A study on sleep posture analysis using fibre bragg grating arrays based mattress.

IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Manish Mishra, Prasant Kumar Sahu, Mrinal Datta
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引用次数: 0

Abstract

Prolonged sleeping postures or unusual postures can lead to the development of various ailments such as subacromial impingement syndrome, sleep paralysis in the elderly, nocturnal gastroesophageal reflux, sore development, etc Fibre Bragg Gratings (a variety of optical sensors) have gained huge popularity due to their small size, higher sensitivity and responsivity, and encapsulation flexibilities. However, in the present study, FBG Arrays (two FBGs with 10 mm space between them) are employed as they are advantageous in terms of data collection, mitigating sensor location effects, and multiplexing features. In this work, Liquid silicone encapsulated FBG arrays are placed in the head (E), shoulder (C, D), and lower half body (A, B) region for analyzing the strain patterns generated by different sleeping postures namely, Supine (P1), Left Fetus (P2), Right Fetus (P3), and Over stomach (P4). These strain patterns were analyzed in two ways, combined (averaging the data from each FBG of the array) and Individual (data from each FBG was analyzed separately). Both analyses suggested that the FBGs in the arrays responded swiftly to the strain changes that occurred due to changes in sleeping postures. 3D histograms were utilized to track the strain changes and analyze different sleeping postures. A discussion regarding closely related postures and long hour monitoring has also been included. Arrays in the lower half (A, B) and shoulder (C, D) regions proved to be pivotal in discriminating body postures. The average standard deviation of strain for the different arrays was in the range of 0.1 to 0.19 suggesting the reliable and appreciable strain-handling capabilities of the Liquid silicone encapsulated arrays.

利用基于光纤布拉格光栅阵列的床垫进行睡姿分析的研究。
长时间的睡姿或不正常的姿势会导致各种疾病的发生,如肩峰下撞击综合征、老年人睡眠麻痹、夜间胃食管反流、疮疡等。光纤布拉格光栅(一种光学传感器)因其体积小、灵敏度和响应度高、封装灵活等优点而大受欢迎。不过,在本研究中,采用的是光纤光栅阵列(两个光纤光栅之间有 10 毫米的空间),因为它们在数据收集、减轻传感器位置效应和多路复用功能方面具有优势。在这项工作中,液态硅胶封装的 FBG 阵列被放置在头部(E)、肩部(C、D)和下半身(A、B)区域,用于分析不同睡姿(即仰卧(P1)、左胎(P2)、右胎(P3)和俯卧(P4))产生的应变模式。这些应变模式有两种分析方法,一种是组合分析(对阵列中每个 FBG 的数据进行平均),另一种是单独分析(对每个 FBG 的数据进行单独分析)。这两种分析表明,阵列中的 FBG 对睡姿变化引起的应变变化反应迅速。三维直方图用于跟踪应变变化和分析不同的睡眠姿势。此外,还对密切相关的姿势和长时间监测进行了讨论。事实证明,下半身(A、B)和肩部(C、D)区域的阵列在辨别身体姿势方面起着关键作用。不同阵列的平均应变标准偏差在 0.1 到 0.19 之间,这表明液体硅胶封装阵列具有可靠和显著的应变处理能力。
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来源期刊
Biomedical Physics & Engineering Express
Biomedical Physics & Engineering Express RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
CiteScore
2.80
自引率
0.00%
发文量
153
期刊介绍: BPEX is an inclusive, international, multidisciplinary journal devoted to publishing new research on any application of physics and/or engineering in medicine and/or biology. Characterized by a broad geographical coverage and a fast-track peer-review process, relevant topics include all aspects of biophysics, medical physics and biomedical engineering. Papers that are almost entirely clinical or biological in their focus are not suitable. The journal has an emphasis on publishing interdisciplinary work and bringing research fields together, encompassing experimental, theoretical and computational work.
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