Tongue Controlled Wheelchair System with Obstacle Detection

The wheel chair model is designed for shifting the patients. It is used for handicapped person for moving from one place to another place. The wheelchair mobility is controlled different ways one is mechanical force given by manually and other one is electrically controlled wheelchair. Electrically controlled wheelchair operated by remote control. But paralyzed patients does not operates above types of wheelchair. Our project specially invented for paralyzed people. Tongue control wheelchair system is helpful for paralyzed person. In this project wheelchair is controlled by tongue movement of the patient. This system consists of magnetic sensors and a permanent magnet that is fixed in teeth and tongue of the patient. As a result of tongue movement the magnet creates magnetic field the Hall Effect sensor creates the voltage as a result of magnetic field. Also there is depth detection and obstacle detection was done through the infrared sensor and ultrasonic sensor within the wheel chair. The sensor output wirelessly transmitted to the microcontroller and the driver will control the wheelchair movement.