified, the reaction is more rapid and sensitive, and the operation is easier, thereby further stabilizing the aircraft attitude control.\nD: A handheld underwater flying vehicle, comprising a battery compartment (12) and propellers. The quantity of the propellers is at least two, and the propellers are symmetrically arranged on two sides of the battery compartment (12) and connected to the battery compartment (12). The axis of the propellers and the axis of the battery compartment (12) have a special non-parallel design. The angle of the non-parallelism causes the component forces produced by the propellers not in the movement direction of the underwater flying vehicle to cancel each other out, and causes the motion of the underwater flying vehicle to remain balanced, allowing for travel in a straight line. The non-parallel design of the propeller axes and the battery compartment (12) axis causes a very small power loss, but avoids a greater power loss caused by water flow striking a person's body, improving forward thrust of the underwater flying vehicle overall during use. Because water does not strike the user's face, the user is also prevented from choking on water, making the user more comfortable and safe, and improving the overall use experience.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA frame for an aircraft (100), and an aircraft (100). The frame comprises: a body (10) and a fixing assembly (20). The fixing assembly (20) is provided on the body (10). The fixing assembly (20) comprises a fixing frame (210) and a fastening frame (220) spaced apart from each other in a first direction. The fixing frame (210) has two first assembly slots (2120) spaced apart from each other in a second direction. Each first assembly slot (2120) is suitable for accommodating a first arm (901). The fastening frame (220) comprises two second assembly slots (2220) spaced apart from each other in the second direction. Each second assembly slot (2220) is suitable for accommodating a second arm (902). The first direction is perpendicular to the second direction. The structure of the frame is simplified, thereby facilitating assembly and disassembly of an arm (90) of the aircraft (100).\nA: Provided are a vehicle arm assembly of an unmanned aerial vehicle, and an unmanned aerial vehicle. The vehicle arm assembly (100) of the unmanned aerial vehicle comprises a first joint member (1), a second joint member (2) and a locking assembly (3), wherein an end portion of the first joint member (1) is hingedly connected to an end portion of the second joint member (2) by means of a spindle (4); the locking assembly (3) is capable of locking the first joint member (1) and the second joint member (2) at a predetermined position; the locking assembly (3) comprises a first locking structure (31), wherein same is provided on the first joint member (1) and is movable, and a second locking structure (32), wherein same is provided on the second joint member (2); and the first locking structure (31) and the second locking structure (32) are capable of being switched from a locked state to an unlocked state. The unmanned aerial vehicle comprising the vehicle arm assembly is capable of folding or unfolding the vehicle arm to adapt same to different occasions.\nB: A cash storage apparatus (10) and cash recycling device (30), the cash storage apparatus (10) comprising a cabinet (100) and a cash cassette assembly (200). A first bill inlet and outlet (120) is provided on the top wall of the cabinet (100). Two guiding pieces (130) are arranged inside the cabinet (100), the two guiding pieces (130) being arranged at an interval in a first direction (300). Each guiding piece (130) comprises a guide rail (136), which extends in a second direction (310) perpendicular to the first direction (300) and is provided with a positioning part (137). A second bill inlet and outlet (222) is provided on the top of the cash cassette assembly (200). The cash cassette assembly (200) is provided with two first moving pieces (223). The two first moving pieces (223) are separately arranged to be movably matched with the two guide rails (136). When the two first moving pieces (223) have respectively been moved along the two guide rails (136) as to be matched with the positioning parts (137) on the two guide rails (136), the cash cassette assembly (200) is positioned inside the cabinet (100), and the second bill inlet and outlet (222) is opposite to and communicated with the first bill inlet and outlet (120).\nC: The present application relates to a storage device for a wafer carrier. The storage device in the embodiments of the present application comprises: a support plate, comprising a first end portion, a main body portion and a second end portion that are consecutively arranged in a first direction; a spacer block, which is fixed on a lower side of the first end portion so as to make the support plate obliquely arranged as a whole, wherein the first end portion is higher than the second end portion; a stopper block, which is fixed on an upper side of the second end portion; two limiting plates, which are fixed on an upper side of the main body portion and spaced apart from each other in a second direction, the second direction being perpendicular to the first direction; and a plurality of transmission assemblies, which are arranged between the two limiting plates and arranged at intervals in the second direction, wherein each transmission assembly comprises a plurality of rollers distributed in the first direction, each roller is rotatably connected to the main body portion, and each roller at least partially protrudes out of an upper surface of the main body portion and is used to support a wafer carrier. The heights of the plurality of rollers in each transmission assembly gradually decrease in a direction approaching the second end portion.\nD: A mask plate (1), comprising a frame (100) and first alignment bars (310). The frame (100) comprises two first frame edges (110) extending in a first direction and spaced apart in a second direction, and two second frame edges (120) extending in the second direction and spaced apart in the first direction; the first frame edges (110) and the second frame edges (120) intersect to form a quadrilateral; the first frame edges (110) and the second frame edges (120) comprise opposite first surfaces (102) and second surfaces (103); the first surfaces (102) of at least three corners (101) in four corners (101) of the quadrilateral are provided with the first alignment bars (310), each first alignment bar (310) is provided with a first alignment mark (311), and the first direction intersects with the second direction. The mask plate (1) prevents a solute (3) in a gap from being dried to solid powder to be dispersed in a display area, thereby improving the production yield of the device.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power source unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, by means of percussion, the power source unit body for catapulting releases high-pressure gas, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power source unit body for catapulting.\nA: The invention relates to a high-pressure reheating gas-steam combined cycle power generation system and a power generation method. The system consists of a gas turbine sub-system and a steam turbine sub-system. The gas turbine sub-system comprises a device used for two-stage air compression, twice combustion as well as high-pressure and medium-pressure twice turbine working; after initial working of high-temperature gas, the high-temperature gas enters a medium-pressure combustion chamber and is reheated for secondary working, improving the average heat absorption temperature of the whole cycle; and at least a one-stage intercooler is arranged between two-stage compressors, and the heat flow of the intercooler is connected with the two-stage compressors. The steam turbine sub-system adopts a three-pressure reheating type boiler and a steam turbine, the cooling water of the intercooler is connected with high-pressure water, and high-pressure, medium-pressure and low-pressure water as well as the cooling water of the intercooler absorbs heat at different stages for multiple times, thus utilizing the heat energy efficiently. When the high-pressure reheating gas-steam combined cycle power generation system by the present invention is operated with the optimum parameters, the combined cycle efficiency is increased by 3-5 percentage points compared with a combined cycle system mainly adopting a gas turbine class F, and the single-machine output power is increased by more than 70%, reaching level 800MW.\nB: A gas turbine intake air cooling device using waste heat as driving force, the intake air cooling device comprising an air cooler or a cooling tower (6), a surface cooler (1), a cold water tank (7), and at least one waste heat chiller (4); the two low-temperature water ends (D, C) of the waste heat chiller (4) are connected to the surface cooler (1) via valves (I, II) and/or valves (IV, V, VI) and the cold water tank (7); the two cooling water ends (A, B) of the waste heat chiller (4) are connected to the two cooling water ends of the cooling tower (6); the high-temperature flue gas input end of the waste heat chiller (4) is connected to a waste heat fuel gas pipe (3) of a gas turbine; and the cooling air outlet of the surface cooler (1) is connected to the air intake of a gas turbine (2). The gas turbine intake air cooling device using waste heat as driving force has less energy consumption, low operating costs and controllable intake air humidity.\nC: Aircraft carrier aircraft takeoff catapult equipment, comprising a flight deck (18) having a gap (19), front and rear pulleys (20 and 23), and steel cables (36) wrapped around the pulleys. A connector block (45) connects both ends of the steel cables together. A block base (47) is provided on the connector block. A takeoff driving motor (25) can directly drive a pullable swinging arm (7) on the nose gear of an aircraft via the rear pully, the steel cables, and the block base (47) on the connector block or drive an aircraft to run and take off via a reciprocating shuttle. Because the friction between the pulleys and the steel cables can be increased by providing multiple steel cables and increasing the force of a tightening mechanism, this aircraft catapult equipment can easily achieve the driving force required by the aircraft to take off; moreover, the overall structure of the equipment is simplified, is also easy to process and manufacture, and is very suitable for use in catapulting a heavy aircraft taking off from an aircraft carrier. The equipment also is suitable for being miniaturized for installation on a ship or vehicle, specialized in catapulting the takeoff of a small-sized unmanned aerial vehicle.\nD: A magazine for an ejection apparatus and said ejection apparatus, the magazine comprising a housing (1) wherein is formed a cavity for accommodating a projectile and wherein are arranged a push-plate (2), a pull-plate (3) and a first elastic element (4); the push-plate (2) and the pull-plate (3) are movably arranged within said housing (1), the pull-plate (3) being capable of movably pulling the push-plate (2) so as to increase the volume of the accommodation cavity so as to allow a projectile to be loaded into said cavity; one end of the first elastic element (4) is retained upon the housing (1) and the other end is retained upon the push-plate (2), the purpose whereof being to cause by means of elastic recovery movement of the push-plate (2) when the pull-plate (3) is released. When in use, pulling upon the pull-plate (3) entrains movement of the push-plate (2) so as to allow loading of a projectile into the accommodation cavity; once said projectile is thus loaded, release of the pull-plate (3) causes the push-plate (2) to steadily press upon the projectile through the effect of the first elastic element (4). Projectile-loading operation of the present magazine is simple and convenient, while provision of the first elastic element and of the push-plate ensure smooth conveyance of projectiles, thus effectively avoiding problems of uneven projectile conveyance.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a synchronous clamping-conveying mechanism and a labelling machine. The synchronous clamping-conveying mechanism comprises: a bracket (100); a driving device (200), wherein the driving device (200) comprises a driving member (210), a first transmission mechanism (220) connected to a driving shaft of the driving member (210), and a second transmission mechanism (230) connected to the first transmission mechanism (220) and running synchronously and disposed on the bracket (100); a first conveying member (300), the first conveying member (300) being sheathed on the second transmission mechanism (230); a synchronous transmission mechanism (400), wherein the synchronous transmission mechanism (400) is disposed on the bracket (100), and is connected to the first transmission mechanism (220) and running synchronously; and a top pressure mechanism (500), wherein the top pressure mechanism (500) is disposed on the bracket (100) and located above the first conveying member(300), the top pressure (500) mechanism comprises a second conveying member (510), and the second conveying member (510) and the first conveying member (300) run synchronously and cooperate with each other to form a clamping-conveying channel (600). The structure realises a high degree of synchronization consistency of the actions of the first conveying member (300) and the second conveying member (510), preventing a bottle falling due to the difference in running speed between the top and the bottom, and greatly improving the conveying stability and reliability of bottles.\nA: A bidirectional power output linkage device and an antenna downtilt angle control device, the bidirectional power output linkage device comprising: an input shaft (110); a first transmission mechanism (200), the first transmission mechanism (200) comprising a first inner gear ring (210), a first gear (220) which is coaxial with the first inner gear ring (210), a second gear (230) which forms an acting connection with the first gear (220), and a first planet carrier (240); a second transmission mechanism (300), the second transmission mechanism (300) comprising a first rotating member (310) which is fixedly in transmission connection with the first planet carrier (240), and a second rotating member (320) which forms an acting connection with the first rotating member (310); a third transmission mechanism (400), the third transmission mechanism (400) comprising a second planet carrier (410) which is mounted on the second rotating member (320), a third gear (420) which is mounted on the input shaft (110), and a fourth gear (430) which meshes with the third gear (420); a one-way control mechanism, which controls the rotation direction of the first rotating member (310) to be opposite to the rotation direction of the second rotating member (320).\nB: Disclosed is a bogie landing gear (100), comprising a bogie (110), wherein the bogie (110) is connected to a bearing strut (112), at least two axles (111) are arranged on the bogie (110), and an airplane wheel (120) is installed on each of the axles (111). The bogie landing gear (100) further comprises an automatic sliding device (130). The automatic sliding device (130) comprises: a driving mechanism which is fixedly installed on the bogie (110) and comprises a first output shaft and a second output shaft that can move synchronously, wherein the first output shaft and the second output shaft are connected to a first transmission mechanism and a second transmission mechanism respectively so as to transmit output rotation to a first airplane wheel and a second airplane wheel; and a clutch mechanism (160) for enabling the first transmission mechanism and the second transmission mechanism to move between a first position and a second position, so that the first transmission mechanism and the second transmission mechanism are connected to or disconnected from the first airplane wheel and the second airplane wheel. In the structure of the bogie landing gear (100) of the structure, the improved automatic sliding device (130) structure is adopted, such that an automatic sliding operation of the bogie landing gear (100) is achieved. Further disclosed is an aircraft comprising the bogie landing gear (100).\nC: A reagent mixing and loading device (10) and an immunological detection apparatus. The reagent mixing and loading device (10) comprises a transmission mechanism (100), mixing mechanisms (200), a loading mechanism (300) and a driving mechanism (400), wherein the transmission mechanism (100) comprises a first rotating member (110) and a second rotating member (120), the first rotating member (110) being rotatably connected to a plurality of mixing mechanisms (200) arranged at intervals, and the first rotating member (110) being capable of synchronously rotating with the second rotating member (120); the driving mechanism (400) is used to drive the second rotating member (120) to rotate; each mixing mechanism (200) comprises a mixing column (210), a mixing transmission member (220) and a mixing limiting member (230), the mixing transmission member (220) being connected to the mixing column (210) in a sleeved manner and fitting with the second rotating member (120) in an abutting manner; and the loading mechanism (300) comprises a loading box (310) and a loading fitting member (320), the loading box (310) being provided with a reagent hole for the loading box (310) to be placed therein, and the loading fitting member (320) being rotatably arranged in the reagent hole and used for carrying the loading box (310). The reagent mixing and loading device (10) can implement the normal mixing of reagents without the occurrence of problems such as jamming and collision.\nD: A labeling machine for a lower surface. The machine comprises: a controller; a first transport mechanism configured to feed a product to be labeled and electrically connected to the controller; and a positioning and gripping device (200) electrically connected to the controller and comprising a workpiece gripper mechanism (210) provided above the first transport mechanism. The workpiece gripper mechanism comprises a drive member (211), a holder base (212) drivably connected to the drive member, and at least three workpiece gripper correction fingers (213) provided at the holder base. The at least three workpiece gripper correction fingers can rotate with respect to the holder base, enclose and form a workpiece holding cavity (300), and approach or move away from each other. By means of rotatability of the workpiece gripper correction fingers with respect to the holder base, the present invention provides superior adaptability to hold, position, and perform attitude correction on a product having an irregular shape, thus adjusting an attitude of the product to be highly aligned with a labeling work position, and accordingly improving labeling precision and ensuring superior manufacturing quality of the product.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA household environmental protection garbage bin, relating to the technical field of garbage bins, and solving the problem of air pollution by great peculiar smells generated by garbage which is not collected in a classified manner because an existing household garbage bin cannot separate sewage from the garbage. A second partitioning plate (16) is disposed inside a bin body (1) of the garbage bin; a first partitioning plate (15) is disposed above the second partitioning plate (16); a first storage cavity (8) is formed on one side of the first partitioning plate (15); a second storage cavity (10) is formed on the other side of the first partitioning plate (15); a first garbage bin body (9) is provided inside the first storage cavity (8), and a second garbage bin body (11) is provided inside the second storage cavity (10); the upper surface of the bin body (1) is provided with a first cover plate (12); one side of the first cover plate (12) is provided with a second cover plate (13); the second cover plate (13) and the first cover plate (12) are rotatably connected with the bin body (1) by means of hinges; a support frame (18) is provided on one side of the bin body (1); a cigarette extinguishing box (19) is provided above the support frame (18); a waste liquid storage cavity (21) is provided below the second partitioning plate (16).\nA: Disclosed is a medicinal material mashing device for motherwort paste production, which relates to the technical field of accessory devices for medicinal material production and processing. The device comprises a crushing box (1), a left door, a right door, a group of fixing rings, an insertion rod, a connection rod (5), a direct current electric motor (6), a group of blades (7), a V-shaped baffle (8) and a group of legs (9), wherein a first storage cavity is provided in the crushing box (1), a first opening is provided in a bottom face of the crushing box (1) and is in communication with the first storage cavity, and top ends of the group of legs (9) are respectively connected to a left-half region and a right-half region of a bottom face of the V-shaped baffle; further comprises a cleaning box (10), a spray head (11), a group of rolling brushes (12), a group of rotation shafts (13), a group of alternating current electric motors and a group of supports (15), wherein a second storage cavity is provided in the cleaning box (10), a second opening is provided in a right-half region of a top face of the cleaning box (10) and is in communication with the second storage cavity, and top ends of the group of supports (15) are respectively connected to a left-front side, a left-rear side, a right-front side and a right-rear side of a bottom face of the cleaning box (10); and further comprises an air drying box (16), a conveying device (17) and a group of supporting rods (18).\nB: An odor-resistant partition plate device for a garbage can, comprising a partition plate (1); a feed hole (12) is provided in the middle of the partition plate (1); an openable door is provided at the feed hole (12) for opening and closing the feed hole (12); the openable door comprises a left cover plate (2) and a right cover plate (3); the left cover plate (2) and the right cover plate (3) are in hinged connection with the bottom of the partition plate (1); the left cover plate (2) and the right cover plate (3), when being coplanar, can close the feed hole (12); closing mechanisms are provided on the left cover plate (2) and the right cover plate (3); and the closing mechanisms ensure that the left cover plate (2) and the right cover plate (3) maintain a state of closing the feed hole (12) when no external pressing force is applied. The partition plate device can be sleeved between a lid and a can body of an existing garbage can having a lid, or can be directly sleeved at the opening of a no-lid garbage can.\nC: A medicinal material mashing apparatus, relating to the technical field of accessory apparatuses for medicinal material producing and processing. The apparatus comprises a crushing box (1), a left door, a right door, a set of fixed rings, an insertion rod, a connection rod (5), a direct current motor (6), a set of blades (7), a V-shaped baffle (8), and a set of supporting legs (9); the interior of the crushing box (1) is provided with a first storage cavity; the bottom surface of the crushing box (1) is provided with a first opening; the first opening is in communication with the first storage cavity; the top ends of the set of supporting legs (9) are respectively connected with the left half region and the right half region of the bottom surface of the V-shaped baffle; the apparatus further comprises a cleaning box (10), a shower spray (11), a set of roller brushes (12), a set of rotating shafts (13), a set of alternating current motors, and a set of brackets (15); the interior of the cleaning box (10) is provided with a second storage cavity; the right half region of the top surface of the cleaning box (10) is provided with a second opening; the second opening is in communication with the second storage cavity; the top ends of the set of brackets (15) are respectively connected with the left front side, left rear side, right front side, and right rear side of the bottom surface of the cleaning box (10); the apparatus further comprises a drying box (16), a transmission device (17), and a set of supporting rods (18).\nD: A storage tank for the classified storage of agricultural products, comprising a cylinder body (1). A storage cavity (2) is provided inside the cylinder body (1). A separation plate (3) is fixedly connected in the middle of the storage cavity (2). Refrigeration pipes (6) are fixedly connected in the middle of refrigeration pipe bases (5). A temperature sensor (7) is fixedly connected on one side of the refrigeration pipe base (5). A sponge pad (8) is movably connected at the bottom of the storage cavity (2). A first spring (10) is fixedly connected on one side of a spring sleeve (9). A limiting block (11) is fixedly connected on one end of the first spring (10). A connecting rod (12) is movably connected on one side of the limiting block (11). A sliding block (13) is movably connected on one end of the connecting rod (12). A sliding groove (14) is movably connected on one side of the sliding block (13). A second spring (15) is fixedly connected on an inner bottom wall of the cylinder body (1). According to the storage tank, the refrigeration pipes (6) are arranged, so that the problem of unavailability of agricultural products due to the spoilage caused by the high temperature in summer can be avoided. The second spring (15) and the first spring (10) are arranged opposite to each other, so that the vibration of the sponge pad (8) can be reduced, and the vibration generated in the movement process of the storage tank is avoided.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn environmentally friendly household garbage can, comprising a can body (1). A bottom box (2) is mounted on a bottom surface of the can body (1); an anion generator (3) is mounted in the middle of an inner cavity of the bottom box (2); a storage battery (4) is mounted on a side of the anion generator (3); fans (5) are respectively mounted on two sides of the inner cavity of the bottom box (2); dust screen covers (6) are respectively arranged on two sides of a surface of an outer wall of the bottom box (2); a touch time delay switch (7) is mounted in the middle of the surface of the outer wall of the bottom box (2); a baffle (9) is mounted at the top of a surface of a side wall of the can body (1); a transverse rod (10) is arranged on a side of the bottom of the baffle (9); and a side wall of an end of the transverse rod (10) is provided with an insertion rod (11). An air purification effect is achieved by means of the anion generator and the fans; the transverse rod and the insertion rod co-operate so as to store a standby garbage bag, thereby facilitating use by workers; by means of the transverse rod, the insertion rod can be supported such that the insertion rod can store a garbage bag, thereby facilitating use by workers; and the baffle can achieve a certain protective effect, thereby maintaining the hygiene of the garbage bag.\nA: Disclosed is a novel environmentally friendly trash bin, comprising an upper bin body and a lower bin body (1, 2). An upper part of the upper bin body (1) is provided with a trash inlet (11), and a top cap (12) is provided at the top of the upper bin body (1). Cross bars (13) are symmetrically and horizontally arranged on the periphery of the upper bin body (1). Vertical supporting rods (14) are connected to outer ends of the cross bars (13). The lower bin body (2) is arranged under the upper bin body (1). The lower bin body (2) comprises a base (21), and a cavity for storing trash is provided in the base (21). An umbrella-shaped trash collection plate (3), which can be flattened and folded upward, is arranged on the periphery of the base (21). A driving mechanism is arranged in the base (21) and the driving mechanism is connected to the collection plate (3). The driving mechanism is controlled by a trash collection system. The novel environmentally friendly trash bin has the beneficial effects that trash falling around the trash bin due to the carelessness of pedestrians can be automatically collected, the urban environment can be beautified, and the workload of sanitation workers can be reduced. Trash on the periphery and top of the trash bin can be collected at the same time, and collection can be completed once without manual operation.\nB: A workpiece cleaning device, comprising a cleaning tank (1). A partition (2) is mounted on a side of the middle of an inner cavity of the cleaning tank (1); a bracket (3) is mounted on the left side of the bottom of the inner cavity of the cleaning tank (1); a waterproof electric rotary disc (4) is mounted on the top surface of the bracket (3); a spraying mechanism (5) is respectively mounted on the left side wall of the inner cavity of the cleaning tank (1) and the left side wall of the partition (2); the spraying mechanism (5) is composed of a portal frame (501), a transverse rod (502) and a high-pressure nozzle (503); a water pump (6) is mounted on the left side of an outer wall of the cleaning tank (1); limiting blocks (7) are respectively mounted at the bottom of the right side wall of the inner cavity of the cleaning tank (1) and at the bottom of the right side wall of the partition (2); a grid frame (8) is mounted at the top of the limiting blocks (7); ultrasonic vibrating plates (9) are respectively mounted at the top of the right side wall of the inner cavity of the cleaning tank (1) and at the top of the right side wall of the partition (2); and an ultrasonic generator (10) is mounted on the right side of the outer wall of the cleaning tank (1). The workpiece cleaning device performs pre-treatment on a workpiece by means of the spraying mechanism, and then performs secondary cleaning on the workpiece by means of the ultrasonic vibrating plates and the ultrasonic generator, thereby improving the workpiece cleaning quality and efficiency.\nC: Provided is an environmentally friendly and energy-saving cutting machine, comprising a base (1) and a vertical post (2), the vertical post being welded to one side of a top surface of the base; a cutting mechanism (3) is mounted on the top of the vertical post, the cutting mechanism comprises a support frame (301), a second fixing ring (5) is welded to one end of the vertical post, and the second fixing ring is connected to a first fixing ring (310) by means of a tension spring (4); a cutting slot (6) is disposed on one side of the surface of the base, bearing blocks (7) are welded symmetrically to the bottom surface of the base, a dust collection box (8) is provided at the center of the bottom surface of the base, and support panels (9) are welded on the tops of two side walls of the dust collection box. In the present cutting machine, a material on the base can be cut, and shavings in a protective cover can also be suctioned out so as to be able to reduce the pollution from the shavings, and by means of a second dust exhaust tube, a vacuum can be externally connected, thereby improving the efficiency of dust suctioning by the dust collection box, which can reduce environmental pollution and also reduce the harm to a worker's body caused by the shavings.\nD: A wastewater sampling device, comprising a sampling barrel (1), a barrel cover (2), a water intake pipe (3), and a water outlet pipe (4), the barrel cover (2) being mounted on the surface of the top of the sampling barrel (1), the water intake pipe (3) being inlaid and connected to the surface of the top of the barrel cover (2), the water outlet pipe (4) being inlaid and connected to the bottom of the right side of the sampling barrel (1), a bottom plate (5) being mounted on the surface of the bottom of the sampling barrel (1), a rotating mechanism (6) being disposed on the bottom of an inner cavity of the sampling barrel (1), the rotating mechanism (6) comprising a bracket (601), a counterweight ring (7) being mounted on the surface of the bottom of the bottom plate (5), a control mechanism (8) being mounted on the top of an inner cavity of the counterweight ring (7), the control mechanism (8) comprising a waterproof box (801), and a first sealing cover (301) being rotatably connected to the surface of the top of the water intake pipe (3). By means of the rotating mechanism (6), the inflow of wastewater from the water intake pipe (3) can be accelerated and wastewater can be rapidly discharged from the water outlet pipe (4), thereby facilitating personnel to guide wastewater into or out of the sampling barrel (1), increasing the wastewater sampling efficiency and achieving a rapid waste discharge function.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multifunctional portable stainless steel home storage bin, comprising a primary bin body (1), a secondary bin body (2), and a lid bin body (3). The secondary bin body (2) is fixed inside the primary bin body (1); the lid bin body (3) seals and covers the upper end of the primary bin body (1); a plurality of connection rods (5) are fixed onto the inner top wall of the lid bin body (3); the lower ends of the connection rods (5) are connected to a separator (6); the upper end of the lid bin body (3) is provided with a feeding hopper (4) in a through manner; the lower end of the feeding hopper (4) penetrates through the separator (6) to contact an inclined baffle (7); the inclined baffle (7) is rotatably connected onto a mounting block (8); the mounting block (8) is fixed at the lower end of the separator (6). The provision of the feeding hopper (4) facilitates dumping and entering of garbage and waste; moreover, by means of the provision of the inclined baffle (7) at the lower end of the feeding hopper (4), and the coordination between a reset spring (9) and rotatable connection of the inclined baffle (7) and the mounting block (8), it is convenient to seal and open the lower end of the feeding hopper (4). When opened, the lower end allows for entering of garbage, and when sealed, the lower end functions to achieve coordination with sealing and covering matching between the lid bin body (3) and the primary bin body (1), so as to prevent emission of unpleasant odor in the bin from making persons uncomfortable.\nA: An efficient crushing feed hopper comprising a feed hopper (1), wherein a cover plate (2) is arranged at an upper end of the feed hopper (1); a longitudinal stirring electric motor (3) is arranged at an upper end of the cover plate (2); a stirring shaft (4) is arranged at a lower end of the longitudinal stirring electric motor (3) and located in the feed hopper (1); an auger delivery piece (5) is mounted on the stirring shaft (4); the feed hopper (1) has an upper portion in the shape of a cylinder and a lower portion in the shape of an inverted cone; a rotating shaft (6) is arranged below the stirring shaft (4) and located in the feed hopper (1); stirring blades (7) are mounted on the rotating shaft (6); the rotating shaft (6) is movably connected to a side wall of the feed hopper (1) via a bearing seat; a transverse stirring electric motor (8) is connected to an outer end of the rotating shaft (6); the transverse stirring electric motor (8) is fixedly mounted on the side wall of the feed hopper (1); a discharge tube (9) is arranged at a lower end of the feed hopper (1); and a feed port (13) is provided on the cover plate (2). By adding a longitudinally arranged stirring shaft and a transversely arranged rotating shaft in a feed hopper, agglomerate materials in the feed hopper can be double stirred, thereby ensuring sufficient crushing of the agglomerate materials, effectively preventing the materials from blocking the feed hopper and lengthening the usage life of the feed hopper.\nB: A balance ring mounting structure, an inner tub having same and a washing machine. The balance ring mounting structure comprises a balance ring (1) and a tub body (2). The balance ring (1) is mounted on an upper opening of the tub body (2). An inward convex support portion (3) is provided at the periphery of the upper end of the tub body (2). An overlap portion (4) overlapped on the support portion (3) is provided at the outer periphery of the balance ring (1). A sealing element (5) is sandwiched between the support portion (3) and the overlap portion (4). The tub body (2) is rotatably riveted to the balance ring (1). A groove structure (6) stamped from outside to inside is provided at the periphery of the upper end of the tub body (2), an opening faces towards the outside of the periphery of the tub body (2), and the groove bottom is protruded inward the tub body (2). The support portion (3) is located above the groove structure (6). A water outlet (7) is formed below the support portion (3) of the inner tub of the washing machine. During dewatering, water in the tub climbs upwards under the centrifugal force and is guided to the outside of the tub from the water outlet (7). The washing machine is sealedly connected between the inner tub and the balance ring (3) to prevent water splashing between the inner tub and the balance ring (3) to cause potential safety hazard. The structure is simple, the sealing effect of the inner tub is good, and the dewatering is rapid.\nC: Disclosed is a sealing garbage can, comprising a can body (1) and a can cover (2); a garbage receiving apparatus (5) is disposed on the can cover (2), the garbage receiving apparatus (5) comprises a cover body (501) and a rotation body disposed on the cover body (501), the cover body (501) closes the space inside a garbage bag, and a temporary storage compartment (508) is disposed on the rotation body; the can cover (2) is also provided with a garbage bag storage apparatus (3) and a garbage bag sealing apparatus (4); the can body (1) or can cover (2) is provided with a garbage bag infeed apparatus; the garbage bag storage apparatus (3) is installed under the garbage receiving apparatus (5); a garbage bag sealing apparatus (4) is mounted under the garbage bag storage apparatus (3); a controllable channel used for communicating with the external environment when a bag is inserted is disposed between the garbage receiving apparatus (5) and the garbage bag storage apparatus (3), or on the garbage receiving apparatus (5). The sealing garbage can has good sealing and deodorization performance as well as the function of automatically packing and sealing filled garbage bags. Furthermore, after removing a packed garbage bag, a new garbage bag can be communicated with the external environment such that bag infeed of the new garbage bag can be successfully completed.\nD: A feeding barrel for drinking and ingestion, a drinking and ingestion integrated device, and a feeding control method, the feeding barrel for drinking and ingestion comprising a barrel body (1), independent discharging ports are provided on a lower end of the barrel body (1), a rotating rod (12) is rotationally arranged between adjacent material separating plates on each discharging port, a rotating plate (15) is fixedly arranged on each rotating rod (12), and a water tank (2) is also disposed on the barrel body (1). The drinking and ingestion integrated device comprises the barrel body (1), an ingestion groove (7) is provided below the barrel body (1), a plurality of partition plates (72) are provided within the ingestion groove (7), and a plurality of ingestion areas are formed therein. The feeding control method comprises: an instruction terminal sends an operation instruction; a controller (6) receives the operation instruction and selects a working state, and controls a driving motor (61) and an electric control valve (52); and after control is complete, the driving motor (61) and the electric control valve (52) are closed, and discharging is complete.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA garbage bag packing mechanism and an intelligent garbage bin. The packing mechanism is disposed in a trash bin body (1), and a location at a top part of an inner wall of the trash bin body (1) is provided with a first fixed side and a second fixed side intersecting with the first fixed side. The packing mechanism comprises a first pressing rod (2) capable of sliding along the second fixed side, and a second pressing rod (3) capable of sliding along the first fixed side, wherein the first pressing rod (2) and the second pressing rod (3) may draw a garbage bag to the intersection location of the first fixed side and the second fixed side, and a hot melting device (4) is disposed near the intersection location. The packing mechanism further comprises a driving device (9) for driving the first pressing rod (2) and the second pressing rod (3) to move.\nA: Disclosed is a novel environmentally friendly trash bin, comprising an upper bin body and a lower bin body (1, 2). An upper part of the upper bin body (1) is provided with a trash inlet (11), and a top cap (12) is provided at the top of the upper bin body (1). Cross bars (13) are symmetrically and horizontally arranged on the periphery of the upper bin body (1). Vertical supporting rods (14) are connected to outer ends of the cross bars (13). The lower bin body (2) is arranged under the upper bin body (1). The lower bin body (2) comprises a base (21), and a cavity for storing trash is provided in the base (21). An umbrella-shaped trash collection plate (3), which can be flattened and folded upward, is arranged on the periphery of the base (21). A driving mechanism is arranged in the base (21) and the driving mechanism is connected to the collection plate (3). The driving mechanism is controlled by a trash collection system. The novel environmentally friendly trash bin has the beneficial effects that trash falling around the trash bin due to the carelessness of pedestrians can be automatically collected, the urban environment can be beautified, and the workload of sanitation workers can be reduced. Trash on the periphery and top of the trash bin can be collected at the same time, and collection can be completed once without manual operation.\nB: A foldable bicycle, comprising: a front wheel (1), a rear wheel (2), a handle (3), a main beam (4), a support rod (5), a pedal mechanism (6), a first fixing lock (453), and a second fixing lock (432), wherein the front wheel (1) is connected to the handle (3); the pedal mechanism (6) and the rear wheel (2) are connected by means of a chain (8) to drive the rear wheel (2) to rotate; one end of the support rod (5) is provided with a seat cushion (7), and the other end passes through a through hole (451) left on the main beam (4) and is connected to the pedal mechanism (6); one end of the main beam (4) is connected to the handle (3), and the other end is connected to the pedal mechanism (6) by means of a first rotating shaft (61); by means of moving along the through hole (451), the support rod (5) can drive the pedal mechanism (6) to rotate along the first rotating shaft (61) and approach the main beam (4); the first fixing lock (453) is used for fixing the relative position of the support rod (5) and the main beam (4); a second rotating shaft (41) is provided at the part where the through hole (451) on the main beam (4) is connected to the handle (3), and the main beam (4) can be bent along the second rotating shaft (41) so that the front wheel (1) and the rear wheel (2) approach each other; the second fixing lock (432) is used for fixing the main beam (4) in a non-bending state.\nC: A cutting fixing device for textile manufacturing, comprising a cutting table (3) and a vertical support (2) provided on the upper side surface of the cutting table (3). One side of the vertical support (2) is provided with a fixing assembly (1); the vertical support (2) is connected to the cutting table (3) by means of a direction adjustment assembly; the fixing assembly (1) comprises a horizontal support (102) and an electric push rod (101); the electric push rod (101) is provided on the upper side surface of the horizontal support (102); a bearing support (111) is provide at the bottom of a piston rod of the electric push rod (101); a pressing sleeve (103) and a second pressing sleeve (110) are symmetrically provided on one side surface of the bearing support (111); a first spring (104) is provided at the inner top portion of the first pressing sleeve (103); one end of the first spring (104) is fixedly connected to a first pressing rod (105); the first pressing rod (105) is slidably connected in the first pressing sleeve (103); a first pressing pad (106) is provided at the bottom of the first pressing rod (105); a second spring (109) is provided at the inner top portion of the second pressing sleeve (110); one end of the second spring (109) is fixedly connected to the second pressing rod (108); the second pressing rod (108) is slidably connected in the second pressing sleeve (110); and a second pressing pad (107) is provide at the bottom of the second pressing rod (108).\nD: Disclosed are a machine head for a packing machine and the packing machine. The machine head for the packing machine comprises: a mounting base (40); a sealing assembly (1), wherein the sealing assembly (1) comprises a cutter (11) and a sealing element (12), with the sealing element (12) being used for welding a packing belt (100), and the cutter (11) being used for cutting off the packing belt (100). The sealing assembly (1) further comprises a first clamping mechanism (13), a second clamping mechanism (14) and a third clamping mechanism (15), with the first clamping mechanism (13), the second clamping mechanism (14) and the third clamping mechanism (15) being used for clamping the packing belt (100). The sealing assembly (1) is slidably arranged on the mounting base (40); a belt-conveying assembly (2), wherein the belt-conveying assembly (2) comprises a first electric motor (21), a driving wheel (22) and a guide block (23), with the guide block (23) being fixedly arranged on the mounting base (40), the driving wheel (22) being rotatably arranged on the mounting base (40), a belt-conveying channel (20) of an arc-shaped structure being provided between the driving wheel and the guide block (23), and the first electric motor (21) being used for driving the driving wheel (22) to rotate; and a driving assembly (3), wherein the driving assembly (3) is used for driving the sealing assembly (1) to be close to or away from the driving wheel (22). A balanced tensioning force is applied to the packing belt by means of the packing machine head, such that the packing quality of the packing machine is improved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a turn-over type dust-free automatic bag-breaking and feeding station, comprising: a frame (8); a bag-breaking compartment (5) fixedly arranged on the frame (8); a dust removal device, which is connected to the upper portion of the bag-breaking compartment (5); and a discharging device, which is connected to the lower portion of the bag-breaking compartment (5), wherein both the dust removal device and the discharging device are in communication with the bag-breaking compartment (5); a filter plate (12) is provided between the discharging device and the bag-breaking compartment (5); one end of the bag-breaking compartment (5) is provided with a feeding port (5-1), and the other end of the bag-breaking compartment (5) is provided with a waste bag recovery port (5-3); a feeding platform is provided at the feeding port (5-1) of the bag-breaking compartment (5); the filter plate (12) is obliquely arranged downwards from the feeding port (5-1) end of the bag-breaking compartment (5) to the waste bag recovery port (5-3) end of the bag-breaking compartment (5); and the end in the bag-breaking compartment (5) that is close to the feeding platform is provided with a bag-breaking device, the end in the bag-breaking compartment (5) that is away from the feeding platform is provided with a manual bag-shifting device, and a side wall of the bag-breaking compartment (5) is provided with an observation window (11). By means of the rotation of the manual bag-shifting device, a material bag can be turned over so as to clear loose material in a broken bag more thoroughly and prevent clogging when a waste bag is discharged.\nA: Disclosed is a plastic bag vending mechanism, comprising a cabinet (101), a bag storage bin (301), a bag suction arm (401), an air pump (502) and a numerical control system. A cabinet door (201) on the front of the cabinet (101) can be opened for replenishment. A lower side of the cabinet door (201) is provided with a bag outlet (202). The bag storage bin (301) stores a vest-shaped plastic bag (304). The bag suction arm (401) is provided on the bag storage bin (301). The bag suction arm (401) is composed of an electromechanical member, a photoelectric sensor and a suction cup (402). The suction cup (402) is connected to the air pump (502) via an air pipe, and a negative air pressure generated by the air pump (502) enables the suction cup (402) to suck up the plastic bag (304) on the bag storage bin (301). The electromechanical component delivers the plastic bag (304) from the bag outlet (202), such that a customer can take the plastic bag (304) by himself/herself. A numerical control electronic system is provided inside a case. The numerical control system can communicate with a cashier system and can receive related instructions from external devices, such as the cashier system, to control the plastic bag vending machine to carry out a corresponding action.\nB: A late-stage drying recycling device for color master batch, comprising a recycling box body (1). One end of the recycling box body (1) is provided with a feeding port (2), and the other end thereof is provided with a discharging port (3); a partition plate (4) inclined from the feeding port (2) to the discharging port (3) is provided in the recycling box body (1); the partition plate (4) partitions the recycling box body (1) into a recycling cavity (1-1) and an equipment cavity (1-2); the equipment cavity (1-2) is provided with at least three jacking devices (5) sequentially along the direction from the feeding port (2) to the discharging port (3); strip-shaped through grooves (7) used for allowing jacking plates (6) of the jacking devices (5) to pass through are formed in the partition plate (4); the surface of the partition plate (4) is provided with a covering supporting layer (8); the upper end portions of the jacking plates (6) are fixedly connected to the lower side surface of the covering supporting layer (8); and a cold air outlet (9) is formed in the recycling cavity (1-1). The device has the advantages that the dried color master batch can be fully cooled, and the safety of operators is guaranteed.\nC: An environment-friendly fiber machine, comprising a fiber machine body (1). The fiber machine body (1) comprises a feeding apparatus (2), a grinding apparatus (5), a dust removal apparatus (6), and a water circulation system; the water circulation system comprises a water tank (8), a sprayer (3), and a water collection channel (11); the top of the fiber machine body (1) is provided with the feeding apparatus (2); the bottom of the feeding apparatus (2) is connected onto the grinding apparatus (5) provided at the upper side of the fiber machine body (1); the top of the grinding apparatus (5) is provided with the sprayer (3); a filter screen (14) is provided in the fiber machine body (1) below the grinding apparatus (5); a conveyor belt (12) is provided below the filter screen (14); one end of the conveyor belt (12) is provided with a discharge port (13), and the end of the conveyor belt (12) opposite to the discharge port (13) is provided with a motor (10); the water collection channel (11) is provided under the conveyor belt (12). By means of the provision of the grinding apparatus (5), the dust removal apparatus (6), and the water circulation system, the environment-friendly fiber machine solves the problems of environmental pollution and resource waste caused during fiber processing and improves environmental protection.\nD: A bag-breaking machine for breaking renovation waste, the bag-breaking machine comprising two sets of rollers (1, 2) which are horizontally arranged and rotate in opposite directions. Meshing tooth-shaped structures (5) which are arranged at intervals are independently arranged on each set of rollers (1, 2), and the two sets of meshing tooth-shaped structures (5) are configured identically and arranged in a staggered manner; rotating shafts of the two sets of rollers (1, 2) are in transmission connection with variable-frequency speed reduction devices (3, 4); and the variable-frequency speed reduction devices (3, 4) are used for adjusting the speed of the rollers (1, 2).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fully electric scissor-type aerial work platform, comprising a lifting unit (31), a walking unit (33), a steering unit (32) and a control unit. The lifting unit (31) comprises a lifting adjusting assembly. The walking unit (33) comprises an electric driving component (23). The steering unit (32) comprises an electric steering control component (21). The control unit comprises a whole machine controller (26), a lifting unit sensor used for collecting height and speed information of a work platform (1), and a steering unit sensor used for collecting steering angle information of the work platform (1). The lifting unit sensor, the steering unit sensor, an electric lifting control component (4), the electric steering control component (21) and the electric driving component (23) are all connected to the whole machine controller (26). The whole machine is fully electrically driven, and there is no hydraulic system involved, thereby solving the problems that an electro-hydraulic driving system of an existing scissor-type aerial work platform has a low electric energy utilization rate, the risk of hydraulic oil leakage and high maintenance costs, and achieving, by means of an efficient electric energy utilization rate of an electric motor, the aims of reducing the installed capacity of a whole machine battery and reducing the manufacturing and maintenance costs for the whole machine.\nA: A distributed four-wheel-drive pure electric platform, comprising: an electric energy system, comprising a battery control module (11), a power battery (12), a voltage regulation module (13), two sets of batteries (14) and two sets of junction boxes (15); a power system, comprising a vehicle control module (21), and four sets of wheel hub motors (22) connected to the power battery (12); a braking system, comprising a brake control module (31), and four sets of brake motors (32) connected to the power battery (12); and a steering system, comprising a steering control module (41), and four sets of steering gears (42) connected to the power battery (12). Also provided is a control method for the distributed four-wheel-drive pure electric platform. The distributed four-wheel-drive pure electric platform achieves the braking of the distributed four-wheel-drive pure electric platform, and improves the safety of the distributed four-wheel-drive pure electric platform.\nB: Disclosed is an amplitude limiting system of an insulated aerial work platform. The insulated aerial work platform (1) comprises a telescopic arm (11), an insulated foldable arm (12) and a telescopic supporting leg (13); an amplitude-variable oil cylinder (2) is installed between the telescopic arm (11) and the insulated foldable arm (12); a first pressure sensor (3) is connected to an oil pressure cavity (21) of the amplitude-variable oil cylinder (2), and is electrically connected to a controller (8) through signals; a balance valve (4) is provided on the amplitude-variable oil cylinder (2); a reversing valve (5) is connected to the balance valve (4); and a flow meter (6) is connected in series between a directional control valve (5) and the balance valve (4), and is electrically connected to the controller (8) through signals. The amplitude limiting system of the insulated aerial work platform is capable of precisely limiting the amplitude without the need for placing electrical components on the telescopic arm of the insulated aerial work platform, thereby improving the safety of aerial work.\nC: A multifunctional test bench for a power split hydraulic mechanical composite transmission system, comprising a platform (19) and a control system. An alternating current servomotor (1), a flow splitting mechanism (2), a hydraulic transmission unit (3) to be tested, a flow combination mechanism (4), and a hydraulic loading system (5) are provided on the platform (19); the control system comprises an industrial control computer (33), a PLC (32), an input end PLC D/A module (31), an output end PLC D/A module (39), a signal acquisition unit (36), a pressure sensor (42), a flow sensor (41), a speed regulation controller (38), a loading system controller (40), and a servomotor controller (30). Performance test of a hydraulic mechanical composite transmission system can be simply and reliably carried out, test time and costs can be greatly reduced, and performance test of the hydraulic transmission unit (3) to be tested, the ratio test of mechanical and hydraulic power flows, and the stage switching stability test are implemented.\nD: An automatic steering device of an agricultural machine, the device is connected to a steering axle of the agricultural machine and comprises a data acquisition unit (1) used for acquiring agricultural machine data information, wherein the agricultural machine data information comprises an actual steering angle value, a driving position, and a driving direction of the agricultural machine; a driving unit (2) used for providing rotating torque; a steering unit (3) connected to the driving unit (2) and the steering axle and used for transferring the rotating torque to the steering axle; and a control unit (4) connected to the data acquisition unit (1) and the driving unit (2) and used for obtaining the steering angle value according to the agricultural machine data information and controlling the driving unit (2) according to the steering angle value. The automatic steering device of the agricultural machine is simple in structure, capable of being used for agricultural machines with different steering angle ranges, high in efficiency and easy to operate.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA capping device for a medical disc-type filling apparatus and a capping method therefor, belonging to the technical field of intelligent filling. A bottle clamping device (206) is mounted on a body of a trapezoidal base (1), and a displacement sensor (205) is mounted on a connection block (202) of a capping unit (2), such that a screwed state of a bottle cap (4) can be recorded in real time, and the length of the bottle cap (4) that moves down by screwing is recorded, and a rubber piece (5091) made of a rubber material is provided at an end portion of an arc-shaped support column (507) and a slide block (5082) of the bottle clamping device (206), the rubber piece (5091) on the periphery of a filling bottle (3) effectively prevents the traces leaving on the filling bottle (3) due to excessive clamping force, the rubber piece (5091) is provided with a rhombic knurl pattern on the surface thereof, so as to prevent the filling bottle (3) from sliding. The mechanical mode for fixing the filling bottle reduces the labor intensity of an operator, and using a servo motor to control a tightening joint (2064) and using the displacement sensor (205) to record the screwed state of the bottle cap (4) improve the qualification rate of the product.\nA: A pipeline type intelligent spraying robot and a working method thereof. The robot comprises a frame (1), multi-wheel drive units (2), and a pre-tensioning and reducing mechanism 3. Three multi-wheel drive units (2) are provided on the body of the frame (1), drive wheels (205) are distributed at 120°, and a drive motor (206) and the drive wheel (205) are fixed on the same support, so that the drive unit (2) is simplified, thereby economizing a design space. In order to prevent the drive wheel (205) from slipping, a rubber material is surrounded on the periphery of the drive wheel (205) to increase a static friction coefficient. A synchronous belt (212) is used as the transmission mode of the drive motor (206) and the drive wheel (205), so that a constant transmission ratio during transmission is maintained, stable transmission and vibration damping are implemented, and maintenance can be facilitated during use. Three independent torque motors are used so that the robot is driven to smoothly pass through a circular bend pipe by means of differential speeds between three wheels.\nB: A device and method for detection of liquid impurities in bottle set filling; the detection process thereof is as follows: at initial bottle-pickup station (1010), set clamping mechanism (30) simultaneously gripping a set of filling bottles (66) from a plurality of bottle guide slots (65) of bottle feed mechanism (60); the set of filling bottles (66) to be tested is moved to a detection station (1023) equipped with a lighting system (70), and the set of filling bottles (66) is rotated at high speed, the rotational motion of the liquid inside the bottle forcing precipitated impurities in the liquid to rise; while the liquid in filling bottles (66) is in rotation, a sequence of images are taken, of the liquid in rotation, by image acquisition system (50) electrically connected to computer analysis control system (90), and computer analysis system (90) analyzes the images, calculates the size of the insoluble impurity particles, and determines whether same exceed specifications; lastly, a sorting mechanism (80) sorts out acceptable product. The design approach of the detection device and method makes use of set-type gripping, simultaneous movement, simultaneous detection, and simultaneous bottle unloading, and the invention has the advantage of a high detection rate.\nC: Disclosed is a non-contact hot-filling valve, comprising a hollow cavity (1) arranged on a frame, a valve rod (2) arranged in the hollow cavity (1) and capable of moving up and down, a liquid inlet (3) in communication with the hollow cavity (1), a filling opening (4) arranged below the hollow cavity (1), a driving mechanism (5) for driving the valve rod (2) to move up and down to connect or disconnect the liquid inlet (3) from the filling opening (4), a filling backflow opening (6) in communication with the hollow cavity (1), and a control mechanism (7) for controlling opening and closing of the filling backflow opening (6). The valve uses non-contact filling, thereby preventing material splashing and reducing waste of drinks. By arranging the filling backflow opening and the control mechanism, no liquid remains in the valve after hot filling, and it is possible to ensure a liquid enters filling bottles at a preset temperature.\nD: An industrial full-automatic capping machine, comprising a machine frame (1), a conveying device, a control device, a support device (2), a cap feeding device (3) and a tightening device (4); the cap feeding device (3), the tightening device (4), the support device (2) and the conveying device being arranged on the machine frame (1) successively, from top to bottom; the support device (2) comprising an inner support device, (5) an outer support device (6), and an ultrasonic detector (7) being provided above the inner support device (5); one end of the tightening device (4) being arranged in a sliding manner, the inside of the other end being provided with a rotating chain (8), and a pressure sensor (9) being provided on the rotating chain (8). The full-automatic capping machine can realize automation of a capping process, not only being capable of effectively controlling the cap tightening degree, reducing the production cost, but also reducing the difficulty of work, increasing working efficiency, being practical and having a wide scope of application.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a juicer automatic packaging apparatus comprising an automatic door panel, comprising an automatic cup-packaging apparatus and an automatic juice-dispensing apparatus; the automatic cup-packaging apparatus comprises a base disk (1), a cup-dispensing apparatus (2), a cover-dispensing apparatus (3), and a cover-pressing apparatus (4); the cup-dispensing apparatus (2), cover-dispensing apparatus (3), and cover-pressing apparatus (4) are higher than the base disk (1); the base disk (1) is connected to an electric motor one (5); the electric motor one (5) rotates to drive the base disk (1) to rotate about its center; the automatic juice-dispensing apparatus comprises a funnel (201), a juice-storage tube (202), a connecting member (203), and a guide tube (209); the bottoms of the guide tube (209) and the funnel (201) are connected; one end of the juice-storage tube (202) is closed, the other end has an opening (204), and in the middle, another opening (205) is provided on the upper part; the bottom of the guide tube (209) is located in the opening of the upper part at the middle of said juice-storage tube; the automatic packaging apparatus also comprises a door panel; the door panel comprises a door panel body (301) and a delivery opening (302); an upper stop plate (303) is provided above the delivery opening (302), and a lower stop plate (307) is provided beneath the delivery opening (302); the door panel also comprises an electric motor four (304); by means of a drive rod, the electric motor four (304) drives the lower stop plate (307) in vertical motion; the upper stop plate (303) is connected to the door panel body (301) by means of a resilient apparatus (305).\nA: A single-fulcrum magnetomotive centrifugal blood pump is provided with a pump body and a driving device. The pump body comprises a top cap (1), a base (2), an impeller (3) and outer magnetic steel (305); the base (2) is provided with at least three layers of bosses (201, 202, 203); the boss (201) at the top end is provided with a groove (204); a rolling ball (205) is placed in the groove (204); a patchhole (206) is arranged at the center of the bottom of the base (2); vanes (301) and an annular joint (302) are arranged on the impeller (3); connecting rods (303) are arranged in the inner circle of the annular joint (302) and gathered around the center of the inner circle of the annular joint (302); a circular arc central groove (304) is formed at the bottom of the gathering position of the connecting rods, and is matched with the rolling ball (205) in the groove (204) in the boss to form a single-fulcrum bearing; the outer magnetic steel (305) is arranged inside the vanes (301); the driving device comprises a transmission shaft (5) and a driving motor (4) provided with a motor rotor (401); the motor rotor (401) is sleeved with the transmission shaft (5); the transmission shaft (5) is inserted into the patchhole (206); and inner magnetic steel (501) is arranged inside the transmission shaft (5). The blood pump can effectively reduce the incidence rate of thrombus and hemolysis as the pre-filling quantity is less; the structure is simple and stable; the mounting is convenient; and the cost is low.\nB: A mortar car with a self-walking hydraulic chassis includes a self-walking chassis and a mortar upper fixture (6) mounted on the self-walking chassis. The self-walking chassis includes a frame (1), a hydraulic power module (2) fixed on the frame (1), more than one bidirectional drive wheel groups (3) and a control module (4). The bidirectional drive wheel group (3) includes a walking bracket (301), wheels (302) and a steering module. The walking bracket (301) is fixed on a longitudinal beam (11) and further fixed on a chassis frame beam (102) of the frame (1) through the longitudinal beam (11). More than one distance measuring sensors (303) used for detecting the distance between wheels (302) and the inner side walls of rails are arranged on the walking bracket (301). The control module (4) receives the distance signals collected by the distance measuring sensors (303) and judge whether it is safe based on the distance signals, then outputs a control signal to the steering module. The hydraulic power module (2) includes a driving motor (201), a hydraulic pump (202) and a hydraulic motor (203). The output end of the hydraulic motor (203) is connected to one wheel (302) by a transmission mechanism. The invention has advantages of simple and compact structure, low cost, broad applicability, high automation, flexible steering and other states.\nC: A freshly squeezed orange juice bottling production line for a vending machine, comprising a production line structure frame (1), a bottle grabbing mechanical arm (2), a mechanical arm connecting plate (3), a horizontal delivery mechanism (4), a filling apparatus (5), a lid applying mechanism (6), a lid adjusting mechanism (7), a lid tightening mechanism (8), and a rotary product-output mechanism (9). The bottle grabbing mechanical arm (2) is disposed on and tightly fixed to the mechanical arm connecting plate (3), the mechanical arm connecting plate (3) is disposed on and tightly fixed to the horizontal delivery mechanism (4), the horizontal delivery mechanism (4) is disposed on and tightly fixed to the production line structure frame (1), the filling apparatus (5) is disposed on and tightly fixed to the left side of the lid applying mechanism (6), the lid adjusting mechanism (7) is disposed on and tightly fixed to the right side of the lid applying mechanism (6), the lid applying mechanism (6) is positioned above the production line structure frame (1), the lid tightening mechanism (8) is disposed on the right side of the lid adjusting mechanism (7) and is tightly fixed above the production line structure frame (1), and the rotary product-output mechanism (9) is disposed under the horizontal delivery mechanism (4) and is fixed to the production line structure frame (1). The present production line applies and tightens the lids of filled bottles of freshly squeezed orange juice in a vending machine and outputs same, thus implementing automatic production processing and control.\nD: Provided is a wheat straw crushing apparatus, comprising a machine body (1), a base (101), and casters (102), the machine body being fixedly mounted on one end of the upper surface of the base, the casters being rotatably mounted on the bottom of the base. A first motor (2) is fixedly mounted on the other end of the upper surface of the base, a drive roller (201) is fixedly connected to a power output end of the first motor, and a sound insulation cover (202) is fixedly arranged on the surface of the first motor. A rotating disc (3) is rotatably arranged in an inner cavity of the machine body, a crushing cutter head (302) is fixedly mounted on the surface of the rotating disc, an arcuate base (303) is fixedly mounted on the bottom of the inner cavity of the machine body, an anti-impact device (304) is fixedly mounted on the upper surface of the arcuate base, and the anti-impact device and the crushing cutter head are fitted with each other. A conveyor belt (4) is fixedly mounted on one end of the top of the machine body. The crushing apparatus, when crushing wheat straw, can feed material automatically, reducing the labour intensity of the operator while also improving wheat straw crushing efficiency and quality.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a normal-pressure milk-filling machine, comprising a liquid storage tank (1), a filling valve (2), a main shaft (3), a bottle tray (5), a bottle input shift wheel (6), a bottle output shift wheel (7), a lifting device (9) and a transmission device (10), wherein the filling valve (2) is fixedly mounted at a bottom end of the liquid storage tank (1), and the bottom end is adapted thereto; the liquid storage tank (1) is fixedly mounted on the main shaft (3); the bottle tray (5) is arranged around the main shaft (3); a guide plate (8) is mounted at the bottom of the bottle tray (5); the bottle input shift wheel (6) and the bottle output shift wheel (7) are symmetrically arranged on the guide plate (8), and the bottle input shift wheel (6) and the bottle output shift wheel (7) are adapted to each other; a frame (4) is arranged below the guide plate (8), and the lifting device (9) and the transmission device (10) are mounted in the frame (4); the bottle tray (5) is sleeved over and adapted to the lifting device (9); and the main shaft (3) passes through the frame (4) and is connected to the transmission device (10). The normal-pressure milk-filling machine has a simple and rational structural design, can precisely control the humidity and temperature of the liquid storage tank (1), and has excellent pipe sealing performance. A lifting rod (9-3) can drive a bottle tray rod (9-1) to lift without deviation, and a lifting rod slide sleeve (9-5) does not produce friction when lifting in a bottle tray rod sleeve (9-2).\nA: A plastic sheet equidistant cutting device for the chemical industry, comprising a worktable (1). Four corners on a bottom end of the worktable (1) are fixedly connected to support legs (2). A conveyor belt (3) is fixedly arranged in the middle of the top end of the telescopic worktable (1). A lifting/lowering plate frame (4) is fixedly arranged on the top end of the worktable (1) located on the side of the conveyor belt (3). A sheet hopper (5) is fixedly arranged on the side of the worktable (1). The tail end of a rotating shaft of a transmission wheel on one end of the conveyor belt (3) is fixedly connected to a first stepper motor (7). A second stepper motor (8) is fixedly arranged in the middle of the top end of the lifting/lowering plate frame (4). A ball screw (9) is provided inside the lifting/lowering plate frame (4) along the central axis. The top end of the ball screw (9) penetrates through the top end of the lifting/lowering plate frame (4), and is fixedly connected to the tail end of a rotating shaft of the second stepper motor (8). An outer wall of the ball screw (9) is threadedly connected to a lifting/lowering table (10). A fixed shaft (12) is fixedly arranged in the middle of both ends of the lifting/lowering table (10). The tail end of the fixed shaft (12) is fixedly connected to a fixture base (13). The plastic sheet equidistant cutting device for the chemical industry is simple and reasonable in structure, has a novel design, and has high equidistant cutting efficiency in plastic sheet equidistant cutting.\nB: Intelligent filling equipment and a filling method thereof. The equipment comprises a bottle feeding mechanism (1), weighing parts (2), filling needle parts (3) and a bottle discharging mechanism (4), and further comprises a transfer mechanism (6); the weighing parts (2) are provided at the bottle feeding end of the bottle discharging mechanism (4); the filling needle parts (3) are provided above the weighing parts (2); the bottle discharging mechanism (4) is provided with a buffer platform (41); the bottle feeding end of the bottle discharging mechanism (4) and the buffer platform (41) are oppositely arranged at two sides of the weighing parts (2). The filling method comprises the steps of: S1, bottle feeding; S2, bottle taking; S3, bottom pushing and bottle placement; S4, filling: performing the next bottle taking by means of the transfer mechanism (6), first weighing empty medicine bottles by the weighing parts (2) and then starting filling, keeping weighing during filling until the filling amount reaches a target value, and performing the next bottle pushing and bottle placement by means of the transfer mechanism (6) after the filling is finished; and S5, repeatedly performing step S4 until the filling of all the medicine bottles is finished. The intelligent filling equipment has a compact structure and facilitates the improvement of the filling precision and product yield.\nC: An agricultural digging apparatus, comprising a base (1), wheels (2), a push handle (4), a lifting support (5), a first motor (6), a guide plate (7), an elliptical cam (8), a contact wheel (9), a lifting rod (10), a fixing block (11), a spring (12), a connecting plate (13), etc. The wheels (2) are mounted at the bottom of the base (1), a through hole is formed in the middle of the base (1), a left end of the base (1) is provided with the push handle (4), and the top of the base (1) is provided with the lifting support (5); a right side of the lifting support (5) is provided with the first motor (6) and the guide plate (7), the first motor (6) is provided above the guide plate (7), and the elliptical cam (8) is mounted at an upper portion of the first motor (6). The agricultural digging apparatus can quickly dig a pit in the ground, and has high digging efficiency, and saves time and manpower.\nD: An electronic component welding apparatus for circuit board production, comprising a bottom plate (1); a support column (2) is mounted on the bottom plate (1), a first sliding groove (3) is provided inside the support column (2), a lifting/lowering device (4) is mounted inside the first sliding groove (3), a first support plate (5) is mounted at the top of the lifting/lowering device (4), a rotating motor (6) is mounted inside the first support plate (5), and a fixing device (7) is mounted on the rotating motor (6); a rack (8) is mounted at an edge portion of the bottom plate (1), a top plate (9) is mounted at the top of the rack (8), a second sliding groove (10) is provided beneath the top plate (9), a sliding block (11) is provided inside the second sliding groove (10), a hanging rod (12) is mounted at the bottom of the sliding block (11), and a welding head (13) is mounted at the bottom of the hanging rod (12). Said apparatus has improved adaptability by modifying the fixing device (7), and can perfectly fix circuit boards when facing circuit boards of different models and thicknesses; and the lifting/lowering device (4) is attached, which allows for lifting/lowering of a placement platform only by manually controlling a rotating handle (47), being convenient and quick.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA wine-cabinet type intelligent wine distributor and a control method. The wine -cabinet type intelligent wine distributor comprises a wine cabinet main body (2) and a wine distributor, wherein the wine cabinet main body (2) comprises a wine storage chamber for placing wine bottles, and a wine distributing chamber for placing the wine distributor; the wine distributor comprises a wine distributor bottle (5) provided with a wine outlet (12), and further comprises a wine outlet key (4) for controlling the wine flowing out of the wine outlet (12) of the wine distributor bottle (5). The wine-cabinet type intelligent wine distributor has not only functions of a normal wine cabinet, but also a wine distributing function, is multi-purpose and powerful in functions, thereby meeting the requirements of intelligent-home users.\nA: A wine decanter comprises a wine feeding funnel that axially passes through the whole body of the wine decanter, a mixing cavity, and a wine discharge funnel. A gas guide tube is disposed in the wine feeding funnel. One end of the gas guide tube is accommodated in the mixing cavity, and the other end is provided with an umbrella end capable of fully covering but not blocking the passage of the gas guide tube. The gas guide tube is further provided with a connection sheet perpendicular to the axial direction of the gas guide tube and having several through holes. The periphery of the connection sheet is matched with and connected to an inner wall of the wine feeding funnel, and divides the wine feeding funnel into upper and lower cavities. The wine decanter enables wine to contact air for multiple times, avoids blocking the gas inlet tube, and obstructs dust.\nB: A temperature and humidity-controlled wine container, comprising: a container (100), an inner container (110) defining a wine storage chamber (151) therein; an air channel cover plate (200), an air channel (300) being formed between the air channel cover plate (200) and the inner container (110); an evaporator (500); a compressor; a water storage member (600), disposed at the bottom of the evaporator (500); an air supply device (700), drawing air flow from the wine storage chamber (151) and supplying the air flow to the evaporator (500), at least a portion of the air flow flowing through a first side face (510) of the evaporator (500) and then flowing to the wine storage chamber (151), and another portion of the air flow flowing through a second side face (520) of the evaporator (500) and the water storage member (600) and then flowing to the wine storage chamber (151); an air guiding channel (400), guiding the air flow at the bottom of the air channel (300) to an air vent port (321) at top of the air channel cover plate (200). The controller adjusts the operation states of the air supply device (700) and the compressor according to the temperature and humidity measured by a temperature and humidity measuring member (800).\nC: An alcoholic drink pourer for cooling alcoholic drink. The alcoholic drink pourer comprises an alcoholic drink through plug body (10) and a cold storage bar (20). One end of the alcoholic drink through plug body (10) can be plugged into an alcoholic drink bottle mouth. A flexible rubber sleeve (11) used for being plugged into the alcoholic drink bottle mouth and hermetically fixed onto the alcoholic drink bottle mouth is sleeved on the alcoholic drink through plug body (10). The cold storage bar (20) is detachably connected onto one end plugged into the alcoholic drink bottle mouth, of the alcoholic drink through plug body (10). A sealing cavity (21) is disposed inside the cold storage bar (20). A cold storage agent (30) is filled in the sealing cavity (21). An alcoholic drink pouring opening (12) is disposed in the top of the alcoholic drink through plug body (10). An alcoholic drink outlet hole (13) is disposed in one end capable of being plugged into an alcoholic drink bottle, of the alcoholic drink through plug body (10). A drainage pipe (14) is disposed between the alcoholic drink pouring opening (12) and the alcoholic drink outlet hole (13) in the alcoholic drink through plug body (10).\nD: A frequency conversion ultrasonic wine aging device for bottled wine comprises a base (1), and an opening portion formed by extending upwards along a peripheral edge of the base (2); a container is arranged in the opening portion and used for containing a sound conducting medium solution; when the frequency conversion ultrasonic wine aging device is used, a wine bottle (3) is placed in the container and immersed in the sound conducting medium solution; an ultrasonic transducer (21) and a control circuit board (23) are mounted in the base (2); the control circuit board (23) is provided thereon with an ultrasonic generating unit and an ultrasonic frequency modulation unit; the ultrasonic generating unit is used for converting a commercial power into an ultrasonic frequency alternating current signal; the ultrasonic frequency modulation unit serves to modulate the frequency of the ultrasonic frequency alternating current signal so that the frequency of the ultrasonic frequency alternating current signal varies cyclically within a set range; the frequency-modulated ultrasonic frequency alternating current signal is input into the ultrasonic transducer (21) to cause the ultrasonic transducer (21) to generate an ultrasonic wave; and the ultrasonic transducer (21) is used to transmit the ultrasonic wave into the container. The frequency conversion ultrasonic wine aging device can generate the best ultrasonic frequencies required for ripening and aging of various types of wines, and also realizes acceleration of a wine ripening process to achieve a quick aging effect.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA device for drinking water comprises a main body (1). The main body (1) comprises a base (11) provided with anti-slip pads (6), and the anti-slip pads (6) are to be in contact with a placement location, so that the device for drinking water will not easily slip when placed via the base, and is stably placed.\nA: Disclosed is a die fixing apparatus for a numerical control machine tool, the die fixing apparatus relating to the technical field of numerical control machining and comprising a bottom plate (1), wherein the center of the bottom plate (1) is connected to an air pipe (2) in an inserted manner; one end, away from the bottom plate (1), of the air pipe (2) is fixedly connected to a vacuum pump (3); an upper surface of the bottom plate (1) is provided with an anti-slip pad (4); an upper surface of the anti-slip pad (4) is fixedly connected to a suction cup (5); a suction hole (6) is provided inside the suction cup (5); one end, away from the vacuum pump (3), of the air pipe (2) is fixedly connected inside the suction hole (6); an outer surface of the suction cup (5) is fixedly connected to a fixing plate (7); the bottom of the fixing plate (7) overlaps the upper surface of the anti-slip pad (4); an upper surface of the suction cup (5) is provided with a fixing clamp groove (8); the fixing plate (7) is provided with a fixing clamp block (9) adapted to the fixing clamp groove (8); and an inner side of the fixing plate (7) is fixedly connected to an anti-slip plate (10). By means of the configuration of the air pipe, the fixing plate, the fixing clamp groove, the anti-slip plate, etc., the fixing apparatus can enhance the fixing effect and avoid a side face or the bottom of a workpiece being abraded by the apparatus during fixation; and by means of the configuration of a rubber plug, quick corrosion caused by a third screw and a third screw hole being immersed by a cooling liquid can be reduced.\nB: A device for drinking water comprises a main body (1) and a valve (2) which are detachably fixed. The main body (1) and the valve (2) are fixed in a detachable fixing mode, facilitating inspection and cleaning when a channel between the main body (1) and the valve (2) for transporting liquid is blocked.\nC: A decorative lamp, comprising a housing (1), a circuit board (2) fixed inside the housing (1), a bottle (4) fixed on the housing (1) and internally provided with a liquid, and a base (3) fixed at the bottom of the housing (1); the base (3) being larger than the bottom of the housing (1). The decorative lamp comprises a housing (1), a circuit board (2) fixed inside the housing (1), a bottle (4) fixed on the housing (1) and internally provided with a liquid, and a base (3) fixed at the bottom of the housing (1); thus when placing the decorative lamp, the base (3) makes contact with the placement position and the base (3) is larger than the bottom of the housing (1); in this way, stability is increased during placement of the decorative lamp and the decorative lamp is stable when placed, preventing it from damage when being placed.\nD: A hand-cranked music box comprising a housing (1), a sound cylinder provided with multiple protrusions, sound plates fitted with the sound cylinder, and a transmission gear fixed at one extremity of the sound cylinder, also comprising a crank handle (2) provided with a drive gear, where the drive gear is meshed with the transmission gear. An anti-slip pad (3) is provided at the bottom of the housing (1). Because the anti-slip pad (3) is provided at the bottom of the housing (1), the hand-cranked music box is not prone to slipping when being placed and is not prone to being damaged, thus allowing the hand-cranked music box to be placed stably, thereby preventing damages. When a user cranks the crank handle (2), the drive gear drives the transmission gear to drive the sound cylinder into rotation, and the protrusions on the sound cylinder generate vibrations with the sound plates to generate sounds, thus producing music.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are a filling body and the use thereof. The filling body comprises a surface fabric, a lining fabric and a filling material between the surface fabric and the lining fabric, wherein the ventilation capacity of the lining fabric is between 10.0 cm 3 /cm 2 /s and 200 cm 3 /cm 2 /s, and the filling material is a continuous fibre filling cotton with a core-sheath structure, wherein same at least comprises dacron continuous fibres. The filling body has the characteristics of a light weight, heat preservation and breathability, and also has an enhanced laundering durability and motion followability, while maintaining the original comfort.\nA: A structure preventing down feather displacement and penetration and maintaining fabric elasticity and a manufacturing process therefor. The structure comprises two fabric layers (1) and down feathers (2), wherein the down feathers (2) are filled into the space between the two fabric layers (1); the structure further comprises multiple connection points (3); the connection points (3) are used for positioning the down feathers (2) and distributing the down feathers (2) in a netted mode; the two fabric layers (1) both are an extended, elastic fabric, and the down feathers (2) are wrapped with elastic air-permeable films (4). The structure enables the fabric elasticity of elastic down feather products to be maintained to the maximum extent, enables the distribution of down feathers to be always kept even and prevents down feather penetration.\nB: A down fabric, comprising an inner fabric, an outer fabric, and an adhesive layer; the inner fabric comprises a first down cladding layer (1) and a basal body silky layer (2); the outer fabric comprises a second down cladding layer (3) and a windproof layer (4); sealed down bulges (5) are regularly arranged between the first down cladding layer (1) and the second down cladding layer (3); the cross section of the down bulges (5) is honeycomb-shaped; the down bulges (5) are filled with down; and the intersections of adjacent down bulges (5) are respectively adhered to the first down cladding layer and the second down cladding layer by means of the adhesive layer. Because the down bulges are filled with down, and the cross section of the down bulges is honeycomb-shaped, seamless connection is achieved among adjacent down bulges (5), avoiding poor thermal insulation performance caused by too large down intervals; moreover, the intersections of adjacent down bulges (5) are respectively adhered to the inner fabric and the outer fabric by means of the adhesive layer, to avoid the problem of down drilling-out caused by thread connection.\nC: A filling object. The filling object is provided with covering cloth (1), lining cloth (2) and a filling material. The filling material is made of long fiber cotton (3). The filling material and the lining cloth (2) are integrally formed, and the covering cloth (1) and the lining cloth (2) are integrally formed. The covering cloth (1) and the filling material are indirectly connected by means of the lining cloth (2). The filling object can improve performance of resisting again down leakage, and alleviate the problems of deviation and caking of the filling material after being washing. In addition, the fluffy performance of the filling material is good, the filling material has the feature of having a light weight and keeping warm, and provides the style of softness and smoothness for hand feeling, and has good performance of sustaining machine washing, and can be used to replace eiderdown filling products.\nD: A double-sided knitted fabric comprises a surface layer (1) and an inner layer (2), which are connected in a looping manner. The inner layer (2) has a concavo-convex structure, and at least one of the longitudinal and lateral directions of each convex portion unit (3) is composed of 3 to 10 loops. The skin-contact surface of the double-sided knitted fabric has excellent dry performance, has a good comfort level for wearing, especially is suitable for production of T-shirts, POLO shirts and the like.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA filling object. The filling object is provided with covering cloth (1), lining cloth (2) and a filling material. The filling material is made of long fiber cotton (3). The filling material and the lining cloth (2) are integrally formed, and the covering cloth (1) and the lining cloth (2) are integrally formed. The covering cloth (1) and the filling material are indirectly connected by means of the lining cloth (2). The filling object can improve performance of resisting again down leakage, and alleviate the problems of deviation and caking of the filling material after being washing. In addition, the fluffy performance of the filling material is good, the filling material has the feature of having a light weight and keeping warm, and provides the style of softness and smoothness for hand feeling, and has good performance of sustaining machine washing, and can be used to replace eiderdown filling products.\nA: A device for spreading a filler material on a bevel comprises: a storage compartment (1); a spreading mechanism (2); and a control mechanism (4). The storage compartment (1) is used to store a filler material. The storage compartment (1) comprises a top cover (13), a bottom plate, a front side plate (11), and a rear side plate (12). A discharge outlet is arranged at the bottom plate for the filler material to pass through. The spreading mechanism (2) is used to spread out the filler material. The control mechanism (4) is used to control opening and closing of the discharge outlet. A moving mechanism (3) is used to move the spreading mechanism. The moving mechanism (3) is provided at the bottom plate. The device of the present invention can improve efficiency of spreading a filler material, such that spreading quality of the filler material on a bevel is increased, thereby increasing welding quality, reducing labor intensity, and reducing production costs.\nB: Disclosed are an injection filling material and a preparation process. The filling material comprises the following raw materials in terms of percentage by mass: 0.1-2% of sodium hyaluronate, 1-30% of polyester microspheres, 0.1-5% of silk fibroin, 0.01-1% of recombinant type III collagen, with the balance being a dispersion liquid. The polyester material is artificially synthesized; the sodium hyaluronate and recombinant protein are prepared by means of a fermentation method; the silk fibroin is extracted from secretions of mulberry silkworms instead of animal tissues, and compared with collagen extracted from animal tissues, a decellularized matrix is biologically safer; and the added polyester microspheres can produce a sustained-release effect on a system, prolong the duration of validity of the filling material, and the filling material lasts longer compared to a single-component material. The filling material comprises type I collagen (silk fibroin), type III collagen (recombinant protein) and a carbohydrate nutrient substance (hyaluronic acid), which are required for tissue production, and can provide a complete external environment for tissue production.\nC: Provided are a filling body and the use thereof. The filling body comprises a surface fabric, a lining fabric and a filling material between the surface fabric and the lining fabric, wherein the ventilation capacity of the lining fabric is between 10.0 cm 3 /cm 2 /s and 200 cm 3 /cm 2 /s, and the filling material is a continuous fibre filling cotton with a core-sheath structure, wherein same at least comprises dacron continuous fibres. The filling body has the characteristics of a light weight, heat preservation and breathability, and also has an enhanced laundering durability and motion followability, while maintaining the original comfort.\nD: Disclosed is an inner rib structure for a maintenance wallboard. The inner rib structure comprises an inner rib structure plate body. Multiple through holes are formed in the inner rib structure plate body and used for inorganic material fillers on the two sides to pass through the inner rib structure and solidify to form a whole when the maintenance wallboard is manufactured. The inner rib structure plate body is a plastic steel plate, and a built-in cavity structure is provided on the plate body portion, without providing the through holes, on the plastic steel plate. When the inner rib structure provided in the present invention is utilized to manufacture the maintenance wallboard, the fluid inorganic filling materials on the two sides can pass through the through holes in the inner rib structure and solidify to form a whole. Even though the middle inner rib structure melts at a high temperature, due to the fact that inorganic filling material plates on the two sides solidify to form a whole, the inorganic filling material plates on the two sides are still complete and cannot be separated, and the maintenance wallboard cannot collapse. Due to the design of the built-in cavity structure, the consumption of the inorganic filling materials on the two sides can be reduced, the weight of the whole maintenance wallboard is reduced, and the structural strength of the whole maintenance wallboard is enhanced.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA MEMS gas sensor (A) and an array (B) thereof, and a gas detection and preparation method. The gas sensor (A) comprises a first substrate (A2) with a cavity (A1) provided in a first surface, and a gas detection assembly (A3) arranged at an opening of the cavity (A1), wherein the gas detection assembly (A3) comprises: a supporting suspension bridge (A31) erected on the opening of the cavity (A1), and a gas detection part (A32) arranged on the supporting suspension bridge (A31). The gas detection part (A32) comprises a strip-shaped heating electrode part (A321), an insulating layer (A322), a strip-shaped detection electrode part (A323) and a gas-sensitive material part (A324), which are sequentially stacked, wherein the strip-shaped detection electrode part (A323) comprises a first detection electrode part (A323-1) and a second detection electrode part (A323-2), with a first opening (A325) being provided between the first detection electrode part (A323-1) and the second detection electrode part (A323-2); and the gas-sensitive material part (A324) is arranged at the position of the first opening (A325), a first end of the gas-sensitive material part (A324) is connected to the first detection electrode part (A323-1), and a second end of the gas-sensitive material part (A324) is connected to the second detection electrode part (A323-2).\nA: A test chip, a preparation method therefor and a method of use thereof, and a reaction system. The test chip (100) comprises a first substrate (10), a micro-cavity definition layer (11) and a heating electrode (12), wherein the micro-cavity definition layer (11) defines a plurality of micro reaction chambers (110); the heating electrode (12) is configured to release heat after being electrified; the heating electrode (12) comprises a first electrode portion (121) and at least one second electrode portion (122); and the orthographic projection of the plurality of micro reaction chambers (110) on the first substrate (10) is located within the orthographic projection of the first electrode portion (121) on the first substrate (10), the orthographic projection of the plurality of micro reaction chambers (110) on the first substrate (10) does not overlap the orthographic projection of the second electrode portion (122) on the first substrate (10), and the resistance value of the first electrode portion (121) is greater than the resistance value of the second electrode portion (122). The test chip (100) has a good temperature control effect and high temperature increasing and decreasing efficiency, and is compatible with a semiconductor production line, and the production cost is low.\nB: A sensor apparatus, an electronic device, and a method for reducing signal noise. The sensor apparatus (10) comprises first detection regions (11) and a second detection region (12). Each first detection region (11) comprises at least one detection unit (A). The detection unit (A) comprises a first detection electrode (111) and a second detection electrode (112) opposite to each other, and a first insulation layer (113). The first detection electrode (111) is electrically insulated from the second detection electrode (112) by means of the first insulation layer (113). The second detection region (12) comprises at least one sensor unit (B). The sensor unit (B) comprises a first sensor electrode (121), a second sensor electrode (122), and a first light sensing layer (123). The first light sensing layer (123) is electrically connected to the first sensor electrode (121) and the second sensor electrode (122). The sensor apparatus, the electronic device, and the method for reducing signal noise can reduce the signal noise of signals to be detected, improve the signal-to-noise ratios, and avoid the use of a light shielding metal so as not to affect the display effect.\nC: A gas sensor based on a field effect transistor, and a manufacturing method therefor. The gas sensor comprises a substrate (1), an insulating layer (2), an active layer (3), a source (4), and a drain (5); the insulating layer (2) is disposed between the substrate (1) and the active layer (3); the source (4) and the drain (5) are separately disposed on the side of the active layer (3) distant from the insulating layer (2) and spaced from each other; the active layer (3) is formed of a titanium dioxide nanofiber or a zinc oxide nanofiber, which is easy to chemically react with VOC gas, improves the gas detection reaction speed and sensitivity, has a large specific surface area, and increases the sensing area. The size of the sensor can be smaller at the same reaction speed level and sensitivity precision; the titanium dioxide nanofiber or zinc oxide nanofiber is prepared by means of electrostatic spinning technology; the manufacturing method is simple; the electrostatic spinning device is simple in process and high in production efficiency; it is beneficial to application of the gas sensor in consumer electronics, and popularization thereof in more application scenarios.\nD: Disclosed is a physiological detection apparatus (100), comprising: at least one first detection electrode group (1), each first detection electrode group (1) including a first electrode (101) for coming into contact with the hand of a detected person, and a second electrode (102) for coming into contact with acupoint areas of the detected person; at least one second detection electrode group (2), each second detection electrode group (2) including a third electrode (201) and an opposite fourth electrode (202) which respectively come into contact with the periphery of acupoints of the detected person; and a micro-processor (3), wherein a human body loop is formed between the first electrode (101) and the second electrode (102) by means of a human body; a capacitor is formed between the third electrode (201) and the fourth electrode (202) by means of the skin of the detected person; the micro-processor (3) transmits a radio wave signal by means of the first electrode (101), receives, by means of the second electrode (102), the radio wave signal which is fed back, and calculates a first detection value by means of conversion; the micro-processor (3) detects a capacitance change and calculates a second detection value by means of conversion; and the micro-processor (3) analyses the first detection value and the second detection value to obtain a detection result. The physiological detection apparatus (100) detects the physiological state of a detected person in a non-intrusive manner, and thus does not bring discomfort and inconvenience to the detected person.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an aerogel fire-extinguishing agent, which comprises a modified silica aerogel and a silica sol. The aerogel fire-extinguishing agent is prepared by means of the following method: adding a silica aerogel into an aqueous polyethyleneimine solution with pH=5, and dispersing same until uniform to obtain a modified silica aerogel solution; and successively adding a silica sol and cellulose hydroxyethyl ether, and then dispersing same until uniform. The fire-extinguishing agent has a higher fire-extinguishing efficiency and a better ignition prevention effect.\nA: Provided is a composite thermal insulation material and a preparation method therefor. The composite thermal insulation material is a cement-based silicon dioxide aerogel-diatomite composite thermal insulation material, and comprising, by mass: 40 to 70 parts of silicon dioxide aerogel-diatomite material, 100 parts of cement, 0.4 to 1.2 parts of polypropylene fiber, 4.2 to 5.1 parts of a coupling agent, 0.56 to 1.2 parts of cellulose ether and 2.8 to 5.1 parts of redispersible latex powder. For the composite thermal insulation material, fly ash is taken as a raw material, and diatomite is taken as a strength supporting material; the silicon dioxide aerogel-diatomite material is obtained by means of steps such as high-temperature calcination, sol-gel treatment, negative-pressure adsorption, water bath modification, and normal-pressure drying; then the silicon dioxide aerogel-diatomite material, cement and a proper amount of additives are evenly dry-mixed; and water is added, and stirring is conducted to obtain the composite thermal insulation material. The preparation method is simple and low-cost, the application performance of the obtained composite heat preservation and insulation material is good, and the strength meets building use requirements.\nB: A composite aerosol fire extinguishing agent and a preparation method therefor. The composite aerosol fire extinguishing agent comprises, in percentage by weight: 8.6%-20.3% of calcium peroxide, 15.8%-27.7% of calcium sulfite, 8.4%-14.6% of modified starch, 9.2%-15.3% of carbon powder, 2.1%-8.3% of nano-crystalline cellulose, 9.6%-26.4% of basic copper carbonate, 3.5%-23.8% of sodium bicarbonate, 0.6%-3.8% of sodium alginate, and 0.9%-4.6% of epoxy resin. All the components of the aerosol fire extinguishing agent have an obvious synergistic effect, so that the whole aerosol fire extinguishing agent has high fire extinguishing capacity and fire extinguishing efficiency, has the advantages of small amount, high fire extinguishing speed, and high fire extinguishing efficiency, and is particularly suitable for extinguishing of oil fire sources.\nC: Peroral nanoscale cyclophosphamide particles and a preparation method thereof. Silicon dioxide aerogel is used as a carrier. For the silicon dioxide aerogel, the porosity is 95 to 99%, the pore diameter is 10 to 50 nm, the specific surface area is 200 to 1000 m 2 /g, the density is 3 to 300 kg/m 3 , the gel particle diameter of the formation network is 1 to 50 nm, and the cyclophosphamide is adsorbed in the hole of the silicon dioxide aerogel to form cyclophosphamide particles with the diameter less than 100 nm. The preparation method is as follows: first dissolving cyclophosphamide in anhydrous ethanol, adding the silicon dioxide aerogel, drying after full adsorption, then adding purified water, feeding into an emulsifying machine for emulsification, homogenizing through a high pressure homogenizer, and then drying.\nD: The present invention provides a nanoporous solid acid based on a silica aerogel and a preparation method therefor. In the nanoporous solid acid based on a silica aerogel of the present invention, the solid acid is dispersed in a nanoporous structure of the silica aerogel, and the weight ratio of the solid acid to the silica aerogel is 1:10-100. In addition, the present invention also provides use of the nanoporous solid acid based on a silica aerogel in catalyzing the Maillard reaction intermediate pyrolysis. The research finds that the nanoporous solid acid based on a silica aerogel of the present invention has higher catalytic activity than the conventional solid acid to the Maillard reaction intermediate pyrolysis, and can promote release of aroma substances.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a system for separating a mixed gas of xenon and krypton by using a hydrate method and an operation method thereof. The system comprises a gas hydrate generating unit, a heat exchange unit and a gas-water separating unit, wherein the main equipment of the gas hydrate generating unit is a reaction tower (1), in which a gas-liquid separating membrane (2) is placed at the bottom of a perforated plate (3) that the mixed gas first comes into contact with, and during the upstream movement of the mixed gas in the reaction tower, xenon gas comes into contact with water attached to the perforated plate (3) to generate a xenon hydrate particle; the main pieces of equipment of the heat exchange unit are a heat exchanger A (7-1) and a heat exchanger B (7-2); the main equipment of the gas-water separating unit is a gas-water separating tower (8), a gas-water two-phase flow containing xenon is pressurized by a delivery pump E (6-5) and then injected from the middle of the gas-water separating tower (8), xenon is separated from decomposed water under the action of gravity, then rises to the top of the tower, and is produced by a flow control valve E (5-6) after being dehumidified by a drying bed (9); and the decomposed water sinks to the bottom of the tower, is pressurized by a delivery pump F (6-6) and then enters the heat exchanger B (7-2) for heat exchange.\nA: A mining method and a mining device for a marine natural gas hydrate. The mining method comprises the following steps: 1. after construction of a vertical well is complete, constructing a fixed pipe (8), setting up a mining well in the center of the fixed pipe (8), and filling a space between an inner wall of the fixed pipe (8) and an outer wall of the mining well with a uniformly mixed mixture; 2. introducing a self-excited oscillation jet nozzle (6) into the mining well along the vertical well (22), and reaching a designated position through a hole on the mining well so as to perform spraying on the mixture, so as to evenly break the mixture such that an artificial crack is formed; 3. carrying out depressurization mining at a corresponding temperature, so that the hydrate decomposes to produce gas; and 4. separating in a gas-liquid separation device (20) a gas-liquid mixture mined from the mining well, so as to obtain a liquid and the gas, and collecting the obtained liquid and gas. The mining method has advantages such as stable decompression mining, increased mining efficiency, recovery of high-concentration natural gas, automatic operation, can be remote controlled, and can provide guidance for mining of marine natural gas hydrates.\nB: A test apparatus for separating and measuring generated gas, water, and sand during natural gas hydrate mining, and a method. The apparatus comprises a natural gas hydrate generation and decomposition system and a filter apparatus. The natural gas hydrate generation and decomposition system comprises a compressed air pump (51), a natural gas hydrate generation and decomposition reaction kettle (55), and a water bath constant temperature control apparatus. The filter apparatus comprises a filter apparatus kettle body (20). An inlet end of the filter apparatus kettle body is connected to a sand sieve pipe region, and the outlet end of the filter apparatus kettle body is connected to a water collection sealed container. Multiple filter layers are provided from the inlet end to the outlet end of the filter apparatus kettle body. The method and the apparatus can separate and measure the gas, water, and sand mixture during a simulated mining process and can more visually reflect the sand generation and prevention effect.\nC: Provided is a sea water desalination system using a flue gas hydrate method based on LNG cold energy, belonging to the technical field of hydrate application. CO2 in the flue gas is captured by means of the generation of a hydrate, two stages of hydrate generation chambers are provided for improving the yield of the hydrate, the CO2 hydrate is purified using two steps of gas separation and liquid separation, respectively, and two hydrate decomposition methods, i.e., a heat exchange-type hydrate decomposition method and an air extraction-type hydrate decomposition method, are respectively used to achieve the utilisation of the residual heat of the flue gas and the recycling of CO2. The integration of CO2 capturing and sea water desalination is realized, the problem of a cold energy source for the sea water desalination in the hydrate method is solved by using LNG cold energy, the structure is rational, and the system is exquisite; the two stages of hydrate generation chambers not only solve the problem of capturing CO2 in the flue gas, but also ensure the generation amount of the hydrate; two kinds of hydrate decomposition chambers not only result in the utilisation of the residual heat of hot flue gas and a reduction of heat discharge, but also realize the recycling and storage of CO2; and the sea water desalination system has a high bearing capacity to flue gas source changes, is not influenced by seasons and environments, and has a great practical application value.\nD: A method for separating a mixed gas of ammonia and carbon dioxide comprises: firstly compressing the mixed gas of ammonia and carbon dioxide; feeding the compressed gas to a carbon dioxide separation tower (3) after the pressure reaches 15-25 bar, and then feeding the gas to a water separation tower (5) and an ammonia separation tower (16) in sequence. A dilute ammonia-carbon aqueous solution is separated at the lateral line of the water separation tower (5). The compression of the mixed gas is divided into multiple stages, and a direct liquid-spray cooling method is adopted for inter-stage cooling. An air cooler is adopted instead of a cooler which adopts circulating cooling water as the cooling medium.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to the technical field of deep processing and comprehensive utilization of waste mineral oil sludge, in particular to a method and a system for recycling waste mineral oil sludge. The system comprises a filtering unit, a dechlorination unit, a tubular reaction unit, a retarding pyrolysis unit, a fractionation unit and a hydrofining unit. The present invention can not only solve the problem of deep processing and utilization of waste mineral oil sludge, save the environmental protection costs by deep processing and utilization of the sludge, but also obtain certain high additional value products and increase economic benefits. Moreover, a good raw material can be provided for a hydrofining reactor, and the lubricating oil recovery rate of the whole process of a waste mineral oil regeneration device is improved. Moreover, the process has the characteristics of high yield, less ash and carbon deposit, not easy to coke in a pipeline and easy continuous operation.\nA: Disclosed is a method for hazard-free treatment of a sludge from a spent solution of mixed acids after acid washing of stainless steel, comprising the following steps: 1) feeding a spent acid washing solution to a precipitation unit and performing a precipitation treatment, whereby a sludge is formed at the bottom of the precipitation unit from the spent solution of mixed acids; 2) filtering the sludge from the spent solution of mixed acids and feeding the sludge to a sludge storage unit and performing blending, mixing, and homogenization; 3) spraying the homogenized sludge into a calcination furnace to allow chemical reactions to occur, generating solid metal oxides, HF gas, and HNO 3  gas; and 4) discharging the solid metal oxides falling to the bottom of the calcination furnace by using a scraping rake, and allowing the HF gas and HNO 3  gas to exit the top of the calcination furnace, pass through a preconcentrator, and enter an absorption tower to undergo acid regeneration. The present invention can reduce the production of acidic sludge and decrease the treatment cost borne by a metallurgical enterprise. Moreover, the present invention allows reclamation of acidic sludge having a high economic value by increasing the recovery rate of F -  and NO 3 \n - , recovering abundant amounts of high-value metal ions, such as nickel, chromium, titanium, and molybdenum in the acidic sludge, and forming solid metal oxides having a high added value.\nB: A comprehensive processing method and comprehensive processing system for copper-containing sludge and circuit boards, the comprehensive processing method comprising: mixing and granulating copper-containing sludge and waste-activated carbon to obtain copper-containing sludge particles; performing side blowing smelting on the copper-containing sludge particles and a circuit board. The waste-activated carbon is used as a reducing agent and a partial combustion agent, which is mixed and granulated with the copper-containing sludge and then side blowing smelted with the circuit board; in addition, a waste mineral oil is used as a supplementary fuel, thereby further reducing the energy consumption costs of side blowing smelting; during the process of side blowing smelting, organic matter of the circuit board burns to generate heat, and the organic matter may be used as a fuel for side blowing smelting, thereby completing the separation of copper and other impurities from the copper-containing sludge and the circuit board, fully utilizing the heat energy of the organic matter in the circuit board, and further reducing the energy consumption costs of side blowing smelting.\nC: Disclosed is a process for producing mesophase pitch by hydrogenation of high-temperature coal tar, comprising removing salts and quinoline insolubles from the high-temperature coal tar to obtain a clear oil; using the clear oil as a hydrogenation feed oil, or pre-distilling the clear oil to obtain a bottom component with a boiling point higher than 230°C and formulating the bottom component into a hydrogenation feed oil; refining the hydrogenation feed oil by catalytic hydrogenation to obtain a refined hydrogenated oil; distilling the refined hydrogenated oil to obtain hydrogenated pitch; subjecting the hydrogenated pitch to thermal condensation polymerisation to obtain the mesophase pitch. The process has features such as an easily controllable degree of hydrogenation, complete removal of impurities, good raw material flowability, not being susceptible to carbon deposition and coking during the process, and not tending to block the reactor. The product has a high mesophase content, a low softening point and a low impurity content.\nD: A diesel oil and jet fuel production system and method utilizing Fischer-Tropsch synthetic oil. The method comprises two parts, hydrofining and hydro-upgrading, and comprises the following steps: mixing a Fischer-Tropsch synthetic oil with hydrogen and introducing the same into a hydrofining reactor (A), and introducing a product thereof into a first fractionating tower (C); taking a cut naphtha fraction as an ethylene cracking raw material, and introducing a diesel fraction into a hydroisomerization reactor (E); introducing an unconverted oil into a hydrocracking reactor (D), mixing the products of the two reactors and then introducing the mixed products into a second fractionating tower (F) to obtain a jet fuel and diesel oil product, and circulating the unconverted oil to the hydrocracking reactor (D). The method can produce diesel oil, jet fuel and a hydrotreating wax oil product, has a simple technique, a stable process, low equipment investment, low costs, a long running period, and a high yield of diesel oil and jet fuel which can directly serve as fuel or blending components.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA support column array having a variable elastic modulus, and a vacuum glass. A first ring of support columns in the variable elastic modulus support column array close to a sealed edge of the vacuum glass comprises low-elastic modulus support columns. A second ring of support columns close to the sealed edge of the vacuum glass comprises high-elastic modulus support columns. In this manner, rings of low elastic modulus support columns and rings of high elastic modulus support columns are alternately arranged in a direction leading away from the sealed edge of the vacuum glass, until the support columns are all arranged. The vacuum glass is formed from the varying elastic modulus support column array and flat glass. The varying elastic modulus support column array reduces the maximum stress and the maximum deformation sustained by the vacuum glass, thereby reducing glass damage and missing support columns. The arrangement of the varying elastic modulus support columns can be applied without changing the original array spacing of support columns of existing products, or using the array spacing of support columns in novel designs.\nA: An impact resistant vacuum glass, comprising a vacuum glass body. The vacuum glass body comprises a first glass substrate (1), a second glass substrate (2), a sealing material, and a support (3); the first glass substrate (1) and the second glass substrate (2) are arranged opposite to each other; the sealing material is provided at an edge position between the first glass substrate (1) and the second glass substrate (2); the first glass substrate (1), the second glass substrate (2) and the sealing material jointly enclose a vacuum chamber (4); the support (3) is provided within the vacuum chamber (4); a buffer material (6) is provided on the end face side of the periphery of the vacuum glass body and on the outside of at least one plate surface of the periphery of the vacuum glass body; a dynamic stress cancellation frame (7) is provided on the outer side of the buffer material (6), the dynamic stress cancellation frame (7) is capable of applying a adjustable preload force to the edge of the vacuum glass. The vacuum glass can significantly improve impact resistance performance.\nB: An inclination adjustable liquid crystal module packing box for assembling a liquid crystal module (20) comprises a box body (10), a bearing rack (30) and a first supporting assembly, wherein the bearing rack (30) is used for bearing the liquid crystal module and is connected to the bottom surface (11) of the box body through the first supporting assembly; the first supporting assembly comprises at least one group of first adjusting mechanisms (40) connected to one side of the bearing rack (30) and have adjustable elasticity; each first adjusting mechanism (40) consists of a first supporting column (41), an elastic member (42) and a positioning element (43); and the first supporting column (41) is telescopically connected to the bottom surface (11) of the box body through the elastic member (42) and is also provided with an elastic buckle (44) matched with the positioning element (43) to realize graded lifting of the first supporting assembly. Through the angle of the bearing rack, a PCB (Printed Circuit Board) is kept at a lower position of the inclination; even if bumping occurs during transportation, the PCB does not bend upwards because of the gravity action per se so as not to cause wrinkling of a COF (Chip On Film) or cause conflict damage to glass by the PCB.\nC: A novel outdoor leg press training device, comprising a support column (1), rotary shafts (2), chairs (3) and foot pedals (4), wherein the support column (1) is provided thereon with a plurality of tension springs (5) distributed along the height direction thereof, wherein different tension springs (5) have different elastic moduli; one end of the tension springs (5) is fixed to the support column (1), and the other end thereof is provided with a hook (6); the side surface of each rotary shaft (2) which is close to the support column (1) is provided with a hanging ring (7), and a hook (6) may be hung onto a hanging ring (7). The tension springs are added to an existing outdoor leg press training device, so that a trainee may select different tension springs to fix to the rotary shaft according to the strength condition of the trainee, thereby increasing or decreasing training difficulty. Therefore, highly-targeted leg press training may be achieved, and the user may achieve a better training effect.\nD: Disclosed are a device for connecting a crossbeam (3) with an upright pillar of a bunk bed, and a bunk bed. The upright pillar comprises a supporting pillar (1) and a connecting pillar (2). An end part of the crossbeam (3) is provided with a connecting base (4); the connecting base (4) is provided with a vertically penetrated conical hole; a shaft sleeve (5) is movably arranged in the conical hole; an outer surface (5-1) of the shaft sleeve (5) and a side surface (4-1) of the conical hole form a pair of inclined surfaces matching each other. An end surface of the connecting pillar (2) is provided with a plurality of grooves (2-2), so that a plurality of elastic clamping jaws (2-1) are formed on an end part of a sidewall of the connecting pillar (2); one end of the supporting pillar (1) is inserted into the connecting pillar (2); the shaft sleeve (5) is sleeved on the connecting pillar (2); the connecting base (4) compresses the shaft sleeve (5) so that the two inclined surfaces (4-1), (5-1) are tightly pressed together, and the shaft sleeve (5) forces the elastic jaws (2-1) to bend inward to be deformed to tightly hold the supporting pillar (1). The connecting base (4) is utilized to compress the shaft sleeve (5) so that the two inclined surfaces (4-1), (5-1) are tightly pressed together, and the shaft sleeve (5) forces the elastic jaws (2-1) to bend inward to be deformed to tightly hold the supporting pillar (1); thereby, the connecting pillar (2), the supporting pillar (1) and the crossbeam (3) are firmly connected together, and disassembly and assembly are very quick and simple.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a method for preparing hollow glass microbeads with a high floatation rate, and the production process and steps thereof comprising: 1) preparation of a slurry: accurately weighing the components of basic raw materials, a stable dispersant and a surfactant, wherein the components of the basic raw materials are quartz, borax, calcium carbonate, sodium carbonate, sodium sulfate, and sodium phosphate; 2) preparation of a precursor; 3) preparation of hollow glass microbeads; and 4) surface modification. The stably dispersed slurry prepared by the method of the present invention has a high solid phase content, and low surface tension and viscosity, such that the energy consumption of spray granulation is not only significantly decreased, but also the prepared precursor has a small particle size span and uniform composition. In combination with a high-temperature negative-pressure vitrification process, the hollow glass microbeads are enabled to have a floatation rate of higher than 96.5% and a high surface finish, and furthermore, the hollow glass microbeads are strengthened by using low-temperature circulating wind. The raw materials of the present invention are easily available, the conglomeration rate of the hollow glass microbeads is high, and the present invention is simple in technological process, and low in energy consumption and production cost, and the product has a wide range of application.\nA: Disclosed are a structural sealant for a glass curtain wall and a preparation method therefor. A formula of the structural sealant comprises: hydroxyl-terminated polydimethylsiloxane, acrylic acid, aconitic acid, polypropylene powder, bis(3,4-diphenylmethylene)sorbitol, trimethoxyboroxine, 2-amino-N-cyclohexyl acetamide, vinyl tris(methylethylketoximino)silane, ethylene glycol glycidyl ether, dibutyltin mercaptide, a hollow glass bead, Methyltris(methylethylketoxime)silane, 3-triethoxysilylpropylamine, dibutyltin dilaurate, ammonium persulfate, ferric acetylacetonate, sodium silicate, dimethylbenzylcarbinyl acetate, pentaerythritol, and fluorocarbon resin FEVE. The present invention has the following beneficial effects: the structural sealant in the present invention is excellent in mechanical strength, does not need base coat, and has good cohesiveness, excellent comprehensive performance, good aging resistance and high displacement capability. The structural sealant has excellent flame resistance, and a small amount of flame retardant is added, so that the influence on comprehensive performances of the sealant is small.\nB: A low-density conductive polypropylene composition, comprising the following components in parts by weight: 80-90 parts of PP resin, 5-15 parts of hollow glass beads, 3-8 parts of MWCNT, and 0.1-3 parts of an auxiliary agent. The selection of hollow glass beads as a dispersing component effectively improves the dispersion of MWCNT in the polypropylene system, so that the surface resistance of the prepared material is in the range of 104-10 2 Ω/sq; in addition, due to the low density of the hollow glass beads, the material exhibits low-density characteristics. Also disclosed are a preparation method for the low-density conductive polypropylene composition, and an application thereof.\nC: An energy-saving thermal insulation material for use in buildings and a preparation method therefor. The thermal insulation material is made of the following raw materials in parts by weight: 30-50 parts of light stucco stone, 13-20 parts of expanded perlite, 7-13 parts of light calcium, 10-15 parts of methyl fiber, 9-15 parts of sepiolite, 5-8 parts of diatomite, 3-6 parts of fibrous brucite, 10-15 parts of plant fiber extract, 1-4 parts of 2-maleate monobutylate, 2-3 parts of 1,2,3-glycerol monooctadecyl ester, 1-3 parts of lithium citrate, 2-5 parts of hollow glass microspheres, 3-6 parts of sodium lignosulfonate, 1-3 parts of sodium silicate, 2-4 parts of magnesium oxide, 1-4 parts of n-octanol, 1-2 parts of isocyanate, 1-2 parts of hydrogenated chlorofluorocarbon, 3-8 parts of a water reducing agent, 1-4 parts of a foaming agent and 2-6 parts of a stabilizer.\nD: A microcrystalline foam glass and a preparation method therefor. The preparation method comprises the following steps of: S1, preparation of basic glass powder: raw material balls are milled and mixed evenly and placed in a frit furnace, and after melting, clarifying, homogenizing, water quenching, and grinding, the basic glass powder is obtained, and the raw material comprises the following components in percentage by mass: 70%-80% of gold tailing, 5%-15% of blast furnace slag, 2%-9% of bentonite, 5%-10% of soda ash, 0.2%-0.5% of antimony trioxide, and 1%-3% of titanium dioxide; and S2, preparation of the microcrystalline foam glass: the basic glass powder prepared in step S1 is milled and mixed evenly with silicon carbide micropowder and sodium fluorosilicate balls and then fed into a high-temperature furnace for firing, and the mixture is prepared from the components in percentage by mass: 94.8%-98.5% of the basic glass power, 0.2%-0.6% of the silicon carbide micropowder, and 1%-5% of sodium fluorosilicate.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is method for preparing a deoxycholic acid or ester thereof or pharmaceutically acceptable salt thereof. The compound is suitable for removing fat deposition.\nA: The present invention relates to the technical field of medicine, and relates in particular to a hexanone glycokinase inhibitor compound, a pharmaceutically acceptable salt thereof, an ester thereof or a stereoisomer thereof, a pharmaceutical composition and preparation comprising the compound, the pharmaceutically acceptable salt thereof, the ester thereof or the stereoisomer thereof, a method for preparing the compound, the pharmaceutically acceptable salt thereof, the ester thereof or the stereoisomer thereof, and a use of the compound, the pharmaceutically acceptable salt thereof, the ester thereof or the stereoisomer thereof in the preparation of a drug for the treatment and/or prevention of diseases mediated by KHK and related diseases. (I)\nB: The present invention relates to a method for preparing a chenodeoxycholic acid derivative. Particularly, disclosed is a method for carrying out one-pot reduction on a compound represented by formula (Ⅵ), i.e., 3α-hydroxyl-ethidene-7-ketone-5β-chole-24-alkamide, to obtain a compound represented by formula (Ⅴ), i.e., 3α,7α-dyhydroxyl-6α-ethyl-5β-cholanic acid, and then carrying out salt formation crystallization to obtain a high-purity obeticholic acid sodium salt, a potassium salt, a magnesium salt, and a calcium salt.\nC: The present invention relates to the technical field of medicine, in particular to a tricyclic USP1 inhibitor compound, a pharmaceutically acceptable salt thereof, an ester, a deuterated substance or a stereoisomer thereof, a pharmaceutical composition and a preparation containing the compound, the pharmaceutically acceptable salt, the ester, the deuterated substance or the stereoisomer, and a method for preparing the compound, the pharmaceutically acceptable salt, the ester, the deuterated substance or the stereoisomer, and use of the compound, the pharmaceutically acceptable salt, the ester, the deuterated substance or the stereoisomer in the preparation of a medicine for treatment and/or prevention of diseases mediated by USP1 and related diseases.\nD: The present invention relates to the technical field of medicine, and particularly relates to a tricyclic ubiquitin specific protease 1 inhibitor compound; a pharmaceutically acceptable salt thereof, an ester thereof, a deuterated compound or a stereoisomer thereof; a pharmaceutical composition and a preparation containing the compound, the pharmaceutically acceptable salt thereof, the ester thereof, the deuterated compound or the stereoisomer thereof; a method for preparing the compound, the pharmaceutically acceptable salt thereof, the ester thereof, the deuterated compound or the stereoisomer thereof; and use of the compound, the pharmaceutically acceptable salt thereof, the ester thereof, the deuterated compound or the stereoisomer thereof in the preparation of a drug for treating and/or preventing diseases mediated by USP1 and diseases related thereto.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for separation and quantitative analysis of pre-β1-HDL in serum by nonlinear gradient gel electrophoresis. The invention has the advantages that the preparation process of the nonlinear concentration gradient independent layering is simple and easy, wherein no special mixing device is needed; the electrophoresis is implemented for less than or equal to 3.5 hours, and the quantitative method does not require any radioactive substance. The nonlinear gradient gel electrophoresis can accurately detect the preβ1-HDL, demonstrating obvious superiority in performance.\nA: An image reconstruction method and apparatus in nonlinear gradient imaging, and a computer readable storage medium. The method comprises: calculating an O-Space nonlinear gradient magnetic resonance imaging echo at each center placement of a target image space position on the basis of an encoding phase (S101); calculating an O-Space nonlinear gradient magnetic resonance imaging signal on the basis of a magnetic resonance signal; then simplifying the O-Space nonlinear gradient magnetic resonance imaging signal as a minimization function; and calculating the minimization function on the basis of a primal dual algorithm and an approximate mapping algorithm to obtain a reconstructed target image (S104). According to the image reconstruction method, a primal dual algorithm capable of processing nonlinear transformation and an approximate mapping algorithm capable of directly processing a non-smooth function are used to perform image reconstruction for a target image, so that the problem in the prior art of poor quality of the reconstructed image resulting from smooth approximation needing to be performed on the target image such that a reconstruction signal being excessively smooth and losing image details is mitigated, the image definition can be efficiently improved, and the image details can be kept.\nB: A nonlinear self-correcting structured light three-dimensional measurement method and system for sinusoidal fringes. In the method, according to a nonlinear response of a system, a novel mathematical model of a direct current component is proposed; on the basis of the direct current component model, the respective modulation strength and mean intensity of three sets of sinusoidal fringes are adjusted; a nonlinear response equation is established, and a nonlinear relevant parameter of each pixel is calculated; the gray levels of fringe images are corrected by using an inverse function of the nonlinear response equation; wrapped phases and unwrapped phases are calculated according to the corrected fringe images; a three-dimensional point cloud is rebuilt according to triangulation, and a three-dimensional model of an object under detection is built, so that the three-dimensional measurement of the object is completed. According to the method, an increase in projection time and huge matrix inversion calculation time are not required, nonlinear errors under different frequencies and phases are reduced, and moreover, the wrapped phase precision and the unwrapped phase precision are improved, realizing high-speed and high-precision three-dimensional measurement.\nC: A fully automated high-precision capillary electrophoresis instrument, comprising an electrophoresis system, a sample injection flow path, and an automatic sampling flow path; the sampling flow path comprising a shunt waste bottle (4), which is connected to a four-way connector (3), and a four-way sample injection valve (5) and a buffer syringe pump (1); the four-way trace sample injection valve (5) is connected to the electrophoretic separation capillary of the electrophoresis system (7) and quantitatively injects samples into the separation capillary; the automatic sampling flow path comprises a sampling needle (15), a sample tray (16), a cleaning tank (17), reagent bottles (20), a buffer tube (14), a six-channel liquid dispenser (13), and a syringe pump (19); the three dispensing valves of the syringe pump (19) are connected to a cleaning liquid bottle (21), an autosampler waste bottle (22), and a buffer tube (14); the fixed interface of the six-channel liquid dispenser (13) is connected to the buffer tube (14); the six dispensing interface channels alternatingly switching connection to the fixed interface are connected to the sampling needle (15), the four-way connector (3), the four-way trace sample injection valve (5), and the three reagent bottles (20); the sampling needle (15) switches to insert into the cleaning groove (17) or the sample tray (16); the autosampler waste bottle (22) is connected to the four-way trace sample injection valve (5). The described capillary electrophoresis instrument has a fast sample injection speed, high accuracy, good reproducibility, and can be widely used in automated analysis of different substances by capillary electrophoresis.\nD: Disclosed in the present invention is a nonlinear optical crystal. The chemical formula of the nonlinear optical crystal is MHgGeSe 4 , M being selected from Ba or Sr. The nonlinear optical crystal has no symmetrical center, belongs to an orthorhombic crystal system, and has space group Ama2. The nonlinear optical crystal is a nonlinear optical crystal in infrared band, and has advantages of having a great nonlinear optical effect, a wide light transmitting band, a high hardness and good mechanical properties, being less brittle and less deliquescent, being easy to process and preserve, etc. Also disclosed in the present invention are a preparation method for the nonlinear optical crystal and use thereof.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a process for preparing a colour masterbatch, comprising the following steps: carrier grinding, colouring material grinding, accessory grinding, assistant agent grinding, mixed grinding, high-speed grinding, extrusion pelleting and drying. The colour masterbatch prepared by employing the process can be easily mixed with PET product plastics, and obtain the uniform colouring effect. The colour masterbatch not only improves the dispersibility, tinting strength and covering power, but also has the performances of weather resistance, acid resistance, heat resistance and cold resistance, and keeps the chemical stability of a pigment, such that the colour masterbatch is more environmentally friendly and healthier during use.\nA: Disclosed is a method for preparing a high-performance iron oxide red/clay mineral hybrid pigment by mechanochemistry, the method comprising mixing a clay mineral, a soluble iron source and an alkali source in a mill for grinding so as to obtain a precursor, wherein the ratio of balls to materials is controlled at 20-50, the grinding speed is 300-1200 rpm, and the grinding time is 30-360 min; and then calcining the precursor at 500ºC-900ºC for 30-120 min to obtain the high-performance iron oxide red/clay mineral hybrid pigment. The iron oxide red/clay mineral hybrid pigment has a bright and beautiful color, excellent high-temperature and acid resistance, and can satisfy requirements for high-performance iron oxide red pigments in the fields of paints, inks, ceramics, anti-corrosive coatings, etc. Furthermore, the preparation method of the present invention does not produce the three wastes, and is a simple process that is environmentally friendly and suitable for industrialized production, thus it is expected to replace existing production processes of iron oxide red pigments.\nB: A masterbatch composition, comprising a thermoplastic polyester, a yellow colorant component, a red colorant component, and a blue colorant component. The yellow colorant component is selected from Pigment Yellow 147, Pigment Yellow 18, Pigment Yellow 183, Dye Brown 53, or a combination thereof. The red colorant component is selected from Pigment Red 22, Pigment Red 144, Pigment Red 202, Pigment Red 214, or a combination thereof. The blue colorant component is selected from Pigment Blue 60, Dye Blue 67, or a combination thereof. The present invention further provides a colloidal particle that is obtained by developing the above masterbatch composition in a base material mainly composed of a thermoplastic polyester. An article produced from the present disclosure has an effect of slowing down and reducing heat absorption, and can maintain its original color during processing.\nC: The present invention provides a method for preparing a high temperature resistant bismuth yellow pigment under mechanochemical assistance. The method comprises: mixing an oxide which is used as a matrix and a dopant with a bismuth source, a vanadium source, or a molybdenum source, and placing the mixture into a mill for controlled grinding to obtain a precursor; further calcining and pulverizing the precursor to obtain high temperature resistant bismuth yellow pigment powder. The bismuth yellow pigment produced in the present invention has a bright color, and a b* value is greater than 90; the performance is stable, and the heat resistance can reach 800 °C or higher. By adoption of a mechanical grinding method, the preparation process is environmentally friendly, and no three wastes are produced, and reaction conditions are simple. Doping of BiVO 4  crystal lattices by introducing oxides can be achieved, so that the particle size and particle size distribution of the bismuth yellow pigment can be effectively controlled while the color performance of the bismuth yellow pigment is greatly improved; on the basis of the oxide doping, the heat resistance of the bismuth yellow pigment can be significantly improved without covering the surface of bismuth vanadate with a layer of solid deposits.\nD: Provided are a method for preparing a lake pigment, a lake pigment and the use thereof, which belong to the technical field of lake pigments. The method for preparing a lake pigment involves adding a solution containing at least two metal ions to an acidic aqueous solution containing a pigment raw material, reacting same to obtain solution A, further adding a chelating agent solution to the solution A, and carrying out a chelation reaction at a pH of 6-8 to obtain the lake pigment. The preparation method is simple in process and convenient in operation, and the prepared lake pigment has a small particle size, a high coloring property, and an excellent heat stability, acid and alkali resistance and light resistance, thereby broadening the scope of application of the lake pigment, and solving the technical problems of lake pigments prepared by using existing preparation methods having a larger particle size, a low coloring property, limited applications, and none of the light resistance, acid and alkali resistance, heat resistance, etc., thereof being ideal. Also provided is a lake pigment prepared by using the preparation method. Also provided is the use of the lake pigment in dyes, printing inks, pigments, inks, medicines, cosmetics or foods.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA process and apparatus for scrap tire pyrolysis and material discharging. The apparatus comprises a material chamber (1). A material-discharging mechanism, a sealing apparatus, and a baffle (14) are arranged in the material chamber (1). The material-discharging mechanism comprises sequentially from outside to inside a drum (2), turntables (3), and an eccentric shaft. A rotary sleeve (4) is provided between the turntables (3) and the eccentric shaft. The eccentric shaft is constituted by shaft I (5) and shaft II (6) that are integrally arranged. The axis of shaft I (5) is located above the axis of shaft II (6). The drum is concentric with shaft I (5). The turntables (3) are sleevedly connected onto both ends shaft II (6) and are concentric with shaft II (6). An opening is provided on the drum (2). Connecting rods (8) are provided on the turntables (3). A telescopic rod set movably embedded into the opening is provided between two turntable connecting rods (8). The sealing apparatus is connected to the bottom extremity of the baffle (14). The sealing apparatus and the baffle (14) are arranged at where the telescopic rod is shortest on an outer barrel. By employing interactions of an eccentric structure and a sealing structure, implemented is whole-tire continuous pyrolysis and material discharging in a sealed state, thus providing a novel approach for scrap tire pyrolysis.\nA: A roller nip adjusting mechanism of a feeding apparatus, comprising two mounting plates (4). A stationary roller is mounted between the mounting plates (4) and a movable roller is provided in parallel with the stationary roller. The movable roller comprises a roller (6) and an eccentric shaft (5). The eccentric shaft (5) consists of mounting sections at both ends thereof and an eccentric section in the middle thereof. The axis of the eccentric section deviates from that of the mounting sections. The mounting sections are rotatably mounted on the mounting plates (4), and the mounting section at one end passes through the mounting plate (4). A locking block (7) and a connecting block (8) are provided at the end of the mounting section that extends out. The connecting block (8) is connected with a handle (9). The locking block (7) is provided with a round hole. The locking block (7) is fitted over the end of the mounting section that extends out, wherein one side of the locking block (7) is fixed to the mounting plate (4), and the other side thereof is provided with a lateral opening (15) extending to the round hole. The locking block (7) is provided with a locking screw (10) which passes through the lateral opening (15). The apparatus has a simple structure and is easy to adjust.\nB: A vertical waste tire treatment and recycling system, the system comprising: a vertical cracking furnace (1), a feeding port (2), a first valve (3), a second valve (10), a buffer tank (4), a distillation still (5), a heat exchanger (6), an oil storage tank (7), a fan (8), a gas storage tank (9), a waste trough (12), a storage tank (9) and a magnetic separator (11), wherein a gas output opening of the vertical cracking furnace (1) is connected to the first valve (3) by means of a pipeline; the first valve (3) is connected to a gas inlet of the buffer tank (4) by means of a pipeline; a gas outlet of the buffer tank (4) is connected to a gas inlet of the distillation still (5) by means of a pipeline; a gas outlet of the distillation still (5) is connected to a gas inlet of the heat exchanger (6) by means of a pipeline; a gas outlet of the heat exchanger (6) is connected to the oil storage tank (7) by means of a pipeline; a gas output opening is further provided at the top of the oil storage tank (7), and the gas output opening is connected to a gas inlet of the fan (8) by means of a pipeline; a gas outlet of the fan (8) is connected to the gas storage tank (9) by means of a pipeline; and a discharge port below the vertical cracking furnace (1) is connected to the second valve (10) by means of a pipeline.\nC: An automated opening/closing mechanism comprising a drum (1), a closing mechanism (2), connecting rod I (3) connected to the closing mechanism (2), and connecting rod II (4) connected to connecting rod I (3). Transmission rod I (5) is arranged at where connecting rod I (3) and connecting rod II (4) are connected. Transmission rod II (6) is arranged at an extremity of connecting rod II (4). Weight wheel I (7) capable of sliding vertically along wheel groove I (12) is arranged on transmission rod I (5). Weight wheel II (8) capable of sliding vertically along wheel groove II (9) is arranged on transmission rod II (6). Limiting apparatus I (10) and limiting apparatus II (11) matching weight wheel I (7) and weight wheel II (8) are arranged in the drum (1). As such, by employing a simple structure, automated opening/closing of the opening/closing mechanism is implemented insofar that the drum is rotating, the need for manual operation is obviated, and convenience is provided for actual production.\nD: A magnetic separator for screening small particulate matters, comprising: a box body (1), a waste hopper (4), a magnetic roller (5) and a cleaning partition board (6), wherein the box body (1) is rectangular, the lower part of the box body (1) is fixedly connected to the waste hopper (4), one side of the box body (1) is provided with a feed port (2), one side of the box body (1) away from the feed port (2) is provided with a discharge port (11), a rectangular magnetic separation port (10) is provided in a bottom plate (3) of the box body (1), the magnetic roller (5) is located below the magnetic separation port (10), the magnetic roller (5) is rotatably connected to the waste hopper (4), a first baffle (7) is arranged at one side of the magnetic separation port (10) close to the feed port (2), a second baffle (8) is arranged at one end of the magnetic separation port (10) close to the discharge port (11), and the cleaning partition plate (6) is tangent to the lowest point of the magnetic roller (5). By using the characteristic that the small particulate matters can be blown up, the magnetic separator carries out magnetic separation on the small particulate matters moving in the air, thereby realizing the screening of waste tire carbon black, and improving the production quality of the waste tire carbon black.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA treatment method for implementing efficient resource utilisation of waste plastic (5), the treatment method comprising using high temperature liquid (4) to directly heat the waste plastic (5); the temperature of the high temperature liquid (4) needs to enable the waste plastic (5) to undergo a thermal cracking reaction in the high temperature liquid (4) to generate pyrolysis oil and slag. The high temperature liquid (4) may be a molten metal or metal alloy, or the high temperature liquid (4) may be a molten inorganic salt or inorganic base, or the high temperature liquid (4) may be a dual-layer liquid formed of a molten metal or metal alloy and a molten inorganic salt and/or inorganic base.\nA: The present invention relates to a system and process of industrial continuous cracking of mixed waste plastics according to class, the system comprising: an extrusion dryer; first and second stage lifting screw conveyors; a catalytic mixing cylinder; a semi-plasticizing feeder; first, second and third stage cracking reaction furnaces; slag discharging first, second and third stage screws; a separator; a slag storage tank; first, second and third basket-type filters; first, second and third stage settling towers; air-cooling first, second and third heat exchangers; water-cooling first, second and third stage heat exchangers; first, second and third stage gas-liquid separation tanks; first, second and third oil tanks; a non-condensable combustible gas purifier; a tail gas treatment module; a combustion chamber; and a combustor. In the present invention, according to the characteristics of different types of plastic and different cracking temperatures, a method for cracking mixed plastics according to class is provided, and the economic value added of the product of cracking is increased by independently recycling a cracked oil product; in addition, energy consumption during the cracking process is reduced by means of the recycling combustion of non-condensable combustible gas and the recycling of high-temperature waste heat, and waste gas passes through multiple purification steps, thus preventing environmental pollution.\nB: A liquid treatment device, a heat exchange device (4), a heat exchange box (10), a liquid heating appliance (20), a control method for the liquid heating appliance (20), a control device for the liquid heating appliance (20), and a computer-readable storage medium (90). The liquid treatment device comprises: a liquid inlet channel; a liquid outlet channel (32) and a heat exchange device (4); and a heating assembly. When outputting a liquid such as water having a relatively low temperature, the liquid treatment device can first heat the liquid such as water to a relatively high temperature by means of the heating assembly, so as to realize high-temperature sterilization, and then performs, by means of the heat exchange device (4), heat exchange to cool the liquid such as water which has been heated to a relatively high temperature to a temperature required by a user and then discharge same, so that a liquid such as water having a specified temperature can be outputted; in addition, performing high-temperature sterilization or disinfection on the liquid such as water which has a relatively low temperature before outputting same can remove bacteria and microorganisms in the liquid, thereby ensuring that the output low-temperature liquid is clean and sanitary.\nC: A rare earth metal and a rare earth metal alloy and a method for the preparation of these by molten salt electrolysis. In the method, the electrolyte is an alkali metal or the chloride-fused salt of an alkaline earth metal, the positive electrode is an inert electrode or graphite, the negative electrode is composed of a rare-earth metal oxide or a rare-earth metal oxide and the oxides of other alloy components and/or metal powders, and electrolysis is induced by the passage of a direct current. During the electrolytic process, the temperature of electrolysis is higher than the melting point of the rare earth metal alloy or of the rare earth metal produced, and lower than the melting point of the negative electrode; the surface layer of the negative electrode is in the first stage electrolyzed to a liquid metal film which accumulates to a certain volume before falling to the crucible at the bottom. The current density of the negative electrode is sufficient to separate out from said negative electrode the components of the rare earth metal alloy or the rare earth metal. The electrolysis voltage is lower than the decomposition potential of the electrolyte and higher than the decomposition potential of the oxides corresponding to each component of the rare earth metal alloy or to the rare earth metal. The rare earth metal alloy or the rare earth metal obtained through the present method is in a liquid state and is collected in a crucible. The present method is technically simple and environmentally-friendly, while featuring low energy consumption, high current efficiency, and low costs.