| 摘要 |
PROBLEM TO BE SOLVED: To surely achieve the notification of a disaster prevention alarm such as a tsunami alarm by a disaster prevention signal received from city disaster prevention radio equipment or the like by arranging a plurality of interlock type alarms for detecting such abnormality as a fire, and for preferentially issuing an alarm.SOLUTION: A plurality of house alarms 100-1 to 100-2 are installed in a house, and when detecting a fire, one house alarm outputs a fire alarm indicating an interlock source, and transmits a fire interlock signal to the other alarm to allow it to output a fire alarm indicating an interlock destination. Also, when receiving a disaster prevention signal such as a tsunami alarm from city disaster prevention radio equipment 10, the house alarm 100-1 outputs a disaster prevention alarm, and transmits a disaster prevention interlock signal to the house alarm 100-2 to allow it to output a disaster prevention alarm. Also, when detecting a fire, and receiving the disaster prevention signal from the city disaster prevention radio equipment 10, the house alarm 100-1 outputs the fire alarm indicating the interlock source, and receives a fire interlock signal from the house alarm 100-2, and when receiving the disaster prevention signal from the city disaster prevention radio equipment 10, outputs the disaster prevention alarm. |
