1、 毕业设计（论文）毕业设计（论文） 题 目 红外线报警器毕业设计 分 院：_ 机电工程分院_ 专 业：_应用电子技术_ 班 级：_ _ _ 学 号：_ _ _ 学生姓名：_ _ 指导教师：_ _ 2012 年 12 月 28 日 红外线报警器 摘 要 当今社会，随着生活节奏的不断加快，电子电器的飞速发展，给广大群众及 家庭带来了很大的方便， 很多高档住宅都配备着各式各样的高档家具及电器以及 贵重物品。正因如此，这也成了一些不法分子的经常犯罪场所。应此，很多居民 都在为防盗而苦恼。报警器在这个时候就成为了防盗的利器，但市场上的报警器 各有个样，可信度也各有千秋，经常出现误报的现象。出现误报主要有
2、以下几个 方面原因：红外探测器易受温度、光线等环境因素影响而产生误报；红外探测器 对入侵行为判断力不够准确造成误报；也有些报警器的质量太差，如元器件的损 坏和生产工艺不良造成误报；还有跟选择的设备、安装的方式、角度、位置、也 有关；还有人为的因素主要有用户操作不当、不小心触发报警器、误闯、误入已 经设防的访区等都会产生误报。 关键词：关键词：扬声器；传感器；功率放大电路 Abstract Today, as the pace of life continues to accelerate, rapid development of electronic appliances, brings g
3、reat convenience to the general public and families, many homes are equipped with a variety of high-end furniture and electrical appliances as well as valuables. Because of this, the number of regular places of crime. This, many people are in distress for security. Alarm at this time becomes a secur
4、ity tool, but alarm has a sample in the market, credibility is different, often appear the phenomenon of false positives. Appears errors reported main has following several area causes: infrared detector easy by temperature, and light, environment factors effect and produced errors reported; infrare
5、d detector on invasion acts judgment enough accurate caused errors reported; also some alarm of quality too poor, as components of damaged and production technology bad caused errors reported; also has with select of equipment, and installed of way, and angle, and location, and also about; also has
6、human of factors main has user operation improper, and does not carefully triggered alarm, and errors through, and errors into has fortification of visit area, will produced errors KeKey wordsy words：Sensor；Power amplifier circuit ；Sensitivity 目 录 引言. 1、报警器的描述 1.1 报警器的概念. 1.2 报警器的种类. 1.3 防盗报警器的基本结构 1.4 报警器适用范围. 2、设计要求 2.1 目的 2.2 性质 3、红外线探测报警器的总体设计 3.1 红外线探测报警器系统的结构及其工作原理. 3.2 报警延时电路. 3.3 开机延时电路. 3.4 信号放大电路. 4、整机测试 4.1 电路测试. 4.2 元器件的测试与
