Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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Service Modelling Language Applied for Hyper Connected Ecosystem

2021 , Jäkel, Frank-Walter , Zelm, Martin , Chen, David

The paper elaborates the application of service modelling language for hyper-connected ecosystems. A specific target is to demonstrate the use of ISO 19440 standard together with a set of specialized service modelling constructs developed in the scope of CEN TC310/WG1. It presents a conceptual use case to model a 'Matching Service' and the service system required to provide the Matching Service in a service ecosystem. The purpose of this study is to test and demonstrate the use of a service modelling language related to ISO19440:2020 to describe in a formal and systematic way a service and its needed service system at business level for communication and validation. The paper first presents the motivation of the study and recalls related works. The service modelling language and the background of this work are discussed. The Matching service use case will be presented in detail and the concluding summary as well as some outlooks are given at the end of the paper.

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OPC-UA based IIoT and CPS interoperability validation

2020 , Jäkel, Frank-Walter

The rise of Cyber Physical Systems (CPS), Industry 4.0 and Industrial Internet of Things (IIoT) leads to the connection of production facilities via intranet as well as to the Internet. Machines are now IoT objects. This enables new processes in terms of digitalization, but also challenges in terms of security, performance, robustness and interoperability. The related changes in technologies and communication opportunities is also effecting the enterprise organization. The paper describes test cases, application scenarios and tools for ensuring compliance between enterprise IT infrastructure and industrial internet of things components using OPC-UA.

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Anforderungsaufnahme an IoT Tests für CoAP, MQTT und OPC-UA

2019 , Jäkel, Frank-Walter , Wolff, Tobias , Alexander Kaiser , Hackel, Sascha , Rennoch, Axel , Wardaschka, Andre

Der Report fasst die Anforderungen zu IoT-Tests zusammen, welche im Laufe des Projektes zusätzlich zu den Anforderungen zu Projektbeginn (Report 1.1 und 1.2) gesammelt wurden. Die Anforderungen basieren auf Erfahrungen der letzten 2,5 Jahre, welche teilweise in der Form von Szenarien in dem internen Report ""R3.1: Spezifikation der IoT-Testszenarien im Projekt"" dokumentiert wurden. Ein Teil der Anforderungen wurde für die Weiterentwicklungen in IoT-T berücksichtigt. Dabei wurden insbesondere Anforderungen aus der Industrie zu OPC-UA und Performanz von IoT Protokollen detailliert. Dazu gehören:BLSicherheit und Performanz von MQTT und CoAP,BLInteroperabilität im Zusammenhang mit OPC-UA BLVerwendung unterschiedlicher OPC-UA SDKs, BLModellierung und Nutzung von Anwendungsszenarien zum automatisierten Test bezüglich Interoperabilität von OPC-UA Anwendungen. Andere Anforderungen wurden ebenfalls von Anwendern und der Industrie als relevant eingestuft können aber in der verbleibenden Projektbearbeitungszeit nicht berücksichtigt werden. Hierzu gehören die Verwaltung von Geräten und Interaktion zur Laufzeit. Diese werden soweit sie von den Anwendern detailliert wurden im Bericht als Bedarfe für zukünftige Erweiterungen festgehalten.

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Execution and evaluation of enterprise models in IEM/MO2GO based on Petri net

2018 , Jin, Guangying , Jäkel, Frank-Walter

Because the growth of internet of things (IOT) technology, stakeholders who come from different research areas (information modeling area, dynamic process modeling area, and so on) will very easily and simultaneously evaluate and control the manufacturing process from all over the world. Therefore, there is an urgent need for a comprehensive enterprise modeling methodology with the integration of information modeling and dynamic process modeling method. However, it is known that there is limited research on the realization of a modeling methodology that can simultaneously handle information modeling and dynamic process modeling. The method for object-oriented business process optimization (MO2GO) system performs modeling in terms of information and process. However, the process modeling part in this system is static. Meanwhile, the Petri net mathematical modeling language has strong dynamic simulation capability. Thus, our main contribution is to analyze the characteristics of Petri net, which would be helpful to the dynamic process modeling realization in the MO2GO system, and integrate Petri net engine into the MO2GO system to allow a static process model to become dynamic. In here, the system can not only display a simulated manufacturing process but also calculate actual information (time and cost) for a final manufactured product. Therefore, it is possible for the system to handle both information modeling and dynamic process modeling. Finally, the MO2GO system will be more competitive in the future industry.

