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簡(jiǎn)介：劣寶未交碩士專業(yè)學(xué)位論文基于改進(jìn)的BP神經(jīng)網(wǎng)絡(luò)對(duì)輪軌力測(cè)量技術(shù)的研究RESEARCHONMEASUREMENTTECHNIQUEOFWHEEL／RAILFORCEBASEDONIMPROVEDBPNEURALNETWORK作者張冉佳導(dǎo)師金新燦北京交通大學(xué)2015年6月學(xué)校代碼10004北京交通大學(xué)碩士專業(yè)學(xué)位論文密級(jí)公開基于改進(jìn)的BP神經(jīng)網(wǎng)絡(luò)對(duì)輪軌力測(cè)量技術(shù)的研究RESEARCHONMEASUREMENTTECHNIQUEOFWHEEL／RAILFORCEBASEDONIMPROVEDBPNEURALNETWORK作者姓名張冉佳導(dǎo)師姓名金新燦工程碩士專業(yè)領(lǐng)域機(jī)械工程學(xué)號(hào)13125897職稱副教授學(xué)位級(jí)別碩士北京交通大學(xué)2015年6月

簡(jiǎn)介：混凝土攤鋪機(jī)是近些年流行的一種路面機(jī)械，其調(diào)平裝置在整機(jī)性能中占有很重要的地位，是保證路面平整度、提高公路攤鋪質(zhì)量的關(guān)鍵。傳統(tǒng)的調(diào)平裝置采用平衡梁進(jìn)行測(cè)量，利用常規(guī)的控制方式進(jìn)行控制，取得了較好的控制效果。但為了適應(yīng)現(xiàn)代高等級(jí)公路路面攤鋪的技術(shù)精度的要求，需要不斷的改進(jìn)其控制系統(tǒng)。本文嘗試使用較先進(jìn)的傳感器及人工神經(jīng)網(wǎng)絡(luò)控制器來(lái)代替?zhèn)鹘y(tǒng)的測(cè)量和控制方式，并對(duì)其控制效果進(jìn)行模擬仿真，以期望得到較滿意的控制效果。為了達(dá)到這一目標(biāo)，本文在參考和分析大量現(xiàn)有產(chǎn)品參數(shù)的基礎(chǔ)上進(jìn)行攤鋪機(jī)調(diào)平液壓控制系統(tǒng)的選型設(shè)計(jì)。參考現(xiàn)有攤鋪機(jī)機(jī)型，在選型設(shè)計(jì)的基礎(chǔ)上設(shè)計(jì)了攤鋪機(jī)試驗(yàn)?zāi)Ｐ?，建立了調(diào)平裝置的近似數(shù)學(xué)模型，并對(duì)橫縱坡控制系統(tǒng)的穩(wěn)定性和動(dòng)態(tài)特性進(jìn)行了分析。依據(jù)其控制模型，文中進(jìn)行了直接反饋控制、常規(guī)數(shù)字PID控制系統(tǒng)的模擬仿真，確定了常規(guī)控制方式的控制參數(shù)及其控制效果，并在此基礎(chǔ)上采用神經(jīng)網(wǎng)絡(luò)逆控制方法，對(duì)調(diào)平系統(tǒng)進(jìn)行辨識(shí)和控制，并對(duì)其進(jìn)行了訓(xùn)練和計(jì)算機(jī)仿真。在研究中發(fā)現(xiàn)，傳統(tǒng)的PID控制系統(tǒng)可以取得很好的控制效果，但需經(jīng)過(guò)無(wú)數(shù)次的試湊，而參數(shù)的調(diào)整必須特別小心，非常敏感，不小心的選取都有可能使控制效果不好，產(chǎn)生振蕩，甚至失穩(wěn)。而利用BP神經(jīng)網(wǎng)絡(luò)的函數(shù)逼近能力，可以在較寬的范圍內(nèi)取得較好的控制效果。在控制的過(guò)程中，采用兩個(gè)BP網(wǎng)絡(luò)，一個(gè)作為神經(jīng)網(wǎng)絡(luò)辨識(shí)器NNI進(jìn)行辨識(shí)建模；另一個(gè)作為神經(jīng)網(wǎng)絡(luò)控制器NNC。首先將被控對(duì)象進(jìn)行離線辨識(shí)，確定NNC的初始權(quán)值再進(jìn)行神經(jīng)網(wǎng)絡(luò)在線控制，從而能夠進(jìn)一步提高系統(tǒng)的控制精度。通過(guò)對(duì)數(shù)字PID和神經(jīng)網(wǎng)絡(luò)兩種控制方式的比較可知，神經(jīng)網(wǎng)絡(luò)控制的跟蹤性能優(yōu)于數(shù)字PID控制。所以為了得到一個(gè)快速、準(zhǔn)確的自動(dòng)調(diào)平控制系統(tǒng)本文采用的神經(jīng)網(wǎng)絡(luò)控制器是可行的為進(jìn)一步對(duì)調(diào)平裝置試驗(yàn)系統(tǒng)進(jìn)行控制來(lái)提高系統(tǒng)的定位精度奠定了基礎(chǔ)。

簡(jiǎn)介：上海海事大學(xué)碩士學(xué)位論文網(wǎng)絡(luò)數(shù)字化閉路電視監(jiān)控技術(shù)在高速公路管理中的應(yīng)用姓名董雯申請(qǐng)學(xué)位級(jí)別碩士專業(yè)計(jì)算機(jī)技術(shù)指導(dǎo)教師高茂庭瞿輝20050901ABSTRACTCCTVSYSTEMHASPASTTHREEDIFFERENTDEVELOPEDSTEPSF沁M(jìn)COMPLETESIMULATIONTECH，SEMIDIGITALTECHTODIGITALTECHDIGITALCCTVSYSTEMADOPTSEMBEDDEDMULTIMISSIONINTIMECONTROLSYSTEM，WHICHMEANSITHASASSEMBLEDVIDEOCONSTRICTANDTRANSPORTPROCESSFUNCTIONSTHEDIGITALVIDEOSIGNALFROMTHECAMERAISCOMPRESSEDBYTHEHIGHPERFORMANCECONSTRICTEDMICROCHIPS，ANDTHENTRANSFERTOTHENETWORKTHROUGHINSIDEPROCESSING，ANDFINALLYREALIZESFUNCTIONSOF“DATA，AUDIO，VIDEO”TRIPLEXNETWORKSINTOONEFORMANDTHEVIDEOTODESKTOP，TOGIVETHETECHNICALSUPPORTSONEXPRESSWAY’SCONTROLANDMANAGEMENTEXPRESSWAYISTHEHIGHSPEEDTRANSPORTATIONFACILITIESOFAKINDOFMODERNIZATIONANDDIFFERENTWITHTHECITYROADEXPRESSWAYHASMANYCHARACLERISIICS，SUCHASROUTELONGERFROMSEVERALTENKILOMETERSARRIVESEVERAL100KILOMETER，LOCATETHESTRANGEMOUNTAINAREAORMOUNDTHEDISTRICT，NATURETHEENVIRONMENTBAD，HAVELONGDISTANCEBETWEENEACHMANAGEMENTSTATIONETCINCONVENIENCEOFINTHEMANAGEMENT，THEREFOREDEPENDABLE，EFFICIENTLYSUPEWISEANDCONTROLHASBECOMEMOSTIMPORTANTTOTHESYSTEMTHEMIANYANGGUANGYUANEXPRESSWAYWHOLELINELONG1355KILOMETERHASMANYMONITORING＆CONTROLPOINTSANDTHEDELIVERDISTANCEISLONGERITMEANSHIGHERDIFFICULTYTOTHEEXPRESSWAY’STRANSPORTATION＆CONTROLSYSTEMONTHEOTHERSIDEOFTHEINNOVATIONINITSSTRUCTURETHISARTICLERESEARCHESONNETWORKDIGITALCCTVSYSTEM，WHICHCONNECTEDWITHTHEWHOLEPROCESSFROMSYSTEMARCHITECTUREDESIGN。PROJECTIMPLEMENTANDSYSTEMIMPLEMENTATIONONTHENETWORKDIGITALCCTVSYSTEMOFMIANYANGGUANGYUANEXPRESSWAYTSCCS，TCSYSTEMSPROJECTAIMATTHESPECIALSITUATIONANDDEMANDSONTHEPROJECT，THISARTICLEHASANALYZEDANDDESIGNEDTHEVIDEOCOLLECTING，VIDEOTRANSPORTATIONANDCONTROLPROCESSSPECIALLY，TOUSETHESPECIALFUNCTIONFOCUSONFOLLOWINGASPECTSBASEDONSDHMSTP

簡(jiǎn)介：重慶大學(xué)碩士學(xué)位論文模糊神經(jīng)網(wǎng)絡(luò)及大斷面揭煤施工技術(shù)在公路隧道中的應(yīng)用研究姓名蔣再文申請(qǐng)學(xué)位級(jí)別碩士專業(yè)安全技術(shù)及工程指導(dǎo)教師姜德義200161重鏖盔堂堡主堂垡鯊塞．竺豎里墜一ABSTRACTWITLL恤DEVELOPMENTOFTRANSPORTATION,THECONSTRUCTIONOFHIGHWAYTUNNELUNDERCOMPLICATEDGEOLOGICCONDITIONISANEWSUBJECTTORESEARCH，INWHICHFIELDHOWTOCUTTHROUGHCOALSEEMSAFELYISAVERYIMPORTANTPROBLEMINHIGHWAYTUNNELCONSTRUCTION．NLISPAPERISMAINLYTODISCUSSTHETECHNOLOGYOFLARGESECTIONCUTTINGLLTROUGHTHECOALSEANLPUSHEDBYWHOLESECTION．WHICHISCOMBINEDWITHTHERESEARCHOFTHEKEYTECHNIQUEABOUTLONGBIGHIGHWAYCONSTRUCTIONUNDERCOMPLICATEDGEOLOGICCONDITION．NLESTUDYOBJECTOFTHISPAPERISTHECUTTINGTHROUGHCOALSEAMCONSTRUCTIONATEASTFLANKRIGHTLINEINH咂YINGSHANHIGHWAYTUNNEL．11LCMETHODOFFUZZYNEURALNETWORKFNIOISUSEDTOPREDICTFATALNESSOFTHECOALANDGASOUTBURST．THEPRESENTCONSTRUCTIONSTATUSABOUTCROSSCUTCOALSEAMINCOAHNINEISSUMMARIZED．N坨MECHANISMOFCOALANDGASOUTBURSTANDTHEMETHODOFACTUALFORECASTARETHENSTATED．ONTHESEBASES．THEFNNISPUTFORWARDTOPREDICTTLLEOUTBURSTFATALNESS．NE刪CHARACTERSOFDESCRIBINGANDPROCESSINGFUZZYPROOFSTOGETHERWITHTHECAPABILITYOFMAPPINGINFORMATIONFROMDATA,MAKESFNNCAPABLETOCATCHANDPROCESS也ERELATIONBETWEENOUTBURSTFACTORSANDOUTBURSTHAZARDOBJECTIVELY．