• 한국기계연구소 소보
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• 통권20호
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• pp.33-39
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• 1990

In the existing robot programming methods, off-line method because important role of programming because of improvement of hardware and softeare of PC. The purpose of this study is to develop practical robot programming system for polishing task using PC. In the first place, we have investigated the existing robot programming systems, and derived the requirement of this programming system from the existing systems. And we have decied the structure of this system. After that, we have developed this system. Using Windows software, this programming system has man/machine interface function. Therefore users can use easily and quickly.

• 한국멀티미디어학회:학술대회논문집
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• 한국멀티미디어학회 2002년도 춘계학술발표논문집(상)
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• pp.299-302
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• 2002

컴퓨터를 이용한 독순 연구는 Man Machine Interface, 지적부호화에 있어서의 송신측 기술, 청각 장애인의 독순 훈련 시스템 등 다방면에서 그 응용이 기대된다. 본 논문은, 움직임 정보는 입술의 에지영역에 집중하고 있음에 주목하여, 입술 에지영역의 Optical Flow 추정값을 독순정보로 이용하는 방법을 제안한다. 휘도값을 갖지 않는 에지에, 선형 가상 휘도값를 정해주어 Optical Flow를 추정하는 VGM을 도입해 특징 파라미터를 계산하고, 마할라노비스 평방거리(Mahalanobis's square distance)에 기초한 최대우도판별함수를 이용하여 단모음을 분석하는 알고리즘을 제안한다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1996년도 춘계학술발표회논문집(1)
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• pp.374-379
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• 1996

경보 처리 시스템 (Alarm Processing System)은 발전소의 이상 상태를 검출하여 운전원에게 알려 적절한 조치를 취하게 함으로써 발전소의 상태를 안전하게 유지하도록 하는 운전지원시스템이다. 본 논문은 이러한 목적을 보다 효과적으로 달성하기 위하여 경보 처리 시스템을 경보 생성과 경보 분류, 경보 표시의 3 단계로 설계하였으며, 이를 기반으로 능동 데이터베이스 (Active Database)의 능동 기능을 이용한 개선된 경보 처리 시스템 (Advanced Active Alarm Processing System)을 개발하였다. AAAPS는 데이터 입력의 변경에 대하여 모듈화된 경보 처리 프로그램을 능동적으로 수행시키며 생성된 경보는 윈도우를 이용한 개선된 MMI (Man Machine Interface)로 운전원에게 제공한다.

• 한국안전학회지
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• 제22권2호
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• pp.59-66
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• 2007

As the need of handling heavy materials increases, various cranes are used in industries. However, the effectiveness of crane also entails industrial accidents such as falling, constriction etc. In fact, the number of fatal accidents caused by crane is still high in Korea. To find out the causes of the accidents in terms of human error, we developed a man-machine system model that consists of two axes; human information processing and crane life cycle. In the human information processing dimension, we simplified it as five functions; sensing and perception, decision making and memory, response etc. In the crane life cycle dimension, we divided it into nine phases; design, production, operation etc. For the 152 fatal accident records during 1999-2006 years, we classified them into 45 cells made by two axes. Then we identified the preceding causes of the classified crane accident based on performance shaping factors. As the results of statistical analysis, the overall trend of crane fatal accidents was described. For the cause analysis, wrong decision making in work plan phase shows the highest frequency. Next, the poor information input in crane operation followed in accident frequency. In ergonomics view, the problems of interface design in displays and controls made 11.8% of fatal accidents. Following the analysis, several ergonomic design guidelines to prevent crane accidents were suggested.

• 제어로봇시스템학회논문지
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• 제9권12호
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• pp.1042-1047
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• 2003

The goal of this research is to implement a PC-based remote control system of ion implanter using Visual Basic programming. Presently, skilled process engineers are required to regularly setup and adjust implanter parameters. Any reduction in the number of production hours devoted to ion beam implanter setup or recalibration after a species change would represent substantial improvements in both manpower and equipment utilization. An optical communication system for the remote control and telemetry in the operation of the 50kev potential was designed and constructed. This system enables continuous and safe operation of the ion implanter and can be the basis for the automation. The isolation characteristics of optical fiber were 10kV/cm, and performance tests of the system under the intense noise environment during the implanter operations showed satisfactory results. This system is designed to completely replace the existing human-machine interface with many new functions. This paper describes the important components of the system including system architecture and software development. It is expected that this system can be used for the communication and control purpose in the high noise environments such as the operation of the MeV energy implanter or other high power, high noise systems.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.664-667
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• 2009

