• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2005년도 하계학술대회
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• pp.409-415
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• 2005

세계적으로 로봇 산업이 차세대 신성장 동력 산업으로 급부상하여 인간과 상호작용 즉 HRI 연구가 활발히 이루어지고 있는데, 최근 들어 로봇의 교육적 활용 연구가 시작되고 있다. 이에 본 연구에서는 교사 보조 로봇의 수업에서의 활용 가능성을 보기위해 사전에 만화 시나리오를 통한 적합한 교과목 후보를 정하였고, 초등학생 6학년의 기대역할을 갖는 프로토타입 로봇을 설계 개발하여 후보 교과목 수업에 활용하는 실험을 실시하였다. 이를 통해 아동이 로봇에게 기대하는 역할이 실험자의 의도와 일치하는지와 교육적 효과 제고에 기여를 하는지를 알아보고자 하였다. 그 결과, 아동은 교사 보조 로봇을 자신보다 약간 높은 나이로 인식하고, 친근하지만 자신보다 우월하여 자신을 이끌어 줄 수 있는 역할을 기대한다는 것을 알 수 있었다. 또한 교사 보조 로봇 활용이 교사와 아동의 흥미 유발에 있어 매우 효과적임을 보여, 향후 교사 보조 로봇은 ICT 활용 교육의 또 다른 매체로서의 가능성을 확인하였다.

• International journal of advanced smart convergence
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• 제9권2호
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• pp.28-37
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• 2020

We conducted a comprehensive review on the previous research on r-Learning. By reviewing 843 previous studies about r-Learning published from 2004 to 2015, this study investigated 1) the trend of research on r-Learning over time, 2) the characteristics of targeted students in r-Learning, 3) the educational activities implemented for r-Learning, and 4) the types of educational robots used for r-Learning. The study found that the research on r-Learning has rapidly and steadily increased and the types of educational activities and educational robots has been diversified. Relying on the findings of this review, this study suggests 1) ensuring growth in both the quality and the quantity of research on r-Learning, 2) broadening the target student population of r-Learning beyond the age-limited boundaries, 3) enhancing educational activities of r-Learning, and 4) recognizing the necessity for systematic and clear concepts of types of educational robots.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
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• pp.153-158
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• 2000

This paper addresses an intelligent robot control system using an off-line programming to teach a precise assembly task of electronic components in a flexible way. The investigated task consists of three job: heat caulking test, soldering on a circuit board, and checking of soldering defects on the back cover of a camera. This study investigates the remodelling of the most complicated cell in terms of the accuracy and fault rate among the twelve cells in a camera back-cover assembly line. We have attempted to enhance back-cover assembly line. We have attempted to enhance soldering quality, to add task flexibility, to reduce failure rate, and to increase product reliability. This study modifies the cell structure, and improves the soldering condition. The developed all system implements the real-time control of assembly with vision data, and realized an easier task teaching on off-line programming.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1994년도 추계학술대회 논문집
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• pp.553-558
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• 1994

In this paper, we present a new approach for the automation of deburring process. An algorithm for teaching skills of a human expert to a robot manipulator is developed. This approach makes use of TSK fuzzy model that can express a highly nonlinear functional relation with small number of rules. Burr features such as height, width, area, cutting area are extracted from image processing by use of the vision system. Cutting depth, repeative number and normal cutting force are chosen as control signals representing actions of the human expert. It is verified that our processed fuzzy model can accurately express the skills of human experts for the deburring process.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1996년도 추계학술대회 학술발표 논문집
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• pp.27-34
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• 1996

GENIE is a learning-based engine for building intelligent systems. Learning in GENIE proceeds by incrementally modeling its human or technical environment using a neural network and a genetic algorithm. The neural network is used to represent the knowledge for solving a given task and has the ability to grow its structure. The genetic algorithm provides the neural network with training examples by actively exploring the example space of the problem. Integrated into the training examples by actively exploring the example space of the problem. Integrated into the GENIE system architecture, the genetic algorithm and the neural network build a virtually self-teaching autonomous learning system. This paper describes the structure of GENIE and its learning components. The performance is demonstrated on a robot learning problem. We also discuss the lessons learned from experiments with GENIE and point out further possibilities of effectively hybridizing genetic algorithms with neural networks and other softcomputing techniques.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.42.3-42
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• 2001

A human is an expert in manipulation. We have acquired skills to perform dexterous operations based upon knowledge and experience attained over a long period of time. It is important in robotics to understand these human skills, and utilize them to bring about better robot control and operation It is hoped that the neurocontroller can be trained and organized by simply presenting human teaching data, which implicate human intention, strategy and expertise. In designing a neurocontroller, we must determine the size of neurocontroller. Improper size may not only incur difficulties in training neural nets, e.g. no convergence, but also cause instability and erratic behavior in machines. Therefore, it is necessary to determine the proper size of neurocontroller for human control transfer. In this paper, a new pruning method is developed, based on the penalty-term methods. This method makes ...

