• Journal of Digital Contents Society
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• v.19 no.4
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• pp.631-637
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• 2018

In order to read newspaper articles, the use of paper newspapers is decreasing and smartphone are increasingly used. As a result, the number of news apps continues to increase. Many of the news apps in the Android Play Store fall into two categories. The first is an app that is developed by a specific newspaper company and distributes only the articles of the newspaper company. The rest is an app that shows a list of newspapers and shows the homepage when a newspaper is selected. In this paper, we have designed and implemented a Real-Time News app for collecting articles from many newspapers and providing them in real time. Newspapers provide up-to-date articles with RSS feeds. The server program stores them in the DB, and transmits the articles requested in the Real-Time News app in real time. In order to see the latest news, it is possible to collect the articles of each newspaper without visiting the websites of the various newspapers, and it is possible to reduce the mobile data usage used to access each website.

• Journal of the Society of Naval Architects of Korea
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• v.31 no.2
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• pp.22-28
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• 1994

A data acquisition and processing system. using an IBM PC, an AD converter, and a printer, has been developed to monitor rapidly and significantly varying signals. The sister takes live signals and computes and displays the trend of the moving averages of the signals in real time. The system has been applied to monitor the shaft horsepower and revolution and the speed of ships for their speed trial. The reliable interpretation of the measured data using moving average can eliminate unnecessary arguments between the owner and yard on the performance of the newly built ships. Other applications of the system-inspection of engine hunting, providing data for ship maneuvering analysis, vibration data analysis, extending to the ship performance monitoring system-are also demonstrated and discussed.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.2
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• pp.187.2-187.2
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• 2012

다목적실용위성 3호는 2012년 5월 발사되어, 위성 기능점검을 위한 시험을 성공적으로 완료하였다. 위성발사이후 태양전지판 전개를 포함하여 장착된 모든 전장품(Unit)을 순차적으로 모니터링하면서 관련 명령어를 송신하고, 이후 송신된 명령어에 대한 수행여부를 모니터링하며 전장품의 정상 동작상태를 판단하게 된다. 위성상태의 모니터링은 상태 디스플레이 페이지(AND, AlphaNumeric Display), 각종 이벤트 디스플레이 및 위성에서 수신한 덤프 데이터 디스플레이 등을 통해서 수행한다. 이러한 위성의 상태정보는 지상의 엔지니어가 신속하면서 정확한 판단을 수행할 수 있도록 정확한 정보를 가독성있게 디스플레이해야할 필요가 있다. 또한, 위성교신 이후에는 위성에서 저장된 상태정보를 수신하여 비실시간 위성상태 데이터를 분석하는 작업을 수행한다. 이때, 엔지니어가 필요로 하는 상태정보 아이템을 자신이 원하는 형태로 추출할 수 있어야 한다. 이러한 필수 기능들은 시스템의 안정성을 기반으로 동작하여야 한다. 이와 같은 시스템이 운영될 수 있도록 초기운영 이전에 안정화 및 검증 작업을 수행하였으며, 초기운영 기간에도 정상운영 단계에서 임무관제국의 운영요원이 용이하게 위성의 상태를 모니터링할 수 있도록 위성상태정보에 대한 데이터베이스와 오류 감지 능력을 포함하는 위성상태 표출 기능을 최적화 하는 작업을 수행하였다. 임무관제국에서 개발된 위성상태모니터링 시스템을 통하여 안정적으로 다목적실용위성 3호의 초기운영에 대한 실시간 모니터링 및 비실시간 데이터 분석 작업을 수행하였다. 또한, 초기운영기간동안의 최적화 작업을 통하여 정상운영기간 동안 운영요원이 용이하게 오류 감지를 수행할 수 있도록 시스템을 지속적으로 개선하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10c
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• pp.631-633
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• 2004

