Health evaluation method for train bearing

Abstract

This disclosure provide a health evaluation method for train bearings. The method includes obtaining a bearing temperature data set collected from a plurality of bearings of the train during a trip and ambient temperature data set around the train during the trip. The method also includes performing feature extraction on the bearing temperature data set to generate a first set of temperature features and calculating a difference between each of the bearing temperature data set and corresponding ambient temperature data of the ambient temperature data set to generate a first set of temperature difference values. The method also includes performing the feature extraction on the first set of temperature difference values to generate a second set of temperature features. The method also includes generating an evaluation result of the health state of each bearing based on at least one of the first or second sets of temperature features.

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