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Tunnel traffic information dynamic display method based on V2X technology and intelligent traffic sign

A technology for dynamic display and traffic information, applied in the direction of controlling traffic signals, services based on specific environments, traffic control systems for road vehicles, etc. , to achieve the effect of relieving computing and storage pressure, ensuring real-time performance and accuracy, and optimal delay

Active Publication Date: 2022-01-07
DONGFENG LIUZHOU MOTOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most tunnel areas only rely on traditional intelligent traffic signs for management. Intelligent traffic signs are a traffic management facility that uses graphics, colors, and symbols to indicate, manage and control traffic. However, due to the static limitations of intelligent traffic signs , the driver cannot obtain the traffic management information in the tunnel area in time, and cannot adjust the speed of the vehicle in time when entering the tunnel
Especially for commercial trucks, due to their large load and high inertia, it takes a long time to adjust the driving speed, which easily leads to traffic accidents and seriously affects the traffic efficiency and safety in the tunnel area

Method used

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  • Tunnel traffic information dynamic display method based on V2X technology and intelligent traffic sign
  • Tunnel traffic information dynamic display method based on V2X technology and intelligent traffic sign
  • Tunnel traffic information dynamic display method based on V2X technology and intelligent traffic sign

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Experimental program
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Effect test

Embodiment 1

[0068] A method for dynamically displaying tunnel traffic information based on V2X technology, comprising the following steps:

[0069] (1) Information collection: Based on V2X technology and MEC technology, the state information of commercial vehicles inside the tunnel is collected through the OBU, and the state information is transmitted to the RSU, and the RSU transmits the state information to the MEC server; the state information It includes collecting the number, speed and location information of commercial vehicles inside the tunnel.

[0070] (2) Information processing: the MEC server summarizes and classifies the status information transmitted from the RSU, and generates real-time traffic information of commercial vehicles in the tunnel area; the real-time traffic information of commercial vehicles in the tunnel area includes the status information and guide commercial The induced speed of the vehicle traveling in coordination with other commercial vehicles in the tunn...

Embodiment 2

[0075] The difference between this embodiment and Embodiment 1 lies in that: the MEC server is connected to the RSU unit through the PC5 interface; the MEC server communicates wirelessly with the intelligent traffic sign; and the RSU communicates wirelessly with the OBU.

Embodiment 3

[0077] The difference between this embodiment and Embodiment 2 is that: when the MEC server and the RSU transmit status information, UPF is introduced, and the status information is analyzed and rule-adapted by using ULCL diversion mode, so as to generate real-time traffic information of commercial vehicles in the tunnel area , MEC server and UPF transmit state information through MP2.

[0078] The method for parsing state information and adapting rules is as follows:

[0079] 1) The number of MEC servers that need to be deployed in the tunnel area

[0080]

[0081] Among them, n MEC is the number of MEC servers, d blind is the length of the warning area, r c is the communication range of the MEC server, [X] is the rounding function;

[0082] 2) The MEC server screens the vehicles in the tunnel, collects the status information of the vehicles in the same direction to generate real-time traffic information of commercial vehicles in the tunnel area; the screening standard...

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Abstract

The embodiment of the invention discloses a tunnel traffic information dynamic display method based on the V2X technology and an intelligent traffic sign, wherein the method comprises the following steps: information collection: the V2X technology and the MEC technology are used as means, and the state information of a commercial vehicle in a tunnel is collected through arranging an OBU and an RSU; information processing: an MEC server summarizes and classifies the state information transmitted from the RSU, and transmits the real-time traffic information of the commercial vehicle in the tunnel area in real time; and information issuing: real-time traffic information of the commercial vehicle in the tunnel area is transmitted to the intelligent traffic sign and the OBU by the MEC server; a commercial vehicle which is about to drive into the tunnel obtains traffic information in the tunnel through the intelligent traffic sign, completes a deceleration-constant speed driving process, and carries out cooperative driving with the commercial vehicle driving in the tunnel; and a commercial vehicle running in the tunnel obtains the traffic condition in the tunnel through the OBU, and runs in cooperation with other vehicles at the induction speed in the tunnel, so that the passing efficiency and safety in the tunnel area are improved.

Description

technical field [0001] The present application relates to the technical field of intelligent transportation, in particular to a method for dynamically displaying tunnel traffic information based on V2X technology and intelligent traffic signs. Background technique [0002] In some mountainous areas of our country, there are some typical medium and long tunnel areas with complex traffic conditions. These medium and long tunnel areas have the characteristics of dark light and serious "black and white hole effect". Some commercial trucks and other large vehicles drive in these medium and long tunnel areas. The sight distance is seriously insufficient. At the same time, commercial trucks have the characteristics of heavy load and high inertia. Before entering the tunnel area, they are relatively "unfamiliar" with the information of the tunnel area, and cannot adjust the vehicle status (speed) in time, which may easily cause the vehicle to collide after entering the tunnel. . B...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0967G08G1/08H04W4/40
CPCG08G1/096775G08G1/096783G08G1/08H04W4/40
Inventor 赵红专展新冯高山许恩永赵德平吴浩陈建鹏卢宁宁代静蒋燕李林
Owner DONGFENG LIUZHOU MOTOR
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