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

Range-free based device and method for screening network anchor nodes

A technology of positioning device and screening method, applied in network topology, electrical components, wireless communication and other directions, can solve problems such as poor positioning accuracy

Inactive Publication Date: 2014-09-17
NANJING UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: Aiming at the problem of poor positioning accuracy of the non-ranging algorithm, the present invention proposes a non-ranging-based network anchor node screening and positioning device and its method. The device and its method can not only improve the positioning accuracy, but also The greater the unevenness, the more obvious the effect of positioning improvement

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
  • Range-free based device and method for screening network anchor nodes
  • Range-free based device and method for screening network anchor nodes
  • Range-free based device and method for screening network anchor nodes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] The present invention will be further described below in conjunction with the accompanying drawings.

[0070] In this embodiment, the classic non-ranging algorithms all take the traditional DV-Hop algorithm as an example.

[0071] A non-ranging-based network anchor node screening and positioning device, including randomly distributed ordinary nodes, ordinary nodes include anchor nodes and unknown nodes, both anchor nodes and unknown nodes include embedded node modules and provide driving force for embedded node modules power supply. Such as figure 1 As shown, the embedded node module includes a programming chip 4, a Flash memory chip 5, a communication chip 2, and an antenna 3. The programming chip 4 analyzes, screens, and analyzes the hop count and position data from each anchor node to the node in the network. Calculate, and control the communication chip to broadcast the hop count and position data from each anchor node to the node through commands; the communicati...

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 non-ranging-based network anchor node screening and positioning device and a method thereof. It uses the average hop distance distribution function information stored inside unknown nodes to anchor nodes to screen qualified anchor nodes for positioning, and uses a computer terminal to The algorithm is evaluated and belongs to the field of wireless sensor networks. The present invention mainly includes: hardware design of communicable node modules; using a screening algorithm to select qualified anchor nodes, and then using the least squares principle to calculate the location of unknown nodes; building an algorithm evaluation system on a computer terminal to evaluate the algorithm in the present invention Quantitatively compare with other non-ranging algorithms, and make a more accurate judgment on the network characteristics from the comparison results, and adjust the positioning algorithm according to the network characteristics to optimize system performance. The device and method of the present invention can improve the positioning accuracy of unknown nodes, and as the uneven distribution of network nodes increases, the improvement effect becomes more obvious.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network non-ranging positioning, and in particular relates to a non-ranging-based network anchor node screening and positioning device and method thereof. Background technique [0002] Wireless sensor network (WSN, Wireless Sensor Networks) is an ad hoc network composed of low power consumption and small sensor nodes distributed in the monitoring area. Due to its advantages of low power consumption, low price, and strong fault tolerance, wireless sensor networks have always been one of the research hotspots in the field of wireless communication, and are used in environmental monitoring, disaster sites, military battlefields, and biodiversity research. The location information of nodes plays a very important role in WSN, so improving the positioning accuracy is of great significance to improving the effectiveness and practicability of the network. [0003] There are many kinds of position...

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 Patents(China)
IPC IPC(8): H04W64/00H04W84/18
Inventor 孙春杰叶芝慧
Owner NANJING UNIV
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