| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless state detecting system, simply added without requiring any large-scale work for the existing equipment, and detecting a change in state of a number of detection objects using one wireless receiver. SOLUTION: A wireless transmitter and a shielding means corresponding thereto are provided for the detection object having a fixed part and a movable part movably provided on the fixed part, and according to the movement of the movable part, the shielding means shields a radio wave transmitted by the wireless transmitter. In this configuration, a wireless receiver is installed at a position to receive the radio wave transmitted by the wireless transmitter provided on the detection object wireless state detecting system, whereby the possibility of receiving a radio wave transmitted by the wireless transmitter or a change in its receiving strength is watched to simply detect the state of the detection object. COPYRIGHT: (C)2009,JPO&INPIT
|
