• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.187-188
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• 2018

현재 안심 귀가 서비스는 주로 여성, 자녀, 택시를 대상으로 하지만 단체를 위한 귀가 서비스는 존재하지 않는다. 현재 서비스되고 있는 안심 귀가 어플들은 1:1이며 이 경우 인원수만큼 연락을 해야 하는 문제가 있다. 본 논문에서는 이동하기 전 그룹을 설정하여 사람들의 귀가 여부, 집까지 소요시간, 이동 수단 정보를 알 수 있고 목적지에 도착하지 않았을 때 그룹원들에게 알림을 줌으로써 범죄의 가능성을 줄이고 안전하게 귀가하는 서비스를 제안하고자 한다.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.176-183
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• 2021

Digital medical technology is very effective and at the same time faces the challenge of protecting privacy. However, for contact tracking and exposure notification apps in COVID-19 environment, there is always a trade-off between privacy measures and the effectiveness of the app's use. Today, many countries have developed and used contact tracking and exposure notification apps in various forms to prevent the spread of COVID-19, but the suspicion of digital surveillance (digital panopticon) is unavoidable. Therefore, this study aims to identify the factors of personal information infringement and dissatisfaction through text mining analysis by extracting user reviews of "Self-Quarantine Safety Protection" in Korea. As a result of the text mining analysis, we derived four groups, 'Address recognition error', 'Exit warning error', 'Access error', and 'App. program error'. Since 'Address recognition error' and 'Exit warning error' can give the app users a strong perception that they are keeping under surveillanc by the app, transparent management of personal information protection and consent procedures related to personal information collection are required. In addition, if the other two groups are not corrected immediately due to an error in an app function or a program bug, the complaints of users can be maximized and a protest against the monitor can be raised.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06d
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• pp.64-66
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• 2006

본 논문에서는 실내 거주자의 위치를 기반으로 분산객체그룹 프레임워크의 구성요소인 모바일 프락시(Mobile Proxy)를 이용하여 상황정보 지원 시스템 구축에 대해 기술하였다. 본 시스템은 가정 내 거주자의 이동을 고려하여 건강상태 및 상황정보를 제공하는 헬스케어 상황정보 서비스를 수행한다. 이를 위해 분산객체그룹 프레임워크의 그룹관리 서비스는 가정 내 위치 탐색 및 추적 센서와 서비스 수행객체 및 다양한 출력 장치들을 거실이나 침실과 같은 분할된 영역으로 그룹화하고, 모바일 프락시는 서비스를 요청하는 이동 사용자의 위치를 기반으로 헬스케어 서비스 수행의 연속성을 지원한다. 그리고 상황정보에 따라 헬스케어 맞춤형 정보 서비스가 지원되도록 했다. 상황정보 지원 시스템이 제공하는 서비스는 이동성을 고려한 멀티미디어 서비스와 시간 및 위치에 따라 처방 주의 정보 및 스케줄 알림 서비스로 구현했으며, 상황정보 지원 헬스케어 서비스의 수행 결과를 원격 데스크 탑과 상황정보 서비스 인터페이스를 통해 확인했다.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.372-376
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• 2006

본 논문에서는 홈 내에서 헬스케어 상황정보 서비스를 제공하기 위한 모바일 프락시에 대해 기술한다. 모바일 프락시는 헬스케어 홈 서비스의 목적에 따라 분산자원의 통합 및 맞춤형 관리모델인 분산객체그룹 프레임워크를 기반으로 한다. 모바일 프락시의 주요 기능은 이동성을 지원 및 멀티미디어 스트림 동기화 그리고 그룹통신 지원한다. 특히, 클라이언트의 가용환경에 따라 수행객체에 대한 이동성을 제공한다. 이를 기반으로 헬스케어 상황정보 서비스를 제공하기 위해 사용되는 상황정보는 거주자의 위치, 홈 내에 설치된 센서/기기로부터 수집된 위치, 건강 그리고 쾌적환경 정보를 포함한다. 또한 헬스케어 상황정보 서비스를 위한 응용객체, 자원들의 그룹관리 지원 DOGF를 기반으로 이동성 지원 컴포넌트인 모바일프락시는 거주자 위치이동에 따라 적합한 헬스케어 상황정보 서비스를 제공한다. 모바일프락시를 이용한 헬스케어 상황정보 서비스는 헬스케어 지원 음악치료, 원격상담 서비스와 처방 주의 및 스케줄 알림서비스를 구현했다. 끝으로 제안한 환경에서 거주자의 위치, 시간 및 상황인식에 따라 구현하여 수행한 헬스케어 상황정보 서비스 결과를 보였다.

• The KIPS Transactions:PartD
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• v.15D no.3
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• pp.411-420
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• 2008

This paper implemented the u-Healthcare Context Information System (HCIS) supporting ubiquitous healthcare by using location, health and titrating environment information collected from sensors/devices equipped in home for healthcare home service. The HCIS is based on the Distributed Object Group Framework (DOGF), a management model which can customize distributed resources, and manages various context information, applications and devices as a group in healthcare home environment, as one more logical units. Also, this system provides continuous healthcare multimedia service considering a resident's location using Mobile Proxy, and the healthcare context information through Context Provider to a resident in home. For verifying execution of our system, we implemented the seamless multimedia service based on resident's location and the prescription/advice and schedule notification/alarm service as healthcare applications in home. And we showed the executing results of healthcare home service by using service device existed in the residential space on which the resident is located according to the healthcare scenario.

