Wireless sensor network node locating method and device

A wireless sensor and network node technology, applied in positioning, measuring device, wireless communication and other directions, can solve the problems of low accuracy of node positioning method and difficult to meet the requirements of practical applications, and achieve improved positioning accuracy, low energy consumption, The effect of low hardware cost

Active Publication Date: 2017-08-11
JIANGXI UNIV OF SCI & TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the accuracy of the non-ranging node positioning method is low, and its positioning accuracy can still meet the application requirements in an ideal environment, but its positioning accuracy is difficult to meet the requirements of practical applications when applied on complex terrain in mountainous areas

Method used

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  • Wireless sensor network node locating method and device
  • Wireless sensor network node locating method and device
  • Wireless sensor network node locating method and device

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Embodiment Construction

[0044] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] see figure 1 , figure 1 It is a flow chart of a wireless sensor network node positioning method provided by an embodiment of the present invention, the method includes:

[0046] S1: For each anchor node on the area to be detected, calculate the sum of horizontal distances from the anchor node to other anchor nodes on the area to be detected according to the plane coordinates of the anchor node, and calculate the sum of the minimum hops from it to other anchor nodes And the sum of the horizontal distances calculates its average horizontal distance per hop;

[0047] S2: For each anchor node, calculate its horizontal estimated distance to other anchor nodes according ...

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Abstract

The invention discloses a wireless sensor network node locating method and a device. The method comprises the following steps: S1, calculating the average per-hop horizontal distance of each anchor node in a to-be-detected area; S2, calculating the average hop distance correction value of each anchor node; S3, calculating the corrected average per-hop horizontal distance of each anchor node according to the average hop distance correction value and the average per-hop horizontal distance thereof; S4, calculating the horizontal distance from an unknown node to an anchor node around the unknown node, and determining the plane coordinates of the unknown node according to the horizontal distance and the plane coordinates of the anchor node around the unknown node; and S5, determining the 3D coordinates of the unknown node according to a 2D electronic grid model and a 3D electronic grid model of the to-be-detected area and the plane coordinates of the unknown node. The precision of location in mountainous terrains can be improved greatly. The requirements of practical application can be satisfied.

Description

technical field [0001] The invention relates to the technical field of wireless sensor network positioning, in particular to a wireless sensor network node positioning method and device. Background technique [0002] my country's mountainous terrain (including hills and plateaus) accounts for 69.1%, with high forest coverage and rich mineral resources, but the mining of minerals easily causes environmental pollution. my country's geological conditions are complex, tectonic activities are frequent, landslides, debris flows and ground fissures and other disaster hazards are many and widely distributed, and they are sudden and destructive, making it difficult to prevent them. one of the countries. Therefore, it is of great significance to carry out monitoring and early warning research on environmental monitoring, forest fire prevention, and landslides. [0003] The emergence of wireless sensor network (Wireless Sensor Network, WSN) has aroused widespread concern all over the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/14
Inventor 胡中栋王振东王俊岭曾珽易涛
Owner JIANGXI UNIV OF SCI & TECH
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