Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand

Executing daily life activities is very challenging for those who missing their limbs due to amputation. Prosthetic technology becomes one of the alternative ways to replace the missing limb. However, recent prosthetics technology is still unable to meet the requirement of user due to less functiona...

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Main Author:	Yunus, Yusof
Format:	Thesis
Language:	English English
Published:	2021
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://eprints.utem.edu.my/id/eprint/26051/1/Multi-finger%20localization%20feedback%20through%20vibrotactile%20sensory%20substitution%20system%20for%20prosthetic%20hand.pdf http://eprints.utem.edu.my/id/eprint/26051/2/Multi-finger%20localization%20feedback%20through%20vibrotactile%20sensory%20substitution%20system%20for%20prosthetic%20hand.pdf
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spelling	my-utem-ep.260512022-10-03T11:23:31Z Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand 2021 Yunus, Yusof T Technology (General) TJ Mechanical engineering and machinery Executing daily life activities is very challenging for those who missing their limbs due to amputation. Prosthetic technology becomes one of the alternative ways to replace the missing limb. However, recent prosthetics technology is still unable to meet the requirement of user due to less functionality especially lack of sensory feedback. This research is to develop and analyse the vibrotactile sensory substitution system for multi-finger localisation feedback. Previous study has shown the capability of vibrotactile feedback as one of the successful method. The system developed must have accessible control of many parameters such as vibratory frequency, number of active motors and sequence of stimulation. Four experiments are conducted in this research. The first experiment is to study the relationship between input duty cycle injected to the motor and the vibratory frequency produces by the actuators. Next experiment is to evaluate the finger localisation by using three parameters (vibratory frequency, vibrotactile configuration and type of actuator). The third experiment is to evaluate five different designs of vibrotactile pattern stimulation (VPS) composed of different rhythm and burst actuation time. The last experiment is to evaluate the system on slipping detection. The key outcome measures for this research are recognition rate (accuracy) and Information Transfer (IT). The results show that the higher the vibratory frequency, the better the recognition rate and IT for ERM motor with 8% difference in score. Although, there is no significant difference between LRA and ERM motor, LRA motor is chosen due to its better performance and smaller size. The best VPS in experiment three are VPS4 and VPS5 due to its high accuracy score and IT. VPS4 score is 1.79 bits and VPS5 score is 1.63 bits while the other VPS score less than 1.2 bits. The system designed is applicable for slipping detection. The findings from this research provide an enhancement for haptic feedback development in prosthetic hand. 2021 Thesis http://eprints.utem.edu.my/id/eprint/26051/ http://eprints.utem.edu.my/id/eprint/26051/1/Multi-finger%20localization%20feedback%20through%20vibrotactile%20sensory%20substitution%20system%20for%20prosthetic%20hand.pdf text en public http://eprints.utem.edu.my/id/eprint/26051/2/Multi-finger%20localization%20feedback%20through%20vibrotactile%20sensory%20substitution%20system%20for%20prosthetic%20hand.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=121235 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Electronic and Computer Engineering Soo, Yew Guan
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Soo, Yew Guan
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery Yunus, Yusof Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
description	Executing daily life activities is very challenging for those who missing their limbs due to amputation. Prosthetic technology becomes one of the alternative ways to replace the missing limb. However, recent prosthetics technology is still unable to meet the requirement of user due to less functionality especially lack of sensory feedback. This research is to develop and analyse the vibrotactile sensory substitution system for multi-finger localisation feedback. Previous study has shown the capability of vibrotactile feedback as one of the successful method. The system developed must have accessible control of many parameters such as vibratory frequency, number of active motors and sequence of stimulation. Four experiments are conducted in this research. The first experiment is to study the relationship between input duty cycle injected to the motor and the vibratory frequency produces by the actuators. Next experiment is to evaluate the finger localisation by using three parameters (vibratory frequency, vibrotactile configuration and type of actuator). The third experiment is to evaluate five different designs of vibrotactile pattern stimulation (VPS) composed of different rhythm and burst actuation time. The last experiment is to evaluate the system on slipping detection. The key outcome measures for this research are recognition rate (accuracy) and Information Transfer (IT). The results show that the higher the vibratory frequency, the better the recognition rate and IT for ERM motor with 8% difference in score. Although, there is no significant difference between LRA and ERM motor, LRA motor is chosen due to its better performance and smaller size. The best VPS in experiment three are VPS4 and VPS5 due to its high accuracy score and IT. VPS4 score is 1.79 bits and VPS5 score is 1.63 bits while the other VPS score less than 1.2 bits. The system designed is applicable for slipping detection. The findings from this research provide an enhancement for haptic feedback development in prosthetic hand.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Yunus, Yusof
author_facet	Yunus, Yusof
author_sort	Yunus, Yusof
title	Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
title_short	Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
title_full	Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
title_fullStr	Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
title_full_unstemmed	Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
title_sort	multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Electronic and Computer Engineering
publishDate	2021
url	http://eprints.utem.edu.my/id/eprint/26051/1/Multi-finger%20localization%20feedback%20through%20vibrotactile%20sensory%20substitution%20system%20for%20prosthetic%20hand.pdf http://eprints.utem.edu.my/id/eprint/26051/2/Multi-finger%20localization%20feedback%20through%20vibrotactile%20sensory%20substitution%20system%20for%20prosthetic%20hand.pdf
_version_	1747834162000166912

Multi-finger localization feedback through vibrotactile sensory substitution system for prosthetic hand

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