Vibration and noise detection method and device of automobile air conditioner and computer equipment

The invention provides a vibration and noise detection method and device of an automobile air conditioner and computer equipment. The method comprises the steps of acquiring a current sampling signal of a detection target; preprocessing the current sampling signal to obtain a preprocessed signal; pe...

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Hauptverfasser: WEI WANZHU, FENG FANGPING, WANG JIANGBO, LU YUWEN, HE XIANYAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a vibration and noise detection method and device of an automobile air conditioner and computer equipment. The method comprises the steps of acquiring a current sampling signal of a detection target; preprocessing the current sampling signal to obtain a preprocessed signal; performing Fourier transform on the preprocessed signal to obtain a target frequency spectrum; and performing feature extraction on a target frequency spectrum to obtain a detection result matched with the current sampling signal. The method comprises the following steps: acquiring a noise signal or a vibration signal of a detection target to obtain a current sampling signal, carrying out preprocessing and Fourier transform on the sampling signal to obtain a target frequency spectrum corresponding to a time domain sampling signal, and then carrying out feature extraction on the target frequency spectrum; and acquiring relation between the air conditioner vibration parameters and the motor rotating speed, the air cond