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Management method of wireless sensor network nodes

A wireless sensor and network node technology, applied in data exchange network, transmission system, digital transmission system, etc., can solve the problems of low target positioning accuracy, high communication burden, and large computing burden, so as to eliminate low-performance nodes and reduce computing power. Burden, the effect of reducing the range of nodes

Inactive Publication Date: 2008-01-09
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a wireless sensor network node management method, which can effectively solve the technical defects of the existing node management method, such as large calculation burden, high communication burden and low target positioning accuracy.

Method used

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  • Management method of wireless sensor network nodes
  • Management method of wireless sensor network nodes
  • Management method of wireless sensor network nodes

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0046] Fig. 1 is the flow chart of the embodiment of wireless sensor network node management method of the present invention, specifically:

[0047] Step 10, divide all nodes into m regions according to the directional relationship between the nodes and the predicted position of the target;

[0048] Step 20. Select k nodes closest to the target in each area, select n nodes closest to the target among all remaining nodes in the entire area, and use the method of full traversal to select the node with the smallest cost function from the above selected nodes Node combination, join the first candidate set;

[0049] Step 30, counting the number of nodes selected into the first candidate set and the number of nodes not selected into the first candidate set in each area;

[0050] Step 40. Select c in each area j nodes form the second candidate set, and c j =fix[t j ×(1-p×s j )], where c j is the number of nodes selected into the second candidate set in region j, t j is the num...

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Abstract

The method comprises: 10) dividing all nodes into m areas; 20) selecting k nodes nearest to target from each area, and selecting n nodes nearest to the target from all areas; selecting the nodes with least cost function to participate the first candidate set from all nodes; 30) counting the amount of the selected nodes in the first candidate set; 40) selecting cj nodes from each area to form a second candidate set; 50) selecting the nodes capable of making the first candidate set have least cost function from the second candidate set; 60) deciding if the amount of the nodes is less than the amount of working nodes; if yes, then executing step 30; otherwise, ending the procedure.

Description

technical field [0001] The invention relates to a wireless sensor network node management method applied to passive target tracking, in particular to a node management method that can provide stable target positioning performance, ensure balanced consumption of node energy and prolong the overall survival time of the network. Background technique [0002] With the rapid development of technologies such as wireless communication, integrated circuits, sensors, and micro-electromechanical systems (MEMS), it is possible to mass produce low-cost, low-power, multi-functional miniature wireless sensors. These miniature wireless sensors have wireless communication, data Acquisition and processing, collaboration and other functions. The wireless sensor network (hereinafter referred to as the wireless sensor network) is organized by many of these sensor nodes. The nodes in the wireless sensor network can be randomly or specifically arranged in the target environment, and the nodes are...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/28
Inventor 徐桢张军芮立扬
Owner BEIHANG UNIV
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