摘 要随着法律知识在人们生活中的普及，社会的不断发展和科学技术的进益求精，人们开始对保护我们的人身安全和财产安全的观念变得越来越强。这些使我们对当代的防盗技术会提出了更高的条件。现在的报警系统，可以实现的功能主要有防盗防火报警等等，目前出售的防盗报警器的总类有许多。这些产品中使用电子密码锁、红外技术和微波技术的防盗报警系统的技术最多。一般小区的用户使用电子密码锁是最为普遍，特别是在单位机密文件的保存和中高档小区。因此多功能的智能防盗锁变得特别重要。73712

一般家庭的防盗门中的电子密码锁是由密码的来控制电路，从而来控制门锁开关的合、闭。如许的电子密码锁主要的焦点是芯片，由程序来达到防盗门门锁的开关和报警功能的。本文将基于单片机对防盗门的电子锁及报警部分进行简要介绍，并向大家主要介绍和着重分析。本基于单片机的多功能防盗门设计是以AT89C51为主控模块，并且结合LCD1602为显示模块，矩形4×4键盘电路，蜂鸣器报警电路、AT24C02存储单元以及开锁机构。

该论文有图20幅，表8个，参考文献22篇。

关键词：电子密码锁   AT89C51单片机   报警系统   

Microcontroller-based multi-function security door system design

ABSTRACT

With the popularization of legal knowledge in people's life,continuous development of society,science and technology,the concept of people starting to protect our personal safety and property security gets stronger,which makes us putting forward a higher condition of the contemporary anti-theft technology。Nowadays the alarm system can achieve many main functions,such as Guard against theft,fireproofing,alarming,etc。there are a variety of Burglar alarms sold nowadays。The most technologies of these products used are electronic lock technology,infrared technology and microwave。Users of the communities generally use the electronic code lock,especially in the high-security units and High-grade residential area。So the multi-functional intelligent anti-theft locks become particularly important。

The electronic security door lock of common families usually use passwords to control circuit,which enables the open and lock of the door。The main focus of electronic locks is chip,which allows the program to achieve the anti-theft door lock switches and alarm functions。This paper will give a brief introduction and Emphatically analysis based on the single-chip electronic locks and security door alarm。The design of the multi-function security doors is based on AT89C51 as the main control module, and incorporates LCD1602 display module,rectangular 4 × 4 keyboard circuit,buzzer alarm circuit,AT24C02 storage unit,and unlocking mechanism。

The papers Figure 20, Table 8, reference 22。

Key Words: Electronic locks  AT89C51 single-chip  alarm system 

目 录

摘 要 I

ABSTRACT II

目 录 III

图清单 V

表清单 V

1 绪 论 1

1。1 研究的目的和意义 1

1。2国内外研究现状 2

1。3防盗门上电子密码锁的技术简介 4

1。4论文的总体安排 6

2 防盗门电子密码锁的硬件设计 7

2。1  单片机主控模块