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Theses and Dissertations

Engineering

1995

Expert systems (Computer science)

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An Architecture For Dynamic Meta-Level Process Control For Model-Based Troubleshooting, John E. Friskie Dec 1995

An Architecture For Dynamic Meta-Level Process Control For Model-Based Troubleshooting, John E. Friskie

Theses and Dissertations

There are numerous methods used for troubleshooting devices. Each method has certain domains, knowledge requirements, and assumptions required for it to perform well. However, oftentimes no one method by itself is sufficient to completely solve a troubleshooting problem. Therefore, an architecture is required to control the combined use of many problem solving methods. The combination of multiple problem solving methods makes the troubleshooting process more robust in terms of device domains that can be dealt with and quality of diagnoses produced. Troubleshooting has two tasks: diagnosis and problem resolution. This research provides an architecture that allows dynamic method selection during …


Exmis: An Expert System For The Autonomous Onboard Command System (Aocs), Kevin D. Benedict Dec 1995

Exmis: An Expert System For The Autonomous Onboard Command System (Aocs), Kevin D. Benedict

Theses and Dissertations

The primary objective of this study is the creation of a prototype expert system called EXMIS (EXpert MIssile System) that performs the flight termination logic sequence of the Autonomous Onboard Command System (AOCS). The AOCS is a proposed system that would take the "man-in-the-loop" out of the self-destruct decision making process and place the entire decision on the launch vehicle. Through the use of a six degree of freedom trajectory program called BOOST, simulated flight data for four different flight scenarios is obtained. The launch vehicle selected for the simulations is the Peacekeeper ICBM. EXMIS is developed using an expert …