Microcontroller Based Obstacle Detection Device Using Voice Signal for the Visually Impaired
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 5
Abstract
This paper aims in helping the visually impaired people through an electronic aid, which senses any obstacle in the path and alarms the user of the obstacle. The device uses a simple principle of transmitting an ultrasonic signal in the path generated by a wave generator. The signal gets reflected by the obstacle (if any) in the path. The reflected signal is sensed by a sensor and produces a sound signal in the form of voice. This voice signal directs the visually impaired person to identify the obstacles in front of them.
Authors and Affiliations
E. Shobhana
Keywords
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