Alarm associated variable detection method and system based on relevance

A technology of related variables and detection methods, applied in the field of signal processing, can solve problems such as increasing difficulty, affecting the attention of on-site operators, and interfering with alarms, so as to improve efficiency, avoid over-fitting and omissions, and ensure production safety sexual effect

Inactive Publication Date: 2017-05-31
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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Problems solved by technology

[0002] The alarm system plays a vital role in ensuring the safe production and high-efficiency operation of coal-fired generating units. Due to the mutual influence between related variables in the actual industrial process, the traditional single-variable alarm threshold design method may generate a large number of disturbing alarms (missing alarms). Alarms and false alarms) and lead to "too many alarms", which affects the attention of on-site operators and increases the difficulty of correct handling when abnormal production conditions occur

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  • Alarm associated variable detection method and system based on relevance
  • Alarm associated variable detection method and system based on relevance
  • Alarm associated variable detection method and system based on relevance

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[0072] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0073] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0074] figure 1 It is a flow chart of the correlation-based alarm-related variable detection method of the pres...

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Abstract

The invention discloses an alarm associated variable detection method and system based on relevance, wherein the method comprises the steps of establishing a binary time sequence through an associated variable; and quickly and automatically acquiring an abnormal data section from historical data accurately by combining a time sequence sectioning method and a correlation coefficient trend method so as to detect abnormal data, thereby providing favorable conditions for a dynamic alarm threshold value design of a multi-variable alarm system, so that disturbance alarm is reduced, the efficiency of treating alarm by a field operator is improved, and the production safety is guaranteed.

Description

technical field [0001] The invention belongs to the field of signal processing, and in particular relates to a correlation-based alarm-related variable detection method and system. Background technique [0002] The alarm system plays a vital role in ensuring the safe production and high-efficiency operation of coal-fired generating units. Due to the mutual influence between related variables in the actual industrial process, the traditional single-variable alarm threshold design method may generate a large number of disturbing alarms (missing alarms). Alarms and false alarms) and lead to "too many alarms", which affects the attention of on-site operators and increases the difficulty of correct handling when abnormal production conditions occur. [0003] Based on a large number of case facts that the correlation between variables often changes significantly compared with normal working conditions when equipment or systems are abnormal in the process, a correlation-based detec...

Claims

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Application Information

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IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 王建东庞向坤黄越高嵩
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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