High-voltage circuit breaker mechanical fault diagnosis method based on multi-data fusion technology

The invention discloses a high-voltage circuit breaker mechanical fault diagnosis method based on a multi-data fusion technology. A plurality of sensors are mounted on a high-voltage circuit breaker, fault information is acquired by utilizing a data processing algorithm, and by combining typical fault signal feature vectors stored in a fault database, membership degrees that a circuit breaker state belongs to various different typical faults are determined; by introducing a generalized information entropy concept, evidence reliability of each sensor is obtained so as to obtain weighted evidences; and finally, a D-S evidence theory combination rule is adopted to complete fault fusion so as to obtain a decision diagnosis result. According to the high-voltage circuit breaker mechanical fault diagnosis method disclosed by the invention, a weighted evidence theory and the multi-data fusion technology are adopted, not only a result of obtaining each fault membership degree is considered, but also reliability of eac