MEMS based Hand Gesture Wheel Chair Movement Control with Emergency Alert

Abstract

The objective of this project is to develop a control on wheel chair which helps to the physically disabled persons using their hand movement or their hand gesture recognition through MEMS technology. In this article a fully committed wheel chair to the biomedical sector with its smart features is presented. This wheel chair is useful for disabled persons who are having various ailments which makes them disable or immovable. Persons with different symptom combination can get benefit out of it at different level. Some wheel chair users find difficult or impossible to operate manual or powered wheel chairs. This multi-control smart wheel chair incorporates smart features like obstacle detection, voice control, temperature monitoring and heart rate monitoring. In this research, it is not only monitoring the patient but also to send the emergency alert to the predefined destination. The smart wheel chair control unit consists of integration of AVR microcontroller SST89C52 with MEMS module, GSM module SIM900, ultrasonic and infrared sensors, temperature sensor LM35 and motor driving circuit for controlling motor’s speed.