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Advances in Discrete-Event Simulation for MSL Command ValidationIn the last five years, the discrete event simulator, SEQuence GENerator (SEQGEN), developed at the Jet Propulsion Laboratory to plan deep-space missions, has greatly increased uplink operations capacity to deal with increasingly complicated missions. In this paper, we describe how the Mars Science Laboratory (MSL) project makes full use of an interpreted environment to simulate change in more than fifty thousand flight software parameters and conditional command sequences to predict the result of executing a conditional branch in a command sequence, and enable the ability to warn users whenever one or more simulated spacecraft states change in an unexpected manner. Using these new SEQGEN features, operators plan more activities in one sol than ever before.
Document ID
20150008071
Document Type
Conference Paper
External Source(s)
Authors
Patrikalakis, Alexander (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
O'Reilly, Taifun (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 13, 2015
Publication Date
October 30, 2013
Subject Category
Computer Programming and Software
Meeting Information
2013 IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications(Delft)
Distribution Limits
Public
Copyright
Other
Keywords
discrete event simulation
sequencing
activity planning
Spacecraft
resource management
operations