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Highway strong crosswind section speed early warning control method and system

A control method and early warning system technology, which is applied to road vehicle traffic control systems, traffic control systems, alarms, etc., and can solve problems such as poor practicability, single consideration factors, and large application limitations

Active Publication Date: 2020-04-21
北京中交华安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in the existing achievements, such as single consideration factors, large application limitations, poor practicability, etc.

Method used

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  • Highway strong crosswind section speed early warning control method and system
  • Highway strong crosswind section speed early warning control method and system
  • Highway strong crosswind section speed early warning control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The present embodiment provides a speed warning control method for a section of highway with strong cross wind, the method includes the following steps:

[0064] S1, establish a speed limit optimization model for the strong cross wind section of the highway based on multiple constraints, and obtain the safe driving speed limit value of the vehicle;

[0065] S2. According to the established speed limit optimization model, formulate a variable speed limit control strategy: calculate the speed limit value of each vehicle type under the current crosswind state for different vehicle types, and select the relatively minimum speed limit value of each vehicle type as the road section speed limit value;

[0066] S3, comprehensively considering the operating efficiency, stability and safety of the vehicle, updating the speed limit value of the road section in step S2 in real time;

[0067] S4, according to the execution speed limit value updated in step S3 in real time, an early...

Embodiment 2

[0120] This embodiment discloses an early warning system that implements the early warning method in Example 1. The early warning system of the present invention incorporates a speed limit optimization model and a control strategy based on multiple constraints, and is composed as follows: Figure 4 As shown, it is mainly composed of three major modules, which are information detection module, information processing module, and information early warning release module. When working, the schematic diagram of the working principle is as follows: Figure 5 As shown, the information monitoring module is composed of an ultrasonic wind sensor detector and supporting auxiliary facilities, which are mainly used for real-time detection of the information of the strong cross wind on the road to obtain data such as wind speed and wind direction, and send the data to the information processing module; information processing As the core "brain" of the system, the module is composed of a cen...

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Abstract

The invention discloses a highway strong crosswind section speed early warning control method and a highway strong crosswind section speed early warning control system, which relate to the technical field of traffic early warning. The highway strong crosswind section speed early warning control system comprises an information detection module, an information processing module and an information early warning publishing module. According to the highway strong crosswind section speed early warning control method, stress analysis is carried out on sideslip and rollover conditions possibly generated by different vehicle models on a strong crosswind road section; a speed limit optimization model is established, and a highway variable speed limit control strategy under the influence of strong crosswind is formulated on the basis of the speed limit optimization model; and finally, an early warning system is designed and early warning levels are divided, thereby effectively guaranteeing safetyand stability of vehicles driving on a highway.

Description

technical field [0001] The invention relates to the technical field of traffic early warning, in particular to a speed early warning control method for a section of highway with strong cross wind. Background technique [0002] In recent years, extreme severe weather has occurred frequently in my country, and road traffic safety is increasingly affected by severe weather. Among them, the crosswind threatens the safety of driving on the highway due to its suddenness and concealment. When the vehicle is running on the road and is subjected to a large level of wind force perpendicular to the direction of travel, it will significantly affect the driving stability of the vehicle. When the wind force exceeds a certain level, the normal driving vehicle will face the risk of sideslip and rollover . However, in my country's northwest and coastal areas, there are many strong crosswinds, especially on flat highways, high fill and bridge sections, which will amplify the effect of cross...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/052G08B21/18
CPCG08G1/052G08G1/0125G08B21/182Y02T10/40
Inventor 韩晖文涛李洋洋廖文洲陈慧
Owner 北京中交华安科技有限公司
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