baber/WOPTO huggingface dataset:
Patent WO-2020093731-A1 (WO)
Inventor: TANG WEIHANG
IPC: B60J5/04
Filed: 2019-07-19
Abstract: A lead screw and nut type opening and closing mechanism for an automatic door, an automatic vehicle door, and a vehicle. The opening and closing mechanism comprises a driving device, a gearbox (50), a nut gear (20), and a lead screw (30). The driving device is fixedly connected to a vehicle door (100). The gearbox (50) is hinge-connected to the vehicle door (100). The nut gear (20) is provided in the gearbox (50). One end of the lead screw (30) is hinge-connected to a vehicle body (200), and the other end extends axially. The nut gear (20) is sleeved on the lead screw (30). The driving device is used to drive the nut gear (20) to rotate, such that the nut gear (20) performs reciprocating linear motion along the lead screw (30), so as to push the vehicle door (100) to open or close relative to the vehicle body (200). The opening and closing mechanism has a simple structure, snug fit, and high transmission efficiency, thereby meeting development requirements of small size and light weight.
Patent WO-2020252850-A1 (WO)
Title: 动力电池包和车辆
Inventor: SUN HUAJUN
IPC: H01M10/625
Filed: 2019-07-24
Abstract: 本申请公开了一种动力电池包和车辆，所述动力电池包包括：托盘和上盖，所述上盖与所述托盘连接以限定出单体电池容纳腔；多个单体电池，所述单体电池安装于所述单体电池容纳腔内，所述单体电池与所述上盖之间设置有导热绝缘层；所述上盖包括导热板。本申请的动力电池包，结构简单，组装成本低，能量密度高，且散热能力强，在散热时无需消耗整车的冷量。
Patent WO-2021012261-A1 (WO)
Title: Indication de mesures pour réduire au minimum un test de conduite dans une communication sans fil
Inventor: FANG JIANMIN
IPC: H04W24/10
Filed: 2019-07-25
Abstract: La présente invention concerne des procédés, des systèmes et des dispositifs liés à une communication sans fil numérique et plus particulièrement, des techniques associées à l'indication de la réduction au minimum de mesures d'un test de conduite (MDT). Dans un mode de réalisation donné à titre d'exemple, un procédé de communication sans fil comprend la réception d'une configuration pour réduire le surdébit du test de conduite d'un nœud de réseau fédérateur et des informations d'état indiquant un état d'un terminal à partir d'un terminal. Le procédé peut également consister à déterminer l'état du terminal en fonction des informations d'état indiquant l'état du terminal. Le procédé peut également consister à transmettre un rapport de mesure à un nœud de réseau comprenant les informations d'état indiquant l'état du terminal.
Patent WO-2020224070-A1 (WO)
Inventor: LIU YANG
IPC: H01L27/32
Filed: 2019-08-05
Abstract: Provided is an OLED display panel, comprising a base plate, a cover plate and a plurality of auxiliary electrodes. The base plate comprises a substrate, a drive circuit layer, a pixel definition layer, a light-emitting material layer and a common electrode. In at least one pixel definition region, protrusions are formed at a surface of the pixel definition layer far from the drive circuit layer; and the auxiliary electrodes and the common electrode have at least two electrically connecting surfaces within each corresponding pixel definition region in which protrusions are formed.
Patent WO-2020134161-A1 (WO)
Title: 一种量子点发光二极管及其制备方法
Inventor: NIE ZHIWEN
IPC: H01L51/50
Filed: 2019-09-02
Abstract: 公开一种量子点发光二极管及其制备方法，所述量子点发光二极管包括设置在阳极和量子点发光层之间的功能层，所述功能层包括n层层叠设置的功能结构单元，所述功能结构单元由层叠设置的空穴传输层和电子阻挡材料层组成，所述功能结构单元中的空穴传输层靠近阳极设置，所述功能结构单元中的电子阻挡材料层靠近量子点发光层设置，所述n为大于等于2的整数，且所述n层功能结构单元中的相邻两层功能结构单元中，靠近量子点发光层的电子阻挡材料层材料的HOMO能级大于靠近阳极的电子阻挡材料层材料的HOMO能级。本公开通过所述功能层的设置能够提升空穴传输至量子点发光层的传输速率，从而平衡电子和空穴的注入速率，以提高载流子在量子点层中的复合效率，进而提高量子点发光二极管的发光效率、稳定性和使用寿命。
Patent WO-2021031272-A1 (WO)
Title: Agv scheduling method based on dynamic path planning
Inventor: Wang Liuting
IPC: G06Q10/08
Filed: 2019-09-20
Abstract: The present invention relates to the technical field of optimal scheduling, and provides an AGV scheduling method based on dynamic path planning. The strategy implements initialization of an AGV working site, scheduling with different precision, initialization of a working map, and simulation of an actual map, and can solve the multi-unit multi-task problem in any scene. An adjacency matrix and a distance matrix are established on the basis of a Floyd-Warshall algorithm; an AGV selection process and the obstacle avoidance of the AGV in the execution process are optimally scheduled, the execution route of the AGV is dynamically planned in a single step, the AGV moving time is shortened, the working efficiency is improved, and the method has an important function in converting industrial automatic production into a flexible production mode.
