Method and system for preventing secondary traffic accidents on highway

Abstract

The invention provides a method and a system for preventing secondary traffic accidents on a highway. The method comprises steps as follows: acquiring and comparing driving speeds of two front and rear adjacent motor vehicles on the same lane of the highway, calculating the distance value between the two vehicles when the driving speed of the rear vehicle is larger than that of the front vehicle,calculating the safe distance value between the two vehicles according to the driving speeds of the two vehicles, performing comparison to judge whether the distance value is smaller than the safe distance value, further judging whether the distance between the two vehicles is reduced to 0 if the distance value is smaller than the safe distance value, determining that rear-end collision happens totwo vehicles if the distance between the two vehicles is reduced to 0, generating a pre-warning message, acquiring a display device corresponding to the position where rear-end collision happens, andsending the pre-warning message to the display device for display. Early warning is realized when traffic accidents happen on a traffic accident frequent occurrence road section, safe travel of driving vehicles on the road section is guaranteed, secondary traffic accidents are avoided, a traffic management department is assisted in timely finding traffic accident information, and the accident handling efficiency of the traffic management department is improved.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a method and system for preventing secondary traffic accidents on expressways. Background technique [0002] At present, the total mileage of expressways in my country has reached more than 130,000 kilometers. With the rapid development of expressways, the time-space distance between provinces and important cities has been greatly shortened, and the inter-regional personnel, goods, technology and information have been accelerated. The speed of communication effectively reduces the cost of production and transportation, realizes the effective allocation of resources in a larger space, expands the market, and plays an important role in improving the competitiveness of enterprises, promoting national economic development and social progress. Today, the speed and convenience of expressways have also entered the lives of ordinary people, and are changing people's concept of time...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the prior art. When a traffic accident occurs on the expressway, the motor vehicle driving behind often cannot grasp the traffic accident in front in time and decelerates, resulting in the occurrence of secondary traffic accidents, and When a rear-end collision occurs, problems such as failure to detect and give early warning in time

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