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Method and device for real-time analysis of traffic signal phase

A traffic signal, real-time analysis technology, applied in the field of intelligent transportation systems, can solve the problems of increasing costs, huge installation funds and labor time, and achieve the effect of saving costs, eliminating funds and labor time

Active Publication Date: 2012-11-14
CENNAVI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the improvement of urban infrastructure, the traffic network of many cities has become more complex, and the number of traffic lights required has doubled. In order to ensure that the intelligent traffic system can obtain and analyze the phase of traffic lights in real time, it is necessary to install a large number of Especially for large-scale cities such as Beijing and Shanghai, the installation and maintenance of testing equipment requires huge funds and labor time, which increases the cost

Method used

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  • Method and device for real-time analysis of traffic signal phase
  • Method and device for real-time analysis of traffic signal phase
  • Method and device for real-time analysis of traffic signal phase

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Experimental program
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Embodiment 1

[0026] Embodiments of the present invention provide a method for analyzing traffic signal phases in real time, as shown in FIG. 1 , including:

[0027] Step 101, acquiring floating car data on a designated signalized intersection.

[0028] In this embodiment, the server can obtain the floating car data on the designated signalized intersection on the electronic map through existing technical means. It should be noted that the execution subject in this embodiment can be a device with computing and processing capabilities such as a server in an intelligent transportation system, or a server in a navigation system. The networking and data interaction among them enable the equipment in the intelligent transportation system or navigation system to obtain the data of the floating car in real time. The specific way of obtaining the data of the floating car is well known to those skilled in the art, and will not be repeated here.

[0029] Step 102, acquiring driving information of ve...

Embodiment 2

[0053] Embodiments of the present invention provide a method for analyzing traffic signal phases in real time, as shown in FIG. 2 , including:

[0054] Step 201, acquiring floating car data of all vehicles with the same driving direction on the signalized intersection and the road links adjacent to the signalized intersection within a specified time.

[0055] Wherein, the server collects the floating car data scope includes: the floating car data of the vehicles on the signalized intersection and the road links adjacent to the signalized intersection.

[0056] In practical applications, there are multiple directions at the signalized intersection, for example, there are two traffic directions at a cross-shaped signalized intersection, and four traffic directions at a rice-shaped signalized intersection with a turntable. In this embodiment, the server can analyze and obtain the green signal ratio of traffic lights (such as left-turn lights, straight-going lights, and right-turn...

Embodiment 3

[0097] An embodiment of the present invention provides a device for analyzing the phase of traffic signals in real time, such as image 3 shown, including:

[0098] The obtaining module 31 is used to obtain the data of the floating car on the designated signal intersection.

[0099] The first analysis module 32 is configured to acquire driving information of vehicles on the signalized intersection according to the floating vehicle data.

[0100]Wherein, the driving information includes the distance between the parking point of the vehicle and the traffic light on the signalized intersection, and / or the start-stop time of the vehicle.

[0101] The second analysis module 33 is configured to acquire the phase of the traffic light at the signalized intersection according to the driving information.

[0102] The device for analyzing the traffic signal phase in real time provided by the embodiment of the present invention can analyze the floating vehicle data of the vehicles passi...

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Abstract

The embodiment of the invention discloses a method and a device for real-time analysis of a traffic signal phase, relating to the field of an intelligent traffic system. The traffic signal phase on a road chain can be analyzed according to floating vehicle data, no detection device is needed, the capital and the labor time required for installation and maintenance of the detection device can be omitted, and thus the cost can be reduced. The method comprises: obtaining floating vehicle data of a designated signal crossing intersection; obtaining running information of vehicles at the signal crossing intersection according to the floating vehicle data, wherein the running information comprises the distances between stop points of the vehicles and traffic lights at the signal crossing intersection and / or the start and stop time of the vehicles; and obtaining phases of the traffic lights at the signal crossing intersection according to the running information. The method is suitable for analysis and acquisition of the traffic signal phase.

Description

technical field [0001] The invention relates to the field of intelligent traffic systems, in particular to a method and device for analyzing traffic signal phases in real time. Background technique [0002] In modern cities, the intelligent transportation system has become a necessary system tool to ensure the normal operation of the urban traffic network. Therefore, the intelligent transportation system needs to monitor and measure the traffic capacity of the intersection in real time, especially the phase of the signal lights on the intersection, including : The cycle of traffic lights at the same intersection, the duration of green lights in each direction, and usually expressed in the form of the green signal ratio of signal lights in each direction. [0003] In the prior art, in order to obtain and analyze the phase in real time, it is necessary to install corresponding detection equipment at road intersections where each traffic light is located. However, with the imp...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/08
Inventor 王春梅蒋晟
Owner CENNAVI TECH
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