THEREFORE．THEFNNCALLBEUSEDTOREALIZEPREDICTIONOFOUTBURSTFATALNESS．BY也EFNNMODELELECTEDANDTRAINED．也EPROBABILITYOFCOALANDGASOUTBURSTISACCURATELYPREDICTEDINCUTTINGTHROUGHCOALSEAMATEASTFLANKRIGHTLINEINHUAYINGSHANHIGHWAYTUNNEL．WITIITHEGUIDANCEOFTHESAFETYCONSTRUCTIONTECHNIQUEFLOWANDPREDICTINGRESULT．THETECHNOLOGYOFLARGESECTIONCUTTINGTHROUGHCOALSEARSPUSHEDBYWHOLESECTIONISDISCUSSEDSYSTEMATICALLYINTHISPAPER,INCLUDINGEXCAVATIONSTYLE，EXPLOSIVEDISRUPTION，SUPPORT，CONSTRUCTIONVENTILATION，CONSTRUCTIONMOUITORINGANDCONSTRUCTIONMANAGEMENT，BYWHICHTHECOALSEALSISCUTSEAMSAFELY,ECONOMICALLYANDQUICKLY．BECAUSETHEFNNCANPREDICTOUTBURSTFATALNESSACCURATELY,ITSAPPLICATIONMAYBEWIDELYEXTENDEDINTHEPREDICTIONOFOUTBURSTFATALNESS，WHICHCANALSOCONTRIBUTETOREALIZATIONOFLARGESECTIONCUTTINGTHROUGHCOALSEANLPUSHEDBYWHOLESECTION．THEREFORE，THISPAPERCALLSUPPLYSOMEVALUABLEGUIDANCEANDPRACTICALREFERENCEFORHIGHWAYTUNNELCONSTRUCTION．KEYWORDSHIGHWAYTUNNEL，F(xiàn)UZZYNEURALNETWORK，COALANDGASOUTBURSTPREDICTION，LARGESECTIONCUTTINGTHROUGHCOALSEAM

簡(jiǎn)介：北京交通大學(xué)碩士學(xué)位論文鐵通智能光網(wǎng)絡(luò)的演進(jìn)與關(guān)鍵技術(shù)研究姓名朱國(guó)東申請(qǐng)學(xué)位級(jí)別碩士專業(yè)電子與信息工程指導(dǎo)教師劉云20030801鐵通智能光網(wǎng)絡(luò)的演進(jìn)與關(guān)鍵技術(shù)研究關(guān)鍵詞傳輸網(wǎng)智能光網(wǎng)絡(luò)波長(zhǎng)變換路由SDH

簡(jiǎn)介：長(zhǎng)沙交通學(xué)院碩士學(xué)位論文網(wǎng)絡(luò)數(shù)字視頻技術(shù)在城市交通監(jiān)控上的應(yīng)用姓名何增鎮(zhèn)申請(qǐng)學(xué)位級(jí)別碩士專業(yè)道路與鐵道工程指導(dǎo)教師張起森魏武20030525ABSTRACTINTELLIGENTTRANSPORTATIONSYSTEMITSISTHEORIENTATIONOFTRANSPORTATION’SDEVELOPING、URBANINTELLIGENTTRANSPORTATIONSYSTEMCONSISTSOFSEVERALSUBSYSTEMSANDURBANTRAFFICSURVEILLANCESYSTEMISTHEKEYONEANALOGSURVEILLANCESYSTEMISAMAINMETHODFORCURRENTVIDEOSURVEILLANCEONURBANTRAFFICTHESEYEARS，DIGITALVIDEOCOMPRESSINGTECHNOLOGIESANDNETWORKDATATRANSMITTINGTECHNOLOGIESAREDEVELOPEDVERYWELLANDNETWORKBASEDDIGITALVIDEOSURVEILLANCESYSTEMONURBANTRAFFICWILLBEDEVELOPEDGRADUALLYALLSORTSOFD遮ITATVIDEOCOMPRESSINGTECHNOLOGIESTHATMAYBEUSEDINSURVEILLANCESYSTEMHAVETHEIRADVANTAGESSODOMPEG1COMPRESSINGTHEORYANDTECHNOLOGIESESPECIALLYANDMPEG1STANDARDISSELECTEDTOBETHED逗AALVIDEOCOMPRESSINGSTANDARDFORDIGITALVIDEOSURVEILLANCESYSTEMTHATBERESEARCHEDINTHISPAPERALIKINDSOFTECHNOLOGIESINCLUDINGDATATRANSMITTINGMESAANDMETHODSONNETWORK，TCP／聚IPBROADCASTINGANDTEAMBROADCASTINGANDHTTEAREUSEDFORDIGITALVIDEOTRANSMITTINGONNETWORKINTHISRESEARCH，ANAPPROPRIATEMODELFORDATATRANSMITTINGONNETWORKISSELECTEDBASEDONTHECHARACTERISTICOFVIDEOSURVEILLANCESYSTEMON醢兩繇TRAFFIC。