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Method for rapidly judging mixed traffic conflict situation

A traffic conflict and mixed traffic technology, applied in the field of traffic management, can solve problems such as complex statistical models, impractical discrimination methods, and low efficiency, and achieve the effects of simple and efficient methods, intuitive and visible results, and a wide range of applications

Active Publication Date: 2018-11-30
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The object of discrimination is single
In the existing traffic conflict discrimination technology, most of them can only discriminate the traffic conflict object for a single traffic individual unit.
In general traffic scenarios, there are often different types of traffic individual units including motor vehicles, electric bicycles, bicycles, pedestrians, etc., and a single discrimination method is impractical
[0007] (2) Complicated calculation method
Among the existing traffic conflict discrimination methods, there are many models with extremely high accuracy, but the amount of calculation is huge, and the statistical models involved are too complicated, which is difficult for ordinary traffic managers to grasp.
Even if the technology is mastered, it takes a lot of time and energy to calculate, which is time-consuming and labor-intensive, but the input is not directly proportional to the output, and the efficiency is low

Method used

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  • Method for rapidly judging mixed traffic conflict situation
  • Method for rapidly judging mixed traffic conflict situation
  • Method for rapidly judging mixed traffic conflict situation

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Embodiment

[0063] A method for quickly judging mixed traffic conflict situations, comprising the following steps:

[0064] S1 The road section to be detected is equipped with a monitoring camera. After the camera is calibrated, the picture or video of the road section to be detected is collected and input into the computer. After processing, each traffic individual unit of the road section to be detected is identified. The traffic individual unit includes motor vehicles, non-motor vehicles and pedestrians ,like figure 2 shown.

[0065] S2 Obtain the static feature information and dynamic feature information of all traffic individual units within the video detection range, and divide all traffic individual units into two groups of vehicles and pedestrians, such as image 3 shown;

[0066] Static feature information includes the type, length and occupied space area of ​​traffic individual units;

[0067] The dynamic feature information includes position information, speed and direction...

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Abstract

The invention discloses a method for rapidly judging a mixed traffic conflict situation, and is used for a traffic management field. The method comprises the following steps: identifying each trafficindividual unit in a road segment to be detected; calculating the movement distance of each traffic individual unit within reaction time; acquiring critical conflict areas for vehicles and pedestrians; and taking the intersection of the critical conflict areas, so as to finally obtain a traffic conflict hidden danger area. Compared with the previous traffic conflict discrimination technology, themethod provided by the invention has strong operability, many applicable objects, wide scope of application, intuitive and visual results, and practical promotion values.

Description

technical field [0001] The invention relates to the field of traffic management, in particular to a method for quickly judging mixed traffic conflict situations. Background technique [0002] In recent years, with the rapid development of science and technology and the rise of new business models, the shared economic model represented by shared bicycles, shared cars, and shared scooters has entered the transportation industry, aiming to solve the travel problems of urban residents. The prevalence of the sharing economy has brought a lot of convenience to urban travel, and at the same time it has brought more new requirements and challenges to traffic management technology. At the same time, it has also brought about the same development trend in the traffic environment at home and abroad: various types of traffic individual units The traffic environment is becoming more and more complex, and the number of non-motorized vehicles has increased dramatically. However, combined ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/16H04W4/02
CPCH04W4/026H04W4/027G08G1/01G08G1/0104G08G1/16G08G1/0116G08G1/0133G08G1/04G08G1/164G06V20/52G08G1/0141G08G1/0145
Inventor 黄玲郭亨聪
Owner SOUTH CHINA UNIV OF TECH
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