IoT 컴퓨팅의 실용적 결함 관리 기법

박춘우 ( Chun Woo Park ),김수동 ( Soo Dong Kim ) 한국인터넷정보학회 2015 인터넷정보학회논문지 Vol.16 No.5

최근 주목 받고 있는 정보기술분야 중 하나인 IoT(Internet of Things) 환경은 센서와 액츄에이터로 구성된 다양한 디바이스들이 네트워크에 연결되어 정보를 수집 및 공유하면서 상호작용이 가능한 컴퓨팅 환경이다. 하드웨어, 네트워크 기술의 발전으로 인한 IoT 디바이스의 보편화와 IoT 서비스에 대한 사회적인 요구의 증가에 따라, IoT 애플리케이션의 사용성이 증대될 것으로 기대하고 있다. 그러나 IoT 환경에서는 전통적인 소프트웨어 연구에서 다루어지지 않았던 다양한 종류의 결함이 발생할 수 있어, 신뢰성 있는 IoT 애플리케이션을 개발하는 데에 어려움이 있다. 이러한 문제를 해결하기 위하여, 본 논문에서는 IoT 결함을 분류하고, 분류된 결함들의 원인과 증상을 분석한다. 그리고 분석 결과를 기반으로 서비스 실행 시에 발생 할 수 있는 결함을 관리하기 위한 프로세스와 그 프로세스 안에서 수행되는 기법을 제안한다. 본 연구에서 제안하는 프로세스와 관리 기법을 활용하여 결함 관리가 필요한 IoT 애플리케이션의 개발 비용을 줄일 수 있다. Internet of Thing (IoT) computing is an environment where various devices with sensors and actuators are connect, and interact together to acquire contexts and provide useful services. With the advances of IoT technologies, its usability becomes an in important issue. However, there exist various types of faults in IoT computing which are not conventionally addressed in software research community. Providing reliable IoT services is challenging. In this paper, we present a hierarchy of IoT faults and analyze causes and symptoms of the faults. Based on the analysis, we define effective methods for managing IoT faults. We believe that our proposed framework for managing IoT faults can be utilized in reducing the development cost of IoT applications and enhancing the quality of the applications.

국가기관 항공기 운용조직의 통합운영 논리와 대안 연구

박춘우(Park, Choonwoo) 한국조직학회 2015 한국조직학회보 Vol.12 No.3

개인 의료진단을 위한 웨어러블과 장착형 IoT 디바이스의 효과적 활용 기법

박춘우(Chun Woo Park),배석현(Seok Hyun Bae),안구환(Ku Hwan An),라현정(Hyun Jung La),김수동(Soo Dong Kim) 한국정보과학회 2015 한국정보과학회 학술발표논문집 Vol.2015 No.6

