【作者】 陈博；

【导师】 刘开华；

【作者基本信息】 天津大学 ， 信息与通信工程， 2012， 硕士

【摘要】 射频识别（Radio Frequency Identification，RFID）技术是利用射频通信实现的非接触式自动识别技术。RFID技术主要利用了射频信号的空间耦合来实现非接触的信息传输。由于RFID技术具有非接触性以及可对多个物体同时识别等特性，它正被逐步广泛应用在生产和生活中的多个领域。本文开发了一款适用于航空智能电子铅封的RFID读卡器，可以完成相应航空智能电子铅封的读写操作。航空智能电子铅封以工作在13.56MHz的RFID标签为核心，片内可存储封存容器中的物品信息，在保证封存物品安全的同时，还可实现物品的信息化管理，解决了传统铅封管理难、安全性差等问题，有效提高了航空物流的管理水平与工作效率。论文首先介绍了RFID技术在国内外的发展和应用情况，并对RFID技术的基本结构、工作原理、检错与纠错算法、防冲突算法等进行了理论研究，分析了ISO/IEC15693和ISO/IEC14443两种工作频率为13.56MHz的RFID国际通用标准。在理论研究的基础上，提出了基于NXP CLRC632射频读卡芯片的RFID读卡模块的硬件设计方案。该芯片结合外围天线匹配电路、天线线圈及通信接口电路，可以与读卡器主控部分进行通信，实现对符合ISO/IEC15693或ISO/IEC14443标准的射频标签的操作。为满足读卡器高性能、低功耗、低成本的需求，提出了基于STM32系列微控制器的读卡器主控部分的硬件设计方案。该微控制器基于ARM Cortex-M3内核，包括人机接口、数据存储、数据通信等模块的设计方案。进行了读卡器PCB的设计，并采用了一系列手段改善了PCB的EMC性能。论文最后对读卡器系统进行了测试，测试结果表明读卡器可以支持ISO/IEC15693和ISO/IEC14443两种标准，读卡性能满足要求，同时可满足手持设备的工作需求。更多还原

【Abstract】 Radio Frequency Identification (RFID) is a kind of contactless automaticidentification technique which involves radio frequency technique. RFID techniqueuses the coupling of radio magnetic field to realize contactless communication.Featured with the unique contactless and simultaneous multi-object identification,RFID technique is more and more widely used in many fields in production and life.The RFID reader in the thesis is applied in the field of aviation, which can read andwrite corresponding smart electronic aviation seals. The smart electronic aviation sealtakes RFID tag which works at13.56MHz as the core. Goods information in thecontainer can be stored in the tag chip. At the same time of ensuring the safety ofgoods, the system can realize the informatization management. The seal solves theproblems of hard management and poor safety performance of traditional seals,increases the level of management and work efficiency of aviation logistics.The development and application status of RFID technique at home and abroad isfirstly introduced in the thesis. Besides, the basic structure, working principle,algorithms of error detection and error correction, algorithms of anti-collision ofRFID technique are studied. The common international standards of ISO/IEC15693and ISO/IEC14443whose working frequency is13.56MHz are analyzed. Hardwareof RFID reader module based on NXP CLRC632reader IC is designed on the basis ofthe theoretical analysis. The IC is able to communicate with the main control unit torealize the operation of RFID tags that are compatible with the standards of ISO/IEC15693or ISO/IEC14443combining with external antenna matching circuit, antennacoil and communication interface circuit. In order to meet the requirement of highperformance, low power and low cost in RFID reader, the main control unit of RFIDreader based on STM32microcontroller is designed. The microcontroller is based onARM Cortex-M3core. Modules of man-machine interface, data storage and datacommunication are designed. PCB of RFID reader is designed. A series of methodsare applied to improve the EMC performance of the PCB. Finally, the system of RFIDreader is tested. The result of system test shows standards of ISO/IEC15693and ISO/IEC14443are supported by the RFID reader and the performance of the readerachieves the requirement. Also the work need of handheld device is met.更多还原