CN116633723A - OPC UA data transmission method for 5G NR network - Google Patents

OPC UA data transmission method for 5G NR network Download PDF

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Publication number
CN116633723A
CN116633723A CN202310753837.2A CN202310753837A CN116633723A CN 116633723 A CN116633723 A CN 116633723A CN 202310753837 A CN202310753837 A CN 202310753837A CN 116633723 A CN116633723 A CN 116633723A
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Prior art keywords
opc
network
network system
system equipment
model
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Inventor
蒲宬亘
孙雄
王平
丁锡伍
杨澄鑫
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Institute Of Industrial Internet Chongqing University Of Posts And Telecommunications
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Institute Of Industrial Internet Chongqing University Of Posts And Telecommunications
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Priority to CN202310753837.2A priority Critical patent/CN116633723A/en
Publication of CN116633723A publication Critical patent/CN116633723A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/391—Modelling the propagation channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention belongs to the technical field of industrial communication, and particularly relates to an OPC UA data transmission method for a 5G NR network; the method comprises the following steps: constructing an OPC UA communication system model oriented to a 5G NR network; constructing an OPC UA information model of 5G NR network system equipment; rapidly configuring 5G NR network system equipment through an OPC UA information model and accessing the 5G terminal; an OPC UA server in the 5G terminal establishes connection with a 5G LAN according to transmission requirements, and configures a 5G LAN network; when a publisher publishes a topic message of OPC UA transmission parameters facing a 5G NR network, a subscriber receives the topic message; an operator reads or rewrites data in the OPC UA client through an industrial system of an application layer; the invention can realize the rapid access of the industrial field multi-source heterogeneous equipment to the 5G NR network and realize the high-efficiency interconnection and intercommunication.

Description

OPC UA data transmission method for 5G NR network
Technical Field
The invention belongs to the technical field of industrial communication, and particularly relates to an OPC UA data transmission method for a 5G NR network.
Background
Under the wave of new generation of technological revolution and industry upgrading, the world-wide leading countries use the industrial Internet as a strategic direction of the future industrial competitiveness of the country. The industrial Internet is based on the fact that a set of rapid, efficient and safe network system can be built. The industrial field devices are various, the informationized systems are independent, and the problem of island information of the industrial system is solved by rapidly integrating the data of the field devices, so that the problem of digital transformation of the traditional factory is solved. Meanwhile, the traditional network is difficult to meet the application scene of low delay and high bandwidth, and if the cost of all the 5G modules is too high. The digital transformation needs to realize the real-time data communication of a cloud platform, production equipment, a management system and a man-machine interaction system, and has extremely high requirements on quick deployment, data bandwidth, transmission delay and data integration. Obviously, conventional industrial communications have not been able to effectively support the need for future intelligent manufacturing.
The 5G NR network utilizes new technologies such as network slicing, edge computing and the like on the basis of wireless new air interface capability, has the characteristics of large bandwidth, low time delay, wide connection, customization and the like, and is matched with the requirements of the industrial Internet. Driven by advanced information communication technologies, manufacturing is undergoing a fourth industrial revolution, which requires more extensive information sharing in factories. OPC UA, as a common protocol standard in current industry 4.0 and intelligent manufacturing lines, has platform independence, extensibility, high reliability and the ability to connect to the internet. OPC UA is easy and flexible to use and can conveniently enable the transfer of raw data and pre-processing information from the manufacturing level to the production plan or ERP level. The OPC UA technology can realize standardized data and information interaction among equipment, machines and services in different industries through information modeling. However, in the prior art, the communication capability between the OPC UA client and the 5G NR network system equipment is not strong, and the system man-machine interaction needs to be further improved, and the intelligence needs to be further improved. The problems are the problems which need to be solved by the information modeling technology of the OPC UA equipment of the 5G NR network system in the current intelligent manufacturing.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides an OPC UA data transmission method oriented to a 5G NR network, which comprises the following steps:
s1: constructing an OPC UA communication system model oriented to a 5G NR network;
s2: performing OPC UA information modeling on 5G NR network system equipment according to an OPC UA communication system model facing the 5G NR network to obtain an OPC UA information model of the 5G NR network system equipment;
s3: rapidly configuring 5G NR network system equipment and accessing the 5G terminal according to an OPC UA information model of the 5G NR network system;
s4: an OPC UA server in the 5G terminal establishes connection with a 5G LAN according to transmission requirements, and configures a 5G LAN network, so that connection between a publisher and a subscriber through the 5G LAN network is realized;
s5: when a publisher publishes a topic message of OPC UA transmission parameters facing a 5G NR network, a subscriber receives the topic message so as to realize data transmission;
s6: the operator reads or rewrites the data in the OPC UA client by the industrial system of the application layer.
