EXPERT SYSTEMS FOR REAL-TIME MONITORING AND FAULT DIAGNOSIS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$500,000.00
Award Year:
1989
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
6838
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Charles River Analytics Inc.
55 Wheeler St, Cambridge, MA, 02138
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Alper K Caglayan
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
THE MAJOR DEFICIENCIES IN CURRENT REAL-TIME AUTOMATIC FAULT DIAGNOSIS APPLICATIONS FOR AEROSPACE SYSTEMS ARE THE HIGH RATE OF FALSE ALARMS, AND THE MAINTENANCE PROBLEMS CAUSED BYINTERMITTENT FAILURES. THESE DEFICIENCIES ARE DUE TO THE INACCURACY OF THE UNDERLYING NUMERICAL MODEL ON WHICH THE FAULT DIAGNOSIS ALGORITHM DESIGN IS BASED. THE AIM OF THIS STUDY IS TO DEMONSTRATE THE USE OF EXPERT SYSTEMS TECHNOLOGY IN IMPROVING THE PERFORMANCE OF CURRENT REAL-TIMEAVIONICS MONITORING AND FAULT DIAGNOSIS APPLICATIONS, AND INDESIGNING NEW RECONFIGURABLE FLIGHT CONTROL SYSTEMS. IN PARTICULAR, WE PROPOSE TO DEVELOP A RULE SET METHOD ALLOWINGA RULE-BASED SPECIFICATION OF THE DOMAIN KNOWLEDGE IN THESE APPLICATIONS, THE DEVELOPMENT OF AN EXPERT SYSTEM BASED ON THIS SPECIFICATION, AND THE INTEGRATION OF THIS COMPILED KNOWLEDGE INTO EXISTING REAL-TIME MONITORING AND DIAGNOSIS SOLUTIONS IMPLEMENTED IN CONVENTIONAL PROGRAMMING LANGUAGES.

* information listed above is at the time of submission.

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