导盲器的设计(8 页)Good is good, but better carries it
精益求精,善益求善
Design of ultrasonic wave guide device Abstract: This article recommends a device of ultrasonic wave guide which is designed to adopt AT89C51 single-chip microprocessor computer as controller and apply the principle of ultrasonic distance measuring
The device can detect the distance between the blind and an obstruction in the road ahead and convert the message to a sound reminder
According to frequency variation of the reminding sound, it will enable the blind to judge whether there is an obstruction and the distance from the obstruction then accomplish the purpose of guiding the blind
Key words: Ultrasonic wave ;Single-chip microprocessor ; Guiding the blind摘 要:采纳 AT89C51 单片机作为控制器,利用超声测距的原理,设计了一种超声波导盲装置
该装置可以对盲人前面道路上的障碍物进行距离探测并把障碍