Bend driving early warning method based on vehicular access synergy

Abstract

The invention discloses a bend driving early warning method based on vehicular access synergy. Firstly, visibility information at the position of an inlet of a bend is detected, and load information, speed information, license plate number information and model information of vehicles passing through the position which is 100m away from the inlet of the bend are detected. According to the vehicle model information, the vehicle load information, bend radius information and bend transverse slope angle information, a bend passing vehicle speed upper limit value corresponding to each vehicle is obtained, a corrected bend passing vehicle speed optimum speed limit value of each vehicle is finally obtained by the combination between the bend passing vehicle speed upper limit value of each before correction and the visibility information, and the bend passing vehicle speed optimum speed limit value and a corresponding license plate number are jointly sent to a variable speed limiting notice board to be displayed. The bend driving early warning method based on the vehicular access synergy has the advantages of being high in operating rate and reliability, providing the reliable information for a bend driving speed limit sign, effectively assisting a driver in avoiding possible side-turning accidents, ensuring driving safety, being universally applicable to the bend driving environment, overcoming the defect of the high cost of a vehicle-mounted early warning mode in traditional methods, and being high in implementation performance.

Description

technical field [0001] The invention belongs to the technical field of traffic safety, and relates to a safety monitoring method and device in the technical field of intelligent transportation, in particular to an early warning method for driving on a curve based on vehicle-road coordination. Background technique [0002] Due to the limitation of topography, some small-radius curves that are unfavorable to driving often appear in mountain roads or highway entrance and exit ramps, and some even have continuous sharp curves, which cause great hidden dangers to driving safety. According to the statistics of traffic accidents on different road alignments, it can be seen that although the number of traffic accidents and the number of fatalities on ordinary curves and sharp curves are less than those on straight roads, the number of deaths per bend accident is higher than that on straight roads. much. At present, expressways set the maximum speed limit for small passenger cars an...

AI Technical Summary

Problems solved by technology

At present, expressways set the maximum speed limit for small passenger cars and other vehicles, but ordinary roads adopt fixed and unified speed limit standards for all types of vehicles. This speed limit standard is not conducive to preventing traffic accidents, but also seriously affects curves. traffic efficiency

[0003] At present, most of the early warning algorithms for driving on curves are researched on anti-collision and anti-rollover and sideslip when driving on curves, and the system is installed on the car, and the road environment of the curve changes (for example, there is fog ahead that affects driving) When the driver's field of view), because there is no part to detect road information, the algorithm cannot respond to changes in the external environment, resulting in poor early warning effect

In addition, due to the relatively high cost of vehicle curve speed limit, the car curve warning system is generally only applied to some high-end cars at present, and each warning device is usually for a certain model, and it has not been found that different vehicles are used for cornering. speed limit device

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