摘 要本文介绍了一款基于 51 单片机为核心的语音导盲系统的设计方案。系统由两部分组成：一时超声眼镜探测器，二是语音提醒器。探测器主要根据超声猎取数据，经单片机处理后由无线模块发送出去。语音提醒器有单片机控制，接收数据，然后驱动语音芯片提醒。该系统具有成本低廉、使用方便等优点，是一款通用性较强的理想导盲设备。讨论了一种基于嵌入式体统和超声波测距系统的设计方案，应用移植嵌入式操作系统并给出障碍物检测优化方法，并且根据超声波测距的工作原理对障碍物进行距离测量。实验结果表明，该系统在自然盲道情况下达到了处理实时性和推断的准确性要求，可较好地服务与盲人的独立出行。关键词：51 单片机 语音提醒 超声测距 无线数传模块 导盲系统；AbstractThis page mainly introduce a design of voice guide device based on 51 MCU .The device consists of two parts: Part one ——ultrasound glasses detector , Part two —— voice alarm device. Data gotten from ultrasound glasses detector has been put into process by 51 MCU and then be sent into air by wireless module. After that ,the voice alarm device will get the data from another a voice alarm .Cheap, convenience and other advantages make it a perfect device for blind man.Studies are made on the embedded systems and ultrasonic distance measurement system. Porting embedded operating system and giving optimization method for obstacle detection, and measuring the obstacles distance by ultrasonic ranging works. The experimental results she that the system achieved to deal with circumstance and judge accuracy of real-time requirements in a natural blind road, which may provide better serves for the blind’s independent travel.KEY WORD ：51 MCU Voice alarm Ultrasound detector Wireless module Guide system for blind目 录摘 要........................................................................................................................................IAbstract.................................
