Method and system for acquiring real-time traffic status information

A technology of real-time road conditions and links, which is applied in the field of intelligent transportation to achieve high accuracy, solve the problem of real-time road condition information coverage, and achieve high data accuracy.

Active Publication Date: 2015-06-17
SHANGHAI GOLDWAY INTELLIGENT TRANSPORTATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a method for obtaining real-time road condition information and its system. The invention generates effective links in the road network by processing the electronic basic road network data, analyzes the data of passing vehicles on

Method used

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  • Method and system for acquiring real-time traffic status information
  • Method and system for acquiring real-time traffic status information

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Embodiment Construction

[0035] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0037] First of all, the following table 1 shows some explanations of terms involved in the present invention:

[0038]

[0039]

[0040]

[0041] Table 1

[0042] The first embodiment of the present invention relates to a method for acquiring real-time road condition information, figure 1 It is a schematic flow diagram of the method fo...

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Abstract

The invention relates to the field of intelligent transportation, and discloses a method and system for acquiring real-time traffic status information. The method includes the following steps that all road sections in a road network are traversed, so that effective links with the starting nodes and the terminal nodes being each provided with a checkpoint device are generated; the vehicle passing data of all the checkpoint devices in the current road condition period or the previous historical period within the license plate backtracking period are read in; the effective links are read one by one, and vehicle passing records corresponding to the starting nodes and the terminal nodes of the links are screened out in the vehicle passing data; the vehicle passing data matched with license plates are searched for, accordingly, the section vehicle speed and the reliability of single samples are calculated, and abnormal samples are filtered; the samples of all the effective links are distributed to all the road sections to generate the real-time traffic status information. According to the method and system, foundation road network data are processed to generate the effective links, the license recognition vehicle passing data are analyzed on this basis, the concept of the sample reliability is introduced, and the accuracy rate of the real-time traffic status information and the information coverage of the complex road network can be improved.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a method and system for acquiring real-time road condition information in traffic guidance. Background technique [0002] With the improvement of related technologies, the license plate capture rate and recognition rate have been significantly improved, and the traffic information collection technology based on vehicle license plate recognition data has emerged as the times require. Compared with other traffic information collection technologies, the traffic information collection technology based on license plate recognition data has the advantages of strong work continuity, high data accuracy, and large detection sample size. The dynamic traffic data acquisition system based on the automatic identification technology of automobile license plate can obtain the parameters such as the travel time and travel speed of the vehicle by discriminating and analyzing the license ...

Claims

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Application Information

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IPC IPC(8): G08G1/01
CPCG08G1/0129G08G1/017
Inventor 郝勇刚朱江胡佳妮
Owner SHANGHAI GOLDWAY INTELLIGENT TRANSPORTATION SYST CO LTD
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