| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To enable a communication confirmation operation to be easily performed in a radio type sensor device. <P>SOLUTION: A radio sensor device 10 has a temperature sensor 11, a light emitting diode 16, a processor 12, and a communication circuit 13. A server 30 receiving sensor data from the radio sensor device 10 periodically requests the sensor data from the radio sensor device 10. If the sensor data is received a predetermined number of times within a predetermined time for the request, the radio sensor device 10 is instructed to light the light emitting diode 16. The processor 12 of the radio sensor device 10 lights the light emitting diode 16 upon receiving the instruction. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
