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Anomaly detection method and system for water distribution system based on state transition time-delay graph

A state conversion and distribution system technology, applied in the field of information security, can solve the problems that the supervision system cannot be accurately detected in real time, the descriptiveness of critical state characteristics is incomplete, and the reliability and validity of data are not high, so as to improve the efficiency of real-time detection. , high reliability and effectiveness, the effect of improving reliability

Active Publication Date: 2021-09-03
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The lack of real-time detection methods based on equipment status in the existing water distribution system, the incomplete description of critical state characteristics under existing semantic attacks, the low reliability and validity of existing data, and the existing water distribution system When the system encounters valves being opened or closed in an illegal or malicious order, the supervisory system cannot accurately detect them in real time

Method used

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  • Anomaly detection method and system for water distribution system based on state transition time-delay graph
  • Anomaly detection method and system for water distribution system based on state transition time-delay graph
  • Anomaly detection method and system for water distribution system based on state transition time-delay graph

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Embodiment 1

[0038] This embodiment provides a method for detecting abnormality of a water distribution system based on a state transition time delay graph;

[0039] like figure 1 As shown, the abnormal detection method of water distribution system based on state transition time delay graph includes:

[0040] S101: Obtain a mixed data type state data set of a water distribution system; the mixed data type state data set includes: data collection time, water level corresponding to each water tower, on / off state of each water pipe connected to each water tower, and The switch status of each valve connected to each water pipe;

[0041] S102: Convert the mixed data type state data set into a binary data type state data set;

[0042] S103: Generate a state transition delay graph based on the binary data type state data set;

[0043] S104: Obtain real-time data in the water distribution system; wherein, the real-time data includes: the water level of the water storage tower, the switch state ...

Embodiment 2

[0101] This embodiment provides an abnormality detection system for a water distribution system based on a state transition time delay graph;

[0102] Anomaly detection system for water distribution system based on state transition delay graph, including:

[0103] A historical data acquisition module, which is configured to: acquire a mixed data type state data set of the water distribution system; the mixed data type state data set includes: data collection time, water level corresponding to each water tower, The on-off status of each water pipe, and the on-off status of each valve connected to each water pipe;

[0104] A binary data conversion module configured to: convert a mixed data type state data set into a binary data type state data set;

[0105] a state transition delay graph generation module, which is configured to: generate a state transition delay graph based on a binary data type state data set;

[0106] A real-time data acquisition module, which is configured...

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Abstract

The invention discloses a water distribution system abnormality detection method and system based on a state transition time-delay graph, and obtains a mixed data type state data set of the water distribution system; the mixed data type state data set includes: data collection time, each water tower The corresponding water level, the switch state of each water pipe connected to each water tower, and the switch state of each valve connected to each water pipe; convert the mixed data type state data set into a binary data type state data set; based on binary Metadata type state data set, generate state transition delay diagram; obtain real-time data in the water distribution system; among them, real-time data includes: water level of water storage tower, open / close state of water pipe, open / close state of valve switch; The acquired real-time data is input into the state transition delay diagram, and the abnormal detection results of the water distribution system are output.

Description

technical field [0001] The present application relates to the technical field of information security, and in particular, to a method and system for abnormality detection of a water distribution system based on a state transition time-delay graph. Background technique [0002] The statements in this section merely mention the background art related to the present application and do not necessarily constitute prior art. [0003] According to the industrial network deployment level, attacks against industrial control networks can be divided into three categories: surveillance network attacks, that is, network attacks from the information space, such as tampering with data packets and destroying their integrity; system attacks, injecting illegal commands to destroy field equipment, Or violate the definition of the data packet format in the bus protocol, such as tampering with some of the parameters, making it out of range to form an attack; semantic attack (also called sequence...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0243G05B2219/24065
Inventor 徐丽娟赵大伟吴晓明杨淑棉丁潇唐超凡
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN