Abstract
The aim of this project is to make a low cost, multi-modal control and an easy to operate a smart wheelchair. To meet the user-specific needs we have implemented a prototype for a smart wheelchair having two major features: (1) Android based application which includes touch-enabled buttons, gesture recognition, voice recognition, and (2) Remote OS installation mechanism. The proposed system is capable of obstacle detection with object detection using Ultrasonic Sensor with real-time object distance, and slope detection using three-axis accelerometer. The accuracy of our system is 91.58% for slope detection as calculated by the 3-axis accelerometer on a variety of slopes and 85.85% for obstacle detection for a variety of obstacles as detected by the ultrasonic sensor. Also, it can send an SOS message which is a notable feature of this project. All these features are controlled wirelessly using Bluetooth on an Android-based application.
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