摘要随着汽车数量的不断增加,城市交通变得越来越拥挤,导致倒车事故不断增加,从而给乘车的人带来安全隐患。因此,有必要研究更加精确和稳定的超声波倒车雷达。本文通过对超声波测距原理的深入研究,依据平时生活中倒车时遇到的实际问题,从而提出了整个系统的总体设计。64183
本文提出了超声波汽车雷达的硬件与软件设计。硬件部分中,是以STC12C5A60S2单片机作为核心,设计了超声波发送模块,接收模块与LCD显示模块。在超声波发送模块中,主要分为三个组成部分,分别是波形产生电路、功率放大电路和发射控制电路。子啊超声波接收模块中,使用MC33202D集成运算放大器实现放大电路,使用音频译码器LM567CN实现选频电路。软件部分中,本文将整个系统,分为了三个大模块,分别是:主程序模块,超声波测距模块,LCD显示模块。最后使用Protel软件制作了PCB图。
毕业论文关键词 超声波 测距 雷达
毕业设计说明书(论文)外文摘要
Title Ultrasonic automotive radar research
Abstract
With the increasing number of cars, urban transport has become more and more crowded, leading to increasing reversing accidents, giving rides bring security risks. Therefore, it is necessary to study more accurate and stable ultrasonic reversing radar. Based on in-depth study of ultrasonic distance measurement principle, according to normal life, the practical problems encountered when reversing, which made the overall design of the entire system.
In this paper, an ultrasonic automotive radar hardware and software design. Hardware section, is STC12C5A60S2 microcontroller as the core, the design of ultrasonic transmitter module, receiver module with LCD display module. In the ultrasonic transmission module, pided into three components, namely, the waveform generation circuit, a power amplification circuit and the emission control circuit. Sub-ah ultrasonic receiver module, use MC33202D integrated operational amplifier amplifier circuit, use the audio decoder LM567CN achieve selective circuit. Software part, the paper the whole system is pided into three major modules, namely: the main program module, ultrasonic ranging module, LCD display module. Finally use Protel software to make a PCB.
Keywords Ultrasonic Ranging Radar
1 绪论 1
1.1超声波汽车雷达的研究意义 1
1.2汽车倒车雷达的发展历史 1
1.3本课题研究的意义 2
1.4本文的主要研究内容和章节安排 2
2 超声波理论基础 4
2.1超声波技术 4
2.2超声波传感器 6
3 系统总体方案设计 9
3.1系统主要技术指标 9
3.2系统的主要参数 9
3.3系统总体设计方案 10
4 硬件系统设计 12
4.1 STC12C5A60S2单片机简介 15
4.2晶振电路 16
4.3超声波发射电路 16
4.4 超声波接收电路 17
4.5 LCD显示电路 18
5 系统的软件设计 19
5.1系统的软件规划 STC12C5A60S2单片机超声波汽车雷达研究+PCB电路图:http://www.751com.cn/tongxin/lunwen_71169.html