METHOD AND DEVICE FOR RECOGNIZING A STATE OF A NOISE-GENERATING MACHINE TO BE STUDIED

摘要

The method involves automatically adapting a statistical base-classification model of acoustic characteristics based on acoustic characteristics of noises produced by a noise-generating object during starting of the object in regular maintenance time intervals or during changing of an acoustic surrounding field of the object, where the classification model is generated for a reference object. The condition of the noise-generating object is classified on the basis of the adapted statistical classification model. Independent claims are also included for the following: (1) a noise-generating object condition detecting device comprising a data processing unit (2) a computer program comprising a set of instructions for performing a method for detecting condition of a noise-generating object.