基于单片机的汽车倒车系统设计.doc
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1、基于单片机的汽车倒车系统设计(超声测距报警)(任务书,开题报告,中期报告,毕业论文,33000字,程序代码)摘 要随着社会经济的发展和交通运输业日益兴旺,汽车的数量在大幅攀升。越来越多的人拥有了自己的汽车,同时由泊车和倒车所引发的事故也越来越多。针对这种情况,设计一种响应快,可靠性高且较为经济的汽车防撞预警系统势在必行。因此,有助于驾驶员泊车和倒车的倒车报警器应运而生。本文详细介绍了一种基于单片机的脉冲反射式超声测距报警系统。本设计主要以AT89S52单片机芯片为核心,利用超声波的特点和优势,将超声波测距系统和AT89S52单片机结合于一体,显示超声波测距的设计方法。阐述了超声波传感器的原理及
2、特性,整个电路采用模块化设计,由主程序、预置子程序、发射子程序、接收子程序、显示子程序、报警子程序等模块组成。论文介绍了系统的主要软件结构,通过编写程序来实现系统功能。硬件电路包括滤波电路、放大电路和整形电路。最后,分析影响系统的因素和通过对系统的误差分析,给出了系统的改进方案。这套系统软硬件设计合理、抗干扰能力强、实时性良好,经过系统扩展和升级,可以实现汽车倒车报警。 资料来源:56DOC.COM 毕业设计(论文)网关键字:单片机,超声波传感器,测距,汽车倒车系统,报警ABSTRACTWith the development of social economy and transportat
3、ion industry is booming, the number of cars in greatly increased. More and more people have their own cars, the accidents caused by parking and reversing had increased at the same time. In view of this situation, design a kind of fast response, high reliability and cheaper the automotive anti-collis
4、ion warning system is imperative. Therefore, help drivers parking and of reversing the reverse alarm arises at the historic moment. This paper introduces a kind of based on microcontroller pulse reflecting type ultrasonic ranging measuring alarm system. This design mainly AT89S52 microcontroller cor
5、e, using ultrasonic sensors for the features and advantages of the ultrasonic ranging system, combining the ultrasonic ranging system AT89S52 microcontroller, display ultrasonic ranging design method. Expounds the principle and characteristics of ultrasonic sensor, the entire circuit USES modular de
6、sign, the main program, preset subroutines, launch subroutines, receiving subroutines, display subroutines, alarm subroutines etc module. This paper introduces the main software structure, system by writing a program to achieve system function. Hardware circuit including filter circuit, amplifying c
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