Early warning system and early warning method for expressway cloud fog based on line-of-sight monitoring

Abstract

The invention relates to the technical field of traffic monitoring, in particular to a highway agglomerate fog early warning system based on intervisibility distance monitoring and an early warning method thereof. The highway agglomerate fog early warning system comprises a highway agglomerate fog early warning detection device and a server. The highway agglomerate fog early warning detection device comprises a laser emitting module, a laser receiving module, a control module and a data transmission module. The laser emitting module and the laser receiving module are oppositely arranged on the two sides of a highway. The highway agglomerate fog early warning detection device is in communication with the server through the data transmission module. The early warning method includes the step that the laser receiving module is used for receiving light intensity data to calculate an intervisibility distance, the step that the intervisibility distance is compared with a greasy weather traffic safety early warning threshold value, and the step that the server issues early warning information. By means of the highway agglomerate fog early warning system based on intervisibility distance monitoring and the early warning method thereof, agglomerate fog monitoring of highway narrow strip-shaped space can be achieved, the current intervisibility distance can be obtained automatically and accurately, corresponding early warnings are given out, and thus highway traffic safety is improved.

Description

technical field [0001] The invention relates to the technical field of traffic monitoring, in particular to an expressway fog early warning system based on line-of-sight distance monitoring. Background technique [0002] The important traffic characteristics of expressways are fast speed and heavy traffic volume. Once a traffic accident occurs, the intensity will be relatively large. Fog is one of the worst weather factors affecting expressway traffic. Usually in low-lying mountainous areas and river valley areas, due to high air humidity, low wind speed, and large temperature difference between day and night, clusters of fog are easy to form. The formation of group fog is different from the formation of large-scale advection fog and radiation fog. It is difficult to predict and has great harm to the safe operation of expressways. [0003] In recent years, there have been some studies at home and abroad on fog monitoring and forecasting, traffic safety operation monitoring ...

AI Technical Summary

Problems solved by technology

At present, the expressway management department can only adopt negative methods such as road closures and traffic bans to manage the period when the fog occurs. Although the occurrence of traffic accidents is prevented, the traffic capacity of the expressway is sacrificed, the transportation efficiency is reduced, and the owner of the expressway suffers. huge economic loss

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