Dynamic traffic condition expression method and apparatus

A road condition, dynamic technology, applied in the field of intelligent transportation, can solve problems such as inconsistency of actual conditions

Active Publication Date: 2017-04-26
BEIJING PALMGO INFOTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to solve the above technical problems, the present invention provides a method and device for expressing dynamic road conditions, which can solve the problem that the road conditions expressed in the prior art do not match the actual conditions

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  • Dynamic traffic condition expression method and apparatus
  • Dynamic traffic condition expression method and apparatus
  • Dynamic traffic condition expression method and apparatus

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Embodiment Construction

[0075] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0076] figure 1 Shows a schematic flow chart of a dynamic road condition expression method provided by an embodiment of the present invention, such as figure 1 As shown, the dynamic road condition expression method of this embodiment is as follows.

[0077] 101. Acquire high-frequency GPS data of GPS points in a preset f...

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Abstract

The invention provides a dynamic traffic condition expression method and apparatus. The method comprises the following steps: acquiring and preprocessing high-frequency GPS data of GPS points in a preset first time period, and obtaining sub trajectories after a trajectory formed by all GPS points in the preprocessed high-frequency GPS data is segmented; extracting the velocity trends of the sub trajectories; fusing the velocity trends of the vehicles with intersected road segments covered by the sub-trajectories or a upstream and downstream relation into a general trend to express the change of the traffic condition of the same coverage area of the vehicles; distributing the traffic condition changes of the same coverage area to the corresponding road segments of the corresponding area and expressing the same in accordance with a preset traffic condition expression way. The method can solve the problem that the traffic condition expressed in the prior art does not conform to the actual situation, improves the accuracy of the traffic condition calculation, makes the traffic condition more accurate so that the traffic condition can be used freely between the map of different map manufacturers without road network matching conversion work.

Description

Technical field [0001] The invention relates to the technical field of intelligent transportation, and in particular to a method and device for expressing dynamic road conditions. Background technique [0002] With the acceleration of China's urbanization process, the number of motor vehicles in various cities has continued to increase, and traffic congestion has intensified. Real-time road conditions have become information that every traffic participant must master. Due to the continuous growth of traffic participants, the city’s real-time road conditions change more frequently. Real-time road conditions that can respond to changes in traffic conditions in a timely and accurate manner are very valuable. They will help traffic participants choose reasonable travel routes and reduce traffic congestion. influences. [0003] Traditional road conditions basically rely on low-frequency global positioning system GPS information for calculation, and express road conditions according to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
CPCG08G1/0104
Inventor 韩兴广郭胜敏李平孙亚夫夏曙东
Owner BEIJING PALMGO INFOTECH CO LTD
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