第2章-智能家居工程規(guī)劃設(shè)計(jì)12-translate

OverallnetworkrulesforIoTsystemintegrationprojects:planningprinciplesTheplannednetworksystemshouldconsidersecurityissuessuchasnetworkantivirus,hackerprevention,anddataavailabilitytodisruptthesystemTheplannednetworksystemshouldadoptopenstandardsandtechnologies,followingnationalstandards,andsomeprojectsystemsshouldalsofollowinternationalstandardsTheplannednetworksystemshouldbestableandreliable,ensuringthatthenetworksystemhashighaveragetimebetweenfailuresandlowaveragefailurerateTheplannednetworksystemshouldusemainstreamproductsandtechnologiestoensuregoodcompatibilityandscalabilityofthesystemOverallNetworkPlanningforIoTSystemIntegrationProjectNetworktopologyreferstothephysicallayoutofvariousdevicesinterconnectedbytransmissionmedia,whichreferstothewayinwhichcomputersandotherdevicesinthenetworkareconnected.Thetopologydiagramprovidesthenetworkconfigurationandconnectionsbetweennetworkserversandworkstations.Itsstructuremainlyincludesstarstructure,ringstructure,busstructure,distributedstructure,treestructure,meshstructure,honeycombstructure,etc.ExampleofanetworktopologydiagramforacertainparkOverallNetworkPlanningforIoTSystemIntegrationProjectlimitedbroadcast255.255.255.255directedbroadcast192.168.1.255/24Localloopbacktestaddress127.0.0.1DHCPFaultAllocationAddress169.254.x.xAllmulticasthosts224.0.0.1Allmulticastrouters224.0.0.2Privatenetworkaddress10.0.0.0/8172.16.0.0/12192.168.0.0/16OverallNetworkPlanningforIoTSystemIntegrationProject:SpecialIPAddressbasicprincipleItisrecommendedtoassignaClassCaddresstoeachVLAN,withnomorethan1000hostsperVLAN,otherwisethebroadcastdomainwillbelargeandsecurityissueswillbeprominentinthelaterstageOverallNetworkPlanningforIoTSystemIntegrationProject:IPAddressPlanningPrinciplesAggregationprincipleTheplannedIPaddressesineachsegmentcanbesummarizedforrouting,simplifyingroutingentriesEasytomanageprincipleSeeingtheIPaddressindicateswhetherthisisaterminaloraswitch,andwhichregionitislocatedinOverallNetworkPlanningforIoTSystemIntegrationProjectDeterminethenumberofsubnetsEstimatethenumberofhostsineachsubnetCalculatethenumberoflegitimatehostIPsforexistingsubnetsCalculateeachsubnetnumberCalculatethebroadcastaddressofeachsubnetsegmentCalculatethelegalhostIPaddressSummaryDesignofSmartHomeSystemHigh-LevelSystemDesignSystemOverview家居需求室內(nèi)環(huán)境感知需求室內(nèi)環(huán)境舒適度調(diào)節(jié)需求家居設(shè)備自動(dòng)控制需求居家防護(hù)安全需求居家門禁安全需求家居能耗管理需求家居實(shí)時(shí)監(jiān)控需求家居特殊場景需求個(gè)性化需求OutlineDesignOverallframeworkdesign感知層通過控制類傳感器實(shí)現(xiàn)，采集、控制、安防等各種傳感器設(shè)備的數(shù)據(jù)采集與控制由無線通信節(jié)點(diǎn)CC2530單片機(jī)進(jìn)行控制。網(wǎng)絡(luò)層感知層節(jié)點(diǎn)同網(wǎng)關(guān)之間的無線通信通過ZigBee方式實(shí)現(xiàn)，網(wǎng)關(guān)同智云服務(wù)器、上層應(yīng)用設(shè)備間通過計(jì)算機(jī)網(wǎng)絡(luò)進(jìn)行數(shù)據(jù)傳輸。平臺(tái)層平臺(tái)層主要是互聯(lián)網(wǎng)提供的數(shù)據(jù)存儲(chǔ)、交換、分析功能，平臺(tái)層提供物聯(lián)網(wǎng)設(shè)備間基于互聯(lián)網(wǎng)的存儲(chǔ)、訪問、控制。應(yīng)用層應(yīng)用層主要是物聯(lián)網(wǎng)系統(tǒng)的人機(jī)交互接口，通過PC端、移動(dòng)端提供界面友好、操作交互性強(qiáng)的應(yīng)用。OutlineDesignEngineeringframeworkstructureAndroidsystemIntelligentGatewayServiceProgramLinuxkerneldriverSerialportrfidreaderAccesscontrolswitchelectromagneticlock360infraredremotecontrolRelaygroupSmartsocketCombustiblegassensorflamesensorHumaninfraredsensorSignallightcontrollerWindowmagneticsensorIlluminationsensorairqualitysensoripcameraAndroid3G智能網(wǎng)關(guān)zigbeenetworkCloudPlatformDataCenterRealtimedatapushHistoricaldatastorageTCP/IPCloudServiceConfigurationAndroidUserControlProgramAndroidsyst