| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent delay in transmission of a fire signal by restraining loads on a communication unit of a display unit and a signal line at a time of accumulation processing in a receiver comprising a line control unit and the display unit.SOLUTION: A fire receiver 1 comprises: a first notice processing unit 22a that returns a restoration command in response to first notice after elapse of a prescribed waiting time when the first notice on a fire signal has been received; and a second notice processing unit 22b that determines there is a fire if second notice on the fire signal is received before elapse of a prescribed monitoring time from return of the restoration command, and starts fire display relative to the second notice.</p> |
