Method and robot arm, where the motor torques of the joint motors of a robot arm are controlled based on a static motor torque indicating the motor torque needed to maintain the robot arm in a static posture, where the static motor torque is adjusted in response to a change in posture of the robot arm caused by an external force different from gravity applied to the robot arm. Further the motor torque of the joint motors is controlled based on an additional motor torque obtained based on a force-torque provided to the robot tool flange, where the force-torque is obtained by a force-torque sensor integrated in the tool flange of the robot arm.

A robot balance control method includes: obtaining force information associated with a left foot and a right foot of the robot; calculating a zero moment point of a center of mass (COM) of a body of the robot based on the force information; calculating a first position offset and a second position offset of the robot according to the zero moment point of the COM of the body; updating a position trajectory of the robot according to the first position offset and the second offset to obtain an updated position of the COM of the body; performing inverse kinematics analysis on the updated position of the COM of the body to obtain joint angles of the left leg and the right leg of the robot; and controlling the robot to move according to the joint angles.

An automatic ultrasonic scanning system includes a robotic arm with a camera, an ultrasonic probe mounted at an end of the robotic arm, a six-dimension force sensor, and a host computer. The six-dimension force sensor is fixed at the end of the robotic arm, and the ultrasonic probe is fixed on the six-dimension force sensor via a clamp. The six-dimension force sensor can detect a reactive force generated when the ultrasonic probe is in contact with a body surface of a person. The host computer is connected with each of the six-dimension force sensor, the camera and an image collection card via a data line. A controller of the robotic arm is connected to the host computer via an Ethernet communication bus. The ultrasonic machine is connected to the image collection card via a data line.

It A waste sorting robot (100) comprises a manipulator (101) moveable within a working area (102). A gripper (103) is connected to the manipulator (101) and arranged to selectively grip a waste object (104, 104a, 104b, 104c) in the working area (102). A controller (108) is in communication with a sensor (107) and is configured to receive detected object parameters, and determine a throw trajectory (109) of the gripped waste object (104) towards a target position (106) based on the detected object parameters of the gripped waste object (104). The controller (108) is configured to send control instructions to the gripper (103) and/or manipulator (101) so that the gripper (103) and/or manipulator (101) accelerates the gripped waste object (104) and releases the waste object (104) at a throw position with a throw velocity and throw angle towards the target position (106) so that the waste object (104) is thrown along the determined throw trajectory (109). A related method of controlling a waste robot is also disclosed.

A control device comprising: a processor controls a robot having a robot arm and accept a command from an input unit which enables an input operation; and a storage that stores information about a driving of the robot, wherein the processor carries out first drive control to move a predetermined part of the robot arm or of an end effector connected to the robot arm from a first position toward a second position if the processor accepts a first command to move the predetermined part, and second drive control to move the predetermined part in such a way as to return along at least a part of a route which the predetermined part traces when moving from the first position toward the second position, based on the information stored in the storage, if the processor accepts a second command to retract the predetermined part after the first command.

Systems and methods are provided for an automation system. The systems and methods calculate a motion trajectory of a manipulator and an end-effector. The end-effector is configured to grasp a target object. The motion trajectory defines successive positions of the manipulator and the end-effector along a plurality of via-points toward the target object. The systems and methods further acquire force/torque (F/T) data from an F/T sensor associated with the end-effector, and adjusts the motion trajectory based on the F/T data.

A robot system capable of reliably detecting contact between a robot or a workpiece and an external object. The robot system includes: a robot including a handling part; a handling force-detection part that detects a handling force applied to the handling part; an operation controller that causes the robot to operate in accordance with the handling force; an external force-detection part that detects an external force acting on the robot; and a contact force-calculation part that calculates a contact force by subtracting the handling force from the detected external force.

This control device is provided with a processing unit for calculating a permissible value of an external force that is permissible to be applied on a robot, a workpiece, or a hand. The permissible value of load that can be exerted on a constituent member of the robot is determined in advance. The processing unit calculates a permissible value of an external force in an application direction in which the external force is applied, on the basis of the position and attitude of the robot, the position of an application point where the external force is applied, and the permissible value of load of the constituent member of the robot.

A device for a robot is disclosed. In the device for a robot, a first signal is transmitted from a robot control device to the robot, a second signal is transmitted from the robot control device to the device for a robot, and a third signal is transmitted from the robot control device to the device for a robot, the third signal being transmitted from the robot control device in a case where there is a communication error between the robot control device and the device for a robot so that the device for a robot is restarted via a reset circuit.

This control device includes a force sensor, and a parameter calculation unit for calculating a moving direction for moving a first workpiece, and the position of a workpiece end point when performing force control. An operator causes a robot to bring the workpiece end point of the first workpiece into contact with a corner of a second workpiece. The force sensor detects a force in a period in which the first workpiece is pressed along a pressing direction. The parameter calculation unit calculates the moving direction and the position of the workpiece end point, on the basis of forces detected by the force sensor for a plurality of pressing directions.