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Intelligent ranging and positioning method for wireless sensor network

A wireless sensor and network intelligence technology, applied in radio wave measurement systems, positioning, instruments, etc., can solve the problems of many iterations of relevant intelligent algorithms and low positioning accuracy, and achieve the goals of reducing energy consumption, prolonging the life cycle, and improving accuracy Effect

Inactive Publication Date: 2018-05-29
TAIYUAN UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The invention solves the problems of low positioning accuracy of existing algorithm technology and many iterations of related intelligent algorithms, and provides a wireless sensor network intelligent ranging positioning method

Method used

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  • Intelligent ranging and positioning method for wireless sensor network
  • Intelligent ranging and positioning method for wireless sensor network
  • Intelligent ranging and positioning method for wireless sensor network

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The wireless sensor network intelligent ranging positioning method is realized by the following steps:

[0044]Z1: The unknown node P receives the signal of the surrounding beacon nodes, and converts the received signal strength value into the distance value between the unknown node and the beacon node; the conversion here uses the well-known logarithmic-constant wireless signal propagation model.

[0045] Z2: Set the number of beacon nodes that the unknown node P receives signals to be m, where m≧3, and any three beacon nodes that are not collinear as a group, a total of k groups;

[0046] Z3: From the first group of beacon nodes to the kth group of beacon nodes, the coordinates of the unknown node P are calculated sequentially, and a total of k coordinates are obtained, which are expressed as (x p1 ,y p1 ),...(x pk ,y pk ). Select the uth group of beacon nodes, where u ranges from 1 to k, set the group of beacon nodes as A, B, and C, and calculate the coordinates ...

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Abstract

The invention relates to a WSN positioning technology, especially an intelligent range-finding positioning method of the WSN, and solves the problem that in the prior art the positioning precision is low and an algorithm is complex. An area value is used to determine the relative positions of an unknown node and beacon nodes, and relations between coefficients TA, TB and TC and areas are established to solve the coordinate of the unknown node P directly, and a coordinate value is optimized; and a seeker optimization algorithm (SOA) is used to further optimize the solved coordinate value. Compared with other algorithms by simulated analysis, the method of the invention improves the precision of the algorithm, reduces the complexity of the algorithm, reduces energy loss of the nodes and prolongs life periods of the nodes.

Description

technical field [0001] The invention relates to a wireless sensor network positioning technology, in particular to a wireless sensor network intelligent ranging positioning method. It is mainly used in wireless sensor networks to obtain accurate location information of sensor nodes. Background technique [0002] In recent years, the Internet of Things technology has continuously achieved new results, and has been applied to the fields of national defense, military, environmental monitoring, traffic management, medical and health care, manufacturing, disaster relief, etc. As one of the underlying technologies of the Internet of Things, wireless sensor networks have become a research area. hotspot. Among them, obtaining accurate location information through positioning algorithms is a very important content of wireless sensor networks. [0003] The intelligent algorithm has recently received high attention and is used to optimize the original algorithm, such as using the imm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/02G01S11/06
CPCG01S5/02G01S11/06
Inventor 乔学工曹建王华倩史健芳李艳萍
Owner TAIYUAN UNIV OF TECH
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