Abstract

The increasing competition between manufacturers, the shortening of innovation cycles and the growing importance of resource-efficient manufacturing demand a higher versatility of factory automation. Service-oriented approaches depict a promising possibility to realize new control architectures by encapsulating the functionality of mechatronic devices into services. An efficient discovery, context-based selection and dynamic orchestration of these services are the key features for the creation of highly adaptable manufacturing processes. We describe a semantic service discovery and ad-hoc orchestration system, which is able to react to new process variants and changed contextual information (e.g., failure of field devices, requirements on the consumption of resources). Because a standardized vocabulary, especially for the description of mechatronic functionalities, is still missing in the manufacturing domain, the semantic description of services, processes and manufacturing plants as well as the semantic interpretation of contextual information play an important part.

Highlights

  • Industrial manufacturing is one of the world’s biggest economic factors

  • This article describes how semantic technologies can be applied to the dynamic context-based orchestration of technical manufacturing processes based on the concept of service-oriented architectures

  • After a brief introduction to the basic paradigms and concepts of service-oriented architectures and semantic web services, the article shows how these approaches can be transferred to the field of production automation (Section 2)

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Summary

Introduction

Industrial manufacturing is one of the world’s biggest economic factors. While Internet technologies keep changing the everyday life and open up new business fields in the consumer world, the domain of industrial manufacturing seems to be much more difficult to enter. This way, an efficient discovery and dynamic orchestration of services can be realized [4] This concept offers the possibility to describe the manufacturing process in an abstract way on a semantic level and to assign concrete services of devices and manufacturing modules right at the moment the product enters the manufacturing line. This article describes how semantic technologies can be applied to the dynamic context-based orchestration of technical manufacturing processes based on the concept of service-oriented architectures. After a brief introduction to the basic paradigms and concepts of service-oriented architectures and semantic web services, the article shows how these approaches can be transferred to the field of production automation (Section 2). Based on three central use cases, the authors derive which kind of semantic models are needed for the semantic description of web services provided by field devices, their discovery, selection and orchestration. The article concludes with a short summary and an outlook for future work

Service-Oriented Architectures
Semantic Technologies
Semantic Web Services
Service-Oriented Architectures in Production Automation
Semantic Web Services in Production Automation
Use Cases
Construction of Ontologies
Ontological Structure
Selection of an Upper Ontology
Base Ontology
Equipment Ontology
Function Ontology
Parameter Ontology
Plant Ontology
Device Ontologies
Semantic Annotation of Web Services
Service Registration and Semantic Service Repository
Semantic Discovery and Context-Based Orchestration
Context Interpretation for Service Rating and Selection
Experimental Setup
Conclusions and Future Work
Full Text
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