Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/135859
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Type: | Journal article |
Title: | Multimode optical fiber specklegram smart bed sensor array |
Author: | Warren-Smith, S.C. Kilpatrick, A.D. Wisal, K. Nguyen, L.V. |
Citation: | Journal of Biomedical Optics, 2022; 27(6):067002-1-067002-12 |
Publisher: | Society of Photo-optical Instrumentation Engineers |
Issue Date: | 2022 |
ISSN: | 1083-3668 1560-2281 |
Statement of Responsibility: | Stephen C. Warren-Smith, Adam D. Kilpatrick, Kabish Wisal, and Linh V. Nguyen |
Abstract: | Significance: Monitoring the movement and vital signs of patients in hospitals and other healthcare environments is a significant burden on healthcare staff. Early warning systems using smart bed sensors hold promise to relieve this burden and improve patient outcomes.We propose a scalable and cost-effective optical fiber sensor array that can be embedded into a mattress to detect movement, both sensitively and spatially. Aim: Proof-of-concept demonstration that a multimode optical fiber (MMF) specklegram sensor array can be used to detect and image movement on a bed. Approach: Seven MMFs are attached to the upper surface of a mattress such that they cross in a 3 × 4 array. The specklegram output is monitored using a single laser and single camera and movement on the fibers is monitored by calculating a rolling zero-normalized cross-correlation. A 3 × 4 image is formed by comparing the signal at each crossing point between two fibers. Results: The MMF sensor array can detect and image movement on a bed, including getting on and off the bed, rolling on the bed, and breathing. Conclusions: The sensor array shows a high sensitivity to movement, which can be used for monitoring physiological parameters and patient movement for potential applications in healthcare settings. |
Keywords: | specklegram sensor multimode optical fiber optical fiber sensor sensor array smart bed |
Rights: | © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. [DOI: 10.1117/1.JBO.27.6.067002] |
DOI: | 10.1117/1.JBO.27.6.067002 |
Grant ID: | http://purl.org/au-research/grants/arc/FT200100154 http://purl.org/au-research/grants/arc/CE14010003 |
Published version: | http://dx.doi.org/10.1117/1.jbo.27.6.067002 |
Appears in Collections: | IPAS publications |
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hdl_135859.pdf | Published version | 3.02 MB | Adobe PDF | View/Open |
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