Electronic system for step width estimation using programmable system-on-chip technology and time of flight cameras.
Human gait
Motion capture
POMA test
Programming system on chip
Step width
Time-of-flight camera
Journal
HardwareX
ISSN: 2468-0672
Titre abrégé: HardwareX
Pays: England
ID NLM: 101710262
Informations de publication
Date de publication:
Oct 2020
Oct 2020
Historique:
received:
09
04
2020
revised:
28
06
2020
accepted:
14
07
2020
entrez:
2
5
2022
pubmed:
18
7
2020
medline:
18
7
2020
Statut:
epublish
Résumé
This paper proposes a low-cost portable electronic system for estimating step width during the human gait cycle. This device, intended to support the Walking Stance item of the fall risk assessment test Performance Oriented Mobility Assessment (POMA), contains three electronic boards, comprising two sensing nodes and a concentrator. Each sensing node contains a force sensitive resistor (FSR) and time-of-flight camera (TOF). Each FSR is placed inside the subject's shoe, while each TOF camera is located at the back of their foot. The FSR detects contact between heel and ground, and the TOF measures the distance to a barrier located on the right side of the walking path. Step width is calculated as the difference between the TOF measurements. After the walk is complete, the information obtained by the FSRs and TOFs is sent via a 433 MHz wireless communication to the concentrator board, which is connected to the USB port of a personal computer (PC). The proposed step width measurement system was validated with an infrared based motion capture (Vicon Corp.), giving an error equal to 11.4%
Identifiants
pubmed: 35498248
doi: 10.1016/j.ohx.2020.e00126
pii: S2468-0672(20)30035-3
pmc: PMC9041237
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e00126Informations de copyright
© 2020 The Authors.
Déclaration de conflit d'intérêts
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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