The end effector 10 includes a joint section 11 connected to a robotic arm 220, a working section 14 for performing work on an object 500, an actuator 40 is located between the joint section 11 and the working section 14 and moves the working section 14 in a first direction in which the joint section 11 and the working section 14 are aligned, a piezoelectric element 45 that drives an actuator 40.

A system includes: a connector including a first connector part connected to a first device and a second connector part being attachable and detachable with respect to the first connector part and being connected to a second device; and a detachment switch provided for the connector and operated when the second connector part is disconnected from the first connector part. The first device is configured to be triggered to perform a predetermined process when the detachment switch is operated while the second connector part remains joined to the first connector part.

A system includes: a connector including a first connector part connected to a first device and a second connector part being attachable and detachable with respect to the first connector part and being connected to a second device; and a detachment switch provided for the connector and operated when the second connector part is disconnected from the first connector part. The first device is configured to be triggered to perform a predetermined process when the detachment switch is operated while the second connector part remains joined to the first connector part.

A battery management system having capability for addressing and time-division communication, the battery management system comprises a controller and a plurality of sensors, the sensors can communicatively connect to the controller; wherein each sensor has a communication port, the controller can transmit a plurality of addressing commands to address each of the sensors, each of the sensors can control the communication period of each communication port in accordance with its received addressing command, therefore the sensors and the controller can execute the time-division communication.

A battery management system having capability for addressing and time-division communication, the battery management system comprises a controller and a plurality of sensors, the sensors can communicatively connect to the controller; wherein each sensor has a communication port, the controller can transmit a plurality of addressing commands to address each of the sensors, each of the sensors can control the communication period of each communication port in accordance with its received addressing command, therefore the sensors and the controller can execute the time-division communication.