Ethernet bus network test equipment

Abstract

The invention discloses Ethernet bus network test equipment which is connected in series in an Ethernet bus to be tested and comprises a multi-channel Ethernet access port module, a multi-channel Ethernet port physical layer module, a heterogeneous platform and a multi-channel high-sampling-rate waveform acquisition module, the multi-channel Ethernet access port module transmits Ethernet physicalmedium waveform signals in an 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 multi-channelEthernet port physical layer module realizes signal conversion between the multi-channel Ethernet access port module and the heterogeneous platform. The multi-channel high-sampling-rate waveform acquisition module acquires waveform data and stores the waveform data, and transmits the waveform data to the heterogeneous platform, and the heterogeneous platform performs signal replication and performs testing according to test item parameters sent by the upper computer. According to the invention, the non-intrusive test of the Ethernet bus is realized, time and labor are saved, and the data processing amount is greatly reduced.

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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