\nD: An energy conserving sludge drying system comprising: a vacuum heating unit (10), an incineration unit (30), a vacuum cooling unit (20), and a molten-salt heat exchange unit (40). The vacuum cooling unit (20) comprises: a high-temperature gas inlet (202), a condensate outlet (203), a low-temperature gas outlet (204), a low-temperature liquid inlet (205), and an intermediate-temperature liquid outlet (206). The high-temperature gas inlet (202) of the vacuum cooling unit (20) communicates with the vacuum heating unit (10). The incineration unit (30) comprises: an incinerator (301), an incineration gas inlet (302), an oxidant gas inlet (305), a smoke discharging port (303), a cold molten-salt inlet (306), and a hot molten-salt outlet (307). The incineration gas inlet (302) communicates with the low-temperature gas outlet (204) of the vacuum cooling unit (20). The molten-salt heat exchange unit (40) comprises: a cold molten-salt outlet (402), a hot molten-salt inlet (403), an intermediate-temperature liquid inlet (404), and a high-temperature liquid outlet (405). The cold molten-salt outlet (402) communicates with the cold molten-salt inlet (306) of the incineration unit (30). The hot molten-salt inlet (403) communicates with the hot molten-salt outlet (307) of the incineration unit (30). The intermediate-temperature liquid inlet (404) communicates with the intermediate-temperature liquid outlet (206) of the vacuum cooling unit (20). The high-temperature liquid outlet (405) communicates with the vacuum heating unit (10).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn oil sludge pyrolysis device, comprising an outer cylinder body (1) and an inner cylinder body (2), a spiral conveyor belt (3) being provided on an inner wall of the inner cylinder body (2), and a thermally conductive pipe (4) being provided on the spiral conveyor belt (3). Said device enlarges the heat exchange area during oil sludge pyrolysis, improves the heat exchange efficiency and the heat utilization rate, and increases the pyrolysis speed of oil sludge at a low temperature.\nA: A material guide device of a three-barrel drying machine, comprising a composite cylinder body sleeved by three cylinder bodies having different diameters from large to small in a concentric mode, a feeding device (1) provided on one side of the composite cylinder body, and a transmission device (2) provided at the lower end of the composite cylinder body; wherein inner walls of an outer cylinder body (3), an intermediate cylinder body (4) and an inner cylinder body (5) are respectively provided with a spiral material raising plate; outer walls of the intermediate cylinder body (4) and the inner cylinder body (5) are respectively provided with a radial material lifting plate; one end of the inner cylinder body (5) is a material feeding port (6); the other end of the outer cylinder body (3) is a material discharging port (7); a material guide device is provided on the material discharging port (7) of the outer cylinder body (3); the material guide device comprises a mounting plate (8) and several arc material guide plates (9) uniformly provided on the mounting plate (8); a middle portion of the mounting plate (8) is provided with a mounting hole (10) cooperating with the material discharging port (7); and the mounting plate (8) is mutually welded to the inner wall of the outer cylinder body (3). The device has an advantage that the material discharging is more smooth, is simple in structure, and is convenient to use.\nB: A solid hazardous waste pyrolysis process and full-set equipment, the equipment comprising a special pyrolysis box for solid hazardous waste and intermittent pyrolysis equipment. The intermittent pyrolysis equipment comprises an outer barrel (2) and a rotatable inner barrel (4); at least one pyrolysis material placement area is formed in the inner barrel (4); the placement area is formed by multiple groups of guide plates circumferentially arranged on the inner wall of the inner barrel and baffles (21) arranged on the top of guide plates at the two ends; each group of guide plates comprise vertical plates (7) and sieve plates (5) that are alternately connected; and a reaction medium (22) is provided at the bottom of the inner barrel (4). By employing the solid hazardous waste pyrolysis full-set equipment having the described structure, solid hazardous waste may be placed in the special pyrolysis box for solid hazardous waste; a box body is placed between the baffles of the pyrolysis material placement areas; after a pyrolysis device is sealed, heating may be carried out to start pyrolysis; the inner barrel rotates to drive the box body to rotate at the bottom of the inner barrel; and a material in the box body is heated, melts and falls onto the reaction medium below, thus completing pyrolysis of solid hazardous waste.\nC: A conveying and cooling method for a high-temperature solid product obtained after waste plastic cracking. The conveying and cooling method comprises the following steps: 1) primary cooling: enabling the high-temperature solid product obtained after waste plastic cracking to enter a first spiral conveying apparatus (100) for cooling; 2) secondary cooling: enabling the solid product to enter a second spiral conveying apparatus (200) from the first spiral conveying apparatus (100) by means of a shifting device (500) for cooling; 3) tertiary cooling: enabling the solid product to enter a third spiral conveying apparatus (300) for cooling; and 4) storing and discharging: enabling the solid product to enter a storage tank (400), opening an electric valve (41), and discharging residues. High-temperature cracking residues are cooled in a staged mode by means of multi-stage spiral conveying; low-temperature discharging and conveying of the high-temperature residues are achieved; the residues are compressed and stacked in a spiral conveying process; self-sealing of the apparatus is achieved by means of natural gravity stacking of the residues; cracking gas is prevented from escaping; external gas is prevented from entering; and the sealing method is simple, effective and environmentally friendly.\nD: Provided is an industrial continuous oily sludge thermal decomposition equipment, belonging to the field of oily sludge treatment. The industrial continuous oily sludge thermal decomposition equipment comprises a cracking furnace and a heating chamber, wherein the heating chamber is arranged outside the cracking furnace, and the cracking furnace interior comprises a full high temperature region or a low temperature region-high temperature region. The cracking furnace is provided with a conveyor chain belt, and the conveyor chain belt can be multi-layered and staggered. The end of the conveyor chain belt is a discharge port, the discharge port is connected to one end of a rotary sealing joint, and the other end of the rotary sealing joint is connected with a cooling cylinder. In the equipment, the conveyor chain belt is staggered in the vertical direction, which increases the residence time of the oily sludge in the cracking furnace, so that the pyrolysis is more sufficient. Meanwhile the length and size of the equipment is shortened, which saves equipment investment. An AC variable frequency stepless speed regulating motor is used to adjust the speed of the conveyor chain belt, so that the pyrolysis rate and residence time can be effectively controlled, and the particle size and dryness of tailings can be precisely controlled.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn environmentally-friendly fin stamping oil, consisting of a narrow-cut isoparaffin base oil, a volatile synthetic ester, a Guerbet alcohol, and a copper corrosion inhibitor. The mass percent of the narrow-cut isoparaffin base oil in the fin stamping oil is 90%-95%; the mass percent of the volatile synthetic ester in the fin stamping oil is 1%-5%; the mass percent of the Guerbet alcohol in the fin stamping oil is 1%-5%; and the mass percent of the copper corrosion inhibitor in the fin stamping oil is 0.1%-0.5%. Also provided is a preparation method for the fin stamping oil, comprising: adding a narrow-cut isoparaffin base oil to a reaction kettle; then adding a volatile synthetic ester, a Guerbet alcohol, and a copper corrosion inhibitor; and stirring the mixture at room temperature to obtain an environmentally-friendly fin stamping oil. The present invention has a closed-cup flash point that may be more than 80°C, safety far greater than a conventional fin stamping oil, and volatility that may reach 100% at 140°C within 5 minutes, is gentle to hand, non-corrosive, and environmentally friendly, and features good biodegradability.\nA: Provided are a corrosion inhibitor having hydrate inhibition functions, a preparation method therefor and use thereof. The corrosion inhibitor comprises the following components by mass percentage: 1-30% of a halogenated pyridine quaternary ammonium salt, 55-94% of a solvent and 0.1-15% of an auxiliary agent. The corrosion inhibitor prepared in the present invention can simultaneously achieve corrosion protection and hydrate inhibition functions in steel pipeline devices, and further has the advantages of simple preparation compared with similar technologies. The corrosion inhibitor has a corrosion inhibition rate higher than 90% for corrosion of 20 # steel materials in an environment of 10-60 °C and H 2 S-CO 2 -Cl - and a degree of supercooling higher than 6 °C.\nB: The present invention relates to a sealant composition for repairing punctures on a tire and a preparation method therefor. The sealant composition comprises 80-95% in weight percentage of a liquid carrier, 0.1-10% in weight percentage of a gel material derived from a water-soluble polymer, 1-10% in weight percentage of a latex, 0.1-5% in weight percentage of rigid particles and 0.1-5% in weight percentage of a surfactant. 0.1-1% in weight percentage of additives, such as a defoaming agent, a preservative, an anti-corrosive agent, a colourant, a flavouring agent etc., can also be added into the sealant as required. The present invention also relates to a preparation method for the sealant composition.\nC: A tri-component mixing working medium suitable for waste heat recovery power cycle in an internal combustion engine, consisting of CO2, pentane, and a refrigerant. The refrigerant is any one of difluoromethane, fluorethan, and 1,1-difluoroethane. Depending on different selected refrigerants, the mass percentage of the components is as follow as: the mass percentage of CO2/pentane/difluoromethane is 30-70/10-20/10-60; the mass percentage of CO2/pentane/fluorethan is 30-70/10-20/10-50; the mass percentage of CO2/pentane/1,1-difluoroethane is 10-70/10-30/10-60. The tri-component mixing working medium has good environmental protection, safety, and thermodynamic property, and the thermal efficiency greater than 12%, can efficiently recycle the engine smoke and the waste heat energy of cylinder liner water, has the utilization rate of smoke greater than 60% and the utilization rate of cylinder liner water of 100%, and has the critical temperature significantly improved compared with that of CO2. The cooling condition of a system is relaxed to meet the waste heat recovery system requirement for a vehicle.\nD: Provided are a long-life synthetic high-temperature chain oil and method for preparation thereof; the total amount of synthetic ester base oil is 100 parts, and additives are 11.95–36.25 parts. Base oil is added to a product kettle for preheating; MDI is added to the product kettle, and upon stirring, is caused to melt completely, and is stirred for reaction; isotridecanol is slowly added to the product kettle, and warms upon being stirred, causing the materials in the kettle to react at a constant temperature of approximately 85–95°C; then water is added to the kettle and the constant-temperature stirring reaction is continued; heating up to 110–120°C is performed, and vacuum stirring and dehydration are performed; the vacuum is released and heating is stopped; high-temperature antioxidant, high-temperature anti-scorching agent, cleaning dispersant, and copper corrosion inhibitor are added to the kettle in sequence, and stirring is performed at constant temperature for 25–35 minutes; extreme pressure anti-wear additive is added to the kettle, and stirring is performed for 10–15 minutes to obtain a synthetic high-temperature chain oil. The present invention has outstanding oxidation stability, strong chain adhesion, high temperature of usage, and a long service life.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA composition and a laundry tablet for cleaning clothes and a preparation method therefor. The composition and the laundry tablet are composed of the following components: water, polyvinyl alcohol (PVA) or a modified polyvinyl alcohol (modified PVA), polyvinyl pyrrolidone (PVP) or a modified polyvinyl pyrrolidone (modified PVP) mixture, a potassium fatty alcohol sulfate, a sodium fatty alcohol sulfate, lauryl polyoxyethylene ether, citric acid, sodium carbonate, sodium hydroxide, a preservative, a plasticizer, a fatty acid potassium salt, and a fragrance. The composition for cleaning clothes has stronger detergency and better solubility. The invention ensures that clean laundry is softer and achieves an improvement of overall product performance.\nA: A spray type liquid bandage, comprising the following components in parts by weight: 20-30 parts of ethyl cellulose, 6-10 parts of carboxymethyl chitosan, 3-5 parts of a polyvinylpyrrolidone-vinyl acetate copolymer, 15-25 parts of ethanol, 20-25 parts of ethyl acetate, 25-40 parts of diacetone alcohol, 5-15 parts of isooctane, 5-15 parts of n-hexane, 5-15 parts of n-heptane, 1-5 parts of sodium dodecyl sulfate, 1-5 parts of Tween, 0.5-1.5 parts of glycerol, and 25-35 parts of distilled water. The ethyl cellulose, carboxymethyl chitosan and polyvinylpyrrolidone-vinyl acetate copolymer are used in combination as film-forming materials, and volatile solvent combinations and volatile aid combinations are used, and sodium dodecyl sulfate and Tween are used as surface tension modifiers, so that the formed film has good flexibility and elasticity, low bonding, low surface tension and good moisture retention.\nB: A cleaning liquid for washing a plate catalyst, comprising 5-10 wt% of dodecyl benzene sulfonic acid, 5-10 wt% of fatty alcohol polyoxyethylene ether sodium sulfate, 4-12 wt% of coconut oil fatty acid monoethanolamide, and 3-25 wt% of an auxiliary agent. The preparation method therefor comprises mixing and stirring dodecyl benzene sulfonic acid, fatty alcohol polyoxyethylene ether sodium sulfate, coconut oil fatty acid monoethanolamide, and the auxiliary agent to form the cleaning liquid.\nC: The present invention discloses a preparation method of a sustainable hydrophilic modified polyvinylidene fluoride hollow membrane, comprising the following steps: (1) a core solution and a polyvinylidene fluoride casting solution are co-extruded from an annular spinneret of a hollow fiber spinning apparatus to obtain nascent membrane filaments, wherein the core solution is formed by reacting ammonium persulfate, polyvinylpyrrolidone and RO water; (2) at 40-50ºC, the nascent membrane filaments obtained in step (1) are spun by means of a dry-wet spinning process to form a hollow fiber membrane, wherein a coagulating bath is water or a mixture of water and a solvent, and by controlling the flow rate of the core solution, and the temperature and composition of the coagulating bath a hollow fiber membrane with different internal and external structures can be obtained; and (3) a membrane filament moisturizing process: the hollow fiber membrane obtained in step (2) is immersed in pure water at 15-40ºC for at least 48 hours, and is then placed in a mixed solution of water and glycerin and immersed for at least 12 hours, followed by drying to obtain the sustainable hydrophilic modified polyvinylidene fluoride hollow membrane.\nD: Disclosed is a colistin sulphate premix, which is composed of the following components in percent content by weight: 3%-8% of colistin sulphate, 2%-6% of a binder and the balance being a carrier, wherein the binder is composed of polyvinylpyrrolidone and carrageenan, and the mass ratio of the polyvinylpyrrolidone to the carrageenan is (1 - 3) : 1.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA frequency conversion ultrasonic wine aging device for bottled wine comprises a base (1), and an opening portion formed by extending upwards along a peripheral edge of the base (2); a container is arranged in the opening portion and used for containing a sound conducting medium solution; when the frequency conversion ultrasonic wine aging device is used, a wine bottle (3) is placed in the container and immersed in the sound conducting medium solution; an ultrasonic transducer (21) and a control circuit board (23) are mounted in the base (2); the control circuit board (23) is provided thereon with an ultrasonic generating unit and an ultrasonic frequency modulation unit; the ultrasonic generating unit is used for converting a commercial power into an ultrasonic frequency alternating current signal; the ultrasonic frequency modulation unit serves to modulate the frequency of the ultrasonic frequency alternating current signal so that the frequency of the ultrasonic frequency alternating current signal varies cyclically within a set range; the frequency-modulated ultrasonic frequency alternating current signal is input into the ultrasonic transducer (21) to cause the ultrasonic transducer (21) to generate an ultrasonic wave; and the ultrasonic transducer (21) is used to transmit the ultrasonic wave into the container. The frequency conversion ultrasonic wine aging device can generate the best ultrasonic frequencies required for ripening and aging of various types of wines, and also realizes acceleration of a wine ripening process to achieve a quick aging effect.\nA: An ultrasonic alcoholic beverage aging device, comprising an ultrasound generating unit, a containing unit, an alcoholic beverage holding unit, and an alcoholic beverage input and output operating unit. The ultrasound generating unit is used to generate a mechanical vibration. The mechanical vibration is transmitted to the alcoholic beverage holding unit via water in the containing unit so as to perform aging processing on an alcoholic beverage in the alcoholic beverage holding unit. The alcoholic beverage input and output operating unit is used to input the alcoholic beverage into the alcoholic beverage holding unit and output the liquid from the alcoholic beverage holding unit. The aging device is further provided with a control panel, and the control panel is provided with a alcoholic beverage input and output switch. When the alcoholic beverage input and output switch is in different positions, the alcoholic beverage input and output operating unit is controlled to perform an alcoholic beverage input or output operation.\nB: Disclosed is a medical drug delivery device, comprising an ultrasonic generator (4) and a cavity body (1), wherein the cavity body (1) can be pressed closely against human skin and has a liquid permeation structure set in the side, and an ultrasonic transducer (2) is arranged inside the cavity body (1) with the ultrasonic transducer (2) being electrically connected to the ultrasonic generator (4) through a wire (3), and the cavity body (1) is in communication with a drug delivery tube (7) with a bleeder pipe being set in the cavity body (1), and the drug delivery tube (7) is connected to a liquid medicine storage pump (6). The ultrasonic transducer (2) is an ultrasonic piezoelectric ceramic piece, and the drug delivery device also comprises a controller (5) connected to a computer, and the liquid medicine storage pump (6) and ultrasonic generator (4) are controlled by the controller (5). A pressure testing probe (11), which is connected to the controller (5), is arranged in the liquid medicine after being outputted by the liquid medicine storage pump (6). The medical drug delivery device does not need to break the skin using a needle to perform drug delivery, causes no trauma, can reduce patients' pain and chances of infection, and increases the drug sensitivity of human cells, thereby improving the therapeutic effects.\nC: An ultrasonic soup cooker includes a body (10), an ultrasonic generator and an ultrasonic transducer (20) which is mounted in the body (10). The ultrasonic generator is coupled electrically to the ultrasonic transducer (20). The ultrasonic transducer (20) can change electric energy into ultrasonic vibration, and cause the excitation of water, so as to make the nutrition in food dissolved in the soup sufficiently.\nD: An intelligent ultrasonic material level sensor, comprising an upper cover (11), a housing (1), a probe (31), and a circuit portion (2), wherein a fixed bracket (115) is provided in the housing (1), and the fixed bracket (115) is used to install the circuit portion (2); the circuit portion (2) is provided in the housing (1), and the circuit portion (2) comprises a power conversion module, an ultrasonic transducer unit (22), an ultrasonic driving circuit, an instrumentation amplifying circuit, a filtering and amplifying circuit, a gain adjusting module, a central processing unit and a temperature filtering circuit; the ultrasonic transducer unit (22) comprises a signal receiving and transmitting unit and a temperature detecting unit, and the ultrasonic transducer unit (22) is provided at an inner part of the probe (31). The present sensor is highly reliable and has precise detection accuracy, will not be affected by temperature, and has strong anti-interference capabilities; and sound speed learning may be achieved by means of a key learning mode.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA liquor path structure having an air pressure flushing function, and an ultrasonic liquor aging system. A sub liquor control valve (J113) is provided at the outlet of a liquor inlet and outlet pipe; a high-pressure air input port is provided on an air discharge pipe; a manual air valve is provided on the high-pressure air input port; a medical air pump is movably connected to the high-pressure air input port; an air discharge valve (J102) and the sub liquor control valve (J113) are controlled to be closed, and high-pressure air within a preset pressure range is injected into a stainless steel aging barrel (J111) by means of the medical air pump; the sub liquor control valve (J113) is controlled to be opened, and residual liquor in the stainless steel aging barrel (J111) is instantaneously vaporized and is discharged by means of the liquor inlet and outlet pipe. By using the principle that a liquid is suddenly released and atomized after high pressure is applied, and then is discharged along with high-pressure gas, the residual liquor in a liquor path is quickly cleaned when an aged liquor needs to be replaced, and the residual liquor hung on a wall or other corners can be cleaned.\nA: A sensor cleaning device (20) and method, a sensor recognition system and an autonomous vehicle (1). The sensor cleaning device (20) comprises a main control module (21), a high-pressure gas nozzle (22), and a high-pressure liquid nozzle (23). The main control module (21) is connected to the high-pressure gas nozzle (22) and the high-pressure liquid nozzle (23) and configured to control the high-pressure gas nozzle (22) and the high-pressure liquid nozzle (23). The high-pressure gas nozzle (22) and the high-pressure liquid nozzle (23) are fixedly provided on a sensor (10), and the high-pressure gas nozzle (22) is connected to a gas pump and configured to spray high-pressure gas to clean the sensor (10). The high-pressure liquid nozzle (23) is connected to a water storage tank and a liquid storage tank storing cleaning liquid, and configured to spray clean water or the cleaning liquid to clean the sensor (10). When the sensor (10) needs to be cleaned, the main control module (21) controls the high-pressure liquid nozzle (23) to spray out the cleaning liquid to clean stains, clean water is sprayed out for flushing, and high-pressure gas is sprayed out by means of the high-pressure gas nozzle (22), such that cleaning of the sensor (10) is completed, and the recognition accuracy of the sensor (10) is improved.\nB: Disclosed are a system and method for storing a high pressure gas on the seabed, using a gas compressor (3) to compress and provide an uninterrupted supply of gas into a sealed gas tank (1) on the seabed via a gas inlet pipe (6). When the high pressure gas in the sealed gas tank (1) needs to be used, the sealed gas tank (1) releases the high pressure gas to an external energy conversion apparatus via a gas discharge pipe (7). An internal and external sensor transfer a pressure value to a controller for pressure comparison and for control of a lifting apparatus. When the high pressure gas is poured into the sealed gas tank (1), the lifting apparatus drives the sealed gas tank (1) to sink, and when the sealed gas tank (1) releases the high pressure gas to the outside, the lifting apparatus drives the sealed gas tank (1) to float upwards. When the sealed gas tank (1) is storing or discharging the high pressure gas, the internal and external pressure differential borne by the housing thereof is within the pressure range of the bearing capacity of the housing of the sealed gas tank. That is to say, the sealed gas tank (1) can admit more high pressure gas and does not need a relatively thick tank wall for support, making the costs of the sealed gas tank lower.\nC: A pneumatic multi-stage pressurization device, comprising a drive cylinder (1), a drive piston (2) disposed in the drive cylinder (1), a multi-stage pressurization device (3) connected to the drive piston (2), and a filter (4) connected at the back end of the multi-stage pressurization device (3); the drive cylinder (1) comprises a drive cylinder sleeve (11), and a pressurized cylinder cap (12) and a cylinder seat (13) disposed at the two ends of the cylinder sleeve (11); the pressurized cylinder cap (12) and the cylinder seat (13) are connected to a reversing valve (5); disposed on the reversing valve (5) are an exhaust opening, a reversing pipe air inlet, a forward pipe air outlet, a reverse pipe air outlet, a high pressure pipe connector, and a gas input connector. The drive piston (2) moves to the pressurized cylinder cap (12) position, triggering a pressure reducing valve (16); the pressure reducing valve (16) discharges the pressure in a reversing cylinder; the reversing valve core moves; gas in a reverse pipe switches to an exhaust pipe to be released; and a forward pipe opens. The described actions realize reciprocating operation. The drive piston (2) drives a second stage pipe and a high pressure rod, thereby driving reciprocating operation of a first stage piston (32), a second stage piston (34) and a third stage piston (36).\nD: An ultrasonic alcoholic beverage aging device, comprising an ultrasound generating unit, a containing unit, an alcoholic beverage holding unit, and an alcoholic beverage input and output operating unit. The ultrasound generating unit is used to generate a mechanical vibration. The mechanical vibration is transmitted to the alcoholic beverage holding unit via water in the containing unit so as to perform aging processing on an alcoholic beverage in the alcoholic beverage holding unit. The alcoholic beverage input and output operating unit is used to input the alcoholic beverage into the alcoholic beverage holding unit and output the liquid from the alcoholic beverage holding unit. The aging device is further provided with a control panel, and the control panel is provided with a alcoholic beverage input and output switch. When the alcoholic beverage input and output switch is in different positions, the alcoholic beverage input and output operating unit is controlled to perform an alcoholic beverage input or output operation.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA molecular diagnostic platform, comprising: a rack; a cartridge; and a sample processing module, a sample transfer module, a thermal cycling module, and an optical module which are provided on the rack. The cartridge is configured to be used for packaging a sample to be tested and various reagents, and an operator places the cartridge on a cartridge moving assembly of the rack so as to convey the cartridge to the sample processing module; the sample processing module is configured to be used for operating the cartridge, so that the reagents in the cartridge sequentially react with the sample, and a sample solution obtained after the reaction is canned in a capillary tube on a test tube rack; and the sample transfer module is configured to be used for transferring the test tube rack to the thermal cycling module, so that the sample is subjected to a PCR reaction, and fluorescence signal acquisition is performed on the sample by means of the optical module to obtain a fluorescence imaging picture.\nA: A fully automatic sperm cell detector, comprising a detection platform (10), a control system (60) provided on the detection platform (10), and a sample processing system (20), liquid flow system (30), laser optical system (40) and photoelectric detection system (50) that are all connected to the control system (60). The sample processing system (20) is used to count sperm cells in a semen sample to be processed, and perform a dyeing reaction treatment on the sperm cells in the semen sample to obtain a dyed sperm sample. The liquid flow system (30) is connected to the sample processing system (20), and is used to carry out mixed reaction, flowing, detection and recovery processing of the dyed sperm sample outputted from the sample processing system (20) and sheath fluid. The control system (60) is used to control the sample processing system (20), the liquid flow system (30), the laser optical system (40) and the photoelectric detection system (50), and then conduct fully automatic detection and analysis on the semen sample and generate an analysis result. The present detector implements the fully automatic high-throughput rapid detection and analysis of semen samples. A user need only place the semen samples in a sample pool to carry out a fully automatic operation and automatically output the detection and analysis results.\nB: The present invention provides a fully automatic photoexcited chemiluminescence detector for improving the accuracy of chemical analysis, comprising a sample loading module, a sampling arm module, an incubation disk module, a reagent disk module, and a reagent arm module. The sample in the sample loading module is transferred to a reaction cuvette on the incubation disk module by means of the sampling arm module; after the reaction cuvette is rotated to a specified position along with the incubation disk, the reagent arm module transfers the reagent in the reagent disk module to the reaction cuvette; and the sample in the reaction cuvette is mixed with the reagent to perform incubation in the incubation disk, and then is transferred to a detection module to perform photoexcitation; and the luminescence signal generated after the excitation is detected. The whole operation of the fully automatic photoexcited chemiluminescence detector of the present invention is automatic, so that the problems, such as individual differences, manual errors, and non-standard actions, in the manual operation can be effectively avoided, and the accuracy of the chemiluminescence immunoassay can be improved.\nC: Disclosed in the present invention are a molecular detection system and a microfluidic kit applicable to the molecular detection system. The molecular detection system comprises: a substrate provided with a fixing device, a driving device, a detection device, and a temperature control device, wherein the fixing device is suitable for fixing a container containing a sample to be detected; the driving device is suitable for driving the container to preprocess said sample; the detection device is suitable for detecting said preprocessed sample; and the temperature control device is suitable for regulating the temperature of said sample. The microfluidic kit comprises: a kit body in which a reagent area, a sample area, and a reaction area are provided; and a microfluidic kit chip comprising a microfluidic pipeline, wherein a puncture member facing towards a liquid outlet is provided in the microfluidic pipeline, and the microfluidic kit chip is respectively connected to the reagent area, the sample area, and the reaction area by means of the microfluidic pipeline.\nD: A blood analyzer (1) and a control method therefor, the blood analyzer (1) comprising a sample transport module (11) for transporting a sample to be tested, a dispensing module (13) for sucking in and discharging samples or reagents, a sample incubation module (14) for incubating samples, a reagent storage module (15) for storing the reagents, a transfer module (16) for transferring an assay cup, and a sample detection module (17) for detecting the samples. The dispensing module (13) is capable of transferring the samples from a sample delivery module (11) to the assay cup of the sample incubation module (14), and the dispensing module (13) may also transfer the reagents from a first reagent storage mechanism (151) to the assay cup of the sample incubation module (14) or the assay cup of the sample detection module (17); and the transfer module (16) is capable of transferring the assay cup in the sample incubation module (14) to the sample detection module (17). The described blood analyzer (1) may easily facilitate modular operation and is convenient for adding a module to achieve a corresponding function, thus being easy to expand.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a method for extracting plasmid DNA in bacteria, realizing lysis and neutralization during plasmid production in two mixing assemblies connected in series, and comprising the following steps: (1) mixing, (2) lysing, and (3) neutralizing. Step (1) is completed in a first mixing assembly; step (2) is completed in a lysis helical tube; step (3) is completed in a second mixing assembly; and the first mixing assembly, the lysis helical tube and the second mixing assembly are sequentially connected in series. A device used in the plasmid preparation process is simple, is convenient to operate, is low in costs, can remove a large amount of impurities during cell lysis without professional customized device and expensive device, has safe components, realizes automatic continuous lysis, and facilitates industrial production.\nA: The present invention relates to an optimal production method for a graphene powder material having a three-dimensional structure, comprising the following steps: (1) sensitizing a polymer, wherein sensitizing treatment comprises sequentially performing alkalization treatment, acidification treatment, metal ion exchange and pore-forming treatment on the source material; (2) drying the sensitized raw material obtained in step (1); (3) performing high-temperature pyrolysis treatment on the dried raw material obtained in step (2); (4) in a solvent, performing disintegration treatment on the sample following the high-temperature pyrolysis treatment in step (3); (5) performing metal recovery treatment on the sample following disintegration in step (4). The whole process for preparing the graphene powder material having a three-dimensional structure according to the method of the present invention does not require grinding and pulverization, thus optimizing cumbersome preparation processing when preparing graphene according to a conventional catalytic cracking method, simplifying the production procedure and reducing production costs.\nB: The present invention relates to a crude oil cracking method and system. The method comprises: delivering crude oil to a first tube group of a convection section of a cracking furnace for preheating and then performing vaporization to obtain a first gas phase and a first liquid phase; performing high-pressure extraction on the first liquid phase to obtain a non-asphalt oil and asphalt; and mixing the first gas phase and the non-asphalt oil with water vapor separately, or mixing the first gas phase with the non-asphalt oil first and then mixing the mixture with water vapor, then delivering the same to a second tube group of the convection section of the cracking furnace for heating, then delivering same to a radiation section of the cracking furnace for cracking to obtain a cracking product, and separating the cracking product to obtain a low-carbon olefin. In the present invention, after crude oil is preheated and vaporized in a cracking furnace, an obtained gas phase enters the cracking furnace, and an obtained liquid phase passes through a supercritical extraction unit to obtain a separated extract oil and the extract oil enters the cracking furnace; the method can effectively improve the crude oil cracking efficiency, improve the yield of a low-carbon olefin in the product, extend the operating cycle, and reduce coking of a gasified crude oil mixture in a cracking process.\nC: Provided is a mixing module (100), comprising a housing (1), multiple partitions (2), and a mixing device (3). The multiple partitions (2) comprise a first partition (21) and a second partition (22) spaced apart from each other. The first partition (21) and the second partition (22) separate the housing (1) into a first chamber (41), a second chamber (42), and a third chamber (43). The mixing device (3) is at least partially supported by the first partition (21), and comprises a first mixing pipe (31) and a second mixing pipe (32) parallel to the first mixing pipe (31). The first mixing pipe (31) comprises multiple first swirl plates (312). The second mixing pipe (32) comprises multiple second swirl plates (322). Both the first swirl plates (312) and the second swirl plates (322) are located in the first chamber (41). The mixing module (100) further comprises a first air deflector (35) and a second air deflector (36) that are secured on the second partition (22) to force air to flow in reverse. The mixing module (100) increases the distance and duration of urea evaporation and improves uniformity of air flow mixing.\nD: A chaotropic agent and a method for extracting genomic DNA by using same. The chaotropic agent contains sodium bromate, and the compound can quickly and effectively separate histone in a nucleosomal structure from genomic DNA. The method for extracting genomic DNA by using the chaotropic agent comprises the following steps: adding a cell lysis solution to a sample to rupture cells; then mixing the sample with a chaotropic agent uniformly to obtain a material in which histone and genomic DNA are separated; adding protein extracting liquid, followed by uniform mixing and centrifugation, to obtain supernatant after protein is extracted; and mixing the supernatant with a DNA precipitant, and centrifuging the mixture to obtain a DNA precipitate. Compared with a method using sodium perchlorate, this method is different in the type of the chaotropic agent, and has lower valence and more appropriate yield and purity of the genomic DNA. Compared with a conventional proteinase K method, this method requires no long-time digestion, saves a great deal of time, overcomes the defect of susceptibility to change in protease K activity and the disadvantage of inadequate digestion, and features good repeatability and high stability.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention provides a large-circulating cell retention apparatus, a fluid circulation pump, and a down-detection shaker. The present invention belongs to the technical field of cell retention apparatuses. The down-detection shaker comprises a shaker body; a shaking disc at the top of the shaker body is mounted on an upper bearing plate; four corners of the upper bearing plate are respectively mounted at the upper ends of four down-detection columns; a column fixing frame is mounted in the middles of the four down-detection columns; the lower ends of the four down-detection columns are respectively mounted on a shaking disc bottom plate; sliding sleeves and sleeve locking screws are mounted on the shaking disc bottom plate; the sleeve locking screw is mounted on the outer side of the center line of the sliding sleeve; the sliding sleeve is slidably provided with an openable heat preservation tank. The fluid circulation pump comprises a double-layer hard plastic shaking tank, a stirring tank and the down-detection shaker. The large-circulating cell retention apparatus comprises a supernatant extraction and backwashing system and the fluid circulation pump.\nA: Disclosed is a metal component grinding device with a positioning function. The grinding device comprises a housing (6), a moving base (10) and support legs (7). A threaded sleeve (1101) is rotatably mounted inside the housing by means of a threaded rod (11). The top of the housing is provided with an adjustment groove (601). The moving base (10), which extends out of the adjustment groove, is mounted at the top of the threaded sleeve by means of fixing rods (1103). A moving platform (9) is mounted on the moving base in a sliding manner by means of a slide groove. Two support posts (1) are fixedly mounted at the top of the moving platform. Chucks (104) are respectively mounted on outer sides of the support posts in a penetrating manner by means of threaded adjustment knobs (103) and adjustment discs (105). An upright post (5) is fixedly mounted on one side of the top of the housing. An electric motor (3) is fixedly mounted at the top of the upright post by means of a pedestal (4). The device moves left and right by means of mounting a moving assembly inside the housing and by means of using the threaded rod with the threaded sleeve and the moving base, and by means of mounting the chucks, which are adjustable, between the support posts, a component can overturn using the adjustment discs while the component is fixed.\nB: A hydraulic press machine for a fiber-reinforced plastic product. Columns (2) are mounted at four corners of a worktable (4). The tops of front and rear rows of columns are respectively connected to each other by means of upper cross beams (1) extending along left and right directions. Pull rods (10) are respectively inserted into the front part and the rear part of each column. The upper ends of the pull rods respectively penetrate through the tops of the upper cross beams and are fixed onto the upper cross beams by means of upper nuts. The lower ends of the pull rods respectively penetrate through the bottom of the worktable and are fixed onto the worktable by means of lower nuts. Intermediate cylinders (5) are respectively mounted in the intermediate parts of the upper cross beams. Side cylinders (6) are symmetrically mounted on left and right sides of the intermediate cylinders, respectively. Lower ends of plungers of the intermediate cylinders and the side cylinders are all fixedly connected to the top of a sliding block (3). Return cylinders (7) and mold opening cylinders (8) are respectively provided between columns on the same side. The return cylinders and the mold opening cylinders on the left and right sides are diagonally distributed. The intermediate cylinders and the side cylinders are respectively connected to an oil tank by means of a prefill valve (D0). The hydraulic press machine for a fiber-reinforced plastic product has a large worktable area, a long stroke of the sliding block, and a large pressing force, and avoids the stress concentration problem caused by the large worktable surface.\nC: The present invention relates to a surgical robot, comprising a base, a column, mechanical arms, and a push handle. The push handle is fixedly mounted on the rear part of the upper end of the base; the column is fixedly mounted in the middle of the upper end of the base; the mechanical arms capable of moving up and down are disposed on side walls of the column; mechanical arm connecting devices are provided between the column and the mechanical arms. According to the present invention, the mechanical arm connecting devices enable the mechanical arms to obtain larger movement ranges and spaces towards the front, the left side, and the right side, and also facilitate positioning of the mechanical arms before surgery, to obtain a larger surgical space; mechanical arms may be mounted on the four sides of the column, one mechanical arm can be independently used, and two or three or four mechanical arms can be simultaneously used; by means of the mechanical arms at different positions and in various combinations, surgical requirements with different mounting requirements are met.\nD: Disclosed is a fixable cell culture assembly, comprising a cell culture bag and a biological shaker, wherein the biological shaker comprises a tray, and the cell culture bag comprises a closed bag body and a fixing assembly, which comprises a bottom sheet, a chuck and a screwing cap. The bottom sheet is fixedly connected to the closed bag body; the chuck comprises a threaded post and an elastic clamping jaw; the screwing cap is of an up-down through structure and comprises a threaded pipe section and a tapered pipe section; a groove is provided in an upper end face of the tray; and a clamping rod, which cooperates with the chuck, is vertically arranged at the bottom of the groove. The present application has the beneficial effects of the cell culture bag and the tray being quickly fixed and separated from each other, the cell culture bag not sliding when the tray swings, the cell culture efficiency being higher, the loss being less, and the improvements to the tray being minor, such that the cell culture assembly is suitable for most biological shakers on the market, the replacement cost of the shaker is reduced, and the promotion of same is easy.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present invention is a multi-efficiency accurate electrical stimulation device for an egg cell. The multi-efficiency accurate electrical stimulation device comprises: a base; an electrical stimulation mechanism comprising two first electrical stimulation assemblies and two second electrical stimulation assemblies, wherein each first electrical stimulation assembly comprises a liquid metal capillary micro-needle electrode and a first needle holding instrument connected to the liquid metal capillary micro-needle electrode, and each second electrical stimulation assembly comprises a metal parallel plate micro-electrode and a second needle holding instrument connected to the metal parallel plate micro-electrode; a cell pose adjusting chip mounted on the base and configured for adjusting the pose of a cell; and a rotating mechanism mounted on the base, connected to the cell pose adjusting chip and configured for driving the cell pose adjusting chip to rotate. Further disclosed is a multi-efficiency accurate electrical stimulation method for an egg cell. According to the present invention, accurate electrical stimulation can be carried out on specific parts of an egg cell at different stages during an entire cloning process, multiple effects of targeted electrical stimulation are achieved at all stages of a somatic cell cloning process, and the success rate of the entire somatic cell cloning process is increased.\nA: A functional electrical stimulation system is disclosed. The functional electrical stimulation system includes: an initial power supply; a boost module, connected with the initial power supply for boosting output voltage of the initial power supply to a first preset voltage; an energy storage module, connected with the boost module for storing the electrical energy of the voltage boosted to the first preset voltage; a central control unit, used to generate packets of the electrical stimulation parameters; electrical stimulation output channels, connected with the energy storage module for receiving electrical stimulation parameters packets and parsing out electrical stimulation parameters from packets of the electrical stimulation parameters; the electrical energy stored in the energy storage module is converted to electrical stimulation pulses corresponding to the electrical stimulation parameters; and the electrical stimulation pulses are acted on patients' disease parts. The flexibility and freedom of the electrical stimulation pulses are enhanced by the electrical stimulation system of the application, and it will be helpful for users to choose a personalized type of the electrical stimulation pulses according to their actual situation.\nB: A functional electrical stimulation device for relieving preoperative and prenatal anxiety. The device comprises a headset, an electrical stimulation patch (6), an LED display (7), a circuit board (5), a rechargeable battery (2) and a wireless terminal (15), wherein two earphone bodies (1) are symmetrically arranged on the headset; the circuit board (5) and the rechargeable battery (2) are respectively mounted on the two earphone bodies (1), and a music control button (3) and an electrical stimulation mode and time control button (4) are further respectively installed on the two earphone bodies (1); there are two electrical stimulation patches (6), which are installed in a middle portion of the headset, and there are two LED display screens (7), which are respectively installed on the two electrical stimulation patches (6); and the circuit board (5) is provided with an audio decoding chip (8), a button control module (9), a power source switch (10), an electrical stimulation generation module (11), a wireless communication module (12), and a charging socket (13), and the wireless terminal (15) is independently arranged and is in wireless communication connection with the circuit board (5). By means of the cooperation of the functional electrical stimulation device, the patient's anxiety symptoms can be relieved physiologically and psychologically.\nC: The present invention discloses a smart pelvic floor muscle rehabilitation training device. Electromyographic signals of the pelvic floor muscle are acquired by EMG electrodes and transmitted through signal wires to an electromyographic amplifying circuit, the electromyographic amplifying circuit being connected with a master control MCU through an AD sampling circuit. The master control MCU communicates with a smart mobile terminal for displaying sampling results and sending stimulation instructions through a wireless communication module, receives instructions from the smart mobile terminal through the wireless communication module, and controls an electrical stimulation circuit to generate stimulating pulse currents. The electrical stimulation circuit is connected with STIM electrodes through signal wires to form neuromuscular electrical stimulation to pelvic floor muscles. The present invention also discloses a pelvic floor muscle rehabilitation training method using the device. The device of the present invention has small volume and low cost, and utilizes the data processing function and display function of the smart mobile terminal to carry out pelvic floor electromyographic biofeedback training and neuromuscular electrical stimulation so as to facilitate the patient to carry out pelvic floor muscle rehabilitation training at home.\nD: Provided is a cell culture device with a micro-current stimulation function. The cell culture device comprises a box body, an upper guide rail, an upper magnetic block, an upper sliding block, a lower guide rail, a lower magnetic block, a lower sliding block and an object stage. The box body is a medical-grade polymer box body or a stainless steel box body; the box body comprises an incubator and a control box; the incubator and the control box are arranged side by side; the upper guide rail, the upper magnetic block, the upper sliding block, the lower guide rail, the lower magnetic block, the lower sliding block and the object stage are all arranged in the incubator; the object stage is located at a middle position between the upper guide rail and the lower guide rail; the object stage is horizontally arranged; the upper sliding block is slidably arranged on the upper guide rail, and the upper magnetic block is arranged on a lower surface of the upper sliding block; the lower sliding block is slidably arranged on the lower guide rail, and the lower magnetic block is arranged on an upper surface of the lower sliding block; and the upper magnetic block and the lower magnetic block have opposite magnetic poles. By performing electrical stimulation during the processes for culturing various cells, such as tendons, ligaments, nerves, blood vessels, skin, muscles and digestive tract cells, the proliferation, differentiation and growth of nerve cells can be especially promoted, and the beneficial effect of promoting nerve repair and regeneration is achieved.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a cleaning agent for removing grease stains on a metal surface, consisting of the following components in parts by weight: 20-30 parts of a saponin extract; 10-20 parts of sodium metasilicate; 5-20 parts of sodium phosphate; 20-35 parts of oleic acid; 20-40 parts of triethanolamine; 5-15 parts of polyoxyethylene fatty acid; 5-10 parts of a sucrose fatty acid ester; 5-15 parts of sodium lauryl sulfate; 10-15 parts of acetone; 10-15 parts of methyl cellulose; 5-10 parts of a banana peel extract; 5-10 parts of polyetherimide; 5-10 parts of an active black phosphorene powder; 5-10 parts of carbon nanotubes; 0.5-2 parts of a defoaming agent; and 70-90 parts of deionized water.\nA: A cleaning and antirust agent, a metal workpiece, and an antirust treatment method therefor. The cleaning and antirust agent comprises the following components in parts by weights (based on 500 parts): 2 parts to 12 parts of anhydrous sodium metasilicate, 3 parts to 10 parts of sodium nitrite, 1 part to 5 parts of n-methyldiethanolamine, 0.1 part to 0.5 parts of alcohol ethoxylate, 2 parts to 10 parts of sodium tripolyphosphate, 3 parts to 15 parts of polyethylene glycol, 0.1 part to 0.5 parts of sodium dodecyl benzene sulfonate, 0.1 part to 0.5 parts of sulfonated castor oil, and the balance water. The cleaning and antirust agent can quickly remove oil from the workpiece and can form a dense polar protective film on a metal surface. The cleaning and antirust agent also has anti-mildew and anti-corrosion properties, can be widely used in anti-corrosion treatment of surfaces in the fine processing of a variety of molds, instruments and parts, can also be used for carrying out antirust treatment between processes before coating, and can maintain the original color of the metal.\nB: A dye formulation that will not easily fade consisting of the following components in parts by weight: 20-40 parts of a natural plant dye; 2-5 parts of sodium aliphatic alcohol sulfate; 5-10 parts of polyvinyl alcohol; 3-6 parts of sodium propionate; 5-8 parts of methyl acrylate; 1-3 parts of an acryl resin; 3-6 parts of glacial acetic acid; 2-5 parts of a fluorescer; 5-10 parts of an inorganic antibacterial agent; 0.5-2 parts of a negative ion anti-static agent; and 50-70 parts of deionized water. The dye formulation is filled with an acrylic resin, so that the dyed fabric will not easily fade, and the dye formulation contains a fluorescent agent, so that the fabric is fluorescent in a dark environment, and has a good visual effect.\nC: The present invention relates to a shaving cream usable for facial cleansing, the shaving cream usable for facial cleansing consisting of the following components in parts by weight: 10-20 parts of sodium lauroyl glutamate, 10-20 parts of sodium cocoyl glycinate, 4-15 parts of stearic acid, 4-15 parts of coconut oil fatty acid, 2-10 parts of glycerol, 10-20 parts of lauryl hydroxysultaine, 5-10 parts of hydroxyethyl cellulose, 2-10 parts of hyaluronic acid, 2-10 parts of propylene glycol, 10-25 parts of an aloe extract, 5-10 parts of menthol, 1-5 parts of a preservative, and 30-60 parts of deionized water. The shaving cream usable for facial cleaning of the present invention unifies a plurality of functions, namely, cleansing, moisturizing, inflammation elimination, and soothing, and has the advantages of being easy to use and being capable of reducing living costs.\nD: An underfloor heating pipeline cleaning liquid. The cleaning liquid is prepared by mixing the following components in parts by weight: 5-8 parts of hydroxypropyl guar gum, 1-5 parts of antibacterial cellulose, 2-3 parts of soybean lecithin, 7-10 parts of sodium lignosulfonate, 5-17 parts of glycolic acid, 5-10 parts of emulsifier, 3-6 parts of active agent, 8-18 parts of urotropine, 9-15 parts of sodium alkyl sulfate, 2-5 parts of sodium citrate, 10-20 parts of organic acid, 14-17 parts of polymaleic acid, 2-5 parts of lauryl polyoxyethylene ether, 8-15 parts of hydroxyethylidene diphosphonic acid, 1-2 parts of auxiliary agent, 1-5 parts of protease, and 50-100 parts of water. Also disclosed is a method for preparing the underfloor heating pipeline cleaning liquid.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn energy-saving and environment-friendly pickling device and a strip treatment system using the energy-saving and environment-friendly pickling device. The pickling device comprises a pickling tank (102); at least one end of the pickling tank (102) is a liquid isolation end (103), the liquid isolation end (103) is provided with a bearing dam (1031) and a liquid blocking dam (1032), the bearing dam (1031) extends upwards from the tank bottom, the liquid blocking dam (1032) extends downwards from the tank top, the bearing dam (1031) and the liquid blocking dam (1032) respectively extend to a position near a strip moving channel, and the strip can pass through a gap between the two dams; or, the gap between the bearing dam (1031) and the liquid blocking dam (1032) is smaller than the thickness of the strip, and the bearing dam (1031) and/or the liquid blocking dam (1032) are/is elastic dams. By providing the liquid isolation end composed of the bearing dam (1031) and the liquid blocking dam (1032), high-speed jet flow does not need to be used for performing liquid sealing on acid liquid at the two ends of the pickling tank (102) any more, a large amount of acid fog cannot be generated, and acid consumption and the cost of subsequent acid fog treatment are reduced.\nA: A suitcase. A first connecting strip (401) extending toward an top suitcase (102) is provided on the inner wall of a bottom suitcase (301) of a suitcase body (101), and the bottom of the top suitcase (102) is provided with a second connecting strip matched with the first connecting strip (401); the second connecting strip comprises a first connection portion (1031) and a second connection portion (1032), and an inversed L shape is enclosed by the first connection portion (1031) and the second connection portion (1032); one side of the first connecting strip (401) is abutted against the first connection portion (1031), and the top of the first connecting strip (401) is abutted against the first connection portion (1031); a filling space is enclosed by the first connection portion (1031), the first connecting strip (401), and the top of the bottom suitcase (301), a wrapping strip (103) is filled in the filling space, and the wrapping strip (103) is sewed by means of a silk thread. Therefore, a suitcase that sliding and placing are stable and use and transportation costs are low is provided.\nB: An electronic speed controller assembly comprises a first electronic speed controller (101) for driving a first motor (202), a second electronic speed controller (102) for driving a second motor (203), and a radiator assembly (103) provided between the first electronic speed controller (101) and the second electronic speed controller (102). The first motor (202) and the second motor (203) are used to respectively drive an upper propeller (2011) and a lower propeller (2012) to generate lifting forces. The first electronic speed controller (101) and the second electronic speed controller (102) are arranged in an inverted manner. The radiator assembly (103) comprises a radiator main body (1031), a heat-conducting metallic member (1032), and a heat dissipation pipe (1033). The heat-conducting metallic member (1032) and the heat dissipation pipe (1033) are mutually connected and provided at the radiator main body (1031). The first electronic speed controller (101) and the second electronic speed controller (102) are respectively in contact with the heat-conducting metallic member (1032) to transfer generated heat to the heat-conducting metallic member (1032), thereby solving problems in which prior art electronic speed controllers have<u/>poor heat dissipation performance, low maintainability and excessively large sizes. Also disclosed are a power system and an unmanned aerial vehicle.\nC: An impeller type paper money temporary storage mechanism comprises a transmission component (101), an impeller component (102), a temporary storage area (103) and a roller component (104). The transmission component (101) is used for conveying paper money to the impeller component (102), and comprises an upper belt transmission mechanism (1011) and a lower belt transmission mechanism (1012); the upper belt transmission mechanism (1011) and the lower belt transmission mechanism (1012) construct a transmission channel; the temporary storage area (103) comprises a baffle plate (1031) and a temporary storage channel (1032); the baffle plate (1031) is connected with the temporary storage channel (1032), is arranged between the temporary storage channel (1032) and the impeller component (102), and is used for intercepting paper money from a transfer channel in the temporary storage channel (1032). With upper and lower belt transmission channels additionally arranged, the matching relation between the conventional paper money channel and an impeller is improved, the collision between paper money and the impeller can be reduced, the probability of money sticking and money flying is further lowered, and the accuracy and the efficiency of paper money stacking are increased. A paper money processing device and an automatic teller machine including the impeller type paper money temporary storage mechanism are also disclosed.\nD: Provided is a strip-steel mixed-acid pickling system, comprising a multi-stage rinsing and scrubbing tank (3), a plurality of mixed-acid pickling tanks (1, 2), and a hot air dryer (17) used for drying the strip steel after cleaning; each of the mixed-acid pickling tanks (1, 2) and the plurality of rinsing and scrubbing tanks (3) in the multi-stage rinsing and scrubbing tank (3) are arranged in sequence along the direction of conveyance of the strip steel; the mixed-acid pickling tank (2) located at the end of each of the mixed-acid pickling tanks (1, 2) is docked with the rinsing and scrubbing tank (3) at the first position of the multi-stage rinsing and scrubbing tank (3); the hot air dryer (17) is arranged on the side of the rinsing and scrubbing tank (3) at the end of the multi-stage rinsing and scrubbing tank (3) away from the mixed-acid pickling tank (1, 2). The strip-steel mixed-acid pickling system uses a multi-stage rinsing and scrubbing tank (3) and a plurality of mixed-acid pickling tanks (1, 2) to treat strip steel, to obtain clean strip steel, which is then dried by means of a hot air dryer (17), such that the strip steel can be applied to the subsequent process more quickly, improving operating efficiency.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA preparation apparatus for preparing an aqueous solution including a chlorine dioxide gas. The aqueous solution comprises magnetized water and the chlorine dioxide gas. The preparation apparatus comprises an electrolyte device (1) used to produce the chlorine dioxide gas; a magnetizing device (3) used to magnetize water to form the magnetized water; and a mixing device (2) used to mix the chlorine dioxide gas and one of the water and the magnetized water. The preparation apparatus can prepare the aqueous solution including the chlorine dioxide gas and having favorable sterilization and storage durations.\nA: The present invention relates to a method for catalytically oxidizing hydrogen chloride to prepare chlorine gas, and specifically relates to the method: chlorine gas is prepared by means of single injection of hydrogen chloride and multi-stage injection of oxygen, and/or single injection of oxygen and multi-stage injection of hydrogen chloride, the product gas stream being returned without being separated, and optional means of insulation. The present invention does not cause the heat of reaction to be excessively concentrated, and therefore is a commercially viable method for Deacon catalytic oxidation of hydrogen chloride to recover chlorine gas.\nB: Provided is a method for preparing high-purity chlorine dioxide using a combination of methyl alcohol and hydrogen peroxide as a reducing agent. The method comprises: injecting concentrated sulfuric acid and sodium chlorate solution into a generator to form a reaction mother solution, making the reaction mother solution maintain an acidity of 5.8-6.2N, a sodium chlorate content of 234-266 g/L and a temperature of 69-73℃; then adding a reducing agent from the combination of methyl alcohol and hydrogen peroxide for reaction to generate chlorine dioxide gas and by-product neutral mirabilite; and cooling the chlorine dioxide gas generated by reaction and then absorbing same with chilled water of 4-10℃ to obtain a chlorine dioxide aqueous solution, and at the same time, filtering, washing and recycling the by-product neutral mirabilite. Compared with only using methyl alcohol as a reducing agent, the method can reduce the chlorine gas content in chlorine dioxide by 60-70%, and can reduce the sulfuric acid consumption by 14-20%; besides, the generated by-product is neutral mirabilite, needing no neutralization treatment for acidic mirabilite.\nC: An externally used solution containing chlorine dioxide for promoting hair growth is composed of chlorine dioxide or its precursor, pH regulator, medical solvent and plant extract according to certain weight ratio. The product may take the forms of a single solution containing chlorine dioxide or several solutions comprising chlorine dioxide precursor. The safety and efficient oxidation sterilization and tissue regeneration ability of chlorine dioxide are introduced into the solution system for promoting hair growth, and the steps of removing hair loss factors, stimulating the growth of hair follicles, anti-inflammatory and anti-dandruff are done synchronously. Complemented Medical solvent and plant extracts, change alopecia environment.\nD: A gas-liquid mixing device, comprising a housing (1), an air bubble generator (3) provided therein, and a magnet (2) provided between the air bubble generator (3) and the housing (1). The magnet (2) covering of the air bubble generator (3) magnetizes a water body, thus changing a molecular structure of the water body. Magnetization and mixing are simultaneously carried out, thus improving a gas dissolution rate.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present application relates to a medical device. The medical device comprises a matrix and a first coating coated on the matrix. The matrix contains a metal element X having a content of ≥ 5 wt%; the first coating is at least one of an elemental metal layer of the metal element X, an alloy layer of the metal element X, and a metal-ceramic layer of the metal element X; and the first coating does not contain nickel and cobalt. The medical device has good use safety, reliability, and biocompatibility, so that a product can meet a use requirement of large plastic deformation, and has good reliability during use. The medical device can particularly meet requirements of products with large plastic deformation during use, such as medical implant devices.\nA: The present application relates to a Prussian blue analogue having a core-shell structure, comprising a core and a cladding layer covering the core, wherein the chemical formula of the core is the following formula 1, Na x P[R(CN) 6 ] δ ·zH 2 O Formula 1, wherein P and R are each independently selected from at least one of transition metal elements, and 0<x≤2, 0<δ≤1 and 0≤z≤10, the chemical formula of the cladding layer is the following formula 2, A y L[M(CN) 6 ] α ·wH 2 O Formula 2, wherein A is an alkali metal element or an alkali-earth metal element other than sodium, L and M are each independently selected from at least one of transition metal elements, 0<y≤2, 0<α≤1 and 0≤w≤10. The Prussian blue analogue of the present application has a good storage stability, thereby greatly reducing the manufacturing cost of the subsequent cell level. The present application further relates to a method for preparing a Prussian blue analogue having a core-shell structure, a sodium-ion secondary battery comprising the Prussian blue analogue, a battery module, a battery pack, and an electrical device.\nB: Disclosed is a medical instrument coating, being coated on the surface of a nickel-titanium alloy component of a medical instrument. The medical instrument coating comprises an elementary copper phase, an amorphous titanium-containing substance and a transition layer comprising a copper-nickel intermetallic phase. Also mentioned is a preparation method for the medical instrument coating. A medical instrument comprising a copper-titanium coating has good blood compatibility, and simultaneously can inhibit the endothelialization of the medical instrument surface, improving the recovery rate of the medical instrument and prolonging the recovery time window; the copper-titanium coating belongs to the group of metal composite coatings, has a certain toughness and ductility, and avoids the large-amplitude deformation process of the medical instrument damaging the coating; and the mechanical property and the coating quality of the medical instrument comprising a fine nickel-titanium alloy component are guaranteed by means of the a method for preparing the coating.\nC: The examples of the present application provide a lithium metal strip, a lithium pre-replenishing electrode plate, a lithium pre-replenishing method, a secondary battery, a preparation method for the secondary battery and a device. The lithium metal strip provided in the present application comprises a lithium substrate and a metal element doped in the substrate. The metal element comprises at least two of magnesium, boron, aluminium, silicon, indium, zinc, silver, calcium, manganese and sodium. The strength σ, the width w and the thickness h of the lithium metal strip satisfy σ 2  - (w/105h) 2  > 0. In the present application, the strength of the lithium metal strip is adjusted by adding a metal element; at the same time, the adjusted strength of the lithium metal strip matches with the width and thickness thereof, thereby ensuring that during the process of rolling the lithium metal strip into a reasonable degree of thinness, the phenomenon of edge-cracking of the lithium strip is avoided, thus saving lithium metal resources and production costs, and also enabling the electrode plate to obtain a uniform lithium pre-replenishing effect.\nD: Disclosed are a highly plastic zirconium-based bulk amorphous alloy with no beryllium or nickel, and a method for preparing same. The alloy has the components in atom percent as follows: Zr: 38-50％, Hf: 2-15％, Cu: 20-30％, Fe: 5-10％, Al: 10-15％, Co: 0-5％, Ag: 0-5％, and Nb: 0-5％; and the alloy is prepared by arc melting/copper mold suction casting. The amorphous alloy contains no metal elements such as Be and Ni, thus improving the biocompatibility of the Zr-based alloy; the alloy has a high amorphous forming ability, which allows a Zr-based bulk amorphous alloy with a critical size of no less than 5mm to be prepared by a copper mold suction casting method; the alloy has a high hardness, the Vickers hardness thereof always being more than 540Hv; the alloy has a plastic deformation ability of more than 3%; and the alloy has a wide super-cooled liquid region range, the maximum being 92K. The alloy has a wide application prospect in the field of complex and precise medical devices and parts, artificial joints and bones and other biomedical materials.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe invention discloses a process for processing a polyester functional fiber which is obtained by blending a functional powder with a polyester chip, and making the polyester functional fiber by a conventional spinning process. The preparation process of the functional powder is: 10-30 parts of nano zinc oxide, 5-10 parts of titanium pigment, 3-4 parts of amino silicone oil, 5-10 parts of polyether modified silicone oil, 0.1-0.3 parts of silane coupling agent and 1-2 parts of surfactant are mixed uniformly and reacted for 3-5 hours at 50-60 DEG C. After cooling, filtering, washing and drying, the functional powder can be obtained. Keeping stirring in the course of the reaction, and the above parts are mass parts. The ratio of the functional powder and the polyester chip is: on the basis of the quality of polyester functional fiber, the functional powder accounts for 10-15%. The antibacterial function of the polyester fiber made by this process can last longer.\nA: Provided are an insulating coating and a processing technology therefor, which solve the problem of the short service life of existing coatings. In the present insulating coating and the processing technology therefor, the insulating coating comprises the following materials in parts by mass: 90-110 parts of a powdered solid organosilicon resin, 75-150 parts of a combined solvent, 8-12 parts of a thermoplastic elastomer, 3-10 parts of a fluoro-surfactant, 50-80 parts of a superfine mica powder, 2-9 parts of nano silicon dioxide, and 3-8 parts of a hydrocarbon-based silicone oil, wherein the combined solvent is used to dissolve the powdered solid organosilicon resin; and the technology comprises the following steps: A. preparing the combined solvent; B. adding the nano silicon dioxide; C. adding the powdered solid organosilicon resin; D. adding the thermoplastic elastomer; E. adding the fluoro-surfactant; F. adding the hydrocarbon-based silicone oil; and G. adding the superfine mica powder. The present insulating coating and the processing technology therefor have a long service life.\nB: Disclosed are an addition-type silicone rubber having high adhesive strength and a preparation method therefor. On the basis of parts by weight, the addition-type silicone rubber is prepared from raw materials comprising the following components: 100 parts of a terminal vinyl silicone oil, 20-40 parts of a fumed silica, 10-40 parts of a methoxy-modified vinyl silicone oil, 5-20 parts of an epoxy-modified hydrogen-containing silicone oil, 1-5 parts of a silane coupling agent, and 0.01-0.1 parts of an inhibitor. On the basis of the mass of platinum, the preparation raw materials of the addition-type silicone rubber further comprise 10-30 ppm of a platinum catalyst. The methoxy-modified vinyl silicone oil is prepared by a silicon-hydrogen addition reaction of a polyvinyl silicone oil and a trimethoxysilane, the epoxy-modified hydrogen-containing silicone oil is prepared by a silicon-hydrogen addition reaction of a pendant hydrogen-containing silicone oil and allyl glycidyl ether, and the silane coupling agent comprises N,N-dimethyl-3-aminopropyltrimethoxysilane. The addition-type silicone rubber has high adhesive strength to various substrates.\nC: Disclosed are a high-efficiency protective composite board and a preparation method therefor, an application and an application method therefor. Raw materials of the composite board comprise a fiber and a thermosetting powder coating; the weight ratio of the fiber to the thermosetting powder coating is 20-80 parts to 80-20 parts; the thermosetting powder coating is uniformly cross-linked and cured on the fiber; the thermosetting powder coating is an acrylic powder coating or a super weather-resistant polyester powder coating. In the present invention, in addition to the inherent advantages of the thermosetting powder coating, the composite board has excellent properties such as ultraviolet resistance, aging resistance, impact resistance, flexibility, fire resistance and the like; the composite board is stable in storage property, convenient to store and transport, and low in manufacturing costs; moreover, the composite board also realizes lightweight and flexibility and has attractive and light-transmitting decoration properties, and is suitable for serving as a photovoltaic packaging material, a building material, and a vehicle exterior decoration material.\nD: The present invention relates to an easily-dyed porous modified polyester fiber and preparation method therefor. The easily-dyed porous modified polyester fiber is prepared from a modified polyester melt by adopting a porous spinneret plate by means of an FDY process. The preparation method for modified polyester comprises: uniformly mixing terephthalic acid, glycol, dihydric alcohol having a silicon-containing main chain, 2,2,3,4,5,5-hexamethyl-3,4-hexanediol, and a metal oxide doped and modified Sb2O3 powder, and sequentially performing an esterification reaction and a condensation polymerization reaction. The dihydric alcohol having the silicon-containing main chain is dimethylsilyl diol, dimethyl diphenyl disiloxane diol, or tetramethyldisiloxane diol, and the structural formula of 2,2,3,4,5,5-hexamethyl-3,4-hexanediol is as shown in formula (I). The dye-uptake and K/S value of the prepared easily-dyed porous modified polyester fiber are high. The method in the present invention is simple in process, and the finally prepared modified polyester fiber is good in dyeing performance and good in quality.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA textile dust removal device for a textile fabric comprises a dust removal box (1); a feeding port (2) and a discharging port (3) are respectively provided on the sidewalls of the two ends of the dust removal box; a textile fabric (4) sequentially passes through the feeding port and the discharging port; a driving motor (6) is fixedly connected to an upper end of the dust removal box by means of a fixing plate (5); an output shaft of the driving motor penetrates into the dust removal box. By providing a dust raising mechanism, a first driving mechanism, a dust suction mechanism, a fixing mechanism, a negative pressure mechanism, a pushing mechanism, and a dust collection mechanism, dust on the textile fabric is raised by an ion fan (11), and then the raised dust is sucked away by means of negative pressure air generated by the negative pressure mechanism, so that the textile dust removal device is good in textile fabric dust removal effect and high in dust removal efficiency for the dust adhered to the textile fabric; meanwhile, the removed dust can be collected in a dust collection box (23) and cannot be randomly discharged into air, so that air pollution is avoided, and the textile dust removal device is environmentally friendly.\nA: A loom having a dust absorption function, comprising a worktable (21) for processing a textile fabric (5), a base (1), a mounting frame (2), a dust collection box (4), a scraper (6), a telescopic device (7), textile racks (9), first mounting plates (11), a sponge (13), a second mounting plate (14), a fan (16), an air inlet main pipe (17), a dust collection cover (18), a communicating pipe (19), and air inlet branch pipes (20). Both the worktable (21) and the textile racks (9) are connected to the base (1). The second mounting plate (14) is connected to the side end surface of the worktable (21). The second mounting plate (14) is provided with a fixing plate (15). Both ends of the fan (16) are respectively connected to the fixing plate (15) and the air inlet main pipe (17). A plurality of rubber blocks (10) are respectively provided on the end surfaces, close to each other, of the two textile racks (9). The end surfaces, distant from each other, of the two first mounting plates (11) are respectively connected to the plurality of rubber blocks (10). The end surfaces, close to each other, of the two first mounting plates (11) are respectively connected to the sponge (13). The telescopic device (7) is connected to a textile rack (9). The scraper (6) is disposed on the telescopic device (7). The dust collection box (4) is placed on the mounting frame (2). The mounting frame (2) is provided with a positioning device for fixing the dust collection box (4). By cleaning the introducing textile fabric (5) in advance, the processing quality and the cleaning effect of the textile fabric (5) are improved.\nB: An embroidery machine for spinning and weaving. The embroidery machine comprises a housing (1). A transverse plate (2) provided along the horizontal direction is fixedly connected to the inner wall of the housing (1); a sliding groove (3) is formed on the side wall of the transverse plate (2); a sliding block (5) is slidably connected to the interior of the sliding groove (3); a threaded rod (4) is provided on the side wall of the transverse plate (2) in a penetrating manner; one end, located in the sliding groove (3), of the threaded rod (4) is rotatably connected onto the inner wall of the sliding groove (3); the sliding block (5) is threadedly connected to the threaded rod (4); a driving motor is fixedly connected to the side wall of the housing (1); one end, located in the housing (1), of an output shaft of the driving motor is coaxially and fixedly connected to a first gear (7); a deflection rod (11) is rotatably connected to the side wall of the sliding block (5). The embroidery machine can be used in different cloths. Moreover, an arc-shaped block (21) works in conjunction to a connecting rod (22), so that a push rod (30) moves to and fro so as to drive a piston (28) to move to and fro, and the piston (28) moves to and fro to enable a dust suction nozzle (19) to be in negative pressure so as to suck dust generated in an embroidery process, thereby reducing dust pollution in the embroidery process.\nC: The present invention specifically relates to the technical field of waste gas treatment. Disclosed is a waste gas separation and dust removal apparatus, comprising a rack. A dust removal cylinder is provided at the upper portion of the inner side of the rack; a filtering cylinder is detachably connected to the middle portion of the bottom end of the dust removal cylinder; a dust removal mechanism is provided in the dust removal cylinder; the dust removal mechanism comprises a guide column; the upper end of the guide column and the middle portion of the upper end of the rack are fixedly mounted; a plurality of grooves are formed in the outer side of the guide column; and each groove comprises a lower portion. By arranging the dust removal cylinder, the filtering cylinder, the dust removal mechanism, an inner column, a dust scraping mechanism, a motor, a spur gear, an exhaust fan, a gas inlet pipe, a water tank, and a circulating pump, the present invention introduces industrial waste gas into the dust removal cylinder to form a large amount of bubbles, and then crushes the bubbles and mixes the bubbles with water, so that the industrial waste gas is fully mixed with the water, and thus achieving the goal of dust removal, and the removal is thorough; moreover, scraping dust on the inner wall of the filtering cylinder by means of scraping blades ensures the filtering speed and the filtering effect.\nD: A safety protective textile material flushing device for textile, comprising a flushing box (1); a driving motor (2) is fixedly mounted on a side wall of the flushing box (1) by means of a mounting frame (3); an output shaft of the driving motor (2) is inserted into the interior of the flushing box (1); a first material receiving roller (4) and a second material receiving roller (24) are symmetrically connected between the opposite inner walls of the flushing box (1) in a rotatable manner; a textile material to be flushed is wound between the first material receiving roller (4) and the second material receiving roller (24); and a first driving mechanism for driving the second material receiving roller (24) to rotate is mounted on the second material receiving roller (24). By providing the first driving mechanism, a brushing mechanism, a spraying mechanism, a water pumping mechanism, a second driving mechanism, and a third driving mechanism, both the process of flushing and the process of drying and storage can be performed on textile fabrics in a small space, without requiring much labor and production cost, nor a large production space, avoiding secondary pollution of textile materials caused by air-drying of textile materials.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA warping device of a double-layer type, comprising a rack (1) which is horizontally provided at the middle portion of the rack with a partition plate (11), a passage (12) being provided at one side of the partition plate (11), the partition plate (11) separating the rack (1) into an upper layer and a lower layer, the upper layer being provided with a yarn unwinding component (2), a first rotary roller (24) and a yarn collecting beam (3), a tensioning component (4), which is provided between the passages (12), being provided at one side of the yarn collecting beam (3); the lower layer being provided with a first yarn separating frame (13), a second yarn separating frame (14), a yarn guiding component (5), a third yarn separating frame (15) and a warping component (6). The yarn unwinding component can move into or move out of the rack under the effect of a chute, facilitating a worker to change a yarn package to be processed, improving work efficiency.\nA: Disclosed is a dust removal device for yarn dyeing and finishing, the device comprising a frame. A dust removal device is arranged inside the frame; a yarn inlet is arranged on one side of the frame, and a yarn outlet is arranged on the other side of the frame; a first yarn guide device is arranged on the side in the frame close to the yarn inlet, a first yarn guide roller is sleeved on the outer side of the first yarn guide device, and a first yarn-pressing rotating wheel is installed above the first yarn guide roller; and a second yarn guide device is arranged on the side in the frame close to the yarn outlet. Yarn is brought into the dust removal device by means of the first yarn guide device; a driving electric motor is started, and a yarn rolling wheel rotates to rub the yarn, such that dust on the yarn is beaten out of same and collected in a dust collection box; the yarn is blown up by means of an air blower, and the dust is collected in a dust collection plate; and the treated yarn is then taken out by means of the second yarn guide device, thereby achieving automated dust removal treatment of the yarn, improving the quality of the yarn, and reducing manual operation.\nB: A continuous UD non-woven cloth production line comprises: a yarn frame (1) disposed at a forefront, a fiber dividing frame (2) disposed at a rear end of the yarn frame (1), and a frame (3) disposed at a rear end of the fiber dividing frame (2). A front end of the frame (3) is provided with a first tensioner (4) and a second tensioner (5). A reed (6) is disposed between the first tensioner (4) and the second tensioner (5) and on the frame (3). A front traction apparatus (7) is disposed at a rear end of the second tensioner (5) and on the frame (3). A fiber placement roller apparatus (8) is disposed at a rear end of the front traction apparatus (7) and on the frame (3). A gluing roller apparatus (9) is disposed at a rear end of the fiber placement roller apparatus (8) and on the frame (3). A coating placement roller mounting frame (10) and a composite material guiding roller (11) are disposed at a rear end of the gluing roller apparatus (9) and on the frame (3). A coating placement roller (12) is disposed at an upper end of the coating placement roller mounting frame (10).\nC: A novel sand making machine, comprising a machine frame (4). The machine frame comprises an upper machine frame (42) and a lower machine frame (41). The upper machine frame is provided with an upper screen tray device (6). The left and right sides of the upper machine frame are both provided with a first roller assembly (1). The bottom of the upper screen tray device is provided with several water distributors (5). The lower machine frame is provided with a lower screen tray device (7). The left and right sides of the lower machine frame are both provided with a second roller assembly (3). The sand making machine has a simple structure, a reasonable design, a small floor area, and a low manufacturing cost.\nD: A flat yarn warping machine comprises a stander (110) having a compression roller adjusting mechanism for adjusting both the position and the pressure of a compression roller (10), the flat yarn warping machine further comprises a group of edge yarn devices (24) arranged on the stander (110), and the edge yarn devices (24) are positioned above a warp beam flange (25) and above the end part of the compression roller (10). The edge yarn devices (24) comprise a mounting shaft (2441) fixed on the stander (110). An edge thread roller (2448) is provided on the mounting shaft (2441) positioned at one side of the stander (110). A roller mounting plate (2447) is provided on the mounting shaft (2441) positioned at one side of the edge thread roller (2448). A sliding shaft (2446) is provided on the roller mounting plate (2447). The other end of the sliding shaft (2446) is fixedly provided with a baffle plate (2443). A threaded shaft (2444) is arranged between the baffle plate (2443) and the roller mounting plate (2447). A sliding seat (2445) for guiding a flat yarn is arranged on the threaded shaft (2444), and the slide seat (2445) is also sleeved on the slide shaft (2446). An adjusting hand wheel (2442) is provided on the end part of the threaded shaft (2444). The flat yarn warping machine can keep the flat yarn from falling into the gap between the end part of the compression roller (10) and the warp beam flange (25), and thereby solving the problem of less uniformity of the warp beam flange surface.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA rapier loom, comprising a frame (1). The frame (1) is provided with a cross beam (2), one side of the frame (1) is provided with a suction fan (3), the suction fan (3) is provided with a connection tube (4) connected to the cross beam (2), the front end of the connection tube (4) is provided with a plurality of extension tubes (5) extending above a cloth cover, the front ends of the extension tubes (5) are connected to the same one connection tube (6), and the connection tube (6) is provided with a plurality of through holes (7). The rapier loom has the following advantages and effects: when the suction fan (3) and a driving motor (12) are running, fibers and dust floating above the intersections of warps and wefts can be suctioned away, and the fibers and the dust can be blocked by a brush roller (9), thereby ensuring a stable air suction effect of the suction fan (3), greatly reducing floating objects clamped between the warps and the wefts on the cloth cover, and ensuring the quality of cloth.\nA: Disclosed in the present utility model are a broken yarn detector applied to a rapier loom, comprising a detector body. The detector body is provided with a plurality of parallel yarn passing holes; an opening groove communicated with the yarn passing holes is provided in the upper end of the detector body; a bottom housing is vertically and slidably provided on the opening groove; a fixed plate is provided on one side of the bottom housing facing yarn; a pressure sensor connected to a controller is provided on the relative outer side of the fixed plate; a pressure transmitting plate is provided on the pressure sensor; a through hole is provided in each of the pressure transmitting plate and the fixed plate; a compression spring penetrating through the fixed plate is provided on the pressure transmitting plate; a tensile member is provided at the other end of the compression spring, and yarn penetrates through and abuts against the tensile member. The present utility model has the following advantages and effects: by arranging a temporary broken yarn detection device, temporary broken yarn detection can be carried out when one or more infrared detectors are damaged, thereby ensuring the working efficiency.\nB: Disclosed is an environmentally clean dust-free bench cutting machine, comprising a shell (1) and a cutting workbench (2) arranged on the shell (1), wherein a saw mouth (3) is provided in the cutting workbench (2), an air suction bin (6) is arranged below the cutting workbench (2), the saw mouth (3) also serves as an air suction bin air inlet, the air suction bin (6) is provided with an air suction bin air outlet (73), the air suction bin air outlet (73) is provided with a horizontal centrifugal separator (7), a separator dust falling opening (71) is provided at the rear end of the horizontal centrifugal separator (7), a first dust-collecting box (81) is arranged at the separator dust falling opening (71), a separator air outlet (72) is arranged at the front end of the horizontal centrifugal separator (7), a filter cylinder (9) is arranged at the separator air outlet (72), and a negative pressure fan (10) is mounted at an air outlet of the filter cylinder (9). According to the cutting machine, dust and gas pre-separation can be achieved on a dust-containing gas flow, thus dust-free cutting can be achieved, and long-term stable operation of the machine can also be ensured; and the machine is small in size and convenient to carry and use.\nC: A textile machine having an airflow conveyor and a filtering device, comprising an all-metal protective shell (1), an air inlet pipe (4), textile machine unwinding rollers (8) and an airflow conveyor (12); a dust removal filter (2) is mounted on the all-metal protective shell (1), a centrifugal suction fan (3) is mounted above the dust removal filter (2), the air inlet pipe (4) is mounted above the centrifugal suction fan (3), an auxiliary support roller (5) is provided above the air inlet pipe (4), a transverse textile roller (6) is mounted above the auxiliary support roller (5), a textile roller mounting frame (7) is mounted above the transverse textile roller (6), the textile machine unwinding rollers (8) are connected above the textile roller mounting frame (7), a textile roller adjuster (9) is mounted at one side of the textile machine unwinding roller (8) away from the textile roller mounting frame (7), a working platform (10) is mounted below the textile roller adjuster (9), a support roller adjuster (11) is connected below the working platform (10), the airflow conveyor (12) is mounted above the support roller adjuster (11), an operation control box (13) is mounted below the airflow conveyor (12), and a liquid crystal display panel (14) is mounted above the operation control box (13). The textile machine has the following beneficial effects that: the textile rollers can be adjusted to spin different yarns, and the air inside the textile machine can be absorbed and filtered, thus effectively solving the problem of clogging of the textile machine.\nD: Provided is a fabric adhesive powder suction device, comprising: a machine frame (1), wherein the middle part of the front end of the machine frame (1) is provided with a driving roller (2) for feeding; the middle part of the rear end of the machine frame (1) is provided with a driven roller (3) for discharging; the lower end of the machine frame (1) is provided with several support rollers (4); the driving roller (2), the driven roller (3) and the support rollers (4) are connected by means of a conveying mesh belt (5); a drive device (6) connected to the driving roller (3) is provided at the lower end of the machine frame (1); a front powder suction head (7) and a rear powder suction head (8) are respectively provided, from the front to the back, on the machine frame (1) at an upper end of the conveying mesh belt (5) between the driving roller (2) for feeding and the driven roller (3) for discharging; the front powder suction head (7) and the rear powder suction head (8) are connected by means of a branch powder suction pipe (9) and a main powder suction pipe (10) respectively; the main powder suction pipe (10) is connected to an upper suction ventilator (11); the upper suction ventilator (11) is provided on the machine frame (1); and a main blowing head (12) cooperating with the front powder suction head (7) is provided on the machine frame (1) at the front end of the front powder suction head (7) in an inclined manner. The device has a high degree of automation, reducing the labour intensity of workers, and has a high working efficiency.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a forming machine for warp and weft superimposed non-woven composite fabric, comprising a machine frame (1), a warp frame (2), a warp delivery apparatus (3), a rotating-type weft-laying apparatus (4), a sizing apparatus (5), a drying apparatus (6), and a rolling apparatus (7), wherein the weft-laying apparatus (4) comprises a rotating shaft (8), a weft bobbin mounting plate (9) and a yarn insertion tube mounting plate (10) mounted on the rotating shaft (8), and two weft selvage threads (11) respectively provided axially on the two sides of the rotating shaft (8). Weft bobbins (9-1) are mounted on the weft bobbin mounting plate (9), yarn insertion tubes (10-1) are mounted on the yarn insertion tube mounting plate (10), and the weft selvage threads (11) are located on the inside of yarn output ends of the yarn insertion tubes (10-1). The rotation of the rotating shaft (8) is driven by a drive mechanism, and the weft selvage threads (11) move in the transverse direction of the machine frame (1). When the rotating shaft (8) rotates, the weft (9-1-1) is laid between the two weft selvage threads (11) to form a weft layer (9-2). A warp layer (2-2) and the weft layer (9-2) are superimposed and pass successively through the sizing apparatus (5) for sizing and the drying apparatus (6) for drying, to then be rolled by the rolling apparatus (7) into rolled fabric. The forming machine has a high weft-laying speed, can prepare composite fabric of three or four layers superimposed together, has a simple structure, has a high yarn utilization rate, and occupies little floor space.\nA: A grinding device, comprising a rack (1), rotating mechanism sets (3), fixing assemblies (7), and tool bases (9). Two mounting bases (2) are arranged on the rack (1), and each of the plurality of rotating mechanism sets (3) comprises a first rotating mechanism (4) and a second rotating mechanism (5); the first rotating mechanism (4) and the second rotating mechanism (5) are correspondingly and fixedly installed on the two mounting bases (2), and the first rotating mechanism (4) and the second rotating mechanism (5) are driven by driving mechanisms (6) to rotate; each fixing assembly (7) is fixedly mounted on one of the first rotating mechanism (4) and the second rotating mechanism (5), is driven by one of the first rotating mechanism (4) and the second rotating mechanism (5) to rotate, and is mounted with a grinding piece (8); and each tool base (9) is fixedly mounted on the other one of the first rotating mechanism (4) and the second rotating mechanism (5) and is driven by the other one of the first rotating mechanism (4) and the second rotating mechanism (5) to rotate, and a grinding part (10) for grinding the corresponding grinding piece (8) is provided on each tool base (9). The grinding device can simultaneously grind a plurality of grinding pieces, and has the advantages of high production efficiency and good interchangeability of the grinding pieces.\nB: Disclosed is a coaxiality detection apparatus used for quickly clamping a product and positioning and detecting coaxiality of the product, and comprising a rotary shaft (1), a positioning apparatus (2), a rotating apparatus (3), a machine frame (4), a cylinder shaft (5), a clamping mechanism (6) used for clamping the cylinder shaft, a product clamping apparatus (7), a clamping sleeve (8), measuring seats (9), and dial indicators (10), wherein a sheathing apparatus (33) on the machine frame (4) is sheathed on the rotary shaft (1) and fixed to the rotary shaft (1) via the positioning apparatus (2); the cylinder shaft (5) is embedded in a hollow cavity (20) of the rotary shaft (1), and passes through the clamping mechanism (6); the product clamping apparatus (7) is also mounted in the hollow cavity (20) of the rotary shaft (1), connected to the cylinder shaft (5), and closely gripped at an open groove (41) of the shaft (5); the clamping sleeve (8) is mounted on an outer surface of a flange of the rotary shaft (1) and clamped with the product clamping apparatus (7); and the two dial indicators (10) on the two measuring seats (9) are respectively perpendicular to and coaxial with a reference centre of the rotary shaft (1). The coaxiality detection apparatus can achieve fast clamping, fast detection and accurate positioning, improving working efficiency.\nC: Adhesive-free artificial turf comprises a base fabric (1) and grass tufts (2) woven thereon. Each of the grass tufts (2) comprises 2-16 turf fibers. The base fabric (1) comprises warp yarns (11) and weft yarns (10). The warp yarns (11) comprise first warp yarns and second warp yarns separated by a space therebetween. The first warp yarns comprise 1-6 first warp lines (110), and the second warp yarns comprise 4-7 second warp lines (111). Middle portions of the grass tufts (2) are woven and interlaced with the 1-4 weft yarns (10) along an extension direction of the warp yarns (11), and two ends of the grass tufts (2) respectively extend out of the base fabric (1) on the same side. Any two adjacent grass tufts (2) in a row of grass tufts (2) extending along an extension direction of the weft yarns (10) on the base fabric (1) are separated by a space having a width of 3-5 warp yarns (11). Any two adjacent grass tufts (2) in a column of grass tufts (2) extending along the extension direction of the warp yarns (11) on the base fabric (1) are separated by a space having a width of 4-7 weft yarns (10). A space between any two adjacent rows of grass tufts on the base fabric (1) has a width of 1-2 weft yarns (10). The adhesive-free artificial turf has advantages of favorable breathability and drainage, and strong adhesiveness.\nD: Disclosed is a cylindrical combination machine, comprising: a rack (1), wherein a woollen material loading stage (2) is arranged at a front end of the rack (1); an upper traction sizing press roll (3) and a lower traction sizing press roll (4) fitting with the upper traction sizing press roll (3) are arranged on the rack (1) at a rear end of the woollen material loading stage (2); a vertical adjusting device (5) connected to the upper traction sizing press roll (3) is arranged on the rack (1) at an upper end of the upper traction sizing press roll (3); a front sizing device (6) fitting with the upper traction sizing press roll (3) is arranged on the rack (1) at a front end of the upper traction sizing press roll (3); a rear sizing device (7) fitting with the lower traction sizing press roll (4) is arranged on the rack (1) at a rear end of the lower traction sizing press roll (4); a cylinder (9) is arranged obliquely upwards at a rear end of the rack (1) by means of a support (8); a tapered feeding channel (10) is arranged in the cylinder (9); and a tapered clamping rod (11) is arranged at an upper end of the tapered feeding channel (10) in a penetrating manner.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA novel cheese dyeing machine comprises a cylinder body (5), a yarn rack (15), yarn bamboo (16) and a driving motor (26), wherein the yarn rack (15) and the yarn bamboo (16) are arranged in the cylinder body (5); a centrifugal pump (27) and a heat exchange coiled pipe (18) are also arranged in the cylinder body (5); the heat exchange coiled pipe (18) is arranged at a bottom of the cylinder body (5); a shell of the centrifugal pump is divided into two parts, one half of the shell is integrated with a cylinder bottom (3), and the other half of the shell (11) can be separated and jointed with the cylinder bottom (3); the centrifugal pump comprises double suction ports (25a, b) and is provided with an electronic speed-regulating control system for controlling a rotary speed of the centrifugal pump (27); and the heat exchange coiled pipe (18) is fixed below the yarn rack (15) and is externally connected to a water and steam source. A fluid flow control system controls dyeing fluid to flow one-way, and a pressurization and depressurization system, an injection system and a temperature increasing and decreasing system are also arranged. The dyeing machine can be widely used in the dyeing and finishing industry.\nA: An internal circulation indoor temperature regulation and control system, comprising a fluid storage, heating and refrigerating device and a controller. The fluid storage, heating and refrigerating device comprises a fluid storage container (1), a heater and a refrigerator, the fluid storage container (1) is connected to a water distributor (5) by means of a water outlet pipeline (4), the water distributor (5) is connected to a cold-heat exchange coil pipe (7), the other end of the cold and heat exchange coil pipe (7) is connected to a water collector (8), the water collector (8) is connected to the fluid storage container (1) by means of a water return pipeline (12), a circulating pump (10) is arranged on the water return pipeline (12), and a flow control valve (6) is arranged on the cold-heat exchange coil pipe (7); and the controller comprises a control main machine (3) and a temperature sensor, wherein the control main machine (3) is respectively connected to the temperature sensor, the heater, the refrigerator, the flow control valve (6) and the circulating pump (10).\nB: Provided is a novel sanitary self-priming pump, comprising a motor (20), a centrifugal pump (18) and a circulating reflux pipeline. The circulating reflux pipeline is formed by a water-sealing bend pipe (7), a water-sealing ball (8), a gas-liquid separation chamber (10) and the like; two ends of the circulating reflux pipeline communicate with a water inlet pipe and a water outlet pipe (16) of the pump; and the circulating reflux pipeline has functions of automatically opening and closing, separating gas and liquid, and sealing water, so that a common sanitary centrifugal pump becomes the novel sanitary self-priming pump with a self-priming function. On the premise that the pump meets the requirement of a sanitary property, the defects of low efficiency and large noise of a traditional self-priming pump are overcome, and the novel sanitary self-priming pump has a performance feature of the centrifugal pump, which can meet different working condition requirements by changing the rotation speed or changing an outer diameter of an impeller. It is simple in manufacturing process, has no quick-wear part, and is reliable to use, stable in performance, high in practicability, high-efficient, energy-saving and noise-reducing.\nC: An airflow dyeing machine capable of independently supplying air by multiple pipes comprises a main cylinder (1), a lifting roller (2), a connection pipe, two or more fans (3), and a nozzle combination (5) connected to the fans. One end of each fan (3) is connected to an independent air draft pipe, and the other end is connected to the independent nozzle combination (5). The fans (3) are arranged at the top of the main cylinder (1). Outlets of the fans are docked with airflow inlets of the nozzle combination (5). Fans and dyeing pipes are controlled by each independent circuit control system. A first nozzle mouth (19) is formed by a gap of an upper nozzle barrel (12) and a lower nozzle barrel (13) in the nozzle combination (5). A second nozzle mouth (20) is formed by a gap between an interception ring (14) and the tail of the lower nozzle barrel (13). A U-shaped baffle (15) is arranged between the tail of the lower nozzle barrel (13) and the interception ring (14), so that the airflow is centrally jet from lower part of the nozzle mouth. By means of the dyeing machine, the efficiency and the dyeing quality are greatly improved, the power consumption is reduced, and the operation flexibility is increased.\nD: An electric centrifugal pump comprises a water pump housing (1), a water sealing bearing (2), a water pump impeller (3), an elastic gasket (4), an internal motor housing (5), a bearing seat (6), a rotor front bearing (7), a motor stator (8), a motor rotor (9), a motor rotor shaft (10), a motor rotor back bearing (11), a pilot impeller (12), a pilot impeller cover (13), a water pump drive control panel (14), a controller cover (15), and an external motor housing (16). A water pump water inlet cavity, a shaft through hole of the motor rotor, the pilot impeller (12), a pilot impeller cavity of the pilot impeller, a helical overflow hole (52) of the internal motor housing, a rotor cavity, a helical overflow hole (62) of the bearing seat and the water pump impeller (3) sequentially communicate with one another and form an internal forced cooling system. The electric centrifugal pump of the present invention has a simple structure and reasonable design, and can reduce flow losses of water while enhancing cooling performance of the internal cooling system, thereby better addressing the thermal load problem experienced by an electric centrifugal pump, and improving reliability of the electric centrifugal pump.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an apparatus for cleaning a surface of a textile fabric, the apparatus comprising a base (1). Supporting rods (2) are provided on two sides of the top of the base (1), and a top portion of each supporting rod (2) is connected to a roller (4) by means of a bearing (5). A cleaning band (24) is connected between the two rollers (4), and an electric motor (23) is arranged in the middle of the top of the base (1). A surface of the electric motor (23) is connected to each roller (4) by means of a driving belt (14), and pipes (21) are provided on two sides of an inner cavity of the base (1), with one side of the pipes (21) being connected to a U-shaped tube (18). A positive plate (17) and a negative plate (19) are respectively provided at two sides of an inner cavity of each U-shaped tube (18), and a filter screen (26) is provided at a top side of the inner cavity of the U-shaped tube (18). The top of the U-shaped tube (18) at one side is connected to a suction fan (27), and both sides of the top of the base (1) are connected to pillars (3). A fabric feed channel (13) is arranged across an inner cavity of the pillars (3). A gas ejector pipe (7) is provided between the two pillars (3), and a left side of a ventilation pipe (12) is connected to a heating chamber (10). A heater (11) is provided in an inner cavity of the heating chamber (10), and a left side of the heating chamber (10) is connected to a blower (9). The cleaning apparatus has the advantage of being able to remove fluff on the surface of a fabric and solves the problem of a reduced production quality of fabrics.\nA: A polishing apparatus for mobile phone housing production, comprising a base (1). Partition plates (2) are provided at both sides of an inner cavity of the base (1); both the tops and the bottoms of the partition plates (2) are fixedly connected to the inner wall of the base (1); a first motor (3) is fixedly connected to the bottom of the inner cavity of the base (1); threaded rods (4) are fixedly connected to both sides of an output end of the first motor (3); sides of the two threaded rods (4) facing away from each other are movably connected to the partition plates (2). By providing the base, the partition plates, the first motor, the threaded rods, threaded sleeves, an adjustment plate, adjustment recesses, adjustment wheels, support rods, a placement plate, fixed rods, second air cylinders, clamping plates, dust suction hoods, dust removal boxes, fans, filtering elements, third air cylinders, cleaning brushes, accommodation housings, and blocking plates, the problems of the existing polishing apparatuses for mobile phone housing production that fixing is not stable enough and that the apparatuses have no dust collection function are solved. The polishing apparatus for mobile phone housing production has the advantages of stable fixing and dust collection, and is worthy of promotion.\nB: Disclosed is a textile dye stirrer capable of uniform stirring, comprising a workbench (1), wherein the top of the workbench (1) is provided with a sliding groove (3), two sides of an inner chamber of the sliding groove (3) are both provided with a sliding rod (19), the top of the sliding rod (19) is provided with a stirring box (5), the top of the workbench (1) is provided with a connecting rod (18), the top of the connecting rod (18) is provided with a bearing plate (10), the bottom of the bearing plate (10) is provided with a stirring motor (9), an output end of the stirring motor (9) is provided with a rotary shaft (6), the top of the rotary shaft (6) passes into the stirring box (5) and extends into the inner chamber of the stirring box (5), two sides of the rotary shaft (6) are both provided with a stirring blade (7), the top of the left side of the stirring box (5) is provided with a feed port (11), and the bottom of the right side of a stirring box (5) is provided with a discharge port (4).\nC: A rapid carding device for a textile fabric, comprising a machine body (1). The inner wall of the machine body (1) is rotatably connected to two rotating rollers (2). Hollow cavities are arranged in the middles of the two rotating rollers (2). Dust suction holes (20) in communication with the hollow cavities are uniformly arranged on outer walls of the rotating rollers (2). Bristles (3) are uniformly arranged on the surfaces of the rotating rollers (2). A negative pressure device for enabling the dust suction holes (20) to generate negative pressure is mounted on the inner wall of the machine body (1). The machine body (1) is further provided with an ironing mechanism for ironing the textile fabric. The inner wall of the machine body (1) is rotatably connected to a press roller (18). The surface of the fabric is cleaned by the bristles (3) to remove thread residues and debris on the surface of the fabric. A sliding plug (21) reciprocates to keep the negative pressure at the dust suction holes (20) so as to clean the thread residues and debris brushed by the bristles (3). Gas heated by a heating wire (13) sprays out of a gas spray hole (16) by means of a second gas guide tube (14) so as to iron the fabric. The device can adapt to the carding of different fabrics by setting to adjust the distance between an arc-shaped plate (19) and the press roller (18).\nD: Disclosed is a vacuum pump maintenance device, comprising a base (1), wherein an adjusting base (2) is arranged at the top of the base (1), a frame (3) is fixedly connected to the top of the adjusting base (2), a partition plate (4) is fixedly connected to the bottom of an inner cavity of the base (1), first air cylinders (5) are fixedly connected to two sides of the partition plate (4), moving blocks (6) are fixedly connected, on the sides away from the partition plate (4), to the output ends of the first air cylinders (5), supporting strips (7) are movably connected to the tops of the moving blocks (6), and the ends of the supporting strips (7) away from the moving blocks (6) extend to the top of the base (1) and are movably connected to the adjusting base (2). By means of providing the base (1), the adjusting base (2), the frame (3), the partition plate (4), the first air cylinders (5), the moving blocks (6), the supporting strips (7), a filter housing (8), exhaust fans (9), an opening (10), fixed boxes (11), placement frames (12), first electric motors (13), threaded rods (14), threaded sleeves (15), connecting rods (16), a second air cylinder (17), an apparatus box (18), a second electric motor (19) and a cleaning brush (20), the problem of maintenance being inconvenient to carry out on a vacuum pump is solved, and the vacuum pump maintenance device has the advantage of facilitating the maintenance of a vacuum pump.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fabric surface dust removal apparatus for textile fabric production, the apparatus comprising: a rack (5); a base (8), which is arranged at the bottom of the rack (5); a first guide rod (6) and a second guide rod (3), which are rotationally arranged at two sides in the rack (5); and two tensioning rods (7), which are rotationally arranged at lower side in the rack (5), wherein a separation assembly (1) is arranged at the bottom in the rack (5), and a dust collection assembly (4) is arranged at the top in the rack (5). The separation assembly (1) comprises a bearing box (101) and an ejector rod (106), wherein the bearing box (101) is arranged at the bottom of the rack (5); a crankshaft (102) is rotationally arranged in the bearing box (101); one end of the crankshaft (102) is connected to a driving shaft of a driving electric motor (103); the driving electric motor (103) is arranged on a surface of one side of the bearing box (101); a connecting rod (110) is hinged to the middle of the crankshaft (102); the other end of the connecting rod (110) is hinged to a lug plate (109); the lug plate (109) is arranged at the bottom of a piston cylinder (104); the piston cylinder (104) is connected to a sliding sleeve (108) in a sliding manner; the sliding sleeve (108) is arranged at the bottom in the rack (5); the ejector rod (106) is arranged at the top of the piston cylinder (104); and a push plate (105) is arranged at the top of the ejector rod (106). By means of the fabric surface dust removal apparatus, fabric can be oscillated, thereby facilitating the fast separation of dust from the fabric, and at the same time, dust can be subjected to multi-stage adsorption treatment, such that the dust treatment effect is good, and the practicability is high.\nA: A dust suction device of a calendering machine, comprising a support base. A top plate is provided above the support base; a plurality of supports are provided between the top plate and the support base; a fixing plate is provided in the middle of the lower end surface of the top plate; connecting frames are hingedly connected to both the front side and the rear side of the fixing plate, and each connecting frame comprises two connecting rods and a fixing frame; the two connecting rods are symmetrically provided at the two sides of the fixing plate, and top ends of the connecting rods are hingedly connected to the fixing plate; each fixing frame comprises a horizontal plate provided at the top of the fixing frame and vertical plates provided at two sides of the bottom of the horizontal plate, and a cleaning roller is rotatably provided between the bottoms of the two vertical plates; a connecting plate is provided between connecting rods at two sides of each connecting frame, a first rectangular hole is formed on the connecting plate, a rotating plate is rotatably provided in the first rectangular hole, and an adjusting lead screw is threadedly connected to front and rear rotating plates. In the present utility model, the distance between two cleaning rollers can be adjusted by rotating the adjusting lead screw, such that the two cleaning rollers can always be maintained in close contact to a fabric, thereby better cleaning dust and debris on the fabric.\nB: A glue feeding and scraping apparatus for a controllable composite fabric production device, comprising a glue storage box (8) and a glue application roller (2) which is provided on an upper side surface of the glue storage box (8); and a glue scraping assembly (1) is provided on one side of the glue application roller (2), and a cleaning assembly (3) is provided at an inner bottom part of the glue storage box (8). The glue scraping assembly (1) comprises a carrier frame (107) and a transverse frame (108), the transverse frame (108) is provided within the carrier frame (107), a thread nut (102) is provided on one side surface of the transverse frame (108), one end of the thread nut (102) is connected to a transverse screw rod (103), the transverse screw rod (103) is rotatably arranged on a side surface within the carrier frame (107), one end of the transverse screw rod (103) is connected to a drive motor (101), the drive motor (101) is connected to a PLC controller (5) by means of a connecting wire, and a scraper (104) is provided on one side surface of the transverse frame (108). The device can precisely control the feeding amount of the scraper (104), meet glue application requirements for gluing different composite fabrics, and at the same time can quickly clean the glue storage box (8).\nC: A cutting fixing device for textile manufacturing, comprising a cutting table (3) and a vertical support (2) provided on the upper side surface of the cutting table (3). One side of the vertical support (2) is provided with a fixing assembly (1); the vertical support (2) is connected to the cutting table (3) by means of a direction adjustment assembly; the fixing assembly (1) comprises a horizontal support (102) and an electric push rod (101); the electric push rod (101) is provided on the upper side surface of the horizontal support (102); a bearing support (111) is provide at the bottom of a piston rod of the electric push rod (101); a pressing sleeve (103) and a second pressing sleeve (110) are symmetrically provided on one side surface of the bearing support (111); a first spring (104) is provided at the inner top portion of the first pressing sleeve (103); one end of the first spring (104) is fixedly connected to a first pressing rod (105); the first pressing rod (105) is slidably connected in the first pressing sleeve (103); a first pressing pad (106) is provided at the bottom of the first pressing rod (105); a second spring (109) is provided at the inner top portion of the second pressing sleeve (110); one end of the second spring (109) is fixedly connected to the second pressing rod (108); the second pressing rod (108) is slidably connected in the second pressing sleeve (110); and a second pressing pad (107) is provide at the bottom of the second pressing rod (108).\nD: A new-type time-controlled cleaning device for composite fabric production. The cleaning device comprises a cleaning tank, and a water collection tank, which is arranged at the top of the cleaning tank, wherein a cleaning assembly is provided on one side of the interior of the cleaning tank, and a drying assembly is provided on the other side of the interior of the cleaning tank; the cleaning assembly comprises a first carrying frame and a second carrying frame, one end of the first carrying frame is fixedly connected to the second carrying frame by means of a connecting frame, a first spray head is provided on one side of a lower surface of the first carrying frame, and a second spray head is provided on one side of an upper surface of the second carrying frame; a stand is provided at the bottom of the second carrying frame, and a sliding block is provided at the bottom of the stand; one end of the sliding block is slidably arranged inside a sliding groove, the surface of one side of the sliding block is provided with an ejector rod, and one end of the ejector rod is fixedly connected to the surface of one side of a cylinder body; the cylinder body is slidably arranged inside a guide sleeve, the guide sleeve is arranged inside the sliding groove, and the surface of the other side of the cylinder body is provided with a lug plate; and a connecting rod is hinged inside the lug plate, and one end of the connecting rod is hinged to a crankshaft. By means of the cleaning device, a composite fabric can be quickly cleaned, and water can also be separated from the composite fabric, thereby shortening a drying period and achieving high practicality.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an anti-propylene mask and a method for preparation thereof; the anti-propylene mask comprises a fiber cloth contact layer, an antistatic non-woven fabric layer, and a fullerene/nano titanium dioxide spunbond layer which are arranged in sequence; the fullerene/nano titanium dioxide spunbond layer is made by spun-bonding the modified resin material into a fiber web; the raw materials of modified resin materials comprise matrix resin, carboxylated fullerene derivatives, nano titanium dioxide, lubricants, and coupling agents; the modified resin material is prepared by means of the following method: a carboxylated fullerene derivative is mixed and reacted with said nano titanium dioxide to prepare a nano titanium dioxide modified by the carboxylated fullerene derivative, which is then blended and extruded with the remaining components in the raw material, and thus prepared; the mask of the present invention is not only easy to use but also convenient to carry, and can prevent propylene from entering the human body through the human respiratory organs, has a good anti-propylene effect, and also has an anti-static function, and is particularly suitable for use in a propylene production workshop.\nA: The present invention provides a titanium dioxide nanobelt@MOF composite material, a preparation method therefor, and use thereof. The preparation method comprises the following steps: preparing a titanium dioxide nanobelt; carboxylation-treating the titanium dioxide nanobelt, so as to obtain a carboxyl-modified titanium dioxide nanobelt; and mixing the carboxyl-modified titanium dioxide nanobelt, a metal salt, and an organic ligand, and then performing a heating and crystallization treatment, so as to obtain a titanium dioxide nanobelt@MOF composite material. In said method, carboxyl functional modification is performed on the surface of the TiO 2  nanobelt and further an MOF material is grown in situ, allowing a simple process and low costs, achieving the preparation of a TiO 2  nanobelt@MOF composite material which has a shell layer having a controllable thickness and connected by means of covalent bonds, providing a good application prospect. The titanium dioxide nanobelt@MOF composite material provided in the present invention has a porous core-shell structure having a shell layer and an inner core, the core being a titanium dioxide nanobelt, and the shell layer being an MOF layer connected to the surface of the inner core by means of covalent bonds, improving the photocatalytic performance, providing high visible light response capability.\nB: Disclosed is a composite material comprising an inorganic non-metal mineral as a support and a nano titanium dioxide layer carried on the support, with the layer consisting of a plurality of titanium dioxide nano spheres and the titanium dioxide nano spheres consisting of a plurality of individual titanium dioxide nano particles. Also disclosed is that one or more multi-functional layers are additionally carried on the titanium dioxide nano layer on the composite material. The composite material not only exerts the advantages of the nano titanium dioxide layer of having a high refractive index and high coverage capacity, but also exerts the good photocatalytic activity of the small individual nano particles therein, and facilitates the coating with other functional layers so as to prepare functionally enhanced or multifunctional composite materials. In addition, a preparation process for the composite material is provided, which is easy and low in cost. The composite material can be used in various industrial fields as an additive, and has good compatibility.\nC: The present invention relates to a plastic composite material capable of being polished and connected to metal, and a preparation method therefor. The composite material comprises, in parts by weight, the following components: PBT: 50-80; GF: 10-50; nano titanium dioxide: 1-5; a dispersing fluid medium: 3-10; compatibilizer: 1-8; a toughening agent: 5-10; an antioxidant: 0.1-1; and a lubricating agent: 0.1-1. The preparation method therefor comprises: (a) mixing the PBT resin, the nano titanium dioxide, the toughening agent, the compatibilizer, the antioxidant, and the lubricating agent in a mixer; and (b) subjecting the mixture obtained in step a to blending granulation by means of a double-screw extruder, laterally feeding the GF, and performing melt extrusion and granulation to obtain the plastic composite material. Compared with the prior art, the plastic composite material provided by the present invention has high affinity with metal and excellent post-processing polishing performance by adding a compatibilizer by means of a special process.\nD: Disclosed are a melt-blown composite nanometer antibacterial super-soft nonwoven material and a preparation method. The melt-blown composite nanometer antibacterial super-soft nonwoven material comprises a first flexible melt-blown layer (1), a first nanofiber antibacterial layer (2), a nanofiber hydrophilic layer (3), a second nanofiber antibacterial layer (4) and a second flexible melt-blown layer (5), which are arranged successively from top to bottom, and both the first nanofiber antibacterial layer (2) and the second nanofiber antibacterial layer (4) are formed by alternately laminating a nanometer titanium dioxide material layer (6) and a nanofiber antibacterial material layer (7). The first flexible melt-blown layer (1) and the second flexible melt-blown layer (5) provide the melt-blown composite nanometer antibacterial super-soft nonwoven material with a better softness, a good hand feeling and a high comfort degree. A sustained antibacterial body is formed by alternately laminating the nanofiber antibacterial material layer (7) and the nanometer titanium dioxide material layer (6), making the nonwoven material have a lasting antibacterial effect. The nanometer titanium dioxide layer (6) also has a good anti-ultraviolet function. The nanofiber hydrophilic layer (3) makes the nonwoven material have a good hydrophilicity.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn improved pulp washer or shredder, comprising a rotating swivel roller (4) and a squeezing central roller (7). A supporting net (8) covers the swivel roller (4) and the squeezing central roller (7); a material distribution device (9) for distributing materials to the supporting net (8) is disposed between the swivel roller (4) and the squeezing central roller (7); an unloading device is disposed at the inner side of the squeezing central roller (7); at least one squeezing sub-roller (10) which abuts against the squeezing central roller (7) is disposed on the squeezing central roller (7); and all of the squeezing sub-rollers (10) are in contact with the supporting net (8).\nA: A pneumatic vacuum pressing apparatus, comprising a pressing cylinder (9), a juice receiving part (17), a piston (10), a filter (12), a frame (1), and an electric gas supply module. The piston (10) is slidably mounted in the pressing cylinder (9). The outer edge of the piston (10) tightly fits the inner edge of the pressing cylinder (9). The piston (10) divides the interior of the pressing cylinder (9) into a positive pressure air cavity (8) and a pressing cavity (30). The pressing cavity (30) is in communication with the juice receiving part (17) to constitute a sealed cavity (31) that is through within. The filter (12) is provided within the pressing cavity (30), within the juice receiving part (17), or between the pressing cavity (30) and the juice receiving part (17). Kept in a vacuum environment are food such as fruits or vegetables whilst being pressed and the juice (comprising oil) when entering the juice receiving part or a juice receiving can, thus preventing the problem in the prior art of discoloration and deterioration of the juice due to oxidation.\nB: A device for washing a paper pulp, comprising a roller extrusion mechanism (100) and a pulp transport mechanism (200). The roller extrusion mechanism (100) comprises a master roller (101) and a plurality of sub-rollers (102), the sub-rollers (102) being provided along the circumferential direction of the master roller (101) around the central axis of the master roller (101), and the sub-rollers (102) abutting against the master roller (101) in a radial direction and forming corresponding nips (103). The pulp transport mechanism (200) comprises a pulp transport mesh assembly (201), the pulp transport mesh assembly (201) being loaded with paper pulp and transporting same between the master roller (101) and each of the sub-rollers (102), and the paper slurry being washed in the nips (103). Less sub-rollers (102) are used for obtaining the same nips (103), and the nips (103) are distributed in a vertical direction, making the overall structure more compact.\nC: An electric-powered vacuum pressing machine, comprising a pressing cylinder (9), a juice receiving part, a piston (10), an electric-powered telescoping mechanism, an electric vacuuming pump (17), and a machine body (7). The sliding piston (10) is mounted in the pressing cylinder (9). The outer edge of the piston (10) tightly fits the inner edge of the pressing cylinder (9). The piston (10) divides the pressing cylinder (9) into a travel cavity (2) and a pressing cavity (13) separated from each other. The top surface of the piston (10) is arranged within the travel cavity (2). The bottom surface of the piston (10) is arranged within the pressing cavity (13). Kept in a vacuumed environment are food such as fruits or vegetables whilst being pressed and the juice (comprising oil) when entering the juice receiving part or a juice receiving tanks, thus preventing the problem in the prior art of discoloration and deterioration of the juice due to oxygenation. Compared with a vacuum spiral juice pressing machine, cleaning is easy (each time after use, washing is required for only three components, namely the juice receiving part, the pressing cylinder (9), and the piston (10), while the vacuum spiral juice pressing machine requires the washing of seven components, namely a sealing cover, a feeder cylinder, a spiral shaft, a cylindrical filter, a juicing cavity, a juice receiving cup, and a pulp cup) and operation is easy (only the three components need to be mounted at minimum, while the vacuum spiral juice pressing machine requires at least the 7 components to be mounted).\nD: A satellite rotary screen transfer printing device, comprising: a center roller (1) and at least one rotary screen transfer printing assembly (100) distributed around the circumference of the center roller. The center roller is mounted on a frame (2) in such a manner that the center roller can rotate about the central axis of the center roller. A fabric (3) available for printing enters the space between the center roll and each rotary screen transfer printing assembly for printing. Each rotary screen transfer printing assembly comprises a rotary screen plate roller (102) prefabricated with a pattern and a transfer roller (103) used for transferring the pattern on the rotary screen plate roller to the fabric. The transfer roller is between the rotary screen plate roller and the center roller. The rotary screen transfer printing assembly further comprises a scraper assembly (104). The scraper assembly comprises a scraper built in the rotary screen plate roller. The position and pressure of the scraper relative to the inner surface of the rotary screen plate roller are adjusted by means of a scraper adjustment mechanism.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA warp self-binding forming fabric, relates to the technical field of forming fabrics for paper making, comprises a face layer, a bottom layer, and connection lines. The face layer is a plain structure formed by alternately interlacing face warps and face wefts. The bottom layer is a satin structure formed by alternately interlacing bottom warps and bottom wefts. The connection lines are arranged in pairs, and connect the face layer and the bottom layer in the warp direction. The connection lines are alternately interlaced in the upper-layer net and the lower-layer net regularly, so that the upper-layer net and the lower-layer net are connected together, the relative twisting movements and slides do not occur, thereby eliminating internal abrasion. The forming fabric has the advantages of stable dewatering performance, short dewatering time, uniform mesh sizes, prevention of internal abrasion of the three-layer net, longer service life and easiness in cleaning.\nA: A paper diaper having a new type of absorption layer and processing method therefor. The paper diaper comprises a surface layer (1), an absorption layer, a bottom layer (5), and waist stickers. The absorption layer is between the surface layer (5) and the bottom layer (5). The absorption layer has multiple sewing threads (7) interpenetrating therein for dividing the absorption layer into and fastening multiple web structures. The sewing threads can penetrate the surface layer (1), and separately connect the surface layer (1) and the bottom layer (5), thereby forming an integral body. The absorption layer can comprise a fluff pulp layer (3), a dispersion layer (2) thereabove, and an absorbent paper layer (4) therebelow. The sewing threads (7) can penetrate the fluff pulp layer (3), and separately connect the dispersion layer (2), and the absorbent paper layer (4). The fluff pulp layer (3) can be provided with multiple fiber coagulation points. The paper diaper is simple in structure, economic, practical, safe, sanitary, and comfortable. The absorption layer is not easy to deform and fracture. The processing method has a simple production process and high production efficiency.\nB: A diaper pad having a new type of absorption layer and processing method therefor. The diaper pad comprises a surface layer (1), an absorption layer, and a bottom layer (5). The absorption layer is between the surface layer (1) and the bottom layer (5). The absorption layer has multiple sewing threads (7) interpenetrating therein for dividing the absorption layer into and fastening multiple web structures. The sewing threads can penetrate the surface layer (1), and separately connect the surface layer (1) and the bottom layer (5), thereby forming an integral body. The absorption layer can comprise a fluff pulp layer (3), a dispersion layer (2) thereabove, and an absorbent paper layer (4) therebelow. The sewing threads (7) can penetrate the fluff pulp layer (3), and separately connect the dispersion layer (2), and the absorbent paper layer (4). The fluff pulp layer (3) can be provided with multiple fiber coagulation points. The diaper pad is simple in structure, economic, practical, safe, sanitary, and comfortable. The absorption layer is not easy to deform and fracture. The processing method has a simple production process and high production efficiency.\nC: An industrial fabric, which relates to the technical field of engineering textiles. The industrial fabric is a mesh woven from warp yarns made of monofilament materials and weft yarns made of monofilament materials. The warp yarns are of a double-layer structure. One of warp yarn basic units comprises four sub-units, two sub-units being located on an upper layer, the other two sub-units being located on a lower layer. The warp yarns on the upper layer and the warp yarns on the lower layer are in a vertical overlapping relationship, wherein at least two units comprise two parallel narrow warp yarns (1t, 2t). Upper warp yarns and lower warp yarns, namely front warp yarns and back warp yarns (3b, 5b, 6b), are identical in texture structure, or one surface is identical to the other surface after rotating by 180 degrees. The industrial fabric is stable in structure and good in overall consistency, does not deform easily, and is durable. The upper surface is good in flatness, the surface is free from defects, and the quality and intensity of the fabric are improved, such that the quality and efficiency of paper making are guaranteed, the rejection rate is reduced, and the cost is greatly reduced. The industrial fabric is applied to paper making meshes, can also serve as a conveyor belt, and is widely applied to the industries such as paper making, chemical engineering, medicine and machinery.\nD: Disclosed is a skid-resistant carpet rubber mat layer. The skid-resistant carpet rubber mat layer comprises a bottom layer, which is a skid-resistant water-repellent layer (5), and an upper layer, which is a bonding layer (4), and the bonding layer (4) is a single-face fabric provided with a plurality of monofilament protrusions. The bonding layer (4) is a single-face fabric made of monofilaments with a unit of 20D or above and provided with protrusions, or a single-face structure layer formed by splitting the middle of a three-dimensional mesh cloth structural layer, and the three-dimensional mesh cloth structural layer is composed of an upper-layer warp-knitted mesh fabric and a lower-layer warp-knitted mesh fabric, and a plurality of terylene, polypropylene or nylon monofilaments that are vertically arranged in the middle and are used for connecting the upper-layer warp-knitted mesh fabric and the lower-layer warp-knitted mesh fabric. The skid-resistant carpet rubber mat layer can be used in combination with various carpet surfaces, and the bonding strength is moderate, such that the situation of the carpet surface being damaged during detaching due to excessive bonding force is avoided, and the situation of the carpet surface being prone to displacement and upwarping due to a bonding force being too low is also avoided. Meanwhile, the skid-resistant carpet rubber mat layer has advantages such as being capable of being rolled, capable of being folded, capable of being washed by a machine, and being convenient to lay and convenient to transport.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA striking sheet of an icebreaking rod can be hinged on supporting seats evenly distributed on an outer periphery of the icebreaking rod, and comprises an S-shaped smooth curve bended connecting arm (1), which may be a curved-surface plate-shaped arm or rod-shaped crank arm. A removable striking blade device is arranged on the head portion of the S-shaped smooth curve bended connecting arm, and the tail end of the connecting arm is connected with a shaft sleeve (2) and a damping limiting device (5) matched with the shaft sleeve. The striking sheet of an icebreaking rod can reduce the impact force of an icebreaking blade on a hinged shaft and the supporting seats, disperse the impact force borne by the connecting arm and prolong service life. The icebreaking blade is removable, so that using cost is reduced, and maintenance cost is reduced.\nA: Provided is a bogie wheelset radial mechanism with a structure which is of adjustable rigidity. The mechanism is composed of front and rear secondary frames (21) which are pin-connected via two connecting rods (22) arranged in a crosswise manner. The connecting rods (22) are pin-connected to the secondary frames (21) via round pins (24). Joints between the round pins (24) and the connecting rods (22) and/or joints between the round pins and the secondary frames (21) are provided with replaceable elastic materials. The joints between the round pins (24) and the connecting rods (22) and/or the joints between the round pins and the secondary frames (21) are provided with rings (23) made of the replaceable elastic materials. End portions of the connecting rods (22) are embedded into mounting grooves (25) located in the secondary frames (21) and are pin-connected to same via the round pins (24). The end portions of the connecting rods (22) are located on an upper mounting plane (31) or a lower mounting plane (32) of the secondary frames (21) and are pin-connected to same via the round pins (24). By providing the replaceable elastic materials, which have buffering and damping effects, impact forces between the round pins (24) and the secondary frames (21) and between the round pins (24) and the connecting rods (22) are effectively reduced, thereby further improving the use reliability of the secondary frames (21) and the connecting rods (22), and reducing the risk of structural failure of each part.\nB: A multi-roller and multi-shaft combined de-icing apparatus comprises three rolling and scraping de-icing rollers(1), a working apparatus bracket (2), a fixed portal frame (5), a lifting portal frame (6), a buffering pull rod (7), and an oil cylinder (8). The fixed portal frame (5) is fixed on a vehicle frame; the lifting portal frame (6) is in sliding fit with the fixed portal frame (5); the working apparatus bracket (2) is hingedly connected to the lifting portal frame (6); the rolling and scraping de-icing rollers are mounted at a lower end of the working apparatus bracket (2) by using shock absorbing springs (14) and arranged on three shafts in two rows; the buffering pull rod (7) is disposed in the middle of the fixed portal frame (5); two ends of the buffering pull rod (7) are hingedly connected to the fixed portal frame (5) and the working apparatus bracket (2), respectively; and two ends of the oil cylinder are hingedly connected to the fixed portal frame (5) and the lifting portal frame (6), respectively. The apparatus can adapt to arc roads, uneven roads, and bumpy roads, and can swing left and right or forward and backward, to better profile the ground, thereby removing ice cleanly and greatly reducing shock in a cab. The apparatus is a multi-roller and multi-shaft combined de-icing apparatus that has both functions of ensuring physical and psychological health of a driver and de-icing compacted snow.\nC: Disclosed is a deck carrier used in polar region, comprising a main hull (1), and a bow (2) and a stern (3) located at two ends of the main hull (1); the angle between a flare (4) of the bow (2) and the horizontal plane is a, wherein a = 13-25º. The angle between the flare (4) of the bow (2) and the horizontal plane is designed to be 13-25º, and thus when the deck carrier is sailing in polar region, the flare (4) of the bow (2) can continuously crush and break the ices, and the resistance encountered in icebreaking is reduced, enabling rapid icebreaking in the large-load navigation process without the need of an icebreaker performing icebreaking forwardly.\nD: An electric tool, comprising: a striking shaft (11) comprising a striking end (1111) capable of reciprocating in a first axis (200) and capable of striking a nail (100) during movement, a striking surface (1123) contacting the nail (100) being formed on the striking end (1111); an impact mechanism (10) for impacting the striking shaft (11) to reciprocate; a motor (21) for driving the impact mechanism (10); and a housing (50) for supporting the striking shaft (11), the impact mechanism (10) and the motor (21); the impact mechanism (10) comprises an impact block (12) on which an impact surface (1122) for contacting the striking shaft (11) so as to output an impact force to the striking shaft (11) is formed, and a support shaft (70) for supporting the impact block (12); a force receiving surface for contacting the impact surface (1122) to receive an impact force outputted by the impact block (12) is formed on the striking shaft (11); and when the impact surface (1122) contacts the force receiving surface to perform impacting, the ratio of the area of the surface of the force receiving surface that contacts the impact surface (1122) to the area of the striking surface (1123) is equal to or greater than 0.5 and equal to or less than 20.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA blower (100), comprising: a motor (110); a fan (120), being driven by the motor (110) to rotate about a central axis (101); a battery pack (130), for supplying power to the motor (110); an air duct assembly (140), forming an air inlet (141) for air intake and an air outlet (142) for air outlet; and further comprising: a first handle (150), forming a first holding portion (151) for holding; and a second handle (160), forming a second holding portion (161) for holding. At least part of projection of the battery pack (130), in the radial direction of the central axis (101), on a plane (102) passing through the central axis (101) is located between the first handle (150) and the second handle (160). The blower (100) facilitates reducing the burden when a user uses the blower (100).\nA: A food processor, comprising a main machine (100) and a blending cup assembly (200). The blending cup assembly (200) comprises a cup body (210), a blade assembly (220), and a magnetic conductive disc (230). A coil disc (110), a blending motor (120), and a circuit board (130) are provided in the main machine (100). The main machine (100) comprises a housing body (140) that comprises a housing (141) and a support (142). A first air duct (151) and a first fan (161) located in the first air duct (151) are provided in the housing (141), a first air inlet (171) and a first air outlet (181) communicated with the first air duct (151) are formed on the surface of the housing (141), and the blending motor (120) is located in the first air duct (151). A second air duct (152) and a second fan (162) located in the second air duct (152) are provided in the housing (141), a second air inlet (172) and a second air outlet (182) communicated with the second air duct (152) are formed on the surface of the housing (141), and the circuit board (130) is located in the second air duct (152). A third air duct (153) and a third fan (163) are provided in the support (142), a third air inlet (173) and a third air outlet (183) communicated with the third air duct (153) are formed on the surface of the support (142), and the coil disc (110) is located in the third air duct (153). The first air duct (151), the second air duct (152), and the third air duct (153) are isolated from each other. The food processor improves the heat dissipation efficiency.\nB: A micro water pump, comprising: a housing (100) having an accommodating chamber (101), an impeller assembly (200) rotatably fixed in the accommodating chamber (101), a winding assembly (300) used for driving the impeller assembly (200) to rotate, and a flexible circuit board (400) electrically connected to the winding assembly (300). The housing (100) comprises a base (110) and an upper cover (120) covering the base (110); the side of the base (110) facing the upper cover (120) is recessed to form a recess (111); the bottom wall of the recess (111) protrudes toward the upper cover (120) to form an enclosing table (130); the base (110), the enclosing table (130), and the upper cover (120) together enclose the accommodating chamber (101); the enclosing table (130) comprises a top wall (131) and an enclosing wall (132) which is arranged spaced apart from the side wall of the recess (111); a stepped shaft (140) arranged spaced apart from the enclosing wall (132) is protrudingly provided on the top wall (131) in the direction away from the upper cover (120); the enclosing wall (132), the top wall (131), and the stepped shaft (140) together enclose a mounting chamber (133) which is used for fixing the winding assembly (300) and sealingly isolated from the accommodating chamber (101); the stepped shaft (140) comprises a first shaft portion (141) fixed on the top wall (131) and a second shaft portion (142) fixed on the first shaft portion (141); and the outer diameter of the first shaft portion (141) is larger than that of the second shaft portion (142), and the central axis of the first shaft portion (141) is the same as that of the second shaft portion (142).\nC: An air blower comprising: a housing (200), where an air inlet (203) is provided on the housing (200) and air is introduced via the air inlet (203); a motor (300) arranged within the housing (200); an axial flow fan driven by the motor (300) to rotate around a fan axis and to produce an airflow; an air blowing pipe (422) connected to the housing (200) and provided with an air outlet (601), where the airflow is blown out from the air outlet (601); and a duct (400) used for guiding the airflow to move towards the air outlet (601). An airflow channel (602) is provided within the housing (200) and the air blowing pipe (422). The airflow channel (602) comprises an upstream area(201) between the air inlet (203) and the axial flow fan and a downstream area (202) between the axial flow fan and the air outlet. The motor (300) is provided in the upstream area (201). The duct (400) is provided in the downstream area (202).\nD: Disclosed is a power tool (100), comprising: a casing (11), a motor (12), an output shaft (131), a working head (13), a transmission assembly, an auxiliary handle (20), and a damping assembly (25), wherein the casing is provided with a main handle (111) for a user to grip; the motor is arranged in the housing, and the motor is further provided with a driving shaft (121); the working head is provided with the output shaft (131) and an abrasive disc (132) connected to the output shaft, and the output shaft is driven by the motor; the front end of the auxiliary handle is mounted on the casing and near the working head, and the auxiliary handle comprises a grip portion (21) extending along a center line (103) thereof; the damping assembly comprises a mass member (251) and an elastic element (252), wherein the auxiliary handle further comprises an end cap (23) arranged at the rear end of the grip portion (212), with the rear end being further away from the casing with respect to the front end; an accommodating chamber (24) for accommodating the damping assembly is enclosed by the end cap and the grip portion when same are integrated; the elastic element (252) is arranged between the mass member (251) and the chamber wall of the accommodating chamber; and the ratio of the inherent frequency W1 of the damping assembly to the rotational frequency W2 of the output shaft during rotating is greater than or equal to 0.7 and less than or equal to 1.3. The power tool has a good damping effect.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA miniature pleuston clearing and collecting device. A filter plate (20) is cylindrical; a filter cloth (21) for filtering river water is arranged on the periphery of the filter plate (20); a central water collecting barrel (22) is arranged at the center of the filter plate (20); the central water collecting barrel (22) is rotatably connected to a collecting bucket (10) by means of a rotating shaft; an axial flow pump (30) is in communication with the central water collecting barrel (22); a collecting chamber (40) is supported above the collecting bucket (10); the upper portion of the filter plate (20) extends into the collecting chamber (40); the side of the filter plate (20) rotating into the collecting chamber (40) is not connected to a bottom plate (41) of the collecting chamber (40), and an agent storage chamber (42) is arranged at a position on said side in the collecting chamber (40); two sides of the agent storage chamber (42) are externally connected to agent adding pipes (47); the side of the filter plate (20) rotating out of the collecting chamber (40) abuts against the bottom plate (41) of the collecting chamber (40), and a sewage collecting chamber (43) is located at a position on said side in the collecting chamber (40). By adding an agent around the device and pumping surrounding water bodies at the same time, the collecting bucket (10) is miniaturized and algae is cleared; by means of the filter plate (20) and the collecting chamber (40), algae subjected to flocculation is directly collected.\nA: Disclosed are a device for clearing an object floating on water and a clearing method therefor. The device comprises a ship body, wherein a cavity is provided in a tail end of the ship body; a collecting tank is fixed to an inner wall of the bottom of the cavity by means of a supporting frame; a channel is fixed to top ends of two sides of the collecting tank that are away from each other; an end of the channel away from the collecting tank extends to an outer side of the ship body and is fixedly provided with a debris inlet; a water suction pump is fixed to an outer wall of the collecting tank close to the channel; an electric motor is fixed to an inner wall of the side of the cavity that is close to the head of the ship body; a power output shaft of the electric motor is hinged to a torsion rod by means of a rotary disk; a sliding groove is fixed to an inner wall of the bottom of the cavity by means of a mounting frame; an inner wall of the bottom of the sliding groove is attached to an outer wall of the torsion rod; a clearing groove is further provided between the sliding groove and the collecting tank; and a push plate is arranged at an end of the torsion rod that is located inside the collecting tank. By means of the cooperative use of the various devices above, objects floating on water can be cleared more thoroughly, the debris clearing efficiency can be significantly improved, and the effect of effectively treating the problem of water pollution in a short time can be achieved.