A Smart Cane to Help the Blind People Walk Confidently

Abstract

With the rise of the population of blind people in the world, it’s necessary to design a more useful cane for them to get the way. Cane is a tool that can serve as the third leg of the old people and the handicapped. With the help of our system, it also can used to sense the enviroment for the blind people, serving as the third eye. The cane that we design can detect the obstacle barriers and holes, and the other function is to remind blind people of walking in the blind sidewalk. We produce the cane with different alert sounds on the basis of the distance between the obstacles and the depth of the holes. The distance of the obstacles that we consider is from 200 cm to 2 cm. And the depth of the hole is from 50 cm to 10 cm. Depending on the distance to the obstacles and the depth of the holes, the buzzers emits a warning sound of different frequencies, thus we could remind the people of noticing the obstacles and holes. What’s more, it can direct the blind people to walk down the blind sidewalk with the speech prompt module.