WIRELESS IC TAG READER/WRITER, WIRELESS IC TAG SYSTEM AND WIRELESS IC TAG DATA WRITING METHOD

摘要

PROBLEM TO BE SOLVED: To measure temperature of a cold storage warehouse 20 storing perishable food 10 stuck with an RFID tag 200, and to write it into the RFID tag 200 in real time.

SOLUTION: A temperature processing part 140 of this RFID tag reader/writer 100 measures the temperature at prescribed time intervals by use of a temperature sensor 150, and writes the measured temperature into the RFID tag 200 in real time by use of a writing part 130. The RFID tag reader/writer can be connected with an external temperature sensor instead of incorporating the temperature sensor 150.

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