Intelligent Path-Finder for The Blind

Abstract

Eyesight is one of the most useful living organism, but visually impaired people do not realize that sense. They are unable to see the beauty of nature. Not all the problems of the visually impaired people can be solved but with the help of modern technology life can be made easier for them. This project, "Intelligent Path-Finder" tends to make life easier and less problematic. Visually impaired people use general stick for their movement but the sticks are not capable of detecting the obstacles or other objects in front of them automatically; as a result, they need to poke the obstacles to get an understanding of it. To overcome these problems, the "Intelligent Path-Finder" is a remarkable device which can detect various types of obstacles from knee level to ground level, for example liquid, uneven surfaces, etc. In the dark, a special feature is used to prevent accidents with the help of a glowing led light which is triggered by sensing absence of light in the environment, this light can protect the user from moving vehicles and other difficulties by drawing normal people’s attention towards it. If the user is in trouble, he can send his location by pressing an emergency switch. His family can also know the device’s location via SMS. This device consists of a microcontroller, ultrasonic sensor, light dependent resistor, etc. The combination of all these equipment together makes this device relatively accurate, user-friendly, robust and cheap. The device is not a third eye for the blind but it is significantly helpful to them by making their daily lives much easier.