Patent WO-2020119219-A1 (WO)
Inventor: DONG HAO
IPC: H04L12/58
Filed: 2019-09-24
Abstract: 本申请公开了消息发送方法，该方法包括：当即时消息服务器通过移动互联网向消息客户端发送富媒体卡片失败时，根据会话相关附加信息以及富媒体卡片中的卡片描述信息确定待发内容，然后将其发送至通信中心，并通过通信中心生成短信或彩信，然后将所生成的短信或彩信发送至消息客户端。
Patent WO-2020063614-A1 (WO)
Inventor: CAI HAIJIAO
IPC: G02B27/00
Filed: 2019-09-25
Abstract: L'invention concerne un procédé et un appareil de suivi de lunettes intelligentes, ainsi que des lunettes intelligentes et un support d'informations, qui se rapportent à un dispositif intelligent. Le procédé comprend les étapes suivantes : après la collecte d'une image par des lunettes intelligentes, reconnaissance d'un objet dans l'image (S101), et diffusion d'une position focale définie dans l'image ou d'un objet présent dans une zone à un utilisateur (S102). Au moyen du procédé, on diffuse une position définie ou un objet présent dans une zone à un utilisateur, plutôt que de diffuser directement tous les objets dans une image, ce qui permet d'améliorer l'efficacité de diffusion de lunettes intelligentes, et d'améliorer l'expérience de l'utilisateur.
Patent WO-2020215616-A1 (WO)
Inventor: WU JUNYI
IPC: G01B11/30
Filed: 2019-10-09
Abstract: A dynamic detection system and method for the flatness of a cathode plate, wherein the detection system mainly comprises a laser generator (1), a detection surface (2), a front camera (3), and a side camera (4); the laser generator (1) is provided at a place directly opposite to directly below a diagonal intersection of the detection surface (2), and is used to project a group of an n*n dot matrix on the detection surface (2); the front camera (3) is fixed directly above the laser generator (1); the laser generator (1) and the front camera (3) are both fixed on a fixing rod A (6); the side camera (4) is fixed on a fixing rod B (7); and the front camera (3) and the side camera (4) upload collected image information to an industrial computer (5) by means of a data transmission channel (8). The detection system solves the detection problem of the shaking process of a cathode plate product during high-speed operation; the point positions for detection are more densely distributed, and the detection results are more accurate; and statistics of the product performance status may be performed in real time and viewed online.
Patent WO-2021068144-A1 (WO)
Title: Portable and detachable sterilization instrument
Inventor: WANG HUA
IPC: A61L2/10
Filed: 2019-10-10
Abstract: A portable and detachable sterilization instrument, comprising a housing upper cover (1), a solar panel (2), a photoresistor (5), a deep ultraviolet lamp (6) and a buzzer (12). The solar panel (2) is connected to the top of a housing using a bonding mode, and the housing upper cover (1) is fixedly connected to a housing lower cover (4); the housing lower cover (4) is fixedly connected to a detachable silica gel ring (3), and the photoresistor (5) and the deep ultraviolet lamp (6) are welded to the lower portion of a circuit board (7) and located in the center of the housing. By providing the deep ultraviolet lamp (6) for sterilization, the wavelength of deep ultraviolet rays thereof being in the range of 240 to 280 nm, the portable detachable sterilization instrument may destroy the molecular structures of DNAs or RNAs in bacterial viruses, thus resulting in growth cell death and regenerative cell death. UVC waveband ultraviolet light which is highly efficient, highly strong and has a long service life is used for irradiating objects so as to directly kill various bacteria, viruses, parasites and other pathogens, thereby achieving the effects of sterilization and disinfection and a high practicability.
