| 摘要 |
PROBLEM TO BE SOLVED: To simply and readily cope with the change in a supervised area which requires increase in fire alarms. SOLUTION: Fire alarms 15-11 to 15-32 are connected to detector lines 18-1 to 18-3, lead out of a P-type receiver 10, and an alarm signal is transmitted at occurrence of a fire for outputting an alarm. In a warning area, wireless detectors 16-11 to 16-34, which transmit a telegram signal indicating fire alarming at detection of a fire, and electric wave relays 14-1 to 14-3, which relay the telegram signal from the wireless detectors are installed. Wireless receiving relays 14-1 to 14-3 are connected to the detector lines 18-1 to 18-3 from the P-type receiver 10; and when the fire alarming is discriminated from the received telegram, the alarm signal is transmitted to the P-type receiver 10 and an alarm is issued. COPYRIGHT: (C)2011,JPO&INPIT |
