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|| Barton, D.; Gönnheimer, P.; Qu, C. & Fleischer, J. (2018), Self-describing connected components for live information access within production systems. 4th International Conference on System-Integrated Intelligence: Intelligent, Flexible and Connected Systems in Products and Production, Hrsg. Denkena, B.; Thoben, K. & Trächtler, A., S. 250-257.
Access to data from components in production systems is potentially an enabler for various data-based approaches. This paper
presents a practical approach to transform mechanical components into self-describing cyber-physical systems connected within a
local network. The requirements for typical use cases are analysed and a modular cyber-physical connector is proposed. The data
is collected by a central OPC UA client and fed into a web-based visualisation, so that it is easily accessible for operators,
maintenance staff, and other stakeholders. The approach is illustrated for components with two different levels of complexity.
| [ 2 ]
|| Gönnheimer, P.; Kimmig, A.; Mandel, C.; Stürmlinger, T.; Yang, S.; Schade, F.; Ehrmann, C.; Klee, B.; Behrendt, M.; Schlechtendahl, J.; Fischer, M.; Trautmann, K.; Fleischer, J.; Lanza, G.; Ovtcharova, J.; Becker, J. & Albers, A. (2019), Methodical approach for the development of a platform for the configuration and operation of turnkey production systems. Procedia CIRP, Hrsg. Putnik, G., S. 880-885.
Shorter product lifecycles lead not only to faster time-to-market for products but also to the need for just as fast available associated production systems. These shorter product lifecycles, as well as the increasing individualization of products, also result in further decreasing production lot sizes. Young companies in China in particular are characterized by a very high speed of innovation but may not have the necessary manufacturing knowledge or capacities to bring their developed products to the market with a scalable production. For this reason, there is a great need to quickly set up and commission turnkey production systems or to reconfigure existing production systems for new production tasks in the shortest possible time. This paper describes the design and architecture of a cloud platform with the aim to support a manufacturer independent design process for turnkey production systems. This process ranges from the product to be manufactured to the operation of the production system. Firstly, the structure and methodology used to link the various objectives are discussed. The system for recording and structuring product and production system data to create reusable modules from components and machines is described. Subsequently, the use of standardized modules is developed to support reconfiguration of the production system during operation. In addition, the digital business models tailored to the production system are proposed to the platform user for commissioning and operation of the plant. A case study is conducted to validate the proposed methodology.
| [ 3 ]
|| Barton, D.; Gönnheimer, P.; Schade, F.; Ehrmann, C.; Becker, J. & Fleischer, J. (2019), Modular smart controller for Industry 4.0 functions in machine tools. Procedia CIRP, Hrsg. Butala, P.; Govekar, E. & Vrabič, R., S. 1331-1336.
In machine tools, Industry 4.0 functions can increase availability through predictive maintenance, while other functions improve productivity and workpiece quality through process supervision and optimisation. Many of these functions rely on data communication between systems from different suppliers. Requirements regarding latency and computing vary widely depending on the application. Based on an analysis of these requirements, a smart controller for the implementation of Industry 4.0 is designed, using a hypervisor to allow for the integration of soft real-time and best-effort applications.
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|| Gönnheimer, P.; Hillenbrand, J.; Betz-Mors, T.; Bischof, P.; Mohr, L. & Fleischer, J. (2019), Auto-configuration of a digital twin for machine tools by intelligent crawling. Production at the leading edge of technology, Hrsg. Wulfsberg, J. P.; Hintze, W. & Behrens, B., S. 543-552.
The digitalisation of production technology is becoming increasingly important today and will play a key role in machine tools in the future. In order to generate as much information as possible about machines and components as well as the product, the number of sensor systems and further devices is con-stantly increasing. A challenge with this increasing number of data sources is the also increasing complexity of the system with regard to the generation of the ma-chine tool’s digital twin that is to be fed from these data sources. For this, a ho-listic approach is necessary which combines all parameters and values with a uniform semantics and links them to the corresponding data sources. For this purpose, this paper uses a uniform information model to describe a machine tool, which is linked to the respective node variable names in the respective OPC namespace of the machine tool. In the event that this linkage plan is incomplete or completely missing, this paper presents a concept for a so-called crawler tool, an OPC client application. The crawler searches the parameters and values in the described OPC namespace of the machine tool, identifies them by domain knowledge-driven plausibility checks and assigns them to the corresponding pa-rameters of the information model of the machine tool.