• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.739-742
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• 1997

A remote drum grappling device coupled to the anti-swing crane has been developed by KAERI to cope with problems involved in manually treating low level waste drums. In order for this grappling device to be operated effectively, multi-sensors including CCD camera were employed. As an activity representation scheme of the device, Extended State Machine (ESM) was used to descibe its operation sequences. The performance testing of the device was conducted successfully, and consequently its application could be extendable to industrial operation environment.

• 한국CDE학회논문집
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• 제13권6호
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• pp.429-439
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• 2008

With a remote operated manipulator system, the situation at a remote site can be rendered through remote visualized image to the operator. Then the operator can quickly realize situations and control the slave manipulator by operating a master input device based on the information of the virtual image. In this study, the remote operator visual support system (ROVSS) was developed for viewing support of a remote operator to perform the remote task effectively. A visual support model based on virtual environment was also inserted and used to fulfill the need of this study. The framework for the system was created by Windows API based on PC and the library of 3D graphic simulation tool such as ENVISION. To realize this system, an operation test environment for a limited operating site was constructed by using experimental robot operation. A 3D virtual environment was designed to provide accurate information about the rotation of robot manipulator, the location and distance of operation tool through the real time synchronization. In order to show the efficiency of the visual support, we conducted the experiments by four methods such as the direct view, the camera view, the virtual view and camera view plus virtual view. The experimental results show that the method of camera view plus virtual view has about 30% more efficiency than the method of camera view.

• 한국초등과학교육학회지:초등과학교육
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• 제39권4호
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• pp.522-532
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• 2020

The aims of this study were to do a survey on teachers' perception and operational state for elementary science online remote classes and suggest ways to improve the elementary science online remote classes. The survey was based on responses from 100 teachers who have taught elementary science online remote classes for the first semester of 2020 for COVID-19. The questionnaire used in this study consisted of four parts: general informations of participants, the operation status of elementary science online remote classes, teachers' perceptions on the operation of elementary science online remote classes, ways to improve elementary science online remote classes. As a result of this study, elementary teachers taught elementary science online remote classes on the main use of content utilization type. And they had a difficulty in conducting elementary science online remote classes because of lack of contents, absence of elementary science online remote classes teaching methods, learner management and heavy workload. Therefore, to improve elementary science online remote classes the Ministry of Education and regional offices of education have to develop and provide high-quality contents reflect the characteristics of elementary science subjects, introduce a rent-an-experiment equipment system, and build a science class platform providing frequent real-time interaction between teacher and student.

• 한국응용과학기술학회지
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• 제26권2호
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• pp.151-160
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• 2009

At this study, we are developing a possible control system through remote monitoring for fire protection in various chemical factory facilities. It's possible to do real time confirmation of a normal operation presence of the various equipment installed in a chemical factory through the internet network at a fire fighting head office, an area fire department and a chemical factory situation room using this remote monitoring control system. When occurring, abnormal operation is the remote monitoring control system, which can check this immediately and notify the situation room administrator. After it was tested using developed remote monitoring control system, the remote monitoring for which the internet network was used confirmed possible.

• 전기학회논문지
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• 제64권4호
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• pp.586-591
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• 2015

This paper proposes a force feedback system of telepresence robot for remote operation. The ultrasonic sensors attached at the robot detect the obstacles, and generate the force to the operation joystick. In order to consider the network delay, we developed the fuzzy control system using ultrasonic data and robot speed. The method to calculate the force vector from the ultrasonic data is also presented to operate the robot more accurately. The simulation and experimental results are presented to verify the safe and accurate operation of the proposed system.

