Source: http://www.google.com/patents/US20040133311?ie=ISO-8859-1&dq=Wowio
Timestamp: 2015-07-06 13:50:11
Document Index: 147076815

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Patent US20040133311 - Artificial intelligence robot toy and control method thereof - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsDisclosed is an artificial intelligence robot toy that can be easily assembled and controlled in various shapes by using one kind of joint motor. The robot toy includes: a plurality of joint mechanism parts assemblable and disassemblable to form various shapes of robots; a master main-processor unit...http://www.google.com/patents/US20040133311?utm_source=gb-gplus-sharePatent US20040133311 - Artificial intelligence robot toy and control method thereofAdvanced Patent SearchPublication numberUS20040133311 A1Publication typeApplicationApplication numberUS 10/740,612Publication dateJul 8, 2004Filing dateDec 22, 2003Priority dateJan 3, 2003Also published asCN1517138A, CN100563767C, DE10361726A1Publication number10740612, 740612, US 2004/0133311 A1, US 2004/133311 A1, US 20040133311 A1, US 20040133311A1, US 2004133311 A1, US 2004133311A1, US-A1-20040133311, US-A1-2004133311, US2004/0133311A1, US2004/133311A1, US20040133311 A1, US20040133311A1, US2004133311 A1, US2004133311A1InventorsChang-bae Park, Dae-Kyung Kim, Nam-Yong LeeOriginal AssigneePark Chang-Bae, Dae-Kyung Kim, Nam-Yong LeeExport CitationBiBTeX, EndNote, RefManReferenced by (3), Classifications (24), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetArtificial intelligence robot toy and control method thereof
BRIEF DESCRIPTION OF THE DRAWINGS [0020] The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings: [0021]FIG. 1 is a block diagram of an artificial intelligence robot toy according to the present invention; [0022]FIGS. 2A and 2B are flowcharts illustrating operation flows of an artificial intelligence robot toy according to the present invention; [0023]FIGS. 3A and 3B are disassembled perspective views of a joint mechanism part in an artificial intelligence robot toy according to the present invention; [0024]FIGS. 4A and 4B to FIGS. 7A and 7B are perspective views of first to eleventh joint parts configured to couple the joint mechanism part; [0025]FIGS. 8A to 18A are disassembled perspective views illustrating coupling states between the joint mechanism part and the first to eleventh joint parts; [0026]FIGS. 8B to 18B are assembled perspective views illustrating coupling states between the joint mechanism part and the first to eleventh joint parts; [0027]FIG. 19 is a perspective view of a coupling state according to an embodiment of the present invention; and [0028]FIG. 20 is a coupling state of a robot toy according to another embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION [0029] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. [0030]FIG. 1 is a block diagram of an artificial intelligence robot toy according to the present invention, FIGS. 3A and 3B are disassembled perspective views of a joint mechanism part in an artificial intelligence robot toy according to the present invention, and FIGS. 4A and 4B to FIGS. 7A and 7B are perspective views of first to eleventh joint parts configured to couple the joint mechanism part. [0031] In an embodiment of the present invention, as shown in FIGS. 1 and 3, an artificial intelligence robot toy includes: a plurality of joint mechanism parts 40 assemblable and disassemblable to form various shapes of robots; a master main-processor unit board 10 provided in any one of the plurality of joint mechanism parts 40, for outputting a robot control signal such that another joint mechanism parts have a predetermined operation pattern; a plurality of joint control part 20 respectively provided in the remaining joint mechanism parts, for transmitting and receiving data to and from the master main-processor unit board 10 while operating the corresponding joint mechanism parts by using at least one pattern, based on the operation pattern of the master main-processor unit board 10; and first to eleventh joint parts 50 to 60 for coupling the plurality of joint mechanism parts 40 so as to form the various shapes of robots. [0032] As shown in FIGS. 3A and 3B, the joint mechanism part 40 includes: a lower case 41 provided with a guide part 41 a formed at one end thereof, an opening 41 b formed at the other end thereof facing the guide part 41 a, and two coupling holes 41 c formed protruded outwardly from an outer wall thereof such that the second to fifth joint