KR102288068B1 - Cpps automatic construction system through centric opc-ua modeling - Google Patents

Abstract

A CPPS automatic construction system is provided through central OPC UA modeling. The CPPS automatic construction system through the central OPC UA modeling is a factory CPPS model; and a central OPC UA server interworking with the factory CPPS model, wherein the factory CPPS model comprises: a CPPS node control module that configures and manages a CPPS factory topology in which a plurality of field devices in a physical area are virtualized in a hierarchical structure, OPC UA Including a CPPS logic control module that calls a function defined in modeling or manages additionally necessary functions in a CPPS node, and a product process control module that manages processing logic related to the factory's unique product process, the central OPC UA The server includes: a central OPC UA address space in which the plurality of field devices and the virtualized OPC UA model of the CPPS factory topology are integrated according to the overall hierarchical structure, a CPPS connection OPC UA module for interworking with the factory CPPS model, and an external system An information exchange service module that exchanges data and transmits data to the external system, an OPC UA-CPPS node creation module that dynamically and automatically creates a system connection for interworking the factory CPPS model and a central OPC UA client, and the plurality of and a central OPC UA client communicating with a field device through an OPC UA session, wherein the OPC UA-CPPS node creation module parses the OPC UA model to parse the factory CPPS model CPPS node control module, CPPS logic control module, and product process The properties and codes required for the control module can be automatically generated.

Description

CPPS automatic construction system through central OPC UA modeling {CPPS AUTOMATIC CONSTRUCTION SYSTEM THROUGH CENTRIC OPC-UA MODELING}

The present invention relates to an automatic CPPS construction system through central OPC UA modeling, and more particularly, smart factory CPPS system operation through OPC UA modeling by utilizing the central OPC-UA server during initial construction and additional construction in the smart factory CPPS system. It relates to a CPPS automatic construction system through central OPC UA modeling that automatically creates a processor for a smart factory CPPS system without interruption of

A virtual physical system (CPS) implements the physical domain identically in cyber using technologies such as IoT (Internet of Things) and ICT (Information & Communication Technology), It is transmitted in real time over cyber, and it means to give feedback to the physical realm through process processing in cyber. In addition, the smart factory implements CPS through data collection and exchange with machines, actuators, sensors, etc. installed in the actual factory, which is called a Cyber Physical Production System (CPPS).

In such a virtual physical production system, connection of various devices constituting a factory is essential, but there is a problem in that such connection is not easy due to the diversity of devices constituting the factory. For this purpose, OPC-UA (Open Platform Communication Unified Architecture) standard has been provided, but there is a problem in that it is difficult to apply to an actual smart factory because virtual physical production systems based on the OPC-UA standard are not specifically presented.

The problem to be solved by the present invention is to automatically generate a processor for the smart factory CPPS system without interruption of the smart factory CPPS system operation through OPC UA modeling by utilizing the central OPC-UA server during initial and additional construction in the smart factory CPPS system. It is to provide a CPPS automatic construction system through the central OPC UA modeling that creates it.

The problem to be solved by the present invention is to provide a CPPS automatic construction system through central OPC UA modeling that models OPC UA to accommodate the smart factory system.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

CPPS automatic construction system through central OPC UA modeling according to an embodiment of the present invention for solving the above-described problems, a factory CPPS model; and a central OPC UA server interworking with the factory CPPS model, wherein the factory CPPS model comprises: a CPPS node control module that configures and manages a CPPS factory topology in which a plurality of field devices in a physical area are virtualized in a hierarchical structure, OPC UA Including a CPPS logic control module that calls a function defined in modeling or manages additionally necessary functions in a CPPS node, and a product process control module that manages processing logic related to the factory's unique product process, the central OPC UA The server includes: a CPPS connection OPC UA module for interworking with the factory CPPS model, an information exchange service module for exchanging data with an external system and transmitting data to the external system, for interworking with the factory CPPS model and a central OPC UA client an OPC UA-CPPS node creation module that dynamically and automatically creates a system connection, and a central OPC UA client that communicates with the plurality of field devices through an OPC UA session, wherein the OPC UA-CPPS node creation module is an OPC UA model can be parsed to automatically generate attributes and codes required for the CPPS node control module, CPPS logic control module, and product process control module of the factory CPPS model.

In an embodiment of the present invention, the central OPC UA client includes an individual OPC UA address space for the virtualized OPC UA model of the plurality of field devices, the individual OPC UA address space and the central OPC UA address Physically identical nodes in the space may be mapped to each other, and data transmitted from the distributed OPC UA server may be delivered to the central OPC UA address space in real time.