\nB: An automatic pet waterer comprises a water reservoir (10), a water bowl (20) provided at an opening of the water reservoir (10), and a light-up water pump (30) fixedly provided in the water reservoir (10). The water bowl (20) is provided with a water spraying nozzle (21) connected to a water outlet of the light-up water pump (30) by means of a water pipe. A water-filtering device (40) is provided under the water bowl (20) and positioned inside the water reservoir (10). The water-filtering device (40) comprises a filter holder (41) and a filter unit (42) received in the filter holder (41). A nylon screen (43) is provided between the filter holder (41) and the filter unit (42). The water bowl (20) has multiple water recycling ports (22) arranged within a region covered by the water-filtering device (40). A housing of the water reservoir is provided with a transparent strip-shaped member (11) perpendicular to a horizontal plane. A user can see the level of water inside the water reservoir by means of the transparent strip-shaped member (11). The waterer has a simple structure, thereby reducing processing costs. Moreover, the waterer has multiple functions which meet practical requirements of users, and provides pets with good quality of drinking water.\nC: Disclosed are an automatic high-pressure filter press, and a filter pressing, residue discharging and back washing method therefor. The automatic high-pressure filter press comprises: a filter press cylinder (1), filter press plates (2, 3, 4, 5), a first hydraulic cylinder (9), a first connecting pipe (6), a residue-scraping device, an automatic residue-discharging device, a filtered water drainage device, a back washing device, a material inlet pipe (31) and a machine frame (21), wherein an active filter press plate (5), a movable passive filter press plate (4), a fixed passive filter press plate (3) and an end cover filter press plate (2) are provided inside the filter press cylinder (1); the residue-scraping device is arranged above a position between the end cover filter press plate (2) and a fourth hydraulic cylinder (32); and an automatic residue-discharging bucket (40), a water collection tank (42), and a belt conveyor (23), which is located outside the machine frame, are arranged below the position between the end cover filter press plate and the fourth hydraulic cylinder. During operation, an external slurry pump feeds a slurry to positions between the filter press plates (2, 3, 4, 5) inside the filter press cylinder (1) via the material inlet pipe (31); the first hydraulic cylinder (9) pushes the active filter press plate (5) to press the slurry inside the filter press cylinder (1) into filter residue cakes, and the filter residue cakes are discharged to the outside of the machine by means of the automatic residue-discharging device; by means of the configuration of water collection cavities (47, 54, 66, 73) being in communication with the first connecting pipe (6), filtered water from the filter press plates (2, 3, 4, 5) is collected and drained into the first connecting pipe (6), and is then drained to the outside of the machine; and for back washing, back washing water is introduced, enters the water collection cavities (47, 54, 66, 73) by means of the configuration of the first connecting pipe (6) being in communication with the water collection cavities (47, 54, 66, 73), and then performs back washing for filter screens.\nD: Disclosed is a double-sealing type apparatus for collecting spray-freezing ice ball particles, comprising a collector (10), a collection trolley (20), an evacuating device (30), a heating device (40), a first sealing pad (50) and a second sealing pad (60). The collector (10) is located on the collecting trolley (20), and the collector (10) is provided with a collection opening corresponding to a discharge port at the bottom of a freezing tower (200). The collection opening is further provided with a water inlet (13), the water inlet (13) being in communication with a space formed when the collection opening is aligned with the discharge port, and when water is injected into the water inlet (13), an ice seal being formed between the collection opening and the discharge port. The evacuating device (30) communicates with an inner space of the collector (10), the heating device (40) and the first sealing pad (50) are located at the collection opening, the first sealing pad (50) forms a seal between the collection opening and the discharge port when the collection opening is aligned with the discharge port, and the second sealing pad (60) is located at the bottom of the collector (10). Further disclosed is a collecting method using the apparatus. The apparatus has a good sealing performance, and can achieve the smooth transfer of ice balls in the freezing tower.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA subsidence-area-based semi-underground pumped storage power station, comprising: a high-level water storage area and a low-level water storage area (20), a water delivery channel (15), and a two-way generator set. The water delivery channel (15) is communicated between the high-level water storage area and the low-level water storage area (20). The two-way generator set is provided between the high-level water storage area and the low-level water storage area (20). The two-way generator set is utilized for pumped storage or power generation by means of the water delivery channel (15). The high-level water storage area is a ground subsidence area (18) of an abandoned mine. The low-level water storage area (20) is an underground water storage area. The underground water storage area is located in an underground space of the abandoned mine. Also comprised is a forming method for the subsidence-area-based semi-underground pumped storage power station.\nA: Disclosed is a heat-radiating internal-circulation power generation device, comprising a solar energy tube (5), three high-positioned expansion reservoirs (6-1, 6-2, 6-3), a low-positioned oil storage reservoir (25), three circulation pumps (8-1, 8-2, 8-3), an energy storage tank (7), a constant temperature furnace (12), a condensed water expansion tank (10), a high pressure plunger pump (13), a high pressure atomizing device (14), a steam generator (15), a steam storage tank (18), a steam turbine (19), a power generator (20), a circulating steam duct (21), a steam condenser (22) and a condensed water pipe (23). In the energy storage tank (7), a saline solution is used as an energy storage medium. Complementary heating of heat conductive oil with other multiple energy sources and solar energy is achieved by the constant temperature furnace (12). The steam generator (15) has layers of annular sealing ducts and the heat conductive oil circulated within the system conducts heat to the steam generator (15), such that an atomized moisture flow is instantly converted into high temperature and high pressure steam to arrive at a critical effect. The present device has the advantages of a long service life and easy maintenance, and is applicable in the fields of large-, middle- and small-scale power generation.\nB: A water supplement device for a toilet bowl rim and toilet (20) having the same. Water draining of the water supplement device is independent of that of a toilet tank (30). The water supplement device comprises a water storage container (10), a water inlet (11) provided at the top of the water storage container (10), and a water draining opening provided on a bottom surface thereof, wherein the water draining opening is connected to a toilet bowl rim water passage. A flapper (40) for opening/closing the water draining opening is mounted in the water storage container (10). A water storage area (12) is provided in the water storage container (10) and comprises a flow guiding channel (13), wherein an end of the flow guiding channel (13) is connected to the water inlet (11), and the other end extends to the water storage area (12), and is located below a maximum water level of the water storage area (12) or level with the maximum water level of the water storage area (12).\nC: A generator system for horizontal use and reutilization of hydroenergy comprises a reservoir disposed upstream of a river, a flow channel disposed on a riverbed in a flowing direction of the river, and multiple hydro turbine generator sets and a motor room (4) installed on the flow channel. The flow channel comprises a load bearing dike (1) and a sluice (2) disposed on the load bearing dike (1). The sluice (2) is provided with a water inlet (21) and a water outlet (22). The water inlet (21) is in communication with the reservoir and provided with a water inlet gate (23). The water outlet (22) is directed toward downstream of the river. The multiple hydro turbine generator sets are disposed at even intervals on the sluice. The generator system utilizes the variation of the height of natural water level and reutilizes the hydroenergy for power generation to obtain constant and stable electric energy.\nD: A pedal-type mopping water bucket and a flat mop that matches same, comprising a bucket body (1) made of a plastic material. A water storage area (1b) and a washing and draining area (1c) that are independent of each other are disposed in the bucket body (1). A communication passage (A) is disposed between the water storage area (1b) and the washing and draining area (1c). A pedal (5) is disposed below the water storage area (1b) and the washing and draining area (1c), and the pedal (5) is connected to a lifting switch (4). When the pedal (5) is not depressed, the lifting switch (4) blocks the communication passage (A) between the water storage area (1b) and the washing and draining area (1c). When the pedal (5) is depressed, the lifting switch (4) leaves the communication passage (A) such that the water level is changed between the water storage area (1b) and the washing and draining area (1c) according to the principle of communicating vessels. A single bucket is internally and separately provided with a water storage area (1b) and a washing and draining area (1c), and when the water level flows therebetween, the cleaning and draining of a mop are integrally completed in a T-shaped port, and the foregoing bucket is convenient to use.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA cascade pumped storage power station, comprising: a high-level water storage area, a middle-level water storage area (19), and a lower-level water storage area (20); water conveying channels (15) being in communication with the high-level water storage area and the middle-level water storage area (19) and in communication with the middle-level water storage area (19) and the lower-level water storage area (20); and two-way generator units provided between the high-level water storage area and the middle-level water storage area (19) and provided between the middle-level water storage area (19) and the lower-level water storage area (20), pumped storage or power generation being performed by utilizing the two-way generator units by means of the water conveying channels (15). According to a forming method of the cascade pumped storage power station, an underground water storage area is constructed by selecting an abandoned mine roadway, and at least the middle-level water storage area and the lower-level water storage area having a height difference are used as underground water storage areas.\nA: A generator system for horizontal use and reutilization of hydroenergy comprises a reservoir disposed upstream of a river, a flow channel disposed on a riverbed in a flowing direction of the river, and multiple hydro turbine generator sets and a motor room (4) installed on the flow channel. The flow channel comprises a load bearing dike (1) and a sluice (2) disposed on the load bearing dike (1). The sluice (2) is provided with a water inlet (21) and a water outlet (22). The water inlet (21) is in communication with the reservoir and provided with a water inlet gate (23). The water outlet (22) is directed toward downstream of the river. The multiple hydro turbine generator sets are disposed at even intervals on the sluice. The generator system utilizes the variation of the height of natural water level and reutilizes the hydroenergy for power generation to obtain constant and stable electric energy.\nB: A pedal-type mopping water bucket and a flat mop that matches same, comprising a bucket body (1) made of a plastic material. A water storage area (1b) and a washing and draining area (1c) that are independent of each other are disposed in the bucket body (1). A communication passage (A) is disposed between the water storage area (1b) and the washing and draining area (1c). A pedal (5) is disposed below the water storage area (1b) and the washing and draining area (1c), and the pedal (5) is connected to a lifting switch (4). When the pedal (5) is not depressed, the lifting switch (4) blocks the communication passage (A) between the water storage area (1b) and the washing and draining area (1c). When the pedal (5) is depressed, the lifting switch (4) leaves the communication passage (A) such that the water level is changed between the water storage area (1b) and the washing and draining area (1c) according to the principle of communicating vessels. A single bucket is internally and separately provided with a water storage area (1b) and a washing and draining area (1c), and when the water level flows therebetween, the cleaning and draining of a mop are integrally completed in a T-shaped port, and the foregoing bucket is convenient to use.\nC: A water supplement device for a toilet bowl rim and toilet (20) having the same. Water draining of the water supplement device is independent of that of a toilet tank (30). The water supplement device comprises a water storage container (10), a water inlet (11) provided at the top of the water storage container (10), and a water draining opening provided on a bottom surface thereof, wherein the water draining opening is connected to a toilet bowl rim water passage. A flapper (40) for opening/closing the water draining opening is mounted in the water storage container (10). A water storage area (12) is provided in the water storage container (10) and comprises a flow guiding channel (13), wherein an end of the flow guiding channel (13) is connected to the water inlet (11), and the other end extends to the water storage area (12), and is located below a maximum water level of the water storage area (12) or level with the maximum water level of the water storage area (12).\nD: A water dispensing device, a water dispensing system, a control method for a water dispensing device, and a storage medium. The water dispensing device comprises: a body (102), wherein a water receiving area (104) is provided on the body (102); a water storage apparatus, which is provided on the body (102); a detection apparatus (106) provided on the body (102), wherein the detection apparatus (106) can transmit and receive a frequency-modulated continuous wave; a storage apparatus, wherein the storage apparatus stores a computer program; and a control apparatus, wherein when executing the computer program, the control apparatus realizes: controlling the detection apparatus (106) to transmit a frequency-modulated continuous wave to the water receiving area (104) (step 202); controlling the detection apparatus (106) to receive a first reflected wave which is formed after the frequency-modulated continuous wave is reflected by a water receiving container (108) (step 204); and according to the frequency-modulated continuous wave and the first reflected wave, controlling the water storage apparatus to output water (step 206). By means of the water dispensing device, non-contact automatic water output control of the water dispensing device can be realized, the control accuracy is improved, and control is realized in a more reliable manner.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an informatization technology pile pouring structure and a pile structure, the pile pouring structure comprising a reinforcement cage, a position-limiting ring that is mounted at the exterior of the reinforcement cage, a plurality of PVC pipes that are provided inside of the reinforcement cage, a cut-off layer that is provided on the position-limiting ring, and a two-dimensional code display board that is provided in one-to-one correspondence with the reinforcement cage. The cut-off layer is annular. A two-dimensional code, which is scanned to then enter an information input interface, is provided on the two-dimensional code display board. The beneficial effects of the present invention are: the present solution, by means of scanning a two-dimensional code to input strength information of a pile body, achieves informatization management for a pile construction process, which helps to improve the operation efficiency; the cut-off layer is used as the boundary surface between the pile body and a pile head, thereby rapidly positioning a part requiring removal; and by removing the pile head at the upper part of the cut-off layer, the cut-off layer can protect the structure at the lower part, thus reducing the damage to the part below the cut-off layer during the removal process.\nA: Disclosed are a vehicle information querying method and system and a storage medium. The method comprises: a vehicle information management system receiving a barcode scanning instruction when a smart user terminal scans a two-dimensional barcode, the two-dimensional barcode comprising identity information of the vehicle; querying, according to two-dimensional barcode information in the barcode scanning instruction of the smart terminal, the system for detailed information of the vehicle; and pushing the obtained detailed information of the vehicle to an application interface of the smart terminal for display. The code scanning operation of the present invention allows a user to quickly search for detailed information of a vehicle, simplifies user operation, and improves the user experience.\nB: Disclosed in the present invention is a grouting valve at the bottom of a cast-in-place pile for geotechnical engineering construction, comprising a main cylinder, a first connection sleeve, a first connection cylinder, secondary cylinders, a second connection sleeve, a second connection cylinder, and adjustment assemblies. The lower part of the first connection cylinder is provided with first discharge holes; the lower part of the second connection cylinder is provided with fifth discharge holes; each adjustment assembly comprises a mounting frame, a first connection shaft, a second connection shaft, first connection rods, second connection rods, third connection rods, first mounts, fourth connection rods, fifth connection rods, sixth connection rods, and second mounts; the second connection rods are disposed on the first mounts; the first mounts are disposed on the secondary cylinders; the fifth connection rods are disposed on the second mounts; the second mounts are disposed on the main cylinder; and the main cylinder and the secondary cylinders are each provided with a driving mechanism for driving two parallelogram mechanisms to rotate so that the main cylinder and the secondary cylinders move toward or away from each other. The present invention can be used for grouting on both inner and outer sides of a steel cage, such that the grouting is more uniform, and the speed is faster.\nC: Disclosed are a POS machine capable of changing the direction of scanning a two-dimensional code and a usage method therefor. The POS machine capable of changing the direction of scanning a two-dimensional code comprises a POS machine body. The POS machine body comprises a front-facing camera provided on an upper portion of a liquid crystal display screen. The front-facing camera is provided with a right-angled triangle prism with an exterior structure, wherein same can enter a two-dimensional code into the camera after two instances of total reflection, such that the front-facing camera can scan the two-dimensional code, which is not required to be placed directly above the camera. The present apparatus has a simple structure and is convenient for the usage habits of a user.\nD: A joint of a concrete-filled steel tube column and an annular steel plate concrete beam, comprising a concrete-filled steel tube column (1), an annular steel plate concrete beam (2), and a reinforced concrete frame beam (3). The annular steel plate concrete beam (2) comprises a steel plate (8) and a steel reinforced cage; concrete slurry passage holes (12) are formed in the middle of the steel plate (8); the steel plate (8) and the steel reinforced cage are annular, the annular steel plate (8) and the steel reinforced cage is coaxially arranged; the annular steel plate concrete beam (2) is sleeved on the outer side wall of the concrete-filled steel tube column (1); one end of the reinforced concrete frame beam (3) extends into the annular steel plate concrete beam (2); stressed steel bars (11) of the reinforced concrete frame beam (3) are connected to the steel plate (8); the annular steel plate concrete beam (2) is a centrally symmetrical annular or eccentric annular structure. According to the joint, the stressed steel bars (11) of the reinforced concrete frame beam (3) are anchored by the steel plate (8), so that the seismic performance of the connecting joint is ensured. The present invention also relates to a construction method for a joint of a concrete-filled steel tube column and an annular steel plate concrete beam.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA damming machine for stacking sandbags at a dike breach for preventing flood, comprising two driving wheels (1), a driving axle housing (2), a sandbag bucket (3), an operating platform (4), and a cantilever (5); one end of the cantilever (5) is provided on a rotary table base controlled by a host of the operating platform (4), and the other end thereof is hingedly connected to a power arm (6); the power arm (6) comprises a telescopic arm (62) and a hydraulic cylinder (61) provided at one end of the telescopic arm (62); a piston rod of the hydraulic cylinder (61) is connected to the telescopic arm (62); the end of the power arm (6) is provided with a damming mechanism; the damming mechanism comprises a rotary table (63) provided at the other end of the telescopic arm (62) and a blocking base (64) provided on a rotary base of the rotary table (63); a support base (65) is provided on the blocking base (64), and is provided with a sandbag conveying mechanism; the sandbag conveying mechanism comprises a guide base (7) matching the support base (65) and a moving mechanism sliding along a guide slot of the guide base (7); a transmission mechanism is provided above the guide base (7). The damming machine can quickly and efficiently stack a plurality of sandbags continuously at a time without moving the position of a host of the damming machine. The damming machine is simple to operate, convenient to use and high in efficiency.\nA: A vehicle driving direction control device having a power receiving function, comprising a lateral deviation swing arm mechanism, the lateral deviation swing arm mechanism comprising a main transmission arm (1), a telescopic secondary transmission arm (2), a rotating drive mechanism that drives the main transmission arm (1) to deflect horizontally and a lifting drive mechanism that drives the main transmission arm (1) to move vertically; and one end of the telescopic secondary transmission arm (2) is hinged to the main transmission arm (1). The device further comprises a guiding block (3) provided at an end part of the main transmission arm (1), and the guiding block (3) is provided thereon with a guiding clamping groove (4) that slidingly cooperates with a guide rail (5). The device further comprises a positive electrode power receiver (6) and a negative electrode power receiver (7) provided on the guiding block (3). The driving direction of a vehicle is guided by means of the guiding block (3) moving along the guiding rail (5) so that the existing non-rail driving of the vehicle is transformed to a combination of non-rail driving and rail driving, thereby solving the technical problems wherein driving stability is influenced by a deflecting power receiving device provided on a vehicle and wherein a driver must control the driving direction.\nB: Disclosed are a pin plugging/unplugging mechanism and a cylinder head thereof, and a pin-type telescopic arm and a crane with the pin-type telescopic arm. The pin plugging/unplugging mechanism comprises: a telescopic oil cylinder disposed in a telescopic arm (100), an active end of the telescopic oil cylinder being provided with a cylinder head (1); an arm pin (5) slidably disposed on a side wall of an arm tail of the telescopic arm (100); a return mechanism used for keeping the arm pin (5) in an extended and locked state; and a swing bar (3) hinged to a side wall of the telescopic arm (100). A cylinder pin (2) used for being locked with the telescopic arm (100) and an arm pin push rod (7) for pushing the arm pin(5) to unlock are disposed at both sides of the cylinder head (1). A guide mechanism used for guiding the arm pin push rod (7) and the cylinder pin (2) to move is disposed in the cylinder head (1), and the guide mechanism is connected to a driving mechanism. For the pin plugging/unplugging mechanism, an arm pin oil cylinder, a dovetail groove structure, and a poking fork structure on the cylinder head of the oil cylinder are cancelled, so that the structure of the cylinder head of the oil cylinder becomes simpler; a mechanical failure of the cylinder head part is reduced; the guide mechanism drives the cylinder pin and the arm pin push rod to perform interlocking, thereby improving the reliability of an interlocking mechanism; and the manufacturing difficulty and processing cost of the cylinder head of the oil cylinder are reduced.\nC: Disclosed are a pin insertion and extraction mechanism, an inserted pin type telescopic boom and a crane. The pin insertion and extraction mechanism comprises a telescopic oil cylinder provided in a telescopic boom (100), wherein the movable end of the telescopic oil cylinder is provided with a cylinder end (1), and two sides of the cylinder end (1) are provided with a cylinder pin (2) for locking with the telescopic boom (100). The pin insertion and extraction mechanism further comprises: a boom pin (5) slideably provided on a side wall of the telescopic boom (100), and used for locking to another telescopic boom when sliding to extend; a return mechanism (6) for retaining the boom pin (5) in an extended state; and a rocker lever (3) hinged by means of a fixed shaft to a side wall of the telescopic boom (100), one end of the lever being connected to the boom pin (5) and the other end being able to be pushed by the cylinder pin (2). In the pin insertion and extraction mechanism, providing a boom pin, a return mechanism and a rocker lever providing lever action on the two side walls at the tail of the telescopic boom means that when an ejector rod of the cylinder pin is extended, the boom pin is retracted and when the ejector rod of the cylinder pin is retracted, the boom pin is extended, thereby switching between the cylinder pin locked state and the boom pin locked state. The mechanism not only has a simple structure, is convenient to set up and has fewer essential components, but also reduces the machining complexity of components such as the cylinder head, etc. as well as reducing the installation accuracy of components such as the boom pin, etc.\nD: Provided is a device for quickly binding flood prevention sandbags, which comprises a base (1), wherein a sandbag clamp (2) is arranged on the base (1), a binding mechanism (3) is arranged right above the sandbag clamp (2), and the binding mechanism (3), through a suspension arm (4), is connected to a lifting rod (5) arranged on one side of the sandbag clamp (2). The invention can rapidly and effectively bind a plurality of sandbags together, performs simple binding by means of winding, and adds to the overall weight of the dropped sandbags in the form of a sandbag combination, avoiding the scenario where a single sandbag would be washed away thereby not being able to block a breach, saving on rescue time at the scene.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a roof greening and environmental protection self-watering system based on rainwater recycling technology. The system comprises a transverse rod (1), vertical columns (2), flowerpots (4), a watering pipe (6) and a water storage tank (8), wherein the several vertical columns (2) are uniformly arranged at a bottom end of the transverse rod (1), the water storage tank (8) is arranged below the transverse rod (1), and the several flowerpots (4) are uniformly arranged above the transverse rod (1). Several first support rods (3) are uniformly arranged at a bottom end of each flowerpot (4), a separation net (43) is arranged on the bottom of an inner cavity of each flowerpot (4), and the separation net (43) separates the inner cavity of the flowerpot (4) into an upper cavity and a lower cavity. A sand-gravel layer (41) and a soil layer (42) are provided in the upper cavity, and the soil layer (42) is provided in an inner hole of the sand-gravel layer (41). The watering pipe (6) is arranged above the flowerpots (4), several second support rods (5) are uniformly arranged at a bottom end of the watering pipe (6), and several drip nozzles (7) cooperating with the flowerpots are uniformly arranged on the watering pipe (6).\nA: A flower pot, comprising a planting box (1), a water accumulation groove (2) and a water absorbent material (3); the planting box (1) and the water accumulation groove (2) are respectively provided with a convex guide strip (16, 16') inside the left and right sides at the junction therebetween; a plurality of convex strips (17) extend from the front face of the water accumulation groove (2) to the bottom face of the planting box (1); the convex strips (170, 170') on the left and right sides of the bottom face of the planting box play guiding and positioning roles when an upper and a lower flower pots are nested. The planting box (1) is provided with an inverted T-shaped hole (18) on the central end edge of the front face, and a drainage hole (12) between two adjacent convex ribs (13) on the bottom face; the long, flat water accumulation groove (2) is provided with a long groove (20') on the back face acting as a drainage channel thereof; the long groove (20') is internally provided with a hole (200') near the upper end edge acting as the spillway of the water accumulation groove, and a flanged strip (202) on the bottom face extending downward so that the drained water can smoothly flow into the flower pot below; the water absorbent material (3) is disposed between the planting box (1) and the water accumulation groove (2). In this way, the upper and lower flower pots can be simply and quickly nested. Furthermore, a plurality of gaps (4) are formed between the planting box and the water accumulation groove of the flower pot below, thus balancing the pressure and oxygen between the planting box and the water accumulation groove.\nB: A self-cleaning environmentally friendly air purification and dust-removal device, comprising a wall (1), a purifier pipe (2), and a dust exhaust pipe (14); the purifier pipe (2) is embedded in the wall (1); a first protective mesh (3), a dust filter mesh (4), a motor (5), a gas distribution plate (7), a first filter layer (8), a second filter layer (9), an air suction fan (10), and a second protective mesh (12) are sequentially provided from left to right in an inner cavity of the purifier pipe (2); a cleaning brush (13), which cooperates with the dust filter mesh (4), is fixedly connected to a motor shaft of the motor (5); several ventilation holes (71) are uniformly provided on the gas distribution plate (7); an opening at the top of the dust exhaust pipe (14) is provided with a third protective mesh (17); a dust exhaust fan (15) is provided inside the dust exhaust pipe (14). By providing the dust filter mesh (4), the first filter layer (8), and the second filter layer (9), air is filtered and purified in many stages, removing impurities such as dust from air, purifying air, and improving indoor air quality. Dust accumulated on the dust filter mesh is removed when the motor (5) drives the cleaning brush (13) to rotate; moreover, the dust exhaust fan (15) discharges air and discharges dust to outdoor air, preventing dust accumulation from affecting the filter effect of the dust filter mesh (4).\nC: A dust removal device for industrial fumes. The dust removal device comprises a dust removal housing (1), wherein a first filter screen (3) is arranged on the side of the inside of the dust removal housing (1) that is close to an air inlet (2); a support frame (4) is arranged on an outer side of the first filter screen (3); sliding grooves (5) are respectively provided on two sides of the support frame (4), and sliding blocks (6) are arranged inside the sliding grooves (5) in a sliding mode; a cleaning brush (7) is fixedly arranged between outer sides of the two sliding blocks (6), and a pull string (8) is fixedly arranged in the middle of the upper end of the cleaning brush (7); a water output pipe (9) is fixedly arranged at the top end of the interior of the dust removal housing (1), and several spray nozzles (10) are evenly arranged at the bottom end of the water output pipe (9) at intervals; a tapered shield (11) is arranged at the bottom end of the dust removal housing (1) and is located directly below the water output pipe (9); the bottom end of the tapered shield (11) is connected to a liquid discharging pipeline (12); a sealing piston (13) is arranged inside the liquid discharging pipeline (12); and a reset spring (14) is fixedly arranged at the bottom end of the sealing piston (13).\nD: An environment-friendly air purifier for a public place, comprising a body (1). An air exhaust chamber (2), a disinfection chamber (3), an air entrainment chamber (4), and a filter chamber (5) are sequentially provided inside the body (1) from top to bottom. The bottom wall of the filter chamber (5) is connected to an air inlet (6) in a communicating manner. A protective mesh (22) is provided in the air inlet (6). A third filter layer (9), a second filter layer (8), and a first filter layer (7) are sequentially provided in the filter chamber (5) from top to bottom. A fan (11) is provided in the air entrainment chamber (4). Disinfection tubes (14) are provided in the middle of the disinfection chamber (3). Several lamp bases (16) are uniformly provided in the peripheral direction of the inner wall of the disinfection chamber (3), and ultraviolet radiators (17) are provided on the lamp bases (16). Plant filter cartridges (19) are provided in the air exhaust chamber (2), the side wall of the air exhaust chamber (2) is uniformly provided with several air exhaust holes (20), and the protective mesh (22) is provided in the air exhaust holes (20). The bottom end of the body (1) is uniformly provided with several supporting legs (21). Air is filtered layer by layer to ensure the exhausted air clean and environment-friendly.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an aerator, comprising a body (100), a flow divider (200) and an inserter (300). The flow divider (200) and the inserter (300) are mounted and connected in the body (100). An air suction hole (110) runs through the body (100). A water flow forms a jet flow under the action of the flow divider (200). The jet flow collides with the inserter (300) to incur an atomization effect and is mixed with air sucked by the air suction hole (110). The inserter (300) comprises a plurality of bottom layer division plates (310), a plurality of middle layer division plates (320), and a plurality of upper layer studs(330) fixedly connected together. Passages are formed between the adjacent bottom layer division plates (310) and between the adjacent middle layer division plates (320). A collision surface of the upper layer studs (330), a collision surface of the middle layer division plates (320), and a collision surface of the bottom layer division plates (310) form three layers separated in the direction (X). The aerator has the following advantages. The chance of jet flow collision is increased, the chance of multiple jet flow collisions is increased, the effect of water saving is excellent, and the water drops are plump.\nA: Disclosed in the present invention is a bubbler capable of ensuring gas suction effect under low pressure comprises a main body (10), a gas-water mixer (20) and a flow splitter (30) both installed in the main body (10). The flow splitter (30) is provided with a plurality of flow splitting holes (31). A gas suction hole (11) is additionally arranged to suck the air from outside of the main body (10) into the main body (10). The bubbler is also provided with a constant open water line (40) and an open-close water line (50). An open-close member (60) is arranged on the open-close water line (50) in order to open the open-close water line (50) when the water flow pressure is greater than a predetermined water pressure and to close it when the water flow pressure is lower than the predetermined water pressure. All the flow splitting holes (31) are divided into at least a first portion and a second portion. The constant open water line (40) and the open-close water line (50) are independently connected with the first portion and the second portion respectively.\nB: A filter assembly (600) comprises a filter support plate (610) and a filter (620). The filter support plate (610) comprises a bottom frame (611) and a support ring (612). The bottom frame (611) comprises a bottom plate (6111) and a support wall (6112). The support wall (6112) surrounds the periphery of the bottom plate (6111), and extends upwards. The support ring (612) is provided above the bottom frame (611). The support ring (612) is connected to the top portion of the support wall (6112), and extends in a horizontal direction facing away from a filter mounting cavity (6113). A portable water feeder comprising the filter assembly (600) further comprises a water storage cup (100) having an open end (111), a mounting cover (200), an opening and closing mechanism (300), a button mechanism (400), and a water receiving tank (500). The filter assembly (600) covers the open end (111). The mounting cover (200) is detachably mounted at the open end (111) of the water storage cup (100). The opening and closing mechanism (300) comprises a connection column (310) slidably passing through a partition plate (210), a sealing plate (320) fixed at one end of the connection column (310), a slider (330) fixed at the other end of the connection column (310), and a first elastic member (340) sleeved on the connection column (310). The button assembly drives the slider (330) to slide in an axial direction of the mounting cover (200) towards the partition plate. An end of the water receiving tank (500) is fixedly sleeved on the mounting cover (200). A second vent hole (512) and a second water outlet hole (511) are provided in an upper position and a lower position of a side wall of the water receiving tank (500). The second water outlet hole (512) communicates with a first water outlet hole (212). The second vent hole (512) communicates with a first vent hole (213). When the filter assembly operates, water flows into the filter (600) from a filter hole, thereby achieving filtration. The filter assembly (600) has a simple and compact structure.\nC: Disclosed is an electric motor oil pump assembly, comprising: an electric motor assembly (200); an oil pump assembly (100); an inner soundproof cover (400), the inner soundproof cover (400) being sheathed outside the oil pump assembly (100) and defining, together with the oil pump assembly (100), an inner layer soundproof cavity (401) filled with low pressure oil, the inner layer soundproof cavity (401) being in communication with a low pressure cavity (101) of the oil pump assembly (100), and the inner soundproof cover (400) being provided with a soundproof cover cavity (402); a pre-tightening buffer assembly (300), the pre-tightening buffer assembly (300) comprising a piston (310) and an elastic member (320), the piston (310) being in cooperation with the soundproof cover cavity (402) and abutting against an upper end cover (110) of the oil pump assembly (100), and the elastic member (320) being used for providing a pre-tightening force for pressing the upper end cover (110). The soundproof cover cavity (402) is in communication with a high pressure cavity (102) of the oil pump assembly (100), so that the piston (310) presses the upper end cover (110) under the action of oil pressure. By filling the low pressure oil between the inner soundproof cover (400) and the oil pump assembly (100), the electric motor oil pump assembly is light in weight, small in space occupation, and low in manufacturing costs and working noise. Further disclosed is a steering system comprising the electric motor oil pump assembly and a vehicle comprising the steering system.\nD: Disclosed are an electric motor oil pump assembly (1000), a steering system and a vehicle. The electric motor oil pump assembly (1000) comprises: an electric motor assembly (200); an oil pump assembly (100); an inner soundproof cover (400), the inner soundproof cover (400) being sheathed outside the oil pump assembly (100), and defining, together with the oil pump assembly (100), an inner layer soundproof cavity (401) filled with low pressure oil, the inner layer soundproof cavity (401) being in communication with a low-pressure cavity (101) of the oil pump assembly (100), and the inner soundproof cover (400) being provided with a soundproof cover cavity (402); and a pre-tightening buffer assembly (300), the pre-tightening buffer assembly (300) comprising a piston (310) and an elastic member (320), the piston (310) being in cooperation with the soundproof cover cavity (402) and forming as an integral body with an upper end cover (110) of the oil pump assembly (100), and the elastic member (320) being elastically clamped between a top wall of the soundproof cover cavity (402) and the piston (310). The soundproof cover cavity (402) is in communication with a high pressure cavity (102) of the oil pump assembly (100), so that the piston (310) presses the upper end cover (110) under the action of oil pressure.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an intelligent urinal, comprising a urinal (1), a flushing device (2) and a sensor (3), and further comprising a case (4), a cleaning device (5), a drying device (6), a control panel (7) and a main control board (8). The case (4) is installed above the urinal (1). The flushing device (2), the cleaning device (5), the drying device (6) and the main control board (8) are all installed inside the case (4). The control plane (7) is installed outside the case (4). The flushing device (2), the sensor (3), the cleaning device (5), the drying device (6) and the control panel (7) are all connected to the main control board (8). The main control board (8) is connected to a power supply line (9).\nA: Disclosed are a urinal and a urinal flushing control method. The urinal comprises a urinal body, a solenoid valve for starting and stopping flushing, a capacitive sensor for sensing the amount of urine on an outer wall of the urinal body, and a controller for receiving a capacitance value signal to control the turning-on and turning-off of the solenoid valve, wherein the controller sets a flush timing base point when it is determined that a capacitance value shows a downward trend after a first period of time has elapsed since the controller controlled the solenoid valve to be turned off, and same controls the solenoid valve to be turned on after the flush timing base point lasts for a second period of time. The solution can reduce the erroneous flush rate and improve the adaptability to the glaze of a urinal body.\nB: A boiling and cleaning device for quartz processing, comprising a deoiling tank (3), a boiling tank (4), an ultrasonic cleaning tank (5), a moisturizing tank (6) and a drying tank (7) which each comprise an infrared sensor and are arranged in sequence from left to right, a rack (1), an electric push rod (2), a PLC control device and a sliding plate (12); a material basket (21) is suspended at the lower end of the electric push rod (2), an induction switch (14) is provided on the rack (1), the electric push rod (2) is mounted at the bottom of the sliding plate (12), a spray nozzle (8) is mounted in each of the deoiling tank (3), the boiling tank (4) and the moisturising tank (6), and a cleaning liquid supply device (31), a thermostatic heating device (41), an ultrasonic generator (51), a water supply device (61) and a hot air blowing device (71) are respectively mounted at one side of the deoiling tank (3), of the boiling tank (4), of the ultrasonic cleaning tank (5), of the moisturising tank (6) and of the drying tank (7); the thermostatic heating device (41) can perform thermostatic heating on water in the boiling tank (4) to keep the water in a pseudo-boiling state, and the PLC control device controls working states of various devices and electronic components. The boiling and cleaning device for quartz processing has the advantages of automatically completing boiling, cleaning, blowing and drying processes of a quartz product, stable operation, high cleanliness, good control effect, etc.\nC: A hook-type washing machine, comprising a casing (1) and a single chip microcomputer for controlling operations of various devices and components, a washing chamber and a drying chamber being provided in an inner chamber of the casing (1) in sequence from bottom to top; a travelling mechanism (2) is provided on the side wall of the washing chamber, the travelling mechanism (2) being provided with a scrubbing device (9); and drying devices (6) are uniformly provided on the chamber wall of the drying chamber at intervals, a lifting device (5) is provided on the top portion of the drying chamber, the end of a rope of the lifting device (5) being connected to a hanging member (3). The hook-type washing machine is easy to operate and has low manufacturing cost; by means of the cooperation between the lifting hanging member (3) and the washing device, the laundry can be washed in a tidy and thorough manner, so that the laundry is not twisted together during washing, effectively reducing the wear rate of the laundry, facilitating for people to easily remove the laundry; in addition, since a double-layer structure is used, the laundry in the washing chamber can be lifted into the drying chamber for drying, and the dried laundry can be directly stored, having the advantages of being easy to use and a good washing effect, etc.\nD: A fully-automatic bionic digestive system for monogastric animals, comprising a housing (2), a constant-temperature air bath shaker (6), a bionic digestion device (4), an automatic enzyme supplementation device, a buffer circulating device, a cleaning device and a control circuit (5); an upper left part of the housing (2) is provided with a digestion reaction chamber (3), and the constant-temperature air bath shaker (6) is arranged within the digestion reaction chamber (3); the automatic enzyme supplementation device is fixedly mounted within the housing (2) and is connected with the bionic digestion device (4) by means of an infusion tube (58); the buffer circulating device and the cleaning device are arranged below the housing (2) and are respectively connected with the bionic digestion device (4) by means of the infusion tube (58); the control circuit (5) is arranged within the housing (2) and connected to the constant-temperature air bath shaker (6), the automatic enzyme supplementation device, the buffer circulating device and the cleaning device by means of conducting wires; the control circuit (5) is connected with an industrial control computer which is mounted in the housing (2), and the industrial control computer is connected with a display (1) installed above the housing (2) and to the right; and the bionic digestion device (4) is mounted vertically above the constant-temperature air bath shaker (6). The fully-automatic bionic digestive system for monogastric animals has a simple structure, is easy to use, and can prevent leakage of bionic digestion reaction solution. The digestion simulation carried out thereby features high accuracy, good reproducibility, and minimal errors.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are a high-altitude greening lifting device and system, which relate to the technical field of vertical greening. The high-altitude greening lifting device comprises a flexible hoisting belt, fixing assemblies, an anti-deviation rope, and flowerpots, wherein the flexible hoisting belt clamps several flowerpots in a lengthwise direction through the fixing assemblies respectively; the anti-deviation rope is successively connected, in the lengthwise direction of the flexible hoisting belt, to the several fixing assemblies; and the fixing assemblies are detachable. Through the high-altitude greening lifting device provided in the present invention, installation of a large-area support is avoided by means of the design combining the flexible hoisting belt and the flowerpots; the design of the anti-deviation rope avoids safety accidents caused by drifting of the flowerpots with wind during a lifting process, and improves the typhoon resistance capability; and the fixing assemblies are detachable, which facilitates spacing adjustment of the flowerpots according to user requirements or seasonal changes, thus meeting usage requirements of users. A high-altitude greening lifting system which uses the high-altitude greening lifting device is additionally provided in the present invention, and the stability of the entire system is improved by means of installing an upper support and a lower support.\nA: A logistics lifting/lowering device and an operation method therefor. The logistics lifting/lowering device comprises a base plate (1); the bottom of the base plate (1) is uniformly provided with a plurality of shock-absorbing plates (4); omnidirectional wheels (5) are mounted on the shock-absorbing plates (4); one side of the top end of the base plate (1) is uniformly provided with a plurality of support rods (2); the top ends of all the support rods (2) are jointly fixedly connected to a top frame (3); a feeding mechanism (6) is mounted on the top frame (3); a mobile base (7) is mounted on the feeding mechanism (6); the bottom end of the mobile base (7) is fixedly connected to a lifting/lowering frame (8); a winch (10) is fixedly mounted on the bottom wall of an inner cavity of the lifting/lowering frame (8); a rotating shaft (11) is rotatably connected to the winch (10); an overhanging end of the rotating shaft (11) is fixedly connected to a wire roller (12); a rope (13) is wound around the wire roller (12); and a plurality of connection wires (14) are fixedly connected to a moving end of the rope (13). The whole hoisting or discharging process is automatically completed, such that the working intensity can be greatly reduced, quick operation can be conveniently realized, and the management efficiency can be improved; and because hoisting or discharging is completed by using a machine, the operation safety can be greatly improved, and the personal safety of a worker can be guaranteed.\nB: Disclosed is a lifting device for aerial operations, comprising a vehicle body (5), a lower bracket (7) installed on a bottom part of a safety ladder (14), a host drive (9) fixed on the lower bracket (7) for providing lifting power, an upper bracket (1) installed on a top part of the safety ladder (14), a hauling cable (4) for connecting the upper bracket (1), the vehicle body (5) and the host drive (9), and a sliding rail (2) installed on the safety ladder (14); and further comprising an anti-dropping device (3) installed on the sliding rail (2), a guiding device assembly (12) installed on a rear part of the vehicle body (5), a stalling protection device (11) installed on the guide rail (2) and fitted with the vehicle body (5), a foldable pedal (6) installed on the lower part of the vehicle body (5) for loading people and commodities, an operation handle (13) fixed on the upper part of the vehicle body (5) and a limiting bracket (16) installed on an upper part of the safety ladder (14); wherein the vehicle body (5) is driven by the host drive (9) via the hauling cable (4) to move up and down along the guide rail (2), so as to realize the purpose of transferring people and commodities by moving the vehicle body up and down, and during installation, there is no need to change the original structure of the safety ladder.\nC: The present invention relates to the field of engineering equipment, such as a marine wind power installation ship and a marine oil drilling platform, and in particular, to a lifting device for a marine platform and a marine platform. The lifting device comprises: a first beam body; a second beam body fixedly connected to the marine platform; a lifting drive member, the first beam body being connected to the second beam body by means of the lifting drive member; snap-fitting racks fixedly connected to pile legs; two snap-fitting devices, one of which is connected to the first beam body, and the other of which is connected to the second beam body, each snap-fitting device comprising a clamping block adapted to the snap-fitting rack, and the clamping block and the snap-fitting rack can be snap-fitted or separated. The marine platform comprises the described lifting device for a marine platform. The snap-fitting racks of the lifting device for a marine platform provided in the present invention are easily aligned and fitted with the snap-fitting devices, so that a hydraulic station and a hydraulic cylinder can be prevented from being in an operating state for a long time, thereby improving safety. The present invention also has a good effect in use in an environment with an uneven seabed.\nD: A multifunctional flowerpot rack for an ecological garden, relating to the technical field of landscaping, and mainly resolving the problems, of a common flowerpot rack on the current market, of having a plain shape and a single function, and being able to hold only one flowerpot generally. A lampshade (1) is provided at the top end and is of a trapezoidal hollow structure; a bulb (2) is mounted on the surface of the hollow of the lampshade (1); a water outlet pipe (3) is of a crown structure; small flowerpots (4) are provided close to the top end of the flowerpot rack; large flowerpots (5) are mounted below the small flowerpots (4); the bottom end of the water outlet pipe (3) is connected to a water pump (6); the water pump (6) is communicated with a water pump pipe (8); a vine pot (7) is provided at the lowest end of the flowerpot rack. The flowerpot rack is suitable for the growth of various potted and vine plants, light emitted by the bulb (2) is reflected by the surface of the hollow of the lampshade (1) and thus is evenly scattered during usage, the light of the bulb is soft, heat emitted by the bulb may meet the needs of plants for temperature, the environment is beautified, and the flowerpot rack is also suitable for use as a garden lamp and saves planting space.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA CFRP suspension strip intersecting cable support structure, suitable for the field of large-span spatial structures, and comprising a flat circular outer ring (1), CFRP suspension strips (2) being anchored on the circular outer ring (1) with wave-shaped anchors, the CFRP suspension strips (2) being interlaced to form a flat cable net, the cable net being arranged in the shape of a sunflower, in the shape of a square or in an irregular shape according to requirements, gravity rigidity blocks (3) being arranged at intersection nodes for clamping. The structure is not provided with an inner ring, the cable force is evenly distributed among the CFRP suspension strips (2), and the breaking of one CFRP suspension strip (2) would not cause the overall collapse of the structure. The structure has strong continuous collapse resistance and good robustness. The structure uses the single-layer flat cable net, the gravity rigidity blocks (3) at the various nodes are used to resist wind suction forces, and the overall structure is lightweight and aesthetically pleasing. Traditional rigid cables are replaced with the CFRP suspension strips (2), so as to reduce the amount of cable, decrease the total cost of the structure, and achieve a good economic effect.\nA: A highly safe large floating structure, comprising an upper structure (1), intermediate connection structures (2), and lower floating body structures (3). The lower floating body structures (3) comprise multiple distributed floating bodies (31), and have an ultra-large waterline area as a whole. Some outer floating bodies (31) in the lower floating body structures (3) are solid-like floating bodies. The intermediate connection structures (2) are spatially distributed, and comprise connection structures intersecting the horizontal plane and/or being parallel to the horizontal plane. The connection structures intersecting the horizontal plane provide safe restoring forces. The lower floating body structures (3) are connected to the upper structure (1) by means of the intermediate connection structures (2). The large floating structure as a whole is ultra-flat. The floating structure has a multi-redundancy mechanism in structural integrity, anti-sinking, and anti-overturning capability, and has high universality and an ability to sail away from storms. When the most unfavorable sea conditions that can be foreseen appear or when the most unfavorable recorded accidents including collisions, hitting the rocks, stranding, and abnormal displacement of goods occur, it can be ensured that the overall structure of the floating structure does not disintegrate and the floating structure does not capsize and sink. Thus, the safety of persons on the floating structure can be ensured while ensuring the safety of the overall structure of the floating structure.\nB: The present invention relates to the technical field of buildings, and in particular, to a cable net assembly, a building and a building construction method. The cable net assembly comprises a ring cable structure, a first connector, and a plurality of radial cables. The radial cables are connected to the ring cable structure and the first connector, respectively. The radial cables are arranged in the circumferential direction of the ring cable structure. The radial cables comprise at least two inner radial cables and outer radial cables. All the inner radial cables intersect with the end connected to the first connector. All the outer radial cables intersect with the end connected to the first connector. The ends of the inner radial cables away from the first connector are connected to the ring cable structure. Therefore, two ends of the first connector are connected to the inner radial cables and the outer radial cables respectively, connection of the inner radial cables and the outer radial cables is achieved, and the inner radial cables and the outer radial cables can be stressed integrally. All the outer radial cables and the inner radial cables intersect with the first connector, such that the inner radial cables and the outer radial cables form a fish-bellied type intersecting structure, and the overall stability of the cable net assembly is improved.\nC: A CFRP material-based electrically-promoted heterogeneous catalysis and recovery apparatus and control method therefor. The apparatus comprises an external power supply (100), an electrolytic cell (300) containing an electrolyte (200), and a CFRP sample (400) and a metal sheet (500) each having one end inserted into the electrolyte (200). The electrolyte (200) comprises chloride ions and phosphotungstic acid. The other end of the CFRP sample (400) is connected to the positive electrode of the external power supply (100), and the other end of the metal sheet (500) is connected to the negative electrode of the external power supply (100). The heterogeneous catalysis and recovery apparatus features a simple structure and low costs, and is able to recover carbon fibers with good performance from a CFRP material in a short period of time by optimizing current parameters and the concentration of a catalyst.\nD: A basic module of a very large floating structure, consisting of lower floating body structures (3), an upper structure (1), and intermediate connection structures (2). The lower floating body structures (3) comprise multiple distributed floating bodies (31), and have an ultra-large waterline area as a whole. The sum of the displacement volumes of the floating bodies is greater than the equal volume of water of the full weight of the floating structure. The upper structure (1) is of a frame structure or a box structure. The intermediate connection structures (2) are spatially distributed. The lower floating body structures (3) are connected to the upper structure (1) by means of the intermediate connection structures (2) to form a statically indeterminate combined space structure. The basic module as a whole is ultra-flat. Two basic modules can be combined once to form a very large floating structure at the kilometer level. The basic module has a strong resistance to wave-excitation loads and load changes, and a strong anti-sway stiffness. Relative movement of basic modules during combination and connector loads after combination can be greatly reduced.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nNoise-reduction bricks having a bell mouth, each brick comprising a brick body (1). One bottom surface of the brick body (1) is concave inward to form a bell shape; the thin end of a bell mouth (2) is connected to a sound absorption cavity (3); sound absorption cotton (4) is placed in the sound absorption cavity (3); and a reflection cover (5) is arranged at the bell mouth (2). Each brick is an independent noise-reduction unit, and the bricks are combined by means of bricklaying to build sound-absorbing wall surfaces or sound-absorbing buildings. The noise-reduction bricks having a bell mouth have a simple structure and good sound absorption and noise reduction effects.\nA: Provided is a sound absorption plate with a unit structure. The sound absorption plate comprises an ultramicropore sound absorption panel (1), a side plate (2) and a sound absorption back plate (3). The edge parts of the ultramicropore sound absorption panel (1) are connected with the sound absorption back plate (3) through the side plate (2) and thus form a sound absorption resonant cavity (4). The material of the ultramicropore sound absorption panel (1) is a metal material carrying nano microspheres (5). A sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption panel, is arranged inside the sound absorption resonant cavity (4). A pore size of the nano microspheres in the ultramicropore sound absorption panel (1) and the sound absorption metal thin film (6) is 100-1000 nm. The sound absorption plate has a simple structure, simple and convenient manufacture and assembly, a wide sound absorption band and a good noise reduction effect, and is suitable for ceiling and wall decorations of buildings.\nB: Dust pretreatment equipment for grab ship unloading in a port, comprising a hopper (1). A feed pipe (2) is fixedly connected to the bottom of the hopper (1); a sliding groove (3) is fixedly connected to one side of the hopper (1); a slider (4) is slidably connected in the sliding groove (3); a bell mouth (5) is mounted at the top of the slider (4); an air inlet pipe (6) is fixedly connected to the bell mouth (5); a fan (7) is fixedly connected to one end of the air inlet pipe (6); the fan (7) is fixedly mounted at one side of the hopper (1); an air outlet pipe (8) is fixedly connected to one side of the fan (7); a dust collection box (9) is fixedly connected to one end of the air outlet pipe (8). In the equipment, a gear (11) works in conjunction with a rack (10), such that the slider (4) and the bell mouth (5) can be pushed to slide back and forth, and the dust floating on the hopper (1) can be absorbed by means of the bell mouth (5); the equipment is convenient and effective.\nC: A vacuum pump having a good noise reduction effect, comprising a casing body (1). A sound insulation plate (2) is fixedly connected to an inner wall of the casing body (1); a sound absorbing cover (3) is provided penetrating through the right side of the casing body (1); springs (4) are fixedly connected to two sides of the bottom of the inner cavity of the sound insulation plate (2); tops of the springs (4) are fixedly connected to a movable plate (5); a connecting plate (6) is provided on the top of the movable plate (5); a pump body (7) is fixedly connected to the top of the connecting plate (6); an oil cavity (8) is fixedly connected to the bottom of the inner cavity of the sound insulation plate (2); by means of the cooperation of the casing body (1), the sound insulation plate (2), the sound absorbing cover (3), the springs (4), the movable plate (5), the connecting plate (6), the pump body (7), the oil cavity (8), a piston rod (9), a connecting rod (10) and a connecting block (11), the vacuum pump achieves the purpose of a good noise reduction effect, is capable of effectively carrying out noise reduction on noise generated by the vacuum pump, avoids troubles to users, improves the experience of the users to the vacuum pump, satisfies demands of the market today, improves the practicability and usability of the vacuum pump, and solves the problem of a poor noise reduction effect of conventional vacuum pumps.\nD: A device capable of bringing stimulation by means of blow and suction comprises an enclosed hood (1). A hood boy opening used for being in contact with a human body is formed in the bottom end of the enclosed hood (1). A control circuit board (2) is disposed in the enclosed hood (1). A vibration horn (3) is electrically connected to the control circuit board (2). The mouth of the vibration horn (3) is open to the hood boy, and an air blowing channel (4) is formed between the mouth and the hood boy. The control circuit board (2) can be connected to a power supply to connect a sound source circuit to drive the vibration horn (3) to vibrate and to form an air flow in the air blowing channel (4). By using the device capable of bringing stimulation by means of blow and suction, when the vibration horn (3) vibrates, a volume-variable cavity is formed, so that the human body in the enclosed hood (1) is in an environment in which a negative pressure and a positive pressure fast alternates, and an erogenous zone more easily engorges with blood. In addition, the vibration horn (3) is used as a main driving component, the vibration stroke and frequency of the vibration horn (3) can be conveniently adjusted by means of audio, and accordingly, the change frequency and the change extent of an air pressure and an air flow in each of the enclosed hood (1) and the air blowing channel (4) can be adjusted.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA floor installation tool and installation device. The floor installation tool comprises: a telescopic member; a hook, the hook being pivotally provided on the telescopic member, the hook having an initial position on the telescopic member, the side of the hook close to the telescopic member being provided with a hook part, the hook part being used for fitting in a slot to hook floor, and the hook part being configured to be rotatable within a limited angle range relative to the slot; and an elastic member, the elastic member being arranged between the hook and the telescopic member, and the elastic member being configured to drive the hook to rotate toward the initial position.\nA: A refrigerator, which comprises: a box body, which has an inner cavity, the inner cavity having a defined storage compartment having a front opening; a side-by-side door assembly, which comprises a first door body and a second door body respectively arranged in a pivoting manner at two sides of the front opening of the storage compartment, so as to open or close the storage compartment; a vertical beam assembly, which is in whole rotatably mounted at a side of the first door body away from a center of pivot of the first door body, and which abuts against the second door body when the first door body and the second door body are closed, so as to seal a crack between the first door body, the second door body, and the box body; and the vertical beam assembly comprises: a vertical beam main body; and an extending and retracting member, which is extendably arranged at a bottom end of the vertical beam main body, and which abuts against a bottom wall of an inner cavity of the storage compartment. By means of arranging the extending and retracting member which abuts against the bottom wall of the inner cavity of the storage compartment at the bottom end of the vertical beam assembly, a crack between the vertical beam assembly and the bottom wall of the inner cavity is thereby eliminated, and sealing between the vertical beam assembly and the box body is improved.\nB: The present application provides a floor installation mechanism, a floor installation device and a floor installation method. Said mechanism comprises a connecting seat, a base, a hook plate, a knocking assembly and an elastic element. The base is slidably connected to the connecting seat. The hook plate comprises a hook portion for hooking a side edge of a floor to be installed. The knocking assembly can apply a knocking force to the hook plate. A first end of the elastic element acts on the base, a second end of the elastic element acts on the connecting seat, and the elastic element can transmit, by means of the base, a tensioning force in a knocking direction to the hook plate. Said device comprises a driving mechanism and the described floor installation mechanism, the driving mechanism being connected to a connecting seat. Said method comprises: hooking a hook portion of a hook plate to a side edge of a floor to be installed; driving a connecting seat to accumulate elastic potential energy for an elastic element; and applying a knocking force to the hook plate by means of a knocking assembly.\nC: The present application provides a pressure conduction mechanism and a charging bow used thereby, which relate to the technical field of charging devices. The pressure conduction mechanism comprises a bracket, a rocker assembly, an elastic assembly, a telescopic member and a force-applying member, wherein the rocker assembly comprises a first rocker and a second rocker; the force-applying member is used for applying a force to the second rocker; the elastic assembly comprises a first elastic member and a second elastic member; and two ends of the telescopic member are respectively hinged to the first rocker and the second rocker, the telescopic member can drive the movement of the second rocker, and when the telescopic member drives the second rocker to fall to a fifth pre-set position, the force applied to the second rocker is downward and constant.\nD: A refrigerator, comprising a refrigerator body (30), a first door body (10), a second door body (20), a vertical beam (50), and a driving mechanism (60). The driving mechanism (60) comprises a telescopic member (61) that may be at an extension position where the rear end of the telescopic member projects and extends out of the surface of the inner side of the first door body (10) or at a retraction position of retracting from the extension position to the interior of the first door body (10) by a preset distance; an elastic member (62) applies an elastic force to the telescopic member (61) to prompt same to move towards the extension position; a rotating member (63) is mounted on the first door body (10) to be rotatable around a second vertical axis and is mounted on the telescopic member (61) to be rotatable around a third vertical axis (X3); a sliding channel (631) is formed in the rotating member (63); a sliding column (64) is fixed to the vertical beam (50) and is slidable along the sliding channel (631). When the first door body (10) is in an open state, the telescopic member (61) is at the extension position, and the vertical beam (50) is in a folded state; and during the closing of the first door body (10), the telescopic member (61) is blocked by the refrigerator body (30) and moves towards the retraction position to drive the rotating member (63) to rotate around the second vertical axis (X2), so that the sliding channel (631) pushes the sliding column (64) to drive the vertical beam (50) to rotate to an unfolded state.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA mountable fireproof plate and a fixing structure thereof, comprising: a support member (2), a positioning mounting piece (3), a fireproof plate (5), and a positioning mounting pipe (6), wherein the support member (2) is installed inside a wall (1) and is fixedly connected to one end of the positioning mounting piece (3) through a bolt (4), the other end of the positioning mounting piece (3) fits with and is inserted into the positioning mounting pipe (6), and the positioning mounting pipe (6) is fixedly connected to the fireproof plate (5). The fireproof plate (5) comprises a base plate layer (51), a single plate reinforcement layer (53) and a surface plate layer (55). The mountable fireproof plate can be conveniently mounted and removed without damaging the fireproof plate, has the appearance of wood, and provides good fire protection performance. The surface of the fireproof plate does not need to be processed with spray paint, does not release formaldehyde, reducing air pollution, and provides excellent sound and heat insulation.\nA: A fire protection structure applied to a segment joint of an immersed tunnel and having a linear moving mechanism comprises a watertight band assembly (10) and a fire protection assembly (30) that are connected between two adjacent tunnel segments (40, 50) and spaced apart from each other. The fire protection assembly (30) is positioned at an inner side of the watertight band assembly (10). The fire protection assembly (30) comprises: a protection plate assembly (31), comprising a first fire protection plate assembly (311) and a second fire protection plate assembly (313) that are spaced apart from each other and a heat insulation member (312) fixed therebetween; a movable connecting assembly (33), the first fire protection plate assembly (311) and the second fire protection plate assembly (313) being movably connected to the second tunnel segment (50) by means of the movable connecting assembly (33); and a flexible fire protection band (35), positioned between the first fire protection plate assembly (311) and the second fire protection plate assembly (313), wherein one end of the flexible fire protection band (35) is connected to the heat insulation member (312), and the other end thereof is connected to the second tunnel segment (50).\nB: A structure for connecting a pillar of an aluminum alloy house to a wallboard, a door and a window. The structure comprises an aluminum alloy pillar (13), an aluminum alloy door or window frame (8), an aluminum alloy door or window sash (10), a C-shaped steel frame member (20), an aluminum alloy exterior wallboard (19), an aluminum alloy wallboard assembling frame (3) and an aluminum alloy door and window subframe (6). The aluminum alloy wallboard assembling frame (3), the aluminum alloy exterior wallboard (19), the C-shaped steel frame member (20), a heat-insulating fire-resistant calcium silicate board (2) and an interior decorative panel (1) are combined to form a modular assembled wallboard. The modular assembled wallboard fastens the aluminum alloy wallboard assembling frame (3) onto the aluminum alloy pillar (13) through a fastener. The aluminum alloy door and window subframe (6) is provided with a waterproof groove (5) therein. The aluminum alloy door and window subframe (6) is connected to the aluminum alloy door or window frame (8) pre-installed with the aluminum alloy door or window sash (10) through a fastener. The structure has an easy connection, short construction period, convenient installation, and good effects of heat insulation and preservation, sound insulation, water resistance, and fire resistance.\nC: A structure with a detailed log wall decorative surface comprises an interior decorative plate (10), a first structural plate (1), a light-steel support member (2), a second structural plate (3), a support member (5) and an exterior decorative plate (6) which are sequentially arranged from inside to outside. The surface of the exterior decorative plate (6) is provided with continuous circular, semi-circular or protruding columns. The support member (5), the second structural plate (3) and the light-steel support member (2) are fixed together by means of a plurality of first self-tapping screws (7). The exterior decorative plate (6) is fixed to the support member (5) by means of a plurality of second self-tapping screws (8). The second self-tapping screws (8) are located between two adjacent columns, and the exterior decorative plate (6) is parallel or perpendicular to the support member (5). The decorative surface structure of the log wall adopts a whole-piece molding process, and has the advantages of light weight, quick installation, high application efficiency, and good fire protection performance.\nD: A car and a vehicle body. The car comprises a car body (10). The car body (10) comprises a first side wall (110) and a second side wall (120) adjacent to each other. An electrical cabinet is disposed in the car body (10) and located at a joint between the first side wall (110) and the second side wall (120). A fireproof cabinet (200) is connected to the car body (10) and provided over the outer side of the electrical cabinet. The fireproof cabinet (200) is made of fireproof composite boards which comprise fireproof boards (310), first aluminum plates (320), light-core rigid boards (330) and second aluminum boards (340), wherein the fireproof boards (310) face away from the electrical cabinet. Since the fireproof cabinet (20) is arranged on the outer side of the electrical cabinet, the electrical cabinet itself does not have to be fireproof. The periphery of the fireproof cabinet (20) is connected to the car body (10) such that the fireproof cabinet and the car body (10) form a closed space to guarantee the fireproof capability. The fireproof cabinet (20) is made of fireproof composite boards, which are lighter, do not generate harmful gas and are more environmentally friendly compared to simple fireproof boards.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA high-security clutch electronic lock cylinder comprises a lock cylinder body (11), a lock cylinder core (2), a slide block (7), a transmission apparatus, an electric driver, an unlocking piece (8), and an unlocking piece housing (9). The slide block (7) is connected to a power output end of the electric driver by means of the transmission apparatus. The center of the end of the slide block (7) away from the electric driver is provided with an end head (7b). The end of the unlocking piece (8) near the slide block (7) is provided with a slot (8a); the end of the unlocking piece (8) away from the slide block (7) is provided with a compression spring (10). The end of the compression spring (10) away from the unlocking piece (8) is in contact with the inner wall of the unlocking piece housing (9). The slide block (7), the unlocking piece (8) and the compression spring (10) form a clutch structure for the electric lock cylinder.\nA: A magnetic core material receiving and boxing apparatus, comprising a storage box (1), a support structure (2) being arranged on both the right side and the left side of the inner cavity of the storage box (1), a placement plate (3) being arranged above the support structures (2), a placement box (4) being fixedly connected to the bottom of the placement plate (3), a clamping structure (5) being arranged on the top of the placement plate (3), a sealing structure (6) being arranged on the front surface of the storage box (1), a connecting plate (7) being fixedly connected to the top of the inner cavity of the storage box (1), a sliding groove (8) being disposed on two sides of the bottom of the connecting plate (7), a sliding block (9) being slidably connected in the sliding groove (8), a tensile spring (10) being arranged in the sliding groove (8), the two ends of the tensile spring (10) respectively being welded to the inner wall of the sliding groove (8) and the surface of the sliding block (9), a moving rod (11) being movably connected to the bottom of the sliding block (9) by means of a moving shaft, and a pressing plate (12) being fixedly connected to the end of the moving rod (11) furthest from the sliding block (9) by means of the moving shaft.\nB: A linear actuator, comprising a drive circuit board (1) and a bracket (8) mounted thereupon, said bracket comprising a motor (7) seat and a slide block (4) seat; two end faces of the slide block seat are provided with threaded holes, with two ends of a lead screw (7) passing through said threaded holes; a slide block (4) is provided on the lead screw and meshedly engaged therewith, said slide block being positioned between the two end faces of the slide block seat; a brush (3) is provided on the side of the slide block (4) away from the motor base, said brush (3) being provided with a connection face and a brush face; a potentiometer (2) is fixedly connected by a bolt (6) to the side face of the slide block seat of the bracket (8) away from the motor seat, two strips of carbon film (21, 22) are longitudinally arranged in parallel on the face of the side of the potentiometer (2) near the slide block (4), with the brush face of the brush (3) being in contact with the two carbon films (21, 22); the output shaft of a motor (7) is provided with a driving gear (13), the end of the lead screw (10) near the driving gear (13) is provided with a driven gear (9); the driving gear (13) and the driven gear (9) are meshedly engaged with each other.\nC: A portable haptic feedback capacitive stylus for interaction on a mobile terminal comprises a tip (1), a sleeve ring (2), a first housing (3), a connecting cylinder (8), a second housing (5), an end-portion housing (16), a motor (4), a spring (9), a slider (10), a screw rod (11), a photoelectric code disc (12), a measurement and control module, a vibration touch module (7), and a power supply (15). The first housing (3) comprises a front housing and a rear housing, and a limit groove (302) is disposed in an inner wall of the first housing (3). The tip (1) is fixedly connected to one end of the connecting cylinder (8), and the one end of the connecting cylinder (8) passes through an end-portion through hole of the front housing. A clearance fit is provided between the sleeve ring (2) and the connecting cylinder (8). One end of the screw rod (11) is connected in the connecting cylinder (8), and the one end of the screw rod (11) is connected to the motor (4). The slider (10) is sleeved over the screw rod (11), and the slider (10) and the screw rod (11) fit each other. One end of the spring (9) is connected to the slider (10), and the one end of the spring (9) is connected to the sleeve ring (2). The photoelectric code disc (12) is connected to the motor (4), and the measurement and control module is separately connected to the photoelectric code disc (12) and the motor (4). The haptic feedback capacitive stylus solves a problem that haptic interaction on a mobile terminal is difficult to implement, and can generate continuous haptic feedbacks.\nD: An unexpected unlocking proof electronic lock, comprising a lock cylinder core (10), a control circuit (7) and a clutch sleeve (20), the control circuit (7) being provided in the lock cylinder core (10), and a key hole being formed in the lock cylinder core (10); the electronic lock further comprises a transmission system, a power shaft (14), a clutch cam (19), a key clamping cam (13), a key clamping pin (12) and a suspension frame, and the lock cylinder core (10) is further provided with a clamping jaw (3), a torsion spring (18) and a clamping jaw motor (17); one end of the clamping jaw (3) is connected to an output shaft of the clamping jaw motor (17), one end of the torsion spring (18) is fixed to the suspension frame, and the other end of the torsion spring is connected to the clamping jaw (3); and the key clamping cam (30) is provided with a limiting groove, and the lock cylinder core (10) is provided with a limiting pin (8). Said electronic lock has low power consumption, a small size and strong violence resistant performance.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn anti-theft alarm device for a safe comprises a main control chip (1), an alarm monitoring circuit (2), a vibration sensing device (3), a signal receiving device (4), and a signal transmitting device (5). The alarm monitoring circuit (2), the vibration sensing device (3), the signal receiving device (4), and the signal transmitting device (5) are all connected with the main control chip (1). The present invention has high degree of intellectualization and reliable safety performance.\nA: Provided is a device for monitoring states of a door and a window. The device comprises a housing (3) provided with a groove (2). A signal sensing mechanism in the housing (3) comprises a first fixed sensing sheet (4) and a second fixed sensing sheet (9). The upper end and the lower end of an elastic connection member (7) in the groove (2) are respectively fixed on a first movable sensing sheet (6) and the second fixed sensing sheet (9). An insulation connection rod (1) is mounted on the first movable sensing sheet (6). The upper part of the connection rod (1) protrudes over the first fixed sensing sheet (4). A movable sensing sheet (8) is mounted on the lower end of the connection rod (1). A distance between the second movable sensing sheet (8) and the second fixed sensing sheet (9) is equal to a distance formed when the upper part of the connection rod (1) protrudes over the first fixed sensing sheet (4). The first fixed sensing sheet (4), the second fixed sensing sheet (9), the first movable sensing sheet (6) and the second movable sensing sheet (8) are all connected to a signal receiver (10). The device has a simple structure, can be used for monitoring a door and window system having higher air tightness and temperature keeping performance, can implement the monitoring in real time, and can improve the safety of a door and a window in use.\nB: A P2P network based anti-theft system for a safe comprises a safe body (1), a monitoring device (2), a control device (3), a communication device (4), a server (5), and a client (6). The monitoring device (2), the control device (3), and the communication device (4) are all mounted on the safe body. The monitoring device (2) and the communication device (4) are both connected with the control device (3). The communication device (4), the server (5), and the client (6) are communicationally connected over a P2P network. The anti-theft system for a safe has a good information transmission effect and a low requirement for the server.\nC: A downhole detector, comprising: a waterproof housing (1), a top portion of the waterproof housing (1) being provided with a lifting ring, while the waterproof housing (1) is provided therein with a circuit cavity (3) and a battery cavity (4); the battery cavity (4) is provided therein with a power supply battery, which is used for supplying power to a detector, and the circuit cavity is provided therein with a monitoring circuit; the monitoring circuit comprises a main control chip and a communication device, which is in signal connection with the main control chip, the communication device comprising a communication chip and an antenna; an oxygen concentration detector (5) is provided on the waterproof housing (1), the oxygen concentration detector (5) being in signal connection with the main control chip; by means of a simple structural design, when a downhole situation requires detection, the detector is lowered into a downhole by using only a rope and may carry out detection.\nD: Provided is a downhole detector, comprising a waterproof outer housing (1); the top of said waterproof outer housing (1) is provided with a suspension ring (2), the waterproof outer housing (1) is internally provided with a circuit chamber (3) and a battery chamber (4), and said battery chamber (4) is internally provided with a power supply battery used for supplying power to the detector; the circuit chamber is internally provided with a monitoring circuit, said monitoring circuit comprising a main control chip and a communications device signally connected to said main control chip; said communications device comprises a communications chip and an antenna; the waterproof outer housing (1) is provided with an oxygen-concentration measurement device (5), said oxygen-concentration measurement device (5) being signally connected to the main control chip; by means of a simple structural design, it is possible to place the detector into a well using only a cord and perform detection when it is necessary to do so in a downhole setting.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a return device and a windproof roller shutter. The return device comprises an end cover (10), a sliding component (21) and a fixing plate (20), wherein the end cover (10) is provided with a sliding slot (131); the sliding slot (131) is obliquely disposed; the horizontal height of a first end of the sliding slot (131) is higher than that of a second end of the sliding slot (131); the sliding component (21) moves along the sliding slot (131); the fixing plate (20) is mounted at one end of a roller tube (50); and the sliding component (21) is mounted on the fixing plate (20). The windproof roller shutter comprises the roller tube (50), a shutter body (60), a lower rail (55), two side rails (40) and two return devices. The return device can effectively reduce friction between the shutter body and the side rails when the shutter body is raised or lowered so as to ensure that the windproof roller shutter can be raised or lowered smoothly.\nA: Disclosed is an opening and closing structure for a cosmetic container, comprising a shell (10) and a middle binding core (20). The shell (10) comprises an outer cover (11), an inner cover (12), a middle ring (13) and a bottom cover (14). A side wall at a lower part of the outer cover (11) is provided with a first sliding groove (111) along the axial direction. The inner cover (12) is sheathed in the lower part of the outer cover (11). A side wall of the inner cover (12) has a first sliding column (121) provided in the first sliding groove (111) in a sliding manner. An inner wall of the middle ring (13) is provided with a first spiral groove (131), and is sheathed on the lower part of the outer cover (11) in a rotating manner, so that the first sliding column (121) is provided in the first spiral groove (131) in a sliding manner. An upper edge of the bottom cover (14) is connected to a lower edge of the outer cover (11) in a fixed manner. The middle binding core (20) is stuck in an inner cavity formed by the bottom cover (14) and the inner cover (12). By rotating the middle ring (13), the middle binding core (20) is automatically ejected downwards, and can automatically return to the shell (10) by directly pressing the bottom after use, thereby breaking through the traditional method of use whereby a cover is pulled out, and increasing the overall simplicity and convenience.\nB: An electronic device (200) and a folding mechanism (100). The folding mechanism (100) comprises a first supporting member (10), a second supporting member (20), a bendable fixing assembly (30), a connecting assembly (40), a first sliding assembly (50), and a second sliding assembly (60). The first supporting member (10) is provided with a first sliding slot (11). The second supporting member (20) is provided with a second sliding slot (21). Two opposite sides of the fixing assembly (30) are respectively fixed on the first supporting member (10) and the second supporting member (20). The connecting assembly (40) is fixed on the fixing assembly (30), and the connecting assembly (40) comprises a connecting rotating shaft (41). The first sliding assembly (50) comprises a first sliding portion (51) and a first rotating portion (52); the first sliding portion (51) is mounted in the first sliding slot (11) and is slidable with respect to the first supporting member (10); the first rotating portion (52) is rotatably mounted on the connecting rotating shaft (41). The second sliding assembly (60) comprises a second sliding portion (61) and a second rotating portion (62); the second sliding portion (61) is mounted in the second sliding slot (21) and is slidable with respect to the second supporting member (20); the second rotating portion (62) is rotatably mounted on the connecting rotating shaft (41).\nC: Provided is a roller shutter which is convenient to mount, comprising a roller shutter body (1) with a reel pipe (2), wherein a positioning sleeve (41) embedded in the reel pipe (2) and a retractable fixing assembly (4) located in the positioning sleeve are arranged on at least one end of the roller shutter body (1); the positioning sleeve (41) is fixedly connected to the reel pipe (2); the positioning sleeve (41) and the retractable fixing assembly (4) can rotate in a relative manner; and the retractable fixing assembly (4) comprises a self-locking retractable mechanism and a retaining plug assembly for bearing against a wall surface to increase a friction force. The roller shutter is convenient to mount and dismount, and the distance between fixed points at two sides of the roller shutter can be adjusted according to the width of a window.\nD: An interventional instrument assistive control member (100) for positioning an interventional instrument (200). The interventional instrument assistive control member (100) comprises a supporting frame (10) and at least one sliding assembly (20); the interventional instrument (200) is detachably connected to the sliding assembly (20); the supporting frame (10) comprises a sliding guide rod (13); the sliding guide rod (13) is provided with at least one gear rack (131) along the length direction of the sliding guide rod; the sliding assembly (20) comprises a sliding block (21) and an adjustment mechanism (23) detachably provided on the sliding block (21); the adjustment mechanism (23) comprises a limiting portion (235) and a gear (234) fixedly connected to the limiting portion (235); when the sliding assembly (20) is mounted on the sliding guide rod (13), the sliding block (21) is sleeved on the sliding guide rod (13), the gear (234) is engaged with the gear rack (131), and the limiting portion (235) is limited between the sliding guide rod (13) and the sidewall of the sliding block (21); and when the sliding assembly (20) is separated from the sliding guide rod (13), the adjustment mechanism (23) can be separated from the sliding block (21). Further provided is an interventional medical system comprising the interventional instrument (200) and the interventional instrument assistive control member (100).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA device for reducing annulus drilling fluid pressure at well bottoms, comprising a central shaft, and a cylinder body sleeved on the outside of the central shaft; the central shaft comprises, in order, a force transmission shaft (1) connected to a fluid re-distribution plunger (2); the cylinder body comprises a spline cylinder (3), an elastic-element protection cylinder (4), a connector (5), and a pressure reduction cylinder (6), which are connected in said order; the elastic-element protection cylinder and the connector are sleeved on the outside of the force transmission shaft, and an elastic element (7) is arranged between said protection cylinder and the force transmission shaft; the pressure reduction cylinder is sleeved on the outside of the fluid re-distribution plunger, a first fluid storage cavity (9) is formed between the pressure reduction cylinder, the connector, and the fluid re-distribution plunger, and a second fluid storage cavity (10) is formed between the pressure reduction cylinder and the fluid re-distribution plunger; a first inlet channel (11) and a first fluid discharge channel (12) are formed on the connector, and a second inlet channel (13) and a second fluid discharge channel (14) are arranged on the pressure reduction cylinder; the first inlet channel and the second inlet channel are each provided with a suction valve (15, 17), and the first fluid discharge channel and the second fluid discharge channel are each provided with a fluid discharge valve (16, 18). By using drill string vibration as a source of energy, the present device reduces the risk associated with drill string vibration and reduces the drilling fluid pressure at well bottoms, while increasing rock-breaking efficiency.\nA: A deflation device for ejection overload control of a rocket ejection seat. The deflation device comprises single joints (1), a valve seat (4), and an electric initiator (7); the single joints (1) are provided on outer cylinders (10) of an ejection mechanism in one-to-one correspondence, the single joints (1) are in sealing communication with the top ends of the outer cylinders (10), and all the single joints (1) are in sealing communication with a multi-way joint (3) by means of respective guide pipes (2); the valve seat (4) is provided with a first channel and a second channel, the multi-way joint (3) is connected to the valve seat (4) and an outlet end of the multi-way joint is in sealing communication with an inlet of the first channel, an outlet of the first channel is communicated with the atmosphere, a piston rod (9) that cannot be detached is fitted in the second channel, and when in an initial state, the piston rod (9) is fixed to the valve seat (4) by means of a shear pin (5); the electric initiator (7) is mounted at an inlet of the second channel in a butt-joint manner by means of a mounting cylinder (6), the mounting cylinder (6) forms a closed channel between the electric initiator (7) and the piston rod (9), and when working, the electric initiator (7) can drive the piston rod (9) to shear off the shear pin (5) and enable same to extend out of an outlet of the second channel to block the outlet of the first channel. The device can control the magnitude of ejection overload according to requirements, thereby reducing the complexity and weight of a control system.\nB: A horizontal well drilling apparatus for testing lubricity, taking a cuttings bed into account. The testing apparatus comprises a simulated wellbore (8), wherein one end of the simulated wellbore is provided with a pulley (16), and the other end is fixed with a hydraulic cylinder (38) and installed with a drill pipe (5), the drill pipe (5) being connected to a drive mechanism (1) and a rotation drive mechanism (4), and the drill pipe (5) being provided with a thrust sensor (2) and a torque sensor (3); a cuttings feeding port (9) is arranged above the simulated wellbore (8), and is connected to a slurry tank (24) via a fluid inlet pipeline (18), the fluid inlet pipeline (18) being provided with a high-pressure pump (23), a flowmeter (22) and a pressure sensor (19); a lower end of the simulated wellbore (8) is connected to a fluid return pipeline (26), the fluid return pipeline (26) being provided with a temperature- and pressure-reducing mechanism (29), a flowmeter and a conveying pump (28); and the simulated wellbore (8) is provided with an ultrasonic probe (6) and is connected to a core holder (13), the core holder (13) being provided with a heating mechanism, a core (11) and a pressure mechanism, and an inner side of a lower wall of the simulated wellbore is provided with a cuttings lifting platform (7). According to the apparatus, during a test, cuttings and a drilling fluid are added, and the pressure, the temperature, and the thickness of the cuttings are adjusted to simulate composite drilling. The apparatus not only takes the friction between a drill column and the drilling fluid, a well wall and a mud cake into account, but also takes the friction between the drill column and a cuttings bed into account, thus being more in keeping with actual working conditions.\nC: A pump head and a container for daily use. The pump head comprises a piston (2), and further comprises an axial moving assembly (1), a liquid suction channel (4), an outflow channel (5), and a support (6). The axial moving assembly (1) comprises a buffer liquid portion (11), an opening portion (12), a closing end (13), and a sealing portion (31, 32); the internal space of the buffer liquid portion (11) and opening portion (12) are a liquid storage space (14); one end of the liquid storage space (14) is closed by the piston (2), and the other end is closed by the closing end (13); the opening portion (12) is provided with an opening (15); in order of distance from the piston (2) from near to far, an outlet (41) of the liquid suction channel (4) and an inlet (51) of the outflow channel (5) are sequentially arranged on a side edge of the stroke of the opening (15) and both can communicate with the opening (15); the sealing portion (31, 32) seals a seam at a joint when the opening (15) communicates with the outlet (41) of the liquid suction channel (4) or with the inlet (51) of the outflow channel (5).\nD: A high pressure liquid cylinder structure, comprising: a cylinder (100), provided with an inlet passage (110) located at a side portion, a mounting space being vertically provided at the middle of the cylinder, the inlet passage being connected to the mounting space; a suction valve structure (200), detachably mounted inside the mounting space and close to the inlet passage, the suction valve structure comprising a liquid inlet hole (211), a liquid discharging hole (212), and a suction valve passage hole (213) communicated with the liquid inlet hole and the liquid discharging hole, wherein the liquid inlet hole and the inlet passage are communicated, a suction valve core (220) is movably mounted at the suction valve passage hole, and after the suction valve core moves, the suction valve core can be disconnected from or communicated with the suction valve passage hole and the liquid discharging hole; and a discharge valve structure (300), detachably mounted inside the mounting space and located above the suction valve structure, the suction valve structure comprising a discharge valve passage hole (311) communicated with the liquid discharging hole, wherein an outlet pipeline (400) is connected to an outlet of the discharge valve passage hole, a discharge valve core (320) is movably mounted at the discharge valve passage hole, and after the discharge valve core moves, the discharge valve core can be disconnected from or communicated with the discharge valve passage hole and the outlet pipeline. Further discloses is a vertical type combination valve group.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to a system for dynamically monitoring roadway roof separation based on a fibre grating and a pre-warning method, which belongs to the field of mine safety monitoring. Three parts, i.e., a ground data processing and control sub-system, a downhole data transmission communication sub-system and a downhole sensing data collecting sub-system are comprised: the ground data processing and control sub-system is placed in a ground control centre room, and is composed of a ground upper master monitoring computer, a fibre grating demodulation apparatus and a power supply; the downhole data transmission communication sub-system is composed of a mining transmission fibre and a fibre junction box; and the downhole sensing data collecting sub-system comprises at least one apparatus for monitoring fibre grating roof separation. The real-time online dynamic consecutive measurement of roof separation is realized, a transformation circumstance of a roadway surrounding rock is obtained, and the rationality of a bolting support parameter is verified. Once the pre-warning threshold of separation is exceeded, a pre-warning signal can be sent correctly, so that measures can be taken in time, and roof collapse can be prevented, which is of great importance for the outer roof separation size and the roadway stability in an anchorage zone.\nA: Disclosed is a fiber grating intelligent coal-rock identification device for a shearer drum. The fiber grating intelligent coal-rock identification device comprises the shearer drum; a fiber grating acceleration sensor is fixedly provided on the shearer drum, the fiber grating acceleration sensor is electrically connected to a fiber grating demodulator, the fiber grating demodulator is electrically connected to a computer, the computer is electrically connected to a signal receiver, and the signal receiver is connected to an oil pump motor for controlling the drum to move. According to the present invention, vibration signals can be effectively transmitted to a computer data processing system in time, and a curve graph is generated; real-time monitoring is achieved, the precision is high, interference of the severe environment of a coal face is avoided, stable real-time data is provided for a shearer lifting control system, deployment and maintenance are easy, and cost is low.\nB: An online temperature monitoring system for a deep well-type grounding electrode, comprising a temperature measuring optical cable (1) that extends underground, a temperature demodulation instrument (2), a communication optical cable (3), an optical fiber grating thermometer (4), a temperature calibration box (5), a temperature calibration optical cable (6), a wireless transmission module (7), a power supply module (8) and a processor (9). An end of the temperature measuring optical cable (1) that extends underground is connected to the optical fiber grating thermometer (4), and the other end of the temperature measuring optical cable (1) extends out of a well opening and is connected to an end of the temperature calibration optical cable (6); the other end of the temperature calibration optical cable (6) is connected to an end of the communication optical cable (3); the temperature calibration optical cable (6) is placed within the temperature calibration box (5); the other end of the communication optical cable (3) accesses the temperature demodulation instrument (2); the wireless transmission module (7) is connected to the temperature demodulation instrument (2); the power supply module (8) supplies power; and the processor (9) is carried on a computer device terminal. Long-term stable real-time online temperature monitoring of a deep well-type grounding electrode may be achieved by means of the described online temperature monitoring system for a deep well-type grounding electrode.\nC: An acoustic-emission-based health monitoring system and method. The system comprises: at least one optical fibre grating sensor (1), wherein the optical fibre grating sensor (1) is arranged inside or on a surface of a monitored object (00) and is used to detect an acoustic emission signal generated by the monitored object (00); a light source (2) for providing a light source for the optical fibre grating sensor (1); a demodulation system (3) for obtaining the acoustic emission signal generated by the monitored object (00) according to a central wavelength offset of reflected light of the optical fibre grating sensor (1) and a correlation between the central wavelength offset and the acoustic emission signal; and a control system (4) for comparing the acoustic emission signal with reference data so as to obtain a health degree value of the monitored object (00). Since an optical fibre grating sensor (1) is small in size and light in weight, an optical fibre with the optical fibre grating sensor (1) can be directly arranged inside a transformer, for example, inside a winding, and thus the transmission loss of an acoustic emission signal can be reduced and the sensitivity degree of a monitoring system can be improved.\nD: A dynamic state monitor of roof for filling coal mining goaf in a comprehensive and mechanized way is composed of a monitor base, a multiplestage telescopic rod and a floor offer (12). The monitor base is composed of a base cylinder (5), a spring (6), a transmission cable (13), a pattern displacement meter (15) and a guide rod (7). A displacement meter support (9), a protective port (11), a spring seat (8) and range limiting plates (16, 17) are arranged in the base cylinder. The pattern displacement meter (15) contains a chip (14). The base cylinder (5) is fixed on the floor offer (12) with screws. The spring (6) is arranged in the bayonet slot of the spring seat (8), the pattern displacement meter (15) is arranged in the bayonet slot of the displacement meter support (9), the guide rod (7) is directly connected to the pattern displacement meter (15), the guide rod (7)and the pattern displacement meter (15) are sleeved in the spring (6), and the transmission cable (13) is connected with the chip (14). The multiplestage telescopic rod is composed of a first stage rod (4), a second stage rod (20) and a third stage rod (21), wherein the first stage rod is installed in the base cylinder (5)and is in direct contact with the range limiting plates (16, 17) on the guide rod (7). The second stage rod (20) is fixed in the installation groove in the first stage rod (4) with a fastening bolt (19), and the third stage rod (21) and the second stage rod (20) are fixed with a fixing bolt (2). The monitor can directly and accurately monitor the dynamic subsidence amount of the roof, and is ingenious in structure and convenient to use.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vertical ventilation method and system suitable for coal and gas outburst mining using a 110 mining method. The vertical ventilation method comprises: before working face mining, construct a first process roadway (8) and/or a second process roadway (9); during working face mining, the part of a working face track gateway (5) located in a goaf forms a first roof-cut retained roadway section (11) and/or the part of a working face transportation gateway (4) forms a second roof-cut retained roadway section (12) such that intake air of the first roof-cut retained roadway section (11) enters a gas drainage return air roadway (7) through the first process roadway (8) to form return air, and/or intake air of the second roof-cut retained roadway section (12) enters a gas drainage intake air roadway (6) through the second process roadway (9) to form return air. The vertical ventilation system constructed using the gas drainage intake air roadway (6) and the gas drainage return air roadway (7) can monitor retained roadway sections in real time and eliminate the accumulation of harmful gases in the retained roadway sections while implementing the ventilation of the retained roadway sections.\nA: A solid-filling coal mining method with two pre-excavated tunnels for advancing. A mining roadway adopts an arrangement mode that the pre-excavated tunnels are taken as air return and inlet roadways and a gob-side entry retaining roadway is taken as a roadway for transporting filling materials and coal; coal extraction and gob backfilling are carried out by a comprehensive mechanical solid-filling coal mining process; and a coal mining method that a mining sequence is propelled by making a filling coal mining working face be back to the direction of transporting the coal to a mountain in a mining area is used. The pre-excavated tunnels are formed, by tunneling, before the extraction of the working face, and the gob-side entry retaining roadway is formed by optimally designed filling bodies beside the roadway along with the implementation of advancing filling coal mining operation along the working face. The coal mining method is simple in process, technically and completely realizes coal milling without pillars, and achieves high coal resource extraction rate. The coal mining method can not only solve the technical problems that a draw-back-type down-mining and up-filling working face cannot ensure a filling effect during a filling milling process of a mine with shortage of resources, but also materialize the comprehensive mechanical solid-filling coal mining of mines with limited geological conditions by virtue of an advancing up-milling and down-filling working face.\nB: A complete non-coal-pillar continuous depressurized mining method for a short-distance coal seam group, which is applicable to a coal mining project. The method comprises: determining the mining sequence of coal seams in a coal seam group; when a first coalface (1) of a first mined coal seam is mined, building a filling-wall (11) in which a breather pipe (10) is disposed along the edge of a goaf, so as to form a gob-side entry retaining (12); taking the roadway as a transportation roadway (4) when a second coalface (2) is mined, continuing to perform a gob-side entry retaining (12) in a track roadway, cutting and removing a flexible mold bag (13) on the surface of the previous gob-side entry retaining (12) behind the coalface; and when the coal recovery of the second coalface is completed, filling carbon dioxide into the breather pipe (10) in the filling-wall (11) of the first coalface, so that a carbonization reaction occurs on the filling-wall (11), and the filling-wall (11) is broken and decomposed. After the mining of a coal seam is completed, because a top plate is not supported by a coal-rock pillar, the top plate can move and sink fully and the depressurized mining on adjacent coal seams can be achieved, thereby avoiding the stress concentration produced by the hangover of the filling-wall, and facilitating the mining space maintenance, gas extraction and dynamic disaster prevention and control.\nC: A test method for simulating spontaneous combustion in a goaf region, employing a test device simulating spontaneous combustion in a goaf region. A test furnace of the test device is provided with a coal outlet (6), an air inlet pipe (19), and an air return pipe (20). The test furnace is provided therein with a coal seam (8), a similar material base plate (9), a preconfigured water bag (10), a similar material base plate (11) to be sunk, a first similar material top plate (12), and a second similar material top plate (13). Multi-point thermocouple measurement rods (15) and gas collection tubes (17) are provided on the second similar material top plate (13). A coating layer (14) is provided between the multi-point thermocouple measurement rods (15). The multi-point thermocouple measurement rods (15) are provided with several thermocouples (16). The multi-point thermocouple measurement rods (15) and the gas collection tubes (17) are in close contact with the similar material. Two ends of a coal face (21) on the coal seam (8) are provided with an intake airway (32) and a ventilation airway (33). An arc-shaped perforated protection tube (18) is laid at the intake airway (32), the coal face (21), and the ventilation airway (33) to support coal and form a certain channel space, so as to construct an air intake and ventilation system for a goaf region and the face. The test method enables accurate and effective simulation of the entire process of spontaneous combustion in a goaf region under air leakage conditions.\nD: A staged ventilation method based on the construction of a complex cavern group, comprising the following steps: perform press-in ventilation while digging in inclined shaft channels, and air supply stopping points reach the entrance of a third sub-channel (6) and the exit of a fourth sub-channel (7); S2: the air supply stopping points reach the entrance of a second sub-channel (5), the exit of a seventh sub-channel (10), and the exit of a triple arch section (2) close to the fourth sub-channel (7); S3: the air supply stopping point of the ath inclined shaft channel (11) directly reaches a tunnel section (1) at a corresponding end, and further reaches the triple arch section (2) and the tunnel section (1) at the corresponding end through the second sub-channel (5) and a sixth sub-channel (9), and the air supply stopping point of the bth inclined shaft channel (12) reaches the tunnel section (1) at a corresponding end and the triple arch section (2) through the seventh sub-channel (10) and the fourth sub-channel (7); S4: form a tunnel-type full-air-pressure ventilation system of a main through air flow tunnel; S5: continue to perform full-air-pressure ventilation while digging; and S6: combine the full-air-pressure ventilation while digging and exhaust ventilation while digging. The method has the advantages of ensuring a construction period, improving construction quality and construction safety, satisfying the ventilation requirement of construction work in all stages, and saving energy and reducing consumption.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA rotary engine, comprising a housing having an inner cavity in the shape of a figure of eight, and a casing inner cavity device main rotary shaft (35) and auxiliary rotary shaft (48), the main rotary shaft (35) and the auxiliary rotary shaft (48) performing transmission via transmission gears (23, 24), the main rotary shaft (35) driving recessed main rolling wheels (31, 32) to rotate, the auxiliary rotary shaft (48) driving a first spacer ring (42) and a second spacer ring (43) to rotate, a second rolling wheel (41) being placed between the first spacer ring (42) and the second spacer ring (43), direct transmission not being possible between the second rolling wheel (41) and the auxiliary rotary shaft (48), the outer circle of the second rolling wheel (41) being tangential to the outer circle of the recessed main rolling wheels (31, 32), the recessed main rolling wheels (31, 32) driving the second rolling wheel (41) to rotate when rotating, a third rolling wheel (51) being mounted between the first spacer ring (42) and the second spacer ring (43) via a third shaft (55), the outer circle of the third rolling wheel (51) being tangential to the outer circle of the second rolling wheel (41) and cutting inside a cylinder inner cavity, the third rolling wheel (51) being driven around the second rolling wheel (41) by the first spacer ring (42) and the second spacer ring (43) to rotate in a rolling manner in the casing inner cavity, forming a variable capacitance cavity body with the synchronously rotating main rolling wheels (31, 32), and opening a ventilation port (a) in a timely manner during motion.\nA: A rotary piston engine, comprising a housing and a rotor (11). The rotating rotor (11) is disposed inside the housing; the cavity of the rotor (11) is divided into a compression chamber (13) with a changing volume. The outer ring of the housing is provided with several combustion chambers (14) that can rotate around a main shaft (7) of the rotor (11), and any one of the combustion chambers (14) is communicated with the compression chamber (13). The combustion chambers (14) are in transmission connection with the main shaft (7) via a transmission system, and the combustion chambers (14) drive the main shaft (7) to rotate by means of the combustion of compressed gas. The housing comprises an upper cylinder head (8) and a lower cylinder head (9), and a boss (12) of the upper cylinder head (8) is matched with the seam allowance of the lower cylinder head (9). A rotatable piston wheel gear (10) is provided between the upper cylinder head ( 8) and the lower cylinder head (9); evenly distributed support blocks (37) are arranged on the inner ring of the piston wheel gear (10), and the support blocks (37) are in contact with the rolling pair of the boss (12). Cavities enclosed by the boss (12), the lower cylinder head (9) and two adjacent support blocks (37) are combustion chambers (14). The rotary piston engine overcomes the shortcoming of long and narrow combustion chambers in traditional Wankel triangle rotor engine by means of rotating combustion chambers (14), and improves the combustion efficiency of the engine.\nB: A caster and a trolley having the caster, the caster comprising: a shell (1) provided with a first rotary shaft for being connected to an external element; an elastic friction element (3) hinged in the shell (1) and partially extending out of the shell (1) to be disposed in the shell (1); and an extrusion element (4) positioned in the shell (1) and used for extruding the friction element (3) so as to deform the friction element (3). The extrusion element (4) is connected with the first rotary shaft, and the extrusion element (4) and the friction element have a non-contact position, a first contact position and a second contact position; when in the first contact position, the first rotary shaft cannot rotate and a rotary wheel (2) can roll; and when in the second contact position, the first rotary shaft cannot rotate and the rotary wheel (2) cannot roll. The trolley further comprises a ground slope detecting unit disposed on a trolley body and a grip force sensing unit disposed on each handle. The trolley can brake itself according to the angle of a slope.\nC: An automatic reloading device for a 3D printer, and an automatic reloading method. Said device comprises an extrusion mechanism and a switching mechanism (6); the extrusion mechanism comprises a driving wheel (7), a first driven wheel set (41), a second driven wheel set (51), a first rotating clamp (4), a second rotating clamp (5), and a tension spring (43); one end of each of the first rotating clamp (4) and the second rotating clamp (5) is hinged to a cover body (1), and the other end of each of the first rotating clamp (4) and the second rotating clamp (5) is connected to the tension spring (43); the switching mechanism (6) comprises a switching rod (61) rotatably connected to an extrusion base (12), and a switching handle (62) fixedly connected to the switching rod (61); the end of the first rotating clamp (4) close to the tension spring (43) is fixedly connected to a first limiting column (42), and the end of the second rotating clamp (5) close to the tension spring (43) is fixedly connected to a second limiting column (52); and when the switching handle (62) is in an initial state, two ends of the switching rod (61) respectively abut against the first limiting column (42) and the second limiting column (52), such that the first driven wheel set (41) and the second driven wheel set (52) are both separated from the driving wheel (7). The present device has a high automation degree, increases the working efficiency, and reduces labor costs.\nD: A driving device (100) and an inspection device (200). The driving device (100) comprises a chassis (3), a power assembly (4), a first driving wheel (51), a second driving wheel (52), and an elastic member (6); the power assembly (4) comprises a first motor (41), a second motor (42), a first rotating shaft (43), and a second rotating shaft (44); the first motor (41) and the second motor (42) are both disposed below the chassis (3); the upper end of the first rotating shaft (43) is connected to the first motor (41) so that the first motor (41) drives the first rotating shaft (43) to rotate; the upper end of the second rotating shaft (44) is connected to the second motor (42) so that the second motor (42) drives the second rotating shaft (44) to rotate; the first driving wheel (51) is connected to the lower end of the first rotating shaft (43); the second driving wheel (52) is connected to the lower end of the second rotating shaft (44); the elastic member (6) is disposed on the chassis (3), and the elastic member (6) has one end connected to the first rotating shaft (43) and the other end connected to the second rotating shaft (44). The driving device (100) can travel on a horizontally laid track of a fully mechanized mining face, such that unmanned inspection is achieved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA compressor, comprising: a support (10), a first limiting structure (11) being provided on the support (10); a rotation prevention structure (40), disposed between the support (10) and a movable scroll plate assembly and provided with a first positioning structure (41) and a second positioning structure (42), the first positioning structure (41) being movably provided in the first limiting structure (11), and the second positioning structure (42) being movably disposed in a second limiting structure (21); a first suspension structure (50), working in concert with the first positioning structure (41) and the first limiting structure (11) to reserve a first predetermined gap between the first positioning structure (41) and the first limiting structure (11); and a second suspension structure (60), working in concert with the second positioning structure (42) and the second limiting structure (21) to reserve a second predetermined gap between the second positioning structure (42) and the second limiting structure (21). Also provided is a vehicle having the compressor. According to the structure, the rotation prevention structure (40) can be kept from being in contact with both the support (10) and the movable scroll plate assembly, so that generation of friction between the rotation prevention structure (40) and the support (10) and between the rotation prevention structure (40) and the movable scroll plate assembly is avoided, and no lubricating oil or lubricating grease is required by the rotation prevention structure (40).\nA: Disclosed a drug delivery device, comprising a housing (10), a driving mechanism (20), a first limiting structure (30), an injection mechanism (40), and a transmission mechanism (50). The driving mechanism (20) comprises an adjusting member (21), a first memory (22), and a second memory (23). When the driving mechanism (20) is in an adjusting state, the adjusting member (21) drives the second memory (23) to move between an initial position and a final position. When the driving mechanism (20) is in a delivery state, the adjusting member (21), the first memory (22), and the third memory (23) are relatively stationary. One of a first limiting member (31) and a second limiting member (32) of the first limiting structure (30) is disposed on the first memory (22), and the other of the first limiting member (31) and the second limiting member (32) is disposed on the second memory (23). The first limiting member (31) cooperates with the second limiting member (32) to limit the movement of the second memory (23) with respect to the first memory (22) when the second memory (23) is at the final position. The delivery device can solve the problem in the related art that it is difficult to prevent a set dose from exceeding the remaining dose in a medicine bottle.\nB: A scroll compressor (100) comprises a scroll compressor shell (1); a static scroll plate (3), wherein the static scroll plate (3) is fixed inside the scroll compressor shell (1); a rack (2), wherein the rack (2) is mounted inside the scroll compressor shell (1); an orbiting scroll plate (4), wherein the orbiting scroll plate (4) can be movably supported on the rack (2) and in joint with the static scroll plate (3); and an actuating mechanism (6), wherein the actuating mechanism (6) is fixed at a lower end of the scroll compressor (100) and connected to the orbiting scroll plate (4) so as to drive the orbiting scroll plate (4) to rotate. A first joint component (41) is arranged on the orbiting scroll plate (4) and a second joint component (31) is arranged on the rack (2) inside the scroll compressor (100) or the static scroll plate (3), wherein the first joint component (41) and the second joint component (31) are mutually matched so as to prevent the orbiting scroll plate from rotating in a period when the scroll compressor operates normally. The scroll compressor makes it easy to control a processing precision and a matching precision of the orbiting scroll plate and the static scroll plate, reduces costs and improves performance of the compressor.\nC: An electronic expansion valve, comprising: valve body (10), the valve body (10) having a valve port; a valve head (20) movably provided in the valve body (10), the valve head (20) being used for blocking the valve port; a rod-shaped member (30), the rod-shaped member (30) having a first end and a second end opposite to each other, the first end penetrating into a cavity of the valve head (20), the second end having a positioning structure (31), the positioning structure (31) being used for positioning the circumference of the rod-shaped member (30), the positioning structure (31) being a positioning plane, and the positioning plane being parallel to the axis of the rod-shaped member (30); a valve sleeve (41) provided in the cavity of the valve head (20), the first end of the rod-shaped member (30) being fixedly connected to the valve sleeve (41), and the valve sleeve (41) being in limiting fit with the valve head (20); and an elastic member (42) provided in the cavity of the valve head (20), one end of the elastic member (42) matching the valve head (20), and the other end of the elastic member (42) being compressible by the rod-shaped member (30).\nD: A handle assembly and an anastomat comprising same. The handle assembly comprises: a first handle member provided with a sliding slot (41), a first sliding block (42) being slidably provided in the sliding slot (41), one end of the sliding block (42) being provided with a first limiting structure (43), a second section (412) of the sliding slot (41) being provided with a second limiting structure (44), and a compression spring (45) being provided between the two limiting structures (43, 44); and a second handle (2), a first end of the second handle (2) being rotatably connected to the first handle member, and the sliding block (42) moving toward the second section (412) of the sliding slot (41) under external force. When the first handle member is rotated in a first direction, the compression spring (45) is deformed, and the sliding block (42) abuts against the second handle (2) and pushes the second handle (2) to rotate; and when the sliding block (42) is released from the external force, the compression spring (45) pushes the sliding block (42) to reset. According to the handle assembly, a handle is divided into the first handle member and the second handle (2), and the linkage state of the two is controlled according to the moving position of the sliding block (42); the sliding block (42) may be reset under the action of the compression spring (45) after being released from the external force, and the position of the compression spring (45) is limited by means of the first limiting structure (43) of the sliding block (42) and the second limiting structure (44) of the first handle member.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is an oil and gas separation device for an internal combustion engine, comprising a first cavity (10), a second cavity (11) and a third cavity (12), which are arranged in the longitudinal direction. The first cavity (10) communicates with the second cavity (11) via a first gas passage (13). The second cavity (11) communicates with the third cavity (12) via a second gas passage (14). An outlet pipe (6) is communicated to the third cavity (12). A bottom of the first cavity (11) is in communication with an internal combustion engine body (5), and a lower oil baffle plate (4) is arranged between the bottom of the first cavity (10) and the internal combustion engine body (5). The lower oil baffle plate (4) longitudinally covers the first gas passage (13). By using the internal combustion engine oil and gas separation device, the speed and effect of oil and gas separation can be improved.\nA: A safe medicinal liquid transfer device, comprising a main body (1) and a connecting member lower cover (2), a needle-shaped body (3) provided on the main body (1), and a gas channel (31) and a liquid channel (32) provided in the needle-shaped body (3), separately; an exhaust cavity (11) communicated with the gas channel (31) is provided in the main body (1), and communicated with the atmosphere by means of a breathable water blocking film body (12); a cavity (4) is provided between the main body (1) and the connecting member lower cover (2), and communicated with the liquid channel (32); the connecting member lower cover (2) is provided with a connection portion (21) connected to a syringe; a sealing structure (5) is provided at the connection portion (21); the sealing structure (5) is deformed as pressure is applied to the syringe, allowing for communication between the syringe and the cavity (4). According to the safe medicinal liquid transfer device, a clinical pharmacist can perform medicine dispensing and dosing operations simply and safely. The exhaust design comprising the exhaust cavity (11) and the breathable water blocking film body (12) allows for efficient balance of the air pressure inside and outside a container. The further inclusion of a sealing structure (5) allows for a closed design, effectively preventing the medicinal liquid from spraying out. The invention thus prevents the waste of medicines, and protects the safety of the pharmacist.\nB: An internal combustion engine with a particle charging device, comprising an internal combustion engine body, and an air inlet particle charging device, a fuel particle charging device, a high-voltage power supply and a high-voltage power supply start-stop controller that are provided in the internal combustion engine body. The air inlet particle charging device is provided at the end in the internal combustion engine body close to an engine inlet port and comprises a circular silicone air inlet pipe and a first particle charging device provided in the middle of the interior of the circular silicone air inlet pipe; and the fuel particle charging device is connected between a first oil pipe and a second oil pipe in the internal combustion engine body in series and comprises a metal cavity and a second particle charging device provided in the middle of the metal cavity. According to the internal combustion engine, the problems that the internal combustion engine is high in oil consumption, low in power, prone to engine oil combustion, overproof in tail gas emission and difficult to start and shakes due to carbon deposition can be reduced and eliminated.\nC: Disclosed is a filter-plate self-adaptive pressure adjustment oil-gas separation device for an engine. The device comprises a filter-pore separation device and a primary separation device, which are arranged in a mounting slot (101) in a cylinder head cover (100), wherein the mounting slot (101) is provided with a gas inlet hole (102) for receiving an oil-gas mixture in a crankcase; the mounting slot (101) is further provided with an exhaust hole (103) for discharging the separated exhaust gas; and the cylinder head cover (100), the filter-pore separation device and the primary separation device are combined to form a bent oil-gas channel. The filter-plate self-adaptive pressure adjustment oil-gas separation device for an engine can accelerate the oil-gas mixture, and the separated oil droplets flow out through an oil return chamber, thereby having a high separation efficiency and meeting the China VI Engine Emission Standards.\nD: A burner (100) and a gas cooker. The burner (100) comprises a bottom tray (10) as well as a flamer (30) and a nozzle holder (20) provided on the bottom tray (10). The bottom tray (10) is provided with a primary air cavity (13). A first primary air opening is provided in the top of the primary air cavity (13), and a cavity through hole (132) is provided in the side wall as a second primary air opening. The flamer (30) comprises an outer annular cavity (31) and an inner annular cavity (32). The bottom tray (10) is provided with a first ejection channel (101). The outer annular cavity (31) is provided with an outer gas mixing cavity (341) to which a mixed gas is supplied by the first ejection channel (101). The inner annular cavity (32) is provided with an inner gas mixing cavity (342) and is connected to a second injection channel (37), and the mixed gas of the inner gas mixing cavity (342) is supplied by the second injection channel (37). A gap (301) communicated with the air inlet of the second ejection channel (37) is formed between the outer annular cavity (31) and the bottom tray (10). A primary air channel (302) communicated with a first primary air inlet is formed between the outer annular cavity (31) and the primary air cavity (13).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA fuel rail assembly and internally-installed damper holders for same, said fuel rail assembly comprising a fuel rail, a first and a second plug used for sealing same, internally-installed dampers, and a first holder and a second holder for said dampers; the internally-installed dampers are provided each with a first and a second end portion, said first and second end portions comprising each a main body having an uplifted portion upon same. The holders comprise: clamping portions provided with gaps, and a first and a second fixing portion fixedly connected by means of a first and a second flexible portion to the clamping portions respectively. The first and the second holders for the internally-installed dampers are held in place by the first and second plugs respectively, and the main bodies of the first and second end portions of the internally-installed dampers are contained within the gaps of the first holder and the second holder respectively of the dampers, thus inhibiting movement of the internally-installed dampers in a first and a second directions; meanwhile the uplifted end portions are blocked within the clamping portions, thus inhibiting movement of the internally-installed dampers in a third direction. Said dampers are thus fixed steadily within the fuel rail.\nA: A new-type damping device for a #-shaped building. The damping device comprises a first building beam (1), a second building beam (2), a third building beam (3) and a fourth building beam (4). The first building beam (1), the second building beam (2), the third building beam (3) and the fourth building beam (4) are arranged to be in a #-shaped structure. By means of the arrangement of a viscoelastic damper (12), under the effect of the viscoelastic damper (12), a fixing plate (13) drives a polymer damping layer (16) on a sliding plate (14) to shake left and right in a hysteresis groove in a restraining frame (15), and energy is dissipated by shearing hysteresis deformation of the polymer damping layer (16), such that the #-shaped structure composed of the first building beam (1), the second building beam (2), the third building beam (3) and the fourth building beam (4) has energy dissipation and shock absorption functions in the left-right direction. By means of the arrangement of a viscous fluid damper (9), the #-shaped structure composed of the first building beam (1), the second building beam (2), the third building beam (3) and the fourth building beam (4) has the energy dissipation and shock absorption functions in the front-back direction.\nB: Disclosed is a buffering hinge, comprising a first clamping plate and a second clamping plate; the first clamping plate and/or the second clamping plate is internally provided with a buffering mechanism; the buffering mechanism comprises a fixed pressing block, a moving pressing block which moves along the vertical direction, and a vertically-positioned damper, the two ends of the damper being respectively vertically connected to the fixed pressing block and the moving pressing block; a first inclined surface of the moving pressing block and a second inclined surface of the other clamping plate form an opposing connection. The present invention, by means of arranging a buffering mechanism within the first clamping plate and/or the second clamping plate, and allowing the damper to be subjected to vertical upward action force, thereby increases the buffering effect and the service life of the damper; also, the opposing connection between a first inclined surface of a moving pressing block and a second inclined surface of the other clamping plate allows the moving pressing block and the fixed pressing block to realize vertical movement, thereby driving the damper to achieve vertical lengthening and shortening.\nC: Disclosed is a fuel rail assembly for an engine with direct ethanol-fuel injection via a manifold, comprising a fuel rail main pipe (3), branch pipes (8), rail mounting supports (2), and a joint pipe (7). The cross-section of the interior of the fuel rail main pipe (3) is square-shaped, the branch pipes (8) and the rail mounting supports (2) are provided on one side in the axial direction of the fuel rail main pipe, while the joint pipe (7) is provided at the fuel-inlet end of the fuel rail main pipe (3).\nD: An improved buffering hinge, comprising a housing (1), a first rotational shaft (51), a U-shaped pin shaft (21), a hinge cup (2), a first linkage member (3), a second rotational shaft (52), a torsion spring (4), and a second linkage member (5), the hinge cup (2) being fixed onto a door panel. A damper guide member comprises a guide rack (6) provided between the second linkage member (5) and the housing (1). The housing (1) is formed by enclosing left and right side plates and an upper side plate (10), and is provided with a damper (8) and the damper guide member. The output direction of a piston rod (82) of the damper (8) is oriented to the upper side plate (10). The hinge effectively reduces its production costs, and overcomes noise generated by the friction between parts and the defect in the overall rotating smoothness of a product, thereby improving the overall quality and the market competitiveness of the product.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA gas cylinder assembly and a compressor having said gas cylinder assembly. The gas cylinder assembly comprises a cylinder body (1), a valve assembly (2), a cylinder cover (3), a noise muffler (8), and a press cover (5); the valve assembly (2) is arranged within the cylinder body (1), a seal ring (4) is provided between the cylinder cover (3) and the valve assembly (2), the noise muffler (8) and the cylinder cover (3) are integrally formed, the press cover (5) is connected to the cylinder body (1), and the cylinder cover (3) is located between the cylinder body (1) and the press cover (5), so as to facilitate the press cover (5) in fixing the cylinder cover (3) onto the cylinder body (1). The present gas cylinder assembly has unique advantages such as a good sealing effect, a low number of parts, low manufacturing difficulty and costs, and no deformation of the cylinder cover and the cylinder body.\nA: An end cover assembly, an air cylinder, a tread sweeper and a railway vehicle. The end cover assembly (100) is used for sealing an air inlet end of an air cylinder (200) of a tread sweeper (300), and comprises a cylinder cover (110), wherein a first external thread column body (111) extending and protruding is arranged on an inner side end face (110a) of the cylinder cover (110), and is mounted matching the air cylinder (200); a second external thread column body (112) extending and protruding is arranged on an outer side end face (110b) of the cylinder cover (110); and the cylinder cover (110) is provided with a through mounting hole (113), and the mounting hole (113) extends to penetrate the first external thread column body (111) and the second external thread column body (112) and is used for arranging an air core (230) and an elastic pull rod (240); and a gland (120), wherein a threaded hole (121) matching the second external thread column body (112) is provided on an inner side end face (120a) of the gland (120); a throttle air vent hole (122) is provided between the threaded hole (121) and an outer side end face (120b) of the gland (120); a first mounting groove (123) is further provided between the inner side end face (120a) of the gland (120) and the threaded hole (121); and in an assembled state, the inner side end face of the gland (120) abuts against the outer side end face (110b) of the cylinder cover (110), and sealing is provided by means of sealing rings (130, 140 and 150) arranged inside the first mounting groove (123).\nB: Disclosed are a cylinder head assembly, a compressor and a refrigeration device. The cylinder head assembly comprises a cylinder seat (1), which is provided with a cylinder hole (11) and an exhaust silencing cavity (12), wherein an annular boss (13) is arranged at the end, having the cylinder hole (11), of the cylinder seat (1), a first mounting face (14) is formed on an end face of the annular boss (13), a first exhaust throttling through hole (15) is provided in the first mounting face (14), the first exhaust throttling through hole (15) is in communication with the exhaust silencing cavity (12), and an outer circle face of the annular boss (13) is not coaxial with the cylinder hole (11) and is offset in the direction where the first exhaust throttling through hole (15) is located; cylinder head parts (4), wherein an edge of the cylinder head part (4) is provided with a protrusion (44), and the protrusion (44) is provided with a second exhaust throttling through hole (45) corresponding to the first exhaust throttling through hole (15); and a cylinder cover (5), which is provided with a first cylindrical mounting groove (51) and a second cylindrical mounting groove (52). The compressor comprises the cylinder head assembly, and the refrigeration device comprises the compressor. The cylinder head assembly, the compressor and the refrigeration device have the advantages of a columnar cylinder head being miniaturized and low cost, and also the process difficulty of exhausting air from a cylinder cover of a traditional columnar cylinder head design is avoided, and material costs are saved on.\nC: A high-pressure gas compression ignition engine, comprising a cylinder body (1), a piston (2) and a cylinder cover (3), the piston (2) being mounted on the cylinder body (1) and the cylinder body being sealed by the cylinder cover (3) to form a combustion chamber (4) for fuel operation, and an intake valve (5) and an exhaust valve (6) being respectively provided on the cylinder cover (3). The engine further comprises: a fuel supply system (7), the fuel in a fuel tank (70) of the fuel supply system passing through a fuel channel, being pressurized by a pump body (71) and being then supplied into the combustion chamber (4) of the cylinder body (1); a fuel injection device (8) used for injecting the fuel to the intake valve (5); and a compression ignition system (9), which is connected to an exhaust duct or an external gas source, recovers some of exhaust energy discharged from the combustion chamber (4) during a power stroke or suctions into the external gas source, and compresses and stores same in a compression ignition gas storage tank (91), the cylinder cover (3) is provided with a compression ignition gas valve assembly (92) for compression ignition of the fuel injected in the combustion chamber (4). The high-pressure gas compression ignition engine pressurizes the discharged gas energy or the external gas source into a high-pressure gas, which is not limited by the knock resistance property of a fuel. The present invention is used for automatic compression ignition in the combustion chamber, reduces fuel consumption and pollution, and effectively increases the compression ratio and improves the dynamic property.\nD: A rotary engine consists of: an elliptic cylinder body (1) and a front cylinder cover (2) and a rear cylinder cover (3) fixed to the cylinder body (1). A separating plate (4) is provided at the centre of the cylinder body (1), which divides the elliptic cylinder body (1) into two approximately semicircular cavities (5, 6), and in the radially symmetric centre line of each of the semicircular cavities there is provided a synchronically rotatable gear shaft (7, 8), respectively; the two gear shafts (7, 8) are supported on the front and rear cylinder covers (2, 3) via a bearing, elliptic gear ring pistons (9, 10) internally meshing with the gear shafts (7, 8) are mounted on the two gear shafts (7, 8), respectively; an inlet valve, an exhaust valve, a gas reserve barrel, and a combustion chamber are provided on the separating plate (4), and an oil nozzle and a sparking plug are provided in the chamber. The present engine has a compact structure, few parts, a small volume, a reduced weight, good sealing, a high working efficiency, and easy maintenance, solving problems present in prior art engines, such as unreasonable structural design, complicated structure, and low efficiency, etc. Engines, and also hydrodynamic machinery such as liquid pumps, hydraulic motors, and air compressors, etc., can be obtained by changing the inlet and exhaust structures.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA piston type industrial pump comprises a power device (1), a pumping device (2) and a stirring device (3). A connecting pipeline is arranged between the power device (1) and the pumping device (2); the pumping device (2) is fixedly connected with the stirring device (3); the power device (1) consists of at least two power units connected in parallel; the power units comprises hydraulic oil tanks (101), motor oil pump sets (102), and a power unit base (103); and a communicating oil pipe (104) is arranged between the hydraulic oil tanks (101) of the power units. There are at least two groups of motor oil pump sets (102) provided in each power unit. Two or more power units are connected in parallel for providing superimposed power, so that the flow of a hydraulic system can meet a large-volume conveying requirement; in the meantime, all the power units are independent of each other and can work together in parallel or work independently; when one of the power units is fails, only the faulty unit is stopped for maintenance, and the other power units continuously provide power output and are spare to each other.\nA: An unmanned aerial vehicle (100), comprising a vehicle body assembly (1), vehicle arm devices (2) and power devices (3). There are two vehicle arm devices (2) respectively located at two opposite sides of the vehicle body assembly (1), the two length ends of each vehicle arm device (2) are respectively an inner end (21) and an outer end (22), the inner end (21) of the vehicle arm device (2) is mounted on the vehicle body assembly (1), the vehicle arm device (2) is arranged obliquely upwards from the inner end (21) to the outer end (22), an included angle between each vehicle arm device (2) and a horizontal plane is 9-35 degrees, and one power device (3) is respectively mounted at the outer end (22) of each vehicle arm device (2). Each of the power devices (3) comprises a power unit (31), the power unit (31) comprising a power motor (311) and a propeller (312).\nB: An unmanned aerial vehicle (100), comprising: a fuselage assembly (1), the fuselage assembly comprising a storage device (11); vehicle arm devices (2), the number of the vehicle arm devices being two, the vehicle arm devices being located on two sides of the fuselage assembly respectively, two ends of the length of each vehicle arm device being an inner end and an outer end respectively, and the inner ends of the vehicle arm devices being installed on the fuselage assembly; and power devices (3), one power device being mounted on the outer end of each vehicle arm device, each power device comprising a power unit (31), and each power unit comprising a power motor (311) and a propeller (312) installed on the power motor. A lifting force generated by the two power devices is coplanar to form a preset plane (S3), and the preset plane passes through the storage device.\nC: A leaf spring vibration hydraulic power generation system, comprising a generator (2), a power unit (4) which provides power, and a transmission unit, which transmits power and converts same into torque, wherein the generator (2) comprises a rotor and a storage battery, which forms an excitation magnetic field; the power unit (4) and the transmission unit make the rotor of the generator (2) rotate; the rotor cuts the excitation magnetic field formed by the storage battery; and after the rotation speed of the rotor gradually increases until the voltage of the generator is higher than that of the storage battery, the generator (2) reversely charges the storage battery, and provides electric energy for other electronic apparatuses. By using an oil fluid in an oil tank and the vibration of a vehicle, a hydraulic motor (35) is driven by means of the power unit (4) and the transmission unit, thereby providing power for the generator (2), and supplying power to electronic devices of the entire vehicle and the storage battery, such that the problem of existing generators consuming the energy of an engine can be better alleviated, and the problem of the short driving range of an electric vehicle is alleviated.\nD: Disclosed is a pumping system for a piston-type mortar pump. The pumping system comprises a delivery cylinder (3) with a delivery piston (31) and a piston rod arranged therein, wherein the piston rod is connected to a power apparatus of the pumping system, and a rodless chamber (33) of the delivery cylinder (3) is in communication with a material inlet (102) via a unidirectional intake valve (41). The pumping system also comprises a compensation cylinder (5) with a compensation piston (51) arranged therein, wherein the compensation piston (51) separates the compensation cylinder (5) into an out-feed chamber (52) and a buffer chamber (53), the out-feed chamber (52) is in communication with the material outlet (101), the rodless chamber (33) of the delivery cylinder (3) is in communication with the out-feed chamber (52) via a unidirectional out-feed valve (42), and the buffer chamber (53) is in communication with a rod chamber (32) of the delivery cylinder (3) to form a sealed chamber. In this way, when the delivery cylinder (3) is in a material intake stroke, matter stored in the compensation cylinder (5) is discharged via the material outlet (101), thus while taking in material, the pumping system can discharge material, thereby improving the pumping continuity of the pumping system and ensuring continuous operation of the piston-type mortar pump.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA concrete pumping device and control method and device thereof, the control method of the concrete pumping device comprising: when a first pumping of a concrete pump is activated, detecting the preset pumping status of the first pumping of the concrete pump; if the preset pumping status of the first pumping is low pressure pumping, then detecting whether the working parameter of a second pumping is greater than a preset working parameter and/or detecting whether the material supply delay time of the concrete pump is greater than a preset material supply delay time value, wherein the second pumping is the previous pumping of the first pumping; if the working parameter is greater than the preset working parameter and/or the material supply delay time of the concrete pump is greater than the preset material supply delay time value, then controlling the concrete pump to switch from low pressure pumping to high pressure pumping; and after the concrete pump works in the high pressure pumping state for a first preset time, controlling the concrete pump to switch from high pressure pumping to low pressure pumping. The pumping device and the control method and device thereof can properly control the concrete pump when the pumping is activated.\nA: A pump stroke control method for a twin-cylinder pump for viscous materials, comprising the following steps: first, determining, according to predetermined condition parameters for a viscous material to be conveyed, a target pump stroke for a twin-cylinder pump for viscous materials corresponding to said parameters; second, by means of adjusting the volume of hydraulic oil in a through-cavity (5 ) of the twin-cylinder pump for viscous materials, adjusting the actual pump stroke (L) of said pump to said target pump stroke. Also provided is a pumping device for viscous materials. The present pump stroke control method is able effectively to implement stepless adjustment of the pump stroke of twin-cylinder pumps for viscous materials, thus allowing the materials-conveying cylinder to avoid a situation of insufficient materials uptake, and thereby increasing pump uptake efficiency while saving energy. The pumping device is structurally simple and easy to operate, and, by reducing the number of invalid strokes of the conveying piston, extends the service life of same.