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A method for automatic identification of traffic rules at intersections

An automatic identification and intersection technology, applied in the field of intelligent transportation, can solve the problem of not being able to know the different management and control of traffic intersections, and achieve the effect of avoiding prohibited sections, saving energy, and reducing carbon emissions.

Active Publication Date: 2021-03-19
FUJIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is only used to update the map information about new roads, and cannot learn about the different control of traffic intersections

Method used

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  • A method for automatic identification of traffic rules at intersections
  • A method for automatic identification of traffic rules at intersections

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Embodiment Construction

[0037] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0038] Such as figure 1 , the present invention a kind of intersection traffic rule automatic identification method, comprises:

[0039] Step S01, according to the driving trajectory formed by the vehicle trajectory data points sorted by time for each vehicle ID, determine the trajectory point where the vehicle's driving direction changes;

[0040] Step S02, calculating the difference between the trajectory point and the vehicle trajectory data point before the driving direction is changed, determining the trajectory point as the vehicle trajectory data point turning at the intersection and retaining it;

[0041] Step S03, clustering the vehicle trajectory data points for turning at the intersection, and identifying the t...

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Abstract

The invention discloses an intersection traffic rule automatic identification method and belongs to the technical field of intelligent traffic. The method comprises the following steps that: S01, the track points of the change of the running directions of vehicles are determined according to running tracks formed by the vehicle track data points of each vehicle which are sequenced according to time on the basis of each vehicle ID; S02, the difference values of the track points and vehicle track data points which are formed before the change of the running directions are calculated, track points which are vehicle track data points of intersection turning are determined and reserved; S03, the vehicle track data points of intersection turning are clustered, and traffic intersections and the types of the intersections are identified; S04, the number of left-turning vehicle track data points, the number of right-turning vehicle track data points and the number of tuning-around vehicle track data points at put into statistics for each intersection, and whether the traffic rules of the intersections are left-turning-forbidding traffic rules, right-turning-forbidding traffic rules and tuning-around-forbidding traffic rules are judged. With the intersection traffic rule automatic identification method of the invention adopted, all intersections and the control information of the intersections can be automatically identified; real-time accurate and safe navigation application requirements are provided for automatic unmanned driving; traffic congestion is avoided; pollution is reduced; and the environment is protected.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, in particular to an automatic identification method for traffic rules at intersections. Background technique [0002] The research on autonomous driving technology has attracted extensive attention and has become a research hotspot of relevant experts and scholars. Among them, vehicle driving safety is one of the housekeeping issues in autonomous driving. It is also the focus of experts' research to provide autonomous vehicles with safe automatic navigation in the road network environment. Therefore, real-time path planning is a key technology for autonomous vehicles. The automatic navigation system can guide the car to choose the optimal route to increase the traffic capacity of the existing road network by avoiding congested road sections. In real-time navigation systems, traffic rules, especially intersections, play an important role in traffic control systems in urban envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/0967
CPCG08G1/096725
Inventor 胡蓉陈汉林夏烨邹复民蒋新华廖律超方卫东陈子标许伟辉张茂林张美润郭峰甘振华赖宏图崔跃鹏
Owner FUJIAN UNIV OF TECH
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