Invasion monitoring method based on WIFI wireless signal and system

Abstract

The invention provides an invasion monitoring method based on a WIFI wireless signal. The method comprises following steps that each monitoring node acquires a CSI sub carrier wave emitted by a WIFI signal source, feature vector extraction is performed after initial filtering and de-noising filtering processing are carries out and the biggest component is selected to be a main feature variable of the signal; each monitoring node sends third signals to a front end server; and when the absolute value of the main feature variable of one of the third signals and the main feature variable of a static state signal is larger than a monitoring threshold value, the front end sever triggers an alarming signal. According to the invention, by sue of the existing wireless infrastructures, through signal processing, the CSI sub carrier waves are grabbed and analyzed to obtain a feature signal with the main feature variable; the feature signal is sent to the front end server and compared with a feature information database in the server, so whether foreign bodies invade the system can be judged; and by combing the provided system and the existing monitoring system, all-directional monitoring of a target region is achieved.

Description

technical field [0001] The invention relates to the technical field of information and communication engineering, to the application of wireless equipment in the field of target recognition and security, and in particular to an intrusion monitoring method and device based on WIFI wireless signals. Background technique [0002] With the rapid development of modern science and technology, the field of artificial intelligence is becoming more and more mature. Among them, the intelligent recognition and intelligent monitoring technology of human body movements is also developing rapidly as the basic technology of artificial intelligence. The existing intelligent monitoring technology can monitor the target object in real time. Provide detailed and effective analysis data for computers and artificial intelligence systems, but there is still a huge room for expansion of application requirements for real environments. [0003] Existing intrusion monitoring methods include video mon...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of modern science and technology, the field of artificial intelligence is becoming more and more mature. Among them, the intelligent recognition and intelligent monitoring technology of human body movements is also developing rapidly as the basic technology of artificial intelligence. The existing intelligent monitoring technology can monitor the target object in real time. Provide detailed and effective analysis data for computers and artificial intelligence systems, but there is still a huge room for expansion of application requirements for real environments

[0003] Existing intrusion monitoring methods include video monitoring, infrared monitoring, etc. These monitoring methods have defects in coverage area and monitoring environment. Serious impact, high false alarm rate, etc.;

[0006] At present, the environment-aware analysis technology of CSI sub-carrier signals is still in the initial stage of development. Although the analysis based on wireless signals has high precision, the relevant research is still in the laboratory stage, and the practical application is very limited, and the problem solving of practical applications is mostly in the Exploration stage

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