정보처리학회논문지A (The KIPS Transactions:PartA)

한국정보처리학회 (Korea Information Processing Society)
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확장 ASR 기법을 이용한 임무지향 컴퓨터의 설계 및 신뢰도 분석

The Design and Reliability Analysis of A Mission-Critical Computer Using Extended Active Sparing Redundancy

  • 발행 : 2009.08.31
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초록

대공방어용 임무지향 컴퓨터는 장시간의 대공방어 임무를 성공적으로 완수하기 위하여 고장감내 기능이 필수적으로 요구되며, 고장감내 기법으로는 지상 장비인 임무지향 컴퓨터에 적합한 저비용의 기법이 요구된다. 현재 기본형의 임무지향 컴퓨터에는 저비용의 ASR 고장 감내 기법이 적용되어 있으나, ASR 기법은 TMR 기법을 적용한 컴퓨터에 비해 낮은 임무 신뢰도를 제공한다. 그러므로 본 논문에서는 TMR 기법을 적용한 컴퓨터 보다 적은 수량의 프로세서 보드를 사용하여 우수한 신뢰도를 제공하는 확장형 ASR(EASR) 고장 감내 기법을 제안하였으며, 제안된 EASR 기법 을 적용한 임무지향 컴퓨터의 고장 감내 성능을 입증하였다. EASR 기법의 임무지향 컴퓨터는 고장 감내 성능과 저비용성 측면에서 대공방어 시스템의 컴퓨터에 적합하였다.

The mission-critical computer for air defense has to maintain its operation without any fault for a long mission time and is required to implement at low cost. Now the reliability of the mission critical-computer using Active Sparing Redundancy fault-tolerant technique is inferior to that of the computer using TMR technique. So in this paper are proposed Extended ASR(EASR) technique that provides higher reliability than that of the computer using TMR technique. The fault-tolerant performance of the implemented mission-critical computer is proven through reliability analysis and numbers of fault recovery test. Also, the reliability of the mission-critical computer using EASR technique is compared with those of computer using ASR and TMR techniques. EASR technique is very suitable to the mission-critical computer.

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참고문헌

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