parts 51 to 54 are inserted; a housing 42 coupled to the lower case 41, the housing 42 being coupled with the master main-processor unit board 10 or the joint control part 20 at a side surface of the housing 10, coupled with the rotatable gear shaft 42 a at one end thereof, the gear shaft 42 a being protruded in a vertical direction and having a screw hole 42 c such that the second to fifth joint parts 51 to 54 are coupled attachable or detachable, the housing 42 having a rectangular insertion part 42 b of which one surface is opened and which the first to third joint parts 50 to 53, sixth, seventh and eleventh joint part 55, 56 and 60 are detachably inserted into and coupled to, and screw holes 45 a and 46 a formed at both sidewalls of the insertion part 42 b in a vertical direction and coupled by two screws 45 and 46 inserted therein and nuts from a lower direction means is inserted; an upper case 43 coupled with the lower case 41 by four screws and having a slot 43 a formed at one end configured to sealingly close the housing 42; and a pentagonal coupling shaft 47 formed extending from an end of the gear shaft 42 a and protruded through the slot 43 a of the upper case 43, the coupling shaft having a screw hole 47 a at an upper center thereof where the first, fifth, ninth and tenth joint parts 50, 54, 58 and 59 are detachably coupled. [0033] Referring to again FIG. 1, the joint control part 20 includes: an inverse power preventing part 21 supplied with a non-driving voltage of the master main-processor unit board 10 to prevent an inverse voltage input to the master main-processor unit board 10; a constant voltage part 22 for converting and outputting the output non-driving voltage of the inverse power preventing part 21 to a constant level of digital voltage; a filter part 23 for filtering a noise including a ripple voltage from the supply voltage of the constant voltage part 22 and supplying a filtered voltage; a voltage detecting part 25 for detecting level of the non-driving voltage inputted from the inverse power preventing part 21 and outputting a resultant voltage; a motor 30 coupled to a lower surface of the housing 42 of the joint mechanism part 40 by two screws and rotating clockwise or counterclockwise; a motor driving part 27 for controlling and driving the motor 30 in a pulse width modulation (PWM) way according to the voltages obtained by the constant voltage part 22 and the inverse power preventing part 21; a gear part 31 coupled to a shaft of the motor 30 penetrating an upper surface of the housing 42, for decelerating a rotational ratio of the motor 30, transferring the decelerated rotational ratio to the gear shaft 42 a, and controlling the operation pattern of the joint mechanism part 40; a rotation sensing part 32 driven by the supply voltage of the filter part 23, for sensing the rotation of the gear part 31; a current detecting part 28 for detecting a load current of the motor 30 through the motor driving part 27; first to third A/D converters 26, 28 and 33 for converting and outputting the output signals of the voltage detecting part 25, the current detecting part 28 and the rotation sensing part 32 to digital signals respectively; and a main-processor unit 24 for outputting a pulse width modulation (PWM) signal and a direction (DIR) signal depending on operation modes provided from the master main-processor unit board 10 to control the operation of the motor 30 through the motor driving part 27 and respectively computing the voltage level, the current level and the rotational ratio obtained by the first to third A/D converters 26, 28 and 33 and transmitting the computed voltage level, the current level and the rotational ratio to the master main-processor unit board received in any one of the joint mechanism parts. [0034] The gear part 31, as shown in FIGS. 3A and 3B, includes a first gear 31 a coupled to the shaft of the motor 30 protruded through the upper surface of the housing 42 and rotated, a second gear in mesh with the first gear 31 a, and a third gear 31 c formed in the gear shaft 42 a of the joint mechanism part 40, and in mesh with the second gear 31 b to decelerate the rotational ratio. [0035] As shown in FIG. 4a, the first joint part 50 is a cylindrical shaft having a predetermined length, the cylindrical shaft having a pentagonal insertion groove 50 a formed at one end thereof and a rectangular insertion piece 50 b formed at the other end thereof such that the joint part 50 is inserted onto the coupling shaft 47 through the slot 43 a of the joint