A method for monitoring a service state of a switch rail based on feature fusion includes: mounting an ultrasonic guided wave monitoring apparatus on the switch rail to perform online defect identification and simulation of the switch rail, and establishing a baseline signal library, where the ultrasonic guided wave monitoring apparatus generates a guided wave signal propagating along the switch rail and receives an echo signal of the guided wave signal; performing feature extraction; extracting a healthy feature vector, and nondimensionalizing; selecting a defect-sensitive feature, and acquiring, by a BPSO algorithm, a best feature subset; training an LS-SVM through the best feature subset by a cross-validation method to acquire an automatic online defect identification model of the switch rail based on the LS-SVM; and monitoring the switch rail by the automatic online defect identification model of the switch rail based on the LS-SVM.
Method for Monitoring Service State of Switch Rail Based on Feature Fusion
2023-06-08
Patent
Elektronische Ressource
Englisch
TURNOUT SWITCH RAIL DAMAGE STATE MONITORING METHOD BASED ON FEATURE FUSION
Europäisches Patentamt | 2022
|Switch rail crawling monitoring system and switch rail crawling monitoring method
Europäisches Patentamt | 2020
|RAIL STATE MONITORING DEVICE AND RAIL STATE MONITORING METHOD
Europäisches Patentamt | 2023
|RAIL STATE MONITORING APPARATUS AND RAIL STATE MONITORING METHOD
Europäisches Patentamt | 2023
|RAIL STATE MONITORING APPARATUS AND RAIL STATE MONITORING METHOD
Europäisches Patentamt | 2024
|