Search Results

Diverse modeling information is needed for system modeling and simulation for the purposes of developing, testing and supporting intelligent layered software for planning/scheduling, monitoring, control and fault management for test articles in BIO-Plex. A framework of types of system management goals is used to provide perspective for integrated discussion of the diverse modeling and control approaches. This paper discusses model representations in the CONFIG discrete-event modeling and simulation tool, which are used to link diverse modeling styles, to support integrated use and reuse of diverse modeling information.

A hybrid discrete/continuous simulation tool, CONFIG, has been developed to support evaluation of the operability of life support systems. CONFIG simulates operations scenarios in which continuous change in system flows and pressures interacts with discrete events during system reconfigurations. In simulation, intelligent control software interacts dynamically with a model of the hardware system. CONFIG simulations have been used to evaluate control software and intelligent agents for automating life support systems operations. A CONFIG model of an advanced biological water recovery system has been developed to interact with intelligent control software that is being used in a water system test at NASA Johnson Space Center.