http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
릴레이 스위칭기법을 이용한 원격 전기회로 실험실의 구현
최관순(Kwansun Choi),김동식(Dongsik Kim),임종식(Jongsik Lim),안달(Dal Ahn),전창완(Changwan Jeon),이순흠(Sunheum Lee),전흥구(HeungGu Jeon) 한국정보기술학회 2016 한국정보기술학회논문지 Vol.14 No.5
In the field of engineering experiment remote laboratories for electric circuit have some problems that the learners cannot change circuit composition and circuit element values for their convenience. In this paper we implemented a new type of remote laboratory for electric circuit so that we could overcome such problems. We have developed variable resistor, inductor and capacitor modules driven by several stepping motors so that the learners are able to remotely control the circuit composition and circuit element values through relay switching technique. The proposed remote laboratory in this paper is composed of four important components: ATmega128 micro controller for controlling the variable circuit element modules, data acquisition(DAQ) card, LabVIEW for operating their hardware resources and ELVIS device for measuring the circuit characteristics. Finally, we built the remote laboratory for RLC series impedance and series resonance experiments to show the validity of the proposed remote laboratory.
최관순(KwanSun Choi),한새론(SaeRon Hann),이다솜(Dasom Lee),이순흠(SunHeum Lee),전흥구(HeungGu Jeon) 한국정보기술학회 2014 한국정보기술학회논문지 Vol.12 No.3
In C language programming practice, students work together in presence of teaching assistant or professor in the laboratory. But on case of their practice at student’s home or any other place where professor or teaching assistant do not exist. they cannot discuss and get some help. A web-based cooperative learning helps learner learn problem solving under the conversation and debate at any time, anywhere. In the paper we proposed a web-based cooperative learning system with chatting window. Thus learner can practice c programming language with others and they can confirm the execution result of their program. in the system. The proposed system has a feature of sharing with chatting and C language source code window. The system shows that cooperative learning which students attend the bubble sort project proceed well.
최관순(KwanSun Choi),전흥구(HeungGoo Jun),유홍진(HongJin Yoo) 한국정보기술학회 2004 한국정보기술학회논문지 Vol.2 No.1
A Data Logger System collects and utilizes data short/long systems in real-time. The system is now generally used as it has been automated and it is applied in the fields such as forecasting, inspection and commercial facilities management systems. In our developed Data Logger System, the communications between the master and slave on the embodied system use the RS-422 type serial communications which maximizes the data transfer distance. In addition, the server and client utilize the existing network and they are embodied using TCP/IP protocol environment. The monitoring program is composed of the server side program and client program. By plotting out graphs with the real-time data, the monitoring system conveniently displays the data change.
이순흠(Sunheum Lee),최관순(Kwansun Choi),김동식(Dongsik Kim),한승택 한국정보기술학회 2006 한국정보기술학회논문지 Vol.4 No.3
It is very important to understand the usage of experiment units and to manipulate those well. But due to the limitation of access to experiment units and allowed time, effectiveness of experimental education might not be attained enough. To investigate the effectiveness of the multimedia contents as a pedagogical tool for a preliminary education for experiments, a post-experiment review is conducted for groups of freshmen-year engineering students participating in a digital system experiment class. Post-experiment review results showed that the developed multimedia contents helped students easily understand the usages of the digital lab kit and manipulate the real digital lab kit well without hesitation.
자동 이송장치를 갖춘 반도체 검사용 비파괴 검사장비 개발
이순흠(Lee SunHeum),최관순(Choi KwanSun) 한국정보기술학회 2006 한국정보기술학회논문지 Vol.4 No.5
In this paper, a Nondestructive Testing System has been developed, which can effectively detect the fatal defects such as delamination, crack, and void. Functions such as A/B/C-Scan, 3D display, a Multi-Layer Scan scanning up to 20 layers and clustering are available, with user-friendly interface. Also a high performance scanner equipped with a auto-loading device and a bubble auto-clearing device considerably enhances the quality, speed and reliability of inspections.
Windows CE.net을 이용한 임베디드 전자책 구현
한새론(SaeRon Han),최관순(Kwansun Choi),김동식(DongSik Kim),전창완(ChangW an Jeon),이순흠(SunHeum Lee) 한국정보기술학회 2009 한국정보기술학회논문지 Vol.7 No.2
We implement an E-book system using embedded system. The E-book system basically has a server-client structure, and the server operates on a general-purpose computer while the client uses an embedded device. The E-book system enables the use of both wire and wireless internet, and is given service from an embedded device that supports graphic output. This paper offered an E-book service through the use of a bitmap. You can get it only if there is a built-in execution file without an additional program for supporting a specific language and a font to an embedded device because it uses bitmap data. Also, this paper shows that the service may be shown in various resolutions as a bitmap is made according to the resolution information of a client.
한새론(SaeRon Hann),최관순(KwanSun Choi),임종식(Jongsik Im),김동식(Dongsik Kim),이순흠(SunHeum Lee),전흥구(Heunggu Jeon) 한국정보기술학회 2011 Proceedings of KIIT Conference Vol.2011 No.5
본 연구에서는 온도센서와 스테핑 모터, 자동급수장치를 이용해 실용적이며 안정적인 자동온실 시스템과 이를 간편하게 제어할 수 있는 어플리케이션을 개발하였다. 자동급수장치의 급수량을 조절하기 위해 NI사의 DAQ카드를 이용하였으며 해당 하드웨어 리소스를 운영하기 위해 NI사의 LabVIEW 소프트웨어를 사용하였다. In this paper, we developed practical and reliable automated greenhouse systems and applications which can control easily the greenhouse. NI’s DAQ card was used for control the supply of water at automatic watering device. NI’s LabVIEW software was used for operate the hardware resources.