Figure 5.

Configuration screen and actual operation of this system during testing. In addition to displaying the PPG waveform in real-time, the analysis program also displays the current heart rate, blood oxygen concentration, and systolic and diastolic blood pressure calculated by each pulse wave. Although a personal computer is used as a demonstration, since the calculation amount is not as large as that of a deep learning algorithm, even a Raspberry Pi single-board microcomputer or a single-chip MCU is suitable for porting to portable devices. For information about the operation mode and result presentation of this system, please refer to Movie S1 in the supplementary file.