Tunnel risk avoiding early warning system

Abstract

The invention relates to a tunnel risk avoiding early warning system. The system comprises a video monitoring unit, a driving unit and a movable early warning device; the video monitoring unit is usedfor shooting a global image in a tunnel and identifying an accident point in the tunnel and position information of the accident point from the global image; the driving unit is used for providing power for the early warning device, so that the early warning device moves to a corresponding position of the accident point in the tunnel, and the driving unit controls power output of itself accordingto the position information of the accident point; and the early warning device is used for prompting vehicles running in the tunnel to pay attention to avoiding the accident point in the tunnel. According to the tunnel risk avoiding early warning system of the invention, the video monitoring unit is used for identifying the accident point and the position information thereof from the tunnel image; the power output of the driving unit is controlled according to the position information of the accident point, so that the early warning device can timely and accurately move to the position corresponding to the accident point, a driver can know the information of the accident point in advance, and traffic accidents or traffic jams are avoided.

Description

technical field [0001] The invention relates to the technical field of tunnel traffic safety, in particular to a tunnel danger avoidance warning system. Background technique [0002] Tunnel is an important road traffic mode in the road system in our country, and its proportion in urban roads is getting higher and higher. The tunnel improves the road system and has the advantages of less land occupation, no damage to the ground environment, shorter driving mileage, and less impact from rain, snow, hail and other severe natural weather. Generally, the design speed is relatively fast, which can ensure the smooth and continuous driving of vehicles. It has made great contributions to the development of transportation and economy. As a special structure, tunnel has many advantages, but at the same time, it also has disadvantages such as prone to accidents, high degree of damage, and difficult to deal with. [0003] As a special road form, the tunnel section belongs to the abrupt...

AI Technical Summary

Problems solved by technology

In terms of driving environment, both sides and the top of the tunnel are closed, and the driving environment is oppressive and monotonous; in terms of lighting facilities, low-level tunnels have no lighting facilities, while high-level tunnels and urban tunnels use artificial lighting, but the difference in internal and external illuminance is large, causing The driver's visibility is poor; in terms of driving sight distance, due to structural factors such as tunnel plane alignment and longitudinal slope, the driving sight distance in the tunnel is poor, and there are visual safety blind spots

This special traffic environment makes the tunnel section often become a traffic accident-prone section. Accident vehicles, broken down vehicles or dropped objects stop moving in the clear driving zone of the tunnel and occupy the lane space. However, due to the unique environment of the tunnel, rear It is difficult for an incoming vehicle to detect the situation ahead and respond to the specific situation in advance, and the speed of driving in the tunnel is fast, which can easily cause secondary accidents, and the consequences are far more serious than primary accidents

After the accident, the vehicles coming from the same lane at the rear failed to detect the accident and changed lanes in advance, but slowed down at the location adjacent to the accident site to find a suitable opportunity to change lanes, which had a great impact on the traffic efficiency of the original lane and adjacent lanes , can easily cause serious traffic congestion

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