嵌入式可重构数控系统及其关键技术研究

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1、上海大学博士学位论文嵌入式可重构数控系统及其关键技术研究姓名：王文斌申请学位级别：博士专业：机械制造及其自动化指导教师：俞涛20070501上海大学博士论文嵌入式可重构数控系统及其关键技术研究法。针对检索适配后，多个可行的系统选择方案，提出适应性分析模型，并首次将模糊层次分析法应用于构件系统方案的适应性分析中，并通过实例分析其有效性。由此建立了可重构数控系统集成开发环境原型。5、基于上述工作并为验证之，研制了水射流数控系统和线束机数控系统。件库关键词：可重构嵌入式数控系统体系结构软件总线实时任务调度构II上海大学博士论文

2、嵌入式可重构数控系统及其关键技术研究ABSTRACTThereconfigurablemanufacturingsystem(RMS)isadirectionoffuturemanufacturingsystem．Itincludessystem—levelreconfigurationandmachine-levelreconfiguration．Computerizednumericalcontrolled(CNC)machinesarethemainpartsofmanufacturingsystem．Itispo

3、ssibletorealizeRMSifaCNCmachineshasthecapabilityofreconfiguration．ThiscapabilityhasbecomeoneoftheperformanceindexestomodemCNCmachines．Wlththedevelopmentofsemiconductorstechnologies，theembeddedmicro—processorisbecomingthemainstreamofthepostPCmarket．Itishigh-speed，

4、small，powerful，multifunctional，andintegrateshighperformancecorewitllarichsetofperipheralfunctionsfocusedoncommunication．TheseadvantagesgreatlysatisfythedevelopmentofthemodemCNCmachines．Besidessomeembeddedoperatingsystems，suchasembeddedLinux，uCOS，basedonGNUsoftwar

5、e，isrobustandopensources，providewidelyapplicationspaceforCNCmachinescontrollerbasedonembeddedsystem．Asthebeginningstepbasedonembeddedsystemathomeandabroad，mostCNCsystemshavebeendevelopedaccordingtotheirspecificrequest．togetherwimtheresourcelimitandplatformrelativ

6、ityoftheembeddedsystem，whichmakedevelopmenthard，longtimeandreconfigurationimpossible．ThisthesisemphasizesonCNCsystemreconfigurationanditskeytechnologybasedonembeddedsystem．ItanalysesthearchitectureofembeddedreconfigurableCNCsystemfromthepointofviewofthemethodolog

7、y．Thenstudythesoftwareandmulti·taskschedulealgorithmofthereconfigurableCNCsystem，andaprototypeofreconfigurableCNCsystemIDE(IntegratedDevelopmentEnvironment)isbuiltup．Intheendthewater-jetCNCsystemandwiringharnessCNCsystemhavebeendevelopedtoverifytheresearchresult．

8、Thedetailsareorganizedasfollows：ThecurrentarchitectureandcomplexityoftheCNCsystemhavebeenresearched．wimtheresultthatthearchitectureisthefundamentofthereconfigu