| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fire alarm capable of performing alarm output based on information detected by various monitoring devices such as a crime prevention sensor and an environmental sensor. SOLUTION: The fire alarm includes: a fire detection circuit 7 which detects physical change based on a fire phenomenon to output a signal; a microcomputer 1 as a fire discrimination part which discriminates a fire based on an output signal of the fire detection circuit 7; an alarm tone control circuit 8 and a display lamp circuit 9 which output an alarm when being determined as the fire. The fire alarm includes a transmitting and receiving circuit 5 which transmits interlocking alarm signals to other fire alarms when being detected as the fire, receives interlocking alarm signals from other fire alarms, and receives operation signals from other monitoring devices. When the transmitting and receiving circuit 5 receives the operation signals, the alarm tone control circuit 8 and the display lamp circuit 9 output the alarm according to the operation signals. COPYRIGHT: (C)2011,JPO&INPIT
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