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A vehicle passing method, system, device and storage medium at an unsignaled intersection

A technology of intersections and vehicles, applied in the field of transportation, can solve problems such as limiting the flexibility of signal schemes, achieve the effect of improving traffic efficiency and avoiding traffic conflicts

Active Publication Date: 2022-08-09
北京理工大学前沿技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing technology mostly adopts a signal control scheme, combined with roadside equipment for vehicle-road coordinated traffic signal control, coupled with the inherent phase sequence scheme of the double-loop phase structure, which does not allow straight-going and left-turning traffic flows in different directions to merge at the exit road, which limits Signal Scheme Flexibility

Method used

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  • A vehicle passing method, system, device and storage medium at an unsignaled intersection
  • A vehicle passing method, system, device and storage medium at an unsignaled intersection
  • A vehicle passing method, system, device and storage medium at an unsignaled intersection

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Experimental program
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Embodiment 1

[0050] Embodiment 1 of the present invention proposes a method for passing vehicles at an unsignaled intersection, which is used to solve the limitation of using a signaled control scheme in the prior art. Cross-street demand, introduce the concept of virtual lane, project the needs of unmanned vehicles and pedestrians in four directions to the virtual lane, establish a topological map of unmanned vehicles and pedestrians crossing the street, and generate a traffic strategy tree based on depth-first search to adjust each participant. Conflicts between the people and improve the traffic efficiency of the intersection.

[0051] like figure 1 A flow chart of a vehicle passing method at an unsignalized intersection according to Embodiment 1 of the present invention is given.

[0052] In step S100, the status information of vehicles traveling in all directions of the road intersection and the pedestrian crossing requirements are obtained, and the driving route of the vehicle at th...

Embodiment 2

[0083] Based on a vehicle passing method at an unsignalized intersection proposed in Embodiment 1 of the present invention, Embodiment 2 of the present invention also proposes a vehicle passing system at an unsignaled intersection, such as Figure 15 It is a schematic diagram of a vehicle passing system at an unsignaled intersection according to Embodiment 2 of the present invention, and the system includes an acquisition module, an establishment module, and a solution module;

[0084] The acquisition module is used to obtain the status information of vehicles traveling in all directions of the road intersection and the pedestrian crossing demand, and determine the driving route of the vehicle at the road intersection according to the status information; Driving routes and pedestrian crossing needs, to determine traffic conflict points at intersections;

[0085] The establishment module is used to establish a virtual lane with the center of the road intersection as the origin,...

Embodiment 3

[0102] Embodiment 3 of the present invention also proposes a device, including:

[0103] memory for storing computer programs;

[0104] The processor is used to implement the steps of a vehicle passing method at an unsignaled intersection disclosed in Embodiment 1 of the present invention when executing the computer program, and the method steps specifically include:

[0105] In step S100, the status information of vehicles traveling in all directions of the road intersection and the pedestrian crossing requirements are obtained, and the driving route of the vehicle at the road intersection is determined according to the status information; According to the driving route and pedestrian crossing demand, determine the traffic conflict point at the intersection.

[0106] In this step, it is assumed that roadside equipment is installed on the road, all vehicles are unmanned vehicles, and all vehicles and roadside equipment can communicate wirelessly, which can provide the positio...

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Abstract

The present invention provides a method, system, equipment and storage medium for vehicle passing at an unsignaled intersection. The method includes: acquiring status information of vehicles traveling in various directions at a road intersection and pedestrian crossing requirements, and determining the vehicle's status at the road intersection according to the status information. Driving route: On the premise that there is no conflict between the pedestrian crossing time and the vehicle crossing time, the intersection traffic conflict point is determined according to the driving route and pedestrian crossing requirements; a virtual lane is established with the center of the road intersection as the origin, and vehicles in each direction lane are established. Projection to the virtual lane to build a topology network based on the virtual lane; the traffic strategy is obtained by solving the topology network of the virtual lane through the depth-first search algorithm. Based on the method, an unsignaled intersection vehicle passing system, equipment and storage medium are also proposed. The invention can be widely used in various unmanned vehicle traffic flow scenarios, adapt to various intersection types, avoid traffic conflicts and improve traffic efficiency.

Description

technical field [0001] The invention belongs to the technical field of transportation, and in particular relates to a vehicle passing method, system, device and storage medium at an unsignaled intersection. Background technique [0002] The rapidly developing IoV technology is currently a research hotspot in the field of traffic control and autonomous driving. In the IoV environment, through the information interaction between people, vehicles and roads, vehicles can perceive changes in each other's positions, which is helpful for different driving directions at intersections. Coordinated traffic between vehicles. Compared with the traditional signal-controlled intersection, it can take advantage of the Internet of Vehicles, thereby improving the traffic safety and traffic efficiency of the intersection. [0003] Exploring the problem of traffic conflicts between vehicles and pedestrians at intersections is the core problem of vehicle-road coordination technology. The first...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/07G08G1/08
CPCG08G1/0125G08G1/0145G08G1/07G08G1/08Y02T10/40
Inventor 韩欣彤陈雪梅孔令兴
Owner 北京理工大学前沿技术研究院