Validation of the supervisory portion of a distributed fault tolerant control system

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The supervisory portion of a distributed fault tolerant control system (DFTCS) is responsible for managing redundancy, ensuring consistent control, and recovering from failures. Such software poses a unique set of challenges for validation testing. A test environment for such validation is described in this paper. Data has been collected on a total of 1000 test hours involving 2 million control actions and 700,000 randomly injected single and multiple faults. No anomalous behavior has been observed. Quantitative results include a coverage of 0.98 in the presence of an average of 2 simultaneous faults (maximum of 4 simultaneous faults) and an average ... continued below

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Pages: (22 p)

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Hecht, M.; Agron, J. (SoHaR, Inc., Beverly Hills, CA (United States)) & Groves, C. (Argonne National Lab., IL (United States)) January 1, 1992.

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Description

The supervisory portion of a distributed fault tolerant control system (DFTCS) is responsible for managing redundancy, ensuring consistent control, and recovering from failures. Such software poses a unique set of challenges for validation testing. A test environment for such validation is described in this paper. Data has been collected on a total of 1000 test hours involving 2 million control actions and 700,000 randomly injected single and multiple faults. No anomalous behavior has been observed. Quantitative results include a coverage of 0.98 in the presence of an average of 2 simultaneous faults (maximum of 4 simultaneous faults) and an average response time (in presence of faults) of 10 msec when less than 2 simultaneous faults were injected. A separate long term stability test running at the Experimental Breeder Reactor II site of the Argonne National Laboratory West has been running continuously since November of 1991.

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Pages: (22 p)

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OSTI; NTIS; GPO Dep.

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  • COMPASS 92 (Computer Assurance and Safety) conference, Gaithersburg, MD (United States), 15-18 Jun 1992

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  • Other: DE92014866
  • Report No.: ANL/CP-75805
  • Report No.: CONF-9206177--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5348362
  • Archival Resource Key: ark:/67531/metadc1074618

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  • January 1, 1992

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • April 17, 2018, 3:39 p.m.

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Hecht, M.; Agron, J. (SoHaR, Inc., Beverly Hills, CA (United States)) & Groves, C. (Argonne National Lab., IL (United States)). Validation of the supervisory portion of a distributed fault tolerant control system, article, January 1, 1992; Illinois. (digital.library.unt.edu/ark:/67531/metadc1074618/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.