An mvb master device supporting dynamic reconnection of mvb bus

A master device and reconnection technology, applied in the direction of bus network, digital transmission system, data exchange network, etc., can solve the problems of insufficient cost or efficiency, unfavorable system monitoring real-time performance, improvement, etc., and achieve the effect of excellent real-time performance

Active Publication Date: 2019-03-08
WUHAN ZHENGYUAN ELECTRIC
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Problems solved by technology

These strategies all have insufficient cost or efficiency, and when the WTB bus is introduced, it will bring additional communication delay, which is not conducive to the improvement of real-time system monitoring

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  • An mvb master device supporting dynamic reconnection of mvb bus

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0016] see figure 1 , is a schematic structural diagram of an MVB master device 100 supporting dynamic reconnection of an MVB bus provided by an embodiment of the present invention. The MVB master device 100 that supports dynamic reconnection of the MVB bus can be applied to urban rail trains, locomotives, EMUs, and other trains that use the MVB bus for communication connection. Moreover, corresponding to each MVB network segment 200 of the MVB bus of the tra...

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Abstract

The invention discloses MVB master equipment for supporting dynamic reconnection of a MVB bus. One MVB master equipment is correspondingly arranged in each MVB network segment of the MVB bus of a train; the MVB master equipment comprises a master equipment body and a plurality of MVB slave equipment positioned in the same MVB network segment of the master equipment; furthermore, the master equipment body and the plurality of MVB slave equipment are in communication connection; and furthermore, each the master equipment body comprises a relay for disconnecting physical connection in the two reconnection directions. The MVB master equipment disclosed by the invention has the benefits that: the MVB master equipment can detect reconnection / disconnection actions of adjacent two segments of MVB buses, and automatically trigger re-distribution of related node addresses and port addresses of various MVB equipment in respective buses after communication handshake; and thus, the dynamic reconnection function of the MVB bus is realized.

Description

technical field [0001] The invention relates to the technical field of train communication, in particular to an MVB master device supporting dynamic reconnection of an MVB bus. Background technique [0002] The current train communication network based on the IEC61375 international standard usually uses a fixed-configuration MVB bus to achieve vehicle-level communication control. Due to the effective networking span of more than 200m, the MVB bus using the transformer coupling access mode (EMD) is also often used as a cross-vehicle short marshalling network communication carrier. [0003] The traditional MVB technology uses a fixed network configuration, so it is necessary to introduce a train-level network with dynamic grouping functions, such as the WTB bus, when performing network expansion or reconnection; or manually reassign the addresses of all devices in the MVB bus. These strategies all have cost or efficiency deficiencies, and when the WTB bus is introduced, it wi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/40H04L12/26
CPCH04L12/40006H04L12/40032H04L43/0811H04L2012/40293
Inventor 胡奔孙得金刘波姜风光席海山柴忠民谢景阳张登阳鹏
Owner WUHAN ZHENGYUAN ELECTRIC
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