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Research On The Construction And Optimization Strategy Of Smart Agricultural Communication Network

Posted on:2022-07-22Degree:MasterType:Thesis
Country:ChinaCandidate:H LiuFull Text:PDF
GTID:2493306326986159Subject:Master of Engineering
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With the popularization of the Internet of things technology(Io T)in the field of modern agriculture,it has set off a wave of smart agriculture.More and more high-precision sensors and precision decision-making control techniques are applied to the field of smart agriculture,and precision agriculture is born.With the continuous expansion of precision agriculture scale,the problem of synchronous transmission of large quantities of information is followed.Information transmission is an indispensable part of the smart agriculture industry chain.By formulating a reasonable information transmission scheme,it can effectively reduce the system capital investment and work energy consumption,and it is also the premise to ensure the integrity and timeliness of information transmission.However,there are some problems in the deployment of smart agricultural terminals and the construction of communication networks in the existing technical solutions,such as node disconnection,high energy-consumption,poor deployment flexibility,and so on.In this regard,this paper builds a set of smart agriculture suite based on wireless network technology,and constructs a hierarchical smart agriculture communication network(SACN)architecture;on this basis,aiming at the optimal deployment of SACN nodes,through the establishment of relevant mathematical models,this paper puts forward an improved Mothflame optimization algorithm(MFO)based on Voronoi Diagram(VD)and further carries out the system test and node deployment test,which is helpful for the optimization of the deployment of SACN nodes The scheme is verified by experiments and the results are analyzed.The detail are as follows:First,the intelligent agriculture system(IAS)based on Io T technology is built.It mainly includes data acquisition terminal,action equipment terminal,and remote control and decision terminal.Second,the smart agricultural wireless communication network(SAWCN)based on the Star relay network is constructed.This paper analyzes and compares the advantages and disadvantages of wired networking and wireless networking;introduces the wireless networking strategy and the selection of networking equipment;tests and selects the antenna of networking equipment in terms of Abbreviation for Voltage Standing Wave Ratio,gain,and other related parameters,and designs the related data transmission protocol.Then,the deployment model of wireless communication network nodes in smart agriculture is established.Specifically,it includes communication network full connectivity model,communication network energy consumption model,and communication network node optimal deployment model.Finally,an improved MFO algorithm VIMFO based on VD is proposed.The function verification test of the smart agriculture system,the simulation deployment test of smart agriculture communication network nodes,and related comparative experiments are carried out.The relative algorithms are evaluated from the deployment results,the number of nodes,the network connectivity,and the communication energy consumption.The experimental results show that the system meets the requirements of various functional indicators.Compared with the MFO algorithm,the improved algorithm reduces the overall network energy consumption by 10% on the basis of improving the optimization speed by 34.9%.The deployment strategy effectively reduces the communication network energy consumption and improves the life cycle of the WSNs on the premise of ensuring the full connectivity of the SACN.
Keywords/Search Tags:smart agriculture, wireless communication networks, optimal deployment of network nodes, Moth-flame optimization algorithm, Voronoi diagram
PDF Full Text Request
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