Method and system for diagnosing equipment faults

Abstract

The invention relates to a method and system for diagnosing equipment faults. The diagnostic method includes: obtaining a diagnostic model of the device; obtaining component parameters of each component in the device to be detected according to the diagnostic model; obtaining a fault model matrix corresponding to the device to be detected; obtaining vibration data of the device to be detected, including each component in the Vibration data at multiple detection points; for the i-th component, filter the vibration data of the component according to the fault code information of the component to obtain the data screening table corresponding to the component; use the feature parameter extraction rules of the component to filter the data of the component Extract the table to generate the feature parameter extraction table of the component; use the fault diagnosis rules of the component to perform logical operations and arithmetic operations on the data in the feature parameter extraction table of the component to determine the corresponding failure mode and failure level of the component; get the equipment to be tested Fault detection results. The invention can realize the fault diagnosis of general equipment and improve the accuracy of fault detection at the same time.

Description

technical field [0001] The invention relates to the field of equipment maintenance, in particular to a method and system for diagnosing equipment failures. Background technique [0002] With the continuous improvement of the level of technological development and the upgrading of production and manufacturing needs, various production equipment continue to develop in the direction of large-scale, automation, and intelligence. Especially in the industrial field of continuous production, the requirements for equipment reliability are increasing. high. Once the equipment breaks down, the production line will shut down, causing heavy economic losses, and equipment accidents will occur, endangering equipment and personal safety. Therefore, more and more industries and enterprises pay more and more attention to the operation status of equipment, and gradually introduce various status monitoring systems to realize status monitoring and fault prediction of important equipment, scien...

AI Technical Summary

Problems solved by technology

The reproducibility and portability of its logic and rules are poor, and it is only applicable to this type of machine, but cannot diagnose other types of machines. The universal applicability is poor, and the use cost is high for users

In the industrial field, all kinds of general-purpose machinery, such as various pumps, fans, compressors, motors, gearboxes and other equipment, are widely used. This type of diagnostic system is obviously not suitable for automatic diagnosis of these general-purpose machinery.

On the other hand, the diagnostic logic of this type of system is often built into the software through the program code, with no or a small amount of maintenance functions for the logic, and can only hope for the upgrade of the entire software program

The relevant rules are closed, and the formation of the rules often requires a certain computer programming ability, and some codes need to be written, and it is difficult to establish the rules only by business personnel or diagnostic experts

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