Development of intuitive visual navigation interface for electric wheelchair

In this paper, we develop a new intuitive visual oriented control interface for electric wheelchair instead of conventional joystick interface. The proposed visual-oriented control interface consisting of a head mounted display (HMD) with a two-dimensional acceleration sensor to measure angle based on ground gravity. In order to control the direction and/or speed of the wheelchair, head angle is used as an intuitive driving control interface, which is implemented on a newly developed fuzzy-logic based PSoC microcontroller. By applying fuzzy-logic, smooth and intuitive control can be achieved. The HMD is an intuitive information display with 360-degrees vision and accurate range information.