LG GROUP system office room 【LGA16H-LGYY-LGUA8Q8-LGA162】
摘 要
随着社会经济和科技的飞速发展，射频识别技术越来越广泛的应用于各种行业，如：商流、物流、信息和资金等方的重要单元越来越得到重视。 门禁安全管理系统是新型现代化安全管理系统，它集自动识别技术和现代安全管理措施为一体你在哪里的 dsfdf体某些部位（如眼睛、指纹）的识别来确认来人是否经过授权。这种门禁系统相对射频识别的系统安全系数有很大提高，但其成本较高，在日常生活中还未广泛应用。
文章从门禁技术面，并以前所未有的速度迅猛发展，引起了许多国家的重视。特别是身份识别和安防等行业。门禁系统作为智能建筑的发展出发，首先介绍了射频识别技术的概念
、分类及工作原理，然后介绍了本次使用的射频芯片MFRC522。本RFID系统设计可分为硬件部分和软件部分。硬件部分以MFRC522射频识别模块为核心，结合主控模块STC89C52设计系统的外围硬件电路，实现对射频卡的控制与MCU之间的互通。软件部分采用C语言进行系统的下位机程序的开发，完成与IC卡之间的通信，实现数据交换功能。
关键字： 射频识别，门禁系统，MFRC522，STC89C52
RFID-based Intelligent Access Control System
(Control Part)
Abstract
Along with the social economy and the rapid development of science and technology，radio frequency identification technology are becoming more widely used in various sectors， such as trade，logistics，information and capital, with unprecedented speed rapid development，many countries have pay much more attention to it.
Access control security management system is a new type of modern safety management system, which combines automatic identification technology and modern safety control system can control the time to open and close the door effectively and monitoring and management of personnel access. The RFID-based Intelligent Access control System ensure those people who hold the appropriate documents to the free access and prevent foreigners or those who can not provide documents to enter. And some Access Control is the use of biometric technology, by identify some parts of human body (such as eyes, fingerprints) to confirm the people whether be kind of Access control system is safer than the system based on RFID,but it has not used in our daily life because of its high cost.
On the basis of the development of Entrance Guard Sytem，at first this paer generally
introduces the RFID technology，including its concepts、categories and works，Then it introduces
the RF chip MFRC522 used in this system. The design of this system can be divided into
the hardware and software components. The hardware part based on the RFID module MFRC522, combined with main control module STC89C52 to design the peripheral hardware circuits, makes the communication between the central control machine come true. The hardware part uses C programming language to design lower computer programme and completed a read/IC card issuing device and the communication between the data exchange capabilities.
Key words: RFID, Guard Control System, MFRC522, STC89C52
感温元件
摘要 I
Abstract II
第1章 绪论 1
课题研究的背景及意义 1
课题研究现状 1
1
国外研究现状 2
门禁系统发展趋势 3
课题设计任务 3
金丝雀定位
论文结构 3
第2章 基于RFID技术的门禁系统理论基础 4
射频识别技术概述 4
4
分类 4
5
铱-192 5
非接触式读卡芯片MFRC522 6
MFRC522概述 6
MFRC522特性 6
MFRC522管脚排列 7
本章小结 7
第3章 门禁系统硬件设计 8
STC89C52主控模块 8
STC89C52简介 8
STC89C52主要特性 9
STC89C52管脚说明 10
STC89C52最小系统接口电路 11
LCD12864液晶显示模块 11
LCD12864简介 11
LCD12864分类 11
太阳能手机充电器 12864管脚说明 12
LCD12864基本特性 12
12864与89C52接口 13
氚电池
按键 13
本章小结 14
第4章 门禁系统软件设计 15
Keil C51开发系统 15
LCD显示程序设计 16
LCD初始化 16
LCD显示 17
按键程序设计 22
密码验证 22
密码修改 24
本章小结 27
结论 28
太阳能沼气池谢辞 29
参考文献 30
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