热释红外防盗报警器的设计

编号:20130933206

本科生毕业设计

热释红外防盗报警电路的设计Design of Pyroelectric Infrared Anti-theft Alarm Circuit

学生姓名李娜

专业自动化

学号0933206

指导教师李居尚

分院电子工程分院

2013年6月

摘要

随着社会经济的飞速发展和人民生活水平的提高，人们对住宅的要求也越来越高，表现在不仅希望拥有舒适、安逸的住所，而且对安全性、智能性等方面也提出了要求。相反地，经济的快速增长也带来了相当大的负面社会效应，城乡、区域收入差距进一步拉大，流动人口也开始迅速增加，盗窃、入室抢劫等刑事案件也呈现出了增长趋势，人们也越来越渴望有一个安全的空间。人们迫切需要一种智能型的家庭防盗报警系统，能可靠的进行日常安全防范工作，即时发现各种险情并通知户主，以便将险情消灭在萌芽状态，这样人们便可安心工作，同时也保证了居民的生命财产不受损失。于是有关家庭、办公室和仓库等处的安全防范和自动报警系统的开发研制日益被科研单位和生产厂家所重视，现在市场上也出现了各种名目繁多的报警装置，但多由于可靠性较差、功能单一或造价高而难于普及。本文着重阐述热释红外防盗报警器的设计过程，了解防盗报警器的实际情况，最后提出了一些现阶段防盗报警器应用发展可采用的策略和应用前景。

关键词：防盗报警器防盗报警系统发展策略应用前景

ABSTRACT

With the rapid development of social economy and the improvement of people's living standards, people demand for housing is becoming more and more high, in not only hope to have a comfortable, comfortable accommodation, but also put forward some requirements for security, intelligent, etc. On the contrary, the rapid economic growth has brought considerable negative social effects of urban and rural, regional income gap widens, the floating population began to increase rapidly, theft, burglary and other criminal cases also revealed a trend of growth, people also more and more eager to have a safe space. People urgently need a kind of intelligent home security alarm system, can carry on the daily safety work reliable, real-time found all kinds of danger and inform the head of the household, so that the danger in the bud, so people can focus on their work, but also to ensure the people's life and property from losses. So about the place such as homes, offices and warehouse security and automatic alarm system developed by scientific research units and manufacturers increasingly attention, now in the market there have been various kinds of alarm device, but more because of poor reliability, single function, or high cost and difficult to popularize. This article focuses on the design process of the pyroelectric infrared burglar alarm, to understand the actual situatio n o f the burglar alarm, finally puts forward some current anti-theft alarm can adopt the strategy of development and application prospects

Keywords: Anti-theft Alarm Security Alarm System Development Strategy Application Prospects

目录

绪论 (1)

第一章本设计流程 (2)

第二章热释红外防盗相关知识综述 (4)

2.1 基础知识介绍 (4)

2.1.1 热释红外传感器简单介绍 (4)

2.1.2 AT89C51单片机的简单概述 (4)

2.1.3 AT89C51单片机的管脚说明 (6)

2.1.4 AT89C51单片机的主要特性 (9)

2.1.5 AT89C51单片机的工作周期 (9)

2.2 热释红外防盗报警器的介绍 (10)

2.2.1 常见的几种红外传感器的介绍 (10)

2.2.2 热释红外传感器的原理特性 (12)

2.3 热释红外防盗报警电路的设计 (13)

2.4 总体设计思路 (15)

2.5 系统方案设计 (15)

2.5.1 系统的相关设计 (16)

2.5.2 传感器技术 (16)

2.5.3 单片机技术 (16)

2.5.4 电源电路设计 (17)

第三章主机电路设计 (18)

3.1 主机部分 (18)

3.2 调整电路的设计 (19)

3.3 时钟电路的设计 (19)

3.3.1 内部时钟电路的设计 (20)

3.3.2 外部时钟电路的设计 (20)

3.4 振动位移传感器的设计 (21)

3.5 蜂鸣器电路的设计 (21)

3.6 数码管显示电路的设计 (21)

3.7 复位电路的设计 (22)

3.8 声音报警电路的设计 (23)

第四章系统硬件电路的选择及说明 (24)

第五章软件编程 (26)