基于单片机实现汽车报警器电路的设计

毕业设计(论文)

课题名称基于单片机实现汽车报警器电路的设计学生姓名刘景东

学号0741227256

系、年级专业电气工程系、07电气工程及其自动化指导教师

职称

2011 年5月22 日

摘要

本文重点讨论了应用单片机技术对防盗报警器电路进行可靠性设计及分析的方法。文章首先进行了系统的任务描述及分析，建立了可靠性模型，再进行设计方案的比较与确定，接着设计硬件电路与软件电路，最后在proteus软件中仿真、运行构造出的系统。

本论文设计了一个基于单片机的多路无线防盗报警器系统。该系统是将信号处理器，传感器，无线传输模块，报警电路，显示电路集成到一个很小的系统中，是能实现信号检测，信号处理，信号传输的无线防盗系统。此系统用到无线发射和接收模块，将接收到的信号经过解码芯片的处理后传送给单片机，由单片机进行处理后，传输给报警显示电路。硬件部分首先建立了可靠性模型，论证了系统方案，根据设计要求比较并确定设计方案，再分别设计出振荡电路、复位电路、显示电路、报警电路等各个分模块，最后列出了具体的参数计算过程。软件部分重点列出了程序的总体设计框图和系统流程图，方便读者迅速明了本设计的设计思路和流程。再进行了调试和方针，论证了系统的可靠性。本系统用于检测报警，能同时检测多个点，当检测到一个或多个点有报警信号时，传送给单片机一个低电平，单片机再输出高电平，使发光二极管和扬声器工作报警并显示出报警原因及地点，最终实现多路智能报警控制。

关键词：单片机；无线防盗报警器；传感器；显示电路；报警控制

Abstract

This article focuses on the reliability of application of single chip design and analysis software burglar alarm circuit reliability design analysis, the first task of a systematic description of the reliability requirements are listed and described proteus structure and system software, the next focus of the the basic system reliability prediction, reliability prediction and optimization of mission profile improvement.

According to the present people's needs and market needs, I designed a microcontroller-based multi-channel wireless burglar alarm system. The system is the signal processor, sensors, wireless transmission module, the alarm circuitry in a small system, to achieve signal detection, signal processing, signal transmission of the new generation of automatic intelligent wireless alarm systems. This system uses the wireless transmitter and receiver module, the received signal is processed through the decoder chip sent to the microcontroller, the microcontroller processing, transmission to the alarm display circuit and a series of actions. Main control module: the sensor is passed through the sensor body, and the formation of high-low transition of the output to the microcontroller for processing, and ultimately determine the signal, delay, display, alarm and other functions. The system for the detection of alarm, can simultaneously detect multiple points, when detected one or more points have the alarm signal, can sound the alarm and LED display location, to achieve the intelligent alarm control.

Keywords: SCM; wireless burglar alarm; sensor; display circuit; alarm

目录

摘要 (Ⅰ)

Abstract (Ⅱ)

1课题分析及研究意义 (1)

1.1研究背景 (1)

1.2论文研究的目的与意义 (3)

2系统硬件设计 (5)

2.1系统方案及设计要求 (5)

2.2系统设计方案比较与确定 (6)

2.3 系统分析与硬件设计 (7)

2.3.1 传感器电路原理与应用 (7)

2.3.2 振荡电路 (9)

2.3.3 复位电路 (10)

2.3.4 显示电路设计 (11)

2.3.5 报警电路设计 (13)

2.3.6 控制系统的可靠性设计 (13)

2.4 器件介绍与参数计算 (14)

3系统软件的设计 (17)

3.1程序的总体设计思路 (17)

3.2程序流程图 (17)

4调试与仿真 (20)

4.1 proteus程序的编译和下载 (20)

4.2仿真图形 (20)

5结论和总结 (24)

参考文献 (25)

致谢 (26)

附元器件清单 (27)

附程序清单 (30)