Encontrados 4 documentos, a visualizar página 1 de 1
Process Optimization of Service-Oriented Automation Devices Based on Petri Nets
J. Marco Mendes; Paulo Leitão; Francisco Restivo; Armando W. ColomboThis paper introduces a novel method for the specification and selection of criteria-weighted operation modes for the orchestration of services in industrial automation using Petri nets. The objective is to provide to the internal decision support system of a service-oriented automation device or of another applicable computational system the capability to select the best path in a Petri net orchestration model...
Composition of Petri Nets Models in Service-oriented Industrial Automation
J. Marco Mendes; Paulo Leitão; Francisco Restivo; Armando W. ColomboIn service-oriented systems, composition of services is required to build new, distributed and more complex services, based on the logic behavior of individual ones. This paper discusses the formal composition of Petri nets models used for the process description and control in service-oriented automation systems. The proposed approach considers two forms for the composition of services, notably the offline com...
Customizable Service-oriented Petri Net Controllers
J. Marco Mendes; Francisco Restivo; Paulo Leitao; Armando W. ColomboIn industrial automation, service-orientation is a relatively new and ascending concept and thus, concrete integrated methodologies are missing to accomplish the required development tasks. A suitable approach is to use the powerful set of features that Petri nets formalism provides for such dynamic systems. This paper presents a token game template that is part of the open methodology for the development of cu...
Towards Ubiquitous Production Systems and Enterprises
Goran Putnik; Carlos Cardeira; Paulo Leitão; Francisco Restivo; José Santos; A. Sluga; P. ButalaIn the evolvable manufacturing world we are moving towards systems made of small intelligent interacting units which make their own decisions independently from a centralized decision maker. System intelligence will be the collective intelligence resulting from a large number of individual decision, each one based on its local knowledge. In our paper we present the Ubiquitous Production Systems and Enterprises ...
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