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Dual-network redundancy link system and communication node

A communication node and link system technology, which is applied in the dual network redundant link system and communication node field, can solve problems such as inability to support controller redundancy design and system downtime, and achieve real-time performance and high efficiency with low hardware cost. cost, and the effect of reducing data judgments

Pending Publication Date: 2019-01-29
中电智能科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Please refer to figure 1 , the controllers and communication nodes between the existing redundant links are usually connected to each other to form a loop, and redundancy can be achieved to a certain extent through the loop, such as figure 1 As shown, the ring can accommodate at most one fault point, that is, when a fault point occurs in the ring, the link connection between the controller and each control node can still be maintained, but if more than one fault point occurs in the ring At this point, some devices will completely disconnect from other devices in the link, causing system downtime
And a loop can only use a single controller, which cannot support controller redundancy design

Method used

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  • Dual-network redundancy link system and communication node
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  • Dual-network redundancy link system and communication node

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Embodiment Construction

[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0040] In the description of this application, it should be noted that the orientation or positional re...

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Abstract

The invention provides a dual-network redundancy link system and a communication node, which relate to the field of communication control. The system comprises a master station and a slave station, wherein the master station comprises a first control device and a second control device in communication connection; the first control device and the slave station are connected to form a first ring network topology structure; the second control device and the slave station are connected to form a second ring network topology structure; the slave station comprises at least one communication node, and two communication links exist between the communication node and the master station or other communication nodes; the communication node comprises two communication units, the communication unit comprises a communication chip and a control chip which are electrically connected, and the communication chip is used for communication connection with other communication nodes or the first control device or the second control device through one of the two communication links according to a selection control command of the control chip. Thus, the system at most allows three communication links to fail, thereby greatly improving the reliability of the system and meeting link redundancy and controller redundancy.

Description

technical field [0001] The application relates to the field of communication control, in particular, to a dual-network redundant link system and a communication node. Background technique [0002] At present, in the connection of network equipment, the connection of a single link is easy to realize, but a simple fault in a single link will disconnect the link and cause network interruption. Therefore, in the actual communication network construction, In order to maintain the stability of the network, some backup connections (also called backup links or redundant links) are usually added in a network environment composed of multiple communication nodes, so as to improve the stability of the network. [0003] Please refer to figure 1 , the controllers and communication nodes between the existing redundant links are usually connected to each other to form a loop, and redundancy can be achieved to a certain extent through the loop, such as figure 1 As shown, the ring can accom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437H04L12/24H04L1/22
CPCH04L1/22H04L12/437H04L41/0668
Inventor 赵德政丰大军范文斌陈海徐振国赵乾伟张彪霍书侠刘琛
Owner 中电智能科技有限公司
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