| Summary: | 碩士 === 國立高雄應用科技大學 === 電子工程系碩士班 === 103 === The electrocardiogram (ECG) electrode patch is an important indicator in heart rate (HR). The photoplethysmography (PPG) sensing module is operated by light signals to measure pulse rate (PR) and oxygen saturation (SpO2). In order to get the human status analysis, we calculated the correlation from measuring the rates of PR and HR. This thesis combined with PPG and ECG to observe the R-R interval (RRI) of ECG and the peak-peak interval (PPI) of PPG waveforms, respectively. Besides, we recorded all peak signals that are corresponded to RRI and PPI. The PPG applied analog front-end (AFE) integrated circuit chip design system to measure the pulse rate and SpO2.
Through measuring the waveform of ECG and PPG in the time domain, this thesis applied Fourier transform to obtain the power spectral density (PSD). Due to the low frequency (LF) and the high frequency (HF) components of PSD are related with sympathetic and parasympathetic activities, the ratio of LF / HF represents the parameters of autonomic nervous system (ANS). In order to enhance the convenience and reduce the cost, this thesis adopted clip-PPG design module to replace the ECG electrode patch.
|
|---|