mechanism part 40 and inserted into the insertion part 42 b through the guide part 41 a of the another joint mechanism parts. Also, the first joint part 50 has a vertical penetration hole 50 c penetrating from the pentagonal insertion groove 50 a to the insertion piece 50 b. [0036] As shown in FIGS. 4b and 4 c, each of the second and third joint parts 51 and 52 has a spanner type insertion hole 51 b, 52 b with an axial hole 51 c, 52 c formed at one end of a shaft thereof and a rectangular insertion piece 51 a, 52 a formed at the other end of the shaft so as to be inserted onto the gear shaft 42 a and the insertion parts 42 b of the another joint mechanism parts through the guide part 40 of the one joint mechanism part 40. Herein, the shaft of the second joint part 51 is a straight-line type that is short in length between the insertion hole 51 b and the insertion piece 51 a, while the shaft of the third joint part 52 is a curved type that is long in length between the insertion hole 52 b and the insertion piece 52 a. [0037] As shown in FIG. 5A, the fourth joint part 53 has spanner type insertion holes 53 a and 53 b formed at both ends of a shaft thereof so as to be inserted onto the gear shaft 42 a through the gear shaft 42 a of the one joint mechanism part 40 and the guide part 41 a of other joint mechanism parts. Both insertion holes 53 a and 53 b of the fourth joint part 53 are arranged at an angle of 90 degrees referenced on the shaft. [0038] As shown in FIG. 5b, the fifth joint part 54 has a pentagonal insertion groove 54 a formed at one end thereof and a spanner type insertion hole 54 b formed at the other end thereof so as to be respectively inserted onto the coupling shaft 47 through the slot 43 a of the one joint mechanism part and inserted onto the gear shaft 42 a through the guide part 41 a of the another joint mechanism parts. Also, the fifth joint part 54 has a vertical penetration hole penetrating from the pentagonal insertion groove 54 a to the insertion hole 54 b, and an axial hole 54 c formed at the insertion hole 54 b side to is perpendicular to the vertical penetration hole 54 d. [0039] As shown in FIGS. 6A and 6B, each of the sixth and seventh joint parts 55 and 56 has rectangular insertion pieces 55 a, 55 b, 56 a, 56 b formed at both ends of a shaft thereof such that when the one joint mechanism part 40 is coupled with the another joint mechanism parts, the rectangular insertion pieces 55 a, 55 b, 56 a, 56 b are inserted into the insertion part 42 b of the joint mechanism part 40. Herein, the shaft of the sixth joint part 55 is short in length between both insertion pieces 55 a and 55 b, while the shaft of the seventh joint part 56 is long in length between both insertion pieces 56 a and 56 b. [0040] As shown in FIG. 6c, the eighth joint part 57 is an approximately triangular plate shape having a constant thickness, and has rectangular insertion holes 57 a, 57 b arranged at an angle of 90 degrees so as to connect one joint mechanism part 40 with other joint mechanism parts. The rectangular holes 57 a and 57 b is characterized in that each of which outer surface is opened. [0041] Also, as shown in FIGS. 7A and 7B, the ninth and tenth joint parts 58 and 59 are inserted onto the coupling shaft 31 a of the joint mechanism parts 40 to function as a wheel or a wing, and each of them has a pentagonal insertion hole 58 a, 59 a formed protruding from a center portion thereof. Also, each of the ninth and tenth joint parts 58 has an axial hole 58 b, 59 b penetrating the pentagonal insertion groove 58 a, 59 a. [0042] Lastly, the eleventh joint part 60, as shown in FIG. 7c, is inserted into the insertion part 42 b of the joint mechanism parts 40 to serve as a foot of the robot toy, and has a rectangular insertion piece 60 a at one end of a shaft thereof and a hemispherical rolling part 60 b, which is wider in area than the insertion piece 60 a. [0043] Hereinafter, preferred embodiments having the above construction according to the present invention will be described in detail with reference to FIGS. 1 to 20. [0044] To assemble various shapes of robots needing a motion using one kind of joint mechanism part, as shown in FIGS. 3A and 3B, the housing 42 is received in the lower case 41 having the guide part 41 a at one side thereof and the opening 41 b at the other side thereof. At this time, the housing 42 houses the motor 30, the gear part 31, and the joint control part 20. Alternatively, the master main-processor unit board 10, etc., is coupled in the housing 42. After that, the