Preferably, the OPC UA communication system model facing the 5G NR network includes a device layer, a network layer and an application layer;
the equipment layer is equipment of an industrial field, equipment supporting a 5G NR network is directly connected to the 5G NR network, and equipment not supporting 5G communication is connected to an OPC UA server through an Ethernet field bus or a data gateway;
the network layer is a network facing industrial application;
the application layer refers to an industrial system facing industrial application, and an operator reads or modifies data in the OPC UA client through the industrial system of the application layer.
Further, the network layer comprises a 5G NR network, an OPC UA server and an OPC UA client; the 5G NR network is a network channel of the system; the OPC UA server is used for converging data of the data gateway and other Ethernet devices in the industrial field, and is used for reading and writing the data by the OPC UA client; the OPC UA client is used for receiving and displaying data for the application layer subsystem to read and write.
Preferably, the modeling process of the OPC UA information of the 5G NR network system device comprises the following steps:
s21: building an OPC UA information model architecture of 5G NR network system equipment: acquiring 5G NR network system equipment and component information thereof according to an OPC UA communication system model facing the 5G NR network, and constructing a 5GNR network system equipment information model;
s22: modeling information: according to the 5G NR network system equipment information model, an OPC UA node type model is built and instantiated, and the relation among a plurality of components of the 5G NR network system equipment is built, so that the service model of the 5G NR network system equipment is built;
s23: export a document: and (5) exporting an OPC UA information model of the 5G NR network system equipment by using a modeling tool.
Further, the building of the 5G NR network system device OPC UA information model architecture comprises the following steps:
demand analysis of 5G NR network system equipment: determining the functions of different 5G NR network devices and OPC UA client functions connected with the devices according to different device functions and application scene requirements of the 5G NR network system;
5G NR network system equipment information acquisition: acquiring 5G NR network equipment to be modeled and component information thereof;
5G NR network system equipment and client interaction analysis: when the data of 5G NR system equipment changes, receiving the data updated by the OPC UA client through OPC UA service;
building a 5G NR network system equipment information model: and constructing a 5G NR network system equipment information model according to the 5G NR network system equipment and the component information thereof.
Further, the information modeling includes the following steps:
defining OPC UA node types: according to the 5G NR network system equipment information model, mapping 5G NR network system equipment and component information thereof in the 5G NR network system equipment information model to standard nodes of an OPC UA meta-model;
and (3) establishing a type model: constructing an OPC UA node type model according to the OPC UA node type, 5G NR network system equipment and component information thereof in the 5G NR network system equipment information model;
OPC UA node type instantiation: instantiating the OPC UA node type to complete the construction of an OPC UA information model of a 5G NR network system equipment component;
instantiating an information model: and establishing a relation among a plurality of components of the 5G NR network system equipment to complete the construction of an equipment service model of the 5G NR network system OPC UA.
Preferably, the process of receiving the subject message by the subscriber includes:
in a 5G LAN network, subscribers subscribe to messages by specifying topics or channels of interest;
the publisher generates and sends messages to specific destination addresses and ports using the UDP/IP protocol;
subscribers receive published messages by listening for specific addresses and ports on the 5G LAN network.
