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Published in:
2013 | OriginalPaper | Chapter
Set-Based Detection and Isolation of Intersampled Delays and Pocket Dropouts in Networked Control
Authors : Nikola Stanković, Sorin Olaru, Silviu-Iulian Niculescu
Published in: Knowledge Engineering, Machine Learning and Lattice Computing with Applications
Publisher: Springer Berlin Heidelberg
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This paper focuses on the set-based method for
detection and isolation
of the network-induced
time-delays
and
packet dropouts
. We particularly pay attention to the systems described by a linear discrete-time equation affected by additive disturbances, controlled via
redundant
communication channels prone to intersampled time-delays and packet dropouts. Time-delays and packet dropouts are considered as faults from a classical control theory perspective. We will show that fault detection and isolation can be achieved indirectly through the separation of
positively invariant sets
that correspond to the closed-loop dynamics with
healthy
and
faulty
communication channels. For this purpose, in order to provide a reference signal that uniquely guarantees the fault detection and isolation in real time, we design a
reference governor
using receding horizon technique.