Anomaly detection method and device

A technology of anomaly detection and variance, applied in the field of network security, can solve the problem of low efficiency of anomaly detection, and achieve the effect of reducing manual workload and improving the efficiency of anomaly detection.

Active Publication Date: 2017-05-10
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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This method not only consumes a lot of manpower, but also as the grid structure becomes more complex, a

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  • Anomaly detection method and device

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] The embodiment of the present invention discloses an abnormality detection method and device, which will be described in detail below.

[0048] see figure 1 , figure 1 A schematic flow chart of an abnormality detection method provided by an embodiment of the present invention, including the following steps:

[0049] S101. Obtain target time series data of the power grid system, and convert the target time series data into a first matrix.

[...

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Abstract

The embodiment of the invention provides an anomaly detection method and device. The method comprises the following steps: acquiring the target time sequence data of a power grid system, and converting the target time sequence data to a first matrix; and inputting the first matrix to a pre-trained coding and decoding model to acquire a second matrix, calculating a first error of the second matrix with respect to the first matrix, and determining that the target time sequence data is the abnormal sequence data when the first error exceeds the preset error range. By adopting the anomaly detection method and device provided by the embodiment of the invention, the anomaly is detected by using the pre-trained coding and decoding model, and thus the manual workload in the anomaly detection of power systems can be reduced, and the efficiency of anomaly detection can be increased.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to an anomaly detection method and device. Background technique [0002] Today's social economy is in a stage of sustained and rapid development, and human social production activities are increasingly dependent on stable power supply. Therefore, it is particularly important to ensure the stable operation of the power grid. In order to ensure the stable operation of the power grid, one of the main aspects is to be able to detect faults in the power grid in time to prevent the instability of the entire power grid from causing large-scale power outages. It can be seen that how to detect grid faults in time is very important to ensure the safe and stable operation of the grid. [0003] Existing anomaly detection methods mainly rely on power system professionals to evaluate power grid anomalies through a large number of calculations and analysis. This method not only consume...

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Application Information

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IPC IPC(8): H04L12/24
CPCH04L41/142H04L41/145
Inventor 李书芳郑凤鸣吴博郭志民张小斐耿俊成万迪明
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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