본 논문에서는 유비쿼터스 홈 네트워킹 환경에서 사용자의 위치 이동을 실시간 추적하고 가정 내 주거 활동의 편의를 제공하는 정보가전기기들을 제어할 수 있는 능동형 홈 서비스 시스템을 제안한다. 본 시스템은 다계층의 분산시스템 환경으로 구성된다. 즉, 물리 센서와 정보가전기기 등이 존재하는 물리층과 유/무선 지원 인터넷/인트라넷 통신 플랫폼을 포함하는 시스템층, 그리고 물리적 장치들로부터 시스템층을 통해 들어오는 정보를 처리하는 응용층으로 구성되며 실 생활 공간 및 시간을 응용 시뮬레이션 환경으로 반영시킨다. 능동형 홈 서비스 시스템의 개발 목적은 실버아파트에서 독거노인의 위치기반 건강관리 정보 서비스 및 아파트 내 정보가전기기들의 맞춤형 제어를 제공하기 위함이다. 이와 같은 시스템을 구축하기 위해서는 홈 네트워크 내에서 사용자의 이동 위치를 파악하는 실시간 위치추적 기술과 정보가전기기들의 동작을 실시간 제어하기 위한 기술이 요구된다. 제안한 시스템에서는 UC at Irine의 DREAM Lab.에서 개발한 TMO(Time-triggered Message -triggered Objecl) 스킴을 적용하여 각 물리 센서와 정보가전기기들을 응용의 구성요소로 개발했다. 이를 통해 가정 내에 이동하는 TMO로 매핑된 이동객체를 추적하고 또한 홍 네트워크로 연결된 정보가전기기들을 정보가전 TMO 동작객체로 매핑하여 이들 사이의 능동적인 상호동작을 통해 맞춤형 서비스 및 실시간 제어가 가능하도록 했다. 마지막으로, 실시간 위치추적 및 정보가전제어 응용 시뮬레이션을 통해 능동형 홈 서비스 시스템을 구성하는 개별 동작객체들의 기능성과 수행성을 검증했다.황에 대하여 소개한다.이스는 실험정보가 저장된 데이터베이스, 분석결과가 저장된 데이터베이스, 그리고 유전자 정보 탐색을 위한 데이터베이스로 분류해 데이터를 효율적으로 관리할 수 있게 하였다. 본 시스템은 LiNUX를 운영체계로 하고 데이터베이스는 MYSQL로 하여 JSP, Perl. 통계처리 언어인 R로 구현되었다.프트웨어를 사용하지 않고도 국내의 순수 솔루션인 리눅스 기반의 LonWare 3.0 다중 바인딩 기능을 통해 저 비용으로 홈 네트워크 구성 관리 서버 시스템 개발에 대한 비용을 줄일 수 있다. 기대된다.e 함량이 대체로 높게 나타났다. 점미가 수가용성분에서 goucose대비 용출함량이 고르게 나타나는 경향을 보였고 흑미는 알칼리가용분에서 glucose가 상당량(0.68%) 포함되고 있음을 보여주었고 arabinose(0.68%), xylose(0.05%)도 다른 종류에 비해서 다량 함유한 것으로 나타났다. 흑미는 총식이섬유 함량이 높고 pectic substances, hemicellulose, uronic acid 함량이 높아서 콜레스테롤 저하 등의 효과가 기대되며 고섬유식품으로서 조리 특성 연구가 필요한 것으로 사료된다.리하였다. 얻어진 소견(所見)은 다음과 같았다. 1. 모년령(母年齡), 임신회수(姙娠回數), 임신기간(姙娠其間), 출산시체중등(出産時體重等)의 제요인(諸要因)은 주산기사망(周産基死亡)에 대(對)하여 통계적(統計的)으로 유의(有意)한 영향을 미치고 있어 $25{\sim}29$세(歲)의 연령군에서, 2번째 임신과 2번째의 출산에서 그리고 만삭의 임신 기간에, 출산시체중(出産時體重) $3.50{\

• The Journal of Society for e-Business Studies
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• v.13 no.2
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• pp.101-115
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• 2008

Recently in the human society, the crime using small arms has increased. Also, many accidents happen because of incomplete management of chemicals and radiation. Accordingly, it is necessary to manage dangerous objects by tracing the position of dangerous objects and rapidly providing the correct information for them. This paper presents a web-based system for real-time monitoring of dangerous objects using RFID in order to overcome the limitations and problems of current dangerous objects management techniques. In this paper, we define the architecture for web-based dangerous objects monitoring system and the scheme for storing information of a dangerous object in the RFID tag. We also implement the web-based monitoring system and present the execution result of the system. The proposed real-time monitoring system is composed of the dangerous objects monitoring server which manages information of dangerous objects and controls them, the dangerous objects monitoring middleware which is mediator between dangerous objects and the server, the RFID reader which reads information of dangerous objects from RFID tags attached to the objects and the database which stores information, status and position of dangerous object. The proposed system manages diverse dangerous objects such as small arms, radiation and harmful chemicals based on the position of them using RFID, so the user can check dangerous objects when they are checked in and checked out and the user can acquire the real-time position information of them through the system. Furthermore, the user can visually monitor dangerous objects through web browser from any where and at any time because the system is web-based system and it provides graphical user interface.

