简介：ThepaperdescribesthevariousenergymanagementtechniquesthatcanbeimplementedforamodernelectricvehiclebyusingMATLAB/Simulink.TheRenaultTwizyvehicleisconsideredforMATLABsimulation.Regenerativebrakingtechniqueisdiscussed,inwhichthekineticenergyisconvertedtoelectricitytochargethebatteryofthevehiclewhenthebrakesareappliedorwhenthevehicleismovingdownthehill.Asolarphotovoltaic(PV)ontheroof-topofthevehicleisimplementedtochargethebatteryusedinthevehicle.Thesimulationresultsarehighlightedandenergymanagementstrategiesarepresented.Theresultsshowedthatthespeedcontrolofdirectcurrent(DC)motorduringthemotoringmodeandregenerativebrakingmodewassuccessfullyachievedbyusingabi-directionalDC-DCconverterandaproportional-integral(PI)controlleratvariousreferencespeedssetbytheuserbyapplyingavariableloadtorquestothemotor.ThesizeofsolarPVonroof-topofthevehiclewasfoundtobe280Wthatchargedthe48Vbatteryofthevehiclebyusingabi-directionalDC-DCconverter,whichwasevaluatedbyusingMATLAB/Simulink.

简介：Withthedevelopmentofsmartgrid,residentshavetheopportunitytoscheduletheirhouseholdappliances(HA)forthepurposeofreducingelectricityexpensesandalleviatingthepressureofthesmartgrid.Inthispaper,weintroducethestructureofhomeenergymanagementsystem(EMS)andthenproposeapoweroptimizationstrategybasedonhouseholdloadmodelandelectricvehicle(EV)modelforhomepowerusage.Inthisstrategy,theelectricvehiclesarechargedwhenthepriceislow,andotherwise,aredischarged.Byadoptingthiscombinedsystemmodelunderthetime-of-useelectricityprice(TOUP),theproposedschedulingstrategywouldeffectivelyminimizetheelectricitycostandreducethepressureofthesmartgridatthesametime.Finally,simulationexperimentsarecarriedouttoshowthefeasibilityoftheproposedstrategy.Theresultsshowthatcrossovergeneticparticleswarmoptimizationalgorithmhasbetterconvergencepropertiesthantraditionalparticleswarmalgorithmandbetteradaptabilitythangeneticalgorithm.

简介：Thebuildingsectoranditsheatingandcoolingrepresentoneofthemajorconsumerofenergyworldwide.Simultaneously,theshareoffluctuatinggenerationofrenewableenergiesintheenergymixincreases.Thereforestorageanddemandsidemanagementtechnologiesarerequired.Thenewadaptiveandpredictivecontrolalgorithmforthermallyactivatedbuildingsystems(TABS)basedonmultiplelinearregression(AMLR)presentedinthispaperenablestheapplicationofdemandsidemanagement(DSM)strategies.Basedonsimulations,differentstrategieshavebeencomparedwitheachother.ByapplyingtheAMLRalgorithm,electricityenergycostsavingsof38%couldbeachievedcomparedtotheconventionalcontrolstrategyforTABS,whileincreasingthethermalcomfort.Atthesametime,thermalenergydemandcanbereducedintherangebetween4%to8%,andpumpoperationtimefrom86%to89%.

简介：Thepapergivesanoverviewontheneedforsmartcouplingforbatterymanagementingridintegratedrenewableenergysystem(RES).Gridintegratedphotovoltaic(PV)batterysystem,asbeingpopularandextensivelyusedhasbeendiscussedinthepaper.SmartcouplingreferstointelligentgridintegrationsuchthatitcanforeseelocalnetworkconditionsandissuebatterypowerflowmanagementstrategyaccordinglytoshavethepeakPVandpeakload.Therefore,aneedforpredictiveenergymanagementarisesforsmartintegrationtothegridandsupervisionofthepowerflowinaccordancetothegridconditions.ThisisalsoarunningprojectattheInstituteofEnergySystems(INES),OffenburgUniversityofAppliedScience,GermanysinceJanuary,2015.Thepapershouldprovideinsightstothemotivation,needandgivesanoutlooktothefeaturesofdesiredpredictiveenergymanagementsystem(PEMS).

简介：ThispaperpresentsanopportunityforenergymanagementwithanintegratedphotovoltaicandwindfarmfortheenergyandeconomicaspectsofthecommercialarealocatedinPutrajaya.Theenergyeconomyaccessionconformingtothewindspeed,temperature,solarirradiation,andenergyconsumptiononadailybasisistakenintoconsideration.Designanalysisisdonethroughtheindustrystandardnumericaltool.Fromtheresultanalysis,therecommendedratioofrenewableshareminimizingstresstotheelectricgridisproposed.Accordingtothesolutionsobtainedfromthenumericaldesigntool,photovoltaicisrecommendedtobemoreenergyefficientandeconomicallyviableincomparisonofthefullycrowdedwindfarm.Fromtheproposedsolutions,thephotovoltaicisabletoprovide51%oftheenergyconsumedanditcostsRM0.365perkW/h.

简介：Toolmanagementisnotasingle,simpleactivity,itiscomprisedofacomplexsetoffunctions,especiallyinaflexiblemanufacturingsystem(FMS)environment.Theissuesassociatedwithtoolmanagementincludetoolrequirementplanning,toolreal-timescheduling,toolcribmanagement,toolinventorycontrol,toolfaultdiagnosis,tooltrackingandtoolmonitoring.Inordertomaketoolsflowinto/outofFMSefficiently,thisworkisaimedtodesignaknowledge-baseddecisionsupportsystem(KBDSS)fortoolmanagementinFMS.Firstlyanoverviewoftoolmanagementfunctionsisdescribed.ThenthestructureofKBDSSfortoolmanagementandtheessentialagentsinthedesignofKBDSSarepresented.FinallytheindividualagentsofKBDSSarediscussedfordesignanddevelopment.

简介：活动性支持上的同样不同的要求将被多样化的通讯情形在第五代(5G)介绍，在需求活动性管理上被提出简化发信号的过程，还原剂终端电源消费，等等改进网络效率。为了在5G在需求活动性管理上启用，联网，驾驶的活动性(MDNS)当为不同活动服务设定网络时，网络切被建议，它考虑单个活动性支持要求。在MDNS框架以内，要求的活动性支持的实际层次被一个活动性描述系统决定，并且与相应活动性管理计划联网片模板被一个网络片描述函数定义。由用具体例子说明，网络切，每个活动终端能与最适当的活动性管理计划被指导到网络片。基于这，一个原型被实现验证MDNS框架的可行性，即与不同活动性管理创造多重网络片策划。另外，平均处理一个活动性事件花费的性能评估为建议MDNS框架被进行，长期的进化(LTE)系统，和操作好处包括效率和可伸缩性被分析。

简介：这篇文章在端对端的交换子在异构的收音机存取技术(老鼠)之中为联合收音机资源管理(JRRM)作为一条自治途径介绍基因算法(GA)可计算的系统。联合会话承认控制(JOSAC)和带宽分配作为基因算法的操作与某些明智的修正做的一个特定的决定被联合。建议算法在下列二个条件上被触发。当一个会议被开始时，让会议在最适当的老鼠上宿营并且为需要的服务选择最合适的带宽被触发。当一个会议终止时，通过移交调整进行中的会议的分发也被用来。这将为最好的系统表演增加JRRM控制器的调整频率。模拟结果显示建议自治JRRM不仅有效地策划移交预定，而且完成很好的还原剂在光谱用途和堵住的概率之间的交易。

