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Ethernet-based train communication network implementation method

A train communication network, Ethernet technology, applied in the direction of ring network, data exchange network, branch offices providing special services, etc., can solve the problem that EB-TCN related patents or public documents have not been found.

Active Publication Date: 2012-11-28
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] So far, no patents or publications related to how to achieve EB-TCN that meet the hard real-time characteristics have been found.

Method used

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  • Ethernet-based train communication network implementation method
  • Ethernet-based train communication network implementation method
  • Ethernet-based train communication network implementation method

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Embodiment Construction

[0062] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0063] The Ethernet-based train communication network implementation method provided by the present invention includes:

[0064] Step 1: Set a real-time virtual layer on top of the transport layer of the Ethernet TCP / IP protocol stack, and set a real-time protocol layer on top of the real-time virtual layer.

[0065] The TCP / IP protocol stack used by Ethernet is mainly divided into: application layer, transport layer, network layer, and Ethernet interface layer. The TCP / IP protocol is based on the Ethernet card hardware and related driver software to complete computer data communication. Among them, the transport layer protocols mainly include the transmission control protocol TCP and the user datagram protocol UDP, a...

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Abstract

The invention discloses an Ethernet-based train communication network implementation method in the technical field of train communication. The Ethernet-based train communication network implementation method comprises the following steps of: setting a real-time virtual layer on a transport layer of a TCP / IP (Transmission Control Protocol / Internet Protocol) stack of Ethernet, and setting a real-time protocol layer on the real-time virtual layer, wherein the real-time virtual layer is used for realizing train real-time data communication required by IEC 61375-1 train communication network standards on the basis of COTS (Commercial Off The Shelf) Ethernet hardware, drive and the TCP / IP stack; establishing an Ethernet train communication network which comprises an Ethernet-based multifunctional train bus structure and an Ethernet-based wired train bus structure; and carrying out data communication according to a set communication organization manner. The Ethernet-based train communication network implementation method has the capability of preventing the hardware, drive and TCP / IP stack of the Ethernet from being corrected, meeting the hard real-time property and adapting to the requirement on future train control or train operation control.

Description

technical field [0001] The invention belongs to the technical field of train communication, and in particular relates to a method for realizing an Ethernet-based train communication network. Background technique [0002] The train communication network (Train Communication Network, TCN) is produced with the development direction of modern trains such as high speed, automation and comfort, and is used to transmit and exchange information such as status, control, fault diagnosis, Passenger services and other information. [0003] The most widely used TCN international standard is the International Electrotechnical Commission IEC61375-1 "Railway Electrical Equipment - Train Bus - Part 1: Train Communication Network". communication. [0004] TCN has a two-level bus hierarchy, namely multifunction vehicle bus (MVB) and wire train bus (WTB), as well as a shared upper-layer real-time protocol (Real-Time Protocols, RTP). Among them, both buses adopt periodic master-slave protocol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/42H04L29/08H04L12/18H04L12/56
Inventor 李开成马连川曹源
Owner BEIJING JIAOTONG UNIV
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