Public network communication data safety monitoring method and system based on wavelet decomposition

Abstract

The invention discloses a public network communication data safety monitoring method and system based on wavelet decomposition. The method comprises the following steps that: collecting the real-timetraffic data of a public network communication, utilizing wavelet decomposition to decompose the real-time traffic data into a plurality of real-time signal components, and then, obtaining the energyvalue of each real-time component; according to the energy value of each real-time component, calculating the real-time characteristic traffic set of the real-time traffic data, and comparing the real-time characteristic traffic set with a preset basic characteristic traffic set; and when correlation between the real-time characteristic traffic set and the preset basic characteristic traffic set is lower than a preset threshold value, outputting an exceptional data report. By use of the method, on the basis of the wavelet decomposition, the characteristic traffic is extracted and compared to realize the safety data detection of the real-time traffic, and the safety prevention and control ability of the public network communication is greatly improved.

Description

technical field [0001] The invention relates to the technical field of public network communication, in particular to a method and system for monitoring public network communication data security based on wavelet decomposition. Background technique [0002] Public network communication is widely used in the field of power communication and is an important part of the power communication network. With the development of smart grid, the application scale of public network communication will be further expanded, and the requirements for data security of public network communication are getting higher and higher. At present, due to the problem that the public network wireless channel is intercepted and imitated by the attacker, the power grid equipment is miscontrolled, and when the power communication network fails, it is difficult to determine whether the fault is caused by the power grid device or the operator channel. Faults cause low efficiency of fault handling. Therefore...

AI Technical Summary

Problems solved by technology

At present, due to the problem that the public network wireless channel is intercepted and imitated by the attacker, the power grid equipment is miscontrolled, and when the power communication network fails, it is difficult to determine whether the fault is caused by the power grid device or the operator channel. Caused by faults, the efficiency of fault handling is low. Therefore, the security monitoring of public network communication data is very necessary, but there is no technical means for realizing the security monitoring of public network communication data in the power communication network in the prior art

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