| 摘要(英) |
In this thesis, we use transmitted PPG to measure human cardiac pulse waveforms. And we develop the algorithm for physiological signal to analyze the physiological rhythms and synchronized physiological interaction of cardiopulmonary system and respiratory system.
Based on Continuous Wavelet Transformation(CWT) and the CWT characteristic of analyzing real time spectrum, instantly monitor heart rate(HR) and heart rate variability(HRV) to prove that the moment of high HR(~2Hz) and low HR(~1Hz) corresponds to inspiration and expiration, respectively. We apply peak frequency of HR to depict waveform of HRV and obtain the frequency of respiration. And pick the signal of maximum weighting to derive the waveform of respiration.
According to the characteristic of Inverse Continuous Wavelet Transformation(ICWT), we can rebuild the signal without time delay and separate the HR signal into two parts, HR with inspiration and HR with expiration. Moreover, depict the evolution of HR waveform. Based on rebuilt waveform of respiration, determine the depth of respiration. Finally, by applying ICWT to second harmonic of HR, explain that the frequency of respiration(~0.1Hz) causes HR to form the waveforms with 0.1Hz beat frequency.
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| 參考文獻 |
1] Francois Guibert “Augmented Internet of Things”, COMPUTEX TAIPEI , Jun 9 , 2014
[2] Saverio Romeo , “Wearable Technology | Towards a multidisciplinary approach - Beecham Research “ , Jan 26, 2015
[3] COManlises , JCDelaCruz , CFausto , LMAMuralla , DMTPayas and MJTPosada ,” Monitoring of Blood Pressure Using Photoplethysmographic (PPG) Sensor with Aromatherapy Diffusion” , School of Electrical Electronics and Computer Engineering, Mapua Institute of Technology, Manila, Philippines , 6th IEEE , 2016
[4] Toshiyo Tamura *, Yuka Maeda , Masaki Sekine and Masaki Yoshida , “Wearable Photoplethysmographic Sensors—Past and Present” ,Electronics, 2014
[5] K.H.Shelley , A.A.Alian , A.J.Shelley ,R. “Role of the photoplethysmogrphic waveform in the care of high-risk surgical patients” Anesthesiology , June , 2013.
[6] Alex Page , Moeen Hassanalieragh , Tolga Soyata , Mehmet K. Aktas , Burak Kantarci , Silvana Andreescu , “Conceptualizing a Real-time Remote Cardiac Health Monitoring System” , ResearchGate , August 2015
[7] Hyun-Min Lee , Dong-Jun Kim , Heui-Kyung Yang , Kyeong-Seop Kim , Jeong-Whan Lee , Eun-Jong Cha , Kyung-Ah Kim,“Human Sensibility Evaluation using Photoplethysmogram(PPG)”, CISIS , IEEE , 2009
[8] J. P. Phillips ; V. Cibert-Goton ; R. M. Langford ; P. J. Shortland, “Perfusion assessment in rat spinal cord tissue using photoplethysmography and laser Doppler flux measurements,” J. Biomed. Opt., 18(3) , 2013.
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