• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.7
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• pp.1628-1634
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• 2011

With the advancement of ubiquitous computing technology, u-Healthcare (i.e. ubiquitous health care), is regarded as a key application for information society, which provides health management service at anytime in anywhere. To implement U-Healthcare system, it is essential to monitor stable biological information in daily life. In this paper, we proposed a small size, light weight, patch type real time temperature monitoring system based on wireless sensor network (WSN) technology to monitor patients' body temperature without any inconvenience of activity.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.12
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• pp.2737-2742
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• 2009

Researches of U-Healthcare have been fulfilled lively with an advanced age and change of lifestyles. Especially, medical field has focused on researches of U-Healthcare due to that reasons. The U-Healthcare service requires the foundation technologies, such as sensor aggregating, data transmitting and realtime monitoring technologies, In this study, we implemented medical sensor that applied Bluetooth technology to guarantee the patient's movement. Moreover, we also implemented a gateway which based on Google Android System in ARM 11 Embedded system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.392-394
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• 2013

최근 u-Healthcare 서비스에서 다양한 생체정보를 간편하게 측정하는 개인건강기기(PHD)와 측정된 정보를 전송하고 수집하기 위한 표준의 필요성이 제품 간의 이식성, 확장성, 상호 운영성을 보장하기 위해 크게 대두되고 있다. 개인건강기기에서 측정된 생체정보(산소포화도, 몸무게, 심전도, 혈압 등)를 ISO/IEEE 11073 기반인 Bluetooth Health Device Profile을 이용해서 스마트폰으로 실시간 모니터링 할 수 있는 시스템을 설계한다.

• Journal of Integrative Natural Science
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• v.9 no.3
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• pp.199-205
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• 2016

In this paper, we established ZIGBEE home network and combined smart-grid and u-Healthcare system. We assisted for amount of electricity management of household by interlocking home devices of wireless sensor, PLC modem, DCU and realized smart grid and u-Healthcare at the same time by verifying body heat, pulse, blood pressure change and proceeded living body signal by using SVM algorithm and variety of ZIGBEE network channel and enabled it to check real-time through IHD which is developed by user interface. In addition, we minimized the rate of energy consumption of each sensor node when living body signal is processed and realized Query Processor which is able to optimize accuracy and speed of query. We were able to check the result that is accuracy of classification 0.848 which is less accounting for average 17.9% of storage more than the real input data by using Mjoin, multiple query process and SVM algorithm.

• Annual Conference of KIPS
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• 2012.11a
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• pp.410-413
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• 2012

최근 네트워크를 이용한 온라인 원격 진료 서비스가 논의 되고 있는 시점에서 원격 진료 서비스에서도 특정 환자에게 맞는 의료 서비스 매칭 서비스에 대한 필요성이 핫 이슈로 대두되고 있다. 따라서 본 논문은 Mobile SmartPhone 환경에서 환자 맞춤형 의료 서비스 지원 시스템을 설계하고 온라인상에서 환자에게 맞는 의료 기관을 매칭하여 특정 환자에게 맞는 최적의 의료 서비스를 제공하는 시스템을 설계 하고자 한다.

• Journal of Biomedical Engineering Research
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• v.29 no.5
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• pp.337-342
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• 2008

To date, many researchers have developed a variety of biosensors to detect the biomolecular interactions. Recently, electrochemical biosensors have been attracting great interest as one of key technologies in a ubiquitous healthcare (U-healthcare) system since they are highly sensitive and feasible to miniaturize. Here we overview the current electrochemical biosensors based on strip-type, nanowire/nanotube, field effect transistor (FET), and nanogap electrode.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37 no.8C
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• pp.680-689
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• 2012

U-healthcare is maintaining of users' health without limitations from where and when they are. As it is important to guarantee compatibility between heterogeneous systems in U-healthcare, a medical information standard is compulsory. An adequate standard means that it is easy to understand and it can cover wide range of information types and various medical devices. Among them, HL7(Helath Level 7) has those traits, but HL7 is not adequate for non-text message, especially for medical waveform. JAHIS suggested an appropriate standard, that is MFER. MFER has many advantages for representation of medical waveform, but it is still not good for real-time applications. In U-healthcare, there are lots of needs for real-time application, so we need a standard that can have useful properties of MFER and HL7, and support real-time. In this article, there are two main topics. The first one is introducing MFER and HL7. Second, the new scheme(TS-MFER with HL7) is developed by modifying MFER and HL7 for real-time applications.

• The Journal of the Korean life insurance medical association
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• v.29 no.1
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• pp.24-31
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• 2010

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.111-119
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• 2010

U-Healthcare provides healthcare and medical services, such as prevention, diagnosis, treatment, and follow-up services whenever and wherever it is needed, and its ultimate goal is to improve quality of life. This study defines the figure of U-Healthcare personalized services for providing U-Healthcare personalized services and proposes a healthcare model. A diet prescription system for personalized services can draw customized calories and rates of nutrition factors and represent a personalized diet through analyzing the personal preference in foods. This system changes the personal preference by monitoring the diet selection behavior of users. Also, this system is designed to be interactively operated with some sensors and devices in various environments using Java-based OSGi middleware.

• Journal of Communications and Networks
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• v.16 no.4
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• pp.465-474
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• 2014

Wireless sensor network (WSN) is considered to be one of the most important research fields for ubiquitous healthcare (u-healthcare) applications. Healthcare systems combined with WSNs have only been introduced by several pioneering researchers. However, most researchers collect physiological data from medical nodes located at static locations and transmit them within a limited communication range between a base station and the medical nodes. In these healthcare systems, the network link can be easily broken owing to the movement of the object nodes. To overcome this issue, in this study, the fast link exchange minimum cost forwarding (FLE-MCF) routing protocol is proposed. This protocol allows real-time multi-hop communication in a healthcare system based on WSN. The protocol is designed for a multi-hop sensor network to rapidly restore the network link when it is broken. The performance of the proposed FLE-MCF protocol is compared with that of a modified minimum cost forwarding (MMCF) protocol. The FLE-MCF protocol shows a good packet delivery rate from/to a fast moving object in a WSN. The designed wearable platform utilizes an adaptive linear prediction filter to reduce the motion artifacts in the original electrocardiogram (ECG) signal. Two filter algorithms used for baseline drift removal are evaluated to check whether real-time execution is possible on our wearable platform. The experiment results shows that the ECG signal filtered by adaptive linear prediction filter recovers from the distorted ECG signal efficiently.