Wheelchair automation using electromyographic signals obtained from facial movements

Wheelchair automation using electromyographic signals obtained from facial movements

Tetraplegia is a disease that can be caused by different factors, whether congenital or accidental, limiting people to live without being able to move both the lower and upper extremities. The present work shows the development of a prototype of a wheelchair for quadriplegics controlled by facial mo...

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Autores principales: García García, Jesús, Peñaloza Mendoza, Guillermo Rey, Castro Zenil, Mario Salvador, Becerra Tapia, Víctor
Formato: Online
Lenguaje:spa
Publicado: Universidad Autónoma de Baja California 2023
Acceso en línea:https://recit.uabc.mx/index.php/revista/article/view/317
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id recit-article-317
record_format ojs
institution RECIT
collection OJS
language spa
format Online
author García García, Jesús
Peñaloza Mendoza, Guillermo Rey
Castro Zenil, Mario Salvador
Becerra Tapia, Víctor
spellingShingle García García, Jesús
Peñaloza Mendoza, Guillermo Rey
Castro Zenil, Mario Salvador
Becerra Tapia, Víctor
Wheelchair automation using electromyographic signals obtained from facial movements
author_facet García García, Jesús
Peñaloza Mendoza, Guillermo Rey
Castro Zenil, Mario Salvador
Becerra Tapia, Víctor
author_sort García García, Jesús
title Wheelchair automation using electromyographic signals obtained from facial movements
title_short Wheelchair automation using electromyographic signals obtained from facial movements
title_full Wheelchair automation using electromyographic signals obtained from facial movements
title_fullStr Wheelchair automation using electromyographic signals obtained from facial movements
title_full_unstemmed Wheelchair automation using electromyographic signals obtained from facial movements
title_sort wheelchair automation using electromyographic signals obtained from facial movements
description Tetraplegia is a disease that can be caused by different factors, whether congenital or accidental, limiting people to live without being able to move both the lower and upper extremities. The present work shows the development of a prototype of a wheelchair for quadriplegics controlled by facial movements, this in order to give the patient independence and improve their emotional state by not requiring help to carry out the task of moving the chair. For the implementation of the prototype, an electronic circuit for analog acquisition, amplification and filtering of electromyography (EMG) signals was designed and built, which provides a signal corresponding to the degree of movement of the facial muscles. Subsequently, the signal obtained from the analog base board is digitized and processed with the help of an ATmega328p microcontroller, where additional filtering is performed and the movement made from the signals obtained is determined. This information is sent via Bluetooth connection to a second ATmega328p microcontroller in the physical prototype of the wheelchair. With the information of the action on the wheelchair's microcontroller, the conditioning of the signal is carried out to control the motors that will carry out the corresponding movement. Finally, a mobile application was designed and implemented to control the prototype through buttons, with the idea that a person responsible for the user of the chair can take control if necessary. As a result, the system was implemented on a basic commercial wheelchair, where the motors and a transmission by bands were adapted to generate the movement, this allowed basic control through facial movement and through the mobile application, however, the EMG system requires to be calibrated for different users. As future work, it is proposed to modify the transmission of the prototype and allow an automatic calibration to be applied regardless of the user.
publisher Universidad Autónoma de Baja California
publishDate 2023
url https://recit.uabc.mx/index.php/revista/article/view/317
_version_ 1792095386754613248
