Diesel engine fault diagnosis method and device and storage medium

• Main Authors: BAI HUAJUN, JIA XISHENG, BAI YUNJIE, ZHAN XIANBIAO, WEN LIANG
• Format: Patent
• Language: Chinese; English
• Published: 10.01.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The embodiment of the invention provides a diesel engine fault diagnosis method and device and a storage medium. The method comprises the steps that vibration data of a diesel engine in multiple periods are collected; creating a first sample matrix based on the vibration data of the plurality of periods, the first sample matrix comprising a plurality of row vectors, each row vector comprising vibration data of at least one period; carrying out dimension reduction on the first sample matrix, and carrying out equalization on vibration data in the first sample matrix; determining a to-be-input sample based on the first sample matrix after dimensionality reduction and equalization; and conveying the to-be-input sample to a preset fault diagnosis model to obtain a fault diagnosis result. The technical scheme provided by the invention is used for solving the problem of low confidence coefficient of the diagnosis result of the diesel engine in the prior art. 本说明书实施例提供了一种柴油发动机故障诊断方法、装置和存储介质，所述方法包括：采集柴油机的多个周期的振动数据；基于所