本科生毕业设计（论文）
无线智能报警系统的设计
学 院： 专 业： 学 号： 学生姓名： 指导教师： （职称）
二〇 年 月
摘 要
本设计主要由红外探测信号编码发射电路、无线接收解码电路、单片机控制电路、数码管显示电路、遥控电路、报警电路和电源电路部分组成。该报警器的实现原理是入侵者的红外热辐射被热释电红外传感器感应到，然后传感器将其转换成超低频信号经电路放大后输出。检测器是利用红外人体检测探头检测预先设定好的范围内的情况，一旦有危险情况便向主机发出信号。主机的主要功能是通过无线接收信号，然后经单片机处理，在数码管上显示出有危险的标志并同时控制喇叭发出警告声音。该报警系统具有误报率较低、安装和配置容易、成本低、能量消耗少、使用方便的特点。可应用于仓库防盗、家居防盗等多种防盗环境，具有良好的市场前景和使用价值。
关键词：单片机；无线；报警；防盗；智能系统
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Intelligent Wireless Burglar Alarm System
GAO Yan-nan Abstract
This design is mainly composed of infrared detection signal encoding transmitting circuit, wireless receiving decoding circuit, single-chip microcomputer control circuit, digital tube display circuit, control circuit, alarm circuit and power circuit. The principle of the alarm is that the i-nfrared thermal radiation of the invaders is inducted by the pyroelectric infrared sensor, and th-en, the sensor convert them to ultra-low frequency signal after amplification circuit and output. Detector is using infrared human detection probe detection of predefined scope, it will send si-gnal to the host when it’s in the dangerous situation. The host's main function is receiving the signal by the wireless, and then a sign of danger is shown on the digital tube and at the sam-e time issued a warning sound after the single chip processing. The alarm system is a low rat-e of false positives, easy installation and configuration, low cost, less energy consumption, eas-y to use features. It can be used in warehouse, anti-theft, home security and other security envi-ronment. Therefore, it gets the good market prospect and using value.
Key Words: Singlechip; Wireless; Alarm; Anti-theft; Intelligent system
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目 录
1.绪论 ...................................................................... 1 1.1课题背景 ............................................................... 1 1.2 无线智能报警器工作的原理 ............................................... 1 1.3 无线红外防盗报警器的分类及其介绍 ....................................... 1 1.3.1主动红外报警器 ..................................................... 1 1.3.2被动红外报警器 ..................................................... 1 1.4设计无线红外防盗报警系统的内容和意义 ................................... 2 2.系统方案论证 .............................................................. 2 2.1 方案比较 ............................................................... 2 2.2 方案选择 ............................................................... 3 2.3 主要器件介绍 ........................................................... 3 2.3.1 315m 无线发射接收模块 .............................................. 3 2.3.2 编码芯片SC2262 .................................................. 4 2.3.3 HC-SR501......................................................... 4 3.硬件电路的设计 ............................................................ 5 3.1 无线红外防盗报警系统的硬件组成 ......................................... 5 3.2 系统硬件结构图及其工作原理 ............................................. 5 3.2.1 遥控器电路......................................................... 5 3.2.2 红外探测无线编码发射电路 ........................................... 6 3.3.3 接收解码主机控制电路 ............................................... 6 3.4多路无线防盗报警器的硬件设计 ........................................... 6 3.4.1 电源设计 .......................................................... 6 3.4.2 发射电路设计....................................................... 7 3.4.3 接收电路设计....................................................... 8 3.4.4 控制、显示电路设计 ................................................. 9 4.软件的设计 ............................................................... 11 4.1程序流程图 ............................................................ 11 4.2 C语言程序设计 ........................................................ 12 4.2.1 控制程序设计 ..................................................... 12 4.2.2 定时器程序设计 .................................................... 13 5.系统调试 ................................................................. 14
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5.1 硬件调试 .............................................................. 14 5.2 软件调试 .............................................................. 14 5.3 系统综合调试 .......................................................... 14 5.4 调试结果 .............................................................. 14 6.结论 ..................................................................... 15 参考文献 ................................................................... 16 致谢 ....................................................................... 17 附录I 元器件清单 ........................................................... 19 附录II系统整体电路图....................................................... 20
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