Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor

According to neuro-rehabilitation practice, active training is effective for mild stroke patients, which means these patients are able to recovery effective when they perform the training to overcome certain resistance by themselves. Therefore, for rehabilitation devices without backdrivability, imp...

Full description

Bibliographic Details
Main Authors: Zhibin Song, Shuxiang Guo, Nan Xiao, Baofeng Gao, Liwei Shi
Format: Article
Language:English
Published: MDPI AG 2012-11-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/12/12/16046
_version_ 1811279796587462656
author Zhibin Song
Shuxiang Guo
Nan Xiao
Baofeng Gao
Liwei Shi
author_facet Zhibin Song
Shuxiang Guo
Nan Xiao
Baofeng Gao
Liwei Shi
author_sort Zhibin Song
collection DOAJ
description According to neuro-rehabilitation practice, active training is effective for mild stroke patients, which means these patients are able to recovery effective when they perform the training to overcome certain resistance by themselves. Therefore, for rehabilitation devices without backdrivability, implementation of human-machine synchronization is important and a precondition to perform active training. In this paper, a method to implement this precondition is proposed and applied in a user’s performance of elbow flexions and extensions when he wore an upper limb exoskeleton rehabilitation device (ULERD), which is portable, wearable and non-backdrivable. In this method, an inertia sensor is adapted to detect the motion of the user’s forearm. In order to get a smooth value of the velocity of the user’s forearm, an adaptive weighted average filtering is applied. On the other hand, to obtain accurate tracking performance, a double close-loop control is proposed to realize real-time and stable tracking. Experiments have been conducted to prove that these methods are effective and feasible for active rehabilitation.
first_indexed 2024-04-13T01:02:18Z
format Article
id doaj.art-a2cc3bd9210a4d1895919ba562e16ccc
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-04-13T01:02:18Z
publishDate 2012-11-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-a2cc3bd9210a4d1895919ba562e16ccc2022-12-22T03:09:27ZengMDPI AGSensors1424-82202012-11-011212160461605910.3390/s121216046Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia SensorZhibin SongShuxiang GuoNan XiaoBaofeng GaoLiwei ShiAccording to neuro-rehabilitation practice, active training is effective for mild stroke patients, which means these patients are able to recovery effective when they perform the training to overcome certain resistance by themselves. Therefore, for rehabilitation devices without backdrivability, implementation of human-machine synchronization is important and a precondition to perform active training. In this paper, a method to implement this precondition is proposed and applied in a user’s performance of elbow flexions and extensions when he wore an upper limb exoskeleton rehabilitation device (ULERD), which is portable, wearable and non-backdrivable. In this method, an inertia sensor is adapted to detect the motion of the user’s forearm. In order to get a smooth value of the velocity of the user’s forearm, an adaptive weighted average filtering is applied. On the other hand, to obtain accurate tracking performance, a double close-loop control is proposed to realize real-time and stable tracking. Experiments have been conducted to prove that these methods are effective and feasible for active rehabilitation.http://www.mdpi.com/1424-8220/12/12/16046exoskeleton devicemotion trackingbackdrivabilitydouble close-loop control
spellingShingle Zhibin Song
Shuxiang Guo
Nan Xiao
Baofeng Gao
Liwei Shi
Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor
Sensors
exoskeleton device
motion tracking
backdrivability
double close-loop control
title Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor
title_full Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor
title_fullStr Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor
title_full_unstemmed Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor
title_short Implementation of Human-Machine Synchronization Control for Active Rehabilitation Using an Inertia Sensor
title_sort implementation of human machine synchronization control for active rehabilitation using an inertia sensor
topic exoskeleton device
motion tracking
backdrivability
double close-loop control
url http://www.mdpi.com/1424-8220/12/12/16046
work_keys_str_mv AT zhibinsong implementationofhumanmachinesynchronizationcontrolforactiverehabilitationusinganinertiasensor
AT shuxiangguo implementationofhumanmachinesynchronizationcontrolforactiverehabilitationusinganinertiasensor
AT nanxiao implementationofhumanmachinesynchronizationcontrolforactiverehabilitationusinganinertiasensor
AT baofenggao implementationofhumanmachinesynchronizationcontrolforactiverehabilitationusinganinertiasensor
AT liweishi implementationofhumanmachinesynchronizationcontrolforactiverehabilitationusinganinertiasensor