Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)

The Korean Reliability Society (한국신뢰성학회)
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Measurement of a Diagnostic Coverage for a Digital Signal Processor Board Using an FMEDA

FMEDA를 활용한 디지털 신호처리기 보드의 진단 유효범위의 측정

  • Keum, Jong-Yong (I&C.HFE Division, Korea Atomic Energy Research Institute) ;
  • Suh, Yong-Suk (I&C.HFE Division, Korea Atomic Energy Research Institute) ;
  • Lee, Jun-Koo (I&C.HFE Division, Korea Atomic Energy Research Institute) ;
  • Park, Je-Yun (I&C.HFE Division, Korea Atomic Energy Research Institute)
  • 금종룡 (한국원자력연구원 계측제어.인간공학연구부) ;
  • 서용석 (한국원자력연구원 계측제어.인간공학연구부) ;
  • 이준구 (한국원자력연구원 계측제어.인간공학연구부) ;
  • 박재윤 (한국원자력연구원 계측제어.인간공학연구부)
  • Published : 2008.06.30
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Abstract

Good diagnostics improves both the safety and system unavailability of digital safety systems. The measure of a diagnostic capability is called the Coverage Factor. Because the Failure Modes, Effects and Diagnostic Analysis (FMEDA) provides information on the failure rates and failure mode distributions necessary to calculate a diagnostic coverage factor for a component, the FMEDA can be used as a useful tool to calculate it. Through performing FMEDA on a digital signal processor (DSP) board used in a digital safety system, it is shown that some components of the DSP board can be replaced or improved to satisfy the required diagnostic coverage. That is, the FMEDA can serve as a useful verification tool to design a diagnostic capability for the DSP board.

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