Dynamic memory matrix construction method and system for chip production and related device
A memory matrix and construction method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as large amount of data, increased MSET model complexity, and influence on model prediction accuracy, so as to reduce complexity, The effect of reducing construction complexity, improving prediction accuracy and generalization ability
Active Publication Date: 2019-05-07
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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[0003] When using the MSET method to establish a fault early warning model, it is first necessary to use the historical observation vectors in the normal state of the equipment to construct a dynamic memory matrix. There are many historical observation vectors collected during operation, and the amount of data is large. If these historical observation vectors are directly used to construct the dynamic memory matrix and establish the MSET fault early warning model, it will bring redundancy of input information, which will not only increase the complexity of constructing MSET The complexity of the model will also affect the prediction accuracy of the model
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[0051] The core of this application is to provide a dynamic memory matrix construction method, system and related devices for chip production, optimize the rows and columns of the dynamic memory matrix, reduce the complexity of the dynamic memory matrix construction, thereby reducing the construction of MSET The complexity of the model improves the prediction accuracy and generalization ability of the model.
[0052] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative effo...
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The invention discloses a dynamic memory matrix construction method and system for chip production and a related device, and the method comprises the steps: obtaining a historical observation vector of an air compressor, the historical observation vector comprising monitoring data of a plurality of variables; Calculating a correlation coefficient among the variables, dividing the variables into aplurality of small groups according to the correlation coefficient, determining any variable in each small group as a to-be-selected variable, and forming a to-be-selected historical observation vector through the to-be-selected variable; Obtaining a new observation vector, calculating an influence value of the to-be-selected historical observation vector on the new observation vector, and removing the to-be-selected historical observation vector with the influence value meeting a removal condition; And constructing a dynamic memory matrix by rejecting the remaining to-be-selected historical observation vectors after the operation. According to the method, the row and the column for constructing the dynamic memory matrix are optimized, and the construction complexity of the dynamic memorymatrix is reduced, so that the construction complexity of the MSET model is reduced, and the prediction precision and the generalization capability of the model are improved.
Description
technical field [0001] The present application relates to the field of dynamic memory matrix, in particular to a method, system and related device for constructing a dynamic memory matrix for chip production. Background technique [0002] The air compressor is the core equipment of the pneumatic production system. The motor or diesel engine drives the compressor to rotate to convert the mechanical energy of the prime mover into gas pressure energy to provide power for the pneumatic production equipment. In the actual operation process, in order to ensure the safe and stable operation of the air compressor, the MSET (Multivariate State Estimation Technique) model based on data mining is generally used to realize the fault warning function of the air compressor. [0003] When using the MSET method to establish a fault early warning model, it is first necessary to use the historical observation vectors in the normal state of the equipment to construct a dynamic memory matrix. ...
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Inventor崔超林伟斌匡晓云杨祎巍李舟黄开天
OwnerELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD