基于CAN总线的飞机整机电缆测试架构研究

南京航空航天大学硕士学位论文基于CAN总线的飞机整机电缆测试架构研究姓名：张宝强申请学位级别：硕士专业：机械电子工程指导教师：赵转萍2011-03iCANCANCANCANCANRS232-CANCANCANiiABSTRACTIntheprocessofmanufactureandmaintenanceoflargecapacityplane,testofitscablenetworkissoimportantthatitcouldfindthepotentialtroubles.Thecablenetworkoflargecapacityplanehascomplicatedstructure,suchasnumerouspoints,dispersedjunctions,complexconductionrelations.Itrequiresthatthetestequipmenthasthecapabilityofintegratedtest,convenientexpansionandhightestspeed.ThispaperpresentsadistributedflexiblecabletestmodelbasedonCANbus.Itadoptsmulti-stimulus,distributedmachineswithmodularmatrixswitches,standardmatrixswitchconnectorsidentificationmarkingofswitchcableetc.Themodelsatisfiestheneedoffasttestofwholeplaneandhasahighpracticalvalue.Firstly,thepaperproposesamulti-excitation,flexibletheoreticaltestingmodel,seeingthatthecurrentcabletestsystemofChina'slargecapacityaircraftisrelativelybackward,unavailabletotestcomprehensively,lowefficiency.Secondly,onaccountofthecharacteristicsmulti-master,easytocontrol,hightransmissionrateofCANbus,therealizationofmulti-excitationanalysisismadefromthetwoaspectsofcontinuityandresistance.Andthemodularmatrixswitchandtheadaptercableisdesignedtomeettheflexiblestructureneeds.Again,thetestdata-structureisdesign,includingtheframeformatofapplicationlayerofCANbus,formatoftablesofcableinformationsuchasturn-table.Finally,theprogramofsystemisdesigned,includingthemaincontrolprogram,CANbuscommunicationprograms,ofwhichaself-designedRS232-CANdriverinterfaceisdesigned,databaseaccessinterfaceprogram,thesystemself-testprocedures,conductionandinsulationtestingprocedures.Keywords:CANbus,distributed,multi-stimulus,flexible,matrixswitch,whole-planetestv1.1............................................................................................................41.2...........................................................................................................42.1..................................................................................................102.2......................................................................................................102.3..........................................................................................................112.4..................................................................................................................152.5..............................................................................................................152.6..........................................................................................................163.1......................................................................................................173.2CANMAC.................................................................................................183.3CAN........................................................................................................193.4CAN....................................................................................................213.5..........................................................................................................223.6RS232-CAN................................................................................................................233.7SJA1000..........................................................................................................244.1..................................................................................................................304.2.........................................................................................................................304.3..................................................................................................................315.1..................................................................................................................335.2..................................................................................................................355.3..................................................................................................................355.4..............................................................................................................375.5SJA1000.....................................................................................................375.6CAN............................................................................................................385.7..............................................................................................................395.8.........................................................................................................................405.9..............................................................................................425.10............................................................................................................445.11................................................................................................................