In an embodiment of the present invention, the information exchange service module may periodically transmit data in the central OPC UA address space to a distributed OPC UA client corresponding to the external system in an asynchronous message manner or through an OPC UA session. there is.

In one embodiment of the present invention, the OPC UA-CPPS node generation module parses the OPC UA model corresponding to the plurality of field devices to be added or changed, and uses the parsing result to create the central OPC UA server. Data may be added or changed in the central OPC UA address space and in the individual OPC UA address space of the central OPC UA client.

In an embodiment of the present invention, the OPC UA-CPPS node generation module parses the OPC UA model corresponding to the plurality of field devices to be added or changed, and uses the parsing result to form a layer of the OPC UA model Automatically add or change a node corresponding to the OPC UA model in the CPPS factory topology of the CPPS node control module according to the structure, and set the node of the CPPS factory topology to a physically identical node in the central OPC UA address space It can be mapped automatically.

In an embodiment of the present invention, the OPC UA-CPPS node generating module may receive the OPC UA model corresponding to the plurality of field devices to be added or changed through an external OPC UA model means.

In an embodiment of the present invention, the OPC UA-CPPS node generation module comprises: OPC UA model parser means for parsing the OPC UA model in the properties of the OPC UA model; OPC UA generating means for automatically generating an OPC UA node using the result of the OPC UA model parser means; and CPPS node generating means for automatically generating a CPPS logic function corresponding to the OPC UA model in the CPPS logic control module based on a plane call defined in the method node of the OPC UA model.

In an embodiment of the present invention, the CPPS-connected OPC UA module transmits changes in data generated in the central OPC UA address space, or alarm and event data generated by the information exchange service module, to the factory CPPS model. can transmit

In an embodiment of the present invention, the CPPS node control module may reflect changes in data received from the CPPS-connected OPC UA module to the CPPS factory topology, or display the notification and event data.

In an embodiment of the present invention, the CPPS node control module may automatically add or change a predetermined node to the CPPS factory topology using data received from an external OPC UA or a communicator system.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, the smart factory CPPS system automatically creates a processor for the smart factory CPPS system without interruption of operation of the smart factory CPPS system through OPC UA modeling by utilizing the central OPC-UA server during initial and additional construction, It is possible to continuously operate the smart factory CPPS system.

According to the present invention, horizontal data distribution and It can improve the reliability and efficiency of the exchange operation. At the same time, data loss, system performance degradation, and real-time processing delay can be reduced to minimize operation time and reduce costs.

According to the present invention, the OPC-UA data model in the integrated environment models OPC UA using the IEC 62541 OPC-UA standard to actively cope with the application of new standards or the addition of new factory objects such as facilities, sensors and robots. can

According to the present invention, the OPC-UA data model in the integrated environment uses the IEC 62541 OPC-UA standard to model OPC UA, so IT technology such as application, cloud, IOT, edge computing, and technical, time and cost problems are eliminated. Interoperability may be easy.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a diagram schematically illustrating the configuration of a CPPS automatic construction system through central OPC UA modeling according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a communication relationship between the OPC UA-CPPS node creation module of the central OPC UA server shown in FIG. 1 and the factory CPPS model.
FIG. 3 is a diagram illustrating a data communication relationship between the CPPS-connected OPC UA module and the CPPS node control module in FIG. 1 .
4 is a diagram illustrating an operation method of the OPC UA-CPPS node generating module shown in FIGS. 1 and 2 .
5 is a diagram schematically illustrating the configuration of a CPPS automatic construction system through central OPC UA modeling according to another embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully understand the scope of the present invention to those skilled in the art, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless specifically defined explicitly.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe the correlation between a component and other components. A spatially relative term should be understood as a term that includes different directions of components during use or operation in addition to the directions shown in the drawings. For example, when a component shown in the drawing is turned over, a component described as “beneath” or “beneath” of another component may be placed “above” of the other component. can Accordingly, the exemplary term “below” may include both directions below and above. Components may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically illustrating the configuration of a CPPS (Cyber Physical Production System) automatic construction system through central OPC UA modeling according to an embodiment of the present invention, and FIG. 2 is a central OPC UA server shown in FIG. It is a diagram showing the communication relationship between the OPC UA-CPPS node creation module and the factory CPPS model 2, and FIG. 3 is a diagram showing the data communication relationship between the CPPS connection OPC UA module and the CPPS node control module in FIG. , FIG. 4 is a diagram illustrating an operation method of the OPC UA-CPPS node generating module shown in FIGS. 1 and 2 .

