射频识别技术及其在室内定位中的应用 (RFID technology and its application in indoor positioning),Radio frequency identification technology and its application in indoor positioning applications (RFID technology and its application in indoor positioning)

HD 6P RFID 终端机、考勤卡钟 TCP/IP通讯接口程序 VB 源码-HD 6P RFID terminals, bell time cards TCP/IP communication interface program VB source