Computer Science – Performance
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991asee.nasar....s&link_type=abstract
In its Research Reports: 1991 NASA/ASEE Summer Faculty Fellowship Program 4 p (SEE N92-15850 06-80)
Computer Science
Performance
Diagnosis, Expert Systems, Hubble Space Telescope, Nickel Hydrogen Batteries, Warning Systems, Computer Networks, Computer Systems Performance, Data Processing, Display Devices, Nickel Cadmium Batteries, Telemetry
Scientific paper
The Hubble Telescope Battery Testbed at MSFC uses the Nickel Cadmium (NiCd) Battery Expert System (NICBES-2) which supports the evaluation of performance of Hubble Telescope spacecraft batteries and provides alarm diagnosis and action advice. NICBES-2 provides a reasoning system along with a battery domain knowledge base to achieve this battery health management function. An effort is summarized which was used to modify NICBES-2 to accommodate Nickel Hydrogen (NiH2) battery environment now in MSFC testbed. The NICBES-2 is implemented on a Sun Microsystem and is written in SunOS C and Quintus Prolog. The system now operates in a multitasking environment. NICBES-2 spawns three processes: serial port process (SPP); data handler process (DHP); and the expert system process (ESP) in order to process the telemetry data and provide the status and action advice. NICBES-2 performs orbit data gathering, data evaluation, alarm diagnosis and action advice and status and history display functions. The adaptation of NICBES-2 to work with NiH2 battery environment required modification to all of the three component processes.
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