Secure Navigation System for Visually Impaired

A cane is commonly used to help blind people navigate on a path. A stick is used to inform them about any pits, obstacles or elevation. This paper presents a secure system which detects any obstacles using an Ultrasonic sensor. GPS-GSM module is used that gives us the location of the person and sends a message alert on the phone of their families on regular intervals. Also, obstacle detection warning is given through a voice command using speaker or headphones. This system is designed to help visually impaired navigate a path safely and without much difficulties. In the present ongoing systems the security and safety of the visually impaired person is not adequately taken care of. So we will be preparing an Electronic Travelling Aid (ETA) with ultrasonic sensor and GPS for increasing the security and safety of the visually impaired person. This system will be more efficient and cost effective as compared to its former systems