RFID stands for Radio Frequency Identification. It is a technology that uses radio waves to wirelessly transmit data for the purpose of identifying and tracking tags attached to objects. RFID systems typically consist of tags (or transponders), which are attached to objects, and readers (or interrogators), which read the tags via radio waves.
The basic components of an RFID system include:
Tags (Transponders): These are small electronic devices that consist of a microchip and an antenna. Tags store unique identification data and can transmit this data to an RFID reader when activated by radio waves.
Readers (Interrogators): RFID readers emit radio waves to communicate with RFID tags. They capture data from the tags' responses and send it to a computer system for processing.
Antennas: Antennas are used by both the RFID tags and readers to transmit and receive radio signals.
RFID technology is used in a variety of applications across industries for purposes such as inventory management, asset tracking, access control, payment systems, and transportation logistics. It offers advantages like automation, improved accuracy, efficiency, and the ability to track items in real-time without direct line-of-sight.
There are different types of RFID systems, categorized by the frequency bands they use (low frequency, high frequency, ultra-high frequency) and the ways in which tags are powered (passive, active, or battery-assisted passive). Each type has specific characteristics and applications suited to different operational needs.