There is strong demand to create wearable PC systems that can support the user outdoors. When we are outdoors, our movement makes it impossible to use traditional input devices such as keyboards and mice. We propose a hand gesture interface based on image processing to operate wearable PCs. The semi-transparent PC screen is displayed on the head mount display (HMD), and the user makes hand gestures to select icons on the screen. The user's hand is extracted from the images captured by a color camera mounted above the HMD. Since skin color can vary widely due to outdoor lighting effects, a key problem is accurately discrimination the hand from the background. The proposed method does not assume any fixed skin color space. First, the image is divided into blocks and blocks with similar average color are linked. Contiguous regions are then subjected to hand recognition. Blocks on the edges of the hand region are subdivided for more accurate finger discrimination. A change in hand shape is recognized as hand movement. Our current input interface associates a hand grasp with a mouse click. Tests on a prototype system confirm that the proposed method recognizes hand gestures accurately at high speed. We intend to develop a wider range of recognizable gestures.

• 한국정보전자통신기술학회논문지
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• 제11권2호
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• pp.161-168
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• 2018

본 논문은 곡물의 수확후 이력관리를 위하여 미곡종합처리장(RPC, Rice processing complex)에서 곡물의 반입, 건조, 저장 및 가공공정에서의 변화하는 중량 및 함수율 정보를 실시간으로 측정하고 모니터링이 가능한 IT기반의 이력관리시스템을 개발하였다. 곡물의 반입, 건조, 저장 및 가공 등 수확후 처리공정에서 반입 및 배출과정에서 중량 및 함수율 정보를 실시간으로 수집하고 이를 기반으로 수율 및 감모와 같은 품질정보를 DB sever에 저장하였다. 이 때의 Lot No를 생성하여 품질 및 이력정보를 연계하여 이력관리가 가능한 시스템을 구축할 수 있도록 설계하였다. 또한, MMI(Man Machine Interface)기반의 자동제어시스템과 자동수율 및 재고관리 시스템(YICS)과 TCP/IP통신을 이용하여 곡물을 대상으로 한 IT 기반의 이력관리시스템을 구축하였으며, 미곡종합처리장에서 시뮬레이션을 통해 검증을 수행하였다.

• 대한인간공학회지
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• 제23권2호
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• pp.13-24
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• 2004

Human error has brought about accidents more than 50% in system of a large size and complicated expecially in nuclear power plants(NPPs). The technology of Man Machine Interface(MMI) has been changed to the digitalized controls employing computer-based technology. According to this trend. the human factors guidelines are becoming main issue for reliable supports to digitalized information displays. However. the existing human factors guidelines is not enough for advanced information display on NPPs. The purpose of this research is to develop the reliable design and evaluation guidelines for advanced information display in main control room (MCR) of NPPs. In this study. the various general human factors guidelines concerning information display on CRT are integrated on data base management system. unified based on the integration rules. and applied in computer based procedures. The use of the integrated guidelines are expected to evaluate the existing information display on MCR in NPPs from the human factors point of view.

• Journal of Advanced Marine Engineering and Technology
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• 제31권7호
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• pp.872-880
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• 2007

The development of a Marine Engine Room Simulator system for training and research is described. Development objectives of the system are for both student training, research and development work. The system includes a distributed server/client architecture for 1 to 1, or 1 to many client simulation operation through OPC server, complete separation of visual elements from the controlling routines and the ability to work on the mathematical model independent of the controller and visual systems. A graphical user interface for the man-machine interface has been developed and the mathematical model has been updated. Various engine room operational situations can be simulated. The use of marine engine room simulator for training of sea going engineers and its competency for STCW-95 is discussed.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1993년도 춘계학술대회 논문집
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• pp.354-358
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• 1993

This paper shows the basic configuration for the system(H/W and S/W) which can interface between the PC and the slave robot. The PC(personal computer) is used for the basic MMI(Man-Machine Interface) system. The slave robot is controlled through the PC, actually the generated trajectory by using polynomials. The velocity control is carried out at the via points of the rrajectory. The heuristic method which chooses the average of the two slopes as the via velocity is used for the velocity control. From the simulation results, we can choose the better trajectory polyomial for reducing the deviation error at the starting and arriving parts.