A Cost-Effective Multisensor Based Framework to Assist Visually Disable Person

Abstract

Many of the people around us are visually impaired by born or by accident. Life-leading like normal people is the daydream to these unlucky people. This paper proposes a system, which can be a helping hand to these visually disable persons. The experiment is done with a cane decorated with our self-made Arduino UNO, Ultrasonic Sonar sensor, Passive Infrared sensor (PIR sensor), Infrared sensor (IR sensor), SD card, vibrator, buzzer etc. This system can measure the distance of any movable or static object and velocity of any movable object, identify pothole in front of the user and notify them. The total process is done in 3 different environments and for each of the environment 2 visually impaired people are used. The average accuracy for distance and velocity measurement by ultrasonic sonar sensors is 94.45% and 89.097% respectively. The average pothole detection accuracy is 90.28%. The framework is very affordable to make as the cost is $ 11 and easy to use in real life.