spelling recit-article-3172024-02-13T02:55:52Z Wheelchair automation using electromyographic signals obtained from facial movements Automatización de silla de ruedas empleando señales electromiográficas obtenidas a partir de movimientos faciales García García, Jesús Peñaloza Mendoza, Guillermo Rey Castro Zenil, Mario Salvador Becerra Tapia, Víctor Automatización Discapacidad motriz Electromiografía Silla de ruedas Tetraplejia Automation Motor disability Electromyography Wheelchair Tetraplegia Tetraplegia is a disease that can be caused by different factors, whether congenital or accidental, limiting people to live without being able to move both the lower and upper extremities. The present work shows the development of a prototype of a wheelchair for quadriplegics controlled by facial movements, this in order to give the patient independence and improve their emotional state by not requiring help to carry out the task of moving the chair. For the implementation of the prototype, an electronic circuit for analog acquisition, amplification and filtering of electromyography (EMG) signals was designed and built, which provides a signal corresponding to the degree of movement of the facial muscles. Subsequently, the signal obtained from the analog base board is digitized and processed with the help of an ATmega328p microcontroller, where additional filtering is performed and the movement made from the signals obtained is determined. This information is sent via Bluetooth connection to a second ATmega328p microcontroller in the physical prototype of the wheelchair. With the information of the action on the wheelchair's microcontroller, the conditioning of the signal is carried out to control the motors that will carry out the corresponding movement. Finally, a mobile application was designed and implemented to control the prototype through buttons, with the idea that a person responsible for the user of the chair can take control if necessary. As a result, the system was implemented on a basic commercial wheelchair, where the motors and a transmission by bands were adapted to generate the movement, this allowed basic control through facial movement and through the mobile application, however, the EMG system requires to be calibrated for different users. As future work, it is proposed to modify the transmission of the prototype and allow an automatic calibration to be applied regardless of the user. La tetraplejia es una enfermedad que puede ser ocasionada por distintos factores ya sean congénitos o accidentes, limitando a las personas a vivir sin poder realizar movimientos en las extremidades tanto inferiores como superiores. El presente trabajo muestra el desarrollo de un prototipo de una silla de ruedas para tetrapléjicos controlada mediante movimientos faciales, esto con la finalidad de dar independencia al paciente y mejorar su estado emocional, al no requerir ayuda para realizar la tarea de mover la silla. Para la implementación del prototipo se diseñó y construyó un circuito electrónico de adquisición, amplificación y filtrado analógico de las señales de electromiografía (EMG), el cual otorga una señal correspondiente al grado de movimiento de los músculos faciales. Posteriormente, la señal obtenida de la placa analógica base es digitalizada y procesada con la ayuda de un microcontrolador ATmega328p, donde se realiza un filtrado adicional y se determina el movimiento realizado a partir de las señales obtenidas, esta información es enviada mediante conexión Bluetooth a un segundo microcontrolador ATmega328p en el prototipo físico de la silla de ruedas. Con la información de la acción sobre en microcontrolador de la silla de ruedas, se realiza el acondicionamiento de la señal para el control de los motores que realizarán el movimiento correspondiente. Por último, se diseñó e implementó una aplicación móvil para el control del prototipo mediante botones, con la idea de que un responsable del usuario de la silla pueda tomar el control en caso de ser necesario. Como resultados se implementó el sistema sobre una silla de ruedas comercial básica, donde se adaptaron los motores y una transmisión por bandas para generar el movimiento. Esto permitió el control básico a través del movimiento facial y por medio de la aplicación móvil, sin embargo, el sistema de EMG requiere ser calibrado para usuarios diferentes. Como trabajo futuro se plantea modificar la transmisión del prototipo y permitir una calibración automática para ser aplicado indistintamente del usuario. Universidad Autónoma de Baja California 2023-10-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html application/zip https://recit.uabc.mx/index.php/revista/article/view/317 10.37636/recit.v6n4e317 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 6 No. 4 (2023): October-December; e317 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 6 Núm. 4 (2023): Octubre-Diciembre; e317 2594-1925 spa https://recit.uabc.mx/index.php/revista/article/view/317/488 https://recit.uabc.mx/index.php/revista/article/view/317/489 https://recit.uabc.mx/index.php/revista/article/view/317/490 Copyright (c) 2023 Jesús García García, Guillermo Rey Peñaloza Mendoza, Mario Salvador Castro Zenil, Víctor Becerra Tapia https://creativecommons.org/licenses/by/4.0

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