High-precision three-dimensional positioner for wireless sensor network node

A wireless sensor and three-dimensional locator technology, applied in network topology, wireless communication, advanced technology, etc., can solve the problems of increasing ranging error, increasing cumulative error, and decreasing positioning accuracy.

Inactive Publication Date: 2012-01-18
SHANDONG UNIV AT WEIHAI
View PDF1 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 3D environment, due to factors such as the increase of unknown position information and the increase of ranging errors, if the 2D positioning method is directly extended to the 3D positioning method, it is easy to cause problems such as an increase in cumulative error and a decrease in positioning accuracy.
So far, for the problem of three-dimensional positioning of wireless sensor network nodes, there is no internationally recognized good solution

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
  • High-precision three-dimensional positioner for wireless sensor network node
  • High-precision three-dimensional positioner for wireless sensor network node
  • High-precision three-dimensional positioner for wireless sensor network node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0082] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0083] The locator of the present invention is based on particle swarm optimization, and according to the obtained distance measurement equation, the positioning problem of the wireless sensor network node is transformed into an optimization problem, and the unknown node with the minimum distance measurement error is sought by the optimization method.

[0084] combine figure 1 , the three-dimensional locator of the present invention goes through the following steps successively:

[0085] Step 1: Establishment of the network

[0086] At the initial stage of the network, an ID is assigned to each sensor node, and the beacon node (Beacon Node) and unknown node (Unknown Node) are marked. Then, the beacon node sends a message to an unknown node within one hop of itself, and the content of the message includes its own ID and three-dimensio...

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 belongs to the technical field of own positioning of a wireless sensor network node and particularly relates to a high-precision three-dimensional positioner for a wireless sensor network node. Firstly, a three-dimensional target function in which a reciprocal of a range error is used as a weight is defined; during solving of range equations, an equation with a minimum ranged value is selected as a public power decreasing equation which has the lowest probability of noise pollution; power decreasing is realized by subtracting the selected public power decreasing equation from other equations in the range equations; then optimized solving is performed on the target function by using a particle swarm optimization method; and finally, the acquired optimal solution is used as a coordinate of an unknown node. The three-dimensional positioner is high in positioning precision, the method is simple and easy to implement, and the three-dimensional positioner has the advantages of higher error tolerance capability and good application prospect.

Description

technical field [0001] The invention belongs to the technical field of self-positioning of wireless sensor network nodes, and in particular relates to a high-precision three-dimensional locator of wireless sensor network nodes. Background technique [0002] Wireless sensor network integrates sensor technology, wireless communication technology and integrated circuit technology. It has attracted extensive attention of researchers and has been widely used in many fields such as military security, environmental monitoring, geological exploration and industrial control. [0003] Sensor network nodes are both information routers and information transmitters, so they are the most important components of wireless sensor networks. In practice, monitoring data without location information is usually meaningless, and determining the location of the node collecting data is one of the most basic functions of wireless sensor networks. Usually, a wireless sensor network has a large numbe...

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): H04W64/00H04W84/18
CPCY02B60/50Y02D30/70
Inventor 董恩清柴延泽刘晓军曹海
Owner SHANDONG UNIV AT WEIHAI
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