Deterministic communication system based on TSN network and OPC UA architecture

Abstract

The invention discloses a deterministic communication system based on a TSN network and an OPC UA architecture. The system is characterized in that the system comprises an embedded OPC UA server, a TSN time sensitive network and an OPC UA client, wherein the embedded OPC UA server is used for being connected with equipment, machines and sensors on an industrial site; the TSN time sensitive networkis used as a communication carrier of the whole system; and the OPC UA client is used for reading field-level data, operating equipment and providing data and operation functions for upper-layer applications. According to the invention, the OPC UA embedded server and the TSN network are combined for realization. In this way, a powerful object-oriented information model of OPC UA is compatible todescribe a system with rich semantics, data intercommunication of a complex industrial site is achieved, reliable determinacy is provided in networking through a network of IEEE TSN, and end-to-end real-time data transmission is achieved.

Description

technical field [0001] The invention belongs to the field of industrial networks, and specifically relates to a method of using a time-sensitive network and an OPC UA framework to ensure deterministic communication of key loads in industrial communication and compatibility with ordinary non-deterministic communication, and to realize various devices and applications in industrial field networks data exchange. Background technique [0002] With the gradual development of intelligent manufacturing, technologies such as the Internet of Things, big data, and cloud computing are increasingly valued and used in the industry, and industrial data increasingly reflects the important industrial trend of "data is an asset". At the same time, the new paradigms of IIoT and Industry 4.0 push forward the classic automation pyramid of using uniform and vendor-neutral standards to simplify integration and maintenance. For this, a new communication method is needed that uses standardized mes...

AI Technical Summary

Problems solved by technology

These extended Ethernet technologies provide deterministic real-time properties based on traditional Ethernet, and can transmit real-time and non-real-time traffic on the same medium. However, since these extended technologies are provided by different suppliers and have their own proprietary mechanisms, They are not compatible with each other and cannot be integrated with standard Ethernet devices. It is difficult to meet the real-time deterministic requirements on industrial networks, which greatly restricts the further development of real-time Ethernet.

Moreover, these technologies belong to different organizations or companies, and there are differences in data analysis and network protocols between them. It is impossible to achieve unified and standard data interoperability and access across suppliers, applications, and automation hierarchies.

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