PPG 센서를 이용한 반려동물용 SPO2 웨어러블 장치의 설계 및 구현
A Design and Implementation of SpO2 Wearable Device for Companion Animals in PPG Signals
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초록
반려동물의 상태 측정에서 가장 기본적인 사항은 호흡과 맥박의 체크이다. 반려동물의 호흡과맥박을 측정하는 방법은 여러 가지가 있는데, 반려동물에게서 산소포화도(SpO2)를 측정하기 위해서는 일반적으로 PPG 방식을 많이 사용한다. 그러나 입력되는 PPG 신호는 산소포화도뿐만 아니라 여러 정보가 섞여서 입력되기 때문에 산소포화도를 측정하기 위해서는 PPG 신호로부터 산소포화도 정보를 분리하여 추출해야만 한다. 따라서 본 논문에서는 PPG 방식을 적용하여 측정할 수있는 반려동물용 웨어러블 측정 장치를 설계하고 구현하였으며, 이 웨어러블 측정 장치를 통해입력되는 PPG 신호에서 산소포화도 정보를 분리하는 알고리즘을 제안하였다.
Abstract
The most basic thing to measure the condition of a companion animal is to check the breathing and pulse. There are several methods to measure the breathing and pulse of a companion animal, and the PPG method is generally used to measure the oxygen saturation (SpO2) in a companion animal. However, since the input PPG signal is inputted with various information as well as oxygen saturation, it is necessary to separate and extract oxygen saturation information from the PPG signal in order to measure the oxygen saturation. Therefore, in this paper, a wearable measuring device for companion animals that can be measured by applying the PPG method was designed and implemented, and an algorithm for separating oxygen saturation information from the PPG signal input through the wearable measuring device was proposed.
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