物联网工程实施Read-网络层概述

物联网网络层介绍IntroductiontotheInternetofThingsNetworkLayer物联网四层架构

FourlayerarchitectureoftheInternetofThingsy感知层SensingLayer网络层NetworkLayer平台层PlatformLayer应用层ApplicationLayer物联网网络层功能

IoTNetworkLayerFunctionality网络层将感知层采集到的信息传递给物联网云平台，还负责将物联网云平台下发的命令传递给应用层，具有链接效应。网络层主要通过物联网、互联网和移动通信网络传输大量信息。IttransmitstheinformationcollectedbythesensinglayertotheIoTcloudplatform,andisalsoresponsiblefortransmittingcommandsissuedbytheIoTcloudplatformtotheapplicationlayer,whichhasalinkeffect.ThenetworklayermainlytransmitsalargeamountofinformationthroughtheInternetofThings,theInternet,andmobilecommunicationnetworks.

物联网网络层技术

InternetofThingsNetworkLayerTechnology网络层主要技术是物联网通信和组网技术。Themaintechnologiesofthenetworklayerare

InternetofThingscommunicationandnetworkingTechnology.物联网网络层技术

InternetofThingsNetworkLayerTechnology在物联网中，它的形式可以是有线、无线网络，可以是短距离的网络，如NFC、Wi-Fi、Bluetooth、ZigBee等。也可以是长距离的网络，如LoRa、NB-IoT、4G、5G等；也可以是公司专用的、公共网络；也可以是LAN、Internet等。针对现实的物联网应用，也可将以上网络组成混合网络。技术重点是无线通信和组网技术及其接入技术。IntheInternetofThings,itcantaketheformofwiredorwirelessnetworks,aswellasshortdistancenetworkssuchasNFC,WiFi,Bluetooth,ZigBee,etc.Itcanalsobealong-distancenetwork,suchasLoRa,NBIoT,4G,5G,etc;Itcanalsobeacompanyspecific,publicnetwork;ItcanalsobeaLAN,Internet,etc.Forreal-worldIoTapplications,theabovenetworkscanalsobecombinedintoahybridnetwork.Thetechnicalfocusisonwirelesscommunicationandnetworkingtechnology,aswellastheiraccesstechnology.物联网网络层技术

InternetofThingsNetworkLayerTechnology无线通信技术是物联网中最活跃的一部分，构成了个体网络。通常使用的Wi-Fi、Bluetooth、ZigBee、RFID、NFC等技术各有所长。在远程通信中，通常采用的通信技术主要有移动通信技术和卫星通信技术等。近距通讯网络与远程通讯网络常常需要使用接入技术与因特网相连。接入网包括光纤接入、无线接入、以太网接入、卫星接入等各类接入方式。WirelesscommunicationtechnologyisthemostactivepartoftheInternetofThings,formingindividualnetworks.ThecommonlyusedtechnologiessuchasWiFi,Bluetooth,ZigBee,RFID,NFC,etc.eachhavetheirownstrengths.Inremotecommunication,thecommonlyusedcommunicationtechnologiesincludemobilecommunicationtechnologyandsatellitecommunicationtechnology.CloserangecommunicationnetworksandremotecommunicationnetworksoftenrequiretheuseofaccesstechnologytoconnecttotheInternet.Theaccessnetworkincludesvariousaccessmethodssuchasfiberopticaccess,wirelessaccess,Ethernetaccess,satelliteaccess,etc.物联网网络层设备

InternetofThingsNetworkLayerDevices物联网网关充当网络路由器，在设备和云之间路由数据，它将出站的物联网数据进行预处理后发送到云端，而入站流量用于设备管理任务。TheIoTgatewayactsasanetworkrouter,routingdatabetweendevicesandthecloud.ItpreprocessesoutboundIoTdataandsendsittothecloud,whileinboundtrafficisusedfordevicemanagementtasks.IoTGateway物联网网络层设备

InternetofThingsNetworkLayerDevices组建无线局域网时使用路由器、交换机、AC、AP设备。WhenbuildingawirelessLAN,userouters,switches,AC,andAPdevices.routerswitch智慧城市网络层设计方案

DesignSchemeofIoTNetworkLayer接入层AccesslayerSerialServerLPWANbasestationRFID

GatewayIPv4-IPv6汇聚层DistributionlayerPrivatenetworkwirednetworkwireless