Abstract
In order to help the activities of physically weak persons, this paper proposes a new concept of a lower-limb power-assist exoskeleton robot. The proposed power-assist exoskeleton robot assists not only the motion of the user using EMG signals but also the perception of the user using an ultra sonic sensor. Consequently, the power-assist exoskeleton robot can modify the assisting user's motion based on the environment information obtained by the ultra sonic sensor. The effectiveness of the proposed concept has been evaluated by performing experiment.