简介：Theonlinesocialnetworks(OSNs)offerattractivemeansforsocialinteractionsanddatasharing,aswellasraiseanumberofsecurityandprivacyissues.Althoughcurrentsolutionsproposetoencryptdatabeforesharing,theaccesscontrolofencrypteddatahasbecomeachallengingtask.Moreover,multipleownersmayenforcedifferentaccesspolicytothesamedatabecauseoftheirdifferentprivacyconcerns.Adigitalrightsmanagement(DRM)schemeisproposedforencrypteddatainOSNs.Inordertoprotectusers'sensitivedata,theschemeallowsusersoutsourceencrypteddatatotheOSNsserviceproviderforsharingandcustomizetheaccesspolicyoftheirdatabasedonciphertext-policyattribute-basedencryption.Furthermore,theschemepresentsamultipartyaccesscontrolmodelbasedonidentity-basedbroadcastencryptionandciphertext-policyattribute-basedproxyre-encryption,whichenablesmultipleowners,suchastaggeduserswhoappearinasingledata,customizetheaccesspolicycollaboratively,andalsoallowsthedisseminatorsupdatetheaccesspolicyiftheirattributessatisfytheexistingaccesspolicy.Securityanalysisandcomparisonindicatethattheproposedschemeissecureandefficient.

简介：Wearabledevicesbecomepopularbecausetheycanhelppeopleobservehealthcondition.Thebatterylifeisthecriticalproblemforwearabledevices.Thenon-volatilememory(NVM)attractsattentioninrecentyearsbecauseofitsfastreadingandwritingspeed,highdensity,persistence,andespeciallylowidlepower.Withitslowidlepowerconsumption,NVMcanbeappliedinwearabledevicestoprolongthebatterylifetimesuchassmartbracelet.However,NVMhashigherwritepowerconsumptionthandynamicrandomaccessmemory(DRAM).Inthispaper,weassumetousehybridrandomaccessmemory(RAM)andNVMarchitectureforthesmartbraceletsystem.Thispaperpresentsadatamanagementalgorithmnamedbraceletpower-awaredatamanagement(BPADM)basedonthearchitecture.TheBPADMcanestimatethepowerconsumptionaccordingtothememoryaccess,suchassamplingrateofdata,andthendeterminethedatashouldbestoredinNVMorDRAMinordertosatisfylowpower.TheexperimentalresultsshowBPADMcanreducepowerconsumptioneffectivelyforbraceletinnormalandsleepingmodes.

简介：CognitiveRadio(CR)systembasedonOrthogonalFrequencyDivisionMultipleAccess(OFDMA),suchasWirelessRegionalAreaNetworks(WRAN)andWorldwideInteroperabilityforMicrowaveAccess(WiMAX),oftenattempttoimproveperformanceviadynamicradioresourcemanagement,whichischaracterizedasconcurrentprocessingofdifferenttrafficandnondeterministicsystemcapacity.Itisessentialtodesignandevaluatesuchcomplexsystemusingpropermodelingandanalysistools.Inthepreviouswork,mostofthecommunicationsystemsweremodeledasMarkovChain(MC)andStochasticPetriNets(SPN),whichhavetheexplicitlimitationinevaluatingadaptiveOFDMACRsystemwithwideareatraffic.Inthispaper,wedevelopanexecutabletop-downhier-archicalColoredPetriNet(CPN)modelforadaptiveOFDMACRsystem,andanalyzeitsperformanceusingCPNtools.TheresultsdemonstratethattheCPNcanmodeldifferentradioresourcemanage-mentalgorithmsinCRSystems,andtheCPNtoolsrequirelesscomputationaleffortthanMarkovmodelusingMatlab,withitsflexibilityandadaptabilitytothetrafficswhicharrivalintervalandprocessingtimearenotexponentiallydistributed.

