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Systems Engineering and Software Specialists ABACUS   AI   PROJECTS   PRESENTATION Abacus has applied AI techniques to many real-world problems.
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EXPANEL

EXPANEL is an Abacus expert system containing straightforward fault diagnosis decision tree information encoded into an expert system shell.  It was developed to demonstrate how expert system technology might provide a key payoff to avionics flight systems which should be autonomous from real-time ground support.  This autonomous refinement is desired, for example, in future Space Shuttle and Space Station operations.  In the EXPANEL system, a portion of the Space Shuttle Electrical Power Distribution and Control System (EPD&C) malfunction procedures is encoded into a forward chaining expert system.  Using ESI, an existing expert system shell, and given the existing malfunction procedures (which were already in an "IF X THEN Y" format), the EXPANEL system was developed in a matter of a few days.  The approach used is now being applied to other similar problems.



Space Shuttle EPD&C Malfunction Procedures
EXPANEL is an Abacus expert system containing EPD&C fault diagnosis information encoded into an expert system shell.
  Presentation
     Overview


  1. AIBUS
  2. AICIM
  3. AICOURSE
  4. AIELEC
  5. AITOOLS
  6. ALSES
  7. ESI
  8. ESSGRAPH
  9. ETSS
10. EXAUDIT
11. EXCABL
12. EXDATA
13. EXDCP
14. EXDIAG
15. EXFAULT
16. EXIMU
17. EXMIS
18. EXMISSION
19. EXPANEL
20. EXPDL
21. EXRMS
22. EXTRAJ
23. EXWATCH
24. FICX
25. GDISPO
26. ISMAX
27. METAPACK
28. MMIL
29. NATLAN
30. PIRCS
31. POWERPACKS
32. RBENCH
33. REXPERT
34. SAUDIT
35. SBENCH
36. SCOTTY
37. SHELLTRADE
38. SQUAL
39. SSAI
40. TWELF
41. USER
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