• 제목/요약/키워드: Arbitrary Electrical Wiring

검색결과 3건 처리시간 0.017초

자동차 임의배선에 의한 화재발생 가능성 연구 (Study on the Possibility of Car Fire by Arbitrary Electrical Wiring)

  • 김민;윤장수
    • 한국화재조사학회학술대회
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    • 한국화재조사학회 2011년도 제20회 추계학술대회
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    • pp.91-119
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    • 2010
  • 자동차 수의 증가와 함께 자동차 화재 또한 꾸준한 증가 추세에 있다. 본 연구에서는 자동차 화재의 여러 요인들 중 자동차 출고 이후에 사용자에 의하여 변형된 부분, 즉 자동차 튜닝으로 인하여 화재가 발생할 가능성을 입증하고자 하였다. 실험 결과 전조등의 밝기를 향상시키기 위한 교체, 멀티시거잭 배선의 허용전류를 초과하여 전기장치를 사용하는 경우, 전선의 손상, 그리고 시중에서 튜닝용으로 구입하여 사용하는 전기배선의 취약성 등이 화재 가능성에 영향을 미치는 것으로 나타났다.

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PXI모듈을 이용한 랩뷰 기반 시간-주파수 영역 반사파 실시간 계측 시스템 구현 (Implementation of a Labview Based Time-Frequency Domain Reflectometry Real Time System using the PXI Modules)

  • 박태근;곽기석;박진배;윤태성
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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    • pp.336-338
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    • 2006
  • One of the important topics concerning the safety of electrical and electronic system is the reliability of the wiring system. The Time-Frequency Domain Reflectometry(TFDR) is a state-of-the-art system for detection and estimation of the fault on a wiring/cable. The purpose of this paper is to implement a Labview based TFDR Real Time system though the instruments of PCI extensions for Instrumentation(PXI). The TFDR Real Time system consists of the five parts: Reference signal design, signal generation, signal acquisition, algorithm execution, results diplay part. In the signal generation and acquisition parts we adopt the Arbitrary Waveform Generator(AWG) and Digital Storage Oscilloscope(DSO) PXI modules which offer commonality, compatibility and easy integration at low cost. And execution of the PXI modules not only is controlled by the Labview programing but also the total system process is executed by the Labview application software.

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시간-주파수 영역 반사파 계측방법을 이용한 부하 저항 측정 시스템 구현 (The Implementation of Load Resistance Measurement System using Time-Frequency Domain Reflectometry)

  • 곽기석;박태근;윤태성;박진배
    • 대한전기학회논문지:시스템및제어부문D
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    • 제55권10호
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    • pp.435-442
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    • 2006
  • One of the most important topics about the safety of electrical and electronic system is the reliability of the wiring system. The Time-Frequency Domain Reflectometry(TFDR) is a state-of-the-art system for detecting and estimating of the fault on a wiring. In this paper, We've considered the load resistance measurement on a coaxial cable using TFDR in a way of expanded application. The TFDR system was built using commercial Pci extensions for Instrumentation(PXI) and LabVIEW. The proposed real time TFDR system consisted of the reference signal design, signal generation, signal acquisition, algorithm execution and results display part. To implement real time system, all of the parts were programmed by the LabVIEW which is one of the graphical programming languages. Using the application software implemented by the LabVIEW, we were able to design a proper reference signal which is suitable for target cable and control not only the arbitrary waveform generator in the signal generation part but alto the digital storage oscilloscope in the signal acquisition part. By using the TFDR real time system with the terminal resistor on the target cable, we carried out load impedance measurement experiments. The experimental results showed that the proposed system are able not only to detect the location of impedance discontinuity on the cable but also to estimate the load resistance with high accuracy.