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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。
A blind-blind system that uses ultrasonic ranging and velocity measurement to convert distance signals to slider positions and to convert velocity signals to tones is presented. Mainly used to help blind people identify the distance and speed of movement, so as to help blind effect. The system has practicality, simple structure, low price advantage.