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A Controller Switching Mechanism for Resilient Wireless Sensor–Actuator Networks

Title
A Controller Switching Mechanism for Resilient Wireless Sensor–Actuator Networks
Author(s)
Cho, Byeong-MoonKim, SangjunKim, Kyoung-DaePark, Kyung-Joon
DGIST Authors
Cho, Byeong-MoonKim, SangjunKim, Kyoung-DaePark, Kyung-Joon
Issued Date
2022-02
Type
Article
Author Keywords
wireless sensor-actuator networkscyber-physical systemsindustrial internet of things
Keywords
ATTACK DETECTIONCONTROL-SYSTEMS
ISSN
2076-3417
Abstract
Controller failures can result in unsafe physical plant operations and deteriorated performance in industrial cyber–physical systems. In this paper, we present a controller switching mechanism over wireless sensor–actuator networks to enhance the resiliency of control systems against problems and potential physical failures. The proposed mechanism detects controller failures and quickly switches to the backup controller to ensure the stability of the control system in case the primary controller fails. To show the efficacy of our proposed method, we conduct a performance evaluation using a hardware-in-the-loop testbed that considers both the actual wireless network protocol and the simulated physical system. Results demonstrate that the proposed scheme recovers quickly by switching to a backup controller in the case of controller failure. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
URI
http://hdl.handle.net/20.500.11750/16516
DOI
10.3390/app12041841
Publisher
MDPI

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