Improvement of Walking Support System for Visually Impaired Person

In our laboratory, we have developed an obstacle detection system using the smartphone for a visually impaired person. But it was the system that depended on the height information of smartphone. So this system lacked practicality. In this study, we installed an ultrasonic sensor and 6-axis sensor in the white walking stick, and built a system which doesn’t depend on the height information of the smartphone. As a result, by using the fabricated system, we found it possible to detect the static obstacle such as walls, stairs and other obstacles which prevent visually impaired persons from walking. And we have improved the system so that it can be compatible with the touch-technic done by the visually impaired parson in walking.