Techniques are described for testing whether an end effector, or component thereof, is correctly or incorrectly installed to a manipulation system. In an example, a manipulation system can include a manipulator arm configured to receive an end effector having a first moveable jaw, a transducer configured to provide first effort information of the end effector as the end effector moves, and a processor configured to provide a command signal to effect a first test move of the first moveable jaw, and to provide an installation status of the of the end effector using the first effort information of the first test move.

A relay failure detection circuit includes a first voltage acquiring section configured to acquire an AC voltage input to a power supply circuit and output the AC voltage as a first voltage signal, a second voltage acquiring section configured to acquire an inter-terminal voltage of a relay provided in the power supply circuit and output the inter-terminal voltage as a second voltage signal, a comparing section configured to compare a waveform of the first voltage signal and a waveform of the second voltage signal, and a determining section configured to determine a failure of the relay according to a result of the comparison.

A ground simulation device and method for an on-orbit manipulation of a space manipulator is provided. The ground simulation device includes: a dual-arm robot, configured to simulate the space manipulator operating a target object; a suspension device, including a fixed post and passive rods, where the passive rods are movably connected with a top end of the fixed post, and the target object is suspended to the passive rods; and a simulation platform, configured to fix the dual-arm robot and the suspension device thereon. The ground simulation device provides the passive rods on the suspension device and suspends the target object to the passive rods, thus overcoming the gravity of the target object. In addition, the passive rods can drive the target object to move under an influence of an external force, achieving a similar suspension effect to that in space, and providing a desired, safe, and reliable implementation effect.

A differential joint device for a robot includes a first shaft extending in a first direction, a second shaft connected to the first shaft and extending in a second direction vertical to the first direction, a first friction wheel rotatably disposed on one side of the first shaft, a second friction wheel rotatably disposed on another side of the first shaft, a third friction wheel rotatably disposed at one end of the second shaft, the third friction wheel being in contact with the first friction wheel and the second friction wheel, a pitch output encoder disposed to detect a rotation angle of the first shaft, a roll output encoder disposed to detect a rotation angle of the third friction wheel, a first driver configured to rotate the first friction wheel, and a second driver configured to rotate the second friction wheel.

A method, system, and apparatus are provided. The method includes receiving, with a coordinator component, a task for testing at least one electronic device, retrieving, by a first agent from the coordinator component, the task for testing the at least one electronic device, controlling a first robotic device to test the at least one electronic device based on the retrieved task, and receiving, with the coordinator component, a result of the task based on the testing of the at least one electronic device.

An articulated robot has an arm, a drive motor for driving and positioning the arm, a gas spring for supporting a load acting on the arm to reduce a load of the drive motor and a control unit for controlling the drive motor. The control unit has a function of estimating a decrease state of a gas sealed inside the gas spring based on an actual current value of the drive motor obtained at a stop position at which the drive motor is operated and stopped in an energized state. The decrease state of the gas sealed inside the gas spring is estimated based on the current value of a servo motor without causing decline in operation rate of the robot.

For kinetic sizing, the dynamic torque to be provided by a robotic system may be based off of, in part, a maximum acceleration. Rather than trying to extract maximum acceleration from many samples, a relationship of velocity to acceleration from repetitive user inputs relative to a non-surgical target in different situations (e.g., accurate, fast, or balance tracing of the target movement) is established. The velocity for any given situation may be used to estimate the acceleration from the relationship. Rather than using many trajectory samples from many users, a synthetic trajectory may be used. The synthetic trajectory may be fit to user data while maintaining high-coverage properties for direction of movement for any given pose of the robot. Alternatively, a virtual trajectory decoupled from time is used. The virtual trajectory samples the directions at any given pose in a global high-coverage manner, without specifically using a time-dependent sequence of poses.

Methods and devices for diagnosing a robot. A method includes obtaining a spectrum of a motion signal generated by a rotating component of the robot during operation of the robot. A frequency amplitude of a sub-component of the rotating component is determined from the spectrum, based on a physical characteristic and a speed of the sub-component. A failure of the sub-component is detected by comparing the frequency amplitude with a threshold amplitude.

A method of performing a fit test on an actuator unit coupled to a user. The method includes actuating the actuator unit; determining a first configuration of the actuator unit generated during the actuating the actuator unit; determining a second configuration of the actuator unit generated during the actuating the actuator unit; determining a change in configuration of the actuator unit based at least in part on the difference between the first and second configuration; and determining that the change in configuration corresponds to an improper fit of the actuator unit to the user.

A life prediction apparatus is configured to accurately predict a life of a cable wired at a joint part of a robot. The life prediction apparatus includes a fatigue-level estimation unit for estimating a fatigue level of the cable based on encoder information of an actuator which moves the joint part of the robot, and a life prediction unit for predicting the life of the cable based on a fatigue level of the cable estimated by the fatigue-level estimation unit and an allowable value of the cable.