Download Autonomous and Autonomic Systems: With Applications to NASA by Walt Truszkowski, Harold Hallock, Christopher Rouff, Jay PDF

By Walt Truszkowski, Harold Hallock, Christopher Rouff, Jay Karlin, James Rash, Michael Hinchey, Roy Sterritt

This publication presents an in-depth dialogue of self sufficient and autonomic platforms, their interdependencies, variations and similarities. present and pending concerns in those evermore more and more vital topics are highlighted and mentioned. thoughts, principles and stories are explored on the subject of real-life NASA structures in spacecraft keep watch over and within the exploration area.

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Extra resources for Autonomous and Autonomic Systems: With Applications to NASA Intelligent Spacecraft Operations and Exploration Systems

Sample text

Since both sensors and actuators have complex failure modes, robust systems should keep long-term information on the status of internal systems and develop alternative plans accounting for known failures. The unexpected will happen, so robust systems should actively detect failures, attempt to determine their nature, and plan alternative strategies to achieve mission objectives. Some systems reason on potential failures during planning in an attempt to minimize the effects that possible sensor or actuator failures could have on the ultimate outcome.

They are highly mission/SI specific activities and may include functionality such as optical telescope assembly (OTA) calibration and management and SI direction of spacecraft operation (such as pointing adjustment directives). These activities may be performed in immediate association with ongoing science, or may be performed as background tasks disjoint from a current observation. Although executed onboard, much (if not all) of the supporting calculations may be done on the ground and the results uplinked to the flight computer in the form of tables or commands.

4 Science Support Activity Execution Science support activities are those that are specifically performed to ensure the success of the science observation, but are not science observations themselves, nor are they routine housekeeping activities pertaining to maintenance of a viable observing platform. They are highly mission/SI specific activities and may include functionality such as optical telescope assembly (OTA) calibration and management and SI direction of spacecraft operation (such as pointing adjustment directives).

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