(完整版)基于单片机的红外防盗报警器的设计0913011毕业论文

红外防盗报警器的设计

胡锐锋

电子信息工程专业 学号：

摘 要：本系统采用了热释电红外传感器，它的制作简单、成本低、安装比较方便，而且防盗性能比较稳定，抗干扰能力强、灵敏度高、安全可靠。这种防盗器安装隐蔽，不易被盗贼发现，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。本设计包括硬件和软件设计两个部分。硬件部分包括单片机控制电路、红外探头电路、驱动执行报警电路、LED控制电路等部分组成。处理器采用51系列单片机AT89C51，整个系统是在系统软件控制下工作的。

关键词：单片机；红外传感器；数据采集；报警电路

The Design of Imfrared Alarm

Hu Ruifeng

Electronic Information Engineering Specialty No:

Abstract : This system used Pyroelectric infrared sensor. Its manufacture is simple, and its cost is low, and fixing is convenient. Besides, the system . After processed by SCM, the signal of alarm communicates with PC, which is convenient for uniform management. This design includes ; alarm circuit

目 录

0

摘

要······························································1

·

·

·

·

·

1 引

言····································································4 1

.

1

设

计

任

务

与

要

求 ·······················································4 2

基

础

知

识

介

绍···························································4 2.1

热

释

电

红

外

传

感

器

简

单

介

绍 ·············································4 2.2

PIR

的

原

理

特

性·························································5 2.3

AT89C51

单

片

机

简

单

概

述·················································5 2.3.1

AT89C51

单

片

机

的

结

构·················································5 2.3.2

AT89C51

单

片

机

管

脚

说

明···············································6 3

方

案

设

计································································8 3.1

总

体

设

计

思

路 ··························································8 3.2

具

体

电

路

模

块

设

计 ······················································9 3.2.1

热

释

电

红

外

传

感

器

原

理 ················································9 3.2.2

放

大

电

路

的

设

计 ······················································9 3.2.3

时

钟

电

路

的

设

计 ······················································9 3.2.4

复

位

电

路

的

设

计······················································10 3.2.5

发

光

二

极

管

报

警

电

路

的

设

计············································10 3.2.6

声

音

报

警

电

路

的

设

计··················································11 3.3

系

统

硬

件

电

路

的

选

择

及

说

明·············································11 3.4

软

件

的

程

序

实

现·······················································12 3.4.1

主

程

序

工

作

流

程

图····················································12 3.4.2

中

断

服

务

程

序

工

作

流

程

图···············································13 4

软

件

仿

真·······························································13 5

总