Redundant crossing ring data bus network topological structure

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...

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 standards" ( Fiber Channel and related standards) article, which introduces the ring topology that Fiber Channel usually uses, but there is also a failure of one or more nodes in the data bus, which will cause the link to be interrupted, making the data cannot transmit correctly

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