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

A communication link and switching system technology, which is applied in the switching field of slave domain servers and systems, master domain servers, and communication links, and can solve problems such as inability to guarantee normal communication work and data consistency.

Active Publication Date: 2020-04-28
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 following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...

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Abstract

The invention provides a communication link switching method, a master domain server, a slave domain server and a system, and the method comprises: the master domain server determining the current main link and main domain main link information based on the first link state information, and transmitting the main domain main link information to the slave domain server; the slave domain server determining current main link information and slave domain main link information based on the main domain main link information and the second link state information, and feeding back the slave domain mainlink information to the main domain server; and if the slave domain main link information and the OPC server connected with the main link indicated by the master domain main link information are notthe same OPC server, the master domain server determining whether to switch the main link based on the first link state information. And the master domain server and the slave domain server respectively determine whether to switch the main link or not according to the link state information of the master domain server and the slave domain server and the main link information of the opposite side,and ensure that the normal communication work is the same as the connected OPC server, thereby ensuring the consistency of the acquired data.

Description

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

Claims

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Application Information

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IPC IPC(8): H04L29/08
CPCH04L67/14H04L67/141H04L67/568
Inventor 姚罕琦李民陈岚岚朱峰张理成
Owner ZHEJIANG SUPCON TECH