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Ball mill cylinder vibration signal joint denoising method and device and storage medium

A vibration signal and joint denoising technology, applied in the field of signal processing, can solve the problems of loss of useful information and limitations of the denoising process.

Pending Publication Date: 2019-12-27
JIANGXI UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a ball mill cylinder vibration signal joint denoising method, device and storage medium to solve the problem of the nonlinear and non-stationary vibration signal denoising process of the ball mill cylinder produced by the existing denoising method There are limitations and the problem of losing useful information

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  • Ball mill cylinder vibration signal joint denoising method and device and storage medium
  • Ball mill cylinder vibration signal joint denoising method and device and storage medium

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Embodiment Construction

[0043] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0044] In the embodiments of the present invention, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, commodity or apparatus comprising a series of elements includes not only those elements, but also Include other elements not expressly listed, or also include elements inherent in such process, method, commodity or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0045] Such as figure 1 As ...

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Abstract

The embodiment of the invention provides a ball mill cylinder vibration signal combined denoising method and device and a storage medium, and belongs to the technical field of signal processing. The method comprises the following steps: acquiring a vibration signal of a ball mill cylinder and decomposing the vibration signal into a plurality of intrinsic mode components; dividing the plurality ofintrinsic mode components into high-frequency intrinsic mode components and low-frequency intrinsic mode components according to a continuous mean square error criterion; denoising the high-frequencyintrinsic mode component according to a wavelet threshold denoising method; and reconstructing the denoised high-frequency intrinsic mode component and the denoised low-frequency intrinsic mode component to obtain a denoised vibration signal. According to the invention, in the denoising process, only the high-frequency intrinsic mode component containing much noise is denoised without aiming at the whole signal; the defect that the CEEMDAN algorithm loses effective information while the wavelet threshold denoising method has defects in nonlinear signal processing is effectively overcome, and useful features in the vibration signals are well reserved while the purpose of noise elimination is achieved.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a method for joint denoising of vibration signals of a ball mill cylinder, a joint denoising device for vibration signals of a ball mill cylinder, and a computer-readable storage medium. Background technique [0002] Ball mill is a commonly used process equipment in the field of mining and metallurgy. It rotates by itself to drive steel balls to impact and grind to complete the grinding task. The main factor affecting the grinding efficiency in the grinding operation is the load state of the ball mill, but the grinding process has comprehensive complexity, resulting in accurate and effective identification of the load state of the ball mill, which has always been a difficult problem in the grinding process. Since the characteristic parameters of the vibration signal of the ball mill cylinder contain rich load information, it is usually selected as the object of load fea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06F2218/06
Inventor 蔡改贫宣律伟谢云韩李珂胡显能
Owner JIANGXI UNIV OF SCI & TECH
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