upper case 43 is covered on the lower case 41. The upper case 43, the lower case 41 and the housing 42 are stably fixed by screwing four screws, so that one joint mechanism part 40 is formed. At this time, the coupling shaft 47 coupled with the third gear 31 c of the gear part 31, is positioned at the slot 43 a of the upper case 43, and the gear shaft 42 a and the insertion part 42 b of the housing 42 are protruded respectively toward the guide part 41 a of the lower case 41 and the opening part 41 b of the lower case 41. [0045] To assembly a desired shape of robot toy using a plurality of joint mechanism parts each having the above construction, there are needed the first to eleventh joint parts 50 to 60 as shown in FIGS. 4 to 7. [0046] The first joint part 50 shown in FIG. 4A has the pentagonal insertion groove 50 a formed at one end of the shaft thereof and the rectangular insertion piece 50 b formed at the other end of the shaft thereof, and is, as shown in FIGS. 10A and 10B, used to connect the coupling shaft 47 of one joint mechanism part 40 with the insertion part 42 b of the other joint mechanism parts. In other words, as shown in FIG. 10A, the first joint part 50 is inserted onto the coupling shaft 47 of one joint mechanism part 40 through the insertion groove 50 a thereof, and then a screw 48 is screwed with the screw hole 47 a of the coupling shaft 47 through the insertion groove 50 a of the first joint part 50, so that the first joint part 50 is coupled with the coupling shaft 47 of the joint mechanism part 40. Thereafter, the insertion piece 50 b of the first joint part 50 is inserted into the insertion part 42 b of another joint mechanism part, and then two screws 45 and 46 are inserted into the screw holes 45 a and 46 a formed in the insertion part 42 b and are then screwed by nuts, so that two joint mechanism parts are assembled as shown in FIG. 10B. [0047] Each of the second and third joint parts 51 and 52 shown in FIGS. 4b and 4 c has the spanner type insertion hole 51 b, 52 b formed at one end of the shaft thereof and the rectangular insertion piece 51 a, 52 a formed at the other end of the shaft, and is, as shown in FIGS. 8a, 8 b, 13 a and 13 b, used to connect the gear shaft 42 a of one joint mechanism part 40 with the insertion part 42 b of other joint mechanism parts. In other words, as shown in FIGS. 8a and 13 a, the second and third joint parts 51 and 52 are inserted onto the gear shaft 42 a of one joint mechanism part 40 through the insertion holes 51 b and 52 b thereof, and then a screw 49 is inserted into the axial holes 51 c and 52 c of the insertion holes 51 b and 52 b, and the screw hole 42 c of the gear shaft 42 a corresponding to the axial holes 51 c and 52 c, and is screwed so that the second and third joint parts 51 and 52 are not released from the gear shaft 42 a. After that, the insertion pieces 51 a and 52 a of the second and third joint parts 51 and 52 are coupled in the same manner as that of the first joint part 50, so that an assembly is completed as shown in FIGS. 8B and 13B. [0048] The fourth joint part 53 shown in FIG. 5A has spanner type insertion holes 53 a and 53 b formed at both ends of the shaft thereof, and is, as shown in FIG. 17, used to connect the gear shaft 42 a of one joint mechanism part 40 with the gear shaft 42 a of other joint mechanism parts. Here, the coupling method of both the insertion holes 53 a and 53 b is the same as that coupling the insertion holes 51 b and 52 bof the second and third joint parts 51 and 52 to the gear shaft 42 a. [0049] Like the fourth joint part 53, the fifth joint part 54 shown in FIG. 5B has the pentagonal insertion groove 54 a formed at one end of the shaft thereof and the spanner type insertion hole 54 b formed at the other end of the shaft thereof, and as shown in FIGS. 9A and 9B, is inserted onto the coupling shaft 47 through the slot 43 a of one joint mechanism part at the insertion groove 54 a thereof, and the insertion hole 54 b is inserted onto the gear shaft 42 a through the guide part 41 a of the other joint mechanism parts an coupled. At this time, the pentagonal insertion groove 54 a is coupled in the same manner as the insertion groove 50 a of the first joint part 50, and the spanner type insertion hole 54 b is coupled in the same manner as the insertion hole 51 b of the second joint part 51 is coupled with the gear shaft 42 a. [0050] Each of the sixth and seventh joint parts 55 and 56 shown in FIGS. 6A and 6B has rectangular insertion pieces 55 a, 55 b, 56 a, 56 b formed at both ends of