Proposal of an obstacle detector with sound response for the visually impaired

Aiming at the difficulty that the visually impaired have to move autonomously in different places, a system was developed to aid their locomotion so that the user receives a response regarding the environment where he is, with adequate response time to avoid collisions and with easy learning and understanding signs. An array of ultrasonic sensors was used to translate detected obstacles into sound responses, simulating the existence of an audio...