Patent WO-2020186733-A1 (WO)
Inventor: FENG YUXIANG
IPC: H02M1/088
Filed: 2019-10-10
Abstract: A power device (100) comprises a control input end (SS), an upper bridge arm switch tube (127), a lower bridge arm switch tube (128), an upper resistor group (128), a lower resistor group (135), a first drive circuit (129) and a second drive circuit (120). The control input end (SS) receives a first level, a second level or a third level, such that the first drive circuit (129) and the second drive circuit (120) respectively output voltage levels within a first voltage range, a second voltage range or a third voltage range which are different from one another.
Patent WO-2021003890-A1 (WO)
Inventor: ZHAO JIHONG
IPC: A61K36/575
Filed: 2019-10-25
Abstract: The present invention provides a method for preparing a tetrodotoxin esterified product. The method comprises the following steps: dissolving tetrodotoxin into an unsaturated fatty acid glyceride or a saturated fatty acid glyceride, and performing a chemical reaction to produce a new compound. The present invention has the following technical effects: I. the present invention directly dissolves a tetrodotoxin acidic aqueous solution into a single component of an unsaturated fatty acid glyceride or a saturated fatty acid glyceride without transition via an emulsifier, and thus the method is simple and convenient; II, the tetrodotoxin esterified product of the present invention is a new compound obtained by chemically reacting tetrodotoxin with an unsaturated fatty acid glyceride or a saturated fatty acid glyceridel; III, the tetrodotoxin esterified product of the present invention do not have the high toxicity of tetrodotoxin, and has absolute safety to humans when used in oral formulations; and IV, the tetrodotoxin esterified product of the present invention can only be used as a single drug material, or can be combined with other drugs to form a compound formulation or used in combination.
Patent WO-2020253023-A1 (WO)
Inventor: WEI RAN
IPC: B23B39/00
Filed: 2019-10-28
Abstract: A novel hole punch for a hardware product, comprising a base (1), a support frame (2), a support plate (3), a cylinder (4), a telescopic rod (5), a hole punch body (6), a mold holder (7), a mold (8), a hole distance positioning frame (9), and a hole distance positioning sheet (10). The mold holder (7) is fixedly connected at the middle of the upper portion of the base (1), and the mold (8) is movably connected in the mold holder (7); the hole distance positioning frame (9) is arranged outside the mold holder (7), and the hole distance positioning sheet (10) is movably connected onto the hole distance positioning frame (9). The novel hole punch for a hardware product uses a rotatable mold, so that a hardware product can be punched twice without replacing the hole punch, and thus the utilization efficiency of the hole punch is improved.
Patent WO-2021056714-A1 (WO)
Inventor: AN JIAN
IPC: B23P23/06
Filed: 2019-11-11
Abstract: Disclosed is a hot stamping production line, comprising a heating furnace (1), a press feeding system (2), a forming device (3), a press unloading system (4), a discharging system (5) and a protective atmosphere room. The protective atmosphere room comprises a room body (61), a gas inlet system (62), a gas exhaust system (63) and a measurement system (64) for measuring the oxygen content of the room body (61), wherein a material inlet and a material outlet are provided in the room body (61), and the gas inlet system (62) and the gas exhaust system (63) are respectively in communication with the room body (61); the press feeding system (2), the forming device (3) and the press unloading system (4) are sequentially arranged in the room body (61) in a material sheet transmission direction; a material outlet of the heating furnace (1) extends into the room body (61) via the material inlet and corresponds to the press feeding system (2); and at least part of the discharging system (5) extends into the room body (61) via the material outlet and corresponds to the press unloading system (4). The hot stamping production line can solve the problem of high-temperature material sheets being oxidized by oxygen in the air during the transferring and forming process.
Patent WO-2021103193-A1 (WO)
Inventor: GUO ZHONGPING
IPC: E21F15/00
Filed: 2019-12-16
Abstract: A goaf crossing filling method, relating to the technical field of downhole filling and mining, and comprising the steps of: after the working face advances, providing a horizontal filling body behind the working face from the open-off cutting, constructing a vertical filling body before the advancing distance of the working face reaches a periodic weighting distance, continuing to advance the working face and continuing to construct the horizontal filling body, and providing the vertical filling body periodically until the working face advances to a stop line, such that the construction of the goaf filling body is completed. The method is implemented by means of a goaf crossing filling system, which comprises a gangue paste conveying pipe (1), a mixer (2), a filling pump (3), a hydraulic support (4), horizontal filling pipes (5), a vertical filling pipe (6), wooden pillars (7), horizontal blocking plates (8), and vertical blocking plates (9), the filling pump (3) being connected to the horizontal filling pipes (5) and the vertical filling pipe (6) by means of the gangue paste conveying pipe (1). The method is simple to implement, the construction cost of the filling body is low, and the collapse of the goaf roof can be prevented, such that the ground surface subsidence can be effectively controlled, and the recovery rate of coal resources can be improved.
