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.
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[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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