The invention discloses a motor abnormal
sound detection method, a motor abnormal
sound detection system and a motor abnormal sound
verification method. The motor abnormal
sound detection method comprises the steps of collecting an operation sound sample of a motor at a stepped variable rotating speed through a
microphone in a sound insulation environment; performing
signal cross analysis on multiple groups of normal samples, and automatically generating a reference sound gear and a characteristic parameter threshold value; during on-line detection, sound characteristics of a motor to be detected are extracted and are subjected to double cross comparison with a reference sound gear, and whether abnormal sound exists or not is comprehensively judged by combining multi-
sensor fusion data with a combined rotating speed analysis result. The
system comprises a customized soundproof box, a shockproof
microphone array, a multi-type motor driving control module, a multi-sensor synchronous acquisition module and an integrated analysis
processing platform. According to the invention, the problems of
signal attenuation, insufficient samples, analysis
distortion, tedious
system operation and the like in traditional detection are solved, and high-precision, high-adaptability and integrated motor abnormal
noise online detection is realized.