Information transferring model based fault tracing method for process industrial complex electromechanical system

A technology of information transmission and electromechanical systems, applied in manufacturing computing systems, electrical digital data processing, special data processing applications, etc.

Active Publication Date: 2017-12-01
XI AN JIAOTONG UNIV
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Problems solved by technology

[0005] In order to solve the problems in the prior art, the present invention discloses a fault tracing method for complex electromechanical systems in the process industry based on an information transfer model, which ef

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  • Information transferring model based fault tracing method for process industrial complex electromechanical system
  • Information transferring model based fault tracing method for process industrial complex electromechanical system
  • Information transferring model based fault tracing method for process industrial complex electromechanical system

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Embodiment Construction

[0061] The present invention will be further explained below in conjunction with specific embodiments and accompanying drawings.

[0062] see figure 1 , the present invention specifically comprises the following steps:

[0063] 1) Preparatory steps for fault tracing. Collect the historical monitoring data of the operation status of complex electromechanical systems in the process industry, and establish high-dimensional original data sets; define the basic structure of the information transfer model of complex electromechanical systems according to the original data sets;

[0064] 1.1) Raw data collection. For complex electromechanical systems, n sensors extract data from historical monitoring data at the same sampling frequency, step 1) obtain an n-dimensional monitoring time series matrix D:

[0065]

[0066] where: X i is the i-th sample point in the matrix; d i,j is the jth attribute value in the ith sample point. Each column in the matrix is ​​a time series of ob...

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Abstract

The invention discloses an information transferring model based fault tracing method for process industrial complex electromechanical system. On the basis of mass high-dimensional system operating state monitoring data, by adopting a data analysis method and taking an information transferring relation among different monitoring variables as a measure of a system information model coupling relation, a system fault process recognition method and a tracing method are provided in comprehensive consideration of influences of process industrial feedback control on a system fault tracing process. According to the method, a unique root event of a system fault can be traced from any abnormal information monitoring points, and the fault tracing process is independent of system physical topology priori knowledge. The processing process can be partially and directly applied to information modeling of the process industrial complex electromechanical system, tracing of system fault causes can be realized, the digital monitoring level of enterprises is raised, and scientific maintenance is facilitated.

Description

technical field [0001] The invention belongs to the field of data-driven system fault traceability, and relates to a fault traceability method for an industrial production system, in particular to a fault traceability method for a complex electromechanical system in a process industry based on an information transfer model. Background technique [0002] The process industry production system represented by energy and heavy chemical industry is a distributed complex electromechanical system composed of many discrete large-scale power machinery equipment and chemical equipment coupled through multi-media networks such as energy, fluid, electricity, and control signals. The features of high precision, complex process, and fine control requirements, and the coupling and cooperation between various functions in the system. The failure of any component in any functional unit will lead to the failure of the functional component, which will be propagated and amplified to other funct...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06Q10/00G06Q50/04
CPCG06F16/2237G06F16/245G06F16/2474G06Q10/20G06Q50/04Y02P90/30
Inventor 王荣喜高智勇高建民亢嘉妮梁艳杰
Owner XI AN JIAOTONG UNIV
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