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ID:33100260
大小:7.35 MB
页数:80页
时间:2019-02-20
《徐州国家粮库无线粮情测控系统的设计与实现》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、太原理】:人。了:硕十研究生学位论文controllinggrainsituation.Inrecentyears,aswirelesssensornetworktechnologyisgraduallyappliedtothefieldofmeasuringandcontrollinggrainsituation,ithasdevelopedwirelessgrainsituationmeasuringandcontrollingsystembasedontheIEEE802.14.2technicalstandardandtheZigBeewirelessprotocolstack
2、.Thecommunicationdistanceoftheabove—mentionedwirelesssystemislimited,whichcannotmeetthedevelopmentneedsofthemodemlarge—scalegraindepot.Thegoalofthisthesisistodesignalow—powerwirelessgrainsituationmeasuringandcontrollingsystemtomeetthedevelopmentneedsofthemodernlarge—scalegraindepot.Firstly,theth
3、esisintroducedthebackground,thesignificance,andtheresearchstatusofgrainsituationmeasuringandcontrollingsystem,andthebasicconceptofwirelesssensornetwork.Secondly,throughtheanalysisofapplicationenvironmentofgrainsituationmeasuringandcontrolingsystemandthechoiceofcommunicationmode,thethesisdetermin
4、edtheoverallstmctureofwirelessgrainsituationmeasuringandcontrollingsystem.Thirdly,thethesisintroducedthehardwareandsoftwaredesignofWirelesssensornetworknode.Finally,thethesiscompletedthetestingandtheoverallevaluationofwirelessgrainsituationmonitoringandcontrolsystem.Intermsofhardwaredesign,theth
5、esisselectedSil000chipsystemproducedU.S.Siliconlabs,inc.asthemaincontrolchip.TheSil000integratesthehigh—performance,ultra—lowpowerdissipation,8bitCIP一51coremicrocontrollerC8051F9XX,andthe240—960MHzEZRadioPROSeriesRF太原理1人学硕十研究生学位论文transceiver.Itsbarrier—freetransmissiondistancereaches2.2kinandits
6、ultra-Iowpowerconsumption(thenodewhichcanbepoweredbytwobatteriescouldworkfor4-5years),whichmakeitmeetthedesignrequil’ementoflow—powerwirelessgrainsituationmeasuringandcontrollingsystemforlarge—scalegraindepot.Inaddition,thethesisalsocompletedthedevelopmentofpestsensor,whichfillstheblankofdomesti
7、cgrainsituationmeasuringandcontrolingsysteminthefieldofmonitoringpests.intermsofsoftwaredesign,thesystemusesacross—layeroptimizationcommunicationprotocol—EZMACImproved.EZMACImprovedisbasedontheEZMACPro,whichisawirelesscommun
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