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Vehicle following early warning method based on V2X

A vehicle and pilot car technology, applied in the V2X field, can solve the problems of lack of intelligent perception function and inability to cope with complex traffic scenes, etc.

Pending Publication Date: 2021-01-12
NANJING DESAY SV AUTOMOTIVE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Based on this, in order to solve the problem that the existing car-following system lacks intelligent perception function, and the pilot c

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  • Vehicle following early warning method based on V2X
  • Vehicle following early warning method based on V2X
  • Vehicle following early warning method based on V2X

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Embodiment Construction

[0060] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0061] V2X (vehicle to anything) technology, as an emerging vehicle physical layer communication technology, adopts DSRC (Dedicated Short Range Communications) communication protocol, with a transmission distance of 300m-1km and a transmission frequency of 50HZ; it effectively solves the problem of mobile communication network 3G / 4G and other wireless transmission delay issues, improving the message processing capability and efficiency.

[0062] A vehicle-following system based on V2X proposed by the present invention can enable the current vehicle to communicate with the roadside unit in real time, know the information of the pilot vehicle and th...

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Abstract

The invention relates to a vehicle following early warning method based on V2X, which is applied to a current vehicle in communication connection with a pilot vehicle. The method comprises the following steps: sending a vehicle following instruction, and receiving the vehicle following information of the pilot vehicle; obtaining V2X information of a pilot vehicle; analyzing and processing the V2Xinformation, and calculating a potential danger threshold value of the pilot vehicle; judging whether the danger threshold value is less than a preset safety threshold value or not: if yes, sending out a danger warning, and if not, continuing to judge. The brand-new vehicle following system based on V2X is different from a conventional mode that the vehicle following posture is adjusted by collecting front vehicle information on the basis of a main vehicle unilaterally, real-time information communication between the current vehicle and a pilot vehicle and between the current vehicle and an RSU (road test unit) can be achieved, and therefore more real-time and more accurate data information can be obtained, so that the vehicle following posture can be adjusted by the system.

Description

technical field [0001] The present invention relates to the technical field of V2X, in particular to a V2X-based car-following warning method. Background technique [0002] As we all know, with the rapid development of the automobile industry and the continuous improvement of people's living standards, traffic congestion is becoming increasingly serious. In the case of long-term congestion, the vehicle travels very slowly, and the driver needs to pay close attention to the distance between the current vehicle and the pilot car. In this way, the driver is very likely to be in a state of fatigue driving. In terms of driving intensity, the automatic car-following system has received widespread attention. [0003] At present, common car-following systems are based on the camera and radar installed on the current vehicle to actively obtain the information of the leading car, combined with a set of inherent strategies formulated in advance, to adjust the car-following posture. T...

Claims

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Application Information

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IPC IPC(8): H04W4/40G08G1/16G08G1/0962
CPCG08G1/0962G08G1/16H04W4/40
Inventor 吕伟
Owner NANJING DESAY SV AUTOMOTIVE CO LTD
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