The RFID system in the UHF band has the advantages of long operating distance, fast communication speed, low cost and small size, and is more suitable for applications in the future logistics and supply chain fields. This paper designs the corresponding interface circuit for some hardware modules of RFID and combines them into a practical ARM-based RFID reader with an operating frequency of 850-930 MHz and an effective reading distance of 8 m. The experiment shows that the developed product runs stably and has good results.
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