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Title:
FIRE ALARM SYSTEM, SENSOR, AND CONTROL METHOD
Document Type and Number:
Japanese Patent JP2020133195
Kind Code:
A
Abstract:
To provide a fire alarm system capable of appropriately unlocking in an emergency according to a fire occurrence state.SOLUTION: A fire alarm system, which includes a receiver, a first device connected to the receiver and transmitting a fire signal relating to a fire to the receiver in response to a human operation, and a second device for transmitting the fire signal to the receiver under a condition different from the human operation, is configured such that a plurality of the first devices and the second devices can be connected to the receiver; and the receiver includes a determination unit that is configured to, when receiver receives the fire signal from either the first device or the second device, based on a determination rule according to whether or not the fire signal is received from a non-transmission source device different from the transmission source device which is the transmission source of the fire signal, determine whether or not an emergency unlocking, which is performed in an emergency, is to be performed in a predetermined area corresponding to the transmission source device.SELECTED DRAWING: Figure 2

Inventors:
TONOMURA TOSHIAKI
Application Number:
JP2019026701A
Publication Date:
August 31, 2020
Filing Date:
February 18, 2019
Export Citation:
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Assignee:
HOCHIKI CO
International Classes:
E05B65/10; E05B45/06; E05B49/00; G08B17/00
Attorney, Agent or Firm:
Yasushi Matsunuma
Kenichi Kawabuchi
Naoyuki Takada