Event-based data scheduling for a class of interconnected networked control systems

Mohammad H. Mamduhi, Frederik Deroo, Sandra Hirche

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

2 Zitate (Scopus)

Abstract

In this paper we address the problem of event-based data scheduling for a class of physically interconnected networked control systems which compete for limited communication resources. The overall interconnected system consists of multiple heterogeneous LTI sub-systems with the physical interconnection being modeled by a directed acyclic graph (DAG). The sub-systems are controlled by a networked controller through a shared communication channel. In order to cope with the limited channel capacity, we introduce a bi-character deterministic-probabilistic scheduling mechanism which dynamically assigns access priorities to each sub-system at each time-step according to an error-dependent priority measure. The sub-systems which are granted channel access then transmit their state information through the communication network. Given an emulation-based control strategy, we prove stability of such networked systems under the proposed scheduling law in terms of f-ergodicity of overall network-induced error. Simulation results illustrate the proposed approach and show a reduction in the error variance compared to standard TDMA and uniform random-access scheduling policies.

OriginalspracheEnglisch
Titel54rd IEEE Conference on Decision and Control,CDC 2015
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers Inc.
Seiten4183-4189
Seitenumfang7
ISBN (elektronisch)9781479978861
DOIs
PublikationsstatusVeröffentlicht - 8 Feb. 2015
Veranstaltung54th IEEE Conference on Decision and Control, CDC 2015 - Osaka, Japan
Dauer: 15 Dez. 201518 Dez. 2015

Publikationsreihe

NameProceedings of the IEEE Conference on Decision and Control
Band54rd IEEE Conference on Decision and Control,CDC 2015
ISSN (Print)0743-1546
ISSN (elektronisch)2576-2370

Konferenz

Konferenz54th IEEE Conference on Decision and Control, CDC 2015
Land/GebietJapan
OrtOsaka
Zeitraum15/12/1518/12/15

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