Patent WO-2020135199-A1 (WO)
Title: 心肌细胞制剂及其制备方法和应用
Inventor: Wang jia-xian
IPC: A61P9/04
Filed: 2019-12-19
Abstract: 提供了一种心肌细胞制剂、其制备方法及制剂在治疗心力衰竭方面的应用。该心肌细胞制剂包括由多能干细胞分化的心肌细胞和成纤维细胞，心肌细胞制剂中的心肌细胞浓度为0.75×10 7～1.0×10 9细胞/mL，心肌细胞含量高于80％且成纤维细胞含量不高于20％。该心肌细胞制剂能改善心脏的射血分数和左心室缩短分数，增加左心室内壁厚度。
Patent WO-2021127880-A1 (WO)
Title: 摄像光学镜头
Inventor: ZHU JUNYAN
IPC: G02B13/00
Filed: 2019-12-23
Abstract: 一种摄像光学镜头（10），该摄像光学镜头（10）自物侧至像侧依序包含：第一透镜（L1），第二透镜（L2），第三透镜（L3），第四透镜（L4），第五透镜（L5），第六透镜（L6），第七透镜（L7）,以及第八透镜（L8）；且满足下列关系式：0.75≤f1/f≤1.90；f2≤0mm；-1.00≤(R13+R14)/(R13-R14)≤-0.45；2.50≤d11/d12≤5.50。该摄像光学镜头（10）具有大光圈、广角化、超薄等良好的光学性能。
Patent WO-2020140792-A1 (WO)
Inventor: YI CHENG
IPC: G06T1/00
Filed: 2019-12-24
Abstract: La présente invention concerne un procédé et un appareil de traitement d'image, un support de stockage et un dispositif informatique, le procédé consistant à : acquérir une image étiquetée dans le domaine fréquentiel, l'image étiquetée dans le domaine fréquentiel étant obtenue par transformation dans le domaine fréquentiel d'une image étiquetée dans le domaine spatial ; acquérir un paramètre de transparence correspondant à l'image étiquetée dans le domaine fréquentiel ; acquérir des données de page cible ; et, en fonction du paramètre de transparence, effectuer un rendu de superposition de couches d'image de l'image étiquetée dans le domaine fréquentiel et des données de page cible. La solution de la présente invention peut protéger efficacement les données de page cible.
Patent WO-2020147535-A1 (WO)
Inventor: HSIEH MINGCHE
IPC: G09F9/30
Filed: 2019-12-25
Abstract: La présente invention concerne un panneau d'affichage, un dispositif d'affichage, un procédé d'affichage en trois dimensions et un système d'affichage en trois dimensions. Le panneau d'affichage comprend un substrat de base, un dispositif de commande, une pluralité de structures électroluminescentes et une pluralité de régulateurs ; les régulateurs sont disposés sur un côté en dessous des structures électroluminescentes à proximité du substrat de base ; et au moins certains des régulateurs sont conçus pour se déplacer dans la direction proche ou éloignée des structures électroluminescentes sous la commande du dispositif de commande et pour amener les structures électroluminescentes à se déplacer.
