Traffic jam early warning method and system, on-board unit and road side unit

A technology of traffic congestion and roadside unit, applied in the field of intelligent transportation, can solve the problem that drivers cannot timely and accurately understand road condition information, and achieve the effect of improving people's quality of life, promoting economic development, and improving timeliness and accuracy.

Inactive Publication Date: 2017-10-27
SHENZHEN GENVICT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a V2X-based traffic jam early warning method, system, vehicle-mounted un...

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  • Traffic jam early warning method and system, on-board unit and road side unit
  • Traffic jam early warning method and system, on-board unit and road side unit
  • Traffic jam early warning method and system, on-board unit and road side unit

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Embodiment Construction

[0055] figure 1 It is a flowchart of Embodiment 1 of the traffic jam warning method based on V2X technology of the present invention. In this embodiment, the roadside unit has the following steps:

[0056] S11. Receive driving state information of vehicles within the coverage area of ​​the signal.

[0057] In this step, the first thing to say is that combining figure 2 The V2X-based traffic jam early warning system of the present invention mainly includes a vehicle-mounted unit, a roadside unit and a background information server. The on-board unit is mandatory to be installed in all road-driving vehicles through front or rear installation. The on-board unit can obtain real-time vehicle driving status information, including GPS positioning, driving direction, driving speed, etc. BSM (basic safety message, basic information related to safety) information. In addition, when an accident occurs, the driving status information also includes accident alarm information. After obtaining ...

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Abstract

The invention relates to a traffic jam early warning method and system, an on-board unit and a road side unit. The traffic jam early warning method is characterized in that the road side unit executes the following steps: receiving driving status information of vehicles within a signal coverage range; analyzing traffic conditions according to the driving status information of the vehicles; and when traffic jam occurs, reporting jam early warning information to a server and broadcasting the jam early warning information to surrounding vehicles. According to the technical scheme, traffic condition timeliness and accuracy can be improved greatly, thereby providing effective traffic information reference for people going out, promoting economic development and improving people's living quality.

Description

Technical field [0001] The invention relates to the field of intelligent transportation (Intelligent Transportation System, ITS for short), in particular to a V2X-based traffic jam warning method, system, vehicle-mounted unit and roadside unit. Background technique [0002] With the increase of urban population and urban traffic flow, the phenomenon of driving difficulties, poor road networks, and traffic congestion in cities, especially on highways and scenic spots during holidays, has become increasingly prominent. Traffic congestion is becoming a constraint on economic development and reducing people’s quality of life. , One of the bottlenecks that weaken economic vitality. At present, people are accustomed to real-time querying traffic conditions and planning travel routes through mobile map apps like Baidu, Gaode, Google, etc. or listening to traffic broadcasts before traveling. Real-time traffic conditions are generally obtained through taxis, buses, and car navigation equi...

Claims

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Application Information

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IPC IPC(8): G08G1/01
CPCG08G1/0133G08G1/0145
Inventor 董时富史立东
Owner SHENZHEN GENVICT TECH
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