Car has become more and more people are the indispensable part in life, car theft has become the most common in modern society, the crime on market now one of a variety of automobile guard against theft, alarm system exist to varying degrees misstatement rate is high, anti-theft simple function, and reaction speed slow shortcomings. This topic in designing a new kind of car anti-theft alarm system, this alarm system to STC89C52 single-chip microcomputer control module, adopts mainly in SW - 18015P earthquake sensor, the external vibration signals collected mobile phone GSM call alarm, the acousto-optic alarm, with high performance 70m NRF2401 wireless remote control module implements the remote shut-down alarm system ，implements a reliable, efficient, low-cost car anti-theft alarm system.
Key words: MCU GSM Wireless communication Alarm’ device
目 录
摘 要 I
ABSTRACT II
1 前言 1原文请加优.文^论,文'网QQ3249,114
1.1研究背景 1
1.2研究内容 2
2 系统总体设计 2
2.1方案的选择 2
2.2系统流程框图 3
3 硬件设计与传感器选用 4
3.1主机单元电路 4
3.1.1STC89C52单片机 4
3.1.2 震动传感器电路设计 8
3.1.3声光报警的电路设计 14
3 .2 NRF2401遥控模块 15
3.3配置 NewMsg_RF24L01 模块 18
4 硬件设计 19
4.1遥控发射电路原理 19
4.2 发射电路硬件设计 21
4.3 GSM报警模块 22
4.3.1 TC35I的连机方法 23
4.3.2TC35I与单片机的电路连接 24
5 程序设计 25
5.1主程序设计 25
5.1.1初始化程序和主程序 25
5.1.2中断服务与定时器T1设置程序流程图 27
5.2NRF2401遥控发射程序流程图 28
5.3GSM拨打电话程序流程图 29
5.4停止报警程序 30
6 系统调试与分析 31
6.1硬件焊接 31论文网http://www.youerw.com/
6.2程序调试 32
7 总结 35
参考文献 36
附 录 37
谢 辞 51,2234
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