| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sprinkling system capable of wirelessly operating a plurality of sprinklers at the same demolition site.SOLUTION: There is provided a sprinkling system which consists of a single transmitter 30 and a plurality of sprinklers 2a, 2b, 2c, and 2d, in which each sprinkler has a receiver, a sprinkler nozzle, and direction changing means, and is capable of wirelessly changing a sprinkling direction, the transmitter is capable of transmitting a signal having two states in a pair by an electromagnetic wave of a single frequency, the receiver is capable of receiving the electromagnetic wave transmitted from the transmitter each signal and decomposing into two states, the transmitter and the receiver are capable of transmitting/receiving two pairs or more of identification signals other than a principal signal which controls the sprinkling direction, a sprinkler which functions corresponding to a combination of identification signals transmitted from the transmitter is identified, and direction changing means of the identified sprinkler becomes controllable by the principal signal transmitted from transmitter.</p> |
