Bayesian network-based fault detection method
A Bayesian network and fault detection technology, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problem of low efficiency of fault detection in the battery management system, and achieve the effect of simplifying the process and improving efficiency
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[0028] The Bayesian network-based fault detection method described in the embodiment of the present invention is applied to a battery management system, such as figure 1 As shown, the method includes the following steps:
[0029] S1. Establish a Bayesian network topology structure with the correspondence between conventional fault characterization and fault cause;
[0030] S2. Train the Bayesian network topology according to the maintenance records of the battery management system to obtain conditional probabilities;
[0031] S3. According to the operating data of the battery management system, perform Bayesian network topology parameter learning to obtain the prior probability of fault characterization;
[0032] S4. After a certain fault characterization occurs in the battery management system, the Bayesian network topology structure calculates the posterior probability of each corresponding fault cause according to the prior probability and conditional probability of ...
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