Intersection vehicle intelligent cooperative passage method

An intersection and vehicle technology, applied in the field of intelligent transportation, can solve the problems of empty green lights and low traffic efficiency, and achieve the effect of reducing the probability of traffic accidents and improving the efficiency of vehicle traffic.

Inactive Publication Date: 2016-02-10
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is, aiming at the shortcomings of the existing traffic light system at intersections that adopts fixed passing time and waiting time for release, the problem of empty green lights and low passing efficiency can be combined with CPS to realize real-time perception, information service and dynamic control Based on the characteristics of the crossroads, a method for intelligent cooperative traffic of vehicles at intersections based on cyber-physical systems is proposed.

Method used

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  • Intersection vehicle intelligent cooperative passage method

Examples

Experimental program
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Embodiment 1

[0050] Embodiment one is shown in Fig. 3, and in this example, the intersection is two-way three-lane composition, and a car A travels from south to north, and another car B travels from east to west.

[0051] In this case, the traditional method of controlling vehicle traffic at the intersection is as follows: Figure 3a As shown, traffic lights are installed on the right lanes in the four directions of east, west, south, and north. The four traffic lights cycle according to the set signal phase, and the signal lights in the direction of A and B vehicles must not be in the same phase.

[0052] The traditional method for two vehicles to pass is as follows: when vehicle A or B arrives at the intersection, first observe whether the signal light is green, and if it is green, pass through the intersection, while the other vehicle B or A must wait for the signal light in the conflicting direction to turn red Only when the traffic direction signal light turns green can you start to ...

Embodiment 2

[0065] Embodiment 2 See Figure 4. In this example, the intersection is composed of two-way three-lane lanes. Vehicle A travels from south to north, vehicle B travels from east to west, and vehicle C travels from north to east.

[0066] In this case, the traditional method of controlling vehicle traffic at the intersection is as follows: Figure 4a As shown, traffic lights are installed on the right lanes in the four directions of east, west, south, and north, and the four traffic lights cycle according to the set signal phase, and the three vehicles A, B, and C conflict with each other, so the direction of traffic Signal lamps must not be in the same phase.

[0067] The traditional method of three-vehicle passing steps is that the first vehicle arrives at the intersection, first observe whether the signal light is green, and pass the intersection if it is green, and the second vehicle must pass the first vehicle direction signal light to turn red The passing direction signal ...

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Abstract

The invention discloses a no-signal intersection vehicle intelligent cooperative passage method based on a CPS (Cyber-Physical System), aiming to overcome the shortcomings of green light zero passage and low passage efficiency caused by fixed traffic light time control, and lack of information interaction among vehicles in the intersection passage management of prior art. Based on the deep fusion of the 3C (computing, communication and control) technology in a CPS, and supported by the GPS technology, vehicle-vehicle communication technology and speed intelligent control technology, the method is provided and comprises three steps of vehicle passage data acquisition, information processing and communication, and decision control; vehicles close to an intersection continuously obtain the passage information of local vehicles, and perform communication interaction with vehicles in other directions so as to percept surrounding environments in real time, and on the basis, the method performs dynamic decision making and control, i.e., the method analyzes whether the local vehicles and other vehicles exist potential bump risks according to the passage information of surrounding vehicles, cuts the risks, considers vehicle passage priorities, controls speeds and ensures vehicle safe and efficient passage.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a cyber-physical system-based intelligent coordinated vehicle passage technology at an intersection, and specifically a method for intelligent coordinated vehicle passage at an intersection. Background technique [0002] In recent years, the problem of urban traffic congestion caused by the rapid expansion of car ownership has occurred continuously, which has greatly affected the quality of life of the people and the development of the national economy. Studies have shown that the formation of most traffic jams is not due to insufficient road capacity, but due to unreasonable signal control at intersections. As the most common means of directing traffic, signal controllers are widely used at intersections, but most of them are not intelligent. Vehicles can only follow the preset fixed traffic light signal time to pass. In this case, green lights may appear empt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/09
Inventor 安吉尧黄仲周兴曹张保李涛
Owner HUNAN UNIV
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