• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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• pp.380-382
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• 2007

As the society changes more to the aging society in future, many healthcare product are developed and distributed more on the market. The digital wrist band tye blood pressure device for home use are popular already in the market. It is useful for checking blood pressure level at home and control of hypertension. Especially. It is very essential home device to check the health condition of blood circulation disease. Nowadays many product types are available. But the measurement accuracy of blood pressure is not enough compared to the mechanical type. It needs to be upgraded to assure the precise health data enough to use in the hospital. The structure, feature and output signal of capacitor type pressure sensors are analyzed. An improved design fa capacitor sensor is suggested. It shows more precise health data after use on a wrist band type health unit. They can be applied for remote u-health medical service.

• Journal of information and communication convergence engineering
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• 제4권2호
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• pp.67-70
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• 2006

A distributed healthcare monitoring system prototype for clinical and trauma patients was developed, using wireless sensor network node. The proposed system aimed to measure various vital physiological health parameters like ECG and body temperature of patients and elderly persons, and transfer his/her health status wirelessly in Ad-hoc network to remote base station which was connected to doctor's PDA/PC or to a hospital's main Server using wireless sensor node. The system also aims to save the cost of healthcare facility for patients and the operating power of the system because sensor network is deployed widely and the distance from sensor to base station was shorter than in general centralized system. The wireless data communication will follow IEEE 802.15.4 frequency communication with ad-hoc routing thus enabling every motes attached to patients, to form a wireless data network to send data to base-station, providing mobility and convenience to the users in home environment.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2007년도 춘계학술대회
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• pp.484-487
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• 2007

u-Health 관련 보건 비용의 지속적인 증가와 건강 및 사전 예방에 대한 관심이 증가함에 따라온라인을 통한 상담, 정보제공, 동영상 서비스 및 e-commerce등 건강 관련 서비스 시장 확대가 되고 있다. 국내 의료산업은 원무행정 분야에 대한 초기 정보화 단계에 있으며, 대학/종합 병원들의 IT예산은 급속히 증가하고 있으나, 중소형 병/의원/약국의 경우 IT 투자예산 확보 문제가 있다. 이를 대처하기 위해 u-Health와 Wellness를 통합 함으로서 BT, NT 및 IT 관련 기술을 활용하여 u-Fitwellness 시스템을 구축 Ubiquitous 네트워크를 통해 고객에게 건강과 의료관련 서비스, 제품, 정보를 제공하고 개인의 삶의 질을 향상시킴으로써 홈 네트워킹 기반 u-Health Total Solution을 통한 융합형 시스템 서비스를 제공하고자 한다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.785-786
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• 2006

Recently, Healthcare system has not been standardized and has been developed as an embedded system lacking interoperability. We are finally going to face such problems as having excessive load in using network caused by the uncontrolled spread of system and un-guaranteed interoperability among the heterogenous systems. We suggest the possibility that OSGi (Open Service Gateway initiative : the international standardization of service middleware) can be accepted as a solution for the above problems.

• 반도체디스플레이기술학회지
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• 제11권3호
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• pp.51-56
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• 2012

In this paper, we propose a telemedicine system based ECG data using a bio-signal meter and a smart device for treating faraway patients. This system is composed of a patch-shaped portable bio-signal meter, patient's smart device application, and doctor's PC software. Using these components, doctors and patients can do telemedicine. First, a patient measures his own ECG signal with a bio-signal meter and send the data to a doctor using a smart device application. Then, the doctor checks the ECG data, and make and send a diagnosis chart to web server. Likewise, doctors and patients can be offered a medical environment without time and space restraints. Applying this system to real medical system can improve the problem of low accessibility and efficiency and also can reduce medical expenses.

• 한국전자통신학회논문지
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• 제9권1호
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• pp.61-66
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• 2014

RFID는 유헬스의 핵심 기술로서 환자 위치 추적 관리, 의료 자산관리 등 다양한 목적으로 의료기관에 적용될 수 있다. 하지만, 정작 의료기관에서는 높은 도입 비용으로 인하여 RFID 도입이 기대와 달리 적극적이지 못한 실정이다. 도입 검토 단계에서 정확한 비용과 도입 효과를 산정하는 것은 의료기간에서의 RFID 확산에 꼭 필요하다. 본 논문에서는 의료기관에서 RFID 도입시 예상되는 비용 및 효율을 평가하기 위한 시뮬레이션 기법을 제안한다. 의료기관을 대상으로 하여 태그를 부착한 환자의 이동을 가상으로 모델링하는 기법을 제시한다. 그리고 환자의 이동에 따른 RFID 태그 인식 시뮬레이션을 통해 태그 인식 이벤트를 생성하는 방법을 제시한다.

