Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for positioning wireless sensor network based on RSS

A wireless sensor and network positioning technology, applied in positioning, wireless communication, radio wave measurement system, etc., can solve the problem of large positioning error, achieve real-time improvement, reduce time complexity, and reduce the effect of greater interference on positioning accuracy

Active Publication Date: 2014-07-23
NANJING UNIV OF POSTS & TELECOMM
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under noise interference, the positioning error is still relatively large

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
  • Method for positioning wireless sensor network based on RSS
  • Method for positioning wireless sensor network based on RSS
  • Method for positioning wireless sensor network based on RSS

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0032] Multilateral measurement methods such as figure 1 shown.

[0033] Such as figure 2 Shown, flow process of the present invention is as follows:

[0034] Compressed sensing-coarse positioning stage: coarse positioning uses compressed sensing technology. Set M to be the number of sensors, N to be the number of grids, and K to be the sparseness.

[0035] First use the transformation space to describe the signal, and then directly collect a small number of linear observation data through a specific waveform. When the transformation coefficient of the N-dimensional signal X on the transformation basis is k-sparse, if the number of samples M satisfies:

[0036] M=O(k log(N / k))M<

[0037] Then the original signal can be recovered from the compressed observed data by solving an optimization problem.

[0038] Since a single target is...

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 discloses a method for positioning a wireless sensor network based on RSS. The method aims to widen application fields on the premise that positioning accuracy is guaranteed. The positioning step is divided into two stages, namely the coarse positioning stage and the fine positioning stage. In the coarse positioning stage, a compressed sensing technology is utilized to collect a small number of data as soon as possible to reconstruct a probable existence range of a target; in the fine positioning stage, according to a target positioning region acquired in the coarse positioning stage, a multilateral measuring technology is utilized to accurately position the positioning target. According to the method, the limitation that an unknown target only can be positioned in a grid center can be overcome, the application fields of the compressed sensing positioning method are widened, and complexity is lowered.

Description

technical field [0001] The invention relates to a wireless sensor positioning method, which belongs to the technical field of wireless communication technology, sensor technology and special self-organizing network of distributed computing. Background technique [0002] In recent years, with the popularization of wireless networks and the rapid development of ubiquitous computing, wireless positioning technology has been developed in the fields of medical care, education, public security and military affairs. As a special self-organizing network that combines wireless communication technology, sensor technology and distributed computing, the wireless sensor positioning system can be deployed in dangerous areas for long-term, collaborative real-time monitoring, and convenient positioning data processing. Therefore, based on wireless sensor Research on network positioning systems has been developed. [0003] Positioning using Received Signal Strength (RSS) parameters requires...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/00
Inventor 颜俊曹杨芹吴晓富朱卫平
Owner NANJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com