基于单片机的胎压监测系统的硬件设计.doc

安徽工程大学机电学院毕业设计（论文） 基于单片机的胎压监测系统的硬件设计 摘 要 随着汽车工业的发展和道路交通网络的扩大，同时因此而引起的安全问题在人们生 活中也日益严重，随之引起的交通事故在不断增多。其中由于轮胎的气压引起的比例非 常之高，人们对行驶过程当中的轮胎气压的关注日益密切。汽车胎压监测技术是一种能 切实有效的防止和减少由于轮胎引起的交通事故的方法。 本课题设计的是直接式 TPMS，利用安装在每一个轮胎里的压力传感器来直接测量 轮胎的气压，并通过无线调制发射到安装在驾驶台的监视器上。监视器随时显示各轮胎 气压，驾驶者可以直观地了解各个轮胎的气压状况，当轮胎气压太低、太高或有渗漏时， 系统就会自动报警。 本论文阐述了目前国内外轮胎压力监测系统的研究和发展情况；介绍了目前轮胎压 力监测系统的分类，比较了不同胎压监测系统的优点和缺点；通过分析轮胎压力监测系 统的功能需求，说明轮胎压力监测系统对工作环境和系统技术的要求，设计出一种轮胎 压力监测系统的设计方案；介绍了若干元器件的性能，并且比较它们之间的优点和缺点， 设计出一种基于单片机的胎压监测系统的元器件选用方案；根据设计方案，完成轮胎压 力监测系统采样端和接收端的硬件设计。 关键词：轮胎；压力监测；传感器；采样端；接收端 - I -  陈瑞林：基于单片机的胎压监测系统的硬件设计 The Hardware Design of Tire Pressure Monitoring System Based on MCU Abstract Along with the development of the autombile industry and the extension of the road transportion network , and the safety problem of pelope’s life is caused, and the amout of traffic accidents is increased . The proportion of the traffic accidents caused tire pressure is very high , and this condition makes people concentrate on tire pressure of automoblie .Tire pressure monitoring technique is valid technique which can decrease the amount of traffic accidents caused by tire pressure . This topic design is direct type TPMS, Use installed in every tire pressure in the sensor to measure the pressure of the tire directly,and through wireless modulation launch to installation area in the monitor.monitor tire pressure, At any time shows every driver can directly know each tire pressure condition, when tire pressure is too low, too much or have leakage, the system will automatically alarm. This article analyze explain the domestic and explain the domestic and international ci- rcumstance of research and development on Tire pressure monitoring stytem(TPMS) curren- tly;The futction request of the TPMS is analyzed, and the request of work environment and system technique of the TMPS is explained ,and a TMPS project is given;The classification of the current type TPMS is introduced, and the advantage on var