Journal of Integrative Natural Science (통합자연과학논문집)

The Basic Science Institute Chosun University (조선대학교 기초과학연구원)
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A Study on LED Lighting Control according to Sleep Stage using PPG Sensor of Wearable Device

  • Song, Jeong Sang (Department of Computer Science & Statistics, Chosun University) ;
  • Kim, Tae Yeun (SW Convergence Education Institute, Chosun University) ;
  • Bae, Sang Hyun (Department of Computer Science & Statistics, Chosun University)
  • Received : 2019.02.22
  • Accepted : 2019.03.07
  • Published : 2019.03.30
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Abstract

Recently, as the sleep disorder problem of modern people deepens, the interest towards quality of sleep is increasing. To increase the quality of modern people's sleep. This paper has suggested an LED lighting control system according to the sleep stage using PPG sensors of wearable devices. The pulse of the wrist radial artery was measured using a wearable device mounted with PPG sensor, which enables heart rate-measuring, and by using the point that heart rate lowers during stable sleep than non-sleeping, the LED lighting of indoors was controlled, which is the disturbing element when sleeping. For the performance evaluation, a 10-Fold cross analysis was conducted for performance evaluation, and a result of an average accuracy 87.02% was obtained as a result. Therefore, the LED lighting control system according to the sleep stage using a wearable device of this paper is expected to contribute to raise the quality of the user's life.

Keywords

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Fig. 1. Composition diagram of the system.

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Fig. 2. Location of radial artery measurement on wrist.

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Fig. 3. Flowchart of heart rate measurement and classification algorithms.

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Fig. 4. The configuration diagram of the LED lighting control system.

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Fig. 5. Implementation of the system (Application).

Table 1. Biometric data rang measured by PPG sensor

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Table 2. Results of 10-fold cross validation

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