Speech controlled automatic wheelchair

摘要

In this paper, we propose an Intelligent Home Navigation System (IHNS) which comprises of a wheelchair, voice module and navigation module. This system can be used by an elderly or physically challenged person to move inside the home without any difficulty. In general, the elders may forget the way to the different rooms in house and the physically challenged people find hard to move the wheel chair without external aid. In the proposed system the wheelchair is operated automatically or manually by turning the wheels using hands or external aids. The proposed system is a voice controlled wheelchair robot. The voice of the person is detected by voice capture module and that compared with predefined voices loaded in the system by voice recognition module. According to the received voice, the destination is automatically understood and the wheelchair moves according to the route which is predefined. The system is also equipped with obstacle avoidance technique, where the person may not be able to provide proper voices at right time. The wheelchair can automatically navigate from one point to other in the home as per command from the voice module.