Abstract
In this paper, we propose a wTouch interface for controlling a human-centered intelligent wheelchair. The wTouch interface is a touch panel which performs similar joystick manipulations while it provides convenient wheelchair control interface, as well as offers useful wheelchair status. In addition, reactive navigation techniques are also developed by combining with the obstacle information to perform collision free navigations. The obstacle detection sensor uses a laser range finder and the reactive navigation uses the artificial potential field approach. Finally, a wTouch wheelchair prototype is produced in our laboratory for evaluating the performance of reactive navigations.
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