Soft-Wearable Device for the Estimation of Shoulder Orientation and Gesture

Abstract

This study presents the development of a wearable device that merges capacitive soft-flexion and surface electromyography (sEMG) sensors for the estimation of shoulder orientation and movement, evaluating five natural movement gestures of the human arm. The use of Time Series Networks (TSN) to estimate the arm orientation, and a pattern recognition method for the estimation of the classification of the gesture are proposed. It is demonstrated that it is possible to know the orientation of the shoulder, and that the algorithm is capable of recognising the five gestures proposed with two different configurations. The study is performed on people who reported healthy upper limbs.

Un exoesqueleto flexible y textil para asistir la flexión del codo

“…El husillo es de 140mm y la tuerca de nailon integra un retén antideslizante. En artículos previos se describe el sistema de control y las distintas estrategias de sensado blando [4,14,15,18]. El exotraje usa una chaqueta elástica de ciclismo como tejido base para unificar y estandarizar el diseño.…”

Efficient Upper Limb Position Estimation Based on Angular Displacement Sensors for Wearable Devices

“…It was proved that it is possible to obtain 95% of the variance of the main components for shoulder gestures with an array of seven single-axis resistive sensors [ 19 ]. Other results showed that it is possible to estimate the gestures of the shoulder with a performance 95.4% using an array of four WFSs and EMG signals [ 28 ]. In this work, a rigorous extension was performed using the two-axis sADS whose operation is explained and detailed in [ 29 , 30 ].…”

Simulación de los datos de un exoesqueleto en tareas de rehabilitación para miembros superiores.

“…Existen aplicaciones de captura de movimiento junto a modelos de cinemática que mejoran la comprensión de las trayectorias realizadas por las extremidades superiores. El modelo visto en [5] integra sensores flexibles y electromiográficos superficiales o sEMG para estimar la orientación del hombro por medio de una evaluación de gestos. Estos sistemas proveen un medio extra para la recolección de datos y el estudio en sesiones de rehabilitación.…”