Radio Frequency Identification (RFID)
Radio Frequency Identification (RFID) is a technology that uses radio waves to automatically identify and track objects. RFID systems typically consist of a reader device that emits radio waves, and an RFID tag attached to the object being tracked. The tag contains a small electronic circuit and antenna that responds to the radio waves emitted by the reader, allowing the reader to read the information stored on the tag.
RFID technology can be used for a variety of purposes, such as tracking inventory in retail stores, tracking assets in a supply chain, and tracking pets or livestock. It can also be used for access control and security purposes, such as in keyless entry systems for buildings or vehicles. RFID systems can operate at different frequencies and with different protocols, depending on the specific application and requirements.