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Heart Rate Measuring and Performance Evaluation from Carotid Artery and Occipital Artery According to Posture during Sleep Using Multiple Photo Plethysmo Gram (PPG) Sensor


  • Student, Department of Electrical, Electronic and Information Comm. Engineering, Graduated School of Tongmyong University, 428, Sinseon-ro. Nam-gu, Busan, Korea, Republic of
  • Student, Department of Computer Software, University of Science and Technology, 217,Gajeong-ro. Yuseong-gu, Daejeon, Korea, Republic of
  • Professor, Department of Electronic Engineering, Tongmyong University, 428, Sinseon-ro. Nam-gu, Busan, Korea, Republic of


Objectives: This paper will suggest that heart rate can be measured without motion artifacts even when the sleeping position is not constrained, but changes. Methods/Statistical Analysis: It was implement a heart rate measurement system, using the multiple Photo Plethysmo Gram (PPG) sensor and Fast Fourier Transform (FFT). And in experiments using the implemented system, it comparatively evaluates the performance of measuring heart rates at the carotid artery and the occipital artery around the neck according to changed sleeping positions against the performance of measuring heart rates at the finger. Findings: The deviations of heart rates measured at the carotid artery (1 minute: 1.07-6.21 bpm, 10 minutes: 0.57-5.18 bpm) and heart rates measured at the occipital artery (1 minute: 0.46-3.96 bpm, 10 minutes: 0.34- 5.2 bpm) from heart rate measured at the finger were found to be relatively low, with max 6.21 bpm at the carotid artery and max 5.2 bpm at the occipital artery. If heart rate had been found to be 0 or an abnormally high value, the deviation from heart rate at the finger would have shown a great difference. From this, It was found that there is almost no difference in the performance of heart-rate measurement the carotid artery and the occipital artery around the neck between the finger. Therefore, this paper suggested that it is possible to measure heart rates without noise even when sleeping positions are unconstrained and are subjected to changes. Improvements/Applications: From this, Can be measured during sleep, the unconstrained use heart rate in a variety of situations.


Carotid Artery, Heart Rate Measurement, Multiple Sensor, Occipital Artery, Photo Plethysmo Gram (PPG), Sleep.

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