Network storm real-time rapid detecting method used for intelligent substation

A technology for smart substations and network storms, applied in the field of real-time rapid detection of network storms for smart substations, can solve the problems of network storm identification and detection of large computing resources and memory resources, and achieve network storms, avoid computing resources, reduce The effect of small volume

Active Publication Date: 2013-09-11
SHANDONG SHANDONG UNIV ELECTRIC POWER TECH
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AI Technical Summary

Problems solved by technology

Among them, the network storm caused by a large number of message forwarding is a common network fault; usually, due to the need to analyze the content of the message data, the identification and detection of the network storm requires large computing resources and memory resources

Method used

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  • Network storm real-time rapid detecting method used for intelligent substation
  • Network storm real-time rapid detecting method used for intelligent substation
  • Network storm real-time rapid detecting method used for intelligent substation

Examples

Experimental program
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Embodiment Construction

[0023] Such as figure 1 As shown, the overall scheme is composed of information extraction and feature value calculation module, data statistics module, and anomaly detection module.

[0024] Such as figure 2 As shown, the form uses the 16-bit characteristic value output by the characteristic value calculation module as the index, and the stored table items are: traffic statistics and network port number, which are used for abnormal detection of exceeding the upper limit and alarm input respectively.

[0025] Such as image 3 As shown, first, the system creates a data statistics table and sets the traffic threshold;

[0026] Step 0301, after the network receiving module receives the network message, the information extraction and characteristic value calculation module starts, and directly extracts key information from the network message;

[0027] Step 0302, call the hash function 1, calculate the characteristic value 1 according to the key information 1; call the hash fu...

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Abstract

The invention discloses a network storm real-time rapid detecting method used for an intelligent substation. The network storm real-time rapid detecting method includes: utilizing existing message analytical results from a message record and analytical device to select two kinds of information which can represent message features as detecting items; performing Hash calculation to the two detecting items and combining calculated result into 16bit characteristic value; calculating message flow with the same characteristic value received from each network port within detecting time window; defining as network storm if the message flow exceeds preset warning threshold value; and calculating restoration marks when the detecting window is completed, and recording calculated data while performing zero clearing and operation. In the network storm real-time rapid detecting method, messages are utilized for analyzing abstracted message information, flow storm can be detected rapidly and accurately, and performance of devices cannot be affected.

Description

technical field [0001] The invention relates to a detection method for network storms, in particular to a real-time rapid detection method for network storms in intelligent substations. Background technique [0002] The power system is developing in the direction of intelligence. The communication network messages of the substation control layer, interval layer and process layer have become the main way of information interaction and sharing between substation smart devices. The health status of intelligent equipment and communication network will directly affect the communication of the entire smart substation. Abnormalities or failures of the sending end, receiving end and communication network of network messages may lead to major accidents in the power system. Therefore, network message recording devices or digital The wave recording device can not only record and analyze the messages, but also needs to effectively monitor the network messages, diagnose the network statu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24
Inventor 梁军李欣唐范作程杜涛
Owner SHANDONG SHANDONG UNIV ELECTRIC POWER TECH
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