An auto-navigating wheelchair system using voice commands.

Abstract

Normally physically disabled people and those who have lost their legs by any accidents or due to malnutrition have a special innovation, wheel chair to give them the pleasure of moving with ease. The idea of wheel chairs that the innovators have come up with mostly involves the handling of the equipment physically with their hands. But this is difficult or impossible for the patients who have lost their hands or aged. With the aim of providing these people an enhanced pleasure of handling the equipment with comfort, the idea of voice controlled wheel chair has been chosen and studied upon. This model uses Arduino and voice recognition module which recognizes the word from the user and matches with the predefined instruction in the system and the sensor attached to the design checks for any obstacles including pits and then directs the wheel chair to act accordingly. A voice controlled wheelchair can provide easy access for physical disabled person who cannot control their movements especially the hands. Once the voice recognition system recognizes the voice commands in comparison to the prestored memory, the respective coded digital signals would be sent to Processor which then controls the wheelchair accordingly. The system is divided into two main components: speech recognition module with voice Recognition module sensor and wheelchair control unit. Handicapped people do not have soft motion of hands and legs, it is therefore not easy to control different turns of the wheelchair manually. To remove this problem moment of wheelchair is controlled by voice. So by giving simple voice command turns wheelchair to different directions depending on the voice command given to it.