Railway Wagon Wheelset Fault Diagnosis Method Based on DBN

Wheelset is a crucial part of the operation and braking part of railway wagons, and its failure will affect the operation safety of the entire railway system. And fault diagnosis is an important basis for realizing railway scientific maintenance decisions. Learn the method of deep belief network (DBN) to process and diagnose fault data of freighters. The paper uses dynamic factors to optimize the update mechanism of particle velocity, proposes an active factor controlled particle swarm algorithm (APSO), and uses the APSO algorithm to optimize the selection of DBN weights to form a round-pair fault detection algorithm (APSO-DBN) This speeds up DBN training and improves the overall performance of the diagnostic model. The experimental steps and the effectiveness of the method are verified by experiments.