数字化埋弧焊机人机交互与专家系统的研究(I)

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1、上海交通大学硕士学位论文数字化埋弧焊机人机交互与专家系统的研究姓名：赵楠申请学位级别：硕士专业：材料加工工程指导教师：华学明;吴毅雄20060101上海交通大学硕士学位论文第一章目录串行通信电路发送到人机界面系统，最终控制焊接全过程。焊接过程中该软件可以通过显示焊接电流和焊接电压曲线对焊接过程进行监控。同时软件中还内嵌了埋弧焊工艺专家系统，使用户可以在设定参数时逐步得到专家系统的推荐优化参数，从而使焊接操作过程更加简易化、智能化，也为埋弧焊的网络化打下了良好的基础。实践证明：该数字化埋弧焊人机界面与专家系统具有稳定可靠，界面友好，可实现多组参数的设置及保存，单旋钮调节参数等特点。关键词：数

2、字化埋弧焊机，人机界面，单片机，数字化信号处理器，Labview，专家系统VI上海交通大学硕士学位论文第一章目录STUDYONMAN-HUMANINTERFACEANDEXPERTSYSTEMOFDIGITALSUBMERGEDARCWELDINGABSTRACTThispaperintroducesthestructureofSubmergedArcWeldingbasedonsinglemicro-chipanddualdigitalsignalprocessors,alsodesignshuman-machineinterfacesystembasedonMCU.Thissystem

3、isconsistedofMCU,LCD,keyboard,FRAMSerialMemoryanddigitalencoder,andcanrealizeweldingparameterssettingsuchasweldingvoltage,weldingcurrentandweldingspeedetc.Besides,itcanalsodisplayweldingcurrentandweldingvoltageindynamicmode.TheMCUcommunicateswithDSPsthroughRS-485.Highstability,goodperformanceofthi

4、ssystemarepracticallyproved.Thestructurehasgreatlytakeadvantageoftheeventmanagementofmicro-chipandthehighefficiencyindataprocessingofDSP,alsoenhancedtheaccuracyandreal-timingofweldingsystem,andmeettheneedsofmulti-tasksinweldingsystem.Thispaperhasdesignedcreativelyakindofphasedemodulationcircuitwhi

5、chhasenhancedtheperformancecomparedwithsoftwarephasedemodulationtraditionally.Thecircuitisconsistedof4parts:shapingcircuit,exclusive-ORcircuit,flutter-eliminationcircuitandmaster-slaveflip-flopcircuit.Thetwopulseswillpassthecircuitbeforeenteringthemicro-chip.Onlyonepulseoftwowillbeoutputaftertheci

6、rcuitwhicheasilyandcorrectlyjudgestherotationdirection.Besides,softwaretocontrolandsupervisethewholeprocessofSAWonPChasalsobeendeveloped.Customercaninputseveralparameterssuchasweldingcurrent,weldingvoltage,etc.thensenddatathroughRS-232circuitandeventuallycontrolthewholeprocessofSAW.Inweldingproces

7、s,theweldingcurrentandvoltagecurveswillbedisplayedinthesoftwarewhichfacilitatescustomerstosupervisetheweldingVII上海交通大学硕士学位论文第一章目录condition.ThesoftwareisembeddedbySAWexpertsystem.Customercangetrecommendationaftere