New developments in electric wheelchairs for disabled persons
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The design for an intelligent wheelchair to assist disabled or elderly people, whilst they are in hospital is presented. The wheelchair is intended for those who are unable to drive a normal powered wheelchair. The design consists of a central navigation unit obtaining information from environment sensors, a positioning unit and a user control unit. The sensors proposed include ultrasonics, odometry, inclinometry, passive radio beacons, infrared range scanner and voice recognition.