Safety Guard For Blind

Abstract

This project is developed for blind peoples to find out the obstacles in front of them by using radar technique. The main modules in this project are Infrared transmitter, Infrared receiver, Microcontroller unit and audio section. An Infrared signal is produced by using the electronic circuit. The Infrared produced is transmitted along a particular direction. The Infrared signal travels and falls on the Obstacles and reflected back. In the electronic circuit, there is an Infrared receiver. The reflected Infrared signal can be received through the receiver. The microcontroller counts the time taken between the transmission and the reception and thus calculates the distance. If there are obstacles in front of them, it produces a warning signal. Thus the user can easily identify the obstacles in front of him. This project is very useful for blinds.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM