힘 센서와 MSP430 기반 수면 중 움직임 측정 시스템 개발

다국어 초록 (Multilingual Abstract)

The purpose of this study is to develop a system that can measure the movement of the human body during sleep in a way that does not constrain the body. In this study, a measurement system was implemented using a strip-type force sensor placed on a mattress, under the user"s body, and an MSP430G2553 ultra-low-power processor. The strip sensor was fabricated using Polyvinylidene fluoride film. The signal obtained from the sensor was pre-processed and amplified through the developed analog front-end, and then converted to a digital signal through the ADC of MSP430. The MSP430 uses a timer interrupt and an ADC interrupt to minimize CPU operation time for low power operation. Through the comparison with the reference instrument, it was confirmed that the developed system can track the tossing, turning and breathing signals during sleep.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 측정 시스템 설계
• 3. 결과
• 4. 결론
• Reference

참고문헌 (Reference)

1 S. H. Hwang, "Unconstrained sleep apnea monitoring using polyvinylidene fluoride film-based sensor" 61 (61): 2125-2134, 2014

2 F. Touati, "U-healthcare system : State-ofthe-art review and challenges" 37 (37): 9949-, 2013

3 "SleepNumber"

4 Texas Instruments, "SLAU144I: MSP430x2xx Family: User’s Guide"

5 N. Bu, "Monitoring of respiration and heartbeat during sleep using a flexible piezoelectric film sensor and empirical mode decomposition" IEEE 1362-1366, 2007

6 A. Beda, "Low frequency heart rate variability is related to the breath to breath variability in the respiratory pattern" 51 (51): 197-205, 2014

7 R. Seepold, "Home Hospital e-Health Centers for Barrier-Free and Cross-Border Telemedicine" Springer 307-316, 2019

8 A. Fernandez, "Getting startedwith the MSP430 launchpad" 2013

9 "EarlySense"

10 F. Wang, "Development of a PVDF piezopolymer sensor for unconstrained in-sleep cardiorespiratory monitoring" 14 (14): 185-190, 2003

11 Y. He, "Assess Novelty of an Invention Using the central-extreme novelty matrix: a case study of juvo labs’s fibre-optic sensor mat" University of Bath 134-141, 2018

12 J. M. Perez-Macias, "36th Annual InternationalConference of the IEEE Engineering in Medicine and Biology Society, IEEE, pp" IEEE 4979-4982, 2014