摘要
设计一种能从射频识别(RFID)卡读取数据,而后又仿真磁卡格式输出的模块,借助这种模块,能在不改变原有应用系统的基础上,将系统的磁卡替换为RFID卡.本文介绍的模块选择H4001作为替代磁卡的RFID卡,模块本身则主要由天线、非接触式射频卡读写基站芯片U2270B和单片机AT89C2051构成.在介绍应用电路的同时,分析了RFID卡、磁卡的相关编码格式,提出实现RFID卡信息读取、磁卡仿真输出的方法和步骤,并给出了相应的程序流程图.
To replace the magnetic card with radio frequency identification （RFID） card without wholly modifying the previous application system, it is necessary to employ a unit which can read information from RFID card and output data emulating that in ABA magnetic card format. The unit working together with RFID card H4001 mainly consists of contactless RF IC card read/write base station U2270B, the antenna and MCU AT89C2051. A circuit in the unit was introduced, and the relative encoding format in the RFID card and the magnetic card was described and analyzed, then a practical approach was presented for reading RFID card, transforming data into ABA magnetic card format and outputting data, followed by chief program flow chart.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2007年第4期435-439,共5页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
关键词
射频识别卡
U2270B
单片机
磁卡
radio frequency identification （RFID） card
U2270B
MCU
magnetic card