• 디지털융복합연구
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• 제18권9호
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• pp.317-322
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• 2020

본 연구는 대학에서 원격강의를 올바르게 운영하기 위한 운영방안의 토대를 마련하는 데 목적이 있다. 'COVID-19'로 인해 비대면 수업을 시작한 학교 중, 시스코사의 웹엑스 미팅으로 원격강의를 진행한 일부 대학의 대학생, 대학원생을 대상으로 원격 강의 플랫폼 운영방안을 연구하였다. 먼저 문헌조사로 원격강의의 강의 요건을 정립하고, 설문조사를 통해 효과적인 운영 방안을 제시하였다. 연구 방법은 대학생, 대학원생 총 45명을 대상으로 2020년 4월 21일부터 5월 15일까지 진행하였다. 연구결과 크게 기본요소, 충족 요소에 대한 운영 방안을 제시할 수 있었다. 본 연구를 기점으로 COVID-19 이후에 발생할 수 있는 재난 상황 혹은 평상시 수업에서 활용될 수 있을 것으로 기대하며, 추후 원격 강의 플랫폼에 대한 사용성 평가와 국내 원격강의 플랫폼이 나아가야할 방향성이 제시되어야 할 것이다.

• Applied Microscopy
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• 제34권1호
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• pp.13-21
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• 2004

최근에 한국기초과학지원연구원에 설치된 초고전압 투과전자현미경은 원자분해능(점분해능 $1.2{\AA}$ 이하)의 구현과 고경사각 tilting 기능(${\pm}60^{\circ}$)에 의해 시편의 원자배열 구조를 3차원적으로 이미징할 수 있는 고성능 투과전자현미경이다. 이에 더하여 FasTEM이라는 원격 운용 시스템이 갖춰져 있어서 장비의 직접운용에 따른 여러 제약을 극복할 수 있게 한다. 초고전압 투과전자현미경의 원격운용을 위해 FasTEM 원격 시스템은 본원 초고전압 투과전자현미경에 설치된 Server 시스템과 서울분소에 설치된 Client 콘솔 시스템을 155 Mbps급 초고속 선도망 KOREN에 연결하여 구성하였으며 서울분소에서 대전본원의 초고전압 투과전자현미경을 운영하여 Au의 [001] 고분해능 영상을 얻는데 성공하였다. 초고전압 투과전자 현미경의 조사계 및 결상계 시스템 파라메타들의 조정, 각각의 detector 시스템 조정과 이미징, goniometer와 aperture 구동을 위한 motor-driven system들의 동작 등 초고전압 투과전자현미경의 원격 조정은 원격 작업자가 현장에 있는 것과 마찬가지로 실시간 운용이 가능하였다. 초고전압 투과전자현미경과 IT 기반기술의 접목에 의해 실현된 원격운용 기능은 국가적 공동연구시설에 대한 e-Science Grid를 구축하는데 중요한 역할을 하리라 기대된다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 학술대회 논문집 정보 및 제어부문
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• pp.502-504
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• 2004

With rapidly growing of computer and internet technology, Internet-based tote-operation of robotic systems has created new opportunities in resource sharing, long-distance learning, and remote experimentation. In this paper, remote control system of a mobile robot through the internet has been designed. The internet users can access and command a mobile robot in the real time, receiving the robot's sensor data. The overall system has been tested and its usefulness shown through the experimental results.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2003년도 제20회 춘계학술대회 논문집
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• pp.207-210
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• 2003

The purpose of this work is to introduce the Remote Control System for KSR-III Liquid Rocket Propulsion System. We developed the high reliable Fire control System that needed for long distance control. We carried out a real time remote control and measuring for KSR-III lust Liquid Propulsion Rocket in Korea using TCP/IP Ethernet network method and Fiber-optic communication method. Also HMI operation program developed guarantee confidential control, monitoring and analysis for Fire control operation.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 추계학술대회 논문집 학회본부A
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• pp.211-213
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• 1998

This paper introduces the additional remote monitoring and remote setting functions needed to operate the distribution automation system effectively. we compare the additional functions with the old functions. The remote setting of minimum trip value of fault indicator is an example of additional function. It saves time and line-man's power. Also this paper describes the data transmission flow diagram for operation of distribution automation system using wireless communication method.