\nB: A status monitoring and fault diagnosis system for concrete pumping equipment, comprising a boom sensor assembly (210) installed on the boom for monitoring the operation status of the boom and acquiring a signal, a chassis sensor assembly (220) installed on a chassis (101) for monitoring the operation status of the chassis (101) and acquiring a signal, a hydraulic system sensor assembly (230) installed on a hydraulic system for monitoring the operation status of the hydraulic system and acquiring a signal, a status monitoring unit (310) for analyzing and processing the signals acquired by each sensor assembly so as to monitor the condition of the concrete pumping equipment on line, and a fault diagnosis unit (320) connected with the status monitoring unit (310) for predicting and diagnosing the fault of the concrete pumping equipment. The status monitoring and fault diagnosis system for concrete pumping equipment can comprehensively monitor the operation status and diagnose the fault of the boom, the chassis and the hydraulic system, thus improving the overall performance of the concrete pumping equipment.\nC: Provided in the present invention are a concrete ultra-high pumping simulation verification apparatus and method, belonging to the technical field of concrete ultra-high pumping, and being used for verifying the accuracy of a concrete ultra-high pumping simulation model; comprising a testing pipeline connected to the end of a concrete pumping pipe by means of a flange butt joint, and also comprising a rotating impeller system mounted vertically on the inner wall of a vertical pipeline, the rotating impeller system comprising a rotating blade and a rotating shaft arranged in a matched manner, the other end of the rotating blade being provided with a measurement control system, the rotation speed of the blade rotation being measured by means of the measurement control system, and the plastic viscosity and yield stress of the concrete being calculated on the basis of a set fitting formula. Thus, the present apparatus does not require a device such as a pressure sensor to be mounted on the pumping pipe, and can simply and conveniently measure the rheological parameters of the concrete during the concrete pumping process without damaging the safety of the pumping pipe.\nD: A wobbler mechanism is used for driving a distributing valve of a concrete pumping device to wobble, and comprises a wobbling arm (6) for driving the distributing valve, and two hydraulic oil cylinders (2, 4) for driving the wobbling arm (6) to wobble from side to side. One end of each of the two hydraulic oil cylinders (2, 4) is connected to left and right sides of the wobbling arm (6), and the hydraulic oil cylinders (2, 4) are two-stage hydraulic oil cylinders (2, 4). Also disclosed is a concrete pumping device having the wobbling mechanism. The wobbling mechanism and the concrete pumping device having the wobbling mechanism is fast in direction change and has a low impact, so that the direction change time of the wobbling mechanism is close to that of a master cylinder of the concrete pumping device, thereby greatly improving pumping continuity.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA mute powerful bladeless fan, comprising an air guiding member (2). The air guiding member (2) is formed by connecting an air gathering cover (22) and an air outlet cover (21) in a covering mode; through holes (23) which are coaxial are formed in the bottom surfaces of the air gathering cover (22) and the air outlet cover (21), respectively; the edge of the through hole (23) in the bottom surface of the air gathering cover (22) arches inwards in an axial direction so that the connection surface between the edge of the bottom surface of the air gathering cover (22) and the edge of the through hole (23) can form an annular fall slope (221) in smooth transition; the edge of the through hole (23) in the bottom surface of the air outlet cover (21) extends inwards in the axial direction to form a flange (212); an air blocking edge (213) is provided on the periphery of the flange (212) in a circle; air outlets (211) are evenly formed between the flange (212) and the air blocking edge (213); the edge of the through hole (23) of the air gathering cover (22) is in sealed butt joint with the flange (212); the axes of the through holes (23) are deflected to the upper portion of the air guiding member (2), so that an annular air channel (24) having a section gradually reduced from bottom to top is formed in the air guiding member (2); and an air inlet (25) communicated with the air channel (24) is formed in the lower end of the air guiding member (2).\nA: A two-channel air-cooled small gasoline generator, comprising a case (1), an engine assembly (2), a silencer (3) and a magneto assembly (4) with a fan, wherein the engine assembly (2), the silencer (3) and the magneto assembly (4) are arranged in the case. The gasoline generator further comprises: a first air guiding hood (21), arranged on the engine assembly (2) in a coating mode; an air duct (32), one end of the air duct being connected to the first air guiding hood (21), and the other opposite end of the air duct being communicated with the outside; a second air guiding hood (31), arranged on the silencer (3) in a coating mode and provided with an air outlet (311) communicated with the outside; and a third air guiding hood (41), arranged on the magneto assembly (4) in a coating mode and further communicated with the second air guiding hood (31). In the generator, the engine is cooled at high efficiency, thermal power attenuation of the engine is effectively reduced, and the output of the magneto is efficient; accordingly, high-efficiency operation of the generator is guaranteed, and a good noise isolation effect is achieved with the sealed air duct.\nB: An air outlet assembly, comprising: a panel (10), an air outlet (11) being arranged on the panel (10); and an air guide part (20), mounted on an air inlet side on the panel (10), an air guide channel being formed in the air guide part (20), and the air guide part (20) having an air guide inlet (21) and an air guide outlet (24), which are connected to the air guide channel, formed thereon, the air guide outlet (24) also being connected to the air outlet (11). By means of said air outlet assembly, dew is prevented from forming on a side of the panel close to the interior of a room or a vehicle. The present invention also relates to an air conditioner and a vehicle.\nC: An air concentration cover (1) and a PM2.5 tester having same. The above-mentioned air concentration cover (1) comprises an air exit portion (11), an air guiding portion (12) and a mounting portion (13) used for being mounted with and connected to a fan (2), wherein the air exit portion (11), the air guiding portion (12) and the mounting portion (13) are integrally formed, and form a cavity (14) in combination for air to pass through, an air outlet (111) is provided on the air exit portion (11), and an air guiding piece (15) for guiding air is provided in the cavity (14). The above-mentioned PM2.5 tester comprises the above-mentioned air concentration cover (1).\nD: A bladeless fan, comprising: a body portion (10), the body portion (10) comprising an air inlet, an air outlet, and a fan motor assembly (5) used for generating an air flow; and a nozzle (7) connected to the air outlet and used for receiving an air flow from the body portion (10) and emitting the air flow. The fan motor assembly (5) comprises: an air outlet base, first positioning seats (501) and first screw lugs (508) being provided around the periphery of the air outlet base; a motor support (54), a motor (56) being provided between the motor support and a first side of the air outlet base, and second positioning seats (541) being provided around the periphery of the motor support (54); and an air guide cover (52), a rotary impeller (53) being provided between the air guide cover and a second side of the air outlet base, and third positioning seats (521) and second screw lugs (522) being provided around the periphery of the air guide cover (52). The air outlet base is in screw connection with the air guide cover (52). Each second positioning seat (541) of the motor support (54) is clamped and limited between the first positioning seat (501) and the third positioning seat (521) after being connected to the first positioning seat (501) and the third positioning seat (521) by means of a flexible connector. The bladeless fan can change the movement direction of the air flow in the fan, reduce the overall height of the fan, and reduce the overall volume.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn intelligent adjustable high-pressure pump station system, comprising an oil tank (1), energy accumulators (2), and oil pumps. The oil tank (1) is connected to at least two oil pumps by means of pipelines; an energy accumulator (2) is connected between every two adjacent oil pumps by means of pipelines; a one-way valve is provided on a pipeline at an oil outlet of the oil tank; and a one-way vale is separately provided on an oil inlet pipeline and an oil outlet pipeline of each energy accumulator (2). When hydraulic pumps form a pump station system, multiple oil pumps are connected in series for use, and energy accumulators are combined, so that ultrahigh pressure can be produced; the intelligent adjustable high-pressure pump station system is safe and reliable, and is stable in operation.\nA: A floating turnover hydraulic power output device, comprising a buoy (1), an outer frame support (2), a base (35, 36), a power turnover mechanism (27), and a hydraulic actuator (41); the upper end and lower end of the buoy (1) are respectively provided with an upper connecting rod (5) and a lower connecting rod (6) respectively connected with the pistons (7, 8) of two hydraulic cylinders (3, 4) on the upper part and lower part of the outer frame support (2); the oil inlets and outlets of the hydraulic cylinders (3, 4) are respectively installed with one-way valves (13, 14, 15, 16); the one-way valves (13, 14, 15, 16) are respectively connected to a hydraulic oil tank (40) and a high pressure accumulator (42) via high pressure oil pipes (17, 18); the outer frame support (2) is a permeable structure; a rotary shaft (23, 24) is installed in the middle of the outer frame support (2), and is slidably connected to the outer frame support (2); and the power turnover mechanism (27) is connected to the rotary shaft (23, 24). The device can continuously and circularly rotate around the rotary shafts under a small external force, and can release the buoy during the rotation to convert buoyancy potential energy into hydraulic energy. The combined use of multiple sets of the devices can continuously force hydraulic oil into a high pressure accumulator for direct use.\nB: A hydraulic system, which comprises: an accumulator (7), a hydraulic cylinder (6) including a rod cavity (62) and a rodless cavity (61), a hydraulic pump (5), an oil tank (4), a first valve assembly (1) and a second valve assembly (2). The first valve assembly comprises a first port (f) connected to the rodless cavity, a second working port (d) connected to the rod cavity, a third port (a) connected to the hydraulic pump, and a fourth working port (c) connected to the oil tank, and has a first working state in which the first working port and the third working port are connected; the second valve assembly comprises a first port (g) connected to the rodless cavity, a second working port (h) connected to the rod cavity, a third port (i) connected to the accumulator, and has a first control state in which the first working port, the second working port and the third working port are all connected, and the hydraulic system can improve the energy recovery efficiency of the accumulator.\nC: An electro-hydraulic system for driving a large-scale rotary motion valve supplied by a solar low-capacity power. A step motor (2) and an oil pump (3) are in turn driven by a low-capacity solar power supply (1). An oil tank (5), the oil pump, a check valve (6), a T-connector (7) and a liquid accumulator (10) are in turn arranged on an oil storage pipeline (4). An oil inlet pipeline (16) is connected to the rest of the ports of the T-connector. An oil inlet of a three-position four-way reversing solenoid valve (12) is connected to the oil inlet pipeline. Two ends of an oil return pipeline are connected to an oil return port of the reversing valve and an oil return port of the oil tank, respectively. Each of two oil outlets of the reversing valve is respectively connected to an oil port of a single-chamber cylinder via a pipeline. The outer ends of the piston rods of cylinders A and B are rigidly connected together to form one piston rod (134). A linear-to-rotary transition mechanism is provided between the piston rod (134) and a spool (19) of the rotary motion valve. Since the low-capacity solar power supply is adopted in the system, the equipment cost, the operation cost and the maintenance cost of the system are reduced, and the input-output ratio of the system is increased.\nD: Disclosed is a lubricating grease delivery system of a coal mine rail transportation vehicle, comprising an oil reservoir (1) and an oil pump (2). An outlet pipeline of the oil pump (2) is divided into two branches via a T joint, wherein an electromagnetic reversing valve (3), a manual three-position four-way reversing valve (5) and an energy accumulator (4) are connected in sequence on one branch, inlet and outlet pipelines of the manual three-position four-way reversing valve (5) are connected with a composite hydraulic cylinder  a , and the front part of the composite hydraulic cylinder  a  is connected with a grease reservoir (6);a first one-way speed control valve (9) and a three-position four-way electromagnetic reversing valve (10) are arranged in sequence on the other branch, and inlet and outlet pipelines of the three-position four-way reversing valve (10) are connected with a composite hydraulic cylinder  b ; a lubricating grease outlet of the composite hydraulic cylinder  a  is connected with a one-way valve bridge (8) through a pipeline, and pipelines on two sides of the one-way valve bridge (8) are respectively connected to a lubricating grease inlet and a lubricating grease outlet of the composite hydraulic cylinder  b ; and two limiters for limiting the travel of a piston rod are arranged at the front part of the piston rod of the composite hydraulic cylinder  b . The lubricating grease delivery system completes the delivery of lubricating grease by means of alternating operations of the two composite hydraulic cylinders, and has the characteristics of small size, high pressure, high flow rate and stable operation.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a cylinder, comprising a cylinder block (1), a first piston (2) and a second piston (3), the first piston (2) and the second piston (3) being arranged in the cylinder block (1), and the first piston (2) and the second piston (3) being arranged at an interval. The cylinder (1) further comprises a first telescopic shaft (4) and a second telescopic shaft (5), wherein the first telescopic shaft (4) penetrates through the cylinder block (1) and is connected to the first piston (2), and the second telescopic shaft (5) slidably penetrates through the first telescopic shaft (4) and is connected to the second piston (3). Further disclosed is an absorption and separation device having the cylinder. The cylinder and the absorption and separation device having the cylinder enable two or more cylinders to share one cylinder block, so as to respectively control two or more pistons and telescopic shaft, such that the control directions and strokes are relatively independent of each other, the installation space is small, and the costs are low.\nA: A hydraulic cylinder, a hydraulic system, and a crane. The hydraulic cylinder comprises a cylinder body (1), a first piston (2), and a piston rod (3). The first piston (2) is disposed in the cylinder body (1), and can move in the axial direction of the cylinder body (1). One end of the piston rod (3) is connected to the first piston (2), and extends in the axial direction of the cylinder body (1). The cylinder body (1) is provided with a first cavity (5) located on one side of the first piston (2) back to the piston rod (3), the first cavity (5) can introduce and discharge a hydraulic fluid. The piston rod (3) is provided with a second cavity (6) extending in the axial direction of the cylinder body (1). The hydraulic cylinder also comprises a second piston (7) capable of moving along the second cavity (6). The second piston (7) is fixed relative to the cylinder body (1), and the second cavity (6) comprises an accommodating cavity (4) located on one side of the second piston (7), facing to the first piston (2). When the hydraulic fluid is introduced into the first cavity (5), the accommodating cavity (4) can discharge the hydraulic fluid; and when the first cavity (5) discharges the hydraulic fluid, the accommodating cavity (4) can introduce the hydraulic fluid. The technical solution in the present application alleviates the problem in the prior art of high variation of the hydraulic fluid in the hydraulic cylinder in the moving process of the piston rod (3).\nB: A fluid pressure-driven press-riveting device (100), comprising: a cylinder block (101) having a distal cylinder cap (112), a proximal cylinder cap (111), and a sidewall (113) extending along an axial direction therebetween, the distal cylinder cap having an opening part (114); a first piston (102) in the cylinder block, which defines a first inner cavity (121) together with the proximal cylinder cap, and has a press-riveting rod (122) extending towards the distal end and aligned with the opening part; a second piston (103) in the cylinder block, which defines a second inner cavity (131) together with the distal cylinder cap, and has a sleeve part (132) extending towards the distal end to at least reach and seal the opening part and capable of accommodating the press-riveting rod; a fluid pump system (105) separately connected to the first inner cavity and the second inner cavity so as to supply fluid therefor or suck back fluid therefrom, so that the first piston and the second piston move along the axial direction of the cylinder block, the sleeve part moves to a pre-pressed location when the second piston moves to the distal end, and then the press-riveting rod extends out to perform press-riveting; and a transmission component disposed between the first piston and the second piston, once the sleeve part moves to the pre-pressed location, the first piston being capable of getting close to the second piston and applying a pre-pressing force thereon by means of the transmission component. The press-riveting device is suitable to be operated in a small working space.\nC: Disclosed is an energy conversion system, comprising a base seat (1), a rotation shaft (2) and an energy conversion device (23). The rotation shaft is fixedly connected to the base seat, and the energy conversion device is provided on the rotation shaft. The energy conversion device comprises a first cylinder (3) and a second cylinder (4), and a first piston (5) fitted to the first cylinder and a second piston (6) fitted to the second cylinder. The first piston and the second piston share a common piston rod (7). The first cylinder and the second cylinder are fixedly connected to each other and are in communication with each other via an air pipe (8). The piston rod is provided with a position limiting device. Furthermore, a buoyancy propelling device (24) is provided on the outside of the piston rod. The piston rod is adapted to the buoyancy propelling device so as to enable the piston rod to move the first piston and the second piston. Further disclosed is an energy conversion method. The energy conversion system and the energy conversion method drive the energy conversion device to rotate by using buoyant energy, and thus convert the buoyant energy into kinetic energy for people to use.\nD: A compressor having a sliding valve having the position adjusted automatically, and an air-conditioning system. The compressor comprises: a rotor pair (1) having an air suction end and an exhaust end, a closed tooth groove being provided between the intake end and the exhaust end; a sliding valve (2) capable of sliding relative to the rotor pair (1) and provided with a first through hole (21) in communication with the closed tooth groove; a first cylinder (3), wherein a first piston (31) thereof is connected to a first end of the sliding valve (2) by means of a first connecting rod (33) of the first cylinder (3); a first air pressure channel (32) is provided in the first piston (31), the first connecting rod (33), and the sliding valve (2); one end of the first air pressure channel (32) is in communication with the first through hole (21), and the other end is in communication with the interior of the first cylinder (3); and a fourth cylinder (4), wherein a second piston (41) thereof is connected to a second end of the sliding valve (2) by means of a second connecting rod (43) of the fourth cylinder (4); a second air pressure channel (42) is provided in the second piston (41), the second connecting rod (43), and the sliding valve (2); one end of the second air pressure channel (42) is in communication with the exhaust end, and the other end is in communication with the fourth cylinder (4); the first piston (31) and the second piston (41) together drive the sliding valve (2) and the rotor pair (1) to slide or be static relative to each other.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA concealed connection structure for profiled beams and columns comprises a profiled column (1), and a profiled beam (2) perpendicularly connected to the profiled column (1). An upper plug (3) and a lower plug (4) are pre-arranged in a T-shaped groove on one side of the profiled column (1). A retractable connection-locking mechanism is arranged in a cavity of the profiled beam (2); said retractable connection-locking mechanism extends into the T-shaped groove on the side of the profiled column (1) and fits to the upper plug (3) and the lower plug (4). The connection structure allows convenient assembly and disassembly, and features high rigidity and stability at the joint.\nA: A connecting structure for an embedment-type composite profile comprises a standing column (1) and a beam (2, 3) which are in forms of thin-wall column bodies formed by staggered embedding of elongated members. The standing column (1) and the beam (2, 3) are vertically connected through a connecting joint (4, 5) which comprises a bottom plate (41, 51) and a lug boss (42, 52). The lug boss (42, 52) is provided with a hole cavity (421,521) along the direction vertical to the bottom plate (41, 51). The lug boss (42, 52) and the beam (2,3) are connected by insertion matching, and the bottom plate (41, 51) and the side wall of the standing column (1) are connected through a fastener. The outer side wall of the standing column (1) is provided with a convex rib (11, 13) along the length direction, and the bottom of the bottom plate (41, 51) is provided with a guide groove (412, 511) capable of being matched by the convex rib (11, 13). The outer side wall of the standing column (1) is also provided with a protrusion (12, 14) propped against the lower edge of the bottom plate (41, 51). By using the vertical connection through the detachable connecting joint (4, 5) and the connection between the bottom plate (41, 51) of the connecting joint (4, 5) and the standing column (1) through a profiled bolt (7), not only a detachable connection can be realized, but also a tight joint between the double side walls of the standing column (1) of the composite structure can be ensured, thus providing a seamless connection between the double side walls of the standing column (1) and remarkably improving the strength and rigidity of the standing column (1).\nB: The present invention relates to a quick-adjusting locking mechanism, comprising a long and hollow profile frame body. The profile frame body is provided with a positioning groove arranged along the axial direction thereof and positions glass. The upper end at one side of the glass is fixedly provided with a locking profile. The locking profile is located in the positioning groove. The top part of the profile frame body is detachably clamped with a cover plate body. The cover plate body and the locking profile are matched and clamped for use in adjusting and positioning the position of the glass on the profile frame body. The present invention is simple in structure and convenient to use. The cover plate body and the locking profile match and are clamped to adjust and position the position of the glass on the profile frame body, and the positional relationship between the glass and the profile frame body may be adjusted according to the actual assembly situation, which has a wide range of applications.\nC: A frame forming structure for use with a frame and sash of an aluminum–wood combined door and window, the door and window at least comprising a door and window frame or a door and window sash and frame: the door and window frame or the door and window sash and frame is formed by connecting adjacent sectional frame bars (1) by means of an angle forming device (2) and a circular tenon rod (3) on adjacent connection end surfaces; connection end surfaces of two adjacent sectional frame bars (1) are manufactured to oppose an end plane of a normal sectional frame bar to assume a 0-60° cross section, respectively, and are mutually connected to form a perpendicular frame edge; the connection end surfaces of the two sectional frame bars (1) are processed to be provided thereon with a symmetrical U-shaped groove (4), which is used for positioning the angle forming device, and circular tenon rod hole (5), respectively; a circular tenon rod (6), which is used for positioning, is inserted into the circular tenon rod hole (5); after the adjacent sectional frame bars (1) are mutually coupled, a space (7) which is used for accommodating the assembly-type angle forming device (2) is formed at a coupling location, the assembly-type angle forming device (2) being formed by means of combining two halves of the angle forming device (21), wherein the two halves of the angle forming device (21) are each fixed in a corresponding U-shaped groove (4), which is used for positioning a sectional frame bar, by using a screw (22), and the two halves of the angle forming device (21) are mechanically tightened by means of a bevel gear pair mechanism, which is paired in a three-pronged engagement, to tightly fix and connect the two adjacent sectional frame bars (1). The present invention has the features of being capable of increasing connection strength at angle portions, increasing sealing performance after angle formation, improving the convenience of frame forming, increasing productivity, and the like.\nD: A display lightbox comprises profiles (1) forming a frame, and LED strip lights (2) disposed at an inner side of the frame. The display light box further comprises a corner connector (3) and a fastener member (4). Each corner of the frame is formed by joining and engaging two of the profiles (1). The profiles (1) have line symmetry and, from the center to two sides thereof, are sequentially provided with a first cavity (1-1), a second cavity (1-2), and a fabric insertion recess (1-3). The corner connector (3) has one end serving as a fixed end (3-1) and another end serving as a fastening end (3-2). The fastening end (3-2) is provided with a fastening notch (3-3), and shapes of the fixed end (3-1) and the fastening end (3-2) of the corner connector (3) match a shape of the first cavity (1-1). The fixed end (3-1) of the corner connector (3) is inserted into and fixed to the first cavity (1-1) of one profile (1) at a corner. The fastener member (4) is fixedly connected to the other profile (1) at the corner, and when the two profiles (1) at the corner are joined together, the fastening end (3-2) of the corner connector (3) is inserted into the first cavity (1-1) of the other profile (1) at the corner, and the fastener member (4) is fastened to and fixed within the fastening notch (3-3). The display lightbox has a clean design, and is aesthetically pleasing and easy to assemble and disassemble.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA lock latch, comprising: a lock latch module and a driving module; the lock latch module comprises a pull latch (3) mounted on a first main body, and an oblique pin rack (4) mounted on a second main body and adapted to the pull latch (3), the pull latch (3) being provided with a first insertion hole (31), the first insertion hole (31) having a hole width sufficient to accommodate the oblique pin rack (4); the driving module is used for driving the oblique pin rack (4) to move transversely, such that the oblique pin rack (4) engages with or disengages from the first insertion hole (31), in a snap-in position, of the pull latch (3). Said lock latch structure can achieve the splicing of inside and outside arcs with different arcs and planar splicing without the need to be accurately processed, and said lock latch can be used for splicing the first main body and the second main body together.\nA: A symmetric hot bending device for a round bamboo (24), comprising: a support (1), a first main body (2) transversely fixed above the support; two second main bodies (4), a third main body (6) vertically disposed at the middle of the first main body, an exploratory disposed on the third main body, first clamping rods (16), and a power module. Two transverse first guide rails (3) are symmetrically disposed on the first main body; the two second main bodies are respectively and correspondingly disposed in the two first guide rails; each of the second main bodies is provided with a vertical second guide rail (5); each of the second guide rails is provided with the first clamping rod; the power module is used for controlling the two second main bodies to synchronously and transversely move towards or away from each other in respective first guide rails, and is further used for controlling the two first clamping rods on the two second main bodies to synchronously move up and down in respective second guide rails; the exploratory is fitted with the first clamping rods at two sides, for use to fix and perform hot bending formation on the round bamboo.\nB: An intelligent security identification device and system. The security of the intelligent security identification device and system is improved. The security identification device comprises a body part (1), a ring band part and a lock catch part. The ring band part comprises a first ring band (2) and a second ring band (3). One end of the body part (1) is connected to one end of the first ring band (2), the other end of the body part (1) is connected to one end of the second ring band (3), a first wire is arranged in the first ring band (2), and a second wire is arranged in the second ring band (3). The lock catch part comprises a lock catch connector (4) and a lock catch insertion base (5). The other end of the first ring band (2) is connected to the lock catch connector (4), and the other end of the second ring band (3) is connected to the lock catch insertion base (5). The body part (1) comprises an IC module (11). One end of the first wire and one end of the second wire are both connected to the IC module (11), the other end of the first wire is connected to the lock catch connector (4), the other end of the second wire is connected to the lock catch insertion base (5), and when the lock catch connector (4) is matched with the lock catch insertion base (5), the lock catch part, the first wire, the second wire and the IC module (11) form a circuit.\nC: An arc-shaped lock catch, comprising an angle adjustment assembly (1). Two ends of the angle adjustment assembly (1) are provided with a drive assembly (2) and a locking assembly (3) respectively, one end of the angle adjustment assembly (1) is provided with a rotationally arranged arc lock seat (11), and the drive assembly (2) comprises a first drive member (21) which is disposed on the arc lock seat (11); a first transmission member (22) cooperates with the output end of the first drive member (21), and the first transmission member (22) has a first thread (221); and a second transmission member (22) is rotatably connected to the angle adjustment assembly (1), and has a second thread (231) that cooperates with the first thread (221). The arc-shaped lock catch provided by the present application drives the angle adjustment assembly (1) by means of the drive assembly (2) to rotate and adjust the angle between two adjacent LED display screen box bodies so as to achieve horizontal splicing, vertical splicing or splicing at a certain angle, and the angle adjustment, splicing and unlocking of the two adjacent LED display screen box bodies are automatically completed by means of the drive member. The operation is simple, the difficulty of the splicing operation of the LED display screen box bodies is reduced, which facilitates the assembling of an LED display screen.\nD: A locking cord, lock, and backpack combined structure. The structure comprises a locking cord (1), a combination lock (2), and a backpack (3). The combination lock (2) is located at the top, the front, one side or the back of the backpack (3); the combination lock (2) is provided with a catch; one end of the locking cord (1) is fixed on the backpack (3), and the other end is provided with a puller (11); the puller (11) is fixed on the combination lock (2) by means of the catch; the backpack (3) is provided with a hidden intermediate layer (6); the hidden intermediate layer (6) is provided at the left side or the right side of, or on a shoulder strap (7) of the backpack (3); the hidden intermediate layer (6) is used for accommodating and hiding the locking cord (1); the backpack (3) is provided with zipper tapes (4); two zipper heads (5) are provided on the zipper tapes (4) for controlling engagement or opening of the zipper; each zipper head (5) is fixed on the combination lock (2) by means of a catch. The combined structure can ensure the safety of an article in a backpack and ensure the safety of the backpack.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA torque balance device (100), a self-balancing joint (10), and a surgical robot (1). The torque balance device (100) comprises a first body portion (110), a second body portion (111), an elastic portion (120), and a transmission portion (130), wherein the first body portion (110) comprises a first connection end and a first opposite end opposite to the first connection end; the second body portion (111) comprises a second connection end and a second opposite end opposite to the second connection end; the second connection end of the second body portion (111) is rotatably connected to the first connection end of the first body portion (110); the elastic portion (120) is provided in the first body portion (110); and the transmission portion (130) and the second body portion (111) are connected to the elastic portion (120).\nA: A joint structure, comprising a first main body (1), a second main body (2), a motor (4), and a harmonic speed reducer (3). The harmonic speed reducer (3) is provided with a flexible wheel (31), a rigid wheel (32), and a wave generator (33); the second main body (2) comprises a first member (21) and a second member (22) fixedly connected to each other; the first member (21) is provided with a first hole (211); the harmonic speed reducer (3) is located in the first hole (211); the harmonic speed reducer (3) is located between the first main body and the second member (22); the rigid wheel (32) is fixedly connected to the first member (21); an outer peripheral wall of the rigid wheel (32) matches an inner peripheral wall of the first hole (211); the flexible wheel (31) is fixedly connected to the first main body (1); the second member (22) is provided with a first boss (223) and a second hole (221); an outer peripheral wall of the first boss (223) matches the inner peripheral wall of the first hole (211); a machine body of the motor (4) is fixed to the side of the second member (22) facing away from the first member (21); and a rotating shaft of the motor (4) passes through the second hole (221) and is then connected to the wave generator (33). The joint structure is easy to mount and operate, and the joint structure can adapt to high-speed operation. Further provided are an industrial robot, a mechanical arm, and an assembling method for the joint structure.\nB: A transport vehicle (V1) for a case body of a mobile power generation system, comprising: a chassis (100) comprising a main beam (110), and a lifting mechanism assembly (200) located on the chassis (100). The lifting mechanism assembly (200) comprises: a flipping frame (210) hingedly connected to the chassis (100) at a hinge position (MP) of the chassis (100), at least one flipping hydraulic cylinder (L1) connecting the flipping frame (210) and the chassis (100), and a connecting frame (230) configured to be detachably connected to the case body. A first body part (111) of the main beam (110) is located between the hinge position (MP) and a second body part (112), and a third plane (P3) where the surface of the second body part (112) facing the flipping frame (210) is located is further away from the connecting frame (230) relative to a first plane (P1) where the surface of the first body part (111) facing the flipping frame (210) is located; a part of the lifting mechanism assembly (200) is located between the first plane (P1) and the third plane (P3) when the angle value of a first included angle (A1) between the first plane (P1) and a second plane (P2) where the surface of the flipping frame (210) facing away from the first body part (111) is located is minimum. In this way, the installation and disassembly of the case body are simplified, and the disadvantageous increase of the height of the transport vehicle is avoided. In addition, also provided is an installation method for a case body of a mobile power generation system.\nC: A wearable electronic device, comprising a first main body portion; a second main body portion, the second main body portion being connected to the first main body portion; a wearable portion, connected to opposite ends of the first main body portion, the wearable portion being used to secure the first main body portion and the second main body portion onto an external object; a first antenna, arranged on the first main body portion or the second main body portion, the first antenna being used to transmit a radio frequency signal; and a second antenna, arranged on the wearable portion, the second antenna being used to transmit a radio frequency signal.\nD: Disclosed is a light blocking device (100), comprising a front support (1), a first baffle (2), a rear support (3) and a second baffle (4), wherein the front support (1) comprises a first support main body (11), a first sliding rail (12) and a first light passing port (110), and the first sliding rail (12) extends in a first direction; the first baffle (2) comprises a first main body portion (21) and a first sliding portion (22); the first main body portion (21) may slide relative to the front support (1) in the first direction by means of the first sliding portion (22), such that the first main body portion (21) at least partially covers the first light passing port (110); the rear support (3) comprises a second support main body (31), a second sliding rail (32), and a second light passing port (310) concentrically provided with the first light passing port (110); the second support main body (31) is fixed to the first support main body (11); the second sliding rail (32) extends in a second direction, and the second direction is perpendicular to the first direction; and the second baffle (4) comprises a second main body portion (41) and a second sliding portion (42), and the second main body portion (41) may slide relative to the rear support (3) in the second direction by means of the second sliding portion (42), such that the second main body portion (41) at least partially covers the second light passing port (310). Compared with the related art, the light blocking device (100) has a good blocking effect.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA ring-shaped permanently magnetic, low-frequency, vibration isolation mechanism based on the negative rigidity principle, comprising an upper rubber sheet (1), an inner ring-shaped permanent magnet stationary spindle (2), an upper pressing ring (3) of the upper rubber sheet, an outer pressing ring (4) of the upper rubber sheet, an outer ring-shaped permanent magnet (5), a lower rubber sheet (6), an inner pressing sheet (7) of the lower rubber sheet, an outer pressing ring (8) of the lower rubber sheet, an outer ring-shaped permanent magnet fixing sleeve (9), and an inner ring-shaped permanent magnet (10). The inner ring-shaped permanent magnet (10) is axially magnetized. The outer ring-shaped permanent magnet (5) is radially magnetized. The inner and outer ring-shaped permanent magnets form a positive rigidity system. The upper and lower rubber sheets form a negative rigidity system. The positive and negative rigidity systems are serially connected and used to form the low-frequency vibration isolation mechanism. Three or four single-degree-of-freedom isolation mechanisms can be serially connected to enable three-degrees-of-freedom low-frequency vibration isolation. The present invention can be applied in fields such as optics, acoustics, biology, semiconductor manufacturing, and precision measurement. The present invention is simple in structure, low in cost, easy to process, requires no external air source, and can be used in a vacuum.\nA: The present invention relates to the field of ultra-precision vibration damping. A compact magnetic mechanism with negative rigidity, comprising a machine frame (1), a negative rigidity adjustment component, a flexible guide component, and a motion component. The magnetic mechanism with negative rigidity utilizes the repulsion action of reversely arranged magnets to form a negative rigidity property, and the negative rigidity can be adjusted by the negative rigidity adjusting component. An ultra-low frequency vibration damper formed by connecting the magnetic mechanism with negative rigidity and a positive rigidity spring (40) in parallel has an extremely low dynamic rigidity, thus greatly reducing the inherent frequency thereof, such that the vibration damper has a good vibration isolation effect for high frequency vibration interference while effectively isolating ultra-low frequency vibration, thus being suitable for a vibration sensitive ultra-precision machining and measurement device.\nB: A radial permanent magnet floating bearing, comprising: a horizontal shaft (2), a support bearing (4), and a radial permanent magnet floating bearing (3); the permanent magnet floating bearing (3) comprises a stator pull-push magnet (31) disposed on a stator casing (1) via a magnetic substrate (322), and a rotor pull-push magnet (32) disposed on the horizontal shaft (2) correspondingly via an annular magnetic substrate (322), having a radial gap and forming an axial pull-push magnetic circuit with the stator pull-push magnet (31); the rotor pull-push magnet (32) consists of two or more annular permanent magnets axially and closely attached, with magnetic poles alternately arranged in the axial direction; the stator pull-push magnet (31) consists of two or more annular permanent magnets axially and closely attached, with magnetic poles alternately arranged in the axial direction, disposed over the horizontal panel where the axle center of the horizontal shaft (2) is located, and being symmetrical about the perpendicular bisection plane of the horizontal axis. The bearing has a simple structure and greatly reduces energy consumption, without wear or bearing maintenance.\nC: The present invention relates to the field of magnetic valves. Disclosed is a high-power bi-directional non-recovery spring magnetic valve comprising permanent magnets. The magnetic valve comprising permanent magnets has an upper magnetic circuit part and lower magnetic circuit part symmetrically disposed and connected together via an armature connection rod (7) and a housing connection ring (14); the upper magnetic circuit part comprises an upper iron core (8), an upper housing (9), an upper coil (10), an upper annular permanent magnet (11), an upper yoke iron (12) and an upper push rod (13); the lower magnetic circuit part comprises a lower iron core (6), a lower housing (5), a lower coil (4), a lower annular permanent magnet (3), a lower yoke iron (2) and a lower push rod (1). The magnetic valve comprising permanent magnets realizes bistable-state magnetic retaining, and has an adjustable retaining force for permanent magnet adjustment, quick response, and high output force.\nD: Disclosed is an axial permanent magnetic suspension bearing having micro-friction or no friction of the pivot point, comprising a support bearing (4) provided on a shaft serving as vertical, and a permanent magnetic suspension bearing (3) provided on the vertical shaft. The permanent magnetic suspension bearing (3) comprises a stator pull-push magnet (31) provided on a stator (1) and a rotor pull-push magnet (32) correspondingly provided on a rotor (2) by means of a soft magnetic material base (322) and axially separated from the stator pull-push magnet (31) to form a pull-push magnetic circuit. The stator pull-push magnet (31) and the rotor pull-push magnet (32) are respectively composed of two or more than two annular permanent magnets provided as radially closely fitting and with magnetic poles alternating in the radial direction, and upper and lower annular permanent magnets correspondingly in the same radial position have the same magnetic strength and inverse polarity. The stator pull-push magnet (31) and the rotor pull-push magnet (32) are radially spaced from the surface of the vertical shaft near an annular surface of the annular permanent magnets of the vertical shaft that is near the vertical shaft. The present invention has small magnets, is good to manufacture, is good to install, and has a high radial restoring force, while the force of attraction is great and frictional force is reduced by 98%.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA variable-output cam lever power device, comprising: a housing (1); a motor (2), the motor (2) having a rotating shaft (21); a cam (3), the cam (3) being mounted on the rotating shaft (21) in a detachable and replaceable manner, and a front end face of the cam (3) being provided with a cam track sliding groove (31); an output shaft (4), a linkage rod (5) being fixed at a rear end of the output shaft (4); a lever (6), a front end of the lever (6) being provided in a shaft hole (101) of the housing (1), a linkage plate (61) being formed in the middle of the lever (6), the linkage plate (61) being connected to the linkage rod (5), and a rear end of the lever (6) being provided in the cam track sliding groove (31) of the cam (3).\nA: Disclosed is a multi-station cam carrying mechanism, comprising a baseplate (1), a rotary shaft (2) arranged in the middle of the baseplate (1), an electric motor (3) in driving connection with the bottom of the rotary shaft (2), a rotary plate (4) arranged at an upper part of the rotary shaft (2), mounting frames (5) arranged on the baseplate (1), a mounting plate (6) arranged on the mounting frames (5), an annular sliding groove (7) provided on a bottom face of the mounting plate (6) along a cam trajectory, and a plurality of grabbing and transferring assemblies (8) annularly and uniformly arranged at intervals, with bottom parts thereof being slidably arranged on the rotary plate (4) and top parts thereof being slidably arranged in the sliding groove (7). The electric motor (3) drives a plurality of stations to carry products simultaneously, while the grabbing and transferring assemblies (8) perform a reciprocating movement along the cam trajectory, grabhooks (84) on the grabbing and transferring assemblies (8) perform a vertical reciprocating movement so as to grab and transfer the products, so that the products are sequentially transferred from one station to the next station. The present invention has a compact structure, reduces the size of an apparatus, improves the transferring efficiency, works stably and has a good effect when in use.\nB: A damper, and laundry machine using same. The damper comprises a rotating shaft (3), a cam mechanism (4), a buffer mechanism (5), and a stroke amplification mechanism (6). The rotating shaft (3) rotates about an axial direction. The buffer mechanism (5) provides a buffering force. The cam mechanism (4) is connected to the rotating shaft (3), and converts rotation with respect to the rotating shaft (3) into a linear reciprocating motion. The stroke amplification mechanism (6) is connected to the cam mechanism (4) and the buffer mechanism (5), and transmits and amplifies a small stroke of the cam mechanism (4) to provide a large stroke of the buffer mechanism (5). The stroke amplification mechanism (6) comprises a lever (61), and a fulcrum (613) divides the lever into a short arm (612) and a long arm (611). An end of the lever on the long arm (611) is connected to the buffer mechanism (5), and the end of the lever on the short arm (612) is connected to the cam mechanism (4). By employing the stroke amplification mechanism (6) to convert a small movement of the rotating shaft (3) into a large movement of the buffer mechanism (5), the present invention provides a design in which a small-angled rotation of the rotating shaft (3) can accurately provide a sufficient damping force, thus improving product safety, and providing superior user experience.\nC: A continuously variable valve lift device for a piston internal combustion engine, comprising a cylinder head (1), a camshaft (2) rotatably supported by the cylinder head (1), a cam (3) axially fixed to the camshaft (2), a hydraulic tappet (4), and a valve (5), further comprising a lever (6), an adjusting lever (7), an adjusting shaft (8), a guide shaft (9), a guide frame (10), and a return spring (11); a large arc face (61) is provided at one side face of the lever (6); one end portion of the adjusting lever (7) is in sliding contact with the large arc face (61) of the lever (6), and the other end of the adjusting lever (7) is connected to the adjusting shaft (8); the adjusting shaft (8) is rotatably supported by the cylinder head (1), and the adjusting shaft (8) can rotate and drive the adjusting lever (7) to swing, so that one end portion of the adjusting lever (7) moves in a circumferential direction along the large arc face (61); and one end of the lever (6) is in contact with or in indirect contact with the valve (5), the other end of the lever (6) is in contact with or in indirect contact with the cam (3), and both the valve (5) and the cam (3) are located on a side, opposite the large arc face (61), of the lever (6). Said device not only implements continuous variation of the valve lift, but also enables the valve lift to become zero.\nD: A speed changing device (1) comprises an outer-ring component (2), a mandrel (3), a plurality of cam components (5), and a plurality of inner gears (6). At least one outer gear (21) is comprised inside the outer-ring component (2). The mandrel (3) and the at least one inner gear (21) are coaxially and pivotally disposed on the outer-ring component (2). The mandrel (3) is provided with a central axis (30) and a plurality of cam junction portions (31) is disposed on the periphery of the mandrel (3). The plurality of cam components (5) is detachably sleeved on the plurality of cam junction portions (31), synchronously rotates along with the mandrel (3), and at least two of the plurality of cam components (5) has an angle phase difference that is not zero. The plurality of inner gears (6) is made of a rigid material, and is separately sleeved on the plurality of cam components (5) and does not move along with the plurality of cam components (5). The plurality of inner gears (6) engages with part of the at least one outer gear (21).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a lubrication distributor monitoring system capable of monitoring a plurality of distributor bodies (1) simultaneously. The lubrication distributor monitoring system comprises a monitoring system (9) and several distributor bodies (1), wherein a second piston hole (31) is provided in each distributor body (1), a working piston (3) is slidably arranged in the second piston hole (31), each distributor body (1) further comprises a sensing apparatus (7) for sensing slippage of the working piston (3), and a transmission module (8) connected to the sensing apparatus (7), and a sensing signal of the sensing apparatus (7) is sent to the monitoring system (9) by means of the transmission module (8). By means of the arrangement of the sensing apparatuses (7) and the transmission modules (8), staff can observe working conditions of the distributor bodies (1) in real time without being on the scene, such that the workload of staff is reduced, and intelligent monitoring is achieved.\nA: An intelligent automatic feeding mechanism. The feeding mechanism comprises a feeding frame (6), a driving linkage (8) and a driven linkage (9) fixedly connected to the left and right sides of the feeding frame (6), a hydraulic rod (23) in drive connection with the driving linkage (8), and two hooking tooth mechanisms (1) fixedly provided at the front side of the feeding frame (6). The feeding mechanism further comprises: a first sensing device (2) used for outputting a first sensing signal under the effect of a side face of a waste container (24); a second sensing device (3) used for outputting a second sensing signal under the effect of a container edge of the waste container (24); two gravity sensing plates (7) used for detecting and outputting a pressure signal applied by the waste container (24); a waste container feeding limiting device used for limiting the ascending limit position of the waste container (24); and a control system connected to the first sensing device (2), the second sensing device (3), the two gravity sensing plates (7) and the waste container feeding limiting device by means of circuits respectively. Also disclosed is a control method for a feeding mechanism. The mechanism reduces the labor intensity of an operator, improves the operation efficiency, achieves the automation of a feeding cycle process, reduces the risk of container drop, and prolongs the service life of waste containers.\nB: A liquid distributing valve comprises a shell (1) and an oil supply channel (2). The shell (1) comprises an oil storage valve and a two-position three-way valve; the oil storage valve is separated into an oil storage chamber (31) and an oil pressing chamber (32) by a piston (4); the oil storage chamber (31) is communicated with an oil draining port (61) and is provided with a spring (5) butting against the piston (4); the two-position three-way valve comprises a valve chamber (7), a valve core (8) and a valve base (9); the valve chamber (7) is communicated with the oil pressing chamber (32) through an oil exchanging channel (10); an oil inlet (62) of the valve chamber (7) is communicated with the oil supply channel (2); a core hole (91) of the valve base (9) is communicated with the oil storage chamber (31) through a bypass oil channel (11). When the valve core (8) is located at a first valve position, the oil inlet (62) is plugged and the oil pressing chamber (32) is communicated with the oil storage chamber (31); when the valve core (8) is located at a second valve position, the core hole (91) is plugged and lubricating oil enters the oil pressing chamber (32) from the oil inlet (62), the piston is pushed to compress the spring, and the lubricating oil in the oil storage chamber (31) is drained from the oil draining port (61) and is conveyed to an appointed lubricating point. The liquid distributing valve is applicable to various lubricating demands, has a compact structure and high reliability and is convenient in maintenance.\nC: A soluble bridge plug adapter, comprising an adapter body (1) and a temperature acquisition and recording device (3). The temperature acquisition and recording device (3) is fixed on the adapter body (1), the adapter body (1) is used for connecting a setting tool and a soluble bridge plug, and the temperature acquisition and recording device (3) is used for measuring and recording the ambient temperature of the adapter body (1). Also provided are a dynamic well temperature measurement method using the soluble bridge plug adapter and a soluble bridge plug producing method. According to the soluble bridge plug adapter, the dynamic well temperature measurement method, and the soluble bridge plug producing method, the dynamic downhole ambient temperature can be measured when the soluble bridge plug is pumped, the operation is convenient, the cost is low, and a basis is provided for the material selection and design of ideal soluble bridge plugs used in this sector, thus facilitating the design of ideal soluble bridge plugs for use in the sector.\nD: An air tightness testing device for a wheel hub, the air tightness testing device comprising a testing machine (1), a telescopic arm (2), a water tank (3), an electric motor (4), a wheel hub (5) and a clamp (6), wherein a weight sensing device (7) is arranged at the bottom of the water tank (3), and the weight sensing device (7) is used for measuring the volume of water in the water tank (3); a first alarm device (8) is arranged on an outer surface of the water tank (3), and the first alarm device (8) is connected to the weight sensing device (7); liquid sensing devices (9) are arranged on the clamp (6), and the liquid sensing devices (9) are used for detecting whether the clamp (6) comes into contact with the water; and a second alarm device (10) is arranged on the testing machine (1), and the second alarm device (10) is connected to the liquid sensing device (9). The weight sensing device (7) is arranged below the water tank (3) and connected to the first alarm device (8), and the liquid sensing devices (9) are arranged on the upper and lower end faces of the clamp (6) to detect whether the wheel hub (5) is completely submerged in water, such that the device has a simple overall structure, the working efficiency of testing the air tightness of the wheel hub (5) is improved, and incomplete immersion of the wheel hub (5) due to insufficient water in the water tank (3) is avoided.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA hydraulic press implementing efficient sealing, comprising a hydraulic press body (17) and a first telescopic rod (7). The front surface of the hydraulic press body (17) is provided with a control panel (16), and the top end of the hydraulic press body (17) is provided with a support (6); the other side of the hydraulic press body (17) is provided with a control box (14); the bottom end of the hydraulic press body (17) is provided with castors (18), and one side of the hydraulic press body (17) is provided with a sleeve (4); a push rod 5 is embedded into the interior of the sleeve (4); a sealing layer (1) is provided in the hydraulic press body (17). The hydraulic press reduces dangerous situations and improves working and use efficiency.\nA: A stamping-resistant integrated hydraulic machine, comprising a base (1), a square supporting column (2), a rotary table (3), a lifting stamping device and die (5), a hydraulic oil cylinder (6), and a control panel (10) which are arranged in sequence from bottom to top. The hydraulic oil cylinder is disposed on the top of the lifting stamping device and die (5) and goes up and down along with the lifting stamping device and die. At least two guiding columns (4) are disposed in the position between the lifting stamping device and die and the base and close to the square supporting column. The square supporting column is disposed at one side of the base (1). The rotary table is driven by a rotary shaft (7) and a motor (8) to rotate above the base (1). An air rubber spring (9) is further connected between the rotary table and the base. A compression spring (14) is further sleeved in the air rubber spring. Both ends of the air rubber spring and both ends of the compression spring are respectively fixed to the bottom of the rotary table and the top of the base. The stamping-resistant integrated hydraulic machine is convenient to operate and has a good vertical lifting degree.\nB: An automatic printing paste stirrer, comprising a stirrer body (1), support legs (2), a groove (3), a hydraulic rod (4), a first pulley (5), a shell (6), a hydraulic station (7), a servo motor (8), a two-way gear pump (9), a hydraulic oil tank (10), a bracket (11), a sliding chute (12), a stirring station (13), a second pulley (14), a paste cup (15), a control switch (16), a control panel (17), stirring shafts (18), a suspended hood (19), universal pipes (20), illuminating lamps (21), lifting lugs (22), a connecting port (23), a negative pressure fan (24), an air delivery pipe (25), a processing box (26), an air inlet (27), and an air outlet (28). The hydraulic rod (4) is mounted in the groove (3); one end of the hydraulic rod (4) is mounted with the first pulley (5); the hydraulic station (7) is mounted at the inner side of the support leg (2); one side of the control switch (16) is mounted with the control panel (17); the suspended hood (19) is sleeved at the top of the stirring shaft (18); one end of the top of the shell (6) is mounted with the universal pipe (20); one end of the universal pipe (20) is mounted with the illuminating lamp (21); the lifting lugs (22) are welded at four corners of the top of the shell (6); the negative pressure fan (24) is mounted at one side of the connecting port (23); and one side of the connecting port (23) is connected to the processing box (26) by means of the air delivery pipe (25). The automatic printing paste stirrer has the advantages of convenient movement, high stability during work, easy transportation, and can improve the working environment, facilitate mixing effect observation, and is beneficial to enterprise production.\nC: Provided is a print washing fastness tester, comprising a tester body (1), support legs (2), a groove (3), a hydraulic rod (4), a slide wheel (5), a hydraulic station (6), an electric control box (17), a control panel (18), a fixed rotary shaft (21), a protective housing (22), a shock-absorbing base (25), and a top plate (30); the support legs (2) are mounted at the bottom end of said tester body (1); the groove (3) is provided inside the support leg (2); the hydraulic rod (4) is mounted inside the groove (3); the slide wheel (5) is mounted at one end of the hydraulic rod (4); the hydraulic station (6) is mounted on the inner side of the support legs (2); a support post (16) is mounted on one side of the top of the tester body (1); the electric control box (17) is mounted at one end of the support post (16); the control panel (18) is mounted on one side of the electric control box (17); the protective housing (22) is mounted on the two sides of the top end of the electric control box (17) by means of the fixed rotary shaft (21); the shock-absorbing base (25) is mounted at the bottom end inside the housing (10); the print washing fastness tester is convenient to move and is highly stable when operating; the electric control box (17) is also better protected and the internal components can be protected, increasing the service life of the instrument.\nD: Disclosed is an efficient rust removal device, comprising a deruster body (1), wherein a base (8) is arranged outside the deruster body (1); a rust removal liquid jet tube (9) is mounted on one side of the base (8); a handle (17) is mounted on the other side of the base (8); a high-pressure oil mist jet tube (2) is mounted below one side of the base (8); a control panel (3) is mounted on the front side surface of the base (8) in an embedded manner; expanding pulleys (7) are mounted below the base (8); and a grinding head (19) is mounted on the side, close to the expanding pulleys (7), of the lower part of the base (8). A rubber dust cover (6) is provided, and the rubber dust cover (6) is used, such that dust generated during grinding can be controlled and prevented from flying away and injuring the respiratory organs of an operator, and accordingly, the quality of the working environment is thus improved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA pipeline leakage detection apparatus and method employing a particle swarm optimization-based variational mode decomposition (PSO-VMD) algorithm. The method comprises: using acoustic emission devices (1, 2, 3) to acquire acoustic emission signals when no leakage occurs and when leakage occurs; acquiring, by means of a PSO-VMD algorithm, a pre-configured scale K and a penalty coefficient α for decomposition of the acoustic emission signal; performing variational mode decomposition (VMD) on the signal to acquire K intrinsic mode function (IMF) components; performing signal reconstruction by using a method employing an energy value, so as to acquire an optimal de-noised observation signal; selecting a time domain feature parameter of the reconstructed signal; and performing leakage detection by means of a support vector machine (SVM) algorithm. The method allows pipeline leakage to be detected in a timely manner, and resolves the issue in which a false alarm rate on a pipeline is high.\nA: Disclosed is a fault diagnosis method under the effect of a center frequency convergence trend, comprising (1) acquiring a dynamic signal x(t) of a rotating mechanical device; (2) setting initial decomposition parameters of a variational model; (3) decomposing the dynamic signal x(t) using the variational model with the initial decomposition parameters, under the guidance of the center frequency convergence trend, iterating the signal analysis frequency band to decompose the dynamic signal x(t) to obtain an optimized mode {m 1 ... m n ... m N } and corresponding center frequency {ω 1 ... ω n ... ω N }; (4) searching for a fault-related mode m I , guiding parameter optimization with the center frequency ω I  of the fault-related mode m I , and extracting an optimal target component aa containing fault information; (5) performing envelope analysis of the optimal target component aa, and diagnosing the rotating mechanical device according to the envelope spectrum. In the fault diagnosis method of the present invention, a center frequency convergence trend-guided decomposition method is used to achieve smart decomposition of an original dynamic signal of a diagnostic target device; thus it is possible to adaptively analyze the acquired device dynamic signal, reducing the difficulty for a technician to use the variational modal decomposition method to diagnose mechanical faults.\nB: A structural damage identification method based on ensemble empirical mode decomposition and a convolution neural network. The method comprises: selecting an acceleration response signal of a structure as an analysis object; using ensemble empirical mode decomposition technology to decompose the acceleration response signal, so as to obtain a series of intrinsic mode functions (IMFs); selecting an intrinsic mode function (IMF) containing a structural natural vibration frequency for reconstruction; and then using a one-dimensional convolution neural network to perform feature extraction and damage classification on a reconstructed signal, thereby obtaining an identification result of a structural damage position.\nC: A pipeline leakage position calculation method based on beam forming. The method comprises: arranging a reference sensor on an outer wall of one end of a target pipeline, and arranging a plurality of auxiliary sensors at intervals on an outer wall of the other end of the target pipeline, wherein the plurality of auxiliary sensors and the reference sensor are arranged in a straight line to form a multi-element linear sensor array; if pipeline leakage occurs, collecting a leakage signal by means of each sensor in the multi-element linear sensor array, and sending the leakage signal to a signal processing terminal; and the signal processing terminal using an auto-spectrum-excluding cross-power spectrum beamforming algorithm to carry out joint calculation on a sound source position where the pipeline leakage occurs and the speed of a sound wave signal being propagated along the pipeline, and then outputting a positioning result.\nD: A signal noise filtering method, an apparatus, a storage medium, and a lidar. The method comprises: performing ensemble empirical mode decomposition on an initial difference frequency signal generated by a lidar, and obtaining a component set corresponding to the initial difference frequency signal (S101); acquiring an autocorrelation function energy value corresponding to each noise-containing component in the component set, and acquiring a boundary component corresponding to a largest autocorrelation function energy value among the noise-containing components (S102); performing wavelet threshold denoising on adjacent high order noise-containing components of the boundary component, and obtaining a denoise component corresponding to the adjacent high order noise-containing components (S103); performing signal reconstruction on the basis of a spectrum band region in the frequency spectrum where the initial difference frequency signal is located and on the basis of the denoise component and the boundary component, and obtaining a denoised time domain difference frequency signal (S104). The present method can improve the signal-to-noise ratio of a difference frequency signal, and improve the success rate of active difference frequency frequency extraction.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA smart filament light structure, comprising a stem (1), an antenna (2), a signal transmitting/receiving module (3), and a driver board (4). The stem (1) comprises a shoulder part (11) and a button (12). The shoulder part (11) of the stem (1) is provided with multiple first lead wires (111). The button (12) of the stem (1) is provided with a second lead wire (121). Light filaments (5) are provided between the first lead wires (111) and the second lead wire (121). A connecting lead wire (13) is provided on the stem (1) to form a circuit loop. One end of the connecting lead wire (13) is connected to one of the first lead wires (111); the other end of the connecting lead wire (13) forms a first connecting end (131). A second connecting end (14) connected to the second lead wire (121) is led out from the stem (1). One end of the antenna (2) protrudes the shoulder part (11) of the stem (1); the other end of the antenna (2) forms a third connecting end (21). The signal transmitting/receiving module (3) is connected to the third connecting end (21). The driver board (4) is connected to the first connecting end (131) and the second connecting end (14), a current flows in via the first connecting end (131), then runs through the light filament (5), and then flows out from the second connecting end (14). As such, implemented are the antenna (2) not being susceptible to interference and shielding, structural simplicity, and increased use effects of the filament light.\nA: A control circuit and a display device. The control circuit comprises a timing control panel (1) and a printed circuit board (3). The timing control panel comprises a first connecting terminal (11), a switch (12), and an operating circuit. The first connecting terminal (11) is connected to a control end (121) of the switch (12), a first voltage (V1) is available at an input end (22) of the switch (12), and an output end (123) of the switch (12) is connected to the operating circuit. The printed circuit board (3) comprises a second connecting terminal (31), a third connecting terminal (32), and a fourth connecting terminal (33) that are arranged in sequence. The voltage on the third connecting terminal (32) is different from the voltage on the second connecting terminal (31) and the voltage on the fourth connecting terminal (33). The first connecting terminal (11) is electrically connected to any one of the second connecting terminal (31), the third connecting terminal (32), and the fourth connecting terminal (33). When the first connecting terminal (11) is connected to the third connecting terminal (32), the switch is turned on. When the first connecting terminal (11) is connected to the second connecting terminal (31) or the fourth connecting terminal (33), the switch is turned off. By means of the control circuit, the burnout of an operating circuit caused by inserting a connector slantwise is avoided.\nB: A hair curling apparatus with a far infrared function, comprising a rod head (1) and a main machine (2), the rod head (1) and the main machine (2) having a plug connection by means of the four mutually engaging pairs of a first connecting end (J1), a second connecting end (J2), a third connecting end (J3), and a fourth connecting end (J4); a power source circuit (20) and a control circuit (21) are arranged in the main machine (2), and a heating element (10), a temperature measurement element (11), and an LED far infrared light-emitting group (12) are arranged in the rod head (1); the two ends of the heating element (10) are respectively electrically connected to the power source circuit (20) and the control circuit (21) by means of the first connecting end (J1) and the second connecting end (J2); one end of the temperature measurement element (11) is connected to the control circuit (21) by means of the third connecting end (J3), and the other end is grounded by means of the fourth connecting end (J4); one end of the LED far infrared light-emitting group (12) is connected to the power source circuit (20) by means of the first connecting end (J1), and the other end is grounded by means of the fourth connecting end (J4). There is no need to add new circuit connection points for the LED far infrared light-emitting group (12), and the working state of the LED far infrared light-emitting group (12) is not affected by the operation of the heating element (10), enabling the main machine to be compatible with rod heads of traditional curling rods; use is convenient, and production costs are reduced.\nC: A test probe (20) of a detection apparatus. The test probe comprises a probe sheath (10) and the probe (20). The probe sheath (10) comprises a first connecting end (11), a second connecting end (12) and a connecting lead (13). The connecting lead (13) is flexibly connected between the first connecting end (11) and the second connecting end (12). The probe (20) is inserted on the second connecting end (12). The first connecting end (11) is welded onto a test PCB board (30) and forms a first signal connection area on that position. Other signal connection areas are provided on the test PCB board (30). Since the connection lead (13) is flexibly connected between the first connecting end (11) and the second connecting end (12), when the probe is inserted on the second connecting end (12), the probe (20) can be inserted into the test PCB board (30) from other signal connection areas and from a long distance and with a large span, thereby completing a test task for a functional module on a test board under the test PCB board (30).\nD: An LED filament lamp is provided, comprising a bulb, a supporting rod, at least two power cables, and at least two LED filament bars. Each LED filament bar comprises a substrate, an LED chip disposed on the substrate, and an electrode plate fixed to two ends of the substrate. One end of the electrode plate is electrically connected to the LED chip on the substrate, and the other end thereof is electrically connected to the electrode plate of another LED filament bar or to one end of a power cable, such that the LED filament bar and the at least two power cables form an electrically connected structure. One end of the supporting rod is fixed to the bulb, and the other end thereof is connected to at least one LED filament bar so as to support the LED filament bar. The supporting rod of the LED filament lamp of the present invention replaces a stem and a metal wire of an existing LED filament lamp, and the electrode plates of the LED filament bars are directly electrically connected to each other in an inventive manner, such that the LED filament lamp has the advantages of a highly reliable structure and a simple production process.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA two-color heat-shrinkable tube and straight LED light sleeved with the same, the heat-shrinkable tube (3) being divided along a longitudinal direction thereof so as to form two curved segments (31, 32) of different colors when viewed in a cross-section, one segment being a light-transmitting colored curved segment (32) and the other segment being a light-reflecting colored curved segment (31); a central angle (α) corresponding to the light-transmitting colored curved segment (32) is 30-180 degrees. The straight LED light sleeved with the two-color heat-shrinkable tube has an easily recognizable light-emission surface when mounted; the whole light appears more aesthetically pleasing since a back aluminum strip is covered when the light is off; and a shadow at 5-10 mm on both sides of the aluminum strip is eliminated when light is on, thus improving illumination.\nA: An LED lamp, comprising: an LED tube and a reflector (21); the LED tube comprises a substrate (22) and LED light strip (23); substrate (22) has an extension structure extending along the LED tube; the extension structure has a cross-section in the shape of a triangle or a V-shaped protrusion; LED light strip (23) is joined to the inclined surfaces of two sides of the protrusion, thus forming two light emitting surfaces; reflector (21) has an extension structure extending along the LED tube; the cross-section of the extension structure is two domes connected side-by-side, the bottom ends thereof having openings; reflector (21) is connected, by means of the connected ends of the domes, to the protrusion of the substrate and the openings of the domes face the light emitting surfaces; each of the light emitting surfaces is located within the enclosure of a dome; the area of the openings of the domes is greater than the area of the light emitting surfaces; each of the light beams of the light emitting surfaces shines toward the corresponding inside wall of a dome, and is reflected via the inside wall of the dome; the part of the light not blocked at the opening of the dome by the light emitting surfaces is emitted. The lamp effectively improves efficiency of light control and prevents glare.\nB: Disclosed is an 1E-grade bilayer heat-shrink tube for a nuclear power station, the tube comprising an outer layer and an inner layer, the inner layer being a hot melt adhesive layer and the outer layer being a heat-shrink layer; the outer layer consists of the following components: by weight, 20-40 parts of low density polyethylene, 60-80 parts of an ethylene-methyl acrylate copolymer, 40-60 parts of an ethylene-propylene rubber, 20-40 parts of decabromodiphenylethane, 10-20 parts of antimonous oxide, 8-15 parts of dysprosium oxide, 4-8 parts of a composite antioxidant, and 1-2 parts of a light stabilizer; the inner layer consists of the following components: by weight, 100 parts of an ethylene-methyl acrylate copolymer, 10-30 parts of an ethylene-propylene rubber, 8-15 parts of dysprosium oxide, 4-8 parts of a composite antioxidant and 1-2 parts of a light stabilizer. The 1E-grade bilayer heat-shrink tube for a nuclear power station in the present invention has excellent water-proof and moisture-proof performance, excellent heat resistance, radiation resistance, and high-temperature and high-pressure steam resistance, and the required insulating performance and voltage resistance.\nC: A laser tourniquet. A metal tourniquet (1) is installed at the end portion of a laser fiber. The metal tourniquet is installed on the fiber (3) through a fastener (2) or heat-shrinkable tubing. The metal tourniquet comprises a spherical head. The metal spherical head can convert laser energy into thermal energy, and the metal spherical head directly contacts and presses bleeding tissue to achieve a bleeding control function, thereby avoiding disadvantages in earlier laser bleeding control such as a small action area, difficulties in finding the position of an optimal action point and in selecting an action direction of laser accurately, and lack of compressed action on the target tissue. It is proved through many times of test that the tourniquet has a desirable effect in bleeding control and is convenient to use.\nD: A heat shrinkable film (11), the heat shrinkable film (11) being used to be heat-shrunk on surfaces of a box body (12), the size of an opening (21) of the heat shrinkable film (11) being larger than the perimeter of the box body (12) in the width and height dimensions (22) by a preset value, and the heat shrinkable film (11) having uniformly distributed vent holes (31). In this technical solution, the heat shrinkable film (11) is, after being heat-shrunk, tightly fitted to the box body (12) and is flat and wrinkle-free.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vehicle lamp (100) and a motor vehicle using the vehicle lamp (100). The vehicle lamp (100) comprises a first lamp assembly and a second lamp assembly. The first lamp assembly and the second lamp assembly share one light guide block (2) and are arranged above the light guide block (2) in a stacked manner, such that the first lamp assembly is closer to the light guide block (2) than the second lamp assembly. The first lamp assembly comprises a first light source (S KINK ) and a first light guide (1). The first light guide (1) has a first reflective surface (11). The first reflective surface (11) is capable of reflecting light from the first light source (S KINK ) towards the light guide block (2). The second lamp assembly comprises a second light source (S DRL ) and a second light guide (3). The second light guide (3) is capable of receiving and emitting light from the second light source (S DRL ), and at least part of the emitted light is incident into the light guide block (2). The light guide block (2) comprises a second reflective surface (22) and an exit surface (23), and light from the first lamp assembly and the second lamp assembly is reflected by the second reflective surface (22) and exits from the exit surface (23).\nA: Provided is a light guiding device (10), comprising a first light incident end surface (100) for receiving a first light, a second light incident end surface (102) for receiving a second light, a light exit surface (104) and a light reflecting surface (106) disposed opposite to the light exit surface (104). The light reflecting surface (106) is configured to perform a reflecting operation on the first light and the second light, and the first light and the second light after the reflecting operation are emitted from the light emitting surface (104). Also provided is a cosmetic mirror with a light guiding device (10). The light guiding device (10) and the cosmetic mirror having the light guiding device (10) are respectively provided with illuminants at both ends of a light guiding body (110), so that the light generated by the illuminant is transmitted from opposite ends of the light guiding body (110) to achieve the purpose of improving the uniformity of the emitted light.\nB: A backlight module (100), comprising: a light guide plate (1), which includes a light entrance surface (11) and a light exit surface (12) as well as a light propagation guide rail (13), the light entrance surface (11) comprises a first light entrance area (111) and a second light entrance area (112) adjacent to the first light entrance area (111), the light propagation guide rail (13) extends from the first light entrance area (111) to inside of the light guide plate (1), and is used to surround and form a light propagation channel (130), and a notch (131) facing the light exit surface (12) is formed on the light propagation guide rail (13); a light bar (2), which includes a first light source (21) and a second light source (22), the first light source (21) is directed to the first light entrance area (111), so that the light of the first light source (21) enters the light propagation channel (130), and is reflected by the light propagation guide rail (13), and is then sequentially emitted from the notch (131) and the light exit surface (12), the second light source (22) is directed to the second light entrance area (112,) so that the light of the second light source (22) enters the light guide plate (1), and is then emitted from the light exit surface (12); a control circuit (3), which is electrically connected to the first light source (21) and the second light source (22), and used to control the switching state of the first light source (21) and the second light source (22). A liquid crystal display (200) applying the backlight module (100). The backlight module (100) and the liquid crystal display (200) can achieve partition display.\nC: A light emitting device (100) and a vehicle lamp (200) using same. The light emitting device (100) comprises two light sources (111, 112), a first light conductor (121) and a second light conductor (122) arranged side by side, and a light guide element (130). The first light conductor (121) comprises a first light incident surface (1211) and a first end surface (1212); the second light conductor (122) comprises a second light incident surface (1221) and a second end surface (1222); the first light incident surface (1211) and the second light incident surface (1221) are arranged on the same side; the first end surface (1212) and the second end surface (1222) are arranged on the same side; the two light sources (111, 112) are respectively disposed on the first light incident surface (1211) and the second light incident surface (1221); and the light guide element (130) is disposed on the first end face (1212) and the second end face (1222), wherein the first light conductor (121) comprises a light exit portion (123), and the light exit portion (123) is provided on the first end face (1212) close to the first light conductor (121). Two light paths are formed by providing the two light conductors (121, 122) arranged side by side and the light guide element (130), so that the light emitted by the two light sources (111, 112) is respectively conducted and converged to the light exit portion (123), thereby improving the luminous flux of the light exit portion (123) and reducing the optical expansion amount of the entire light emitting device (100).\nD: Disclosed is a light supplementation device (100), comprising a mounting plate (6) as well as a first lamp bank (1) and a second lamp bank (2) disposed thereon. Light emitted from a first light emitting element (11) of the first lamp bank (1) exits from a first light-exiting surface (122) of a first prism (12), the first prism (12) having a first prism angle. Light emitted from a second light emitting element (21) of the second lamp bank (2) exits from a second light-exiting surface (222) of a second prism (22), the second prism (22) having a second prism angle. The first prism angle is different from the second prism angle such that light from the first lamp bank (1) and light from the second lamp bank (2) exit to different directions so as to supplement light for different ranges (51) of an area subject to light supplementation (5), thereby avoiding nonuniform brightness caused by light supplementation in a single direction. The mounting plate (6) realizes the combination and assembly of lamp banks with different light exiting directions, avoiding the complexity of respectively installing a plurality of lamp banks.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is an optical system for replaceable lens of stage lamps and lanterns, comprisingreplaceable light source (1), focusing lens group (21), enlarging lens group (22) and fixed lens group (3) arranged in sequence along the optical axis, the focusing lens group (21) and the enlarging lens group (22) are movable along the optical axis direction, the lens in the fixed lens group (3) is provided in the optical axis. By providing the replaceable fixed lens group (3) in the optical axis, the lamps and lanterns can be replaced with different types of fixed lens groups (3) according to actual requirements, that is, the optical effects such as the projection angle of the lamps and lanterns, the uniformity of the spot, and the softening degree of the edge of the spot can be changed, which makes the application more flexible.\nA: A light effect adjusting system, comprising a light source module (100), and a focusing module (200), an amplifying module (300), and a light emitting lens (400) which are sequentially provided in a light beam projection direction of the light source module (100). The focusing module (200), the amplifying module (300), and the light emitting lens (400) are mounted on a stage lamp support, and the focusing module (200) and the amplifying module (300) can slide independently in the direction of a light path; an effect module (500) is further provided between the focusing module (200) and the light emitting lens (400) in a sliding manner; the effect module (500) comprises one or more effect pieces (530) capable of entering or leaving the light path, and movement of the effect module (500) and movement of the amplifying module (300) are independent of each other and do not affect each other. The effect module (500) capable of sliding independently is independently provided, so that the effect module (500) can avoid the amplifying module (300), the problems of limitation of the amplifying module (300) on entering of the effect pieces (530) and limitation of entering of the effect pieces (530) on lamp angle adjustment are solved, the entering of the effect pieces such as prisms and atomization pieces can be performed on the stage lamp in all angles, so that the stage lamp can present richer stage effects.\nB: An optical lens set (55), a camera module (50), and an electronic device (100). The optical lens set (55) comprises a first lens and a second lens. The first lens comprises a first lens barrel (551) and a first lens group (M) fixed in the first lens barrel (551). The first lens group (M) has a positive optical power. The second lens is located on the image side of the first lens. The second lens comprises a lens motor (552) and a focusing anti-shake lens set mounted in the lens motor (552). The focusing anti-shake lens set comprises one or more focusing anti-shake lenses (N1). The lens motor (552) is used to drive the focusing anti-shake lens set in the direction of the optical axis of the optical lens set (55), and is also used to drive the focusing anti-shake lens set to move on a plane perpendicular to the optical axis. The camera module (50) comprises the optical lens set (55). The electronic device (100) comprises the camera module (50). The optical lens set (55) has a less complex structure and a lower cost investment.\nC: A lens module (1), comprising a housing (10), a first support frame (30), a lens assembly (40), a focusing drive assembly (50), and an anti-shake drive assembly (60). The first support frame (30) is installed in the housing (10) and can move in the optical axis direction of the lens assembly (40) relative to the housing (10). The lens assembly (40) is installed in the first support frame (30), and can move in a direction perpendicular to the optical axis direction of the lens assembly (40) relative to the first support frame (30), and cannot move in the optical axis direction of the lens assembly (40) relative to the first support frame (30). The focusing drive assembly (50) is disposed on the housing (10) and the first support frame (30), so as to drive the first support frame (30) to drive the lens assembly (40) to move in the optical axis direction of the lens assembly (40). The anti-shake drive assembly (60) is disposed on the lens assembly (40) and the housing (10), so as to drive the lens assembly (40) to move in the direction perpendicular to the optical axis direction of the lens assembly (40). The focusing drive assembly (50) drives the first support frame (30) to drive the lens assembly (40) to move in the optical axis direction of the lens assembly (40) so as to carry out an automatic focus function thereof. The anti-shake drive assembly (60) drives the lens assembly (40) to move in the direction perpendicular to the optical axis of the lens assembly (40) so as to carry out an anti-shake compensation function thereof.\nD: An assembling method for an optical camera lens, comprising: preparing first and second camera lens parts (100, 200) which are separate from each other; pre-locating the first and second camera lens parts (100, 200); adjusting and determining, according to active calibration, relative positions of the first and second camera lens parts (100, 200); and bonding the first and second camera lens parts (100, 200), the two being fixed and retained at the relative positions determined on the basis of the active calibration. A first lens (101) has a mark (109) and the mark (109) can be presented in an image with an optical axis calibration lens as a photographic object; and in the pre-locating step, the optical axis calibration lens is photographed, a first optical axis position is identified according to the mark (109) presented in the photographed image, and pre-locating is performed according to the identified first optical axis position and the second camera lens part (200). The assembling method for an optical camera lens, an assembling method for a photographic module, and the corresponding optical camera lens and photographic module can ensure, during pre-locating, that a camera lens has a stable loading position, and can improve the production efficiency and the product yield.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA lighting control device for an LED and a fluorescent lamp comprises a human body detector (1), a controller (2), an LED drive circuit (4), a fluorescent lamp drive circuit (6), and an illumination sensor (9). The human body detector (1) is used for detecting whether a human being enters or moves around. The illumination sensor (9) is used for detecting the brightness of a surrounding environment. The LED drive circuit (4) is connected to a k2 of the controller (2) and the K2 controls the switching on/off of the LED drive circuit (4). The fluorescent lamp drive circuit (6) is connected to a k3 of the controller (2) and the K3 controls the switching on/off of the fluorescent lamp drive circuit (6). When the illumination sensor (9) detects that the environment brightness is lower than a preset value D1 and at the same time, the human body detector (1) detects that a human being enters or moves in a detection range, the k3 is switched on. When no human being exists, the k2 is controlled to be switched on and the k3 is switched off. The normal working states of the k2 and the k3 are opposite to each other, but when the two are switched, the k3 is first to be switched on, the k2 is switched off after a time delay, thereby avoiding the phenomenon that the k2 and the k3 are simultaneously switched on and switched off at the same time.\nA: An apparatus and method for automatically monitoring a heat source in a home kitchen. The apparatus comprises: a controller (7), and a stepping electric motor control circuit, an infrared detector (1), a stepping electric motor 0° position recognition circuit, a status indicator light (10), a button (9) and a voice circuit, which are connected to the controller (7), wherein the stepping electric motor control circuit is connected to a stepping electric motor (5); and the infrared detector (1) comprises a driving circuit, a dual-element pyroelectric infrared sensor (24), a filter amplifier, a gate screen execution mechanism, and a Fresnel lens (13). The method comprises: by means of data analysis of two states, i.e. human body monitoring and heat source scanning, automatically recognizing an enabled state of a fixed heat source when there is no person in a kitchen, automatically determining a voice playing period according to the radiation intensity of the fixed heat source, and automatically playing voice alarm information. A fixed heat source in a kitchen can be effectively monitored, and intelligent home control over automatically recognizing a situation in which there is a person in a room and a situation in which there is no person in a room can be achieved.\nB: An OLED pixel driver circuit and an OLED display device. The OLED pixel driver circuit adopts a 4T1C structure, and is provided with a changeover switch (K), a first pin (K1) of the changeover switch (K) being electrically connected to a drain of a third thin film transistor (T3), a second pin (K2) being electrically connected to a digital-to-analog converter (DAC), a third pin (K3) being electrically connected to an analog-to-digital converter (ADC); said driver circuit controls, by means of a switch signal (Switch), the changeover switch (K) to connect the first pin (K1) and the second pin (K2) so as to enter a display mode, and controls, by means of the switch signal (Switch), the changeover switch (K) to connect the first pin (K1) and the third pin (K3) so as to enter a sensing mode, such that the analog-to-digital converter (ADC) senses a threshold voltage (Vth) of a fourth thin film transistor (T4), which is used, after the analog-to-digital conversion, for data compensation in the display mode. Accordingly, the invention has the compensation function, being able to improve the display uniformity, and improve the aperture ratio of pixels, reducing the manufacturing cost.\nC: An apparatus and method for automatically monitoring a heat source in a home kitchen. The apparatus comprises: a controller (7), and a stepping electric motor control circuit, an infrared detector (1), a stepping electric motor 0° position recognition circuit, a status indicator light (10), a button (9) and a voice circuit, which are connected to the controller (7), wherein the stepping electric motor control circuit is connected to a stepping electric motor (5); and the infrared detector (1) comprises a driving circuit, a dual-element pyroelectric infrared sensor (24), a filter amplifier, a gate screen execution mechanism, and a Fresnel lens (13). The method comprises: by means of data analysis of two states, i.e. human body monitoring and heat source scanning, automatically recognizing an enabled state of a fixed heat source when there is no person in a kitchen, automatically determining a voice playing period according to the radiation intensity of the fixed heat source, and automatically playing voice alarm information. A fixed heat source in a kitchen can be effectively monitored, and intelligent home control over automatically recognizing a situation in which there is a person in a room and a situation in which there is no person in a room can be achieved.\nD: A photoelectric sensor for automatically adjusting light of a constant-light table lamp. The photoelectric sensor is located on a base of the table lamp. Illuminance of a location point of the photoelectric sensor is approximately equal to average illuminance of a working plane illuminated by the table lamp, and an error is within 30%. The photoelectric sensor comprises: (1) a detection circuit, for detecting whether light of external environment and the luminance and wavelength of the light emitted by the lamp change, converting an optical signal into an electric signal and sending the electric signal to a light adjustment control circuit; (2) the light adjustment control circuit, for analyzing and processing the electric signal sent by the detection circuit, so as to identify whether it is the light of the external environment or the light emitted by the lamp, and if the light of the external environment changes, outputting a control signal to adjust the luminance of the lamp, so that the total luminance, that is, the luminance of the light of the external environment plus the luminance of the light emitted by the lamp, stays within a range required by the user; otherwise, not adjusting the luminance of the lamp. The photoelectric sensor enables the luminance of the lamp to automatically stay in an appropriate range.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an LED induction lamp for buildings. The LED induction lamp comprises a fixed block (2), wherein a lampshade (3) is arranged at a lower end of the fixed block (2); a plurality of LED lamps (5) are equidistantly arranged inside the lampshade (3) in a surrounding manner; an infrared sensor (7) is arranged on an inner wall at one side of the lampshade (3); a groove is formed in a fixed seat (1); the fixed block (2) is arranged in the groove; fixing devices (9) are arranged at both ends of the groove; a connecting rod (6) is arranged at an upper end of the fixed block (2); a cross rod (8) is transversely arranged on the connecting rod (6); a sound-sensitive sensor (7) is arranged on the cross rod (8); a control system is arranged inside the fixed seat (1); the control system comprises a control module, a power module and a light regulation module; and an output end of the infrared sensor (7) is electrically connected to an input end of the control module. The LED induction lamp for buildings has a simple structure, is convenient to manufacture, and determines whether there are pedestrians passing by means of infrared rays, thereby saving energy, prolonging the service life of an LED lamp, and also reducing usage costs.\nA: Provided is an ultraviolet disinfection and sterilization device, comprising a device body (1) and a control box (2); the top end surface of said device body (1) is fixedly provided with a mount (4); the top surface of said mount (4) is provided with a recess (6); the bottom end of said control box (2) is fixedly provided with a base (5); the outer surface of said base (5) is snap-fitted to the inner wall of the recess (6); the base (5) is internally provided with a movable groove (7); said movable groove (7) is internally provided with an abutting rod (8); the outer surface of said abutting rod (8) is fixedly provided with a fixing block (10); the control box (2) is placed on the top end of the mount (4) and fixed; by means of screwing a bolt (13) to a threaded groove (14), its tip enters an abutting groove (11) and abuts against the surface of the abutting rod (8), driving the abutting rod (8) to move, such that the other end of the abutting rod (8) is snap-fastened to the inner wall of a snap groove (12), limiting the position of the base (5) to be fixed; the control box (2) can be quickly connected to the device body (1), ensuring a steady connection, making disassembly for maintenance easier, thereby increasing operating efficiency and avoiding the danger of collapsing and overturning when bearing loads for long periods of time, thus the service life is further increased.\nB: A cutting apparatus for use on composite boards, comprising: a transverse beam device (1), a supporting frame (3) which conveys a composite board (2), a cutting mechanism (4) which is located directly above the composite board (2) and which is for use in cutting the composite board (2), and a cylinder device (5) which fixes the composite board (2); two ends of the transverse beam device (1) are fixed with a vertical beam device (6), wherein inner sides of the vertical beam device (6) are provided with a first fixing block (71) connected to a guide rail of the vertical beam device (6); a cross bar (8) parallel to the transverse beam device (1) is connected between the first fixing block (71), wherein a second fixing block (72) is connected to a lower surface guide rail of the cross bar (8), the cutting mechanism (4) being fixed on the second fixing block (72); the supporting frame (3) is provided thereon with an infrared sensor (9) which detects a cutter (41) on the cutting mechanism (4), wherein the infrared sensor (9) is connected, by means of a circuit, to a control cabinet (10) which controls the first fixing block (71) to run on the vertical beam device (6). The cutting apparatus may cut composite boards (2) of different thicknesses, and may freely adjust cutting position according to requirements, while having a simple structure and a wide range of applications.\nC: Disclosed is a magnetic-type concealed surveillance camera for easy installation, the surveillance camera comprising a housing (1) and a camera (3). The camera (3) is arranged inside the housing (1), a first connection rod (5) is fixedly connected to an outer side wall of the housing (1), an end of the first connection rod (5) away from the housing (1) is rotationally connected to a rotating shaft (7), an outer end of the rotating shaft (7) is fixedly connected to a second connection rod (8), the upper end of the second connection rod (8) is provided with a fixing block (11), a placement groove is provided in the lower end of the fixing block (11), an electric motor (13) is fixedly connected to an inner side wall of the interior of the placement groove, a gear (9) is fixedly connected to an output end of the electric motor (13), a groove is provided in an end of the second connection rod (8) close to the electric motor (13), a rack (10) is fixedly connected to an inner side wall of the groove, the rack (10) is in meshing connection with the gear (9), and a plurality of L-shaped rods (14) are fixedly connected to an outer end of the second connection rod (8).\nD: An LED street lamp enabling convenient adjustment of lighting angle and lighting brightness, comprising a power source, a vertical column, a lamp body (1), and a lamp cover (2), a baffle (3) being arranged inside the lamp body (1), a driver (5) being arranged above the baffle (3), and a control box (6) being arranged below same, a controller (7) being arranged inside the control box (6), a fixed light panel (9) and a moving light panel (10) being arranged below the control box (6), the fixed light panel (9) being fixedly connected to the control box (6) by means of a fixing rod (8), the fixed light panel (9) being connected to the moving light panel (10) by means of a transmission mechanism, the transmission mechanism comprising a linking rod (14) and a telescopic rod arranged between the fixed light panel (9) and the moving light panel (10), LED light bulbs (12) being arranged below the fixed light panel (9) and the moving light panel (10), a switch box (11) being arranged on the moving light panel (10), the driver (5), the switch box (11) and the controller (7) all being electrically connected, the driver (5) and the switch box (11) both being electrically connected to the LED light bulbs (12), and the controller (7) being electrically connected to a telescopic member (16). Adjustment of the lighting angle is thus facilitated, meeting the requirements for light concentration and diffusion effects, and the switching on or off of the lightbulbs (12) can be controlled, thus adjusting the lighting brightness.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA heat pipe steam generator, comprising a boiler (1), a generator (2), and a combustor (3). A combustion end of the combustor (3) extends into a hearth (11) of the boiler. The boiler (1) is connected to the generator (2). The generator (2) is provided with a heat pipe (21). A primary side channel is formed outside the heat pipe (21). A secondary side channel is formed in the heat pipe (21). Heat exchange is made between a medium in the primary side channel and a medium in the secondary side channel. The boiler (1) is connected to the primary side channel of the generator (2) to form a primary side circulation loop which is vacuum-tight. The height of the minimum level of the primary side channel is greater than the height of the maximum level of the boiler (1). The height difference between the level of the primary side channel and the level of the boiler (1) ensures that in one primary circulation loop, the aqueous solution in the generator (2) can still be returned to the boiler (1) in the case that no power is provided by a water pump so as to protect the external oxidizing gas from being sucked into a primary side water circulation loop and prolong the service life of the boiler (1).\nA: A tower-type boiler with a primary reheater and a secondary reheater is provided. A super heater of the boiler comprises a low-temperature super heater and a high-temperature super heater (31). A main steam system flow of the boiler comprises the following steps: firstly, feeding water enters into a front flue coal economizer and a rear flue coal economizer (10) which are arranged in parallel, then water came from the outlets of the coal economizers (10) enters into water-cooling walls (1, 2) from the lower part of a hearth (6), wherein the outlets of the water-cooling walls (1, 2) are connected to a separator (19), and at last, the steam came out of the separator (19) enters into the low-temperature super heater and the high-temperature super heater (31) successively. Along the steam flow direction which is from a low temperature to a high temperature at the side of the steam, the primary reheater successively comprises a primary reheating low-temperature reheater (11) and a primary reheating high-temperature reheater, and the secondary reheater successively comprises a secondary reheating low-temperature reheater (12) and a secondary reheating high-temperature reheater. Furthermore, the primary reheater and the secondary reheater are in parallel with each other in a perpendicular flue.\nB: Disclosed is a combined heat exchanger set comprising a compression-type heat pump (1), a suction-type heat pump (2), one or more water-water heat exchangers (3) and a connecting pipeline, wherein the connecting pipeline is divided into a primary side pipeline (41) and secondary side pipeline (42), the connection mode of the primary side pipeline is in incremental series, i.e. the primary side pipeline is successively connected to a generator of the suction-type heat pump, the water-water heat exchanger, an evaporator of the suction-type heat pump and an evaporator of the compression-type heat pump, and the connection mode used for the secondary side pipeline is in series after the first parallel connection, in incremental series or independently separate to connect to a heat user. The heat exchanger set can use the heat of a primary network of hot water in steps, thereby substantially increasing the temperature difference in supply and return water in the primary network of hot water of a central heating system, reducing the initial investment in the pipeline system and electricity wastage in running a water pump, improving the utilisation efficiency of combined energy resources of the system, and lowering heating costs.\nC: Disclosed is a secondary side passive waste heat removal system, comprising a steam pipeline (140) and a water supply pipeline (160), wherein the steam pipeline (140) hermetically penetrates a containment vessel and is connected to an outlet of a steam generator (130) arranged in the containment vessel as well as a cooling water tank (150) arranged outside the containment vessel, the water supply pipeline (160) hermetically penetrates the containment vessel and is connected to the cooling water tank (150) and an inlet of the steam generator (130), and the steam pipeline (140), the water supply pipeline (160) and the cooling water tank (150) form a circulating channel so as to remove decay heat in the containment vessel out of the containment vessel. The steam pipeline (140) and the water supply pipeline (160) are directly connected to the steam generator (130) on the secondary side so as to prevent the steam generator (130) from drying out, and coolant leakage, in the event of malfunction. The cooling water tank (150) is arranged outside the containment vessel, such that more available space of the containment vessel is obtained. Moreover, by using an open circuit, there is no need to arrange a heat exchanger, required by the conventional passive waste heat removal system, in the cooling water tank (150), and no emergency equipment is required, such that the expenditure on design and construction of the system is lowered.\nD: A rapid cooling system and method for a high-temperature gas cooled reactor nuclear power station primary loop after a thermal test. The system comprises a reactor pressure vessel (1), a steam generator (2), a helium-water cooler (4), a gas-water separator (5), a helium compressor (6), an auxiliary steam pipeline (8), a first valve group (9), a second valve group (10), a high-pressure heater (12), a water-feeding pump (11), a fifth valve group (13), a steam-water separator (14), a condenser (18), a fourth valve group (16), a third valve group (15), and a waste liquid tank (17). According to the system and the method, the problem of an uncontrollable thermal test rate in a natural cooling process can be solved, and a cooling time period is shortened; moreover, a secondary side of the steam generator (2) can participate in the thermal test, so that the reliability of a secondary loop system is verified in advance; moreover, the secondary side pipeline of the steam generator (2) can be subjected to water vapor purging by utilizing the thermal test process, so that the secondary loop feed water quality is qualified.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA steam boiler and a steam car washer comprising same. The steam boiler comprises: a combustion boiler (10) provided with a heating component (20) so as to allow the water flow to flow to the heating component (20) for heating; a water storage cavity (30) provided at an outer side of the combustion boiler (10) and communicated with the heating component (20) so as to allow the water to flow through the water storage cavity (30) and then flow to the heating component (20) for heating and to spill the water vapor generated by heating the water flow into the water storage cavity (30); and a descaling device (40) mounted outside the combustion boiler (10) and communicated with the water storage cavity (30) so as to transport a descaling agent in the descaling device (40) into the water storage cavity (30) and the heating component (20) to remove the limescale therein, thereby solving the problem in the prior art of the low limescale washing efficiency in the steam boiler.\nA: A point-contact disinfecting and itch-relieving heat application device, comprising a housing (1), a heating device, and a water outlet portion (3). The housing (1) has an internal water storage chamber (11), and the heating device is used to heat a liquid in the water storage chamber (11). The water outlet portion (3) is disposed at a front end of the housing (1), the water storage chamber (11) is located at the front of the housing (1), and the water storage chamber (11) is in communication with the water outlet portion (3) through a water pipe (12). The housing (1) is provided with a control valve (4) for controlling the water storage chamber (11) to be in communication with or isolated from outside air. The heat application device has the advantages of shortening a water flow path, making it easier to control outlet water temperature, and allowing timely water discharge and discharge termination.\nB: A heat transfer spoiler (60), a volumetric heat transfer device (100), and a water heater, the volumetric heat transfer device (100) comprising: a burner housing (20), having a burning cavity (202) with an open upper end; a burner (30), provided within the burning cavity (202); a liner (10) provided on the upper end of the burner housing (20) and having a water storage cavity (101) therein, the water storage cavity (101) having an upper opening (105) and a lower opening (106), and the side wall of the liner (10) being provided with a heat transfer passage (103) in communication with the burning cavity (202); and a main heat transfer tube (44), provided within the water storage cavity (101), and the upper end and the lower end thereof being sealingly provided within the upper opening (105) and the lower opening (106) respectively.\nC: A urea production apparatus comprises a cabinet (10), an agitation tank (20), a filter portion (30), a water tank portion (40) and a heater portion (50). The agitation tank (20) and the filter portion (30) are disposed within the cabinet (10), and an inlet of the water tank portion (40) is in communication with an outlet of the filter portion (30); the heater portion (50) is disposed within the cabinet (10) and is in communication with an outlet of the water tank portion (40), and an outlet of the heater portion (50) is in communication with the agitation tank (20). The present invention adopts a separate heater portion (50) to heat the water in the water tank portion (40), and then transports the water heated by the heater portion (50) into the agitation tank (20) to produce urea; this configuration enables the heater portion (50) to heat the water in the water tank portion (40) timely, thus effectively increasing the efficiency of the urea production apparatus and satisfying the user needs.\nD: A steam generating device and a clothes care machine. The steam generating device comprises a boiler body (12), a heating device (13) and a scale collecting device (14); the boiler body (12) is provided with a water inlet (121), a steam outlet (122) and a scale collecting opening (123), and the setting height of the scale collecting opening (123) is not higher than a preset water level in the boiler body (12); the scale collecting device (14) comprises a scale collecting cavity (141), the scale collecting cavity (141) communicates with the scale collecting opening (123), and a scale filter screen (142) is arranged at the communication position of the scale collecting opening (123). Since the scale filter screen (142) is a porous structure, same more easily absorbs scales, and the scales are gathered in the scale filter screen and are agitated by a water flow in the boiler body (12). The scales which are gathered to form larger particles may enter the scale collecting cavity (141) by means of the scale filter screen (142), thereby effectively solving the problems of uneven heating and potential safety hazards caused by scales easily accumulating on the surface of the inner side of the boiler body (12).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA push-out portable arc igniter. Ignition heads (19) are provided at the front end of an ignition push device (11); a lighting lamp (18) is horizontally arranged in parallel with the ignition heads (19); the ignition heads (19) are configured to be two parallel cylinders, and a ceramic fixing device (23) is provided on each surface thereof; a main body plastic member (5) of the ignition push device (11) is configured to be a rectangular box with open upper and right surfaces; a high voltage package (6) and a circuit board (9) are provided in the main body plastic member (5); and a polymer lithium battery (8) is provided above the circuit board (9); a lighting lamp switch (7) is provided at the center of the left end of the circuit board (9); a power safety switch (1), a charging indicator (3), and a USB charging socket (2) are provided at the right end of the circuit board (9); a tail plastic member (15) is configured to be in an L shape; and the tail plastic member (15) is connected to the ignition push device (11) by means of a spring (12). The igniter has a simple and compact structure as well as a small size and a light weight, is easy to carry, is easy to use, is controlled by dual-switch, has good safety performance, can effectively avoid misoperation, can eliminate potential safety hazards, has a portable charger, can be repeatedly charged, and has a long service life.\nA: An intelligent LED bulb comprises a bulb holder (1), a bulb casing (2), and a bulb shade (3). An LED circuit board (4), a control PCB board (41), a switch mechanism (5) connected to the LED circuit board (4), a chargeable battery (6), and a power PCB board (61) are provided inside the bulb casing (2). The switch mechanism (5) comprises a switch positioning member (51), a switch PCB board (52), two switch metal domes (53), a copper needle (54), a copper needle limiting member (55), and a spring (56). The LED bulb has the chargeable battery (6) and the switch mechanism (5), and the chargeable battery (6) is provided inside the LED bulb, thereby achieving a simple and compact structure and small size. The switch mechanism (5) automatically implements the switch control with the assembly and disassembly of the Led bulb, and an external circuit and switch are not required, so that the use is flexible and convenient.\nB: A multifunctional energy-saving LED lamp with multiple charging modes comprises a lamp holder (1), a retractable connecting rod (2), a lamp housing (3), a lamp shade (4), an LED bulb and a fixed lamp panel (5), a DC jack (10), a circuit board (6) and a lithium battery (7). The retractable connecting rod (2) is disposed between the lamp holder (1) and the lamp housing (3). The lithium battery (7) is disposed inside the retractable connecting rod (2). The LED bulb and the fixed lamp panel (5) are disposed at the top of the lamp housing (3). The lamp shade (4) is disposed on a surface at the top of the lamp housing (3). A power switch (8), an indicator and the DC jack (10) are disposed on a side surface of the lamp housing (3). The circuit board (6) is disposed in the lamp housing (3). The circuit board (6) comprises an AC-DC constant voltage power supply module, a lithium battery charging management module, a DC-DC constant current power supply and an intelligent module. The lamp housing (3) is further provided thereon with a solar cell panel, a vehicle-charging port and a mains port. The lamp housing (3) is further provided therein with a rechargeable battery, a GPS chip, a wireless transmission module and a wireless reception module. The multifunctional energy-saving LED lamp is integrated with the functions of an illuminating lamp, a torch, an emergency lamp and the like, and can be charged in various ways, for example, through solar energy, a mobile phone charger, or a vehicle charger.\nC: The present utility model relates to a new energy lighter. An electronic oscillation circuit, a boost DC/DC transform circuit, an illumination circuit, and a cash detecting circuit are provided in the housing of the lighter, a switch is provided at one side of the housing, and an illumination light and a cash detecting light are also provided at the bottom of the housing. The present lighter can carry a direct current power source as the ignition source, generate a high frequency pulse current by way of an oscillation circuit, generate a high frequency voltage across two ends of a transformer coil, perform arc discharge outputting via a high voltage discharge probe to obtain connected high voltage discharge sparks, and can be applied in any weather environment to ignite an inflammable substance. The power source outlet of the present lighter can supply power to various models of mobile phones or digital products by being equipped with a universal plug container and a conversion plug, and at the same time can be used for illumination and cash detection. The present utility model can be used safely, is environmentally friendly, can save energy, and at the same time has a small volume, is portable, and is convenient and practical.\nD: A luminous ornament having a structure comprising an ornamental surface-replaceable ornament (1), a structural member (2), LED lamps (3), a circuit board (4), a control module (5), a rechargeable battery (6), a charging port (7), a button switch (8), and a replaceable fixing clip (9). The structural member (2) is fixedly connected to the ornamental surface-replaceable ornament (1) and is located on left and right sides below the ornamental surface-replaceable ornament (1). The circuit board (4) is embedded in the structural member (2) and is located inside the ornamental surface-replaceable ornament (1). The LED lamps (3) are connected to the circuit board (4) by means of power lines. The control module (5) is located on the left end inside the ornamental surface-replaceable ornament (1). The rechargeable battery (6) and the circuit board (4) are provided inside the control module (5). The charging port (7) and the button switch (8) are connected to the circuit board (4) by means of power lines. Compared with the prior art, by configuring lamps to change in various modes, such as a color changing mode and a light chasing mode, the technical solution greatly improves the aesthetic property and the playability, so that the ornament is popular at night.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA low pollution combustor and combustion control method therefor. The low pollution combustor comprises a combustor dome (12), the combustor dome (12) comprises a main combustion stage (14) and a pre-combustion stage (15), and the main combustion stage (14) and the pre-combustion stage (15) are arranged together in a concentric manner; the pre-combustion stage (15) is in the center, and the main combustion stage (14) is arranged on the periphery of the pre-combustion stage (15); the main combustion stage (14) comprises a main combustion stage channel, a main combustion stage swirler (30) provided in the main combustion stage channel, and a pre-film plate (31); the pre-film plate (31) is divided into an outer-layer pre-film plate (31b) and an inner-layer pre-film plate (31a) in a radial direction. A position and a spraying direction of a fuel spaying point (25) of the main combustion stage (14) are configured to control main combustion stage fuel to be sprayed into the main combustion stage channel by means of main combustion stage fuel nozzle holes (25a, 25b), a part of the main combustion stage fuel forms main combustion stage direct spray oil mist, the other part is hit on the inner-layer pre-film plate (31a) close to the inner side of the main combustion stage channel, or is separately hit on the two layers of pre-film plates (31a, 31b). According to the low pollution combustor and control method therefor, the double layers of pre-film plates (31a, 31b) are coordinated with the position and the spraying direction of the fuel spaying point (25) in different working conditions, so that combustible mixed gases are distributed more evenly in a flame tube.\nA: A low-nitrogen oxide straight-through pulverized coal combustion apparatus applicable to a lean coal-fired boiler comprises main combustor groups that are disposed in corner-tangential combustion manner at the four corners of a furnace of the lean coal-fired boiler, cooperate with a water-cooling wall anti-high temperature anti-corrosion system of the furnace, and are of the same structure with the system, each main combustor group comprising pulverized coal combustors and secondary air nozzles (AA, AB, BC, CC, DD, DE, EF, FF1, and FF2) that are disposed at a spacing. The upper portion of each main combustor group is provided with a corresponding over fire air separation group. A layer of a prechamber reverse-flow combustor is disposed every n layers of pulverized coal combustors, a jet flow rotation direction of the main combustor group is the anticlockwise direction, a jet flow rotation direction at the secondary air nozzle closely neighboring to the upper portion of the prechamber reverse-flow combustor is the clockwise direction, and the diameter of the imaginary tangential circle is greater than that of the main combustor. The over fire air separation group is formed by an upper group and a lower group, the jet flow of the lower group is a large imaginary tangential circle, and the upper group is in an opposed firing manner. The combustion apparatus can implement stable combustion and minimize the discharge of oxynitride.\nB: A supercritical CO2 boiler and a boiler system. The boiler comprises a main combustion chamber (2), an upper hearth (3), a furnace arch (4), and a flue; the cross section of the main combustion chamber (2) is circular, oval, or N-sided, and N>4; the main combustion chamber (2) is provided with at least four combustor groups; each group of combustor nozzles corresponding to each combustor group comprise a recirculating air nozzle (15), a primary air nozzle (13), and a secondary air nozzle (14); side recirculating air nozzles (16) which are symmetrically distributed are provided on the two sides of each primary air nozzle (13); the recirculating air nozzles (15) and the side recirculating air nozzles (16) are used for feeding recirculating flue gas or mixed gas of the recirculating flue gas and secondary air into the main combustion chamber (2); the primary air nozzles (13) are used for feeding primary air or mixed gas of the primary air and the recirculating flue gas into the main combustion chamber (2); and the secondary air nozzles (14) are used for feeding secondary air or mixed gas of the secondary air and the recirculating flue gas into the main combustion chamber (2), such that the load of the supercritical CO2 boiler and the load of the boiler system are uniform, and high-temperature corrosion, coking and slagging on the wall surface of the boiler are avoided.\nC: A gas premix burner and a gas water heater. The gas premix burner (10) is provided with a burning direction (F), the gas premix burner (10) is matched with a premix cavity arranged at the upstream of the burning direction (F) of the gas premix burner (10), and gas and air are burned via the gas premix burner (10) after being mixed in the premix cavity. The gas premix burner (10) comprises: a burner substrate (11), main burning holes (13) being arranged on the burner substrate (11). Auxiliary burning holes (15) arranged along the burning direction (F) at the downstream of the main burning holes (13) are also provided on the burner substrate (11). Auxiliary flames of the auxiliary burning holes (15) and main flames of the main burning holes (13) intersect. The main burning holes (13) are arranged along the burning direction (F) at the upstream of the auxiliary burning holes (15) so that the main flames are arranged at the upstream of the auxiliary flames, it is easier for the auxiliary flames and the main flames to intersect, and opposed firing of the flames is formed between the auxiliary flames and the main flames to implement a stable flame effect.\nD: A combustion chamber of a gas turbine engine. The combustion chamber comprises: an annular flame pipe (10), wherein the annular flame pipe (10) forms an annular combustion cavity (14), and the annular combustion cavity (14) defines an axial direction and a circumferential direction surrounding the axial direction; and several nozzles (12) disposed within the annular combustion cavity (14), uniformly arranged in the circumferential direction, and configured to jet a mixed gas of a fuel gas and the air into the combustion cavity (14). Each of the nozzles (12) is provided with at least one mixed gas outlet (30) used to jet the mixed gas toward an adjacent nozzle (12). One flame barrier structure is disposed between two adjacent nozzles (12) to prevent a flame generated from the mixed gas from being directly jetted to the adjacent nozzle (12). The combustion chamber of a gas turbine engine of the present invention has a simple structure, reduces damage risks of components to the lowest level, and improves combustion efficiency thereof.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn oven device defines a vertical direction, a transverse direction, and a horizontal direction. The vertical direction is perpendicular to the transverse and horizontal directions. The oven device comprises a housing extending in the transverse direction between a first side part and a second side part. The housing also extends in the vertical direction between the top part and the bottom part. The housing defines an upper cooking cavity located adjacent to the top part of the housing and a lower cooking cavity located adjacent to the lower part of the housing. The oven device also comprises: a single heat source in thermal communication with the external environment around the oven device by means of natural convection; and a fan, which is operable to enable direct thermal communication between the single heating part and one or both of the upper cooking cavity and the lower cooking cavity by means of forced convection.\nA: A simulation electronic candle, comprising a casing (1), a flame piece (21) provided in an opening at the top of the casing via a transverse support rod (23), a light emitting element (4) provided on one side of the opening and a disturbance device (3) provided in the casing; the flame piece is connected crosswise to the support rod through a vertical swing link (22), and the upper portion of the swing link extends into the lower portion of the flame piece; part of the upper and the lower portions of the flame piece is positioned above the opening; the light projection direction of the light emitting element intersects with the surface of the flame piece. The static design of the improved flame piece assembly makes the flame piece exhibit unique appearance features in the shape of a candlewick, thus having better static simulation effect.\nB: A novel air oven, comprising a housing (1), a liner (3) disposed in the housing (1) and having a main cooking cavity (2), and at least one vertical partition plate (5) detachably arranged in the liner (3). The vertical partition plate (5) partitions the main cooking cavity (2) into two or more sub-cooking cavities (4) arranged left and right; at least one heater (6) is disposed in each sub-cooking cavity (4); the upper part of each sub-cooking cavity (4) is provided with a fan (7) located in the housing (1) and communicated with the corresponding sub-cooking cavity (4). With the present air oven, the main cooking cavity (2) can be partitioned, by means of the vertical partition plate (5), into two or more sub-cooking cavities (4) arranged left and right, so that the air oven can be used to cook two or more food ingredients requiring different heating temperatures and durations.\nC: An induction dryer device having a bearing system, comprising a casing. A drum is positioned inside the casing, and can rotate about an axis inside the casing. The induction dryer device further comprises an induction heating element and a support assembly. The support assembly is positioned adjacent to the drum inside the casing and comprises a plate. The induction heating element is positioned on the plate. A bearing is mounted to the plate. When the drum rotates about the axis, the bearing contacts the drum such that the bearing spaces the plate apart from the drum in a radial direction perpendicular to the axis.\nD: A wall-mounted air conditioner indoor unit, comprising: a machine shell (10), and at least one cross-flow fan (20) and an evaporator (30) which are provided in the machine shell (10), wherein the machine shell (10) is provided with an air inlet (11) and an air outlet (12), and two independent wind deflectors (131, 132) are provided at the air outlet (12), each of the wind deflectors being configured to be controlled to pivot around a rotating shaft thereof; the evaporator (30) is arranged on the at least one cross-flow fan in a covering mode and comprises a first heat exchange section (31), a second heat exchange section (32) and a third heat exchange section (33) which are sequentially connected from back to front; and the third heat exchange section (33) is a V-shaped heat exchange section which extends gradually and obliquely in the direction opposite to the outer side of the at least one cross-flow fan (20) from the two transverse ends of the machine shell (10) to the middle thereof or is a curved surface heat exchange section which gradually protrudes and extends in a bending mode in the direction towards the outer side. The rotating shafts of the two wind deflectors (131, 132) extend obliquely upwards from the two transverse side parts of the machine shell (10) to the middle part of the machine shell respectively, so that the projection of the rotating shafts of the two wind deflectors (131, 132) in the vertical plane perpendicular to the front and back direction form an inverted V shape which inclines gradually upwards from the two transverse ends of the machine shell (10) to the middle thereof.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided are a bathroom safety control system and an air conditioner. The air conditioner comprises: an acquisition module, which is used for acquiring information of a user entering and exiting a bathroom, and a water consumption volume; a storage module, which is used for storing a water consumption volume threshold value corresponding to a normal bathroom activity of the user, and/or a historical water consumption volume-time curve corresponding to a plurality of normal bathroom activities of the user or a preset historical water consumption volume-time curve normal fluctuation range; and a control module, which is used for generating a water consumption volume-time curve according to the water consumption volume and the corresponding time, and outputting alarm information when the water consumption volume exceeds the water consumption volume threshold value corresponding to the normal bathroom activity of the user and/or when the water consumption volume-time curve does not meet the historical water consumption volume-time curve or the preset historical water consumption volume-time curve normal fluctuation range. Therefore, by means of the present invention, a water consumption situation of a user in a bathroom is acquired by means of the air conditioner, whether the user has had an accident is determined according to the water consumption situation, and an alarm is given when an accident occurs.\nA: A water usage pattern-based user profiling method and system, comprising the following steps: (1) collecting water usage data and a user type label of a user; (2) extracting from the collected water usage data the average water usage of several periods to serve as eigenvectors, combining with the type label of the user to construct a training sample set, constructing a depth-stratified fuzzy system on the basis of an automatic machine learning technique, utilizing the training sample set to train the system, thus constructing a classification model; and (3) inputting the collected water usage data of the user into the constructed classification model, thus completing user profiling. The method, by means of user profiling, combines characteristics of individual users and user groups, thus providing individual users with a service of increased accuracy, and implementing a reasonable allocation of resources between areas.\nB: An air conditioner intelligent control method and device and an air conditioner. The method is used for controlling air conditioners in other rooms outside a bathroom, and the method comprises: receiving a user instruction; starting a water heater in a bathroom in a linkage mode according to the user instruction; when the water heater reaches set parameters, issuing a reminder; monitoring a bathing state of a user in the bathroom; and controlling the air conditioner to operate according to the bathing state of the user. According to the air conditioner intelligent control method and device and the air conditioner, the air conditioner and the water heater are controlled in the linkage mode to form an intelligent home control method for bathing of a user, the water heater can be started by means of the air conditioner, and a reminding function is additionally set; in addition, the air conditioner is controlled to operate according to the bathing state of the user, the temperature in a room can be regulated and controlled by means of the air conditioner when the user takes a bath, and the user is prevented from feeling a large temperature difference when walking into the room after taking the bath, thereby reducing the risk of catching a cold, and improving the comfort level.\nC: Provided is a method for controlling a water heater, said method for controlling a water heater comprising the following steps: obtaining a first water consumption parameter corresponding to a user within a first time period, said first water consumption parameter comprising a first water consumption amount and a first water temperature, said first water consumption amount being determined according to water reliability; according to the first water parameter and the heating power of the water heater, determining a target advance heating time corresponding to the first time period of the water heater; according to the target advance heating time, controlling the operation of the heating device of the water heater.\nD: A sewage pipe network real-time simulation method based on water supply Internet of Things data drive. The method involves an offline module and a real-time online module, wherein the offline module integrates a sewage pipe network model and a water supply pipe network hydraulic model, corrects historical water consumption of each node of the water supply pipe network hydraulic model, establishes a correction single-objective optimization model of the sewage pipe network model, and determines a transfer coefficient between the water consumption of each node and an inflow of an inspection well; and the real-time online module realizes the real-time simulation of hydraulic parameters of the sewage pipe network model. The method fills a vacancy in the field of sewage pipe network real-time simulation, and is an important supplement to the field of urban drainage pipe network management research; and important technical support is provided for the management of sewage pipe network systems, and the method has good value in promotion and practical engineering application.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn evaporative air cooler comprises: a housing (1), wherein an accommodation cavity (2) having an opening is provided on the housing (1), and a wet curtain (12) can be assembled in the accommodation cavity (2). A water distribution structure (3) is provided above the accommodation cavity (2) and a water receiving device (4) is movably provided on an inner wall of the accommodation cavity (2). The water receiving device (4) comprises a water receiving cavity (13) having an opening facing the water distribution structure (3). When the wet curtain (12) is not assembled in the accommodation cavity (2), the water receiving cavity (13) is located directly below the water distribution structure (3), and is in a water receiving state; when the wet curtain (12) is assembled in the accommodation cavity (2), the water receiving cavity (13) is located obliquely below the water distribution structure (3), and is in a non-water receiving state. The accommodation cavity (2) is provided on the housing (1)/ The wet curtain (12) and the water receiving device (4) are assembled in the accommodation cavity (2), such that when a user does not need airflow of a low temperature, or forgets to install the wet curtain (12), the water receiving cavity (13) of the water receiving device (4) is provided directly below the water distribution structure (3) so as to receive water output by the water distribution structure (3), and store same in the water receiving cavity (13), thereby preventing water from spattering in the evaporative air cooler when the wet curtain (12) is not assembled, and avoiding a safety risk caused by water spattering on an electrical component.\nA: Disclosed is a portable cooling fan, comprising a cooling fan body (1) and an externally connected bottle (2), wherein the bottle (2) is a commercially available mineral water bottle or a beverage bottle, a water tank (11) is arranged at the bottom of the cooling fan body (1), and a water receiving opening (111) of the water tank (11) is exposed from a housing of the cooling fan body (1). The portable cooling fan is characterized by further comprising a bonnet (3) capable of being connected to a bottle mouth of the bottle (2), a connecting part (31) capable of being connected to the bottle mouth of the bottle (2) is formed at the upper end of the bonnet (3), a first connecting port (311) capable of being adapted to be inserted into the bottle mouth is formed in the connecting part (31), an inserting part (32) capable of being adapted to the water receiving opening (111) of the water tank (11) is formed at the lower end of the bonnet (3), and when the bottle (2) is connected to the water receiving opening (111) of the water tank (11) by means of the inserting part (32) of the bonnet (3), the interior of the bonnet (3) is communicated so as to enable the bottle (2) to be in water communication with the water tank (11).\nB: A kitchen appliance, comprising a water overflow structure, the water overflow structure being arranged in the main body of the kitchen appliance, a motor (1) being installed inside the main body, a main body upper cover (2) integrally connected with the main body for placing a container cup assembly being disposed above the motor (1), a motor shaft of the motor (1) having a transmission connection to a clutch assembly (3), a base (4) being mounted on the lower end of the main body, and the water overflow structure comprising: a main body upper cover (2) drainage structure, comprising at least one side drainage hole (5) disposed at the edge of the main body upper cover (2) and a first water-receiving component for transferring liquid in the side drain hole (5); and an interference drainage structure, comprising a water-receiving plate (6) for receiving liquid overflowing from the gap between the clutch assembly (3) and the main body upper cover (2), and a second water-receiving component for transferring the liquid in the water-receiving plate (6). Multiple drainage methods are used for drainage, increasing the safety of use.\nC: An LED spotlight comprising one or more LED spotlight bodies. The LED spotlight body comprises a housing (1), a light base (2), a heat sink (3), a fan (4), a light plate (5), an LED chip (6), a lens (7), a lens plate (8), and a pressing ring (9). A fan plate (30) is mounted within the housing (1). An air outlet (301) is provided on the fan plate (30). The fan (4) is mounted on the fan plate (30) corresponding to the air outlet (301). The light plate (5) is mounted within an accommodating cavity (24) on the light base (2). The LED chip (6) is mounted on the light plate (5). The lens plate (8) is mounted within the accommodating cavity (24). The lens (7) is arranged between the light plate (5) and the lens plate (8). The pressing plate (9) is fixed on top of the light base (2). A cavity (401) is provided between the bottom of the housing (1) and the fan plate (30). An air outlet channel (12) in communication with the cavity (401) is provided on the housing (1). Air inlet channels (11) are provided above the fan plate (30) on the housing (1). The air inlet channels (11) are arranged opposite. The structure is capable of increasing heat dissipation performance.\nD: Disclosed are an accommodation device for a stroller, and a stroller having the accommodation device. The accommodation device comprises a seat assembly (3) and an accommodation cavity (1), wherein the accommodation cavity (1) comprises a bearing portion (11) and a flexible circumferential enclosing portion (12), two opposite ends of which are both open ports; one open port of the circumferential enclosing portion (12) is fixedly covered by the bearing portion (11), and an upper open port forms an opening, in communication with the outside, of the accommodation cavity (1); and the accommodation cavity (1) can be rotated relative to the seat assembly (3) in a vertical plane so as to be switched between a lying state and a sitting state. The accommodation device further comprises at least one flexible adjustment strip (2), one end of the adjustment strip (2) being fixed to the seat assembly (3), and the other end thereof being fixed at a position, close to the opening, on a first side portion (121). By taking the direction of a rotary shaft of the accommodation cavity (1) as a transverse direction and by taking the direction perpendicular to the direction of the rotary shaft of the accommodation cavity as a longitudinal direction, when the accommodation cavity (1) is rotated to be in the sitting state relative to the seat assembly (3) in the vertical plane, a side, arriving at the topmost position, of the circumferential enclosing portion (12) of the accommodation cavity is the first side portion (121) of the circumferential enclosing portion (12), and a side opposite the first side portion (121) is a second side portion (122) of the circumferential enclosing portion (12). The bearing portion (11) has at least two areas which can be folded in the transverse direction and which form a first portion (111) relatively close to the first side portion (121) and a second portion (112) relatively far away from the first side portion (121). The bearing portion (11) is arranged above the seat assembly (3) in such a way that the bearing portion can move on the seat assembly (3). The adjustment strip (2) is tensioned between the seat assembly (3) and the first side portion (121) when the accommodation cavity (1) is in the sitting state. During the process of the accommodation cavity (1) being rotated to be in the sitting state, the second portion (112) moves to a position supported by the seat assembly (3) to form a seat portion, and when the accommodation cavity (1) is rotated to be in the sitting state, the first portion (111) is supported by the tensioned adjustment strip (2) to form a backrest portion at an angle to the second portion (112).", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA housing assembly (100) and a phase changing water heater (1000). The housing assembly (100) comprises: a housing body (10); the housing body (10) comprises a front housing (12) and a rear housing (13) which are connected to each other, and a chamber is formed by means of the front housing (12) and the rear housing (13); a glass plate (14) and a connecting plate (15) are arranged on a front face of the front housing (12), the glass plate (14) being arranged on the connecting plate (15), and a gap structure being arranged between the connecting plate (15) and the front housing (12).\nA: Disclosed are an instantaneous electric water heater housing (100) and an instantaneous electric water heater (1000). The instantaneous electric water heater housing (100) comprises: a rear shell (110), a side wall of the rear shell (110) being provided with a projection (111) projecting outwards; and a front shell (120), the front shell (120) being connected to the rear shell (110), and a free end face of the projection (111) bearing against a side wall of the front shell (120).\nB: The utility model provides an intelligent mirror waterproof structure. The intelligent mirror waterproof structure comprises a front shell, a rear shell and a connecting line, wherein the front shell and the rear shell are connected to form a waterproof shell, and the connecting line is arranged at the joint between the front shell and the rear shell in a penetrating manner; a sealing strip is arranged between the front shell and the rear shell, the outer wall of the connecting line is movably sleeved with a sealing ring, and the sealing ring is mounted between the connecting line and the waterproof shell. The utility model further provides an intelligent mirror comprising the intelligent mirror waterproof structure. By using the intelligent mirror and the waterproof structure thereof provided in the technical solution of the present utility model, the sealing strip being used between the front shell and the rear shell for sealing, the production cost is reduced, the sealing strip is more convenient to mount, and in turn the man-hours for mounting the sealing strip are reduced, therefore improving the operation efficiency; and the sealing ring is movably arranged on the connecting line, so that the position of the sealing ring can be adjusted as required when the connecting line is mounted, the adjustment is convenient, and the sealing ring is more convenient to mount.\nC: An axial piston pump, comprising an end cover (15), a front cover (9), a pump shaft (10) provided within the front cover (9), a back cover (4), a swashplate (17) and a cylinder body (8) installed inside the back cover (4). The end cover (15), the front cover (9), and the back cover (4) and the cylinder body (8) are fixedly connected in sequence. One end of the pump shaft (10) facing away from the cover is connected to swashplate (17). The piston pump is further provided therein with a cross-shaped wobble plate (18) and a piston module (13). The cylinder body (8) is provided therein with a piston hole, a valve hole, a pressing output valve group (12) and a pressing input valve group. The pressing output valve group (12) and the pressing input valve group are disposed within the valve hole. One end of the piston module (13) is inserted in the piston hole, and another end of the piston module (13) is connected to the cross wobble plate. The piston pump, by providing a slipper plate, inserts and integrates a return plate and a slipper, and a slipper and a piston ball head of the prior art, decreasing a lateral force of the cylinder body and piston seat, increasing the tilt angle of a swashplate, increasing the return distance of the piston seat, increasing piston pump displacement, improving piston pump efficiency and further simplifying cylinder body design.\nD: An enclosure (1) for use on a bicycle power-boost apparatus, comprising: a front housing (11), a rear housing (20), a fan-shaped plate (16), and an accommodating cavity (21). The front housing (11) and the rear housing (20) are provided with opposite bolt holes (17). Bolts are inserted into the bolt holes (17) to fit together the front housing (11) and the rear housing (20) to define the accommodating cavity (21). The front housing (11) and the rear housing (20) are provided with one or multiple opposite shaft holes (13, 14, and 15). The fan-shaped plate (16) is arranged on top of the front housing (11) and/or of the rear housing (20). The fan-shaped plate (16) is provided thereon with the bolt holes (17). The enclosure (1) is capable of replacing a bicycle five-way fitting and of accommodating complex bicycle power-boost apparatus.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a fan heater comprising a housing (1), an air inlet (2) and air outlet (3) arranged on the two ends of the housing (1), and a blowing assembly (4) and heating assembly (5) arranged inside the housing (1); the heating assembly (5) is arranged at the blower vent position of the blowing assembly (4); the position of the air outlet (3) corresponds to the position of the blower vent; the position of the air outlet (3) on the housing (1) is provided with a flow-guiding plate (6) for directing the warm air delivered by the air outlet (3) in at least two directions.\nA: An air conditioner with a multidirectional air outlet function, comprising a housing (1) as well as a first centrifugal impeller (2) and a second centrifugal impeller (3) provided within the housing (1) and adjacent to each other. Air outlets (21, 22, 23, 24, 31, 32, 33, 34) are provided on the upper, lower, left, and right sides of the first centrifugal impeller (2) and the second centrifugal impeller (3) in the radial direction, and a central air outlet (4) is provided on the housing (1) between the first centrifugal impeller (2) and the second centrifugal impeller (3) and along the tangential direction of each of the two impellers. The structure expands the positions of air outlets, and enlarges the range of air outlet, thereby satisfying the requirements of a wide air supply range and effectively improving the comfortableness of air supply. Also disclosed is an air outlet control method of the air conditioner with a multidirectional air outlet function.\nB: An all-around adjustable unit heater, comprising a housing (1). An air inlet chamber (2) is disposed in the housing (1), the bottom of the housing (1) is provided with an air inlet (31) in communication with the air inlet chamber (2), and a plurality of air outlets (32) are disposed on side walls of the air inlet chamber (2) in an annular configuration. A blocking piece assembly (4) is disposed on the housing (1). The blocking piece assembly (4) comprises a plurality of blocking pieces (41) respectively matching the plurality of air outlets (32) to control the opening and closing thereof, and an adjusting mechanism (42) cooperating with the blockings (41) for horizontally or longitudinally or aslant opening the air outlets (32). The plurality of air outlets (32) are all further provided with air outlet assemblies (5) thereon, and the air outlet assemblies (5) are located outside the housing (1). A heater (7) is disposed in the air inlet chamber (2) or in each air outlet assembly (5), and a fan (8) is disposed in an air inlet end of the air inlet chamber (2) or in each air outlet assembly (5). The all-around adjustable unit heater is simple in overall structure, and has the function of adjusting the opening and closing of the air outlets (32), thereby solving the problem in a conventional unit heater of being unable to implement all-around air supply for heating.