정부의 위기 대응에 관한 연구: 위기 커뮤니케이션 대응 전략을 중심으로

박춘우 ( Choon-woo Park ) 국방대학교 안보문제연구소 2015 국방연구 Vol.58 No.4

본 연구의 목적은 "구제역 사건"과 "천안함 폭침사건"을 사례로 정부가 위기상황에서 어떤 커뮤니케이션 전략을 사용하였고, 국민의 인식에는 어떤 영향을 미쳤는지 살펴봄으로써 효과적인 위기대응을 위한 위기 커뮤니케이션 전략을 제시하는 것이다. 정부의 이미지 회복 전략을 비교 분석한 결과, ``구제역 사건``에서 정부는 방어적인 전략과 수용적인 전략을 동시에 사용하여 조직 피해를 최소한으로 줄이고자 하였음에 비해 ``천안함 폭침사건``에서 국방부는 방어적인 전략 위주로 위기유형과 책임수준에 따른위기 커뮤니케이션 전략을 상황에 맞게 사용할 필요가 있었다. 언론에 반영된 정부의 전략은 높은 책임성과 초기대응 실패로 인해 위기단계별로 전개 및 절정단계에 다수 반영되었으며, 언론사별로 정부가 의도한 것과는 다른 프레임의 관점을 알 수 있었다. 전체적으로 정부의 이미지 회복 전략의 특징은 초기 대응의 부실로 책임성과 위기상황에 적합하며 체계적인 위기커뮤니케이션 전략을 사용하지 못한 것으로 이해할 수 있다. 또한, 이러한 정부의 이미지 회복 전략은 언론 보도와 여론 변화를 고려할 때, 수용자인 국민의 위기 인식과 정부신뢰에도 영향을 주었음을 확인할 수 있었다. This brief proposes new communication strategies for handling crisis events effectively. When investigating current communication strategies used in government organization`` crisis situations, we must examine the effects on people``s awareness and trust in the government. For the purpose of this study, our focus is centered on foot-and-mouth disease and ROKN frigate Cheonan sinking incident. We analyzed the crisis communication strategies the government employed and their image restoration strategy through the information reflected in the media. As a result of confirming how the government``s image restoration strategy was reflected due to the organization``s high responsibility by national crisis and the failure of the initial response. the government``s image restoration strategy in each step was concentrically used in the development and climax steps. Therefore, the initial response also appeared to require a continuous image restoration strategy in each crisis step. The flow of the main image restoration strategy by crisis step is slightly different from the government and each newspaper. In summary, the government``s image restoration strategy appeared prominently in the two cases was not to use the organization``s accountability and the crisis communication strategy suitable for a crisis condition. Therefore, it was considered the government didn``t use systematic image restoration strategy due to the lack of the initial response. In addition, it was confirmed this government``s image restoration strategy affected the crisis awareness of the people who were affected and their trust in the government.

모바일 디바이스 역량 분석 기반 앱 설계 기법

박춘우 ( Chun Woo Park ),김문권 ( Moon Kwon Kim ),김수동 ( Soo Dong Kim ) 한국정보처리학회 2013 한국정보처리학회 학술대회논문집 Vol.20 No.1

모바일 컴퓨팅은 모바일 디바이스의 사용 증가로 인해 연구가 활발히 진행되고 있는 분야이다. 스마트폰은 대표적인 모바일 디바이스로, 많은 앱들이 오픈 마켓을 통해 활발히 유통되고 있다. 고품질의 앱을 설계하기 위해서는 모바일 디바이스의 특징에 대한 이해와 제한적인 자원에 의해 발생할수 있는 문제들에 대한 효과적인 해결책이 필요하다. 본 논문에서는 모바일 디바이스의 역량을 정량적으로 분석하고 이를 기반으로 앱 설계시 발생할 수 있는 문제들을 효과적으로 대처하기 위한 설계 지침 제시 및 이를 기반으로 한 앱 설계 기법을 제안한다.

골프클럽 브랜드 글로벌성이 지각된 브랜드품질 및 고객충성도에 미치는 영향

박춘우(Park, Choon-Woo),이종경(Lee, Jong-Kyung) 한국사회체육학회 2015 한국사회체육학회지 Vol.0 No.61

The purpose of the present study was to investigate the causal relationships between golf-club brand globalness, brand quality, and consumer loyalty and the moderating effects of consumer ethnocentrism on the relationship between brand globalness and consumer loyalty. In order to achieve the current research purposes, we collected a total of 497(99.9%) questionnaires from five golf shooting ranges located in KyongGi and Seoul areas by using a convenient sampling method. Several statistical analyses including a descriptive analysis, a confirmatory factor analysis, Cronbach’s α test, Pearson’s correlation analysis, a structural equation modeling(SEM) analysis, and a multiple group analysis were performed. The followings are the results of the current study. First, the path coefficient between brand globanless and perceived brand quality was found to be statistically significant(t=8.090, p<.001). Second, the path coefficient between brand globalness and customer loyalty was found to be statistically significant(=t 3.277, p<.001). Third, the path coefficient between perceived brand quality and consumer loyalty was found to be statistically significant(t=5.105, p<.001). Lastly, the moderating effect of golf consumer ethnocentrism on the relationship between brand globalness and customer loyalty was found to be statistically significant(Δχ²=6.280>χ².05(1)=3.840). Results of this study is expected to provide golf-club brand managers with managerial implications on strategic brand marketing approach to global brand image enhancement with consumer ethnocentrism.

