Train gateway redundancy control system and method

Abstract

The invention provides a train gateway redundancy control system and method. The system comprises a first gateway, a second gateway and a central control unit; a redundant link capable of information transmission is connected between the first gateway and the second gateway; each of the first and second gateway is internally provided with an identification module, a bus execution module, a collection module, an information storage module, a determination module, a calling module and a redundancy control module; and the collection module collects information of the other gateway, the determination module determines whether the other gateway is normal, the calling module calls newest main gateway information from the information storage module according to determination information and transmits the newest information to the redundancy control module, and the redundancy control module controls redundancy switching and joins in a bus in a newest information state for execution. According to the redundancy control system and method, after the main gateway has a fault, the standby gateway join in the bus for initial operation according to information of the original main gateway, right competition is avoided, and time of initial operation shortened.

Description

technical field [0001] The invention belongs to the field of train communication, in particular to a control system and method for redundant train gateways. Background technique [0002] The TCN train communication network stipulated in the IEC61375-1 standard is currently the most widely used train communication standard, and my country has also introduced this standard as a recommended standard for China's train communication network. The TCN standard stipulates the two-level bus structure of WTB and MVB to realize the control of the train, that is, the twisted train bus WTB bus connecting each section of vehicles and the multi-functional vehicle bus MVB bus connecting the internal equipment of the vehicles. [0003] According to the TCN standard, the physical layer and link layer of the WTB bus and the MVB bus are different. The train gateway is responsible for realizing the communication protocol conversion between the WTB bus and the MVB bus, and completing the transfer...

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Problems solved by technology

[0006] But the following problems in the above-mentioned prior art: (1) the existing gateway redundancy detection only judges the life signal change situation of the main gateway, and cannot obtain the state information of the main gateway in time, and when the main gateway breaks down, the standby gateway is switched to the main gateway , the backup gateway will join the bus with a new node, which may cause sovereignty competition and prolong the initial running time; because when the WTB bus is running for the first time, the train communication is in a paralyzed state, although there is a logic to ensure safety, the initial running time should be reduced as much as possible; ( 2) The redundant detection link of the existing gateway is a single line. When the redundant link fails, redundant switching will occur by mistake, causing bus confusion and affecting the normal communication of the train network

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