毕业设计（论文）-基于51系列单片机的无线报警器.docVIP

[摘要] 本文基于传送AT89C51，本文详细分析了上述实现原理，给出了主要程序，并通过了测试，有较强的实用价值。?51系列单片机，PT2262, PT2272,设防，撤防 [Abstract] Wireless alarm based on the 51 series single chip is introduced in this paper, the transmitting terminal will send out information, which is through coding and decoding. The receiver gets the information, which will be transmitted to Single-chip microcomputer to control the alarm. The design has two modules: wireless transmitting module and wireless receiving alarm module monitored by the single-chip microcomputer .Four buttons in the transmitting module control data information send , the encoding chip PT2262 code information, and then sent to it to launch head first, finally launch head send out information; Receiving module receive information, which is sent to decoding chips PT2272 to be decoded, then which will transfer information to the single chip- microcomputer AT89C51 , finally causing alarm bell ringing. Besides, this system also add the fortification function and removal function that deal with wireless alarm failure of power cuts. The operation principle is analyzed in the paper. The main part of the program is given, and pass the test. This device has a strong practical value. [Key words] 51 series MCU, PT2262, PT2272, fortification, disarm 目　录 1 绪论 1 11 防盗报警器的设计背景 1 1.2 无线防盗报警器的国内外发展现状 1 2 系统分析 2 2.1系统设计要求： 2 2.2无线防盗报警器的工作流程框图 2 3硬件设计 3 3.1原理描述系统功能框图 3 3.2功能模块详细设计 3 3.2.1无线转发防盗报警发送电路 3 3.2.2接收报警电路 5 3.2.3接收电路电源部分 5 3.2.4无线接收部分 6 3.2.5单片机控制部分 7 3.3主要芯片功能描述 7 3.3.1 AT89C51高性能8位单片机 7 3.3.2编码解码芯片PT2262/PT2272芯片选择 10 3.3.3集成芯片LM386 11 3.3.4门磁传感器 12 3.4安装与注意事项 12 4 软件设计 13 4.1主程序流程图： 13 4.2程序模块说明 13 4.2.1停电报警程序 14 4.2.2撤防程序 14 4.2.3布防程序 15 5 仿真与调试 16 5.1无线发射模块仿真 16 5.2无线接收模块仿真 17 5.3 无线装置的硬件调试 17 结论 19 致谢 20 参考文献 21 附录：部分程序 22 单片机体积小、重量轻、抗干扰能力强、高可靠性、高性能价格比、开发较为容易，在数据采集1.2 无线防盗报警器的国内外发展现状 目前，无线报警系统的需求主要是源于报警系统安装时环境的要求。通常无论是安装无线报警系统 还是有线报警系统，是由安装人员而不是最终使用用户决定的，而安装人员最关心的是利润，只有在人工很高的地区，他们才会考虑无线系统安装时带来的各种便利[4]。目前在中国市场中，虽然人工成本要比国外低的多，