| 摘要 |
PROBLEM TO BE SOLVED: To ensure stable radio communication performance in a sensor node. SOLUTION: This sensor node includes: a radio communication circuit and a sensor, wherein data measured by a sensor is transmitted by radio communication, the sensor node further includes a first board BO2 where an antenna ANT1 connected to the radio communication circuit is disposed, a case CASE1 storing the first board BO2 in the interior, and a band fitted to the case CASE1 to fix the case CASE1 to the skin, and the antenna ANT1 is disposed on the upside of the case CASE1 in the direction of twelve o'clock in a wrist watch. COPYRIGHT: (C)2007,JPO&INPIT
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