Redundancy communication method among nodes based on multiple networks

A redundant communication, inter-node technology, applied in the field of communication, can solve the problems of repeated data processing, high cost, high failure rate, and achieve the effect of reducing requirements, improving processing speed, and reducing costs

Inactive Publication Date: 2013-03-13
上海亨钧科技股份有限公司
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Problems solved by technology

In these industries, the reliable reception of data is usually guaranteed through redundant communication. Redundant communication can be realized through hardware or

Method used

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  • Redundancy communication method among nodes based on multiple networks
  • Redundancy communication method among nodes based on multiple networks

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Embodiment Construction

[0013] The hardware basis of applying the redundant communication method of the present invention is as figure 1 As shown, N mutually independent network interfaces are configured for each node, and the N network interfaces of each node are respectively connected to physically independent Ethernet networks 1 to N, so that each node has N independent Ethernet channels (the independence here refers to the Ethernet channels of the same node, not the independence of the Ethernet channels between nodes), and the network interfaces of all nodes have different IP addresses, where N is A natural number greater than or equal to 2. figure 1 In the shown embodiment, there are M nodes, namely node 1, node 2, until node M, where M is a natural number greater than or equal to 2, M nodes are all hung on N Ethernets, and the N network interfaces of each node are connected to The Ethernet 1 network is connected to the N network in a one-to-one correspondence.

[0014] The redundant communica...

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Abstract

The invention discloses a redundancy communication method among nodes based on multiple networks. The method includes that sender nodes send data to a receiver node through N Ethernet channels simultaneously, and the sender nodes give different frame numbers to data sent each time. The receiver node extracts a data frame from a receive data frame list and judges whether the current extracted data frame is processed according to a current extracted data frame number and a sender node which the current extracted data frame number belongs to. On no judgment, data processing is conducted, and the current extracted data frame number and the sender node which the current extracted data frame belongs to are related. The redundancy communication method is achieved mainly through software, requirements for hardware are reduced, a common network device can achieve the method, and cost of a hardware redundancy device is reduced. In addition, the redundancy communication method avoids repeated processing on the same data by introducing a judging mechanism, and processing speed is increased.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a redundant communication method between nodes based on multiple networks. Background technique [0002] In the field of communication, the reliable transmission of data is of great significance, especially in industries that endanger the safety of people's lives and property, such as railway transportation. In these industries, the reliable reception of data is usually guaranteed through redundant communication. Redundant communication can be realized through hardware or software. Realization through hardware has defects of high cost and high failure rate, while realization through software has data duplication processing. The problem. Contents of the invention [0003] The purpose of the present invention is to provide a redundant communication method which can avoid repeated data processing through software. [0004] The technical scheme adopted by the present invent...

Claims

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Application Information

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IPC IPC(8): H04L12/713H04L45/586
Inventor 徐志豪王建强陈真叶辉汪柏寿李金德
Owner 上海亨钧科技股份有限公司
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