• 한국군사과학기술학회지
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• 제5권2호
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• pp.72-82
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• 2002

This paper presents the design technology of a Graphic Generator which drives the embedded aircraft display equipments such as HUD(Head-Up Display) and MFD (Multi-Function Display) those provide pilot with the most important mission information. The main issue of this design is how we can implement the real-time embedded graphic generator using a general purpose processor as a substitute for the obsolete the production of specific graphic processor in the military market. So we proposed two kinds of method that one is a software solution so called graphic kernel system, interpreting the display file, controlling the graphic system and pre-processing graphic primitives, the other is a hardware solution so called graphic engine, interpreting passed commands through the graphic kernel system, post-processing the looping calculation taking much of time as implemented by software. We have tested and verified the functionalities and the required performance of Graphic Generator.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집A
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• pp.734-739
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• 2001

In this paper, we develop a six-axes machining center tool(MCT) and CAD/CAM system. The MCT consists of two mechanical parts, i.e., a X-Y-Z Cartesian coordinate typed MCT and a parallel-typed tilting table. Kinematics and singularity are accomplished to design the parallel-typed tilting table, and CAD/CAM system is developed for the six-axes MCT, which requires the commands of position as well as orientation for machining of complex shape. The CAD/CAM system has a tool path generator, a NC code generator and a graphic simulator. This paper designs the parallel-typed tilting table to meet the desired specification and presents the results of tool path, NC code and graphic simulation.

• 한국항공우주학회지
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• 제31권9호
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• pp.94-102
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• 2003

본 논문에서는 군용 항공기의 주 시현 장비인 HUD 와 MFD에 그려지는 여러 가지 심볼 형상들을 off-line에서 효율적으로 생성/편집하여 ASC 그래픽 보드 내부 플래시 메모리의 일정영역에 직접 다운로드 함으로써, ASC의 그래픽 처리 속도 증가 및 데이터 통신 부하를 감소시킨 심볼 생성기용 S/W인 SYMBOL-GEN의 개발내용과 실제 적용 결과를 기술하였다. 개발된 SYMBOL-GEN S/W는 PC상에서 C++ 언어와 MS Visual Studio 6.0 개발환경을 사용하여 구현되었다. 또한 최근의 객체 지향형 프로그래밍 개발기법을 도입하여 수정과 확장성 등이 용이하도록 설계되었다.

• 한국통신학회논문지
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• 제16권12호
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• pp.1313-1323
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• 1991

본 논문에서는 객체 지향 프로그래밍을 이용한CAM(Content Addressable Memory)의 자동생성의 runplot 과정을 위한 생성기, 그래픽 디스플레이 툴(tool)을 제시하였다. 레이아웃 생성이나 그래픽 메뉴, 마우스 드라이버, 데이터 구조들을 기본 클래스들로 구성하여 기존의 절차적 언어보다 명료하고도 수정이 용이한 프로그램을 구성하였음을 보였다. CAM의 구조와 기본 회로 구성을 보였고 이들을 생성 하기위한 기본 클래스에 대해 설명하였다. 설계 규칙이나 공정에 독립적인 생성기 설계를 위해 기본 셀들을 사용자의 입력에 따라 변하도록 구성할 수 있는 매개변수화된 셀의 기법을 보였고 피치 매칭 기법을 이용한 배치·배선으로 레이아웃을 수행하였다. 끝으로 생성된 CIF의 디스플레이와 전체 run plot 과정을 위한 그래픽 메뉴의 구성을 설명하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 하계종합학술대회 논문집 V
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• pp.2609-2612
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• 2003

This paper describes a 64 channel signal generator/analyzer module that is useful for verification and testing of digital circuits. It can perform logic analyzer function and signal generator function at the same time. The 64 Channel module is implemented with single FPGA chip for miniaturization, and an USB interface is used to increase portability of the module. Multiple modules can be used in parallel for the verification of large scale circuits. Moreover, since the module is implemented as a PC based system, one can configure convenient GUI(Graphic User Interface) environment.

