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Method and device for simulating CRH2 train network

A train communication network and simulation technology, which is applied in the ring network, data exchange network, data exchange through path configuration, etc., can solve problems such as incorrect simulation results, unconvincing data acquisition, and inconsistent network structures

Inactive Publication Date: 2017-09-19
CENT SOUTH UNIV
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of "the network structure does not match the reality" in the traditional CRH2 train communication network simulation method, thereby solving some problems such as incorrect simulation results and unconvincing data acquisition.

Method used

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  • Method and device for simulating CRH2 train network
  • Method and device for simulating CRH2 train network
  • Method and device for simulating CRH2 train network

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Experimental program
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Embodiment Construction

[0024] see figure 2 , in the network model adopted in this embodiment, master1 and master2 are two central nodes, and node1 to nodeN are N terminal nodes, corresponding to N carriages respectively. Connecting these nodes is a double-ring network, which is mainly responsible for transmitting train-level network information.

[0025] Since the simulation system corresponding to this method is realized based on OPNET software, the specific implementation will be designed from three levels: network model, node model and process model.

[0026] 1. Network model design

[0027] The CRH2 train is composed of 4M4T, with a total of 8 carriages. Among them, the 2nd, 3rd, 6th, and 7th cars are motor cars, and the rest are trailers. Each car has a terminal unit and cars 1 and 8 each have a central unit. The central device has the functions of train information management and data transmission to the train information terminal device; the terminal device realizes the information trans...

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Abstract

The invention discloses a method and a device for simulating a CRH2 train network. By arranging a node model including a central node and a terminal node, through mutual communication connection through a double-loop network bus, a network model is formed. The node model is achieved through a data generation module, a data control module, an ARCNET protocol achieving module and a looped network data receiving and sending port. The data control module is in communication connection with the data generation module, the data control module and the ARCNET protocol achieving module and the looped network data receiving and sending port. The technical effects are that compared with a traditional CRH2 network simulation method, the structure adopted by the provided network simulation method is consistent with the actual network structure, so the CRH2 train communication network can be quite precisely simulated, and quite persuasive data can be acquired.

Description

technical field [0001] The invention relates to a method and device for simulating a CRH2 train communication network. Background technique [0002] With the continuous improvement of train speed in my country, China's high-speed railway has entered a stage of leapfrog development. Compared with traditional trains, high-speed trains need to process more and more information, such as train control, status monitoring, fault diagnosis, passenger service and other information. In order to meet the above needs, the train communication network came into being. It can centrally manage and control the above-mentioned large amount of information, and allow the above-mentioned huge amount of information to be transmitted on the entire train safely, efficiently, quickly, reliably and accurately. Therefore, for the train, the train communication network is of great significance. [0003] The CRH2 train information transmission system transmits information through the bus running thro...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/42H04L29/08
Inventor 刘雄飞周锋
Owner CENT SOUTH UNIV
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