• Journal of the Korea Society of Computer and Information
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• v.25 no.1
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• pp.63-69
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• 2020

In this paper, we propose an indoor positioning technique using the landmark based on relative Access Point (AP) signal strengths. The absolute values of AP signals are used to conventional indoor positioning technologies, but they may be different because of the difference of the measuring device, the measuring environment, and the timing of the measurements. However, we found the fact that the flow of the AP's RSSI in certain places shows almost constant patterns. Based on theses characteristics, we identify the relative strength between the APs and store the certain places as landmarks where they show certain patterns. Once the deployment of the landmark map is complete, system calculate position of user using the IMU sensor of smartphone and calibrate it with stored landmarks. Our system shows 75.2% improvement over technology that used only sensors, and 39.6% improvement over technology that used landmarks that were selected with absolute values.

• Journal of IKEEE
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• v.24 no.3
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• pp.909-912
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• 2020

This paper introduces a customized pet care and training system based on information technology. A specific animal is recognized by nose-print recognition. Pet robot induces the animal to move to trainer device. Trainer device trains the animal by snack, play, and clicker, and it can be easily extended for specific training using add-on devices. Pet band performs vital sign monitoring, prevention of home escape, and measurement of exercise amount. By changing configuration, this system can perform various training programs such as mitigation of separation anxiety, induction to defecation place, and prohibition of tresspassing specific place. It also provides customized training by analyzing individual behavior of animal. It can exercise and play the animal when owner is out, and it can immediately notice to the owner when the animal has health trouble.

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.4
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• pp.503-508
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• 2010

Recently, the advance of mobile devices has made various services possible beyond simple communication. One of services is the predicting the future path of users and providing the most suitable location based service based on the prediction results. Almost of these prediction methods are based on previous path data. Thus, calculating similarities between current location information and the previous trajectories for path prediction is an important operation. The collected trajectory data have a huge amount of location information generally. These information needs the high computational cost for calculating similarities. For reducing computational cost, the meaningful location based trajectory model approaches are proposed. However, most of the previous researches are considering only the physical information such as stay time and the distance for extracting the meaningful locations. Thus, they will probably ignore the characteristics of users for meaningful location extraction. In this paper, we suggest a meaningful location extracting and trajectory simplification approach considering the stay time, distance, and additionally interaction information of user. The method collects the location information using GPS device and interaction information between the user and the others. Using these data, the proposed method defines the proximity of the people who are related with the user. The system extracts the meaningful locations based on the calculated proximities, stay time and distance. Using the selected meaningful locations the trajectories are simplified. For verifying the usability of the proposed method, we collect the behavioral data of smart phone users. Using these data, we measure the suitability of meaningful location extraction method, and the accuracy of prediction approach based on simplified trajectories. Following these result, we confirmed the usability of proposed method.

• Journal of the Korean association of regional geographers
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• v.14 no.4
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• pp.309-327
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• 2008

Formation of positive regional image is critically important in place marketing for regional development. This article considers Goryeong-Gun's policy agenda for regional development, analyzing its current regional image. In recent years, Goryeong-Gun has established its positive regional image of Daegaya in virtue of Daegaya Experience Festival. It should be highly evaluated. But, it has also some problems based on a certain local history or not supported by proper brand, slogan and logo to promote the image. In this point, Goryeong-Gun needs to rethink planning strategies related to Daegaya regional image. If necessary, Daegaya regional image would be expanded on the base of general value system.

• Proceedings of the Korean Society of Computer Information Conference
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• 2010.07a
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• pp.319-322
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• 2010

본 논문에서는 저가의 비용으로 구축이 가능한 USB 인터페이스용 PC 카메라를 이용한다. 사람의 침입이나 사람의 움직임을 감시할 필요가 있는 장소에 카메라를 설치하여 영상을 계속 감시한다. 감시가 필요한 장소에 설치된 각 카메라의 영상에 변화를 저장하여 기록하는데 있어서, 비교적 적은 비용이 필요하다. 또한 감시가 필요한 장소를 보다 안전하고 정확하게 감시할 수 있는 무인 침입탐지시스템에 영상처리와 영상인식 기술을 이용하여 실시간 감시시스템을 구현한다. 구현한 시스템은 웹을 기반으로 다양한 원격지의 화상 자료의 신속한 전송, 정확성의 구현, 특정 움직임의 캡처 및 선택, 검색, 자동 움직임 감지 등의 장점을 제공한다. 또한 독자적 시스템을 제공하여 다수의 시스템을 영상 입력 서버로 이용이 가능하도록 하였다. 뿐만 아니라, 서버에 C/S 형태의 시스템도 함께 제공하여, 영상인식 모듈을 탑재할 수도 있다. 덧붙여 인터넷을 통한 자료의 전송기술 및 QoS 만족을 위한 자료의 압축 및 품질 향상 기술을 적용하여 원격 출력과 원격 전송이 가능하여 저장 장치의 유지 관리 및 설치면에서 많은 경제적 이점이 있다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.30 no.2
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• pp.189-209
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• 2019

