Intelligent highway mist zone guiding system

Abstract

The invention discloses an intelligent highway mist zone guiding system and belongs to the technical field of road traffic safety. The intelligent highway mist zone guiding system comprises a front end node controller, a variable message sign, a speed limit sign, a vehicle flowrate detector, a node controller, visibility detection controllers, cameras, guiding node controllers, vehicle detectors, alarm devices and induction lamps. According to the intelligent highway mist zone guiding system, expensive visibility detectors are replaced with the cameras which are arranged at a certain interval in an agglomerate fog-prone zone, ultrahigh frequency radio frequency identification technologies are used for detecting a vehicle flowrate and vehicle positions, vehicles are prompted to keep a low speed and a safe interval via an acousto-optic alarm mode when vehicle-to-vehicle distance is too small, traffic accidents can be effectively prevented, Zigbee short range wireless information transmission technologies are adopted, workload of on-site system construction can be reduced, and system cost can be lowered. Via use of the intelligent highway mist zone guiding system, safety of vehicles running in conditions of low visibility weather, and traffic accidents can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of road traffic safety, and relates to an intelligent fog area guidance system for expressways. Background technique [0002] With the rapid growth of our country's national economy, the construction of highways has also achieved unprecedented development. However, while the expressway has become an important factor to promote the rapid development of the national economy, the ever-increasing incidence and death rate of expressway traffic accidents have also brought many adverse effects on the safety of people's lives and property and the stable development of the social economy. At present, traffic accidents caused by poor forecasting of meteorological conditions and inadequate countermeasures, reduced visibility due to heavy fog, insufficient safety line of sight, and excessive speed account for a large proportion of the total traffic accidents on expressways, especially group accidents. For the problem o...

AI Technical Summary

Problems solved by technology

The disadvantage of the first preventive measure is that the cameras installed at equal intervals on both sides of the expressway or in the middle isolation zone may not be exactly located in the randomly occurring cloud fog area, so the cloud cloud cannot be detected in time

In addition, vehicles that suddenly enter the foggy area during driving will be unable to see the road ahead due to low visibility, so traffic accidents such as rear-end collisions are likely to occur

The shortcoming of the second preventive measure is that vehicles entering the foggy area, due to low visibility, the distance between horizontal vehicles cannot be seen clearly, therefore, traffic accidents such as collisions are also prone to occur during driving

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