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Using Logical Time to Ensure Liveness in Material Handling Systems With Decentralized Control

Seibold, Zazilia; Furmans, Kai; Kevin, R.

Abstract (englisch):
We describe a method for decentralized control of route-based material handling systems in which devices have no central controller (by definition), no common source of information, and no synchronized or common clocks with which to plan and execute their activities. The control scheme is based on the concept of \emph{logical time}, which is a means of partially ordering events in computer operating systems. We modify the concept to the domain of material handling systems and prove system liveness. We conclude by describing GridSorter, a conveyance-based sorter that uses decentralized control and logical time to sort packages. A prototype has been successfully built and tested at the Institute for Material Handling and Logistics at Karlsruhe Institute of Technology.



Originalveröffentlichung
DOI: 10.1109/TASE.2020.3029199
Zugehörige Institution(en) am KIT Institut für Fördertechnik und Logistiksysteme (IFL)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1545-5955, 1558-3783
KITopen-ID: 1000126385
Erschienen in IEEE transactions on automation science and engineering
Seiten 1–8
Vorab online veröffentlicht am 19.11.2020
Schlagwörter material handling, decentralized control, logical time
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