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A kind of TCN network MVB bus physical layer consistency test system and method

A test system and physical layer technology, applied in the field of communication, to facilitate the analysis and realize the effect of automated testing

Inactive Publication Date: 2016-08-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no test platform in China that is specially used for complete pre-delivery testing of MVB equipment in compliance with international protocol standards and has passed certification. There are many inconveniences

Method used

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  • A kind of TCN network MVB bus physical layer consistency test system and method
  • A kind of TCN network MVB bus physical layer consistency test system and method
  • A kind of TCN network MVB bus physical layer consistency test system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1: ESD Connector Test

[0057] 1. Connect the ESD medium to the MVB bus physical layer conformance tester through two 9-pin Sub-D connectors. Connect the MVB bus physical layer conformance tester to the host computer through the ExpressCard34 adapter card. Here, a notebook computer equipped with test software function modules is selected as the host computer. Connect the host computer with the MVB bus physical layer conformance tester through the RS232 interface, turn on the power, and the MVB bus physical layer conformance tester starts to work. The CPU on the board waits for the control signal sent by the host computer through the RS232 interface. The relays in the relay module are disconnected, the high-speed analog switch is disconnected, and the IO port level of the CPU on the board is waiting for the level change. The interface module and signal conditioning module are not powered on. .

[0058] 2. Turn on the host computer and the MVB bus physical layer...

Embodiment 2

[0061] Embodiment 2: ESD signal receiving test

[0062] 1. Connect the ESD medium to the MVB bus physical layer conformance tester through two 9-pin Sub-D connectors, and connect the MVB bus physical layer conformance tester to the host computer through the ExpressCard34 adapter card, which is selected here A laptop equipped with test software function modules is used as the upper computer. Connect the host computer with the MVB bus physical layer conformance tester through the RS232 interface, turn on the power, and the MVB bus physical layer conformance tester starts to work. The CPU on the board waits for the control signal sent by the host computer through the RS232 interface. The relays in the relay module are disconnected, the high-speed analog switch is disconnected, and the IO port level of the CPU on the board is waiting for the level change. The interface module and signal conditioning module are not powered on. .

[0063] 2. Turn on the host computer and the MVB b...

Embodiment 3

[0066] Embodiment 3: EMD signal waveform test

[0067] 1. Connect the EMD medium to the MVB bus physical layer conformance tester through two 9-pin Sub-D connectors, and connect the MVB bus physical layer conformance tester to the host computer through the ExpressCard34 adapter card, which is selected here A laptop equipped with test software function modules is used as the upper computer. Connect the host computer with the MVB bus physical layer conformance tester through the RS232 interface, turn on the power, and the MVB bus physical layer conformance tester starts to work. The CPU on the board waits for the control signal sent by the host computer through the RS232 interface. The relays in the relay module are disconnected, the high-speed analog switch is disconnected, and the IO port level of the CPU on the board is waiting for the level change. The interface module and signal conditioning module are not powered on. .

[0068] 2. Turn on the host computer and the MVB bu...

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Abstract

The invention relates to the field of communication, and aims to provide a system and a method for testing consistency of a TCN network MVB bus physical layer. The test system comprises an upper computer, a MVB bus physical layer consistency tester and a tested device. The test method comprises connection of the upper computer, the MVB bus physical layer consistency tester and the tested device. The test system realizes consistency test of the MVB device physical layer. Test functions of the system include MVB bus physical layer consistency tests which respectively aim at an ESD medium and an EMD medium and are described in 3.2.4 and 3.2.5 of an IEC61375-2. The test system displays elaborate test result data through the upper computer and related waveform images, so as to provide convenience for test personnel to collect and analyze. Through software and hardware control of the test system, each sub-item test can be combined and switched over, thereby realizing automated testing.

Description

technical field [0001] The invention relates to the communication field, in particular to a TCN network MVB bus physical layer consistency test system and method. Background technique [0002] In 1999, the Ninth Technical Committee (TC9) of the International Electrotechnical Commission (IEC) commissioned the 22nd Working Group (WG22) composed of representatives from more than 20 countries and the International Union of Railways to formulate the international standard IEC61375 for data communication of railway equipment —1, that is, the Train Communication Network (TrainCommunicationNetwork), which realizes the standardization and interconnection of the communication network of the train control system composed of on-board microcomputers. Network standard for data communication with diagnostic information. The emergence of this specification immediately attracted the attention of the global railway industry, and all countries gradually applied equipment and buses that confor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
Inventor 刘博李鑫韦巍
Owner ZHEJIANG UNIV