| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fire alarm system which can equalize power consumption of batteries of multiple fire alarms and can urge a person to take a prompt action on fault such as a failure in the fire alarms side. <P>SOLUTION: A fire alarm system 1 is constituted so that a plurality of battery-driven fire alarms 2 can cooperatively operate, each of the fire alarms 2 transmits an inspection signal per prescribed period of time according to a turn for transmitting the inspection signal stored in a storage part, and one of the fire alarms 2 not receiving the inspection signal transmits the inspection signal after prescribed delay time from an end point of the prescribed period of time when not receiving the inspection signal that should be transmitted by another of the fire alarms 2 in the previous turn of its turn. <P>COPYRIGHT: (C)2012,JPO&INPIT |
