Supercharge Your Innovation With Domain-Expert AI Agents!

Node positioning method for low-density wireless sensor network

A wireless sensor and node positioning technology, applied in wireless communication, electrical components, etc., can solve problems such as poor results

Active Publication Date: 2015-11-11
XI AN JIAOTONG UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the MDUE algorithm has a good positioning effect when the number of nodes is large, the effect is not good when the number of nodes is small

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
  • Node positioning method for low-density wireless sensor network
  • Node positioning method for low-density wireless sensor network
  • Node positioning method for low-density wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] In order to make the technical solutions and advantages of the present invention clearer, the method for locating nodes in a low-density wireless sensor network of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the content described is only used to explain the technical solution of the present invention, and is not limited to this embodiment.

[0057] The technology involved in the invention mainly solves the problem that the positioning effect of the wireless sensor network is poor when the number of nodes is small (less than 400). The specific method includes the following steps:

[0058] Step 1: Deploy 200 nodes and 4 anchor nodes, and use the positioning algorithm based on multi-hop distance unbiased estimation (MDUE) to locate the nodes in the network for the first time. For specific steps, see figure 2 As shown in the flow chart: first broadcast the ...

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 node positioning method for a low-density wireless sensor network and belongs to the technical field of wireless sensor networks. The hop-count-based unbiased distance estimation algorithm and the node localization algorithm are adopted as the core of the method, and the equal quantities of pseudo anchor nodes are introduced with the principle of reducing the gross hop-count. Meanwhile, the secondary node positioning is conducted on the above basis. Through introducing pseudo anchor nodes and conducting the secondary node positioning, the positioning precision of the low-density wireless sensor network is improved. The defects of the low-density wireless sensor network, such as too few nodes and insufficient information of anchor nodes, can be overcome. The simulation result of the above method shows that, when the number of nodes is smaller than 300, the positioning precision of the above method is superior to that in the prior art. Especially when the number of nodes is 100, the positioning precision is increased by 70% compared with the prior art.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to a node positioning method for low-density wireless sensor networks. Background technique [0002] Wireless sensor network is a multi-hop self-organizing network formed by a large number of cheap micro sensor nodes deployed in the monitoring area through wireless communication. However, due to the different deployment methods of sensor nodes, the measurement results will have great errors. In order to be able to realize real-time and effective positioning of when and where specific events occurred in the entire network, and at the same time to achieve precise positioning and continuous tracking of external targets in the network, an accurate and efficient wireless sensor network node positioning method is very important. . Therefore, how to change the deployment mode of sensor nodes, improve the measurement effect, and reduce the waste of resources h...

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): H04W64/00
Inventor 钟德星李严桵李永强许杰铭韩九强
Owner XI AN JIAOTONG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com