the shaft thereof, and are, as shown in FIGS. 11A, 11B, 15A and 15B, respectively inserted into the insertion part 42 b of one joint mechanism part and the insertion part of another joint mechanism part and coupled. Here, the sixth joint part 55 has the short shaft between both insertion pieces 55 a and 55 b, while the seventh joint part 56 has the shaft longer than the sixth joint part 55. The coupling method of the sixth and seventh joint parts 55 and 56 are the same as the method coupling the insertion piece 51 a of the second joint part 51 to the insertion part 42 b. [0051] The eighth joint part 57 shown in FIG. 6c has the rectangular insertion holes 57 a, 57 b arranged at an angle of 90 degrees, and is, as shown in FIGS. 14A and 14B, used to rotatably connect the gear shaft 42 a of one joint mechanism part 40 with the coupling shaft 47 of other joint mechanism parts. In other words, in a state that the insertion groove 50 a of the first joint part 50 and the insertion hole 51 b of the second joint part 51 are coupled in the aforementioned manner, the insertion holes 57 a and 57 b of the eighth joint part 57 are forcibly inserted and coupled with the insertion pieces 50 b and 51 a of the first and second joint parts 50 and 51, so that the assembly is completed as shown in FIG. 14B. [0052] Each of the wheel type ninth joint part 58 and the wing type tenth joint part 59 shown in FIGS. 7A and 7B has the pentagonal insertion hole 58 a, 59 a formed protruding from a center portion thereof, and is, as shown in FIGS. 12A, 12B, 16A and 16B, inserted onto the coupling shaft 47 of the joint mechanism part 40 to serve as a wheel or a wing. First, two joint mechanism parts are contacted with each other, and a screw is inserted into the coupling hole 41 c and screwed so that the two joint mechanism parts are stably coupled. After that, the insertion grooves 58 a, 59 a of the ninth and tenth joint parts 58 and 59 are inserted onto the coupling shaft 47 of the two joint mechanism parts 58 and 59 and a screw is inserted into the axial holes 58 b, 59 b of the insertion grooves 58 a, 59 a and screwed so that the assembly is completed as shown in FIGS. 12B and 16B. In particular, the tenth joint part 59 is coupled with the joint mechanism 40 and is advantageous in climbing steps having a low height difference while rotating. [0053] The eleventh joint part 60 shown in FIG. 7c has the rectangular insertion piece 60 a at one end of the shaft thereof and the hemispherical rolling part 60 b at the other end of the shaft thereof, which is wider in area than the insertion piece 60 a, and is, as shown in FIGS. 18A and 18B, used inserted into the insertion part 42 b of the joint mechanism parts 40. In particular, the rolling part 60 b serve as a foot of the robot toy during the movement of the robot toy, and the insertion piece 60 a is coupled in the same manner as that of the aforementioned joint parts so that the assembly is completed as shown in FIG. 18B. [0054] Also, the plurality of joint mechanism parts 40 are coupled in series or parallel through two power lines, a single transmission line and a reception line, and are mounted on the master main-processor unit board 10. [0055] Thus, the first to eleventh joint parts 50 to 60 are selectively used according to the shapes of the robot toys desired for assembling, to couple the plurality of joint mechanism parts 40 sequentially. After a desired robot toy needing a motion as shown in FIG. 19 or FIG. 20 is assembled, if an operation starts through a switch (not shown in the drawings), the master main-processor unit board 10 received in one joint mechanism part reads in a current position from the main-process unit 24 of the joint control part 20 received in the plurality of joint mechanism parts 40, i.e., reads in the angle of the joint through the reception port (Rx) of one line if the joint mechanism part 40 is a hand, reads in a moved distance through the reception port (Rx) of one line if the joint mechanism part 40 is a foot, and reads in a moved angle through the reception port (Rx) of one line if the joint mechanism part 40 is tail or head. [0056] Then, the action mode (operation mode) of each of the joint mechanism parts 40 is set in a motor down mode. Thereafter, a command is transmitted to each of the joint mechanism parts 40 through the transmission port (Tx) of one line, and then current position and current are received through the reception port (Rx) of one line. [0057] After the current position of each of the joint mechanism parts 40 is