发明名称 |
BAYESIAN APPROACH TO IDENTIFYING SUB-MODULE FAILURE |
摘要 |
A diagnostic device identifies failed sub-modules within a larger system based on error codes received from the system. The device stores a likelihood matrix that correlates each sub-module with each possible error code and maintains a likelihood value corresponding to the probability of a failed sub-module generating a corresponding error code and stores a prior probability of failure associated with each sub-module based on prior observational data. In response to received error codes, the device calculates a posterior probability of failure for each of the plurality of sub-modules based on a product of the likelihood values corresponding to the received error codes and the prior probability of failure associated with each sub-module. Based on the calculated posterior probability, the device identifies the sub-module with the highest posterior probability of failure as the failed sub-module.
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申请公布号 |
US2011231703(A1) |
申请公布日期 |
2011.09.22 |
申请号 |
US20100727437 |
申请日期 |
2010.03.19 |
申请人 |
HAMILTON SUNDSTRAND CORPORATION |
发明人 |
PARGELLIS ANDREW;SUTIN BRIAN M. |
分类号 |
G06F11/07 |
主分类号 |
G06F11/07 |
代理机构 |
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代理人 |
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