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Reliability Evaluation Method of Multi-level Condition Monitoring Data Fusion

A monitoring data, multi-level technology, applied in electrical digital data processing, special data processing applications, instruments, etc.

Inactive Publication Date: 2016-08-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] So far, the multi-state system dynamic reliability assessment technology that integrates multi-level condition monitoring information and considers the error of condition monitoring data or information is still blank at home and abroad.

Method used

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  • Reliability Evaluation Method of Multi-level Condition Monitoring Data Fusion
  • Reliability Evaluation Method of Multi-level Condition Monitoring Data Fusion
  • Reliability Evaluation Method of Multi-level Condition Monitoring Data Fusion

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Embodiment Construction

[0058] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0059] Such as figure 1 As shown, the reliability evaluation method of multi-level state monitoring data fusion of the present invention comprises the following steps:

[0060] According to the degradation law of the system and unit, determine the state of the system and unit during the degradation process, and clarify the unit state combination corresponding to each state of the system; collect the condition monitoring data or information of the system and unit during service; according to the multi-level condition monitoring data or Information updates the current state probability of the units in the system; dynamically estimates the reliability of the multi-state system during the remaining service period.

[0061] The described engineering system has multiple states, so it is called a multi-state system. It is composed of multiple units, ...

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Abstract

The invention discloses a reliability evaluation method for multi-level state monitoring data fusion, which specifically includes: according to the system and unit degradation law, determining the state of the system and the unit during the degradation process, and specifying the unit state combination corresponding to each state of the system; collecting system and the state monitoring data or information of the unit during service; update the current state probability of the unit in the system according to the multi-level state monitoring data or information; dynamically estimate the reliability of the multi-state system in the remaining service period. The method of the present invention combines the state monitoring data or information of the system level and the unit level in the multi-state system, and combines the logical combination relationship of the system and the unit state degradation law, and determines the current state of each unit in the multi-state system by constructing a Bayesian recursive model. state probability, so as to predict the future state and reliability of the system; at the same time, the method of the present invention considers the error of state monitoring data or information, making the method more general.

Description

technical field [0001] The invention belongs to the technical field of reliability evaluation of complex systems, and in particular relates to a multi-state system dynamic reliability evaluation method based on multi-level state monitoring data fusion. Background technique [0002] The rapid progress of modern science and technology has made the equipment have more complex structures and more powerful functions. These equipments involve various fields of social production. Whether the equipment can continue to work efficiently, safely and stably has a great impact on daily life, enterprise production and even national security. play a vital role. Therefore, reliability engineering is an indispensable engineering technology for modern industry, especially for high-precision and high-reliability manufacturing industries. As one of the important techniques of reliability engineering, the importance of reliability evaluation is self-evident. A good reliability evaluation metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 刘宇陈初杰张凡李彦锋杨圆鉴黄洪钟左明健
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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