ascertained, preset target position and velocity are computed on the basis of the received current position and then the computed new target position and sampling time (velocity value, i.e., motion angle of joint) are transmitted through the transmission port (Tx) in accordance with communication protocol. After that, the action mode (operation mode) of the plurality of joint mechanisms 40 is set in a position sense mode, and then a command is transmitted to the respective joint mechanism parts 40. In other words, directly after the target position and velocity value are transmitted, the present position and the present current are received to ascertain whether or not there exists a variation between the previous position and the present position, and also to ascertain the state of the present current. Afterwards, a new action is planned using the ascertained position variation and the current state information. If the plan is completed, steps of computing next target position and velocity of each of the joint mechanism parts suitable for new actions, i.e., steps of computing the motion angle of the joints, are repeatedly performed. [0058] In the meanwhile, the main-processor unit 24 of the joint control part 20 received in each of the joint mechanism parts 40 initializes variables if an operation starts through a switch (S10). [0059] After the initialization is released, the main-processor unit 24 ascertains a current output position of the gear part 31 through the third A/D converter 33 and the rotation sensing part 32 (S12), and calculates an error between the new target position provided by the master main-processor unit board 10 and the ascertained current position (S14). Then, variation rate in the calculated errors is computed (S16) and a proportional differential control arithmetic is performed (S18). [0060] After that, a non-driving voltage provided from the master main-processor unit board 10 is detected through the inverse voltage preventing part 21, the voltage detecting part 25 and the first A/D converter 26 (S20), and a real voltage applied to the motor 30 is calculated from the proportional differential arithmetic value and the level of the detected non-driving voltage. The calculated voltage is modulated to a PWM signal, and the PWM signal is applied to the motor 30 through the motor driving part 27 together with the direction (DIR) signal to drive the motor 30 (S22). [0061] When the motor 30 is driven, the first to third gears 31 a, 31 b, 31 c of the gear part 31 of the corresponding joint mechanism part 40 rotate, the corresponding joint mechanism part coupled to the gear shaft 42 a and the coupling shaft 47 through the first to eleventh joint parts 50 to 60 traces the target position provided from the master main-processor unit board 10. [0062] In the above, if the joint mechanism part corresponds to a hand, the angle of the joint traces the target position. If the joint mechanism part corresponds to a foot, the moved distance traces the target position. If the joint mechanism part corresponds to tail or head, left and right motion angles trace the target position. [0063] Thus, in a state that the respective joint mechanism parts 40 are moved by the motor 30 and the gear part 31, the main-processor unit 24 detects the current of the motor 30 through the current detecting part 28 and the second A/D converter 29 (S24) and determines whether or not the detected current exceeds a set limitation current (S26). If it is determined that the detected current exceeds the set limitation current, the main-processor unit 24 cuts off the voltage applied to the motor 30 (S28). If it is determined that the detected current does not exceed the set limitation current, the main-processor unit 24 determines whether or not the limitation current exceeds 1ms, i.e., repetition routine time elapses (S30). If it is determined that the limitation time does not exceeds the repetition routine time, the main-processor unit 24 maintains the standby state, while if it is determined that the limitation time exceeds the repetition routine time, the main-processor unit 24 repeatedly performs the steps after the step S10. [0064] Thus, while performing motions with tracing the target position provided from the master main-processor unit board 10, if interrupt is generated (S40), the main-processor units 24 of the joint control parts 20 received in the respective joint mechanism parts 40 receive data through the reception port (Rx) (S42), and classify operation modes to be described later (S44). [0065] Also, the