An Adaptive Fault Diagnosis Method Based on One-Dimensional Convolutional Neural Network

A convolutional neural network and fault diagnosis technology, applied in the fault diagnosis of parts and mechanical equipment, can solve problems such as loss, achieve the effect of small model, save diagnosis time, and save labor costs

Active Publication Date: 2022-05-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

When many devices are running, a second late diagnosis will bring incalculable losses. Every second must be counted, and the operating status of the diagnostic devices can be detected and diagnosed in a timely and accurate manner.

Method used

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  • An Adaptive Fault Diagnosis Method Based on One-Dimensional Convolutional Neural Network
  • An Adaptive Fault Diagnosis Method Based on One-Dimensional Convolutional Neural Network
  • An Adaptive Fault Diagnosis Method Based on One-Dimensional Convolutional Neural Network

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Embodiment Construction

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and in combination with specific embodiments. It should be understood that the examples are only for illustration and not limitation of the present invention.

[0027] Such as figure 1 As shown, the present invention provides a kind of equipment, parts fault diagnosis method based on one-dimensional convolutional neural network, comprising the following steps:

[0028] Table 1 Rolling bearing fault type table

[0029]

[0030] Step 1. Collect the historical data of vibration acceleration signals under various operating states to diagnose faults through the acceleration sensor, and then perform the same adaptive filtering and normalization processing on the total sequence data of various faults to ensure the same distribution of data samples, and then Segment the total sequence data. In this embodiment, fault classification is carried out for different fault ...

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Abstract

The invention discloses an adaptive fault diagnosis method based on a one-dimensional convolutional neural network, which uses a one-dimensional convolutional neural network as the main model structure, directly inputs a one-dimensional time series signal, and can immediately output a high-precision diagnosis result. It is more convenient and efficient than the traditional way of manually extracting features for diagnosis, and requires less professional knowledge and experience for diagnostic personnel; at the same time, compared with fault diagnosis methods based on other neural network structures, the one-dimensional convolutional neural network model maintains diagnostic accuracy. At the same time, the model is simpler and the calculation is faster, which can provide a good guarantee for real-time fault diagnosis. As a real-time and rapid self-adaptive fault diagnosis method, the present invention can calmly deal with the diversity of fault types, and can be widely used in the fields of machinery manufacturing, aerospace, electrical, metallurgy and the like.

Description

technical field [0001] The invention belongs to the technical field of fault diagnosis and computer artificial intelligence, in particular to a method for fault diagnosis of mechanical equipment and parts based on artificial intelligence convolutional neural network (CNN). Background technique [0002] Existing mechanical equipment and parts are developing in the direction of high speed, high efficiency, and precision. However, in actual operation, the working conditions are complicated, and it is often necessary to analyze and troubleshoot equipment performance and potential faults to achieve early detection, Early detection, early avoidance. Among them, key components of mechanical equipment such as gears, bearings, compressor valves, and motors are often the key objects in the field of mechanical fault diagnosis and monitoring. In this field, traditional time-frequency analysis and other methods have achieved good results in small data environments and single-fault tasks...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F2218/08
Inventor 邵继业罗钟福
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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