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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Chris Paul Iatrou Heiner Bauer Markus Graube Sebastian Höppner Julian Rahm Leon Urbas Chair of Process Control & Systems Engineering Technische Universität Dresden Chair of Highly-Parallel VLSI Systems and Neuro-Microelectronics Technische Universität Dresden

The fast semantics project examines the use of the OPC Unified Architecture (OPC UA) in embedded industrial systems and proposes the design of a customizable, hard real time capable OPC UA Intellectual Property Core (IP Core) for single chip computing plattforms. This allows using OPC UA in both novel energy efficient sensor applications and in state of the art field devices. These single chip OPC UA servers form the semantic data sources for future applications such as cloud based added value services or machine learning applications. This article presents the design alternatives and first synthesis results for the implementation of OPC UA servers in embedded systems.

关键词： Random access memory IP networks Protocols Semantics Servers process control Real-time systems

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Der Weg zum Digital Twin im modularen Anlagenbau mittels MTP und DEXPI Standard

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Chemie Ingenieur Technik 2020年第9期92卷

作者： J. Rahm A. Klose L. Urbas M. Soemers M. Theißen C. Schäfer Technische Universität Dresden Chair of Process Control Systems and Process Systems Engineering Group Helmholtzstr. 18 01062 Dresden Deutschland AixCAPE e.V Peterstr. 2–4 52062 Aachen Deutschland Merck KGaA Site Management Engineering Services Frankfurter Str. 250 64293 Darmstadt Deutschland

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State-based control of process services within modular process plants

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Procedia CIRP 2018年 72卷 1088-1093页

作者： Henry Bloch Stephan Hensel Mario Hoernicke Katharina Stark Anna Menschner (neé Hahn) Alexander Fay Leon Urbas Torsten Knohl Jens Bernshausen Institute of Automation Technology Helmut-Schmidt-University Holstenhofweg 85 22043 Hamburg Germany Chair of Process Control Systems and Process Systems Engineering Group Technische Universität Dresden 01062 Dresden Germany ABB Corporate Research Opertions Management Wallstadter Straße 59 68526 Bayer AG 51386 Leverkusen Germany INVITE GmbH 51386 Leverkusen Germany

The modularization of process plants is an approach to cope with the changing requirements of the process industry, such as highly volatile markets and shorter product lifecycles. Each module offers services as encapsulated process functions to the superior control system for the orchestration. These services are controlled in a state-based way. The encapsulation of these services in a reasonable way is a difficult task, because aspects of process and automation engineering must be considered. This contribution introduces an approach for the encapsulation of process functions in services from an automation point of view. Furthermore, the operation modes of modules, services and field devices are discussed. Additionally, possible solutions for the orchestration based on recipe models are introduced. The developed concepts have been tested within a simulation environment.

关键词： Modular process automation Microservices Orchestration State-based control Operating modes Service-oriented architectures

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Challenges in Skill-based engineering of Industrial Automation systems

Challenges in Skill-based Engineering of Industrial Automati...

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IEEE International Conference on Emerging Technologies and Factory Automation

作者： Somayeh Malakuti Jurgen Bock Michael Weser Pierre Venet Patrick Zimmermann Mathias Wiegand Julian Grothoff Constantin Wagner Andreas Bayha ABB Corporate Research Center Ladenburg Germany R&D Corporate Research KUKA Deutschland GmbH Augsburg Germany Digital Engineering Fraunhofer IGCV Augsburg Germany Advanced Product Engineering Festo AG & Co. KG Esslingen Germany Chair of Process Control Engineering RWTH Aachen University Aachen Germany Model-based Systems Engineering Fortiss GmbH Munich Germany

Skill-based engineering is gaining attention as a means to increase flexibility and changeability in engineering industrial automation systems. This paper proposes the Skill-based engineering Model (SEM), which formally describes the core entities that play a role in skill-based engineering. Accordingly, we propose a four dimensional classification scheme for skills, and assess the suitability of a property model and OWL ontologies to describe and match skills. For each case, we identify a list of challenges that must be addressed to make skill-based engineering a reality in industrial automation systems. We believe that this paper can guide researchers to study various open aspects of skill-based engineering to make it feasible in complex industrial automation systems.

关键词： Skill Property Ontology PPR model Taxonomy

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OPC UA hardware offloading engine as dedicated peripheral IP core

OPC UA hardware offloading engine as dedicated peripheral IP...

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IEEE International Workshop on Factory Communication systems (WFCS)

作者： Chris Paul Iatrou Leon Urbas Technical University of Dresden Chair for Process Control Systems Engineering

OPCUA is a promising candidate for achieving a vertical semantic integration of field devices in the next generation of industrial automation topologies. Microprocessing platforms embedded in sensors and actor do however not provide the memory and computing resources required to integrate OPC UA communication stacks. To enable the usage of OPC UA on limited platforms, this article introduces a dedicated, highly scalable hardware server stack, synthesizable on 75.800 μm 2 using 28 nm CMOS technology as well as FPGAs, that can process OPC UA as a peripheral component.

