Smart Walking Stick for Blind People

Abstract

Human beings are having five basic senses: touch, sight, hearing, smell, and taste. When an object comes in contact with any sensing organ an information signal is sent to the brain. The brain processes the signal and helps us to understand and perceive our surroundings. Sight is very important of the five senses. Low vision or blindness has a long lasting effect on all aspects of an individual’s life. Visually impaired person find it difficult detecting obstacles in front of them, during walking within the road, which makes it dangerous. The smart stick is a proposed solution to help enable them to identify the world around. In this paper we propose an answer, represented during a smart persist with infrared sensor to detect stair-cases and pair of ultrasonic sensors to detect the other obstacles in front of the user. Moreover, a sensor at the bottom of the stick is provided for the sake of avoiding puddles. The smart stick will be of low cost, fast response, low power consumption and light weight.