Redundant crossing ring data bus network topological structure

A technology of ring data and bus network, which is applied in the field of network structure in the field of communication technology, can solve problems such as link interruption and incorrect data transmission, and achieve the effect of improving reliability

Inactive Publication Date: 2006-03-29
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For these network topologies, when one or more nodes in the data bus fail, the link will be interrupted, so that the data cannot be transmitted correctly
[0003] Through literature search to the prior art, it is found that Sachs, M.W. published "Fibre Channel and related stand

Method used

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  • Redundant crossing ring data bus network topological structure
  • Redundant crossing ring data bus network topological structure
  • Redundant crossing ring data bus network topological structure

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Such as figure 2 As shown, when a certain node of the data bus fails, the connection mode of the data bus of the present invention is that two adjacent nodes of the failed node are connected to each other through a cross link and a backup unit of the failed node to form a closed link. Thereby ensuring the correct transmission of data.

example 2

[0017] Such as image 3 As shown, when a certain node of the data bus and the backup unit fail at the same time, the connection mode of the data bus of the present invention is that two adjacent nodes of the failed node are directly connected through a bypass link. The data of the node, but the entire data bus still forms a closed link, which can ensure that other nodes can send and receive data correctly.

example 3

[0019] Such as Figure 4 As shown, when the two adjacent nodes of the data bus and the backup unit of one of the nodes fail, the connection mode of the data bus of the present invention is that the adjacent nodes of the two nodes pass through the bypass link and the cross link Cooperating with each other, the entire data bus still forms a closed link, thereby ensuring the correct transmission of data.

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Abstract

This invention relates to a network topology of a redundant cross ring data bus line in the communication technology field, which adds a backup unit to each node of a ring topology of the current data bus, designs three pairs of T-R devices in each node and its backup unit. When the nodes are connected to each other via the first T-R device, they constitute a backbone link, when the backup units are connected via the first T-R device, they make up of a backup link, when the nodes or the backup units are connected with the alternate nodes or backup units via the second T-R device, they form a bypass link, the third T-R device of each node is connected with the adjacent backup units, the third T-R device of the backup unit is connected with adjacent nodes to make up of a cross link.

Description

technical field [0001] The invention relates to a network structure in the technical field of communication, in particular to a redundant cross ring data bus network topology. Background technique [0002] The data bus, also known as the data trunk line, is a communication system composed of a bus communication control device, a transmission medium, a network topology, and a communication protocol. With the extensive application of electronic equipment in mobile platforms such as aerospace vehicles and vehicles, electronic integrated systems based on bus technology have developed rapidly. The bus network in mobile platforms such as aerospace vehicles and vehicles must not only achieve the purpose of functional integration through information cross-linking, but also meet the real-time requirements of each functional subsystem. Compared with the bus technology in the general sense, it requires extremely high reliability. There are strong mechanical vibration and electromagne...

Claims

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Application Information

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IPC IPC(8): H04L12/42H04L12/437
Inventor 宋宁李孝鹏殷宗敏
Owner SHANGHAI JIAO TONG UNIV
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