\nC: Disclosed is a wall-mounted type indoor unit for an air conditioner, comprising: an enclosure (10), having an air inlet (11) and an air outlet (12) extending transversely along the enclosure, an air deflector (13) being disposed at the air outlet (12) for adjusting the opening state and/or the air outlet direction of the air outlet (12); and two separate cross-flow fans (21, 22) arranged transversely in the enclosure (10) side by side; each of the cross-flow fans (21, 22) is configured to be controlled to rotate around its own rotating shaft; the rotating shafts of two cross-flow fans (21, 22) obliquely extending forwards from two transverse ends of the enclosure to the middle of the enclosure respectively such that projections of the rotating shafts of two cross-flow fans (21, 22) in a horizontal plane form a forward gradually-inclined V shape from two transverse ends of the enclosure to the middle and the air outlet direction of each of the cross-flow fans (21, 22) faces towards the front underside of the transverse outer side of the enclosure, thereby making a breakthrough on the limitation of the common arrangement mode of the cross-flow fan to the air supply angle in the prior art, expanding the air supply range of the indoor unit and implementing double-region air supplying in multiple modes.\nD: Disclosed is a wall-mounted air conditioner indoor unit (1), comprising: a housing (10) having an air inlet (11) and an air outlet (12) extending transversely along the housing (10), wherein two separate air guide plates (131, 132) are provided at the air outlet (12) arranged side by side along a transverse direction, each of the air guide plates (131, 132) is configured to pivot about its own axis of rotation parallel to the extending direction of the air outlet (12) in a controlled manner, and the axes of rotation of the two air guide plates (131, 132) are collinear or in parallel; and two separate cross flow fans (21, 22) provided side by side along the transverse direction in the housing (10), wherein each of the cross flow fans (21, 22) is configured to rotate about its own axis of rotation in a controlled manner, and the axes of rotation of the two cross flow fans (21, 22) extend obliquely and frontwards from two transverse ends of the housing (10) towards the middle of the housing (10) respectively, such that the projections of the axes of rotation of the two air guide plates (21, 22) within a horizontal plane form an inverse-V shape gradually inclined frontwards from the two transverse ends of the housing (10) toward the middle of the housing (10). A two-zone air supply of various manner combinations is realized, thus breaking through the limitation of the general arrangement mode of the cross flow fans (21, 22) to the air supply angle thereof, and expanding the air supply range of the indoor unit (1).", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an assembled block type artificial skating rink, comprising: a refrigeration system (1), multiple liquid supply main pipes (42), and multiple gas return main pipes (41) located on the same circuit as the liquid supply main pipes. The multiple liquid supply main pipes converge at a liquid supply main pipe (32), and the multiple gas return main pipes converge at a gas return main pipe (31). The liquid supply main pipe communicates with a refrigeration liquid output end of the refrigeration system via at least one liquid supply riser (22), and the gas return main pipe communicates with a gas recovery end of the refrigeration system via at least one gas return riser (21). The gas return main pipes are each respectively sheathed on the liquid supply main pipes to form multiple groups of sheathed main pipes. The artificial skating rink is split into different block-shaped areas, each area independently being provided with a freezing discharge pipe and a sheathed collection pipe connected with the sheathed main pipes. A refrigeration liquid control valve set is mounted on the liquid supply main pipes, and a gas control valve set is mounted on the gas return main pipes. According to the requirements of use, the skating rink can independently freeze the required area, thereby obtaining the required form for the surface of the ice, effectively saving on energy resources.\nA: A debugging assembly. The debugging assembly comprises: a first main pipeline (10) used for communicating with an indoor unit pipeline and a second main pipeline (20) used for communicating with an outdoor unit pipeline; and branch pipelines (30) enabling communication between the first main pipeline (10) and the second main pipeline (20), and provided with throttling assemblies and switch valves (50), the switch valves (50) being configured to control the connection and disconnection of the branch pipelines (30), wherein there are multiple branch pipelines (30), and some of throttling parameters of the throttling assemblies in the multiple branch pipelines (30) are the same. In a test process, vacuumizing is performed once, multiple branch pipelines (30) are used to perform tests by using throttling parameters of a plurality of different throttling assemblies, and in a test process of any one branch pipeline (30), the other branch pipelines (30) are closed by means of the switch valves (50), so as to prevent a test result of the branch pipeline (30) to be tested from being interfered; and the number of times of vacuumizing is reduced, thereby shortening a test period and increasing the test efficiency.\nB: A gas supply system of a gas bearing for a compressor, an operation method and a refrigeration system. The gas supply system of a gas bearing for a compressor comprises: a first compressor (1) and a refrigeration cycle path in which the first compressor (1) is located, the gas bearing being provided on the first compressor (1); a gas supply tank (3); a gas intake pipe (4), which communicates the gas supply tank (3) with a first portion of the refrigeration cycle path; a gas outlet pipe (5), which communicates the gas supply tank (3) with the first compressor (1); a return pipe (6), which communicates the gas supply tank (3) with a second portion of the refrigeration cycle path; and a regulating valve (61), which is provided in the return pipe (6), the opening of the regulating valve (61) being adjustable so as to regulate the gas flow within the return pipe (6). In a normally stable operating state of the first compressor (1), the gas pressure at the first portion is greater than the gas pressure at the second portion. The gas pressure within a gas supply tank is regulated by means of a regulating valve on a return pipe so as to provide a stable pressure gaseous refrigerant to a gas bearing, the structure is simple, operation and control are convenient, and reliability is high.\nC: An assembled refrigeration device, used for solving the technical problems of existing skating rinks having poor construction quality and ice-making capabilities, the device comprising refrigeration modules. The refrigeration modules comprise a housing (1) and refrigerant conveying pipelines (2); a heat transmission combined structure is formed by the refrigerant conveying pipelines (2) and the housing (1); outward heat conduction and refrigeration are produced by means of the housing (1), and the housing (1) is provided with a splicing device thereon. The multiple refrigeration modules are spliced and combined by means of the splicing devices, and a refrigeration face is formed on the top face of the housing (1) after splicing and combining. The construction work procedures of the skating rink are simplified, and thus the construction speed and quality thereof as well as the ice making capabilities are improved.\nD: A combined cascade refrigeration air-conditioning system and the control method therefor, characterized in that a cold-source system of the cascade air-conditioner is comprised of two or more outdoor combined refrigeration modules (1) arranged on the outdoor side of the cascade air-conditioning system. The outdoor combined refrigeration module (1) is comprised of a vapour-compressing refrigeration circulation circuit for a first refrigerant and a circulation circuit for a second refrigerant. One or more indoor air-cooler modules (3) are provided on the indoor side. A storage and transport unit (2) for the second refrigerant is connected between the outdoor combined refrigeration module (1) and the indoor air-cooler module (3) via a liquid collecting pipe (4), a liquid supply main pipe (5) and an air returning main pipe (6) so as to constitute a closed circulation system. The air-conditioning system configures the number of indoor and outdoor modules based on the designed thermal load of the object to be air-conditioned, regulates the refrigerating capacity precisely, and meets the thermal control requirements of all kinds of data rooms and electronic apparatuses; the system can make full use of the positive indoor-outdoor temperature difference in winter and transition seasons to discharge heat at a low cost, thereby achieving the energy-saving of the air conditioning system.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA liquid gas industrialized application system, comprising: an air separation liquid gas generating device (1), which is used to produce liquid oxygen, liquid nitrogen and/or liquid argon; a cold energy utilization device, which absorbs cold energy of the liquid oxygen and/or liquid nitrogen to directly cool items that need cooling or uses the freezing point of a refrigerant to store the items; a potential energy utilization device, which uses the gasification and expansion of the liquid oxygen and/or liquid nitrogen to generate pressure to do work; a characteristic utilization device, which stores nitrogen in tanks or carries out an industrial application according to the characteristics of nitrogen, and stores oxygen in tanks or carries out an industrial application; a chemical product utilization device, which uses oxygen to produce ozone, and uses the ozone to produce hydroxyl radicals; and an oxidation device, which sterilizes and/or decomposes polymer compounds on the basis of the strong oxidizing properties of the hydroxyl radicals.\nA: A laundry treatment device (10), comprising: an ozone generator (100) used for generating ozone; an air pump (102) connected to the ozone generator (100) and used for driving ozone; a laundry treatment drum (104); and a catalyst cavity (106) in communication with the laundry treatment drum (104), further in communication with the ozone generator (100), and used for accommodating a catalyst, the catalyst being used for performing a chemical reaction with ozone and water. According to the technical solution, in the washing process, ozone and a hydroxyl radical can be simultaneously used to sterilize, and in the drying process, an ozone gas can be individually used to sterilize. Moreover, the dissolving of a detergent can be accelerated, cold water can be used to sterilize, the color contamination of the laundry is prevented, etc.\nB: Provided is a device that uses ozone, hydrogen peroxide, and hydroxyl radicals to sterilize, detoxify and purify indoor air, while simultaneously removing radon gas. The device is provided with a condensing unit (10) having a Peltier structure, and further provided with a device (2) that discharges electricity and generates ozone. The device further has an ultraviolet lamp (9) and a titanium dioxide coating for creating a titanium dioxide physical environment. The device is also provided with generation boxes (3, 5). Ultrasonic waves are used to electrolyze a liquid, such as water, hydrogen peroxide or oxygen, in the generation boxes (3, 5), so as to further generate hydroxyl radicals.\nC: A disinfection and sterilization system and a sterilization method. The disinfection and sterilization system is based on a sterilization gas generating apparatus (11). The sterilization gas generating apparatus (11) comprises a hydroxyl radical generating part, a mixing part, and an enhancing part. Hydroxyl radical mist generated in the hydroxyl radical generating part is introduced into the mixing part and then mixed with ozone. The mixing part is in communication with the enhancing part so that the mixed mist is further introduced into the enhancing part. A first ultraviolet lamp (6) used for exciting and/or degrading ozone is provided within the enhancing part. The sterilization gas generating apparatus (11) is combined with other apparatus and applied in various different application scenarios for disinfecting and sterilizing the environment and human body. The employment of the mixture of ozone and a hydroxyl radical for sterilization not only provides strong oxidation capability and a great sterilization effect, but also is environmentally and physically friendly, avoids the generation of secondary pollution and side effects, and is broadly applicable.\nD: Provided are a method and apparatus for producing nitrogen and oxygen by means of cryogenic distillation of air. Nitrogen products are extracted only from the top of a tower (11). If a customer needs nitrogen with lower pressure, part of pure nitrogen (124) which is partially located at a first nitrogen product pressure is reheated in a main heat exchanger (1), then decompressed to a second nitrogen product pressure by means of a nitrogen expander (23), further reheated by means of the main heat exchanger (1), and output as a low-pressure nitrogen product. The nitrogen expander (23) can be braked by an expander booster (24) for compressing air. By means of the method, nitrogen with different pressures can be suitably produced, and moreover, the energy consumption for producing the pressurized air can be reduced by utilizing the expansion work of nitrogen.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided in the present invention is a refrigerator, comprising a housing. An accommodating area is provided in the housing. A lining of the refrigerator is provided in the accommodating area. A foamed air supply pipe is provided between the lining and the housing. An air chamber is provided in the foamed air supply pipe. Between an air inlet and an air outlet of the air chamber, the air chamber wall of the air chamber is provided as an arc in the direction of airflow, thus ensuring the efficiency of air supply. An overflow groove is provided on the outer surface of the foamed air supply pipe facing the lining. Foam is filled between the overflow groove and the lining. The overflow groove is capable of accommodating some of the foam squeezing against the foamed air supply pipe, thus allowing the foamed air supply pipe to be connected to the lining via the foam, preventing adhesion, increasing production efficiency, and reducing to a certain extent the squeezing of the foam against the foamed air supply pipe. At the same time, because the pipe wall of the foamed air supply pipe is flexible, the air chamber in the air supply pipe is not affected by the foam squeezing against the foamed air supply pipe, thus reducing quality risks.\nA: Disclosed is a refrigerator capable of returning air from a side part of a cabinet thereof, the refrigerator comprising a bottom liner, a plurality of upper liners and two side wall return-air channels, wherein the bottom part of the bottom liner is provided with a cooling chamber, side walls of two sides of the cooling chamber are respectively provided with a side return-air opening, the plurality of upper liners are arranged above the bottom liner in sequence, the front parts of side walls of two sides of each upper liner are respectively provided with an air discharge opening, the two side wall return-air channels are respectively positioned at an outer part of the bottom liner and an outer part of a side wall of one side of the plurality of upper liners, each side wall return-air channel is provided with a connection opening, the lower end of each side wall return-air channel is connected to the side return-air opening, such that return airflows of the plurality of upper liners are introduced into the cooling chamber. In the refrigerator, return airflows of a refrigerating chamber and a variable-temperature chamber can all be led into the cooling chamber, and an independent air supply system of the refrigerating chamber is eliminated, such that the production costs of the refrigerator is reduced; and the side wall return-air channels are rationally arranged, such that the cabinet of the refrigerator is more stable and aesthetic.\nB: A fresh air indoor air conditioner unit (10) comprises a housing (100) and a fresh air device (200). The fresh air device (200) comprises an air inlet module (210) and a fan module (220) communicating with the air inlet module (210). An air inlet cavity is defined in the air inlet module (210), and a pipeline connection portion (212) communicating with the air inlet cavity (211) is provided. The pipeline connection portion (212) is connected to an outdoor fresh air inlet tube (213). The fan module (220) comprises a centrifugal fan (221) and a volute (222) provided outside the centrifugal fan (221). An air inlet of the volute (222) communicates with the air inlet cavity (211), and an air outlet (223) of the volute (222) faces a top portion of the housing (100). An air supply fan (400) is configured to intake, at an air inlet (110) at the top portion of the housing (100), at least some of the air discharged by the centrifugal fan (221), and the air exchanges heat with a heat exchanger (300), and is then discharged via an air supply outlet (120) at a lower portion of the housing (100).\nC: A laundry device, comprising a barrel assembly, a valve assembly (5), and a fan (6), wherein the valve assembly comprises a blocking mechanism and a valve housing (51) which has an air intake cavity (511) and an air outlet cavity (512), the air intake cavity and the air outlet cavity are arranged independent of each other, the air intake cavity communicates with air intake pipelines (7, 8) that connect the outside with the barrel assembly, the air outlet cavity communicates with air outlet pipelines (9, 10) that connect the outside with the barrel assembly, the fan is provided on the air intake pipelines and/or the air outlet pipelines, and the blocking mechanism is arranged to be able to simultaneously block the air intake pipelines and the air outlet pipelines. Further relating to a valve assembly. According to the laundry device and the valve assembly, the air intake pipelines and the air outlet pipelines can be blocked at the same time, so that the dual blocking effects of blocking the entry of external dust and preventing foam overflow can be achieved. The structure is simple, the overall structure arrangement of products is facilitated, and the design complexity is reduced.\nD: A textile air duct capable of increasing air supply efficiency, comprising: an air blower, an air inflation pump, an air duct body and a fixing rod; the air blower is provided with an air outlet pipe, the air duct body is provided with a connecting pipe, the air inflation pump is provided with an air inflation pipe, and the air inflation pipe is fitted with an air nozzle; the lower end of each suspension rod is rotatably provided with a locking hook, the air duct body is provided with support straps, and the air duct body is connected to the locking hooks by means of the support straps; the air duct body comprises a textile fabric layer, a first pressure-resistant layer, an air inflation layer, a second pressure-resistant layer and a thermal insulation layer, and a ventilation cavity is further provided inside the air duct body; the thermal insulation layer is the innermost layer, the second pressure-resistant layer has one side connected to the thermal insulation layer and the other side connected to the air inflation layer, the side of the air inflation layer away from the second pressure-resistant layer is connected to the first pressure-resistant layer, the other side of the first pressure-resistant layer is connected to the textile fabric layer, and the textile fabric layer is the outermost layer. In the present utility model, the textile air duct does not collapse while ensuring the softness of the textile air duct, has a high air supply efficiency and a simple structure, is convenient to assemble, disassemble and clean, and is very convenient to use.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA cooling assembly (100) and a refrigeration device (1000) having same. The cooling assembly (100) comprises: a cooling box (1), a driving member (2), and a receiving member (3). The cooling box (1) comprises a storage chamber (a) for containing a cooling medium; the driving member (2) comprises a driver body (21) and a rotating shaft (22) rotatable with respect to the driver body (21); the driver body (21) can be fixedly connected to the cooling box (1) outside the cooling box (1) or in the cooling box (1); the receiving member (3) is used for fixing an object to be cooled (200); the rotating shaft (22) is connected to the receiving member (3) to drive the receiving member (3) to rotate; and at least a portion of the receiving member (3) protrudes into the storage chamber (a).\nA: Disclosed is an engine cooling fan, the cooling fan comprising: a first blade shaft (100), a plurality of first blades (110) being provided on the first blade shaft (100); a second blade shaft (200), a plurality of second blades (210) being provided on the second blade shaft (200), and the first blade shaft (100) rotatably embedded within the second blade shaft (200); a drive motor, the drive motor being connected to the first blade shaft (100) to drive the first blade shaft (100) to rotate; and a torsion spring (300), with one end of the torsion spring (300) being connected to the first blade shaft (100) and the other end of the torsion spring (300) being connected to the second blade shaft (200). The cooling fan realizes width adjustable fan blades, meets the requirements of air flow for the engine, and generally reduces the overall fuel consumption of the vehicle. Meanwhile, further disclosed are a cooling fan assembly comprising the above-mentioned engine cooling fan and a vehicle having the cooling fan assembly.\nB: A liquid cooling device (100) without using electricity comprises a refrigerating member, a cooling tank (2) for accommodating liquid to be cooled, a thermometer (4) provided on one side of the cooling tank (2) and a water flow switch (5) provided at the bottom of the cooling tank (2). The refrigerating member comprises a sealed casing (101) and refrigerating liquid (102) in the sealed casing (101). The liquid cooling device (100) can cool the liquid without using electricity, and it is simple to operate, cheap to manufacture and easy to use.\nC: A cooling substrate, a cooling component, a display component, a resin pool component, and a 3D printer are provided. The cooling component comprises: a cooling substrate (3), a first high temperature resistant transparent medium (4), and a second high temperature resistant transparent medium (9); wherein the first high temperature resistant transparent medium (4) is disposed on an upper surface (31) of the cooling substrate (3), and the second high temperature resistant transparent medium (9) is disposed on a lower surface (32) of the cooling substrate (3). The cooling substrate (3) has a continuous hollow structure, such that a channel (3a) used for cooling liquid to flow through is formed between the cooling substrate (3) and the first high temperature resistant transparent medium (4) and the second high temperature resistant transparent medium (9). The cooling component has good heat dissipation ability, does not deform easily after being heated, and can ensure normal operations and printing precision of the printer.\nD: Disclosed are a clamping device (10) and a vehicle-mounted support. The clamping device comprises a connecting assembly (20), a rotating member (30), and a clamping assembly (40), wherein the connecting assembly comprises a connecting member (201) and a transmission member (203), the transmission member comprises an accommodating cavity (2031) and an opening (2033) in communication with the accommodating cavity, and the connecting member is connected to a side of the transmission member away from the opening; the clamping assembly comprises a first clamping arm (401) and a second clamping arm (403), the first clamping arm and the second clamping arm are partially accommodated in the accommodating cavity and rotationally connected to the transmission member; and the rotating member is sleeved on the transmission member, the rotating member is in threaded connection with the transmission member, and when the rotating member is rotated, the rotating member moves in an axial direction of the transmission member so as to drive the first clamping arm and the second clamping arm to move relatively, such that ends, located outside the accommodating cavity, of the first clamping arm and the second clamping arm are close to each other or away from each other. The vehicle-mounted support comprises the clamping device and a vehicle-mounted clamp.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA system and method for supplying a backup product in an air separation device, as well as a system and method for supplying a lower-pressure product to a user by means of pressurization of a cryogenic liquid pump (2) during normal operation of an air separation device, i.e., when the cryogenic liquid pump (2) is in the cold standby state. By means of the system and method, a cryogenic liquid product taken from a storage tank (1) is pressurized by the cryogenic liquid pump (2) to produce a lower-pressure product by taking full advantage of the low-speed operation of the cryogenic liquid pump (2) in the cold standby state, and the lower-pressure product is transmitted to product supply lines (7, 8) of a user, to achieve the function of supplying the lower-pressure product to the user. The system and method not only reduce the energy loss of the cryogenic liquid pump (2) in the cold standby state for a long time, but also avoid the bleeding rate of the cryogenic liquid product generated by sending a part of the cryogenic liquid product back to the storage tank (1), so that the advantage of quickly starting the cryogenic liquid pump (2) from the cold standby state is ensured, and the requirements of the user to the higher-pressure product and the lower-pressure product can be satisfied.\nA: Disclosed are a method and a device for filling a dry-type dewar flask. A dry-type dewar flask (1) provided with a porous absorption material (2) capable of absorbing a low-temperature liquid is filled with a low-temperature liquid, such as liquid nitrogen; and the low-temperature liquid enters a supercooled state by means of vacuum-pumping or adding liquid helium, etc. Additionally providing the porous absorption material (2) to absorb the low-temperature liquid can realize quick and efficient filling and obtain a high-quality cold source.\nB: The present invention relates to fully-liquefied gas separation equipment and process. The fully-liquefied gas separation equipment comprises air filtration, compression, precooling, and purification systems, a high-temperature expander, a low-temperature expander, a main heat exchanger, and a rectification system. The air filtration, compression, precooling, and purification systems are connected sequentially to a pressurizing side of the high-temperature expander, a pressurizing side of the low-temperature expander, and the main heat exchanger and then is divided into two branches, respectively connected to an expanding side of the low-temperature expander and the rectification system. The expanding side of the low-temperature expander is connected respectively to the main heat exchanger and the rectification system. The main heat exchanger in turn is connected to the expanding side of the high-temperature expander. The expanding side of the high-temperature expander in turn is connected to the main heat exchanger. The main heat exchanger in turn is connected to the purification system. A low-pressure contaminated nitrogen outlet and a low-pressure nitrogen outlet of the rectification system respectively are connected to the main heat exchanger. The heat exchanger is then connected to the precooling system. The fully-liquefied gas separation process is implemented on the basis of the fully-liquefied gas separation equipment. The present invention has a simple configuration, is easy to implement, provides high gas separation efficiency, and has a low energy consumption.\nC: A waste heat recovery system, comprising N circulation loops in which gas/liquid phase variable media circulate, N being an integer greater than or equal to 1. When N is 1, a first circulation loop comprises a waste heat exchanger, a first stage steam turbine or a first stage expander, a first stage condenser and a first stage liquid pump which are sequentially connected from end to end. When N is an integer greater than or equal to 2, an Nth circulation loop comprises an N-1 stage condenser, an N stage steam turbine or an N stage expander, an N stage condenser and an N stage liquid pump which are sequentially connected from end to end, the N-1 stage condenser being configured to cause an Nth medium flowing through the Nth circulation loop to cool an Nth-1 medium outputted by an N-1 stage steam turbine or an N-1 stage expander, the N stage condenser being configured to cool the Nth-1 medium outputted by the N stage steam turbine or the N stage expander, the N stage condenser being configured to cool the Nth medium outputted by the N stage steam turbine or the N stage expander. A first medium of the first circulation loop is a low temperature liquid medium, and the Nth medium is a low temperature liquid medium having a boiling point of less than 0 degrees Celsius under standard atmospheric pressure. The system effectively utilises waste latent heat energy in the waste heat exchanger, and reduces energy waste. Also provided are a waste heat recovery method suitable for the waste heat recovery system, and a power station.\nD: A liquid treatment device, a heat exchange device (4), a heat exchange box (10), a liquid heating appliance (20), a control method for the liquid heating appliance (20), a control device for the liquid heating appliance (20), and a computer-readable storage medium (90). The liquid treatment device comprises: a liquid inlet channel; a liquid outlet channel (32) and a heat exchange device (4); and a heating assembly. When outputting a liquid such as water having a relatively low temperature, the liquid treatment device can first heat the liquid such as water to a relatively high temperature by means of the heating assembly, so as to realize high-temperature sterilization, and then performs, by means of the heat exchange device (4), heat exchange to cool the liquid such as water which has been heated to a relatively high temperature to a temperature required by a user and then discharge same, so that a liquid such as water having a specified temperature can be outputted; in addition, performing high-temperature sterilization or disinfection on the liquid such as water which has a relatively low temperature before outputting same can remove bacteria and microorganisms in the liquid, thereby ensuring that the output low-temperature liquid is clean and sanitary.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vacuum drying apparatus, comprising a drying tank (11), agitation shafts (12), and an agitation motor (14). Agitation blades (16) are provided on the agitation shafts (12). Both ends of the agitation shafts (12) are separately and fixedly connected to the drying tank (11) by means of bearings and bearing seats, and the agitation shafts (12) are connected to the agitation motor (14). A heating element is provided inside an intermediate layer between an inner layer and an outer layer of the drying tank (11). The drying tank (11) consists of a lower centrally-split tank body and an upper centrally-split tank body, said lower and upper tank bodies being sealed and fixedly connected by means of a sealing ring and fixing bolts. A hollow cavity is provided inside the lower centrally-split tank body, the hollow cavity being provided with an electric heating device and a heat-conducting medium. The electric heating device is controlled by a control system, and the heat-conducting medium is in communication with a vacuum waste heat recovery apparatus. The present vacuum drying apparatus features a novel structure, stable operation, convenient replacement, high working efficiency, and a long service life.\nA: A pre-mixing device for a chemical reactor, comprising a pre-processing tank (6); a stirring assembly (1) is provided at the upper portion of the pre-processing tank (6), a discharging pipe (2) is provided at one side of the lower portion of the pre-processing tank (6), and a supporting frame (3) is provided at the middle portion of the pre-processing tank (6); the stirring assembly (1) comprises a stirring shaft (15), the stirring shaft (15) is rotatably provided at the inner middle portion of the pre-processing tank (6), the upper end of the stirring shaft (15) is connected to a driving shaft of a stirring motor (14) by means of a coupling, the stirring motor (14) is mounted at a top position of the pre-processing tank (6), stirring blades (13) are provided at the upper portion of the stirring shaft (15), connecting rods (157) are provided at the lower portion of the stirring shaft (15), a ball bearing (158) is fixed at one end of each of the connecting rods (157), auxiliary rotating shafts (155) are inserted in the ball bearings (158), gears (156) are fixed on the auxiliary rotating shafts (155), the gears (156) engage with a ring gear (153) by means of the gears (156), the ring gear (153) is fixed on a support (154), the support (154) is fixed at the lower portion of the inner wall of the pre-processing tank (6), and the auxiliary rotating shafts (155) are provided with auxiliary blades (151).\nB: A high-efficiency sludge treatment apparatus, related to the technical field of sludge treatment, comprising a sludge treating housing (1) and a fixed base (11) provided at the underside of the sludge treating housing (1). A stirring electric motor (5) is fixedly mounted on the right side of the sludge treating housing (1). An output end of the stirring electric motor (5) is fixedly connected to a stirring shaft (501). Stirring rods (502) are fixedly provided at an interval on the surface of the stirring shaft (501). A material inlet pipe (4) is fixedly provided at the middle of the upper end of the sludge treating housing (1). A hot air blower (27) is fixedly mounted at the upper end of the sludge treating housing (1) on the side in proximity to the material inlet pipe (4). With sludge undergoing a tiered multilayered filtration treatment via a tier-one filter layer (15) and a tier-two filter layer (16), tiered classification and collection of the sludge are implemented, high-temperature hot air produced by the hot air blower (27) is capable of performing a drying and sterilization treatment with respect to the sludge, the stirring rods (502) and stirring blades (503) are capable of stirring and flipping the sludge in the sludge treating housing (1) so that effects of the drying and sterilization treatment of the sludge are uniform and full, thus increasing the work efficiency of a sludge treatment.\nC: A vacuum drying device and method for a panel substrate after cleaning, the device comprising a pre-dehydration system and a vacuum drying system. A transfer conveying device is arranged between the pre-dehydration system and the vacuum drying system and is used for connecting the pre-dehydration system and the vacuum drying system in series and conveying a product to be dried; the pre-dehydration system comprises a water tank, a circulating pump and a heater, wherein the water tank is connected to the heater, which is arranged externally, by means of the circulating pump and is used for adjusting the temperature of the water in the water tank; and the vacuum drying system comprises a static charge eliminating device, a drying chamber, a nitrogen gas source, a heating cavity, a condenser, a temperature controller, an infrared heater and a vacuum pump, wherein the nitrogen gas source is heated by means of the heating cavity, then is led into the static charge eliminating device and then is sent into an air inlet of the vacuum pump, the infrared heater is arranged in the drying chamber, one end of the condenser is connected to an air outlet of the drying chamber, the other end of the condenser is connected to the vacuum pump, and the infrared heater and the condenser are both connected to the temperature controller to adjust the chamber temperature of the drying chamber.\nD: An efficient crushing feed hopper comprising a feed hopper (1), wherein a cover plate (2) is arranged at an upper end of the feed hopper (1); a longitudinal stirring electric motor (3) is arranged at an upper end of the cover plate (2); a stirring shaft (4) is arranged at a lower end of the longitudinal stirring electric motor (3) and located in the feed hopper (1); an auger delivery piece (5) is mounted on the stirring shaft (4); the feed hopper (1) has an upper portion in the shape of a cylinder and a lower portion in the shape of an inverted cone; a rotating shaft (6) is arranged below the stirring shaft (4) and located in the feed hopper (1); stirring blades (7) are mounted on the rotating shaft (6); the rotating shaft (6) is movably connected to a side wall of the feed hopper (1) via a bearing seat; a transverse stirring electric motor (8) is connected to an outer end of the rotating shaft (6); the transverse stirring electric motor (8) is fixedly mounted on the side wall of the feed hopper (1); a discharge tube (9) is arranged at a lower end of the feed hopper (1); and a feed port (13) is provided on the cover plate (2). By adding a longitudinally arranged stirring shaft and a transversely arranged rotating shaft in a feed hopper, agglomerate materials in the feed hopper can be double stirred, thereby ensuring sufficient crushing of the agglomerate materials, effectively preventing the materials from blocking the feed hopper and lengthening the usage life of the feed hopper.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present utility model is a drying device for cement processing. The drying device comprises a support seat; a drying main body is fixedly mounted on an upper end of the support seat; a crushing motor is fixedly mounted on an upper end of the drying main body; a support leg is fixedly mounted on a lower end of the support base; a gap is fixedly provided at a front end of the support leg; a discharging hopper is fixedly mounted on a lower end of the drying main body; a lower end of the discharging hopper passes through the support seat and extends to the inner side of the support leg; the upper end of the drying main body is located on the right side of the crushing motor and a feeding port is fixedly mounted thereon; a lower end of the feeding port passes through the drying main body and extends to the interior of the drying main body; a feeding hopper is fixedly provided on an upper portion of the interior of the drying main body; and the feeding port fixedly communicates with the feeding hopper. The drying device for cement processing can cool and blow dried materials to prevent the stacking of cement materials with hot and humid air, thereby causing moisture regain.\nA: A quick freezing apparatus for aquatic products, comprising a housing. A material guide hole is formed in the inner wall of the bottom of the housing, a feed hopper is fixedly mounted on one side of the housing, the feed hopper is communicated with the material guide hole, a first rotating rod is rotatably connected to the inner wall of the feed hopper, a spiral blade is fixedly mounted on the first rotating rod, a motor is fixedly mounted on one side of the feed hopper, an output shaft of the motor is fixedly connected to the first rotating rod, a second rotating rod is rotatably connected to the housing, the first rotating rod is in transmission connection with the second rotating rod, four symmetrically arranged support legs are fixedly mounted at the bottom of the housing, a water tank is provided at the bottom of the housing, a water guide pipe is fixedly mounted on the inner wall of the housing, a plurality of adapters are slidably connected to the water guide pipe, a connecting pipe is fixedly mounted at the bottoms of the adapters, a nozzle is fixedly mounted at the bottom end of the connecting pipe, a freezing chamber is fixedly mounted on the inner wall of the top of the housing, air guide pipes are fixedly mounted on the inner walls of both sides of the housing, a connecting pipe is fixedly connected to the air guide pipes, the connecting pipe is connected to the freezing chamber, hoses are fixedly mounted on the inner walls of both sides of the water tank, and one ends of the hoses are fixedly connected to the water guide pipe. Also disclosed is a method for freezing the aquatic products by using the apparatus.\nB: Disclosed in the present utility model is a water surface rubbish cleaning machine, comprising a support frame, a mounting plate being fixedly arranged at the upper end of the support frame, a floating airbag being arranged at one end of the mounting plate, two support crossbars being arranged on the inner side of the support frame, a support framework being arranged on the upper end of the support crossbars, a fishing net being arranged on the inner side of the support framework, a drive motor being fixedly mounted on both sides of one end of the inner side wall of the support frame, a rotating shaft being fixedly connected to an output shaft of the drive motors, a gear being fixedly arranged on the rotating shaft, a rack being fixedly arranged on the sides of the support crossbars furthest from one another, a collecting tank being fixedly arranged on the left and right sides of the upper end of the support frame, a feed inlet being arranged on the upper end of the sides of the two collecting tanks closest to one another, and a filter mesh being arranged inside the collecting tanks. The present utility model facilitates cleaning and collection of water surface rubbish, and can increase water surface rubbish cleaning efficiency and save labour.\nC: An auto-adding dye mechanism for intelligent manufacturing production and dyeing of a garment fabric, comprising a main body. Supporting springs are arranged at the bottom of an inner wall of the main body, supporting rods are fixedly mounted at the upper ends of the supporting springs, and dye boxes are fixedly mounted on the upper ends of the supporting rods, first gear racks being arranged on the sides of the supporting rods facing away from each other, movable gears are connected to the outer sides of the first gear racks by means of meshing, second gear racks are connected to the sides of the gears away from the first gear strips by means of meshing, and movable blocks are fixedly installed on the sides of the second gear racks away from the movable gears. In the present auto-adding dye mechanism for intelligent manufacturing production and dyeing of garment fabric, after dyeing is finished, a garment fabric above a screen is driven to move upwards by means of driving the sliding blocks, and then kinetic energy is generated by means of a drying mechanism to perform drying processing on the dyed garment fabric, thus allowing for rapid drying, convenient use, and a high working efficiency, and having value for broad use.\nD: An efficient drying device for a panel, comprising a drying device body (1). Feed inlets (3) are fixedly connected to the front of the drying device body (1). Block panels (5) are fixedly connected to both left and right sides of the feed inlets (3). Nuts (4) are fixedly connected to left and right sides on the front of the block panels (5). A controller (2) is fixedly connected to the upper left side on the front of the drying device body (1). A base (6) is fixedly connected to the bottom of the drying device body (1). Support rods (11) are fixedly connected to the bottom on the left side of the drying device body (1). Fixing blocks (8) are fixedly connected to the front of the support rods (11). The drying device body (1), the block panels (5), the feed inlets (3), and the nuts (4) work in conjunction to dry panels while keeping the drying positions uniform.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA microwave heating and drying device and a microwave heating and drying method. The device comprises a lifting mechanism (3), a microwave drying mechanism, a working compartment (7) for accommodating a material and having an opening at the top, and a conveying roller (5) for conveying the working compartment (7) to the lifting mechanism (3). The microwave drying mechanism has a microwave generator (12), a microwave cover (8), and a microwave guide tube (11) connected to the microwave generator (12) and the microwave cover (8). A microwave outlet is provided on a lower portion of the microwave cover (8). The conveying roller (5) is provided on the lifting mechanism (3), and is capable of performing vertical movement together with the lifting mechanism (3). The lifting mechanism (3) is provided below the microwave cover (8). The lifting mechanism (3) is for lifting the working compartment (7) containing a material, such that the opening at the top of the working container (7) contacts the microwave outlet. A first sealing structure for preventing microwave leakage is disposed between the opening at the top of the working compartment (7) and the microwave outlet. The microwave heating and drying device resolves the issue of microwave leakage during a microwave curing process, and improves the utilization rate, as well as the heating and drying efficiency, of the device.\nA: Disclosed is a microwave vacuum hot-air drying all-in-one machine, comprising a cabinet (1), a rotary drying frame (2), drying trays (3), a rotating electric motor (4), and magnetrons (5), wherein the rotary drying frame (2) is a layer structure and is arranged in the cabinet (1); the bottom of the rotary drying frame (2) is provided with rotating rollers (6), and the multiple drying trays (3) are evenly distributed on the rotary drying frame (2); the rotating electric motor (4) is arranged at the bottom of the cabinet (1) and is located directly below the rotary drying frame (2); a transmission shaft of the rotating electric motor (4) is connected to a transmission member (7), and the transmission member (7) is connected to the bottom of the rotary drying frame (2); the magnetrons (5) are arranged on an inner side wall of the cabinet (1) and are used to perform microwave drying for materials on the drying trays (3); a side wall of the cabinet (1) is provided with an air inlet (8), and the top thereof is provided with an air outlet (9); and the air inlet (8) is connected to a distributor (10) located in the cabinet (1), and the distributor (10) is arranged facing the rotary drying frame (2). The microwave vacuum hot-air drying all-in-one machine shortens the time for microwave sterilization, and is high speed, saves on energy, and has less additional heat energy loss.\nB: A microwave heating device and control method therefor, the microwave heating device comprising: a heating chamber (1), a microwave source (2) used to generate microwaves, a controller (6), a plurality of waveguide ports (3) located on the heating chamber (1), a plurality of radio frequency switches (4) and a plurality of radio frequency output ports (5) corresponding to the plurality of radio frequency switches (4). The plurality of radio frequency output ports (5) are respectively and correspondingly connected to the plurality of waveguide ports (3), and the plurality of radio frequency switches (4) are connected to the microwave source (2). The controller (6) controls the plurality of radio frequency switches (4) so that in each time period at least one of the radio frequency output ports (5) within the plurality of radio frequency output ports (5) outputs microwaves. The plurality of waveguide ports (3) in the present microwave heating device share a microwave source (2), and controlling is performed by the plurality of radio frequency switches (4). The present device has a simple structure, and outputting microwaves by switching different radio frequency output ports (5) increases the heating uniformity of the microwave heating device.\nC: Provided are a microwave heating-based thermochemical hydrogen production system, a hydrogen production method therefor and use thereof. The hydrogen production system is as follows: the inlet of a preheater (3) is in communication with a carrier gas storage device (1), and a flow controller (2) is provided therebetween; the outlet of the preheater (3) is respectively in communication with the inlet of a steam generator (13) and one end of the second-three-way valve (5) via the first-three-way valve (4); the other two ends of the second-three-way valve (5) are respectively in communication with the outlet of the superheater (14) and the inlet of a reactor (7); the reactor (7) is provided in a microwave generation device (6); the outlet of the steam generator (13) is in communication with the inlet of the superheater (14) via a pipeline; the outlet of the reactor (7), a condenser (9), a drying device (10) and a collection device (12) are successively communicated; and a chromatograph (11) is provided on a communication pipeline between the drying device (10) and the collection device (12). Microwave pyrolysis of metal oxides has the characteristics of low energy consumption and fast temperature rise, so that the cost of experiments can be reduced, the cycle of repeated experiments is reduced, and the effective energy utilization rate is greatly improved.\nD: A three-dimensional printing method for food using microwaves and a printer, which relate to the technical field of foodstuffs. Microwaves are released at the front end by means of a microwave heating probe (9) embedded in the inner wall of a feeding barrel (5), and the effect of instant curing of an extruded material is achieved by combining the size settings of a non-wave absorbing material (27); by means of the design of a horn mouth (21) and a choke groove (23) of an anti-leakage unit and the design of a wave absorbing material of a printing platform (4), the heating efficiency of a product is effectively improved, and microwave leakage and diffusion are prevented. A cooling device is provided so as to ensure that a material to be printed contained in the charging barrel (5) is not cooked by microwave heating before entering the an extrusion nozzle (26). Microwaves are generated by a microwave solid-state source (8) and are conducted by a transmission line, so that microwave output is stable. In addition, power and frequency may be adjusted according to printing requirements, and the microwave solid-state source (8) is small in size and convenient to integrate. The printed product structure is high in mechanical strength by means of printing and heating curing, a hollow unsupported three-dimensional structure may be manufactured, and a product model does not easily collapse.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a furnace door sealing apparatus for a low-pressure diffusion furnace, the apparatus comprising: a furnace door (1), a fixing shaft (2) and a fixing seat (3) successively arranged from front to back and arranged coaxially. The middle of a rear end face of the furnace door (1) is fixed with a bearing seat (6); a centripetal joint bearing (4) is provided within the bearing seat (6); an outer ring of the centripetal joint bearing (4) is fixed within the bearing seat (6); the inner ring of the centripetal joint bearing (4) is fixedly sheathed on a front end of the fixing shaft (2); a rear end of the fixing shaft (2) is fixed within the fixing seat (3); a front end face of the fixing seat (3) is also fixed with a supporting plate (8); and a plurality of spring adjusting components are provided at intervals on the supporting plate (8).\nA: Disclosed is a ball bearing high-speed electric main shaft for milling, comprising an upper bearing seat assembly (5), an upper bearing assembly (6) being fixed via an upper bearing lock nut (17) in a through-hole within the upper bearing seat assembly (5), wherein the front end of a step of the upper bearing seat assembly (5) is fixed to the rear end of a machine body assembly (9), and the front end of a lower bearing assembly (10) is fixed to a lower bearing pressure ring (16) by a lower bearing lock nut (15), and the rear end of a spindle main body of a spindle assembly (7) is fixed to an encoder (18) detecting the rotational speed. The rotational speed of the electric main shaft is adjustable and when operating at a high rotational speed, the main shaft has high accuracy, adequate axial and radial rigidity, and a long service life.\nB: Disclosed is a universal pressing roller for a carton sealing machine, falling within the technical field of packaging machinery equipment. The universal pressing roller comprises a shaft fixing frame (1), a shaft (2), a bearing ball (3) and a collar (4), with one end of the shaft (2) being fixed to the shaft fixing frame (1), two sides of the bearing ball (3) being respectively fixed to the middle part of the shaft (2) via the collar (4), a bearing ball outer sleeve (5) being sleeved on the bearing ball (3), the bearing ball (3) and the bearing ball outer sleeve (5) being slidable relative to each other, a bearing seat (6) being fixed to the bearing ball outer sleeve (5), and a rubber wheel (7) being provided on the outer side of the bearing seat (6). Since the middle part of the shaft of the universal pressing roller is provided with the bearing ball, the rubber wheel on the shaft can self-adjust an angle according to the angle of a contact surface of a to-be-sealed carton in contact with the rubber wheel, so that the sticking of same with tape is smooth and nice-looking, without changing the original shape of the carton. Furthermore, the universal pressing roller is simple in structure, and is safe, stable, convenient and reliable during use. With the universal pressing roller, the cartons have a consistent and nice look after being sealed. The universal pressing roller is suitable for assembly line work, and can be used to make improvements on almost all the existing carton sealing machines to solve the general problem of the carton surface not being parallel to the roller, and is suitable for being popularized.\nC: An electromagnetic dog clutch, which is used for solving the technical problem that friction easily occurs between a bearing seat and an end cover of a movable gear sleeve in an existing electromagnetic dog clutch. The electromagnetic dog clutch comprises a movable gear sleeve (5) and a fixed gear sleeve (12) which are in meshing transmission with each other, a first end cover (6) is provided at an outer side of the movable gear sleeve (5), a bearing (1) is provided on the outer circumference of the movable gear sleeve (5), the bearing (1) is embedded within a bearing seat (7), a positioning surface is provided at a rear end of the bearing seat (7), a front end of the first end cover (6) is a vertical flat surface fitted with the positioning surface of the bearing seat (7), a positioning pin (15) is provided at the front end of the first end cover (6), a positioning hole is provided at the rear end of the bearing seat (7) in cooperation, and the positioning pin (15) is inserted into the positioning hole to allow the relative axial movement and limit the relative rotational movement between the bearing seat (7) and the first end cover (6), avoiding friction between the two.\nD: Disclosed is an environment-friendly thermal treatment furnace, comprising a furnace body (1) and a furnace door (2), wherein a furnace opening (1-1) is provided on a side surface of the furnace body (1) and the furnace door (2) is provided on the furnace opening (1-1), which is characterized in that: a connection rod (3) is arranged on the side surface of the furnace body (1) which is provided with the furnace opening (1-1), two cross bars (4) are fixed to the connection rod (3), and two ends of the connection rod (3) are hinged with the furnace body (1); upper and lower sides of the furnace door (2) are respectively connected to the two cross bars (4) via a strut (5), a waist-shaped hole (6) is provided on each of the upper and lower sides of the furnace door (2) respectively, and the length of the waist-shaped hole (6) extends from the point close to the furnace body (1) to the direction away from the furnace body (1), and one end of the strut (5) is fixed with the cross bar (4), and the other end of the strut (5) extends into the waist-shaped hole (6) to be hinged with the furnace door (2); A retaining ring (7) and a sealing ring (8) are provided on an inner side of the furnace door (2), and the sealing ring (8) is fitted inside the retaining ring (7), a groove (9) matched with the retaining ring (7) and the sealing ring (8) is provided on the outer periphery of the furnace opening (1-1) of the furnace body (1), the sealing ring (8) and the retaining ring (7) are provided with through-holes (10) on side surfaces, and filter screens (11) are provided on the through-holes (10) of the retaining ring (7).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention provides a plate heat exchanger having a flow-dividing plate path. The heat exchanger comprises a housing and two or more heat exchange modules vertically disposed in the housing. The number of auxiliary heat exchange plates in the uppermost heat exchange module is n1, the number of auxiliary heat exchange plates in the next heat exchange module is n2, and the number of auxiliary heat exchange plates in the next heat exchange module is n3, and so on, where n1, n2, and n3 are natural numbers, and at least one heat exchange module has a non-zero number of auxiliary heat exchange plates therein. In each heat exchange module provided with an auxiliary heat exchange plate, the connection point between a main plate inlet pipe and an inlet-end collection pipe is higher than the connection point between an auxiliary plate inlet pipe and the inlet-end collection pipe. Part of liquid phase substances, including oil, in plate-path fluids are concentrated and converged by means of the inlet-end collection pipe, and are then introduced into a separate auxiliary plate to accelerate discharge of the liquid phase substances, thereby greatly reducing the amount of liquid phase substances and oil passing through heat exchange fins of the main unit, and improving the overall heat exchange efficiency of the device.\nA: A closed cooling tower having a tubesheet combined heat exchange piece, comprising a tubesheet combined heat exchanger (8), a blower(4), a solution pump (5), a spray shower (6), a solution reservoir (7) and a frame (9); the combined heat exchanger of tube sheet (8) is formed by connecting a plurality of tubesheet combined heat exchange pieces with an inlet header and an outlet header; the tubesheet combined heat exchange piece comprises a heat transfer plate (2) and a coil pipe (1) formed by processing a heat exchange pipe; the heat transfer plate (2) is provided with a mounting groove (21), and the shape of the mounting groove (21) matches the shape of the coil pipe (1); the coil pipe (1) is mounted inside the mounting groove (21), and the gap between the coil pipe (1) and the mounting groove (21) is filled with a heat conductive bonding layer (3), the heat conductive bonding layer (3) enabling full contact between the heat transfer plate (2) and the coil pipe (1), so as to increase an effective heat exchange area of the coil pipe (1); the heat transfer plate (2) can guide a solution to form a continuous flow surface face and increase a solution heat exchange surface area, improving the heat exchange efficiency as well as reducing the cooling tower volume.\nB: Disclosed is a heat exchange plate of a plate-type condenser. The heat exchange plate is formed by welding edges of two plate bodies, an inlet and an outlet which are connected to an inner cavity of the heat exchange plate are welded to the edges of the plate bodies, and a plurality of baffle lines are arranged on the plate bodies to form a circulating baffle flow channel. Round and oval salient points are arranged in a flow channel area to disturb a flow and enhance heat exchange. The round salient points not only enhance the pressure resistance of the flow channel, but also play a role in disturbing a flow, and the oval salient points improve the dynamic performance of a medium flow channel. The heat exchange plate is manufactured by using two methods, one of which involves firstly carrying out rolling forming and then carrying out resistance welding at the salient points of the plate bodies, and the other of which involves firstly carrying out fixed-point welding on two stacked plate bodies and then carrying out forming by means of blowing. The round and oval salient points of the present invention not only enhance heat exchange, but also increase the mechanical strength of the plate bodies; and the heat exchange plate of the plate-type condenser has a compact structure, is easy to assemble, is resistant to high temperatures and high pressure, has a high heat exchange efficiency, and has a long service life.\nC: A heat exchanging plate applicable in a plate and shell-type heat exchanger and the plate and shell-type heat exchanger using the heat exchanging plate. The heat exchanging plate is provided with two transverse partitions and, by means of a plate-side flow channel of a plate-side deflector strip (22) on the heat exchanging plate, forms two linked transverse flows or flow areas separated from each other. This heat exchanging plate can be used to construct a single-flow heat exchanger of increased efficiency and a multi-flow plate and shell-type heat exchanger having plate-side connecting pipes arranged on a front-extremity flange cover and a detachable heat-exchanging core. This multi-flow plate and shell-type heat exchanger is convenient to be opened for servicing and mechanical cleaning.\nD: An air conditioning unit having a tubesheet combined heat-exchanging evaporative condenser (2), comprising a compressor (1), an evaporative condenser (2), a throttling device (3), an evaporator (4) and a fan (5); the evaporative condenser (2) comprises a cooling fan (21), a water distributor (23), a water-collecting reservoir (24) and a tubesheet combined heat exchanger (25); the tubesheet combined heat exchanger (25) is formed by connecting a plurality of tubesheet combined heat-exchanging members via an inlet header and an outlet header; the tubesheet combined heat-exchanging members comprise a heat-transferring plate (27), and a coil pipe (26) formed by machining a heat-exchanging pipe; the heat-transferring plate (27) is provided with a receiving groove (28), and a shape of the receiving groove (28) matches a shape of the coil pipe (26); the coil pipe (26) is placed in the receiving groove (28), and a heat-conducting bonding layer (29) is filled in a gap between the coil pipe (26) and the receiving groove (28); the heat-conducting bonding layer (29) enables a full contact between the heat-transferring plate (27) and the coil pipe (26), thus increasing a heat-exchange area; and the heat-transferring plate (27) can guide cooling water to form a continuous flow surface, thus increasing an evaporation area of the cooling water, improving a heat-exchange efficiency and reducing a volume of the condenser.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn information storage apparatus for a laser gun battle system, comprising a housing (2), an information storage module (5) for storing coded data, a power supply module (6), a control module (3), a capacity display module (4) for displaying remaining coded data value in proportion, and a touch button (1) for controlling the on-off operation of the capacity display module (4). The capacity display module (4) and the touch button (1) are connected to the control module (3), and the capacity display module (4) is set on the outer surface of the housing (2). The surface of the housing (2) is provided with the capacity display module (4), which can display coded data in the storage apparatus in proportion; with the arrangement of the touch button (1), the on-off operation of the capacity display module (4) can be controlled, and a player can control the checking of the remaining capacity. Using the information storage apparatus, a player of the simulated field operation shooting and confronting system can visually and directly see the remaining coded data value of the apparatus, and thereby reference to use the information storage apparatus in a reasonable and convenient manner can be provided.\nA: A portable impedance bio-sensing detector comprises a control module (1), an IO expansion module (2), a display module (3), an impedance measuring module (4), a power supply module (5), a communication module (6), a voltage sampling module (7), a data storage module (8), a clock module (9), a sound module (10) and a system state indicating module (11). The control module (1) is connected to the IO expansion module (2), the display module (3), the impedance measuring module (4), the communication module (6), the voltage sampling module (7), the data storage module (8) and the clock module (9). The IO expansion module (2) is connected to the display module (3), the impedance measuring module (4), the communication module (6), the sound module (10) and the system state indicating module (11). The present invention is convenient to carry and capable of being extensively applied in various biological impedance analysis occasions.\nB: A vest for shooting games comprises a vest body, a main control unit (1) disposed on the vest body, and a laser sensing unit (2) for receiving a laser signal from a laser transmission gun, a vibration sensor (3) for acquiring a vibration frequency of the vest body, micro vibrating motors (4) for driving the vest body to vibrate, a storage unit (8) at least storing a simulated life value of the vest, and touch buttons (71, 72, 73) disposed at the left side, right side and rear side of the vest respectively, which are connected to the main control unit (1). The number of the micro vibrating motors (4) is two, which are disposed around the touch buttons (71, 72) at the left side and right side of the vest in a one-to-one corresponding manner respectively.\nC: A portable record reminding apparatus and a processing method for voice input and recognition thereof, wherein the device comprises a housing, a rechargeable battery, a main control MCU, an input device, a display screen, an information storage device, a charging and discharging circuit, a voice processing device and an electromagnetic vibration module which are installed in the housing. The main control MCU is connected to the input device, the display screen, the information storage device, the charging and discharging circuit, the voice processing device and the electromagnetic vibration module respectively, thereby achieving a collection of multiple functions. A user can add and modify alarm clock settings by means of voice. Schedule management can be set by means of voice. Reminding can be performed by means of vibration and the like according to a set alarm clock time. Voice can be recorded to be stored in an information storage device. And voice recognition of a dialect language can further be supported via the main control MCU. The whole device has a small volume, a high integration level and a comprehensive function, and is suitable for large-scale promotion.\nD: A station guiding system based on optical transmission communication, comprising: a display subsystem for displaying information; a storage module for storing data; a scanning interface module for abutting the display subsystem against the storage module, and a control module for controlling the working mode of the display subsystem by means of optical transmission communication. The display subsystem comprises a plurality of display screens which are successively arranged along floors of a railway station; each display screen corresponds to one floor and is provided at an entrance of a main channel of the corresponding floor; the display screen is provided with a floor number display module for displaying the number of the current floor; a waiting information display module for displaying the waiting information of the current floor; a delayed train information display module for displaying information of delayed trains; a clock display module for displaying the current time; and a prompt information display module for displaying prompt information. The station guiding system can conveniently guide passengers to rapidly find out corresponding train numbers and boarding points in the railway station.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA power source unit body for catapulting. The power source unit body for catapulting (77) comprises a high-pressure chamber (7), a flow splitting chamber (8) and a cooling water chamber (9). High-temperature high-pressure fuel gas generated through burning of gunpowder (36) enters the flow splitting chamber, a part of the fuel gas enters a vertical pipe (29) from a fuel gas inlet, and another part of the fuel gas squeezes a water bag (19) in the cooling water chamber, so that cooling water in the water bag is sprayed into the vertical pipe from a cooling water nozzle, and is mixed with high-temperature high-pressure fuel gas to generate steam, and the steam and the gunpowder fuel gas are formed into mixed gas. In the power unit body for catapulting, gunpowder is placed in a cartridge case (6), and when it is required to release energy, high-pressure gas may be released through percussion of the power unit body, thereby implementing catapulting of a shipboard aircraft. Also, an aircraft carrier gas-steam catapult and a catapulting method for implementing catapulting of a shipboard aircraft by use of the power unit body.\nA: A gas turbine intake air cooling device using waste heat as driving force, the intake air cooling device comprising an air cooler or a cooling tower (6), a surface cooler (1), a cold water tank (7), and at least one waste heat chiller (4); the two low-temperature water ends (D, C) of the waste heat chiller (4) are connected to the surface cooler (1) via valves (I, II) and/or valves (IV, V, VI) and the cold water tank (7); the two cooling water ends (A, B) of the waste heat chiller (4) are connected to the two cooling water ends of the cooling tower (6); the high-temperature flue gas input end of the waste heat chiller (4) is connected to a waste heat fuel gas pipe (3) of a gas turbine; and the cooling air outlet of the surface cooler (1) is connected to the air intake of a gas turbine (2). The gas turbine intake air cooling device using waste heat as driving force has less energy consumption, low operating costs and controllable intake air humidity.\nB: Aircraft carrier aircraft takeoff catapult equipment, comprising a flight deck (18) having a gap (19), front and rear pulleys (20 and 23), and steel cables (36) wrapped around the pulleys. A connector block (45) connects both ends of the steel cables together. A block base (47) is provided on the connector block. A takeoff driving motor (25) can directly drive a pullable swinging arm (7) on the nose gear of an aircraft via the rear pully, the steel cables, and the block base (47) on the connector block or drive an aircraft to run and take off via a reciprocating shuttle. Because the friction between the pulleys and the steel cables can be increased by providing multiple steel cables and increasing the force of a tightening mechanism, this aircraft catapult equipment can easily achieve the driving force required by the aircraft to take off; moreover, the overall structure of the equipment is simplified, is also easy to process and manufacture, and is very suitable for use in catapulting a heavy aircraft taking off from an aircraft carrier. The equipment also is suitable for being miniaturized for installation on a ship or vehicle, specialized in catapulting the takeoff of a small-sized unmanned aerial vehicle.\nC: The invention relates to a high-pressure reheating gas-steam combined cycle power generation system and a power generation method. The system consists of a gas turbine sub-system and a steam turbine sub-system. The gas turbine sub-system comprises a device used for two-stage air compression, twice combustion as well as high-pressure and medium-pressure twice turbine working; after initial working of high-temperature gas, the high-temperature gas enters a medium-pressure combustion chamber and is reheated for secondary working, improving the average heat absorption temperature of the whole cycle; and at least a one-stage intercooler is arranged between two-stage compressors, and the heat flow of the intercooler is connected with the two-stage compressors. The steam turbine sub-system adopts a three-pressure reheating type boiler and a steam turbine, the cooling water of the intercooler is connected with high-pressure water, and high-pressure, medium-pressure and low-pressure water as well as the cooling water of the intercooler absorbs heat at different stages for multiple times, thus utilizing the heat energy efficiently. When the high-pressure reheating gas-steam combined cycle power generation system by the present invention is operated with the optimum parameters, the combined cycle efficiency is increased by 3-5 percentage points compared with a combined cycle system mainly adopting a gas turbine class F, and the single-machine output power is increased by more than 70%, reaching level 800MW.\nD: Disclosed is a steam ejection type organic garbage disposer with a screwing function of a feed screw cap, which comprises a steam pressure maintaining steel cylinder (19), an ejection steel cage, a feed screw cap (6), a screw cap control device and an ejection initiating cylinder (24), wherein the ejection steel cage is slidingly installed in the steam pressure maintaining steel cylinder (19); a steam inlet (17) is provided on the steam pressure maintaining steel cylinder (19); a feed inlet (27) is provided at the upper end of the ejection steel cage; the lower end of the ejection steel cage is fixedly installed with a piston rod of the ejection initiating cylinder (24); the feed screw cap (6) is installed on the feed port (27) of the ejection steel cage; and the screw cap control device is installed on the steam pressure maintaining steel cylinder (19) above the feed screw cap (6). The garbage disposer has a simple structure, convenient loading and high-pressure resistance, is suitable for instantaneous ejection, and has uniform and ordered discharge and a more stable ejection slide during steam ejection.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA tunnel smooth blasting uncoupled shaped charge device and a charge method. Said device comprises a C-type shaped pipe, shaped hollow columns are symmetrically provided within the C-type shaped pipe, the cross section of each shaped hollow column is a conical structure, a top end of the shaped hollow column is a shaped embedded end, and the shaped included angle of the shaped embedded end is 30-70 degrees. Compared with the prior art, the tunnel smooth blasting uncoupled shaped charge device and the charge method have a novel structure, strong practicability and a strong combination type, and can select an uncoupled strip with an appropriate length according to the depth of a blast hole, having high adaptability. Before construction, the required charge column, C-type shaped pipe and uncoupled strip are respectively transported to a tunnel face for on-site assembly, the assembly method is simple and time and labor saving, facilitating the management of explosives.\nA: The present invention relates to a solar energy gathering device and a method for determining an inclination angle of a mounting slope of a mounting base assembly of the solar energy gathering device. The solar energy gathering device comprises a mounting support, an energy gathering structure, an east-west angle rotating structure, a pitch angle rotating structure, a mounting base assembly, and a reflector. The energy gathering structure is mounted on the mounting support; the mounting support is respectively connected to the east-west angle rotating structure and the pitch angle rotating structure; the mounting base assembly is mounted on the mounting support, an end portion of each mounting base assembly is provided with a mounting slope, and the mounting slope is perpendicular to a normal between direct light of the sun and reflected light of the energy gathering structure; the reflector is mounted on the mounting slope, and angles of a reflective surface of the reflector and the mounting slope are the same so that the reflector can reflect sunlight to the energy gathering device. The solar energy gathering device has the advantages that an energy gathering effect is good, a reflection angle of the reflector can be adjusted and controlled according to different irradiation angles of the sun, the process is simple, and batch manufacturing can be achieved, etc..\nB: A solar energy distillation apparatus, comprising vaporization energy collecting shades (1), steam guide pipes (2) and a distillate receiving container (3); the vaporization energy collecting shades (1) comprise a curved light reflecting cup (4) and a vaporization pipe column (5), a lower end of the vaporization pipe column (5) communicating with a through hole (9) at a bottom portion of the curved light reflecting cup (4), while an upper end of the vaporization pipe column (5) communicates with the distillate receiving container (3) by means of the steam guide pipe (2); an inner surface of the curved light reflecting cup (4) is a solar light reflecting surface, the solar light reflecting surface focusing solar light onto the vaporization pipe column (5), and the vaporization pipe column (5) being communicatively provided thereon with a vaporization ball (6); the bottom portion of the curved light reflecting cup (4) is provided with a water discharge hole (12), the water discharge hole (12) being connected to a water discharge pipe (13); a floating body (7) is provided on the edge of the curved light reflecting cup (4), and the bottom portion of the curved light reflecting cup (4) is connectedly provided with a counterweight (8). The apparatus may obtain drinkable desalted water by using solar energy to evaporate seawater; the apparatus has a simple structure, is low-cost, saves energy, is environmentally friendly and is convenient to use.\nC: Disclosed is a longwall working face, non-pillared mining method, comprising the following steps: 1. Excavating a headentry (2) and a tailentry (3); 2. Reinforcing a top panel (5) of the headentry (3) and drilling on the top panel an energy collecting hole (7) for pre-splitting blasting; 3. Extracting until a goaf is formed; 4. Blasting at a position corresponding to the energy collecting hole and forming a kerf on the top panel; 5. The mining face collapsing to become a new tunnel; 6. Taking the original tailentry as the headentry of the next mining face, and excavating a tailentry relative to the headentry, to form a new mining face; and 7. Repeating steps 2-6, and continuing to mine coal until the coal seam mining is completed. The present method involves continuity between every two mining faces, non-pillared support, a short process for forming roadways, and high efficiency of mining and forming roadways.\nD: A medium-length hole large cross-section composite cut blasting structure and method. A large-diameter hole (1) perpendicular to a working face is disposed at a position near but lower than a center of a tunneling working face. Several cut holes (2) are disposed around the large-diameter hole (1). The cut holes (2) are distributed in a spiral pattern with a central axis of the large-diameter hole (1) as a center. The lengths of the cut holes (2) increase gradually from the center of the spiral pattern to outside. The cut holes (2) are inclined holes with the inner end inclined toward the central axis of the large-diameter hole (1). Several peripheral holes (4) and several floor holes (5) are disposed along an outer contour of the working face on the tunneling working face for controlling the contour of the working face after the blasting. Two rows of auxiliary holes (3) are disposed between the peripheral holes (4) and the cut holes (2), and one row of auxiliary holes (3) is disposed between the cut holes (2) and the floor holes (5). The cut holes (2), the auxiliary holes (3), the peripheral holes (4) and the floor holes (5) are all provided with water bags, explosives and detonators therein. The configuration of the present invention reduces the vibration velocity of blasting, the charge volume for blasting and the amount of labor, and also causes less damage to surrounding rocks.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn energy-concentrating and nest-shaped structure-forming bundle device for preventing lost circulation and reinforcing a bore wall, and application thereof in prevention of lost circulation in a karst cavity. The device comprises an outer slotted metal pipe (1) and an inner nest-shaped structure-forming explosion component. The slotted metal pipe (1) has helical slots (2) or linear slots (3) on a pipe wall thereof. The nest-shaped structure-forming explosive component is a core shaft (5) having several explosion recesses (4). Explosives are placed in the recesses (4). The slotted metal pipe (1) is sleeved and fixed on the core shaft (5). The core shaft (5) is in a loose fit with the slotted metal pipe (1). The present invention can solve the problem in which lost circulation material does not readily remain to form a support, and can improve the success rate of preventing lost circulation.\nA: Provided is an esophageal stent weaving tooling and the application method thereof, wherein the tooling comprises a hollow metal tube (1) and a screw rod (201) which is sequentially sleeved with a short joint (203), a square tube (204) and a spring (205) from top to bottom in a penetrating manner, wherein the screw rod (21) penetrates through the hollow metal tube (1), one end of the spring (205) is limited by a limiting structure in the hollow metal tube (1), and the other end of the spring (205) is abutted against the end face of the square tube (204), the square tube (204) is inserted into the hollow metal tube (1), the short joint (203) and the square tube (204) are integrally formed and can slide along the screw rod (201). A distance of 2-5 mm is reserved between the short joint (203) and the hollow metal tube (1), the short joint (203) can be pressed according to weaving requirements to adjust the distance between the short joint (203) and the hollow metal tube (1), and after weaving is completed, the short joint (203) may be pressed down until the short joint (203) is tightly attached to the hollow metal tube (1) so as to conveniently take out the esophageal stent. Therefore, the supporting force of the esophageal stent may be improved, and the occurrence of breakage or filament breakage is avoided. The tooling is particularly suitable for degradable esophageal stents, ensuring the quality and efficiency for weaving the esophageal stents.\nB: A plugging method, applied to a mid-deep strata geothermal well (6), and comprising: removing soil of a leakage area, and adding backfill soil and compacting same to form a backfill soil layer (4); drilling at leakage points of the leakage area to form at least one grouting hole (9) and at least one exhaust hole (5); inserting a grouting pipe (10) into the grouting hole, and injecting a plugging material to a position below the backfill soil layer by means of the grouting pipe; plugging the exhaust hole, and injecting a plugging material to be the position below the backfill soil layer again; and standing for a preset time to complete the plugging. The plugging material is injected by adopting a low-pressure method, the operation is simple, and the leakage points are plugged more effectively by injecting the plugging material twice.\nC: A hoop stake for gardening, comprising: a metal tube (1); and a plastic layer (2) coated on an outer wall of the metal tube (1). The metal tube (1) is a U-shaped tube. A first end portion and a second end portion of the metal tube (1) are respectively provided with a male connector (3) and a female connector (4), or are each provided with a male connector (3), or are each provided with a female connector (4). The female connector (4) comprises a first connection portion (41) in a hollow cylindrical shape and an engagement sleeve (42), wherein the first connection portion (41) is coaxial with the metal tube (1) and has an internal thread provided on an inner wall thereof, and the engagement sleeve (42) is fixedly connected to the first connection portion (41). The male connector (3) comprises a second connection portion in a cylindrical shape and an engagement connector (31), wherein the second connection portion is coaxial with the metal tube (1) and has an external thread (32) provided on an outer wall thereof and matching the internal thread, and the engagement connector (31) is located at a tail end of the external thread (32) and fixedly connected to the second connection portion. It is possible to connect two separate hoop stakes and boost connection strength therebetween.\nD: Disclosed is a metal inner cavity magnetic abrasive finishing device, comprising an outer frame (1), wherein an electric motor (2) is fixedly connected to the bottom of an inner cavity of the outer frame (1); a rotary disk (3) is fixedly connected to an output shaft of the electric motor (2); a magnetic disk (4) is fixedly connected to either side of the surface of the rotary disk (3); a sleeve (5) is fixedly connected to either side of the inner cavity of the outer frame (1); an inner cavity of the sleeve (5) is fixedly connected to a first reset spring (6); the side of the first reset spring (6) away from the inner cavity of the sleeve (5) is fixedly connected to a movable rod (7); the side of the movable rod (7) away from the first reset spring (6) is fixedly connected to a sleeving pipe (8); an inner cavity of the sleeving pipe (8) is clamped with a metal pipe body (9); and a magnetic abrasive body (10) is arranged in an inner cavity of the metal pipe body (9). According to the finishing device, the metal pipe body is clamped, fixed and polished, and the finishing efficiency thereof is thus improved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present application relates to the technical field of data collection, and provides a method, apparatus and device for centralized collection of configuration data. The method comprises: obtaining identification information sent by a sensor to determine a communication type of the sensor; pushing the communication type to a user, so that the user connects the sensor to a corresponding interface according to the communication type; obtaining sensor data of the sensor by means of the corresponding interface; parsing the sensor data to obtain a parsing result; uploading the parsing result to an external device, so that the external device modifies, updates, and stores a configuration file in the parsing result according to sensor parameters and data collected by the sensor in the parsing result; and obtaining the modified configuration file, and updating and storing same to the sensor. The method, apparatus and device can solve the problems in the prior art of a difficulty in the implementation of centralized monitoring, extremely low efficiency, and a big error of data collected by sensors.\nA: A vehicle controller, comprising: a main control module and an interface control module that are communicationally connected, wherein the interface control module is used for obtaining data collected by vehicle sensors, performing preprocessing on the data collected by the vehicle sensors, and sending the preprocessed data to the main control module; and the main control module is used for parsing the data sent by the interface control module to generate a corresponding control command, and sending the control command to a vehicle execution mechanism by means of the interface control module, so that the vehicle execution mechanism performs state adjustment according to the control command of the main control module. The automation and intelligence of rail transit are improved; a control mode is safe and reliable, and the safety and reliability of the rail transit are ensured. In addition, a device connection mode is simple; a processing resource is saved; a data transmission path is shortened; processing time of the vehicle controller is reduced; and a response speed is increased. Further disclosed are a vehicle control method and a vehicle.\nB: Disclosed in the present invention are n interface interactive assembly control method and apparatus. The method comprises: structuring and displaying an interface interactive assembly according to at least one piece of attribute information; collecting sensing data of at least one sensor of this machine and uploading the sensing data to a server, so as to obtain an attribute modification instruction that is made by the server according to the sensing data and that is used for changing the interactive state of the interface interactive assembly; and changing the attribute information of the interface interactive assembly according to the attribute modification instruction, so as to change the interactive state of the interface interactive assembly. In addition, the present invention also provides a wearable device for executing the interface interactive assembly control method. In the present invention, by fully using sensing data collected by a sensor carried by a wearable device, a server parses the sensing data and generates and changes the interactive state of the interface interactive assembly, and a user of the wearable device is stimulated by means of the interactive state of the interface interactive assembly.\nC: An automatic calibration system and method for a sensor. A sensor is used for collecting sensor data and uploading same to a gateway; the gateway transmits the sensor data uploaded by the sensor to a cloud platform; a standard metering module is used for obtaining real value data of the sensor data corresponding to each sensor and transmitting same to the cloud platform; the cloud platform is used for transmitting the obtained sensor data and the real value data to a big data platform; the big data platform is used for storing the obtained sensor data, the real value data, and other condition data that is automatically counted and affects the accuracy of the sensor and transmitting same to a calibration module; the calibration module is used for analyzing the obtained data to obtain a calibration model corresponding to a target calibrated sensor or obtain a calibration model by means of machine learning; the calibration model is used for calibrating data during sensor calibration and outputting a calibration result.\nD: A method and device for processing sensor data. The method comprises: creating corresponding file folders for different types of sensors, where one type of sensor monitors one corresponding monitored indicator (S101); receiving second data transmitted by the sensors, the second data comprising monitoring data and sensor identifiers; the second data being data satisfying a preset condition in first data collected by the sensors; the preset condition being the collection time of the first data falling within a preset time range or the value of the first data exceeding a preset range (S102); on the basis of the sensor identifiers, filing the monitoring data into the file folders corresponding to the sensors (S103); based on the monitoring data in the file folders, analyzing the monitoring data on the basis of a monitored area, and acquiring an abnormal trend of the monitored indicators (S104). The method files the received second data into the file folders corresponding to the identifiers, allows the corresponding use of the sorted sensor data in the file folders directly on the basis of the identifiers of the sensors, analyzes the data on the basis of the monitored area, acquires the abnormal trend of the monitored indicators, and provides high processing efficiency.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA data collection method for continuous physical quantities such as temperature and pressure, comprising: inputting a voltage signal, u, representing a continuous physical quantity; acquiring through an analog sampling channel (1) a sampling signal, u k , of an analog voltage, the sampling frequency being f Δh ; digital low-pass filtering u k  (6) to acquire a voltage signal (ũ k ) that has undergone low-pass filtering; re-sampling (ũ k ) to acquire a re-sampling signal, ũ j , re-sampling frequency, f Δy , being the same as the sampling frequency required by the application end, and the sampling frequency, f Δh , is  M  times the re-sampling frequency, f Δy ; storing and outputting the re-sampling signal, ũ j , to the application end. Provided is a corresponding device. The present invention lowers the cost of analog sampling channels. ū j , replacing ũ j , can be directly applied to industrial automation. In particular, the outputted ũ j  no longer contains a transient value, and can satisfy the input quantity requirements of steady-state models, and can inhibit random interference and enhance measurement precision.\nA: An anti-interference processing method during detection of CP signals by vehicle-mounted charger, comprising the following steps: step 1, capturing CP signals; step 2, determining whether the CP signals satisfy a preset pulse width, and reserving qualified CP signals satisfying the preset pulse width; step 3, performing amplitude limiting on the frequencies of the qualified CP signals; step 4, performing average filtering on the amplitude-limited frequencies to obtain smooth sampling frequency values; step 5, performing low-pass filtering on the smooth sampling frequency values; step 6, determining whether the frequency values of the CP signals satisfy Chinese standard requirements, if not, ending the capture, and if yes, calculating a duty cycle so as to continue to perform the next step; and step 7, performing low-pass filtering on the calculated duty cycle to obtain a final CP signal, and ending the capture. By means of the method, a stable CP signal can still be detected while CP signals are severely interfered.\nB: A method and device for sampling and compensating a blood pressure detection signal and a blood pressure signal acquisition system. The method comprises: controlling an ECG sampling module (61) and a PPG sampling module (62) to simultaneously sample a standard periodic signal, and obtaining a sampling frequency and a sampling ending time respectively; compensating a sampling start time and the sampling frequency of the ECG sampling module (61) or the PPG sampling module (62), such that a deviation of the sampling frequency is lower than a preset frequency threshold and the difference between the sampling ending times is lower than a preset time threshold.\nC: The present invention relates to a steady-state processing method and device for digital measurement or telemetry of an electric power system, including: inputting a data sequence {y k } = {y k , y k-1 ,... y k-N } of the digital measurement or telemetry of a physical quantity y; according to the data sequence {y k }, calculating the n+1 order derivative of y, n = 0, 1,..., until a formula (I) is satisfied, so as to determine n; performing variable substitution with a formula (II), and calculating a data sequence {x k }; judging that a current numerical value x k  is located in a transient-state process or a steady-state process; when the current numerical value x k  is judged to be located in the steady-state process, calculating an average value as a steady-state value according to {x k }; and performing integral inverse transformation, and solving the steady-state value of y from. Also proposed is another steady-state processing method and device for digital measurement or telemetry of an electric power system by adopting a Kalman filter to substitute for the above derivation process. The present invention is applicable to two conditions of the field of digital measurement or telemetry, and performs accurate steady-state processing in the whole process of determining the physical quantity of an electric power system.\nD: A variable-sampling rate Fourier analysis method, comprising the following steps: S100, comparing an initially set sampling frequency to preliminarily sample a signal to be analyzed, and then analyzing the fundamental frequency and fundamental amplitude of said signal by means of Fourier analysis; S200, performing preliminary determination on the fundamental amplitude obtained by the analysis, determining a sampling frequency that satisfies the whole cycle truncation, and resampling the signal; S300, performing Fourier analysis on the sampled signal, and using a triple-spectrum-line method to determine an optimal sampling frequency, i.e., an optimal sampling frequency that satisfies the whole cycle truncation and has no spectral leakage; and S400, resampling the signal to obtain the frequency and amplitude of each sub-harmonic. The variable-sampling rate Fourier analysis method can implement high-precision high-frequency signal acquisition and analysis by using a small sampling rate, thereby reducing the cost of the acquisition system and increases the analysis speed.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA piezoelectric vibration sensor, comprising an upper cover plate structure, a positioning plate (1), a lower cover plate structure, a piezoelectric element (2) and a circuit mechanism (3); the upper cover plate structure, the positioning plate (1) and the lower cover plate structure are arranged in sequence, and form a cavity therein; a channel (13) is provided on a positioning plate body, one end of the channel (13) is in communication with the cavity, and the other end of the channel is in communication with the atmosphere; one end of the piezoelectric element (2) is provided in the channel (13), and the other end of the piezoelectric element is provided in the cavity; and the circuit mechanism (3) is provided on the positioning plate body (11) and located in a first chamber, and an upper electrode and a lower electrode are led out from the piezoelectric element (2), and the piezoelectric element is connected to the circuit mechanism (3). The piezoelectric vibration sensor has a stacked structure, and the piezoelectric element is embedded in the cavity formed by the cover plates, reducing the space occupation rate of a product, having a small volume and enlarging the usage range; in addition, the design of the stacked structure enables, during production, batch processing or large-scale automated production, improving the production efficiency.\nA: A shear-type piezoelectric sensor (100) and a method for manufacturing the shear-type piezoelectric sensor (100). The shear-type piezoelectric sensor (100) comprises: a collar (101), a piezoelectric element (105), and a mass (106), wherein the collar (101) is disposed outside a fastening nail (102), the fastening nail (102) can be screwed onto a support (104) arranged on a base (103); the piezoelectric element (105) is disposed outside the collar (101); the mass (106) is disposed outside the piezoelectric element (105), the collar (101) is expanded as the fastening nail (102) is screwed onto the support (104), the piezoelectric element (105) is expanded by an expanding force transferred from the collar (101), and the mass (106) is expanded by an expanding force transferred from the piezoelectric element (105).\nB: The present invention provides a camera module, an optical anti-shake method thereof, and an electronic device. At least one piezoelectric actuator is transmittingly connected to the photosensitive assembly. The piezoelectric actuator comprises a piezoelectric element, a drive shaft, and a moving member. One end of the piezoelectric element is fixed, and the drive shaft is arranged on the piezoelectric element. The drive shaft is in frictional contact with the moving member. The piezoelectric element drives the drive shaft, and the drive shaft drives the moving member by friction, so that the piezoelectric actuator drives the photosensitive assembly to move in an X-axis direction and/or a Y-axis direction so as to realize optical anti-shake of the camera module.\nC: A heat dissipation module is used for a device provided with heat dissipation teeth. The heat dissipation module comprises a fixing apparatus and at least two vibration units, wherein each of the vibration units comprises a piezoelectric element and a solid piece. The piezoelectric element in each of the vibration units is connected to one end of the solid piece in the vibration unit. The fixing apparatus is connected to the piezoelectric element in each of the vibration units and used for fixing the module. According to a preceding technical scheme, the heat dissipation module comprises the at least two vibration units and the piezoelectric element is connected to the one end of the solid piece in any one of the vibration units. Therefore, when the piezoelectric element vibrates, the solid piece can be driven to swing, thus providing outside wind for the device provided with the heat dissipation teeth and implementing a heat dissipation effect. In addition, because rotating components such as a bearing and the like are not used any more, not only power consumption is lowered, but also noise is reduced. Also provided are a dissipation system, a control method and a related device.\nD: The present description provides a vibration sensor and a microphone, composed of a piezoelectric system and a capacitive system. The piezoelectric system comprises a vibrating component and a piezoelectric sensing component that collects a first electrical signal generated due to deformation of the vibrating component. The capacitive system uses the vibrating component in the piezoelectric system as a movable capacitive plate in the capacitive system, and a fixed substrate and the vibrating component are arranged opposite each other to form a capacitive vibration sensor. The deformation of the vibrating component causes the distance between the vibrating component and the fixed substrate to change, and a capacitive sensing component collects a second electrical signal generated due to the change in the distance. The capacitive sensing component is arranged in an area, in which the first electrical signal is low, in the piezoelectric system, so that the space of the vibration sensor can be rationally utilized, and second electrical signals collected by the capacitive system can be increased without affecting the output of the first electrical signal of the piezoelectric system, thereby improving the sensitivity of the vibration sensor and also increasing the space utilization.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a laser wavelength measurement device (2) and method. The laser wavelength measurement device (2) comprises: a first optical path assembly and a second optical path assembly, the first optical path assembly and the second optical path assembly constituting a laser wavelength measurement optical path, wherein the second optical path assembly comprises an FP etalon assembly (11) and an optical classifier (13); a homogenized laser beam passes through the FP etalon assembly (11) to generate interference fringes; and the optical classifier (13) is arranged, in the laser wavelength measurement optical path, behind the FP etalon assembly (11) for carrying out deflection processing on the laser beam passing through the FP etalon assembly (11). The FP etalon assembly (11) has two FP etalons (FP1, FP2) sharing the same optical path for interference imaging, is compact in terms of structure, is small in size, and has a simple design and high stability, and in cooperation with the optical classifier (13), same can achieve the precise measurement of a laser wavelength and has a large wavelength measurement range, and is adapted for the on-line measurement of a laser wavelength and corresponding closed-loop control feedback.\nA: A method for correcting an air refractive index in large-range absolute distance (D) measurement. Self-correction of the air refractive index in the absolute distance (D) measurement is implemented by using a two-color method based on a single wavelength (λ 1 ) of a laser and a synthetic wavelength. Two laser devices (1, 2) respectively output a laser beam having a fixed wavelength and a laser beam having an adjustable wavelength; a chain of synthetic wavelengths (λ S1 , …, λ Si , …, λ Sn ) from large to small is constructed by a laser interference system (II); each stage of synthetic wavelength meets an inter-stage transition condition, and a minimum synthetic wavelength (λ Sn ) can transition to a single wavelength (λ 1 ); to-be-measured absolute distances (D) are respectively measured to obtain optical distance estimated values (L S1 , …, L Si , …, L Sn ) of which the precision is gradually improved; optical distances (L Sn , L 1 ) corresponding to the minimum synthetic wavelength (λ Sn ) and the single wavelength (λ 1 ) are simultaneously obtained; a corrected absolute distance (D) is obtained according to a two-color method air refractive index correction principle. The present method is applicable to large-range distance measurement and high-precision distance correction, relates to full-path correction of an air refractive index along an actual measurement optical path, and is easily implemented due to low measurement precision requirements for environmental parameters, such as temperature and pressure.\nB: An optical system for use in a laser interferometer for measuring the straightness of a guiding rail comprises: a detection optical assembly (1); an optical deflecting mirror (2); a rotatable laser head (3); and an outer light path assembly. The detection optical assembly (1) realizes two-pass optical detection of a light beam passing therethrough. The optical deflecting mirror (2) is used to realize a downward movement and rotation of the light beam so as to adapt to a detection requirement of the detection optical assembly. The rotatable laser head (3) is a rotatable back-reflection element disposed between the detection optical assembly (1) and the outer light path assembly. The outer light path assembly is used to measure an outer light path of an optical system. The optical deflecting mirror (2) simplifies an arrangement and steps for straightness measurement in a vertical direction. The detection optical assembly (1) realizes two-pass optical detection, thereby reducing the number of optical members in the optical system, maximizing utilization of the optical members, and reducing the space required for an instrument. Moreover, the design of a hole for a back-reflected laser beam at the rotatable laser head (3) fully exploits an existing hole and is thus more reasonable.\nC: A laser light path system (10) and a projection device, relating to the technical field of projected display. The laser light path system (10) comprises a laser (11), a light combining mirror (12), a loop assembly (13), and a fluorescence assembly (14). The light combining mirror (12) comprises a first region (121) and a second region (122), and an included angle between a light emitting direction (f1) of the laser (11) and a mirror surface of the first region (121) is an acute angle. A light beam (S) emitted by the laser (11) comprises a first light beam (S1) that passes through the first region (121) and is emitted to the fluorescence assembly (14), the fluorescence assembly (14) generates fluorescence (S3) under the excitation of the first light beam (S1) and reflects the fluorescence (S3) to the second region (122), and the second region (122) reflects the fluorescence (S3) towards a light outlet (15). Moreover, the light beam (S) emitted by the laser (11) further comprises a second light beam (S2) reflected by the first region (121) to the loop assembly (13), and the loop assembly (13) reflects the second light beam (S2) to the first region (121) again and emits the second light beam (S2) towards the light outlet (15) synchronously with the fluorescence (S3) through the first region (121).\nD: Disclosed is a high-accuracy interference wavelength measuring instrument, comprising an optical input port, a light shield, an off-axis parabolic mirror, a first flat glass, a second flat glass, at least two cylindrical lenses, and at least two linear photodetectors. An isolation frame having a hollow area at the center and having wedge angles is arranged between the first flat glass and the second flat glass so as to form a sealed cavity, and the front surface of the first flat glass and the back surface of the second flat glass are arranged opposite to each other; one side of the front surface of the first flat glass is provided with at least one small flat glass having a thickness and located in the sealed cavity, the other side of the front surface is provided with a first reflective layer, and the back surface of the second flat glass is provided with a second reflective layer. According to the high-accuracy interference wavelength measuring instrument of the present invention, in the case of not increasing the optical path size, the detected spectral range is wide, optical wavelength light of various wavelength types can be accurately measured at the same time, and the pm-level measurement accuracy is achieved.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA high-resolution temperature sensor based on a built-in liquid capsule (2) and a spectrum valley point. The high-resolution temperature sensor is composed of the built-in liquid capsule (2), a metal block (3), a vertical waveguide (4), a horizontal waveguide (5), two metal films (1, 6) and horizontal signal light (200). Broadband light or frequency sweeping light is adopted by the signal light (200). The liquid capsule (2) is connected with the vertical waveguide (4). The metal block (3) is arranged in the vertical waveguide (4) and is movable. The vertical waveguide (4) is connected with the horizontal waveguide (5). The temperature sensor has a compact structure and a small volume, and it is convenient for integration . And the sensitivity of the temperature sensor can reach -274nm/℃.\nA: A liquid crystal-based chip filter, comprising: a chip substrate layer, the chip substrate layer being a liquid crystal layer that is distributed with liquid crystal molecules; a chip conductive core layer, which is disposed on a surface of the chip substrate layer, the chip conductive core layer being a liquid crystal layer that is distributed with liquid crystal molecules, and the chip conductive core layer comprising: a double-straight waveguide part (1) and a resonant cavity part (2) which is transmittingly coupled to the double-straight waveguide part (1), the double-straight waveguide part being used for achieving the input of white light or a multispectral light source and the output of any wavelength light; and driving electrodes (3), which are used for driving the arrangement of the liquid crystal molecules within the chip substrate layer, double-straight waveguide part (1) and resonant cavity part (2) to change, changing the refractive index of corresponding parts thereof. A tunable filtering function is achieved by using liquid crystal modulation, and the main working band under low-voltage drive can cover a near-ultraviolet to a near-infrared band and a main communication band; in addition, the volume is small and the filter is easily integrated.\nB: A planar optical waveguide device (3) and a temperature measurement system. The system comprises a detection light source (1), a photoelectric detector (2), a planar optical waveguide device (3), and a measurement optical fiber (4). The planar optical waveguide device (3) comprises a substrate (5). The substrate (5) is internally provided with N temperature detection channels (31). Each of the temperature detection channels (31) comprises an incident light path (311), a reflected light path (312), and an emergent light path (313). In the N temperature measurement channels (31) arranged in parallel, a point of intersection is provided between the incident light path (311) of one temperature measurement channel (31) and the reflected light path (312) of at least one of the other temperature measurement channels (31). The detection light source (1) is in communication with the incident light path (311). The photoelectric detector (2) is in communication with the reflected light path (312). The measurement optical fiber (4) is in communication with the emergent light path (313). A FBG sensor is provided within the measurement optical fiber (4). During a multi-channel temperature measurement, the point of intersection is provided between an incident light path (311) of one temperature measurement channel (31) and the reflected light path (312) of at least one of the other temperature measurement channels (31) in the N temperature measurement channels (31) arranged in parallel so as to achieve transmission, measurement, and demodulation of optical signals.\nC: A full-polarization-state integer ratio power distributor with a photonic crystal waveguide, comprising: a photonic crystal waveguide formed in a photonic crystal with a complete band-gap, wherein the photonic crystal consists of an array of background dielectric cylinders (6); the photonic crystal waveguide consists of a transverse waveguide(1,3) and a perpendicular waveguide (2) perpendicularly connected to the transverse waveguide(1,3); one end (1) of the transverse waveguide is an input end, and the other end (3) thereof is an output end; the perpendicular waveguide (2) is another output end; and the middle of the transverse waveguide (1,3) is provided with waveguide flaw dielectric cylinders (5). The full-polarization-state integer ratio power distributor is small in structural volume and high in light transmission efficiency, easy to integrate and highly efficient, suitable for large-scale optical path integration, and can realize a full-polarization-state integer ratio power distribution function.\nD: An optical switch on the basis of MIM high-sensitivity SPP, consisting of: a rectangular chamber (1), a control light absorption chamber (2), a silver block (3), a vertical waveguide (4), a horizontal waveguide (5), three metal films (7), a terahertz control light (100), and a horizontally propagating signal light (200); the rectangular chamber (1) is located at an input terminal of the control light; the control light absorption chamber (2) is connected to the vertical waveguide (4); the silver block (3) is disposed within the vertical waveguide (4) and can be moved; the vertical waveguide (4) and the horizontal waveguide (5) are connected; the terahertz control light (100) is located at an upper end of the rectangular chamber (1); said MIM is a waveguide having a metal-insulator-metal structure. The optical switch is compact in structure, small in size, highly sensitive and easily integrated; the optical switch provides turn-on and turn-off functions, wherein a light extinction ratio thereof may be up to 10dB.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a thermocouple sensor with a long service life. The thermocouple sensor comprises a junction box (1), wherein a steel tube (3) is fixedly connected to the right side of the junction box (1), the inner surface of the steel tube (3) is covered by a shielding layer (4), the inner surface of the shielding layer (4) is covered by an insulating layer (5), the inner surface of the insulating layer (5) is covered by a thermocouple wire (6), the outer surface of the steel tube (3) is coated with an anti-corrosion layer (7), and the anti-corrosion layer (7) is composed of a chlorosulfonated polyethylene layer (71) and a silicon nitride coating layer (72). By means of providing the insulating layer (5), the insulating effect of the thermocouple sensor is good, and the phenomenon of the thermocouple sensor being prone to conducting electricity during operation is avoided. The chlorosulfonated polyethylene layer (71) has good ageing resistance and chemical atmospheric corrosion resistance, and good durability. The silicon nitride coating layer (72) has the advantages of good lubricity, wear resistance and strong toughness, and does not chemically react with most acids, and by means of providing the silicon nitride coating layer (72), the corrosion resistance can be enhanced.\nA: A sample (6) for measuring galvanic corrosion between a conductive coating (3) and a protected substrate (1), and an evaluation method therefor. A microporous insulating layer (2) is arranged between the conductive coating (3) and the substrate (1). The microporous insulating layer (2) is formed of an insulating material, and has a microporous structure therein. The microporous structure is filled with a conductive medium, and then ion channels are formed between the conductive coating (3) and the surface of the substrate (1). The substrate (1) and the conductive coating (3) are each connected to an independent lead (5). The sample (6) can more comprehensively evaluate galvanic corrosion between a conductive coating (3) and other conductive materials.\nB: An ultra-small high-sensitivity two-dimensional anemometer, comprising: a base (1), an insulation dielectric layer (2), a square frustum (3), a heating element (4), and four temperature-measuring thermocouple piles (51). The invention provides an ultra-small high-sensitivity two-dimensional anemometer and a corresponding manufacturing method for the ultra-small high-sensitivity two-dimensional anemometer, and has the following advantages: 1) the frustum structure creates a height difference between a measurement plane and a plane where a welding lead is located, thereby facilitating packaging of a sensor; 2) the thermocouple of the sensor is placed approximately vertically, and a cold end thereof is sealed by an encapsulation adhesive and kept at the same temperature as the base and an outer casing, thereby effectively ensuring temperature uniformity of the cold end and causing the sensor to have good resistance to temperature drift; 3) the frustum structure greatly reduces the lateral dimension of the thermocouple and decreases the size of the device; and 4) a high-sensitivity surface of the sensor is closely attached to the outer casing with no encapsulation adhesive exposed to the air, thereby improving reliability of the sensor.\nC: A corrosion-resistant graphene oil delivery pipe, comprising a PVC (polyvinyl chloride) polyethylene inner layer (1); adhesion assisting holes (2) are uniformly arranged on the outer wall of the PVC polyethylene inner layer, the outer wall of the PVC polyethylene inner layer (1) is coated with a butyl rubber layer (3), the outer wall of the butyl rubber layer (3) is uniformly coated with an antistatic layer (4), cushion rubber lugs (5) are uniformly and annularly adhered on the outer wall of the antistatic layer (4) by means of an adhesive, the outer wall of the butyl rubber layer (3) is wrapped with a metal mesh layer (6), the cushion rubber lugs (5) are positioned between the butyl rubber layer (3) and the metal mesh layer (6), and the outer wall of the metal mesh layer (6) is coated with a graphene outer layer (7). Further disclosed is a preparation method for the corrosion-resistant graphene oil delivery pipe. The corrosion-resistant graphene oil delivery pipe is provided with an antistatic layer, such that the phenomenon that delivered petroleum is ignited due to static electricity generated in use of the oil delivery pipe is avoided; the PVC polyethylene inner layer, good in corrosion resistance, is disposed to be in a direct contact with petroleum; and the graphene outer layer with anti-corrosion property protects the outer wall of the oil delivery pipe.\nD: A thin film type thermocouple, comprising a substrate (10), a thermocouple unit (20) provided on one side of the substrate (10) and comprising a first metal electrode (22) and a second metal electrode (24), one end of the first metal electrode (22) being connected to one end of the second metal electrode (24); and a heat conduction member (30) provided on one side of the substrate (10) distant from the thermocouple unit (20), and corresponding to the position where the first metal electrode (22) is connected to the second metal electrode (24). The thin film type thermocouple is small in size and high in heat conduction rate. Also provided are a temperature sensor (200) having the thin film type thermocouple, and an intelligent wearable device.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a sound classification method, device and medium based on semi-nonnegative matrix factorization with constraint. The sound classification method comprises the following steps: representing a training sound data sample and a testing sound data sample as a semi-nonnegative matrix (S1); constructing a category constraint matrix and a sparse constraint matrix according to the semi-nonnegative matrix (S2); performing semi-nonnegative matrix factorization with constraint on the semi-nonnegative matrix under category constraint and sparse constraint to obtain a corresponding coefficient matrix; training a classification model to obtain a classifier by using low-dimensional representation in the coefficient matrix corresponding to the training sound data sample and category information of the training sound data sample as training data (S3); inputting the low-dimensional representation in the coefficient matrix corresponding to the testing sound data sample into the classifier, and outputting a classification result of the testing sound data sample (S4). The method makes effective use of the category information of the training sound data sample and enables the low-dimensional representation after dimension reduction to have sparsity, thereby obtaining the low-dimensional representation of samples with better discrimination and improving the accuracy of the sound data classification method.\nA: A schizophrenia classification and identification method, an operation control apparatus, and medical equipment. The method comprises: acquiring a data sample, and preprocessing the data sample to obtain a functional connection matrix (S100); inputting the functional connection matrix into a convolutional layer of a multi-kernel capsule network, providing several convolutional kernels of different sizes in the convolutional layer, and extracting connection information from the functional connection matrix by means of each convolutional kernel to obtain capsules, wherein the capsules are represented in the form of vectors, the directions of the vectors represent attributes, and the lengths of the vectors represent the probabilities of the corresponding attributes (S200); inputting the capsules into a capsule layer of the multi-kernel capsule network, iteratively updating a weighting matrix on the basis of a random capsule inactivation strategy and by using a routing protocol algorithm, and then converting the capsules into prediction vectors by means of the weighting matrix (S300); carrying out weighted summation on the prediction vectors and then inputting same into a classification capsule layer of the multi-kernel capsule network, and according to an edge loss function, updating a network connection weight value by using a backpropagation algorithm (S400); and performing training according to the multi-kernel capsule network to obtain a final weight value, and then performing calculation according to the final weight value to obtain a classification result of the data sample, so as to classify schizophrenia therefrom. The method can realize the classification and identification of schizophrenia, improve the classification accuracy, and improve the performance and robustness of a classification method.\nB: A lung sound classification method and system based on knowledge distillation, a terminal, and a storage medium. The method comprises: obtaining a lung sound audio, extracting Mel frequency spectrum features of the lung sound audio on the basis of the lung sound audio, and obtaining a lung sound data set (S100); training a plurality of teacher models on the basis of the lung sound data set to obtain a plurality of trained teacher models (S200); respectively calculating soft labels of the lung sound data set according to the plurality of trained teacher models, and performing conversion to obtain multi-classification soft labels (S300); and training a student model on the basis of the multi-classification soft labels and the lung sound data set to obtain a trained student model, and classifying the lung sound audio by utilizing the trained student model (S400). According to the method, on the basis of knowledge distillation, student model learning is guided by utilizing knowledge of a plurality of teacher models, so that multi-party lung sound audios are fully utilized, and the lung sound audios are accurately classified.\nC: A remote sensing image feature extraction method employing tensor collaborative graph-based discriminant analysis comprises: taking each pixel as a center to extract a three-dimensional tensor data block; dividing, according to a certain ratio, experimental data into a training set and a test set; calculating a Euclidean distance between a current training pixel and each category of training data, and constructing a diagonal weight constraint matrix; then designing a constrained L2-norm collaborative representation model, and constructing a graph weight matrix and a tensor locality-preserving projection model; obtaining projection matrices for respective dimensions of a corresponding tensor data block; and finally, using a low-dimensional projection matrix to obtain a training set and a test set in the form of three-dimensional low-dimensional representations, inputting extracted low-dimensional features into a support vector machine classifier and classifying same by expanding feature dimensions into column vectors, determining a category of the test set, and evaluating feature extraction performance according to the classification result.\nD: A face recognition construction method and system based on non-linear non-negative matrix decomposition, and a storage medium. The method comprises: depicting the degree of loss after matrix decomposition by using l  2,p -norm; enhancing the sparsity representation of a feature by using l  1 -norm of a matrix, and adding a regularization term regarding a matrix H into a loss function; constructing a target function F(W,H) by means of a degree of loss depicting step and a sparsity enhancement step; and obtaining an update iteration formula for kernel non-negative matrix decomposition of fractional power inner product. The method can solve the problem that a kernel non-negative matrix decomposition algorithm is sensitive to a singular value, can enhance the sparsity of the algorithm to feature representation, and also solves the problem that super parameters of a polynomial kernel function can only be integers.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA pressure sensing device according to an embodiment of the present disclosure comprises: a sensor, comprising: a sheet-shaped piezoresistive material layer, and a first electrode structure and a second electrode structure which are arranged oppositely on both sides of the piezoresistive material layer. A surface, facing the piezoresistive material layer, of the first electrode structure and/or the second electrode structure is provided with two or more protrusions, so as to form an uneven surface.\nA: A pressure sensor and preparation method therefor. The pressure sensor comprises two external connection electrodes (30) and two oppositely provided elastic substrates (10); a contact surface of at least one substrate (10) is provided with protrusion structures (11); the contact surfaces are the surfaces of the two substrates (10) that are opposite to each other; the substrates (10) are conductors; each substrate (10) is connected to an external connection electrode (30); the surfaces of the protrusion structures (11) are covered with conductive layers (20). The pressure sensor not only uses the piezoresistive effect that the resistance changes due to that the elastic conductive substrates (10) deform under the action of pressure, but also uses the effect that the contact resistance changes due to that the contact areas of the conductive layers (20) on the surfaces of the protrusion structures (11) of the substrates (10) change under the action of pressure, thereby greatly widening the pressure measurement range by means of the synergetic action of the two effects and further improving the sensitivity and the reliability of the pressure sensor.\nB: A pressure touch sensor (100), a display device and a driving method therefor. The pressure touch sensor (100) comprises: a driving electrode (110) and a sensing electrode (120), and a piezoelectric material layer (130) and a piezoresistive material layer (140) arranged between the two.\nC: An electroluminescent device, a touch display panel, and a touch display apparatus. The electroluminescent device comprises: an array substrate (101), a first electrode layer (102), an electroluminescent layer (103), a second electrode layer (104), and a pressure sensing layer (105) which is separately electrically connected to the first electrode layer (102) and the second electrode layer (104). The pressure sensing layer (105) is a strain resistance material layer. The strain resistance material layer (105) is driven by a power supply voltage provided by the first electrode layer (102) and the second electrode layer (104) to output a voltage signal.\nD: Provided are a capacitive accelerometer of an H-shaped beam and a manufacturing method for the accelerometer. The accelerometer at least comprises: a first electrode structure layer (1), an intermediate structure layer (2), and a second electrode structure layer (3). The first electrode structure layer (1) and the second electrode structure layer (3) respectively are provided with electrode lead-out through holes (9). The intermediate structure layer (2) comprises: an edge frame formed on an oxygen-containing silicon substrate having dual component layers, bilaterally symmetric mass blocks (4), and a bilaterally symmetric H-shaped flexible beam (8) having one beam connected to the edge frame and the other beam connected to the mass block. Anti-overload bumps (5) and damper adjustment grooves (7) are symmetrically arranged on two sides of two mass blocks (4). Also, the H-shaped flexible beam (8) and a bulk silicon layer of the oxygen-containing silicon substrate satisfy therebetween the condition of: √2(a+b+c) < h, where √2d < h, a and c are the widths of the two beams, b is the gap between the two beams, d is the width of the connections where the beams and the mass blocks are connected, and h is the thickness of the bulk silicon layer. The manufacturing method is simple and has a high yield. Components formed are provided with a high degree of normal symmetry, great resistance against lateral impacts and torsional impacts, and reduced cross-sensitivity.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a system for testing the comprehensive performance of a driverless vehicle. The system comprises a foundation platform (1), a lateral movement platform (2) mounted on the foundation platform (1), and a revolving platform (3) mounted on the lateral movement platform (2), wherein the foundation platform (1) is provided with a lateral movement guide rail (11) for guiding the lateral movement platform (2) to slide left and right, and a lateral movement electric motor for driving the lateral movement platform (2) to slide left and right; two front wheel supports (6) capable of sliding left and right, and a front wheel distance adjusting mechanism (91) are arranged on a front portion of the revolving platform (3); two rear wheel supports (8) capable of sliding forwards and backwards, and an axle distance adjusting mechanism (92) are arranged on a rear portion of the revolving platform (3); each of the front wheel supports (6) is provided with a front wheel drum frame (7) capable of rotating horizontally; each front wheel drum frame (7) is provided with a front wheel drum (4), and a front wheel load electric motor for driving the rotation of the front wheel drum (4); and each of the rear wheel supports (8) is provided with a rear wheel drum (5), and a rear wheel load electric motor for driving the rotation of the rear wheel drum (5). The system can test the longitudinal and lateral performance of a driverless vehicle.\nA: A foldable stroller, comprising a front wheel support (1), a rear wheel support (2), a middle support (3), a front support (4), a push rod (5), a rear supporting rod (6), a seat rod (7) and a basket rod (8); the front wheel support (1), the front support (4) and the basket rod (8) are connected to be in a mutually rotatable relationship; the front end of the middle support (3) is movably connected to the front wheel support (1); the rear wheel support (2), the rear supporting rod (6) and the rear end of the middle support (3) are connected to be in a mutually rotatable relationship; the basket rod (8) is movably connected to the rear wheel support (2); the front support (4) is movably connected to the push rod (5) and the seat rod (7) respectively; the push rod (5) is movably connected to the rear supporting rod (6); and the seat rod (7), the rear supporting rod (6) and the rear end of the middle support (3) are connected to be in a mutually rotatable relationship.\nB: A smart car vehicle-in-the-loop test system comprising: a drum platform (1) used for conducting simulation tests of the longitudinal movement of a vehicle; an environment sensing platform (2) installed on the front end of the drum platform (1) which is used for conducting simulation tests of the lateral movement of the vehicle and comprises a support base (10) as a lower part and an vehicle placement platform (7) as an upper part, lateral driving wheels (11) being installed in the lower part of the support base (10), said lateral driving wheels (11) moving along a lateral track (12) disposed on the ground; and a target vehicle simulation unit disposed at the periphery of the environment sensing platform (2) and used for simulating a target vehicle. The environment sensing platform (2) is capable of lateral movement, and thus can conduct simulation tests of test scenarios in which a vehicle changes route or changes lanes, can test yawing, pitching and rolling motions of a vehicle in a way that is more true to such processes in reality, and can conduct a simulation test of a dangerous oncoming traffic scenario for a vehicle. The platform also provides a mechanism for reproducing the true steering resistance moment of a vehicle when the vehicle changes direction, causing a vehicle steering operation to have the correct response speed.\nC: A foldable stroller frame, comprising: a front wheel support frame (1), a rear wheel support frame (2) rotatably connected to the front wheel support frame (1), a side handrail (3) rotatably connected to the rear wheel support frame (2), a rear bracing rod (5) rotatably connected to the rear wheel support frame (2) at a first position of the rear wheel support frame (2), a push rod (4) connected to the side handrail (3) and the rear bracing rod (5) so as to rotate on different axes, a sliding sleeve (8) disposed on the rear wheel support frame (2), and a front wheel support frame connecting rod (6), a first end of said front wheel support frame connecting rod (6) being rotatably connected to the sliding sleeve (8), and a second end of the front wheel support frame connecting rod (6) being rotatably connected to the front wheel frame (1); and a side handrail connecting rod (7), a first end of said side handrail connecting rod (7) being rotatably connected to the sliding sleeve (8), and a second end of the side handrail connecting rod (7) being rotatably connected to the side handrail (3).\nD: A three-wheel scooter, provided with a front wheel support member (4) between the two front wheels; bearings (5, 6) are disposed respectively above and below the central hole of the front wheel support member (4); the bearings (5, 6) are provided with a double-threaded shaft (7) therein; the double-threaded shaft (7) uses two nuts (8, 9) to lock a stop collar (10) and the front portion of a pedal (3) to the front wheel support member (4); the top of the double-threaded shaft (7) is connected to a handle tube (11) via the pedal (3), and the top of the handle tube (11) is provided with a handlebar (12); behind the pedal (3) is provided a rear wheel (13); a torsion spring (14) is provided between the front wheel support member (4) and the stop collar (10), and is sleeved on the double-threaded shaft (7), with the two ends of the torsion spring (14) being respectively connected to the front wheel support member (4) and the stop collar (10); the torsion spring (14) sets the initial angle of the axle line of the front wheel support member (4) to be parallel to the axle line of the rear wheel (13); a rotary stopping boss (4c) is provided around the central hole of the front wheel support member (4); a corresponding rotary stop recess (10b) is provided in the stop collar (10); and the rotary stop boss (4c) is inserted into the rotary stop recess (10b). The three-wheel scooter provides automatic steering return, and has good storage stability and convenience.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn integrated online measurement system for thermophysical property parameters of nanofluid cutting liquid, consisting of a gas path system, a liquid path system, a nanofluid heat conductivity coefficient measuring device, a nanofluid cutting liquid convective heat transfer coefficient and fluid/workpiece energy ratio coefficient measuring device, and a grinding force and grinding temperature measuring device or a milling force and milling temperature measuring device. The nanofluid heat conductivity coefficient measuring device is located in the liquid path system; the guras path system provides presse for nanofluid in the liquid path system, and two nozzles are led out from the liquid path system; the nanofluid spray ejected by the nozzle I is sprayed onto the surface of a workpiece I, so as to form the nanofluid cutting liquid convective heat transfer coefficient and fluid/workpiece energy ratio coefficient measuring device; and the nanofluid spray ejected by the nozzle II is sprayed onto the surface of a workpiece II, so as to form the grinding force and grinding temperature measuring device.\nA: Provided is a heat transfer coefficient measurement device, comprising a test chamber (9), a hot-end heating system (10), a cold-end cooling system (14), an evacuation system (12), a temperature acquisition system and processing system (13), and a pressure control system (11); a test bench (15) is arranged inside the test chamber (9), the test bench (15) being an overall upper and lower structure: in sequence from bottom to top are a heating block (8), a lower pressure head (7), a sample to be tested (5), an upper pressure head (2), and a cooling block (1). A temperature-measurement-point horizontal multipoint arrangement simulates the horizontal temperature gradient of the tested sample, so as to objectively reflect the heat transfer attributes of the tested sample, and with the aid of data processing, obtain a more objective heat transfer coefficient value. At the same time, a flexible thin sheet (16) having a high thermal conductivity is arranged between the sample to be tested (5) and the pressure heads (7, 2), reducing thermal contact resistance and improving the accuracy of test values. Moreover, a limiting ring (4) is arranged between the pressure heads so as to ensure testing operability and precision when testing flexible samples. The accuracy and objectivity of heat transfer coefficient testing is significantly improved.\nB: A minimal quantity lubrication grinding device capable of controllably transporting a nanoparticle jet flow under a magnetically enhanced electric field. The charge quantity of liquid drops is increased through the addition of a magnetic field at the periphery of a corona zone. The minimal quantity lubrication grinding device comprises a spray nozzle which is externally provided with a high-voltage direct current electrostatic generator and a magnetic field forming device; the spray nozzle is connected with a nanoparticle liquid supply system and a gas supply system; the high-voltage direct current electrostatic generator is connected with the negative pole of an adjustable high-voltage direct current power supply, while the positive pole of the adjustable high-voltage direct current power supply is connected with a workpiece power-up device which is used for being attached to a non-machined surface of a workpiece, and consequently the form of negative corona discharge is created; the magnetic field forming device is arranged at the periphery of the corona zone with electrostatic discharge; and a nanofluid grinding liquid is sprayed out of a spray head of the spray nozzle and atomized into liquid drops, which at the same time are charged under the action of the high-voltage direct current electrostatic generator and the magnetic field forming device and then fed into a grinding area.\nC: Disclosed is a multi-angle two-dimensional ultrasonic vibration assisted grinding device of a nano-fluid minimum quantity lubrication type, comprising components, such as a workpiece clamp (I-9) for clamping a workpiece (I-12), a grinding wheel (II-3) for grinding the workpiece, a two-dimensional ultrasonic vibration device connected to the workpiece clamp, and a nozzle (II-6) arranged on one side of the grinding wheel and used for spraying a nano-fluid at the workpiece. The device can improve the processing quality of workpieces and prevent thermal damage to the workpieces.\nD: A preparation method for a perfluorotriethylamine group-based highly thermally conductive and lubricating nanofluid, belonging to the field of composite liquid working medium preparation for fluid circuit systems for spacecrafts. The preparation of a fluorinated graphene-perfluorotriethylamine group nanofluid realizes efficient heat exchange and effective lubrication of a fluid circuit system. The present invention successfully prepares multi-layer fluorinated graphene by fluorinating graphene oxide by means of the hydrothermal method and using hydrofluoric acid as a fluorinating reagent, the experimental apparatus being simple, and the preparation process being easy to operate. Furthermore, the fluorine content in the surface of the graphene can be adjusted controllably. The fluorinated graphene has good dispersibility in the perfluorotriethylamine working medium, and as no dispersant is required, the thermal resistance of the heat transfer interface can be reduced and the thermal conductivity of the nanofluid can be significantly improved. Fluorine atoms are inserted between layers of the graphene, increasing spacing between the layers, reducing the force between the layers; moreover, the strong repulsive force between the fluorine atoms facilitates sliding between the layers, significantly improving the abrasion-reduction and lubrication performance of the nanofluids.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a friction test device for testing the friction performance of a coating of a cutting tool (24). The device comprises a rotary fixing mechanism, a cutting mechanism, a feed motion mechanism, a friction mechanism, a data collection mechanism and a pressure regulating mechanism. The rotary fixing mechanism comprises a three-jaw chuck (11), a first driving device used for driving the three-jaw chuck (11) to rotate in a circumferential direction, and a columnar workpiece (13), which is fixedly mounted on the three-jaw chuck (11) and used in a friction test. The cutting mechanism comprises a pedestal (21), a cutting base (22), a turret (23) mounted on the cutting base (22), and a cutting tool (24) mounted on the turret (23), wherein the cutting tool (24) is located beside the columnar workpiece (13). The friction test device can achieve a long testing duration while ensuring sufficient contact pressure.\nA: A computer numerical control woodworking machine integrated with turning and engraving functions comprises a base (2), a cross beam (1), a vertical drive mechanism, a tool bit device, a cross drive mechanism, a longitudinal drive mechanism, and a workholding drive mechanism. The cross beam (1) is mounted at an upper portion of the base (2). The vertical drive mechanism is mounted on the cross beam (1), and comprises a first drive motor (6), a first motor securing base (7), a first slide block (5), a vertical guide-way (8), a first threaded rod (10), a first connection block (11), a vertical guide-way mounting plate (3), and a vertical carriage plate (4). The tool bit device comprises a tool bit rack (30), a turning tool rack (42), an engraving tool bit (41), a turning tool (43), a turning tool-securing plate (44), an adjusting screw (45), and a motor (35). The longitudinal drive mechanism comprises a longitudinal work platform (16), a longitudinal guide-way (23), a fourth slide block (22), a third drive motor (24), a third motor securing lower base (25), a third threaded rod (21), a third connection block (20), and a third bearing support block (19). The cross drive mechanism comprises a cross work platform (18), a cross guide-way (15), a third slide block (14), a second drive motor (26), a second motor securing base (27), a second threaded rod (17), a second connection block (13), and a second bearing support block (12).\nB: A multi-purpose precision machine tool, having main structures comprising a machine tool body (1), and a first workpiece fixing mechanism, a second workpiece fixing mechanism, and a tool mechanism provided on the machine tool body (1). The first workpiece fixing mechanism and the second workpeice fixing mechanism respectively comprise an internal expanding clamp (8) and a soft-jaw chuck (9) for clamping a workpiece (14), so as to not only drive the workpiece (14) to rotate but also drive the workpiece (14) to perform horizontal and vertical linear displacement. Therefore, the internal expanding clamp (8) can first clamp the workpiece (14) to machine one end of the workpiece (14), and the then the soft-jaw chuck (9) clamps the other end of the workpiece (14) to machine the other end of the workpiece (14). Therefore, the workpiece (14) can be machined without being detached, and the machine tool features a simple structure and has high workpiece clamping conversion and machining efficiency.\nC: A multifunctional pin-on-disk abrasion simulation experiment device, belonging to the technical field of friction and abrasion testing. The device comprises a frame, which is sequentially provided, from top to bottom, with a lead-screw slider lifting and loading system, a plurality of opposite grinding assemblies (5), a temperature chamber assembly (4) and a main shaft rotation system, with the plurality of opposite grinding assemblies (5) being arranged in the temperature chamber assembly (4). The device can carry out multiple opposite grinding experiments without the experiments affecting each other, and can also simultaneously carry out multiple opposite grinding experiments under the conditions of different rotation speeds, different contact pressures and the same temperature, without the experiments affecting each other, thus not only reducing experiment error, but also greatly improving the experiment efficiency. In the device, the temperature in the chamber of the temperature chamber assembly (4) can be changed by a user; the lead-screw slider lifting and loading system can separately and independently start the different opposite grinding assemblies (5) and can separately apply vertical loads to the different opposite grinding assemblies (5); and the main shaft rotation system can drive a friction disk to rotate and provide a corresponding torque.\nD: Provided is a dual-spindle machine tool, comprising a machine base (30), and a machine tool cutting part (01) and machine tool spindle mechanism (02) arranged on the machine base (30); the machine cutting part (01) comprises a support frame (011), a translational motion frame (012), a lifting/lowering base (013), and a cutting tool apparatus (014); the support frame (011) is mounted on the base (30); the translational motion frame (012) is mounted on the support frame (011) by means of a translational motion drive apparatus; the lifting/lowering base (013) is mounted on the translational motion frame (012) by means of a lifting/lowering drive apparatus; the cutting tool apparatus (014) is mounted on the lifting/lowering base (013); the cutting tool apparatus (014) is equipped with a cutting tool for cutting a product; the number of machine tool spindle mechanisms (02) is two, and they are arranged side-by-side on the machine base (30); driven by the translational motion drive apparatus, the cutting tool can move between the two machine tool spindle mechanisms. When the cutting tool is machining the product on one of the two spindle mechanisms, a worker can unload the finished product on another spindle mechanism, then clamp the product to be processed on the spindle mechanism. Thus the processing efficiency of the machine tool can be improved.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn accelerometer and environmental sensor integrated chip, comprising a support part (2) and a mass block (4) connected to the support part (2) by means of a cantilever beam (3); a first pressure-sensitive resistor (6) is arranged on the cantilever beam (3); the first pressure-sensitive resistor (6) is configured to detect the degree of deformation of the cantilever beam (3) when the mass block (4) is affected by acceleration; the mass block (4) is provided with a recessed groove (13); also comprising a sensitive film (5) arranged on the mass block (4) and covering the recessed groove (13); a second pressure-sensitive resistor (7) is arranged on the sensitive film (5); and the second pressure-sensitive resistor (7) is configured to detect the degree to which the sensitive film (5) is deformed by environmental change. The accelerometer and the environment sensor are integrated into the same chip, greatly reducing the space occupied by the chip and being conducive to the development of miniaturisation of electronic devices.\nA: A biomimetic microcantilever structure (1) and manufacturing method therefor, and a piezoresistive sensor. The biomimetic microcantilever structure (1) comprises: a silicon substrate (2) in the form of a cantilever structure, biomimetic slit groups (3) provided in the silicon substrate (2), and an on-cantilever varistor (4), a substrate varistor (5), and an electrode lead (6) provided on the upper surface of the silicon substrate (2). The two biomimetic slit groups (3) are symmetrically arranged on the left and right sides of the central axis of the silicon substrate (2). The biomimetic slit group (3) comprises at least one biomimetic slit (7). The biomimetic slit (7) is formed by mimicing the slit sense organs of scorpions. The on-cantilever varistor (4) and the substrate varistor (5) constitute a Wheatstone bridge by means of the electrode lead (6). The biomimetic microcantilever structure (1) capable of hypersensitively sensing microinformation is designed on the basis of the stress amplification principle of slit sense organs at tarsal joints of Heterometrus petersii by using micro-nano manufacturing technology, and has the characteristics of high sensitivity, high detection precision, and easy use in mass production.\nB: A display substrate integrated in a display panel, comprising a base substrate (10) and a pressure sensing structure (2) that is located on the base substrate (10) and used for testing an environment pressure. The pressure sensing structure (2) comprises: a first pressure-sensitive electrode (201) and a second pressure-sensitive electrode (202) that are disposed opposite to each other, and multiple insulating supports (203) that are disposed between the first pressure-sensitive electrode (201) and the second pressure-sensitive electrode (202) at intervals. The first pressure-sensitive electrode (201) is in contact with the base substrate (10). The display substrate can integrate an environment pressure testing function therein, and is easy to carry when people go out. Also disclosed are a display apparatus, a pressure detection system and a detection method thereof.\nC: A sensor and an electronic device. The sensor comprises a substrate and a sensitive membrane (1) connected on the substrate, the sensitive membrane (1) is suspended on the substrate and is configured to deform in a direction perpendicular to the membrane surface thereof when subjected to an external force, and a magnetoresistor is further provided on the sensitive membrane (1); the sensor further comprises a fixed part (5) connected on the substrate, and the fixed part (5) is insensitive to the external force; the fixed part (5) and the sensitive membrane (1) are located in a same plane, a wire (6) is provided on the fixed part (5) at a position adjacent to the magnetoresistor, and the wire (6) is configured to transmit a current to generate a magnetic field induced by the magnetoresistor. The sensitive membrane (1) and the fixed part (5) are located in the same plane, and thus, the problem such as alignment during manufacturing of a conventional sensor structure can be avoided, thereby improving the manufacturing accuracy of a detection structure and ensuring the performance of a sensor.\nD: An acceleration sensor (100), comprising: a flexible substrate (11); a deformation layer (12), the deformation layer (12) being disposed on the flexible substrate (11), the deformation layer (12) being capable of conducting electricity, and when the deformation layer (12) deforms under the action of an external force, the resistance of the deformation layer (12) changing with the amount of deformation of the deformation layer (12); and a detector (13) electrically connected to the deformation layer (12), and used for obtaining an acceleration according to the change value of the resistance of the deformation layer (12). The acceleration sensor (100) has simple processing technology and low costs, and can be used for the surface of a curved object.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA surface-mounted piezoelectric acceleration sensor, comprising a housing (20), a PCB board (10) fixed to the top of the housing (20), and a piezoelectric ceramic (30) sleeved in the housing (20). A conditioning circuit is provided on the inner side of the PCB board (10); attachment pads (14) are provided on the outer side of the PCB board (10); the piezoelectric ceramic (30) is sleeved in the housing (20); an electrode on one side of the piezoelectric ceramic (30) is connected to a signal pad (12) on the PCB board (10); an electrode on the other side of the piezoelectric ceramic (30) is connected to a ground pad (11) on the PCB board (10). The conditioning circuit is disposed in a shielding cover formed by the PCB board (10) and the housing (20) to ensure that a signal is not interfered, so that the test precision of the whole product is high. Moreover, a low-resistance circuit is disposed outside the sensor, the sensor itself forms a surface-mounted component, and the sensor is freely assembled by a user, thereby fully reducing the space occupied by the sensor itself, and lowering the production cost of the product. The application is more flexible, and the sensor is suitable for various test environments.