The beneficial effects of the invention are as follows: the invention relates to a 5G NR network and an OPC UA protocol, which realizes the data transmission of the OPC UA under the 5G NR network by carrying out information modeling and communication mode selection oriented to the 5G NR network on a 5G NR network system, can enable industrial field multi-source heterogeneous equipment to quickly access the 5G NR network to realize high-efficiency interconnection and interworking, for example, can realize real-time acquisition and flexible networking scheme of multi-source heterogeneous data of workshop equipment, and meets the application requirements of a digital workshop.
Drawings
Fig. 1 is a flowchart of an OPC UA data transmission method for a 5G NR network in the present invention;
FIG. 2 is a schematic diagram of an OPC UA data transmission process under a 5G NR network in the present invention;
fig. 3 is a flowchart of setting up and configuring an OPC UA server in the 5G NR network according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an OPC UA data transmission method for a 5G NR network to solve the problems of complex bus type, various protocols, low networking efficiency, low data transmission instantaneity and the like of industrial field devices, and as shown in figure 1, the method comprises the following steps:
s1: and constructing an OPC UA communication system model oriented to the 5G NR network.
The invention designs an OPC UA transmission communication system oriented to a 5G NR network, which models OPC UA information of each device of the 5G NR network system, realizes quick deployment and connection, improves the communication capacity of an OPC UA server and an OPC UA client in the 5G NR network, and further realizes interconnection and intercommunication between industrial field device data and each information system in a 5G intelligent factory.
The OPC UA communication system model facing the 5G NR network comprises a device layer, a network layer and an application layer; the application layer refers to an industrial system facing industrial application; the network layer refers to a network facing industrial application and comprises a 5GNR network, an OPC UA server and an OPC UA client; the 5G NR network is used as a network channel of the system; the OPC UA server is used for converging data of the data gateway and other Ethernet devices in the industrial field, and is used for reading and writing the data by the OPC UA client; the OPC UA client is used for receiving and displaying data for the application layer subsystem to read and write. The equipment supporting the 5G NR network in the equipment layer is directly connected to the 5G NR network, and the industrial field equipment not supporting the 5G NR communication is connected to an OPC UA server through an Ethernet field bus or a data gateway, so that the OPC UA server can collect multi-source heterogeneous data and transmit the multi-source heterogeneous data to the 5G NR network; the data is transmitted to each OPC UA client through the 5G NR network, and an operator can read or modify the data in the OPC UA client through an industrial system of the application layer.
S2: and modeling the OPC UA information of the 5G NR network system equipment according to the OPC UA communication system model oriented to the 5G NR network to obtain the OPC UA information model of the 5G NR network system equipment.
The OPC UA information modeling process of the 5G NR network system device comprises the following steps:
s21: building an OPC UA information model architecture of 5G NR network system equipment: and acquiring 5G NR network system equipment and component information thereof according to the OPC UA communication system model facing the 5G NR network, and constructing a 5GNR network system equipment information model.
Demand analysis of 5G NR network system equipment: determining the functions of different 5G NR network devices and OPC UA client functions connected with the devices according to different device functions and application scene requirements of the 5G NR network system;
5G NR network system equipment information acquisition: acquiring 5G NR network equipment to be modeled and component information thereof;
5G NR network system equipment and client interaction analysis: when the data of the 5GNR system equipment changes, the data updated by the OPC UA client through OPC UA service is received.
Building a 5G NR network system equipment information model: and constructing a 5G NR network system equipment information model according to the 5G NR network system equipment and the component information thereof.
S22: modeling information: and constructing and instantiating an OPC UA node type model according to the 5G NR network system equipment information model, and establishing a relation among a plurality of components of the 5G NR network system equipment to finish the construction of a service model of the 5G NR network system equipment.
Defining OPC UA node types:
according to the 5G NR network system equipment information model, mapping 5G NR network system equipment and component information thereof in the 5G NR network system equipment information model to standard nodes of an OPC UA meta-model;
and (3) establishing a type model:
constructing an OPC UA node type model according to the OPC UA node type, 5G NR network system equipment and component information thereof in the 5G NR network system equipment information model; wherein, 5G NR network system device and its component information include: attribute information, component information, and methods; the attribute information comprises static attributes, process attributes and configuration attributes; the component information includes controller information, driver information, sensor information, and other component information; the method comprises the functions and events of the equipment.
