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

A visibility and safety technology, applied in the arrangement of variable traffic instructions, traffic flow detection, etc., can solve problems that affect traffic safety, poor effect, unfavorable on-site warnings, etc., to achieve the effect of ensuring driving safety

Inactive Publication Date: 2020-09-18
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment 1

[0034] Such as Figure 1-Figure 5A road safety speed limit reminder system and method based on visibility analysis shown, including road surface 1, camera 2, signboard 3, support tube 4, support pole 5, loudspeaker 6, identification icon 7, wireless data transmission module 8, Protective shell 9, central computer 10, wireless receiving module 11, display screen 12, there are many sets of identification groups in each road section above the road surface 1, and each identification group refers to a camera 2 and a signboard set according to a preset distance. 3 and a display screen 12, the camera 2 and the display screen 12 are fixedly connected to the road surface 1 through the vertical support tube 4, the signboard 3 is fixedly connected to the road surface 1 through the pole 5, and the camera 2 and the signboard 3 The height of the center is the same, and the camera 2 side is integrated with a wireless data transmission module 8, and the camera 2 is connected to the wireless d...

Embodiment 3

[0053] A method for prompting road safety speed limit based on visibility analysis, which uses the aforementioned system for prompting road safety speed limit based on visibility analysis, and is characterized in that it includes the following steps.

[0054] (1) Installation steps: set multiple sets of identification groups in order on one side of the road surface edge within a certain length of a road section, and in each identification group, a camera 2, a signboard 3 and a display screen 12 are arranged according to a preset distance, The heights of the center of the camera 2 and the identification plate 3 are the same.

[0055] (2) Step of taking pictures: the camera 2 takes pictures of the identification plate 3 at intervals of 40 minutes, and the picture information taken is transmitted to the central computer 10 through the wireless data transmission module 8 .

[0056] (3) Processing steps: the central computer 10 receives the photo information transmitted by multiple...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/04G08G1/09
CPCG08G1/04G08G1/09
Inventor 李光李敏李忠彬郑来港
Owner SHANDONG JIAOTONG UNIV
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