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Method for testing redundancy switching between line A and line B of MVB network card and scene setting method

A technology of redundant switch and network card, which is applied in the direction of data exchange through path configuration, bus network, data exchange network, etc., and can solve problems such as the lack of perfect testing specifications and methods for testing the redundancy switch function of the AB line of the MVB network card

Active Publication Date: 2014-01-15
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that there is no perfect test specification and method for testing the redundant switching function of the AB line of the MVB network card

Method used

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  • Method for testing redundancy switching between line A and line B of MVB network card and scene setting method
  • Method for testing redundancy switching between line A and line B of MVB network card and scene setting method

Examples

Experimental program
Comparison scheme
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Embodiment

[0051] The MVB network AB road test platform of the present embodiment comprises following equipment:

[0052]MVB network card to be tested, referred to as IUT; industrial control computer A, connected to the MVB network card to be tested through the PC104 interface, used to execute test cases; standard MVB network cards TE1 and TE2, with bus management capabilities, connected to the MVB network card to be tested through the MVB bus , for normal data communication. Industrial control computers B1 and B2 are respectively connected to standard MVB network cards TE1 and TE2 through the PC104 interface to execute test cases; the MVB network monitoring program runs on industrial control computer A to read the device status of the corresponding address device on the network word information.

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Abstract

The invention discloses a method for testing redundancy switching between a line A and a line B of an MVB network card. The method comprises the steps of setting an interfered line section A and an interfered line section B, setting the correct working status of each time frame of the tested MVB network card, testing the line A between network cards, testing the line B between the network cards, and integrating the status of the tested MVB network card when the line A and the line B are tested to judge the reliability of the redundancy switching between the line A and the line B of the tested MVB network card. Meanwhile, the invention further discloses a scene testing method for testing the redundancy switching between the line A and the line B of the MVB network card. Under the different scenes, the method for testing the redundancy switching between the line A and the line B of the MVB network card is applied to test the MVB network card so as to test the fault tolerance of the tested MVB network card.

Description

technical field [0001] The invention relates to the field of hardware testing, in particular to a method for testing redundant switchover of AB lines of an MVB network card and a scene setting method. Background technique [0002] The Multifunction Vehicle Bus (MVB) network is an essential part of the Train Communication Network (TCN). Compared with other common fieldbus LonWorks, WordFIP, CAN, etc., compared with the application on the train, MVB has the advantages of real-time performance, reliability of AB redundant switching, manageability, medium access control method, addressing mode, communication There are certain advantages in terms of service types and so on. In order to ensure the reliability of AB redundant switching, the MVB network can adopt a dual-line redundancy scheme consisting of two communication lines, A line and B line. One of these two lines is used as a trust line, and the other is used as a redundant line. The two lines receive data from the MVB ne...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L29/08H04L12/40
Inventor 孙家广张荷花
Owner TSINGHUA UNIV
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