基于单片机控制的红外防盗报警器的设计

文档编号:JD542 文档字数:13541,页数:37

  [摘要]：随着社会的不断进步和科学技术、经济的不断发展，人们生活水
平得到很大的提高，对私有财产的保护意识在不断的增强，因而对防盗措施提
出了新的要求。 本设计就是为了满足现代住宅防盗的需要而设计的家庭式电子
防盗系统。
目前市面上装备主要有压力触发式防盗报警器、开关电子防盗报警器和压力遮光触发式防盗报警器等各种报警器，但这几种比较常见的报警器都存在一些缺点。本系统采用了热释电红外传感器，它的制作简单、成本低，安装比较方便，而且防盗性能比较稳定，抗干扰能力强、灵敏度高、安全可靠。这种防盗器安装隐蔽，不易被盗贼发现。同时它的信号经过单片机系统处理后方便和ＰＣ机通信，便于多用户统一管理。
本设计包括硬件和软件设计两个部分。硬件部分包括单片机控制电路、红外探头电路、驱动执行报警电路、LED控制电路等部分组成。处理器采用51系列单片机AT89S51。整个系统是在系统软件控制下工作的。系统程序可以划分为以下几个模块：　数据采集、键盘控制、报警和显示等子函数。

[关键词]：单片机、红外传感器、数据采集、报警电路。

Infrared burglar alarm design controls which based
on the monolithicintegrated circuit
Abstract :Along with society's unceasing progress and science and technology,economical unceasing development, the people living standard obtainsthe very big enhancement, to private property protection consciousnessin unceasing enhancement, thus set the new request to the securitymeasure. This design is for satisfy the family type electron securitysystem which the modern housing security needs to design.
At present in the market condition equips mainly has the pressure totouch the hair style burglar alarm, the switch electron burglar alarmand the pressure shields light  the hair style burglar alarmand so on each kind of alarm apparatus, but these kind of quite commonalarm apparatuses all have some shortcomings. This system used hashotly released the electricity infrared sensor, its manufacturesimple, cost low, installm the antijamming ability strong, thesensitivity high, safe was reliable. This kind of security installmenthiding, was not easily discovered by the bandits and thieves.Simultaneously its signal after monolithic integrated circuit systemprocessing the convenience and P the C machine correspondence, isadvantageous for the multiuser unification management.
This design designs two parts including the hardware and software. Thehardware partially including the monolithic integrated circuit controlcircuit, infrared pokes head in the electric circuit, the actuationexecution alarm circuit, the LED control circuit and so on the partialcompositions. The processor uses 51 series monolithic integratedcircuits AT89S51, the overall system is works under the systemsoftware control. The system program may divide into following severalmodules: The data acquisition, the keyboard control, reports to thepolice with the demonstration small steelyard function.

Key words: AT89S51 monolithic integrated circuit, infrared sensor,data acquisition, alarm circuit.

目  录
1.  绪论 1 1.1  前言 1

1.2  设计任务与要求  1
2.  热释电红外传感器概述 2
2.1  PIR传感器简单介绍 2
2.2  PIR 的原理特性 2
2.3  PIR 结构特性 3
3.  AT89S51单片机概述 6
3.1  AT89S51单片机的结构 6
3.1.1管脚说明 8
3.1.2  主要特性 11
3.1.3  振荡器特性 11
3.2  AT89S51单片机的工作周期 12
3.3  AT89S51单片机的工作过程和工作方式 13
3.4  AT89S51的指令系统 16
4.  方案设计 18
4.1 系统概述 18
4.2 总体设计 19
4.3 系统硬件选择 19
4.4 硬件电路实现 20
4.5 软件的程序实现 21
5.  结论概述 27
5.1 主要结论 27
5.2 结束语 27
致谢 28
参考文献  29

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