Smart electric meter state abnormity detection method based on seasonal model time sequence

A smart meter and time series technology, applied in the direction of measuring devices, electrical components, measuring electrical variables, etc., can solve problems such as difficult to detect unknown new intrusion methods, and achieve the effect of improving security

Inactive Publication Date: 2017-06-13
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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Problems solved by technology

Feature-based intrusion detection can accurately detect known intrusion behaviors, but it is difficult to detect unknown new intrusion methods. For this reason, we designed a seasonal model time series smart meter anomaly detection method, by modeling the normal host operating data measurement , realize the ability to detect abnormal traffic behavior caused by unknown attacks

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  • Smart electric meter state abnormity detection method based on seasonal model time sequence
  • Smart electric meter state abnormity detection method based on seasonal model time sequence

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] A kind of abnormality detection method of smart meter state based on seasonal model time series of the present invention, such as figure 1 shown, including the following steps:

[0033] (1) Selected measure: The measure is selected based on the monitoring data of the meter system, such as figure 2 As shown, the selected metrics include the host's CPU utilization, number of processes, number of open ports, and network interface byte throughput. Each field needs to be collected through the Agent program installed on the host side of the smart meter.

[0034] (2) Training set establishment: In the training set establishment phase, when selecting the training data set, it is necessary to ensure that the smart meter must be controllable, so as to prevent the attack data from being used as training data under uncontrollable conditions. A...

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Abstract

The invention relates to a smart electric meter state abnormity detection method based on a seasonal model time sequence. According to the detection method, host operation data of a smart electric meter is obtained based on AMI; observing measure is established for traffic and indexes such as an operation CPU utilization rate, the process number, the port number and network interface byte throughput of a host; a detection model is determined through a standard training data set and a seasonal model time sequence method; traffic measure is obtained in real time; abnormal behaviors possibly contained in the traffic of the smart electric meter are detected through a detection model; the behaviors may be fault traffic resulting from a device fault, or attack traffic generated after an operating system of a device is invaded and controlled, or the attack traffic injected after a collection line is attacked by a middle man; and the security of the system is improved.

Description

technical field [0001] The invention relates to the field of smart grid network security, in particular to a method for detecting abnormal states of smart electric meters based on seasonal model time series. Background technique [0002] The smart grid can make comprehensive use of various available information to improve the intelligence level of the whole process of power generation, transmission, distribution and use, so as to meet the needs of energy saving, environmental protection and cleanness, and safe and reliable power supply. The interaction between the supply and demand sides of the power consumption side is one of the basic characteristics of the smart grid. The advanced measurement system based on smart meters with two-way communication capabilities is the basis for realizing information interaction and interactive electricity consumption. [0003] In the advanced measurement system of the actual power grid, there are often millions of smart meters installed o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G01R35/04
Inventor 丁正阳丁一新夏飞李萌
Owner INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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