Fire event detection method in expressway tunnel based on video detection technology

A highway and video detection technology, applied in the field of traffic detection, can solve the problems of poor application effect, in its infancy, and high false alarm rate
CN103400111BActive Publication Date: 2017-02-08重庆大学溧阳智慧城市研究院
1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
重庆大学溧阳智慧城市研究院
Publication Date
2017-02-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of traffic detection and discloses a method for detecting a fire accident on an expressway or in a tunnel based on a video detection technology. The method comprises the following steps: extracting a picture from an obtained video according to a preset frame rate; utilizing the obtained picture to establish a tunnel background model; extracting a foreground target image from the picture with a background differentiating method; dividing the picture into a background part and a foreground part, and respectively updating the background part and the foreground part in different updating rates; analyzing the foreground target of the image in a detection period, and judging whether a suspected static target exists or not according to time sequence information; and if the suspected static target exists, determining a suspected flame region in combination with the moving and static features of flames, and finally analyzing the suspected flame region of a sequentially extracted image according to flame judging rules and judging whether the fire accident exists or not. The method has the advantages of simple detection algorithm, small calculated amount, capability of shortening processing time, capability of improving detection efficiency, and capability of reducing the influence of the complicated scenic illumination condition of the tunnel on fire detection.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of traffic detection, in particular to a method for detecting fire incidents in expressway tunnels based on video detection technology. Background technique

[0002] With the rapid development of economic construction, the operating mileage of expressways has increased rapidly, the number of vehicles passing through expressways has increased sharply, and the safety hazards of expressway tunnels have also increased. As an important part of the transportation system, expressway tunnels have particularly prominent traffic safety issues. Once a fire or other accident occurs in the tunnel, it will not only cause serious property losses, but may also threaten the lives of passengers. Therefore, it is of great significance to monitor expressway tunnel fire incidents and give early warning to maintain tunnel traffic safety.

[0003] At present, commonly used fire monitoring technologies are divided into two categor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More