MVB protocol analysis device and method

Abstract

The invention provides an MVB protocol analysis device and method. The device comprises a transceiving module, an MVB communication module and a control module, wherein the transceiving module is usedfor receiving an MVB signal transmitted by an MVB bus, converting the MVB signal into a first logic signal and transmitting the first logic signal to the MVB communication module; the MVB communication module is used for receiving the first logic signal transmitted by the transceiving module, analyzing and detecting the first logic signal to obtain a detection result, and transmitting the detection result to the control module; and the control module is used for receiving the detection result transmitted by the MVB communication module and feeding back the detection result to a user terminal.The system and the method can capture and analyze various MVB signals on a bus and improve the real-time performance and accuracy of fault positioning.

Description

technical field [0001] The invention relates to the technical field of train communication, in particular to an MVB (Multifunction Vehicle Bus, multifunction vehicle bus) protocol analysis device and method. Background technique [0002] At present, the communication protocols of various new types of trains and locomotives mostly adopt the TCN (Train Communication Network) network communication technology stipulated in the international train network communication standard IEC61375-1 to realize the data communication of the train network control system. The TCN network adopts the WTB+MVB two-level bus structure: the train-level train bus WTB (Wire Train Bus) and the vehicle-level multifunctional vehicle bus MVB (Multifunction Vehicle Bus). Among them, MVB is a bus-type topology, which has the advantages of strong real-time performance, fast response speed, and high reliability. MVB bus uses two kinds of data frames: master frame and slave frame. The master frame is sent by...

AI Technical Summary

Problems solved by technology

The current MVB network analyzer can only record data on a specific port, and the recorded data content is limited to slave frame data. This method based on port monitoring is not easy to locate faults, such as when a slave frame loss occurs. , it is impossible to judge whether it is the error of the slave frame caused by the network collision, or the failure to send the slave frame due to the failure of the slave device itself

Moreover, when a network failure occurs, the data in the corresponding time period can only be searched afterwards for analysis, which is not real-time

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