说明：  射频卡读写程序和读写器原理图,常用的射频卡读写器源程序,源程序和原理图均是最终应用的程序,该读卡器已经批量生产,性能稳定.
(RF card reader to read and write procedures and schematic diagram, commonly used in RF card reader source code, source code and schematics are finally application procedures, the reader has been mass production, stable performance.)