| 摘要 |
<p>A method of determining failure of an RFID label reader comprises: a) polling a reference radio frequency identification (RFID) label located adjacent to an RFID label reader by the RFID label reader; and b) issuing an alert to a computer indicative of a failure of the RFID label reader if the RFID label reader fails to receive a response from the reference RFID label.
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