Interoperability-Based Integrated Simulation Method Utilizing Real-Time Data from Heterogeneous Manufacturing Equipment

In the manufacturing industry, digital twins play a role as a key technology for optimizing the manufacturing environment, such as real-time monitoring of production sites, process optimization, and prediction. Implementing a digital twin involves various challenges, including communication protocols of heterogeneous manufacturing equipment, use of commercial simulators, and reusability of digital twin models. To address these challenges, this study proposes an interoperability-based digital twin simulation framework that connects physical assets such as robots and machines to a simulation platform using standardized digital twin technologies. The proposed framework utilizes standards such as IEC 63278 – Asset Administration Shell and IEC 62541 – OPC UA, which have been suggested for digital twin implementation, to link data from heterogeneous equipment and simulators, enabling the realization of digital twins. Furthermore, the framework allows for bidirectional interaction and system behavior verification by running simulations based on actual equipment data and predefined process flows. Finally, this paper presents the results of performing simulations by linking the proposed framework with a commercial simulator using standard technologies.