의복형 장애물 감지시스템이 시각장애인의 보행능력에 미치는 영향

Abstract

This paper examined the influence of a wearable obstacle guide system to the blind's walking ability. The wearable obstacle guide system which has an obstacle detecting device with ultrasonic sensor was designed to inform the obstacle location information with tactile stimulation with two small vibration motors. To evaluate the efficacy of the system, some walking experiments were carried out. Three blind students were participated in the experiments and they had trained for two weeks to be adapted the system. In the experiments, the walking velocities, landmark utilizing numbers and the obstacle avoid rates of each student were investigated with the system. To compare and analyze the results, we have measured each factors with a white cane and both devices. The results showed that the wearable obstacle guide system is used with the white cane together, the blind's walking velocity and obstacle avoid rates were improved. Which proves the designed wearable obstacle guide system can give some help to the blind's walking ability.