\nA: A charge output element (1), comprising: a support (10) comprising a connecting component (11); a piezoelectric element (20), which is an annular structural body and is sleeved on the connecting component (11), wherein the piezoelectric element (20) is provided with a first deformation groove (23), and the first deformation groove (23) passes through a side wall of the piezoelectric element (20) to disconnect the piezoelectric element (20) in a circumferential direction; and a mass block (30), which is an annular structural body and is sleeved on the piezoelectric element (20), wherein the piezoelectric element (20) is in interference fit with the connecting component (11) and the mass block (30), and the piezoelectric element (20), the mass block (30) and the support (10) of the charge output element (1) are in rigid contact with each other, so that the overall rigidity of the charge output element (1) can be effectively improved, thus improving the frequency response characteristics and resonance of the piezoelectric acceleration sensor. Moreover, the first deformation groove (23) provided on the piezoelectric element (20) causes the piezoelectric element (20) to deform to a greater extent so as to facilitate the assembly of the mass block (30), the piezoelectric element (20) and the support (10), thereby improving the assembly efficiency of the charge output element (1). Further disclosed are a method for assembling the charge output element (1) and a piezoelectric acceleration sensor.\nB: A household flower planting monitoring instrument having a photographing function, comprising a housing (10) provided in a sealed manner. A PCB is provided in the housing (10); the PCB is provided with a temperature sensor (44), a photosensitive sensor (41), a soil nutrient measuring instrument (42) used for measuring soil nutrients, and a humidity sensor (43) used for measuring a soil humidity value; the PCB is further provided with a data processor (30) connected to the temperature sensor (44), the photosensitive sensor (41), the soil nutrient measuring instrument (42), and the humidity sensor (43), and a wireless transceiver module (50) connected to the data processor (30); the PCB is provided with measuring electrodes (20) which can be conveniently inserted into soil, the measuring electrodes (20) extend out of the housing (10), and positions where the measuring electrodes (20) and the housing (10) are connected are sealed; the PCB is further connected to a photographing module (60), and the photographing module (60) is connected onto the housing (10) by means of a scalable and flexible connecting rod (61). The monitoring instrument can achieve immediate and real-time monitoring to the flower growth condition by means of the photographing module (60), and can provide a user with optimal planting suggestions by means of a household host and a user terminal.\nC: A double-board electric welding machine comprises a machine casing (10). A first PCB board (20) and a second PCB board (30) are provided in the machine casing (10), the first PCB board (20) and the second PCB board (30) are fixed together by using a threaded rod (10), and the first PCB board (20) and the second PCB board (30) are arranged in parallel and are parallel to the bottom of the machine casing (10). The second PCB board (30) is fixed to the machine casing (10) by using a mounting bracket (90), and electronic parts and components electrically connected to an interface and a control panel of the electric welding machine are mounted on the first PCB board (20) and the second PCB board (30). The internal circuit arrangement enables the structure of the electric welding machine to be more compact. In addition, when parts and components on one PCB board are damaged, only the PCB board is replaced, thereby reducing maintenance costs of the electric welding machine.\nD: A fitness display apparatus and a fitness counterweight apparatus. The fitness display apparatus comprises an outer housing provided on guide rails (1) and capable of moving under the limit of the guide rails (1); a display screen (14) is provided on the outer housing, the outer housing is internally provided with a generator (11), a PCB (12), a tension sensor (9) and a rechargeable battery (10), the PCB (12) is provided with a charging circuit and a control chip; the generator (11) is connected to the rechargeable battery (10) by means of the charging circuit; a rotor of the generator (11) is in contact with the guide rails (1), and when the outer housing moves, the rotor of the generator (11) rotates; the rechargeable battery (10) is electrically connected to the PCB (12); the tension sensor (9) and the display screen (14) are respectively electrically connected to the PCB (12); and the tension sensor (9) is provided between an external device and a load bearing rod (3). By providing a display unit, exercise data can be intuitively displayed; obtained data can be sent to a mobile device or a cloud by means of a wireless module, and an exercise process is accurately described in combination with a suitable APP and other software, laying a foundation for datamation of training processes and training effects.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA shielding device used for wireless testing. The shielding device comprises: a guide rod (10), side walls (12), a directional antenna (11), and a wave absorbing layer (13), wherein the directional antenna (11) is fixed to the guide rod (10), the wave absorbing layer (13) is provided on a bottom surface of the shielding device, the side walls (12) are arranged around the shielding device, and the guide rod (10) is fitted and fixed with a top part of the side walls (12); a coverage area of the wave absorbing layer (13) is larger than a main lobe radiation area of the directional antenna (11) at the bottom surface of the shielding device. The shielding device has the advantage of having a low cost.\nA: A microwave shielding door (10) and a microwave steam oven (100) comprising same. The microwave shielding door (10) comprises: a first shielding plate (11), the region of the first shielding plate (11) facing a cavity body of a microwave cooking cavity (101) forming a first shielding region; a second shielding plate (12), the first shielding plate (11) being connected to a first surface (12-1) of the second shielding plate (12), and the area of the second shielding plate (12) being larger than that of the first shielding plate (11); a door body (13), a second surface (12-2) of the second shielding plate (12) being mounted on the door body (13); and a sealing ring (14), the sealing ring (14) being spaced apart from the first shielding plate (11), and the region, facing the cavity body of the microwave cooking cavity (101), of the second shielding plate (12) on the inner side of the sealing ring (14) forming a second shielding region. The microwave shielding door (10) can effectively shield microwaves leaking out of a microwave device.\nB: Provided are a temperature measuring component (10) for a microwave equipment (1) and microwave equipment (1) having the same. The temperature measuring component (10) comprises: a conducting wire (11); a first housing (12); a second housing (13); and a shielding layer (14) for shielding from an interference signal. The first housing (12) has a first accommodation chamber (121) provided with a temperature sensing member (122) therein. A first end (11a) of the conducting wire (11) extends to the first accommodation chamber (121) to connect with the temperature sensing member (122). The second housing (13) has a second accommodation chamber (131), and the conducting wire (11) is adapted to electrically connect with the second housing (13). At least a portion of the conducting wire (11) located between the first housing (12) and the second housing (13) is covered by the shielding layer (14). The temperature measuring component (10) for the microwave equipment (1) and the microwave equipment (1) having the same have simple structures and can detect food temperature conveniently.\nC: A thin-film antenna, a display module, and a display apparatus. The thin-film antenna comprises a first region (AA) and a second region (BB). The thin-film antenna comprises: an antenna function layer (12), a first film layer (13), and a lead layer (14) that are stacked; the antenna function layer (12) comprises an antenna coil; the antenna coil is located in the first region (AA); the lead layer (14) comprises a lead (141) and a terminal (142) connected to the lead (141); the terminal (142) is located in the second region (BB); the lead (141) is connected to the antenna coil by means of a via hole provided on the first film layer (13). The thin-film antenna provided in the present embodiment can be attached to the back of a display panel, and there is no need to provide, between the antenna and the display panel, components such as a middle frame for shielding a signal. Therefore, an antenna function can be used directly on a screen side. For a terminal devices having a screen folded outside, NFC identification, etc. can be performed directly in a folded state, thereby improving the convenience of use.\nD: A support platform and an antenna measurement isolation room, solving the technical problem that, with an upwardly-spiked wave absorbing material (81) being densely arranged on the ground, the wave absorbing material (81) is prone to be stepped on by a testing staff member. The technical solution primarily comprises: a test table (11), several middle plates (12) slidably stacked on the test table (11), and a support plate (13) sliding on the middle plate (12) at the top position. The test table (11), the middle plates (12), and the support plate (13) are provided therebetween with sliding components used for restricting vertical sliding relative to each other. The sliding components comprise barrier components restricting the test table (11), the middle plates (12), and the support plate (13) from slipping off each other. Mounted on the test table (11) is a power component for pushing the support plate (13) to slide and thereby implementing stepped telescoping of the support plate (13) and the middle plates (12), thus achieving the effect of reducing damages to the wave absorbing material (81) by means of telescopingly transporting outdoors an electronic device on the test table (11).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA receiving structure of an automatic signal docking circuit, and an automatic signal docking device. When a male end of the automatic signal docking device approaches a female end of the automatic signal docking device, a plurality of attracting components on a first receiving plate and a plurality of attracting components on a second receiving plate of the receiving structure are attracted and close to each other, such that guiding components on the first receiving plate and guiding components on the second receiving plate are coupled to each other.\nA: An array substrate comprises a semiconductor active layer (11), a gate insulation layer (12), a first metal layer (13), an interlayer dielectric layer (14), and a second metal layer (15) arranged in sequence. The array substrate is provided with a row drive unit therein. The row drive unit comprises a capacitor structure (20), and the capacitor structure (20) comprises a first capacitor plate (21) formed in the semiconductor active layer (11), a second capacitor plate (22) formed in the first metal layer (13), and a third capacitor plate (23) formed in the second metal layer (15). Projections of the first capacitor plate (21) and the second capacitor plate (22) on a base substrate (1) at least partially overlap. Projections of the second capacitor plate (22) and the third capacitor plate (23) on the base substrate (1) at least partially overlap. The third capacitor plate (23) is electrically connected to the first capacitor plate (21) by means of a first via hole (31). The invention reduces the surface area occupied by the row drive unit on the array substrate, thereby facilitating a slim bezel design of a display device.\nB: Provided is a dispenser (100) for an electric washing appliance (1000). The dispenser (100) comprises a first receiving cavity body (101), a first component (103), a second receiving cavity body (102), a second component (104), a linkage structure (11), and a driving device (12), wherein the first receiving cavity body (101) is provided with a first receiving cavity (1011) and a first opening (1012), and the first opening (1012) is in communication with the first receiving cavity (1011); the first component (103) is movably arranged at the first opening (1012) and is used for opening and closing the first opening (1012); the second receiving cavity body (102) is provided with a second receiving cavity (1021) and a second opening (1022), and the second opening (1022) is in communication with the second receiving cavity (1021); the second component (104) is movably arranged at the second opening (1022) and is used for opening and closing the second opening (1022); the linkage structure (11) is connected to the first component (103) and the second component (104); and the driving device (12) is connected to the linkage structure (11), and the driving device (12) is used for driving, when the first component (103) closes the first opening (1012) and the second component (104) closes the second opening (1022), the linkage structure (11) to move so as to enable the first component (103) to open the first opening (1012) and the second component (104) to open the second opening (1022) at the same time or enable the first component (103) to open the first opening (1012) and the second component (104) to open the second opening (1022) at different times.\nC: A signal mating device (30), the signal mating device (30) being used for mating a signal source (40) with an electronic product (101) to be tested. The signal mating device (30) comprises a frame (31), a first driving member (32), a track (33), a first mating end (34) and a second mating end (35), the first mating end (34) is connected to the signal source (40) and is provided corresponding to a inspection station (12), the second mating end (35) is provided on the track (33) and can move relative to the frame (31) along the track (33), and the first driving member (32) drives the second mating end (35) to move on the track (33); the signal mating device (30) further comprises a mating actuation mechanism (36) connected to the frame (31), the first mating end (34) being provided on the mating actuation mechanism (36), and being able to, under the driving of the mating actuation mechanism (36), be mated with the second mating end (35) which moves to the inspection station (12).\nD: A sensor assembly (600), comprising a housing (81) and a circuit board assembly (82). The housing (81) comprises a first accommodation cavity (813), a second accommodation cavity (814), a first connection portion (815), a second connection portion (818) and a third accommodation cavity (816). The first connection portion (815) is connected to the first accommodation cavity (813) and one end of the third accommodation cavity (816), and the second connection portion (818) is connected to the second accommodation cavity (814) and the other end of the third accommodation cavity (816). The circuit board assembly (82) is accommodated within the first accommodation cavity (813), the second accommodation cavity (814), the first connection portion (815), the second connection portion (818) and the third accommodation cavity (816). The width of the first connection portion (815) and the second connection portion (818) is less than the width of the first accommodation cavity (813), the second accommodation cavity (814) and the third accommodation cavity (816). The first connection portion (815) and the second connection portion (818) are each provided with a buffer groove (817) along the width direction. The sensor assembly (600) can reduce motion artifacts when the user is moving, reduce the influence of the motion artifacts on the monitoring, and improve the accuracy of physiological signal monitoring.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to a battery management circuit, comprising a signal extraction unit, a clock capture unit, a voltage-controlled oscillator, and a voltage sampling unit. The signal extraction unit is suitable for extracting a synchronous pulse signal from a communication bus connected to the battery management circuit. The clock capture unit is connected to the signal extraction unit, and is suitable for generating a clock signal according to the synchronous pulse signal. The voltage-controlled oscillator is suitable for transforming a battery unit voltage into a voltage frequency signal. The voltage sampling unit is suitable for sampling the voltage frequency signal according to the clock signal to obtain a sampling voltage of the battery unit voltage.\nA: A battery management system awakening method and an awakening system (100). The method comprises: converting, by means of a conversion unit (130), a low-voltage power supply signal detected by a low-voltage input port (120) into a high-voltage awakening signal, wherein a high-voltage control module (140) receives, under control of the high-voltage awakening signal, an operation voltage provided by a power battery pack (110); controlling, by means of the high-voltage control module (140), a high-voltage transmission module (150) to turn on, providing, via the high-voltage transmission module (150) that is turned on, the operation voltage to a synchronization rectification module (160), so as to convert a high-voltage electric energy provided by the power battery pack (110) into a low-voltage electric energy; and transmitting, under control of the synchronization rectification module (160), the low-voltage electric energy to a low-voltage controller (170), and awakening, by means of the low-voltage controller (170), a battery management system. The awakening method enables stable power supply of a low-voltage side from the high-voltage battery pack (110), thereby reducing degradation of a lead acid battery caused by the entire vehicle.\nB: Provided are a shift register unit and gate driving circuit for suppressing an output error caused by a threshold voltage drift and an interval existing when pulling an output terminal down, improving the stability of a shift register unit. The shift register unit comprises an input module, a first output module, a pull-down drive module, a pull-down module, and a first output discharge module, the pull-down drive module being connected to a first clock signal input terminal and a second clock signal input terminal, and providing the first clock signal to a first pull-down node in response to a first clock signal, providing the second clock signal to a second pull-down node in response to a second clock signal; providing a first low-voltage signal to the first pull-down node and the second pull-down node in response to the voltage signal of a pull-up node; providing the first low-voltage signal to the second pull-down node in response to the voltage signal of the first pull-down node; and providing the first low-voltage signal to the first pull-down node in response to the voltage signal of the second pull-down node.\nC: An RRAM voltage generation system comprises a charge pump (12), a square-wave oscillator (13), a linear voltage regulator (14), a power-on control circuit (15), and a voltage and current reference source (11). The charge pump (12) is used for raising a voltage of an external power source and providing a power source to another sub-circuit. The square-wave oscillator (13) is used for providing a clock signal, and an output end of the square-wave oscillator (13) is connected to a clock signal input end of the charge pump (12). The linear voltage regulator (14) is used for providing a driving voltage for the operation of a storage unit, and an output end of the linear voltage regulator (14) is sequentially connected to a row and column decoder (2) and a storage unit array (3). The linear voltage regulator (14) is also connected to an external power source VCC and a charge pump (12) output power source VPP. The power-on control circuit (15) is used for providing a power-on reset signal to a system, and also controlling the sequential start of the charge pump (12), the square-wave oscillator (13) and the linear voltage regulator (14). The voltage and current reference source (11) is used for providing a reference voltage and a reference current to the charge pump (12), the square-wave oscillator (13), the linear voltage regulator (14) and the power-on control circuit (15). Both an external power source and the charge pump (12) of a double-branch structure with good technological compatibility are used to separately supply power to the linear voltage regulator (14), and multiple bytes are supported.\nD: Provided are a display device and a control method therefor. The display device comprises a source module and an array module. The source module comprises: a receive unit, for receiving an image signal and extracting a control signal and a pixel signal from the image signal; a clock signal generating unit for generating a plurality of clock signals, wherein all the clock signals have a same cycle and high level periods of the plurality of clock signals do not coincide with each other; a level boost unit, for boosting the voltage of the extracted control signal and pixel signal to an analog working voltage; and a digital-to-analog conversion unit, for converting the voltage of the boosted pixel signal into a grayscale voltage. The array module comprises a shift register for outputting the pixel signal with the grayscale voltage on the basis of the boosted control signal and the plurality of generated clock signals.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for using multiple feature values of a high-frequency satellite-ground link to determine whether it is sunny or rainy at a given time, comprising: removing, by filtering, a rapid signal change caused by noise of a satellite-ground link and scintillation, then extracting multiple feature values including a standard deviation, a trend, a maximum value, a minimum value, an average value, a skewness, a kurtosis, and information entropy, and selecting the optimal time window by means of adjustment, and finally using a classification algorithm to determine whether it is sunny or rainy at a given time. The present invention can accurately distinguish a sunny period from a rainy period by using a high-frequency satellite-ground link signal, and can monitor the large-range distribution of sunny days and rainy days in real time, having a great significance in terms of further improving the rain detection accuracy of a satellite-ground link, and improving the levels of monitoring of urban water logging and flood prevention and early warning.\nA: A rapid-converging ultrahigh-frequency microwave rainfall data discretization method. The method comprises: discretizing each link in an ultrahigh-frequency microwave network into a plurality of segments of short links; taking the central point of each short link as a virtual station, and determining a central station and a side station in each link; and performing estimation for a virtual station on each link, performing calculation, by means of IDW, by using rainfall intensity estimators of all central stations of other links except the link, correcting a calculation result, and performing successive iteration until an iteration termination condition is met, so as to complete discretization. The method is more scientific and realizes a higher convergence speed. Aiming at the features of an ultrahigh-frequency microwave network, only a central station participates in optimization calculations, so that errors introduced to a model after station discretization are greatly reduced. Accordingly, during a rainfall data processing process, only the central station is used, such that the arithmetic speed is not limited by the number of virtual stations.\nB: A method for automatically detecting a free vibration response data segment of a high-speed rail bridge when a train passes, comprising: first, determining, on the basis of the maximum value of a moment at where the absolute maximum value of a vibration response vector of each measuring point is found, a test response to be decomposed; then, utilizing iterative variational mode decomposition to extract a single-frequency modal response from the test response, and utilizing the Hilbert transform to fit an envelope amplitude of the modal response; and finally, marking a vibration characteristic of each moment as an attenuated vibration or a non-attenuated vibration on the basis of the characteristic of amplitude attenuation of a single-frequency free vibration, and making the longest structural response data segment complying with an attenuated vibration requirement as a detected free vibration response applicable in modal identification. The method implements the effective detection of a free vibration data segment without requiring human participation and carries great significance with respect to real-time accurate modal analysis of high-speed rail bridges.\nC: A transformer monitoring apparatus based on non-electric-quantity comprehensive characteristic information. The transformer monitoring apparatus comprises: a transient oil pressure characteristic quantity measurement module, a transient oil flow characteristic quantity measurement module, a transient acceleration characteristic quantity measurement module, a signal conditioning and collection module and a digital processing and analysis module, wherein the transient oil pressure characteristic quantity measurement module, the transient oil flow characteristic quantity measurement module and the transient acceleration characteristic quantity measurement module are all connected to the signal conditioning and collection module, and the signal conditioning and collection module is connected to the digital processing and analysis module. Further disclosed is a transformer monitoring method based on non electrical quantity comprehensive characteristic information. According to the apparatus and method, by means of comprehensively using a plurality of pieces of non-electric-quantity transient characteristic information inside a transformer, an action oil pressure value, an action oil flow value and an action acceleration value of a running state of the transformer are calculated, and by means of comparing with a preset non-electric-quantity start threshold, an alarm threshold and an early warning threshold, the real-time monitoring and reliability evaluation of each non-electric-quantity safety level inside the transformer are realized. The apparatus is independent of a power grid, and has the advantages of a simple structure, easy implementation, being reliable and accurate, etc.\nD: Disclosed is a method for processing satellite position velocity data based on a satellite earth station, comprising the following steps: S1) obtaining satellite GNSS data at a certain moment; S2) obtaining ephemeris data, and calculating the position velocity of a satellite at the moment; S3) calculating a position velocity deviation value of the calculated position velocity and the position velocity measured by the GNSS under a geometric inertial coordinate system; S4), training based on a neural network, and constructing a mapping relationship of "satellite position velocity-position velocity deviation value"; S5) compensating for the ephemeris-calculated position velocity of the satellite with the position velocity deviation value output by the neural network in regions that the mapping relation relationship is already constructed; and S6) converting the output position velocity deviation value to a geometric fixed coordinate system with the geometric inertial coordinate system. According to the present invention, precise position and velocity data of the satellite can be obtained. In addition, when beacon signals or received signals are absent, a Doppler shift value is estimated in real time, so that Doppler shift of uplink signals is compensated in real time.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an air pollutant forecasting method and apparatus, and an electronic device, which relate to the technical field of air quality forecasting. The method comprises: acquiring a plurality of current forecasting results generated by a plurality of forecasting modes (S110), wherein each forecasting mode generates one current forecasting result; determining a localization parameter corresponding to each forecasting mode to obtain a plurality of localization parameters (S120); according to the plurality of localization parameters, optimizing an integrated forecasting model (S130); and inputting the plurality of current forecasting results into the optimized integrated forecasting model, so as to obtain an aggregation result (S140). The method can improve the accuracy rate of the aggregation result.\nA: A big data-based hydrologic forecasting method, comprising: step 1, dividing a whole drainage basin into basic calculation units according to a range; step 2, performing runoff calculation on each calculation unit; step 3, performing confluence calculation on each calculation unit according to a runoff calculation result; step 4, performing river network evolution superposition calculation on the flow output process of each calculation unit to finally obtain the outlet flow of the section of the whole drainage basin; and performing hydrologic forecasting according to the outlet flow of the section of the drainage basin. The present invention solves the problem in the prior art that a forecasting result calculated by a Xinanjiang model is poor in accuracy due to the fact that the parameters of the Xinanjiang model mainly used for hydrologic forecasting cannot be accurately calibrated, and the problem of being difficult to carry out vigorous technical popularization and application to a region having no hydrologic data due to the difficulty of parameter calibration and the limitation of an application region.\nB: A model structure, parameter and variable-order unknown forecasting model construction method, apparatus and device for a complex industrial system, and a storage medium. The forecasting model construction method for a complex industrial system comprises: establishing a dynamic model for an industrial system, and determining an input variable and an output variable of the dynamic model, the output variable being a forecasted variable (S1); and establishing a forecasting model by using an LSTM, taking the input variable of the dynamic model as a single neuron input of the LSTM, taking output data of the dynamic model as label data, representing the order of unknown variables of the dynamic model using the number of neurons of the LSTM, and determining, according to the error between the label data and the output from the forecasting model, a model parameter of the LSTM by means of a training algorithm (S2). With the aim of solving the problem of it being difficult to establish a dynamic mathematical model for a complex industrial system, a dynamic system modeling method is combined with a deep learning technique of a complete information space to realize the construction of a forecasting model for a complex industrial dynamic system.\nC: A method and a device for processing meteorological element data of a numerical weather prediction. Said method comprises: acquiring first meteorological element data predicted by a numerical weather prediction at a meteorological station (S102); acquiring second meteorological element data obtained by observation at the meteorological station (S104); selecting third meteorological element data corresponding to time interval coincidence region of the first meteorological element data and the second meteorological element data, and obtaining a first error correction coefficient according to the third meteorological element data (S106); according to the first error correction coefficient, determining, by means of an error conversion model, a second error correction coefficient at a prediction period of the current day (S108); and revising, according to the second error correction coefficient, the first meteorological element data, so as to obtain revised first meteorological element data (S110).\nD: A cloud-edge collaborative forecasting system for aluminum oxide production indexes. According to the forecasting system, operations of forecasting algorithm selection, parameter configuration, and model training are performed on indexes and variables in an aluminum oxide production process by means of a cloud model training server, and evaluation and parameter correction are performed on a trained model to obtain an optimal training model. Moreover, aluminum oxide production process data is preprocessed on an edge-end aluminum oxide production index forecasting computer. The trained model parameters are imported from the cloud, so that aluminum oxide production indexes are forecasted for different production processes by using the trained forecasting model. Also provided is a cloud-edge collaborative forecasting method for the aluminum oxide production indexes. According to the system and the method, powerful computing resources are provided for aluminum oxide production index forecasting model training by means of the cloud server, and real-time and convenient aluminum oxide production index forecasting is provided by the edge-end computer.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn ultrasonic rainfall measurement system capable of automatic triggering and self-calibration. Said system comprises a rainfall monitoring module, a self-calibration and rainfall amount measurement module, a central processing module, a water level monitoring module and a drainage module, wherein the rainfall monitoring module is configured to monitor rainfall and send a rainfall signal; the self-calibration and rainfall amount measurement module is configured to emit, under the control of the central processing module, an ultrasonic signal and receive a signal, so as to obtain a calibration flight time, and is configured to emit, under the control of the central processing module, an ultrasonic signal to an accumulated water surface in a rainfall gauge and receive a measurement echo signal reflected by the accumulated water surface, so as to obtain a measurement flight time; the central processing module is configured to receive the rainfall signal, start the water level monitoring module and the self-calibration and rainfall amount measurement module, and is configured to calculate a rainfall amount value and output same in a fixed format; the water level monitoring module is configured to monitor the water level in the rainfall gauge and send a drainage signal; and the drainage module is configured to receive the drainage signal, and open a drainage valve to drain accumulated water in the rainfall gauge.\nA: A rainfall and water vapor comprehensive measurement device and method based on a dual-frequency dual-polarization microwave link, comprising a dual-frequency transmitter, a dual-frequency receiver, a dual-polarization antenna, a data collector, and a data processing terminal. The dual-frequency transmitter is combined with the dual-polarization antenna to alternately transmit microwave signals, the dual-frequency receiver is combined with the dual-polarization antenna to synchronously receive the microwave signals with corresponding frequencies and polarization modes, and the data collector collects the microwave signals in real time and transmits the microwave signals to the data processing terminal. The method comprises: first distinguishing sunny and rainy periods, performing water vapor information inversion in the sunny period, and performing rainfall information inversion in the rainy period; and calculating attenuation caused by rainfall or attenuation caused by water vapor by utilizing the determined reference level value, and determining rainfall intensity or water vapor density according to a corresponding empirical relationship. On the basis of double-frequency determination of the sunny and rainy days, water vapor density inversion is carried out in sunny days, and rainfall intensity inversion is carried out in rainy days. More importantly, the benefit of obtaining atmospheric information by the microwave link attenuation effect is fully exerted.\nB: A multi-focus ultrasonic wave generation device and generation method. The generation device comprises an ultrasonic excitation module (1), a control module (2), a monitoring module (3) and a feedback module (4). The ultrasonic excitation module (1) comprises a plurality of ultrasonic transducers (11); the control module (2) is used to respectively control, according to ultrasonic parameters of a plurality of objective targets, the plurality of ultrasonic transducers (11) to emit ultrasonic pulse signals to the plurality of objective targets; the monitoring module (3) is used to detect whether the ultrasonic pulse signals emitted by the ultrasonic transducers (11) are focused on the objective targets; the feedback module (4) is used to send a feedback signal to the control module (2) when the ultrasonic pulse signals emitted by the ultrasonic transducers (11) are not focused on the objective targets; and the control module (2) adjusts the positions of the ultrasonic transducers (11) according to the feedback signal, so that the ultrasonic pulse signals emitted by the ultrasonic transducers (11) are focused on the objective targets. The multi-focus ultrasonic wave generation device can dynamically and accurately stimulate a plurality of objective targets in real time as required.\nC: A polysomnography-based system and method for monitoring sleep of a pneumonia patient. The system comprises a central processing module. The central processing module is electrically connected, via wires, to a display module, a sleep monitoring module, a breathing monitoring module, a heart monitoring module, a body position monitoring module, a data transmission module, a power supply module, and a fault monitoring and alert module. The fault monitoring and alert module is electrically connected to the display module via a wire. The system and method achieve remote data transmission and allow various data to be processed and transmitted in a centralized manner, thus enabling technicians to keep a record or make a diagnosis conveniently, while enabling detection of faults in the system to reduce data measurement errors and ensure data accuracy.\nD: A preoperative beam dose measurement device, comprising a device casing (1), an optical conversion module (2), a reflection transmission module (3) and a signal detection module (4), wherein the optical conversion module (2), the reflection transmission module (3) and the signal detection module (4) are all mounted on the device casing (1); the optical conversion module (2) is used for receiving an externally transmitted beam signal, converting the beam signal into an optical signal and transmitting the optical signal to the reflection transmission module (3); the reflection transmission module (3) is used for transmitting the received optical signal to the signal detection module (4); and the signal detection module (4) is used for obtaining an optical signal distribution map according to the received optical signal and transmitting the optical signal distribution map to an image analysis system so as to obtain beam dose distribution by means of the image analysis system. The preoperative beam dose measurement device has a fast reaction speed, a high measurement precision and a small size. A computer can directly convert image data into dose data in real time due to advanced calibration of the preoperative beam dose measurement device.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to the field of precipitation forecast, and specifically relates to a multi-mode integrated precipitation forecast method and apparatus. In the method and the apparatus, the forecast performance of each forecast mode is evaluated, and the forecast effects, at different precipitation intensities, of each mode, and a traditional integrated forecast effect are analyzed; and then, an integration method is improved, namely, a sliding-window method is used to screen out a forecast mode having, within a preset time duration, the best forecast effect at a certain precipitation intensity, the various forecast modes are integrated to generate an integrated forecast mode, and integrated forecast is calculated using probability match set average optimization. In comparison with the differences of forecast effects, at each precipitation intensity, of traditional integrated forecast, a precipitation value, corresponding to an intensity using a mode having the effect which is better than that of the traditional integrated forecast, is converted and provided, intensity by intensity, for the integrated forecast, such that the phenomenon of the forecast effects, at certain intensities, of the traditional integrated forecast being poor can be alleviated, thereby forming optimal integrated forecast that integrates each individual optimal forecast mode.\nA: A tropical cyclone intensity forecast information generation method and system. The method comprises: obtaining data to be processed according to different data dimensions (S101); preprocessing said data to obtain initial data (S102); and predicting the initial data by using a preset forecast model to obtain tropical cyclone intensity forecast information (S103). Because the initial data comprises a climate persistence characteristic factor, an environment characteristic factor, and a brainstorming characteristic factor, factors affecting tropical cyclones can be fully utilized to predict the tropical cyclone intensity forecast information in combination with the preset forecast model, so that prediction processing is more intelligent and objective, a tropical cyclone forecast system is perfected, and the forecast accuracy is improved.\nB: An adaptive deep learning-based intelligent forecasting method，apparatus and device for a complex industrial system, and a storage medium. The intelligent forecasting method for a complex industrial system comprises: establishing a dynamic model of a complex industrial system (S1); establishing an offline deep-learning forecasting model by using the dynamic model (S2); establishing an online deep-learning forecasting model by using the offline deep-learning forecasting model (S3); establishing a deep-learning correction model by using the same structure as the online deep-learning forecasting model (S4); and correcting the online deep-learning forecasting model by using the deep-learning correction model (S5), wherein the online deep-learning forecasting model is used for forecasting the parameters of the complex industrial system in real time. To address the problem of a complex industrial system having low forecasting precision and poor real-time forecasting performance, an offline deep-learning forecasting model, an online deep-learning forecasting model, a deep-learning correction model and a self-correcting mechanism are established, thereby realizing accurate real-time forecasting of a complex industrial system.\nC: A real-time weather forecast system and forecast method by using a rain-sensing device (1). Rain falling information in a specific region is collected by using the rain-sensing device (1), and is sent to a system for analysis, so as to forecast the weather in real time. The system comprises the rain sensing device (1), a vehicle-mounted control module (2), a vehicle-mounted display screen (3), a system data center (4), and a mobile terminal device (5), a signal input end of the vehicle-mounted control module (2) being connected to a signal output end of the rain sensing device (1), a rain falling signal sensed by the rain sensing device (1) being sent to the vehicle-mounted control module (2), the vehicle-mounted control module (2) performing data communication with the system data center (4) through a communication channel, and the system data center (4) sending, through the communication channel, data information obtained through processing to the mobile terminal device (5) or the vehicle-mounted display screen (3) connected to the system, thereby timely monitoring and releasing the weather condition.\nD: The present invention relates to the technical field of aluminum oxide comprehensive production decision-making, and provides an aluminum oxide comprehensive production index decision-making method based on a multi-scale deep convolutional network. The method mainly consists of several sub-models: a multi-scale deep splicing convolutional network forecasting sub-model for reflecting the influence of a bottom-layer production process index on an aluminum oxide comprehensive production index; a fully-connected neural network forecasting sub-model for reflecting the influence of an aluminum oxide upper-layer scheduling index on the comprehensive aluminum oxide production index; a fully-connected neural network forecasting sub-model for reflecting the influence of the aluminum oxide comprehensive production index at the past moment on a current aluminum oxide comprehensive production index; and a multi-scale information neural network integration model for cooperatively optimizing sub-model parameters. According to the method, by means of the integrated forecasting model structure, the memory ability of a shallow network, and the feature extraction ability of a deep network, precise decision-making of aluminum oxide production indexes is realized.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA highway comprehensive meteorological detection device and a detection method therefor. The device comprises: a plurality of meteorological test units arranged on a highway, a remote computer and a cloud server, wherein a meteorological test unit is used for transmitting and calculating meteorological test data; the remote computer is used for sending a test instruction to the meteorological test units at the head and tail ends; and the cloud server is used for receiving the test data of the whole test link formed by the plurality of meteorological test units, and analyzing and calculating to obtain a final meteorological result. According to the device and method, the comprehensive meteorological condition along the highway can be quickly, comprehensively and accurately known, the quantitative test of meteorological weather such as rainfall, snowfall, fog or haze is realized, solving the defect that existing image identification software has difficulty in realizing quantitative identification. Data or commands can be transmitted to the other end of the link from one end of the link, only the wireless modem needs to be configured at the endpoint unit to be connected to the Internet of Things, test data uploading, test maintenance and other commands are issued, and the cost is relatively low.\nA: A meteorological information acquisition method based on a set-top box (20), and a system therefor. The meteorological information acquisition method based on the set-top box (20) comprises: a meteorological acquisition apparatus (10) acquiring meteorological data and transmitting same to the set-top box (20) (S100); the set-top box (20) packaging the meteorological data and then sending same to a meteorological observatory via a transmission channel (S200); and the set-top box (20) receiving weather prediction information fed back by the meteorological observatory, analysing same and then transmitting same to a television set (S300). According to the meteorological information acquisition method based on the set-top box (20) and the system therefor, the universality of users of the set-top box (20) is utilized, and meteorological data is obtained by means of the set-top box (20) and is uploaded to a meteorological observatory, thereby greatly enriching the number of samples of meteorological data, and providing a more accurate and precise data basis for weather prediction.\nB: A testing system and method for a thermoelectric module. The testing system comprises an electrical property testing unit (1), a thermal flux detecting unit and processor (3); the electrical property testing unit (1) is electrically connected with a thermoelectric module (2) operating in a power generation state, in order to test the output power P of the thermoelectric module (2) and the current I and internal resistance R of the thermoelectric module (2) operating under this output power; the thermal flux detecting unit comprises a heat flux sensor (5) arranged at a cold end of the thermoelectric module (2) and used for detecting the heat flux Qc1 of the cold end of the thermoelectric module (2); the processor (3) is electrically connected with the electrical property testing unit (1) to receive the information detected by the electrical property testing unit (1); the processor (3) is electrically connected with the heat flux detecting unit to receive the heat flux Qc1 of the cold end of the thermoelectric module (2) detected by the heat flux detecting unit, and the processor (3) is used for calculating the thermoelectric conversion efficiency of the thermoelectric module (2) according to the formula η=P/(Qc1+P-1/2I2R). By applying the testing system and the testing method, detection of the thermoelectric conversion efficiency of the thermoelectric module is realized.\nC: Disclosed is a biochemical analyzer and tester （1a）, comprising a main control unit (50a) and at least two mutually independent test units (100a). The main control unit (50a) respectively interconnects with the general power control switch, data output/input control system and test unit (100a), and each test unit (100a) comprises at least a sample delivery device (110a) and a light source device (111a). An analysis and test method using the analyzer and tester is also disclosed. The tester and test method can improve the test speed per unit time and provide an accurate test result, and the tester and test method can be used in detecting a series of physiological and biochemical indexes such as glucose, cholesterol, high density fatty acids, low density fatty acids, triglycerides, uric acid, bilirubin, total protein, haemoglobin and ketone bodies, etc.\nD: An electromagnetic compatibility test system and method for on-screen-display data. The electromagnetic compatibility test system for on-screen-display data comprises a test unit (0011), a data obtaining unit (0012), a shooting monitoring unit (0013), and an on-screen-display control unit (0014). The data obtaining unit (0012) is used for obtaining first test data generated by the test unit (0011), extracting the target data in the first test data to generate second test data, and sending the second test data to the on-screen-display control unit (0014). The shooting monitoring unit (0013) is used for performing video monitoring on a region to be tested, and sending obtained video data to the on-screen-display control unit (0014). The on-screen-display control unit (0014) is used for displaying received second test data and video data on a same screen. The test system can implement simultaneous display of test data and monitoring videos, and can provide great convenience for test personnel.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a pair of glasses (100), comprising a glasses frame (101) in which at least one lens (104) can be mounted, and a driving mechanism (107), wherein a lower portion of the glasses frame (101) is configured as a use position (D1) which places the at least one lens (104) in a use state; an upper portion of the glasses frame (101) is configured as a receiving position (D2) which places the at least one lens (101) in a received state; and the driving mechanism (107) is configured to drive the at least one lens (104) to move between the use position (D1) and the receiving position (D2).\nA: A pair of glasses and a decorative spectacle frame (10) and a lens holder (20) thereof. The glasses comprise: two lenses (40); a lens holder (20) which comprises two fixing frames (21) so as to respectively fix the two lenses (40) in place; at least one decorative spectacle frame (10) which comprises two lens rims (11); and a connecting device (30) which adheres the two fixing frames (21) of the lens holder (20) to the two lens rims (11) of the spectacle frame (10), so that the two lenses (40) are installed in the two lens rims (11) of the spectacle frame (10) so as to assemble at least one pair of glasses. The spectacle frame (10) is removably connected to the lens holder (20) and is replaceable, so that users can wear different types of glasses.\nB: Disclosed are a pair of three-dimensional glasses and a three-dimensional display system, which enable a wearer to obtain a better three-dimensional viewing effect and which reduce the feelings of dizziness and fatigue of the wearer. The pair of three-dimensional glasses comprises: a spectacle frame, the spectacle frame comprising two lens frames, and each lens frame being provided with a mating part; and two lenses which can be rotatably assembled on the mating parts of the two lens frames respectively, wherein at least one counterweight component which rotates the lenses to a balanced position is fixed to the edge of each lens. When the two lenses are located in the balanced position, the transmission axis of one lens is parallel to the polarization axis of a left-eye image of the three-dimensional display device, and the transmission axis of the other lens is parallel to the polarization axis of a right-eye image of the three-dimensional display device.\nC: A compound lens structure, a fingerprint recognition apparatus, and an electronic device. The fingerprint recognition apparatus comprises: a compound lens structure (300) that is arranged below a display screen (120) and comprises at least one lens element and a support (330), each lens element among the at least one lens element being provided with a curved surface at at least two positions, the curved surface at each position being used for forming at least one single lens, and the support (330) being used for supporting the at least one lens element; and a fingerprint recognition module (140) that comprises at least two sensing arrays, the at least two sensing arrays respectively being arranged below the at least two positions, the at least two sensing arrays respectively being used for detecting an optical signal passing through the lens formed on the at least two positions, and the optical signal being used for detecting fingerprint information in respect of a finger. The compound lens structure not only can effectively reduce optical parameter deviation among a plurality of lenses, but can also effectively reduce the size parameters of the compound lens, thereby satisfying the technical requirements in respect of dual sensing and even large-area fingerprint recognition.\nD: Provided are a multi-group lens, a photographing module, an electronic device and an assembly method. The multi-group lens comprises a plurality of lenses and at least two bearing components, i.e. a first bearing component and a second bearing component, at least one of the lenses being mounted to the first bearing component to form an independent first-group lens, at least one of the lenses being mounted to the second bearing component to form an independent second-group lens, and at least one of the lenses being a lens having a shortened edge.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a contact lens with an element protection function, the contact lens comprising a light transmissive body (1), a functional element (2) and a protective layer (3). The functional element (2) is arranged on the light transmissive body (1), and the protective layer (3) is arranged on the light transmissive body (1) and covers the functional element (2). The functional element (2) is enclosed by the light transmitting body (1) and the protection layer (3) and is isolated from the outside, and the protective layer (3) comprises a film forming polymer, a hydrophilic polymer and a solvent. The contact lens can achieve the effect of supporting and protecting the functional element by means of the design of the protective layer with particular compositions, and the protective layer can well apply to a manufacturing process for the contact lens.\nA: A composite electrochromic material, and a preparation method therefor and an application thereof, the material comprising a core layer, a skin layer having an electrochromic function, and a light-transmitting protective layer formed by a flexible polymer material, that are arranged in sequence. The material of the core layer comprises a fluid conductive mixture, and the conductive mixture comprises liquid metal and carboxylated carbon nanotubes. The preparation method comprises: carrying out spinning by co-extrusion using a three-channel nozzle to form hollow double-layer fibers each having a skin layer and a protective layer as well as a cavity, and injecting the conductive mixture into the cavities of the hollow double-layer fibers. The material has excellent deformation ability, stable and sensitive color changing function, and a controllable deformation degree. The material has a stable color changing function even in the case of severe deformation, has good fatigue resistance, and is suitable for the preparation of intelligent textiles.\nB: A self-luminous and easily identifiable cable and manufacturing method thereof. The cable comprises an electrical or optical cable core (1), and a protection layer (2) disposed outside the electrical or optical cable core (1). The protection layer (2) has a continuous spiral groove (3) on a surface thereof. A luminous string (41) is provided in the spiral groove (3) and does not protrude from the surface of the protection layer (2). A transparent light-emitting strip (5) is provided outside the protection layer (2) and surrounds the spiral groove (3) and the protection layer (2). A distance (L) between the centers of adjacent grooves (3) of the spiral groove (3) is 3-10 times the diameter of the electrical or optical cable. The electrical or optical cable core (1) comprises at least one power wire for power transmission, or at least one optical fiber for signal transmission, or at least one lead containing metals for signal transmission. The self-luminous and easily identifiable cable is simple in structure, easy to manufacture, low in cost, high in testing pass rate, convenient to achieve identification at night and under bright light condition, and having an aesthetic product appearance.\nC: Provided is a display device having fingerprint recognition function, including: a fingerprint recognition module for sensing a fingerprint; a substrate arranged above the fingerprint recognition module; a plurality of anodes arranged above the substrate; a plurality of light-emitting elements arranged above the plurality of anodes; a plurality of cathodes arranged above the plurality of light-emitting elements, each of the plurality of cathodes having a cylindrical shape; and a protective layer arranged between two adjacent cathodes, wherein the refractive index of each of the plurality of cathodes is smaller than the refractive index of the protective layer. Provided is also a manufacturing method of the display device having fingerprint recognition function.\nD: A structural color sun contact lens, comprises a lens (10): the center of the lens (10) is a pupil zone (101), and regions other than the pupil zone (101) are non-pupil zones (102); a photonic crystal structure (11) is at least designed in the pupil zone (101), and a photochromic material and/or a thermochromic material is at least distributed in the pupil zone (101), the photonic crystal structure (11) forming a structural color pattern in the sun contact lens. The structural color contact sun lens may enable consumers to experience life with more color, and may also effectively block visible light of a certain wavelength; the pupil zone (101) of the contact lens may promptly change color so as to reduce light passing through the lens when light is too strong or temperature is too high, thereby promptly and effectively protecting the eyes and preventing strong optical radiation, keeping the eyes safe.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA panoramic image photographing method, a panoramic image photographing system, an electronic device (1000) and a computer readable storage medium (400). The panoramic image photographing method supports the acquisition of panoramic images in two different dimensional directions.\nA: An image recognition method and system, an electronic device, and a storage medium. The method comprises: acquiring a panoramic image and a close-up image, the panoramic image comprising several objects, and the close-up image comprising a preset object; comparing the close-up image and the panoramic image to determine a corresponding area, that corresponds to the close-up image, in the panoramic image; performing image recognition on the close-up image to determine recognition information of the preset object; and on the basis of the recognition information and according to the correspondence between the corresponding area and the close-up image, determining a recognition result of an object in the corresponding area. A panoramic image and a close-up image of a specific object are separately acquired by means of a scenario, and a relationship between the close-up image and the panoramic image is established, to thereby recognize, by using the close-up image, a part that is not clearly recognized in the panoramic image, and thus solving the problem in which a long-distance object image captured by means of a panoramic camera in a large scene is blurry, which is unfavorable for image recognition and leads to a high recognition error rate.\nB: The present invention is applied to the field of image processing, and provides a horizontal calibration method and system for a panoramic image or video, and a portable terminal. The method comprises: receiving images or video frames of two circles after being imaged by two cameras having opposite photographing directions; obtaining a horizontal calibration matrix during photographing; and pasting, according to the horizontal calibration matrix, the images or video frames of the two circles to a left hemispherical curved surface and a right hemispherical curved surface of a spherical panoramic mathematical model in a UV mapping manner, respectively so that the panoramic images or video frames pasted in the spherical panoramic mathematical model are horizontal. According to the present invention, when an image or a video frame photographed by a panoramic camera is not horizontal, the panoramic image or the video frame pasted in a spherical panoramic mathematical model is still horizontal.\nC: A mobile robot positioning method, a storage medium and a computer device, comprising: acquiring a panorama image taken by a panorama camera, the panorama image comprising multiple image codes; acquiring image position information of the multiple image codes in the panorama image; determining image relative position information of each image code according to the image position information of each image code; acquiring relative angle information of each image code to the panorama camera; calculating position information and corresponding orientation information of the panorama camera according to the image relative position information and corresponding relative angle information of each image code; and acquiring a camera external reference of the panorama camera, and calculating position information and corresponding orientation information of a mobile robot according to the camera external reference and the position information and corresponding orientation information of the panorama camera. The described method improves the positioning accuracy of a mobile robot and reduces equipment costs.\nD: A panoramic camera device and a panoramic picture generation method. The panoramic camera device comprises multiple camera devices (1) and a processor (2). The camera devices (1) are used for carrying out shooting on a whole scene and generating original picture data. The processor (2) is used for carrying out duplication elimination on the original picture data to generate duplication-eliminated picture data and splicing the duplication-eliminated picture data to generate a spherical panoramic picture. In this way, the original picture data of ranges within the whole range is obtained by means of the camera devices (1), duplication elimination on the original picture data obtained by the camera devices (1) and panoramic splicing are carried out by the processor (2), so as to generate the spherical panoramic picture. To make presentation to a user and smoothly finish data transmission and coding and decoding possibly carried out subsequently, a spherical panoramic picture is converted into a plane panoramic picture. Panoramic picture processing is ensured, and the demands of the user for panoramic shooting are satisfied.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a clock delay reminding method and apparatus, the method comprising: acquiring operation information of a user on a screen when reminding from a clock occurs; selecting corresponding delay reminding time according to the acquired operation information; and reminding upon expiration of the delay reminding time.\nA: An information processing method and device. The method comprises: collecting tag information through a short-distance information collection device disposed on electronic equipment; parsing the collected tag information, to obtain time information, contained in the tag information, about occurrence time corresponding to a prompt event; generating a prompt time when a user is reminded of the prompt event based on the time information; and generating in a memorandum module of the electronic equipment prompt information corresponding to the prompt event and at least containing the prompt event and prompt time. The prompt information can be output through an output unit of the electronic equipment, so as to prompt a user corresponding to the electronic equipment. Through the above technical solution, a user does not need to add the tag information into the memorandum through a manual operation; instead, the electronic equipment directly adds the tag information into the memorandum, and directly prompts the user according to time information in the tag information, so that the user does not miss important information.\nB: The invention relates to the technical field of mobile terminals. Provided are an alarm operation method and device. The alarm operation method is applied to a mobile terminal, and comprises: within a preset time period after the sounding of an alarm, determining whether a temporary snooze interval input by a user has been received; if so, performing timing according to the temporary snooze interval after the sounding of the alarm; and upon reaching the end of the temporary snooze interval, sounding the alarm again. The technical solution of the invention enables quick setting of a temporary snooze interval of an alarm, thereby meeting a requirement for making a temporary adjustment to a snooze interval of an alarm.\nC: The present application provides a method and device for customizing an alarm clock reminder. The method comprises the following steps: obtaining a selected alarm clock reminder file, the alarm clock reminder file comprising a music file, an audio file, and a video music; and associating the alarm clock reminder file with at least one alarm clock, time of which has already been set. In addition to a music file and an audio file, the present application can also set a video file as a reminding mode of an alarm clock, i.e., playing the video file at a preset alarm clock reminding time. According to the present application, reminding modes of an alarm clock can be expanded to video files, bringing more diversified alarm clock reminders and more options for a user.\nD: A method and device for displaying information. The method comprises: acquiring a target picture (S11), the target picture comprising to-be-prompted information; processing the target picture to obtain a prompting picture (S12); and displaying the prompting picture on a screen interface (S13). In the method, manual input of character information of a backlog by a user is not required, and the backlog is displayed on the screen interface of a mobile terminal by means of a picture form, so as to prompt the backlog on an obvious position, thereby preventing a user from forgetting important businesses and reducing user input. Operations are simple and convenient, the time for setting prompting by the user is saved, and the prompting efficiency is improved, and user experience on a mobile terminal is better.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA solar energy powered smart watch comprises a watch body (1) and a watch band (2) which are integrally formed. The interior of the watch body (1) is provided with a display unit (13) comprising a display screen (111), a solar cell plate (112), and a first anti-reflective coating (113). The watch band (2) comprises a storage battery (22), a thin-film solar cell (23) comprising two expandable cell plates (231, 232), and a second anti-reflective coating (24). The solar cell plate (112) and the thin-film solar cell (23) convert solar energy into electric energy, supply the same to the smart watch, and charge the storage battery (22). The first anti-reflective coating (113) and the second anti-reflective coating (24) are used to eliminate reflected light from the solar cell plate (112) and the thin-film solar cell (23), respectively. The smart watch uses two solar cells (112, 23) and the storage battery (22) to realize autonomous power supply, thereby solving a problem of a short battery operating time.\nA: An adjustable solar-powered smart wearable device, comprising a device mounting base (1) and a watchband (2). A mounting cavity (3) is provided on the upper surface of the device mounting base (1). The adjustable solar-powered smart wearable device is formed as a whole unit by adding a retraction apparatus I (6) and a retraction apparatus II (7) to connect the watchband (2) to the device mounting base (1). During use, a switch I (18) controls a motor (12) to operate or not and adjusts the tightness of the watchband (2) so that the watchband is always tightened in different states of people, so as to facilitate the use, and the same product can meet the requirements of different populations, and therefore, the application range is wider. In addition, by adding a solar panel assembly (23) to supply power for a device body (5), the smart wearable device is more environmentally-friendly and energy-saving in use.\nB: Provided is a thin-film solar window LED light, comprising: an LED light strip (1), a solar charge controller (5), a storage battery (4), an LED drive controller (3), and a thin-film solar cell (2). The LED light strip (1) is arranged on an inner side of a top of a casement. The thin-film solar cell (2) is attached onto a glass of the casement. The solar charge controller (5), the storage battery (4) and the LED drive controller (3) are arranged inside a window frame (6) of the casement. The thin-film solar cell (2) is connected to the storage battery (4) via the solar charge controller (5), and the storage battery (4) is connected to the LED light strip (1) via the LED drive controller (3). In the day, when sunlight shines, the thin-film solar cell (2) attached onto the glass generates electricity and stores the same in the storage battery (4); at night, the storage battery (4) supplies electricity to the LED light strip (1) via the LED drive controller (3), thereby providing indoor lighting. The window LED light of the present invention can function as a curtain in addition to lighting. Moreover, the window LED light is readily designed and manufactured, and is easily installed.\nC: Disclosed is a solar battery inductor (10). The solar battery inductor (10) comprises: a solar battery panel (11) and a rod part (12). The rod part (12) is fixedly connected to the solar battery panel (11). The rod part (12) is inserted into the soil. First humidity sensors (121) are respectively arranged at different depth positions of the rod part (12). The first humidity sensors (121) are used to collect the soil moisture at different depths. The solar battery panel (11) comprises a power module (111), an infrared sensor (112) and a receiving and sending module (113). The power module (111) is used to absorb solar energy and convert solar energy into electric energy. The infrared sensor (112) is used to collect plant heights. The receiving and sending module (113) is used to send the plant heights and soil moisture to terminal equipment. Solar energy is converted into electric energy by the power module (111) of the solar battery panel (11), and power is continuously supplied to various sensors, which avoids cumbersome processes for charging the various sensors regularly. In addition, the growth status of plants can be determined by changes in the water seepage speed and plant heights, such as changes in the growth rate and water seepage speed of soil with the plant height.\nD: A leisure mobility scooter powered by solar energy, comprising a solar cell panel assembly disposed on the roof of an electric scooter body, and an energy storage unit connected to the solar cell panel assembly to store electric energy; the energy storage unit is connected to an electric scooter drive mechanism via a circuit control unit and supplies power to the electric scooter drive mechanism; an inclined solar cell panel assembly is also provided on the front of the electric scooter and/or the back of the electric scooter; and the solar cell panel assembly is also connected to the energy storage unit via the circuit to store the electric energy. The solar cell panel assemblies are respectively provided on the roof and the front, or the back of the electric scooter, thus improving the capability of a single electric scooter to convert solar energy into electric energy, and in turn guaranteeing the supply of drive energy for the electric scooter coming from solar energy, and achieving resource saving and green environmental protection. In addition, an attractive pattern is provided on the solar cell panel assembly on the front of the electric scooter so as to achieve a decorative effect. The electric scooter is attractive and elegant, and has an ingenious design and strong practicability, particularly suitable for the disabled or the elderly to use rather than walking.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention provides an antenna, a wearable device, and a terminal device. The antenna comprises: a first component provided with an antenna radiator, the antenna radiator being provided with a first antenna feed point group and a second antenna feed point group; and a second component provided with a contact portion electrically connected with a radio frequency link of a circuit board. The first component and the second component can be moved relative to each other. When the first component is moved to a different preset position relative to the second component, the first antenna feed point group and the second antenna feed point group are separately electrically connected with the contact portion.\nA: The present invention relates to a wearable device and a display method. The wearable device comprises: a dial plate, wherein the dial plate is provided with an accommodation groove; a watch body, at least partially arranged in the accommodating groove and rotationally connected to the dial plate, wherein the watch body is provided with a functional component; and a position detection member, comprising a first component and a second component, wherein one of the first component and the second component is arranged on the dial plate, the other is arranged on the watch body, the first component comprises a first sub-component and a second sub-component, and the first sub-component and the second sub-component are spaced apart in a rotation direction of the watch body; and the position detection member has a first state and a second state, when the position detection member is in the first state, the first sub-component is opposite the second component, and when the position detection member is in the second state, the second sub-component is opposite the second component.\nB: The embodiments of the present application provide an electrical connection assembly and a mobile terminal, and relate to the technical field of electronic communication to solve the problem of unstable contact of electrical connection points between electronic elements and a surface with unstable resistance. The electrical connection assembly comprises a first component, a second component, a conductive portion, and a first insulating layer. The first component and the second component each have a conductive surface, and the conductive surface of the first component is provided opposite the conductive surface of the second component. The conductive portion is located between the first component and the second component, the conductive surface of the first component is provided with a first insulating layer, and the conductive portion is in contact with the first insulating layer. The conductive portion is electrically connected to the conductive surface of the second component\nC: An adjustment and positioning device and method, and a radiation scan imaging apparatus. The adjustment and positioning device is used to adjust a direction of a ray source assembly (10) of the radiation scan imaging apparatus. The adjustment and positioning device comprises: a base (100), wherein the base (100) comprises a first component and a second component connected to each other, and is configured to be used to support the ray source assembly (10) such that the ray source assembly (10) is vertically positioned on the second component; a first adjustment mechanism (200) mounted on the first component of the base (100) and an apparatus frame of the radiation scan imaging apparatus, and is configured to drive, by driving the entire base (100) to move relative to the apparatus frame, the ray source assembly (10) to perform translational motion in a first direction so as to adjust the position of the ray source assembly (10); and a second adjustment mechanism (300) mounted on the second component of the base (100) and the apparatus frame, and is configured to drive, by driving the second component to move relative to the first component, the ray source assembly (10) to rotate within an angle range so as to adjust a beam direction of the ray source assembly (10).\nD: A wearable electronic device, comprising a first main body portion; a second main body portion, the second main body portion being connected to the first main body portion; a wearable portion, connected to opposite ends of the first main body portion, the wearable portion being used to secure the first main body portion and the second main body portion onto an external object; a first antenna, arranged on the first main body portion or the second main body portion, the first antenna being used to transmit a radio frequency signal; and a second antenna, arranged on the wearable portion, the second antenna being used to transmit a radio frequency signal.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided in the present invention are a method and a system for controlling a smart home by means of terminal positioning, the method comprising the following steps: starting up the positioning function of a terminal to acquire current position coordinates of the terminal; identifying the current position coordinates and, when determining a position away from the home, acquiring current temperature information; and, if the current temperature information is sunny, sending control information to the smart home, the smart information being used for opening the windows. The technical solution provided by the present invention has the advantage of good user experience.\nA: The present invention provides an auxiliary positioning method and system. The method comprises the following steps: acquiring the GPS coordinate information of a current location; capturing the image information of the current location, and retrieving, according to the GPS coordinate information, gallery information of all floors that have the coordinate information; comparing the image information and the gallery information, and if the image information corresponds to a second image, determining the floor corresponding to the second image as the auxiliary information of the GPS coordinate information. The technical solution provided by the present invention has the advantage of good user experience.\nB: Provided in the present invention are a terminal-positioning unmanned aerial vehicle control method and system, the method comprising the following steps: acquiring first position coordinates of a terminal and second position coordinates of an unmanned aerial vehicle; calculating a difference between an X value of the first position coordinates and an X value of the second position coordinates; if the difference is negative, receiving a user left turn command and replacing the left turn command with a right turn command. Technical solutions provided by the present invention have the advantage of good user experience.\nC: Disclosed are a terminal system update method and system, the method comprising the following steps: obtaining a current system version of a terminal; detecting a system version of a network; if the system version of the network is higher than the current system version, and if the current time is late at night, directly performing system updating and upgrading. The present technical solution has the advantage of a good user experience.\nD: A control method and device for a smart home. The control method comprises: acquiring the weather information of the region in which a terminal is located, and acquiring, from a smart home application, the state information of a target smart home, the smart home application being installed on the terminal (S102); synchronously displaying the state information and the weather information of the target smart home on the screen of the terminal (S104); receiving a trigger signal generated on the basis of the state information and the weather information (S106); and generating a control signal on the basis of the trigger signal, the control signal being used for controlling the operation state of the target smart home by means of the smart home application (S108). This invention solves the technical problem in the prior art of low convenience level of the smart home.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present application provides a power supply circuit, a chip, and a display screen. The circuit comprises: a reference circuit configured to generate a first-stage mirror current; a first current mirror group connected to the reference circuit; a first switch connected to the first current mirror group and configured to control turning-on or turning-off of the first current mirror group; a second current mirror group connected to the first current mirror group; a second switch connected to the second current mirror group and configured to control turning-on or turning-off of the second current mirror group, when the first switch and the second switch are turned on, the first current mirror group and the second current mirror group cooperating to form a current mirror, which is configured to perform mirror processing on the first-level mirror current, so as to obtain an output current; and an output stage connected to the second current mirror group and configured to output the output current. According to the present application, the current precision in the whole current range of an output constant-current source is effectively improved.\nA: The present invention provides an alternating-current test circuit, comprising: a live wire input end and a null wire input end; a first diode and a second diode formed by Zener diodes of which the anodes are connected to each other; a first resistor and a second resistor; a rectification module connecting the live wire input end and the null wire input end; a power supply for supplying power; a current mirror module, the current values of a first output end and a second output end thereof having a fixed ratio; a unidirectional conduction module, used for enabling the current mirror module to conduct the first diode unidirectionally; and a current comparison module, comprising an oscillator, a timer, a current comparator, and a reference current source, and being used for comparing the current value of the second output end of the current mirror module with a reference current value. In the present invention, a power supply state of an alternating-current power supply is determined by measuring a resistance value between a null wire and a live wire of the alternating-current power supply, and a high level is outputted when there is no alternating-current voltage between the null wire and the live wire and the resistance value between the null wire and the live wire is less than a set value; and a test threshold for determining a power supply state is not affected by fluctuation of a power supply, providing high reliability, and the circuit structure is simple, and the design and debugging are convenient.\nB: A memory data reading circuit and a memory, which relate to the technical field of integrated circuits, and can solve the problem of data read by a memory data reading circuit being inaccurate. The memory data reading circuit (01) comprises a first current mirror (301), a first resistor (303) and a voltage amplifier (40), wherein an input end (a) of the first current mirror (301) is connected to a first data reading end (p) of a memory cell, and an output end (b) of the first current mirror (301) is connected to a grounding end by means of the first resistor (303); the first current mirror (301) is used for amplifying a current mirror image, which is output by the first data reading end (p) of the memory cell, to a first mirror current (IRO), and outputting the first mirror current (IRO) to the output end (b) of the first current mirror (301); a first input end (c) of the voltage amplifier (40) is connected to the output end (b) of the first current mirror (301), and a second input end (d) of the voltage amplifier (40) is used for receiving a reference voltage (Iref); and an output end (e) of the voltage amplifier (40) is connected to an output end of the memory data reading circuit (01).\nC: Disclosed in the present invention are a drive circuit and a display device. The drive circuit comprises a substrate circuit and at least one additional circuit, wherein the at least one additional circuit is connected to the substrate circuit. The substrate circuit comprises a first light emitting device, a first drive unit and a first capacitor unit. The first drive unit is respectively connected to the first light emitting device and the first capacitor unit; and the first capacitor unit is charged by means of the first drive unit until the compensation voltage value of the first drive unit is met. After the charging of the first capacitor unit is completed, the first capacitor unit is coupled with a first reference potential so that the first drive unit obtains an adjustable cross voltage, and the first drive unit outputs a stable current according to the adjustable cross voltage to drive the first light emitting device to operate. The present invention improves the problem of brightness uniformity caused by voltage drop, thereby improving the image quality of a display.\nD: The present invention provides a reading circuit for reading the resistance state of a storage unit, comprising: a power-on unit, a current mirror unit, and an output unit, wherein the first end of the power-on unit is connected to a read voltage signal, the second end of the power-on unit is connected to the bit line of a storage unit to be read, and the power-on unit provides said storage unit with a read voltage required for a read operation to generate a read current, the read current being output by the third end of the power-on unit; the input end of the current mirror unit is connected to the third end of the power-on unit to receive the read current, and the output end of the current mirror unit outputs a mirror current, and the mirror current is proportional to the read current; and the output unit is configured to output the reading result according to the mirror current. The reading circuit of the present invention has a simple structure and is easy to implement.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA shear wall arrangement method and apparatus based on a generative adversarial network. The method comprises: acquiring an architectural design drawing to be processed (S101); extracting key elements from the architectural design drawing, and carrying out filling processing on the key elements by using different colors, so as to generate image features to be inputted (S102); and inputting said image features into a pretrained structural generative adversarial network model and processing same, so as to generate a structural design drawing (S103). Thus, a corresponding shear wall structure design can be quickly output according to a standard floor plane drawing in an architectural design, thereby realizing the quick design of a shear wall structure corresponding to the architectural design.\nA: A generative adversarial mechanism and attention mechanism-based standard face generation method, comprising: a dataset design step, constructing, according to database-related annotation data, face code having a plurality of non-limiting factors for a face image, and taking the code and the face image as inputs of a model; a model design and training step, using a generative adversarial mechanism and an attention mechanism to design a corresponding network structure, and using the constructed data pair to perform model training, so as to obtain a network model weight; and a model prediction step, predicting the acquired face image by means of the model. The present invention applies deep learning network technology to standard face generation to generate a colour, front-facing, and standard face image under normal light illumination. The method using a deep learning network is capable of obtaining an accurate standard face photograph, reducing the difficulty of matching with data in a single-sample database, and laying a solid foundation for subsequent face feature extraction and single-sample facial recognition.\nB: A method employing generative adversarial network for predicting a face change, comprising: S1 of acquiring face data samples; S2 of constructing a generative adversarial network model consisting of a generator and a discriminator, designing a loss function, and performing iterative training on the generator and the discriminator; and S3 of inputting a target young face image to be processed into the trained generative adversarial network model, and outputting a target aged face image corresponding to the target young face image. The method is adopted to construct a unique generative adversarial network model and loss function, provides robustness for aging, and accounts for change information including the forehead, hair, and the like, thereby improving the accuracy and uniqueness of prediction.\nC: Disclosed in the　present invention are an automatic color filling method and apparatus for a building general drawing. Said method comprises: acquiring plane general drawing data of a building, and performing analysis on the basis of preset building basic element features to obtain basic elements of a building general drawing; on the basis of basic element data, generating specific elements according to a preset corresponding policy between the specific elements and the basic elements; receiving and analyzing a color matching mode instruction, and according to corresponding color matching policies of the elements under a preset color matching mode, obtaining color matching schemes of the elements under the selected color matching mode; respectively selecting corresponding colors according to the color matching schemes, so as to perform color matching and filling on the basic elements and the specific elements; and processing, by using a selected picture format conversion policy, the building general drawing of which the color matching and filling has been completed, so as to obtain a color-filled building general drawing in a corresponding picture format. The present invention provides an efficient and highly-accurate solution of automatic color filling for a building general drawing.\nD: A prefabricated building wall comprises a main wall (20), a beam (10), a foundation, and a shear wall (30). The beam (10) is mounted at a top end of the main wall (20), and the shear wall (30) is mounted at a bottom end of the main wall (20). The shear wall (30) is filled with a concrete layer (31) and forms the foundation. An outer side surface of the main wall (20) is provided with a bamboo charcoal layer (21). The shear wall (30) comprises a plurality of widthwise support tubes (301), a plurality of lengthwise support tubes (302), and a connecting assembly. The plurality of widthwise support tubes (301) are arranged along a vertical direction of the shear wall (30) and are spaced apart from each other. The plurality of lengthwise support tubes (302) are arranged along a widthwise direction of the shear wall (30) and are spaced apart from each other. A plurality of lengthwise support tubes (302) are connected between two adjacent widthwise support tubes (301). The lengthwise support tubes (302) are fixedly connected to the widthwise support tubes (301) by the connecting assembly. The prefabricated building wall absorbs smoke and dust of an interior space and has a stable shear wall structure.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA character string segmentation method, apparatus and device, said method comprising: acquiring forward segmentation results of a character string to be segmented, said forward segmentation results comprising at least one first word (101); acquiring backward segmentation results of the character string to be segmented, said backward segmentation results comprising at least one second word (102); acquiring a word frequency of said first word and a word frequency of said second word, said word frequencies being the number of times predetermined words appear in a predetermined text (103); determining segmentation results of said character string to be segmented according to the word frequency of said first word and the word frequency of said second word, wherein the segmentation results of said character string to be segmented are said forward segmentation results or said backward segmentation results (104). Not only does the present invention improve the success rate of segmentation, but also increases the probability of the semantics of words being accurate within the segmentation results.\nA: A text information processing method, device and terminal, wherein the method comprises: determining a pinyin character string corresponding to text information to be processed (101); using an N-tuple algorithm to convert the pinyin character string into a character string set that comprises a plurality of character string elements (102); determining an index position and the number of occurrences, in a total set of character strings, of each character string element in the character string set (103); generating a pinyin hash vector corresponding to the text information to be processed according to the index position and number of occurrences corresponding to each character string element (104); and processing the pinyin hash vector by means of an embedded neural network to obtain continuous features corresponding to the text information to be processed (105). Since the pinyin hash space is adopted to characterize words in a lexicon, there is good robustness for words that do not appear in the lexicon.\nB: The present disclosure relates to a water-body segmentation method and apparatus, an electronic device, and a storage medium. The method comprises: segmenting, according to spectrum information of a first target image, the first target image to obtain a water-body region, and acquiring a first water-body segmentation result of the first target image; segmenting, by means of at least one preset water-body segmentation technique, the first target image to obtain a water-body region, and acquiring at least one second water-body segmentation result; and determining, according to the first water-body segmentation result and the at least one second water-body segmentation result, a target water-body segmentation result of the first target image.\nC: Disclosed are a license plate verification method and apparatus, and a computer device and a storage medium. Different deviation comparison modes are determined by means of the result of comparing the length of a target segmentation character string with the length of a segmentation character string to be verified; a first target comparison position and a second target comparison position are updated according to the deviation comparison mode by comparing the character of the target segmentation character string with the character of the segmentation character string to be verified; when the first target comparison position is the last position, the number of character verification errors is adjusted according to the second comparison result of the last position. By comparing the preset number of allowable character verification errors with the number of character verification errors, the influence of errors occurring in the license plate recognition process on license plate verification is well avoided, so that the pass rate and accuracy of license plate recognition are improved, and the misjudgment rate of license plate verification is reduced.\nD: An image region recognition method, comprising: obtaining an image to be segmented, wherein said image comprises a plurality of extreme points (101); generating first image feature information according to said image, wherein the first image feature information comprises N image matrices and a first heat map, the first heat map being generated according to the plurality of extreme points (102); obtaining, by means of a first image segmentation model, a first image segmentation region corresponding to the first image feature information (103); obtaining a second heat map according to annotation points corresponding to the first image segmentation region, and the first image segmentation region (104); obtaining, by means of a second image segmentation model, a second image segmentation region corresponding to said image (105); and generating an image recognition result of said image according to the second image segmentation region (106). According to the method, by means of auxiliary segmentation in the second stage, the region having a poor effect in the image segmentation in the first stage is further segmented, so as to obtain a more accurate image segmentation result, thereby improving the performance of image segmentation.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA naked-eye 3D touch control device and a manufacturing method therefor, and a display device containing the naked-eye 3D touch control device. The naked-eye 3D touch control device comprises a first substrate (7), a second substrate (8) and a liquid crystal layer (30) which is located between the first substrate (7) and the second substrate (8), wherein a surface of the first substrate (7) which faces one side of the liquid crystal layer (30) is provided with a common electrode (1), an insulation layer (20) and a slit electrode unit (3) in sequence, and is also provided with a touch control electrode unit (2); the slit electrode unit (3) and the common electrode (1) are arranged opposite to each other; the touch control electrode unit (2) and the slit electrode unit (3) are arranged at intervals; each slit electrode unit (3) comprises at least two slit electrodes; and each touch control electrode unit (2) comprises at least two touch control electrodes, and the touch control electrodes located in the same touch control electrode unit (2) are arranged on the same layer and are insulated from each other. The 3D touch control device integrates the 3D display and touch control functions.\nA: Provided are a 3D touch liquid crystal lens grating (11), a manufacturing method thereof, and a 3D touch display device (1). The 3D touch liquid crystal lens grating (11) comprises: a lower substrate (12), comprising a lower transparent substrate (121) and a surface electrode (122), the surface electrode (122) being formed on the lower transparent substrate (121); an upper substrate (13), in cell alignment with the lower substrate (12), and comprising an upper transparent substrate (131) and a strip-shaped electrode (132), the strip-shaped electrode (132) being formed on the upper transparent substrate (131); and liquid crystal, filled between the surface electrode (122) and the strip-shaped electrode (132). At least one touch electrode (133) is adjacently arranged between the upper transparent substrate (131) and the strip-shaped electrode (132), and a transparent isolation cushion layer (134) is arranged between the touch electrode (133) and the strip-shaped electrode (132). The 3D touch liquid crystal lens grating (11) can reduce the double-layer electrode used for touch control in the prior art to a single-layer electrode, thereby reducing the thickness of the 3D touch display device (1), simplifying the manufacturing process, and reducing the production cost of a product.\nB: A display panel and a display device, relating to the technical field of display, and capable of improving the accuracy of touch recognition in touch display and reducing the occurrence probability of undesired touch operations. In the display panel, a mutual-capacitive touch film layer (2) comprises a driving electrode unit and a sensing electrode unit; one of the driving electrode unit and the sensing electrode unit is a first touch electrode unit (31), and the other one of the driving electrode unit and the sensing electrode unit is a second touch electrode unit (32); the first touch electrode unit (31) comprises a plurality of first touch electrodes (41) extending along a first direction (h1) and arranged along a second direction (h2) and a plurality of second touch electrodes (42) extending along the first direction (h1) and arranged along the second direction (h2); the plurality of first touch electrodes (41) have one-to-one correspondence to the plurality of second touch electrodes (42); the extension direction of the first touch electrodes (41) and the extension direction of the corresponding second touch electrodes (42) are located on the same straight line; and the first touch electrodes (41) and the corresponding second touch electrodes (42) are arranged at intervals.\nC: A touch display panel (10) and a touch display device (20). The touch display panel (10) comprises a substrate (100) and multiple first touch electrode chains (200) and second touch electrode chains (300) arranged at intervals on the substrate (100). The first touch electrode chains (200) and the second touch electrode chains (300) are disposed to intersect and are insulated from one another. Each first touch electrode chain (200) comprises multiple first electrode units (210) consisting of first electrode lines (211) and second electrode lines (212) that intersect and are electrically connected with one another. Each second touch electrode chain (300) comprises multiple second electrode units (310) consisting of third electrode lines (311) and fourth electrode lines (312) that intersect and are electrically connected with one another. In the touch display panel, intersections only occur at the touch electrode chains, and thus there are fewer intersecting points, and the electrode lines are arranged in the electrode unit such that the touch display panel is more bendable.\nD: A touch screen, a manufacturing method thereof, and a display apparatus. The touch screen comprises: an opposite substrate (1), an array substrate (2), and a liquid crystal layer (3) between the opposite substrate (1) and the array substrate (2), black matrices (4) being provided on a surface of the opposite substrate (1) facing the liquid crystal layer (3). The touch screen further comprises: a first touch electrode (5), an insulation layer (6), and a second touch electrode (7) that are sequentially disposed in a stacked manner on the surface of the opposite substrate (1) opposite to the liquid crystal layer (3). The first touch electrode (5) and the second touch electrode (7) are respectively located in an area corresponding to the black matrices (4). The first touch electrode (5) comprises multiple first touch sub-electrodes (51) distributed along a first direction. The second touch electrode (7) comprises multiple second touch sub-electrodes (71) distributed along a second direction perpendicular to the first direction. Because the first touch electrode (5) and the second touch electrode (7) are located on the surface of the opposite substrate (1) opposite to the liquid crystal layer (3) and are located in the area corresponding to the black matrices (4), not only light reflection and light absorption can be reduced to improve light transmittance, but also the adhesion precision and the product yield can be improved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a method and device for quantitative granule counting. The device includes a control system, a feeder, a conveyor, a camera, a memory bucket and a trimmer, wherein the control system includes an image processor, a combined computing processor and a PLC; the feeder feeds the conveyor dispersedly, at least one memory bucket is provided under the conveyor according to layers, the camera and image processor acquire image data for the material on the conveyor and analyze and count granules, and the material is transported to the corresponding memory bucket, the number of granules of the material corresponding to the memory bucket; the combined computing processor combines and computes the amount of the material in all the memory buckets, and compares same with a predetermined target granule number, selects a combination of memory buckets that is closest to the target granule number and is within an allowed deviation range, and pulls out the material in the selected memory buckets. The present invention combines the batch CCD granule counting technology in which the number of granules cannot be controlled with the combined computing technology, and therefore the accuracy and speed of quantitative granule counting can be increased significantly.\nA: Disclosed is a beltless fully automatic mechanical sampling system for a train. The system comprises: a work platform (1), a sliding rail (11) being provided on the work platform (1); a sampling mechanism (2) slidably arranged on the sliding rail (11) and configured to collect materials from a carriage (13) of the train; and an integrated sample preparation assembly (100) comprising a reject flowback mechanism (6), and a feeder (3), a crusher (4), a fixed mass divider (5) and a sample retention barrel (7) sequentially arranged from top to bottom, wherein the feeder (3) is configured to deliver the material to the crusher (4), the crusher (4) is configured to crush the material and deliver the crushed material to the fixed mass divider (5), the fixed mass divider (5) is configured to divide the crushed material into a sample and a reject, deliver the sample to the sample retention barrel (7) and deliver the reject to the reject flowback mechanism (6), and the reject flowback mechanism (6) is configured to deliver the reject to the carriage (13).\nB: Disclosed is a material-conveying device, comprising: a conveying mechanism (1); material storage mechanisms respectively arranged at at least one end of the conveying mechanism (1) in a conveying direction; and a taking and placing mechanism (3) moving along the conveying mechanism (1), wherein the taking and placing mechanism (3) comprises at least two material temporary storage areas, the material temporary storage areas comprising a feeding temporary storage area (31) and a return material temporary storage area (32). Any temporary storage area can achieve temporary storage in feeding and returning processes. If feeding needs to be carried out for two production apparatuses, the conveying mechanism (1) only needs to drive the taking and placing mechanism (3) to sequentially move to a position close to the corresponding production apparatus, materials in the feeding temporary storage area (31) are placed in the corresponding apparatus, and the material-conveying device is coordinated with a plurality of production apparatuses to realize production line cooperation, such that the production efficiency is improved.\nC: Disclosed are an organic waste liquid self-sustaining smoldering continuous reaction device and a reaction method. The reaction device comprises a smoldering furnace, a stirrer (12), a conveying mechanism (13), a feeder (10), a discharging device (11) and a controller, wherein the smoldering furnace is used as a combustion chamber of the reaction device; the stirrer (12) is used for mixing organic liquid slurry to be treated with sand; the conveying mechanism (13) conveys stirred materials into the smoldering furnace; the feeder (10) and the discharging device (11) are used for inputting and outputting the materials into/from the smoldering furnace; and the controller is used for monitoring the smoldering surface and the temperature in the smoldering furnace in real time, and accordingly controlling the combustion process in the smoldering furnace so as to ensure continuous smoldering operation, uninterrupted supply of materials, recycling of sand and real-time monitoring of the temperature, such that batch treatment of organic waste liquid can be realized, and the demand in the market for the high-efficiency treatment of organic waste liquid slurry is met.\nD: A method and a device for dispensing discrete articles. Said method comprises: driving a conveyor (1) to convey articles; the articles outputted by the conveyor (1) in one start-stop period forming at least one individual article stack; performing continuous image acquisition on one image acquiring region (201) which is located at an end section of the conveyor (1); processing the acquired images in real time so as to determine the number of outputted articles; and searching for one combined article stack, the number of articles of each combined article stack being the same as a target number, and dispensing one combined article stack to a container (6). As the image acquiring region is provided across the output end section of the conveyor, and image acquisition and counting can be completed without a detection platform or a counting platform, the length of the present conveyor is reduced as compared with a conveyor having a detection platform or a counting platform, etc., simplifying the structure, and saving space.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a self-learning online update method for a multi-classification model, relating to artificial intelligence. The method comprises: according to a preset statistical period, performing monitoring and compiling statistics on the prediction performance of a model to be updated, and storing, in a statistical database, a predication performance statistical result in each statistical period (S110); checking data in the statistical database by using a preset trigger mechanism, so as to determine whether said model needs to be updated online (S120); if said model needs to be updated online, acquiring online newly generated data, and updating training data of said model according to the newly generated data (S130); and updating and training said model by using the updated training data, so as to obtain an updated multi-classification model (S140). The present application further relates to blockchain technology. The statistical database is stored in a blockchain. The existing problems of the prediction precision of a multi-classification model being significantly reduced as time goes by, and the multi-classification model being unable to be automatically updated can be solved.\nA: A federated-learning-based user data classification method and apparatus, and a device and a medium, which relate to the technical field of information security. The method comprises: acquiring training data, training a local model by means of the training data, and generating a gradient matrix on the basis of a change gradient of a weight matrix of the local model during each training cycle; taking a preset upload rate as a channel selection threshold value, selecting, from a calculation result, a channel conforming to the channel selection threshold value to serve as a target channel, and taking a gradient matrix in the target channel as a target gradient matrix; selecting a target gradient matrix with a non-zero parameter as the weight of a server; updating the local model according to the weight of the server; and classifying user data according to an updated local model. The present invention also relates to blockchain technology. The training data is stored in a blockchain. By generating an updated local model, the security of private data of a user is protected during user data classification.\nB: A training model updating method and system, and an agent, a server and a computer-readable storage medium, relating to the field of fintech. The method comprises the steps of: a federated learning server receiving a first training model sent by each reinforcement learning agent that runs in a real-time environment, and receiving a second training model that is sent by a data server and is obtained by training historical sample data (S10); performing federated learning on the first training model and the second training model to obtain a federation model (S20); and sending the federation model to the data server and each reinforcement learning agent for the data server and each reinforcement learning agent to correspondingly update the training models according to the federation model (S30).\nC: The present application relates to the technical field of artificial intelligence, and discloses a classification model training method, a hyper-parameter searching method, and a device. The training method comprises obtaining a target hyper-parameter of a classification model to be trained, the target hyper-parameter being used for controlling a gradient update step length of said classification model, said classification model comprising a scale-invariant linear layer, the scale-invariant linear layer keeping a prediction classification result, outputted when a weight parameter of said classification model is multiplied by any scale coefficient, unchanged; and updating the weight parameter of said classification model according to the target hyper-parameter and a target training mode to obtain a trained classification model, the target training mode enabling the modulus length of the weight parameter of said classification model before update to be the same as that of the updated weight parameter of said classification model. On the basis of the technical solution of the present application, computation resources consumed by training the classification model can be reduced under the condition of ensuring the precision of the classification model.\nD: A text classification model training method and apparatus, a text classification method and apparatus, a computer device and a medium, which relate to the fields of artificial intelligence and model construction. By means of uploading a model parameter of a local classification model and a local classification result to a federated learning server for performing joint learning, the security of text data in a model training process can be improved. The training method comprises: acquiring a text training set, and performing text classification training on a local classification model according to the text training set; encrypting a model parameter of the trained local classification model and a local classification result, and then uploading the encrypted model parameter and local classification result to a federated learning server for performing joint learning so as to obtain a learning parameter; and receiving the learning parameter sent by the federated learning server, updating the trained local classification model according to the learning parameter, and taking the updated local classification model as a trained text classification model. The present application further relates to blockchain technology. The text training set can be stored in a blockchain.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA user recommendation method and device. The method can comprise: detecting a browsing event for any one interaction object (102); acquiring a provider user in a communication-capable state of the any one interaction object (104); and recommending information about the provider user to an initiator user of the browsing event, so that the initiator user initiates a communication event for the any one interaction object to the provider user (106). The method and device can achieve matching between interaction users, thereby facilitating the improvement of interaction efficiency.\nA: An intelligent reminding method, which is applied to a first electronic device. The method comprises: receiving a message sent by a second electronic device, wherein the message is a first message received by means of a first application, and the first message comprises a task that a first user is required to handle; determining whether there is first interactive information in the first electronic device, wherein the first interactive information occurs later than the time at which the first message is received, and an interactive object of the first interactive information is a second user who operates the second electronic device; and when there is no first interactive information in the first electronic device, presenting reminder information, wherein the reminder information is used for giving, to the first user, a prompt that the task has not been completed.\nB: A resource recommendation method and device, the method comprising: if a preset resource recommendation condition is met, obtaining state information, user feature information, and population category information of a target user (102); determining, according to the state information, the user feature information, and the population category information, a resource to be recommended matching the target user (104); and recommending the resource to be recommended to the target user (106). Therefore, the method can recommend a corresponding resource to a user on the basis of state information, a user feature, and a population category of the user. Because the state information, the user feature information, and the population category of the user can reflect the interest and current demand of the user to a great extent, the method can implement the accurate recommendation of a resource, thereby improving the recommendation efficiency.\nC: Provided by embodiments of the present invention are a method for generating an interactive object, a device, and an electronic apparatus. The method comprises: acquiring audio information in real-time, and detecting whether a pre-determined keyword is present in the audio information; if so, acquiring an interactive object corresponding to the pre-determined keyword, and determining a target user corresponding to the audio information; capturing a face image of the target user from a video interface displaying the target user, analyzing the face image, and obtaining illumination information of a scene around the target user; and displaying, on the video interface, the interactive object rendered according to the illumination information. The invention achieves generation of an interactive object on the basis of video communication contents of a user, and real-time display of the same in a video image interface of a counterpart user, and a lighting effect of the interactive object is consistent with a scene around the counterpart user, thereby enriching interactive experience of video chatting for users, and enhancing interaction correlations between chat content and video scenes.\nD: An interaction record query processing method and device. The interaction record query processing method comprises: acquiring a data interaction record of a first user (110); generating an interaction record query label (120), wherein the interaction record query label is used for querying the data interaction record of the first user; sending the interaction record query label to the first user (130); receiving a query request, that is initiated by a second user different from the first user based on the interaction record query label, on a querying link of the data interaction record (140); and returning the data interaction record to the second user in response to the query request (150). By means of the method and device, an authorized user beyond users of both sides who perform data interaction is also enabled to query an interaction record generated by the data interaction, and the query can be performed without the users of both sides who perform the data interaction.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an image processing method and apparatus, a mobile terminal video processing method and apparatus, a device and a medium. The image processing method comprises: determining an image attribute of each of a plurality of image blocks in an image to be processed; determining, according to the image attribute of each image block, a filtering model corresponding to each image block; and filtering each image block by means of the filtering model corresponding to each image block, so as to obtain a filtered image of the image to be processed.\nA: The present application relates to the technical field of image processing, and disclosed are a neural network-based image processing method and apparatus, for use in ensuring image quality and reducing image processing delay. The method comprises: inputting multiple frames of images to be processed into a first neural network for calculation to obtain a first image; and respectively inputting multiple image groups into multiple second neural networks for calculation to respectively obtain multiple frames of second images, each image group comprising the first image and one of the multiple frames of images to be processed.\nB: Disclosed are an image processing method and apparatus, a terminal and a storage medium. The method comprises: determining a Bayer matrix according to a difference, Z bits, between a colour depth, X bits, of an image to be processed and a colour depth, Y bits, of a display device; dividing the image to be processed according to the Bayer matrix, and obtaining Q image blocks; assigning pixel values represented by the Y bits of the tth image block among the Q image blocks to a matrix Bt(i,j), and assigning pixel values represented by the remaining Z bits of the tth image block to a matrix Pt(i,j); processing, according to a pre-set operation relationship, a pre-set numerical value and a sum St of element values in the matrix Pt(i,j) to obtain Kt, wherein the operation relationship comprises a rounding operation; and utilizing Kt to correct element values in Bt(i,j), and using the corrected element values as pixel values of corresponding pixels on the image to be processed.\nC: The present application relates to the field of artificial intelligence, and provides a method, device and system for processing an image. The method comprises: obtaining a plurality of image blocks, the plurality of image blocks being obtained by segmenting a pathological image to be analyzed; inputting the plurality of image blocks into a first analysis model to obtain a first analysis result, and classifying, by the first analysis model, each of the plurality of image blocks according to the number or area of suspicious lesion components; inputting at least one second type image block in the first analysis result into a second analysis model, and analyzing, by the second analysis model, the position of a suspicious lesion component of each input second type image block to obtain a second analysis result; finally, integrating the first analysis result and the second analysis result to obtain a final analysis result of the pathological image. According to the method, a pathological image is analyzed by means of two analysis modes, so that the problem of misjudgment of pathological image analysis results caused by human subjective factors can be reduced.\nD: Provided are an image interest point detection method and device. The method comprises: acquiring an original input image; performing down-sampling processing on the original input image, so as to obtain a plurality of sampling images with different resolution ratios; dividing each sampling image into a plurality of small image blocks; performing filtering processing on the plurality of small image blocks in each sampling image in sequence by using a Gauss-Laplace filter, so as to obtain filtering images of the plurality of small image blocks in each sampling image; and acquiring image interest points of the filtering images of the plurality of small image blocks in each sampling image. The present invention is used for solving the problems of more occupied memory resources and low detection speed in the prior art.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method and a device for visitor traffic statistics. The method comprises: obtaining first device information in respect of devices within a target area, said information being detected by means of a first communication mode (101); determining a first quantity in respect of the devices within the target area according to the first device information (102); calculating a second quantity in respect of the devices within the target area according to the first quantity and a calibration factor, and using the second quantity as the real-time visitor traffic of the target area, wherein the calibration factor is acquired as second device information detected on the basis of a second communication mode (103). In the method and the device for visitor traffic statistics, in comparison to the prior art, it is possible to increase the accuracy of visitor traffic statistics because the calibration factor is not set artificially, but rather is acquired as second device information detected based on a second communication mode.\nA: An information updating method and apparatus, and an electronic device and a readable storage medium. The method comprises: obtaining first device information of a smart device from a target server (S101); determining whether a version number in the first device information is greater than a version number in second device information stored in a local database (S102); if the version number in the first device information is greater than the version number in the second device information stored in the local database, searching the second device information for target device names that are the same as a device name in the first device information (S103); and if the target device names that are the same as the device name in the first device information can be found, for each target device name, updating device attributes in the local database according to the first device information (S104). The method can quickly achieve the updating and increase an updating speed by updating the second device information in the local database without updating mesh gateway software.\nB: A method of controlling a washing machine, a control device, and a control system. The method comprises: receiving apparatus information and fault information of a washing machine (410) transmitted by the washing machine (410); querying an installation information database about a first quantity of washing machines (410) in a preconfigured area and having apparatus information identical to that of the washing machine (410); if the first quantity exceeds a first preconfigured threshold, querying a warning history database about a second quantity of washing machines (410) having fault information identical to that of the washing machines (410) in a preconfigured time interval in the preconfigured area; and determining a cause of a fault on the basis of the first quantity and the second quantity.\nC: The present invention provides a statistical method and apparatus for passenger flow. The method comprises: obtaining physical coordinate information of one or more monitored areas; determining, according to the physical coordinate information, base station configuration information, and cell configuration information, information about a cell covering the one or more monitored areas; and making statistics on passenger flow of the one or more monitored areas by counting users in the cell covering the one or more monitored areas. The present invention solves the problem that to improve statistical precision, all statistical methods in the prior art require system upgrade and/or renovation; therefore, high-precision statistics can be implemented without upgrading and/or renovating the system, which makes high-precision statistics more convenient.\nD: A navigation method, apparatus (1201, 1301, 1401), map and system. The method comprises: a first device acquiring environment information; determining, according to the environment information, a second passing manner for a target passing area; and sending a second passing manner notification message to a second device. Therefore, the first device enables, according to the second passing manner notification message, the second passing manner for the target passing area in a map, and disables a first passing manner for the target passing area in the map. A second passing manner, which is suitable for the current environment, and a first passing manner, which is currently enabled in a map, are jointed to uniformly guide the passing of a second device, so that not only can the second device complete passing in real time according to the passing manner that is suitable for the current environment, a vehicle owner is also not required to participate in decision making. The method is effectively compatible with various map navigation scenarios, including an autonomous driving scenario, and facilitates the improvement of the planned traffic capacity of the second device.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA smart household security system on the basis of the Internet of things comprises a central platform server (1), an LAN communication module (2), a security company alarm server (3), an account number manager (31), a receipt module (32), a positioning module (33), a VPN communication module (4), a storage cloud end (5), a data storage module (51), a time axis log module (52), an operator communication module (6), a short message notification module (61), a telephone notification module (62), a handheld client (7), a communication module (8), a wireless gate access control system (9), a smog sensor (10), a web camera (11), a wireless alarm probe (12), an alarm output signal lamp (13), and a monitoring module (14). The alarm device is connected to the platform service; because the web camera (11) is used, real-time video check is supported; an alarm position can be accurately reported by means of the positioning module (33) when an alarm event occurs, and corresponding household information is provided to the working staff; by arranging the storage cloud end (5), the system has a mass storage capability, all alarm data in 3 to 5 years can be effectively stored, thereby facilitating searching and reading.\nA: A weather clock that can automatically correct time comprises: a main control module, a time base module (1) used for implementing a timing function, a communication module (3) used for accessing an Internet network (2) so as to connect to a server, a display module (4) and a power supply module (5), wherein the main control module comprises a processor (6) and a storage unit (7), and the processor (6) is connected to the storage unit (7), the time base module (1), the communication module (3) and the display module (4) in communication mode respectively. The processor (6) periodically obtains standard time on the Internet network (2) through the communication module (3), transmits the standard time to the time base module (1) for time correction, obtains weather information on the Internet network (2) in real time, stores the weather information in the storage unit (7) and displays the time and the weather information through the display module (4).\nB: Disclosed is a security operation and maintenance monitor, comprising a monitoring host (1), an operation host (7) and a display (8), wherein a video monitoring system (2), an access control management system (3), a voice intercom system (4), a theft prevention alarm system (5) and a tailing prevention door system (6) are arranged at a terminal of the monitoring host (1); the operation host (7) is arranged at the front end of the monitoring host (1); the display (8) is arranged at a terminal of the operation host (7); a power supply module (11) is arranged at external ends of the monitoring host (1) and the operation host (7); and a wireless gateway (9) and a wireless communication network (10) are respectively arranged between the monitoring host (1) and the operation host (7). The security operation and maintenance monitor can achieve real-time online monitoring and safety management for network monitoring cameras, storage devices, alarm hosts (including protection area monitoring), access control systems (door opening and closing), intercom devices, etc. in the system, and can quickly lock a problem device and visually reflect same on an interface of the system so that problems are discovered in a timely manner.\nC: An automatic smog control and air management and control system of Internet of Things comprises a purification host, a data host, a smog control host, and a software platform server. The purification host is an air purifier and comprises a power supply module, the purification host is connected to the smog control host, and the power supply module supplies power for the purification host and the smog control host. The smog control host comprises a smog sensing module, a sound-light alarm module, and a local area network module, and the smog control host controls the operation of the purification host; the smog control host is further provided with an identification interface. The data host comprises a display screen, a local area network communication module, and an Internet module, the local area network communication module being connected to the local area network module of the smog control host, and the Internet module being connected to the software platform server. The present invention has the features of real-time monitoring and abundant data, can give a sound-light alarm and automatically purify the air under corresponding situations, can further provide comprehensive information to the smog control and environmental management department for ease of management and treatment, and finally can deal with emergent and sudden conditions regarding the air.\nD: A GIS-based remote distributed monitoring system, comprising a central server, a substation server, a communication module, a positioning module, a display module, a central memory, a substation memory, a GIS module and a front-end monitoring device. The central server receives data of the positioning module and the front-end monitoring device, and stores the data into the central memory. The substation server receives the data of the positioning module and the front-end monitoring device in an affiliated monitoring area, and stores the data into the substation memory. The positioning module and the communication module are mounted on the front-end monitoring device separately. The display module is configured to input a command, and display called information in the central server. The GIS module calls position information in the central server, and displays the position information on an electronic map dynamically. By means of the two-stage structure design of a monitoring center and a monitoring substation, the safety redundancy of a system is improved, and the distribution situation of a front-end monitoring device is visually displayed using a GIS module.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present application is a remote control, comprising: an infrared-emitting diode that emits an infrared signal; a microwave signal-emitting antenna that emits a microwave signal; a microwave-generating circuit that modulates the microwave signal; a control circuit; a button that responds to the touch of a user and converts the touch into an electrical signal; and a printed substrate, wherein the infrared-emitting diode, the microwave signal-emitting antenna, the microwave-generating circuit, the control circuit and the button are all provided on the printed substrate.\nA: A scanning control method, a millimeter wave radar, a movable platform, and a storage medium, wherein the method is applied to the millimeter wave radar, the millimeter wave radar comprises a first transmit antenna (11), a second transmit antenna (12), and a radio frequency (RF) front-end circuit (13) electrically connected to the first transmit antenna (11) and the second transmit antenna (12), the method comprises: controlling the RF front-end circuit (13) to drive the first transmit antenna (11) so that the first transmit antenna (11) emits a first microwave signal; and controlling the RF front-end circuit (13) to drive the second transmit antenna (12) so that the second transmit antenna (12) transmits a second microwave signal, wherein the distance and width range detected by the first microwave are different from the distance and width range detected by the second microwave signal. Coverage of different detection distances and width ranges is achieved in a set of radar system, thereby reducing the design cost of the radar system and optimizing the performance of the radar system.\nB: An infrared emission structure (11), infrared remote control, and infrared remote control method. The infrared emission structure (11) comprises: multiple infrared emitters (111), located in multiple positions of an infrared remote control and configured to cyclically emit an infrared code according to a preset sequence; a controller (112), provided inside the infrared remote control, connected to the multiple infrared emitters (111), and configured to control the multiple infrared emitters (111) to cyclically emit the infrared code; and a feedback module (113), connected to the controller (112), and configured to acquire control feedback information from a controlled apparatus of the infrared remote control and send the control feedback information to the controller (112), such that the controller (112) controls the multiple infrared emitters (111) to stop cyclical emission of the infrared code according to the control feedback information. The above technical solution achieves multi-directional operation control of an infrared remote control, reduces instantaneous power of code emission of the infrared remote control, reduces energy consumption, avoids repeated responses of electrical equipment when repeatedly receiving control information, and increases utility of the infrared remote control.\nC: Disclosed are a microwave radar (10, 202, 60, 702) and an unmanned aerial vehicle (20, 70) having the microwave radar (10, 202, 60, 702). The microwave radar (10, 202, 60, 702) comprises: an antenna device (102, 222, 602, 722) for transmitting a microwave transmitting signal and/or acquiring a received signal, wherein the microwave transmitting signal and the received signal are both of a trapezoidal modulation waveform, and one period of the trapezoidal modulation waveform comprises a frequency rising section, a frequency falling section and a fixed frequency section; and a radar controller (104, 224, 604, 724) in communication connection with the antenna device (102, 222, 602, 722), wherein the antenna device (102, 222, 602, 722) sends an intermediate-frequency signal to the radar controller (104, 224, 604, 724) that is obtained by carrying out frequency mixing on the frequency of the microwave transmitting signal and that of the received signal, and the radar controller (104, 224, 604, 724) determines whether the received signal is an interference signal according to the intermediate-frequency signal. According to the microwave radar (10, 202, 60, 702), there is no need to artificially and strictly control the time when each microwave radar transmits a signal, so that the implementation is simpler and more convenient, and an application range is wider.\nD: An electronic atomizing apparatus and a microwave control method therefor. The electronic atomizing apparatus comprises: an atomizing cavity used for accommodating an aerosol generating substrate; a microwave generating circuit used for generating a microwave according to a preset microwave frequency; a microwave transmitting antenna used for transmitting the microwave; a feedback collecting circuit used for collecting a feedback signal corresponding to the microwave of the preset microwave frequency transmitted by the microwave transmitting antenna; and a microwave control circuit, which is connected respectively to the microwave generating circuit and to the feedback collecting circuit. The microwave control circuit is used for determining the preset microwave frequency, and controlling the microwave generating circuit to generate the microwave according to the preset microwave frequency. The microwave control circuit chooses, on the basis of the feedback signal, to maintain the microwave transmission frequency or to correct the preset microwave frequency. The microwave is used for directly heating the aerosol generating substrate, and the microwave transmission frequency is adjusted by means of a frequency sweep, the heating efficiency is high, and the service life of a device is extended.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a home intelligent control terminal, comprising a main controller, a wireless communication module, a touch display screen, a nonvolatile memory, an operation feedback module, and a computer program. The wireless communication module, the touch display screen, and the nonvolatile memory are respectively connected to the main controller; the computer program is stored in the nonvolatile memory and is operated by the main controller, and the computer program can be executed to implement a software defined remote control key. According to the software defined remote control key in the present invention, the keys of a remote controller of various different electric appliances/apparatuses are freely combined, the frequent switching of the remote controllers when multiple remote controllers are used at the same time is avoided, and the problem that multiple remote controllers are integrated is solved; and multiple operation feedback devices are added in a hardware design at the same time while removing physical keys, and key use experience of a physical key remote controller is simulated.\nA: Disclosed is a motor vehicle control system. The motor vehicle control system comprises a motor vehicle (1) and a remote controller (2). The motor vehicle (1) is provided with at least one vehicle control button, the motor vehicle (1) comprises a vehicle control circuit board (10) and a traveling system (103), the remote controller (2) is provided with at least one remote controller control button (21), and the remote controller (2) comprises a remote controller circuit board (20). The vehicle control circuit board (10) at least comprises a first wireless communication module, the remote controller circuit board (20) at least comprises a second wireless communication module, the first wireless communication module and the second wireless communication module establish wireless communication connection and are used for transmitting a remote control instruction triggered by the remote controller control button (21), and positioning and distance measurement are also performed between the first wireless communication module and the second wireless communication module. The system improves the manner of vehicle control, and enables a user to obtain a better customer experience.\nB: The present invention relates to a multi-functional long-distance wireless ignition remote control method based on a wireless ignition remote controller. A keypad of a remote controller comprises a master address code selection key, a slave address code selection key and a receiver type selection key. The remote control method comprises: allocating an address code protocol to each receiver: selecting a receiver through the receiver type selection key of the remote controller, and selecting a slave address code and a master address code through the slave address code selection key and the master address code selection key; and making the receiver enter a learning state, the remote controller sending an address code allocated to the receiver, the receiver saving the address code after receiving the address code, and at this moment, a wireless connection relationship having been established between the receiver and the remote controller. The present invention can respectively control multiple models of and as many as tens of thousands of different wireless ignition receivers simultaneously, and an operation only needs to be performed on an operation panel of a remote controller, so that different wireless ignition receivers can be controlled.\nC: Embodiments of the present application provide a remote control device and a remote control method. The remote control device can be in a communication connection with a terminal device, and the remote control device comprises a main control module, a Bluetooth module and multiple touch-control keys, wherein the main control module, the Bluetooth module and the touch-control keys are connected to each other; the Bluetooth module is used for establishing a communication connection with the terminal device, receiving an adjustment instruction of the terminal device for control parameters of the touch-control keys, and sending the adjustment instruction to the main control module; and the main control module is used for adjusting the control parameters of the touch-control keys according to the adjustment instruction. By means of the arrangements, the control parameters of touch-control keys can be correspondingly adjusted according to an instruction of a terminal device, so as to achieve control over different smart homes. In this way, control parameters of touch-control keys can be changed, and control methods are more flexible and diverse.\nD: An interface display method, device and terminal. The method comprises: acquiring a front face image of an original remote controller (S102); obtaining a key layer by capturing a key area in the front face image, and saving remaining images as a remote controller interface layer (S104); defining various keys in the key layer and corresponding functions thereof (S106); and superposing and synthesizing the key layer and the remote controller interface layer, and displaying same in a universal remote controller interface (S108). The problem in the related art that a universal remote controller interface cannot perform an adaptive adjustment according to different terminal models is solved, which falls within the technical field of image recognition and software, and facilitates rapidly forming the customization, differentiation and accuracy of a universal remote controller remote control interface of an intelligent terminal, so that a user obtains the most direct remote control experience by using the universal remote controller of the intelligent terminal.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is an intelligent guiding device and a visualised method for guiding the blind, the intelligent guiding device comprising a detection mechanism (1), a microprocessor controller (3), an image toucher (5) and indicating devices (71, 72, 73, 74); the detection system (1) comprising camera devices (11, 12, 13) and ultrasonic detectors (14, 15, 16, 17); the microprocessor controller (3) being connected to the camera devices (11, 12, 13), the ultrasonic detectors (14, 15, 16, 17), the image toucher (5) and the indicating devices (71, 72, 73, 74); the camera devices (11, 12, 13) being used for collecting monochrome images of the scene in front; the microprocessor controller (3) performing an extraction from the monochrome images so as to obtain signals of object contours, and then converting the same into serial signals, which are then outputted to the image toucher (5); the image toucher (5) converting the serial signals into mechnical tactile sense signals and sending out stimulation of touching pins; the ultrasonic detectors (14, 15, 16, 17) being used for measuring information on the location of the objects around; the microprocessor controller (3) processing the information on the location of the objects so as to obtain the distance to the objects and a direction which safely avoids them, and sending the same to the indicating devices (71, 72, 73, 74); and the indicating devices (71, 72, 73, 74) being used for indicating the distance to the objects and the direction which safely avoids them. The visualised method for guiding the blind comprises the following steps: 1. taking a monochrome image, and making a contour extraction from the monochrome image so as to obtain signals of the object contours; 2. converting the signals of the object contours into serial signals and sending the same to the image toucher (5), where the image toucher (5) converts the serial signals to mechanical tactile signals and sends out stimulation of touching pins, allowing the blind to feel the shape of the objects by touching.\nA: The embodiment of the present invention relates to the field of acquiring a contour of an object. Disclosed are a method of acquiring a contour of an object, an image processing method and a computer storage medium. The method comprises: acquiring images of an object at different lighting angles to obtain a plurality of images of the object; using a positional relationship among contours and shadows of the object in the plurality of images of the object to calculate depth information of the contour of the object. The embodiment of the present invention can acquire a contour of an object with high precision quickly.\nB: A method and device for object recognition, a data processing device, and a computing device, related to the technical field of computer visuals. The method comprises: receiving an image (302); locating key points for an object in the image, acquiring two or more key points of the object, and acquiring position information of each key point of the two or more key points, the position information comprising position coordinates and a visibility state (304); extracting global features of the object in the image, and extracting local features of the object from where the key points are in the image on the basis of the position information (306); combining the global features of the object and the local features extracted from where the key points are for object recognition so as to acquire the recognition result for the object (308). Recognition effects for the object are increased.\nC: An ultrasonic detection imaging method, comprising the following steps: step 1, driving, by a stepping motor, a collapsible multi-level rotary ultrasonic probe, transmitting, by an ultrasonic probe of the collapsible multi-level rotary ultrasonic probe, an ultrasonic signal, and collecting an ultrasonic echo detection signal and transmitting same to a detection host; step 2, conducting, by a signal processing module, positioning calculation on position information about the ultrasonic probe, and transmitting the position information to the detection host; step 3, imaging, by the detection host, the picked ultrasonic echo detection signal, and according to the position information, conducting image splicing, so as to obtain an image of an object under detection; and step 4, displaying, by an image display, the image. A device for achieving the ultrasonic detection imaging method, comprising a suction cup, an image display, a detection host, a power source module, a signal processing module and a collapsible multi-level rotary ultrasonic probe. The device has the advantages of being simple to install, easy to operate and convenient to control, and has high accuracy, etc.\nD: A wearable smart guide system (1000), comprising headphones (1300) and a wearable smart guide apparatus (1100), the wearable smart guide apparatus (1100) comprising a first switch (1113), a first power source module (1101), a first controller (1102), an image acquisition module (1103), an image recognition module (1104), a voice recognition module (1106), a mobile communication module (1108), a first wireless communication module (1109), a GPS positioning module (1110) and a distance detection module (1111). The wearable smart guide system (1000) also comprises a remote controller (1200), the remote controller (1200) comprising a second switch (1205), a second power source module (1201), a second controller (1202), a second wireless communication module (1203) and a first button (1204), and a wearable carrier (1112) is arranged on the wearable smart guide apparatus (1100). Via the split structure of the wearable smart guide apparatus (1100), the remote controller (1200) and the headphones (1300), the wearable smart guide system (1000) facilitates carrying and controlling by a blind person, so as to provide the blind person with a safe and easy way of travelling.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stroke learning and correcting method and system. The stroke learning and correcting method comprises the steps of: S11, detecting in real time whether a Chinese character which a user has selected to practice has been received, and if yes, moving on to step S12; S12, acquiring the strokes of the Chinese character currently being written; and S13, determining whether the strokes of the Chinese character currently being written are correct, and if not, automatically displaying the correct strokes. When writing a Chinese character, a user can promptly learn whether the strokes currently being writing are correct, thus visually and conveniently learning stroke mistakes, and improving the practice effect and writing skills of Chinese characters.\nA: Disclosed are a Chinese character simple stroke input method and a Chinese character simple stroke search method. Chinese character strokes are divided into several simple strokes without a salient point, and simple stroke feature information of a Chinese character is formed by the total number of the simple strokes, stroke types of the simple strokes, the stroke type of the simple strokes at a specific part, and the stroke number of different types of simple strokes. A correspondence is established between the simple stroke feature information and a corresponding input component on an input device, to implement input of Chinese characters. A Chinese character database is established according to the simple stroke feature information, thereby implementing search of Chinese characters. The present invention simplifies complex Chinese strokes, so that when inputting Chinese characters, a user does not need to memorize much basic knowledge such as complex rules, keyboard code correspondences and character roots, and therefore, people from both China and other countries can easily grasp the method. In addition, as the user may input the simple stroke feature information of the Chinese character in any sequence and combination, the operation is simple and convenient.\nB: A writing scoring system determination method, a system and an apparatus, the method comprising the following steps: S1: acquiring an external writing action; S2: according to the writing action, calculating a writing path; S3: displaying the writing path; S4: deciding whether a completed writing action has been received, and if so, performing scoring according to the writing path; if not, returning to S1. In the present writing scoring system determination method, system and apparatus, a means of deciding that writing is complete has been changed from a time-based determination mode to an action-based determination mode, decreasing human-machine interaction time and improving user experience; using a specified action for completion determination prevents wrong operations such as a system responding early because writing was too slow.