Vehicle internet assisting downloading method based on dynamic time slot

A technology that assists downloading and Internet of Vehicles, applied in the field of Internet of Vehicles communication, which can solve the problem of low transmission conflict rate and low data download volume.

Inactive Publication Date: 2014-01-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of low data download volume caused by the high transmission conflict rate in the assisted download process of the Internet of Vehicles, and proposes a method based on dynamic Time slot's Internet of Vehicles assisted download method

Method used

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  • Vehicle internet assisting downloading method based on dynamic time slot
  • Vehicle internet assisting downloading method based on dynamic time slot
  • Vehicle internet assisting downloading method based on dynamic time slot

Examples

Experimental program
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Embodiment Construction

[0021] A method for assisting downloading of the Internet of Vehicles based on a dynamic time slot, comprising the following steps:

[0022] Step A: After the target car enters the AP communication area, it submits a download request. The AP node obtains data through the network, calculates the driving time of the target car in its communication area according to the target vehicle speed, and downloads part of the data to the target car user.

[0023] Step B: When the target car fails to complete all data downloads when it leaves the AP communication area, the AP selects a group of vehicles traveling in the same direction as the target car as the assisting car to carry the target car according to the speed of the vehicle within its communication range. Data, delivered to users at different times and places in the blind zone;

[0024] The principle of selection is that the selected assisting vehicle will not conflict with other assisting downloading processes during the process...

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Abstract

The invention provides a vehicle internet assisting downloading method based on a dynamic time slot in order to solve the problem that the data download amount is small caused by high transmission conflict rate in the process of vehicle internet assisting downloading. The vehicle internet assisting downloading method is provided according to the characteristics that the vehicle speed change rate is low in a highway environment, and vehicles travel in the opposite direction or in the same direction. A vehicle-mounted user is connected to the internet in an AP communication area in a Wi-Fi mode, besides the AP communication area, an AP selects a group of assisting vehicles which can meet a target vehicle in different times and placed in a blind area to carry the needed data of the target vehicle according to factors such as the traveling speed of the target vehicle, the data are forwarded to the target vehicle in the meeting process, therefore, the transmission conflict rate is effectively lowered, and the downloaded data amount of the user is improved.

Description

technical field [0001] The invention relates to the technical field of Internet of Vehicles communication, and is applicable to a method for a driving vehicle to access a network to download data through roadside infrastructure and other surrounding driving vehicles in an expressway environment. Background technique [0002] With the development of information technology and the Internet, network terminals have begun to generalize from desktop computers to mobile devices, handheld devices and even ordinary objects. Internet access anytime and anywhere has become a new network development trend, and it is also affecting various traditional industries. In the field of automobiles and transportation, the informatization and networking of vehicles has gradually become a research hotspot in the industry and academia. [0003] In the urban environment, 3G network has a wide coverage and mature technology, which can theoretically provide low-speed mobile users with a network acce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
Inventor 刘建航葛雨明顾朝志李世宝崔学荣舒若
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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