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Radio-frequency identification

1:47

RFID Technology Explained

2:30

What is RFID and How Does it Work?

2:51

What is RFID? RFID EXPLAINED

3:00

What is RADIO-FREQUENCY IDENTIFICATION? What does RADIO-FREQUENCY IDENTIFICATION mean?

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Radio frequency identification (RFID) technology

Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. The tags contain electronically-stored information. Passive tags collect energy from a nearby RFID reader's interrogating radio waves. Active tags have a local power source and may operate hundreds of meters from the RFID reader. Unlike a barcode, the tag need not be within the line of sight of the reader, so it may be embedded in the tracked object. RFID is one method for Automatic Identification and Data Capture (AIDC).