Patent WO-2021012620-A1 (WO)
Title: 反熔丝胞电路及集成芯片
Inventor: LAI YIZHANG
IPC: G11C17/16
Filed: 2019-12-30
Abstract: 一种反熔丝胞电路及集成芯片，其中该反熔丝胞电路包括编程单元(100)及检测单元(200)，所述编程单元(100)，用于根据编程电压、使能电压对反熔丝胞进行编程；所述检测单元(200)，用于检测反熔丝胞的工作电流，根据所述工作电流生成工作电压；在所述工作电压大于预设电压阈值时生成反馈电压；所述编程单元(100)，还用于在接收到反馈电压时结束编程。上述反熔丝胞的编程时间是变动的，依据每个反熔丝胞的编程所需时间而决定，相比于传统的固定编程周期，上述反熔丝胞的编程周期大大缩短了，同时由于周期的缩短，其编程过程中的电路损耗也下降了。
Patent WO-2020156118-A1 (WO)
Title: 管理方法及终端设备
Inventor: LIU WENPING
IPC: G06F3/0488
Filed: 2020-01-13
Abstract: 本公开提供一种管理方法及终端设备，其中，所述管理方法应用于终端设备，所述管理方法包括：接收针对至少一个对象中的目标对象的选择操作，所述至少一个对象显示于所述终端设备的第一屏幕；确定目标文件夹；将所述目标对象存入所述目标文件夹；其中，所述目标文件夹的内容显示于所述终端设备的第二屏幕，或，所述目标文件夹的标识显示于所述终端设备的第二屏幕。
Patent WO-2020147831-A1 (WO)
Inventor: LIU WEN-CHIN
IPC: A47G19/22
Filed: 2020-01-17
Abstract: 本发明公开了一种隔热杯子，其包括不同口径大小的纸质锥体杯身和纸质锥体杯环，所述纸质锥体杯环的底端套合固定在所述纸质锥体杯身的顶端，在两者的连接处形成隔热层。本发明既有隔热效果、又能降低耗材经济环保，还能减少运输或存储空间。
Patent WO-2021146937-A1 (WO)
Title: Character recognition method, character recognition device and storage medium
Inventor: HUANG GUANGWEI
IPC: G06K9/32
Filed: 2020-01-21
Abstract: A character recognition method, a character recognition device and a storage medium. The character recognition method comprises: acquiring an input image; performing text detection on the input image, so as to determine a text box group, the text box group comprising at least one text box; determining a target text box from the at least one text box, the target text box comprising target text; acquiring a coordinate group of at least one text box and a deflection angle relative to a reference direction, determining a correction angle and a correction direction for the target text box according to the deflection angle and the coordinate group of the at least one text box, and rotating the target text box according to the correction angle and direction, so as to obtain a final target text box; and recognizing the final target text box to obtain target text.
Patent WO-2021147002-A1 (WO)
Title: Downlink frequency hopping communication for reduced capability user equipment
Inventor: WEI CHAO
IPC: H04W72/04
Filed: 2020-01-22
Abstract: A reduced-capability user equipment (UE) uses frequency hopping to improve downlink (DL) coverage. Specifically, the UE may receive a physical downlink shared channel (PDSCH) using frequency hopping among a plurality of narrow bands in a wide bandwidth part. A bandwidth of narrow band is not larger than a maximum wireless communication bandwidth of the UE.
Patent WO-2021168661-A1 (WO)
Inventor: WU ZUOMIN
IPC: H04W56/00
Filed: 2020-02-25
Abstract: The present application relates to an information transmission method, a terminal device and a network device. The method comprises: a terminal device receiving first indication information; and the terminal device determining a first offset parameter value according to the received first indication information, wherein the first offset parameter value is used for determining a time sequence for transmission. By means of the embodiments of the present application, communication with an accurate time sequence can be completed between a network device and a terminal device.
Patent WO-2020199814-A1 (WO)
Inventor: LI XINXIAN
IPC: H04W72/04
Filed: 2020-02-29
Abstract: Provided are a communication method and apparatus. The method comprises: a terminal receiving first configuration information from a network device, and determining time unit aggregation according to the first configuration information, wherein the time unit aggregation comprises at least one time unit; the terminal receiving control information from the network device, and determining, according to the control information, at least one first time sub-unit and at least one second time sub-unit in the time unit aggregation; and the terminal receiving, on the at least one first time sub-unit, data corresponding to a first transmission block, and receiving, on the at least one second time sub-unit, data corresponding to a second transmission block. By means of the method and apparatus provided in the present application, different time-domain resources, carrying different pieces of data, in the time unit aggregation can be determined; therefore, the time-domain resources occupied by data reception and transmission can be flexibly adjusted according to the actual requirements of data transmission, thereby improving the data transmission efficiency.
