基于RFID技术的智能门禁系统设计毕设论文

I基于RFID技术的智能门禁系统设计（控制部分）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，STC89C52RFID-basedIntelligentAccessControlSystemII(ControlPart)AbstractAlongwiththesocialeconomyandtherapiddevelopmentofscienceandtechnology，radiofrequencyidentificationtechnologyarebecomingmorewidelyusedinvarioussectors，suchastrade，logistics，informationandcapital,etc.Andwithunprecedentedspeedrapiddevelopment，manycountrieshavepaymuchmoreattentiontoit.Accesscontrolsecuritymanagementsystemisanewtypeofmodernsafetymanagementsystem,whichcombinesautomaticidentificationtechnologyandmodernsafetymeasure.Accesscontrolsystemcancontrolthetimetoopenandclosethedooreffectivelyandmonitoringandmanagementofpersonnelaccess.TheRFID-basedIntelligentAccesscontrolSystemensurethosepeoplewhoholdtheappropriatedocumentstothefreeaccessandpreventforeignersorthosewhocannotprovidedocumentstoenter.AndsomeAccessControlistheuseofbiometrictechnology,byidentifysomepartsofhumanbody(suchaseyes,fingerprints)toconfirmthepeoplewhetherbeauthorized.ThiskindofAccesscontrolsystemissaferthanthesystembasedonRFID,butithasnotusedinourdailylifebecauseofitshighcost.OnthebasisofthedevelopmentofEntranceGuardSytem，atfirstthispaergenerallyintroducestheRFIDtechnology，includingitsconcepts、categoriesandworks，ThenitintroducestheRFchipMFRC522usedinthissystem.Thedesignofthissystemcanbedividedintothehardwareandsoftwarecomponents.ThehardwarepartbasedontheRFIDmoduleMFRC522,combinedwithmaincontrolmoduleSTC89C52todesigntheperipheralhardwarecircuits,makesthecommunicationbetweenthecentralcontrolmachinecometrue.ThehardwarepartusesCprogramminglanguagetodesignlowercomputerprogrammeandcompletedaread/ICcardissuingdeviceandthecommunicationbetweenthedataexchangecapabilities.Keywords:RFID,GuardControlSystem,MFRC522,STC89C52基于RFID技术的智能门禁系统设计（控制部分）1目录摘要........................................................................IAbstract....................................................................II第1章绪论.................................................................11.1课题研究的背景及意义................................................11.2课题研究现状........................................................11.2.1国内研究现状..................................................11.2.2国外研究现状..................................................21.3门禁系统发展趋势....................................................31.4课题设计任务........................................................31.5论文结构............................................................3第2章基于RFID技术的门禁系统理论基础......................................42.1射频识别技术概述....................................................42.1.1射频识别技术..................................................42.1.2射频识别技术的分类............................................42.1.3射频识别技术的典型结构........................................52.1.4射频识别技术的工作原理........................................52.2非接触式读卡芯片MFRC522.............................................62.2.1MFRC522概述..................................................62.2.2MFRC522特性..................................................62.2.3MFRC522管脚排列..............................................72.3本章小结............................................................7第3章门禁系统硬件设计.....................................................83.1STC89C52主控模块...................................................83.1.1STC89C52简介.................................................83.1.2STC89C52主要特性.............................................93.1.3STC89C52管脚说明............................................103.3.4STC89C52最小系统接口电路....................................113.2LCD12864液晶显示模块..............................................113.2.1LCD12864简介................................................113.2.2LCD12864分类................................................113.2.312864管脚说明...............................................123.2.4LCD12864基本特性............................................1223.2.512864与89C52接口...........................................133.3按键...............................................................133.4本章小结...........................................................14第4章门禁系统软件设计....................................................154.1KeilC51开发系统..................................................154.2LCD显示程序设计...................................................164.2.1LCD初始化...................................................164.2.2LCD显示.....................................................174.3按键程序设计.......................................................224.3.1密码验证.....................................................224.3.2密码修改.....................................................244.4本章小结................................