A road safety speed limit prompt system and method based on visibility analysis

Abstract

The invention discloses a road safety speed limit reminding system and method based on visibility analysis. The road safety speed limit reminding system comprises a road surface, cameras, signboards,supporting tubes, supporting rods, loudspeakers, identification icons, a wireless data transmission module, protective shells, a central computer, a wireless receiving module and display screens; a plurality of identification sets are arranged in each road section above the road surface, and each identification set refers to the corresponding camera, signboard and display screen which are arrangedaccording to the preset distance; and the cameras and the display screens are fixedly connected with the road surface through the vertical supporting tubes, and the signboards are fixedly connected with the road surface through the supporting rods. The road safety speed limit reminding method based on visibility analysis is further included.

Description

technical field [0001] The invention relates to the technical field of road safety facilities, in particular to a system and method for prompting road safety speed limits based on visibility analysis. Background technique [0002] The change of the visibility value will directly affect the safety preview distance in road traffic, and then affect the safety of road traffic. In the existing descriptions of low visibility, most of them are for natural meteorological changes such as rain and fog, but in actual road traffic The factors that lead to reduced visibility in the field are far more than rain and fog. For example, seasonal burning, wind and dust, industrial pollution and other factors will cause local visibility to decrease. The low visibility formed by these factors together with rain and fog directly affects the safety of road traffic. The existing visibility detection equipment, especially the visibility detection equipment used in road traffic, basically focuses on ...

AI Technical Summary

Problems solved by technology

[0003] Due to seasonal burning, dust, industrial pollution, and frequent changes in weather and sandstorms in some areas, in some road sections with complex causes, many interference factors, frequent changes in visibility, and extremely variable heights, it is not necessary to carry out visibility reminders. Time-sensitive, the existing visibility prompts are often collected from some fixed equipment or network data, and the value given by it is often a single value within a day or half a day, which is very unfavorable for on-site warnings. For example, near a factory chimney is often Visibility is reduced due to exhaust gas, and at the same time, there is a lot of wind and sand in the area, and the visibility suddenly decreases due to wind and sand, but the visibility may return to normal immediately after the wind stops. This kind of complex on-site change, through a simple long-term single visibility warning, the effect is Very bad, if the scene is already highly visible and the warning broadcast is forced, it will have a counterproductive effect and affect traffic safety

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