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基于CAN总线的楼宇照明控制系统设计.docx

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基于CAN总线的楼宇照明控制系统设计 Abstract： Inrecentyears,withtherapiddevelopmentofbuildingautomation,theapplicationofCANbusinbuildinglightingcontrolsystemhasbecomemoreandmorepopular.TheCANbusbasedbuildinglightingcontrolsystemhasasignificanteffectonsavingenergy,reducingemissionsandimprovingtheworkingenvironment.Inthispaper,thekeytechnologiesandsystemdesignoftheCANbusbasedbuildinglightingcontrolsystemareintroduced. Introduction: Withthedevelopmentofsociety,thedemandforintelligentbuildingsandenergyconservationandenvironmentalprotectionhasbecomeincreasinglyprominent,sothebuildingautomationcontrolsystemhasbecomeahottopicintheconstructionindustry.Thelightingsystemisanindispensablepartofbuildingautomationcontrolsystem,whichisrelatedtothesafetyandcomfortofworkandlife.Inordertosaveenergy,reduceemissionsandimprovetheworkingenvironment,theuseofintelligentlightingcontrolsystemhasbecomethedevelopmenttrendoflightingcontrolsystem. TheCAN(ControllerAreaNetwork)busisafieldbusbasedonserialcommunicationprotocol,whichiswidelyusedinindustrialautomationcontrolfieldduetoitsadvantagesofhighreliability,fasttransmissionspeed,lowcostandeasymaintenance.TheCANbushasbeenappliedinbuildingautomationcontrolsystem,andhasachievedgoodresultsinenergyconservationandenvironmentalprotectionduetoitsstronganti-interferenceability,highreliabilityandexpandablefeatures. KeyTechnologies: 1.BuildingLightingControlSystemArchitecture: Thebuildinglightingcontrolsystemcanbedividedintothreelevels:thefieldlayer,thecontrollayerandthemanagementlayer.Thefieldlayerincludessensors,actuators,switchesandintelligentlightingdevices,whichareusedforlightingmanagementandcontrol;thecontrollayerismainlycomposedofcontrollers,communicationmodulesandotherequipment,whichcancommunicatewiththefieldlayerandthemanagementlayer;themanagementlayerisusedforusermanagement,parametersetting,andremotemonitoring,whichcanmakethelightingcontrolsystemmoreintegratedandintelligent. 2.CANBusCommunicationProtocol: TheCANbuscommunicationprotocolhastwomodes:themessagemod