Title:
防災設備
Document Type and Number:
Japanese Patent JP6951986
Kind Code:
B2
Abstract:
To provide a disaster prevention facility that can enable alarm contents to be securely audible by properly outputting a gas discharge warning sound and an emergency broadcasting sound by an emergency broadcasting facility when fire breaks out in a protection block covered by a gas-based fire extinguishing facility.SOLUTION: A broadcast control panel 36 outputs an emergency broadcasting sound for evacuation guidance from a loudspeaker 40 that is installed in a restricted area or a protection block 18 when a fire-report transferring signal is received from a fire-report receiving panel 30. A gas-based fire extinguishing control panel 16 outputs a gas discharge warning sound from a speaker 28 that is installed in the protection block when an alarm of a fire sensor 26 in the protection block is detected and the fire-report transferring signal caused by an alarm of a fire sensor 34 from the fire-report receiving panel in the protection block is received. A loudspeaker output control unit 100 of the gas-based fire extinguishing control panel 16 stops the gas discharge warning sound from the speaker 28 and outputs the emergency broadcasting sound from the loudspeaker 40 after outputting the gas discharge warning sound from the speaker 28 for a predetermined period of time in a state of stopping the emergency broadcasting sound from the loudspeaker 40.SELECTED DRAWING: Figure 1
Inventors:
Tonomura Kenaki
Application Number:
JP2018031472A
Publication Date:
October 20, 2021
Filing Date:
February 26, 2018
Export Citation:
Assignee:
Hochiki Corporation
International Classes:
G08B17/00; A62C37/00; G08B27/00
Domestic Patent References:
| JP1031769U | ||||
| JP2016036575A | ||||
| JP2004255117A | ||||
| JP2004310629A | ||||
| JP2003204596A | ||||
| JP62038184A | ||||
| JP6254176A |
Foreign References:
| KR1020070085192A |
Attorney, Agent or Firm:
Susumu Takeuchi