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Method for controlling parallel redundancy of MVB master

A technology of bus master control and redundant control, which is applied in the direction of bus network, data exchange through path configuration, digital transmission system, etc., and can solve problems such as reduced network reliability and availability, affecting vehicle data delivery, and network inability to communicate. , to achieve the effect of improving reliability and availability and realizing multiple redundant designs

Active Publication Date: 2014-05-28
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Problems solved by technology

[0005] (1) In the network system using a single MVB bus master (VCM module), when the MVB bus master fails, the entire network will not be able to communicate, and the control of the vehicle cannot be realized
[0006] (2) In a network system using a single-link bus structure, if the line fails, the data delivery of the entire vehicle will be affected due to the bus-type communication topology
[0007] (3) The MVB bus is a serial bus. Once a point in the network fails, it will affect the communication of all other devices, and the reliability and availability of the network will be greatly reduced.

Method used

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  • Method for controlling parallel redundancy of MVB master
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  • Method for controlling parallel redundancy of MVB master

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as figure 1 As shown, the MVB bus main control parallel redundant control method of the present invention adopts two identical VCM modules as the bus main control module, and the two modules are connected to the network system at the same time to realize the thermal redundancy function and construct a parallel connection Redundant system, that is to form MVB bus main control parallel redundant design, so that two VCM modules can monitor the state of MVB bus at the same time. When the main control module on the MVB bus fails or is lost, the standby main module can perform redundant switching within 10ms to become the bus master and take over the MVB bus; Each determines whether to continue to be the bus master according to the conflict competition algorithm.

[0032] Such as figure 2 As shown, in this embodiment, the ma...

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Abstract

The invention discloses a method for controlling the parallel redundancy of an MVB master. According to the method, two identical VCM modules are used as bus master modules, and the two VCM modules are connected into a network system simultaneously and monitor the state of an MVB simultaneously; under the condition that a master module on the MVB has a failure or is lost, a standby main module conducts redundancy switch, becomes a bus master and takes over the MVB. The method for controlling the parallel redundancy of the MVB master has the advantages that the principle is simple, and the reliability and the usability of the whole network system can be improved.

Description

technical field [0001] The invention mainly relates to the technical field of vehicle network control, in particular to a MVB main control parallel redundant control method suitable for vehicle network control. Background technique [0002] At present, in locomotives, subways, urban rail, bullet trains and other models, it is a trend to control the operation of vehicles through the network, and there are more and more demands for network-controlled vehicles, and the requirements are getting higher and higher. The reliability and availability of the network It is also relatively demanding. According to the functional structure, the train communication network TCN is divided into a twisted train bus WTB (Wire Train Bus) and a multifunctional vehicle bus MVB (Multifunction Vehicle Bus). The MVB bus master (VCM module), as the vehicle logic master and network bus manager of the network control system, its reliability and availability directly determine the reliability and avail...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40H04L12/24H04L1/22
Inventor 周桂法宁侨肖家博韩露刘军易伟民邹智荣
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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