\nC: Disclosed is a multi-character continuous handwriting input method. A character is written on a touch unit; after character number i is written, character number i+1 is written overlappingly over character number i. When a user is writing, a determination is made whether the current stroke belongs to character number i or to character number i+1. When the user is determined to have started writing overlappingly character number i+1, the display color of character number i is dimmed automatically; this facilitates clear tracking by the user on a display screen of the self-written strokes of the new character. In the method, multiple characters are written continuously without pauses; when character number i+2 is being written, character number i disappears automatically from the display screen, and the color of character i+1 is dimmed automatically. The present invention obviates the need for the user to pause before writing a different character, and allows for the continuous writing of multiple handwritten characters on a handwriting screen, and for the corresponding recognition and display processes, thereby improving greatly the efficiency of handwritten text input.\nD: An encryption and decryption method for a terminal and a terminal. The method comprises: collecting the handwriting input information inputted when a user performs the encryption, and storing the handwriting input information as an encryption password, wherein the handwriting input information includes inputted Chinese characters, stroke order of the inputted Chinese characters, and handwriting style characteristics; collecting the handwriting input information inputted when the user performs the unlocking, and determining whether the handwriting input information inputted when the user performs the unlocking is consistent with the encryption password or not, and if yes, the unlocking succeeds, or otherwise the unlocking fails. The above technical solution combines three handwriting recognition modes of the inputted Chinese characters, the stroke order of the inputted Chinese characters, and the handwriting characteristics so as to determine whether the password is correct or not, and the technical solution has the greater security than the related techniques such as unlocking pin codes and unlocking patterns, can protect the private information of the user better, and improve the reliability of the terminal encryption.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA double-layer dumb drum that has a sanding belt adjustment function, comprising an upper-layer elastic body, a striking edge strip, an upper base plate, a sanding belt adjusting device, an inner resonance cavity, an outer resonance cavity, a lower-layer elastic body, and a lower base plate. The upper-layer elastic body is fixed above the upper base plate, the inner resonance cavity and the outer resonance cavity are disposed below the upper base plate, the sanding belt adjusting device is disposed in the inner resonance cavity, and a lower part of the inner resonance cavity is sealed by means of the outer resonance cavity; the lower-layer elastic body is fixedly connected above the lower base plate, several contact points are disposed below the outer resonance cavity, and the outer resonance cavity abuts with an upper part of the lower-layer elastic body by means of the contact points; and the upper base plate and the lower base plate are connected and fixed one to the other by means of several connection screws. In using the double-layer dumb drum, the feel and hitting speed may not only be practiced, but the sanding belt may also be adjusted and the sound of an actual snare drum may be simulated, so that beginners may experience the sound effect of a real snare drum when practicing on the dumb drum, thus feeling the sound effect of a real snare drum in advance and speeding up the learning process.\nA: A robot protection device having an anti-collision function, comprising a protection device body (1). A bottom plate (2) is connected below the protection device body (1); a retractable arm (15) is mounted on the lower bottom surface of the bottom plate (2); the tail end of the retractable arm (15) is provided with a sensor (16); a support palm (17) is fixed below the sensor (16); a clamping seat (3) is provided above the bottom plate (2); a base (4) is embedded in a surface of the clamping seat (3); an elastic column (8) is connected above the base (4); a connecting rod (7) is fixed on a surface of the elastic column (8); a force bearing plate (5) is welded on the other end of the connecting rod (7); a surface of the force bearing plate (5) is provided with a silicone pad (6); a movable plate (9) is mounted on the right side of the elastic column (8); two ends of the movable plate (9) are connected to rolling shafts (14). The robot protection device having an anti-collision function is provided with an anti-falling means, falling of a robot can be sensed in advance, and the robot can be supported to be prevented from being damaged due to falling to the ground.\nB: A cajon has a frame (1) formed by four edgings, namely, an upper edging (11), a lower edging (12), a left edging (13), and a right edging (14). A striking surface (10) is fixedly disposed on the frame (1). Front ends of a left side plate (4) and a right side plate (5) are separately hinged on the left edging (13) and the right edging (14) of the frame (1). Front ends of an upper side plate (2) and a lower side plate (3) are separately connected to the upper edging (11) and the lower edging (12). Guide posts (22, 32, 42, 52) disposed on rear ends of the upper side plate (2), the lower side plate (3), the left side plate (4), and the right side plate (5) are separately inserted into guide holes (220, 320, 420, 520) disposed on corresponding positions on a rear plate (6). Screw guide blocks (7) are separately disposed on surfaces facing the inside of a box, of the upper side plate (2) and the lower side plate (3). Screw guide holes (70) are arranged on the screw guide blocks (7). Screws (8) pass through rear board screw guide holes (600) and the screw guide holes (70) arranged on the screw guide blocks (7) are connected inside nut guide holes (111, 121) in a screw manner, so that the screws (8) connect the rear plate (6), the upper side plate (2) and the frame (1), and the screws (8) connect the rear plate (6), the lower side plate (3) and the frame (1). A military drum type snare facing the striking surface (10) is hinged on the lower edging (12). Disassembly, assembly, transportation and carry of the cajon are more convenient, and sound effect and tone quality are various.\nC: An anti-collision robot, comprising a protection device body (1). A bottom plate (2) is connected below the protection device body (1); a retractable arm (15) is mounted on the lower bottom surface of the bottom plate (2); the tail end of the retractable arm (15) is provided with a sensor (16); a support palm (17) is fixed below the sensor (16); a clamping seat (3) is provided above the bottom plate (2); a base (4) is embedded in a surface of the clamping seat (3); an elastic column (8) is connected above the base (4); a connecting rod (7) is fixed on a surface of the elastic column (8); a force bearing plate (5) is welded on the other end of the connecting rod (7); a surface of the force bearing plate (5) is provided with a silicone pad (6); a movable plate (9) is mounted on the right side of the elastic column (8); two ends of the movable plate (9) are connected to rolling shafts (14). The anti-collision robot is provided with an anti-falling device, falling of the robot can be sensed in advance, and the robot can be supported to be prevented from being damaged due to falling to the ground.\nD: A flat disc six-dimensional force sensor based on an eddy current effect, a detection method, and a smart device, the force sensor comprising: an outer shell (1), an elastic body (2), a first probe (3), a second probe (4), a third probe (5), and a fourth probe (6), the elastic body (2) being arranged inside the outer shell (1), the elastic body (2) comprising a bottom plate, a detection plate (202), and a first boss (201), support columns (209) being arranged between the bottom plate and the detection plate (202), the detection plate (202) being positioned above the bottom plate, the first boss (201) being arranged above the detection plate (202), a sink (206) being arranged on the lower surface of the detection plate (202), the first probe (3), the second probe (4), the third probe (5), and the fourth probe (6) respectively being uniformly distributed on the bottom plate and not being in contact with the detection plate (202), and the first probe (3), the second probe (4), the third probe (5), and the fourth probe (6) being capable of sensing the amount of deformation and the direction of deformation of the elastic body (2) by means of the current exciting eddy current magnetic field changes. The present force sensor has the characteristics of having a small volume and strong bearing capacity and being interference-resistant, and the force measurement range and accuracy of the sensor can be adjusted directly from the machine body, being highly flexible.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA music box using a punched tape, comprising a base (1) and a sound production piece (2) disposed on the base (1). The music box further comprises: a first roller (3) which is provided with pinch rollers (4), wherein the first roller (3) is disposed on the base (1); a second roller (5) which is disposed on the base (1); spacers (17) which are provided on the second roller (5), wherein the surfaces of the pinch rollers (4) and the spacers (17) together limit a punched tape when the punched tape passes through a space between the first roller (3) and the second roller (5), and the spacers (17) and the second roller (5) together form at least one gear slot (18); a toothed gear (6) which comprises at least three teeth (601), wherein the toothed gear (6) is rotatably fitted in the gear slot (18), and the tooth (601), driven by a hole on the punched tape, rotates the toothed gear (6) with respect to the second roller (5) and flicks the sound production piece (2) to produce a sound. According to the music box having said structure, the pinch rollers on the first roller and the spacers together limit the punched tape, and another tooth of the toothed gear flick the sound production piece to produce a sound. Thus, the sound production of the music box is controlled by the punched tape, and the music box plays different tunes by means of changes of the hole configuration on the punched tape.\nA: A hand-cranked music box comprising a housing, a sound cylinder (8) provided with multiple protrusions, and, fitted with the sound cylinder (8), a transmission gear (6) and sound plates (7), also comprising a crank handle (3) provided with a drive gear (31) that is meshed with the transmission gear (6), a fixing frame (4), and a fixing element (5) fittingly fixed with one extremity of the sound cylinder (8) onto the fixing frame (4), where the transmission gear (6) is fittingly fixed with the other extremity of the sound cylinder (8) onto the fixing frame (4). Because the sound cylinder (8) is fixed within the housing by fitting the fixing element (5) with the fixing frame (4) and by fixing the transmission gear (6) with the fixing frame (4), damages due to being squeezed are prevented. One extremity of the sound cylinder (8) is fixed with the transmission gear (6), when the crank handle (3) is cranked, the drive gear (31) drives the transmission gear (6), the transmission gear (6) drives the sound cylinder (8) into rotation, the protrusions on the sound cylinder (8) generate vibrations with the sound plates (7) to generate sounds, thus producing music.\nB: A machine core of a packing machine. A delivery and returning belt and dragging belt device of the machine core comprises a first roller (1) and a second roller (2). The second roller (2) is controlled by a control mechanism to move to a first matching state with the first roller (1), and to move out of the first matching state with the first roller (1) to a second matching state. The first roller (1) is connected with a first transmission gear (10) capable of driving the first roller (1) to rotate. The second roller (2) is connected with a second transmission gear (20) capable of driving the second roller (2) to rotate. The second transmission gear (20) and the second roller (2) conduct synchronous displacement. The first transmission gear (10) receives power through a gear transmission mechanism to drive the first roller (1) to rotate. The second transmission gear (20) receives power through the gear transmission mechanism. The second transmission gear (20) moves into a first gear matching state with a gear transmitting the power to the second transmission gear (20) through the displacement, and moves out of the first gear matching state. The machine core has a simple structure, is capable of reducing failure rate, and has a good packing effect. In addition, the binding force, the length of belt delivery, the temperature, and the ironing connection delay of the machine core can be adjusted through a potentiometer.\nC: A tensioning device for automobile production, comprising a base (1), wherein a first support post (2) is fixedly connected to an upper surface of the base (1), a second support post (3) is fixedly connected to the upper surface of the base (1), and a third support post (4) is fixedly connected to the upper surface of the base (1); a first through hole (6) is opened at a middle part of one side of the first support post (2); the first support post (2) and first rollers (5) are movably connected by means of the first through hole (6); a gap is retained between the first rollers (5); and a top part of the first support post (2) is provided with a lever (7). The described tensioning device for automobile production is provided with the lever (7), and a weight block (12) is added to one end of the lever (7) so that the tensioning device may automatically tighten. By means of being provided with the weight block (12), the degree of tightness of the tensioning device may be changed by means of changing the weight of a placed article. By means of being provided with a gear (18) and racks (14, 17), the effect of manually adjusting the degree of tightness of the tensioning device may be achieved.\nD: A mutually restrictive safe multi-drawer locking device, comprising a guide groove (1), a first sliding part (2) and a plurality of second sliding parts (3) that are slidingly arranged in sequence within the guide groove (1) and wedge blocks (6) arranged on the front portions of the side faces of drawers. The guide groove (1) is arranged on the front portion of the side faces of the drawers on multiple layers in the sliding direction and extends from the drawer on the top layer to the drawer on the bottom layer, wherein a limiting part is arranged at the lower end of the guide groove (1); the position of the first sliding part (2) corresponds to the drawer on the top layer and comprises a first sliding piece (2-1) and a first roller (2-2) which is rotationally arranged on the first sliding piece (2-1); the positions of the plurality of second sliding parts (3) correspond to the drawers on each layer below the drawer on the top layer respectively, and each second sliding part (3) comprises a second sliding piece (3-1), and a limiting block (3-2) and a second roller (3-3) that are arranged top to bottom on the second sliding piece (3-1), the second roller (3-3) being rotationally arranged on the second sliding piece (3-1). The described locking device has a simple structure and may ensure that one drawer is drawn out at a time, thereby avoiding safety problems such as drawers on multiple layers being drawn out at the same time causing a cabinet to topple over.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA tone generation method for Pythagorean tuning, relating to the field of the modern music industry. An input module (1) is used to input a starting tone frequency, the number of descending tones and the number of ascending tones. Then, corresponding tone values are calculated by means of a processing and calculation module (2), and are then outputted by means of an output module (3). A sound output unit in the output module (3) uses various musical instruments to play an obtained tone sequence, thereby facilitating use by music practitioners.\nA: A simulation device for a bowed string instrument, the simulation device for a bowed string instrument comprising a string (11); a conversion module (21), which is connected to the string and which is used for converting mechanical vibrations of the string (11) into a sound signal; a sound emitting device (31), which is connected to the conversion module (21) and which is used for receiving the sound signal and emitting the sound of a bowed string instrument corresponding to the sound signal. The simulation device for a bowed string instrument converts mechanical vibrations of the string (11) into a sound signal by means of the conversion module (21), receives the sound signal by means of the sound emitting device (31) and emits the corresponding sound of a bowed string instrument; since only a low-cost string is required to produce mechanical vibrations and since the corresponding sound of a bowed string instrument may be obtained by means of the mechanical vibrations, the present invention avoids the problem wherein a high-cost string is required in traditional bowed string instruments in order to produce high sound quality, and thus the same sound quality as a traditional bowed string instrument maybe obtained at a lower price.\nB: A musical instrument DIY component, comprising a fixing component (1), a cavity component (2), an intracavity component (3) and a string handle component (4), and also comprising several strings. The cavity component (2) comprises a wooden panel (21), a base plate (22) and a side plate component (23). The intracavity component (3) comprises a wooden jacking force block (31), a bottom force block (32) and a surrounding edge component (33). A musical instrument DIY component and a corresponding assembling method for the musical instrument DIY component can assemble a new musical instrument having functions of a toy musical instrument and a playing musical instrument, which can achieve a melody effect of a conventional playing musical instrument when used as the playing musical instrument, are particularly suitable for rudimentary teaching in the playing of the musical instrument, help a beginner get familiar with the structure of the musical instrument in the assembly process, and greatly improve and develop the beginner's interest in learning.\nC: A voice interactive recognition control system, comprising an audio signal acquisition module (1), an emotion recognition and determination module (2), a voice intelligent generation module (3), a voice output module (4), a control module (5) and a wireless transceiving module (6) connected to one another. The audio signal acquisition module (1) is used for acquiring and filtering external input voice information; the emotion recognition and determination module (2) is used for performing emotion recognition according to the external input voice information and determining a grammatical sense and an emotion category of the input voice; the voice intelligent generation module (3) is used for generating corresponding response voice information according to the grammatical sense and the emotion category of the input voice and sending the response voice information to the voice output module (4) or the control module (5); and the control module (5) is used for sending a control instruction to a corresponding intelligent device according to the received response voice information. Humanized control to the intelligent device is achieved by means of voice interaction.\nD: A voice evaluation method for evaluating language pronunciation of a user in a language learning process, comprises the following steps: step S101, acquiring a voice input of a user through a voice recording device of a voice evaluation apparatus; step S102, dividing basic voice units of the recorded voice to obtain a sequence of voice units of the recorded voice; step S103, extracting a characteristic of the sequence of voice units, and acquiring temperament characteristics of the sequence of voice units; step S104, respectively comparing the extracted temperament characteristics with a teaching example voice and a standard voice predicted by a voice prediction model to make an analysis; and step S105, marking a voice comparison result on a voice text of the user.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA control apparatus for a switch. The control apparatus is fixed on a housing (100). The control apparatus comprises a button (300) matching a switch (410) in the housing (100). The control apparatus also comprises a partition (350) provided between the button (300) and the switch (410). The housing (100) is provided with a switch opening (121) corresponding to the switch (410). The partition (350) fits a sidewall surrounding the switch opening (121) and seals the switch opening (121). The button (300) is provided with a trigger point (310) arranged at the position of the switch opening (121). The trigger point (310) is smaller than the switch opening (121). A pressing force is applied on the button (300); the trigger point (310) is abutted against the partition (350) to distend the partition (350) to trigger the switch (410). When the force transmitted by the button (300) is applied on the partition (350), a part of the force acts on the sidewall surrounding the switch opening (121), while a part of the force is used in triggering the switch (410). As such, if the pressing force is too weak, then the partition cannot be distended and thus the switch cannot be triggered, thus preventing the switch from being triggered due to the button being touched inadvertently and preventing misuse.\nA: A wake-up lamp, comprising a housing (100), a light-transmitting member (200) and a display control module (300), wherein the housing (100) has a first light-transmitting region; the light-transmitting member (200) and the display control module (300) are both arranged in the housing (100); the light-transmitting member (200) is located between the display control module (300) and the first light-transmitting region; the surface of the light-transmitting member (200) facing the display control module (300) or the surface of the light-transmitting member (200) facing the first light-transmitting region is provided with a key pattern (210); the surface of the display control module (300) opposite the light-transmitting member (200) is provided with a first light-emitting member (310) and a touch switch (320); the touch switch (320) is electrically connected to the first light-emitting member (310); and when the touch switch (320) is triggered, light emitted by the first light-emitting member (310) irradiates the light-transmitting member (200), so as to project the key pattern (210) onto the first light-transmitting region. This solution can solve the problem that an existing wake-up lamp has a poor appearance due to dark spots exist in a housing of the wake-up lamp.\nB: Disclosed in the present application is a mouse. The mouse comprises a bottom plate, a housing and keys arranged on the housing, wherein the keys comprise a left key and a right key, and a roller is arranged between the left key and the right key; a trigger switch is arranged on the bottom plate in a position corresponding to the keys; a first clamping hook is arranged on bottom surfaces of the keys; a base is arranged on the bottom plate, a regulating column is arranged above the base, and a boss is arranged on a side surface of a top end of the regulating column; a spring is sleeved on the regulating column, and the top end of the regulating column passes through a through hole on the housing that is used for accommodating the regulating column; and the boss at the top of the regulating column is engaged with the first clamping hook on the bottom surfaces of the keys, and the spring is compressed between the housing and a bottom end of regulating column such that the rebound height of the keys is limited. The mouse of the present application is convenient for a user to control the hand feeling of the keys of the mouse.\nC: Disclosed are an accidental-shutdown-proof switch control apparatus and method for a robot-assisted surgical device. The control apparatus comprises: a startup/shutdown key, wherein the startup/shutdown key is used for triggering a startup/shutdown action; a system power module, wherein the system power module is used for connecting to a power supply to supply power to power utilization modules of a robot-assisted surgical device; a startup/shutdown control module, wherein the startup/shutdown control module is used for detecting a shutdown action of the startup/shutdown key and acquiring a shutdown intention by means of manual interaction; and a startup/shutdown hardware circuit, wherein the startup/shutdown hardware circuit is used for detecting a startup action and controlling the system power module to start supplying power, and the startup/shutdown hardware circuit controls the system power module to stop supplying power when simultaneously detecting two signals, i.e. a shutdown action and a shutdown control signal sent by the startup/shutdown control module. The control apparatus can reduce, despite the cost barely being increased, the probability of a system software and hardware fault or a manual misoperation possibly causing an accidental shutdown, thereby further improving the reliability of the operation of a device.\nD: A key device (200), comprising a touch component (3) and a switch (1) provided underneath the touch component (3), wherein the touch component (3) is used for outputting a touch signal according to a touch action, and when the touch component (3) is pressed, the subjected pressure can be conducted to the switch (1) and a pressing signal is output. Also related is a terminal (100) applying the key device (200) and a key device (200) manipulation and control method. In the key device (200) and the terminal (100), the function of a mechanical key can be realized by a switch (1), so as to avoid an erroneous touch, and the touch component can realize a relatively flexible touch control and simultaneously have two control functions, namely, a touch function and a mechanical key function.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA karaoke singing grading method, which relates to the field of communications. The method comprises: collecting karaoke singing data of a user (101); and performing grading by comparing the data with original sounds (102). The method has the advantage of capable of grading a user singing in the form of karaoke.\nA: An information processing method and apparatus based on reinforcement learning, and a device and a storage medium, wherein same relate to the technical field of artificial intelligence data analysis. The method comprises: acquiring original data and pre-processing the original data to obtain sample data (S1); acquiring a target value, extracting an actual value from the sample data, and inputting, as parameters, the target value and the actual value into a preset reward and punishment function for calculation to obtain a score weight of the actual value (S2); acquiring a plurality of pieces of alternative scheme data corresponding to the sample data, and obtaining initial scores for the pieces of alternative scheme data after importing the pieces of alternative scheme data and the score weight of the actual value into a reinforcement learning model so as to perform scoring (S3); obtaining final scores for the alternative scheme data after processing the initial scores according to a preset score addition policy (S4); and filtering the pieces of alternative scheme data according to preset service logic, and taking the item with the highest final score in the filtered alternative scheme data as target scheme data of the original data (S5). The speed and accuracy of information processing are improved.\nB: The present disclosure relates to a microexpression recognition-based film and television scoring method, a storage medium, and an intelligent terminal. The method comprises: obtaining a microexpression of a user during watching of a film or television, recognizing and analyzing the microexpression, and outputting an analysis result; obtaining a category of the currently played film or television, and obtaining microexpression data corresponding to the category of the current film or television from a preset microexpression database; and automatically scoring the film or television according to the analysis result and the obtained microexpression data, and outputting a final score. A microexpression of a user during watching of a film or television is analyzed, and the film or television is automatically scored according to change of the microexpression, so that there is no need for the user to manually input a score, a scoring result is more real, and malicious and false scoring is effectively avoided.\nC: A karaoke scoring method comprises: acquiring an articulation time of a singer and an articulation time of an original singer (S100); calculating an articulation delay difference of the singer according to the articulation time of the singer and the articulation time of the original singer (S200); determining, according to the calculated articulation delay difference of the singer, whether a system delays or the singer delays (S300); if the system delays, correcting the articulation time of the singer according to the articulation delay difference of the singer (S400); and comparing the articulation at the corrected articulation time of the singer with the articulation of the original singer, and giving a score (S500). Further provided is a karaoke scoring device. A misjudgment rate of scoring software of the karaoke scoring device is decreased, user experience is improved, and selling points of the karaoke scoring device are increased.\nD: A method and a system for evaluating an agent on a real estate website, said method comprising the following steps: sending, upon receiving an application from an agent for giving a client a guided tour of a property, an evaluation short message to the mobile phone of the client (S101); and receiving a response short message returned by the client, and grading the agent according to said response message (S102). The method and the system have the advantage of allowing the client to grade the agent, so as to express intuitive feelings regarding their experience", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA motor vehicle and water craft horn, comprising: at least one capacitor (C2) of about 220-10000 μF connected in parallel at the input end of the horn power supply to eliminate electromagnetic interference caused by electromagnetic radiation, conduction, and coupling. Also provided is a method of eliminating motor vehicle and water craft horn electromagnetic interference, an electronic device used on a motor vehicle and water craft, and a motor vehicle and water craft. The present invention solves the problem of ultralimit of conducted emission (CE) and radiated emission (RE) when a motor vehicle or water craft uses a horn for CIRS 25 testing, thus enabling the horn EMC index to meet the standard.\nA: Provided are an intelligent electronic horn and an implementation method therefor. The method includes: detecting one or more of the current operating air pressure, operating temperature and power supply voltage of an electronic horn; according to the detection result, calculating a compensation control parameter; according to the compensation control parameter, performing compensation control on a drive signal of the electronic horn; and driving the electronic horn to sound with the drive signal after the compensation control. By detecting the operating air pressure, temperature and power supply voltage of an electronic horn, performing calculations with a pre-established mathematical model according to detected values, and performing compensation control on the frequency and pulse width of a drive signal of the electronic horn, the present method allows that the electronic horn can be driven at a signal power which meets the current environment most in the case of varying air pressure and temperature, achieving almost consistent optimal sounding effects under different environmental conditions.\nB: Provided is a motor vehicle giving-way indicator, comprising a controller (1), an indicator, a wireless communication module (2) and a power module. The wireless communication module (2) is installed in the controller (1). The controller (1) is connected with an on-board diagnostic system i.e., motor vehicle OBD system, of the motor vehicle, and the motor vehicle OBD system sends acceleration or deceleration information of the vehicle to the controller (1), so that the controller (1) obtains the driver's driving intention by analyzing the received acceleration or deceleration information. The power of the controller (1) adopts the power of the motor vehicle. The indicator is connected with power module, to obtain electric energy needed for work. The indicator and the controller (1) are connected through the wireless communication module (2), and the controller (1) transmits giving-way information triggering signal to the indicator through the wireless communication module (2), and the indicator prompts an image and a voice. Through the analysis of the driving intention of the driver of the motor vehicle, the indicator transmits the driving intention to a pedestrian or a non-motorized driver in the form of sound and images for the pedestrian and the non-motorized driver to make a decision, thus improving traffic flow and traffic safety.\nC: A boosting device for a non-motor vehicle, and the non-motor vehicle provided with the boosting device. The boosting device comprises a driving motor (1), a transmission module (2), a control module (3), and a power supply (4). The transmission module (2) acts on an edge of a hub of a wheel or a tire of the non-motor vehicle, so that the driving motor (1) for driving the transmission module (2) to work can drive the wheel to rotate by only using a low power, and the driving motor (1) can be a low-power motor of a small size; meanwhile, the power supply (4) for supplying electric energy to the driving motor (1) can also reduce power requirements, so that a low-power battery of a small size can be selected, and accordingly the whole weight of the non-motor vehicle provided with the boosting device is effectively reduced. Furthermore, the boosting device has a simple structure and low manufacturing costs, and is applicable to a variety of non-motor vehicles.\nD: A motor vehicle throttle controlling device; for an electronic throttle, a main piece (11) of a motor vehicle hand throttle device is designed and manufactured, and is provided with a movable element (3) thereon; a restriction mechanism is provided on the motor vehicle hand throttle device such that the movable element (3) can move only on the main piece (11) of the motor vehicle hand throttle device; the main piece (11) of the motor vehicle hand throttle device is provided with a spring (4) thereon capable of returning the movable element (3) to an original position; the movable end (2) of a displacement transducer (1) engages the movable element (3) of the hand throttle device or engages a manual component; for a non-electronic throttle, the manual component engages a pull wire or a pull rod connected to a throttle plate. The hand throttle device can be used independantly, and can also be used in conjunction with a foot throttle (20) pedal capable of engaging the movable element (3), the movable end (2) of the displacement transducer (1), and the pull wire or pull rod connected to the throttle plate.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a pipeless liquid-cooled heat dissipation system, comprising a heat dissipation device, a pumping device, a water tank and a heat absorption device, wherein the pumping device, the heat absorption device, the heat dissipation device and the water tank are integrally combined and interconnected in a pipeless manner; the interior of the water tank is partitioned into at least two space regions to control the flow direction of a liquid; the water tank is provided with a hole-slot structure; the pumping device is installed in the hole-slot structure and is interconnected with the water tank; the water tank is further provided with and integrally interconnected with the heat absorption device; and the water tank and the heat dissipation device are integrally formed by welding and are interconnected with each other. The pipeless liquid-cooled heat dissipation system in the present invention is integrally designed by means of providing the hole-slot structure, which greatly reduces the area occupied by the liquid-cooled system, and same is convenient for operation and installation and is practical.\nA: A memory liquid-cooling heat dissipation device, a system comprising the memory liquid-cooling heat dissipation device, and a corresponding heat dissipation method. The memory liquid-cooling heat dissipation device comprises a liquid inlet pipe, a connecting pipe, a liquid-cooling block, a liquid outlet pipe and a mainboard; the liquid inlet pipe, the liquid outlet pipe and the liquid-cooling block are fixed on the mainboard; the liquid inlet pipe and the liquid outlet pipe are respectively located at two ends of the liquid-cooling block; a memory slot is also provided on the mainboard and is close to the liquid-cooling block; the liquid-cooling block is composed of a metal block, metal domes arranged at two sides of the metal block and a liquid passageway running through the metal block; the liquid inlet pipe, the liquid passageway inside the metal block and the liquid outlet pipe are in communication through the connecting pipe, thus forming a cooling liquid loop. The memory liquid-cooling heat dissipation device realizes heat dissipation of the memory; meanwhile, as the liquid-cooling block contacts a memory bank only through the metal domes, the memory bank can be inserted and pulled out conveniently without dismantling the liquid-cooling block when the memory bank is maintained, thereby lowering the risk of cooling liquid leakage.\nB: Disclosed is an immersion-type liquid-cooled heat dissipation system, which comprises a liquid cooling module, an oil path circulation device, and a plurality of computing devices to undergo heat dissipation. Each computing device comprises a frame, a control module, a power module, and a computing module. The liquid cooling module comprises a first device slot tank, a second device slot tank, a return flow slot tank, and a flow-equalizing plate. The return flow slot tank is located between the first device slot tank and the second device slot tank, wherein the flow-equalizing plate is disposed in the first device slot tank and the second device slot tank, and the computing devices are disposed on the flow-equalizing plate. The frame is internally provided with a power module accommodating region used for accommodating the power module and a computing module accommodating area used for accommodating the computing module. The frame has a plurality of liquid-through ports for immersion and heat dissipation, and a plurality of flow-equalizing holes are formed on the flow-equalizing plate. Compared to conventional air cooling, the immersion-type liquid-cooled heat dissipation system according to the present invention has a relatively high cooling efficiency, and can greatly improve the flow consistency of the computing devices at different parts in the liquid cooling module.\nC: An integrated intelligent closestool and a self-cleaning device assembly thereof. The closestool comprises a bed pan, a water tank, a first electric heating device, a water pump, a spray nozzle, and a control device. A flushing water channel is provided in an annular basin edge of the bed pan, a first hole is formed in the inner side wall of the annular basin edge and close to one side of the water tank, a second hole is formed in the bottom of the water tank, the first electric heating device is placed in the water tank, the spray nozzle is mounted on the inner side of the annular basin edge by means of the first hole, a pipeline is placed in the flushing water channel and passes through the second hole to communicate a water outlet of a water pump with the spray nozzle, a water inlet of the water pump is communicated with the water tank, and the control device is electrically connected to the water pump and the first electric heating device. The assembly comprises the first electric heating device, the water pump, the spray nozzle, the control device, and a partition plate. The closestool is simple in structure and convenient to manufacture, and can be formed by easily modifying on the basis of an existing closestool.\nD: Provided is a heating device for frozen food, comprising a furnace body, a water tank in communication with the furnace body, and a container for containing food. A spray head in communication with both the furnace body and the water tank is arranged above the container. A first electromagnetic valve or an electric ball valve is arranged on a connecting pipeline between the water tank and the spray head. The spray head is in communication with the upper end of the furnace body, and a second electromagnetic valve is arranged on the connecting pipeline. The water tank is in communication with the lower end of the furnace body, and a third electromagnetic valve is arranged on the connecting pipeline. Water in the furnace body is heated such that steam and hot water coexist in the furnace body. The on-off time of the steam and hot water is controlled by means of the electromagnetic valves on different pipelines, food thus can be heated by steam and hot water using only one heating device.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA system and a method for virtual drug screening for crystalline complexes, comprising a visualization sub-system, an evaluation toolbox sub-system, an AI model management sub-system, a large scale sampling sub-system, a virtual screening sub-system, and a data log storage sub-system. The system begins from a known crystalline complex, and sequentially passes said complex through the visualization sub-system, the evaluation toolbox sub-system, the AI model management sub-system, the large scale sampling sub-system, the virtual screening sub-system, and then recommends a group of candidate compounds that meet requirements. On the basis of the system, the generation of a compound library and subsequent virtual filtering are organically combined. A user need only describe the mode of action of a drug on a protein and the requirements the drug must have, and a group of compounds that meet expectations can be generated. The automated system reduces user intervention and improves development efficiency.\nA: A municipal solid waste treatment and utilization system is formed by eight subsystems: a stacking subsystem A, a smashing and screening subsystem B, a pyrolysis gasification subsystem C, a combustion subsystem D, a hot electron subsystem E, a waste heat recycling and utilization subsystem F, a flue gas treatment and reutilization subsystem G, and a solid slag recycling and reutilization subsystem H. In the process of the system, waste does not need to be treated separately according to classification, and the problems that a large quantity of land is occupied in existing landfill processes and various released noxious and harmful greenhouse gases are emitted into the atmosphere during waste decomposition are solved, and the problem that a large quantity of noxious and harmful substances and smoke like dioxin are emitted to the atmosphere in existing waste incineration processes or existing pyrolysis gasification processes is also solved.\nB: A method for establishing a molecular structure and activity database, comprising: searching a compound database to obtain all compounds related to selected targets, recording relevant information of the compounds, and converting external data into a standardized format according to requirements; checking the data to ensure the accuracy of the data; uploading the checked data to a MongoDB database via a stored temporary file; a user sending a retrieval request to a data retrieval module via an SDK, selecting a specific target according to requirements of the user, and extracting all data including the target; calling a structure-activity analysis module in Jupyter, and according to a core structure inputted by a user and a similarity requirement, performing sub-structure matching and similarity comparison calculations on the structure and structures in the database. The method is suitable for computer-aided drug design and drug screening such as virtual screening, and implements semi-automated data collection and data cleaning to generate a standardized database.\nC: An artificial intelligence application developing system (100), a computer device and a storage medium, belonging to the field of artificial intelligence. Said system (100) comprises: a neural network generation subsystem (101) for constructing, training and verifying a neural network model; a neural network hardware execution subsystem (102) for accepting data input into the neural network model and outputting a result after being calculated by the neural network model; and a deployment subsystem (103) for compiling a neural network model generated by the neural network generation subsystem (101) and then deploying same to the neural network hardware execution subsystem (102). By constructing and training a neural network model by means of the visualized neural network generation subsystem (101), and automatically deploying the trained neural network model to the neural network hardware execution subsystem (102) by means of the deployment subsystem (103) for execution, the present invention can lower the threshold of artificial intelligence application development, and improve the development efficiency.\nD: A data docking method and apparatus, a computer device, and a storage medium. The method comprises: loading docking plugins of subsystems according to a configuration file (S100); sending a data read instruction to the docking plugins (S200); receiving system data obtained from the corresponding subsystems by the docking plugins according to the data read instruction (S300); and uploading the system data to a visualization system, so that the visualization system can read the corresponding system data when executing a visualization operation (S400). The method solves the problem that a plurality of different applications need to be developed in the visualization system for docking with the subsystems due to different protocols and interfaces provided by the subsystems; and during the subsequent maintenance and update of the interfaces of the subsystems, only the docking plugins corresponding to the subsystems need to be updated, so that a heavy workload is reduced and the working efficiency is improved.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for training a neural network for determining a molecule retrosynthesis route, comprises: for a plurality of molecules, when determining retrosynthesis routes of the molecules, using a hierarchical learning concept, dividing a training process, which needs a relatively deep search of a molecule retrosynthesis route, into multiple layers for training, replacing a complete retrosynthesis reaction process with the multiple layers of molecule retrosynthesis routes, and upon the completion of the training of one layer of molecule retrosynthesis route, selecting, by means of a molecular filtering method, representative molecules as starting molecules of the next layer of molecule retrosynthesis route. The present invention can effectively improve the efficiency of searching for a molecule retrosynthesis route, such that accurate molecule cost value information can be extracted more efficiently. In a hierarchical manner, a large amount of calculation overheads caused by determining a molecule retrosynthesis route are greatly reduced, and on the basis of ensuring the accuracy of the molecule retrosynthesis route, the time for determining the molecule retrosynthesis route is reduced.\nA: The present invention discloses a P-type dopant, which is a planar aromatic compound with different numbers of fluorine atoms and cyano groups on the periphery, has the functions of adjusting the lowest unoccupied molecular orbital (LUMO) energy level and effectively increasing the luminous efficiency of the light-emitting layer, and its synthetic route has improved material synthesis efficiency. Furthermore, the present invention discloses an organic light-emitting diode comprising an anode; a cathode; and a light-emitting structure between the anode and the cathode, wherein the material for the hole injection layer of the light-emitting structure is a hole injection material comprising the previously described p-type dopant.\nB: A data management system in drug development process, and a use method therefor, comprising: a user module, a development pipeline management module, a virtual filter module, an AI model management module, a visualization module, and an analysis module. The development pipeline management module separates data of each of a plurality of development pipelines. A preset virtual filter method and a conformation generator are integrated into the virtual filter module. An AI pharmaceutical molecule generation model is integrated into the AI model management module, and AI model training and utilization functions are provided in same. The visualization module represents a data set of each molecule as a circle. The analysis module is used to analyze and record a filter result from the virtual filter module. The method is able to batch filter molecules of approximately an order of magnitude of one million by means of various modeling methods, thus still being able to ensure development efficiency under a condition of a large increase in the order of magnitude of the number of molecules.\nC: Provided is a method for preparing a dicarboxylic acid. The method comprises the following steps: 1) subjecting a raw material system containing a cyclic olefin and a monocarboxylic acid to an addition reaction of by means of an addition catalyst to generate an intermediate product system containing a carboxylic acid cyclic ester; and 2) subjecting the intermediate product system to a ring opening oxidation reaction by means of an oxidative catalyst to generate a corresponding dicarboxylic acid product. The addition reaction in a diacid synthesis route has a high single pass conversation and the corresponding carboxylic acid cyclic ester features good selectivity. In an addition-oxidation synthesis route, the addition reaction and the oxidation reaction both have a high rate, and the corresponding diacid product features high yield. The addition-oxidation synthesis route is suitable for the continuous, stable, and large-scale production of a corresponding diacid product.\nD: A polymerizable compound of a general formula and an application thereof in preparing a high molecular weight polymer. The polymerizable compound does not exhibit, or exhibits to a lesser degree, problems existing in the prior art. Further, the polymerizable compound has good solubility and can resolve issues with high molecular weight polymers of the prior art caused by the poor solubility of polymerizable compounds. The preparation process and raw materials of the polymerizable compound are readily available, the synthetic route is simple and easy, and thus the polymerizable compound is suitable for large-scale industrial production.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn automatic report interpretation method and system. The method comprises: acquiring evidence data sources for bioinformatics analysis; calculating a score of each evidence data source, defining a value representing pathogenicity in the calculation result as value A, and defining a value representing a benign result in the calculation result as value B; sorting each site of bioinformatics analysis according to the scores of the calculation results; screening a pathogenicity site according to industry golden standards; correspondingly post-importing pathogenicity site data, patient phenotype data, and related data in a local relational database into a template; and adding a conclusive description to the template to obtain a complete report. The present invention multi-dimensionally displays found core data along with peripheral information thereof, maximally integrates associated data, and enables a bioinformatics analysis report to be easy to read.\nA: A data sample obtaining method and apparatus, and an electronic device and a computer-readable storage medium. The method comprises: segmenting data into data blocks to serve as sample data to be stored in a database (S210); extracting a sample from the database for the first time after a sample calculation parameter input by a user side is received (S220); obtaining a first sample set for operation, screening out a vacancy parameter and a standard reaching rate of each preset project (S230); calculating an earned value according to each non-standard preset project, screening out the vacancy number corresponding to the maximum earned value as a supplementary extraction cardinal number of each non-standard preset project, and performing secondary sample extraction to obtain a second sample set (S240); and finally, combining the first sample set and the second sample set to obtain a target sample set, and generating a data analysis report (S250). According to the method, parameterization setting and calculation are introduced in a process of obtaining the sample data, corresponding sample data is automatically obtained from the database according to a calculation result, and the effectiveness and reliability of the obtained target sample data are ensured.\nB: A data processing method, platform and system. The method comprises: storing original commodity content data in a first relational database by cluster, by library and by table (S51); establishing index data according to the original commodity content data and storing the index data in an index database (S52), the index data comprising keyword fields and query dimension identification data corresponding to each keyword field; and computing the original commodity content data by means of a computing program to obtain computing result data, and associatively storing the computing result data and the query dimension identification data in the first relational database (S53). The computing efficiency is improved, and an index database is established according to query dimensions to perform indexing in advance during a subsequent query, which inevitably improves the querying efficiency.\nC: Provided are automatic matching method and system for an ultrasonic diagnosis report, wherein the method comprises: S1, loading a report template, wherein the report template comprises: a user basic information filling area, a scanning image display area, a measurement data filling area and a diagnosis result filling area, wherein the measurement data filling area is used for filling a measurement item and a measurement result corresponding to the measurement item; S2, generating a measurement identification according to the report template, and the measurement identification comprises: a measurement item type, a measurement item ID, a measurement item name and a measurement item unit; S3, generating a measurement packet according to the measurement identification; and S4, loading the measurement packet to measure, and filling the measurement result to the report template for output. The automatic matching method and system for the ultrasonic diagnosis report can add measurement items as needed in a custom report template according to user needs, and automatically adjust the configuration of the measurement packet according to the custom report template, and then directly generate a report that meets the user needs after the measurement according to the new measurement package.\nD: The present application relates to artificial intelligence, and provides a data analysis method and apparatus based on natural language processing, a computer device, and a storage medium. The method comprises: acquiring a data analysis instruction, wherein the data analysis instruction carries information to be analyzed based on a natural language expression; on the basis of natural language processing, performing semantic analysis on said information to obtain a word segmentation structure; calling a search engine to make a query for corresponding data according to the word segmentation structure to obtain an original data set; performing anomaly analysis on the original data set to obtain a data analysis result; and refining the data analysis result into natural language on the basis of natural language generation technology, and then generating an analysis report corresponding to said information. In addition, the present invention also relates to blockchain technology, and an original data set can be stored in a blockchain. By using the method, a user can obtain an analysis report by using natural language to input information needing to be analyzed and initiating a data analysis instruction, thereby reducing the technical threshold of data analysis.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method and apparatus for generating a user portrait, and a storage medium and an electronic device, which relate to the technical field of big data processing. The method comprises: determining user labels of a target user in a plurality of different dimensions according to disease information and daily life information; determining the current exercise schedule and the current diet schedule of the target user according to the user labels in the different dimensions and daily behavior information of the target user; constructing a target schedule according to the current exercise schedule and the current diet schedule, and generating a user portrait of the target user according to the target schedule, a preset exercise category and a food category; and matching a standard diet scheme and a standard exercise scheme for the target user according to the user portrait, and sending the standard diet scheme and the standard exercise scheme to a terminal device of the target user. The accuracy of a standard diet scheme and a standard exercise scheme is improved.\nA: The present application relates to the technical field of electronic devices. Disclosed are a push content processing method and apparatus, and an electronic device and a storage medium. The method is applied to the electronic device, and comprises: an electronic device receives push content to be displayed to a target user; obtaining a user matching a user portrait of a target user as a reference user according to the user portrait of the target user; obtaining a conversion rate of the reference user for the push content as a reference conversion rate; and determining a processing mode of the push content on the basis of the reference conversion rate. According to the push content processing method and apparatus, and the electronic device and the storage medium provided in embodiments of the present application, when the push content is received, the reference user is obtained according to the user portrait, the reference conversion rate of the reference user for the push content is obtained, and the processing mode of the push content is determined on the basis of the reference conversion rate, so that the conversion rate of the displayed push content and user experience are improved.\nB: Provided by the present application is a method for directionally recommending a user, comprising the following steps: acquiring characteristic information of a current user, and constructing a user portrait according to the characteristic information; acquiring characteristic information to be matched that is configured by the current user; determining whether a target user having a user portrait that matches the user portrait of the current user and that has characteristic information that matches the characteristic information to be matched is present in a set of users to be selected; when a target user having a user portrait that matches the user portrait of the current user and that has characteristic information that matches the characteristic information to be matched is present, pushing a message comprising the characteristic information of the target user to the current user. The present application may recommend the optimal matching user to a current user according to characteristic information of the current user so as to improve the satisfaction of users during residency, while an owner and tenant may know each other better by means of the portrait of the other, thereby increasing the degree of trust between the owner and tenant, thus facilitating a house lease transaction between the owner and tenant.\nC: A multi-knowledge graph based intelligent reply method and apparatus, a computer device and a storage medium, related to big data and knowledge graphs. The method comprises: if another intelligent session connection instruction sent by a client is detected, obtaining a target user portrait corresponding to another intelligent session connection instruction (S107); determining whether the target user portrait is correspondingly bound with a first output result or not (S108); and if a first output result is bound in the target user portrait, obtaining a corresponding third current association problem set from a local second knowledge graph library according to the first output result, and sending the third current association problem set to the client (S109). According to the method, the association problem set is called in different knowledge graph libraries according to key entity names corresponding to the user portraits, corresponding information is correspondingly recommended to the users with different knowledge mastering degrees, and the information acquisition efficiency and accuracy of the users can be effectively improved.\nD: An information processing method, apparatus and device, which relate to the field of data processing, making a recommended training plan better meet the requirements of a user for a training effect. The method comprises: acquiring data of a target user, wherein the data of the target user comprises health data, attribute data, evaluation data, and training data of the target user in a candidate training program, and an improvement value of the evaluation data of the target user within a first pre-set time period is greater than 0; forming a training program recommendation model according to the data of the target user; acquiring data of a user to be recommended, wherein the data of the user to be recommended comprises health data, attribute data, and evaluation data; and according to the data of the user to be recommended and the training program recommendation model, generating a recommended training program for the user to be recommended.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for transmitting service information, and an electronic device. The method comprises: a first terminal device using user information of the first terminal device to perform authentication with an IoT server, and obtaining token information for communicating with the IoT server; and the first terminal device communicating with the IoT server by means of the token information. During the process of authentication between a first terminal device and an IoT server, user information of the first terminal device is used, thereby avoiding the need to bind a first IoT terminal device with the IoT server. When the first IoT terminal device and the IoT server are devices from different manufacturers, the first IoT terminal device and the IoT server can also communicate with each other, such that the applicability can be improved, and the need to deploy different IoT servers for IoT terminal devices from different manufacturers is also avoided, which can reduce costs.\nA: Disclosed in embodiments of the present description are an electronic certificate transmission method, apparatus and device. During a process of obtaining a business service, a first user can carry out, using a terminal by means of near-field communication, information communication with a terminal used by a second user to obtain user information of the second user, so that the first user can simultaneously send the obtained user information of the second user and identifier information of an electronic certificate of the first user to a business server providing the electronic certificate, and thus the business server can check the user information of the second user and delivers the same electronic certificate to the second user after the check succeeds, thereby implementing the sharing of the electronic certificate.\nB: A method and device for establishing a map model. The method comprises: by receiving first dimension information, second dimension information, and third dimension information sent by a first terminal device, a server can associate the position, image information, and description information of any of a plurality of target time points to obtain feature information of the target time point, thereby establishing a map model. Because the server establishes the map model according to data of a plurality of dimensions acquired by the first terminal device, and the first terminal device does not need to perform communication interaction with other hardware devices (for example, an access point device) when acquiring the data of the plurality of dimensions, no other hardware device is required to be deployed in a building, so that hardware costs can be effectively reduced.\nC: An information input method, device, and system. The method comprises: receiving information input conversion information sent by a user by means of a first terminal device (101); determining a second terminal device according to setting information of the user, and sending an input operation instruction to the second terminal device (102); and receiving information content input by the second terminal device by means of an input means according to the input operation instruction, and displaying the information content in the first terminal device (103). When a user needs to input information content, the user can send information input conversion information by means of a first terminal device; a server can transfer an input operation of the user to a second terminal device; when the data amount of the information content to be input is relatively large, the information content can be input by means of an input means of the second terminal device. Compared with inputting information content by means of an information input page provided by the first terminal device in the prior art, the information content input efficiency is effectively improved, and the user experience on the first terminal device is also improved.\nD: A positioning method, an apparatus, and a system. Suitable for internet of vehicles, connected vehicles, autonomous driving, and other scenarios, and able to solve the problem of a first terminal device having low positioning accuracy due to an unsuitable reference object. The method comprises: a server receives a first message from a first terminal device. Where the first message comprises first position information determined by the first terminal device. The server determines a first reference object according to the first position information. the server sends a second message to the first terminal device. Where the second message comprises identification information of the first reference object, the identification information of the first reference object being used by the first terminal device to update the first position information. By utilizing the provided method, positioning accuracy of the first terminal device can be improved.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention provides an irradiation target for producing a Mo-99 isotope in a heavy water reactor, comprising: a plurality of fuel elements, each comprising a cladding, a uranium-containing core, and an end plug. An end part of the cladding is provided with a filling opening. The end plug covers the filling opening at the end part of the cladding, and is in sealing connection with the cladding. The uranium-containing core is filled in a sealed cavity formed by the end plug and the cladding. A plurality of fuel elements are provided. End plates are arranged at both ends of the fuel elements and are fixedly connected to the plurality of fuel elements. The uranium-containing core of at least one of the fuel elements is an uranium-containing core provided with a rich uranium fuel, and the  235  U enrichment degree of enriched uranium fuel is 6.0 wt% - 20.0 wt%. By means of the present invention, existing reactors may be utilized for non-stop production of Mo-99 having a short half-life. By using enriched uranium to produce Mo-99, the efficiency is high and the quality is good. Meanwhile, effects on power generation of a nuclear power plant can be reduced to a maximum extent.\nA: Disclosed is a piezoelectric thermoelectric dynamic isotope cell, comprising: a gas pipeline (109); a heat source cavity covering case (106), two opposite ends of the heat source cavity covering case (106) respectively being in communication with the two ends of the gas pipeline (109), such that a closed circulation pipeline is formed, and a unidirectional gas charging valve (108) being arranged on the heat source cavity covering case (106); a fuel box (102), the fuel box (102) being fixedly provided inside the heat source cavity covering case (106); a radioactive source (101), the radioactive source (101) being arranged in the fuel box (102); a gaseous working medium (110), the gaseous working medium (110) being filled in the circulation pipeline; a piezoelectric energy conversion assembly (201), the piezoelectric energy conversion assembly (201) being provided on an inner surface of the gas pipeline (109); a thermoelectric energy conversion assembly (206), the thermoelectric energy conversion assembly (206) being provided on an outer surface of the gas pipeline (109) and spaced apart from the piezoelectric energy conversion assembly (201); and a single-cavity compressor (207b), the single-cavity compressor (207b) being provided on the gas pipeline (109) and being used for driving the gaseous working medium (110) to flow in a circulating manner.\nB: A nuclear power plant spent fuel negative pressure unloading system, comprising a fuel element transport pipe and a gas transport pipe (1). The fuel element transport pipe comprises a fuel element output pipe, a fuel element lifting pipe, and a fuel element unloading pipe connected in series. The fuel element unloading pipe is arranged obliquely downward in the direction of movement of a fuel element. The distal extremities of the fuel element unloading pipe are connected sequentially to fuel loading apparatus (26 and 39) and a transfer apparatus. The gas transport pipe (1) is connected at either extremity thereof respectively to set positions on the fuel element output pipe and the fuel element unloading pipe. A gas driving mechanism is connected onto the gas transport pipe (1). An inlet of the gas driving mechanism is arranged at an extremity in proximity to the fuel element unloading pipe. The sealed system prevents significant oxidation of a spent fuel element due to high temperature, thus ensuring the integrity of the fuel element in the transfer apparatus and the safeness of the system.\nC: A target used for heavy water reactor production of C-14 isotopes, which comprises: a target tube, which has a target material (11) and/or an absorber material (14), the target material (11) being a nitrogen-containing solid material; end plates (2), which are arranged at two ends of the target tube; a connection rod (3), which is provided with a connection component that is connected to a positioning mechanism used for positioning the target, wherein the connection rod (3) passes through the target tube along the axial direction of the target tube, and the target tube is fixedly connected to the connection rod (3) by means of the end plates (2). The present invention can be adapted to be placed at different locations such as at a guide tube, an inspection passage, or a fuel channel to undergo irradiation and produce C-14 isotopes.\nD: Disclosed is an environmentally friendly easy-to-recover sharps container, comprising a container body (1) and a container cover (2). The container body (1) is provided with a protruding cylinder portion (11) integrally formed with the container body (1), the protruding cylinder portion (11) is internally provided with a fuel groove (110) for placing fuel, a feeding pipe (111) in communication with the fuel groove (110) is arranged on the protruding cylinder portion (11), the protruding cylinder portion (11) is provided, inside the fuel groove (110), with a first segmentation ring (1101) and a second segmentation ring (1102) that are integrally formed with the protruding cylinder portion (11), a plastic bent pipe (112) in communication with the fuel groove (110) is further arranged on the protruding cylinder portion (11), the end of the plastic bent pipe (112) away from the protruding cylinder portion (11) extends into the container body (1) through the container body (1) and is in communication with an annular plastic pipe (113), several fuel outlets (1130) are further provided in the annular plastic pipe (113), and a valve (1120) is further arranged on the plastic bent pipe. Before a worker performs incineration, the valve on the plastic bent pipe can be opened, and the fuel in the fuel groove can flow out and into the container body. In this way, the inside and outside of the sharps container can synchronously burn when the whole sharps container is incinerated, and this can increase the incineration speed, thereby making burning more thorough.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA closed-loop axisymmetric magnetic circuit magnetic core coil component for a Hall current sensor includes two skeletons, a magnetic core and coil windings. The skeletons include an inner skeleton and an outer skeleton, wherein the inner skeleton is wound with a secondary coil winding, and the outer skeleton is wound with a primary coil winding. The inner skeleton and the outer skeleton are inserted towards and locked by each other, and a magnetic core slot and jack are provided on the skeletons. A magnetic core is formed by inserting multiple layers of riveting magnetic sheets with different widths towards each other. The magnetic core is of an axisymmetric magnetic circuit structure, and a single air gap is located at the end of the axis of symmetry near the magnetic core, with Hall elements being provided within the air gap. The magnetic core is mounted in the magnetic core slot and jack of the skeletons, and coil windings on the inner and outer skeletons are located on the axis of symmetry of the magnetic core, and the magnetic core coil component is mounted on a printed circuit board. The magnetic core coil component is of a simple structure, is convenient to mount and is of high precision.\nA: A high-precision cross-core open-loop electronic circuit for a Hall current sensor includes an instrumentation amplifier and 2n Hall elements (H1-H2n), wherein the 2n Hall elements are driven respectively using positive and negative mirror constant current source groups of n linear temperature compensation circuits with sensitivity temperature drift to extract a voltage from the input ends of the Hall elements to perform proportion adjustment and temperature tracking compensation on the zero-point voltage of a current sensor; the differential output ends of the Hall elements are respectively connected to a same-phase end and a reverse-phase end of the instrumentation amplifier through the same resistor, realizing the differential output of the 2n Hall elements to calculate the arithmetic mean value; the Hall elements are graded according to the magnitude of positive and negative values of the offset voltages thereof, and the Hall elements, of which the offset voltages are in the same grade while the polarities are reversed, are matched one by one, and are mounted along an identical orientation of an annular magnetic core; and the resistance of an RC filter is within the range for outputting a negative feedback of the amplifier. Provided is an electronic circuit for a high-precision cross-core open-loop Hall current sensor of a simple structure and low costs while the measurement is more precise, belonging to the field of electronic circuitry for a Hall current sensor.\nB: An AC permanent-magnet drain pump comprises a pump body (10), a pump cap (1), an impeller (2), a stator assembly, and a rotor assembly. The stator assembly comprises a stator coil (7) and a stator core (8), the rotor assembly comprises a rotation shaft (11), a magnetic core (15) penetrating the rotation shaft, a shaft sleeve (93a) secured on the rotation shaft, and at least one limiting rib provided on the outer wall of the shaft sleeve. The stator assembly and the rotor assembly are mounted in the pump body (10). A rotor base (17) for supporting the rotor assembly is provided in the pump body (10), and an inwardly concaved arc portion of the stator core (8) is embedded in the rotor base (17). The rotor assembly further comprises a start mechanism, for driving the rotation shaft to rotate as the magnetic core rotates. The start mechanism has a start sleeve (93b) that is secured at one end of the magnetic core, and the start sleeve (93b) is made of a non-magnetic material. The AC permanent-magnet drain pump has the advantages of a small magnetic path air gap between the stator core and the magnetic core, high product use efficiency, small structural size, low working noise, desirable heat dissipation, large start torque of the start mechanism, and stable starting.\nC: An AC permanent-magnet drain pump comprises a pump cap (1), a pump body (10), a magnetic core (15), a rotation shaft (11), a stator core (8), and a coil (7). The coil (7) winds on a coil former, the stator core (8) is assembled to the coil (7), and the pump body (10) is a case body integrally formed through injection molding and surrounding the contour of the coil (7), the coil former, and the stator core (8) that are assembled together. The case body defines an opening on the top and extends, through the opening, to a magnetic core accommodation space (10.1) for accommodating the magnetic core (15). A top opening of the magnetic core accommodation space is provided with a support structure for supporting the bearing of the rotation shaft. The pump body (10) comprises a first pump body portion (10a) and a second pump body portion (10b), and the inside of the second pump body portion (10b) is provided with a cylindrical rotor base (17) for supporting a rotor assembly. The magnetic core accommodation space (10.1) is encircled by the inner surface of the rotor base (17). An inwardly concaved arc portion of the stator core (8) is embedded in the rotor base (17). The AC permanent-magnet drain pump reduces a magnetic path air gap between the stator core (8) and the rotor, thereby improving the use efficiency of the product, reducing the structural size of the pump body, reducing the manufacturing cost of the product, preventing the pump body from resonating and making a noise, and enhancing the heat-dissipation performance of the pump.\nD: A borehole transient electromagnetic radial long-range detection and observation system. The system comprises two three-component transceiving probes and a control probe, which is arranged between the two three-component transceiving probes, wherein each of the three-component transceiving probes comprises an outer framework; a transmitting coil is wound outside the outer framework; a first inner framework, a central inner framework and a second inner framework are successively arranged in the outer framework in an axial direction; a ferrite core is placed in the central inner framework, horizontal-component receiving coils in X and Y directions are respectively wound outside the central inner framework in a long edge direction; ferrite cores are placed in both the first inner framework and the second inner framework, and receiving coils in a Z direction are respectively wound outside the first inner framework and the second inner framework; and the probe parameters of the two three-component transceiving probes are different. Further disclosed are a borehole transient electromagnetic radial long-range detection and observation method and a method for processing data of borehole transient electromagnetic radial long-range detection and observation.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an electronic coil and an electronic expansion valve having same. The electronic coil comprises: a coil main body (10); a wire plug part (20), which is arranged on the coil main body (10), wherein the wire plug part (20) comprises a coil-connecting part (21) and a housing (22), a pin (23) is arranged on the coil-connecting part (21), and the housing (22) covers the coil-connecting part (21); a circuit board (30), wherein the circuit board (30) is arranged on the pin (23) in a penetrating manner; and a supporting part (40), which is arranged on the coil-connecting part (21), wherein the supporting part (40) is configured to be attached to at least part of the circuit board (30), and the supporting part (40) is used for supporting the circuit board (30), such that a gap is present between the coil-connecting part (21) and the circuit board (30). The technical solution can solve the technical problem of the poor welding performance of a circuit board of an electronic coil in the prior art.\nA: A solenoid valve coil, comprising: a solenoid valve coil body (10); and a lead assembly (20). The lead assembly (20) comprises a connector (21) and a wire (22); the connector (21) comprises a wire passing hole (2121); an end portion of the wire (22) extends into the wire passing hole (2121) and can be electrically connected to the solenoid valve coil body (10); the wire (22) and an inlet of the wire passing hole (2121) are sealed. The solenoid valve coil can effectively solve the problem in the prior art that the sealing performance of coils is poor.\nB: A bell assembly and a vehicle having same. The bell assembly is to be provided at a vehicle handlebar (40). The bell assembly comprises: a connection portion (10), wherein an insertion passage is arranged at the connection portion (10), such that the connection portion (10) can be sleeved onto the vehicle handlebar (40) by means of the insertion passage; a bell component (20) provided at the connection portion (10); and a first engagement portion (30) provided at the connection portion (10), wherein the first engagement portion (30) is positioned inside the insertion passage, such that when the connection portion (10) is sleeved onto the vehicle handlebar (40), the first engagement portion (30) is engaged with and positioned by a second engagement portion (41) of the vehicle handlebar (40). The invention can solve the technical problem in the art in which a bell assembly is not convenient to operate and use.\nC: An image stabilization structure, an image stabilization system, and a photographic device. The image stabilization structure comprises a housing (10) and a base (20), the housing (10) covering the base (20) and forming an accommodating space with the base (20). Same further comprises a lens support body (30), a frame (40), a lateral magnet (50), a lateral coil (60), a magnetic attraction plate (70) and a plurality of balls (80), which are arranged in the accommodating space, wherein the lateral magnet (50) is arranged on one side of the lens support body (30); the lateral coil (60) is arranged on the frame (40) and corresponding to the lateral magnet (50) to enable the lens support body (30) to be movably arranged on the frame (40) in a Z-direction; the plurality of balls (80) are arranged between the frame (40) and the lens support body (30) to enable the lens support body (30) to smoothly slide relative to the frame (40); and the magnetic attraction plate (70) is arranged on the side of the lateral coil (60) that is away from the lateral magnet (50). The problem of the poor usage performance of photographic devices in the prior art is thus solved.\nD: Provided are an anti-shake structure, anti-shake system, and camera apparatus; the anti-shake structure comprises an outer housing (10) and a base (20); the outer housing (10) is coveringly arranged on the base (20) and forms an accommodating space between it and the base (20); the anti-shake structure also comprises, arranged in the accommodating space: a lens support body (30), a frame (40), a plurality of driving magnets (50), a plurality of driving coils (60), a lateral magnet (70), a lateral coil (80), and a plurality of balls (90); the lateral magnet (70) is arranged on one side of the lens support body (30); the lateral coil (80) is arranged, corresponding to the lateral magnet (70), on the frame (40) such that the lens support body (30) is movably arranged on the frame (40) in the Z-direction; the plurality of balls (90) are arranged between the frame (40) and the lens support body (30), enabling the lens support body (30) to slide smoothly with respect to the frame (40); the driving magnet (50) is arranged on the side of the frame (40) away from the lens support body (30); the plurality of driving coils (60) are arranged corresponding to the plurality of driving magnets (50), and the driving coil (60) is arranged on the base (20), solving the problem in the prior art of poor anti-shake performance of camera apparatuses.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA welding system (2) for a metal piece (11) and a coaxial cable (12), comprising: a heating device (21) provided at a processing station and enabling the metal piece (11) or the coaxial cable (12) to enter a contact for heating; a solder feeding device (22) disposed adjacent to the heating device (21) and used for adding solder (13) to a joint of the metal piece (11) and the coaxial cable (12); and a moving and positioning device (25) used for separately clamping and transferring the metal piece (11) and the coaxial cable (12) to the processing station. The present invention also relates to a welding method for a metal piece (11) and a coaxial cable (12). The system and method can well improve the reliability and conduction rate of soldering of a metal piece and a coaxial cable, and can improve production efficiency and reducing production costs.\nA: A time domain reflective single end test apparatus and method for a radio frequency co-axial coupler. The apparatus comprises an assembly to be tested (10), a co-axial cable (14), a network analyser (15) and a computer (16). The assembly to be tested (10) comprises a female-to-female radio frequency co-axial coupler (11), a male-to-female radio frequency co-axial coupler (12) and a load resistor (13) which are connected in series. An output end of the network analyser (15) is connected to one end of the co-axial cable (14), and the other end of the co-axial cable (14) is connected to the female-to-female radio frequency co-axial coupler (11) of the assembly to be tested (10). An output end of the network analyser (15) is connected to the computer (16), and the network analyser (15) is used for performing a time domain reflective test on the assembly to be tested (10) so as to obtain a reflective voltage signal of the assembly to be tested (10) and input the measured reflective voltage signal to the computer (16) so as to obtain a fault position of the male-to-female radio frequency co-axial coupler (12). The test apparatus and method can analyse the impedance mismatch problem of a radio frequency co-axial coupler more intuitively and clearly, and can precisely determine the fault position of a radio frequency co-axial coupler.\nB: Provided is a method for non-contact overall heating and tin brazing of a metal structural member and PCB, comprising the following steps: placing a workpiece on a drive system and transferring said workpiece to a heating system by means of the drive system, the workpiece being a joint body consisting of a metal structural member, PCB, weld, and a rotation fixture; heating the workpiece by non-contact thermal radiation of the entire body, causing the weld on the workpiece to melt; cooling the workpiece on which heating and welding has been completed, such that the molten weld rapidly solidifies into a desired weld point. The welded components are fixed, weld material is added, the weld is heated, and splitting is performed to establish two different processes, and a fine division of process steps is advantageous to the automation of each of the process steps, achieving modularized management.\nC: A multi-slot microwave ablation needle, comprising an antenna radiation area (100) and a water cooling system for the ablation needle. The antenna radiation area (100) comprises a metal needle (110), a transmission area casing (120), and a semi-steel coaxial cable (130); the transmission area casing (120) is made of a high-temperature resistant material having a relative dielectric constant of 28-32, and comprises a stepped through hole; the semi-steel coaxial cable (130) comprises a coaxial cable outer conductor (133), a coaxial cable inner conductor (131), and a coaxial cable insulation layer (132); the coaxial cable outer conductor (133) and the insulation layer (132) of the semi-steel coaxial cable (130) at two positions are stripped, and the two positions are filled with a high-temperature resistant material having a relative dielectric constant of 25-35, so that a first transmission window (122) and a second transmission window (123) are formed in the transmission area casing (120); the stepped through hole of the transmission area casing (120) is divided into two sections; and the semi-steel coaxial cable (130) is fitted in the first section of the stepped through hole, and the second section of the stepped through hole is filled with metal to form a third transmission window (121) in the transmission area casing (120). The ablation needle is provided with three transmission windows (122, 123, 121) to ensure that a hot ablation zone is larger and has a shape closer to a sphere.\nD: An electric railway coaxial cable power supply system is composed of a central traction substation SS, a coaxial cable, traction transformers TT, an overhead line system T, a steel rail R, a breaker and the like. The central traction substation SS is connected to the coaxial cable. The coaxial cable and the overhead line system T are erected in parallel. The traction transformers TT are single-phase connecting lines and are distributed at certain intervals along the coaxial cable and the overhead line system T. Primary side windings of the traction transformers TT are connected between an inner conductor IC and an outer conductor OC of the coaxial cable in parallel, and secondary side windings of the traction transformers TT are connected between the overhead line system T and the steel rail R in parallel. By means of the adjacent traction transformers TT, the inner conductor IC of the coaxial cable is connected to the overhead line system T in parallel, and the outer conductor OC of the coaxial cable is connected to the steel rail R in parallel. According to the system of the present invention, the power supply capacity and the voltage level are mainly determined by the coaxial cable, the system is suitable for matching the coaxial cable with the overhead line system T at various voltage levels, and the light suspension and the overall quality improvement of the overhead line system T are facilitated; the coaxial cable is erected along a railway or a subway tunnel without additionally occupying any corridor, interfaces between the railway and the utility grid can be reduced, investment for an external power supply is saved, and management is convenient.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA lamp cable connector (100) and a lamp (200). The lamp cable connector (100) comprises: an end cover (1), wherein an opening hole (11) is provided in the end cover (1); a cable (3) configured to be assembled with the end cover (1), wherein an end of the cable (3) is provided with a protruding portion (31), and an outer side wall of the protruding portion (31) is provided with an accommodating groove (33); and a sealing member (2) sleeving the protruding portion (31) and accommodated in the accommodating groove (33), wherein the cable (3) is assembled with the end cover (1) and then inserted into the opening hole (11), and the sealing member (2) is pressed and fixed between the protruding portion (31) and the end cover (1), such that the end cover (1) is connected to the cable (3) in a sealed manner. Waterproofing between the end cover (1) and the cable (3) can be directly achieved by using the waterproof function of the cable (3), no separate waterproof connector needs to be assembled and connected to the cable (3), and the waterproof effect exhibited after assembly of the cable (3) and the lamp (200) can be effectively enhanced.\nA: A waterproof hybrid encoder, comprising a sealing element, an insulating sheath, bearings, an insulating gland, a threaded pressing element, an optoelectronic system, a grating disc, a support ring, a circuit board, a back cover, a waterproof electric cable connector, an encoder body, a hollow shaft, a fixing frame, and a spacer ring; the hollow shaft is fixedly connected to a generator output shaft according to a precision matching requirement, and the grating disc is fixed on the hollow shaft by means of the support ring; the hollow shaft is connected to the encoder body by means of the sealing element, the two bearings, the insulating sheath, the insulating gland, and the threaded pressing element; the spacer ring is provided between the two bearings; disposed on the encoder body are the circuit board and the optoelectronic system comprising a light emitting tube corresponding to a code channel of the grating disc, an indicating grating, and an optoelectronic receiving element array; the encoder body is fixed on a generator base by means of a fixing frame; an electrical cable is connected to the circuit board and outputs by means of a waterproof sealed electrical cable connector. The encoder does not require an expensive insulating bearing or an insulating adapting shaft for the encoder which requires complex installation. When used for feedback on the speed of wind motors, the present invention is easily assembled, requires only conventional bearings, and enhances insulation, breakdown shaft voltage, and shaft current protection.\nB: A waterproof casing having a high cooling efficiency, the casing comprising a main body (1), a first end cap (2), and a second end cap (3). The main body (1) is integrally formed by means of an aluminum drawing process. The first end cap (2) and second end cap (3) are sealingly connected to two ends of the main body (1), respectively. A cooling channel (4) is provided on an inner wall on at least one side of the main body (1). A ventilation device (11) is provided between the cooling channel (4) and an internal space of the main body (1), is used to draw an airflow from within the internal space of the main body (1) to the cooling channel (4), and drives the airflow to circulate between the cooling channel (4) and the internal space of the main body (1). Also provided is a stage lamp having the waterproof casing having a high cooling efficiency. The present invention enables the waterproof casing having a sealed structure to have a high cooling efficiency, thus providing waterproofness to a stage lamp without influencing an operation performance of the stage lamp.\nC: Disclosed is an endoscope, comprising a camera handle for fixing a camera lens and a plug-in connector thereof, the camera handle comprising an outer housing, an end cover and an inner housing, and a sensor element in the inner housing; a lens group is provided between the sensing element and the end cover; the inner housing is fixedly connected to the outer housing by means of a mounting assembly, and the outer housing is fixedly connected to the inner housing by means of a fixing assembly; and a light-transmitting hole corresponding to the position of the sensing element is formed in the middle of the end cover. The beneficial effect of the present invention is that the inner housing is located in the outer housing, and both the inner and outer housings are fixedly connected to the end cover, so that the overall sealing performance of the camera handle is excellent, and the waterproof and dustproof performance is good. A detachable waterproof cap is provided at the end part of a sleeve, and an elastic sealing ring is provided between the waterproof cap and a mounting tube, so that a plug is in a closed space, which may prevent damage to a wiring plug caused by the infiltration of disinfectants. The endoscope is suitable for use as a wiring plug of medical equipment, and has good waterproof performance and usage safety.\nD: An accumulated water resistant lamp (100), comprising a lamp body (10) having a top and a bottom, a light source module (20) and a sealing member (30) which are accommodated in the lamp body (10), and a mask (40) connected to the top of the lamp body (10) to shield the light source module (20) and the sealing member (30). The accumulated water resistant lamp (100) further comprises pressing members (50) for fixing the mask (40) to the lamp body (10) and fixing members (60) for assembling and fixing the pressing members (50). Each pressing member (50) is provided with a mounting portion (52) extending into the lamp body (10), and a gap (a) is reserved between the pressing member (50) and the lamp body (10). Fixing recesses (13) for accommodating the fixing members (60) are provided at the bottom of the lamp body (10). The gap (a) is communicated with the fixing recess (13), so that accumulated water between the mask (40) and the lamp body (10) flows out of the gap (a) and the fixing recess (13). Compared with the prior art, the present structure can automatically drain accumulated water on the lamp, does not cause water leakage and damage of the lamp due to long-term residual accumulated water, and effectively solves the problem of the waterproof failure of the lamp due to the fact that long-term residual accumulated water cannot be drained.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present application are a battery system, a driving system and an energy storage container. The battery system comprises: a plurality of battery packs, which are connected in series, wherein each battery pack corresponds to a first switch, which is connected thereto in series, and each battery pack corresponds to a second switch, which is connected thereto in parallel; each battery pack is connected to the second switch in parallel after being connected to the corresponding first switch in series; the first switch comprises a plurality of controllable switch tubes, which are connected in parallel, and the second switch comprises a plurality of controllable switch tubes, which are connected in parallel; and the plurality of controllable switch tubes comprised in the first switch correspond to at least two different switch-on moments, and the plurality of controllable switch tubes comprised in the second switch correspond to at least two different switch-on moments. The current is relatively large after the first switch is switched on, some of the controllable switch tubes of the second switch that are switched on first automatically explode because the current is too large, the second switch is not successfully switched on, and thus a positive electrode and a negative electrode of the battery pack are not short-circuited. Therefore, the battery pack does not short-circuit after a long time, thereby ensuring the safety of the battery pack.\nA: A direct-current power supply parallel-machine input reverse connection prevention circuit and a server. The circuit comprises a first switch tube (Q1) and a second switch tube (Q2); a first end of the first switch tube (Q1) is used for being connected to a positive end of a first power supply (Power1), and a second end of the first switch tube (Q1) is connected to a positive input end of a first driving module (100); a first end of the second switch tube (Q2) is used for being connected to a positive end of a second power supply (Power2), and a second end of the second switch tube (Q2) is connected to a positive input end of a second driving module (200). When the second power supply (Power2) is connected reversely, the first switch tube (Q1) is closed, the second switch tube (Q2) is opened, thus preventing a current from flowing from the positive end of the first power supply (Power1) to a negative end of the second power supply (Power2); when the first power supply (Power1) is connected reversely, the first switch tube (Q1) is opened, the second switch tube (Q2) is closed, thus preventing a current from flowing from the positive end of the second power supply (Power2) to a negative end of the first power supply (Power1). The currents are blocked by means of the first switch tube (Q1) and the second switch tube (Q2), and the problem of internal device damage caused by power supply reverse connection during direct-current power supply parallel-machine input is effectively solved.\nB: The present invention is adapted to the technical field of voltage stabilization. Provided are an alternating-current voltage stabilizer (1) and an alternating-current voltage stabilizing device. The alternating-current voltage stabilizer (1) comprises: a tap gating circuit (12) and a multi-tap mutual inductance transformer (11); multiple taps of the multi-tap mutual inductance transformer (11) are provided on a primary winding thereof; a secondary winding of the multi-tap mutual inductance transformer (11) has one end used for connecting to a live wire end of an alternating-current input and the other end used for connecting to a load; the other end of the secondary winding is further connected to a neutral line end of the alternating-current input by means of the tap gating circuit (12). The tap gating circuit (12) comprises multiple controllable switch branches connected in parallel, and the number of the controllable switch branches is consistent with that of the taps of the primary winding; each controllable switch branch comprises two controllable switches connected in series, and each tap of the primary winding is connected between two controllable switches of the corresponding controllable switch branch. The cost of the alternating-current voltage stabilizer (1) can be reduced.\nC: An organic light emitting diode (OLED) driving apparatus (300, 800), and a control method and apparatus (1100, 1200) for the OLED driving apparatus (300, 800). The OLED driving apparatus (300, 800) comprises a first switching transistor (M6) and a second switching transistor (M5) connected in series; the first switching transistor (M6), the second switching transistor (M5), and an OLED are connected in series; and during a time period that the first switching transistor (M6) is in conducting state, the second switching transistor (M5) is subjected to a plurality of on-off actions to control the light emitting time of the OLED. When the second switching transistor (M5) is subjected to a plurality of on-off actions, the first switching transistor (M6) is in the conducting state, and the number of on-off times of the first switching transistor (M6) is reduced, thereby reducing the number of times of charging a parasitic capacitor at a control end of the first switching transistor (M6) according to a control signal (EM1) of the first switching transistor (M6), and reducing the loss.\nD: A battery system control and charging method, battery system, and electric vehicle, the battery system comprising: at least two battery packs, wherein each of the at least two battery packs is detachably connected to a battery base of an electric vehicle, and each battery pack corresponds to an identification code, and the identification codes of the battery packs belonging to the same battery system match with each other; and a battery management system, used for communicating with the electric vehicle when the battery system is connected to the electric vehicle, wherein the identification codes corresponding to the at least two battery packs are sent to the electric vehicle, such that the electric vehicle may determine whether the at least two battery packs belong to the same battery system. The battery pack in the battery system is detachably connected to the battery base, and a user can remove the battery pack from the electric vehicle, allowing the battery pack to be charged easily.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA smart shoe, the smart shoe comprising: a shoe body (100); an induction module (200) which is arranged on the shoe body (100) and comprises a triboelectricity interface, capable of generating electrical signals when being pressed upon as the result of a user's movements; a signal processing module (300) which is arranged on the shoe body (100) and connected with the induction module (200), capable of receiving the electrical signals generated by the induction module (200) and adding up steps; an alerting module (400) which is arranged on the shoe body (100) and connected with the signal processing module (300), capable of designating the alerting module (400) to display a corresponding status when the number of accumulated steps of the user reaches different preset values, so as to alert the user; and a first power supply module (500) which is arranged on the shoe body (100) and connected with the alerting module (400), and comprises a triboelectricity interface, capable of generating electric energy to power the alerting module (400) being pressed upon as the result of a user's movements.\nA: A clothes containing device, a foreign object detection method, a system, a medium, and a program product. The clothes containing device comprises: a cylinder (100), a clothes detection module (200), a prompt module (400), and a processor (300). The clothes detection module (200) and the prompt module (400) are separately connected to the processor (300), and the clothes detection module (200) comprises a smart fabric disposed inside the cylinder (100). The smart fabric is used for determining the object type of an object accommodated in the cylinder (100). When the processor (300) determines that a preset type of target object is currently accommodated in the cylinder (100), the processor (300) triggers the prompt module (400). According to the clothes containing device, the foreign object detection method, the system, the medium, and the program product, when a foreign object is included in clothes to be washed, a user can be prompted to check the clothes, thereby avoiding damage caused to the washing machine or economic losses caused to the user by inclusion of foreign objects.\nB: Provided are a temperature measurement patch, a temperature measurement system, and a wearable article. The temperature measurement patch comprises a first information processing module (100), a temperature measurement module (200), a human body sensing module (300), a first information transmission module (400), a power supply module (500), and a protection module (700); and the temperature measurement module (200), the human body sensing module (300), and the first information transmission module (400) are connected to the first information processing module (100). The power supply module (500) is connected to the first information processing module (100), the temperature measurement module (200), the human body sensing module (300), and the first information transmission module (400) respectively by means of a time switch (600); the first information processing module (100), the temperature measurement module (200), the human body sensing module (300), the first information transmission module (400), the power supply module (500), and the time switch (600) are mutually spaced and sealed in the protection module (700), so as to form blank grooves therebetween. The temperature measurement patch can periodically measure the temperature of a human body. Prompts about abnormalities and warnings are displayed and set by means of a user terminal; furthermore, the average power can be reduced, and the endurance time can be increased.\nC: A device for controlling a computer and a method for controlling a computer through a device. The device comprises: a touch sensing module, configured to convert a touch action on a screen by a user into an electric signal and transmitting the electric signal corresponding to the touch action to a touch signal processing module; the touch signal processing module, configured to process the electric signal corresponding to the touch action; an action sensing module, configured to convert a displacement and speed of movement of the user relative to the device into electric signals and transmit the electric signals corresponding to displacement and the speed to the action signal processing module; an action signal processing module, configured to process the electric signals corresponding to displacement and the speed; an application processing module, configured to convert the electric signal corresponding to the touch action and the electric signals corresponding to the displacement and the speed into control information for the computer and transmit the control information to a communication module; and the communication module, configured to convert the control information for the computer into a signal which can be recognized and received by the computer and transmit the signal to the computer.\nD: An intelligent shoe (100), comprising: a shoe body (1) and a control module (2). The shoe body (1) comprises a shoe vamp (11) and sole (12) connected to the shoe body. The sole (12) is provided with a groove (121). The control module (2) is detachably provided within the groove (121) and comprises a sensor (23) and a controller (24) electrically connected to the sensor. The sensor (23) collects user data. The controller (24) processes the user data.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA floating power plant and a bearing apparatus thereof. The bearing apparatus comprises support assemblies and operation/maintenance passages composed of a plurality of operation/maintenance floating bodies (3) arranged in sequence. Two adjacent operation/maintenance passages are connected by the support assemblies, the support assemblies are provided with electrical device installation positions (1-1) for installing electrical devices, and the electrical devices are installed at the electrical device installation positions (1-1) of the support assemblies. The installation of electrical devices is not affected by the distance between two adjacent operation/maintenance passages, thereby improving the versatility of the bearing apparatus.\nA: Disclosed is a multifunctional module-type light, comprising a light-emitting module (1) and a supporting assembly (2). The light-emitting module (1) is composed of at least one LED module (10), and a plurality of the LED modules (10) are connected via a connecting assembly (3). The supporting assembly (2) comprises a supporting frame (21) and a positioning assembly (22), wherein the supporting frame (21) is installed on the light-emitting module (1) in the manner that the angle thereof is adjustable via the positioning assembly (22), and the supporting frame (21) has installation feet (211) for connecting the light-emitting module (1) and a supporting surface (212) for connecting the two installation feet (211). The supporting surface (212) is a flat surface or an inclined surface, and the light-emitting module (1) is secured on the flat surface via the supporting surface (212). Such multifunctional module-type light uses a modularized designed unit structure, which breaks the power constraints that a conventional lamp has only a single-housing. The light-emitting module (1) can be formed by connecting a plurality of the independent LED modules (10) via the connecting assembly (3), and a suitable number of the LED modules (10) can be chosen according to the requirements of the outdoor environment so as to adapt to different environments. The supporting frame (21) is installed on the light-emitting module (1) in the manner that the angle thereof is adjustable, and the illuminating range can be adjusted according to different using requirements to meet different using demands.\nB: A floating unit and a waterborne pipeline supporting system consisting of floating units. The floating unit comprises a floating body (1), a supporting body (2), and a ballasting device. The floating unit descends or ascends by installing or removing a load. When the floating body (1) suspends underwater, the supporting body (2) is at least partially exposed and kept above the water surface. The pipeline supporting system comprises a plurality of floating units that are sequentially arranged at intervals in water. A connector for mounting or erecting a pipeline is arranged on the upper end of a supporting rod. The floating body (1) is fixed to the water bottom by a cable (4), and the cable (4) is straightened and subjected to an upward pulling force. A power transmission line (7) or a gas transmission pipeline (8) is erected on the upper end of the supporting rod so as to transmit electric energy and gas produced offshore to the mainland. The floating body suspends below the sea surface and is less affected by wind waves, thereby having the ability of resisting severe sea conditions.\nC: Provided is a fuel assembly transport container, comprising an outer housing (1) and a support structure (2) arranged in the outer housing (1); the outer housing (1) comprises a lower housing (11) and an upper housing (12) mounted on the upper side of the lower housing (11); the side walls of the lower housing (11) and the upper housing (12) are double-layered structures having hollow interlayers; the support structure (2) comprises a support frame (21) mounted inside the outer housing (1) and a support assembly (22) mounted on the support frame (21); an accommodating chamber (4) is formed in the support assembly (22) to accommodate and secure the fuel assembly (3); an end of the support assembly (22) is provided with a loading/unloading port (221), and when the support assembly (22) is stood upright, the loading/unloading port (221) is located at the upper end of the accommodating chamber (4); a lower end cover (225) positioned circumferentially with respect to the fuel assembly (3) is provided at the end of the accommodating chamber (4) opposite to the loading/unloading port (221); an upper end cover (222) which sealingly covers the accommodating chamber (4) and axially positions the fuel assembly (3) in the accommodating chamber (4) is mounted on the loading/unloading port (221). The outer housing (1) is made of double-layer stainless steel and has the advantages of corrosion resistance and higher structural strength; the outer housing (1) double-layer structure is filled with heat-insulating, shock-absorbing material, and has good thermal insulation and shock absorption performance; the invention improves the safety and stability of transportation.\nD: Disclosed is a yarn spool storage rack for use in textiles, the rack comprising a rack body, wherein the rack body comprises a bottom plate, a side plate, a central column and a shielding plate; a support assembly is adjustably mounted on the central column; a U-shaped connecting rod is arranged on a rear side of the support assembly; two bearing frames are symmetrically arranged on left and right sides of the support assembly; opposite ends of the two bearing frames are provided with limiting assemblies; and the limiting assemblies are fixedly connected to the U-shaped connecting rod. The support assembly of the present invention supports the bearing frames, and ensures stable storage and placement of yarn spools. The position of the support assembly on the central column can be adjusted so that spacing between two adjacent support assemblies can be adjusted according to the actual height of the yarn spools. The bearing frames can rotate towards the front side to totally expose the yarn spools on the bearing frames so as to facilitate taking and placing the yarn spools. In addition, when the bearing frames do not rotate, the bearing frames can be limited and fixed by means of the limiting assemblies at end parts, which ensures firmness of the bearing frames and improves overall structural strength and safety performance of the storage rack.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn operating key-free pulse oximeter based on Photoelectric effect is provided. The pulse oximeter comprises an optical frequency converter, a luminous driving circuit, a display, a microprocessor, a voltage stabilizing circuit module, a light coupled device and a power supply. The light coupled device connects with the voltage stabilizing circuit module, the voltage stabilizing circuit module connects with the microprocessor and the optical frequency converter, the microprocessor also connects with the optical frequency converter, the luminous driving circuit and the display. In which, after the distance between the light coupled device and the obstruction reaches a certain distance D, the light coupled device is in on-state or off-state, thus the startup or shutdown operation of the Operating key-free pulse oximeter is implemented. The pulse oximeter is operated without key, and is easy to operate.\nA: A backlight drive circuit, comprising: a voltage-stabilizing circuit for receiving and filtering input voltage, and outputting voltage-stabilized direct current (VCC); a booster circuit connected with the voltage-stabilizing circuit, and used for receiving and boosting the voltage-stabilized direct current (VCC) and then outputting the boosted direct current to a light emitting diode (LED) light bar; a control circuit connected with the booster circuit, and used for providing a pulse-width modulation (PWM) square wave and controlling the booster circuit to supply power for the LED light bar. The booster circuit comprises an MOS transistor or a triode; at least three resistors having similar or same resistance value(s) are connected in parallel between the ground and the source electrode of the MOS transistor or the collector of the triode. Correspondingly, also provided is a liquid crystal display employing the backlight drive circuit. The drive circuit improves the precision of the current outputted to an LED light bar.\nB: Provided are a latch and a D trigger. The latch comprises: a switch, a variable resistance-type memory, a voltage-dividing circuit and a voltage converter. When the switch is in a turned on state, the voltage converter is used for outputting an output signal of the latch according to an input signal of the latch, the output signal remaining consistent with the input signal. When the switch changes from the turned on state to a turned off state, the variable resistance-type memory is used for coordinating with the voltage-dividing circuit to enable the output signal of the latch when the switch is in the turned off state to remain consistent with the output signal of the latch when the switch is in the turned on state, thereby implementing a non-volatile latching function. Since the latch in the present invention uses relatively few components, circuit structure in simple, circuit area is reduced, and the level of integration of existing logic circuits can be improved.\nC: An activation system for an electric meter and an electronic device, the system comprising: a controllable circuit (1) that is disposed between a power supply source and an electric meter, wherein one terminal of the controllable circuit (1) is connected to the power supply source, and another terminal of the controllable circuit (1) is connected to the electric meter, and a control terminal of the controllable circuit (1) is connected to a microprocessor; the controllable circuit (1) is used to be turned on by an activation signal sent by the microprocessor so as to activate the electric meter, and the activation signal is sent when the microprocessor detects that the electric meter needs to be activated. The foregoing system may conveniently and promptly achieve the automatic activation of the electric meter without manual operation by a user, and the circuit is simple. Some conventional components may be used, which may effectively save costs.\nD: An oximeter (1), comprising: a blood oxygen collecting unit (2), which is provided with a first light-emitting unit (21), a second light-emitting unit (22), and a light-receiving sensor (23), the first light-emitting unit (21) emitting a red light, the second light-emitting unit (22) emitting an infrared light, and the light-receiving sensor (23) receiving the red light emitted by the first light-emitting unit (21) and not absorbed by the human body and the infrared light emitted by the second light-emitting unit (22) and not absorbed by the human body and converting the lights into an electric signal; a storage unit (3), which stores a first threshold; a microprocessor (4), which calculates the blood oxygen saturation of the human body on the basis of the electric signal detected by the light-receiving sensor (23) and comprises a determining unit (41), the determining unit (41) determining whether the blood oxygen saturation is less than the first threshold; and a display unit (5), which flash displays the blood oxygen saturation at a first frequency in a case where the determining unit (41) determines that the blood oxygen saturation is less than the first threshold.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn information transmission method in a radio frequency identification system includes: the information to be sent is composed to a frame which is sent after being coded and modulated, wherein, the constitution of the frame comprises a lead code/ a frame synchronization code, data information and check information; the lead code and the frame synchronization code adopt the same format which consists of a delimiter of the frame synchronization code and the lead code, the data 0 and the data 1 in sequence. An information transmission system in a radio frequency identification system is also provided. In the system, a frame composition unit is used for composing the information to be sent to a frame, wherein, the constitution of the frame comprises the lead code/ the frame synchronization code, the data information and the check information, the lead code and the frame synchronization code adopt the same format which consists of a delimiter of the frame synchronization code and the lead code, the data 0 and the data 1 in sequence. Adopting the above method and system reduces the design complexity of the frame and improves the efficiency of the information transmission.\nA: Disclosed are a data transmission method, comprising: a first device transmits first information of a first data block to a second device; the second device searches in a first index for a second data block similar to the first data block on the basis of the first information; the second device transmits second information of the second data block to the first device; the first device acquires locally a reference block identical to the second data block on the basis of the second information; the first device compresses a differentiating part of the first data block relative to the reference block to produce first compressed information; the first device transmits the first compressed information to the second device; and the second device obtains the first data block on the basis of the first compressed information and of the second data block. Also provided in the embodiments of the present application are a system, an apparatus, a device, and a medium. With respect to a data block to be transmitted, if a transmitted data block similar thereto is present, then only the part differentiating the two data blocks is transmitted, thus increasing the transmission efficiency of a data synchronization technique.\nB: Provided in the present application is a coding signal detection method, wherein each coding signal sequence comprises a positive code and a negative code, and each coding signal comprises a preamble area and a data area, the method comprising: receiving preamble area data; on the basis of a positive code encoding rule, identifying the preamble area data; determining whether the identified preamble area data is the same as transmitted preamble area data; and, if each code in the identified preamble area data has the opposite phase to each code in the transmitted preamble area data, then identifying data area data on the basis of a negative code encoding rule. The method provided in the present application enables an active pen to identify negative codes and ensures that the active pen does not experience broken lines when drawing lines on a touch control screen, enhancing the user experience.\nC: A radio frequency identification system based communication method, apparatus and system are disclosed, which are used for implementing bi-directional communication between an electronic tag and a reader in the radio frequency identification system, saving battery power consumption in an active electronic tag, and guaranteeing communication stability between the electronic tag and the reader. Wherein, the method includes: receiving data frames sent by the reader in the current checking period, analyzing the data frames and extracting frame sequence numbers from preset fields, calculating waiting time required for the current checking period to enter into a channel idle state based on the extracted frame sequence numbers, selecting one timeslot from timeslots included in the current checking period when determining the reader is in the channel idle state, and transmitting messages to the reader based on the selected timeslot.\nD: Disclosed in the embodiments of the present invention are a data processing method, a server and a device. The method comprises: a server, upon acquisition of first information sent by a client device, dividing N first data blocks to obtain M groups of data, and determining check information corresponding to each group of data; further, the server determining difference information according to a second data packet and the check information corresponding to the M groups of data, and sending the difference information to the client device, so that the client device updates a first data packet according to the difference information. In the embodiments of the present invention, the server is able to transmit the difference information to the client device without sending the entire first data packet to the client device, thereby avoiding repeated transmission of data information, reducing the loss of network traffic, and improving the efficiency of data synchronization; furthermore, in the embodiments of the present invention, a communication exchange process between the client device and the server can be executed only once, thereby reducing the pressure of network communication and reducing the network transmission traffic.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA battery monitoring apparatus (10) and system (100). The battery monitoring apparatus (10) comprises a plurality of sensors, a processing unit (41) and a PLC interface (45). The plurality of sensors comprise one or more ultrasonic sensors (11), and the plurality of sensors are used for sensing a plurality of parameters of a cell (30). The processing unit (41) is electrically connected to the plurality of sensors, and is used for receiving the plurality of parameters and determining the state of the cell (30) according to the plurality of parameters. The PLC interface (45) is electrically connected to the processing unit (41) and is electrically connected to a power line of the cell (30), and is used for reporting state information to a controller (20) by means of the power line. By means of the apparatus, on the basis of a signal transmission mode of a PLC protocol, high-speed transmission and real-time transmission of a signal can be realized, thereby reducing additional transmission lines and being convenient to implement; and a plurality of sensors including an ultrasonic sensor (11) can be integrated into a battery monitoring system to realize real-time monitoring of the state of a cell (30).\nA: A paper money detection and counting device comprises: a sensor unit (10) which is used for converting the output signals of a plurality of sensors distributed on a paper money transmission passage into a transmission state which characterizes whether paper money is present or not, each sensor corresponding to a paper money counter; a calculation unit (20) which calculates the paper money distance between the current detection position of any sensor and the front end position of the currently detected paper money according to the transmission state output by the sensor unit (10); and a control unit (30), once the paper money distance calculated by the calculation unit (20) goes beyond a paper money spacing standard value, the control unit (30) looking up the transmission states output accumulatively by the sensors currently, when it is found that at least one transmission state characterizes that the paper money state changes from existence to nonexistence, adding 1 to the count value of the paper money counter corresponding to the sensor, and when it is found that at least one transmission state characterizes that the paper money state changes from nonexistence to existence, judging that the current paper money detection is completed, and sending to the calculation unit (20) the position where the paper money distance from the front end of the currently detected paper money is closest to the paper money spacing standard value, as the front end position of the next detected paper money, so as to enable the calculation unit (20) to use the front end position of the next detected paper money as an initial position to calculate the distance of the next paper money.\nB: A modeling system for collected data of sensors on a numerical control machine tool and a method therefor. The modeling system comprises a plurality of sensors for collecting numerical control machine tool operation state data serving as multi-channel data, wherein an output end of a sensor is connected to an input end of a multi-channel sensor interface circuit, and an output end of the multi-channel sensor interface circuit is connected to a controller. The controller is a single-chip microcomputer, a PLC, an FPGA processor or an ARM processor. The plurality of sensors are multi-path temperature sensors, multi-path vibration sensors or multi-path noise sensors, wherein the multi-path temperature sensors are dispersedly mounted at a temperature measurement portion on a numerical control machine tool. The number of sensors is p, wherein p is a positive integer greater than or equal to 2, and data that is collected by each sensor and is transmitted to the controller serves as one piece of channel data. The method effectively prevents the defect in the prior art of there being no model for researching a cross correlation of multi-channel data, collected by a plurality of sensors, of an operation state of a numerical control machine tool.\nC: An energy storage device charging state fiber online monitoring system and method. The system comprises a light source (1), a polarizer (2), a polarization controller (3), a fiber circulator (4), a fiber sensor probe (5), an electrochemical supercapacitor device (6), a fiber optical spectrometer (7), and an electrochemical workstation (8). The light source (1), the polarizer (2), the polarization controller (3), the fiber circulator (4), and the fiber sensor probe (5) are sequentially connected. The fiber optical spectrometer (7) is connected to the fiber circulator (4). The electrochemical supercapacitor device (6) is connected to the electrochemical workstation (8). The fiber sensor probe (5) is disposed in the electrochemical supercapacitor device (6). The fiber sensor probe (5) can transmit an optical signal, can also act as a sensing probe to obtain light wave information, thereby performing in-situ monitoring on the magnitude of the potential of a supercapacitor during a charging/discharging process in real time and storing electric quantity information in real time, can be implanted in a small space to implement in-situ measurement, and can also simultaneously measure changes of multiple parameters in real time, such as a charge state, the potential, temperature, and other information.\nD: A paper money detection and counting device comprises: a sensor unit (10) which is used for converting the output signals of a plurality of sensors distributed on a paper money transmission passage into a transmission state which characterizes whether paper money is present or not, each sensor corresponding to a paper money counter; a calculation unit (20) which calculates the paper money distance between the current detection position of any sensor and the front end position of the currently detected paper money according to the transmission state output by the sensor unit (10); and a control unit (30), once the paper money distance calculated by the calculation unit (20) goes beyond a paper money spacing standard value, the control unit (30) looking up the transmission states output accumulatively by the sensors currently, when it is found that at least one transmission state characterizes that the paper money state changes from existence to nonexistence, adding 1 to the count value of the paper money counter corresponding to the sensor, and when it is found that at least one transmission state characterizes that the paper money state changes from nonexistence to existence, judging that the current paper money detection is completed, and sending to the calculation unit (20) the position where the paper money distance from the front end of the currently detected paper money is closest to the paper money spacing standard value, as the front end position of the next detected paper money, so as to enable the calculation unit (20) to use the front end position of the next detected paper money as an initial position to calculate the distance of the next paper money.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a human eye protection method for a projector, and a projector. The human eye protection method comprises: acquiring first image information that is output by a projector and second image information that is projected and displayed on a projection screen corresponding to the projector at the same moment; comparing the first image information with the second image information so as to determine a dark field region; carrying out, according to the dark field region, dark field processing on an image received by the projector, so that the brightness of a portion, corresponding to the dark field region, in an image output by the projector is lower than a brightness threshold value. By means of the human eye protection method for a projector provided in the present application, the eyesight of a user can be protected without affecting a projection effect.\nA: A projection and focusing method, and a projector. The projection and focusing method comprises: acquiring initial image information about a projection plane of a projector via dual cameras; according to the acquired initial image information, determining whether the flatness of the projection plane satisfies a pre-set flatness criterion; when it is determined that the flatness of the projection plane satisfies the pre-set flatness criterion, according to the initial image information, acquiring a projection distance between the projector and the projection plane and a focal length adjustment parameter corresponding to the projection distance; and performing focusing according to the focal length adjustment parameter.\nB: An interactive projection method and system. The method comprises: projecting, by an infrared projection device, and to a projection area, infrared light, and acquiring, by an infrared acquisition device, an initial infrared image in the projection area (S201); projecting, by a content projector, to the projection area, a projection image (S203); when projecting using the content projector, and an interactive operation device performs an interactive operation in a space between the infrared projecting device and the projection area, acquiring, by the infrared acquisition device, a deformed infrared image in the projection area (S204); identifying a different area different between the deformed infrared image and the initial infrared image (S205); and adjusting, according to the different area, projection content, and inputting, to the content projector, the adjusted projection content, to project, by the content projector, according to the input projection content, and in the projection area, a projection image (S206). According to the embodiment, the method and system can implement interactive projection without blocking a projected image and affecting a projection result of the projected image.\nC: The present application relates to the field of protection display, and disclosed are a projection device and a field of view adjustment method therefor. A control circuit in the projection device is used for determining a target distance between a target object and the projection device according to a light output time value of a light signal transmitting assembly and a light receiving time value of a light signal receiving assembly, adjusting a receiving field of view of the light signal receiving assembly according to the target distance, and performing brightness adjustment on a laser light source according to the target distance. Because the size of the adjusted receiving field of view is negatively correlated with the target distance, a large receiving field of view can expand a detection range of the light signal receiving assembly when the target object is close to the projection device, so that the detection range for the target object is more comprehensive, thereby improving the reliability of detecting the target object. Moreover, human eyes are effectively protected because the brightness of the laser light source can be adjusted according to the target distance.\nD: A vehicle rearview projector. One camera each is provided at where existing left and right rearview mirrors of a vehicle are located, one projector each is provided at left and right sides of a vehicle dashboard, and each projector projects images captured by the camera of the corresponding side onto a front-door glass of the corresponding side. One light sensor is provided at where the front windshield of the vehicle is located. The brightness of the projection is adjusted on the basis of changes in the intensity of external ambient light: if the external ambient light is bright, then the brightness of the images of the projectors is high, and if the external ambient light is dim, then the brightness of the images of the projectors is low. An image processor is used for reverse morphing processing of the projected images to effect lossless projection on the glasses. The vehicle rearview projector replaces existing left and right reflective rearview mirrors of the vehicle, is capable of reducing wind noise, reduces fuel consumption, is environmentally friendly, adapts to existing driving habits, and facilitates promotions and applications.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA monitor and a control method therefor, collecting and receiving devices (10, 20) and a communication method therefor. Configuration data is transmitted between the collecting device (10) and the receiving device (20) by using a first wireless communication technology. The collecting device (10) determines first pairing information and a communication channel according to the configuration data, and then the receiving device (20) transmits second pairing information on the communication channel by using a second wireless communication technology. Only when the first pairing information matches the second pairing information, the collecting device (10) is allowed to send the collected physiological signal or physiological information generated according to the physiological signal to the receiving device (20).\nA: A fingerprint lock, a fingerprint processing apparatus, and a fingerprint lock system. The fingerprint lock comprises: a first wireless communication module (10) for receiving a fingerprint recognition result; a mechanical linkage device (13) being unlocked or locked; a driving device (12) for driving the mechanical linkage device (13) to be unlocked or locked; and a processing device (11) for controlling, according to the fingerprint recognition result, the driving device (12) to drive the mechanical linkage device (13) to be unlocked or locked. The fingerprint processing apparatus comprises: a fingerprint acquisition device (20) for acquiring a fingerprint of a user; a second wireless communication module (22); and a fingerprint recognition device (21) for recognizing the acquired fingerprint of the user and sending the recognition result by means of the second wireless communication module (22). By separating the fingerprint acquisition device (20) and the fingerprint recognition device (21) from a conventional fingerprint lock, a fingerprint lock product is miniaturized, thereby expanding the application range of the fingerprint lock product.\nB: A street-lamp Internet of Things-based system and method for intelligently monitoring a manhole cover. The system comprises: a street lamp (10), a manhole cover (20) and a server (30). At least the following components are mounted on the street lamp (10): a centralized controller and a first wireless communications device. The manhole cover (20) comprises a second wireless communications device and a monitoring device; a communications transmission channel is established between the first wireless communications device and the second wireless communications device; when the monitoring device determines that the position of the manhole cover (20) deviates from a preset position, and when the distance from the preset position is greater than or equal to a preset distance threshold, a first alarm message is sent to the centralized controller by means of the communications transmission channel that is established between the first wireless communications device and the second wireless communications device; the centralized controller forwarding first alarm information to the server (30); after receiving the first alarm information that is sent by the centralized controller, the server (30) sending a notification message to a relevant department such that the relevant department performs corresponding processing.\nC: A remote control method, a remote controller (400) and a remote control system, wherein the remote control method comprises: acquiring a remote control instruction for a user to operate a remote controller (400) (101); querying whether there is pairing information, in the remote controller (400), between same and a target device, wherein the pairing information represents that communication between the remote controller (400) and the target device can be established in a first wireless communication mode (102); where there is pairing information, sending a connection request to the target device in the first wireless communication mode, so as to establish a first wireless connection with the target device based on the first wireless communication mode (103); where the first communication connection is established successfully, sending, to the target device, a remote control signal corresponding to the remote instruction and being based on the first wireless communication mode (104); and where there is no pairing information or the first communication connection is not established successfully, sending, to the target device, a remote control signal corresponding to the remote instruction and being based on a second wireless communication mode (105).\nD: A wireless medical device (01), a central monitoring station (04), and a wireless medical monitoring system and method. The system comprises a wireless medical device (01), a wireless access point (02), a wireless control unit (03) and a central monitoring station (04), wherein the wireless medical device (01) and the central monitoring station (04) access a wireless network by means of the wireless access point (02) and communicate with each other by means of the wireless network; the wireless medical device (01) collects and processes at least one physiological parameter signal of a patient to obtain physiological data of the patient, and can also monitor network state information of the wireless access point (02) where same is located at the same time to obtain first network state information; the wireless medical device (01) sends the physiological data and the first network state information to the central monitoring station (04) by means of the wireless network; and the central monitoring station (04) at least displays the physiological data and stores the first network state information.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn immersive audio rendering method and system. Said method comprises: for multiple channels of audio to be mixed which is played back by a plurality of loudspeakers, acquiring first HOA-based gains and second VBAP-based gains of the channels of audio (S1); configuring mixing weights for the channels of audio, and determining weight coefficients of the first gains and the second gains according to the mixing weights (S2); and determining mixing gains of the channels of audio according to the first gains, the second gains and respective weight coefficients, and completing audio mixing processing of multiple channels of audio by means of the mixing gains (S3). Said method can more accurately locate a sound source, thereby satisfying the requirements of immersive production and playback in a small and medium venue on site.\nA: An audio mixing method and an audio mixing apparatus. The method comprises: obtaining at least two audio input signals (S101); linearly superimposing the at least two audio input signals (S102); after linear superimposition, dividing the obtained mixed audio signal into at least two audio mixing signal-intensity zones according to audio intensity (S103); respectively shrinking the signal intensity of each audio mixing signal-intensity zone by using a corresponding shrinkage ratio, wherein the shrinkage ratio employed for the audio mixing signal-intensity zone having a higher signal intensity is smaller than the shrinkage ratio employed for the audio mixing signal-intensity zone having a lower signal intensity (S104); superimposing the at least two audio mixing signal-intensity zones after signal-intensity shrinkage, and then outputting the outcome (S105).\nB: Disclosed in the embodiments of the present application are a network connection synchronization method and apparatus, and an electronic device and a storage medium. The network connection synchronization method comprises: after being disconnected from a first audio source end, an audio playing end establishing a connection with a second audio source end; and on the basis of a volume gain mode, which is used between the audio playing end and the second audio source end, and a first volume gain, determining a first local volume gain of the second audio source end and/or a second local volume gain of the audio playing end, wherein the first volume gain is represented as a corresponding total volume gain when a connection is established with the first audio source end, which gain is stored at the audio playing end.\nC: Disclosed is a voice translation method and a device thereof, comprising: respectively acquiring second voice signals obtained by translating a first voice signal under different preset gains; comparing a semantic meaning association between each second voice signal and a pre-configured third voice signal, wherein the first voice signal is a reply signal of the third voice signal, and the second voice signal and the third voice signal belong to the same language; acquiring a second voice signal having the highest semantic meaning association with the third voice signal and a second gain corresponding thereto; determining if the second gain is identical to a first gain used in a previous translation, the first gain and the second gain belonging to the preset gains; and if so, recording and playing back the second voice signal having the highest semantic meaning association. An optimal translation is acquired by using different gains to amplify a semantic meaning association between a translation and a previous sentence, thereby facilitating use of a translation device by a user and enhancing the user experience when using the translation device.\nD: Disclosed are an audio signal processing method, a model training method, and a related apparatus. A first audio input signal is input into a machine learning model to obtain a first howling point and a corresponding first gain value; the first audio input signal is processed according to the first gain value to obtain a second audio input signal; and next, the second audio input signal is tested to obtain a second howling point, and the second howling point in the second audio input signal is then processed according to a second gain value to obtain an audio output signal. Therefore, the suppression of howling in an audio input signal is realized, and the howling is suppressed in an initial phase, and a gain loop cannot be carried out any more. Due to the correspondence of the indication of a howling point in a machine learning model and the convenience of model calculation, the above-mentioned processing process is fast and does not affect an effective audio signal, thereby improving the accuracy and efficiency of audio processing.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe embodiments of the present application disclose a housing manufacturing method, a housing and an electronic device. The housing manufacturing method comprises: providing a housing, and performing polishing treatment on the outer surface of the housing; performing oxidation treatment on the outer surface of the housing after the polishing treatment; and performing at least three times on the outer surface of the housing paint spraying treatment after the oxidation treatment, and forming at least three paint layers on the outer surface of the housing.\nA: A surface hardening process of an aluminium alloy mould for a bottle blowing machine comprises the following steps: polishing a surface of a cavity of an aluminium alloy mould, and putting the polished aluminium alloy mould into an oxidation tank with electrolyte, to perform hard anodizing; coating weak conducting film on a parting line at an edge of the cavity of the oxidized aluminium alloy mould; and polishing the surface of the cavity of the oxidized aluminium alloy mould again. The surface of the cavity of the aluminium alloy mould is oxidized to have a hardened layer, so that the surface of the cavity is more wear-proof and more corrosion-resistant, and the hardened layer is tightly jointed with the surface of the cavity, and therefore it is not easy for the hardened layer to fall off.\nB: Disclosed are an electronic device shell and a manufacturing method therefor and an electronic device. The electronic device shell comprises: a shell body, wherein the shell body is provided with a graphics/text region and a high transmission region, the high transmission region being located at the periphery of the graphics/text region; and a graphics/text layer, wherein the graphics/text layer is arranged on a first surface of the shell body, and the orthographic projection of the graphics/text layer on the shell body overlaps the orthographic projection of the graphics/text region on the shell body. The transmittance of the high transmission region is greater than or equal to 50%.\nC: A metal surface treatment method, comprising the following steps: performing dry polishing treatment on the surface of a metal product by means of a biological abrasive; purifying the surface of the polished metal product; coating the surface of the purified metal product with an aluminum film; coloring the aluminum film; and sealing the colored aluminum film. The metal product is polished by means of dry polishing, and thus, a pretreatment process is effectively reduced, and the discharge of waste water is reduced; purification is performed by means of a diluted acid solution, and thus, the consumption of acid-base chemical products is effectively reduced and the present invention is environmentally friendly; the appearance of the metal product can be effectively beautified by means of coloring; by means of sealing, the abrasion resistance and corrosion resistance of the metal product are improved; and the cost of the metal surface treatment can be effectively reduced.\nD: A method and an apparatus (100) for performing optical treatment on the surfaces of a housing. The method comprises: a laser engraving machine emits a first light beam (130) and a second light beam (140); transmits the first light beam (130) through a first light transmission region of a photomask (110) to a first adhesive surface (150) of the housing, so as to perform laser engraving on the first adhesive surface (150); transmits the second light beam (140) through a second light transmission region of the photomask (110) to a light reflective module (120); and the light reflective module (120) reflects the second light beam (140) to a second adhesive surface (160) of the housing, so as to perform laser engraving on the second adhesive surface (160), wherein an included angle is formed between the first adhesive surface (150) and the second adhesive surface (160). This method and apparatus (100) for performing optical treatment on the surfaces of a housing allow laser engraving to be performed on a bottom surface and side surfaces of the shell of a terminal device simultaneously.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA stacked printed circuit board (20). The stacked printed circuit board (20) is applied to an unmanned aerial vehicle, and comprises a first printed circuit board (21), a second printed circuit board (22), and multiple solder balls (23) connecting the first printed circuit board (21) to the second printed circuit board (22). The first printed circuit board (21) comprises multiple first solder joints (210); the second printed circuit board (22) comprises multiple second solder joints (220); each solder ball (23) is soldered between a first solder joint (210) and a corresponding second solder joint (220), so as to form, on the stacked printed circuit board (20), a first link (201) and a second link (202) which are not electrically connected to each other; the solder balls (23) forming the first link (201) and the solder balls (23) forming the second link (202) are staggered with each other. According to the present invention, the problems of an open circuit and a short circuit in printed circuit board soldering can be conveniently detected.\nA: A backlight module and a display device. The backlight module comprises a plurality of light strips (21) arranged sequentially in a first direction in a same plane (10). Each of the light strips (21) extends in a second direction in the plane (10) and comprises a printed circuit board (23) and a plurality of light sources (22). The printed circuit board (23) has a first installation surface (23a) and a second installation surface (23b) that are opposing to each other and not parallel to the plane (10). The plurality of light sources (22) are electrically connected to the printed circuit board (23) and comprise a plurality of first light sources (221) disposed on the first installation surface (23a) of the printed circuit board (23) and a plurality of second light sources (222) disposed on the second installation surface (23b). The backlight module has higher brightness.