Train bogie fault identification method based on biological information characteristics

Abstract

The invention discloses a train bogie fault identification method based on biological information characteristics, which comprises the following steps: obtaining a historical vibration signal of a train bogie, and preprocessing and converting the historical vibration signal into an artificial DNA sequence; obtaining all window sequences through a sliding window method, and selecting a feature sequence meeting a preset requirement from the window sequences; taking the contents of four bases in the artificial DNA sequence, the sequence length and the number of the characteristic sequences as gene characteristic vectors of the artificial DNA sequence; constructing a training sample by using the gene feature vector of the artificial DNA sequence, and training a corresponding LPBoost binary classifier for each fault type; therefore, during fault detection, inputting the corresponding gene feature vector into each LPBoost binary classifier, and determining the fault type of the train bogie to be detected through a voting method. According to the invention, the feature sequence causing each fault type is mined, so that accurate identification and classification of various fault types arerealized.

Description

technical field [0001] The invention relates to the field of fault identification, in particular to a method for identifying a train bogie fault based on biological information features. Background technique [0002] In recent years, with the rapid development of rail transportation technology such as high-speed railways, subways, and maglev trains, railway transportation has become the main mode of transportation for people in our country. Just because the status of railways in the national economy is so important, its safety has naturally become a major concern of the people. This issue is particularly important today as trains continue to increase rapidly. People pay more and more attention to the safety of train operation. In many rail vehicle systems, the bogie (running part) is one of the most core parts, and the monitoring of the running turntable of the bogie is the key point to ensure the safe operation of the train. In recent years, some train safety accidents c...

AI Technical Summary

Problems solved by technology

This is a relatively high-tech fault detection method in addition to visual inspection. The result is very intuitive and accurate, but it is easy to destroy the original running-in state, and it is not recommended to be widely used.

Images