• Journal of Korea Multimedia Society
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• v.6 no.5
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• pp.909-920
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• 2003

Nowadays, IT for CRM has been growing and developed rapidly. Typical techniques are statistical analysis tools, on-line multidimensional analytical processing (OLAP) tools, and data mining algorithms (such neural networks, decision trees, and association rules). Among customer data, web log data is very important and to use these data efficiently, applying OLAP technology to analyze multi-dimensionally. To make OLAP cube, we have to precalculate multidimensional summary results in order to get fast response. But as the number of dimensions and sparse cells increases, data explosion occurs seriously and the performance of OLAP decreases. In this paper, we presented why the web log data sparsity occurs and then what kinds of sparsity patterns generate in the two and t.he three dimensions for OLAP. Based on this research, we set up the multidimensional data models and query models for benchmark with each sparsity patterns. Finally, we evaluated the performance of three OLAP systems (MS SQL 2000 Analysis Service, Oracle Express and C-MOLAP).

• Journal of the Institute of Convergence Signal Processing
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• v.22 no.4
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• pp.199-205
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• 2021

The distributing board in directly installed on the ground or the bottom surface of the building, and when vibrations such as earthquakes or external shocks occur, the possibility of damage or malfunction of electric components such as internal power devices, wiring, and protection relays increases. Recently, the need for a seismic type distributing board is increasing, and research and development of a distributing board having a vibration damping function and product launch are being conducted. In this paper, an IoT-based data collection device system capable of measuring vibration and environmental data of distributing board was designed and implemented. When vibration occurred on the distributing board, data was stored and visualized in the MySQL DB through Node-RED for monitoring and data storage using the MQTT protocol for reliable messaging transmission. The test was conducted by attaching the IoT device of the distributing board, and data was collected in real-time and monitored through Node-RED.

• Journal of the Korea Society of Computer and Information
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• v.14 no.9
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• pp.115-126
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• 2009

It is an important matter to manage data gathered from equipment in the manufacturing environment. However, systematic management about these data is sparsely deployed in the practical fields. This paper proposes a middleware monitoring system that efficiently supports acquisition of data from the equipment, efficiently compensates the lost data and flexibly maintains extensibility of the system. Through the result system of this paper, the data gathered from the equipment are easily stored into the database and the system status is able to be monitored in real-time. Furthermore, because the data are stored in the XML format, they are utilized in other systems in straightforward manner, which enhances the interoperability of the system. Especially, it enables ease interface to SAP, implements light-weight system by a simplified business logic and strengthen the extensibility and maintenance ability.

• The Transactions of the Korea Information Processing Society
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• v.6 no.4
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• pp.877-890
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• 1999

In this paper, a multimedia mail including video, sound, graphic data has been proposed as the next generation mail of the text based mail. In order to develop the multimedia mail, the most outstanding problem is the fact that the multimedia data are too huge to send them to the receiving end directly. The fact of big data may cause many problems in both transferring and storing the data of the multimedia mail. Our main idea is to separate between a control program for the multimedia presentation and multimedia data. Since the size of a control program is as small as a plain text mail, it has no problem to send it attached to the internet mail to the receiver directly. Instead, the big multimedia data themselves may remain on the sender's computer or be sent to a designated server so that the data may be transferred to the receiver only when the receiver activates the play of the multimedia mail. In this scheme, our research focus is paced on the buffer management and the thread scheduling for the real time play of the multimedia mail on internet. Another problem is to provide an easy way of editing a multimedia presentation for an ordinary people having no programming knowledge. For the purposed, VIP(Visual Interface Player) has been used and the results or multimedia mail implemented on LAN has been described.

• Journal of Internet Computing and Services
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• v.12 no.2
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• pp.37-46
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• 2011

The importance of data service with mobile is becoming more and more significant with the development of wireless network. However, due to the several type of mobile devices and contents, there is a problem that mobile contents should be edited according to the features of the mobile devices and the service providers. Fortunately, there is some solutions that convert mobile contents automatically according to mobile operator. Nevertheless, it has some issues that the response time of content service is delayed when converting mobile contents in real-time. In this paper, we propose an image cache replacement algorithm for minizing the volume of the real-time image transformation. Also, using both of the pre-conversion method and the real-time conversion method to improve storage space and response time.