Main Path Analysis (MPA) is one of the text mining techniques that extracts the core literature that contributes knowledge transfer based on citation information in the literature. This study applied various text mining techniques to abstract of the paper related with sense-of-place, which is published at Korea and abroad from 1990 to 2018 so that could discuss in a macro perspective. The main path analysis results showed that from 1990, overseas research on sense-of-place has been carried out in the order of personal identity, public land management, environmental education and urban development-related areas. Also, by using the network analysis, this study found that sense-of-place was discussed at various levels in Korea, including urban development, culture, literature, and history. On the other hand, it has been found that there are few topic changes in international studies, and that discussions on health, identity, landscape and urban development have been going on steadily since the 1990s. This study has implications that it presents a new perspective of grasping the overall flow of relevant research.

• Journal of architectural history
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• v.26 no.1
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• pp.71-82
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• 2017

Pavilions, follies, and installations provide a place with a new experience beyond that of simple garden architecture. From this point of view, this study tried to analyze the constructs in the Glass House site, which Philip Johnson has built for 50 years. After Chapter 1 Introduction, which summarized the background of the study, Chapter 2 investigated the design background of the landscape and the types of the constructs there. It also, studying literature on pavilions, follies, and installations, defined the basic meanings of them. Chapter 3 identified the features of each construct through the case studies of it, analyzing Johnson's intentions on it. These features are such as the applications of classical follies, the quotations of architectural history, fusion with art, architectural experiments, and the monuments of personal history. In conclusion, this study, finding the site specificity as a common feature of pavilions, follies, and installations, referred to two aspects of this, which are not only physical placeness but also cultural media.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.85-88
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• 2017

보안 문제나 기타 다른 문제들로 인해 사설망을 사용하는 환경에서 서버 상태를 모니터링하는 경우, 사내의 특정 허용 IP에서만 작업을 할 수 있다. 따라서, 관리자는 시간과 장소의 제약을 크게 받을 수 밖에 없다. 이러한 문제를 해결하기 위해 본 논문에서는 공용망에서 모니터링 솔루션에 접속하여 제한된 기능을 제한된 사용자에게 제공할 수 있도록 보안이 강화된 중개 솔루션을 구현하였다. 구현 결과 제안한 시스템은 시간과 장소에 관계 없이, 모바일 인터넷을 사용할 수 있는 환경에서 언제든지 서버 상태를 체크할 수 있고, 서버 문제 발생 시, Push 알림을 통해 문제를 즉시 파악할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.144-147
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• 2017

스마트폰의 사용량 증가와 함께 일상생활에 편리함을 주는 다양한 종류의 어플리케이션이 개발되고 있다. 생활에 편리함을 주는 어플리케이션 가운데 특히 특정한 장소를 예약하는 어플리케이션의 증가가 많다. 본 논문은 병원예약을 필요로 하는 모든 연령층을 위하여 병원 예약 어플리케이션을 설계하고 이를 구현하였다. 본 논문에서 개발한 병원예약 어플리케이션은 GPS 기능을 사용하여 어플리케이션 이용자에게 장소나 시간의 제약 없이 정보를 제공하고, 주변에 있는 병원을 찾는 사용자에게 신속한 예약이 가능하도록 설계하였다. 본 어플리케이션 사용으로 병원 예약을 필요로 하는 사용자에게 다양한 정보와 편리함을 제공할 것으로 기대한다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.149-152
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• 2007

본 연구는 광범위한 공간에서(공공장소에서) 불특정 사용자를 대상으로 가능한 정보수집 방법을 제시하고, 수집된 정보의 활용 방안을 제안하기 위해 진행되었다. 연구 내용은 첫번째, 서비스 환경 변화로 인해 공공 디스플레이 서비스 개발요소 도출을 위해 연구사례 및 문헌을 통해 공공장소에서 활용 가능한 사용자 정보수집 기법을 선정하고 고찰한다. 두번째, 선정된 기법을 서비스 개발에 적용하기 위한 정보 수집시 고려해야 하는 특성 및 속성 변수를 정의하고, 이를 중심으로 공공디스플레이 서비스 개발을 위한 사용자 정보 수집 방법을 제안 하였다. 네번째 제안된 방법을 활용하여 서비스 내용과 방법(제공/조작방식).