Authors:
Lukas Malburg
1
;
Patrick Klein
1
and
Ralph Bergmann
1
;
2
Affiliations:
1
Business Information Systems II, University of Trier, 54296 Trier, Germany
;
2
German Research Center for Artificial Intelligence (DFKI), Branch University of Trier, Behringstraße 21, 54296 Trier, Germany
Keyword(s):
Semantic Web Services, Industry 4.0, Artificial Intelligence, Flexible Cyber-Physical Workflows, OWL-S, WSMO.
Abstract:
The transition to Industry 4.0 requires smart manufacturing systems that are easily configurable and provide a high level of flexibility during manufacturing in order to achieve mass customization or to support cloud manufacturing. To realize this, Cyber-Physical Systems (CPSs) combined with Artificial Intelligence (AI) methods find their way into manufacturing shop floors. For using AI methods in the context of Industry 4.0, semantic web services are indispensable to provide a reasonable abstraction of the underlying manufacturing capabilities. In this paper, we present semantic web services for AI-based research with physical factory simulation models in Industry 4.0. Therefore, we developed 70 semantic web services based on Web Ontology Language for Web Services (OWL-S) and Web Service Modeling Ontology (WSMO) and linked them to an already existing domain ontology for intelligent manufacturing control. Suitable for the requirements of CPS environments, our pre- and postconditions
are verified in near real-time by invoking other semantic web services in contrast to complex reasoning within the knowledge base. Finally, we examine the feasibility of our approach by executing a cyber-physical workflow composed of semantic web services using a state-of-the-art workflow management system.
(More)