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Hyperconnected Ecosystems für industrielle Netzwerke

2021 , Jäkel, Frank-Walter , Gering, Patrick , Knothe, Thomas

Das Hyperconnected Ecosystems für industrielle Netzwerke wird definiert als die Vernetzung aller relevanten Informationen und deren Erreichbarkeit jederzeit und von überall (hyperconnected). Barrieren zwischen Netzwerkpartnern bzgl. Datenbereitstellung und Zugriff werden reduziert und an aktuelle Anforderungen ausgerichtet. Die Evolution des Netzwerkes wird durch dessen dynamische Anpassbarkeit und flexible Einbindung von Diensten ermöglicht. Schlussendlich soll jede erforderliche Information an jedem Ort sofort in einer bearbeitbaren Form und möglichst ohne Aufwand verfügbar sein. Die Metapher des sozialen Netzwerks, in denen sich Partner finden und nach Bedarf Daten und Leistungen austauschen, dient als Basis für die Strukturen im Netzwerk. Dabei müssen industrielle Anforderungen nach Sicherheit, Souveränität und Transparenz integriert werden. Der Beitrag beschreibt die Vision eines Hyperconnected Ecosystem für industrielle Netzwerke und erste Ansätze zu dessen Umsetzung.

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Ensure OPC-UA interfaces for digital plug-and-produce

2020 , Jäkel, Frank-Walter , Wolff, Tobias , Happersberger, Vincent , Knothe, Thomas

Experiences in industry has illustrated that ""Open Platform Communications Unified Architecture"" (OPC-UA) as upcoming de-facto standard for Industry 4.0 requires interoperability tests to support a digital plug-and-produce. Existing tools to validate OPC-UA implementations need to be applicable for such validations. Within the German national ""Internet of Things Test"" (IoT-T) project, we developed concepts and software for the validation of interoperability between different cyber physical systems using OPC-UA. The paper focuses on this part of the work and provides insights in the results. The results consists of industrial use cases, requirements, concepts and open source software. It also includes the comparison of the developments in the IoT-T project with the Compliance Test Tools (CTT) provided by the OPC Foundation (OPCF), which checks the conformity of the OPC-UA servers and clients against the OPC-UA specification.

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Enterprise interoperability management and artifacts

2018 , Jäkel, Frank-Walter

In the last years, interoperability became an important topic within organizations. Also in fields previously disconnected form the term ""interoperability"" like manufacturing and shopfloor management it appears mandatory especially to archive the digital transformation. Smart factory and self-controlled manufacturing requires networking of everything involved in the production including cyber physical systems, application services, manufacturing services and finally IoT components. This leads to the importance to know interoperability constrains like requested security levels. Different levels of security could easily lead to non-interoperability. Enterprise modelling techniques are use since decades to document and implement workflows for management systems such as ISO9001. Artifacts exists in the interoperability domain to use similar technologies to create an information basis for the management in an organization. The paper will focus some of these artifacts. It targets to collect management and business aspects of interoperability.

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Integrated enterprise modelling to achieve interoperability

2020 , Jäkel, Frank-Walter

The paper targets the use of an integrated enterprise modelling approach to analyse and overcome the gab of understanding of interoperability challenges across and between enterprises. It discusses the use of enterprise modelling to support the decision about new technologies identifying benefits in relation to the investment. This includes the potentials of the enterprise models to derive directly enterprise application services such as integrated management support or shop floor IT execution management. The goal is a review of these approaches in the discussion within the workshop âA Future Vision of Flexible Configurable Manufacturing in a Digitised Worldâ.

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Für Betreiber von Smarten Fabriken ist Interoperabilität entscheidend

2019 , Jäkel, Frank-Walter

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Test services for interoperable and secure shop-floor IT application interfaces in OPC-UA

2018 , Jäkel, Frank-Walter , Wolff, Tobias , Hackel, Leonard

The need of interoperable and secure IT interfaces of manufacturing equipment and related test services in the context of plug-and-produce is essential in the scope of digital transformation. The paper will focus on a test service validating the compliance of new machinery regarding the manufacturing IT infrastructure and applications such as production data acquisition (PDA). It will be demonstrated in terms of a prerequisite for interoperability and using OPC-UA.

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