摘要
介绍一种采用超声测距、测速并将距离信号转换为滑块位置,将速度信号转换为音调的助盲系统。主要用于帮助盲人辨别物体的距离与运动速度,从而达到助盲的作用。该系统具有实用性强、结构简单、价格低廉的优势。
This paper introduces an assist system for the blind. It utilizes ultrasonic to measure the distance and speed. Then the distance signal is converted to position of slip block and the speed signal is converted to tone. The main function of this sytem is to assist the blind to determine distance and speed of objects. It is practical, Simple and inexpensive.
出处
《医疗卫生装备》
CAS
2006年第8期13-15,共3页
Chinese Medical Equipment Journal
关键词
超声测距
超声测速
人工视觉
distance measure by ultrasonic
speed measure by ultrasonic
artificial vision