OPC UA PubSub Data Matching With Broker Metadata
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Solution Overview
Problem
Manual configuration in OPC UA PubSub automation networks is time-consuming, error-prone, and hinders scalability and adaptability, leading to security vulnerabilities and suboptimal performance due to human intervention.
Innovation Solution
An automated method for a gateway device to discover, identify, and retrieve data of interest in an OPC UA PubSub network by connecting, identifying brokers, determining matched information sources based on intent and meta information, and retrieving data using semantic queries and PubSub meta information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual configuration is used to set up gateway devices in OPC UA PubSub networks, then system security and data accuracy can be controlled, but the configuration process becomes time-consuming and error-prone
Solution Approach 1:
The gateway device automatically discovers information sources, brokers, and data of interest through self-service mechanisms. The system performs autonomous configuration by discovering available data sources, identifying matched information sources based on information intent, and establishing connections without requiring manual endpoint compilation or security configuration, thereby eliminating time-consuming manual setup while maintaining reliability through automated validation
Solution Approach 2:
The system performs preliminary discovery actions by scanning the network for available information sources and brokers before actual data retrieval begins. The gateway device proactively identifies matched information sources based on information intent and pre-configures security measures, so that when data retrieval is needed, the configuration is already in place, eliminating the need for time-consuming manual setup at the moment of need
2Reliability
If manual configuration is used to compile endpoint lists and configure cybersecurity measures, then security control is maintained, but the process becomes cumbersome and difficult to manage as networks grow
Solution Approach 1:
The gateway device automatically discovers available information sources and brokers on the network through self-service mechanisms. The system autonomously identifies matched information sources based on information intent and establishes secure connections without requiring manual endpoint compilation or security configuration, thereby maintaining security control while eliminating the complexity of managing growing networks
Solution Approach 2:
The system implements feedback mechanisms where the gateway device continuously monitors the network environment, discovers new information sources, and automatically updates its configuration. The automated matching process provides feedback on which information sources align with information intent, enabling dynamic adaptation to network growth while maintaining security through automated validation and connection management
3Measurement precision
If manual selection of data of interest is performed, then data accuracy can be ensured, but valuable information may be overlooked and system performance becomes suboptimal
Solution Approach 1:
The gateway device automatically determines matched information sources by comparing information intent with PubSub meta information from the broker. The system autonomously identifies and retrieves relevant data without requiring manual selection, thereby ensuring data accuracy through automated matching algorithms while maximizing productivity by retrieving all potentially relevant information simultaneously
Solution Approach 2:
The system uses feedback from PubSub meta information to automatically determine which information sources match the information intent. The automated matching process provides feedback on data relevance, ensuring accurate data selection while improving productivity by eliminating manual review processes and enabling parallel processing of multiple data sources
Data Source
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AI summary
The method for identification and retrieval of data of interest in an OPC UA PubSub automation network, wherein the OPC UA PubSub automation network comprises at least one publisher, providing publisher data, the method comprises connecting a gateway device to the OPC UA PubSub automation network, discovering at least one information source in the OPC UA automation network, identifying and connecting to a broker by the gateway device, wherein the broker manages the publisher data provided by the at least one publisher, determining, by the gateway device, at least one matched information source from the discovered at least one information source based on information intent and PubSub meta information provided by the broker, and retrieving, by the gateway device, the data of interest from the at least one matched information source.