Method, relevant device and system of location and navigation of wireless sensor network nodes

A wireless sensor network and node positioning technology, which is applied in radio wave measurement systems, measurement devices, wireless communication, etc., can solve the problems of inability to meet the high-precision positioning of the blind navigation system, and the algorithm positioning accuracy is not high

Active Publication Date: 2013-04-24
THE PLA INFORMATION ENG UNIV
View PDF6 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as long as any position inside the polygon will be positioned as the position of the target node, the positioning accuracy of the algorithm is not high, and it cannot meet the high-precision positioning requirements of the blind navigation system.

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
  • Method, relevant device and system of location and navigation of wireless sensor network nodes
  • Method, relevant device and system of location and navigation of wireless sensor network nodes
  • Method, relevant device and system of location and navigation of wireless sensor network nodes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0153] Corresponding to the above (embodiment 2): the method may also include:

[0154] receiving the sensing data of the ultrasonic sensor at the server end, the ultrasonic sensor and the target node are placed in the same user terminal;

[0155] The sensing data is analyzed on the server side, and if it is judged that an obstacle is sensed, the obstacle alarm information is sent from the server side to the user terminal through the network.

Embodiment 3

[0156]Corresponding to the above (embodiment three): the method may also include:

[0157] Receiving sensing data from a three-axis acceleration sensor at the server end, the three-axis acceleration sensor and the target node are placed in the same user terminal;

[0158] The sensing data is analyzed on the server side, and if it is judged that the three axial data fluctuations of the sensing data exceed the threshold, the fall alarm information is returned to the preset terminal on the server side.

[0159] For example, the fall alarm information may specifically be audio data of a fall alarm, the terminal preset at the server end may be an audio device at the server end, and the fall alarm information is returned to the terminal preset at the server end Specifically, returning the audio data of the fall alarm to the audio device preset on the server side and playing the audio data;

[0160] or,

[0161] The fall alarm information can specifically be a control instruction f...

Embodiment 4

[0165] Also includes:

[0166] receiving the input data received by the input device of the user terminal through the network at the server side;

[0167] On the server side, the output data is sent to the user terminal for output through the network.

[0168] For example, the input data may be destination location information. Correspondingly, the server side queries the route to the destination location according to the location of the target node. Specifically, when the server side receives the input data containing the destination location information, Executed on the server side, the input data may also be an emergency call number, and correspondingly, the server end may also dial an emergency call number according to the target number included in the input data.

[0169] For another example, the input data may specifically be video data of a wireless video device received at the server side through a network, and the wireless video device and the target node are placed ...

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 method, a relevant device and a system of location and navigation of wireless sensor network nodes so as to achieve the purpose of improving locating accuracy of a navigation system. The method, the relevant device and the system of the location and the navigation of the wireless sensor network nodes comprise confirming positions of anchor nodes by receiving a beacon signal of a goal node, using an area encircled by a polygon formed by the positions of the anchor nodes as a primary area where the goal node is located at, reading induction signals of the anchor nodes, wherein the induction signals of the anchor nodes concretely change when the goal node which carries an induction source appears in an induction range of the anchor nodes, judging the positions of the anchor nodes which generate induction according to changes of the induction signals of the anchor nodes, identifying the positions of the anchor nodes which generate induction in the primary area where the goal node is located at as an exact position of the goal node, and further carrying out an navigation order according to the exact position of the goal node. The method of the location and the navigation of the wireless sensor network nodes is enabled to be high in accuracy.

Description

technical field [0001] The invention relates to the field of wireless positioning, in particular to a method for realizing wireless sensor network node positioning and navigation, and related devices and systems. Background technique [0002] One of the key technologies of the blind navigation system is positioning technology. The positioning technologies currently used in the blind navigation system include GPS / A-GPS positioning technology, infrared positioning technology, Bluetooth positioning technology, radio frequency identification positioning technology, WI-FI based positioning technology and ZigBee network based positioning technology. Among them, the non-distance centroid algorithm positioning technology based on ZigBee network is more suitable for blind people's navigation system because of its easy implementation and low hardware cost. This algorithm is a positioning algorithm based only on network connectivity proposed by Nirupama Bulusu of the University of Sou...

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): H04W64/00G01S15/93
Inventor 张效义涂启辉张大龙栾红志于宏毅尹洁欣
Owner THE PLA INFORMATION ENG UNIV
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