• The Journal of Korean Association of Computer Education
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• v.10 no.4
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• pp.113-124
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• 2007

The virtual laboratory is implemented by Java applets and FLASH animations, which provides the learners with improved experimental methods. If the learners have access to the virtual laboratory system through signing up procedure, they can acquire the fundamental concepts and make a virtual experiment on 8051 microcontroller. In addition, we have implemented the remote laboratory for practicing 8051 microcontroller, which can be used to compensate the absence of reality, occurred during virtual laboratory session. Finally, the proposed integration laboratory provides the learners with almost all the same and advantages as a real laboratory environment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.2
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• pp.324-332
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• 2007

In this paper, we developed remote control devices that can be controlled passive component e.g. resistor, inductor, capacitor that is a basic element in the electric circuit. We embodied a remote laboratory for basic circuit theory which learners can experiment controlling element value to remote through the internet. It was seen that is useful applying passive component developing to a remote laboratory. Because developed passive components can response in an experiment altering several element values to remote, they will be used very usefully in a remote experiment that equip various experiment theme. Therefor the proposed laboratory will be solved problems of virtual laboratory which students do not handle instruments in engineering experiment. With our proposed system, students can experiment any time, anywhere.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.5
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• pp.1184-1192
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• 2008

There have been a large number of trials of the experimental education in engineering using virtual laboratories implemented in virtual space, namely on the Web. Although virtual education is regarded as an effective educational means that overcomes the limit of time and space and bring high teaming effects, the problem of lack of reality must be solved. The present study proposed and implemented a real-time remote laboratory as a solution for the problem of lack of reality in virtual education. The remote laboratory provides functions with which learners can perform experiments by remote-controlling circuits and equipment related to experiments and practices on the Web and gets data and image information, so through it learners can make realistic experiments at any time and in any place. The remote laboratory module based on Internet open sources such as JAVA Web start technology, FTP technology and Telnet technology in server-client environment can be implemented at low cost, and is effectively applicable to engineering experiment education in various areas related to real-time hardware control.

• Journal of Engineering Education Research
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• v.3 no.2
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• pp.14-23
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• 2000

This paper is concerned with the development of remote engineering laboratory using the internet. Recently, various virtual laboratories are introduced using the multimedia technologies but the internet laboratory using the real hardware system is not present. In this study, we developed the remote engineering laboratory by combining the GPIB program which controls the hardwares with the web programming which controls the internet. The function generator, LCR meter, and oscilloscope were considered as the measurement devices. The client program includes the user-interface which carry out experiment remotely. Several electrical experiments were set up to verify the experimental process. It has been found that the remote engineering experiments are feasible and valid. The methodologies will be discussed in detail.

• Proceedings of the KAIS Fall Conference
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• 2008.05a
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• pp.198-201
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• 2008

인터넷의 비약적인 발달은 제어시스템의 설계 및 운영에도 많은 영향을 미치게 되어 지금까지와는 전혀 다른 시스템 구현이 가능한 환경으로 만들어 가고 있다. 이와 같은 배경에서 본 연구에서는 LabVIEW를 이용한 복합 공정의 제어 및 모니터링을 Web을 기반으로 한 새로운 방법의 원격제어 시스템을 사용하여 가상실험실을 구현하였다. LS산전의 GLOFA-GM3와 미쓰비시의 MELSEC-Q PLC를 각각 TCP/IP와 RS-232C통신을 사용하여 복합공정 제어 시스템을 구현하였다. NI사의 LabVIEW 프로그램에서 지원하는 Web 출판 기능을 사용하여 웹상에서 50대의 Clint PC의 접속을 가능하게 하여 원격으로 접속, 학습이 가능하도록 가상실험실을 구현하였으며 학습자들은 원격으로 복합 제어공정을 실시간으로 학습할 수 있게 되었다. 나아가 Web 상에서 원격제어의 가능성을 활용하여 산업체에서의 활용범위를 넓히고, 가상 교육환경의 가능성을 열었다.

