Diagnosing battery behavior with an expert system in PROLOGPower for the Hubble Space Telescope comes from a system of 20 solar panel assemblies (SPAs) and six nickel-cadmium batteries. The HST battery system is simulated by the HST Electrical Power System (EPS) testbed at Marshall Space Flight Center. The Nickel Cadmium Battery Expert System (NICBES) is being used to diagnose faults of the testbed system, evaluate battery status and provide decision support for the engineer. Extensive telemetry of system operating conditions is relayed through a DEC LSI-11. A BASIC program running on a PC monitors the flow of data, figures cell divergence and recharge ratio, and stores these values, along with other selected data, for use by the expert system.
Document ID
19870030858
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kirkwood, N. (Martin Marietta Corp. Denver, CO, United States)
Weeks, D. J. (NASA Marshall Space Flight Center Huntsville, AL, United States)