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Judgment method of tunnel emergencies based on license plate recognition

A technology for emergencies and license plate recognition. It is applied in the traffic control system of road vehicles, traffic flow detection, instruments, etc. It can solve the problem of inability to take into account the tunnel traffic conditions, and achieve adaptability and management with strong pertinence and effective human resources. , stable and reliable operation

Active Publication Date: 2018-09-04
ANHUI SUN CREATE ELECTRONICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the actual problem is that relying on video surveillance technology can indeed allow traffic managers to observe real-time traffic conditions in tunnels; but when there are many video surveillance devices, traffic managers cannot take into account the traffic conditions of all tunnels, resulting in traffic congestion in tunnels. When an accident occurs, it is often not possible to carry out early warning and accident handling in time

Method used

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  • Judgment method of tunnel emergencies based on license plate recognition

Examples

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Embodiment 1

[0081] 1) Install the bayonet system at the entrance and exit of the tunnel to identify the license plate of the vehicle entering and exiting the tunnel, record and store the passing data of the tunnel, mainly including the vehicle license plate data, the time data of the vehicle entering the tunnel and the time data of the vehicle exiting the tunnel .

[0082] 2) According to the tunnel length and the minimum speed limit of the tunnel, the tunnel transit time threshold Tt is calculated by using the relationship model Tt=60L / V between the transit time and the tunnel length and speed.

[0083] The length of the target tunnel selected here is L=2km, the minimum speed limit of the tunnel is 50km / h, and the threshold of the tunnel transit time is:

[0084] Tt = 60 x 2 / 50 = 2.4 min.

[0085] Take a=2, to ensure that the bayonet can record enough license plates of vehicles entering and exiting the tunnel, and the value will not affect the subsequent comparison.

[0086] Obtain the...

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Abstract

The invention belongs to the field of tunnel traffic safety monitoring, and specifically relates to a tunnel emergency determining method based on license plate identification. The method includes the steps of installing, deploying and commissioning gate systems on a tunnel entrance and a tunnel exit, the gate systems acquiring, recording and storing data of vehicles passing the tunnel, calculating the passing time threshold Tt of the tunnel, determining an acquisition period, obtaining a sample set, calculating travel times of vehicles passing the tunnel, calculating average travel time of the vehicles, and determining the occurrence of an emergency in the tunnel. Passing vehicle data feedback and calculation through gate systems allow occurrence of an emergency in a tunnel to be know timely and accurately. Timely active early warning is realized, and effective escaping guiding information can be provided to passengers and drivers.

Description

technical field [0001] The invention belongs to the field of tunnel traffic safety monitoring, and in particular relates to a method for judging a tunnel emergency based on license plate recognition. Background technique [0002] Tunnels are important throats of expressway and urban road traffic, and are also prone to traffic accidents. The tunnel not only has a large amount of passing traffic, but also has a narrow space environment and large changes in light, and the exhaust gas emitted by cars is not easy to disperse, which will easily lead to deterioration of air quality in the tunnel and unclear vision, and there is a potential danger of traffic accidents. Once a traffic accident occurs in the tunnel, it will often cause huge loss of people's life, property and economy. In particular, the tunnel has strong sealing characteristics. Once an emergency such as a traffic accident occurs, traffic guidance and rescue work is more difficult than that of ordinary road sections....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/017G08G1/065
CPCG08G1/0137G08G1/017G08G1/065
Inventor 董婉丽邹娇胡涛杨灿孙晓静
Owner ANHUI SUN CREATE ELECTRONICS
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