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Method and system for acquiring and estimating road conditions based on vehicle-to-vehicle communication

A vehicle-to-vehicle communication and road condition technology, which is applied in the field of intelligent transportation, can solve the problems of inability to provide road condition services, large information delay, and small amount of information, and achieve the effects of less delay, large amount of information, and less time.

Inactive Publication Date: 2014-08-06
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is that the method for obtaining road condition information in the prior art has the disadvantages of less information, large information delay, and inability to provide road condition services for specific people and locations. Method and system for road condition acquisition and road condition estimation in vehicle-to-vehicle communication

Method used

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  • Method and system for acquiring and estimating road conditions based on vehicle-to-vehicle communication
  • Method and system for acquiring and estimating road conditions based on vehicle-to-vehicle communication

Examples

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Embodiment 1

[0038] This embodiment provides a method for obtaining and estimating road conditions based on vehicle-to-vehicle communication. The overall flow chart is as follows figure 1 shown, including the following steps,

[0039] S1: Each vehicle obtains its own position, vehicle speed and driving direction as the road condition information of the vehicle's position, and the position includes the number of the road where the vehicle is located and the specific position coordinates of the vehicle on the road;

[0040] S2: Each vehicle transmits the road condition information of its own location to other vehicles, and at the same time receives the road condition information of other vehicles. The road condition information can be encapsulated into a data frame, and the road condition information is exchanged and shared with other vehicles periodically;

[0041] S3: Each vehicle judges the location of other vehicles and the degree of congestion in the direction of travel based on the rec...

Embodiment 2

[0050] This embodiment provides a system for road condition acquisition and road condition estimation based on vehicle-to-vehicle communication, such as figure 2 As shown, the system is installed on each vehicle, including:

[0051] The positioning unit is used to obtain the road condition information of each vehicle, and the road condition information includes the position, speed and driving direction of the vehicle itself, the positioning unit is a Beidou satellite navigation terminal, and the Beidou satellite navigation terminal includes a satellite signal receiver , satellite signal transmitter, satellite signal decoding processing and memory, the Beidou satellite navigation terminal has a short message function, and informs itself of its position and alarm by writing a 120-character short message in a mobile communication blind spot;

[0052] The vehicle-to-vehicle communication unit is used to transmit the road condition information of its own location to other vehicles...

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Abstract

The invention provides a method and system for acquiring and estimating road conditions based on vehicle-to-vehicle communication. Road condition information of vehicles is acquired through a positioning unit, the road condition information is transmitted to other vehicles through a vehicle-to-vehicle communication unit, road condition information of other vehicles is received, the road condition information is processed through an information processing control unit, road condition congestion degrees are acquired and displayed on an electronic map through different colors, and information sharing between the vehicles can be quickly achieved. The quantity of the acquired road condition information is large, the detailed road congestion condition in a certain region surrounding the vehicles can be acquired, all roads in the region can be covered, consumed time in the whole process is short, road conditions can be updated in real time, and road condition services can be provided for specific persons and positions. Positions and time needing road condition estimation are determined, matched road condition information is acquired from stored road condition information and output, the congestion conditions of the roads at a certain moment can be predicted in advance, and users can conveniently conduct path planning in advance.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a method and system for obtaining and estimating road conditions based on vehicle-to-vehicle communication. Background technique [0002] With the development of modern transportation and the continuous improvement of economic level, the number of cars is increasing faster and faster, and the roads are becoming more and more congested, which brings great inconvenience to people's travel. Timely acquisition of road congestion can provide a reference for choosing a suitable travel route, and at the same time prevent the congestion from worsening, keep the road smooth, and bring convenience to traffic management. [0003] At present, the common real-time traffic information acquisition mainly collects the road traffic information through the traffic information collection node, uploads it to the server of the traffic information processing center through the wirel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0968
Inventor 徐国卿汪明李卫民秦斐燕
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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