Similarity measurement-based shared subspace multi-view electric smelting magnesium furnace fault monitoring method

Abstract

The invention provides a similarity measurement-based fault monitoring method for a shared subspace multi-view electric smelting magnesium furnace. The method comprises the steps of collecting data and extracting features; constructing a coefficient matrix, and obtaining a neighborhood weight coefficient matrix; establishing an objective function; modifying the established objective function, andsolving to obtain a projection matrix; based on the projection matrix and the approximate expression X * of the plurality of visual angles, obtaining SPE and N2 values of the X *, and based on each visual angle, accumulating SPE1N; obtaining the control lines SPE99, N299 and SPE1N99; collecting a test video to obtain a test video common feature matrix; calculating SPEtest and N2test values of theXtest * and SPE1Ntest based on each view angle; if the value of the SPEtesti, the value of the N2testi and the value of the SPE1Ntesti are higher than a control line, judging that a fault occurs; according to the invention, the problem of multi-view video data joint modeling is mainly solved; the consistency and complementarity of the video data of the multiple visual angles are utilized, missingreport caused by the fact that abnormal working condition points are not captured at a single visual angle can be avoided, life and property loss caused by the fact that abnormal working conditions are not processed in time is avoided, and the fault monitoring efficiency and accuracy can be improved.

Description

technical field [0001] The invention belongs to the technical field of fault monitoring and diagnosis, and in particular relates to a multi-angle fault monitoring method for an electric fused magnesium furnace based on a similarity measurement shared subspace. Background technique [0002] my country's fused magnesia industry mostly uses electric arc furnaces to melt natural magnesite ore to prepare fused magnesia. The production technology and equipment are backward, with low power, small capacity, low efficiency, and low degree of automation. The grade of fused magnesia produced is not good. High, resulting in low utilization of magnesium resources, serious environmental pollution. From this point, the current fused magnesium industry has many disadvantages to the development of the national economy. [0003] Secondly, in the production process of fused magnesium, because magnesium carbonate produces carbon dioxide gas under high temperature conditions, the discharge of ga...

AI Technical Summary

Problems solved by technology

The artificial adjustment method of the operator depends entirely on the operator's own experience, and it is difficult to ensure the timeliness and accuracy of decision-making

If there are accidents such as improper operation, neglect of detection, or equipment failure caused by irresistible natural factors, which will cause production interruption and other accidents, it will bring huge waste and loss to production.

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