계녀가류 규방가사의 교훈전달방식과 교육적 활용방안 연구

박춘우(Park Chun-woo) 우리말글학회 2009 우리말 글 Vol.45 No.-

A study on the methods of Instruction Communication of A Kind of Teaching Women Gyubang-Gasa and on the ways for teaching writing through reading A kind of Teaching Women Gyubang-Gasa. The methods of Instruction Communication used in the Gyubang-Gasa are like presenting deeds of normative characters and negative ones respectively, and deeds contrast between two kinds of characters. In the content system of Revision Korean Curriculum in 2007 a category of 'Tread' had been set up, unifying articulately a category of 'Knowledge' and another of 'Acceptance and Production'. This study has been searching for the ways of unifying writing, with putting the accent on reading A kind of Teaching Women Gyubang-Gasa. We can expand writing teaching and life writing by writing activity making the most of Gyubang-Gasa text. Gyubang-Gasa is a model case of autonomous, active literature communication in that ordinary women who are not specialized in writing had worked voluntarily. The writing education utilizing A kind of Teaching Women Gyubang-Gasa can stimulate the contemporaries who fall into confusion of their values to have criticism consciousness about real problems such as home, neighbor, society, etc., and can be used widely as one way to make the people think of the problems for themselves so that they have a access to solve them.

고전시가에 나타난 꽃의 심상(心象) 유형

박춘우 ( Chun Woo Park ) 한국고시가문학회 2009 한국시가문화연구 Vol.0 No.24

This thesis is studies about types of the Image of Flowers showed in Korean Classic Poems and about opposing system working in them. The Image of Flowers in relation to cognition is divided into one as material existence, and one as a projection of humans consciousness according to whether an object is perceived as the existence itself or as a thing humans` consciousness is applied for. Flowers of a fetish as material existence are mainly working as the connection of god and humans in the context of religious relations. Flowers as an appreciation for enjoyment, on the other hand, are connected with a poet or poetic ego, who enjoys flowers` image itself and represents it with his own interest. As a projection of humans consciousness, a flower with a masculine image connotes male`s figure or emblem, or his consciousness. On the other hand, that with a feminine one connotes female`s figure or emblem, or her consciousness as well. After studying four types of opposition system in the images of flowers in Korean classic poems, we conclude that flowers as a material existence are opposed to ones as projection of humans consciousness. Flowers presented as a fetish and a masculine image is opposed to those as an appreciation for enjoyment and a feminine image.

PWM 전류형인버터를 이용한 계통연계형 태양광 발전시스템

박춘우(Choon-Woo Park),성낙규(Nark-Kuy Sung),이승환(Seung-Hwan Lee),강승욱(Seung-Wook Kang),이훈구(Hoon-Goo Lee),한경희(Kyung-Hee Han) 전력전자학회 1996 전력전자학술대회 논문집 Vol.1996 No.-

In this paper, we composed utility interactive photovoltaic generation system of CUITent source inverter, and controlled that low harmonic and high power factor are hold py supposing control and compensation method which is concerned with synchronous signal distortion and modulation delay.<br/> And we put parallel resonant circuit into dc link, so, magnitude of direct reactance was reduce by restraining direct cuitent pulsation which had accumulation of pulsating power in alternating electrolytic condenser. Also we controlled that modulation factor is operated around maximum output of solar cell.

볼 엔드밀 가공시 채터가 가공면에 미치는 영향

박춘우(Park Chun Woo),홍남표(Hong Nam Pyo),김병희(Kim Byeong Hee) 강원대학교 산업기술연구소 2001 産業技術硏究 Vol.21 No.1

This paper deals with the study on the culling characteristics in ball-end milling process. First of all, the effects of the geometric cutting conditions such as the spindle speed, feedrates on the surface integrity and machining stability were evaluated by the analytical and the experimental approaches. A large amount of experimental sets are performed to evaluate the effects of chatter phenomenon on the machined surface. The optical microscope and the surface roughness measuring machine are used to measure the surface integrity and roughness of the machined surfaces