INTHISMODELDIGITALVIDEODATAISTRANSMITTEDTHROUGHUSERDATAGRAMPROTOCOLCROPBASEDONIPTEAMBROADCASTINGANDTHISMODELWILLBEACTUALIZEDTHROUGHBEINGPROGRAMMEDBASEDONWINDOWSOPERATINGSYSTEMDESIGNINGASCIENTIFICSURVEILLANCESYSTEMMODELISAKEYSTEPFORPUTTINGVIDEOSURVEILLANCESYSTEMINPRACTICEANEXCELLENTMODELOFDIGITALVIDEOSURVEILLANCESYSTEMBASEDONTCP／委＆LABIDATATRANSMITTINGISPROPOSEDINTHISPAPERANDBASEDONIT，ANETWORKBASEDDIGITALVIDEOSURVEILLANCESYSTEMORLURBANTRAFFICISDESIGNEDFINAL墳ASOLUTIONOFNETWORKBASEDD毽鞋ALVIDEOSURVEILLANCESYSTEMONURBAN韃

簡(jiǎn)介：中北大學(xué)碩士學(xué)位論文公交線路網(wǎng)絡(luò)分析關(guān)鍵技術(shù)研究姓名李旭華申請(qǐng)學(xué)位級(jí)別碩士專業(yè)計(jì)算機(jī)應(yīng)用指導(dǎo)教師王建中20050301SUBJECTPIVOTALTECHNOLOGYRESEARCHINNETWORKANALYZEONTRAFFICLINESABSTRACTTHEGEOGRAPHICINFORMATIONSYSTEMISAGIVENANDVERYIMPORTANTSPACEINFORMATIONSYSTEMITBASESONGEOGRAPHICSPACEDATABASE，COLLECTS、MEMORIES、MANAGES、ANALYZESANDDEPICTSTHEWHOLE01“PARTIALDATAOFWHOLEORPARTIALEARTHSURFACEANDSPACERELATEDWITHTHEDISTRIBUTIONOFSPACEANDGEOGRAPHYANDSERVESGEOGRAPHICSTUDYANDITSDECISIONMAKINGTHEAPPLIEDPRODUCTIONSOFMOSTGEOGRAPHICINFORMATIONSYSTEMSALLARESHOWNBYMEANSOFELECTRONMAPS，ANDAGOODELECTRONMAPWILLHAVEALLFUNCTIONOFGEOGRAPHICINFORMATIONSYSTEMINCITYELECTRONMAP，THECOMMONTRAFFICINFORMATIONISSURETOBEINCLUDEDINORDERTODEFINETRAFFICNETWORKWELL，OBTAINTHEBESTROUTEHIGHEFFICIENTLYANDPROVIDECONVENIENTCHECKFORTHEUSERS，THEMAINCONTENTOFTHISTHESISISFOLLOWINGFIRST，TOINTRODUCESIMPLYTHEGEOGRAPHICINFORMATIONSYSTEM，SOFTWARESYSTEMOFELECTRONMAPANDSPACEANALYZE，WHICHISTHEMAINFUNCTIONOFBOTHOFTHEMSECOND，THEBASICDATAORGANIZINGMODEOFNETWORKANALYZINGTOMAINLYINTRODUCETHEELEMENTALTHEORYOFNETWORKANALYZING，MAPTHEORYANALYSISSITUSOFNETWORK，ANDGIVEADATAORGANIZINGMODEAPPLIEDTOCOUNTWAYOFTHESHORTESTPATHTHIRD，ABOUTTHESHORTESTPATHANDITSARITHMETICBASEDONTHEINTRODUCTIONOFCLASSICALDIJKSTRAALGORITHM，INORDERTOPINCHSPACEANDINCREASECOUNTSPEED，TOUSETHEARITHMETICOFNEIGHBORINGPOINTSTOGETTHESHORTESTDISTANCEBETWEENTWOPOINTSFORTH，THECHECKOFCOMMONLINEINTHEELECTIONMAPBYUSINGOFTHESHORTESTPATHALGORITHM，TOGETTHESHORTESTDISTANCEBETWEENTWANDOMPOINTSINMAPS，COUNTANDSHOWIHEBESTRIDEROUTEKEYWORDSGEOGRAPHICINFORMATIONSYSTEM，ELECTRONMAP，TRAFFICNETWORK，SPACEANALYZE，DIJKSTRAALGORITHM，SHORTESTPATH

簡(jiǎn)介：大連交通大學(xué)碩士學(xué)位論文網(wǎng)絡(luò)化HRM系統(tǒng)關(guān)鍵技術(shù)研究與實(shí)現(xiàn)姓名陳敬勇申請(qǐng)學(xué)位級(jí)別碩士專業(yè)計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師邱占芝20091222人迕使通人。、≯I‘學(xué)碩FJ學(xué)伊論文ABSTRACTECONOMICINTEGRATIONANDTHETRENDOFTRADEGLOBALIZATIONHASACCELERATEDTHEOPERATIONANDMANAGEMENTOFLARGESCALEENTERPRISESPACEDWITHTHEWORLD，PROMOTINGTHENETWORKMANAGEMENTINFORMATIONSYSTEMWASBORN．