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Method and system for predicting remaining life of equipment

A forecasting method and equipment technology, applied in forecasting, computer-aided design, design optimization/simulation, etc., can solve problems such as inability to quantify remaining life, inability to apply maintenance decision-making and spare parts ordering, etc., to ensure task completion efficiency and reduce failure risk. , the effect of improving the prediction accuracy

Active Publication Date: 2020-12-22
ROCKET FORCE UNIV OF ENG
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AI Technical Summary

Problems solved by technology

However, the method based on DBN can only obtain the predicted value of the remaining life, but cannot quantify the remaining life, and cannot be applied to the theory of maintenance decision-making and spare parts ordering

Method used

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  • Method and system for predicting remaining life of equipment
  • Method and system for predicting remaining life of equipment
  • Method and system for predicting remaining life of equipment

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Embodiment Construction

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] figure 1 It is a schematic flow chart of the method for predicting the remaining life of the equipment of the present invention. Such as figure 1 As shown, the forecasting method includes the following st...

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Abstract

The invention discloses a method and system for predicting the remaining life of equipment. The method includes: obtaining the historical operation data of the equipment to be predicted; using the historical operation data to train the deep belief network to obtain the trained deep belief network; obtaining the current operation data of the equipment to be predicted; Feature extraction is performed on the running data to obtain a feature set; a local linear embedding operation is performed on the feature set to obtain the health factor; based on the diffusion process, the relationship model between the health factor and time is obtained; according to the relationship model between the health factor and time, the remaining Life is predicted; according to the remaining life of the equipment to be predicted, the probability density distribution of the remaining life of the equipment to be predicted is determined. On the basis of being applicable to mass data analysis, the present invention can realize quantitative prediction of remaining life.

Description

technical field [0001] The invention relates to the technical field of engineering reliability analysis, in particular to a method and system for predicting the remaining life of equipment. Background technique [0002] With the advancement of Internet of Things technology, engineering equipment has gradually become more complex, automated and intelligent, and at the same time, more stringent requirements have been put forward for the safety and reliability of equipment. Remaining life prediction, as an important part of prediction and health management, mainly uses condition monitoring information and other historical information during the equipment life cycle to analyze and determine the normal operation time of equipment, providing reliable technical support for maintenance decisions. [0003] Remaining life prediction has achieved a large number of theoretical research results in the academic field. Existing RUL prediction methods can be divided into failure mechanism-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q10/04G06Q10/06G06K9/62G06F119/04
CPCG06Q10/04G06Q10/0639G06F18/214
Inventor 胡昌华裴洪司小胜李天梅张建勋庞哲楠
Owner ROCKET FORCE UNIV OF ENG
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