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Accelerometer And Zigbee Protocol Based Smart Wheel Chair for Physically Disabled People

Approximately 6 million people in the world face the problem of disability due to paralysis of various degrees. Paralysis is caused by impairment of nervous system disabling the people from performing various common functions. This paper provides a wireless system that can be used by disabled people to control the motion of the wheelchair by elementary motion of their hand or head. The system comprises of a Transmitter mounted on operator’s hand; employing a MEMS Accelerometer which transmits control signals to the Receiver. The receiver is mounted on the wheelchair and controls its motion based on control signals. The control signals are transmitted and received wirelessly using Wireless Radio Frequency Module.