System and method for calculating and releasing travel time accurate to second

A travel time, accurate technology, applied in traffic flow detection and other directions, can solve the problem of low accuracy of travel time publishing systems and methods

Active Publication Date: 2014-06-25
BEIJING E HUALU INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the travel time release system and method in the prior art are not accurate enough to provide a second-accurate calculation and System and method for issuing travel times

Method used

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  • System and method for calculating and releasing travel time accurate to second
  • System and method for calculating and releasing travel time accurate to second
  • System and method for calculating and releasing travel time accurate to second

Examples

Experimental program
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Embodiment 1

[0041] This embodiment provides a system that calculates and releases travel time accurate to the second, such as figure 1 As shown, it includes a central data processing unit 1, several video tracking units 2 and information publishing units 3; Each lane in the range includes at least two reference points or lines representing the vehicle entering the tracking range and leaving the tracking range, and the video tracking unit 2 continuously tracks each vehicle entering its video tracking range, and the corresponding Two adjacent video tracking ranges have an overlapping area, and each lane in the overlapping area contains a reference point or reference line; for roads with two or more lanes, the video tracking unit 2 judges the Whether there is a vehicle in each lane.

[0042] Each of the video tracking units 2 includes a travel time acquisition module 21 and a data comparison and refresh module 22 . The travel time acquisition module 21 is used to obtain the travel time t o...

Embodiment 2

[0052] This embodiment provides a method for calculating and publishing travel time accurate to the second, including the following steps:

[0053] S1: Set multiple video tracking ranges on the road where the travel time needs to be released. Each lane in each video tracking range contains two reference points or reference lines indicating that the vehicle enters the tracking range and leaves the tracking range. Two adjacent videos The tracking range has an overlapping area, and each lane in the overlapping area contains a reference point or a reference line;

[0054] S2: Each video tracking range is preset with its corresponding travel time T L at the initial T L = T x , where T x The minimum travel time is the time required for the vehicle to quickly drive through the video tracking range at the speed specified by the speed limit;

[0055] S3: For each video tracking range, continuously track each vehicle entering it, and obtain the first reference point or reference lin...

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PUM

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Abstract

The invention provides a system and method for calculating and releasing travel time accurate to second. According to the system and method for calculating and releasing the travel time accurate to second, more accurate travel time is obtained by monitoring different lanes. When one or more lanes in multiple lanes within a video tracking range are free of vehicles, the released travel time of the road section is the time required by a vehicle to rapidly pass through the road section according to a speed limit value of the current road section. In addition, the required travel time of the road section within the video tracking range is directly refreshed by the travel time required by each vehicle within the range of each video tracking road section to pass through the video tracking road section. By the adoption of the method, and actual travel time required by the current vehicle to pass through each video tracking road section can be reflected more accurately.

Description

technical field [0001] The invention relates to video tracking and detection technology, in particular to a system and method for calculating and publishing travel time accurate to the second, and belongs to the field of intelligent traffic information publishing. Background technique [0002] At present, when road traffic information release systems at home and abroad release real-time road traffic information, they basically provide road traffic conditions to travelers in three colors: green (smooth), yellow (moderate congestion), and red (serious congestion). . Usually, what people care about most during driving is not how congested the road ahead is, but how much time it takes to get from the current location to the destination ahead, that is, the travel time. Travel time is an important indicator to reflect the traffic status of the road section, and is the basis for traffic control and guidance. The result can provide real-time and effective information to travelers a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
Inventor 姜廷顺林拥军李艳东李颖宏唐琤琤侯文宇
Owner BEIJING E HUALU INFORMATION TECH
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