Distribution type joint iteration locating method applied to network node locating of sensor

Abstract

The invention relates to a distribution type joint iteration locating algorithm, in particular to a distribution type joint iteration locating method applied to network node locating of a sensor. The method solves the problems that an existing DILOC has limitation, anchor node utilization rate is low, and node energy consumption is increased. The distribution type joint iteration locating method applied to network node locating of the sensor comprises the following steps of improvement of a convex hull test method and joint locating. The distribution type joint iteration locating method can complete selection of coordinate computing nodes of unknown nodes under the condition of a small communication radius, so that node energy is saved; the number of equivalent anchor nodes located by second iteration is increased, iteration frequency is reduced, and relative precision is high. The distribution type joint iteration locating method applied to locating the sensor network node can be applied to the field of network locating of a wireless sensor.

Description

technical field [0001] The invention relates to a distributed joint iterative positioning algorithm and belongs to the field of wireless sensor network positioning. Background technique [0002] The positioning problem in wireless sensor networks is a very active research field. At present, there have been many reviews and papers published in this direction at home and abroad. The authors of these documents discuss the localization algorithms in wireless sensor networks in various situations, analyze and evaluate the advantages and disadvantages of these algorithms and the applicable environments and conditions. [0003] In many applications, one of the most important uses of wireless sensor networks is to obtain location information, because any parameter estimation without location information is meaningless. When using a wireless sensor network to sense and measure the outside world, the sensor network nodes must first know their location. The location of sensor nodes i...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the limitations of the existing distributed iterative positioning algorithm DILOC, the problem of low utilization of anchor nodes and increased node energy consumption, and provide a distributed joint iterative positioning algorithm suitable for sensor network node positioning

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