NETWORKEDHUMANRESOURCEMANAGEMENTSYSTEMHRMISONEOFTHEKEYCONTENTOFTHEENTERPRISEINFORMATIONCONSTRUCTION，TOIMPROVEENTERPRISEMANAGEMENTLEVEL，ANDENHANCETHEVITALITYOFENTERPRISESANDTHECORECOMPETITIVENESSHASANIMPORTANTROLEINPROMOTING,ENABLINGTHEDISTRIBUTIONOFVASTTERRITORY，BUTLARGEANDNUMEROUSINTERNALORGANIZATIONSANDPERSONNELMOBILITYGROUPOFLARGEENTERPRISES，THROUGHTHEINTERNETANDINTRANETFORHUMANRESOURCESMANAGEMENTINALLBUSINESS，INCLUDINGSTRATEGICMANAGEMENTOFHUMANRESOURCESHUMANRESOURCESPLANNING，HUMANRESOURCESINDEXANALYSIS，DECISIONSUPPORT，STAFFQUALITYMEASUREMENT，MANAGERSELFSERVICE，HUMANRESOURCESMANAGEMENT1EAVEMANAGEMENT，PAYROLLBENEFITSMANAGEMENT,INSURANCEMANAGEMENT，INJURYMANAGEMENT，PERFORMANCEAPPRAISALMANAGEMENT，RECRUITMENTMANAGEMENT，TRAININGMANAGEMENT，REPORT’MANAGEMENT，LABORANDPERSONNELLAWSANDREGULATIONS，BUSINESSRULESANDREGULATIONS，PERSONNELINFORMATIONSTORAGEANDMANAGEMENTATTENDANCELEAVEMANAGEMENT，EMPLOYEEINFORMATIONMANAGEMENT，INSTITUTIONALANDJOBMANAGEMENT，CONTRACTMANAGEMENT，EMPLOYEESELFSERVICEANDSYSTEMACCESSCONTROLANDMANAGEMENT．THECROSSREGIONALLARGESCALECOALCOMPANYHRMSYSTEMREQUIREMENTS，RESEARCHNETWORKS，KEYTECHNOLOGYBASEDHRMSYSTEMSINCLUDESB／SSTRUCTURE，MULTITIERWEBAPPLICATIONS，J2EEARCHITECTURE，JSP／SERVLETDEVELOPMENTMODEL，STRUTSHIBERNATESPRINGSSHKEYTECHNOLOGIESSUCHASLIGHTWEIGHTFRAMEWORKFORTHEDESIGNANDIMPLEMENTATIONISSUES．J2EEFRAMEWORKANDB／SSTRUCTURE，MULTI．TIERWEBAPPLICATIONSYSTEM，WITHALEVELANDPLATFORMINDEPENDENTNATURECONSERVATIONSYSTEMDEVELOPMENT，OPERATIONANDMAINTENANCECOSTS；JSP／SERVLETDEVELOPMENTMODELHASTHEADVANTAGEOFDIRECT，SIMPLE；SSHFRAMEWORKCANEASILYHANDLECONTAINERLEVELSERVICES，CHANGESINTHECOUPLINGDEGREEOFAPPLICATIONDESIGNANDFLEXIBILITY，INCREASINGINDEPENDENCEBETWEENTHELEVELSANDCODEREUSABILITYISCONDUCIVETOEXPANSIONOFTHESYSTEMANDMAINTENANCE．THERESEARCHANDDEVELOPMENTOFNETWORK．BASEDHRMSYSTEMUSESTODAY’SMOSTADVANCEDNETWORKCONTROLTECHNOLOGYANDSOFTWAREDEVELOPMENTTECHNOLOGY．SYSTEMSLIGHTLYMODIFIEDCANBEAPPLIEDTOOTHERCROSSREGIONALLARGESCALEMININGCOMPANIESTOCONDUCTBUSINESSNETWORKHUMANRESOURCESDECISIONMAKINGANDMANAGEMENT．KEYWORDSHRMSYSTEMJ2EE；SSHFRAMEWORK；PLATFORMINDEPENDENCE；CODEREUSABILITYN

簡(jiǎn)介：北京交通大學(xué)碩士學(xué)位論文LONWKS網(wǎng)絡(luò)控制技術(shù)在DF7型機(jī)車控制系統(tǒng)中的應(yīng)用研究姓名苗素云申請(qǐng)學(xué)位級(jí)別碩士專業(yè)機(jī)械工程指導(dǎo)教師譚南林20050301北京變通大學(xué)碩士學(xué)位論文ABSTRACTTHELONWORKSNETWORKTECHNOLOGYONEOFTHEFIELDBUSTECHNOLOGIESDEVELOPEDINRECENTYEARSANDAVAILABLEASALLOPENSTANDARDTOALLMANUFACTURERSNOWHASBEENWIDELYUSEDINTHEAUTOMATICAREASRANGEDFROMINDUSTRYBUILDINGTRANSPORTATION，TOPOWERSYSTEMITINTEGRATESCOMPUTERNETWORKANDCONTROLINTOONETECHNOLOGYANDDISPLACESPROPRIETARYCENTRALIZEDSYSTEMSWITHOPEN，HIGHLYDISTRIBUTED，INTEROPERABLESYSTEMSNEURONCHIP，WHOSENETWORKPROTOCOLHASALL7LAYERSOFTHEISO／OSIREFERENCEMODEL，HASTHEABILITIESOFBOTHCOMMUNICATIONANDAPPLICATIONCONTROL，ANDPROVIDES34I／0OBJECTTHETECHNOLOGYALSOPROVIDESVERSATILEMETHODSFORBUILDINGANDMANAGINGTHECONTROINETWORKSINTHISPAPERASOLUTIONFORTHETRAINCONTROLNETWORKAREDEMONSTRATEDBASEDONTHELONWORKSTECHNOLOGYKEYWORDLONWORKSTECHNOLOGYCONTROLSYSTEMU

簡(jiǎn)介：論文詳細(xì)地論述了虛擬儀器測(cè)試系統(tǒng)并將虛擬儀器技術(shù)應(yīng)用于汽車部件測(cè)試且進(jìn)一步探討了虛擬儀器的網(wǎng)絡(luò)化問(wèn)題論文首先從概念、系統(tǒng)組成、硬件和軟件等方面對(duì)虛擬儀器測(cè)試系統(tǒng)進(jìn)行了具體的描述然后從原理和系統(tǒng)軟件等方面具體地介紹了兩個(gè)基于虛擬儀器的汽車部件測(cè)試系統(tǒng)從這兩個(gè)測(cè)試系統(tǒng)的介紹中論文給出了設(shè)計(jì)虛擬儀器測(cè)試系統(tǒng)的一般步驟和方法論文隨后詳細(xì)地論述了網(wǎng)絡(luò)化虛擬儀器的構(gòu)思與實(shí)現(xiàn)介紹了網(wǎng)絡(luò)化虛擬儀器的概念、模式、組建和所用到的軟件開發(fā)技術(shù)并且針對(duì)前面所介紹的某一個(gè)測(cè)試系統(tǒng)在實(shí)驗(yàn)室中具體地實(shí)現(xiàn)了該測(cè)試系統(tǒng)的網(wǎng)絡(luò)化功能

簡(jiǎn)介：分類號(hào)UDC密級(jí)編號(hào)串初大警CENTRALSOUTHUNIVERSLTY，993794F‘碩士學(xué)位論文論文題目基于多功能車輛總線的列車網(wǎng)絡(luò)學(xué)科、專業(yè)研究生姓名導(dǎo)師姓名及專業(yè)技術(shù)職務(wù)關(guān)鍵技術(shù)的研究與應(yīng)用通信與信息系統(tǒng)彭軍副教授ABSTRACTNOWADAYS，INMANYCOUNTRIES，TCNTRAINCOMMUNICATIONNETWORKISUSEDIN1ATESTTRAINSTOTRANSMITLOTSOFCONTROLANDSERVICEINFORMATIONBUTTHENETWORKEQUIPMENTSTHATAREUSEDONOURTRAINSAREIMPORTEDFROMFOREIGNSOITISVERYNECESSARYTODEVELOPTHETCNPRODUCTSWITHCHINESEINDEPENDENTINTELLECTUALPROPERTYFIRSTLY，THEVARIABLECOMMUNICATIONANDMESSAGECOMMUNICATIONOFTCNAREDISCUSSED，THEKEYTECHNOLOGYTHATUSEDBYVARIABLECOMMUNICATIONSUCHASPERIODICPOLLANDSOURCEADDRESSEDBROADCASTANDUSEDBYMESSAGECOMMUNICATIONSUCHASEVENTPOLLANDEVENTSEARCHALGORITHMAREANALYZEDANDRESEARCHEDDETAILEDLYBASEDONTHECOMPARISONBETWEENTHETCNKEYTECHNOLOGIESDESCRIPTIONABOVEANDTHERELATIVETECHNOLOGIESOFNETWORKANDFIELDBUS，THESEKEYTECHNOLOGIESCANENSURETHEREALTIMEANDREIIABILITYOFCOMMUNICATIONTHISRESEARCHISTHETHEORETICALELEMENTSOFDEVELOPMENTOFNETWORKPRODUCTSFORDEVELOPTHEDEVICESOFTCN，ATFIRST，ACOMMUNICATIONNETWORKBASEDONMVBMULTIFUNETIONVEHICLEBUSISBUILTIN1ABORATORYBASEONCOMMUNICATIONMECHANISMOFVARIABLEANDMESSAGE，THECOMMUNICATIONOFVARIABLEANDMESSAGEAREREALIZEDBYMVBAPPLICATIONPROGRAMMINGINTERFACETHENTHEMAINDEVELOPINGMETHODSOFTCNPRODUCTSARECOMPARED，THEADVANCEDDEVELOPINGTOOLFPGAANDVERILOGHDLHARDWAREDESCRIPTIONLANGUAGEARECHOSEN，ARESOLVENTAREPUTFORWARDFORTHEDIFFICULTIESSUCHASMANCHESTERENCODINGANDDECODINGANDATTHESAMETIMETHEDIFFICULTIESSUCHASCRCCALCULATION、MANCHESTERENCODING、SENDINGOFFRAMEHEADANDLINKINGBETWEENEVERYSUBMODULESEAMLESSARERESOLVEDBYSIMULATION、SYNTHESISANDDOWNLOADINGTHEFILESTOFPGAITPROVETHATFUNCTIONOFCLASS1NODEAREREALIZETHEWORKBUILDSASTABLEFOUNDATIONTODEVELOPTHEBUSADMINISTRATORANDGATEWAYOFTCNKEYWORDSMVB，TCN，F(xiàn)PGA，VERILOGHDL

