基于单片机带有汉字显示及语音播报超声波测距系统设计.doc

摘 要 测量作为各领域一个重要的工具，有着悠久的历史。在我国，早在秦始皇时期就已经统一了度量衡，推行“一法度衡量丈尺，车同轨，书同文字”，并制定了一套严格的管理制度。同样，测量的方法及使用的仪器也有着纷繁复杂的选择，比如有游标式测量仪器，机械式测量仪器，电学式测量仪器等。随着科学技术的发展，超声波测量法在众多测量方法中脱颖而出，由于超声波具有方向性好，穿透性强，尤其是在光不透明的固体中，它碰到杂质或分界面就有显著的反射等优点，超声波测距在测量中的应用越来越广泛，笔者设计的是一个多功能的带有汉字显示及语音播报的超声波测距系统。 本文系统介绍了一种基于单片机CC2530的带有汉字显示及语音播报的超声波测距系统。整个电路采用模块化设计，硬件部分由超声波测距模块、模块、温度传感器模块、语音播报模块、LCD显示模块ABSTRACT As a significant tool in various fields, measuring has a long history. In China, it can date back to the period of Qin Shi Huang, who standardized the system of weights and measures, promoted “Apply the same system of measuring methods and tools, the same road width and the same written language”, and also formulated a set of strict management system. Similarly, measuring methods and equipment also have a complicated choice, such as vernier measuring equipment, mechanical measuring equipment and electrical measuring equipment etc. With the development of science and technology, the ultrasonic measurement method has stood out from numerous measuring methods. As it has the advantages of good direction and strong penetrability, especially in the opaque objects, it can reflect when it encounter impurity or interface. The application of ultrasonic distance measurement in measuring becomes increasingly extensive in measuring. The author has designed a multifunctional ultrasonic distance measurement system with Chinese display and voice broadcast. This paper systematically introduces an ultrasonic distance measurement system with Chinese display and voice broadcast based on CC2530 single chip microcomputer. The whole circuit adopts modular design; the hardware part consists of ultrasonic ranging module, single chip microcomputer module, temperature sensing module, voice broadcasting module and LCD displaying module; the software part consists of distance measurement and wireless transmitting module as well as voice broadcasting and displaying module. This paper presents the detailed design scheme of software an