Monitoring real-time navigation processes using the automated reasoning tool (ART)An expert system is described for monitoring and controlling navigation processes in real-time. The ART-based system features data-driven computation, accommodation of synchronous and asynchronous data, temporal modeling for individual time intervals and chains of time intervals, and hypothetical reasoning capabilities that consider alternative interpretations of the state of navigation processes. The concept is illustrated in terms of the NAVEX system for monitoring and controlling the high speed ground navigation console for Mission Control at Johnson Space Center. The reasoning processes are outlined, including techniques used to consider alternative data interpretations. Installation of the system has permitted using a single operator, instead of three, to monitor the ascent and entry phases of a Shuttle mission.
Document ID
19870024946
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Maletz, M. C. (Inference Corp. Los Angeles, CA, United States)
Culbert, C. J. (NASA Johnson Space Center Houston, TX, United States)