• Advances in aircraft and spacecraft science
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• v.10 no.6
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• pp.545-554
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• 2023

The widespread introduction of unmanned aircrafts has led to the understanding of the need to organize a common information space for manned and unmanned aircrafts, which is reflected in the Russian Unmanned aircraft system Traffic Management (RUTM) project. The present article deals with the issues of spatial information database (DB) organization, which is the core of RUTM and provides storage of various data types (spatial, aeronautical, topographical, meteorological, vector, etc.) required for flight safety management. Based on the analysis of functional capabilities and types of work which it needs to ensure, the architecture of spatial information DB, including the base of source information, base of display settings, base of vector objects, base of tile packages and also a number of special software packages was proposed. The issues of organization of these DB, types and formats of data and ways of their display are considered in detail. Based on the analysis it was concluded that the optimal construction of the spatial DB for RUTM system requires a combination of different model variants and ways of organizing data structures.

• Journal of the Korean Association of Geographic Information Studies
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• v.23 no.4
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• pp.68-82
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• 2020

Due to recent climate change, lager-scale storm and flood disasters have occurred. To prepare for this, the government is operating the national disaster management information system(NDMS), it is insufficient that unification and standardization of disaster site information data. In this study, to establish a disaster information display system, spatial DB was stored, quality standards were presented and the quality of spatial information currently provided was evaluated. As a result of evaluation, spatial information is established as different standard for each institution. So it is difficult to integrate and use. It considered that prepare a common standard to redeem this difference.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2007.05a
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• pp.75-83
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• 2007

본 논문에서는 .NET 기반의 Remoting 시스템과 Socket 통신을 이용하여 이 기종 DB Server 간의 Data 동기화를 구현하였다. 이 시스템은 Client 의 웹 브라우저를 이용 Socket 통신으로 Data를 전송하여 데이터베이스에 저장하는 방식으로 구현하였고, Data 읽기는 Remoting 기술인 중계 어플리케이션 서버의 클래스를 원격으로 실행시켜 Data를 가져오는 방식으로 구현하였다. DB 동기화는 Data를 저장할 때 중계 어플리케이션 서버와 DB 서버의 Data 관리 어플리케이션 간 비동기 통신으로 DB 서버의 Data 처리 수준을 실시간으로 감시하여 중계 어플리케이션 서버에서 선택적으로 Data를 전송하고, 이후 Data 처리 수준이 정상화기 되면 다시 Data를 전송케 함으로써 이 기종 DB 서버간의 동기화를 구현하였다. 본 논문은 1 장에 서론, 2 장에 .NET Remoting 기술과 네트워크 프로그래밍, 3 장에 이 기종 DB 서버 간 동기화 시스템 설계 및 구현, 4 장에 결론을 기술하였다.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.339-342
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• 2008

Recently the life and property damage caused by urban inundation have increased. In order to prevent the damage by inundation the researches for displaying the flooded areas through integrating SWMM and GIS have been progressed. However most of flood analysis systems only have used the GIS to display the flooded areas, and don't provide the integration disaster information to prevent the inundation. In this paper, we design a prototype for the Map Viewer based Spatial DB for the integrated urban floooded area management system. And we implement the spatial DB conversion module.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.10a
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• pp.89-92
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• 2002

As the use of Internet being generalized, ordering system can be easily achieved on the Web so that the direct sailing system is replaced the various types of Built-To-Order system. It is important to give the up-to-date information to the end-user in order to build the Built-To-Order system. Recently, the way of providing information is updating the product related information continuously. In this study, we provide the method that can be streamlined Product Data Management System which manages a creation and update for product information into the direct BTO system in order to achieve the newest information. This methodology is not only transferring the information but also processing the information in an appropriate form. So this paper is going to cover the various point of view of information processing.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.748-750
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• 2017

With the development of intelligent technologies, the Internet of Things(IoT) has been applied to various applications. A platform technology including a sensor-server-DB for easily managing data at a remote site is required. In this paper, we implemented a servo motor control system that moves by the smart phone tilt value using NodeJS and MongoDB. The system consists of Rasberry Pi, servo motor and smart phone and the servo motor sensor data is transmitted to NodeJS so that data can be stored in database.

• Journal of Korean Library and Information Science Society
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• v.45 no.3
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• pp.93-117
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• 2014

The goal of this study is to seek for the method of effective DB conversion and related system development for the integrated KORMARC Format on the basis of the case of Sogang University Library. Since the integrated KORMARC bibliographic format was established, libraries have been converting bibliographic DB according to the new format. Loyola Library of Sogang University internally proceeded DB conversion using bibliographic DB convertor, which was developed and customized with a system vendor for Sogang University Library. The internal conversion enabled to correct or supplement bibliographic data errors. Besides, it enhanced stability of conversion and shortened the project time by adopting sampling conversion method. It was effective to reduce the additional work for DB quality maintenance, so this kind of conversion is recommendable to the library that has limited manpower for manual data correction.

• Journal of the Korean Association of Geographic Information Studies
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• v.10 no.1
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• pp.183-193
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• 2007

Geotechnical Information Database Project was began by Ministry of Construction Transport at the 1999, because many people need a sharing and reusing the geotechnical report in construction process. In the beginning, target was report of national highway construction, the whole of country has been target on since the 2005. Today, the 60,581 number of geotechnical data(counted by boring number) is maintained. In this study, Geotechnical Information Distribute System(GIDS) was developed, in order to improve practical use and to be connected to National Geographic Information Center. and program to be applicable to construction was suggested. GIDS is able to search/download geotechnical report with digital map by internet. This system is consisted of geotechnical data and metadata editor, registration tool, and web system. We expect that GIDS make a effect to improve geotechnical data management and to be use in all part of construction process.

• Journal of the Korea Society of Computer and Information
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• v.19 no.12
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• pp.143-152
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• 2014

This paper introduces Database security to prevent the rapidly increasing issue of private information leakage. The Database security examined in the paper separates into DB access control area and DB encryption area which further leads the paper to analyze the factors of the two areas and suggest necessary elements for creating stable Database security. In addition, the paper examines previous DB security programs by areas and analyzes pros and cons from the tested result. The experiment indicated that while DB access control presents less degradation and reduced the need to modify the existing DBMS since the access control operates at the end point of the network, DB encryption presented strength in protecting the data from unauthorized access. On the other hand, DB access control is less useful in preventing the attack in advance which leaves the log to enable tracking afterward while DB encryption can only be operated by limited types of Database and causes degradation due to system load and shows higher percentage of failure when creating the system. This paper examines characteristics of Database security areas in order to be used as a reference for institutions or companies seeking stable Database security.

• The Journal of the Korea Contents Association
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• v.13 no.5
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• pp.9-18
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• 2013

This research attempts to investigate the way of establishing a systematic and consistent review results by utilizing DB system of broadcasting content, which has been operated by Korea Communications Standards Commission. The current problems of DB system was analyzed and compared with review system of other contents regulating organizations to seek better alternatives. The results show that related information are recorded in review DB of other organizations in detail, so that committee members can utilize DB system in making consistent and objective judgment. In addition, other contents regulating organizations open the review results to the public and enhance the accessibility, so that people can make use of the DB. It is necessary to improve review DB in a systematic and efficient way for broadcasters and contents productions to accept and consent the review results.