【作者】 张丽；

【导师】 梁楚樵；

【作者基本信息】 武汉理工大学 ， 通信与信息系统， 2006， 硕士

【摘要】 非接触式IC卡(Contact less Card)技术是最近几年发展起来的一项新技术。它是将无线识别技术和IC卡技术集于一体,成功解决了无源(卡中无电源)和非接触这一难题,是电子器件领域的一大突破。随着社会经济和科技的发展,非接触式IC卡技术已广泛地应用于各种行业,特别是公共交通、无线通信、身份识别、金融交易和安全防卫等行业。门禁系统是一种管理人员进出的数字化管理系统。非接触式IC卡由于其较高的安全性、较好的便捷性和性价比成为门禁系统的主流。 本文首先简单介绍了IC卡的技术发展背景和应用现状,重点分析非接触式IC卡的技术特点和应用方向,然后通过对射频识别技术的研究,分析了非接触式IC卡的工作原理。针对本系统所采用的Mifare1非接触式IC卡作了简要介绍,并对Mifare1卡的功能组成以及IC卡的安全性能进行了分析。接着阐述了系统的设计目标和预期实现的主要功能,以及本智能门禁系统的组成结构,并分析了本系统的安全机制。 本文详细讲述系统硬件和系统软件设计及开发过程,重点针对于各芯片的选用和功能,对硬件电路的微处理模块PIC16F876、读写模块MF RC500、存储模块AT24C64、通讯模块RS232/485以及时钟电路PCF8563各个功能进行了具体阐述,重点分析了微处理器PIC16F876和Mifare1IC卡专用读写芯片MF RC500特性以及两者之间的接口电路,并分析了用来存储刷卡记录的数据存储器AT24C64和实时时钟芯片PCF8563。然后阐述了系统软件设计开发工具的选择,重点对读卡过程的各个程序软件实现,以及用软件法实现对EEPROM存储的刷卡记录进行读写;除此之外,对串口通信设计以及系统通信协议做出了具体详细的介绍。 本文在介绍系统硬件和系统软件后,给出了系统的主要操作界面;最后对本项目进行了工作总结,分析了非接触式IC卡技术和智能门禁系统的未来发展前景。更多还原

【Abstract】 The contactless IC card technology is a new technology in recent years. It is a technology that combines wireless identify technology with the IC card technology, and successfully solves passive (no power supply in card) and contactless problem, which is a breakthrough in the field of electronic device. With the development of social economy and science technology, the contactless IC card technology has been broadly applied by all kinds of trades, specially such as mass transit, wireless communication, identify, finance trade and safety-defend etc. Entrance guard system is a digitization management system, which manages personnel in and out. The contactless IC card becomes the mainstream of entrance guard system because of its higher security, better convenience and performance price ratio.The paper firstly introduces the technological development background and the current application situation for IC card, analyzes with emphasis the technology specialty and the application direction of contactless IC card. Then operational principle of contactless IC card is discoursed by studying on radio frequency identification technology. Mifare1 contactless IC card used in this system is briefly introduced, and the function and security performance of mifare1 card is analyzed. This paper elaborated the design goal and the main function would be realized in the system, and presented the structure and security mechanism of entrance guard system.The paper describes in detail the hardware and software design of the system. Aimed at the choice of various chips with emphasis, the micro-processing module PIC16F876, the read-write module MF RC500, the memory module AT24C64, and the communication module RC232/485 as well as the clock circuitry of this system had been analyzed concretely. Then the paper explains the choice of development tools for system design, the program of read-card procedure, the design of serial communication and the communication protocol of the system. After introducing the hardware and software of the system, the interface of the system running is given. Finally the paper summarizes the research course, and advances the prospect of contactless IC card and intelligent entrance guard system.更多还原