Radio frequency identification (RFID) technology, also known as radio frequency identification, is a communication technology that can identify a specific target without establishing mechanical or optical contact between the identification system and the specific target, and read and write related data through radio signals.

Conceptually, RFID is similar to barcode scanning. For bar code technology, it is to stick the coded bar code on the target and use a special scanning reader to transmit information from the bar code to the scanning reader by using optical signals. And RFID uses a special RFID reader and a special RFID tag that can be attached to a target, and uses frequency signals to transmit information from the RFID tag to the RFID reader.

ingredient

Transponder: It consists of antenna, coupling element and chip. Generally, tags are used as repeaters. Each tag has a unique electronic code attached to the object to identify the target object.

Reader: A device consisting of an antenna, a coupling element and a chip, which is used to read (and sometimes write) tag information. It can be designed as a handheld rfid reader or a fixed reader.

Application software system: it is application-layer software, which mainly processes the collected data for human use.