Real-time dynamic timing method and system based on multi-source data

A real-time dynamic, multi-source data technology, applied in the direction of traffic signal control, can solve the problems of not being able to match real-time traffic flow data well, and there is no regional linkage control, so as to alleviate urban congestion and reduce traffic congestion and congestion. , Precise real-time dynamic control effect

Inactive Publication Date: 2018-10-09
重庆同枥信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither fixed-time control nor sensory control can match the real-time traffic flow data well, and there is no linkage control for the area

Method used

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  • Real-time dynamic timing method and system based on multi-source data
  • Real-time dynamic timing method and system based on multi-source data
  • Real-time dynamic timing method and system based on multi-source data

Examples

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Comparison scheme
Effect test

Embodiment 1

[0055] The real-time dynamic timing method based on multi-source data provided in this embodiment, in order to achieve more accurate real-time dynamic signal light control, it is necessary to integrate road infrastructure monitoring data and vehicle real-time data in order to achieve better traffic flow status estimation and It is predicted that the specific steps of the traffic signal light control method based on multi-source data fusion processing provided in this embodiment are as follows:

[0056] Step 1: Statistics and processing of historical data (historical OD information of observation data at each monitoring point on the road): Taking one week as a cycle, for the same day last week, use the intersection road infrastructure data and vehicle positioning data to statistically analyze the historical OD of each period of the day Traffic data; in one embodiment, the intersection road infrastructure data is uploaded high-definition bayonet data, road section flow data, vehi...

Embodiment 2

[0087]This embodiment also provides a real-time dynamic timing system based on multi-source data, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the system realizes The following steps:

[0088] Step 1: Obtain historical data and perform statistical analysis and processing. The historical data includes road infrastructure data, vehicle OD information and positioning data, and statistics of road section OD traffic and travel key node information;

[0089] Step 2: Obtain real-time road infrastructure data and real-time vehicle data, the real-time vehicle data including vehicle OD and positioning data;

[0090] Step 3: Carry out data fusion processing on real-time road infrastructure data and real-time vehicle data to obtain real-time traffic operation status, which includes road network dynamic OD traffic and intersection-associated section traffic;

[0091] Step 4: Use histori...

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Abstract

The invention discloses a real-time dynamic timing method based on multi-source data. The method comprises the steps of carrying out statistical analysis processing the historical road infrastructuredata and the vehicle positioning data; acquiring real-time road infrastructure data and vehicle positioning data, and carrying out fusion processing; estimating the current and prediction short-time dynamic OD flow on the basis of historical statistical analysis data and real-time processing data, generating a reference signal timing scheme; respectively obtain a road network traffic flow runningstate evaluation index for the current traffic operation condition and the current signal timing scheme, and the predicted traffic operation state and the generated signal timing scheme, and selectingan optimal timing scheme through the time-limited iterative process. The historical and real-time road infrastructure data and the vehicle positioning data are integrated, and the running condition of the traffic flow can be better estimated and predicted. The traffic signal lamps can be accurately and dynamically controlled in real time, and traffic congestion and blocking phenomena are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of traffic signal control, in particular to a real-time dynamic timing method and system based on multi-source data. Background technique [0002] Traffic lights at intersections are currently the most common way to guide traffic. Most of the most common traffic lights use fixed-cycle control switching, and a small number of them use induction control. With the rapid motorization process of cities, the expansion of urban road area has increased the number of intersections, and the deployment of traffic lights has also increased rapidly. Due to the incomplete penetration of road deployment detectors and the lack of real-time traffic flow data, it is difficult to provide a good data basis and real-time dynamic timing scheme for signal control. [0003] At present, the fixed-time timing control method used by most signal lights does not match and dynamically control with real-time traffic flow data; although a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 张红龙张睿刘良伟李敏
Owner 重庆同枥信息技术有限公司
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