International Journal of Aeronautical and Space Sciences

  • 제3권2호
  • /
  • Pages.31-39
  • /
  • 2002
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  • 2093-274X(pISSN)
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  • 2093-2480(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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KOMPSAT-2 Fault and Recovery Management

  • Baek, Myung-Jin (Satellite System Department Korea Aerospace Research Institute) ;
  • Lee, Na-Young (Satellite System Department Korea Aerospace Research Institute) ;
  • Keum, Jung-Hoon (Satellite System Department Korea Aerospace Research Institute)
  • 발행 : 2002.11.30
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초록

In this paper, KOMPSAT-2 on-board fault and ground recovery management design is addressesed in terms of hardware and software components which provide failure detection and spacecraft safing for anomalies which threaten spacecraft survival. It also includes ground real time up-commanding operation to recover the system safely. KOMPSAT-2 spacecraft fault and recovery management is designed such that the subsequent system configuration due to system initialization is initiated and controlled by processors. This paper will show that KOMPSAT-2 has a new design feature of CPU SEU mitigation for the possible upsets in the processor CPUs as a part of on-board fault management design. Recovery management of processor switching has two different ways: gang switching and individual switching. This paper will show that the difficulties of using multiple-processor system can be managed by proper design implementation and flight operation.

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참고문헌

  1. Baek, M. Land Lee, J I., 2002, "On-board Management of Multiple Processor Spacecraft System," IEEE Transaction on Aerospace and Electronic Systems, submitted
  2. Korea Aerospace Research Institute, 2002, "KOMPSAT-2 Preliminary Fault Management Design," KOMPSAT-2 document
  3. Korea Aerospace Research Institute, 2001, "KOMPSAT-2 Spacecraft Bus Preliminary Design Audit", KOMPSAT-2 document
  4. Korea Aerospace Research Institute, 2001, "KOMPSAT-2 Preliminary Fault Management Design Report", KOMPSAT-2 design report
  5. Baek, M. J, Kim, D. Y., and Kim, H. J, 2001, "The Analysis on Space Radiat ion Environment and Effect on KOMPSAT-2 Spacecraft(ll): Single Event Effect," J. of KSSS, Vol. 18, No 2, pp 163-173
  6. Baek, M. J, Lee, J I., and Kim, H. J, 2001, "KOMPSAT-2 CPU SED Mitigation Design," Proceeding s of the KSAS Fall Annual Meeting 2001, pp 41-44
  7. Baek, M. J., 1999, "A Study on KOMPSAT Fault Management and Test," J. of KSAS, Vol. 27, No 8, pp 158-169
  8. Korea Aerospace Research Institute, 1999, "KOMPSAT-1 Fault Management Test Plan and Procedure", KOMPSAT-2 Test Plan and Procedure