• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.1049-1052
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• 2009

This paper develop a intelligent personal emergency call system using the wireless sensor network to resolve that a portable problem of established emergency call system. The proposed system is composed of a transmitter nodes for individuals, routing nodes for multihop communications, and a server part. The transmitters for patients are monitored for both low battery and operational status. The transmitters provide location of the person activating an emergency call using RSSI. The efficacy of the proposed system is verified by means of experiments. Experimental results are presented that show the effectiveness.

• Journal of Korea Multimedia Society
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• v.11 no.7
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• pp.1016-1024
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• 2008

In this paper, we designed and implemented the ACE(ACtive Emergency call service system) system for emergency call service actively. ACE system has two physical components; E-Device(Emergency Mobile Device) and E-Server(Emergency Server). The role of E-Device is the mobile device in order to call emergency by using mild handi-capped, the elderly and children who are able to communicate theirs intention to another. E-Server is the server for management E-devices with realtime monitering. E-Device will be developed to the portable size for easily mild handi-capped, the elderly and children. When they need the service of emergency call, the button of E-device can be used and the call signal is transmitted to the emergency office and the guardian through Internet and CDMA. E-server should be developed the integrated control system for management of E-Devices basically. And it also supported to realtime monitoring of E-devices with respect to high quality of emergency call service for rise the efficiency.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.1294-1297
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• 2021

본 작품은 안전 사각지대에 놓여있는 노약자들을 대상으로 낙상을 예방하고, 응급 상황 시 긴급 신고가 가능한 안전바와 응급호출 시스템을 제공한다. 본 작품이 요구하는 각종 기능은 안전바 내부에 센서를 부착하고 그에 맞는 소프트웨어를 추가하여 구현하였다. 또한 어플리케이션을 통해 보호자와 연결되어, 응급상황 시 보호자가 노약자가 처한 상황을 빠르게 인지하여 대처할 수 있도록 하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1000-1003
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• 2015

기존 병원들의 간호사 호출 시스템은 유선 방식으로 입원실과 화장실 벽면에 부착하여 도움이 필요로 할 경우 간호사를 호출한다. 하지만 유선 방식은 장치가 부착된 입원실과 화장실에서만 간호사를 호출 할 수 있다는 큰 단점을 가지고 있다. 만일 병원 내부의 간호사 호출 시스템이 없는 장소에서 환자에게 응급상황이 발생할 경우 환자는 도움을 받지 못하여 2차 사고로 이어질 수 있다. 반면 무선 방식은 환자들에게 개별적으로 장치를 지급하는 것과 잦은 분실에 의해 비용 문제가 발생한다. 본 논문에서는 이러한 문제를 해결하기 위해 스마트폰과 Beacon으로 장소의 제약 없이 보다 신속하고 정확하게 환자의 위치를 담당 간호사에게 전송하는 방식을 이용한다. 그리고 이를 기반으로 하여 기존의 간호사 호출 시스템에서 발생되는 환자 위치 사각지대를 해결한 새로운 Multipurpose Patient Support Systems(MPSS)기술을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.1406-1409
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• 2010

본 연구에서는 호출기를 착용한 환자가 낙상/전도 사고를 당했을 때, 자동으로 구조요청 하는 시스템을 개발하고자 한다. 자동 호출기에는 사고의 감지, 사고발생 위치의 추적, 관제센터로의 통신 등의 기능이 필요하다. 이를 위해 3축 가속도센서를 탑재하고, 낙상판단 알고리즘을 구현하여, MCU에 포팅하고, RF 송수신기와 알람을 집적하였다. 자동 호출기와 관제소와의 통신방법으로는 400MHz 대역의 RF 송수신기를 채택하였다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.12
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• pp.2836-2843
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• 2015

Due to metallicity of materials, a vessel has a limitation to adopt RF-based wireless communication technologies for the inner communication means. Visible Light Communication(VLC) can be a sound alternative to dissolve such a limitation. Using a visual light as a transmission medium, VLC is free from radio interferences and restriction of radio usages which are typically related to RF-based wireless communications. In addition, VLC can not only require the facility cost relatively low because of being possibly converged with existing LED illumination, but also be harmless to the human body. This paper proposes an indoor location-based emergency call service system solution for ships using the VLC technology that supports 256Kbps data rate and 5m transmission distance. This paper presents real implementation and testing results of the solution which verifies the propriety of the proposal.

• 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.

• Journal of the Korean Institute of Intelligent Systems
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• v.25 no.5
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• pp.419-424
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• 2015

The entry of an aging society require a safety of senior citizens against emergency. However, a home and a residence of senior citizens should not consider a characteristic of safety and the unfortunate accidents could happen in the house or the residence. Especially if the elders live alone then they have a help function using a call button in a bathroom or a closed area. But, a sliding or an overbalance in a bathroom or a closed area of a home may happen suddenly how can require a help in real time. That is a very serious accident to senior citizens. In this paper, we developed the context-aware system using the various sensors for collecting the data which is an activities of daily living of elders and we designed the recognition method using case-based reasoning for detecting the anomaly and the emergency context in the bathroom or the closed area in house. After that, if the anomaly or the emergency are detected then it call to a family or a relative or an administration in real-time.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.880-883
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• 2007

우리나라의 고령화 단계는 매우 심각한 수준으로 이미 초고령화 사회에 진입하기 바로 전 단계이다. 한다. 그러나 사회복지 관련 정부예산 및 부족한 전문인력 등의 여러 가지 문제점으로 인하여 지속적으로 늘어가는 독거노인들에 대한 효율적인 서비스를 제공하지 못하고 있는 것이 국내의 현실이다. 이에 본 논문에서는 웹캠과 유비쿼터스 센서들을 이용하여 독거노인들의 위험 감지 및 알람 시스템을 제안한다. 이 시스템은 독거노인들의 일상생활을 웹캠과 유비쿼터스 센서들을 이용하여, 24시간 모니터링을 하면서 불규칙한 이상 행동 패턴이 발생하게 되면, 해당 행동 패턴을 추출하고, 보호자 및 관계기관과 응급의료구조시스템을 호출하는 등의 서비스를 제공함으로써, 독거 노인들에 대한 세심하고 밀접한 관리 및 폭 넓은 서비스를 기대할 수 있게 될 것이다.

• Convergence Security Journal
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• v.7 no.1
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• pp.35-43
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• 2007

The object of this paper is to design a biomedical signal measure systems based on sensor networks for the patient, integrated with computing technology. Using a combination of zigbee RF, embedded hardware and software technologies, as it allows the healthcare center to receive the information on emergency situations and the ordinary state of the patients individually or simultaneously, the healthcare center can copy with quickly a state of emergency and assist the normal life of the patient. In order to meet the low power and other requirements for the proposed system, we introduce a zigbee based RP which is the most suitable solution for improving the performance of our beeper system.