Time-sensitive heterogeneous network system of industrial control system, and management method thereof

Abstract

The invention discloses a time-sensitive heterogeneous network system of an industrial control system, and a management method thereof, and relates to the technical field of network communication. Anindustrial network architecture is established and comprises a bottom layer device layer, a middle layer TSN (time-sensitive network) switch network and a topmost layer control layer. Heterogeneous data are converted into TSN streams, the data are upwards transmitted to a central controller through the TSN switch network, and after the central controller stores, analyzes and calculates the data, agenerated control instruction is downwards transmitted to field equipment through the TSN switch network to regulate the equipment. A control transmission cooperation strategy is introduced, and dynamic parameter updating is carried out according to detection and reconfiguration of CUC (centralized user configuration) and CNC (centralized network configuration) units. According to the invention,the problem that heterogeneous data under different protocols in a traditional network architecture are difficult to be compatible is solved, the determinacy and reliability of industrial data transmission and forwarding are ensured, and the performance optimization of a control system and the resource utilization rate maximization of a network transmission system are realized.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a time-sensitive heterogeneous network system and management method of an industrial control system. Background technique [0002] As a core to realize the interconnection and intelligence of industrial systems, the industrial network system optimizes production, simplifies processes, and increases benefits through the network collaboration of information systems and industrial physical processes. The development of globalization and intelligence is very important. The traditional industrial IoT network architecture is divided into three layers: perception layer, network layer, and application layer. The perception layer includes various sensors, actuators and other field devices, and a large amount of data generated by it is connected to the gateway through ProfiNet or other communication methods, and then enters the network layer; the network layer consists of NB...

AI Technical Summary

Problems solved by technology

It can be seen that most of the industrial control network architectures involved in existing patents are based on traditional network forms such as bus networks or local area networks, which cannot cope with heterogeneous data from various terminal devices, let alone guarantee the real-time and deterministic nature of data information. transmission

[0005] The existing industrial network architecture is not uniform, and heterogeneous data compatibility cannot be achieved, resulting in information islands in the industrial network; no fast and reliable protocol conversion mechanism is adopted, and the real-time and reliability of global data transmission cannot be guaranteed; the network transmission system and The design of the control system is separated, and the performance requirements of the control application are not considered for control and adjustment, which affects the performance of the control system and the resource utilization of the transmission system

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