安徽工贸职业技术学院 毕业设计（论文）成绩评定
专业、班级 学生姓名 完成日期 题 目：
毕业设计（论文）共 页，其中：图 幅，表 个 毕业设计（论文）指导小组评定意见：
毕业论文成绩的评定：
指导教师审阅成绩（70%） 评阅教师评阅成绩（30%） 总 分
系（院）负责人签名：
年 月 日
安徽工贸职业技术学院毕业设计（论文）
红外报警器的设计与实现
摘要：外感应是一个技术已经相当成熟的领域，几十年来，人们为之付出了不懈的努力，无论从线路技术还是元器件方面，乃至于思想认识上都取得了长足的进步。在当今的社会红外感应在诸多领域都得到了应用。如红外报警器、红外数据传输器、红外夜视仪等方面。所以设计一个简易红外报警器有利于我们对红外传输技术有所了解。
这次设计简易红外报警器的内容是：设计符合要求的电路原理图，对三极管构成无稳态振荡电路、红外收发电路自锁驱动与复位电路及三极管构成无稳态振荡声光电路的各个元件的参数静态工作点进行分析计算，用Altium Designer Summer 09软件制作出PCB板，在其过程中注意元件的布局和板面的设计，用multisim7进行仿真。根据元件参数采购元件，并进行安装和调试，若有故障，则利用已有的故障维修思路和方法进行检修。使其能正常工作，达到合格的标准。在设计中我受益匪浅，三极管构成自锁驱动与抚复位电路和三极管构成无稳态振荡电路结构原理等新的理论知识，复习巩固了以前所学的电路、模拟电子技术，现代电子电路与技术等知识。还更好的理论结合实际，把相关的新老知识应用到设计中，自己动手设计出成品。红外报警器的作用是把从发射端发送的信号经过空气有接收端接收，在这一过程中由于外部人体的作用阻碍了信号的传递而作为报警信号的触发条件。作为电子技术的毕业设计，本课题提出的红外对射报警器指标比较低，以及现实的干扰与实用性等原因采用直流供电红外发生发生电路。由于个人水平有限，本设计中的缺点、错误在所难免，恳请原谅！
关键词：红外报警器 三极管 防盗报警装置 稳态振荡
I
安徽工贸职业技术学院毕业设计（论文）
Design and Implementation of the infrared alarm
Abstract: The outside sensor is a technology is quite mature field, for decades, people paid a
tireless efforts, regardless of ideological understanding of the line technology or components and even have made, just like considerable progress . Infrared sensors in today ' s society has been applied in many fields . Such as infrared detectors, infrared data transmission, infrared night vision . Design a simple infrared alarm system is conducive to our understanding of infrared transmission technology . The design of simple infrared alarm is: designed to meet the requirements of the circuit schematic transistor constitute the steady-state oscillation circuit, infrared transceiver circuit self-locking drive and reset circuit and the transistor constitute a non-steady-state oscillation of sound and light circuit components the parameters of the static operating point analysis and computation to produce the PCB board of Altium Designer Summer 09software attention to the layout, of the components and board design in th E process simulation using Multisim7. Component parameters procurement of components, and installation and commissioning, if a failure, the use of troubleshooting ideas and methods of repair . To enable them to work properly, have reached the required standard . I benefited in the design, transistor constitute a self-locking drive and ask the reset circuit and transistor constitute a structural principle of steady-state oscillation circuit, a new theory of knowledge, to review and consolidate the circuit, analog electronics, electronic circuit technology and knowledge . Better integrate theory with practice, the application of old and new knowledge related to the design, it-yourself design to the finished product . The role of the infrared alarm signal sent from the transmitter through the air receiver to receive, in the process impede the transfer of the signal due to the role of the external body as the trigger of the alarm signal conditions . Graduated from the design of electronic technology, this topic is re Latively low infrared radio alarm indicators, and reality interfere with practicality reasons the DC power supply infrared generating circuit . Limited individual level, the disadvantage of this design, the error is inevitable urge to forgive!
Keywords: Infrared alarm Triode Anti theft alarm device Steady-state oscillation
II
安徽工贸职业技术学院毕业设计（论文）
目 录
引 言 .............................................................................................................................................. 1 第一章 红外报警器......................................................................................................................... 2
1.1红外线报警器简介 .................................................................................. 错误！未定义书签。
1.2 红外线报警器的工作原理 ..................................................................................................... 2 1.3 红外线报警器的功能 第二章 基础知识介绍
2.1释电红外传感器的原理 ......................................................................................................... 3 2.2 PIR的原理特性 ....................................................................................... 错误！未定义书签。 2.3 AT89C51单片机的概述 ...................................................................... 错误！未定义书签。 第三章 基于单片机的红外线报警器设计.......................................................................................... 3
3.1.硬件电路 ............................................................................................................................. 5 3.1.1电源电路 ............................................................................................ 错误！未定义书签。
3.1.2单片机系统......................................................................................... 错误！未定义书签。 3.1.3声光报警电路 ..................................................................................... 错误！未定义书签。 3.2 系统设计
3.2.1主程序................................................................................................ 错误！未定义书签。 3.3 系统调试 3.3.1 软件调试. 3.3.2 硬件调试
结 论 .............................................................................................................................................. 7 参考文献 .......................................................................................................................................... 11 致 谢 .............................................................................................................................................12
III