\nB: A multi-line laser module (902, 1002), a laser radar, and a movable platform. The multi-line laser module (902, 1002) comprises: a laser device (204), provided on a printed circuit board; multiple switch elements (202), provided on the printed circuit board, separately coupled to the laser device (204), and used for controlling the laser device (204) to emit multiple laser beams; and at least one capacitor element (203), provided on the printed circuit board, coupled to the laser device (204), and used for driving the laser device (204) to emit multiple laser beams. The laser device (204) comprises multiple lasers (201); the multiple lasers (201) form at least two discharge loops on the printed circuit board; each discharge loop comprises: at least one first laser (201) in the multiple lasers (201), and the switch element (202) and the capacitor element (203) coupled to the at least one first laser (201); a difference between loop equivalent inductances corresponding to any two discharge loops is less than a preset value.\nC: A touchscreen, comprising: a display unit, which comprises an upper substrate (130); a lower substrate (110), the lower substrate (110) being provided thereon with a plurality of thin film transistors, a drive circuit (210) and a printed circuit board (220), the plurality of thin film transistors being electrically connected to the drive circuit (210), and the drive circuit (210) being electrically connected to the printed circuit board (220); a touch unit (140), comprising a first touch electrode (141), the first touch electrode (141) being electrically connected to the printed circuit board (220) by means of first leads (180, 380); a second touch electrode (142) electrically insulated from the first touch electrode (141), the second touch electrode (142) being electrically connected to the printed circuit board (220) by means of second leads (190, 390), wherein the first leads (180, 380) are electrically connected to the printed circuit board (220) by spanning over the space between the printed circuit board (220) and the first touch electrode (141), and the second leads (190, 390) are electrically connected to the printed circuit board (220) by spanning over the space between the printed circuit board (220) and the second touch electrode (142). Thus, the present invention has the advantage of reducing cost.\nD: The present invention provides a printed circuit board and a display device. The printed circuit board comprises a first wire layer, a reference ground layer disposed above and insulated from the first wire layer, and a third wire layer disposed above and insulated from the reference ground layer. The first wire layer comprises a GOA signal wire group, a data signal wire group, and a signal isolation wire disposed on the same plane. The GOA signal wire group and the data signal wire group are respectively located on both sides of the signal isolation wire. The signal interference between the wire layers in the printed circuit board can be avoided, and the stable operation of the display device is effective ensured.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA rotary ditcher for agricultural machinery, comprising a ditcher structure (1), a telescopic rod (8), and a diesel engine. The ditcher structure (1) further comprises a rack (2) and a ditching body (3); the diesel engine is fixedly mounted by means of the rack (2); the diesel engine is connected to the ditching body (3) by means of a belt; the ditching body (3) is rotatably mounted by means of the rack (2); the rack (2) is fixedly mounted by means of an external transportation device; the rack (2) comprises a rotating shaft (5), a support rod (6), and a fixing frame (7); the upper end of the telescopic rod (8) is rotatably mounted by means of the fixing frame (7), and the lower end of the telescopic rod (8) is rotatably mounted by means of the support rod (6); the telescopic rod (8) is electrically connected by means of an external power supply; the rear end of the support rod (6) is rotatably mounted on a side end of the fixing frame (7); the ditching body (3) comprises a fixing disc (9), a sliding groove (10), a discharge spout (11), a fixing block (12), a shovel head (13), and a belt pulley (14). By increasing the soil discharge height and distance, the rotary ditcher reduces the probability of discharged soil falling back into a ditch, and thus improves the ditching efficiency.\nA: A seeding and ditching connection structure, comprising a mounting support (1), and a seeding mechanism (2) and a ditching mechanism (3) that are mounted on the mounting support (1). The seeding mechanism (2) is detachably mounted on the mounting support (1); the seeding mechanism (2) comprises a seeder mounting rod (21) and multiple seeders (22) mounted on the seeder mounting rod (21); a connection support (41) is provided on the mounting support (1); a mounting portion (42) is provided on the end of the connection support (41) distant from the mounting support (1); a mounting recess (43) having an upward opening and used for mounting the seeder mounting rod (41) is formed on the mounting portion (42); a clamping plate member (44) and a locking structure (45) for locking the clamping plate member (44) are further comprised; a clamping opening (441) is formed on the clamping plate member (44); a receiving region for receiving the clamping plate member (44) is formed between the mounting portion (42) and the mounting support (1). The connection structure improves the dismounting and mounting efficiency when a single person dismounts and mounts the seeding mechanism.\nB: A surface runoff ditch digging apparatus for a wastewater treatment wetland, comprising an elliptical main supporting frame (1), front chopping wheels (4), and a ditch digging plate (10); there are two sets of front chopping wheels (4), and each set of front chopping wheels (4) is separately fixed on a shaft; the two shafts form a V shape; a V-shaped sharp corner is mounted at the front end of the main supporting frame (1); the other end of each shaft is separately mounted on a supporting bearing (5); the supporting bearings (5) are symmetrically mounted on the main supporting frame (1); a drive device (6) for the front chopping wheels (4) is mounted at the front end of the main supporting frame (1); wheels (3) are further mounted on the main supporting frame (1); the wheels (3) support the main supporting frame (1); the wheels (3) are driven by a drive mechanism (7) so as to drive the main supporting frame (1) to move on the surface of a wastewater treatment wetland; the ditch digging plate (10) is mounted at the rear end of the main supporting frame (1) by means of a supporting rod (11). By means of the surface runoff ditch digging apparatus for the wastewater treatment wetland, the front chopping wheels (4) first clean vegetation on a wetland, and then the ditch digging plate (10) is used to dig a ditch, and thus, automatic operation is achieved without manual operation.\nC: A convenient and sanitary defecation device for the aged lying in bed. The defecation device comprises a defecation structure (1) for the aged lying in bed; the defecation structure comprises a support (2) and a peristaltic main body (3); the peristaltic main body (3) is rotatably mounted by means of the support (2); the support (2) comprises an handle (4), a connecting rod (5), a rotating shaft (6), a support body (7), and a leather hose (8); the front end of the handle (4) is rotatably mounted to the upper end of the connecting rod (5); the lower end of the connecting rod (5) is fixedly connected to the rear end of the rotating shaft (6); the rotating shaft (6) is rotatably mounted to the rear end of the support body (7) by means of insertion; the rotating shaft (6) runs through the support body (7); the upper part of the leather hose (8) is fixedly mounted by means of the support body (7); the peristaltic main body (3) comprises a first rotating disc (12), first magnets (13), a U-shaped pressing ring (14), a second rotating disc (16), and second magnets (17); the first magnets (13) are uniformly and fixedly connected to the front end of the first rotating disc (12); the first magnets (13) are embedded into the inner wall of the first rotating disc (12); the first rotating disc (12) is located on the inner side of the U-shaped pressing ring (14). The device allows the defecation work to be manually carried out, and thus use requirements can be better satisfied.\nD: A sprayer for an agricultural machine, comprising a spraying structure (1) for a fruit garden. The structure comprises a first motor (6) and a second motor (16), the first motor (6) and the second motor (16) being electrically connected by means of an external power supply. The structure further comprises a base (2), a middle tube (3) and a top tube (4), the top tube (4) being slidably mounted on an inner wall of the middle tube (3), the middle tube (3) being slidably mounted on an upper portion of an inner wall of the base (2), and the base (2) comprising a first gear ring (5), a cylindrical housing (7), a gas receiving tube (8) and a water receiving tube (10). The first gear ring is rotatably mounted on an upper end of the cylindrical housing, the first motor is fixedly mounted by means of the cylindrical housing, a rotor of the first motor is meshed and mounted on an outer end of the first gear ring, the gas receiving tube is fixed on a lower outer wall of the cylindrical housing, an inner space of the cylindrical housing is connected to an inner space of the gas receiving tube, and the water receiving tube penetrates through the cylindrical housing. The solution can increase the basic height of the spraying, and better satisfy the use requirements.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed in the present invention are an avermectin B2a ethylenic derivative, and a preparation method therefor and the use thereof. The structural formula of the avermectin B2a ethylenic derivative is as represented by formula I. The compound has an efficient pesticidal activity against a plurality of targets, and in particular has a pesticidal activity against Spodoptera exigua, diamondback moths, Plutella xylostella, root knot nematodes and the like for crops.\nA: Provided are a preparation and use of pyrrole and dihydropyrrole fused ring compound having insecticidal activity. Particularly, the present invention relates to a compound as represented by general formula (A) or the optical isomer, cis-trans isomer or pesticidally acceptable salt of the compound, and a preparation method thereof. The present invention also relates to an agricultural composition comprising the compound, the optical isomer, the cis-trans isomer or the pesticidally acceptable salt, and a use of the agricultural composition. The compound and the derivatives thereof have high insecticidal activity for homoptera and lepidoptera agricultural and forestry pests such as aphid, plant hopper, whitefly, leafhopper, thrips, cotton bollworm, cabbage worm, cabbage moth, prodenia litura and armyworm and the like.\nB: The present invention relates to the technical field of agricultural chemicals and preparation. Specifically, disclosed is a purification method for 4"-(s)-methylamino abamectin B2a benzoate. The purification method comprises the following steps: adding a crude product of methylamino abamectin B2a/2b benzoate to methyl tert-butyl ether, heating and dissolving, dropwise adding a mixed solution of tert-butanol and n-butyl ether, cooling and filtering after the dropwise adding, and cooling and crystallizing an obtained filtrate to obtain a product of 4"-(s)-methylamino abamectin B2a benzoate. According to the purification method provided by the present invention, by selecting the mixed solution of methyl tert-butyl ether, tert-butanol and n-butyl ether as a crystallization solvent, and in coordination with twice cooling and crystallization, the product of 4"-(s)-methylamino abamectin B2a benzoate having S-configured methylamino at bit 4" and having a content of 98% or more is obtained, thereby facilitating improvement of the insecticidal activity of related preparations, and achieving a wide application prospect.\nC: Disclosed in the present invention are the preparation method and use of a compound of 2,5-disubstituted-3-nitroimino-1,2,4-triazoline and its precursor nitroideneamino-guanidine compound. Their structural formulae are shown as formulae I and VI, wherein R1 is a saturated or unsaturated C1-C10 aliphatic alkyl, saturated or unsaturated C1-C10 fluorine substituted aliphatic alkyl, substituted or unsubstituted phenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted thiazole, substituted or unsubstituted pyrazolyl, substituted or unsubstituted oxazolyl, substituted or unsubstituted isoxazolyl, or tetrahydrofuran; R2 is a hydrogen, saturated or unsaturated C1-C10 aliphatic alkyl, substituted or unsubstituted phenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted furyl, substituted or unsubstituted naphthyl. Tests on pesticidal activity demonstrate that compounds of formulae (I) and (VI) have a very high prevention effect against crop pests, such as aphids, plant hoppers, tetranychid mites, cotton bollworm and beet armyworm, etc., and can therefore be used as a plant pesticide.\nD: The present invention provides a kind of nitroguanidine compounds, its preparation method and uses. The structure of the compound is as follows of formular I, in which R 1  is saturated or unsaturated C 1-10  aliphatic alkyl, benzyl or substituted benzyl, halogenated picolyl, halogenated thiazylmethyl, tetrahydrofuryl methyl or oxazolyl methyl; R 2  is hydrogen, saturated or unsaturated C 1-5  aliphatic alkyl, phenyl or substituted phenyl, pyridyl or substituted pyridyl; R 3 \n   is hydrogen, saturated or unsaturated C 1-10  aliphatic alkyl, furyl, phenyl or substituted phenyl, benzyl or substituted benzyl. It testifies in the experiment of the insecticidal activity that the nitroguanidine compounds of formular I have good control efficiency to the crop pests of aphides and striatellus and cotton bollworm and asparagus caterpillar and so on, and that the compounds can be used as botanical insecticides.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a method for preparing shredded tea, wherein same is a segmented drying method, comprising the following steps: removing the stalks of tea leaves, then successively performing first drying, second drying, third drying, shredding and fourth drying to obtain a product with a moisture content of 5-15%. Further provided is the use of the product prepared by the preparation method as described above in the fields of smoking rolled cigarette-like structures and/or brewed drinks.\nA: A composition, a preparation method, and a tea cartridge. The present invention relates to the field of tea cartridge articles. The composition comprises the following raw materials: tea leaves, cannabidiol, and a smoke-producing agent. A preparation method of the above composition. A tea cartridge. A smoke-producing portion of the tea cartridge comprises the above composition and/or a product obtained by means of the above preparation method. The tea cartridge prepared by compounding tea and cannabidiol has a refreshing effect as achieved by smoking a traditional cigarette, and enables provision of diverse forms of products, thereby meeting diverse consumption demands of different consumers. The composition, the preparation method and the tea cartridge solve the problems in the prior art in which the limited types of cartridge products cannot meet diverse consumption demands of different consumers.\nB: A low carbon environmentally friendly cut tobacco low temperature expansion process, comprising the following steps: making cut tobacco raw material absorb water to obtain wet expanded cut tobacco; dispersing the wet expanded cut tobacco in a liquid medium and freezing; extracting the frozen cut tobacco and implementing freeze-drying; and rehydrating the dried cut tobacco to the required water content to obtain expanded cut tobacco. The process is characterised by: dispersing the cut tobacco after water absorption in a liquid medium and freezing can prevent clumping of cut tobacco with a high water content, such that the frozen cut tobacco is in a puffy dispersed state, greatly increasing the subsequent drying efficiency. The preparation method conditions are mild and environmentally friendly, industrial production is easy to implement, and the expanded cut tobacco obtained by means of said method has an adjustable fill rate and good dispersibility.\nC: Disclosed is an efficient preparation method for expanded shag. The preparation method comprises the following steps: a raw shag material absorbing water to obtain swollen shag; the swollen shag making contact and mixing with a water soluble liquid medium; drying the shag after contact and mixing with the liquid medium; and re-hydrating the dried shag to achieve a required water content and obtaining the expanded shag. The features of the method of the present invention comprise the following: A mixed solution is formed by contact between a liquid medium and water in the shag, and changing the permeability of the shag by the mixed solution can eliminate or reduce drying shrinkage stress caused by water during the drying process thereof, so as to maintain the expansion volume of the shag. The process is fast and effective with mild reaction conditions. An expansion rate of the expanded shag prepared by the method is adjustable. The efficient method achieves continuous production of expanded shag.\nD: Disclosed is a tea-containing composition. The raw materials include, in parts by mass, 1-50 parts of tea leaves and 1-50 parts of chrysanthemum plants. The chrysanthemum plants are one or more selected from chrysanthemum, atractylodes macrocephala, snow lotus and safflower. Also disclosed are a preparation method of the composition and applications of the prepared product in the field of cigarette products, electronic cigarette cartridges or brew drink products. Through the combination of tea leaves and the chrysanthemum plants, the fragrance of burning the chrysanthemum plants can effectively neutralize the bitter taste from burning tea leaves.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA natural plant product compound sweetener, prepared from momordica grosvenori dietary fiber, mogroside V, fructo-oligosaccharide, erythritol, palatinitol and malic acid by solution in water, filtration, vacuum concentration and spray drying.\nA: A method for preparing compound sweetener particles of xylose and sucrose, wherein the compound sweetener particles comprise sucrose and xylose at a mass ratio of 40-60 : 40-60, and the proportion of particles with a particle size of 10-30 mesh in the compound sweetener particles is ≥ 70%. The method comprises the following steps: respectively crushing sucrose crystals and xylose crystals into powder, and uniformly mixing the obtained sucrose powder and the obtained xylose powder to obtain a mixed sugar powder, wherein the proportion of particles with a particle size below 100 mesh in the sucrose powder and in the xylose powder is 70% or more; dissolving sucrose crystals or mixed crystals of sucrose crystals and xylose crystals so as to prepare a sugar solution with a mass concentration of 40-60% and a viscosity of 3.5-40 mPa•s; and spraying the sugar solution, which acts as an adhesive, in an atomized form into the mixed sugar powder in a boiling state by means of a peristaltic pump for granulation, so as to obtain compound sweetener particles. By means of the method, xylose and sucrose are uniformly mixed, and the mixing ratio of xylose to sucrose is increased.\nB: A sweetener comprising total Momordica grosvenori glycoside and preparation method thereof, said sweetener comprises total Momordica grosvenori glycoside, which comprises mogroside V. The sweetener is obtained by extracting Momordica grosvenori with pectinase, macroporous resin adsorption, and neutral alumina column decolorization. The composition is pale yellow or white, and is free of herbal and bitter taste of the Momordica grosvenori itself.\nC: A solid  siraitia grosvenorii  theanine compound condiment, comprising a  siraitia grosvenorii  extract, theanine, a yeast extract, hydrolyzed animal protein, mushroom powder, a white kidney bean extract, and L-alanine.The preparation method comprises: thoroughly mixing the raw materials, putting the mixture into a granulator, and spraying water to form granules, and performing vacuum drying to obtain the condiment.\nD: The present invention provides a method for producing a Siraitia grosvenorii extract using immobilized enzyme technology, comprising the following steps: hot water extraction, ceramic membrane filtration, desalination, decoloration, immobilized enzyme enzymolysis, and concentration. If necessary, a part of the enzymatic hydrolysate obtained in step (4) can be filtered by using a nanofiltration membrane, a Siraitia grosvenorii concentrated juice without mogrosides is obtained from the permeate of the nanofiltration membrane, and dry powder of a Siraitia grosvenorii extract is obtained from components retained by the nanofiltration membrane. The method of the present invention can simultaneously produce multiple kinds of liquid and solid Siraitia grosvenorii extract products, thereby satisfying various requirements of the market, and the yield of mogroside V is high. The content of mogroside V in the Siraitia grosvenorii concentrated juice reaches 3 to 8 wt%, and the mass content of mogroside V of the dry powder of the Siraitia grosvenorii extract is 40 to 60 wt%.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA cooling and ventilation device (10), a cooling hat (20), a cooling shoe and a cooling backpack. The cooling and ventilation device (10) comprises: a housing (100), a ventilation assembly (200), a heat conduction frame (300) and a cooling assembly (400). Two ends of the housing (100) are respectively provided with an air inlet (110) and an air outlet (120). The ventilation assembly (200) is arranged at the position of the air inlet (110), and is used for bringing air into the housing (100). The heat conduction frame (300) is arranged within the housing (100). The cooling assembly (400) comprises semiconductor cooling plates (410) and heat conduction film layers (420), the semiconductor cooling plates (410) being arranged on the heat conduction frame (300), the heat conduction film layers (420) being attached to the side surfaces of the semiconductor cooling plates (410) away from the heat conduction frame (300). When the semiconductor cooling plates (410) are turned on, the sides of the semiconductor cooling plates (410) connected to the heat conduction film layers (420) are cooling ends, and heat in the air entering from the external environment can be absorbed by the heat conduction frame (300) in a rapid and timely manner. Thus, a cooling operation is performed on the air entering from the external environment in a rapid and timely manner, thereby ensuring that an airflow discharged from the air outlet (120) is a cold airflow.\nA: A neck-mounted fan, comprising a neck-worn frame, a fan and a cooling component accommodated within the neck-worn frame. An air guiding element is provided within the neck-worn frame. The air guiding element divides the space within the neck-worn frame to form a first air duct and a second air duct. An air outlet is provided on a sidewall of the first air duct. The cooling component is arranged within the second air duct. The cooling component comprises a semiconductor cooling plate. A cold end of the semiconductor cooling plate is attached to a sidewall of the second air duct. The neck-worn frame is provided with cooling holes at the part corresponding to the second air duct. A portion of the airflow produced by the fan is introduced into the first air duct and then blown out from the air outlet, another portion is introduced into the second air duct and then blown out from the cooling holes carrying the heat generated by the cooling component while working.\nB: A smart solar cooling and ventilation device, a smart solar cooling hat, a smart solar cooling backpack, and smart power-driven air circulating shoes. The smart solar cooling and ventilation device comprises a solar panel (14), electronic wires (111), a base (19), a cooling means, a bracket (18), and a fan (11). A container is provided on the base (19). A battery and electronic circuits (110) are provided on the bottom of the container, and the triangular bracket (18) is provided in the container. A cooling chamber (17) is provided within the bracket (18), and an electronic cooling part (16) is fixed outside of the bracket (18). A housing (12) is provided on the periphery of the fan (11), the base (19) is arranged at the bottom of the housing (12), and a fine-tunable turning structure (13) is provided at the joint of the housing (12) and the base (19). The cooling and ventilation device can be recharged by using solar energy in a timely manner, and has wide applications in daily life, thereby avoiding inconvenience caused by sweating in hot days.\nC: A semiconductor refrigeration electronic icepack comprising an icepack main body (1). A thermally-conductive liquid is provided within the icepack main body (1). Also comprised is an external mobile refrigeration source box (4). The interior of the mobile refrigeration source box (4) is partitioned into a heat-dissipation area and an enclosed refrigeration area by a semiconductor refrigeration plate (7) and a connecting plate connected at two ends of the semiconductor refrigeration plate (7). A heat exchange water-cooling head (5) is arranged on the semiconductor refrigeration plate (7) at the refrigeration area. The thermally-conductive liquid in the icepack main body (1) is connected to the heat exchange water-cooling head (5) via a liquid inlet tube (3) and is connected to a water pump (9) and the heat exchange water-cooling head (5) via a liquid outlet tube (31). A heat sink (8) is arranged on the semiconductor refrigeration plate (7) at the heat-dissipation area. A ventilation hole (10) is provided on a sidewall of the mobile refrigeration source box (4) corresponding to the heat-dissipation area. The semiconductor refrigeration plate (7) and the water pump (9) are provided with a power supply connection cable. The mobile refrigeration source box (4) is convenient to carry. The semiconductor refrigeration plate (7) and the water pump (9) are powered up to allow the refrigeration source box to start working, thereby allowing the thermally-conductive liquid in the icepack main body (1) to exchange heat with the refrigeration plate (7) in the refrigeration source box, thus reducing the temperature of the electronic icepack.\nD: An air conditioning indoor unit (10) having an outside air supply, the unit comprising a housing (100) and an outside air device (200). The outside air device (200) is provided at an end portion of a side of the housing (100), and comprises an air inlet module (210) and a fan module (220) in communication with the air inlet module (210). An air inlet cavity (2101) is defined within the air inlet module (210). An air inlet (211) is provided at the bottom and toward the rear of the air inlet module (210), and used to introduce outdoor air into the air inlet cavity (2101). An upper portion of the air inlet cavity (2101) is provided with a thermoelectric cooler (212). A cold side of the thermoelectric cooler (212) is embedded in the air inlet cavity (2101), and a hot side thereof is provided outside of the air inlet cavity (2101) and is connected to a heat sink device. The fan module (220) delivers outside air introduced by the air inlet module (210) into an indoor space. The outside air is cooled before being introduced into the indoor space by means of installing the thermoelectric cooler (212) within the outside air device (200), thereby effectively improving the cooling effect of an air conditioner, and increasing the comfort level of a user during use.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA watchband buckle (1000), a watchband (4000) and a wearable device. The watchband buckle (1000) comprises a first buckle member (1), a second buckle member (2) rotatably mounted on the first buckle member (1), a cover plate (3) rotatably mounted at an end of the second buckle member (2) that is away from the first buckle member (1), a clamping hook member (4) slidably mounted on the cover plate (3), and an elastic member (5) mounted between the cover plate (3) and the clamping hook member (4), wherein the elastic member (5) can enable the clamping hook member (4) to keep clamping connection with an inner wall of a clamping hook hole (11); and the cover plate (3) is provided with a first accommodating groove (35) used for accommodating the first buckle member (1) and the second buckle member (2). When the watchband buckle (1000) is applied to a wearable device such as a watch and a bracelet, and the wearable device is worn on a wrist, the surface of a side of the first buckle member (1) that is away from the cover plate (3) is in contact with skin of the wrist. The clamping hook member (4) is clamped to the inner wall of the clamping hook hole (11) in the first buckle member (1), such that the cover plate (3) and the first buckle member (1) are relatively fixed. Thus, there is no protruding structure at the first buckle member (1), which is in contact with the skin of the wrist, such that the situation whereby wearing comfort is influenced due to a protruding structure abutting against the skin of the wrist is prevented.\nA: A fixing assembly and clothing. The fixing assembly comprises: a first fastener (100) comprising a base (110) and a first magnet (120) fixed to the base (110); a second fastener (200) comprising a base plate (210) and a second magnet (220) fixed to the base plate (210), the first fastener (100) and the second fastener (200) being attracted by means of the first magnet (120) and the second magnet (220); and a positioning module configured to prevent relative movement between the first fastener (100) and the second fastener (200) which are attracted. The first fastener (100) and the second fastener (200) can be respectively arranged on a trousers body and a suspender of riding trousers. Because the fixing assembly achieves attraction by means of the magnets (120, 220), when a user roughly moves the fastener on the suspender to the other fastener on the trousers body, the first fastener (100) and the second fastener (200) can be attracted by means of a magnetic attraction effect; furthermore, in combination with the positioning module, the first fastener (100) and the second fastener (200) which are attracted are relatively fixed. The fixing assembly can enable connection between the trousers body and the suspender of the riding trousers more convenient.\nB: A new magnetic fastener, comprising a first fastening element (1) and a second fastening element (2). The first fastening element (1) is separably installed on the second fastening element (2). Provided inside of the first fastening element (1) is a first magnetic element (10). A second magnetic element (20a) and a third magnetic element (20b) are arranged adjacently inside of the second fastening element (2). The second magnetic element (20a) and the third magnetic element (20b) can move together linearly in parallel to the first magnetic element (10). When the second magnetic element (20a) faces the first magnetic element (10), the opposite polarities of the facing sides cause the first fastening element (1) and the second fastening element (2) to fasten together due to the mutual attraction between the first magnetic element (10) and the second magnetic element (20a). When the third magnetic element (20b) faces the first magnetic element (10), the same polarity of the facing sides causes the first fastening element (1) and the second fastening element (2) to separate due to the mutual repulsion between the first magnetic element (10) and the third magnetic element (20b). The new magnetic fastener fastens tightly and is convenient to operate.\nC: A watch band and a wearable device. The wearable device comprises a main body and a watch band. The watch band includes a first watch band (1) and a second watch band (2), the first watch band (1) comprising a fixing band (13), connecting rods (12) and a buckling band (11); a locking protrusion (10) is provided at one end of the buckling band (11); there are two connecting rods (12), and the two connecting rods are respectively located at ends of two sides of the first watch band (1) and are connected between the buckling band (11) and the fixing band (13); and the buckling band (11) and the fixing band (13) are spaced apart, and a through hole (14) is formed between the two connecting rods (12). When the first watch band (1) is buckled to the second watch band (2), the second watch band (2) passes through the through hole (14) and is stacked between the buckling band (11) and the fixing band (13), and the locking protrusion (10) is buckled into a buckling hole (20) of the second watch band (2). When wearing, the locking protrusion (10) is pressed into the buckling hole (20), and the second watch band (2) passes through the through hole (14) of the first watch band (1), so that the wearing is convenient, and the structure is simple; and the two connecting rods (12) have a connection function, and the two connecting rods (12) are respectively located at ends of the two sides of the watch band, so that the two connecting rods can decorate the watch band as decorative members of the watch band, such that the whole watch band is concise and beautiful in appearance.\nD: A bra fastener, comprising a first part (10) and a second part (20). The first part (10) comprises a first connecting band (11) and a plurality of first fastening pieces (12) which are disposed at intervals at the interior of the first connecting band (11) along the length direction of the first connecting band (11), and one surface of the first connecting band (11) is provided with a through hole (111) at a position corresponding to each first fastening piece (12). The second part (20) comprises a second connecting band (21) and a second fastening piece (22) disposed at the interior of the second connecting band (21). The second fastening piece (22) partially extends from one surface of the second connecting band (21) and may pass through one of the through holes (111) on the first connecting band (11) so as to be buckled to a first fastening piece (12) corresponding to the through hole (111). When the second fastening piece (22) is partially buckled to the first fastening piece (12), the second connecting band (21) covers the first connecting band (11).", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are an intelligent toilet mirror, a multifunctional and safe intelligent toilet mirror, and a twin-direction rotating mirror. The intelligent toilet mirror comprises: a toilet mirror body (10) and a base (20), wherein video signal equipment (30) and light-control equipment (40) are arranged on the toilet mirror body (10), and a wireless charging chip module (22), a temperature sensing module and a humidity sensing module are arranged on the base (20), so that a visual signal function, a sensing light-control function, a wireless charging function, and a temperature and humidity detection function are achieved. The multifunctional and safe intelligent toilet mirror comprises: a shell (1), a mirror face (123), and a mirror support (11), wherein the shell (1) is provided with a control plate, a single chip microcomputer, a camera, and an illumination module, the single chip microcomputer and the camera are electrically connected to the control plate, the shell (1) is further provided with a sensing piece connected to the single chip microcomputer and used for acquiring the rotating angle of the shell (1) relative to the mirror support (11), the control plate receives a signal of the single chip microcomputer so as to enable the camera to be shut down or started to protect the privacy of a user, and the camera is prevented from being controlled by a hacker. The twin-direction rotating mirror comprises: a shell (1), a mirror face (123), and a mirror support (11), wherein the mirror support (11) and the shell (1) are in a pivot joint through a rotating shaft assembly, the rotating shaft assembly comprises a wiring rotating shaft piece and a positioning rotating shaft piece, the two ends of the shell (1) are in a pivot joint with the two ends of the mirror support (11) through the wiring rotating shaft piece and the positioning rotating shaft piece, so that the toilet mirror achieves rotation within a certain angle range, and then the user can conveniently select the proper angle for use.\nA: Disclosed are a reflection module and a periscopic camera. The reflection module comprises: a housing (1); a base (2); a prism support (3); a prism (4); a first rotary shaft (5) for rotationally connecting the housing (1) and the base (2); a second rotary shaft (6) for rotationally connecting the base (2) and the prism support (3); a first driving assembly (7) for driving the base (2) to rotate around the first rotary shaft (5); and a second driving assembly (8) for driving the prism support (3) to rotate around the second rotary shaft (6), wherein the first driving assembly (7) comprises a first coil (71) fixed relative to the housing (1), and first magnetic steel (73) fixed to the base (2); and the second driving assembly (8) comprises a second coil (81) fixed relative to the housing (1), and second magnetic steel (83) fixed to the prism support (3). The reflection module further comprises a first magnetic conductive plate (a), which is arranged on a side of the first coil (71) away from the first magnetic steel (73) and is fixed relative to the housing (1), and a second magnetic conductive plate (b), which is arranged on a side of the second coil (81) away from the second magnetic steel (83) and is fixed relative to the housing (1). The reflection module and the periscopic camera can reduce or even avoid the influence of magnetic interference on the rotation and resetting of the base (2) and the prism support (3).\nB: Disclosed is an intelligent monitoring lamp (100), comprising a base (11), an illuminating lamp (12), a sensing module (13), a camera (14) and a controller, wherein the controller is internally provided with a sensing control circuit, a camera control circuit, a wireless module, a sending circuit used to send reminder information to a remote device and used to send an image photographed by the camera (14) to the remote device, a receiving circuit used to receive a view instruction of the remote device so that the camera control circuit controls the operation of the camera (14), and a processor. According to the present solution, the approach of a human body is sensed by means of the sensing module (13), so as to control the illumination of the illuminating lamp (12), and at the same time, the camera (14) photographs an external scene, and the effect of the photographed image is good; and reminder information is sent to an externally connected remote device, such as a smart phone, and the photographed image is sent to the remote device, such that a user learns of a monitoring condition and an environment trend of a monitoring area in time, and the monitoring effect is good.\nC: A handle terminal, comprising a housing (10). A handle position (20) or a handle mounting position is provided on the housing (10); the housing (10) is provided with a display screen (11) and a camera module (35) having a panoramic photographing function; an intelligent chip (33) having a multimedia playback function is provided within the housing (10), the intelligent chip (33) having a processor (334); the intelligent chip (33) is connected to the camera module (35). By providing a camera module (35) and an intelligent chip (33) having a multimedia playback function on a handle of a public transport system, the handle terminal is endowed with an intelligent interactive function and a panoramic photographing function, for facilitating internal monitoring management in the public transport system and providing entertainment and also other considerate services for a passenger.\nD: Disclosed is a cosmetic mirror, comprising a cosmetic mirror body, a mirror rod, and a base that is detachably connected to the mirror rod and on which a main power supply system is disposed; a mirror rod main body and an adhesion structure cooperating with the mirror rod main body are provided on the mirror rod; the adhesion structure comprises an electrode circuit board on which a grounding pointer, at least two power supply pointers and at least two data pin pointers are disposed; a conductive coil cooperating with the grounding pointer, the power supply pointers and the data pin pointers is provided on the base; the cosmetic mirror body comprises a back housing, a mirror body, and an infrared control mode-based or a touch control mode-based control system; the mirror body and the control system are both installed on the back housing; a back groove is further formed on the side of the back housing opposite to the side on which the mirror body is installed; the mirror rod is cooperatively installed in the back groove by means of a hinge; multi-angle pitching operation can be achieved between the mirror rod and the cosmetic mirror body by means of the hinge, which is convenient for use by a user; meanwhile, the base and the mirror rod are designed to employ a detachable connecting structure, which is convenient for storage by the user.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA chair capable of being used as a bed, comprising a seat (1), a back (2) rotatably connected to one end of the seat (1), a headrest part (3) rotatably connected to the top of the back (2), and an angle adjustment device mounted on the back (2). The angle adjustment device comprises a connecting rod holder (4) movably engaged with the back (2), a locking mechanism (5) engaged with the back (2) and capable of moving back and forth along a height direction of the back (2), and a first connecting rod (6) supported between the locking mechanism (5) and the seat (1). The headrest part (3) is provided with an engagement part (7) that protrudes to one side of the top of the connecting rod holder (4) and drives the headrest part (3) to rotate towards the seat (1) under the pushing caused by the movement of the connecting rod holder (4). The back (2) can reciprocate between a first position and a second position relative to the seat (1). When the back (2) is at the first position, the back (2) is inclined relative to or perpendicular to the seat (1), and the headrest part (3) is parallel to the back (2); when the back (2) is at the second position, the back (2) is parallel to the seat (1), the locking mechanism (5) gets close to the headrest part (3), and the headrest part (3) is inclined relative to or perpendicular to the back (2). The chair can implement quick bed/chair switching, and is simple to operate.\nA: Disclosed is an office lounge chair, comprising chair legs (21), and a chair seat (1) and a chair back (22) which are arranged above the chair legs (21), wherein the chair seat (1) is provided with a footrest adjustment mechanism, with the front end of the footrest adjustment mechanism being provided with a foot pad body (2); the footrest adjustment mechanism comprises at least two telescopic rods (4) fixed in the chair seat (1), with the front ends of the telescopic rods (4) extending into the foot pad body (2) and being fixedly connected to the foot pad body (2), and the telescopic rods (4) extending or retracting and driving the foot pad body (2) to be unfolded or folded; and the front end of the chair seat (1) is further provided with an accommodation space, and when the foot pad body (2) is in a folded state, the foot pad body (2) is collapsed in the accommodation space. The footrest adjustment mechanism of the foot pad body (2) has a simple structure, and is convenient to assemble. In addition, the chair back (22) is provided with a back rest (23), thereby greatly improving the human body comfort.\nB: A multi-function safety seat for a driver seat of a vehicle, having a seat surface (1), a seat back (2), and a headrest (3). The seat back (2) is movably provided behind the seat surface (1), and the headrest (3) is provided above the seat back (2). A steering device is provided on the rear side of the seat back (2), and the steering device comprises a height regulator (4) and an angle regulator (5). The angle regulator (5) is provided with two swing arms (5-2, 5-3) which can rotate relative to each other around the axis. The tail end of one swing arm (5-2) is directly and fixedly connected to the rear side of the seat surface (1). The tail end of the other swing arm (5-3) is fixedly connected to the tail end of the height regulator (4). The height regulator (4) is fixedly connected to the bottom end of the seat back (2) and can regulate the movement of the seat back (2) in the up-down direction with respect to the seat surface (1). The height regulator (4) is a screw drive device which is provided with a screw sleeve (4-1), a screw (4-2), and a stepping motor (4-3). The screw sleeve (4-1) is a sleeve with internal threads, the mating screw (4-2) is provided on the screw sleeve (4-1), and the tail end of the screw (4-2) is dynamically connected to the stepping motor (4-3).\nC: An adjustable seat headrest mounted on a backrest comprises supports (1). The support (1) is provided with a headrest plate (2) at an upper end thereof and a fixing plate (7) at a right end thereof. A soft bag (4) is provided at the exterior of the headrest plate (2). A lower end of the fixing plate (7) is connected, by means of a toothed rod (6), to a lower end of the headrest plate (2). A movable sleeve (8) is sleeved onto the support (1). The movable sleeve (8) is connected to a U-shaped support (10) by means of a movable support (9). There are two of each of the support (1), the movable sleeve (8) and the movable support (9), respectively. A horizontal adjustment motor (5) is disposed at a lower end of one of the movable sleeves (8). An output terminal of the horizontal adjustment motor (5) is provided with a gear (17) engaging the toothed rod (6). The U-shaped support (10) is provided with a headrest control center (3) thereon, and has one end provided with a gear support (11) connected to a stationary gear (18) and the other end hinged with a hinged angle-adjustable support (14). The interior of the gear support (11) is provided with an angle-adjusting screw (12) engaging the stationary gear (18). The angle-adjusting screw (12) is connected to an angle-adjusting motor (13). An arc-shaped rest-plate (15) is disposed at an upper portion of the hinged angle-adjustable support (14). There are two arc-shaped rest-plates (15). The two arc-shaped rest-plates (15) are mutually connected by connecting an arc angle adjusting motor (16) fixed to one of the arc-shaped rest-plates (15) to an arc angle adjusting screw (19) fixed to the other arc-shaped rest-plate (15). The invention solves a problem in the prior art in which a seat headrest cannot be adjusted forward and backward automatically, and is comfortable and convenient.\nD: The present invention relates to a passenger seat, an assembled chair-bed dual-purpose seating unit, and a multi-purpose seating unit. A chair-bed dual-purpose seat comprises a support (3), a seat (2), a back support (1), and a back support frame. The seat (2) is provided on and supported by the support (3); the back support (1) is provided on the support (3) via the back support frame; the lower portion of the back support frame is hinged to the support base (3); the back support (1) is hinged to the upper portion of the back support frame; the back support (1) is able to rotate relative to the back support frame and able to revolve relative to the support (3) along with the back support frame; a angle-adjusting device is provided between the back support frame and the support (3); a back support locking and unlocking device is provided between the back support (1) and the back support frame. The back support frame comprises at lease one main connecting rod (4), the lower portion of the main connecting rod (4) is hinged to the support (3); the upper portion of the main connecting rod (4) is hinged to the back support (1). By assembling a chair-bed dual purpose seat with another same seat, the assembled chair-bed dual-purpose seating unit enables improved comfort and utilization rate.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a rubbish-bin-type vacuum cleaner, comprising a vacuum cleaning mechanism, a rubbish storage mechanism (10) and a top cover (1). The vacuum cleaning mechanism is detachably connected above the rubbish storage mechanism (10), and the top cover (1) is movably connected to the vacuum cleaning mechanism. The vacuum cleaning mechanism comprises a clamping assembly (5) and a vacuum cleaning assembly, which are both arranged above a hollow box body. The vacuum cleaning assembly comprises a vacuum cleaning electric motor (4), a vacuum cleaning pipeline connected to the vacuum cleaning electric motor (4), an exhaust pipeline connected to the vacuum cleaning electric motor (4), and an active separation device arranged inside the exhaust pipeline. A through hole in communication with the rubbish storage mechanism (10) is provided inside the clamping assembly (5), the through hole being used for having rubbish pass therethrough and then the rubbish being stored in the rubbish storage mechanism (10). The top cover (1) is used for sealing the through hole. The rubbish-bin-type vacuum cleaner can be moved at anytime and anywhere as required to facilitate rubbish collection, is convenient to store when not in use, does not occupy space in a house, and does not easily affect indoor aesthetics.\nA: A dust bin (7) and a vacuum cleaner assembly having the dust bin (7). The dust bin (7) comprises a dust collection chamber (71), a dust inlet (72) detachably connected to a vacuum cleaning device, and a sealing structure for enabling sealing between the vacuum cleaning device and the dust bin (7). A hand-held vacuum cleaner (100) has a dust outlet (14) capable of engaging with the dust inlet (72). The vacuum cleaner assembly comprises a vacuum cleaning device and a dust bin (7) detachably connected to the vacuum cleaning device. The vacuum cleaning device has a housing (3) and a dust cup assembly (1) connected to the housing (3). The dust cup assembly (1) comprises a cup (11) and a filtering device (13) disposed in the cup (11). The detachable multipurpose dust bin (7) flexibly increases the capacity of a vacuum cleaner for containing dust.\nB: A garbage can, comprising a can body (1). A top cover assembly (2) is provided on the top surface of the can body (1). The top cover assembly (2) comprises a large flap (21) hingedly connected to the can body (1). A garbage feeding port (21b) and a garbage bag box storage zone (21c) located around the garbage feeding port (21b) are formed on the large flap (21). A garbage bag cutting mechanism (5) is mounted in the can body (1), and is used for cutting and separating a garbage bag part containing the garbage from a garbage bag body.\nC: A vacuum cleaner assembly comprises: a vacuum cleaning device and a dust bin for use with the vacuum cleaning device and for collecting the dirt sucked in by the vacuum cleaning device. The vacuum cleaner assembly having a first working mode and a second working mode; in the first working mode, the vacuum cleaning device is not sealingly engaged with the dust bin and operates independently to perform both vacuum cleaning and dust collection, and in the second working mode, the vacuum cleaning device is engaged with the dust bin and only performs vacuum cleaning, while the dust bin is responsible for dust collection. With a dust bin detachable from a vacuum cleaning device, the vacuum cleaner assembly of the present invention can flexibly increase the capacity of the vacuum cleaner for containing dust. The dust bin has a simple structure and is compact in structure when engaged with a vacuum cleaning device and thus only occupies a small space, thereby meeting the cleaning needs for scenarios of different amount of dirt.\nD: A dust collection device comprises a cover assembly (1), a partition support (4), a dust collection component (2) and a separation mechanism (3) used to separate trash from a fluid. The cover assembly (1) is connected to the dust collection component (2). An installation compartment is formed between the cover assembly (1) and the dust collection component (2). The separation mechanism (3) and the partition support (4) are positioned in the installation compartment. The separation mechanism (3) is connected to the partition support (4). The partition support (4) divides the installation compartment into an electric motor accommodation compartment (11) and a dust cup compartment (21). The separation mechanism (3) comprises a separation driving assembly (31) and a centrifugal separator (32). The separation driving assembly (31) is positioned in the electric motor accommodation compartment (11). The centrifugal separator (32) is positioned in the dust cup compartment (21). The separation driving assembly (31) is connected to the centrifugal separator (32). The separation driving assembly (31) can drive the centrifugal separator (32) to make rotational movement. The dust collection device uses the separation driving assembly (31) to actively drive the centrifugal separator (32), such that rotation of the centrifugal separator (32) reaches a preset rotation speed, and then a fluid is drawn in under the action of suction of a vacuum cleaner main body, thereby effectively facilitating separation of dust from the fluid.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nThe present invention relates to the technical field of medical devices, and specifically relates to a novel medical electric moving trolley, which comprises a bed frame, a bottom plate, a lifting apparatus, a transfer plate, a transmission apparatus and a conveyor belt. Provided is a novel medical electric moving trolley, the transfer plate is provided on the bed frame and the conveyor belt is provided on the transfer plate, and the transmission apparatus can drive the transfer plate to slide on the bed frame and drive the conveyor belt to move, and so automatically transporting patients from a hospital bed onto the moving trolley or the automatic transfer from the moving trolley to another bed can be achieved, thus reducing manual handling workload, transfer operations are convenient, and secondary injuries on patients caused by substantial handling can be prevented. By providing the lifting apparatus between the bed frame and the bottom plate, the vertical height of the bed frame can be adjusted, and is suitable for transferring to hospital beds or operating tables of different heights. By providing a power wheel apparatus on the bottom plate, a large amount of manpower can be reduced to achieve the movement of the moving trolley, and usage is convenient.\nA: Provided is an automatic patient transfer vehicle, which relates to the technical field of patient transportation and is used for cooperating with an automatic patient transfer robot to transfer a transported person. The vehicle comprises a vehicle body, a translational electric push rod, a support arm and a bracket, wherein the bracket is suitable for placing the automatic patient transfer robot, one end of the support arm is hinged to the vehicle body, the other end of the support arm is hinged to the bracket, one end of the translational electric push rod is connected to the vehicle body, the other end of the translational electric push rod is connected to the support arm, the translational electric push rod is adapted to control the movement of the bracket by controlling the rotation of the support arm, and the bracket is adapted to take and place the automatic patient transfer robot via movement. Further provided is an automatic patient transfer method. The automatic patient transfer vehicle and the automatic patient transfer method provided by the present invention can coordinate the automatic patient transfer robot to get on and off the automatic patient transfer vehicle; in addition the time of medical workers is saved on, the labor intensity of the medical workers and family members of a patient is reduced, and secondary injury to the transported person is avoided.\nB: Provided is an electric lifting and moving machine (100) suitable for the technical field of medical instruments. The electric lifting and moving machine comprises: a bearing assembly, used for bearing a user and comprising a seat plate; a support assembly, comprising a chassis (20); an electric lifting assembly, comprising an electric motor driving assembly (90) and a lifting assembly, wherein the electric motor driving assembly (90) is in transmission connection with the lifting assembly, and the lifting assembly is arranged on the chassis (20); at least one connection rod (30), wherein one end thereof is connected to the lifting assembly, and the other end thereof is connected to the bearing assembly in such a way that the lifting assembly drives the bearing assembly to ascend or descend; at least one castor (21), arranged on a bottom side of the chassis (20); and at least one foot brake assembly, arranged, corresponding to the position of the castor (21), on the chassis (20), and when in a parked state, the foot brake assembly being in contact with the castor (21) so as to prevent the castor (21) from rotating. In the electric lifting and moving machine, automatic lifting of the moving machine is achieved, the structure is simple, the size is small, and the comfort of a user is improved.\nC: A multifunctional full-automation care bed is formed of a chassis (1), a bed frame (2), a head board (9), a back board (7), a buttock board (6), a leg board, a foot board (3), double folded restraining sides, and a toilet fold mechanism. The back board and the buttock board are rotatable hinged boards, whose corresponding cushions are cylindrical cushions and move synchronously with the hinged boards. The back board and the buttock board are divided into three pieces longitudinally. The two pieces at the sides can fold upward, respectively. When one side board at one side is folded, the hinged boards and the rolling cushion move to the direction of the folded board, and a patient can turn over at 0 to 360 degrees. The toilet fold mechanism is installed below the leg board at the rear part of the bed frame. The middle piece of the leg board can rise driven by an electric push rod and support the legs of a patient and enable the buttocks to leave the cushion. A toilet (35) can automatically move below the buttocks of the patient as driven by the fold mechanism. The care bed is driven by a motor and eight electric push rods and is controlled by a microcontroller.\nD: Disclosed in the present utility model is a novel nursing chair bed system, comprising a bed frame, the bed frame being provided with a backrest part, a foot rest part and a cushion part, the backrest part and the foot rest part being connected to the cushion part in an up-and-down rotating manner; a foot pad part is provided at one end of the foot rest part away from the cushion part, the foot pad part is rotatably connected to the foot rest part; said system further comprises a backrest push rod and a foot rest push rod, outer shells of the backrest push rod and the foot rest push rod are fixed to the bed frame; an actuating mechanism of the backrest push rod is fixedly connected to a back face of the backrest part; the outer shell of the foot rest push rod is fixed on the bed frame, and an actuating mechanism thereof is connected to a transmission mechanism; the transmission mechanism comprises a transmission frame and an L-shaped support frame, one end of the transmission frame being rotatably connected to the bed frame, and the other end being rotatably connected to one end of the L-shaped support frame; the other end of the L-shaped support frame is connected to one end of the foot pad part away from the foot rest part; and the actuating mechanism of the foot rest push rod is fixedly connected to the transmission frame. The present utility model can achieve a high degree of automation.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA migraine treatment supporting device, comprising: a device body (100). Provided on the device body (100) are a U-shaped frame (2), a connecting portion (1), and a handle (3). The connecting portion (1) is provided on a top end of the U-shaped frame (2). The handle (3) is provided at a bottom end of the U-shaped frame (2). The U-shaped frame (2) is internally provided with a micro power source (22) and a micro-controller (23). A micro-vibrator (21) is disposed on an inner wall surface of the U-shaped frame (2). The micro-vibrator (21) is controlled by the micro-controller (23) to provide a vibration massage. The micro-vibrator (21) forms a hemispherical protrusion on a side facing a human head. A magnetic tip (211) is disposed on the hemispherical protrusion. The migraine treatment supporting device is easy and convenient to use, and improves an effect of magnetic therapy to promote the physical health of a user.\nA: A headache therapeutic instrument, comprising a wearing frame matched with a human head (8), a massage and percutaneous administration device (3), a liquid medicine infusion tube (4), a liquid medicine infusion device (5), and a liquid medicine storage box (6). The wearing frame is provided with at least one acupuncture point positioning hole (12, 23) with respect to the human head (8); the massage and percutaneous administration device (3) is mounted on the wearing frame and is provided opposite to the acupuncture point positioning holes (12, 23); the liquid medicine infusion device (5) conveys a medicine in the liquid medicine storage box (6) to the massage and percutaneous administration device (3) by means of the liquid medicine infusion tube (4); the massage and percutaneous administration device (3) is capable of simultaneously carrying out administration and massage on the corresponding acupuncture points. The headache therapeutic instrument, which is different from the conventional medicine administration and injection, infuses a medicine into human acupuncture points by means of the skin in a percutaneous treatment mode, thereby overcoming the defects of oral administration and injection, and massage is carried out while the medicine is infused, thereby effectively relieving migraine of a patient.\nB: A cap for adjuvant therapy on a patient with cerebrovascular and cardiovascular disease, comprising a cap body (100) having a crown (1), a peripheral edge (2), and a brim (3). The crown (1) and the peripheral edge (2) form an integrally-connected structure. Magnets are provided on an outer surface of an inner layer of the peripheral edge (2). Heating pieces (12), a temperature controlled switch (13), an electric massaging pad (14), and a controller (15) are provided on the crown (1). The temperature controlled switch (13) is connected to the heating pieces (12) by means of wires. The electric massaging pad (14) is connected to the controller (15) by means of a wire. The temperature controlled switch (13) controls the heating pieces (12) to heat the cap body (100). The heating pieces (12) are provided at the inner layer of the crown (1). The electric massaging pad (14) massages head acupoints of a patient with cerebrovascular and cardiovascular disease according to the control of the controller (15). The cap is easy to use and can improve the physical health condition of patients with cerebrovascular and cardiovascular disease.\nC: A limb dysfunction rehabilitation device (100), comprising a vertical pole (1), a base (2), and a seat (3). The vertical pole (1) and the seat (3) are fixed onto the base (2), and a rotary disc (4) is provided on the base (2) between the vertical pole (1) and the seat (3). A movable arm (10) is mounted on the top end of the vertical pole (1); one end of the movable arm (10) is connected to the top end of the vertical pole (1), and the other end is provided with a near infrared lamp (11); the near infrared lamp (11) is electrically connected to a power supply (22) by means of a switch button (21). The seat (3) is provided with an arm magnetic therapy part (5) and a backrest (6); the arm magnetic therapy part (5) comprises an arm sleeve (51) and elongated permanent magnets (52); when the power supply (22) is electrified, the elongated permanent magnets (52) induce magnetism to yield a magnetic therapy effect on an arm of a patient. The top end of the backrest (6) is provided with a headrest (7); a massage vibrator (72) is provided inside the headrest (7); the massage vibrator (72) is electrically connected to the power supply (22) by means of the switch button (21), so as to carry out vibration massage on head of the patient when the power supply (22) is electrified. The device (100) can perform safe and effectual rehabilitation training treatment on patients suffering from limb dysfunction, without producing any toxic and side effect of medicine, and thus is easy to operate, economical and practical.\nD: A neck massager for health management, comprising a U-shaped support (100) and further comprising a massage tip (1), a controller (2), a heat emitting mesh (3), a draw string (5), and a cord lock (6). The heat emitting mesh (3) is provided on the massage tip (1). A temperature sensor (4) detects a surface temperature of the U-shaped support (100) and sends a detected temperature value to the controller (2). The controller (2) is used to control a heat emission of the heat emitting mesh (3) for heating the massage tip (1). The controller also controls the massage tip (1) to massage a neck of a user. The draw string (5) comprises a first draw string (51) and a second draw string (52). The cord lock (6) is disposed on the first draw string (51) and the second draw string (52) and is used to fix the first draw string (51) and the second draw string (52). When the first draw string (51) and the second draw string (52) are loosened, the cord lock (6) is able to move along the first draw string (51) and the second draw string (52). The neck massager provides a warming effect during massaging, thereby accelerating blood circulation in the neck area, providing effective alleviation of discomfort experienced by neck muscles, and improving user comfort.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nProvided is a remote control. The remote control comprises: a main body, an antenna assembly and a connection assembly, wherein the antenna assembly is movably connected to the main body by means of the connection assembly, such that the antenna assembly can be switched between an accommodated state and a first unfolded state; when in the accommodated state, the antenna assembly is located at a first position relative to the main body, and when in the first unfolded state, the antenna assembly is located at a second position relative to the main body; and when the antenna assembly moves to a first predetermined position relative to the main body, the connection assembly can automatically drive the antenna assembly to move to the first position or the second position. The embodiments of the present application have the beneficial effects of switching of an antenna assembly state being more convenient and quicker, and the antenna assembly being able to maintain the current state and being able to be automatically reset after being accidentally touched.\nA: Embodiments of the invention disclose an antenna, a peripheral circuit, an antenna system, and a signal processing method. The method of the embodiments of the invention comprises: providing a first layer antenna, a second layer antenna, a first probe, a second probe, a first connector, and a second connector, wherein main bodies of the first layer antenna and the second layer antenna are respectively attached with a circular micro-strip patch, and the circular micro-strip patch attached to the first layer antenna is provided therein with a first feed network and a second feed network; connecting the first layer antenna to the first probe and the second probe via the first feed network and the second feed network; and connecting the first layer antenna to the first connector and the second connector, wherein the connection positions of the first connector and the first probe with the first layer antenna correspond to each other, and the connection positions of the second connector and the second probe with the first layer antenna correspond to each other.\nB: An antenna assembly, a remote controller (1000) and a remote control system (10). A drawing structure (300) of the remote controller (1000) is movably connected to a device body (100), so as to adjust the distance between an antenna main body (200) and the device body (100); one end of a feeder line (400) is electrically connected to the antenna main body (200), and the other end of the feeder line is electrically connected to an electronic device; and in the process in which the antenna main body (200) is close to or far away from the device body (100), the extension length of the feeder line (400) relative to a line body storage structure (500) is changed.\nC: The invention provides a radar and a movable apparatus having same, wherein the radar comprises: a base; an antenna assembly disposed above the base, the antenna assembly being rotatable around a rotating shaft relative to the base; a driving mechanism disposed on the base, a rotating component of the driving mechanism being fixedly connected to the antenna assembly to drive the antenna assembly to rotate around the rotating shaft; and a counter-weight member disposed on the antenna assembly such that the center of gravity of the antenna assembly is close to the rotating shaft, wherein when the rotating component of the driving mechanism drives the antenna assembly to rotate, the counter-weight member rotates together with the antenna assembly, so that the antenna assembly stably rotates around the rotating shaft. By arranging the counter-weight member on the antenna assembly, the center of gravity of the antenna assembly is close to a certain rotating shaft, so that the antenna assembly always rotates around the rotating shaft, thereby ensuring the balance of the rotation of the antenna assembly and avoiding the influence of the imbalance of the rotation of the antenna assembly on the orientation diagram thereof, such that the performance of the antenna assembly is optimized.\nD: Disclosed in the embodiments of the present application is a control method, used for a first device; said first device has at least two antennas; each antenna is connected to an independent RF module; said method comprises: by means of said at least two antennas, the first device receiving a first RF signal sent by a second device; by means of analyzing data related to said first RF signal, determining position information of the first device relative to the second device; on the basis of said relative position information, controlling the first device to follow the second device, maintaining a preset positional relationship of the first device relative to the second device. The embodiments of the present application also disclose a control device used for a first device, a control device used for a second device, a control system, and a control method used for the second device.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for treating an oily aqueous substance, comprising: mixing a first oily aqueous substance (101, 102) with a solvent (103, 203) at a first temperature to obtain a first mixture (105, 205) containing a solid substance (107, 207) and a liquid substance (111, 211), the liquid substance containing the solvent (103, 203), oil, and water; subjecting the first mixture (105, 205) to a first separation treatment to obtain the solid substance (107, 207) and the liquid substance (111, 211); subjecting, at a second temperature, the liquid substance (111, 211) resulting from the first separation treatment to a second separation treatment to obtain an aqueous phase (113, 213) and an organic phase (117, 217), the organic phase (117, 217) containing the solvent (103, 203) and the oil; and subjecting the organic phase (117, 217) to a third separation treatment to obtain the separated solvent (123, 223) and the separated oil (119, 219), wherein the mutual solubility of the solvent (103, 203) and water at the first temperature is higher than the mutual solubility of the solvent (103, 203) and water at the second temperature. Further disclosed is a corresponding treatment device. In the method for treating an oily aqueous substance, the separation and recovery of water are not subjected to phase transformation, but instead the water is obtained by liquid-liquid separation, thereby enabling an effective reduction in energy consumption.\nA: A plasma-based carbon fixation system, comprising: a plasma reactor (11), a first separator (15), a condenser (14), and a second separator (17). The plasma reactor (11) comprises a first channel, a second channel, a high-voltage electrode (12), and a ground electrode (13); the first channel and the second channel are each provided with a corresponding flow controller (10); the condenser (14) is connected to an output of the plasma reactor (11), and a condensed liquid substance is introduced into the first separator (15), and a non-condensed gas substance is introduced into the second separator (17). A plasma-based carbon fixation method comprises the following steps: S100. taking carbon dioxide as a first reactant, and taking hydrogen or methane or water as a second reactant, and under the control of plasma and under the control of the amount of reaction of the first reactant and the second reactant, reacting the first reactant with the second reactant to obtain a conversion product, and outputting and condensing the conversion product, and the first reactant and/or the second reactant that may not be completely reacted to achieve gas-liquid separation; S200. carrying out first separation on the condensed liquid substance; S300. carrying out second separation on the non-condensed gas substance.\nB: The present invention provides a method and apparatus for drying a biological solid material employing both microwave irradiation and solvent extraction. The method comprises microwave irradiation pretreatment, solvent extraction drying, solid-liquid separation, and solvent recovery. Through microwave irradiation of an aqueous biological solid material, gaps in the solid material are increased, and the biological material is fractured, thus releasing more bound water in the solid material. Subsequently, the microwave-irradiated biological solid material is brought into full contact with an organic solvent, allowing the solvent to absorb and extract moisture from the solid, thus removing moisture from the solid. The aqueous solvent is then subjected to evaporation under reduced pressure or gasification under reduced pressure in a separation apparatus so as to separate the moisture and the solvent. The solvent is then compressed, condensed and recovered for recycling. Also provided is a device for implementing the drying method.\nC: A salt extraction method for high-salinity waste water, which comprises: mixing high-salinity waste water and an organic solvent such that an inorganic salt which does not dissolve in an organic solvent is precipitated from the high-salinity waste water to form a solid-liquid mixture; performing solid-liquid separation on the solid-liquid mixture to obtain solid-phase inorganic salt and low-salinity waste water. The solid-liquid inorganic salt separated by using the present method is fluffy and does not harden and will not cause sewage blockage. Further disclosed is a salt extraction apparatus for high-salinity waste water.\nD: The high-efficiency pretreatment separation of hemicellulose from a fiber-based biomass raw material and a comprehensive utilization method therefor. Using a fiber-based biomass raw material which is a type of forest biomass resource as a raw material, the fiber-based biomass raw material is first subjected to a slurry method pretreatment: the fiber-based biomass raw material is ground by a ball mill and sieved to obtain fiber-based biomass raw material powder of a certain mesh, and the powder is mixed with water at a room temperature according to a ratio to obtain a fiber-based biomass raw material powder slurry premixed liquid; by means of the regulation and control of the reaction temperature, time and water quantity, hemicellulose is hydrothermally and highly efficiently removed from the fiber-based biomass raw material powder in a slurry fiber-based biomass raw material powder premixed liquid system; once the mixed liquid is filtered, the filtrate is subjected to gradient precipitation to separate low-dispersion hemicellulose, the precipitate is dried, and the dried material is stored; once filter residue, a polar aprotic solvent and water are mixed, the mixture is heated and stirred in a pressurized reaction kettle for a certain period of time, and undergoes filtering separation to obtain high-purity cellulose, which is washed using water, dried and stored; the filtrate and water are mixed, the mixture is allowed to stand, the precipitated powder is filtered, drying is performed, and the dried material is stored; and the filtrate is subjected to reduced-pressure distillation to recover water, the solvent and a small amount of small-molecular chemicals, and recycling is performed.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a direct-current, double-support and ultra-fine ring roller grinder, comprising a grinding host, wherein a host shell (1) of the grinding host is arranged on a host base (3); a grinding roller (9) and grinding rings (12, 13) mated with each other are arranged in the host shell (1); the grinding roller is arranged on a grinding roller support (10, 11), and the grinding roller support is arranged on a main shaft (2); a lower end of the main shaft (2) is mounted in a double-support manner through upper and lower bearing positions (4,7) on an upper host cover (6) and the host base (3); a negative-pressure gas port (5) is formed on the host base (3); the grinding rings are directly mounted and connected to the host shell in a non-spaced manner; and the gas port communicates with a graded conveying pipe outside the grinding host. The grinding host of the ring roller grinder uses a structure with feeding from the top and suction from the bottom, which is not restricted by the grading amount of the grading device, and prevents the discharging materials from leaking outside; thus, the grinding efficiency is improved, mechanical collision and abrasion between the grinding roller and the grinding ring are reduced, and the grinding host has a low noise level.\nA: Disclosed is a roller mill, which comprises: a shell (10), the shell (10) being provided with a feed port (11) and a discharge port (12); a main shaft (20) which is provided in the shell (10) rotatably in a penetrating manner; a drive device (30) which is connected to the main shaft (20) in a driving manner; a bracket (40) which is installed on the main shaft (20); two or more than two grinding rollers (50), each of the grinding rollers (50) is rotatably installed on the bracket (40) around a shaft axis thereof; and a grinding disk (60) which is fixedly installed in the shell (10) and is opposite to the positions of the plurality of grinding rollers (50). The roller mill also comprises an axial position adjustment device (70) which is connected to the main shaft (20) and is used for driving the main shaft (20) to move in an axial direction so as to adjust the position of the main shaft (20). The roller mill has a simple structure and can adjust a rolling gap conveniently.\nB: A driving recorder, comprising a main body (1) used for photographing a scene outside of a vehicle, wherein the main body (1) comprises a main body casing (11); the main body casing (11) comprises a main body lower cover (111) and a main body upper cover (112) covering the main body lower cover (111); the main body (1) further comprises a mounting cover (15) detachably connected to the main body upper cover (112), and one side of the mounting cover (15) is provided with an adhesive member (16) used for fixedly connecting to a windshield (3). The main body casing (11) and the mounting cover (15) of the driving recorder are detachable, and the mounting cover (15) is fixedly connected to the windshield (3) by means of the adhesive member (16), so that the main body (1) and the windshield (3) are connected more stably. Meanwhile, when components in the main body casing (11) are maintained and replaced later on, it is only necessary to remove the main body casing (11) from the mounting cover (15) without damaging the adhesive member, which reduces the difficulty in disassembling the main body (1).\nC: A coal grinding device for a thermal power system of a power plant comprises a housing (4), a coal inlet and outlet mechanism disposed above the housing (4), a first driving mechanism disposed below the housing (4), and a grinding mechanism and a second driving mechanism both disposed in the housing (4). Both the first driving mechanism and the second driving mechanism are in transmission connection with the grinding mechanism. In the coal grinding device for a thermal power system of a power plant, a curved surface is disposed on one side of each auxiliary grinding plate (22) close to each first grinding roller (19), so that the grinding area of the first grinding rollers (19) and the auxiliary grinding plates (22) can be greatly increased, thereby improving the grinding efficiency of the device. In addition, a plurality of second grinding rollers (21) is disposed at the bottom of each first grinding roller (19), so that grinding is carried between the second grinding rollers (21) and the grinding discs, so as to fully grind coal briquettes, thereby improving the grinding reliability.\nD: Disclosed a prepreg sizing roll shaft spraying complete machine. The complete machine comprises a main machine base (b1) and a coating mechanism arranged on the main machine base (b1); the complete machine further comprises a feeding structure for performing feeding and an iron powder supply device for absorbing iron powder; a supporting rod (b2) for the installation of the feeding structure is arranged on the main machine base (b1); and the complete machine also comprises an iron powder recycling box (b3) arranged below the iron powder supply device. The prepreg sizing roll shaft spraying complete machine uses automatic control, a very efficient novel roller shaft manufacturing manner is achieved, the finished product yield is high, and the effect is good.", "input": "", "output": "A"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA method for reducing oxide ores by using a square carbonization chamber of a coking plant, comprising performing mixing; pressing ores into spheres by means of a ball pressing machine, and putting same into the square carbonization chamber from the top to perform reduction reaction, or directly pulverizing block-shaped oxides into regular small blocks and mixing same with a carbonaceous reductant before being put into the square carbonization chamber from the top to perform reduction reaction, or pressing the oxides into the shapes of honeycomb briquettes having holes and then pushing same into the square carbonization chamber from a side surface by means of a tray to perform reduction reaction, so as to well adapt to reduction reaction of oxide ores in different forms, and generate a simple-substance metal material.\nA: A method for directly preparing high quality silicon nitride powder by a combustion synthesis method, which uses the silicon powder as a raw material and uses a reactive metal as a reducing agent. The method comprises the following steps: mixing reaction raw materials such as silicon powder and a silicon nitride diluent by proportion, and then adding a quantitative amount of metal powder to uniformly mix with the reaction raw materials, placing a mixture into a combustion synthesis reaction device, and inducing the reaction under a specific pressure to obtain the high quality silicon nitride powder. According to the process method in the present invention, the reactive metal having a stronger reducibility than the reaction raw material is used to reduce oxygen in the reaction raw material so as to generate a corresponding metal oxide. The silicon nitride powder prepared by the process method in the present invention has low oxygen content, good crystallinity, high purity, and excellent sintering performance.\nB: A method for regenerating a ternary precursor by using a nickel-cobalt-manganese residue, comprising: mixing a nickel-cobalt-manganese residue, water, and a reducing agent, adjusting the obtained mixed solution to alkaline, and then mixing same with an ammonium salt to obtain a mixed slurry; and carrying out a hydrothermal reaction on the mixed slurry to obtain a ternary precursor. The nickel-cobalt-manganese residue and the reducing agent are mixed for a hydrothermal reaction; under the action of the reducing agent, a metal oxide in the nickel-cobalt-manganese residue is reduced to a corresponding +2-valent metal hydroxide or carbonate; the morphology and particle size of the product are controlled by adjusting the pH value, adding an ammonium salt, and controlling the hydrothermal reaction temperature; finally, the obtained product can restore the morphology and electrochemical performance of the original ternary precursor. The method for regenerating a ternary precursor by using a nickel-cobalt-manganese residue allows for direct reduction of a nickel-cobalt-manganese residue into a ternary precursor, can implement recycling of waste ternary positive electrode materials, and has a great application prospect.\nC: A method for preparing metal magnesium and magnesium-aluminium spinel with active magnesia and aluminium or an aluminium alloy as raw materials, comprising the following steps: (1) calcinating magnesite or brucite, and grinding to obtain an active magnesia powder; (2) homogenously mixing a reductant and the active magnesia powder, to prepare a mixture compacted into a lump; (3) reducing at 1,100-1,300°C, to produce a gaseous metal magnesium and a solid cake slag; (4) finely grinding the solid cake slag, obtaining a lump by compacting, and obtaining a product magnesium-aluminium spinel by calcinating. In the method of the present invention, the calcinated active magnesia is used as the raw material and reacted with aluminium or aluminium alloy, to produce metal magnesium and magnesium-aluminium spinel, in which the aluminium powder is an industrial aluminium powder or an aluminium powder produced by recycling waste aluminium, and the aluminium alloy powder is an industrial aluminium alloy powder or an aluminium alloy powder produced by recycling waste aluminium alloy. The method has a simple process and a low cost, and is thus suitable for industrialized production.\nD: An ore powder reduction method and a system thereof. The ore powder reduction method comprises: reacting coal, vapor and oxygen in a gasification reactor (100) to obtain a reducing gas comprising carbon monoxide and hydrogen; reacting the reducing gas and ore powder in a fluidized bed reduction reactor (200) to obtain a reduction product and a reduction exhaust; performing desulfurization and decarburization processing on the reduction exhaust to obtain a purified reduction exhaust; and introducing the purified reduction exhaust into the fluidized bed reduction reactor (200). By using the method, ore powder can be effectively reduced, thereby saving the cost and improving the reduction efficiency of the ore powder.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA vibration motor, relating to the technical field of vibration apparatuses, and comprising a motor. A right eccentric block is fixedly connected to a right shaft end of a motor shaft of the motor in the circumferential direction, a screw mandrel is arranged at a left shaft end of the motor shaft, and the screw mandrel is fixedly connected to the left shaft end of the motor shaft in the circumferential direction and movably connected in the axial direction; a screw cover is fixedly mounted on an end surface of a left eccentric block, and the screw mandrel is connected to the screw cover by means of a screw groove-boss structure. According to the vibration motor provided by the present invention, the screw mandrel is moved leftwards or rightwards in the axial direction, so that the screw cover is driven to rotate relative to the motor shaft in the axial direction, and the left eccentric block is driven to rotate relative to the motor shaft in the axial direction. Therefore, an included angle between the right eccentric block and the left eccentric block in the circumferential direction is changed, and the purpose of adjusting eccentricity and exciting force is achieved.\nA: A propeller connection structure and an unmanned aerial vehicle. The connection structure comprises a motor rotor shell (1) and a propeller (2). The motor rotor shell (1) is provided with a connection part (11) for connecting the propeller (2). The propeller (2) is provided with a through hole (21) fitted with the connection part (11), and a groove (22) for preventing the connection part (11) from being disconnected from the propeller (2), a first angle being formed between the through hole (21) and the groove (22). An elastic mechanism (3) is sleeved outside the connection part (11), wherein the elastic mechanism (3) is, when the propeller (2) is installed, elastically compressed to enable the connection part (11) to turn freely, and abuts the groove (22) when being elastically recovered. The connection part (11) on the motor rotor shell (1) is fitted with the groove (22) of the propeller (2) to enable the propeller (2) to rotate at a high speed with a motor rotor, the propeller (2) is secured to the connection part (11) by means of the elastic mechanism (3), and the elastic mechanism (3) can cancel a loosening force generated by the high-speed rotation of the motor rotor, thereby attaining quick installation and detachment of the propeller (2).\nB: A laminated screw type solid-liquid separator capable of achieving pendulum type movement, comprising fixed rings (1), movable rings (2), and a spiral shaft (3), the fixed rings and the movable rings that are staggered being provided in the radial direction of the spiral shaft; and further comprising a primary drive rod (4), a secondary drive rod (5), and a positioning rod (10). The primary drive rod is connected with an independent drive motor or connected with the spiral shaft by means of a transmission mechanism (6); the primary drive rod is supported by two or more support devices; the primary drive rod is provided with one or more eccentric devices; each eccentric device is connected with the secondary drive rod separately by means of a drive sheet (9); the secondary drive rod is sheathed at the lower ends of the movable rings to connect all the movable rings into a whole; the upper ends of the movable rings penetrate through the positioning rod, and the positioning rod drives, by means of a linear guide device (71), the upper ends of the movable rings to do vertical linear movement and the lower ends of the movable rings do pendulum type movement following the secondary drive rod simultaneously. According to the solid-liquid separator, supporting is achieved by a plurality of support devices, so that the problem of easy deformation of an eccentric shaft is resolved, and the wear between movable rings and the spiral shaft is reduced.\nC: An eccentric vibrator, relating to the technical field of vibration machineries, and comprising an outer eccentric body (1) and an inner eccentric body (2). The outer eccentric body (1) has an inner circumferential surface. The inner eccentric body (2) has an outer circumferential surface. At least one first bearing (41) is provided between the inner circumferential surface and the outer circumferential surface. The gravity center of the inner eccentric body (2) and the gravity center of the outer eccentric body (1) both deviate from a rotation center formed by the first bearing (41). The outer eccentric body (1) is provided with a left bearing platform (10) which is coaxial to the first bearing (41), and a right end cover (3) is provided at the right side of the outer eccentric body (1) and the inner eccentric body (2). Compared with the prior art, the eccentric vibrator provided by the present invention can be used for adjusting the angle between the two eccentric bodies during rotation so as to adjust the excitation force and can also be used for adjusting the magnitude of the excitation force to zero in a dynamic state so as to reduce the load of a vibration exciter during start.\nD: A power device (100) and an unmanned aerial vehicle (1000). The power device (100) comprises a motor (20) and a propeller (10) mounted on the motor (20). The propeller (10) comprises a propeller hub (11) and at least two propeller blades (12) connected to the propeller hub (11). The motor (20) comprises a stator assembly (22) and a rotor assembly (21) rotatable relative to the stator assembly (22). The rotor assembly (21) comprises a motor shaft (212), a housing (211) sleeved on the motor shaft (212) and rotatable with the motor shaft (212), and a magnet (213) provided on an inner side wall of the housing (211). The stator assembly (22) comprises a stator seat (221) sleeved on the motor shaft (212), an iron core (222) sleeved on the stator seat (221), and a coil (2221) wound on the iron core (222). The iron core (222) and the coil (2221) are accommodated in the housing (211), and are spaced apart from the magnet (213). The housing (211) comprises an opening portion (2114), and the propeller hub (11) covers the opening portion (2114). The invention prevents rain or dust from entering the internal part of a motor, and has good waterproof and dustproof performance.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nAn iron fine removal and sorting system for magnetic hard rocks. The system comprises a feeding system (1-1), a hard rock screening system (1-2), a whole hard rock sorting system (1-3), a hard rock coarse sorting system (1-4), a hard rock fine sorting system (1-5), and an automatic hard rock return system (1-6). The hard rock screening system (1-2) can conduct size grading on hard rocks. Materials containing whole balls and crushed balls are subjected to whole ball iron removal and sorting. The hard rock coarse sorting system (1-4) can sort out all ferrous metal. The hard rock fine sorting system (1-5) can accurately separate the sorted metallic iron from the hard rocks. The whole sorting system uses the low-energy-consumption energy saving technology. A PLC-controlled pneumatic push rod (5-4) is used in the separation technology, the precision of an execution mechanism (5-3) is high, and the iron piece separation precision is high. By using the whole sorting system, the continuous operation of a discharging system of produced tailings can be ensured, and it is ensured that all the hard rocks and iron return to a production system (1-6) after sorting, and the environment-friendly zero-emission standard is satisfied. The iron fine removal and sorting system for magnetic hard rocks has a high automation degree, a compact structure and a small occupied area and is convenient to install.\nA: A system for manufacturing and separating dust-free manufactured natural sand and a winnowing separating method. The system comprises a PLC controller. Stones are conveyed to a feed port of a sand making machine (A) by using a stone conveying mechanism (A1), an exhaust port of the sand making machine (A) directly faces a start end surface of a manufactured-sand conveying mechanism (A2), a tail of the manufactured-sand conveying mechanism directly faces a feed end of a modular multi-layer vibrating screen (D), a discharge end of the modular multi-layer vibrating screen (D) directly faces a feed end of a manufactured-natural sand grading adjustment system (B), a discharge end of the manufactured-natural sand grading adjustment system (B) directly faces a feed end of a manufactured-sand winnowing system (C), and discharge ports of the manufactured-sand winnowing system (C) corresponding to manufactured-sand with different particle sizes are connected to respective storage tanks. The present invention can implement winnowing of manufactured-sand, and can also implement dust-free sand manufacturing.\nB: An air dry sand coal sorting system, comprising a machine body (2), a sorting system (3), a coal discharge system (4), a gangue discharge system (5), a medium processing system (6), an electric control system (7), a dust removal system (8) and an auxiliary system (9). The sorting system (3), the coal discharge system (4), the gangue discharge system (5), and the medium processing system (6) are all located in the machine body (2). The coal discharge system (4) and the gangue discharge system (5) use and cooperate with a coal block layer and a gangue layer on the sorting system (3) respectively. A discharge port on the coal discharge system (4) and a discharge port on the gangue discharge system (5) are separately in communication with a feeding port on the medium processing system (6). A discharge port on the medium processing system (6) communicates with a feeding port on the sorting system (3). The electric control system (7) is separately electrically connected to the sorting system (3), the coal discharge system (4), the gangue discharge system (5), the medium processing system (6), the dust removal system (8) and the auxiliary system (9). A dust removal port of the dust removal system (8) communicates with the machine body (2). A discharge port on the auxiliary system (9) is connected to the feeding port on the sorting system (3). Compared to the prior art, the described system has the advantage of being able to completely replace a water method for coal sorting and composite air separation, which effectively reduces the cost of coal sorting and significantly improves the efficiency of coal sorting.\nC: Provided in the present invention is a system for treating steel tailings using a dry method, comprising: a roller mill completing repeated dissociation and pre-separation of the steel tailings and separating out minerals rich in iron particles and other light materials; a gravity separator connected to the roller mill to separate out heavy particles rich in iron particles; a first magnetic separator connected to the gravity separator to separate out the iron particles from the heavy particles rich in iron particles; a three-stage mass separator provided at the upper portion of the roller mill to separate out heavy particles, light particles, and steel slag micro-powder from the other light materials according to the weight; a second magnetic separator connected to the three-stage mass separator to separate out fine iron powder rich in magnetic iron oxide from the heavy particles; and a third magnetic separator connected to the three-stage mass separator to separate out iron-rich RO phase minerals from the light particles. According to the system for treating the steel tailings in the present invention, repeated grinding dissociation and pre-separation can be performed on the steel tailings, so that 100% of the steel tailings are converted into the iron particles, the fine iron powder, the iron-rich RO phase minerals, and the steel slag micro-powder.\nD: A material separation method and a material separation system (10). The material separation system (10) is in communication connection with a first delivery mechanism (100), a detection device and a separation mechanism (300) by means of a central control device. A preset detection position is arranged at the first delivery mechanism (100). The detection device detects whether or not a material passing the preset detection position carries a metallic substance. If the material is detected to carry a metallic substance, the central control device records the material as an item to undergo separation. When the item is detected to have been delivered to a preset separation position, the central control device controls the separation mechanism (300) to perform a separation operation on the item. During the entire separation process, the material separation system can continuously perform separation operations without being stopped, thereby increasing separation efficiency and accuracy.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a chemical leaching and separating method for contaminants in soil and solid waste and separation system thereof. The separating method comprises: in a chemical leaching step, first reacting a high-concentration leacheate with the contaminants in the soil or the solid waste, so that the contaminants in the soil or the solid waste dissolve into the leacheate as solutes; and then, in a countercurrent washing step, partially displacing the contaminants as the solutes in the mixed solution obtained after leaching the soil or the solid waste by a washing liquid till the mixed solution obtained after leaching the soil or the solid waste has a contaminant concentration equal to the targeted concentration of the treatment, and may be discharged and satisfy the treatment requirement. A regeneration cycle step is dynamically carried out during the steps of the chemical leaching and the countercurrent washing, so that the volume of the leacheate and the concentration of the contaminants in the leacheate are constant in the whole treatment process of the contaminants in the soil or the solid waste to achieve a stable circulation. The separation system can implement the leaching and separating method.\nA: A method for recovering perfluorinated compound from sewage, which comprises the following steps: an electric flocculation step, using an electric flocculation method to adsorb the perfluorinated compound in an aqueous solution or a water-organic solvent mixed solution onto the surface of flocs produced by electric flocculation to form sludge; an elution step, carrying out an organic solvent elution treatment on the above-mentioned sludge containing perfluorinated compound to separate the perfluorinated compound from the sludge and form a concentrated perfluorinated compound solution; and a distillation step, distilling the produced concentrated perfluorinated compound solution to obtain perfluorinated compound solids and a distillate, the distillate being used as an elution liquid of the above-mentioned elution step. Zn(OH) 2  flocs produced in situ by electric flocculation have a very high adsorption capacity and a fast adsorption rate for the perfluorinated compound and can recover high-concentration and low-concentration perfluorinated compounds from sewage and purify the sewage simultaneously. Since the electric flocculation treatment has low costs and low sludge production amount, the large-scale application of the method is economically feasible.\nB: A recovering system for a reactive dye dyeing residual liquid, comprising an extraction system and a reverse extraction system. The extraction system extracts a reactive dye in the residual liquid into an organic solvent, and following extraction the residual liquid is used for dyeing, and the reverse extraction system reversely extracts the reactive dye in the organic solvent, with the reactive dye being included therein after the extraction, in the extraction system into an aqueous solution, and the organic solvent after the reverse extraction is recycled to the extraction system as an extractant. Further disclosed is a recovery method. The centrifugal extraction and separation technology used in the present invention is a reversible reaction-based polar organic chemical extraction and separation method, in which a water plus salt system and an extractant system respectively form a closed-loop cycle during the treatment of a dyeing residual liquid, and interact with each other in the centrifugal extraction device to continuously extract the water-soluble dye in the dyeing residual liquid, so that the residual liquid having high salinity can be recycled, and the discharge of a large amount of salt is avoided. The environmental pollution is reduced, and the production cost is reduced.\nC: Provided are a combined soil washing desorption method and device. The method is as follows: polluted soil is sprayed and sieved with a wet multistage vibrating sieve (3) to remove large particles of stones or coarse sand that can be directly backfilled; washing desorption treatment is carried out on a fine soil particle suspension, and same is subjected to cyclones (10-1,10-2,10-3) connected in series and respectively equipped with solid-liquid mixers (8-1,8-2) and a micro rotational flow sequencer (9-1) in order to achieve the separation of clay pollutants of small particle size; washing desorption treatment and cyclone separation are carried out on the remaining sandy soil of intermediate particle size, wherein the recycling of a washing liquid is achieved by a precision filter (12-1); and washing treatment using clear water and cyclone separation are carried out on the soil after filtration, and finally, after dehydration through a centrifugal machine (13), the deep separation of waste water and soil particles is finally achieved, thus achieving the purposes of backfilling soil, recycling tap water and recycling a washing agent. The device parameters can be adjusted and optimized according to actual conditions, thereby effectively removing pollutants containing heavy metals, pesticides, etc., and overcoming the deficiency that current soil washing cannot be industrialized.\nD: A method for removing organic pollutants based on microporous mineral adsorption and coupling and microwave degradation mainly comprises the steps of: filling a hydrophobic porous mineral adsorbent in adsorption columns (7, 9) to adsorb organic pollutants in organic wastewater; and starting a microwave generator (10) to cause the organic pollutants adsorbed in the adsorption columns (7, 9) to degrade under microwave induction after the adsorbent is saturated. Continuous treatment on the organic wastewater is realized via alternate operation and regeneration of the two adsorption columns (7, 9). The method can be used for pollution control of underground water, surface water and drinking water.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA riveter having an integrated rivet feeding and loading mechanism, consisting of a riveter body (1), a driving mechanism (2) and a rivet loading mechanism (3); a cylinder body (20) of the driving mechanism (2), a sliding groove (25), and an oil cylinder (10) of the riveter body (1) are processed to be integrated, being referred to as integrated cylinder A. The rivet loading mechanism (3) comprises a lower jaw piece (31), an upper jaw piece (32), a coupling block (35), a tension spring (36) and a support rod (24). A piston rod (22) of the driving mechanism and a sliding rod (26) within the sliding groove jointly drive the rivet loading mechanism to move back and forth; when the rivet loading mechanism moves forward, the same automatically closes and receives rivets; when the rivet loading mechanism moves backwards, the same automatically opens to load rivets into a gun head of the riveter body. The structure of the riveter reduces the number of parts of a device, and a device is simple to assemble, thus improving the safety and quality of the device, and facilitating the promotion of automatic and semi-automatic devices.\nA: Disclosed are an automatic screw fitting device and an automated assembly system. The automatic screw fitting device comprises a frame (21), and a positioning mechanism (22), a take-up mechanism (23), a drive mechanism (24), and a screw supply mechanism (25) provided in the frame (21). The positioning mechanism (22) is used for positioning a product to be assembled at a specified position; the take-up mechanism (23) comprises a rotating disk (231) connected to the drive mechanism, a plurality of suction members (232) fixedly provided below the rotating disk (231) and located on the same circumference, and a screwdriver (233) connected to the drive mechanism and located above the circumference; the drive mechanism (24) drives the rotating disk (231) to rotate, and the screwdriver (233) is movable on the drive mechanism; the screw supply mechanism (25) comprises a supply disc (251) provided with supply positions corresponding to the suction members (232); the drive mechanism (24) drives the suction members (232) to obtain screws from the supply positions and move them above fitting positions, for the screwdriver (233) to fit the screws on the product to be assembled. The automatic screw fitting device and the automated assembly system can realize screw fitting in place of a human, reducing the manufacturing cost and improving the manufacturing efficiency and product quality.\nB: A staple stuck processing mechanism of an electric stapler, and the electric stapler. The staple stuck processing mechanism of the electric stapler comprises a driving mechanism, a transmission mechanism (4), an ejection-type staple channel assembly (8), a controller, and an ejection mechanism; the transmission mechanism (4) is connected to an ejection switch of the ejection-type staple channel assembly (8) by means of the ejection mechanism; when the controller controls the driving mechanism to rotate in a staple loading direction, the ejection mechanism does not enable the staple channel assembly (8) to act, and when the controller controls the driving mechanism to rotate in a reverse direction of staple loading, the transmission mechanism (4) enables the ejection switch to act by means of the ejection mechanism to eject a staple channel of the staple channel assembly (8). Thus, stuck staples can be taken out conveniently.\nC: Disclosed is a nailing apparatus, comprising: a support mechanism (100), and an energy storage mechanism (200) and an energy storage driving mechanism (300) both provided in the support mechanism (100), wherein the energy storage driving mechanism (300) comprises a power component (310), an eccentric component (320) connected to the power component (310) and a linear movement component (330) connected to the eccentric component (320), and the power component (310) comprises a driving electric motor (311) and a step-down gear (312) installed on an output shaft of the driving electric motor (311); a nailing driving mechanism (400), wherein the energy storage driving mechanism (300) drives the nailing driving mechanism (400) to hammer nail to drive the nail into a base material; when storing energy, the power component (310) drives the eccentric component (320) to rotate, driving the linear movement component (330) to make a linear movement, such that the energy storage mechanism (200) stores energy, and when the energy storage mechanism (200) releases energy, the energy storage mechanism (200) hammers a nail via the nailing driving mechanism (400). The nailing apparatus can realise the effects of reducing driving power, reducing energy consumption, having a reduced overall size, being light in weight, and being convenient to carry.\nD: A riveting system comprises two or more rivets (1) and a riveting device (2). The rivet (1) comprises a mandrel (11). The riveting device (2) comprises two or more rivet gun heads (21). Each rivet gun head (21) is provided with a rivet gun hole (24). Each rivet (1) is provided with a first identifier. Each rivet gun head (21) is provided with a second identifier. If a rivet (1) matches a rivet gun head (21), the mandrel (11) of the rivet (1) is applicable to the rivet gun hole (24) of the rivet gun head (21). The first identifier of the rivet (1) is the same as or corresponds to the second identifier of the rivet gun head (21). The rivet gun head (21) and the rivet (1) are each provided with an identifier readily identifiable to the naked eye, such that a simple correspondence between a matched rivet (1) and rivet gun head (21) is established, enabling a user to rapidly identify the specifications of the rivet (1) and the rivet gun head (21) matching the rivet (1), reducing wastage of rivets (1), reducing the risk of damaging a rivet gun, and improving working efficiency.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a novel pipe cutting apparatus, comprising a clamping device, the clamping device comprising a frame which is provided with a clamping assembly provided with clamping claws and a mounting base, the clamping claw comprising a first clamping claw and a second clamping claw. The apparatus further comprises a feeding device, the feeding device comprising a table which is fixedly provided with a first-stage fixing frame, a second-stage fixing frame, and a third-stage fixing frame, and the second-stage fixing frame being disposed between the first-stage fixing frame and the third-stage fixing frame. The novel pipe cutting apparatus provided in the present invention comprises the clamping device and the feeding device, so that the structure is simple and reasonable, and maintaining is convenient. Pipes can be clamped by means of movements of an air cylinder, and the pipes are pushed to the pipe cutting apparatus by means of electrically lifting and lowering, thereby increasing the production efficiency and reducing labor intensity of operators.\nA: Disclose are a pin position adjusting device and a drilling machine. The pin position adjusting device comprises a bottom plate (1), a first adjusting mechanism (2) and a second adjusting mechanism (3). The first adjusting mechanism (2) and the second adjusting mechanism (3) are movably arranged on the bottom plate (1). The first adjusting mechanism (2) comprises a first mounting plate group (21) and a first clamping assembly (22), wherein the first mounting plate group (21) is provided with a first positioning slot (210), a first pin (100) is inserted into the first positioning slot (210), and a clamping end of the first clamping assembly (22) can cooperate with a side wall of the first positioning slot (210) to clamp and fix the first pin (100). The second adjusting mechanism (3) comprises a second mounting plate group (31) and a second clamping assembly (32), wherein a second pin (200) is inserted between a side wall of the second mounting plate group (31) and a clamping end of the second clamping assembly (32), and the clamping end of the second clamping assembly (32) can cooperate with the side wall of the second mounting plate group (31) to clamp and fix the second pin (200).\nB: Disclosed is a clamping device for multifunctional key groove milling, the clamping device comprising a clamping device body, one or two indexers and a plurality of pressing devices. The clamping device body is composed of a body 1 (1) and a body 2 (8), the body 1 and the body 2 are connected by means of a connection member, a spring (3) is arranged in the connection member, and the body 1 is fixed to a workbench. The indexer is composed of a fixing base (6) and an indexing block (5), the fixing base is connected to the clamping device body 1, a plurality of indexing holes are provided in the fixing base, an indexing pin is arranged on the indexing block, and the indexing block is connected to a workpiece. The pressing device is composed of a connection plate (10), a pressing plate (11) and an air cylinder (2), the connection plate and the pressing plate are connected by means of a connection member (9) and fixed to one side of the clamping device body 1, the air cylinder is fixed to the other side of the clamping device body 1, and an air cylinder ejector rod penetrates a hole provided in the clamping device body 1 and is in contact with the pressing plate. The problems in the background art of deformation being generated, machining quality being affected, and one end being unable to penetrate due to the fact that a shaft is long and thin are solved.\nC: A metal tube processing device, comprising a clamping apparatus and a cutting apparatus. The clamping apparatus is arranged at one side of a metal tube, and is used for clamping one end of the metal tube and driving the metal tube to move along the axial direction of the metal tube. The cutting apparatus comprises a first blade block, a second blade block, a first slide block, a second slide block, a first cylinder and a second cylinder. The first slide block is arranged at one side of the metal tube, the second slide block is arranged at the other side of the metal tube, and an upper surface of the first slide block is in contact with a lower surface of the second slide block. The first blade block is fixedly arranged at the end of the first slide block near to the metal tube, and the second blade block is fixedly arranged at the end of the second slide block near to the metal tube. The first cylinder is connected to the first slide block, and used for driving the first slide block to clamp the other end of the metal tube. The second cylinder is connected to the second slide block, and used for driving the second slide block to move horizontally, so as to cut the metal tube and obtain a metal tube having a preset length. The metal tube processing device increases production efficiency and yield.\nD: An integrated steel section material storage apparatus, comprising a material input end and a material output end. A plurality of pinch roller apparatuses are arranged at intervals between the material input end and the material output end. The pinch roller apparatuses comprise a frame, the frame is provided with first pinch rollers and second pinch rollers which are rotatably arranged at intervals, the first pinch rollers and the second pinch rollers are connected to a rotary drive assembly, and the first pinch rollers are provided with compression drivers, used for driving the first pinch rollers and the second pinch rollers to clamp a steel section, at both ends. A top portion of the frame is provided with material pressing apparatuses, used for compressing the steel section, between adjacent pinch roller apparatuses, and a bottom portion of the frame is provided with steel section conveying rollers between the first vertical pinch rollers and the second vertical pinch rollers.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA specialized A-grade door frame surface polisher, comprising a base (1). The base (1) is provided with a door frame positioning jig (2), a robot (3), and a control box (11). The robot (3) and the control box (11) are positioned next to the door frame positioning jig (3). A rotating base (10) is installed on a rotating shaft at a terminal of the robot (3). The rotating base (10) is installed with a servomotor (5), a pneumatic grinding machine (8), and a pneumatic polishing machine (9). An output terminal of the servomotor (5) is directly or indirectly installed with an electric-powered angle grinding machine (7). An upper surface or a side surface of the control box (11) is provided with a grinding wheel wear sensor (4) for measuring the degree of wear of an angle grinding wheel. An action of the output terminal of the servomotor (5) is controlled by a feedback signal sent by the grinding wheel wear sensor (4). After the angle grinding wheel completes a task, the wheel contacts the grinding wheel wear sensor at a uniform pressure. The grinding wheel wear sensor then feeds back data to the control box. The control box controls a feed amount of the output terminal of the servomotor, performing real-time monitoring of the amount of grinding performed by the angle grinding wheel, and compensating by use of the servomotor. The invention can achieve precision of up to 0.03 mm.\nA: Disclosed is an in-situ detection device for precision grinding of a ring with an inner spherical surface, the device comprising a base plate (4), a swing arm (5), a swing cylinder (6) and a precise displacement sensor (7). Further disclosed is an automatic detection method for use with the device, and the method is as follows: when detection is required in a grinding machining application, a grinding spindle system (1) automatically moves away from a ring with an inner spherical surface along a Y coordinate axis such that a grinding wheel (2) moves away from the ring with an inner spherical surface (3), the ring with an inner spherical surface and the grinding wheel stop rotating, and the swing arm swings clockwise by 90 degrees under the driving of the swing cylinder, at which point the precise displacement sensor is directly in front of the grinding wheel; the grinding spindle system moves along the Y coordinate axis towards the ring with an inner spherical surface, and when the precise displacement sensor comes into contact with a surface of the ring with an inner spherical surface, the grinding spindle system stops moving, and the distance from a position where the precise displacement sensor is at a zero point of detection to the position where the precise displacement sensor comes into contact with the surface of the ring with an inner spherical surface is recorded as the radius R of the ring with an inner spherical surface. The method achieves in-situ automatic precision detection of the dimensional precision of a workpiece with an inner spherical surface during grinding machining and has a high degree of automation.\nB: Disclosed is a mechanism for automatically replacing a grinding wheel piece for an electric sander. The mechanism comprises a first machine frame (1) and a sander manipulator (2) located above the first machine frame (1), wherein two grinding wheel piece positioning units are arranged on an upper end face of the first machine frame (1); the interior of the first machine frame (1) is provided with a horizontally moving slide platform (3) and a horizontal driving unit for driving the horizontally moving slide platform (3) to move back and forth between the two grinding wheel piece positioning units; and a vertical driving unit and a vertically moving slide platform moving up and down along the vertical driving unit are arranged on the horizontally moving slide platform (3), and a nut assembly and disassembly unit (8) is arranged on the vertically moving slide platform. The mechanism for automatically replacing a grinding wheel piece for an electric sander has a simple structure and realizes the automatic replacement of a grinding wheel piece, thereby shortening the time of replacing a sanding piece and improving working efficiency.\nC: A drill bit grinding machine, comprising a base (1), an electric motor box (2) arranged on the base (1), and an electric motor arranged in the electric motor box (2), wherein a grinding wheel (3) is arranged at an end of an output shaft of the electric motor; a grinding base (4) with a grinding hole is arranged on a side of the base (1) where the grinding wheel (3) is positioned; the base (1) is also provided with a regulating assembly which facilitates the movement and regulation of the grinding base (4); the grinding base (4) is fixedly connected to the regulating assembly by means of a connecting plate (5); a chuck assembly (6) for clamping a drill bit and in rotational fit with the drill bit is arranged in the grinding hole of the grinding base (4); and a regulating structure for regulating the position of the grinding base (4) relative to the grinding wheel (3) is arranged between the connecting plate (5) and the grinding base (4). The drill bit grinding machine has the advantages of easy operation and a high grinding accuracy.\nD: A surface polishing apparatus for mechanical accessories, comprising a base (2) and a U-shaped frame (5). The U-shaped frame (5) is fixedly provided on the base (2). The left and right inner walls of the U-shaped frame (5) are both provided with clamping assemblies. The top of an inner cavity of the U-shaped frame (5) is fixedly provided with a guide rod (8). A waist-shaped movable frame (10) is mounted on the guide rod (8) in a horizontally slidable manner. The upper and lower inner walls of the waist-shaped movable frame (10) are each provided with a second rack (32). A polishing motor (14) is fixedly mounted at the bottom of the waist-shaped movable frame (1) by means of a motor box (16). A polishing wheel (15) is fixedly connected to an output shaft of the polishing motor (14). The top of the inner cavity of the U-shaped frame (5) is symmetrically provided with two sliding rods (9). The two sliding rods (9) are both slidably sleeved with two sliding sleeves (34). A first driving motor is fixedly provided between the two sliding sleeves (34) by means of a motor support (23). A driving gear (33) is fixedly connected to an output shaft of the first driving motor. The apparatus uses a cyclically moving polishing operation mode, and the whole process is automatically performed by machinery, thereby effectively improving the polishing efficiency and quality of mechanical accessories while greatly reducing manpower.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are tooling and a method for using same. The tooling comprises supporting parts (11, 12) capable of supporting a piece to be assembled; pre-hung parts (21, 22) capable of making the tooling in a first target position; and locking parts (31, 32) capable of making a target state between the supporting parts and the pre-hung parts, and where the supporting parts and the pre-hung parts are in the target state, the piece to be assembled is in a second target position. The tooling can not only release both hands of operating personnel, but can also more stably hold a piece to be assembled at an assembly station, thereby greatly improving the convenience for a piece to be assembled in the assembly process.\nA: A mounting kit (1) comprises a sleeve (10) and a pushing member (20). The sleeve (10) has a guide channel (101). Two ends of the sleeve (10) respectively have a first opening (103) and a second opening (104). The diameter of the first opening (103) is greater than the diameter of the second opening (104). An inner diameter of the guide channel (101) gradually decreases in a direction extending from the first opening (103) to the second opening (104). Two ends of the pushing member (20) are respectively a pushing portion (22) and a force application portion (21). The maximum radial width of the pushing portion (22) is less than the diameter of the second opening (104). When the force application portion (21) is subjected to external force, the pushing portion (22) pushes a C-shaped buckle provided in the guide channel (101), such that the C-shaped buckle is pressed by a side wall forming the guide channel (101), and leaves the sleeve (10) by means of the second opening (104) to enter a mounting recess of a member to be mounted. The mounting kit allows a user to quickly and conveniently mount the C-shaped buckle in the mounting recess of the member to be mounted.\nB: A hood lock positioning tool, comprising a main body frame (1), and a hood lock positioning mechanism and tool positioning mechanism connected to the main body frame. The hood lock positioning mechanism is for positioning a hood lock to be installed at an installation position and comprises a hood lock positioning installation block (21) having a positioning recess capable of enabling hood lock attachment. The tool positioning mechanism is for fixing the hood lock positioning tool at a corresponding position on a vehicle, and comprises a plurality of positioning pins (11, 12) capable of moving along an axial direction and being inserted in a corresponding positioning hole on a vehicle. The positioning tool resolves the problem of an existing hood lock, which requires multiple position adjustments when being installed at a vehicle.\nC: An identification locking device, comprising: a mounting member (1), wherein the mounting member (1) is provided with: a moving part (11), an identification member (4) being connected to a gauge changing device, and the identification member (4) and the mounting member (1) being movably connected to each other via the moving part (11), and a locking groove (12), the locking groove (12) intersecting with the moving part (11); a connecting assembly (2), wherein the connecting assembly (2) comprises a first connecting member (21), the first connecting member (21) passing through the locking groove (12), and the first connecting member (21) being connected to the mounting member (1); and a locking assembly (3), wherein the locking assembly (3) is positioned in the locking groove (12), and the locking assembly (3) is provided with: a guide groove, the first connecting member (21) passing through the guide groove and being in guide-connection with the guide groove, and a first spring leaf (33), the first spring leaf (33) being provided with a first protrusion (331) and a second protrusion (332) which are oppositely arranged, wherein an opening part (333) arranged in a guide direction of the guide groove is formed between the first protrusion (331) and the second protrusion (332), the opening part (333) is arranged corresponding to the first connecting member (21), the size of the opening part (333) is smaller than that of the first connecting member (21), the first spring leaf (33) and the first connecting member (21) have a first state and a second state, and in the first state, the locking assembly (3) limits the action of the identification member (4), and in the second state, the locking assembly (3) does not limit the action of the identification member (4). Further disclosed are a variable gauge brake clamp unit comprising the identification locking device, and a rail vehicle comprising the variable gauge brake clamp unit. When the identification locking device is in a locked state, the identification member (4) can be prevented from falling off of same, the brake clamp unit can be ensured to move along with wheels, and hard collisions between the wheels and the brake clamp unit are prevented; and when the identification locking device is in an unlocked state, the identification member (4) can be detached from the gauge changing device, so as to facilitate the detachment and replacement of the identification member (4).\nD: A horizontal roll coater set and a roll changing method therefor. A roll coater comprises a frame (1), an upper coating head trolley (21), an upper coating head (22) mounted on the upper coating head trolley (21), a lower coating head trolley (31), and a lower coating head (32) mounted on the lower coating head trolley (31). A roll changing device is are arranged beside an upper trolley track. The roll changing device comprises at least one group of supporting arm roll changing mechanisms. Each supporting arm roll changing mechanism comprises a supporting arm (61) and a supporting arm driving unit. The supporting arm (61) is provided with a supporting part for supporting and protecting an upper coating roll. The supporting arm driving unit drives the supporting arm (61) to move between a roll changing position and a standby position; and at the roll changing position, the supporting part supports an old roll or causes a new roll to be at a target position. The roll changing method effectively reduces the difficulty of upper coating roll changing by maintenance personnel, thus reducing the workload of maintenance personnel and shortening an operation time.", "input": "", "output": "B"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA multipurpose footstool tool box, comprising an outer box (1), an inner box (2), and a handle (3). The bottom of the outer box (1) is provided with an opening; the top of the inner box (2) is provided with an opening; the outer box (1) covers the inner box (2); two opposite sidewalls of the outer box (1) are each provided with an elongated hole (4) with the top end closed and the bottom end opened; two ends of the handle (3) respectively pass through the elongated holes (4) to be hinged with two connection parts of the inner box (2); the handle (3) is provided outside the outer box (1) and the handle (3) at any angle of rotation will not influence the top surface of the outer box (1); the two ends of the handle (3) can move along the extension direction of the elongated holes (4) and slide out from openings at the bottom of the elongated holes (4), so that the outer box (1) is separated from the inner box (2). The multipurpose footstool tool box solves the problems that an existing automobile cleaning tool is not easy to collect and classify, easy to lose, inconvenient to find, and occupies a large space in an automobile boot.\nA: A toolbox capable of limiting the number of opened drawers, comprising a box body (1) and several drawers (2). A toggle lever (3) is provided on each drawer (2); a sleeve (4) is correspondingly provided at each toggle lever (3); the sleeve (4) is fixed on the box body (1); a sliding rod (5) capable of sliding up and down is provided in the sleeve (4); the upper and lower ends of adjacent sliding rods (5) are in contact with each other; the lower end of the sliding rod (5) is rotatably fixed with a spacer (6); a toggle groove (7) matched with the toggle lever (3) is provided on the spacer (6); by being matched with the toggle groove (7), the toggle lever (3) can toggle the spacer (6) to be rotated between the two sliding rods (5) corresponding to the spacer, so that the sliding rod (5) above the spacer moves upwards; a cam (8) is provided on the top end of an uppermost sliding rod (5); the cam (8) is fixedly connected with a lock cylinder of a drawer lock (9) and rotates along with the lock cylinder. The number of toolbox drawers that are simultaneously opened can be limited, and the specific number of the opened drawers also can be set according to requirements, thereby avoiding the phenomenon that the tool box is toppled because excessive drawers are opened due to the negligence of workers.\nB: A garden tool storage box which relates to the field of garden tools, comprising: a box body (1), a slide cover (2), rollers (3), cross bars (4), hooks (5), a handle (6) and a pusher (7); the box body (1) is a U-shaped groove structure, wherein upper edge positions of a front side vertical surface, a rear side vertical surface and a left side vertical surface of the box body (1) are provided with a slide groove which accommodates the slide cover, while the handle (6) is provided on a right side edge position of the slide cover; two ends of a cross bar (4) are fixed on an inner wall of the box body (1) by means of welding, and an end of a hook (5) is fixed on the cross bar (4) by means of welding; four rollers (3) are provided, the four rollers being provided at four corner positions of a bottom portion of the box body (1); the pusher (7) is fixed at the upper edge position of the left side vertical surface of the box body by means of welding. By virtue of the design structure of a box type storage, the present invention satisfies use requirements thereof, solves existing problems, and saves storage space, while classified placement facilitates searching for tools, and effectively protects the health of a person.\nC: A portable electric car washer is mainly formed by a soft water bag (1), a change valve (2), a belt wheel outer box, an electronic water pump, a water gun, and a water discharging pipe (5). The soft water bag (1), the water discharging pipe (5) and water feeding and discharging openings of the water pump are all connected to the change valve (2). The switching of the change valve (2) can make water pass through the water discharging pipe (5), is filled into the water bag (1) or ejected out of the water bag (1). After all water is discharged from the soft water bag (1), the soft water bag (1) can be placed in the belt wheel outer box. The belt wheel outer box is provided with a castor to movably support the soft water bag (1). The belt wheel outer box is mainly formed by a box body (3) and a cover plate (4). The castor is mounted below the cover plate (4), and the cover plate (4) can be taken off and is cushioned and fixed on a bottom of the box body (3) to movably support the box body (3). The cover plate (4) can cover the box body (3), so that the castor can be placed in the box body (3) and after being placed in, the box body (3) is like a suitcase. The portable electric car washer of the present invention is small, delicate, and portable, needs less power to take water, is easy to be placed in, is well compatible with a water source, has low requirements on cleanliness of the water source, does not require manually injecting water to start water pumping, and can also be used for rescue if a vehicle is trapped in water.\nD: A wooden anti-impact packaging container for a subway platform door, comprising a container body (1), an opening (2) being provided on an upper end of the container body (1), a cover board (3) being provided within the opening (2), an anti-impact mechanism (4) being arranged within the container body (1), omni wheels (14) being fixedly connected at two sides of a lower end of the container body (1), an anti-slip mechanism being fixedly connected at one side of rotary shafts of the omni wheels (14), handles (5) being fixedly connected at two sides of the container body (1), and a connection board (6) being further arranged on a lower surface of the container body (1), where insertion holes (7) are provided on a front surface of the connection board (6). It can be ensured that cargo within the container body is unaffected by impact by means of the provision of the anti-impact mechanism; water seeping into the inside of the container body and damaging the cargo when the container body encounters water can be prevented by means of the provision of a water resistant enclosure; and the container body slipping on a stairway ramp can be prevented by means of the provision of the anti-slip mechanism.", "input": "", "output": "C"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed are a pair of electric scissors, comprising: a handle (19), a rocker arm (27), a blade component (A) at the front part of the handle, as well as a control circuit board (26), a microswitch (21), a motor (18) and a pull rod component (B) inside the handle; the rear end of the blade component is rotationally arranged at the front part of the handle; the pull rod component is composed of a reciprocating lever (9) and a pull rod (7) rotationally connected with each other; when the blade component freely rotates relative to the handle, the pull rod can freely rotate relative to the reciprocating lever; that is, while the pull rod component guarantees an axial reciprocating motion and drives a mobile blade and a fixed blade of the blade component to complete scissoring by opening and closing, the pull rod component can rotate following the rotation of the blade component so that a cutter point direction of the electric scissors can be flexibly adjusted. The improved structure can be adaptive to scissors having a large cutter point or a small cutter point, and has the advantages of simple operation, effort saving in scissoring, and flexible rotating adjustment.\nA: A knife sharpener having a movable knife sharpening opening, comprising: a knife sharpening frame (1) and knife sharpening components (2) that are tiltingly provided on the knife sharpening frame (1), further comprised are vertical rod assemblies (3) and a horizontal rotary shaft (4) which is fixed on the knife sharpening frame (1) and movably connected to the vertical rod assemblies (3); the vertical rod assemblies (3) can reciprocate left and right as the rotary shaft (4) rotates; the knife sharpening components (2) and the vertical rod assemblies (3) form a V-shaped knife sharpening opening; and when the vertical rod assemblies (3) reciprocate left and right, the lowermost end of the V-shaped knife sharpening opening ascends or descends along the length direction of the knife sharpening components (2). When vertical rods (31) move relative to the positions of the knife sharpening components (2), the lowermost end of a V-shaped knife sharpening opening formed between the vertical rods (31) and the knife sharpening components (2) ascends or descends. The knife sharpening components (2) can carry out knife sharpening at any position in the length direction, thus improving the utilization rate of the knife sharpening components (2). The knife sharpening components (2) are placed side by side without interlocking, do not affect one another, are easy to operate, avoid blade edge curling, and can sharpen a cutting tool having a single-sided blade.\nB: A retractable automatic hair-releasing razor comb comprising a handle (1), and a comb head (2) connected to one end of the handle. An accommodating cavity (21) is provided within the comb head, a blade (3) is provided within the accommodating cavity, and one end of the blade is provided with comb teeth (31). An end of the comb head near the comb teeth is provided with an opening (22). The handle is provided with an installation cavity (11) therein. A pressing assembly is provided within the installation cavity to drive the end of the blade near the comb teeth to extend out of the opening. The pressing assembly comprises a connection member (4), a pressing member, and an elastic position restoration member. One end of the connection member is connected to the blade, and another end of the connection member is rotatably connected to an inner wall of the installation cavity. The pressing member is provided on the connection member. The handle is provided with a pressing hole (12) for the pressing member to extend out. Pressing down on the pressing member enables the connection member to drive the end of the blade having the comb teeth to extend out from the opening, and unlocking and releasing of the pressing member retracts the end of the blade having the comb teeth back into the accommodation cavity, such that the blade is not exposed and will not cause accidental injuries of users, thereby improving safety.\nC: An electric clipper blade head parallel operation device (100), comprising a movable blade (11), a fixed blade (10), a blade support (12), a blade head support (13) and a pressure spring (14). One end of the fixed blade (10) is provided with first teeth (101). The blade head support (13) is arranged at the end of the fixed blade (10) away from the first teeth (101). One end of the movable blade (11) is provided with second teeth (111). The movable blade (11) is arranged on the end of the fixed blade (10) away from the blade head support (13). The second teeth (111) abut against the first teeth (101). The bottom of the blade support (12) is connected to a top surface of the movable blade (11). A sliding groove (121) is provided on the surface of the blade support (12) facing away from the movable blade (11). An oil storage groove (122) is further provided in the sliding groove (121). The pressure spring (14) comprises connecting parts (141), and a sliding part (142) having two ends respectively connected to the connecting parts (141). The connecting parts (141) are respectively connected to the blade support (13). The sliding part (142) is positioned on the sliding groove (121). The present device reduces abrasion, prolongs blade service life, has high structural stability, meets user requirements, and is simple in structure, low in cost and convenient to clean.\nD: An electric pruner, comprising a machine body housing (28), a machine head main body provided at the front end of the machine body housing (28), and a power cord (29) provided at the back end of the machine body housing (28). A motor (1) is provided inside the machine body housing (28), the motor (1) is connected to a gearbox gear ring (3), the gearbox gear ring (3) is connected to a feed screw nut (19); the motor (1) is connected to a planetary gear (4) by means of a motor gear (2), the planetary gear (4) is fixed onto a planetary gear carrier (5), one end of the planetary gear carrier (5) is connected to a universal joint transmission block (6), a universal joint sleeve (17) is provided at the outer side of the universal joint transmission block (6); a first bearing (7) is fixed onto the planetary gear carrier (5), a first spherical bowl (9), a first ball head (10) and a second bearing (12) are respectively and sequentially fixed to a third bearing (13), a second ball head (14) and a second spherical bowl (15) which are provided on a lead screw (16); the lead screw (16) is fixed onto the machine head main body, the lead screw (16) is provided with a Hall plate (21) at the lower part of the fixing end of the machine head main body, a trigger (20) is provided at the bottom of the Hall plate (21), a magnet (18) is provided between the Hall plate (21) and the lead screw (16); the front end of the machine head main body is provided with a fixed cutter blade (24) and a movable cutter blade (25), the fixed cutter blade (24) is provided at the lower end of the movable cutter blade (25).", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nDisclosed is a die cutting machine for preventing a nesting defect caused by electrostatic adsorption of materials to a machine, characterized in that: a feeding end of the die cutting machine is provided with an antistatic rope for discharging static electricity from a material strip, and the antistatic rope is located beside a position where the material strip passes and is in contact with the material strip; the surface of a lower template of the die cutting machine is provided with a plurality of parallel ribs, and a gap is reserved between the top ends of adjacent ribs so as to reduce the friction between the material strip and the lower template; a discharging end of the die cutting machine is provided with a material lifting roller mounted above a pulling-down shaft,the material lifting roller is located, in a horizontal direction, on the outer side of the contact part of an pulling-up shaft and the pulling-down shaft and is parallel to the width direction of the material strip, the material strip extending from the pulling-down shaft passes over the material lifting roller, and the material strip attached to the pulling-down shaft is lifted. The die cutting machine of the present invention reduces the negative impact of the electrostatic adsorption force on the material correction movement during the positioning process of a nesting hole, and can complete high-precision machining.\nA: Disclosed is a rapier tape stamping die with stable punching. The rapier tape stamping die comprises an upper die set and a lower die set. The upper die set comprises an upper die plate (2), a punch fixing plate (3), a punch (4) and a discharge plate (5), wherein the upper die plate (2) is connected to a die handle (1), the punch fixing plate (3) is mounted on a lower surface of the upper die plate (2), an upper surface of the discharge plate (5) is connected to a lower end of a discharge spring (11), an upper end of the discharge spring (11) is fixed inside the punch fixing plate (3), and the punch (4) penetrates the discharge plate (5) and the punch fixing plate (3) and a top end thereof is connected to the lower surface of the upper die plate (2). The lower die set comprises a female die (7) and a lower die plate (9), wherein the female die (7) is mounted on an upper surface of the lower die plate (9), the female die (7) is fixed to the lower die plate (9) by means of a retaining pin (8), and a hole channel for a head portion of the punch (4) to pass through is provided in the female die (7); and a guide pin (6) penetrates the discharge plate (5) and the punch fixing plate (3), a top end of the guide pin (6) is connected to the lower surface of the upper die plate (2), and a lower end of the guide pin (6) is inserted into the female die (7). The rapier tape stamping die with stable punching can prevent situations, such as that where a fiber cannot be cut off by means of punching and shearing or where a fiber tears, from occurring to a rapier tape during punching, and can prevent unstable punching due to the waggling of a material tape during punching.\nB: Disclosed in the present application are an automatic roll replacing device, and winding equipment. The automatic roll replacing device comprises: a mounting frame; an unwinding mechanism, comprising an unwinding shaft connected to the mounting frame in such a manner that the unwinding shaft can rotate around its own axis; a spare material mechanism, comprising a spare material shaft having a contact end and a material pushing member providing an axial pushing force for a spare material roll on the spare material shaft, the spare material shaft being connected to the mounting frame in such a manner that the spare material shaft can rotate around the rotation axis, when the spare material shaft is located at a material pushing position, the contact end contacting the unwinding shaft, and the material pushing member being controlled to push the spare material roll on the spare material shaft to transfer to the unwinding shaft; and a strip connection mechanism, provided on the mounting frame, and used for cutting off a work material strip unwound from the unwinding shaft and connecting the cutoff work material strip to the spare material roll. According to the automatic roll replacing device provided by the present application, the use of the spare material shaft and the material pushing member implements pushing of a spare material roll on the spare material shaft to the unwinding shaft, and there is no need to provide two unwinding mechanisms, thereby greatly simplifying the structure of the automatic roll replacing device, and reducing the occupied space.\nC: A pole feeding apparatus (100), comprising a sheet inserting mechanism (10), a cutting mechanism (20) and a feeding mechanism (30) successively arranged along the conveyance direction of a material strip (300). The sheet inserting mechanism is used to clamp the material strip. The cutting mechanism is used to cut the material strip. After the material strip is cut, the sheet inserting mechanism further conveys the material strip in a direction close to a winding needle (200) or the cutting mechanism moves in a direction away from the winding needle, so that the leading end of the material strip is exposed to the cutting mechanism. The feeding mechanism is used to clamp the leading end of the material strip and move in the direction close to the winding needle, so that the leading end of the material strip is close to and fed into the winding needle. Further disclosed is a winding device.\nD: Disclosed is an automatic die-cutting mechanism, comprising a rack, a die-cutting assembly disposed on the rack, a first motor disposed on the rack and a second motor connected to a first adjusting assembly, the first adjusting assembly being used for adjusting the distance between a second transmission roller and a first driving roller. The automatic die-cutting mechanism of the present invention has the following beneficial effects: 1. the distance between a second transmission roller and a first driving roller may be adjusted, that is, the moving distance of a substrate reaching a preset die-cutting position is temporarily adjusted, achieving a speed adjusting effect, and the operation means is simple and convenient, and regulation and control are accurate; 2. the attaching firmness of the substrate and the first driving roller is improved; and 3. a die does not need to be used in the present invention, and for the substrate, the cutting of any pattern may be achieved by means of the first driving roller cooperating with a three-axis linkage function of a die-cutting assembly, and the advantages of having low costs and high efficiency for die-cutting of small-batch products.", "input": "", "output": "D"}
{"instruction": "Please select the most similar patent number from A, B, C and D. Which number is?\nA diamond single wire electric spark composite machining device, comprising a wire roller drive motor (1); one end of the wire roller drive motor is provided with a wire roller (2), the front end of the wire roller is provided with a pulse power supply (3), the lower end of the wire roller is provided with a cutting head frame (4), the outer surface of the wire roller is provided with a diamond wire (5), the lower end of the cutting head frame is provided with a silicon rod (6), and the lower end of the silicon rod (6) is provided with rod holders (11). Further disclosed is a diamond single wire electric spark composite machining method. By means of providing the pulse power supply, a positive lead wire (13), a negative lead wire (14), and an electric brush (12), traditional electric spark machining and diamond wire cutting techniques are combined to implement electric spark diamond wire composite machining on semiconductor crystalline silicon. On the basis of diamond wire single wire cutting, electric discharge machining is added to improve the machined surface. In addition, pits on the machined surface produced by electric spark machining are beneficial in reducing the work intensity of a subsequent texturing process.\nA: A diamond grinding wheel drive mechanism for use in rotary cutting, comprising a base plate (1); the base plate (1) is provided thereon with a first fixing plate (3) and a second fixing plate (4); the first fixing plate (3) is provided with a first mounting plate (5) at a front portion thereof, and the first mounting plate (5) is provided with a first limiting plate (6) at a position on an outer sidewall thereof; the second fixing plate (4) is provided with a second mounting plate (7) at a front portion thereof, and the second mounting plate (7) is provided with a second limiting plate (8) at a position on an outer sidewall thereof; a fixed chassis (11) is provided between the first mounting plate (5) and the second mounting plate (7); a drive motor (12) is provided at a position on one side of the fixed chassis (11), a drive wheel (13) is provided at a position on the other side of the fixed chassis (11); the drive wheel (13) is connected to the drive motor (12) by means of a drive shaft (14), the drive shaft (14) passing through the fixed chassis (11). By means of the drive shaft, the drive motor may control the drive wheel to rotate; and by sleeving a diamond grinding wheel over an outer circumferential surface the drive wheel, it is possible to conveniently drive and control the diamond grinding wheel.\nB: Disclosed is a gang saw using a saw blade to cut granite and quartz stone slantwise, comprising a gang saw (1), an electric motor I(3), an electric motor II(4), a stone material rack (5), a base platform (7), wherein the stone material rack (5) is placed in the base platform (7), and the electric motor II(4) rotating clockwise is provided on a front end of the base platform (7); the gang saw (1) is provided above the stone material rack (5), a diamond cutter bit is provided on each saw blade, and the electric motor I(3) is provided on the front end of the gang saw (1); a drain pipe (2) is provided above the gang saw (1). By setting the tilt angle of the gang saw, a huge cutting impact force is generated to facilitate the cutting of rocks with high hardness, and it is convenient to use a large volume of water to timely wash out the debris generated when cutting the stone materials.\nC: A machining apparatus for integrated grinding and polishing of diamond, comprising a rack, a base device (1) and a grinding and polishing device (2); the base device (1) comprises a slide base capable of being fed along a Y-axis with respect to the rack and a base (11) capable of being rotatably connected to the slide base around a Z-axis, wherein a clamp (12) capable of clamping diamond (3) is mounted on the base (11); the grinding and polishing device (2) comprises a main shaft arranged along the Z-axis, wherein an inner ring grinding wheel (21) and an outer ring polishing wheel (22) are sleeved on the main shaft, and when the main shaft rotates, the inner ring grinding wheel (21) and the outer ring polishing wheel (22) can be driven to rotate together; and the diamond (3) is ground and polished by means of rotation of the inner ring grinding wheel (21) and the outer ring polishing wheel (22), feeding of the slide base and rotation of the base (11). The machining apparatus can integrate the grinding and polishing of diamond into one process of machining, and the diamond has less surface scratch damage and uniform surface quality. Also provided is a machining method.\nD: Disclosed is a method for cutting a silicon rod, comprising: adjusting, during a cutting process, the wire-supply amount and/or feed rate of new wire at different positions of a crystal cross-section, or using a cooling tube (4) to supply cutting fluid to diamond wires and using all the diamond wires to cut a silicon rod (3). A distance between the supply position of the cutting fluid and the edge of the silicon rod is 10-20 mm. Also disclosed is a diamond multi-wire cutting device. The method for cutting silicon rods ensures that the silicon wafers obtained by cutting are of high quality.", "input": "", "output": "D"}