• 대한의용생체공학회:의공학회지
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• 제28권3호
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• pp.325-331
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• 2007

Personal identification is essential for the automatic measurement of biosignal information in home healthcare systems. Personal identification is usually achieved with passive radio frequency identification (RFID), which does little more than store a unique identification number. However, passive RFID is not ideal for automatic identification. We present a user identification system based on radio signal strength indication (RSSI) using ZigBee for active RFID tags. Personal identification is achieved by finding the largest RSSI value from aggregated beacon messages that are periodically transmitted by active RFID tags carried by users. Obtaining reliable person!'.! identification without restricting the orientation requires a certain distance between the closest active RFID tag from the ZED and the second closest tag. The results show that the closest active RFID tag from the ZED and the second closest tag must be at least 70 cm apart to achieve reliable personal identification.

• 한국지능시스템학회논문지
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• 제20권1호
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• pp.146-152
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• 2010

본 논문에서는 RFID를 이용하여 사용자를 인식한 후 사용자의 생체신호(혈압, 혈당, 체지방)를 측정하여 자가진단을 할 수 있는 지능형 헬스케어 시스템을 구현하였다. 구현한 헬스케어 자가진단 지능형 시스템은 RFID리더기, 생체신호측정기(혈압계, 혈당계, 체지방측정기), 데이터베이스 서버역할을 하는 컴퓨터, 자가진단 결과를 출력하는 프린터로 구성된 키오스크형태로 이루어졌으며 데이터베이스에서 보유한 사용자 정보 및 측정된 정보 데이터를 비교분석한 후 사용자의 건강상태를 자가진단할 수 있다. 구현된 시스템은 병원에 가지 않더라도 간단히 자가진단을 할 수 있으며, 회사나 학교 등에서 응용할 수 있다.

• 디지털융복합연구
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• 제11권7호
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• pp.261-269
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• 2013

u-Health는 최근 기술이며 의료 진단과 건강관리를 위한 새로운 방법론이다. 그러나 이를 실현하려면 몇 가지 기술적 장벽들(이동성, 소형화, 배터리 수명 문제 등)을 넘어서야 한다. 본 논문에서는 u-Health 서비스에 적합한 스마트폰용 스펙트럼 측정 시스템을 개발하였다. 실험 결과 기존 솔루션에 비해 무선이면서 크기가 매우 작지만 성능 면(재현성 비교실험에서 Spectrum, Calibration Curve, Prediction)에서 거의 일치한다는 것을 확인하였다. 따라서 개발된 솔루션은 u-Health 분야에서 널리 활용되어질 것으로 기대된다.

• 센서학회지
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• 제20권2호
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• pp.118-123
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• 2011

Heart related diseases mainly caused by heavy work load and increasing stress in human daily life. Therefore, researches on mobile healthcare monitoring for daily life has been carried out. Notably, wearable healthcare monitoring system which has least restriction has been tried to provide an emergency alert of abnormal heart rate. In this study, we developed chair type unconstrained BCG measurement system which able to perform continuous heart status monitoring at the office and daily life in the unconstrained way. Furthermore, adaptive threshold is used to detect the heart rate from BCG signals. The HRV(heart rate variability) is calculated from heart rate interval. ECG signal measured using conventional method and BCG signal measured using unconstraint system are carried out simultaneously for the purpose of performance evaluation. From the comparison result, BCG signal shows a similar heart beat characteristic as ECG signal. This proves the possibility of practical implementation of unconstraint healthcare monitoring system. In addition, medical examination like valsalva maneuver is performed to observe the changes in HRV due to stress. By performing valsalva maneuver, heart is said to be placed under an artificial physical stress condition. Under this artificial physical stress condition, the time and frequency domain of HRV parameters are evaluated.