• 한국정밀공학회지
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• 제13권4호
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• pp.24-33
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• 1996

PLCs are vital components of modern automation systems, which have penetrated into almost every industry. Many industries have a demand for facilitation of PLC programming. In this study, a programning system for sequential control is developed on a personal computer. This programming system consists of two main parts, a GRAFCET editor and a GRAFCET compiler. The GRAFCET editor enables us to model an actual sequential process by a GRAFCET diagram. This GRAFCET editor is developed by the menu-driven method based on specific menus and graphic symbols. The GRAFCET compiler consists of two parts, a GRAFCET parser and a code generator. The possible errors in a drawn GRAFCET diagram are first checked by the GRAFCET parser which generates finally an intermediate code from a verified CRAFCET diagram. Then the intermediate code is converted into a control code of an actual sequential controller by the code generator. To show the usefulness of this programming system, this system is applied to a pneumatically controlled handling robot. For this robot, a Z-80 microprocessor is used as the actual sequential controller.

• 전자공학회논문지B
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• 제31B권5호
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• pp.1-11
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• 1994

In computer graphics since objects atre constructed by lines and curves, the high-speed curve generator is indispensible for computer aided design and simulatation. Since the functions of graphic generation can be represented as a series of matrix operations, in this paper, two kind of the high-speed Bezier curve generator that uses matrix equation and a recursive relation for Bezier polynomials are designed. And B-spline curve generator is designed using interdependence of B-spline blending functions. As the result of the comparison of designed curve generator and reference [5], [6] in the operation time and number of operators, the curve generator with 1-dimensional systolic array processor for matrix vector operation that uses matrix equation for Bezier curve is more effective.

• 한국통신학회논문지
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• 제15권10호
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• pp.857-867
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• 1990

CAM은 RAM이나 PLA 처럼 규칙적인 구조를 갖고 있으므로 CAM 자동설계 프로그램을 제작하기 용이하다. 본 프로그램은 CIF 형태로 그 결과가 출력되고 수정 작업이나 결과를 화면에 보기 위해 IBM/PC 상에서 디스플레이 프로그램을 개발하였다. CIF 파저는 YACC와 LEX로 제작하였고, 플롯팅을 위해서는 ROLAND XY 플롯터를 사용하였다. 위의 과정을 하나의 메뉴안에서 선택에 따라 수행하도록 Full-Down 메뉴를 사용하여 종합하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1993년도 한국자동제어학술회의논문집(국내학술편); Seoul National University, Seoul; 20-22 Oct. 1993
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• pp.815-820
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• 1993

Robotic technology has been grown up conspicuously by its versatility. KAERI has been involved in one of facets of robot industry to keep abreast of rapid evolving technologies In robotic field and has launched long-term R&D plan to assure the stable nuclear energy. In this paper, the latest development status of teleoperated robot system has been presented with emphasis the configuration of overall control system with 3 dimensional graphic system that provides operators with tele-presence situation. This robot system under development, composed of master-slave arm with controller and graphic simulator, is operated by a master manipulator to enable an installation and removal operation of nozzle dam system for steam generator. Evaluation and analysis has been carried out to get optimal parameters of robot system.

• Journal of Multimedia Information System
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• 제8권4호
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• pp.285-294
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• 2021

The development process of domestic CG (Computer Graphics) needs to be studied by classifying the technical part and the design part. This paper analyzes how early domestic broadcast equipment evolved and focused on what went through the development process. Domestic broadcasting companies have introduced and used overseas equipment and have begun to develop their own technology. The development process of the early domestic production technology of broadcasting stations was classified into Character Generator, On-line Real-Time Graphic and Sport Coder. It was found that the orientation of broadcasting technology was conclusively focused on visualization, with socio-cultural factors acting along with the evolution of hardware and software. This research is meaningful in reorganizing the history of the development process of domestic CG technology in the early days through previous research (primary verification), newspaper articles and news coverage (secondary verification). This paper looks at what is missing by regaining the past of CG, and argues that with the advent of new technologies today, we must develop through appropriate division of roles and collaboration between engineers and designers.