文档介绍：摘要 2
Abstract 3
1绪论 4
引言 4
4
5
报警系统原理框图 5
第2章单片机原理介绍 7
单片机发展概况 7
MCS-51单片机内部结构 7
第3章传感器检测系统原理介绍 12
13
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第4章系统硬件设计 17
17
18
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第5章软件设计 21
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结论 24
参考文献 25
致谢 26
附录1主电路 27
附录2发射电路 28
附录3 程序 29
摘要
汽车成为很多人不可缺少的交通工具,现在汽车被盗的现象很多,盗贼的手法也层出不穷。为对付不断升级的盗车手段,人们研制出各种方式、各种结构的防盗器,但汽车被盗还是非常严重。基于此现象,本次设计了遥控汽车报警系统。本文主要介绍以单片微机8051为核心设计的遥控汽车报警系统。该系统主要无线控制电路、主动红外传感器、单片机以及温度传感器、报警电路。本系统通过无线控制监控系统启动、利用红外线传感器检测,然后把信号输入到单片机,单片机根据检测电路输出的信号判断是否启动报警,同时采用温度传感器检测发动机温度,从而判读汽车是否被启动,实现系统的报警功能。
关键词:8051单片机;红外传感器;18B20;无线发射和接收
Abstract
As the society progresses unremittingly with the development of science, technique and economy continuously, the lives of people get a very great exaltation. The protective consciousness of private possession is in the continuous to build up, as a result, put forward a new request towards the guarding measurement. Now the Household-use thief-guarding system has e essential equipment for building a house. For satisfying a modern residential demand, we design this remote control thief-guarding system. This text mainly introduces a thief-guarding system which is based on the single chip puter system is mainly constituted by a remote infrared blaster, an infrared receiver which is controlled by single chip puter 8051,hot-electric infrared sensor P228, detective circuit, alarm circuit and electric switch circuit. Since this system adopt double-check mode to monitoring and discriminating the indoor circumstance, two circuits of sensors will output tow types of signals .The logic “and” will discriminate that there is a thief or not, and then input the signal to the 8051 can make the decision whether to trigger the alarm circuit based on the signal which is output by the monitoring circuit, so it can prevent false alarms. The system will dial the police on time once a