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Method for aligning plurality of alarm surge sequences

A sequence and surge technology, which is applied in the field of alignment of multiple alarm surge sequences, can solve problems such as the inability to find multiple alarm surge sequence templates, and achieve the effect of reducing calculation complexity and shortening calculation time

Active Publication Date: 2020-01-14
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this algorithm also has limitations. It is limited to the alignment of two alarm surge sequences, and it is impossible to find out the templates of multiple alarm surge sequences.

Method used

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  • Method for aligning plurality of alarm surge sequences
  • Method for aligning plurality of alarm surge sequences
  • Method for aligning plurality of alarm surge sequences

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below.

[0043]The three alarm sequences that need to be aligned are shown in Table 1:

[0044] Table 1 Alarm sequence to be aligned

[0045]

[0046] After finding the common subsequence, set the seed threshold to 7, and the seed fragment shown in Table 2 can be obtained:

[0047] Table 2 Seed Fragments

[0048]

[0049] The result of the alignment can be obtained by extending the obtained seed fragments to both sides and backtracking. In this example, the first seed is selected for illustration.

[0050] Extend the seed segment forward and backward respectively to get the following alignment results:

[0051]

[0052] According to the alignment result, can be selected as a template sequence of the alarm surge, and when the alarm is predicted online, the upcoming ...

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Abstract

The invention belongs to the technical field of industrial alarm. The invention provides a method for aligning a plurality of alarm surge sequences, which comprises the following steps of: changing aplurality of alarm surge sequences with different lengths into a group of alarm sequences with the same length through methods of inserting gaps, deleting irrelevant alarms and the like according to similarity scores among the alarm surge sequences, and further discovering a frequent alarm sequence mode. The step of aligning the three alarm sequences is added in the alarm surge analysis process, so that the template sequence of the alarm surge can be found out, and a matched template is provided for online prediction and alarm. According to the algorithm provided by the invention, on the basisof not influencing the alignment accuracy, the calculation complexity is reduced, the calculation time is shortened, and preparation work is provided for rapid matching during online prediction and alarm.

Description

technical field [0001] The invention belongs to the technical field of industrial alarms, relates to knowledge related to alarm surges, and in particular relates to an alignment method of multiple alarm surge sequences. Background technique [0002] The alarm system is an important part to ensure the safe and effective operation of the industrial production process. With the development of distributed control systems, the alarm configuration has become more and more simple, resulting in a large number of alarms in industrial processes. According to the definition of EEMUA and ISA-18.2 industry standards, an alarm surge is considered to occur when more than 10 alarms occur every 10 minutes. There are a large number of false alarms and nuisance alarms in the alarm system, which constitute the alarm surge. [0003] Alarm surges can be caused by many factors, such as abnormal conditions, improper alarm system design and transitions in operating states. The alarm surge submerg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
CPCG06F18/232G06F18/2415
Inventor 夏浩段雨
Owner DALIAN UNIV OF TECH
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