简介：Thispaperpresentsthedesignandimplementationofanenergymanagementsystem(EMS)withwavelettransformandfuzzycontrolforaresidentialmicro-grid.Thehybridsysteminthispaperconsistsofawindturbinegenerator,photovoltaic(PV)panels,anelectricvehicle(EV),andasupercapacitor(SC),whichisabletoconnectordisconnecttothemaingrid.Thecontrolstrategyisresponsibleforcompensatingthedifferencebetweenthegeneratedpowerbythewindandsolargeneratorsandthedemandedpowerbytheloads.Wavelettransformdecomposesthepowerdifferenceintoasmoothedcomponentandafastfluctuatedcomponent.Thecommandapproachusedforfuzzylogicrulesconsidersthestateofcharging(SOC)ofEV,renewableproduction,andtheloaddemandasparameters.Furthermore,thecommandrulesaredevelopedinordertoensureareliablegridwhentakingintoaccounttheEVbatteryprotectiontodecidetheoutputpoweroftheEV.ThemodelofthehybridsystemisdevelopedindetailunderMatlab/Simulinksoftwareenvironment.

简介：

简介：ThispaperpresentsaDynamicCross-layerDataQueueManagementapproach(DC-DQM)basedonprioritytoaddresstheprioritydeviationprobleminDelay-TolerantMobileSensorNetworks(DT-MSNs).Receiver-drivendatadeliveryschemeisusedforfastresponsetodatatransfers,andaprioritybasedinteractionmodelisadoptedtoidentifythedatapriority.Threeinteractiveparametersareintroducedtoprioritizeanddynamicallymanagedataqueue.Theexperimentalresultsshowthatitcanamelioratedatadeliveryratioandachievegoodperformanceintermsofaveragedelay.

简介：异构的网络(het网)是推进的长期的进化的部分(LTE--一)学习条款并且与不同重叠范围区域的房间的混合物代表细胞的推广，例如，很多个继电器和微微房间在一样的频率由一个宏房间覆盖了。平衡的交通和干扰管理为LTE在het网设计被要求--维持系统性能的A。在这份报纸，我们建议集中于减少有效资源费用并且在多域het网减轻合作隧道干扰的一个内部域的合作交通平衡计划。我们首先在het网建立了多域的概念并且把合作隧道干扰合并到平衡计划的建议交通。然后，我们为最小化有效资源费用作为一个多域交通资源优化问题为交通平衡问题建模。为平衡计划的建议交通的详细实现被设计。在数字评估，基因算法(GA)作为一个优化方法被用来证明全部的有效资源费用显著地通过我们平衡计划的建议内部域的交通被减少，与平衡计划的intra域交通作比较。43%资源费用被节省。在系统水平模拟，信号干扰噪音比率(SINR)和产量的性能结果证明建议计划在het网在干扰管理有大优点。

简介：摘要目前国家经济发展越来越快，全球化程度逐渐提高，通信技术也必须紧跟时代的脚步研新发展。有线通信是人们经常使用的也是发展最早的一种通信方法，在现实生活中被应用于广大的行业中，然而，其原材料成本较高，实际使用效果也不太理想，已经无法满足人们对网速提出的要求，无法跟上时代的脚步。因此，光纤接入技术被研发出来，相比传统材料，不仅仅降低了行业成本，也大大提高了通信效果。光纤接入网主要分为两种，对这两种技术进行更深的研发，能够了解它的使用方法和特征，有助于通信进一步的发展。

简介：摘要无人机在最近几年发展迅速，因为无人机的成本比较低，而且具有非常高的测绘精度，同时无人机体积较小，可以在很多地方进行灵活作业，从而得到了非常广泛的应用。无人机现在被广泛应用于测量测绘行业，比如可以通过无人机摄影进行特定区域的测量，这是一周非常有效的科学测量手段。本文从无人机的低空位置进行航空拍摄作为切入点，从航空摄影的测绘技术特色着手，详细分析了无人机航空摄影测量技术的多种方案，并对其在电力工程测量中的应用进行了优化，可以提供给读者作为参考。