First, referring to Figures 1 and 2, the CPPS automatic construction system 1000 through the central OPC UA modeling is the central OPC UA server (1), the factory CPPS model (2), the external system (3) and the physical OPC UA server (4) may be included. At this time, the central OPC UA server (1), the factory CPPS model (2), the external system (3) and the physical OPC UA server (4) may be electronic devices such as smartphones, tablets, desktop PCs, laptop PCs, netbook computers, etc. Or, it may include some of the components of the electronic device or may be configured in various forms capable of interworking therewith.

In this embodiment, the central OPC UA server 1, the factory CPPS model 2 and the external system 3 are located in the virtual area A, and the physical OPC UA server 4 is located in the physical area B. can do. Here, the virtual area A may be an area in which data can be shared in a cloud environment, and the physical area B may be an area in which a plurality of field devices B1, ..., Bn are dispersedly located.

And, OPC UA (Open Platform Communication Unified Architecture) of the present invention is a technology that can manage various commercial communication technologies in an integrated manner. OPC UA has a basic information model and can model logical objects using the basic information model.

OPC UA (IEC62541) was standardized as IEC62541 in the IEC TC57 group in December 2012. Early OPC was classified as Classic OPC (OPC DA, OPC AC, OPC HDA, OPC XML-DA). OPC UA integrates the functions of the Classic OPC standards and adds SOA (Service Oriented Architecture) technology.

In OPC UA, Classic OPC, information models defined by other organizations, and data defined by vendors can all be expressed as OPC information models. In addition, a meta model called OPC UA address space provided by OPC UA is defined along with a general information model based on an object type.

OPC UA is modeled on the following principles: i) OPC UA modeling uses object-based technologies such as information layering and inheritance. ii) Type information can be accessed by instantiation. iii) There are no restrictions on the information model method to provide data used by various machines. iv) It is always done on the server side. OPC UA can provide not only complex information models, but also simple information models. The modeling concept of OPC UA is expressed as a node. Each node contains attributes such as id and name.

The central OPC UA server (1) includes a central OPC UA address space (10), a CPPS connection OPC UA module (11), an OPC UA-CPPS node creation module (12), a central OPC UA client (13), an information exchange service module ( 14) and may include an OPC UA storage module 15 .

The central OPC UA address space 10 integrates the CPPS factory topology of the factory CPPS model 2 and the OPC UA model virtualized with a plurality of field devices B1, ..., Bn in the physical area B according to the overall hierarchical structure. can do.

CPPS connection OPC UA module 11 may work with the factory CPPS model (2).

The OPC UA-CPPS node creation module 12 may dynamically and automatically create a system connection for interworking the factory CPPS model 2 and the central OPC UA client 13 .

Such an OPC UA-CPPS node generating module 12 may include an OPC UA model parser unit 120 , an OPC UA generating unit 122 and a CPPS generating unit 124 .

The OPC UA model parser means 120 may analyze the OPC UA model as necessary information. That is, if a reserved attribute is found using a specific attribute of the OPC UA node, it can be decomposed accordingly. In this case, the OPC UA model may be received through the external OPC UA model means 1200 .

The OPC UA generating means 122 may automatically generate a code for automatically generating the decomposed OPC UA node through the OPC UA model parser means 120 .

Through the automatically generated information through the OPC UA generating means 122, the central OPC UA client 13 is automatically added to enable communication with a plurality of field devices B1, ..., Bn of the physical area B, and Additions or changes to the central OPC UA address space 10 can be added without interruption to enable data exchange with the physical OPC UA server 4 in the physical area B.

The CPPS node generating means 124 may automatically add a node to the CPPS node control module 20 according to the hierarchical structure of the OPC UA model, and automatically map the node to the same node in the central OPC UA address space 10 .

The OPC UA-CPPS node generation module 12 of this configuration parses the OPC UA model, and the CPPS node control module 20, CPPS logic control module 22 and product process control module 24 of the factory CPPS model 2 ) can automatically generate the necessary properties and codes.

Specifically, the OPC UA-CPPS node generation module 12 parses the OPC UA model corresponding to the plurality of field devices B1, ..., Bn of the physical area B to be added or changed, and the parsing result is data can be added or changed in the central OPC UA address space 10 of the central OPC UA server 1 and in the individual OPC UA address space 130 of the central OPC UA client 13 .

