毕业设计（论文）-基于非接触式IC卡的门禁管理系统的应用精选.doc

门禁系统设计 摘 要 本论文介绍了一种基于非接触式IC卡的门禁管理系统的应用，非接触式IC卡是IC卡领域的一项新兴技术，它是射频识别技术和IC卡技术相结合的产物。射频识别（Radio Frequency Identification,简称RFID）技术[1]是最近几年发展起来的一门新的自动识别技术。它利用射频方式在非接触式IC卡和读卡器之间进行双向通信，完成目标识别和数据交换，而卡上电路的工作电源由读卡器发出的电磁波能量提供。由于非接触式IC卡具有操作快捷、防碰撞能力强、工作距离远、安全性高、便于“一卡多用”等特点，在身份识别、自动收费和电子钱包等领域具有接触式IC卡所无法比拟的优越性，具有广阔的市场前景。非接触式IC卡读卡器是非接触式IC卡应用系统的关键设备之一,本课题中应用的读卡器是一种读写距离为100mm的非接触式IC卡读卡器。 随着射频识别技术的推广，Mifare卡已经广泛应用于公共交通终端、手持终端，板上单元、非接触式PC终端等各个非接触式通信场合。非接触式智能卡读写器系统是射频技术中的一个重要组成部分，可完成指令分析、数据采集等诸多功能。读卡器的实现原理如下：由读写器向Mifare1卡，也就是向射频卡发射特定频率的无线电磁波，当射频卡靠近读写器时，受读写器发射的电磁波激励，卡片内的LC谐振电路产生共振并且接收电磁波能量，当射频卡接收到足够的能量时，就将卡内存储的识别资料以及其他数据以无线电波方式传输到读写器并且接受读写器对卡内数据的进一步操作[2]。 论文从门禁技术的发展出发，首先介绍了非接触式IC卡的特点、种类、组成以及国际标准，然后介绍了非接触式IC卡门禁系统所涉及的技术，在此基础上，论文又详细地阐述了非接触式IC卡读卡器的硬件和软件设计，读卡器的硬件设计包括蜂鸣器驱动电路、RS232通信电路、MF RC500接口电路和读卡器天线电路；软件设计包括MF RC500的应用程序的设计、读卡器其他电路的应用设计和主程序设计三个部分。 GATE CONTROL SYSTEM ABSTRACT This article introduces a kind of entrance guard system this is based on Radio Frequency Identification cards.Contactless IC Card is one kind of new techology and IC card technology. Radio Frequency Identification technology is a new technology of autoidentification in recent years.Wireless and bidirection communication between reader and contactless card is their communication mode to identificate the goal and to swap data by radio frequency identificationThe power of IC card circuit is supplied by the power of electromagnetic wave from reade.Because contactless IC card has some advantages over common IC card such as its high working speed、good anticollsion quality and long working distance,there will be a good prospect for it in many fields,such as automatic pricing、identity distinguishing、electric wallet and so on.The contactless card reader is one of the key devices of a contactless IC card and system. We develop one kind of contactless IC card reader,which is onepart of a project and has about 100mm working distance. As RFID technology promotion, Mifare card has been used widely in public transport terminals,