Multi-region indoor safety positioning method based on compressed sensing technology

A technology of compressed sensing and secure positioning, applied in the direction of location information-based services, nan, instruments, etc., can solve problems such as errors in monitoring results, insufficient consideration of wireless sensor network security issues, and damage to the effectiveness of network applications, so as to improve efficiency Effect

Active Publication Date: 2017-02-22
HUNAN UNIV
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research in this field mainly focuses on how to improve the positioning accuracy and energy efficiency, and insufficient consideration is given to the security of wireless sensor networks in the indoor positioning process.
Since wireless sensor nodes are deployed openly, they are easily captured by attackers, and the physical properties of the signals based on positioning are easily tampered by the outside world.
And because th

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
  • Multi-region indoor safety positioning method based on compressed sensing technology
  • Multi-region indoor safety positioning method based on compressed sensing technology
  • Multi-region indoor safety positioning method based on compressed sensing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A multi-region indoor safe positioning method based on compressed sensing technology, including an offline stage, a safety monitoring stage and an online stage, the specific steps are as follows:

[0051] 1. Offline stage

[0052] In the set area where the node to be located is located, the anchor nodes are deployed according to an equilateral triangle, and the RSSI security key matrix of the node to be located is constructed according to the distance between the node to be located and the anchor node;

[0053] 1) Establish offline measurement matrix:

[0054] The total number of grid nodes in the positioning area is N, and the number of anchor nodes is L; on each grid, q times of sampling are performed to collect the RSS (received signal strength) values ​​of all anchor nodes sensed by grid points, Obtain an initial L×N dimensional offline measurement matrix

[0055] in Indicates the offline RSS average value sampled by the j-th grid node at the i-th anchor node;...

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

The invention provides a multi-region indoor safety positioning method based on a compressed sensing technology. The positioning method utilizes a compressed sensing principle, and comprises three stages of an offline stage, a safety monitoring stage and an online stage, i.e., 1, in a set region where a node to be positioned is positioned, anchor nodes are deployed according to an equilateral triangle, and according to a distance between the node to be positioned and each anchor node, an RSSI safety key matrix of the node to be positioned is constructed; an actual RSSI value received by the node to be positioned is compared with a corresponding value in the RSSI safety key matrix, and malicious anchor nodes are removed; and the node to be positioned receives sensed anchor node information in real time and draws an overlapping region, an orthogonalized sparse signal is reduced by utilizing a signal recovery algorithm, and accurate position estimation is carried out to obtain positioning information of the node to be positioned. By establishing a random number dictionary with an adaptive ability, malicious positioning information is removed, so that safety of positioning is ensured.

Description

technical field [0001] The invention belongs to the field of wireless sensor networks, in particular to a multi-region indoor safe positioning method based on compressed sensing technology. Background technique [0002] Wireless sensor network indoor positioning has developed rapidly in recent years, including the application of intelligent sensing technology, embedded computing technology and communication technology to improve the accuracy of indoor positioning and broaden the application range of indoor positioning. [0003] Indoor positioning has been successfully applied in various fields in recent years, including museum navigation, warehouse navigation, parking lot navigation, etc. However, the current research in this field is mainly focused on how to improve the positioning accuracy and energy efficiency, and insufficient consideration is given to the security of wireless sensor networks in the process of indoor positioning. Since wireless sensor nodes are deployed...

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): H04W4/04H04W64/00G01S11/06H04W84/18
CPCG01S11/06H04W4/04H04W64/00H04W84/18
Inventor 罗娟姚祥菊刘畅查俊莉
Owner HUNAN 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