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

RSSI-based method for positioning wireless sensor network node

A technology of wireless sensors and positioning methods, applied in the field of telecommunications, achieving good application prospects and high positioning accuracy

Active Publication Date: 2011-10-05
CHINA NORTH IND NO 205 RES INST
View PDF2 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a RSSI-based wireless sensor network node positioning method with high positioning accuracy and only needing to set fewer test points for the problems existing in the existing empirical model positioning method. It is suitable for the positioning of two-dimensional sensor network nodes in an outdoor flat field

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
  • RSSI-based method for positioning wireless sensor network node
  • RSSI-based method for positioning wireless sensor network node
  • RSSI-based method for positioning wireless sensor network node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] The wireless sensor network node positioning method provided by the present invention is aimed at m unknown nodes W to be measured in the coverage area of ​​a wireless sensor network in an outdoor flat open field m to locate. The specific positioning process of its first preferred embodiment includes the following steps.

[0024] Step 1: Calibrate the test point position.

[0025] First, the m unknown nodes W to be tested in the coverage area of ​​the wireless sensor network m Randomly choose an unknown node W to be tested 1 , and delineated by W 1 is the center of the circle, D' is the radius of the test area and D' is less than the farthest communication distance of the sensor network nodes, there are K beacon nodes M in the test area j (1≤j≤K) Participate in the positioning test and K≥3, in the coverage area of ​​the w...

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, which belongs to the technical field of electric communication, relates to a received signal strength indicator (RSSI)-based method for positioning wireless sensor network node. The invention is characterized in that: according to the method, an actual measured value is utilized and a piecewise linear fitting method is employed, a relation model of a propagation loss and a transmission distance is established, wherein the reality is edged in by a piecewise straight line; and then the obtained relation model is used to make a positioning calculation. With utilization of the method, the real condition of the environment can be reflected effectively, and the high positioning precision is allowed by using a few test points. The RSSI-based method for positioning the wireless sensor network node provided in the invention has high practicality, and is suitable for a two-dimensional positioning environment of an outdoor flattening open field. The RSSI-based method for positioning the wireless sensor network node provided in the invention has wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of electric communication, and mainly relates to a wireless sensor network, in particular to an RSSI-based wireless sensor network node positioning method. Background technique [0002] A wireless sensor network is a network system composed of a large number of sensor modules with wireless communication functions according to a certain network protocol. Each sensor module is called a sensor node. A typical sensor node consists of a single-chip microcomputer with wireless transceiver function and corresponding sensors, responsible for sensing specific information such as temperature and pressure. In practical applications, the information sensed by wireless sensor nodes often needs to cooperate with the location information of the node itself to be meaningful. However, wireless sensor nodes are often randomly deployed in the sensing area. Due to the relationship between cost and complexity, the positions of ...

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): H04W64/00H04W84/18
Inventor 周立君刘宇郭城于振华
Owner CHINA NORTH IND NO 205 RES INST
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