89C52单片机的智能门禁系统设计
毕业论文关键词:智能门禁系统 89C52 单片机 电子密码锁 指纹识别
Intelligent Access Control System Based onMicro-controllers
AbstractWe are now living in a new era of science and technology, people on the safety oflife and property are also increasing. The traditional access control system because of itsfunction and structure is too single, low safety factor, has been unable to meet therequirements of the modern people. However, access control systems which combined avariety of high-tech intelligent are effectively overcome the shortcomings of traditionalaccess control systems. Intelligent access control system safety, use more convenient.Therefore, more and more people are knowing and applying the intelligent accesscontrol systems.This system uses two kinds of recognition methods, such as electronic passwordlock and fingerprint identification. The system consist of the 89C52 micro-controller,fingerprint identification module, matrix keyboard module, LCD display and resetmodule. The main function of the access control system is by entering a password or afingerprint to control a switch .After Entering the system, we can achieve the functionof changing the password, inputting and deleting or clearing the fingerprint off.This paper first chapter analysis the concept of intelligent Access Control System,research background, significance, current situation of the development; The secondchapter general introduction the overall plan of the intelligent entrance guard systemfunctions, design and selection of the chip; The third chapter introduces the hardwarecircuit function of each module; The fourth chapter introduces the software design ofthis system; The fifth chapter is the physical display.The paper has a figure 15 and 12 references.
Key words: intelligent access control system 89C52 micro-controllerelectronic password lock fingerprint recognition
目 录
摘 要..I
Abstract. II
目 录.III
图清单..V
1 绪论1
1.1 门禁系统的概念.1
1.2 门禁系统研究背景和意义..1
1.3 门禁系统现状..1
2 系统方案设计3
2.1 系统主要功能..3
2.2 系统设计总体思路.. 3
2.3 系统主要芯片的选择. 4
3 系统主要硬件电路设计.5
3.1 主控芯片介绍..5
3.2 指纹识别模块电路.. 6
3.3 矩阵键盘模块电路.. 7
3.4 12864 液晶显示屏电路. 8
3.5 报警电路. 8
3.6 AT24C02数据存储电路. 9
3.7 双色指示灯电路.9
3.8 复位电路.. 10
3.9 电源电路.. 10
4 系统软件设计.12
4.1 指纹识别程序12
4.2 电子密码锁设计..13
5 系统调试 15
5.1 电路调试.. 15