Fault-tolerant synchronized motion control for crane system using wireless sensor networks

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Abstract

This paper presents a fault-tolerant control strategy to accommodate faulty actuators in a crane system using wireless communications. The proposed control system contains several intelligent nodes which are interconnected by a wireless sensor network. A time-triggered protocol implemented on top of IEEE802.15.4 is employed to avoid the problems with randomly varying message latency and the "hidden terminal." The reconfiguration strategy to tolerate faulty actuators is based on an IMC-PID controller of which parameters are adjusted online through an iterative optimization process using the diagnostic information being generated by smart actuators. The effectiveness of the proposed approach in the presence of actuator fault is demonstrated using a DC-motor based experimental system.

Original languageEnglish
Title of host publicationSAFEPROCESS'09 - 7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, Proceedings
Pages989-994
Number of pages6
DOIs
StatePublished - 2009
Event7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09 - Barcelona, Spain
Duration: 30 Jun 20093 Jul 2009

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
ISSN (Print)1474-6670

Conference

Conference7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09
Country/TerritorySpain
CityBarcelona
Period30/06/093/07/09

Keywords

  • Fault-tolerant control
  • IEEE802.15.4
  • Intelligent agent
  • Networked control systems
  • Reconfigurable control

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