汽车防盗报警器的设计_毕业设计(论文).doc

汽车防盗报警器的设计
摘要
随着汽车数量增多,盗窃汽车的犯罪案件与日俱增,且车辆被盗的数量逐年上升,为了防止汽车被盗,给汽车装上防盗报警系统实有必要。对此提出了一种汽车防盗报警器的设计方案。
本论文介绍了一种制作容易、性价比高、实用性强的防盗报警器。在本设计中,用红外遥控器控制报警系统电源的通断,避免车主进入室内产生误报警;采用现在普遍应用于报警器中的热释电红外线传感器进行盗情信号的检测;用当今最流行的AT89C2051单片机控制,体积小、成本低。此报警器处于警戒状态下,发生盗窃时,传感器将检测到的信号送到单片机,经单片机分析处理产生声光报警,并且切断汽车点火线圈电源使汽车无法启动。
关键字:红外遥控、热释电红外传感器、AT89C2051单片机、声光报警
The Design Of Car Warning System Guarding Against Theft
Abstract: As the quantity of personal automobile increases, cases of stealing cars rise day by day, causing the lost of automobile goes right toward the peak, to prevent the vehicles from being taken robbed, an anti-theft system including alarming module is absolutely necessary for every single automobile. Therefore a new scheme of anti-theft and warning system for vehicles is announced.
In this thesis, an anti-theft alarm system with features of high performance-to-price ratio, much easier manufacture procedure and great practical usages is introduced. In this design, inferred remote controller is in charge of control alarm system power source supply, to avoid the car owner triggers the warning by mistake. In sensing module, the pyroelectric inferred sensor is selected for detecting signals of stealing; And the most popular microcontroller AT89C2051 which has small volume and low cost is used. When the whole system is in guarding status, and stealing behavior has been detected, sensing module will send the detected signal to the microcontroller. After processing by the microcontroller, sound and light warning will be activated. And the vehicle will not be fired anyway because the automobile ignition coil power source will be cut off at the same time.

Keyword: Inferred Remote Control, Pyroelectric Inferred Sensor, Microcontroller AT89C2051, Sound And Light Alarm
目录
第1章前言 1
选题背景 1
1
本论文的主要工作 2
第2章汽车防盗报警器的总体方案设计 3
方案设计要求 3
3
第3章汽车防盗报警系器的硬件设计 4
红外遥控发射器 4
振荡器 4
红外遥控发射器的原理图 5
防盗报警系统的电源电路 6
红外遥控接收及控制电路 7