Multisource traffic information fusion method for expressways

A technology of traffic information and expressways, applied in the field of intelligent transportation, can solve the problems of little research on expressways

Inactive Publication Date: 2015-07-22
JILIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traffic information fusion methods that have been proposed are often aimed at urban road networks, and there is little research on expressways

Method used

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  • Multisource traffic information fusion method for expressways
  • Multisource traffic information fusion method for expressways
  • Multisource traffic information fusion method for expressways

Examples

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Embodiment Construction

[0059] see figure 1 , figure 2 and image 3 Shown, be the embodiment of the present invention, the steps are as follows:

[0060] Step 1. Unit division of expressway sections:

[0061] Treat each video detector as the beginning of a unit and also as the end of the previous unit. The maximum unit length of the stipulated road section is 5 kilometers, and the minimum unit length is 1 kilometer.

[0062] A certain expressway section is 20 kilometers long, there is a video detector at the starting point, along the forward direction, there is a video detector at 2 kilometers, then this point is used as the end point of the first unit and the starting point of the second unit. Continue along the expressway, there is a video detection device at 0.5 kilometers, if the location is less than 1 kilometer from the starting point of the second unit, it cannot be used as the end of the second unit; continue along the expressway for 1 kilometer, there is video detection device, then th...

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Abstract

The invention discloses a multisource traffic information fusion method for expressways. By fusion of traffic information of roads with detectors, more complete and accurate traffic information can be acquired; by fusion of the data of the roads with the detectors and the historical data, the traffic information of the roads without detectors can be predicted, and the traffic information of the integral roads can be obtained. The multisource traffic information fusion method includes steps of partitioning expressway road units, preprocessing traffic information data, and fusing inside-unit multisource traffic information and inter-unit traffic information. By fusing the traffic information acquired by various methods effectively, information types can be increased, data acquisition range is broadened, cost performance, accuracy and reliability of information acquisition can be effectively improved, and judgement and policy making error caused by failure of single information source is avoided.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a multi-source traffic information fusion method for highways. Background technique [0002] Real-time, accurate and comprehensive traffic information is the basis of intelligent transportation. At present, in terms of traffic information acquisition, there are problems such as single collection method, insufficient number of detectors, and unreasonable layout. Information fusion refers to the information processing process in which multi-source information is automatically analyzed and synthesized under certain criteria to complete decision evaluation. The effective fusion of traffic information collected in various ways can not only increase the types of information and expand the scope of data collection, but also effectively improve the cost performance, accuracy and reliability of information acquisition, and avoid judgments and errors caused by the failure of a si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
Inventor 于德新林赐云张伟杨克商强杨庆芳周户星王薇龚勃文郑黎黎
Owner JILIN UNIV
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