Design and Implementation of CPPS and Edge Computing Architecture based on OPC UA Server

Abstract

CPPS (Cyber Physical Production System) must be accompanied to build a smart factory. Through the CPPS, it is the reality of a smart factory to move physical factories to a digital based Cyber world and to monitor and control them intelligently and autonomously. However, the existing CPPS architectures present only an abstract modeling architecture, and the application of the OPC UA (Open Platform Communication Unified Architecture) Framework, which is the international standard for data exchange in smart factories, as the basic system of CPPS. In addition, the construction of CPPS using the cloud is still in its infancy, and a cloud platform accompanied by Edge Computing is needed considering the real-time, unstructured and distributed control of factories. In this paper, we propose an architecture that implements CPPS in the cloud with a cloud CPPS architecture applicable to real factories for smart factories, distributed control using Edge Computing with Container Docker, and an architecture that provides fault tolerance through load balancing and clustering using Edge Orchestration. Some implementations have been tested for availability.