Patent WO-2020187131-A1 (WO)
Inventor: YANG XIN
IPC: H04M1/02
Filed: 2020-03-12
Abstract: 本申请实施例提供了一种电子设备的屏幕处理方法、装置、电子设备及存储介质，方法包括：获取第一显示区域和第二显示区域的显示亮度；获取第一显示区域和第二显示区域的显示时长；根据第一显示区域和第二显示区域的显示亮度及显示时长，对需要进行均一化处理的第一显示区域或第二显示区域进行均一化处理。本申请提供的电子设备的屏幕处理方法、装置、电子设备及存储介质，可以对具有屏的电子设备的屏幕进行处理，使得屏幕的不同区域之间不会产生较大的显示差异，避免用户在展开使用时产生视觉误差。
Patent WO-2021196059-A1 (WO)
Title: 一种用于预防新型冠状病毒的消毒柜
Inventor: LIU HAOYUAN
IPC: A61L2/26
Filed: 2020-04-01
Abstract: 一种用于预防新型冠状病毒的消毒柜，包括柜体（1），柜体（1）的前侧开设有通槽并通过通槽限位转动有柜门（2），柜体（1）的顶部固定连接有电机（3），电机（3）上输出轴的底部固定连接有轴一（4），轴一（4）的底部固定连接有圆盘（5），圆盘（5）的上表面固定连接有臭氧发生器（6），臭氧发生器（6）上的出气口固定连接有喷管（7），喷管（7）的表面贯穿圆盘（5）并与圆盘（5）固定连接，柜体（1）的内壁限位转动有轴二（8），轴二（8）的表面固定连接有两个齿轮一（9），圆盘（5）的下表面固定连接有弧形齿板（51）。通过这些结构之间的配合使用，解决了实际使用中由于传统的消毒设备难以完整的对物件进行消毒处理从而容易发生病毒残留的问题。
Patent WO-2021000637-A1 (WO)
Inventor: LI YONGQUAN
IPC: C12R1/545
Filed: 2020-04-21
Abstract: Provided are a daptomycin-producing Streptomyces griseus L340 strain and application thereof, the accession number of the strain being CGMCC 17921. The L340 strain has relatively stable genetic characteristics and fermentation units, and the culture and fermentation conditions thereof are suitable for industrial production of daptomycin. The strain also eliminates the pigment interference in the later separation and purification so as to realize a clean metabolism spectrum, such that the strain has advantages in the later separation and purification.
Patent WO-2021017548-A1 (WO)
Title: Dual-servo riveting device capable of torque monitoring
Inventor: YAO FENG
IPC: B21J15/16
Filed: 2020-04-24
Abstract: A dual-servo riveting device capable of torque monitoring, comprising a riveting mechanism, a torque mechanism, and an extension rotating mechanism. The riveting mechanism comprises a first motor (1), a screw rod (2), a pull rod (3), a first synchronous belt pulley (4), and a screw (9). The output end of the first motor is connected to the upper end of the screw rod by means of a coupling (6). A screw nut seat (8) is connected to the lower end of the screw rod by means of a screw nut (7). The lower end of the screw nut seat is fixed to the upper end of the pull rod, and the pull rod fixes the first synchronous belt pulley. The torque mechanism comprises a second motor (11), a torque sensor (12), and a second synchronous belt pulley (13). The output end of the second motor is connected to the upper end of the torque sensor by means of couplings. The torque sensor is connected to a first linkage shaft (14) by means of a coupling. A second synchronous belt pulley is fixed at the lower end of the first linkage shaft. A synchronous belt (16) is sleeved on the first synchronous belt pulley and the second synchronous belt pulley. The riveting device can effectively control the riveting effect of a rivet nut and detect the riveting strength of the rivet nut.
Patent WO-2021022837-A1 (WO)
Title: 一种无线充电装置、位置检测的方法及系统
Inventor: WU BAOSHAN
IPC: H02J50/90
Filed: 2020-04-24
Abstract: 本申请公开了一种无线充电装置、位置检测的方法及系统，该装置包括发射端或接收端；发射端包括发射端谐振网络和逆变电路，发射端谐振网络包括发射线圈；接收端包括接收端谐振网络和整流电路；接收端谐振网络包括接收线圈；接收端还包括：辅助线圈；在无线充电时，辅助线圈两端的电压由发射线圈的电流产生；该装置还包括：控制器；控制器，用于根据发射线圈的自感以及以下至少一项参数获得发射端和接收端之间的相对位置；至少一项参数包括：发射线圈和所述辅助线圈之间的耦合系数，以及，所述发射线圈和所述辅助线圈之间的线圈互感中的一项或两项。至少一项参数与相对位置之间存在单一变化关系，因此能够准确检测无线充电的发射端和接收端之间的相对位置。