PVDaCS - A prototype knowledge-based expert system for certification of spacecraft dataOn-line data management techniques to certify spacecraft information are mandated by increasing telemetry rates. Knowledge-based expert systems offer the ability to certify data electronically without the need for time-consuming human interaction. Issues of automatic certification are explored by designing a knowledge-based expert system to certify data from a scientific instrument, the Orbiter Ultraviolet Spectrometer, on an operating NASA planetary spacecraft, Pioneer Venus. The resulting rule-based system, called PVDaCS (Pioneer Venus Data Certification System), is a functional prototype demonstrating the concepts of a larger system design. A key element of the system design is the representation of an expert's knowledge through the usage of well ordered sequences. PVDaCS produces a certification value derived from expert knowledge and an analysis of the instrument's operation. Results of system performance are presented.
Document ID
19900054124
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Wharton, Cathleen (Colorado Univ. Boulder, CO, United States)
Shiroma, Patricia J. (Colorado Univ. Boulder, CO, United States)
Simmons, Karen E. (Colorado, University Boulder, United States)