基于单片机的红外防盗报警系统的设计(完整).doc

摘 要 随着人们生活水平的大幅度提高，人们的保护意识不断增强，防盗报警系统便充分体现了其应用价值。防盗报警系统的设计便是为满足现代住宅防盗的需要所设计的家庭式电子防盗系统。 防盗报警系统采用了热释电红外传感器，这种防盗器安装隐蔽，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。防盗报警系统设计包括硬件和软件设计两个部分。硬件部分设计主要包括红外探头电路接收信号，LED控制电路控制发光及驱动执行报警电路执行报警等。软件部分设计主要包括使用protues仿真软件能够实现声光报警的作用，同时运用Pro/E软件对防盗报警系统的外壳进行设计从而使防盗报警系统的设计更加完善。 关键词：单片机；红外传感器；信号接收；报警电路 The Design of Anti-theft Alarm Abstract With the peoples living standards greatly improved , the protection of peoples growing awareness of the anti-theft alarm system fully reflects the value of its application. This design is for the family of electronic security systems designed to meet the needs of modern residential burglar. Anti-theft alarm system used Pyroelectric infrared sensor,the fixing of this alarm is covert, after has been processed by SCM, the signal of alarm communicates with PC, which is convenient for uniform management. Anti-theft alarm design includes hardware part and software part. The hardware part of the design including infrared sensor circuit receives the signal, the LED control circuit to control light-emitting and drive the implementation of the implementation of the alarm circuit alarm. The software part of the design including the use of protues simulation software to achieve the role of sound and light alarm, while the use of Pro/E software, anti-theft alarm system of the shell are designed so the anti-theft alarm system design more perfect. Key words: SCM; infrared sensor; signal receiving; alarm circuit 目录 摘要 Ⅰ Abstract Ⅱ 第一章 绪论 1 1 .1课题背景 1 1. 2防盗报警系统在国内外的发展 1 1. 3防盗报警系统的发展前景与趋势 3 1. 4结构安排 3 第二章 2. 1 设计的目的及意义 4 2. 2设计内容及要求 4 2. 3相关硬件介绍 4 2.3.1常见的几种红外传感器介绍 5 2. 3.2热释红外传感器的原理 6 2. 3.3 热释电红外传感器原理特性 7 2. 3.4 热释电红外传感器的选定 7 2. 3.5 AT89C51单片机的概述 8 2. 3.6 AT89C51单片机的引脚分配 10 第章 12 3.1防盗报警系统总体设计思路 12 3.2具体硬件电路模块设计 13 3.2.1放大电路的设计 13 3.2.2时钟电路的设计 14 3.2.3复位电路的设计 15 3.2.4发光二极管报警电路的设计 15 3.2.5声音报警电路的设计 16 3.3硬件电路的选择及说明 16 3.4软件的程序实现 16 3.4.1主程序工作流程图 16 3.4.2设计编程程序 18 第四章 防盗报警系统仿真 20