基于单片机的多功能住宅安防报警系统的设计

本科生毕业论文 基于单片机的多功能 住宅安防报警系统的设计

院 系

专 业 班 级 学 号 学 生 姓 名 联 系 方 式 指 导 教 师 职 称

2012年5月

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基于单片机的多功能 住宅安防报警系统的设计

摘 要

本系统以MCS-51系列单片机STC89C52为微处理器设计了住宅安防报警系统。系统包括硬件和软件设计两个部分，整个系统硬件在软件控制下工作的。硬件部分包括单片机控制电路、传感器采集电路、驱动执行报警电路、LCD显示电路等部分组成。该系统制作简单、成本低，功能齐全、安装比较方便，而且安防性能比较稳定，抗干扰能力强、灵敏度高、安全可靠,另外这种防盗器安装隐蔽，不易被盗贼发现。该系统将极大改善广大家庭的家居安全环境。

关键词：单片机；传感器；家居安防

Design of the Multi-function Home Security Alarm System Based on the Single-chip

ABSTRACT

This system with MCS-51 MCU STC89C52 microprocessor design residential security alarm system.The system consists of hardware and software design of two parts, the hardware of the whole system works under software control.The hardware part comprises a single-chip control circuit, sensor circuit, driving alarm circuit, LCD display circuit components. The system has the advantages of simple manufacture, low cost, complete function, the installation is convenient, and the security performance is relatively stable, strong anti-interference ability, high sensitivity, safe and reliable, and the anti-theft device concealed installation, is not easy to be the thief found.The system will greatly improve the majority of the family home security environment.

Key words: SCM; sensor; home security

目 录

1 绪 论 ········································································································· 1

1.1 课题背景和意义 ············································································································· 1 1.2 国内外研究现状 ············································································································· 1 1.3 论文的主要工作和结构 ································································································· 2

2 系统硬件设计 ······················································································································ 3

2.1 方案选择论证 ················································································································· 3 2.2 系统总体方案设计 ········································································································· 3 2.3 数据采集模块 ················································································································· 4 2.4 单片机控制模块 ··········································································································· 10 2.5 声光报警模块 ··············································································································· 14 2.6 LCD显示模块 ·············································································································· 15

3 系统软件设计 ···················································································································· 18

3.1 主程序流程图 ··············································································································· 18 3.2 中断程序流程图 ··········································································································· 18

4 软件仿真 ····························································································································· 21

4.1 设计预达到的目标 ······································································································· 21 4.2 软件仿真效果 ··············································································································· 23

5 总 结 ···································································································································· 23

参考文献 ······································································································································· 25 附 录 ··········································································································································· 26 致 谢 ··········································································································································· 34

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