• The KIPS Transactions:PartC
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• v.16C no.3
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• pp.285-298
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• 2009

According to the development of ubiquitous technologies, sensor networks is used in various area. In particular, medical field is one of the significant application areas using sensor networks, and recently it has come to be more important according to standardization of the body sensor networks technology. There are special characteristics of their own for medical sensor networks, which are different from the one of sensor networks for general application or environment. In this paper, we propose a hierarchical medical sensor networks structure considering own properties of medical applications, and also introduce transmission mechanism based on hierarchical structure. Our mechanism uses the priority and threshold value for medical sensor nodes considering patient's needs and health condition. Through this way Cluster head can transmit emergency data to the Base station rapidly. We also present the new key establishment mechanism based on key management mechanism which is proposed by L. Eschenauer and V. Gligor for our proposed structure and transmission mechanism. We use key provisioning for emergency nodes that have high priority based on patients' health condition. This mechanism guarantees the emergency nodes to establish the key and transmit the urgent message to the new cluster head more rapidly through preparing key establishment with key provisioning. We analyze the efficiency of our mechanism through comparing the amount of traffic and energy consumption with analysis and simulation with QualNet simulator. We also implemented our key management mechanism on TmoteSKY sensor board using TinyOS 2.0 and through this experiments we proved that the new mechanism could be actually utilized in network design.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.3 no.4
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• pp.28-34
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• 2010

In this paper, we proposes a emergency medical information system for predicting emergency situation by using the body's vital signs. Main research of existing emergency system has focused on body sensor networks. The problem of these studies have a delay of the emergency first aid since occurring of an emergency situation send a message of emergency situation to user. In the serious situation, patients of these problem can lead to death. To solve this problem, it need to the prediction of emergency situation for doing quickly the First Aid with identify signs of a pre-emergency situations until an emergency occurs. In this paper, the sensor network technology, the security technology, the internet information retrieval techniques, data mining technology, and medical information are studied for the convergence of medical information systems of the prediction of emergency situations.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.414-417
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• 2012

Recently, there will be many changes that revised emergency medical service with prescribe specialist doctor emergency medical center duty. if emergency patients come emergency medical center, in the existing system, emergency patients receive treatment in order emergency room doctor and 1-2 resident and 3-4 resident and specialist doctor. in improved system, emergency patients receive treatment to emergency room doctor and duty specialist doctor. as a result, the procedure was. simplify. but appling such a system, there should be placed duty specialist doctor about all departments in hospital. So, all hospitals be difficult to place duty specialist doctor about all departments in hospital. In this paper, to use mobile device, there design integrated emergency center management system for revision of the emergency medical service to use emergency medical center service near the user's and specialist doctor service in hospital and the hospital's information service and Emergency room usage service.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1055-1058
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• 2011

본 논문은 IT분야의 다양한 융합 기술 분야 중에서 언제 어디서나 사용자의 건강상태를 실시간으로 확인 할 수 있는 u-Health 시스템(Ubiquitous Health System)을 구현하였다. 현재 서비스되고 있는 u-Health 시스템은 초기 단계로 사용자의 상태를 확인하는 센서 기기에 의존하여 센서로부터 측정된 데이터를 가족 및 의료기관 등이 직접 분석하여 대처 하는 방법을 사용하고 있다. 그러나 기존에 개발된 u-Health 시스템은 센서 기기에 대한 오동작과 응급상황 발생 시 정확하고 신속한 대처를 할 수 없다는 단점을 가지고 있다. 따라서 본 논문에서는 u-Health 시스템의 단점을 보완하고자 기존 u-Health 시스템에 질환판별 알고리즘을 적용하여 사용자의 상태를 진단하고 이상 징후나 응급상황을 판단 할 수 있도록 하여 신뢰성을 높인다. 또한 질환판별 결과가 응급상황으로 판정될 시 가족 및 의료기관에 실시간으로 문자 메시지를 전송하여 알림 역할을 하고, 스마트폰과 웹페이지를 이용하여 실시간으로 사용자의 상태를 확인할 수 있도록 하여 신속성을 높이는데 목적이 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.1071-1074
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• 2008

본 논문에서는 센서 네트워크를 이용해서 환자 모니터링 시스템(PVMS : Patient Vital Sign Monitoring System)을 구현하였다. 최근 의료 서비스에 유비쿼터스 컴퓨팅 기술을 적용한 사례들이 늘고 있다. 기존 사례에서는 센서 전지 수명, 이동 통신비, 응급상황 대처 등 개선할 부분이 존재한다. 본 연구에서는 이런 점들을 해결하기 위해 환자의 체온 및 맥박 생체신호를 측정하기 위해 소형센서를 사용하였다. 또한 생체신호 전달을 위해 초저전력 무선통신 노드를 사용하여 언제 어디서나 환자 모니터링이 가능하고 의료진에게 응급상황을 신속하게 전달할 수 있는 웹기반 시스템을 개발하였다. 본 연구의 결과는 병동환자뿐만 아니라 활력증후를 상시로 모니터해야하는 원거리 환자를 위한 의료시스템 구축에도 활용될 수 있을 것이다.

