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RISS 인기검색어
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- 저자 : 孫守國 (검색결과 61 건)
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다기능 디지털 전압기록장치 시스템 개발(하드웨어 부문)
孫守國 水原大學校 1999 論文集 Vol.17 No.-
This paper describes a new voltage recorder for the voltage management of a power distribution line by using a new voltage measurement technique. The RMS(Root Mean Square) voltage measurement for the power line under the assumption of a sinusoidal input voltage is taken by the full-wave rectifier, half-adder utilizing operational amplifier(OP) circuit. A new A/D converter technique utilizing a dual slope converter converts an analog voltage signal into a serial pulse. The Pulse is counted with a single chip micro-controller, converted with the RMS voltage, and saved into a flash memory. Voltage Management System can analyze the stored data via RS-232C cable.
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Implementation of the MAC layer based EIA 709.1 EIA 709.1 MAC 계층 구현에 관한 연구
孫守國 수원대학교 2006 論文集 Vol.24 No.-
ANSI/EIA709.1 프로토콜은 현재 산업의 빌딩제어, 선박 전력 제어 및 홈네트워크와 같은 다양한 분야에서 사용되고 있다. 먼저 에실론에서 개발되었는데, 이는 단일칩의 형태이며 뉴론 C 언어로 프로그램되어 사용된다. 본 논문에서는 예측적 p-persistent CSMA/CA에 기반한 EIA 709.1의 MAC 계층을 ANSI C와 32비 프로세서 S3C2410(ARM920T)를 사용하여 구현한다. 또한 전력선 통신의 물리계층과의 인터페이스가 구현된다. 결론으로 기존의 8비트 프로세서에 뉴론의 단일칩 대신에 32비트 프로세서 기반으로 사용한 호환성과 성능향상이 달성되었다.
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孫守國 水原大學校 2004 論文集 Vol.22 No.-
This paper describes the development of a web-based boiler controller which can be in parallel operated with an existing boiler controller. The web-based boiler controller mainly consists of RTL8019AS NIC and 8032 microcontroller. In order to communicate over the Internet, we need to develop network driver, IP, TCP, UDP, ICMP, and HTTP. For a specific application like web-boiler controller, we have proposed a common global data buffer algorithm to minimize the RAM memory usage. Finally, the correctness and performance of the protocols are tested and verified using CommView and Dummynet. The development is satisfactorily operated only for few hundreds of bytes of RAM usage without sacrificing interoperability between hosts.
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임펄스형 Ground Penetrating Radar 측정용 프로그램 개발
孫守國 水原大學校 2000 論文集 Vol.18 No.-
This paper discusses a two-dimensional synthetic aperture imaging technique based on pulse-echo radar data. We describe the basic image formation process, important data processing issues, and compensation for planar variations in the media. We present a high-resolution volumetric image reconstruction of a gas pipe under the earth and show that we are able to identify gas pipes in the image. We conclude with test results.
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손수국,Son, Su-Guk 한국전자통신연구원 1984 전자통신 Vol.6 No.4
in the case of using SMES to shave the peak load with the isolated synchronous ge nerator- converter, the performance equations are derived. The commutation angle, the power angle, the field current, the storage energy and the power are derived by changing firing angle, that is, following the excitation velocity of SMES current. The output characteristics are computed by digital computer simulation.
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Web browser를 이용한 가정용 가스보일러 제어기술 개발
손수국,Shon, Su-Goog 한국조명전기설비학회 2004 조명·전기설비학회논문지 Vol.18 No.6
본 논문에서는 기존 보일러 제어기와 병행하여 사용될 수 있는 인터넷 웹 보일러제어 기술의 개발에 논한다. 웹보일러제어기는 중요 요소로 RTL8019 네트워크제어기와 TS80C32 마이크로콘트롤러로 구성된다. 인터넷을 통한 통신을 위하여 IP, TCP, UDP, ICMP, 및 HTTP의 프로토콜과 이더넷 네트워크드라이버를 개발할 필요가 있다. 웹 보일러제어기 경우, RAM사용량을 최소화하기 위한 공통전역버퍼 알고리즘을 제안한다. 끝으로 개발된 프로토콜들의 올바름과 성능을 측정하기 위하여 CommView와 Dummynet이 사용된다. 개발결과 수백 바이트 RAM에서도 호스트 간에 상호 호환성을 잃지 않고 임베디드 웹 제어기가 동작된다. This paper describes the developmnet of a web-based boiler controller which can be in parallel operated with an existing boiler controller. The web-based boiler controller mainly consists of RTL8019AS NIC and TS80C32 microcontroller. In order to communicate over the Internet, we need to develop network driver, IP, TCP, UDP, ICMP, and HTTP. For a specific application like web-boiler controller, we have proposed a common global data buffer algorithm to minimize the RAM memory usage. Finally, the correctness and performance of the protocols are tested and verified using CommView and Dummynet. The development is satisfactorily operated only for few hundreds of bytes of RAM usage without sacrificing interoperability between hosts.
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손수국 水原大學校 2014 論文集 Vol.28 No.-
A balise, electronic transponder placed between the rails of railways is nowadays used to get the exact location of a train in the European Train Control System. The Balise is gradually being introduced on railways throughout the European Union or China, even in Korea. The standard specification requires a telegram of 1023 bits or 341 bits in the channel encoding with 11 bit per symbol. In this paper, the encoding process consisting of shaping and scrambling operation is described for the user payload data. The whole process is implemented and verified.
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Misra C 기반 유로발리스 시스템의 디코딩 기술 구현
손수국 水原大學校 2018 論文集 Vol.32 No.-
A balise, electronic transponder placed between the rails of railways is nowadays used to get the exact location of a train in the European Train Control System. The Balise is gradually being introduced on railways throughout the European Union or China, even in Korea. The standard specification requires a telegram of 1023 bits or 341 bits in the channel encoding with 11 bit per symbol. In this paper, the decoding process, one for the long format (with n=1023) and one for the short format (n=341), is described for the user payload data. The whole balise software based on Misra C is implemented and verified.
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손수국 水原大學校 2016 論文集 Vol.30 No.-
A balise, electronic transponder placed between the rails of railways is nowadays used to get the exact location of a train in the European Train Control System. The Balise is gradually being introduced on railways throughout the European Union or China, even in Korea. The standard specification requires a telegram of 1023 bits or 341 bits in the channel encoding with 11 bit per symbol. In this paper, the decoding process, one for the long format (with n=1023) and one for the short format (n=341), is described for the user payload data. The whole process is implemented and verified.
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