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时间:2019-03-03
《基于fpga的可重构无线传感器网络节点设计》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第10卷第16期2010年6月科学技术与工程V01.10No.16June20101671—1815(2010)16—4005—04ScienceTechnologyandEngineering⑥2010Sci.Tech.Engng.基于FPGA的可重构无线传感器网络节点设计徐兴王卫星岳学军(华南农业大学工程学院,广州510642)摘要提出了一种简单的基于现场可编程门阵列(FPGA)模块来实现可重构无线传感器网络节点的方案。与传统方案相比,新方案较为精简,价格低廉,不再需要微控制器,大大减小了节点软硬件复杂度,可实现无线传感器网络节点的快
2、速可重构设计。通过将自适应功率控制和低功耗媒体接入控制机制引入FPGA核,重构的节点大大地降低了功率消耗,充分表明提出的可重构设计方案是有效可行的。关键词无线传感器网络节点现场可编程门阵列(FPGA)可重构设计中图法分类号TN914;文献标志码AItisknownthatawirelesssensornetwork(WSN)consistsofspatiallydistributedautonomoussensorsto1FPGA-basednodedesigncooperativelymonitorl~hysicalorenvironm
3、entalcondi—tions,suchastemperature,sound,vibration,pressure,1.1TraditionalFPGAbasednodem0tionorD0Uutants[·2。Currently,theuseofFPGAformodularembed—.ThelatestI.eseaI℃herandad.vancedtechnologiesusedindesigningtransceivers,mi—dedapplicationsisrapidlyincreasing.High—speedFP—GA
4、hastheadvantageofflexibilitytocreatecustomcrochipsandFPGAcores,moveUStowardalowpower,hardwarewithsuficientperformancetosatisfymostap·lowpriceandmultifunctionalwirelesssensordesign.plications.Afterimplementation,thedesigncouldbeAnFPGAconsistsofalargenumberofreconfigu—repla
5、cedbyanApplicationSpecificIntegratedCircuitrablegatesforuseinsophisticateddigitalcircuits.Tra-(ASIC)whichischeaperinlargescaleproduction.ditionallyhardwarehasneverbeenSOeasytoreconfig·NowseveralgroupsarestartingtodesignFPGA—basedureorre-develop.Designmodificationscanbeimp
6、le—nodes[:mentedquicklyandeasily.Theadvantageofbeing1.1.1EMIschoolofengineering,Moroccoreconfigurableisthatitwillreducehardwarerequire-Thisdesignisanembeddedplatformimplemen—ments.Inthelastfewyears,highlevellanguageshavetinga32bitprocessor(NIOSII)onanFPGAcorebeendeveloped
7、toallowthetranslationofalgorithms(ALTERAcyclone),externalFlashMemoryandusingdirectlyintohardwaredescriptions.ThepaperdescribesseveralinterfacessuchasSPI,UART,BusAvalonanovelwirelessnetworknodedesignschemebasedonandPIO.FPGA[引.1.1.2TyndallMoteThishardwareplatformisa25mm×25m
8、m2010年2月25日收到高等学校博士学科点专项科研基金联合stackablesystemwhichiscomposedofamicrocon·项目(200805640010)、公益性行业(农
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