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Microwave and Radio-Frequency Technologies in Agriculture by Peter Farrell, Mohan V. Jacob, Graham Brodie

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28 RFID Systems

Although bar codes and bar code readers have been used for some time to provide quick computer based identification, the technology needed to support these systems is older and in many cases limiting. Radio frequency identification (RFID) tags are intelligent devices that can be attached to or implanted in almost anything and are being used to track products through the supply chain. RFID tags are an improvement over bar codes because the tags have read and write capabilities. Data stored on RFID tags can be changed, updated and locked (Bonsor and Fenlon 2014). RFID was originally developed for short-range product identification, typically covering the 2 mm - 2 m read range (Ruiz-Garcia 2011).

In agriculture RFID tags have been ...

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