A Fault Detection and Isolation Method Applied to Liquid Oxygen Loading for the Space Shuttle

Scarl, Ethan A.; Jamieson, John R.; Delaune, Carl I.

A Fault Detection and Isolation Method Applied to Liquid Oxygen Loading for the Space Shuttle

Ethan A. Scarl, John R. Jamieson, Carl I. Delaune

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Proceedings of the Ninth International Joint Conference on Artificial Intelligence. Expert Systems. Pages 414-415.

Abstract

Process-monitoring and fault lo catio n techniqu es have been developed at the Kennedy Space Center in a domain of mixed med ia control in NASA's Space Shuttl e Launch Processing System. An intuitively appealing diagno stic technique and representation of the system's str ucture and function were formulated in coop e ration with system engineers . Functional relationships that d ete rmine the consistency of sensor me asurements are represented by sy mbolic expressions e mb edded in frames. Functional relationships are st or e d in exactly one place, so they must be inverted to de termine hypoth etica l values for possibly faulty objects. Propagating thes e hypoth e ti cal sta tes to other se n sors permits the lo cation of faults. Standard sy mbolic inv ersion techniques have be e n ex t en d e d to include con diti onal functions. A demonstration system is operating, and lts evaluaticn will soon use live data from th e firing rooms a t KSC.

Ethan A. Scarl, John R. Jamieson, and Carl I. Delaune. 1985. A Fault Detection and Isolation Method Applied to Liquid Oxygen Loading for the Space Shuttle. In Proceedings of the Ninth International Joint Conference on Artificial Intelligence, IJCAI-85. IJCAI, 414–415. https://ijcai.org/proceedings/1985/79

@inproceedings{ijcai1985p79,
  title     = {A Fault Detection and Isolation Method Applied to Liquid Oxygen Loading for the Space Shuttle},
  author    = {Scarl, Ethan A. and Jamieson, John R. and Delaune, Carl I.},
  booktitle = {Proceedings of the Ninth International Joint Conference on
               Artificial Intelligence, {IJCAI-85}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Aravind Joshi},
  pages     = {414--415},
  year      = {1985},
  note      = {Expert Systems},
  url       = {https://ijcai.org/proceedings/1985/79},
}

TY  - CPAPER
TI  - A Fault Detection and Isolation Method Applied to Liquid Oxygen Loading for the Space Shuttle
AU  - Scarl, Ethan A.
AU  - Jamieson, John R.
AU  - Delaune, Carl I.
T2  - Proceedings of the Ninth International Joint Conference on Artificial Intelligence, IJCAI-85
PB  - International Joint Conferences on Artificial Intelligence
PY  - 1985
SP  - 414
EP  - 415
UR  - https://ijcai.org/proceedings/1985/79
ER  -