Indoor passive motion detection method and device

A mobile detection device and mobile detection technology, applied in wireless communication, transmission monitoring, electrical components and other directions, can solve the problems of unstable wireless signal strength measurement, inability to distinguish dynamic narrowband interference, measurement of RSS interference, etc. The effect of optimizing the movement detection problem and improving the detection accuracy

Inactive Publication Date: 2013-04-03
SUN YAT SEN UNIV
View PDF3 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are two main problems in mobile monitoring using wireless signal reception strength: first, the problem of wireless reception signal strength being interfered by narrowband is particularly serious
In the range of 2.4GHz, there are various communication devices such as cordless phones, Bluetooth and ZigBee, etc. This common narrowband device will cause ser

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Indoor passive motion detection method and device
  • Indoor passive motion detection method and device
  • Indoor passive motion detection method and device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0044] The Channel Statement Information (CSI) in the embodiment of the present invention represents the channel characteristics of the communication link. Specifically, the CSI describes and reflects the propagation state of the radio frequency signal from the transmitting source to the receiving end, such as scattering, reflection, and attenuation. . The channel state information on the subcarriers can reflect the signal strength of ea...

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

No PUM Login to view more

Abstract

An embodiment of the invention discloses an indoor passive motion detection method and device. The indoor passive motion detection method includes: obtaining channel state information of each sub carrier after signal demodulation; extracting the characteristic value corresponding to any single channel according to the channel state information; classifying the characteristic values and obtaining the detection result corresponding to the motion behavior; and performing misjudgment correction and leak detection checking for the detection result to obtain the monitoring result. According to the indoor passive motion detection method and device, not any additional software devices are needed to be added, and the positioning cost can be reduced; and the indoor passive motion detection of a wireless local area network is optimized by obtaining and processing the channel state information of all sub carriers and using the narrow-band interference resistance and the time domain stability of the sub carriers, the alarming accuracy is improved, the influence of indoor environment multiple paths when the motion behavior happens can be effectively reduced, and the detection accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of motion detection, in particular to an indoor passive motion detection method and a detection device thereof. Background technique [0002] Motion detection is a basic process of detecting whether there is any entity moving in the region of interest, and its importance is reflected in the fact that more and more mobile / mobile computing applications need to perform this detection. For example, a hospital can monitor a patient's status and issue a health care alarm in time when a patient's disease occurs; enterprises and residential communities can use this technology to monitor abnormal intrusions to strengthen security precautions, etc. Although there are a variety of mobile detection systems, most of them have certain limitations, such as the need for special hardware support, such as acceleration sensors, radar sensors, or photoelectric sensors. below will not work. [0003] Recently, the popularizatio...

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
no application Login to view more
IPC IPC(8): H04B17/00H04W24/08
Inventor 肖江伍楷舜倪明选罗笑南
Owner SUN YAT SEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap