RFID

RFID stands for radio-frequency identification and describes a technology that transmits data contactlessly via radio waves. This makes it possible to clearly assign, track, and identify tagged objects. An RFID system always consists of an RFID reader (also known as RFID reader and writer), and an RFID transponder (also known as RFID tag). The transponder serves as a data carrier and is attached to the object to be identified. The RFID reader first emits an electromagnetic field in the direction of the transponder. The antenna of the RFID transponder receives the electromagnetic waves, which are then converted into electrical energy and supply the RFID chip within the transponder with power. The RFID chip in turn sends a signal back to the RFID reader, which interprets and processes the information received. In this way, information can be read out and described.