부산대학교 도서관

Even though technology is improving at an amazing rate, there is still no product on the market that is easy for blind or visually impaired people to use and doesn't cost too much. People who are blind or visually impaired find it hard to do everyday things. If the navigational aid device is linked to the foldable tick, it may help blind or visually impaired people get around and make their job easier. The final product will already have sensors built right in. With these devices, the product will be able to find any nearby objects or people who are trying to get in. Someone will feel a vibration and get a reaction from the device right away if an object or obstacle comes within range of the ultrasonic sensor. This will teach the person in question a lesson. Since the system is small, it is easy to move and set up whenever it is needed. In order to reach this goal, the gadget was designed with a feature that lets the lines roll up when they're not in use. The person who uses the stick will never have any trouble folding it because of this built-in feature. At the very bottom of this thing is a swivel wheel that can be attached to it and turned in any direction—all the way around. Because of the extra benefit, the user doesn't have to lift the stick and tap it on the ground to see what the environment ahead him looks like. Because of this, the amount of work that needs to be done to finish this task is directly decreased. The main goal of this work is to make a blind stick that is both useful and relatively cheap.