main-processor units 24 change the operation mode variables and the target position (S46), and change the transmission port (Tx) thereof to an output port (S48). Herein, the main-processor unit 24 receives data from the master main-processor unit board 10 by using the transmission port (Tx) as an input port in a normal state, and if each operation thereof is ended, the main-processor unit 24 changes the transmission port (Tx) to the output port so as to transmit the result of the respective operations in the format of data. [0066] Next, after changing the transmission port (Tx) to the output port, the main-processor unit 24 detects the current position of the motor 30, i.e., the current position of the corresponding joint mechanism part 40 and the current of the motor 30, and transmits the detected results to the master main-processor unit board 10 through the changed output port (S50) . After transmitting the detected current position and current, the main-processor unit 24 changes the transmission port (Tx) to the input port (S52), and completes the interrupt operation. [0067] The aforementioned operation modes are classified into position send mode, motor down mode, power down mode and wheel act mode. [0068] The position send mode indicates an operation mode in which the motor 30 is operated for the position control, a position control range is 0-332.3�, and the present position and current thereof are transmitted after the position control command is received. [0069] The motor down mode indicates a mode in which the motor power is changed to zero, a user can arbitrarily change the motor position by his (or her) power, and the present position and current return to after a command is received. The motor down mode operates as a sensor used for changing the position by an external force. [0070] The power down mode is used for minimizing the operation power consumption of the motor system and the system power. The power down mode returns the IDs and positions of the corresponding joint mechanism parts 40 after receiving a command, and is used to want to know the motor IDs of the corresponding joint mechanism parts 40. [0071] Lastly, the wheel act mode operates the motor to drive the wheel, makes it possible to rotate the wheel clockwise or counterclockwise by an angle of 360� and control the velocity of the wheel. In the wheel act mode, rotation amount and present position are transmitted after a command is received. [0072] The aforementioned operation modes receive commands from the master main-processor unit board 10. [0073] From the above descriptions, unlike the conventional art, which does not allow a user to expandably assemble one set of robot toy as various shapes of robot toys, for instance, puppy robot, dinosaur robot, or android, it can be well known that it is possible to expandably assemble various shapes of robot toys needing motions by using a plurality of joint mechanism parts corresponding to one kind. [0074] As described above, robot toys according to the present invention provide users with love and interest. Also, it is possible to address all functions of such robot toys to a maximum degree at a low manufacturing cost and to assemble and control the robot toys requesting motions in various shapes with ease by using one kind of joint mechanism part. Further, the inventive robot toys provide users with easy disorder coping and expandable assembling capability. [0075] It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Referenced byCiting PatentFiling datePublication dateApplicantTitleUS7988522 *Jun 9, 2008Aug 2, 2011Hon Hai Precision Industry Co., Ltd.Electronic dinosaur toyUS7996111 *Jan 8, 2008Aug 9, 2011Ensky Technology (Shenzhen) Co., Ltd.Robotic deviceUS20100281897 *Nov 12, 2008Nov 11, 2010Daikin Industries, Ltd.Motor current calculation device and air conditioning apparatus* Cited by examinerClassifications U.S. Classification700/245International ClassificationB25J13/00, A63H11/18, A63H3/46, A63H33/00, B25J5/00, B25J9/08, A63H11/10, A63H11/00, A63H9/00, B25J9/12Cooperative ClassificationA63H11/20, A63H11/00, A63H11/18, A63H9/00, A63H11/10, A63H3/46, A63H33/003European ClassificationA63H11/18, A63H33/00D, A63H11/10, A63H9/00, A63H3/46, A63H11/00Legal EventsDateCodeEventDescriptionDec 22, 2003ASAssignmentOwner name: MEGAROBOTICS CO., LTD., KOREA, REPUBLIC OFFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PARK, CHANG-BAE;KIM, DAE-KYUNG;LEE, NAM-YONG;REEL/FRAME:014828/0642Effective date: 20031218RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services