第2章-智能家居工程規(guī)劃設(shè)計(jì)13-translate

OutlineDesignFunctionalmoduledivisionOutlineDesignOverviewofHardwareSelection統(tǒng)一規(guī)劃高可用性高擴(kuò)展性高安全性高可維護(hù)性合適性?xún)r(jià)比HardwarePlatformDesignPrinciplesOutlineDesignWirelessnodeprocessorselectionCC2530isasystemlevelSoCchipproducedbyTI(TI)company,suitablefor2.4GHzIEEE802.15.4,ZigBee,andRF4CEapplications.TheCC2530includesatop-notchRFtransceiverwithexcellentperformance,anindustrystandardenhanced8051MUC,programmableflashmemoryinthesystem,8KBofRAM,andmanyotherpowerfulfeatures.Ithasdifferentoperatingmodes,makingitparticularlysuitableforsystemswithultra-lowpowerrequirements.CombinedwithTI'sindustry-leadingZigBeeprotocolstack(Z-Stack),itprovidesapowerfulandcompleteZigBeesolution.OutlineDesign強(qiáng)大無(wú)線前端。低功耗微處理器豐富的外設(shè)接口可應(yīng)用領(lǐng)域CC2530FeaturesOutlineDesignUsingwirelessmodulesastheMCUmaincontrolandonboardsignalindicatorlights;Power,battery,network,data,dualfunctionbuttons,onboardintegratedlithiumbatteryinterface,integratedpowermanagementchip,supportingbatterychargingmanagementandpowermeasurement;OnboardUSBserialport,Tiemulatorinterface,ARMemulatorinterface;OnboardUSBdebuggingserialport,Tiemulatorinterface,ARMemulatorinterface;IntegratetwoRJ45industrialinterfacesandprovidethemainchipP0_0~P0_7outputs,hardwareincludingIO,ADC3.3V,ADC5V,UART,RS485,tworelayfunctions,providingtwo3.3V,5V,12Vpoweroutputs.LiteBClassicWirelessNodeOutlineDesignThedatasentandreceivedbysensornodesshouldbecollectedthroughthecoordinator/aggregatornodesofthegatewayfortheentirenetwork;Thecoordinator/aggregatorinteractswiththesmartcloudgateway,connectingthesensornetworktothetelecommunicationsandmobilenetworksthroughtheserviceprogramsrunningonthesmartcloudgateway.Atthesametime,itpushesdatatothesmartcloudcenterandalsosupportspushingdatatothelocalLAN.AndroidGatewayOutlineDesignThecommonlyusedIoTcommunicationmethodsaresummarizedanddividedintofourcategories.WirelessNetworkDesignAnalysisOutlineDesignZigBee技術(shù)優(yōu)勢(shì)低功耗低成本低速率近距離短時(shí)延高容量高安全免執(zhí)照頻段ZigBeeTechnicalFeaturesOutlineDesignWirelessNetworkTopologyDesignstarnetworkContainsaCoordinatornodeandaseriesofEndDevicenodes.EachEndDevicenodecanonlycommunicatewiththeCoordinatornode,andcommunicationbetweentwoEndDevicenodesmustbeforwardedthroughtheCoordinatornode.OutlineDesignTreeTopologyCoordinator和Router節(jié)點(diǎn)可以包含自己的子節(jié)點(diǎn)EndDevicecannothaveitsownchildnodes;Nodeswiththesameparentnodearecalledsiblingnodes;Nodeswiththesamegrandfathernodearecalledcousinnodes;Communicationrulesintreetopology:Eachnodecanonlycommunicatewithitsparentandchildnodes.Ifdataneedstobesentfromonenodetoanother,theinformationwillbepassedupthetreepathtothenearestancestornodeandthendowntothetargetnode.Thedisadvantageofthistopologyapproachisthatinformationonlyhasauniqueroutingchannel.