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Re-scheduling as a tool for the power management on board a spacecraftThe scheduling of events on board a spacecraft is based on forecast energy levels. The real time values of energy may not coincide with the forecast values; consequently, a dynamic revising to the allocation of power is needed. The re-scheduling is also needed for other reasons on board a spacecraft like the addition of new event which must be scheduled, or a failure of an event due to many different contingencies. This need of rescheduling is very important to the survivability of the spacecraft. In this presentation, a re-scheduling tool will be presented as a part of an overall scheme for the power management on board a spacecraft from the allocation of energy point of view. The overall scheme is based on the optimal use of energy available on board a spacecraft using expert systems combined with linear optimization techniques. The system will be able to schedule maximum number of events utilizing most energy available. The outcome is more events scheduled to share the operation cost of that spacecraft. The system will also be able to re-schedule in case of a contingency with minimal time and minimal disturbance of the original schedule. The end product is a fully integrated planning system capable of producing the right decisions in short time with less human error. The overall system will be presented with the re-scheduling algorithm discussed in detail, then the tests and results will be presented for validations.
Document ID
19960000396
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Albasheer, Omar
(Howard Univ. Washington, DC, United States)
Momoh, James A.
(Howard Univ. Washington, DC, United States)
Date Acquired
September 6, 2013
Publication Date
August 1, 1995
Publication Information
Publication: NASA. Lewis Research Center, HBCUs Research Conference Agenda and Abstracts
Subject Category
Administration And Management
Accession Number
96N10396
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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