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FRIEND II which is the successor of the rehabilitation robot FRIEND I is being developed at the Institute of Automation, University of Bremen, and belongs to the category 'intelligent' wheelchair mounted manipulators. Both systems are used as a personal assistant to support disabled persons with upper-limb impairments in daily life situations as well as in the working environment. Significant improvements are obtained with the use of smart devices, new camera systems, a humanlike robot arm with 7-joint kinematics, a new control concept - kinematic configuration control, force torque sensor and two interchangeable grippers. This paper describes the hardware selection and the innovations in the hardware of the system FRIEND II currently under development.
Volosyak et al. (Tue,) studied this question.