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Title:
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Synchronizing sampling and actuation in the absence of global time in networked control systems
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Author:
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Martí Colom, Pau; Camacho Santiago, Antonio; Velasco García, Manel; Marès Martí, Pere; Fuertes Armengol, José Mª
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial |
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Abstract:
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The successful operation of Networked Control Sys-tems (NCS) requires employing appropriate approachesfor dealing with network induced time delays, i.e. timeintervals elapsed from consecutive sampling and actua-tion operations. Effective approaches often require to im-pose periodic execution for the sampling and/or actuationoperations, enforcing synchronized constant time delays.And considering that sampling and actuation is performedin different nodes, global time between nodes achieved byclock synchronization is the standard assumption or strat-egy that enables such synchronized operations. This pa-per presents a technique that permits to implement thesesynchronized operations in NCS in the absence of globaltime. Experimental results corroborate the effectivenessof the presented approach. |
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Publication date:
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2012-05-11 |
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Subject(s):
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Àrees temàtiques de la UPC::Informàtica::Automàtica i control Synchronization Automatic control Discrete-time systems Digital control systems Temps real (Informàtica) Control automàtic -- Sensors Control automàtic -- Sistemes Control digital |
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Rights:
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Restricted access - publisher's policy |
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Document type:
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Conference Object |
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