• 한국정밀공학회지
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• 제13권3호
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• pp.102-109
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• 1996

In this paper, we present a new approach for the automation of deburring process. An algorithm for teaching skills of a human expert to a robot manipulator is developed. This approach makes use of TSK fuzzy mode that can wxpress a highly nonlinear functional relation with small number of rules. Burr features such as height, width, area, grinding area are extracted from image processing by use of the vision system. Grinding depth, repetitive number and normal grinding force are chosen as control signals representing actions of the human expert. It is verified that our proposed fuzzy model can accurately express the skills of human experts for the deburring process.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제4권3호
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• pp.135-142
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• 2015

소프트웨어가 경쟁력의 핵심이 되는 소프트웨어 중심 사회로 이행되면서 프로그래밍 교육의 중요성이 새롭게 부각되고 있다. 세계적인 조기 코딩 교육 열풍도 이러한 추세를 반영하고 있으나 이를 지원하기 위한 교육 환경에서는 클라우드 컴퓨팅과 같은 새로운 컴퓨팅 환경을 효과적으로 활용함에 제약이 있는 것이 현실이다. 본 논문에서는 클라우드 환경에서 모바일 기기와 로봇을 이용하여 손쉽게 소프트웨어를 개발하고 프로그래밍 교육을 할 수 있는 클라우드 기반 지식 공유 및 제어 시스템인 클라우드보드(Cloudboard)를 제안한다. 특히 군집 로봇 시스템에서 개별 로봇의 센서 정보를 다수의 로봇이 공유하고 협업하여 공동 임무를 수행하도록 할 경우 클라우드보드 기능을 이용하여 손쉽게 프로그램을 개발하여 교육에 활용할 수 있음을 보인다. 클라우드보드의 기능은 기존의 대표적인 아키텍처 패턴을 비교 분석한 결과를 토대로 설계되었으며 실험적으로 효과와 성능을 검증한다.

• 한국기계가공학회지
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• 제12권6호
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• pp.132-141
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• 2013

Robotic Drilling Systems(RDSs) set the standard for the factory automation systems in aerospace manufacturing. With the benefits of cost effective drilling and predictive maintenance, RDSs can provide greater flexibility in the manufacturing process. The system can be easily adopted to manage very complex and time-consuming processes, such as automated fastening hole drilling processes of large aircraft sections, where it would be difficult accomplished by workers following teaching or conventional guided methods. However, in order to build an RDS based on a CAD model, the precise calibration of the Tool Center Point(TCP) must be performed in order to define the relationships between the fastening-hole target and the End Effector(EEF). Based on the kinematics principle, the robot manipulator requires a new method to correct the 3D errors between the CAD model of the reference coordinate system and the actual measurements. The system can be called as a successful system if following conditions can be met; a. seamless integration of the industrial robot controller and the IO Level communication, b. performing pre-defined drilling procedures automatically. This study focuses on implementing a new technology called iGPS into the fastening-hole-drilling process, which is a critical process in aircraft manufacturing. The proposed system exhibits better than 100-micron 3D accuracy under the predefined working space. Based on the proposed EEF fastening-hole machining process, the corresponding processes and programs are developed, and its feasibility is studied.

• 한국컴퓨터정보학회논문지
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• 제15권6호
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• pp.81-89
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• 2010

이 연구의 목적은 교육용 로봇을 활용한 STEM 통합교육이 수학 교과의 태도 수준 향상에 미치는 영향을 검증하는데 있다. 이러한 목적을 달성하기 위하여 다음과 같은 가설을 설정하였다. 교육용 로봇을 활용한 STEM 통합교육과 기존 전통적인 수학 학습에 의한 초등학생들의 수학 교과 태도 수준에는 유의미한 차이가 있을 것이다. 이와 같은 가설을 검증하기 위하여 초등학교 1학년 56명을 대상으로 이질 통제 집단 전후 검사 설계 방식을 적용하였다. 연구의 결과로 이 연구의 가설은 채택 되었으며, 교육용 로봇을 활용한 STEM 통합교육은 초등학생의 수학 교과태도 수준 신장에긍정적인 영향을 미치는 것으로 나타났다. 향후 다양한 교과의 지식과 활동을 교육용 로봇을 매개로 통합 융합할 수 있는 교육활동이 필요하다.