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doi:10.22028/D291-29304
Titel: | Reconfiguration Control of Dynamic Reconfigurable Discrete Event Systems Based on NCESs |
VerfasserIn: | Zhang, Jiafeng Li, Hongyi Frey, Georg Li, Zhiwu |
Sprache: | Englisch |
Titel: | IEEE transactions on control systems technology : a publication of the IEEE Control Systems Society |
Bandnummer: | 28 |
Heft: | 3 |
Startseite: | 857 |
Endseite: | 868 |
Verlag/Plattform: | IEEE |
Erscheinungsjahr: | 2019 |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | In order to satisfy system specifications persistently in the cases of component failure, partial communication blocks, or energy deficiency, safety-critical systems need to apply system reconfigurations at runtime. Such systems can be considered as dynamic reconfigurable discrete event systems (DRDESs) if their logic behaviors are concerned only. A reconfiguration of a DRDES includes the switch of system structures and the update of system states. Based on the assumption that all configurations of a DRDES are designed in advance and dynamic reconfigurations can be implemented only at a few predefined reconfigurable states, a novel reconfiguration control method is proposed in this paper. The aim is to implement a required dynamic reconfiguration smoothly and rapidly. A DRDES is modeled by net condition/event systems (NCESs) under the firing rule “maximal single spontaneous transition steps.” An integer linear programming-based method is developed to compute a shortest legal firing sequence (SLFS) from the state where a reconfiguration requirement arises to a reconfigurable state. Accordingly, a virtual controller for guiding the system to evolve along the obtained SLFS is proposed. The proposed method is able to implement a required reconfiguration before the maximum permissible reconfiguration delay if an SLFS exists. A simple reconfigurable assembly system is adopted to illustrate the method. |
DOI der Erstveröffentlichung: | 10.1109/TCST.2019.2894566 |
URL der Erstveröffentlichung: | https://ieeexplore.ieee.org/document/8642535 |
Link zu diesem Datensatz: | hdl:20.500.11880/27846 http://dx.doi.org/10.22028/D291-29304 |
ISSN: | 1063-6536 1558-0865 |
Datum des Eintrags: | 20-Sep-2019 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Systems Engineering |
Professur: | NT - Prof. Dr. Georg Frey |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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