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Ä Ö Ü ä ö ü ß
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      주제어 : physiological pulse signal (검색결과 2 건)
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      • 상용 Force Sensitive Resistor(FSR)을 이용한 상완동맥에서의 인체 맥파 측정과 혈관의 긴장도, SDPTG Aging Index 분석

        장창호 ( Jang Chang-ho ) 한국노인의료복지학회 2018 노인의료복지연구 Vol.10 No.2

        This study conducted to confirm the possibility of pulse monitoring in the brachial artery through commercial FSR. The pulse from human body was measured by attaching FSR to the skin near the brachial artery and radial artery of the subject. For smooth measurement, the cylindrical structure was designed and attached to the FSR, and pulse signals measured from the brachial artery and the radial artery were compared each other. Using the relationship between the systolic peak and the diastolic peak of acquired pulse signals, the stiffness index(SI), which is reported to be related to the stiffness of blood vessel, was calculated. Also, the SDPTG aging index, which is proportional to the age of the subject, was calculated through five peak points obtained by second differentiation of the pulse signals. Pulse rate measured in the brachial artery and radial artery was similar at about 96 bpm, and the pulse signals measured at the two sites was clearly distinguishable. In addition, the SI and SDPTG aging indices were 6.81 m/s and -1.966, respectively, which were close to the normal range. Therefore, this study confirmed the possibility of pulse monitoring in the brachial artery through commercial FSR proposed. Subsequently, ths next studies should be conducted to derive statistical estimates from pulse data measured in several subjects.

      • Design of a Low-Power Consumption Wearable Reflectance Pulse Oximetry for Ubiquitous Healthcare System

        Sang-Joong Jung,Young-Dong Lee,Yong-Su Seo,Wan-Young Chung 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10

        This paper describes the designation of a real-time, wearable reflectance pulse oximetry based on a wireless sensor network. In order to monitor human physiological signals continuously, wearable reflectance pulse oximetry is built in wrist form that could used to obtain oxygen saturation of a patient unobtrusively. The wearable reflectance pulse oximetry consists of reflectance probe, SpO2 module and wireless sensor node. The reflectance probe is designed to collaborate with LEDs with wavelengths of 660nm and 940nm. SpO2 module is designed to manage almost of all of the internal processing (e.g. analog signal processing, signal collection and calibration, etc). It is based on a low-power 8 bit ATmega128L microcontroller that operates in 3V. Low-power processing SpO2 module was integrated on wireless sensor node for wireless communication. The oxygen saturation collected from wireless sensor node was transmitted wirelessly to a base-station for storage and display purposes. This paper focused on the successful integration of all these components into wearable reflectance pulse oximetry and performed its ability to measure patient’oxygen saturation for ubiquitous healthcare system

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