Networking method for train-ground communication network of vacuum tube flying train

A vehicle-to-ground communication and vacuum tube technology, which is applied in vehicle wireless communication services, network planning, wireless communication, etc., and can solve problems such as the difficulty in realizing the vacuum tube train transportation network

Active Publication Date: 2021-02-12
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, considering factors such as construction costs, the deployment of vacuum tube lines is often sparse, that is, there is only one vacuum tube line in a certain area, and it is difficult to realize a dense vacuum tube train transportation network.

Method used

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  • Networking method for train-ground communication network of vacuum tube flying train
  • Networking method for train-ground communication network of vacuum tube flying train
  • Networking method for train-ground communication network of vacuum tube flying train

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Embodiment

[0033] figure 1 It is a schematic diagram of the vacuum tube vehicle-to-ground communication architecture based on the wireless cloud access architecture, refer to figure 1 , the vacuum tube vehicle-to-ground communication architecture based on the wireless cloud access architecture mainly configures a wireless radio frequency remote unit (RemoteRadio Unit, RRU) next to the vacuum pipeline for processing radio frequency signals; the RRU is connected to the leak embedded in the inner wall of the pipeline through a cable. The waveguide, the radio frequency signal generated by the RRU is transmitted to the leaky waveguide, and the leaky waveguide radiates the signal into the pipeline in the form of radio waves.

[0034]The top of the vacuum tube flying train is equipped with a vehicle-mounted antenna, and the vehicle-mounted antenna can receive electromagnetic waves radiated by the leaky waveguide. After receiving the signal, the on-board antenna is amplified and forwarded to th...

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Abstract

The invention provides a networking method for a train-ground communication network of a vacuum tube flying train. The networking method comprises the following steps: taking the number of BBU pools required by the vacuum tube flying train along a line and position coordinates corresponding to the BBU pools as variables; taking transmission delay minimization as an objective function; taking the condition that one RRU can only be connected to one BBU and the distance between the BBU and the RRU does not exceed the maximum communication range of the BBU as a constraint condition, solving to obtain the number of BBU pools required along the vacuum tube train in networking and the position coordinates corresponding to each BBU pool; and performing networking according to the obtained number of the BBU pools required by the vacuum tube train along the line and the position coordinates corresponding to each BBU pool. According to the method, seamless coverage of electric waves on the wholevacuum tube line can be realized, and information transmission time delay from in-vehicle communication users to a core network is minimized.

Description

technical field [0001] The invention relates to the technical field of vehicle-to-vehicle communication of a vacuum tube flying train, in particular to a networking method for a communication network of a vacuum tube flying train to a vehicle. Background technique [0002] With the rapid development of China's high-speed railway technology, the progress made in China's high-speed railway construction has attracted the attention of the world, and China has achieved a leap from "chaser" to "leader" in the field of high-speed railway. At the same time, the next-generation ultra-high-speed train known as the "fifth means of transportation" - low-vacuum maglev high-speed train combines maglev and low-vacuum pipeline technology, with a maximum speed of 4000km / h, which is of great significance to the development of the national economy. The safe operation of the vacuum tube high-speed flying train is inseparable from a reliable train-ground communication system. At the same time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/42H04W16/18H04W64/00H04W84/18
CPCH04W16/18H04W64/00H04W84/18H04W4/42
Inventor 张嘉驰刘留王凯韩柏涛樊圆圆庄凌凡李铮周涛
Owner BEIJING JIAOTONG UNIV
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