Passive indoor intrusion detection method based on OFDM subcarrier empirical analysis
An intrusion detection and sub-carrier technology, applied in the field of wireless perception, can solve the problems of poor generalization ability, manual calibration, high dependence on environment and equipment deployment mode, and achieve the effect of strong generalization ability and flexible application form
Pending Publication Date: 2021-06-11
NANJING UNIV OF INFORMATION SCI & TECH
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the current CSI-based passive detection system still has problems such as poor generalization ability and high dependence on the environment and equipment deployment methods.
When deploying to a new environment, manual calibration or even retraining is often required, which shows that traditional intrusion detection solutions have certain limitations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0050] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiment...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a passive indoor intrusion detection method based on OFDM subcarrier empirical analysis, and the method comprises the following steps: deploying Wi-Fi communication equipment, acquiring training time sequence data, and sequentially carrying out abnormal value filtering operation, wavelet transform filtering operation, standardization processing, link selection, data windowing processing and feature extraction on the training time sequence data, obtaining training feature data, training an initial detector by adopting the training feature data, obtaining an intrusion detector, collecting to-be-detected time sequence data through Wi-Fi communication equipment, obtaining feature data of the to-be-detected time sequence data, obtaining to-be-detected feature data, and inputting the to-be-detected feature data into the intrusion detector for intrusion detection; therefore, the flexibility of the corresponding intrusion detection scheme is improved, the intrusion detection scheme can be suitable for various new environments, manual calibration or retraining in the new environments is not needed, and the detection accuracy is high.
Description
technical field [0001] The invention relates to the technical field of wireless perception, in particular to a passive indoor intrusion detection method based on OFDM subcarrier empirical analysis. Background technique [0002] Most current intrusion detection systems use dedicated sensors, such as inertial sensors, pressure sensors, ultrasonic sensors, and infrared sensors. These sensors are pre-deployed at specific locations in the room, they can collect motion information in real time and send out alarm information through preset thresholds. However, the performance of these specialized sensing devices can be affected by the structure of the building, where and how it is deployed, and sensor baseline drift. [0003] Another intrusion detection system uses computer image processing technology to continuously collect and analyze indoor image information to achieve real-time intrusion detection. However, this detection method requires the deployment of multiple cameras ind...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/309G08B13/22G06K9/62
CPCH04B17/309G08B13/22G06F18/214
Inventor 庄伟申义贤李露储勖张运闳
Owner NANJING UNIV OF INFORMATION SCI & TECH