红外人体报警器的设计本科毕设论文

毕业设计（论文）报告

题目红外人体报警器的设计

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指导教师

2013年4 月

红外线人体报警器的设计

摘要：红外报警器大多数采用国外的先进技术,其功能也非常先进。其中包括被动式、热释电型红外报警器,也即是本文将研究的产品。还有红外监控无线报警器,超声波防盗报警器,红外线防盗报警器,高灵敏红外报警器,触摸式延时防盗报警器, 触摸式防盗报警器,红外报警器, 红外线声先报警器……

报警器能探测人体发出的红外线，由红外线传感器、信号放大电路、电压比较器、延时电路和报警指示电路等组成。当人进入报警器的监视区域内，即可发出报警信号，适用于家庭、办公室、仓库、实验室等比较重要场合防盗报警。概述了红外辐射的知识、热释电红外传感器的结构和工作原理。利用热释电红外传感器设计了一种被动式红外报警电路,分析了该电路的功能和工作原理。热释电红外传感器具有很多的优点,在防盗、警戒等装置中应用较广。

关键词：被动式红外报警器、热释电红外（PIR）、传感器、热释电效应

Design of infrared alarm

Abstract：Infrared alarm in most cases, the foreign advanced technology, and its function is very advanced. Including passive pyroelectric infrared alarm, that is, the products that are to be studied in this article. Infrared monitoring wireless alarm system, ultrasonic burglar alarm, infrared burglar alarm, high sensitivity infrared alarm, the touch delay burglar alarm, the Touch burglar alarm, infrared alarm, infrared sound the first alarm ......

Detectors capable of detecting infrared rays emitted by the body, provided by the infrared sensor, the signal amplification circuit, a voltage comparator circuit and other components of the delay circuit and the alarm indication. When people enter the alarm monitoring area, you can send an alarm signal, suitable for homes, offices, warehouses, laboratories and other important occasions burglar alarm. An overview of the structure and working principle of the knowledge of infrared radiation, thermal pyroelectric infrared sensor. Pyroelectric infrared sensor designed a passive infrared alarm circuit analysis of the functions and working principle of the circuit. Pyroelectric infrared sensor has many advantages, a wider application of the anti-theft warning device.

Keywords：passive infrared alarm、pyroelectric infrared (PIR)、sensor、pyroelectric effect

目录

前言 (1)

第一章绪论 (2)

1.1 电路设计背景 (2)

1.2 红外报警器分类及原理 (2)

1.3 热释电红外传感器的原理特性 (4)

1.4 设计意义及要求 (5)

第二章电路组成及框图 (6)

第三章单元电路设计 (8)

3.1 电源电路设计 (8)

3.1.1 整流滤波电路 (8)

3.1.2 稳压电路 (10)

3.2 放大电路的设计 (12)

3.2.1 反相交流放大器 (12)

3.2.2 同相交流放大器 (12)

第四章整机电路及工作原理 (14)

第五章电路制作及调试 (16)

5.1 电路仿真 (16)

5.1.1 Multisim仿真软件介绍 (16)

5.1.2 Protel 99SE PCB软件介绍 (16)

5.1.3 仿真与验证 (18)

5.2 电路的制作与调试 (20)

5.2.1 元件介绍 (20)

5.2.2 集成运放的基础知识 (24)

5.2.3 集成电路的检测 (24)

5.2.4 元器件的测试与筛选 (25)

5.2.5 元器件的焊接要点 (25)

5.2.6 电路测试 (26)

致谢 (27)

参考文献 (28)

附录 (29)

附录1 程序 (29)

附录2 电路图 (46)

附录3 元件表 (46)

附录4 PCB安装图 (48)