• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2002.10a
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• pp.365-369
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• 2002

This paper introduces that the machine tools's feed system optimizes by modeling for simulation and adjusting drive control parameter. The first method is frequency response of speed loop with design parameter by use of MATLAB application, in order that other axis can do equal to bandwidth. The second meted uses various sensor for analyzing machine tools's structure and adjustes jirk limitter.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.391-394
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• 2002

This paper introduces that the lathe optimize for main and sub spindle's synchronous in Opening-CNC. In view of optimal design, the mathematical modelling and the frequency domain analysis of spindle's system are performed. For the compensation of synchronous error in compounded manufacture process, the optimization method of motor drive's control parameter and the related parameter is proposed. By the experiment in prototype machines using the server/client program, the validity of the proposed method is verified.

• Journal of the Korean Society for Precision Engineering
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• v.20 no.3
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• pp.74-81
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• 2003

This paper introduces that the turning center optimizes main and sub spindle's synchronized controller in Open-CNC. In view of optimal design, the mathematical modeling and the frequency domain analysis of spindle's system are simulated. For the minimizing of synchronized error in each spindle's speed, the study of control method and the related control parameter is proposed. By the experiment in prototype machines using the server/client program, the validity of the proposed synchronous error's compensation method is verified.

• Proceedings of the Korea Society for Simulation Conference
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• 2003.11a
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• pp.153-157
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• 2003

전력연구원에서는 울진 표준형원전의 시뮬레이터를 개발하였으며, 여기에는 가상 주제어실, 발전소 현상 감시, 중대사고 등 많은 클라이언트 프로그램들이 있다. 이러한 프로그램들은 시뮬레이터와 연동되어 필요한 값을 읽고 쓰는 과정이 필요하다. 그러나 현재는 해당 시뮬레이터 환경에서 개발되지 않는 외부의 응용프로그램이 이들 시뮬레이터의 값들을 엑세스하는 방법은 제공하지 않고 있다. 본 보고서에서는 이러한 문제점을 해결하기 위해 외부 프로그램들이 시뮬레이션모델의 각종 변수들을 효과적으로 엑세스하여 값을 Read/write 할 수 있는 OPC (OLE for Process Control) Server를 개발하였다. 본 프로그램은 Rockwell의 OPC Server Toolkit인 RSI OPC/DDE Server Toolkit Library를 이용하여 개발하였으며 시뮬레이터가 실행되고 있는 컴퓨터에서 실행된다. 본 보고서에서는 OPC 일반개념, 개발한 OPC Server의 소개, OPC Server의 적용결과 등을 기술하고자 한다.

• Spatial Information Research
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• v.12 no.4 s.31
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• pp.321-328
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• 2004

The purpose of this study is to describe 3-Dimensional technique to obtain spatial information automatically using PhotoModeler Pro. PhotoModeler Pro is excellent software with the three-dimensional measurement function used by a personal computer using Windows operating system However, it is not sufficient to carry out the automatic matching work with two stereo images. This is very large neck as a 3-D measurement software. In this study, the automatic stereo matching work using the self-making program and DDE interface within PhotoModeler Pro was tried. The experiment field is the hillside and stair zone of Tateyama region, Nagasaki City. The results of automatic stereo matching work were very good with $100\%$ hitting ratio of target.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.17 no.1
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• pp.69-78
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• 1999

Recently, with a rapid industry development, the recognition of environmental pollution is being increased. And the technique of pollution-prevention is also being studied. In the past, management direction for environmental pollution was limited only to concentration reduction and technique for treatment. But ,in these day, its direction is moved to a high level study such as a management and estimation of pollution material. In this study we establish a conception about EIS(Environmental Information System) building and present its building method. And we present a method for a database building, searching, analysis and printing. Also we produced the landuse map processing LANDSAT TM image. Using DDE(Dynamic Data Exchange) between Excel and ArcView on PC platform, we are enable to write and/or update a Report - waste discharge facility approval management leader - and to recover weakness about the report management of exsiting GSIS program.

• Journal of the Korean Association of Geographic Information Studies
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• v.3 no.2
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• pp.1-10
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• 2000

The purpose of this study is to develope a parcel-based automatic simulation system of land price through the integration of urban mathematical model and GIS. The appraisal process of public land price by the local government is simple but is a great time-consuming task. Moreover, it doesn't provide any statistical analysis and spatial presentation tools. So, it is difficult for planners or administrative officials to analyze the variation of land price with spatial idea. From these, a system is developed combining two sub-systems, they are ANN(Artificial Neural Network) for the calculation of land price and GIS for visual presentation. Using Matlab application, ANN model was designed having 3-layer structure and was trained with the sample data taken from Chinju city. With the trained network, the impact of 'road', 'parks', 'height control district' and 'beauty district' on land price in 9 regions(dong) are simulated. The results of the simulation were visualized with ArcView GIS. The automatic simulation system operated through the DDE(Dynamic Data Exchange) conversation between two applications. ArcView was set as client and Matlab as server. Scripting in ArcView and customizing a window of ArcView, this system can execute the whole process of simulation by just clicking a button with mouse. As a conclusion, this system was proved to be an effective and easily controllable planning support system for the land price simulation.