Vehicle-road cooperative control system and method with tunnel speed early warning function

A vehicle-road coordination and control system technology, applied in the field of traffic safety and intelligent transportation, which can solve problems such as time-consuming benefits, no influence formula, and difficult-to-see distance safety inspection.

Inactive Publication Date: 2016-06-22
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2015, Liu Jianbei et al. "A Variable Speed ​​Limit Method Based on Safe Permissible Speed ​​on Rainy Highway", although the influence of road environment, sight distance and road surface condition factors on safe vehicle speed were considered, no specific impact formula was given. , cannot solve practical problems well
In addition, in the "Guidelines for Safety Evaluation of Highway Projects", only the influence of slope on the parking sight distance is considered, resulting in a large difference between the predicted speed and the actual driving speed, making it difficult to conduct sight distance safety inspections
Therefore, the prior art methods cannot solve the speed limit problem of tunnels well, and are time-consuming and ineffective, and cannot be adapted to various tunnel environments

Method used

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  • Vehicle-road cooperative control system and method with tunnel speed early warning function
  • Vehicle-road cooperative control system and method with tunnel speed early warning function
  • Vehicle-road cooperative control system and method with tunnel speed early warning function

Examples

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Embodiment Construction

[0048] In this example, if figure 2 As shown, a vehicle-road cooperative control system for tunnel speed warning, including: a vehicle-mounted subsystem, a roadside subsystem, and a terminal server;

[0049] The vehicle-mounted subsystem includes n vehicle-mounted devices; the n vehicle-mounted devices are installed on n vehicles respectively; the i-th vehicle-mounted device includes: the i-th data slope meter, the i-th communication device, the i-th eye tracker, the i-th An anemometer and the i-th storage device; 1≤i≤n;

[0050] The roadside subsystem includes m roadside devices; the m roadside devices include m range finders, m environment collectors and m gravity sensors, which are respectively set on the road where n vehicles are driving;

[0051] A road network database is set in the terminal server; the road network database contains the friction coefficient f of the road on which n vehicles are driving i,j and turning radius R j ;

[0052] The i-th eye tracker obta...

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Abstract

The invention discloses a vehicle-road cooperative control system and method with tunnel speed early warning function. The vehicle-road cooperative control system comprises a vehicle subsystem, a road side subsystem and a terminal server, wherein the terminal server extracts sight distance parameter, road gradient, distance from a vehicle to tunnel edges, wind speed, vehicle upwind area, wind resistance coefficient, man-vehicle total mass under a corresponding environment and corresponding friction coefficient and turning radius on corresponding driving road from the vehicle subsystem and the road side subsystem according to external environment, and determines the maximal safe driving speed of the vehicle in the road section in the detection scope of road side equipment according to obtained data so as to provide a real-time safe speed for a driver and realize speed early warning. Vehicles can be prevented from running onto an obstacle ahead, and traffic accident probability is reduced.

Description

technical field [0001] The invention relates to traffic safety and intelligent traffic technology, in particular to a tunnel speed early warning vehicle-road cooperative control system and a method thereof. Background technique [0002] With the development of economy, my country's investment in road construction has been increasing, leading to an unprecedented period of rapid development of road construction, and the mileage of roads has increased year after year. And because the geographical environment that the road passes through is complex and changeable, especially for the terrain of mountains, hills, and plateaus. The tunnel itself has the advantages of improving the actual alignment of the road, shortening the mileage and driving time, and improving operational efficiency. As a result, many road constructions now use a large number of tunnel solutions where applicable, which objectively promotes the construction of tunnels. But at the same time, the common problems ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0967G08G1/16
CPCG08G1/096775G08G1/096783G08G1/164
Inventor 唐飞詹志李嘉璐张凯凯程明徐童梅凤珠丁建勋丁中俊石琴
Owner HEFEI UNIV OF TECH
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