Train communication network switching device and system based on Ethernet

A train communication network and switching device technology, which is applied in the field of train communication network switching devices and systems, can solve the problem of low real-time performance of Ethernet transmission, and achieve the effects of high stability guarantee, real-time protection, and data loss prevention.

Inactive Publication Date: 2014-09-10
GUANGXI UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The present invention is to overcome the technical defect of low real-time transmission of Ethernet applied to trains in the above-men...

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  • Train communication network switching device and system based on Ethernet
  • Train communication network switching device and system based on Ethernet

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Embodiment Construction

[0017] A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0018] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0019] Such as figure 1 As shown, the Ethernet-based train communication network switching device according to a specific embodiment of the present invention includes:

[0020] RS485 interface module 140, is used for providing interface for the equipment that has RS485 interface on the train;

[0021] M12 network interface module 10, is used for providing network interface for train on-board equipment;

[0022] The switching...

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Abstract

The invention discloses a train communication network switching device based on the Ethernet. The train communication network switching device comprises an RS485 interface module, an M12 network interface module, a switching module, a CPU module and an SPI module, wherein the RS484 interface module is used for providing an interface for a device, with an RS485 interface, on a train, the M12 network interface module is used for providing a network interface for a train-mounted device of the train, the switching module is used for carrying out data information transmission and switching on data information received through the RS485 interface module and the M12 network interface module through a VLAN, the CPU module is used for configuring a register of the switching module to enable the switching module to achieve a tree generation protocol, the VLAN, flow control and a data priority, and the SPI module is used for providing register control channels for the CPU module and the switching module. By means of the train communication network switching device, the real-time performance of information data transmission and switching in a train communication network can be guaranteed.

Description

technical field [0001] The invention relates to the field of train communication, in particular to an Ethernet-based train communication network switching device and system. Background technique [0002] With the increase of train speed, the structure of the train is becoming more and more complex, and higher requirements are put forward for the safe, reliable and efficient operation of the train. The modern high-speed EMU adopts the power distribution mode, and the train traction, braking and other equipment are scattered in the EMU. On each vehicle in the group, its control method is very different from the traditional locomotive towing passenger car mode. Train communication network is used in train control and monitoring, including all aspects of train fault diagnosis and passenger information system. New services are constantly being applied, such as video surveillance, network diagnosis, passenger information security, image recognition, video query and wireless Ethern...

Claims

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Application Information

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IPC IPC(8): H04L12/931H04L12/801H04L12/24H04L12/46
Inventor 贺德强张军刘旗扬苗剑邱鸿基
Owner GUANGXI UNIV
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