Title:
ROAD TUNNEL FIRE DETECTION SYSTEM AND ROAD TUNNEL FIRE DETECTION METHOD
Document Type and Number:
Japanese Patent JP2022147932
Kind Code:
A
Abstract:
To provide a road tunnel fire detection system capable of early detecting a fire by organically combining a plurality of types of photographed images such as images photographed by an infrared imaging camera and a visible light imaging camera.SOLUTION: A road tunnel fire detection system comprises: a plurality of infrared imaging cameras 110 installed at a plurality of locations in a road tunnel; a plurality of visible light imaging cameras 120 installed at the plurality of locations in the road tunnel; and combination type fire detection means 140 for combining information from both of the captured images to detect a fire. An imaging angle changing device 111 for changing an imaging angle is provided for each of the infrared imaging cameras 120, an imaging angle changing device 121 for changing an imaging angle is provided for each of the visible light imaging cameras 120, and an angle change control section 130 is provided for transmitting an angle change signal for changing the imaging angle. The combination type fire detection means 140 interlocks with fire point candidate detection means 150 and fire occurrence point candidate detection means 160, and organically combines a plurality of types of captured images to detect a fire at an early stage.SELECTED DRAWING: Figure 1
Inventors:
NAKAHORI ICHIRO
TAKEGAKI MORIGAZU
SAKAGUCHI TOSHIAKI
TAKEGAKI MORIGAZU
SAKAGUCHI TOSHIAKI
Application Number:
JP2021049410A
Publication Date:
October 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
SOHATSU SYSTEM KENKYUSHO KK
International Classes:
G08B17/00; G08B17/12
Attorney, Agent or Firm:
Michiaki Nagai