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Communication link switching method, master domain server, slave domain server and system

A communication link and server technology, applied in transmission systems, electrical components, etc., can solve problems such as inability to guarantee data consistency and normal communication work, and achieve the effect of ensuring consistency

Active Publication Date: 2022-07-05
ZHEJIANG SUPCON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a communication link switching method, a master domain server, a slave domain server and a system, and solves the problem that the communication mode of the existing DCS monitoring system cannot guarantee normal communication work and data consistency The problem

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  • Communication link switching method, master domain server, slave domain server and system
  • Communication link switching method, master domain server, slave domain server and system
  • Communication link switching method, master domain server, slave domain server and system

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Embodiment Construction

[0063] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0064] In this application, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also no Other elements expressly listed, or which are also inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the ph...

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Abstract

The present invention provides a communication link switching method, a master domain server, a slave domain server and a system. The master domain server determines the current master link and the master domain master link information based on the first link state information, and sends the master link to the master domain. The domain master link information is sent to the slave domain server; the slave domain server determines the current master link and slave domain master link information based on the master domain master link information and the second link state information, and sends the slave domain master link information. The link information is fed back to the primary domain server; if the OPC server connected to the primary link indicated by the secondary domain primary link information and the primary domain primary link information is not the same OPC server, the primary domain server determines based on the first link state information Whether to switch the main link. The master domain server and the slave domain server determine whether to switch the master link according to their own link status information and the other party's master link information respectively, to ensure that the normal communication work is the same as the connected OPC server, so as to ensure the consistency of the acquired data.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for switching a communication link, a master domain server, a slave domain server and a system. Background technique [0002] In the industrial field, industrial data is usually processed by a distributed control system (Distributed Control System, DCS). In the process of processing industrial data, the DCS monitoring system usually needs to connect with the OPC servers of other DCS manufacturers to obtain OPC data. [0003] At present, for the safety of industrial data, two redundant OPC servers are usually configured. The primary domain server and the secondary domain server in the DCS monitoring system are connected to the OPC server in a one-to-one manner, that is, the primary domain server is connected to one OPC server, and the secondary domain server is connected to another OPC server. However, on the one hand, the server in the DCS monitoring s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/148H04L67/141H04L67/568
CPCH04L67/14H04L67/141H04L67/568
Inventor 姚罕琦李民陈岚岚朱峰张理成
Owner ZHEJIANG SUPCON TECH