簡(jiǎn)介：隨著鐵路運(yùn)輸事業(yè)的發(fā)展，全路裝設(shè)有信號(hào)連鎖設(shè)備的車站已占現(xiàn)有營(yíng)業(yè)站的994％，電氣集中車站占連鎖車站的729％，而電氣集中連鎖道岔占連鎖道岔的887％，大型編組站、區(qū)段站幾乎全部實(shí)現(xiàn)了電氣集中連鎖。因此，確保鐵路車站信號(hào)設(shè)備無(wú)故障地良好工作，對(duì)鐵路運(yùn)輸安全具有非常重要的意義。利用新技術(shù)設(shè)備和方法，實(shí)現(xiàn)鐵路信號(hào)設(shè)備狀態(tài)監(jiān)測(cè)和故障診斷，是保障鐵路運(yùn)輸安全中需亟待研究的重大課題之一。本文正是在傳統(tǒng)的信號(hào)分析方法的基礎(chǔ)上，利用現(xiàn)代設(shè)備采集的鐵路信號(hào)模擬量與開關(guān)量，將神經(jīng)網(wǎng)絡(luò)和專家系統(tǒng)融入鐵路信號(hào)故障診斷之中，形成一個(gè)更加完善的趨于智能化的基于神經(jīng)網(wǎng)絡(luò)的鐵路信號(hào)故障診斷專家系統(tǒng)。本文分析了鐵路信號(hào)典型故障的故障機(jī)理，闡述了信號(hào)分析與故障診斷的方法，比較了各種方法的特點(diǎn)，針對(duì)鐵路信號(hào)的典型故障特征，采用BP神經(jīng)網(wǎng)絡(luò)診斷方法，基于WINDOWS平臺(tái)，利用面向?qū)ο蟮腣ISUALC，開發(fā)了基于神經(jīng)網(wǎng)絡(luò)的鐵路信號(hào)故障診斷專家系統(tǒng)。并且通過(guò)采集實(shí)際故障信號(hào)，對(duì)系統(tǒng)所采用的方法進(jìn)行了功能驗(yàn)證。實(shí)驗(yàn)結(jié)果表明，通過(guò)神經(jīng)網(wǎng)絡(luò)對(duì)鐵路信號(hào)故障診斷，效果良好；提高了設(shè)備診斷、維修的效率，降低了設(shè)備的維修成本，具有很好的應(yīng)用前景。

簡(jiǎn)介：本文提出了基于現(xiàn)場(chǎng)總線的艦船導(dǎo)航系統(tǒng)網(wǎng)絡(luò)方案。該方案中，綜合導(dǎo)航顯控臺(tái)、各導(dǎo)航設(shè)備和各分系統(tǒng)都作為網(wǎng)絡(luò)節(jié)點(diǎn)掛接在CAN總線上，各節(jié)點(diǎn)可以根據(jù)自己的需要從總線上獲取導(dǎo)航信息。這樣設(shè)計(jì)提高了整個(gè)導(dǎo)航系統(tǒng)的自動(dòng)化程度及可靠性。該方案還包括兩種異構(gòu)網(wǎng)絡(luò)互連設(shè)備CAN總線RS422轉(zhuǎn)換器和CAN總線ETHER網(wǎng)關(guān)，用于CAN總線、以太網(wǎng)、串行總線之間的網(wǎng)絡(luò)互連和數(shù)據(jù)交換。本文重點(diǎn)介紹了CAN總線ETHER網(wǎng)關(guān)的開發(fā)。網(wǎng)關(guān)以應(yīng)用廣泛的MCS51單片機(jī)為核心，實(shí)現(xiàn)了與CAN總線、以太網(wǎng)的通信。本文還對(duì)當(dāng)前的熱點(diǎn)技術(shù)TCPIP協(xié)議作了深入分析，設(shè)計(jì)了一個(gè)適用于網(wǎng)關(guān)自身系統(tǒng)的輕型協(xié)議棧，使網(wǎng)關(guān)具有了WEB服務(wù)器的功能。實(shí)驗(yàn)證明，本方案可以很好的實(shí)現(xiàn)多個(gè)節(jié)點(diǎn)通信，兩種網(wǎng)絡(luò)互連設(shè)備也可以很好實(shí)現(xiàn)異構(gòu)網(wǎng)絡(luò)間的數(shù)據(jù)交換。

簡(jiǎn)介：東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文網(wǎng)絡(luò)技術(shù)對(duì)會(huì)計(jì)發(fā)展影響的研究姓名李秀麗申請(qǐng)學(xué)位級(jí)別碩士專業(yè)農(nóng)業(yè)經(jīng)濟(jì)管理指導(dǎo)教師孫長(zhǎng)江200361STUDIESONEFFECTOFNETWORKTECHNOLOGYTOACCOUNTINGDEVELOPMENTABSTRACTTALCINGASWEEPINGVIEWONTHEHISTORYOFTHEACCOUNTINGWECALLSEETHATACCOUNTINGDEVELOPMENTISREACTIVITYTHATIS，ITCAMEFROMTHEEMERGENCEOFTHEECONOMICACTIVITYANDIMPROVEDWITHTHEDEVELOPMENTOFTHEECONOMYANDFINALLYCAMEINTOBEINGTHEINTEGRATEDFMANCIALACCOUNTINGTHEORYSYSTEMFROMTHEACCOUNTINGOBJECTIVESTOTHECONCRETEACCOUNTINGPOLICIESTHEDEVELOPMENTOFNETWORKTECHNOLOGYBRINGSTREMENDOUSEFFECTONTHEACCOUNTINGTHEORIESANDPRACTICE，F(xiàn)INALLYAROUSETHEPROFOUNDCHANGESOFTHEACCOUNTINGTHEORIESANDACCOUNTINGMETHODSTHETHESISWASBASEDONTHEACCOUNTINGENVIRONMENTANALYZEDTHEIMPACTTHATACCOUNTINGTHEORIASANDACCOUNTINGMETHODSWERESUBJECTEDTO，ANDPROPOSEDTHEDEVELOPMENTOFACCOUNTINGINNOVATIONUNDERTHENEWECONOMICENVIRONMENTTHISTHESISCONSISTEDOFFOURSECTIONSTHEFIRSTSECTIONINTRODUCEDTHEDEVELOPMENTPROCESSOFACCOUNTINGINTERMSOFTHECHANGEOFSOCIETYENVIRONMENTS，ANDWECOULDSEEHOWTHEACCOUNTINGGREDUALLYHEADEDFORCONSUMMATEWITHTHEDEVELOPMENTOFTHEECONOMYITSYSTEMICALLYILLUMINATEDTHESYSTEMOFFINANCIALACCOUNTINGTHEORYCOMBININGRESEARCHFIUITSOFTHEDOMESTICANDTHEFOREIGNTHESECONDSECTIONANALYZEDTHECURRENTENVIRONMENTTHATTHEACCOUNTINGWASCONFRONTEDWITH，ANDPROBEDTHEEFFECTTHATTHEACCOUNTINGTHEORYANDACCOUNTINGPRACTICEWASSUBJECTEDTOUNDERTHISENVIRONMENTACCOUNTINGOBJECTIVESTHEORYPRESENTSUNITEDTANDENCYTHEQUALITYOFTHEACCOUNTINGINFORMATIONMAYBEENHANCEDATTHESANIFTIMEINTANGIBLEASSETSANDTHEHUMANRESOURCEBECALNETHESIGNIFICANTCOMPONENTSOFTHEBUSINESSASSETSTHEACCOUNTINGPOSTULATESNEEDTOBESCMTINIZEDANDDEFINEDONCEMORETRADITIONALACCOUNTINGCONFIRMATIONANDMEASUREMENTDONOTFITTHEECONOMYAFFAIRSINMANYSIDESTHETHIRDSECTIONREDEFINEDTHECONCEPTIONOFTHEACCOUNTINGPOSTULATESINTHEELECTRICNETWORKENVIRONMENTITPROPOSEDTHATTHECONTRADICTORYACCOUNTINGPRINCIPLEMAYCOEXISTANDDISCUSSEDTHECHALLENGEOFTHETRIPLEENLRYBOOKKEEPINGPOINTEDTOUNCHANGEABLEDOUBLEENTRYBOOKKEEPINGINHUNDREDSOFYEARSANDTHOROUGHINNOVATIONTHEACCOUNTINGEVENTMETHODSAIMEDATTHEPROCESSMETHODSOFTRADITIONA／ACCOUNTINGDATATHEACCOUNTINGREPORTDEVELOPEDFROMTHEGENERALPROCESSREPORTTOMASSCUSTOMIZATIONREPORTII

簡(jiǎn)介：國(guó)內(nèi)圖書分類號(hào)F2731工學(xué)碩士學(xué)位論文基于專利視角的高新技術(shù)企業(yè)集群創(chuàng)新網(wǎng)絡(luò)研究碩士研究生王杰導(dǎo)師王宏起申請(qǐng)學(xué)位級(jí)別工學(xué)碩士學(xué)科、專業(yè)系統(tǒng)工程所在單位管理學(xué)院答辯日期2010年3月授予學(xué)位單位哈爾濱理工大學(xué)哈爾濱理工大學(xué)碩士學(xué)位論文原創(chuàng)性聲明本人鄭重聲明此處所提交的碩士學(xué)位論文基于專利視角的高新技術(shù)集群創(chuàng)新網(wǎng)絡(luò)研究，是本人在導(dǎo)師指導(dǎo)下，在哈爾濱理工大學(xué)攻讀碩士學(xué)位期間獨(dú)立進(jìn)行研究工作所取得的成果。據(jù)本人所知，論文中除已注明部分外不包含他人已發(fā)表或撰寫過(guò)的研究成果。對(duì)本文研究工作做出貢獻(xiàn)的個(gè)人和集體，均已在文中以明確方式注明。本聲明的法律結(jié)果將完全由本人承擔(dān)。作者簽名Z術(shù)日期加矽年?duì)幵?日哈爾濱理工大學(xué)碩士學(xué)位論文使用授權(quán)書基于專利視角的高新技術(shù)企業(yè)集群創(chuàng)新網(wǎng)絡(luò)研究系本人在哈爾濱理工大學(xué)攻讀碩士學(xué)位期間在導(dǎo)師指導(dǎo)下完成的碩士學(xué)位論文。本論文的研究成果歸哈爾濱理工大學(xué)所有，本論文的研究?jī)?nèi)容不得以其它單位的名義發(fā)表。本人完全了解哈爾濱理工大學(xué)關(guān)于保存、使用學(xué)位論文的規(guī)定，同意學(xué)校保留并向有關(guān)部門提交論文和電子版本，允許論文被查閱和借閱。本人授權(quán)哈爾濱理工大學(xué)可以采用影印、縮印或其他復(fù)制手段保存論文，可以公布論文的全部或部分內(nèi)容。本學(xué)位論文屬于保密，啦年解密后適用授權(quán)書。不保密團(tuán)。請(qǐng)?jiān)谝陨舷鄳?yīng)方框內(nèi)打√作者簽名薌J乏日期辨爭(zhēng)月7日，，～_M新簽名乙魎吼帥年午月7同