OPC UA node type instantiation:
instantiating the OPC UA node type to complete the construction of an OPC UA information model of a 5G NR network system equipment component;
instantiating an information model:
and establishing a relation among a plurality of components of the 5G NR network system equipment to complete the construction of an equipment service model of the 5G NR network system OPC UA. Examples of the information model of the 5G terminal mainly include name, authentication state, network state, data, location information, and the like. Examples of the information model of the 5G base station mainly include name, authentication status, network status, connectivity, location information, and the like.
S23: export a document: and (5) exporting an OPC UA information model of the 5G NR network system equipment by using a modeling tool. The exported document is in XML format.
S3: and rapidly configuring 5G NR network system equipment and accessing the 5G terminal according to the OPC UA information model of the 5G NR network system.
The 5G NR network system equipment comprises a base station of a 5G NR network, a core network, a 5G terminal module and the like. The industrial field device is accessed to an OPC UA server through an Ethernet field bus or a data gateway, and the OPC UA server collects data and transmits the data to the 5G terminal.
S4: and the OPC UA server in the 5G terminal establishes connection with the 5G LAN according to the transmission requirement and configures the 5G LAN network, so that the connection between the publisher and the subscriber through the 5G LAN network is realized.
S5: when a publisher publishes a topic message of OPC UA transmission parameters facing a 5G NR network, a subscriber receives the topic message so as to realize data transmission.
The OPC UA subscriber establishes message connection with the OPC UA publisher according to the topic published by the subscription OPC UA publisher; specific:
the publisher and the subscriber are connected to the same 5G LAN network, and can directly communicate; in 5G LAN networks, subscribers subscribe to messages by specifying topics or channels of interest. The topic may be an identifier for classifying the message.
The publisher generates a message and sends the message to a particular destination address and port using the UDP/IP protocol.
Subscribers receive published messages by listening to specific addresses and ports on the 5G LAN network and once a message arrives, the subscribers can receive the corresponding message data.
S6: the operator reads or rewrites the data in the OPC UA client by the industrial system of the application layer.
As shown in fig. 2, in some preferred embodiments, the client/server communication mode and the publish/subscribe communication mode may be selected according to actual industrial scenario requirements.
For client/server communication mode:
after the modeling of the OPC UA information facing the 5G NR network is completed, in order to complete data transmission in the communication mode of an OPC UA client/server under the 5G NR network, firstly, the 5G NR network can realize normal communication, and the OPC UA uses the 5G NR network as a local area network to transmit and receive data.
OPC UA client/server communication mode OPC UA through 5G NR network user plane network layer interface uses standard 5G user plane interface and open capability for transmission through IP communication protocol of data link layer (L2). The OPC UA performs transmission using an IP communication protocol of a network layer (L3) or an Ethernet protocol of a data link layer in a publish/subscribe mode. Network elements support network protocols and network service development capabilities through network development capabilities in 5G NR networks, and various network functions such as packet processing, data traffic management, network security, network monitoring, etc. are deployed by means of related open tools and APIs. The OPC UA information model of the 5G NR network system realizes seamless connection through an API interface provided by a 5G NR network opening capacity network element.
For publish/subscribe communication mode:
the OPC UA publishing end and the subscribing end collect data of industrial field layer physical equipment through an OPC UA server, establish a corresponding information model of OPC UA publishing/subscribing under a 5G NR network, send network transmission requirements of publishing/subscribing communication to a user plane message proxy middleware (5G LAN is used as a non-proxy message middleware) through application layer QoS requirements, and after the message proxy middleware completes configuration and deployment of the 5G NR network, publishers and subscribers realize data exchange through the 5G NR network. As shown in fig. 3, the main steps of setting up and configuring an OPC UA server in an OPC UA publisher of a 5G terminal in a 5G NR network include:
step one: OPC UA servers of publishers and subscribers under the 5G NR network are created and initialized through UA_Server_getConfig () function. The method mainly comprises the steps of binding basic configuration such as IP address, port number, secure session and the like of an OPC UA server and initializing an OPC UA address space original model; after the configuration process is finished, the OPC UA Server can run and shut down the Server through the ua_server_run () and ua_server_delete () functions.
