Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System

Many investigators are interested in improving the control strategies of hand prosthesis to make it functional and more convenient to use. The most used control approach is based on the forearm muscles activities, named ‘ElectroMyoGraphic’ (EMG) signal. However, these biological signals are very sen...

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Main Authors: Ines Chihi, Mohamed Benrejeb
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2018/9789060
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author Ines Chihi
Mohamed Benrejeb
author_facet Ines Chihi
Mohamed Benrejeb
author_sort Ines Chihi
collection DOAJ
description Many investigators are interested in improving the control strategies of hand prosthesis to make it functional and more convenient to use. The most used control approach is based on the forearm muscles activities, named ‘ElectroMyoGraphic’ (EMG) signal. However, these biological signals are very sensitive to many disturbances and are generally unpredictable in time, type, and level. This leads to inaccurate identification of user intent and threatens the prosthesis control reliability. This paper proposed a real-time fault detection and localization approach applied to handwriting device on the plane. This approach allows connecting inputs (IEMG signals)/outputs (pen tip coordinates) data as a parametric model for Multi-Inputs Multi-Outputs (MIMO) system. The proposed approach is considered as a model-independent abrupt or intermittent fault detection method and as an alternative solution to the unpredictable input observer based techniques, without any observability requirements. This approach allows detecting, in real time, several types of faults in one or two inputs signals and in the same or different instants. Our study is appropriate for many rapidly expanding fields and practices, including biomedical engineering, robotics, and biofeedback therapy or even military applications.
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spelling doaj-art-61994a907db04dc38870aeb5754e11c92025-08-20T02:44:13ZengWileyComplexity1099-05262018-01-01201810.1155/2018/97890609789060Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting SystemInes Chihi0Mohamed Benrejeb1Laboratory of Research in Automation (LA.R.A)Laboratory of Research in Automation (LA.R.A)Many investigators are interested in improving the control strategies of hand prosthesis to make it functional and more convenient to use. The most used control approach is based on the forearm muscles activities, named ‘ElectroMyoGraphic’ (EMG) signal. However, these biological signals are very sensitive to many disturbances and are generally unpredictable in time, type, and level. This leads to inaccurate identification of user intent and threatens the prosthesis control reliability. This paper proposed a real-time fault detection and localization approach applied to handwriting device on the plane. This approach allows connecting inputs (IEMG signals)/outputs (pen tip coordinates) data as a parametric model for Multi-Inputs Multi-Outputs (MIMO) system. The proposed approach is considered as a model-independent abrupt or intermittent fault detection method and as an alternative solution to the unpredictable input observer based techniques, without any observability requirements. This approach allows detecting, in real time, several types of faults in one or two inputs signals and in the same or different instants. Our study is appropriate for many rapidly expanding fields and practices, including biomedical engineering, robotics, and biofeedback therapy or even military applications.http://dx.doi.org/10.1155/2018/9789060
spellingShingle Ines Chihi
Mohamed Benrejeb
Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System
Complexity
title Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System
title_full Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System
title_fullStr Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System
title_full_unstemmed Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System
title_short Online Fault Detection Approach of Unpredictable Inputs: Application to Handwriting System
title_sort online fault detection approach of unpredictable inputs application to handwriting system
url http://dx.doi.org/10.1155/2018/9789060
work_keys_str_mv AT ineschihi onlinefaultdetectionapproachofunpredictableinputsapplicationtohandwritingsystem
AT mohamedbenrejeb onlinefaultdetectionapproachofunpredictableinputsapplicationtohandwritingsystem