Then, the OPC UA-CPPS node generation module 12 parses the OPC UA model corresponding to the plurality of field devices B1, ..., Bn of the physical area B to be added or changed, and uses the parsing result. to automatically add or change a node corresponding to the OPC UA model to the CPPS factory topology of the CPPS node control module 20 according to the hierarchical structure of the OPC UA model, and add the node of the CPPS factory topology to the central OPC UA address space (10). ) can be automatically mapped to physically identical nodes.

The central OPC UA client 13 may communicate with a plurality of field devices B1, ..., Bn through an OPC UA session.

Specifically, it includes an individual OPC UA address space 130 for the virtualized OPC UA model of a plurality of field devices B1, ..., Bn of the physical area B, and the individual OPC UA address space 130 and the central Physically identical nodes in the OPC UA address space 10 may be mapped to each other, and data transmitted from the distributed OPC UA server 1 may be delivered to the central OPC UA address space 10 in real time.

The information exchange service module 14 may exchange data with the external system 3 and transmit data to the external system 3 . That is, the information exchange service module 14 may be responsible for exchanging data between the CPPS-connected OPC UA module 11 and the external system 3 for interworking with the CPPS around the central OPC UA address space 10 . At this time, the information exchange service module 14 is composed of the existing OPC UA standard specifications.

Such an information exchange service module 14 may include an OPC UA Pub/Sub means 140 , an OPC UA Monitored Item means 142 , and an OPC UA Alarm/Event means 144 .

OPC UA Pub/Sub means 140 may distribute data to an external broker and cloud in an asynchronous message manner.

The OPC UA Monitored Item means 142 may register a node value to be periodically received from the external system 3 and the application with which data is to be exchanged with the outside, and data may be periodically transmitted accordingly. For example, when registering data to be transmitted to the OPC UA Monitored Item means 142, if properties such as a transmission period and data transmission filtering are registered together with the index value of the node to be obtained, the OPC UA Monitored Item means The 142 may transmit corresponding data for each session accordingly.

OPC UA Alarm/Event means 144 may distribute event data by simultaneously generating Alarm/Event inside and outside whenever a corresponding event occurs in accordance with the properties of Alarm/Event defined through OPC UA modeling.

The OPC UA storage module 15 may record and store all updated information in the central OPC UA address space 10 . You can select and use relational database, NoSQL database, XML, binary file, etc. for the recording method.

Factory CPPS model (2) may be linked with the central OPC UA server (1).

Factory CPPS model (2) is a CPPS node control module 20 that configures and manages a CPPS factory topology virtualized by a plurality of field devices (B1, ..., Bn) in a physical area (B) in a hierarchical structure, and OPC It will include a CPPS logic control module 22 that calls a function defined in UA modeling, or manages additionally necessary functions in a CPPS node, and a product process control module 24 that manages the processing logic related to the factory's unique product process. can

The external system 3 may include an external device, for example, a user terminal existing outside of a smart factory, or a cloud, a system application, a server, and the like.

The physical OPC UA server 4 may collect data from a plurality of field devices B1, ..., Bn distributed in the physical area B, and exchange data received from the central OPC UA server 1 . The physical OPC UA server 4 may be OPC UA communication communicating with a plurality of field devices B1, ..., Bn and intelligent devices controlling them.

Hereinafter, the central OPC UA server (1), the factory CPPS model (2), the external system (3) and the physical How the OPC UA server 4 interoperates will be described in detail.

First, the central OPC UA server 1 is a server that centralizes all communication data for the CPPS of the entire factory, and centralizes the address space (not shown) of the physical OPC UA servers 4 distributed in the physical area B. In accordance with the overall hierarchy, the overall central OPC UA address space 10 is built, and the data sent by each distributed physical OPC UA server 4 is reflected in the central OPC UA address space 10 in real time. can have

That is, the CPPS automatic construction system 1000 through central OPC UA modeling is a system that transmits the same data to all necessary systems and objects vertically and horizontally through the central OPC UA server 1, and can be sent in a distributed environment. It may be a structure that overcomes the limitations of the object.

To this end, the central OPC-UA server 1 and the central OPC UA client 13 are simultaneously located in the virtual area A, and the data of the individual OPC UA address space 130 of the central OPC UA client 13 and the central OPC -Data in the central OPC UA address space 10 of the UA server 1 can be mapped to each other.

