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<p>This article describes work at NASA's Johnson Space Center on developing human-centered, intelligent control software. The purpose of these intelligent systems is to control crew life support systems in a manner that operates autonomously much of the time, yet supports human interaction and intervention when needed. The authors describe two control systems developed and fielded at JSC: an air regeneration system used during a 90-day manned test and a water recovery system used during more than a year of ground-based operations. They discuss the lessons learned in human-centered computing when developing and deploying this control software. They also describe recent work on an architecture for distributed human interaction with semiautonomous control software that was derived from their experience with these systems.</p>
NASA, human-centered computing, space missions, lunar rover, Johnson Space Center, life support

D. Kortenkamp, P. Bonasso, C. Thronesbery, C. Martin and D. Schreckenghost, "Intelligent Control of Life Support for Space Missions," in IEEE Intelligent Systems, vol. 17, no. , pp. 24-31, 2002.
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