• Journal of Internet Computing and Services
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• v.22 no.1
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• pp.99-107
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• 2021

With the recent establishment of a ubiquitous-based medical and healthcare environment, the medical information system for obtaining situation information from various sensors is increasing. In the medical information system environment based on context-awareness, the patient situation can be determined as normal or emergency using situational information. In addition, medical staff can easily access patient information after simple user authentication using ID and Password through applications on smart devices. However, these services of authentication and patient information access are staff-oriented systems and do not fully consider the ubiquitous-based healthcare information system environment. In this paper, we present a authentication service model based context-awareness system for providing situational information-driven authentication services to users who access medical information, and implemented proposed system. The authentication service model based context-awareness system is a service that recognizes patient situations through sensors and the authentication and authorization of medical staff proceed differently according to patient situations. It was implemented using wearables, biometric data measurement modules, camera sensors, etc. to configure various situational information measurement environments. If the patient situation was emergency situation, the medical information server sent an emergency message to the smart device of the medical staff, and the medical staff that received the emergency message tried to authenticate using the application of the smart device to access the patient information. Once all authentication was completed, medical staff will be given access to high-level medical information and can even checked patient medical information that could not be seen under normal situation. The authentication service model based context-awareness system not only fully considered the ubiquitous medical information system environment, but also enhanced patient-centered systematic security and access transparency.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.195-197
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• 2012

고령화 사회 문제의 해결을 위하여 저비용의 효율적인 문제해결을 위한 솔루션으로서 IT를 중심으로 많은 유비쿼터스 프로젝트가 진행되고 있다. 본 연구에서는 고령자를 위한 응급구난 시스템을 위한 단말시스템을 구현하였다. 생체데이터 수집을 위한 손목시계형 센서노드와, 의료센터와의 통신을 위한 단말기 및 스마트폰 어플리케이션을 개발하였으며, 이를 이용하여 생체데이터의 실시간 모니터링과 응급 상황 인지를 통해 의료관리 및 응급구난 서비스를 수행할 수 있다.

• Journal of IKEEE
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• v.10 no.1 s.18
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• pp.55-61
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• 2006

In modern society, development of medical technology has extended the human life span. However, it has also caused some side-effects. Mostly old people who live alone are not available the medical service quickly when they are in emergency situations. Moreover heart related diseases as well are rapidly increasing with aging. This study proposes the emergency medical alarm system. This system measures the physiological signals such as ECG(electrocardiogram), temperature, and motion data, analyzes those data automatically, and sends the urgent message to the Emergency Medical Center and to their family. There are two main parts in the system. In the first part, physiological data acquisition part, the troublesome addition and deletion of body signals on existing proposed systems have been supplemented, which led to the modulized production by means of ECG sensor module, temperature sensor module, acceleration sensor module. The other part is mobile unit, which includes signal processing and transmission functions. And bluetooth allows two parts to communicate with each other. Data that are processed in the mobile unit are stored in the PC database through the WLAN using TCP/IP protocol.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.1246-1249
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• 2008

우리 나라는 고령화 사회로 접어들었고 그에 이어 초 고령화 사회가 예상되는 가운데, 실버 세대를 위한 체계적이고 실질적인 의료 환경이 요구 되고 있다. 독거노인과 거동이 불편한 노인들을 위하여 USN을 활용한 노인 건강관리 시스템(U-SilverCare)의 필요성이 급증하고 있다. 본 논문은 가속도 센서(Accelerometer Sensor), 혈중 산소포화도 센서 (POximeter Sensor), 심장박동센서(EKG Sensor)를 이용하여 실생활에서 일어날 수 있는 상황을 4가지로 구성, 실버 세대를 위한 U-SilverCare 응급상황 통보 시스템 시나리오를 구현하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.1421-1424
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• 2005

본 논문은 통신 기술과 의료 센서 기술을 접목하여 일상생활에서 병원을 찾아가지 않고도 환자가 심전도, 호흡, 혈압 등을 측정 관리 할 수 있도록 한 헬스케어 시스템을 소개한다. 본 시스템을 통하여 환자 몸의 센서 데이터와 병원안의 시스템 사이에 체계적이 컴퓨팅 환경을 구축 할 수 있고, 더불어 환자가 자신의 상태의 효율적으로 관리할 수 있을 뿐 아니라 원격지의 의료진들이 환자의 상태를 모니터링 하고 응급상황 발생 시 그에 알맞은 최적의 의료 서비스의 제공이 가능해진다. 더불어, 웹을 통하여 진찰 및 치료를 제공 할 수 있도록 하여 인터넷이 가능한 곳이면 언제 어디서나 최적의 의료 서비스를 제공하고, 받을 수 있도록 하였다.