Method and apparatus for extracting characteristic value of road condition data

A technology of data eigenvalues ​​and road conditions, applied in electrical digital data processing, special data processing applications, traffic control systems for road vehicles, etc.

Active Publication Date: 2010-06-30
CENNAVI TECH
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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for extracting characteristic values ​​of road condition data to solve the problem of untimely evacuation of some traffic congestion points due to the inability of ATIS to realize road condition prediction to warn pedestrians

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  • Method and apparatus for extracting characteristic value of road condition data
  • Method and apparatus for extracting characteristic value of road condition data
  • Method and apparatus for extracting characteristic value of road condition data

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Embodiment Construction

[0026] In order to solve the problem in the prior art that some traffic congestion points cannot be evacuated in time because ATIS cannot realize road condition prediction to warn pedestrians, the embodiments of the present invention provide a method and device for extracting characteristic values ​​of road condition data.

[0027] Such as figure 1 As shown, the method for extracting the feature value of road condition data provided by the embodiment of the present invention includes:

[0028] Step 101, obtaining the most recent historical traffic data of at least three months;

[0029] Step 102, marking the road speed according to the inherent characteristics of the road speed in the historical road condition data;

[0030] In this embodiment, the inherent feature is a road name, a day of the week, and a time window corresponding to the road vehicle speed.

[0031] Step 103, performing a clustering operation on road speeds with the same identification;

[0032] In this emb...

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Abstract

The present invention discloses a method and an apparatus for extracting characteristic value of road condition data, relating to the application field of intelligent traffic system, aiming at solving the problem that traffic congestion is not evacuated timely as ATIS is incapable of forecasting road condition and giving warning to the traveler. The technical scheme of the invention comprises: acquiring historical road condition data of at least the past three months, marking road speed according to the inherent characteristic of the road speed contained in the historical road condition data;carrying out clustering operation on road speeds with the same mark; extracting the average value of the road speeds in the cluster meeting requirements after the clustering operation, and outputtingthe average value as characteristic value of the road condition data, the number of the road speeds in the cluster meeting requirements is not smaller than a predetermined load speed number. The technical scheme provided in the embodiment of the present invention is suitable for intelligent traffic field, such as ATIS and the like.

Description

technical field [0001] The invention relates to the application field of intelligent transportation systems, in particular to a method and device for extracting characteristic values ​​of road condition data. Background technique [0002] Advanced Traffic Information System (ATIS for short) is based on a complete information network, through sensors and transmission equipment equipped on roads, vehicles, transfer stations, parking lots and meteorological centers, to obtain All kinds of traffic information are processed comprehensively to provide comprehensive and accurate road traffic congestion information to the society in real time. [0003] In the process of realizing the present invention, the inventors found that the data source of ATIS is obtained in real time, and ATIS can only feed back real-time road condition information, but cannot realize the prediction of road conditions to warn travelers, resulting in untimely evacuation of some traffic congestion points, so ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G06F17/30
CPCG08G1/0104
Inventor 李建军贾学力梅生申小次
Owner CENNAVI TECH
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