Specifically, as shown in Fig. 3(a), the central OPC UA client 13 collects and exchanges data in real time through the physical OPC UA server 4 distributed in the physical area B, and the central OPC UA For simultaneous mapping into the address space 10, the individual OPC UA address space 130 of the central OPC UA client 13 and the central OPC UA address space 10 of the central OPC-UA server 1 are physically identical addresses By mapping the space, data from the physical OPC UA server 4 can be accurately transferred to the central OPC UA address space 10 .

And, using the information exchange service module 14, the data in the central OPC UA address space 10 can be periodically transmitted to the distributed OPC UA client corresponding to the external system 3 in an asynchronous message manner or through an OPC UA session. there is. That is, as shown in Fig. 3(b), the distributed OPC UA server and the central OPC UA client corresponding to the physical OPC UA server 4 communicate with each other to receive data from the distributed OPC UA server, and the central OPC UA client and the central OPC UA server corresponding to the central OPC UA server 1 communicate with each other, and the central OPC UA server and the distributed OPC UA client corresponding to the external system 3 can communicate with each other.

Accordingly, the integrated central OPC UA client 13 is disposed for communication with the central OPC UA server 1, and a smart factory can be built with only OPC UA communication over the entire section.

More specifically, a method of mapping physically identical nodes in the individual OPC UA address space 130 and the central OPC UA address space 10 to each other will be described with reference to FIG. 4 as follows.

First, if the added or changed physical topology is made into an OPC UA model by the external OPC UA model means 1200 , it can be decomposed into necessary information through the OPC UA model parser means 120 . At this time, if a reserved attribute is found by using a specific attribute of the OPC UA node for decomposition, a code for disassembling and automatically generating according to this may be automatically generated through the OPC UA generating means 122 . Communication with a plurality of field devices B1, ..., Bn of the physical OPC UA server 4 by automatically adding it to the central OPC UA client 13 through the information automatically generated through the OPC UA generating means 122 and without interruption of stock prices or changes to the central OPC UA address space 10 to enable data exchange with a plurality of field devices B1, ..., Bn of the physical OPC UA server 4 .

In addition, the CPPS generating means 124 may decompose the OPC UA model created by the external OPC UA model means 1200 into necessary information through the OPC UA model parser means 120 . At this time, if a reserved attribute is found by using a specific attribute of the OPC UA node for decomposition, a code for disassembling and automatically generating according to this may be automatically generated through the OPC UA generating means 122 . The CPPS generating means 124 may automatically add a node to the CPPS node control module 20 according to the hierarchical structure of the OPC UA model and automatically map it to the same node in the central OPC UA address space 10 . Accordingly, it is possible to automatically generate a CPPS logic function corresponding to the OPC UA model in the CPPS logic control module 22 based on the function call defined in the OPC UA method node of the OPC UA model. That is, in the factory CPPS model 2, the CPPS logic function of the CPPS logic control module 22 is called and data is transferred to the central OPC UA server 1, and a plurality of field devices B1 of the physical OPC UA server 4 ..., Bn) can be controlled.

And, when the OPC UA model is generated by the external OPC UA model means 1200, the OPC UA model parser means 120 selects the hierarchical structure, the type of Node, and the node to be automatically generated according to the properties of the OPC UA node. can be classified. Data can then be added or changed to the central OPC UA address space 10 via the CPPS generation means 124 . At this time, the individual OPC UA address space 130 of the central OPC UA client 13 may be mapped with the central OPC UA address space 10 .

Next, the CPPS generating means 124 may register and map the CPPS logic function to the CPPS logic control module 22 through the OPC UA method node.

Next, various and unique logic processing is possible by the product process control module 24 and can be automatically arranged by the OPC UA Attribute node.

As mentioned above, all factory topologies can be structured and informational through OPC UA modeling, and OPC UA nodes and CPPS nodes can be added dynamically and automatically without interruption.

5 is a diagram schematically illustrating the configuration of a CPPS automatic construction system through central OPC UA modeling according to another embodiment of the present invention, and is a diagram illustrating a data communication relationship between a central OPC UA server and other external systems.

Referring to FIG. 5 , the CPPS automatic establishment system 2000 through central OPC UA modeling according to another embodiment of the present invention may include another external system 5 .

Except for the other external system 5 shown in FIG. 5, it may have the same characteristics as the CPPS automatic construction system 1000 through the central OPC UA modeling shown in FIG.

In the following FIG. 5, detailed description of the content overlapping with the content described in FIG. 1 may be omitted, and other points may be described as forgery. Accordingly, components performing the same function as the CPPS automatic construction system 1000 through the central OPC UA modeling shown in FIG. 1 are given the same reference numerals as in FIG. 1 and detailed description thereof will be omitted.