Step two: an OPC UA information model is created and instantiated. The process firstly creates an OPC UA publish/subscribe information model under a 5G NR network through OPC UA client software UaModeler, and derives an XML file generated by the OPC UA information model. The parsed XML file is then compiled to generate a parse function that can be used for invocation, and the OPC UA server loads the OPC UA information model into the address space of the server by invoking the parse function.
Step three: and sending the communication transmission requirement information of the publish/subscribe communication mode. The process sends application layer QoS demands including transmission bandwidth, delay and the like to user plane message proxy middleware in the 5G NR network by a publisher side and a subscriber side.
Step four: and (5) packaging data. The OPC UA publisher encapsulates the data into a message, which is received by the receiving end and then decapsulated back into the original data format.
Step five: it is checked whether the data is updated. The step can judge whether the publisher updates the data, if the data of the 5G industrial terminal equipment is updated, a write-in function is called to write the relevant updated value into an information model of the publisher end, the update is carried out in an address space, the subscriber end can subscribe to semantic information of the information model of the publisher end in real time, and meanwhile, whether the data of the 5G NR network equipment is updated is judged.
In some preferred embodiments, the process of establishing the OPC UA information model of the 5G NR network system device specifically includes:
1) And 5G NR network system demand analysis. And confirming the functions required by the equipment and the functions of the client connected with the equipment according to the requirements of the production system.
2) And acquiring 5G NR network system equipment information. And according to the proposed basic architecture diagram of the 5G NR network system equipment, constructing an equipment architecture diagram by combining the equipment requirements, functions, use conditions and the like of the 5G NR network system equipment, and acquiring equipment information required by modeling.
3) And 5G NR network system equipment and a client terminal are subjected to interaction analysis. And (3) confirming the parts such as dynamic change of data, data writing, method use and the like by defining the interaction condition of the equipment service and the client.
4) And constructing a 5G NR network system equipment information model architecture. And constructing a 5G NR network system equipment information model architecture according to the three parts of the attribute, the component and the method.
5) Types are defined. According to the 5G NR network system equipment information model architecture, the OPC UA node type is defined, and the OPC UA specification is consulted at the same time.
6) And establishing a type model. And perfecting the type according to the defined OPC UA node type, and constructing a complete type model. The type models of the basic attribute type node, the equipment type node and the equipment component type node need to be constructed.
7) Type instantiation. And according to the OPC UA type model, the type is instantiated, and the instantiation of the equipment and the equipment components is completed.
8) The information model is instantiated. And according to the type of instantiation, carrying out complete instantiation information model construction on the equipment.
9) The document is exported. Relevant documents are derived from the instantiated information model.
While the foregoing is directed to embodiments, aspects and advantages of the present invention, other and further details of the invention may be had by the foregoing description, it will be understood that the foregoing embodiments are merely exemplary of the invention, and that any changes, substitutions, alterations, etc. which may be made herein without departing from the spirit and principles of the invention.

Claims (7)

1. The OPC UA data transmission method for the 5G NR network is characterized by comprising the following steps of:
s1: constructing an OPC UA communication system model oriented to a 5G NR network;
s2: performing OPC UA information modeling on 5G NR network system equipment according to an OPC UA communication system model facing the 5G NR network to obtain an OPC UA information model of the 5G NR network system equipment;
s3: rapidly configuring 5G NR network system equipment and accessing the 5G terminal according to an OPC UA information model of the 5G NR network system;
s4: an OPC UA server in the 5G terminal establishes connection with a 5G LAN according to transmission requirements, and configures a 5G LAN network, so that connection between a publisher and a subscriber through the 5G LAN network is realized;
s5: when a publisher publishes a topic message of OPC UA transmission parameters facing a 5G NR network, a subscriber receives the topic message so as to realize data transmission;
s6: the operator reads or rewrites the data in the OPC UA client by the industrial system of the application layer.
