A method and device for monitoring a multi-modal process of strip hot rolling

A technology of process monitoring and hot continuous rolling, applied in the direction of reasoning method, calculation model, character and pattern recognition, etc., can solve the problem of not considering the limitation of state residence time distribution, and achieve the effect of good monitoring effect.

Active Publication Date: 2022-05-13
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0014] The present invention aims at the problems that traditional multimodal process monitoring cluster analysis needs to specify the number of modalities, does not consider the limitation of state residence time distribution, and the problem of Gaussian distribution hypothesis limitation for data in feature extraction, and proposes the present invention

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  • A method and device for monitoring a multi-modal process of strip hot rolling
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  • A method and device for monitoring a multi-modal process of strip hot rolling

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Embodiment Construction

[0098] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0099] Such as figure 1 As shown, the embodiment of the present invention provides a multi-modal process monitoring method for strip hot rolling, which can be implemented by electronic equipment. Such as figure 1 The flow chart of the multi-modal process monitoring method for hot continuous rolling of strip steel is shown, and the processing flow of the method may include the following steps:

[0100] S11. Obtain the test data of the strip hot rolling process.

[0101] In a feasible implementation mode, the strip hot rolling process is a steel production process with complex mechanism, large scale, high efficiency and multiple processes, and is a typical complex process industry. Such as figure 2 As shown, the production line is mainly composed of h...

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Abstract

The invention discloses a method and device for monitoring a multi-mode process of strip steel hot continuous rolling, and relates to the technical field of industrial process monitoring. Including: training HDP-HSMM-KECA model by using the obtained strip hot rolling process data to obtain the control limits of each mode and the global control limit; input the test data into the trained HDP-HSMM sub-model to obtain the test data Corresponding modalities; preprocess the test data based on the corresponding modalities of the test data; input the preprocessed test data into the trained KECA sub-model, obtain the local statistics of the corresponding modalities and then obtain the global statistics; if the global statistics If the statistic is less than or equal to the control limit, the strip hot rolling process is running normally; if the global statistic is greater than the control limit, the strip hot rolling process is faulty. The invention can solve the problem that the traditional multi-modal process monitoring cluster analysis needs to specify the number of modes, does not consider the limitation of the state residence time distribution, and the problem of Gaussian distribution assumption limitation on the data for feature extraction.

Description

technical field [0001] The invention relates to the technical field of industrial process monitoring, in particular to a method and device for monitoring a multi-mode process of strip steel hot continuous rolling. Background technique [0002] The hot strip rolling process is a steel production process with complex mechanism, large scale, high efficiency and multiple processes. It is a typical complex process industry. The production line is mainly composed of heating furnace, rough rolling unit, hot output roller table and flying shear, finishing rolling unit, laminar cooling and coiling unit, etc. The monitoring and fault diagnosis of the strip hot rolling process will help operators understand the running status of the production process in real time, and timely monitor the abnormal status during the running process, so as to locate the fault and take corresponding measures. Improve measures to eliminate abnormal states, improve product quality and production efficiency,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06N5/04G06N7/00
CPCG06N5/04G06N7/01G06F18/2135G06F18/23G06F18/295
Inventor 彭开香杜雅平
Owner UNIV OF SCI & TECH BEIJING
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