• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2022년도 제66차 하계학술대회논문집 30권2호
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• pp.481-482
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• 2022

본 논문에서는 손동작으로 제어 가능한 운송 로봇을 제안한다. 제안한 시스템에서 로봇은 MediaPipe를 이용하여 실시간으로 사람의 손동작을 인식한다. 또한, 동시적 위치 추적 지도 작성 기법인 SLAM(Simultaneous Localization and Mapping) 기술을 이용하여 로봇이 실내 공간에서 길을 찾고 자율적으로 이동할 수 있게 한다. 개발된 로봇실험을 통하여 로봇이 실시간으로 손동작을 인식하고 동작을 제어하는 것을 확인하였다. 또한, 사전에 작성된 지도를 바탕으로 실내에서 로봇이 자율주행을 하는 것을 확인하였다.

• 정보처리학회논문지D
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• 제14D권6호
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• pp.657-664
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• 2007

URC(Ubiquitous Robotic Companion)이라는 개념은 로봇은 다양한 서비스를 어느 곳에서나 어느 때나 사용자가 제공 받을 수 있도록 네트워크 기반으로한 로봇 시스템을 일컫는다. 이는 로봇에 네트워크를 활용하여 로봇이 제공할 수 있는 응용서비스를 확장하고 로봇이 모든 기능을 자체적으로 가짐으로써 안게 되는 기술적, 비용적 문제를 네트워크를 통해 기능을 분담하는 것이다. URC 소프트웨어 컴포넌트는 크게 HRI, 로봇액션 등으로 구분되는데 본 논문에서는 URC 컴포넌트의 시험평가를 위하여 품질모델 분석과 컴포넌트 시험 성능 평가 기준서를 설계한다. 또한 품질 프로세스 정의, 테스트케이스 설계 및 URC 컴포넌트 테스팅과 평가 사례를 제안한다.

• 한국컴퓨터정보학회논문지
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• 제24권1호
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• pp.247-255
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• 2019

In this paper, we propose the effect of project-based robot education program on the interest toward robots and the computational thinking of elementary school students. Software education is being actively carried out around the world in order to cultivate software talents in accordance with the 4th industrial revolution. As a result, the importance of robots in education has increased, and education using robots has been actively introduced. However, the activities of simply assembling and repeating robots in schools were not effective in enhancing elementary school students' interest toward robots and computational thinking. Therefore, it is necessary to overcome traditional teaching-learning methods and to develop robot education. So, in this study, the robot education program that introduces project-based learning was developed for improvement of interest toward robots and computational thinking of elementary school students. In order to verify the developed education program, 114 elementary six grade students were selected as research subjects and the traditional teaching-learning method and project-based learning were applied to the experimental and control group. As a result, project-based learning was more effective for elementary school students' interest toward robot than traditional teaching-learning method. In computing thinking, the experimental group showed a significant improvement, but there was no statistically significant difference in the post-test.

• 제어로봇시스템학회논문지
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• 제11권12호
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• pp.1051-1061
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• 2005

This paper proposes a ubiquitous robot, Ubibot, as an integration of three forms of robots: Software robot (Sobot), Embedded robot (Embot) and Mobile robot (Mobot). A Sobot is a virtual robot, which has the ability to move to any place or connect to any device through a network in order to overcome spatial limitations. It has the capacity to interpret the context and thus interact with the user. An Embot is embedded within the environment or within physical robots. It can recognize the locations of and authenticate the user or robot, and synthesize sensing information. Also it has the ability to deliver essential information to the user or other components of Ubibot by using various types of output devices. A Mobot provides integrated mobile service. In addition, Middleware intervenes different protocols between Sobot, Embot, and Mobot in order to incorporate them reliably. The services provided by Ubibot will be seamless, calm and context-aware based on the combination of these components. This paper presents the basic concepts and structure of Ubibot. A Sobot, called Rity, is introduced in order to investigate the usability of the proposed concepts. Rity is a 3D synthetic character which exists in the virtual world, has a unique IP address and interacts with human beings through Vision Embot, Sound Embot, Position Embot and Voice Embot. Rity is capable of moving into a Mobot and controlling its mobility. In doing so, Rity can express its behavior in the virtual world, for example, wondering or moving about in the real world. The experimental results demonstrate the feasibility of implementing a Ubibot in a networked environment.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1201-1206
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• 2007

Robot simulation technique is essential not only for robot developers to design robotic systems but also for robot operators to predict robot motion, configure system layout, and increase robot ability. However, commercial robot simulation software such as ROBCAD, IGRIP, and so on are expensive and sometimes they are difficult to customize into industrial purpose programming for users. Therefore, user-based simulation programming is required to magnify the efficiency of robot system. In this paper, we show the methodology of developing user-based robot simulation programming using PC(personal computer), Open-Inventor, and Windows Programming. The developed programming has been successfully applied to welding robot systems of a shipbuilding industry. Also, the methodology presented here can be easily extended to simulate manipulators of other typed mechanism on user's PC.

