• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.130.2-130
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• 2001

In this paper, we suggest an algorithm for the automatic measurement of concentricity and roundness using image processing technique. From the experimental results, we could find that the required measurement accuracy specification is sufficiently satisfied using our proposed method.

• Journal of Engineering Education Research
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• v.20 no.4
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• pp.61-66
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• 2017

Automatic flow control system composed by hardware and software was designed and fabricated to be used as teaching tool of feedback control theory in university experimental class. This system includes hardwares like data acquisition board, flow measuring device, transmitters, and the pneumatic valve, and software like LabView program for the monitoring and control of flow rates. The system was designed as the student can see the control effect of not only set point but also disturbance changes. Also the LabView program was composed for the calculation of controller parameters of both Ziegler-Nichols and Cohen-Coon tuning. The students can apply both tuning constants and compare the control performances. This system will provide the easy way for the students to understand the function and specification of control hardwares, and to raise the programing ability of control software.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.9
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• pp.2227-2232
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• 2013

To obtain the system requirement specification in the beginning of the precision guidance system development, the effectiveness and reliability analysis for the system are necessary. The main purpose of this research is to obtain the system requirement specification for the high speed unmanned underwater vehicles by carrying out the effectiveness analysis using the modeling and simulation scheme. The effectiveness is position error for target position. Reaching accuracy is expected to be affected by the navigation sensor parameter. Assume that the navigation sensors that is consist of inertial navigation system(INS) and doppler velocity log(DVL) is the parameter. To analyze the effectiveness of each parameter, Monte-Carlo numerical simulation is performed in this research. The effectiveness analysis is carried out using circular error probability(CEP) and variance analyze scheme. Considering the cost function, the specification of the navigation sensor is provided. The cost function is consist of the INS and DVL specification and the price of those sensors.

• 제어로봇시스템학회:학술대회논문집
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• 1997.10a
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• pp.418-421
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• 1997

A design method of robust controller for the longitudinal autopilot of BTT missile is considered. The difficulties are a set of linearized dynamic models which corresponds to different operating points has a wide range of parameters and it has even Non-Minimum Phase(NMP) zeros. In this paper, such a family of models is expressed by an interval plant. Then a robust control design method using QFT is represented. A simulation result shows that the proposed controller satisfies the given specification well.

• Journal of Institute of Control, Robotics and Systems
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• v.7 no.10
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• pp.859-866
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• 2001

Recently, fault injection techniques are used for evaluation of the fault coverage properties of safety-critical systems. This paper describes the TCN Fault Injector(TFI) implemented for TCN safety analysis. The implemented TFI injects network level faults to Intelligent MVB Controller that is designed for the Korean High Speed Train. With TFI, it can be verified whether the MVB controller meets TCN specification and its safety requirements.

• Proceedings of the KIPE Conference
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• 2001.10a
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• pp.600-605
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• 2001

This paper deals with dynamic performance of the Cheju - Haenam HVDC system. The purpose of the study is to verify the control characteristics of the HVDC system and to analyze the dynamic performances by simulation study. Because the HVDC system consists of analogue and digital controller, the simulation is achieved with specification model incorporating nonlinear function. The dynamic performance simulations are performed by PSCAD/EMTDC

• Electronics and Telecommunications Trends
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• v.11 no.3 s.41
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• pp.1-14
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• 1996

디지털 저장 미디어 명령과 제어를 위한 프로토콜인 DSM-CC (Digital Storage Media Command & Control)에 대한 표준화가 ISO/IEC MPEG에서 한창 진행되고 있다. 본 고에서는 DSM-CC에서 정하고 있는 시스템의 기준 모델을 각 인터페이스별로 살펴보고, 현재 표준제정중인 프로토콜을 1995년 11월에 만들어진 DIS(Draft International Specification)를 중심으로 상세히 소개하고자 하였다.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.404-410
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• 2002

In this study, we have analyzed the optimum control of wheel for coach car in maintenance process to grasp the problem relating to this coach's wheel exchanged. So, these problems brought about decrement maintenance cost. This study were deliberated to solve problems concerning maintenance process of wheel exchanged and wheel specification in rolling stock workshops of KNR. Here, we describe some results.

• Proceedings of the KIEE Conference
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• 2003.07d
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• pp.2283-2285
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• 2003

This paper present design and specification of the EPS(Electronic Power Subsystem) Control Unit of the KOMPSAT2 spacecraft. we designe ECU with the 80386 processor and compare KOMPSAT-2's performance with KOMPSAT-1's.

• Journal of Fashion Business
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• v.7 no.5
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• pp.32-44
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• 2003

In apparel industry, the worksheet or product specification document has the function of products design. Drawing up worksheet exactly is important to quality control of apparel products. Every company needs to manage the product data of design-centric to establish TQM environment. In order to control the quality data of design-centric, an apparel worksheet system was developed by using the function of product data management system.