Title:
DISASTER PREVENTION SYSTEM AND FIRE DETECTOR
Document Type and Number:
Japanese Patent JP2023134692
Kind Code:
A
Abstract:
To provide a disaster prevention system that can suppress a non-fire alarm by determining a reliability of a fire detector which has transmitted a fire signal.SOLUTION: In a tunnel disaster prevention system, a fire detector 12 connected to a disaster prevention receiver 10 to monitor a fire in a detection area is configured to: determine that there is a failure sign when the fire is determined in at least one fire determination stage of a plurality of fire determination stages for determining the fire, but the fire is not determined in any of remaining fire determination stages; determine its own reliability based on the number of occurrences of failure signs, which is the number of the failure signs determined; and determine that its own reliability has decreased when the number of occurrences of failure signs reaches a predetermined reliability determination accumulating condition, for example, when the number of occurrences of failure signs reaches a predetermined number of 2 or more.SELECTED DRAWING: Figure 1
Inventors:
SUGIYAMA YASUNORI
MATSUKUMA HIDENARI
MATSUKUMA HIDENARI
Application Number:
JP2023116420A
Publication Date:
September 27, 2023
Filing Date:
July 18, 2023
Export Citation:
Assignee:
HOCHIKI CO
International Classes:
G08B17/00; G08B17/10; G08B29/14
Attorney, Agent or Firm:
Susumu Takeuchi
Aiki Takeuchi
Aiki Takeuchi