| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a shutter obstacle detection system capable of enhancing the safety of a shutter device by monitoring a failure in power supply to communication means for reception of a wireless type obstacle detection system.SOLUTION: A shutter obstacle detection system 30 includes: a seat plate switch 31 which detects an obstacle being present at an opening part 1; a transmitter 32 which transmits an obstacle detection state signal including information representing the detection state of an obstacle by wireless; a receiver 33 which receives the obstacle detection state signal by wireless; and an interlocking repeater 16 which performs opening/closing control over a shutter curtain 12 on the basis of the obstacle detection state signal. When detecting a failure in power supply to the receiver 33, the interlocking repeater 16 performs predetermined control over the shutter curtain 12.</p> |
