Patent abstracts

Citation

(2008), "Patent abstracts", Industrial Robot, Vol. 35 No. 1. https://doi.org/10.1108/ir.2008.04935aad.006

Patent abstracts

Patent abstracts

Title: Armed robot and its control method

Patent number: JP2006326737

Publication date: 1 December 2006

Applicant: Toyota Motor Corp

Problem to be solved. To provide an armed robot capable of restraining unnatural oscillation of arms even in an armed robot having right arms with less rigidity without adding new members, and its control method.

Solution. This two-leg robot 1 having multiple joints has a command part (here, pre-reading buffer) for outputting signals of action commands to a robot arm, a first arm controller for controlling the robot arm at high- positional accuracy according to the output signals of the command part, a second arm controller for controlling the arm at low-positional accuracy according to the output signals of the command part, and a switch judging part for selecting control by the first controller when the action command to the robot arm requires high accuracy, and selecting control by the second arm controller when the command requires low accuracy.

Title: Legged mobile robot controller, legged mobile robot and legged mobile robot control method

Patent number: US2007150105

Publication date: 28 June 2007

Applicant:

A legged mobile robot, a legged mobile robot controller and a legged mobile robot control method are provided to perform a loading operation to load a gripped object in parallel on a target place having a height where a stretchable range of arm portions of the legged mobile robot is enhanced with no operator's handling. The legged mobile robot includes the arm portions having links for gripping an object, and leg portions having links for moving, and the arm and the leg portions are joined to a body thereof. The legged mobile robot controller includes a data- acquisition unit, a whole-body cooperative motion control unit and a loading detection unit, and controls motions of the legged mobile robot based on posture/position data regarding a posture/position of each link of the legged mobile robot and on an external force data regarding an external force affecting the arm portions.

Title: Robot cooperative control method and system

Patent number: JP2007058736

Publication date: 8 March 2007

Applicant: Fanuc Ltd

Problem to be solved. To improve the cooperation accuracy of operations of a plurality of robots by simultaneously generating an operation basic periodic signal in each robot control device.

Solution. A reference signal is transmitted from one of a plurality of robot control devices mutually connected by a communication connection means to the other robot control device, and based on the time from generation of the operation basic periodic signal to transmission of the reference signal in the one of the plurality of robot control devices, the time from generation of the operation basic periodic signal to receipt of the reference signal in the other robot control device, and a communication delay time required for communication between the one of the plurality of robot control device and the other robot control device, the generation timing of operation basic periodic signal in the other robot control device is matched with the generation timing of operation basic periodic signal in the one of the plurality of robot control devices.

Title: Robot programming device

Patent number: US2007032905

Publication date: 8 February 2007

Applicant: Fanuc Ltd (JP)

A robot programming device, in which the teaching of the cooperative motion of a plurality of robots may be carried out in a short time so as to reduce the number of man-hours for starting-up a robot system including the robots. The robot system includes two handling robots each having a hand for gripping a workpiece and a welding robot having a welding torch, a robot controller for controlling the robots, a personal computer with a robot programming device connected to the controller, and a teaching operation panel connected to the controller for teaching each robot.

Title: Robot system

Patent number: JP2007098553

Publication date: 19 April 2007

Applicant: Doshisha

Problem to be solved. To provide a robot system capable of reducing the cost and shortening the time of development and manufacture by combining selectively only the functions required by particular users.

Solution. A plurality of robot constituent elements 1e such as a wheelchair robot 20, an upright assist robot 30, and an arm assist robot 40 to execute solely an independent function are provided previously, and the intended robot system 1 is constructed by combining them according to the functions required by the user. In combining, the robot constituent elements 1e (20, 30, 40) are allowed to exert their respective functions, and also a cooperative operation is made using a centralized control device 60.

Title: Robot controller

Patent number: JP2007130722

Publication date: 31 May 2007

Applicant: Yaskawa Electric Corp

Problem to be solved: to provide a robot controller capable of flexibly corresponding to the change of system specification with an inexpensive cost according to the number of robots performing cooperative control.

Solution: The robot controller is composed of one main controller 1 for controlling one of a plurality of robots, and a plurality of additional units 7a, 7b for controlling other robots, respectively. The main controller 1 is equipped with a CPU3, one 6a of servo drivers, and a connector part 8 transmitting a command of the CPU3. On the other hand, the additional units 7a, 7b are equipped with one 6b of the servo drivers, command cables 5a, 5b connected to the servo drivers, and the connectors 8a, 8b which are connected to the command cables 5a, 5b, and connected to the connector parts 8 and the connector of the other additional units, respectively.