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Early warning and communication redundancy method and system for red light running scene based on c-v2x

A C-V2X and red light running technology, which is applied in the field of early warning and communication redundancy in the red light scene

Active Publication Date: 2021-11-09
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The V2I technology in V2X specifically refers to the information interaction between vehicles and roadside facilities, but what still needs to be solved is that when the roadside end of the V2I information link is damaged, redundant communication links are required to complete the information exchange

Method used

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  • Early warning and communication redundancy method and system for red light running scene based on c-v2x
  • Early warning and communication redundancy method and system for red light running scene based on c-v2x
  • Early warning and communication redundancy method and system for red light running scene based on c-v2x

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] (1) if figure 2 As shown, the system consists of three terminals: the vehicle terminal, the traffic light terminal, and the cloud server terminal.

[0076] (2) Car end: The car end includes the vehicle intelligent terminal T-BOX, the vehicle MP5 central control display device, and the vehicle voice equipment.

[0077] ①The vehicle-mounted MP5 central control display device is a human-computer interaction interface, connected with the vehicle-mounted intelligent terminal, and used to display early warning, audio-visual entertainment and other functions. The receiving module in the vehicle-mounted MP5 central control display device is used to receive the early warning signal of the vehicle-mounted intelligent terminal. After receiving the early warning signal, the display control module makes the MP5 central control screen display the corresponding early warning picture.

[0078] ②Vehicle voice equipment is a human-computer interaction interface, which is connected to t...

Embodiment 2

[0091]The workflow of the present invention will be described in detail below based on the early warning scene of running a red light at an intersection.

[0092] (1) The system works based on whether the traffic lights are working normally or not, such as image 3 . Both the cloud server and the traffic light electronic equipment set the abnormal parameter to 0 by default, that is, the working status is normal. The judgment of whether the traffic light is abnormal or not is jointly judged by the fault diagnosis module of the traffic light and the server. The workflow steps of the fault diagnosis module of the traffic light are (2)~(4), as Figure 5 As shown, the server-side judgment steps are (5)-(6), such as Figure 6 shown;

[0093] (2) When the signal light control module in the traffic light electronic equipment is abnormal, the fault diagnosis module judges that the traffic light is abnormally lit, and the abnormal parameter is set to 1 (binary first position 1);

[...

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Abstract

The invention discloses a C-V2X-based early warning and communication redundancy method and system for running a red light scene, which belongs to the technical field of vehicle safety. When the RSU is in a normal working state, the RSU broadcasts SPAT information and MAP information in a V2I communication mode. It is sent to all vehicles within a certain distance at a fixed frequency, and the vehicle screens the SPAT information and MAP information that match the driving phase of the vehicle, and visually displays the corresponding roadside information on the display device in the vehicle. At the same time, the vehicle intelligent terminal Carry out early warning judgments in various scenarios; when the RSU is in an abnormal working state, the server communicates with the vehicle through V2N, and the server sends corresponding instructions to the vehicle according to various abnormal causes of the RSU, and visually displays the corresponding instructions on the display device in the vehicle. Roadside information, and at the same time, various scene early warning judgments are carried out in the vehicle intelligent terminal. When the roadside terminal in the V2I information link is damaged, the information exchange can be completed through the redundant communication link.

Description

technical field [0001] The invention belongs to the technical field of vehicle safety, and more specifically, relates to a C-V2X-based early warning and communication redundancy method and system for running a red light scene. Background technique [0002] In the urban road network, roadside facilities such as traffic lights and warning signs play an important role in maintaining traffic order. However, sometimes due to weather, occlusion, driver's vision and other reasons, the driver cannot correctly and completely receive the meaning of roadside facilities, resulting in traffic safety risks. And because the transformation cost is too high, there are still many traffic lights that can only display the color of the signal light and cannot display the countdown number. Therefore, it is necessary to accurately and completely convey the semantics of roadside facilities to cars through technical means. [0003] With the development of computer science, there are existing devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/40H04L29/08G08G1/01
CPCG08G1/0104G08G1/0125G08G1/0137H04L67/12H04W4/40
Inventor 吴啟璿
Owner DONGFENG MOTOR CORP HUBEI