• Journal of the Korean Institute of Intelligent Systems
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• v.13 no.4
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• pp.448-454
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• 2003

This paper concerns the establishment of the Internet-based virtual laboratory (VL). In control engineering, it is required to evaluate the feasibility of a newly developed controller design technique by applying to a physical system. However, it is inefficient to make or build such a experimental apparatus in all research activities. A possible remedy is to share such a apparatus spatially via the Internet. We set up techniques for the remote -control of various experimental apparatuses based on the Internet. The proposed VL forms a server-client structure and is implemented in multi-control interfaces.

• Journal of Engineering Education Research
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• v.10 no.3
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• pp.79-92
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• 2007

To enhance the excellence, effectiveness and economical efficiency in the learning process, we implement a hybrid educational system for engineering experiments where web-based virtual laboratory systems and distance education systems are properly integrated. In the first stage, we designed client/server distributed environment and developed web-based virtual laboratory systems for digital systems and electrical/electronic circuit experiments. The proposed virtual laboratory systems are composed of four important sessions and their management system: concept learning session, virtual experiment session, assessment session. With the aid of the management system every session is organically tied up together to achieve maximum learning efficiency. In the second stage, we have implemented efficient and cost-effective distant laboratory systems for practicing electric/electronic circuits, which can be used to eliminate the lack of reality occurred during virtual laboratory session. The use of simple and user-friendly design allows a large number of people to access our distant laboratory systems easily. Thus, self-guided advanced training is available even if a lot of expensive equipment will not be provided in the on-campus laboratories. The proposed virtual/distant laboratory systems can be used in stand-alone fashion, but to enhance learning efficiency we integrated them and developed a hybrid educational system for engineering experiments. Our hybrid education system provides the learners with interactive learning environment and a new approach for the delivery of engineering experiments.

• The Journal of Korean Association of Computer Education
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• v.10 no.6
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• pp.39-49
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• 2007

In this paper, a web-based, advanced education system for embedded systems have been implemented, which provide students reality through remote controlled experiment environment when they conduct experiments through web, in addition to the creative multimedia contents. Students can use the server-side remote experiment environment through telnet client using Java technology to conduct a variety of experiments on the embedded system remotely. Our system can be used as economical education tools for expensive experiment equipments in shared fashion through web as well as effective and convenient ones for embedded systems anywhere and anytime when internet access is available, compensating for lack in reality of virtual educations.

• Journal of Radiation Protection and Research
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• v.27 no.1
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• pp.59-66
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• 2002

The role of experiments in science education is essential for understanding the natural phenomena and principle related to a subject. Therefore, the remote control experiment via Internet is one of key solution for distance learners in science education. The remote experiments ate also necessary for the time-consuming experiment which takes several days, collaborative experiment between distance learners, expensive laboratory equipment which is not usually available to students, experimental procedure which is dangerous, etc. In this study, we have developed a general method for a remote control laboratory system using internet and interlace techniques. It is possible for students to learn the nuclear physics to control the real instruments and conduct physics experimentation with internet techniques. We proposed the remote control radiation measurement system as a sample application. This system could be useful for the monitoring near a nuclear power plants in order to improve the environment data credibility to the public.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.1
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• pp.101-106
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• 2010

Due to significant advances in Internet technology, there have been many e-learning courses offered by universities and academic institutes nowadays through the Internet. And these courses have benefited many students who might be constrained by distance and time. Nevertheless, most web-based courses are lecturing courses that cannot fulfill the needs for engineering technology education. In this paper, we propose the design and implementation of web-based programmable logic controller(PLC) laboratory to support learning and training for industrial automation. The proposed web-based PLC laboratory system consists of virtual labs and remote labs. This web-based PLC laboratory can be accessed by registered students to practice PLC experiments at their own home, enhancing the quality of education without much increasing in the overall cost. With the help of web cameras, the students can even have experience the live PLC experiments through the Internet.