关键词： Engines Hardware Memory management Servers Fabrics IP networks Protocols

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Co-simulation with OPC UA

Co-simulation with OPC UA

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IEEE International Conference on Industrial Informatics (INDIN)

作者： Stephan Hensel Markus Graube Leon Urbas Till Heinzerling Mathias Oppelt Chair for Process Control Systems Engineering Technische Universität Dresden Germany Siemens AG

ISBN: (纸本)9781509028719

engineering projects are driven by cost and time constraints. Furthermore, the increasing complexity of these projects makes it necessary to expose specification, implementation and conceptual errors as early as possible. Therefore, a well-established method is to carry out simulation experiments. This paper presents a concept for coupling already existing (domain-specific) simulation models that allow the integration of individual models in a co-simulation environment. A complete system simulation can take place in this environment. Therefore, the contribution of OPC UA as a generic middleware technology - a candidate for Industrie 4.0 scenarios that is being intensively discussed - is analysed. Through a prototypical implementation based on open62541, we can show a proof of concept by coupling different simulations (SIMIT and FMI instances). It also shows that our concept can be easily extended regarding the integration of new simulators.

关键词： Servers Adaptation models Data models Couplings Standards Registers

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Architectures for integrating functional safety into modular process plants

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IFAC-PapersOnLine 2015年第21期48卷 1321-1326页

作者： Pfeffer, Annett Urbas, Leon Chair of Process Control Systems Engineering Technische Universität Dresden Germany

As an approach to cope with rising volatility of sales markets and increasingly shorter development cycles, process industries are expecting much from the concept of modularization. However, a topic that is still rarely focused in this context is safety. Therefore, this paper is focused on the expected challenges of engineering functional safety including the architectures of safety instrumented systems, and the requirements of modularization. Possible architectures are presented and discussed in relation to the requirements of functional safety in modular process plants. © 2015

关键词： Architecture

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Analysis of fuzzy cognitive maps from ambiguity and fuzziness perspective

Analysis of fuzzy cognitive maps from ambiguity and fuzzines...

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International Symposium on Computational Intelligence and Informatics

作者： M. Furkan Dodurka Engin Yesil Leon Urbas Getron Corporation New Jersey NJ USA Chair for Process Control Systems Engineering Technische Universität Dresden Germany

ISBN: (纸本)9781509039104

In this study, Fuzzy Cognitive Maps (FCMs), which are powerful tools for graphical representation of knowledge, are analyzed from an ambiguity and fuzziness perspective. In conventional FCMs the causal strengths are represented with singleton (crisp) fuzzy numbers, but recently, other researchers proposed different FCM structures where uniform (interval) or triangular fuzzy numbers are used in causal strength representation. Here, FCMs are analyzed by means of fuzziness and ambiguity measures that are proposed in literature to investigate the capability of models to represent uncertainties. In addition, two new measures, called the average ambiguity measure (AAM) and the average fuzziness measure (AFM), are proposed to indicate uncertainty representation of an FCM. A well-known FCM model of a public health system is used as a case study to show how the fuzzy weights determine the uncertainty representation of FCMs, and then the outcomes are discussed.

关键词： Uncertainty Measurement uncertainty Fuzzy cognitive maps Fuzzy sets Fuzzy systems Inference mechanisms

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Integrating industrial middleware in Linked Data collaboration networks

Integrating industrial middleware in Linked Data collaborati...

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International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Markus Graube Leon Urbas Jan Hladik Chair for Process Control Systems Engineering Technische Universität Dresden Dresden Germany Faculty of Engineering Baden-WürttembergCooperative State University (DHBW) Stuttgart Germany

ISBN: (纸本)9781509013159

Within the Semantic Web field, Linked Data is an emerging technology offering advantages in terms of flexibility and openness also for industrial environments. It provides a powerful information model with simple extension mechanisms and a cross-domain character, which makes it possible to span flexible information spaces across enterprise boundaries. Thus, it is able to represent all facets of a digital plant, like devices and processes. Although developed with the focus on static data, it is also capable of handling dynamic data if the latter is adapted appropriately. This article describes these requirements and presents a concept for integrating process data into the Linked Data information space. A separation between a semantic description of the access to process data and the service providing exactly this information allows efficient and integration-ready access to data. The necessary vocabulary is described as well as the information model. A prototypical implementation of OPC UA integration into Linked Data is presented. The article further discusses the current status of the approach and provides future research challenges.

关键词： Resource description framework Semantics Data models Transient analysis Ontologies Aging

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Open Source as Enabler for OPC UA in Industrial Automation

Open Source as Enabler for OPC UA in Industrial Automation

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IEEE Conference on Emerging Technologies and Factory Automation

作者： Florian Palm Sten Gruner Julius Pfrommer Markus Graube Leon Urbas Chair of Process Control Engineering RWTH Aaachen University Fraunhofer IOSB Chair of Process Control Systems Engineering Technische Universitat Dresden

ISBN: (纸本)9781467379304

As a standardized communication protocol, OPC UA is the main focal point with regard to information exchange in the ongoing initiative Industrie 4.0. But there are also considerations to use it within the Internet of Things. The fact that currently no open reference implementation can be used in research for free represents a major problem in this context. The authors have the opinion that open source software can stabilize the ongoing theoretical work. Recent efforts to develop an open implementation for OPC UA were not able to meet the requirements of practical and industrial automation technology. This issue is addressed by the open62541 project which is presented in this article including an overview of its application fields and main research issues.

关键词： Industrial automation open source originating point code Internet of things open source software information exchange automation technology

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