Radio Frequency Identification
Identify Direct. Ltd are agents for Datamars S.A. We specialise in the RFID for laundry and textiles industry. Datamars S.A website.
An RFID system comprises a reader, its antenna and transponders (tags, RFID cards) that carry the data. The reader transmits a low-power radio signal through its antenna, which is received by the tag via its own antenna and used to power an integrated circuit (chip). Using the energy it gets from the signal when it enters the radio field, the tag will briefly converse with the reader for verification and exchange data. Once the data is received by the reader, it is then sent to a controlling computer for processing and management.
Types of RFID tags
RFID tags come in three general varieties: passive, active or semi-passive (also known as battery-assisted). Passive tags require no internal power source (they are only active when a reader is nearby to power them), whereas semi-passive and active tags require a power source, usually a small battery.
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