| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wireless tag, a wireless tag reader/writer, a wireless tag information provision method and a wireless tag system, capable of reducing the communication time to quickly acquire data, by reducing the data amount read by the wireless tag reader/writer about the wireless tag loaded with a sensor. <P>SOLUTION: In this wireless tag system, the wireless tag reader/writer 200 transmits decision data to a decision means 104 of the wireless tag 100. The sensor 101 measures the temperature of a commodity attached with the wireless tag or the periphery of the wireless tag, and stores measured data in a sensor data storage means 102 as sensor data. The wireless tag reader/writer 300 transmits decision result demand to the decision means 104. The decision means 104 acquires the sensor data stored in the sensor data storage means 102, decides whether the sensor data are normal on the basis of decision data, and outputs a decision result to the wireless tag reader/writer 300. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
