Mobile crushing and screening machine power-on self-test method and equipment based on wavelet packet and storage medium

The invention discloses a mobile crushing and screening machine power-on self-test method based on a wavelet packet. The method comprises the following steps: acquiring a vibration acceleration signal within a preset time period in a stable operation to-be-fed state after the mobile crushing and scr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DING YUEJIN, XU HAIDONG, ZHAO ZHENFEI, LU XIANGYONG, YANG XINMING, ZHANG YI, LU MAOMAO, ZHANG JIAKUI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a mobile crushing and screening machine power-on self-test method based on a wavelet packet. The method comprises the following steps: acquiring a vibration acceleration signal within a preset time period in a stable operation to-be-fed state after the mobile crushing and screening machine is powered on; calculating an energy value of the vibration acceleration signal, and if the energy value exceeds a set value; if yes, entering a depth self-inspection mode, performing N-layer wavelet packet decomposition on the vibration acceleration signal to obtain a vibration acceleration decomposition signal, establishing an energy matrix and an error matrix, and detecting a frequency band where a fault occurs; and determining the frequency band where the fault occurs, and storing the energy matrix into a fault library. The fault condition is judged by acquiring the vibration acceleration signal of the mobile crushing and screening machine and calculating the energy value of the vibration acceler