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Research On The Localization Algorithm Of The Wireless Sensor Network Based On Cloud Platform

Posted on:2019-02-07Degree:MasterType:Thesis
Country:ChinaCandidate:Z X LuFull Text:PDF
GTID:2348330542498777Subject:Electronic Science and Technology
Abstract/Summary:PDF Full Text Request
Wireless sensor network(WSN)combines sensor technology,wireless communication technology and collects data,integration,processing and transmission and It is developing from an independent single mode to integration,miniaturization,intellectualization and networking.In the application of the complex WSN,not only the data is collected,but also the location information of the source of the data needs to be precisely located.Therefore,source location occupies an indispensable position in the application of wireless sensor network as an important support technology.But traditional positioning techniques are mainly aimed at static networks and are subject to environmental restrictions.This paper studies the location technology of wireless sensor network and proposed a localization algorithm based on path planning.According to planning the path of node reasonably,based on the low cost and low energy consumption design concept,improving the positioning accuracy to a certain extent.The specific content includes the following aspects.1.The paper investigates the research status of wireless sensor network localization algorithm at home and abroad,studies the typical localization algorithm in wireless sensor network and the typical path planning method of mobile node and their advantages and disadvantages are analyzed and summarized.2.According to the advantages and disadvantages of these algorithms,Using the drone as a mobile anchor node to assist the positioning based on the fuzzy regions identified by the traditional convex programming localization algorithm.Starting from the two directions of Angle and spiral distance,two path planning methods of spiral model and line model are proposed.Both models are calculated according to the optimized maximum likelihood algorithm and compare them with the actual position.3.The algorithm is simulated by MATLAB and proves the rationality of locating algorithm based on the comparison of relative parameters and evaluation indexes.The simulation results show that the algorithm is based on not increasing the cost of positioning,by reasonable planning of moving node path to improve the positioning accuracy.Compared with traditional convex programming algorithms,the performance has been improved significantly.
Keywords/Search Tags:wireless sensor network, source location, path planning, moving anchor node, positioning accuracy
PDF Full Text Request
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