Combined model-based approach and data driven prediction for troubleshooting faults in physical systems
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United States of America Patent
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Apr 14, 2020
Grant Date -
Jun 21, 2018
app pub date -
Nov 27, 2017
filing date -
Nov 28, 2016
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Abstract
A method for diagnosing and troubleshooting failures of components of a physical system with low troubleshooting cost, according to which for each component in the system, a Model-Based Diagnosis (MBD) is used for computing the probability of causing a system failure, based on currently observed system behavior or on knowledge about the system's structure. Then the probability of causing a system failure is computed, based on its age and its survival curves. Then, it is determined whether a faulty component C should be fixed or replaced by minimizing future troubleshooting costs, being the costs of the process of diagnosing and repairing an observed failure.
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