Patent classifications
G05B2219/39182
COMMAND VALUE CORRECTION DEVICE AND ROBOT SYSTEM
Provided is a command value correction device that can reduce positioning error for a robot. A command value correction device according to one embodiment of the present invention corrects a command value for directing the orientation of a articulated robot that positions a tip end of an arm that has a plurality of joints, the device comprising: a robot model setting unit that sets a robot model that represents the articulated robot with an elastically deformable model; a support model setting unit that sets a support model that represents a support, to which the articulated robot is secured, with an elastically deformable model; a force calculation unit that calculates a force that acts on the support by the weight of the articulated robot if the orientation of the articulated robot follows the command value prior to correction; and a correction unit that corrects the command value so as to cancel out elastic deformation of the support model due to the force calculated by the force calculation unit.
MANIPULATOR CONTROLLER, MANIPULATOR CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING MANIPULATOR CONTROL PROGRAM
A manipulator controller according to one or more embodiments may include a tilt angle obtainer that obtains a tilt angle of a movable unit receiving a robot relative to a reference surface, a target position obtainer that obtains a target position of the robot on the movable unit having no tilt to the reference surface, a correction unit that corrects, based on the tilt angle obtained by the tilt angle obtainer and the target position obtained by the target position obtainer, the target position to a corrected target position in accordance with the tilt angle, and a control unit that controls an operation of the robot based on the corrected target position.
Determining An Orientation Of A Robot Relative To The Direction Of Gravity
A method for determining an orientation or installation of a robot relative to a direction of gravity for at least one installation location of the robot, and for horizontal alignment or alignment relative to the direction of gravity of a robot includes creating a model wherein joint forces are identified in at least one calibration pose. The robot is then into a new installation location and the joint forces of the robot are identified in at least one measuring pose. Based on the identified joint forces and the model of the robot, the orientation, i.e. the orientation or the installation, of the robot relative to the direction of gravity is determined. The orientation of the robot is corrected by tilting the robot base such that the identified joint forces do not deviate from the forces defined in the model.
Control device for mobile robot
A control device 40 for a mobile robot 1 converts a moment manipulated variable _dmd determined in accordance with a deviation between a desired value and an observed value of a predetermined state quantity of the mobile robot 1 to a rotation manipulated variable by which contacting portions 13, 23 of a plurality of movable links 3, 4 to be brought into contact with an external object are to be rotated about a desired ZMP, and corrects a desired position/posture of each contacting portion 13, 23 to a position/posture rotated about the desired ZMP by the rotation manipulated variable .
METHOD FOR COMPENSATING FOR POSITIONING INACCURACIES OF A LINEAR ROBOT, AND LINEAR ROBOT
The invention relates to a method for compensating for positioning inaccuracies of a linear robot, which has a supporting and guiding structure having at least one a support rail with at least one linear guide and a carriage which can be moved on this rail by means of a motor, using a mathematical model of the supporting and guiding structure, which calculates geometric changes to the supporting and guiding structure on the basis of one or more parameters.
CONTROL DEVICE FOR MOBILE ROBOT
A control device 40 for a mobile robot 1 converts a moment manipulated variable _dmd determined in accordance with a deviation between a desired value and an observed value of a predetermined state quantity of the mobile robot 1 to a rotation manipulated variable by which contacting portions 13, 23 of a plurality of movable links 3, 4 to be brought into contact with an external object are to be rotated about a desired ZMP, and corrects a desired position/posture of each contacting portion 13, 23 to a position/posture rotated about the desired ZMP by the rotation manipulated variable .
Control device for mobile robot
A control device for a mobile robot capable of stabilizing the posture of the mobile robot while in motion is provided. A control unit (26) for a mobile robot (1) includes a required total floor reaction force central point position calculating unit which calculates a required total floor reaction force central point position (Pzmp(1) to Pzmp(7)) as a position of a total floor reaction force central point by using, as a factor, a first total floor reaction force center reference position (SP(1) to SP(7)) which is defined on the basis of a current time's supporting region (Sd1 to Sd7), i.e. a smallest convex region including ground contact surfaces of current time's supporting limbs, and a next time's supporting region (Sd2 to Sd8), i.e. a smallest convex region including ground contact surfaces of next time's supporting limbs.