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5G communication-based urban traffic flow following control method and device, and vehicle-mounted terminal

A technology of urban traffic and control methods, applied in control devices, vehicle parts, transportation and packaging, etc., which can solve the problem that the comfort, stability, and safety of intelligent assisted driving cannot be achieved, and the car-following model cannot accurately reflect the car-following model Changes, restrictions on the development of intelligent transportation and other issues, to achieve the effect of improving stability and safety, avoiding traffic accidents, and accurately following the car model

Active Publication Date: 2021-08-27
SHANDONG LABOR VOCATIONAL & TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The inventors found that in the existing car-following control technology, there is generally a problem of poor real-time performance in car-following control, which leads to the comfort, stability, and safety of intelligent assisted driving not meeting the user's expected requirements, which limits the development of intelligent transportation. , the response coefficient of the vehicle is mostly assumed, and the designed car following model cannot accurately reflect the real car following changes on urban roads

Method used

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  • 5G communication-based urban traffic flow following control method and device, and vehicle-mounted terminal
  • 5G communication-based urban traffic flow following control method and device, and vehicle-mounted terminal
  • 5G communication-based urban traffic flow following control method and device, and vehicle-mounted terminal

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Embodiment 1

[0036] In the technical solutions disclosed in one or more embodiments, such as figure 1 As shown, the following control method for urban traffic flow based on 5G communication includes the following steps:

[0037] Step 1. Obtain real-time road condition information and car-following data ahead;

[0038] Step 2, input the car following data into the improved OVM model, and calculate the desired acceleration; the reaction coefficient in the improved OVM model is a function of time;

[0039] Step 3. According to the expected acceleration value, control the accelerator opening and brake pressure of the vehicle to realize automatic car following.

[0040] The car-following control method of this embodiment is applicable to the car-following control of a vehicle team without overtaking behavior on a single lane. Through the change of the speed of the preceding vehicle and the current vehicle or the distance between the following vehicles, the following vehicle behavior of the cur...

Embodiment 2

[0081] Based on Embodiment 1, this embodiment provides a 5G communication-based urban traffic flow follow-up control device, including:

[0082] Obtaining module: configured to obtain real-time road condition information ahead and car-following data;

[0083] Calculation module: configured to input the following car data into the improved OVM model, and calculate the desired acceleration; the reaction coefficient in the improved OVM model is a function of time;

[0084] Output module: configured to control the accelerator opening and brake pressure of the vehicle according to the expected acceleration value, so as to realize automatic car following.

[0085] Further, the improved OVM model is:

[0086] The improved OVM model is specifically:

[0087]

[0088] Among them, α represents the car-following reaction coefficient, a and b represent the correlation coefficient, and a n (t) is the acceleration of the nth car, △x n (t) The following distance between the nth car an...

Embodiment 3

[0090] Based on Embodiment 1, this embodiment provides a vehicle-mounted terminal, including an acquisition module, a communication module, and a processor;

[0091] Acquisition module: through the communication module, it is used to collect the road condition information and follow-up data in real time;

[0092] Processor: configured to execute the 5G communication-based urban traffic flow control method described in Embodiment 1.

[0093] Further, the communication module is a 5G communication module.

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Abstract

The disclosure proposes a 5G communication-based urban traffic flow follow-up control method and device, and a vehicle-mounted terminal. The control method includes the following steps: obtaining real-time road condition information and follow-up data in front; inputting the follow-up data into the improved OVM model , to calculate the expected acceleration; the reaction coefficient in the improved OVM model is a function of time; according to the expected acceleration value, the accelerator opening and brake pressure of the vehicle are controlled to realize automatic car following. The disclosure improves the car following model, and proposes a car following control method with better real-time performance and higher accuracy. In the present disclosure, by improving the acceleration value obtained by the OVM model, it can follow the change of time in real time, and improve the stability and safety of the car-following control.

Description

technical field [0001] The present disclosure relates to the technical field related to intelligent transportation, and in particular, relates to a method and device for controlling urban traffic flow following a vehicle based on 5G communication, and a vehicle-mounted terminal. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] In recent years, due to the substantial increase in the number of road vehicles, various traffic accidents have become more and more serious. Many researchers have proposed various strategies to alleviate traffic problems. Among them, the research mainly focuses on the traffic flow model and the car-following model. The traffic flow model mainly includes three types: macroscopic model, microscopic model and mesoscopic model; How to follow each other states on the road. [0004] The research on car-following theor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/165B60W50/00B60R16/023
CPCB60R16/023B60W30/165B60W50/00B60W2050/0028
Inventor 韩莉娜史云峰彭颖斐牛奔郑元杰
Owner SHANDONG LABOR VOCATIONAL & TECHN COLLEGE
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