• 정보처리학회논문지D
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• 제11D권2호
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• pp.461-470
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• 2004

반도체 업계에서는 200mm 반도체 웨이퍼 생산공정이 300mm 웨이퍼 생산공정으로 바뀜에 따라, 300mm 반도체 웨이퍼를 이동시키는 로봇을 모니터링하고 시뮬레이션하기 위한 소프트웨어 개발이 필요하다. 이런 소프트웨어는 독립적으로 동작하는 것이 아니라 MCS와 하위 시스템인 로봇과 통신하면서 실행되어야 하므로, 그 구성이 복잡하다. 그러므로, 이 시스템을 체계적으로 개발하기 위해서는 객체지향 개발 방법론인 UML을 적용할 필요성이 있다. 본 논문은 반도체 웨이퍼를 생산공정에서 이동시키는 로봇을 모니터링하고 시뮬레이션하기 위한 소프트웨어 개발에 UML 프로세스를 적용하였다. UML을 적용하여 UML을 기반으로 한 개발 프로세스 정의와 개발 단계별 업무들에 대한 구체적인 산출물들을 만들어 내었다.

• Journal of Information Processing Systems
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• 제19권3호
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• pp.370-376
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• 2023

Aiming at the problems of low image enhancement accuracy, long enhancement time and poor image quality in the traditional robot sequence motion image enhancement methods, an adaptive enhancement method for robot sequence motion image is proposed. The feature representation of the image was obtained by Karhunen-Loeve (K-L) transformation, and the nonlinear relationship between the robot joint angle and the image feature was established. The trajectory planning was carried out in the robot joint space to generate the robot sequence motion image, and an adaptive homomorphic filter was constructed to process the noise of the robot sequence motion image. According to the noise processing results, the brightness of robot sequence motion image was enhanced by using the multi-scale Retinex algorithm. The simulation results showed that the proposed method had higher accuracy and consumed shorter time for enhancement of robot sequence motion images. The simulation results showed that the image enhancement accuracy of the proposed method could reach 100%. The proposed method has important research significance and economic value in intelligent monitoring, automatic driving, and military fields.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2023년도 제67차 동계학술대회논문집 31권1호
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• pp.113-114
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• 2023

가정용 생활 쓰레기 수거 작업은 야간이나 이른 새벽에 이루어지고 있어 환경미화원의 안전사고와 수거 차량으로 인한 소음 문제가 빈번하게 발생한다. 본 논문에서는 딥러닝 기반의 영상 인식을 활용하여 종량제 봉투를 인식하고 수거가 가능한 생활 쓰레기 수거 로봇의 설계를 제시한다. 제시하는 생활 쓰레기 수거 로봇은 지정 구역을 자율주행하며 로봇에 장착된 카메라를 이용해 학습된 모델을 기반으로 가정용 쓰레기 종량제 봉투를 검출한다. 이를 통해 처리 대상으로 지정된 종량제 봉투와 로봇 팔 사이의 거리를 카메라를 활용하여 얻은 깊이 정보와 2차원 좌표를 토대로 목표 위치를 예측해 로봇 팔의 관절을 제어하여 봉투를 수거한다. 해당 로봇은 생활 쓰레기 수거 작업 과정에서 환경미화원을 보조하여 미화원의 안전 확보와 소음 저감을 위한 기기로 활용될 수 있다.

• 한국정밀공학회지
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• 제22권4호
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• pp.113-120
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• 2005

This paper presents the development of the design of the robot element. Robot element design is an important part of robot design since it decides the performance and life time of the robot. It is necessary that the robot kinematics and the robot dynamics are accomplished to design the robot elements. The robot kinematics and dynamics determine the design parameters of the element. We developed a robot element design program with which a designer can design the robot element with convenience and reliability. The program is composed of motor, harmonic driver and ball-screw design. The program is founded on the virtual robot design program. The virtual robot design program is the powerful software which may be used to solve various problems of the robot kinematics and dynamics. The robot element design program may be used to calculate the design parameters of the element that are necessary to design robot element. Therefore, the designer can decide upon the available robot elements available to perform the objective of the robot. The robot element design program is expected to increase the competitiveness and efficiency of the robot industry.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 추계 학술발표대회 논문집
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• pp.22-23
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• 2004