RFID读写器的设计  

Design of RFID ReaderWriter

作　　者：田径[1] 储海兵[1] 

机构地区：[1]东南大学自动化学院,江苏南京210096

出　　处：《现代电子技术》2009年第1期54-57,共4页Modern Electronics Technique

摘　　要：为了掌握RFID技术并应用,介绍一个基于U2270B的125 kHz的射频卡读写器。它主要用软件实现射频信号的调制和解调,进而实现了对Temic卡读和写操作,且利用CH375芯片实现系统的USB通信及数据传输,及利用SD卡实现数据及原始数据库存储,利用SD卡桥接芯片W86L388D实现简单的SD卡SD模式通信操作。该读卡器在解决实际问题时取得了很好的效果,相对于传统条形码识别有巨大优势,且引入USB和SD技术。To master and apply the RFID technique,this paper designs a RFID reader- writer based on U2270B radio frequency card. It implements demodulation and modulation of radio signal mainly by software to realize the readout and writing process of Temic card, USB communication and data transmission by chip CH375 and the storage of data and database by SD Card. This method successfully solved identification problems. The key techniques and innovations of this paper include that RFID reader has more advantages than bar code reader. And it introduce USB technique and SD technique.

关 键 词：RFID USB SD U2270B CH375 W86L388D Temic EM4100 

分 类 号：TN919[电子电信—通信与信息系统]