基于CORBA面向?qū)ο蟮腇MS控制系統(tǒng)研究.pdf

1、上海交通大學(xué)博士學(xué)位論文基于CORBA面向?qū)ο蟮腇MS控制系統(tǒng)研究摘要制造技術(shù)在適應(yīng)市場(chǎng)需要的前提下發(fā)展空前迅速。當(dāng)今，制造企業(yè)之間面臨日趨激烈的競(jìng)爭(zhēng)，它迫使制造企業(yè)將制造系統(tǒng)的研究和更新作為經(jīng)營(yíng)戰(zhàn)略中戰(zhàn)勝競(jìng)爭(zhēng)對(duì)手的一個(gè)關(guān)鍵因素。作為柔性制造系統(tǒng)(FMS)核心部件的控制系統(tǒng)，對(duì)FMS的性能起著決定性的作用。近三十年來，一些發(fā)達(dá)國(guó)家在這一領(lǐng)域持續(xù)不斷地投入了大量的人力物力，對(duì)FMS的控制系統(tǒng)進(jìn)行了廣泛而深入的研究，并取得了豐碩的成果。在這

2、些成果的基礎(chǔ)上，尋找一種適合于我國(guó)FMS發(fā)展現(xiàn)狀和需求的控制系統(tǒng)建模和設(shè)計(jì)方法，將會(huì)對(duì)我國(guó)中小型企業(yè)發(fā)展FMS起到指導(dǎo)和推進(jìn)作用。本文通過查閱大量國(guó)內(nèi)外相關(guān)文獻(xiàn)，對(duì)FMS的控制系統(tǒng)體系結(jié)構(gòu)、計(jì)劃和調(diào)度、實(shí)時(shí)控制系統(tǒng)建模方法等發(fā)展?fàn)顩r進(jìn)行了研究與總結(jié)。汪同德國(guó)斯圖加特大學(xué)機(jī)床與控制技術(shù)研究所對(duì)ALSYS(適應(yīng)于多種柔性制造環(huán)境的自適應(yīng)總控系統(tǒng))長(zhǎng)期合作研究和開發(fā)實(shí)踐的基礎(chǔ)上，結(jié)合近年來相關(guān)技術(shù)發(fā)展的最新成就和國(guó)內(nèi)FMS的實(shí)際需求，提出適合

3、于按多品種小批量車間生產(chǎn)環(huán)境的遞階分布式控制系統(tǒng)的建模和設(shè)計(jì)方法。為使FMS控制系統(tǒng)具有可維護(hù)性、可重用性、適應(yīng)性、魯棒性和可重構(gòu)性等特性，本文構(gòu)筑了適應(yīng)我國(guó)中小型企業(yè)發(fā)展柔性制造系統(tǒng)的FMS遞階分布式控制統(tǒng)體系結(jié)構(gòu)。在此基礎(chǔ)上，提出了面向?qū)ο蟮目刂葡到y(tǒng)分析和建模方法。采用IDEF0結(jié)構(gòu)分析方法，建立了控制系統(tǒng)中各功能實(shí)體的功能模型；采用實(shí)體一聯(lián)系模型(ERD)建模方法，建立了控制系統(tǒng)的信息模型；并建立了功能模型、信息模型與面向?qū)ο竽Ｐ?/p>

4、之間的映射規(guī)則。為了使控制系統(tǒng)中各功能實(shí)體具有局部自治能力，并且具有統(tǒng)一的通訊接口，在CORBA(公共對(duì)象請(qǐng)求代理體系結(jié)構(gòu))分布式對(duì)象特點(diǎn)以及FMS遞階分布式控制通訊要求的基礎(chǔ)上，提出了以CORBA為基礎(chǔ)的控制系統(tǒng)軟件結(jié)構(gòu)，并建立了各功能實(shí)體基于CORBA的通用報(bào)文傳輸模型。本文對(duì)FMS計(jì)劃和調(diào)度的優(yōu)化方法作了探索性的研究。提出了零上海交通大學(xué)博士學(xué)位論文RESEARCHoNCoRBABASEDoB。玨lCToRIENTEDFMSCON

5、TRoLSYSTEMABSTRACTInthepremiseadaptedtomarketdemands，manufacturingtechnologyhasgainedanall—timedevelopmentNowadays，manufacturingenterprisesaleoldenfacedwithfiercecompetition，whicharemakingtheresearchandrenewalofmanufactu

6、ringsystemsakeyfactorofovercomingcompetitiverivalsinbusinessstrategyControlsystemwhichactsasanimportantcomponentofflexiblemanufacturingsystem(FMS)，hasadecisiveinfluenceontheperformanceofFMSIn1ast30yearsalargenumberofeffo

7、rtshavebeenconcentratedonthisfieldandalotofachievementshavebeenobtainedindevelopedcountriesBasedontheseachievements。itwilIbeagreatguidanceandpropulsiontomanyChinesesmallandmiddlesizeenterprises(SMEs)tofindoutanewmodeling

8、anddesignmethodofflexiblemanufacturingcontrolsystemswhichcansarisfytheiractualrequirementsintheirowndeveloping1)rocessesInthisdissertation，throughreadingalotofrelatedliteraturesaroundtheworld，maintypesofcontrolsystemarch

9、itectures，planningandscheduling，themodelingmethodsofrealtimecontrolsystemetcareanalyzedandsummarizedfromtheaspectsoftheirorigin，presentdevelopmentandtheirpromisingfutureThrou曲thelongtermcooperationwithISW(theinstituteofc

10、ontroltechnologyformachinetoolsandmanufacturingunits，universityofStuttgartGermany)intheresearchofALSYS(DasAdaptierbareLeitSYStem)，thepracticingexperiencesandtheorieshavebeenaccumulatedinthisfieldBasedontheabeve—mentioned

11、worksincombinationwithnewapproachesinthisfieldandactualFMSrequirementsofdomesticmanufactur／ngenterprises，wehaveputforwardanewschemeofaFMSdistributed＆hierarchicalcontrolsystemwithanewkindofmodelanddesignmethod，whichCallbe

12、adaptedtotheproductiveenvironmentoflowvolume／highvarietyparttypesTobeprovidedwiththecharacteristicsofmaintainability，reusability，adaptability，robusticityandreconflgureablityetcinFMScontrolsystemaFMSdistributed＆hierarchic

13、alcontrolarchitecturehavebeenconstructed，whichisadaptedtodomesticSMEsdevelopingFMS，andthen，thecharacteristicsandfuncfionaJentitiesareanalyzedinthearchitectureOnthebasisofindicatedabove，theanalysisandmodelingmethodsofobje

14、ct—orientedcontrolsystemhavebeenproposedTheIDEF0methodhasbeenusedtoestablishfunctionaImodelsoffunotionentitiesofthecontrolsystemandentityrelationshipmodelingapproachhasbeenusedtobuildinformationmodelToconvertfunctionandi

15、nformationmodelsintoobjectorientedmodels，thetransformationrulesbetweenmodelsarebuiltiBdetailsBasedontheCommonObjectRequestBrokerArchitecture(CORBA)characteristicandmeetingdemandsofthedistributed＆hierarchicalcontr01thesof

16、twarearchitectureofthecontrolsystemisproposedontheCORBAinfrastructureToobtaintheabilityofpartlyautonomyandtheuniformcommunicationalinterfaceineachoffunctionalentities，theordinarymessagaspassingmodelsarebuiltfofeachoffunc