Automatic generation of baysian diagnostics from fault trees
First Claim
1. A method of conversion of at least one of satellite and spacecraft fault trees to Bayesian networks for assisting in system reliability, failure analysis and diagnostics comprising the steps of:
- creating a structure of a Bayesian network using information from at least one of a satellite and a spacecraft fault tree;
creating parameters of the Bayesian network using information from the fault tree;
obtaining information about observation nodes for the Bayesian network from a list of observations that augments information contained in the fault tree; and
inserting the observation nodes into the Bayesian network.
1 Assignment
0 Petitions
Accused Products
Abstract
Fault trees are automatically converted to Bayesian networks for assisting in system reliability, failure analysis and diagnostics by using information from the fault tree structure to create the Bayesian network structure, creating parameters of the Bayesian network using information from the fault tree, obtaining information about observation nodes for the Bayesian network from a list of observations that augments information contained in the fault tree, and inserting the observation nodes into the Bayesian network. The fault tree is pre-processed into an intermediate format prior to conversion that may include adding reliability values from a separate text document when the fault tree is in such format that requires it.
26 Citations
14 Claims
-
1. A method of conversion of at least one of satellite and spacecraft fault trees to Bayesian networks for assisting in system reliability, failure analysis and diagnostics comprising the steps of:
-
creating a structure of a Bayesian network using information from at least one of a satellite and a spacecraft fault tree; creating parameters of the Bayesian network using information from the fault tree; obtaining information about observation nodes for the Bayesian network from a list of observations that augments information contained in the fault tree; and inserting the observation nodes into the Bayesian network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A system for performing diagnostic proceed urea comprising:
-
means for creatine a structure of a Bayesian network using information from at least one of a spacecraft and a satellite fault tree; means for creating parameters of the Bayesian network using information from the fault tree operable for working in conjunction with the means for creating a structure of a Bayesian network; means for obtaining information about observation nodes for the Bayesian network from a list of observations that augments information contained in the fault tree operable for working in conjunction with the means for creating a structure of a Bayesian network; and means for inserting the observation nodes into the Bayesian network operable for working in conjunction with the means for creating a structure of a Bayesian network. - View Dependent Claims (14)
-
Specification