基于RFID技术的智能门禁系统设计（控制部分）.doc

I 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MFRC52 2射频识别模块为核心,结合主控模块STC89C5 2 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 (C ontrol P art) II Abstract Along with the social economy and the rapid development of science and technology , radio frequency identification technology are ing 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 isa new type of modern safety management system, bines 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 inour 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 ponents. The hardware part based