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OPC UA information model automatic construction method based on structured database

An information model and automatic construction technology, applied in the field of industrial automation, can solve problems such as tediousness, low work efficiency, and heavy workload, and achieve the effect of long time-consuming, heavy workload, and clear format

Pending Publication Date: 2021-04-02
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, for each type of equipment in the factory, manual construction operations are required, which is heavy and cumbersome, and the work efficiency is low

Method used

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  • OPC UA information model automatic construction method based on structured database
  • OPC UA information model automatic construction method based on structured database
  • OPC UA information model automatic construction method based on structured database

Examples

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example

[0052] The effect of the method proposed in the present invention will be further described below in conjunction with a simulation example.

[0053] image 3 Shown is the schema information of a public MySQL database obtained from the Internet, and the content is related to movies. Here, it is only used as an example to illustrate the effect of the invention. Users can seamlessly migrate the method of the invention to their own industry-related MySQL databases. Depend on image 3 It can be seen that the movie (movie) entity contains attributes such as id, title, and introduction, and there is a person_to_movie foreign key association with the person (actor) entity.

[0054] First, the above database schema information is mapped and converted, and the content of the generated OWL file is as follows:

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[0067] It can be seen that the data table person ...

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Abstract

The invention discloses an OPC UA information model automatic construction method based on a structured database, which mainly solves the problems of high professional knowledge requirement, large workload and the like of manual construction of an OPC UA information model during traditional factory interconnection and interworking upgrading and reconstruction, and comprises the following implementation steps: importing an existing structured database of a production line; analyzing database mode information containing equipment and attributes, and mapping the database mode information into a triple set; generating an OWL file based on the triple; mapping to generate an XML file; converting to generate an information model XML file conforming to the OPC UA specification; generating a. C file and a. H file; creating an OPC UA server, and instantiating the information model. Starting from the requirement of automatically and efficiently constructing the OPC UA information model, the information model is automatically constructed according to the defined mapping rule on the basis of the existing structured database, so that the tedious operation of manually constructing the informationmodel one by one during OPC UA data communication transformation is greatly reduced, the transformation efficiency is improved, the practicability is high, the practicability is high, and wide application prospects are realized.

Description

technical field [0001] The invention belongs to the technical field of industrial automation, and in particular relates to a method for constructing an OPC UA information model, in particular to a method for automatically constructing an OPC UA information model based on a structured database, which can be used for the intelligent transformation of a traditional production line in a factory. Background technique [0002] The Industrial Internet is the product of the continuous deep integration of the new generation of information and communication technology and advanced manufacturing technology. Due to the increasing complexity of industrial systems and the continuous expansion of application scale, the instruments, PLCs and other equipment in the production line come from different manufacturers, adopt different physical interfaces, different industrial communication protocols and data formats, and the industrial Internet has massive variations There are still a lot of pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/21G06F16/25G06F16/22G06F16/84
CPCG06F16/21G06F16/258G06F16/2282G06F16/84
Inventor 任彤翁其艳陈积明史治国贺诗波王荣凯
Owner ZHEJIANG UNIV
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