@article{VogtSchmidtMayeretal.2021, author = {Vogt, Anna and Schmidt, Philipp Heiner and Mayer, Sebastian and Stark, Rainer}, title = {Production in the loop: the interoperability of digital twins of the product and the production system}, volume = {2021}, journal = {Procedia CIRP}, number = {99}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {https://doi.org/10.1016/j.procir.2021.03.077}, pages = {561 -- 566}, year = {2021}, abstract = {The Internet of Things (IoT) era facilitates new possibilities at the interface between the lifecycle of the product and the manufacturing disciplines allowing to add value and meet growing legal requirements. This work presents use cases from the automobile industry which are analyzed in order to derive requirements for data exchange. The analysis of the use cases shows clearly that we need to focus on the instance level for this purpose. This means that both, a specific unit of the product and the production system, must be considered. As a solution approach, a communication loop is proposed bringing the Digital Twin concept in a new field of usage. The key aspect of the proposed solution is the direct intercommunication between the Digital Twins of the product being produced as a Cyber-Physical System (CPS) and the production resources as Cyber-Physical Production Systems (CPPS). This solution enables the aggregation of production-related data within the products Digital Twin and therefore promotes maximal transparency throughout engineering disciplines, phases of the product lifecycle and the whole supply chain.}, language = {en} } @article{VogtMuellerKampaetal.2021, author = {Vogt, Anna and M{\"u}ller, Ralph Klaus and Kampa, Thomas and Stark, Rainer and Großmann, Daniel}, title = {Concept and architecture for information exchange between digital twins of the product (CPS) and the production system (CPPS)}, journal = {Procedia CIRP}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {https://doi.org/10.1016/j.procir.2021.11.217}, pages = {1292 -- 1297}, year = {2021}, abstract = {The Digital Twin concept and CPS- and IIoT-based approaches are increasingly important topics concerning future Industry 4.0 architectures. They offer high potential for dynamical aspects in intelligent production planning and control as well as part traceability and documentation. Standardized information exchange is an upcoming requirement among the whole supply chain. This paper presents a concept for a Digital Twin architecture based on motor production in the automotive industry. The key aspect is an information exchange structure for Digital Twins of products and production systems that are combined using principles of Dynamic Aggregation.}, language = {en} }