DISASTER PREVENTION SYSTEM

PROBLEM TO BE SOLVED: To provide a disaster prevention system capable of reducing misinformation caused by a transient phenomenon, a decline in function of a fire detector, etc. SOLUTION: In the disaster prevention system including a disaster prevention receiving panel and a plurality of fire detectors, the disaster prevention receiving panel includes: a signal pulse receiving means for receiving from the fire detector a signal pulse corresponding to a physical phenomenon detected by the fire detector; a determination means for determining whether the signal pulse received from the fire detector is a signal pulse caused by a fire or a signal pulse caused otherwise than by the fire; and an accumulation time changing means for sounding a fire alarm after elapse of predetermined accumulation time if the received signal pulse is determined to be the signal pulse caused by the fire, while changing the accumulation time for the fire detector, based on a pulse interval of the received signal pulse, if the received signal pulse is determined to be a signal pulse caused otherwise than by the fire. COPYRIGHT: (C)2011,JPO&INPIT