RFID technology uses radio waves to identify objects remotely. The design and operation of the system are simple and effective. Small devices, known as tags, are attached to objects and allow them to be identified automatically. A tag consists of an electronic circuit with stored data and a transceiver antenna. The data is recorded and read using radio waves generated by an RFID reader, which has its own antenna and processes the received information.
RFID tags contain a microchip and an antenna, which together enable the reception and transmission of information to an RFID reader. These readers emit radio waves that activate the tag and then read and decode the data from it. This data can then be sent to a central computer system for further analysis. RFID operates at different frequencies, and the choice of the appropriate one depends on the application, range, and working environment.

