Driving sound diagnostic system, driving sound diagnosis method and machine learning device of drive sound diagnosis system

摘要

A driving sound diagnostic system (10) is a driving sound detecting section (11) for detecting the driving sound of an actuator or a driven machine, a driving position of the actuator, an operating state detecting section (12) for acquiring a force generated by driving speed or driving in a time series, and a series of sound spectrum time-series acquisition sections (15) comprises a feature point extraction section (16) and a factor determination section (18).The time series spectral acquisition section outputs a time series spectrum corresponding to the frequency and time of the frequency spectrum calculated from the time series data of the driving sound.The feature point extractor outputs characteristic point data in which the frequency of the characteristic point in the time series spectrum, the driving position of the actuator at the time and the time, the driving speed or the force generated by the driving are combined.The factor determining section compares the numerical range of the characteristic point or time included in the characteristic points with each other for each phenomenon or the combination of the operation data at the time and the multidimensional data with the numerical value of the characteristic point data to determine the generation factor of the driving sound.