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This paper develops a new functional voice activated wheelchair. Our system has two major functions. The first function is the collision avoidance function that the wheelchair avoids the wall and obstacle without voice command by using the sensor information. This function has three autonomous movements of the stop movement, avoidance movement and deceleration movement. The second function is the robust elevator entry/exit function which can work smoothly in a variety of situations. Various experiments were carried out and evaluate the proposed system with several conditions. As the result, our system ran indoor environment safely. Furthermore, our system was possible to entry/exit the elevator, and move between floors.
Date of Conference: Sept. 27 2009-Oct. 2 2009