• Smart Media Journal
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• v.10 no.1
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• pp.70-78
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• 2021

The auditory information is used for urgent notification or warning in vehicle because it is not restricted by the direction compared to the visual. However, since the hearing impaired drivers cannot recognize sound signal, various methods of visualizing the auditory information have been attempted to replace it. When visualizing auditory information, only important information should be selected and provided to prevent cognitive overload concentrated on the vision. For this purpose, analysis of the type of auditory information in vehicle should be given in advance. In this study, the types of auditory information in vehicle were analyzed based on the user experience of hearing impaired drivers. Through the observation of the driving behavior of hearing impaired drivers, 33 auditory informations experienced in vehicle were collected. The collected auditory informations were classified into 12 groups through open card sorting by an expert group, and the types of auditory information in vehicle consisting of four levels were presented through a relative comparison of importance between groups. The presented type of auditory information in vehicle can be used as a guideline for selecting important information when the auditory information is converted into visual or tactile. This study is meaningful in that the user experience analysis was conducted by observing actual driving in daily life of hearing impaired drivers.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.14 no.3
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• pp.38-42
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• 2000

Plasma polymerized thin films were manufactured inter-electrode coupled plasma polymerization apparatus. The deposition rate reached its maximum between 40[W] and 100[W]. In the ESCA analysis, peaks revealing -CH2, -CH, -C- were present at 285.4 and 285.5[eV] respectively. The C=O peak at 532.8[eV] and the C-O peak at 533.8[eV], which were grouped with an unignorable amount of oxygen were conformed. In ESR analysis, the curve revealing strong amplification was in saturation, which was affected by weak power. This is considered as a -CH-Ch=Ch- structure containing the Allyl group. The relative permittivity of the plasma polymerized thin films was about 3.5 at a frequency of 100[Hz]∼200[kHz]. The dissipation factor showed allow value of 0.008.

• Journal of Digital Contents Society
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• v.13 no.3
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• pp.401-412
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• 2012

Communication through smartphones is creating a new paradigm of mobile communication beyond the restrictions of mobility and space. The mobile instant messengers of the smartphone, which began on the desktop environment, are providing various communication features, including multimedia contents, texts, and voice. Kindergartens and nurseries are using Websites, phones, SMS, printed materials, handwritten notifications, etc. to communicate with the parents. IsPlus was developed to facilitate the communication between the parents and the teachers, including exchanges of pictures and videos, chatting, and attendance management using smartphones. This is meaningful in that it is an early smartphone mobile messenger for educational institutions for infants and preschoolers. This study presented a new approach to the development of a mobile messenger for a specific group of users by analyzing the user environment, communication types, application planning process and interface design development using storytelling.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.01a
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• pp.127-128
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• 2018

본 프로젝트에서는 IoT를 활용한 스마트한 풋살 대관 예약 시스템이다. 최근 건강 및 취미에 관심이 많아지면서 하나의 국면으로 풋살에 대한 관심이 많아지고 있다. 이러한 관심은 관련 블로그 등과 같은 그룹 활동으로 많은 정보를 공유하고 있다. 하지만 풋살장 예약, 팀매칭, 용병에 구하기 등과 풋살장 관리에도 어려움이 있다. 이러한 문제점들을 해결하기 위해 본 프로젝트는 웹과 앱을 활용한 커뮤니티 제공, 풋살장 관리, 팀매칭, 용병 등을 실시간으로 공유하고 활용할 수 있도록 하였다. 팀매칭 및 용병은 실시간으로 상대팀과 채팅 통해 조율할 수 있고 용병게시판을 이용하여 용병을 구할 수 있다. 앱에서는 상대팀이 예약시간의 지각, 불참석을 하면 도착알림을 오게 해주고 풋살장에 도착하여 구장문을 열거나 닫고, 구장 조명을 키거나 끄거나, 구장 실시간 영상, 구장 실시간 이용현황 등을 볼 수 있는 기능들을 제공하며, IoT를 활용한 스마트하게 풋살장 관리 및 운영, 활용할 수 있는 시스템이다.

• The Journal of the Convergence on Culture Technology
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• v.10 no.4
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• pp.687-692
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• 2024

The energy crisis is emerging as a serious problem around the world. In the case of Korea, there is great interest in energy efficiency research related to industrial complexes, which use more than 53% of total energy and account for more than 45% of greenhouse gas emissions in Korea. One of the studies is a study on saving energy through sharing facilities between factories using the same utility in an industrial complex called a virtual energy network plant and through transactions between energy producing and demand factories. In such energy-saving research, data collection is very important because there are various uses for data, such as analysis and prediction. However, existing systems had several shortcomings in reliably collecting time series data. In this study, we propose an intelligent IIoT platform to improve it. The intelligent IIoT platform includes a preprocessing system to identify abnormal data and process it in a timely manner, classifies abnormal and missing data, and presents interpolation techniques to maintain stable time series data. Additionally, time series data collection is streamlined through database optimization. This paper contributes to increasing data usability in the industrial environment through stable data collection and rapid problem response, and contributes to reducing the burden of data collection and optimizing monitoring load by introducing a variety of chatbot notification systems.