SMART WALKING STICK FOR VISUALLY IMPAIRED PEOPLE

Abstract

The smart walking stick based on ultrasonic sensors and Arduino for visually impaired people. There are approximately 37 million people across the globe who are blind according to the World Health Organization. People with visual disabilities are often dependent on external assistance which can be provided by humans, trained dogs, or special electronic devices as support systems for decision making. Thus, we were motivated to develop a smart white cane to overcome these limitations. We accomplished this goal by adding ultrasonic sensors at specific positions to the cane that provided information about the environment to the user by activating the buzzer sound. We proposed low cost and light weight system designed with microcontroller that processes signal and alerts the visually impaired person over any obstacle, water or dark areas through beeping sounds. The system consists of obstacle and moisture detection sensors for receiving, processing and sending signals to the alarm system which finally alerts the user for prompt action. The system was designed, programmed using C language and tested for accuracy and checked by the visually impaired person. Our device can detect obstacles within the distance of about 25cm and 10cm from the user. This paper describes the working of a Blind Stick based on a microcontroller ATmega328 (Arduino Uno). Most monitoring systems that are in use in the present world works in disconnected mode yet our framework is planned with the end goal that a patient can be checked remotely progressively. Shrewd stick for visually impaired man is a machine that can pursue a way. The way can be unmistakable like a dark line on a white surface (or the other way around) or it very well may be undetectable like an attractive field. Detecting a line and moving the robot to remain on course, while always redressing incorrectly moves utilizing criticism component frames a basic yet compelling shut circle framework. As a software engineer you inspire a chance to 'educate' the robot how to pursue the line consequently giving it a human-like property of reacting to improvements.