2. The 5G NR network-oriented OPC UA data transmission method of claim 1 wherein the 5G NR network-oriented OPC UA communication system model comprises a device layer, a network layer, and an application layer;
the equipment layer is equipment of an industrial field, equipment supporting a 5G NR network is directly connected to the 5G NR network, and equipment not supporting 5G communication is connected to an OPC UA server through an Ethernet field bus or a data gateway;
the network layer is a network facing industrial application;
the application layer refers to an industrial system facing industrial application, and an operator reads or modifies data in the OPC UA client through the industrial system of the application layer.
3. The 5G NR network-oriented OPC UA data transmission method of claim 2 wherein the network layer comprises a 5G NR network, an OPC UA server and an OPC UA client; the 5G NR network is a network channel of the system; the OPC UA server is used for converging data of the data gateway and other Ethernet devices in the industrial field, and is used for reading and writing the data by the OPC UA client; the OPC UA client is used for receiving and displaying data for the application layer subsystem to read and write.
4. The OPC UA data transmission method for 5G NR network according to claim 1, wherein the modeling process of OPC UA information of the 5G NR network system device includes:
s21: building an OPC UA information model architecture of 5G NR network system equipment: acquiring 5G NR network system equipment and component information thereof according to an OPC UA communication system model facing the 5G NR network, and constructing a 5GNR network system equipment information model;
s22: modeling information: according to the 5G NR network system equipment information model, an OPC UA node type model is built and instantiated, and the relation among a plurality of components of the 5G NR network system equipment is built, so that the service model of the 5G NR network system equipment is built;
s23: export a document: and (5) exporting an OPC UA information model of the 5G NR network system equipment by using a modeling tool.
5. The OPC UA data transmission method for 5G NR network of claim 4 wherein the 5G NR network system device OPC UA information model architecture construction comprises the steps of:
demand analysis of 5G NR network system equipment: determining the functions of different 5G NR network devices and OPC UA client functions connected with the devices according to different device functions and application scene requirements of the 5G NR network system;
5G NR network system equipment information acquisition: acquiring 5G NR network equipment to be modeled and component information thereof;
5G NR network system equipment and client interaction analysis: when the data of 5G NR system equipment changes, receiving the data updated by the OPC UA client through OPC UA service;
building a 5G NR network system equipment information model: and constructing a 5G NR network system equipment information model according to the 5G NR network system equipment and the component information thereof.
6. The OPC UA data transmission method for 5G NR network of claim 4, wherein the information modeling comprises the steps of:
defining OPC UA node types: according to the 5G NR network system equipment information model, mapping 5G NR network system equipment and component information thereof in the 5G NR network system equipment information model to standard nodes of an OPC UA meta-model;
and (3) establishing a type model: constructing an OPC UA node type model according to the OPC UA node type, 5G NR network system equipment and component information thereof in the 5G NR network system equipment information model;
OPC UA node type instantiation: instantiating the OPC UA node type to complete the construction of an OPC UA information model of a 5G NR network system equipment component;
instantiating an information model: and establishing a relation among a plurality of components of the 5G NR network system equipment to complete the construction of an equipment service model of the 5G NR network system OPC UA.
7. The OPC UA data transmission method for 5G NR network of claim 1 wherein the process of receiving the subject message by the subscriber comprises:
in a 5G LAN network, subscribers subscribe to messages by specifying topics or channels of interest;
the publisher generates and sends messages to specific destination addresses and ports using the UDP/IP protocol; subscribers receive published messages by listening for specific addresses and ports on the 5G LAN network.
CN202310753837.2A 2023-06-25 2023-06-25 OPC UA data transmission method for 5G NR network Pending CN116633723A (en)

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Application Number Priority Date Filing Date Title
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