A kind of ethernet bus network test equipment

Abstract

The invention discloses an Ethernet bus network testing device, which is connected in series to the Ethernet bus to be tested, including: a multi-channel Ethernet access port module, a multi-channel Ethernet port physical layer module, a heterogeneous platform and multiple Channel high sampling rate waveform acquisition module; the multi-channel Ethernet access port module transmits the Ethernet physical medium waveform signal in the Ethernet bus to be tested to the multi-channel Ethernet port physical layer module and the multi-channel high sampling rate waveform acquisition module. The channel Ethernet port physical layer module realizes the signal conversion between the multi-channel Ethernet access port module and the heterogeneous platform. The multi-channel high sampling rate waveform acquisition module collects and stores waveform data, and transmits the waveform data to the heterogeneous platform. Platform, heterogeneous platform for signal replication, and test according to the test item parameters sent by the host computer. The invention realizes the non-invasive test to the Ethernet bus, saves time and effort, and greatly reduces the amount of data processing.

Description

technical field [0001] The invention relates to the technical field of network debugging, and more specifically relates to an Ethernet bus network testing device. Background technique [0002] In recent years, most of the newly built rail transit trains are dual-network control vehicles, that is, ECN (Ethernet ConsistNetwork, Ethernet) is used as the main vehicle control network, and TCN (Train Communication Network, train communication network) is used as the backup vehicle control network. TCMS (Train Control and Management System, Train Control and Management System) is a symbol of transition from TCN to ECN. [0003] At present, the TCN network is relatively mature and has been debugged before leaving the factory. The Ethernet network is still immature and belongs to the integrated debugging of the research and development stage. Therefore, the Ethernet-controlled car is still in the stage of experience accumulation, and many problems will be encountered in the actual d...

AI Technical Summary

Problems solved by technology

However, this test method requires artificially adding a dedicated collection interface, which changes the network topology. At the same time, in order to collect all network data, all data on the network needs to be sent out through a dedicated collection interface, which increases the network load.

Moreover, this test method is time-consuming and labor-intensive, and due to the large amount of data that needs to be processed, not only is it not easy to find the problems in the test, but it is also impossible to determine whether the cause of the problem is caused by the change of the network topology.

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