Patent ID: 11929873
Assignee: INSTITUTE OF INDUSTRIAL INTERNET, CHONQING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. An open platform communications unified architecture (OPC UA)-based centralized user configuration method for a time-sensitive network, comprising the following steps:
obtaining, by embedded OPC UA servers of field devices in a user terminal station, data information of the field devices in real time, and constructing an OPC UA information model of a TSN network,
actively registering, by the embedded OPC UA servers, with a unified architecture-time-sensitive network (UA-TSN) coordinator of the user terminal station, and storing address information of the servers in the UA-TSN coordinator,
communicating, by a UA-TSN configuration management middleware, with the UA-TSN coordinator to discover and obtain an address information list of all registered embedded OPC UA servers in the user terminal station,
connecting the UA-TSN configuration management middleware to the field devices in the user terminal station according to the address information list, reading data information in the embedded OPC UA servers, and uniformly collecting and managing all obtained data information, and
completing, by a centralized user configuration entity, the initialization, then issuing a connection establishment request to a UA-TSN message broker middleware, reading TSN stream demands and network topology information stored in a user data aggregation module, and processing the read information,
the process of the actively registering, by the embedded OPC UA servers, with a UA-TSN coordinator of the user terminal station comprising the following steps:
creating embedded OPC UA servers according to first registration information required by the embedded OPC UA servers, and initializing the configuration,
defining an analytic function and a reading and writing method of data source information, and constructing address spaces of the embedded OPC UA servers according to the reading and writing method of data source information,
calling the analytic function to process data, and adding the processed data information to nodes corresponding to the address spaces of the OPC UA servers,
starting the embedded OPC UA servers to collect data information of the field devices, and calling the analytic function to obtain dynamic data of the field devices,
creating a first registration client and initializing the configuration of the first registration client, and
starting the first registration client and querying a local discovery server-multicast extension (LDS-ME) discovery server in the UA-TSN coordinator, and completing, by the embedded OPC UA servers, registration in the LDS-ME discovery server after the first registration client queries the LDS-ME discovery server.