Other external systems 5 may include external OPC UAs 50 and communicator systems 52 that communicate data to the CPPS factory topology.

The CPPS node control module 20 of the factory CPPS model 2 can automatically add or change a predetermined node to the CPPS factory topology using the data received from the external OPC UA 50 or the communicator system 52. .

The steps of a method or algorithm described in relation to an embodiment of the present invention may be implemented directly in hardware, as a software module executed by hardware, or by a combination thereof. A software module may contain random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any type of computer-readable recording medium well known in the art to which the present invention pertains.

As mentioned above, although embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1000, 2000: CPPS automatic construction system through central OPC UA modeling
1: Central OPC UA Server
2: Factory CPPS Model
3: External system
4: Physical OPC UA Server

Claims (10)

Factory CPPS model; and
Including a central OPC UA server that works with the factory CPPS model,
The factory CPPS model is:
A CPPS node control module that configures and manages a CPPS factory topology virtualized in a hierarchical structure of multiple field devices in the physical area;
A CPPS logic control module that calls a function defined in OPC UA modeling or manages additionally required functions in a CPPS node, and
a product process control module for managing processing logic related to the factory's unique product process;
The central OPC UA server is:
A central OPC UA address space in which the plurality of field devices and the OPC UA model virtualized with the CPPS factory topology are integrated according to the overall hierarchical structure;
CPPS connection OPC UA module for interworking with the factory CPPS model,
an information exchange service module that exchanges data with an external system and transmits data to the external system;
An OPC UA-CPPS node creation module that dynamically and automatically creates a system connection for interworking the factory CPPS model and a central OPC UA client, and
a central OPC UA client communicating with the plurality of field devices through an OPC UA session;
The OPC UA-CPPS node creation module,
Receive and parse the OPC UA model through an external OPC UA model means to automatically generate the attributes and codes required for the CPPS node control module, CPPS logic control module, and product process control module of the factory CPPS model,
Parsing the OPC UA model corresponding to the plurality of field devices to be added or changed, and using the parsing result, data into the central OPC UA address space of the central OPC UA server and the individual OPC UA address space of the central OPC UA client add or change
Using the parsing result, automatically add or change a node corresponding to the OPC UA model to the CPPS factory topology of the CPPS node control module according to the hierarchical structure of the OPC UA model, and select the node of the CPPS factory topology automatically maps to physically identical nodes in the central OPC UA address space;
For the OPC UA model, a reserved attribute is detected based on a specific attribute of the OPC UA node, the OPC UA model is parsed according to the detected reserved attribute, and the OPC UA node is configured using the parsed result. automatically created,
For the OPC UA model, based on the properties of the OPC UA node, classify the hierarchical structure, the type of node, and the node to be automatically generated, and automatically assign the node to the CPPS node control module based on the hierarchical structure of the OPC UA model. Add and automatically map to the same node in the central OPC UA address space, and automatically assign a CPPS logic function corresponding to the OPC UA model to the CPPS logic control module based on a plane call defined in a method node of the OPC UA model. CPPS automatic construction system through central OPC UA modeling. According to claim 1,
The central OPC UA client,
and an individual OPC UA address space for the virtualized OPC UA model of the plurality of field devices,
Through central OPC UA modeling, which maps physically identical nodes in the individual OPC UA address space and the central OPC UA address space to each other, and transfers data transmitted from a distributed OPC UA server to the central OPC UA address space in real time. CPPS automatic build system. 3. The method of claim 2,
The information exchange service module,
CPPS automatic establishment system through central OPC UA modeling, which periodically transmits data in the central OPC UA address space to distributed OPC UA clients corresponding to the external system in an asynchronous message manner or through an OPC UA session. delete delete delete delete According to claim 1,
The CPPS connection OPC UA module is,
A CPPS automatic construction system through central OPC UA modeling, which transmits changes in data generated in the central OPC UA address space, or alarm and event data generated by the information exchange service module, to the factory CPPS model. 9. The method of claim 8,
The CPPS node control module reflects changes in data received from the CPPS-connected OPC UA module to the CPPS factory topology, or displays notification and event data, CPPS automatic construction system through central OPC UA modeling. According to claim 1,
The CPPS node control module,
A CPPS automatic construction system through central OPC UA modeling that automatically adds or changes a predetermined node to the CPPS factory topology using data received from an external OPC UA or communicator system.

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