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第页共NUMPAGES5页燕山大学2013年秋季学期研究生课程试卷课程名称：网络控制理论与技术考试时间：2013年11月19日学院：电气工程学院专业：模式识别与智能系统学号：S13081104012姓名：李勇第页共NUMPAGES5页题号12345678910总分得分Chooseoneofthefollowingtopicsandgiveanovervieworanapplicationrelatedtothekeywords.Controltheoryincommunicationnetworks.TechniqueandapplicationofWirelessSensorNetworks(WSN).NetworkedControlSystems(NCS)ThetypicalapplicationinInternetofThings(IoT)Note:youcangivethereportinEnglishorChinese.Answer:Ichoosethethirdtopic:NetworkedControlSystems(NCS).1.HistoryandIntroductiontoNetworkControlSystemNetworkedcontrolsystems(NCS)havebeenoneofthemainresearchfocusesinacademiaaswellasinindustrialapplicationsformanydecades.NCShastakentheformofamultidisciplinaryarea.Acontrolsystemisadeviceorsetofdevicestomanage,command,directorregulatethebehaviorofotherdevicesorsystems.Inengineeringandmathe-matics,controltheorydealswiththebehaviorofdynamicalsystems.Althoughcontrolsystemsofvarioustypesdatebacktoantiquity,amoreformalanalysisofthefieldbeganwithadynamicsanalysisofthecentrifugalgovernor,conductedbythefamousphysicistMaxwellentitled“OnGovernors.”Anotableapplicationofdynamiccontrolwasintheareaofmannedflight.TheWrightbrothersmadetheirfirstsuccessfultestflightsandweredistinguishedbytheirabilitytocontroltheirflightsforsubstantialperiods.Controloftheairplanewasnecessaryforflightsafety.Formanyyears,researchershavegivenuspreciseandoptimumcontrolstrategiesemergingfromclassicalcontroltheory,startingfromopen-loopcontroltosophisticatedcontrolstrategiesbasedongeneticalgorithms.Developmentofcontrolsystemsmainlythroughthedirectdigitalcontrolsystems,distributedcontrolsystems,fieldbuscontrolsystemthesestages,thedevelopmentofnetworkcontroltechnologyfromthedistributedcontrolsystemreallybegan.Theadventofcommunicationnetworks,however,introducedtheconceptofremotelycontrollingasystem,whichgavebirthtonetworkedcontrolsystems.TheclassicaldefinitionofNCScanbeasfollows:Whenatraditionalfeedbackcontrolsystemisclosedviaacommunicationchannel,whichmaybesharedwithothernodesout
