Originally in the field of technology, transponders are electronic modules that can transmit information and reply information. In recent years, due to the rapid development of radio frequency technology, transponders have a new meaning and meaning, and are also called smart tags or tags. Smart Labels are, to be precise, an innovation in RF tags that consist of sticky labels and ultra-thin RF tags. Smart tags combine RF technology with the convenience of flexible label printing. Smart tags with read and write capabilities can be programmed multiple times, following the coding rules at the time the tag was originally created.