RFID

代码说明：

  RFID是射频识别技术的英文(Radio Frequency Identification)的缩写，射频识别技术是20世纪90年代开始兴起的一种自动识别技术，射频识别技术是一项利用射频信号通过空间耦合(交变磁场或电磁场)实现无接触信息传递并通过所传递的信息达到识别目的的技术。 (RFID is radio frequency identification technology in English (Radio Frequency Identification) stands for radio frequency identification technology is the 20th century, the rise of the 90s an automatic identification technology, radio frequency identification technology is a radio frequency signal through space coupling (alternating magnetic field or electromagnetic field ) to achieve non-contact information transmission and pass the message to identify the purpose of the technology.)