Detection method for abnormal state of multi-mode industrial process, system thereof and equipment

A technology for industrial processes and abnormal states, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as insufficient detection accuracy of abnormal production states, and achieve improved overall modeling accuracy, considerable application prospects, and high modeling accuracy Effect

Active Publication Date: 2021-11-19
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem of insufficient detection accuracy of the abnormal production state reflected by the abnormal change trend of the monitored multidimensi...

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  • Detection method for abnormal state of multi-mode industrial process, system thereof and equipment
  • Detection method for abnormal state of multi-mode industrial process, system thereof and equipment
  • Detection method for abnormal state of multi-mode industrial process, system thereof and equipment

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Embodiment Construction

[0071] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than Full examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0072] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, not to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are sho...

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Abstract

The invention belongs to the field of process monitoring, particularly relates to a detection method for abnormal state of a multi-mode industrial process, a system and equipment, and aims to solve the problem of insufficient detection precision of an abnormal production state reflected by an abnormal change trend of a monitored multi-dimensional variable in a complex industrial production process. The method comprises the following steps: acquiring state monitoring data; preprocessing the state monitoring data to obtain preprocessed data; segmenting the preprocessed data, and constructing an augmented matrix used for describing the state of the production process at the t moment as a first matrix; calculating detection results under set abnormal indexes set and sbt based on errors between the matrixes; carrying out filtering processing on the obtained detection result; and if the value corresponding to the filtered detection result is greater than any one of two pre-acquired alarm thresholds, performing early warning. According to the invention, the detection precision of abnormal state detection in the multi-mode industrial process is improved.

Description

technical field [0001] The invention belongs to the field of process monitoring, and in particular relates to a detection method, system and equipment for abnormal states of multi-modal industrial processes. Background technique [0002] Modern industrial production lines are becoming more and more complex. If abnormal phenomena in the production process cannot be detected, diagnosed and eliminated in time, it may lead to equipment damage, product quality decline, and even serious production accidents and casualties. Nowadays, a large number of sensors have been used to monitor the production process, and sufficient monitoring data can be collected from the production process. Using these data, a data-driven model can be built to realize real-time monitoring of the production process and automatic detection of abnormal states. The relevant research has great research significance and application value. [0003] Most of the existing process monitoring algorithms are aimed a...

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Application Information

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IPC IPC(8): G05B19/418G06F17/16
CPCG05B19/41875G06F17/16G05B2219/31359Y02P90/02
Inventor 徐歆尧徐德王欣刚
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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