Multi-point accurate positioning and tracing method for wireless sensor network

A wireless sensor and accurate positioning technology, used in satellite radio beacon positioning systems, positioning, radio wave measurement systems and other directions, can solve the problems of low accuracy and high positioning costs, and achieve the effect of wide promotion, powerful functions and good economic benefits

Inactive Publication Date: 2009-06-24
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of high positioning cost and low accuracy in wireless sensor networks

Method used

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  • Multi-point accurate positioning and tracing method for wireless sensor network
  • Multi-point accurate positioning and tracing method for wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] 1) The wireless sensor network positioning fixed node is equipped with a GPS signal receiving device, and the positioned node or mobile node has wireless transmission and reception functions;

[0022] 2) Position the fixed nodes on the same plane and place them on the peripheral vertices of a regular polygon;

[0023] 3) The positioning fixed node also receives the positioning signal of the positioned node and the mobile node when receiving the signal route of each channel, and calculates the distance between the positioning fixed node and the positioned node or the mobile node according to the energy of the positioning signal received by the positioning fixed node , the position of the positioned node is calculated by the multi-point positioning method. When the mobile node is positioned during the movement process, the fixed node calculates the positioning point by the multi-point positioning method, and the motion trajectory is drawn by multiple position points, and t...

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Abstract

The invention discloses a multi-nodal accurate positioning and tracking method of a wireless sensor network. Positioning fixed nodes in the wireless sensor network are distributed at the peak of a regular quadrangle; each node in the sensor network is used for data acquisition and transmission; the positioning fixed nodes not only are related to a data route, but also are used for receiving positioning signals transmitted by a positioned node or a tracked node; and the positioning fixed nodes are used for calculating the distance between each fixed node and the positioned node through carrying out energy statistic to the signals, transmitting the distance to the gateway node of the wireless sensor network, and transmitting the distance to a PC machine through the gateway node. After collecting the positioning signals of all the positioning fixed nodes, the PC machine is used for calculating the position of the positioned node or a mobile node by using the multi-nodal positioning method and tracing out the movement track of the mobile tracking node through software. The invention reduces the wireless positioning cost and improves the positioning accuracy and the traceability. The invention plays an active driving role in the accurate positioning of the wireless sensor network and the tracking technology development.

Description

technical field [0001] The invention relates to a multi-point accurate positioning and tracking method of a wireless sensor network. Background technique [0002] Wireless positioning and tracking technology not only has great application value in the military, but also has broad application space in the fields of agricultural and industrial production information automation and control. It is a core technology in the field of large-scale wireless sensor network data detection, target positioning, tracking, investigation, and combination with GIS. Traditional positioning and tracking technologies generally use GPS signal receivers or GPS and GPS base stations The method of forming differential positioning and tracking installs GPS signal receivers on each positioning and tracking node to receive positioning signals, which leads to defects such as high cost of positioning and tracking, low local positioning accuracy, and poor reliability. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/14G01S19/24
Inventor 何勇聂鹏程邓洪峰张伟
Owner ZHEJIANG UNIV
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