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

Mesh network node positioning method

A node positioning and mesh network technology, applied in energy-saving ICT, location-based services, advanced technologies, etc., can solve the problems of low positioning accuracy and high energy consumption of the positioning system, reduce energy consumption and improve positioning accuracy. Effect

Active Publication Date: 2013-04-03
GUANGDONG UNIV OF TECH
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of low positioning accuracy and high energy consumption of the current Zigbee-based positioning system based on CC2431, the present invention provides a Zigbee-based mesh network node positioning method with high precision, energy saving and consumption reduction

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
  • Mesh network node positioning method
  • Mesh network node positioning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 1) Predict the trajectory of the mobile node.

[0023] The moving window exponential weighted average method is used to predict the position of the mobile node. The moving window exponential weighted average method is calculated in an iterative manner, and the predicted value P at time n n (x n ,y n ) only with the predicted value P at the previous moment n-1 (x n-1 ,y n-1 ) is related to the current position P(x, y), the calculation formula is as follows:

[0024] P n (x,α)=α×P n-1 (x)+(1-α)P n (x)

[0025] P n (y,α)=α×P n-1 (y)+(1-α)P n (y)

[0026] Where: P n (x) represents the predicted value of the x coordinate at time n; α is the weight; P n-1 (x, α) represents the predicted value of the x-coordinate at time n-1; P(x) represents the x-coordinate at the current moment;

[0027] P n (y,α) represents the predicted value of the y coordinate at time n; P n-1 (y, α) represents the predicted value of the x coordinate at time n-1; P n (y) represents 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 mesh network node positioning method which comprises (1) predicting a trajectory according to a historical trajectory; (2) controlling a transmitting power of a reference node to enable that a power value of a mobile node is the largest; and (3) performing dormancy processing on an unrelated reference node to achieve node energy control. According to the disadvantages of the existing Zigbee node positioning effect of CC2431 that the energy consumption is high, the precision is low; when arranging wireless sensor network reference nodes on a large scale, the overall energy consumption of the system is increased, the energy intensity of signals is enhanced, and the positioning effect of the system is essentially improved, but the positioning accuracy is not effectively improved; the mesh network node positioning method is aimed at providing a Zigbee positioning algorithm which is high in precision, saves the energy and reduces the consumption.

Description

technical field [0001] The invention relates to a mesh network node positioning method, which is suitable for personnel positioning in medical treatment, mining, prison and other environments, and can well meet the requirements of material monitoring in farmland, logistics, storage, and other environments. Background technique [0002] In recent years, the location-aware computing of indoor objects and people, and location-based services (LBS) have become research hotspots. How to determine the location of people or objects in an indoor environment is the core issue of location-based services. Therefore, indoor positioning systems are the key to realizing location-based services. The basics. Zigbee is a low-cost, low-power, low-speed wireless connection technology. At present, the implementation of Zigbee positioning system mainly uses Chipcon's CC2430 chip and CC2431 chip with a positioning engine to realize wireless communication within a short distance. position. [000...

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): H04W4/02H04W52/02H04W52/10H04W52/24H04W64/00
CPCY02B60/50Y02D30/70
Inventor 程良伦高锐苏海武于皓田刚刘军
Owner GUANGDONG UNIV OF TECH
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