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1、2432003M5v(1S)Journal of Jiangsu University(NaturalScience Edition) Vol.24 No.3May 2003multiSIM/d_杜天艳, 赵不贿,陆继远, 景亮(v,212013)K1 混杂系统的仿真通常是在MATLAB环境下进行的,如果要用电路来实现混杂系统的监控器,还需要做数学模型到电路模型的映射并对电路模型再进行仿真.笔者提出了基于multiSIM环境下的混杂系统仿真方法,可直接得到系统监控器的电路模型.用模拟电路来模拟混杂系统的连续时间子系统,其离散事件子系统用Petri网建模,并对模型用VHDL编程,经编译、仿真后封
2、装成器件,将两部分电路相互连接,通过multiSIM仿真,获得混杂系统的性能.文中通过一个液位控制系统实例具体介绍了这一方法,其仿真结果证明了该方法的正确性.这对于混杂系统的研究,以及片上嵌入式系统的设计都具有重要的意义.1oM 混杂系统;混合仿真;Petri网;multiSIMms| TP303;O23DSM AcI| 1671-7775(2003)03-0071-04dYqz0dHW0dT7Bd.9V,dBTd,B=,d+,BT?3H,d5“K”/B.di?、LH+.d#S;V2A8rX3H,DY21;V1、V2A8sYrX1、X3H,DY3、Y4Hu7.V1A8X2H,Y31;V2A8X
3、4H,Y41;DY3、Y41HDY6u7.V3A8X5H,DY5,M7S;V3A8X5H,DY61,U,T.m2AdFig.2Liquidsystem2.2dYq3-72.2.1Petri网建模m3desPetri,dPetriy.d12oS1,S2,S12,VUd.S1Y01,S1$SMH,UY0,S2,S4 ,S6,S7,S9 ,S12sYVUDY1 ,Y2 ,Y671;S8!;M%T1、T 2,T10,10M%,SM0,:S11,oSM0.o72 v(1S)24M%?7?3,M%?SM1,i1HqYq1.:S/,/X0fH,9T1M%Hq,PM%T1?,S1M0,Y09M0;S2 ,S4
4、$SM,DY1,Y2T.V1A8rX 1H,M%T2?,oS31,S20,DY11;V2A8rX3H,M%T3?,S40,S51,DY21;oS3S51H,M%T4?.Nw,VAdMV.m3dPetriFig.3Interpreted PetriNets2.2.2模型实现multiSIM,VHDLPetriI,Ir、_ ,q.-,155l,#q|8T.K,、_o8.2.3HWsAA8、BsE,nm4.s、Vcc1Vcc2,_sVUA8,_sVUA8,sYe71k1、k2e,e71Yq%z,| g.HW|_Yq%e|, |g,1LC,913e|,sYUT1UT2.AV1、V2sM,sHW,Q78
5、8.1QA.V3B1,yA|X5A|,7 T#DY61.mul-tiSIM,0TssY,V1、V2 、V3v,nm5.m4HWmFig.4Circuitsof continuous levelm5d_9mFig.5Generalcircuitsof simulation for system2.4Ad_Admm5U.V1、V2、V3Av,dPetrieVHDLv.fX0df,71clr、set_7SHb,UsYUdTT./f,X0M,TUY0,d,DY1 、Y2Hu7,A87SV1、V2.!9H!V1A8、y,PAX25r,V2ArX4 ,m6U.NH?A8,V1ArX1H,DY11,V2Ar
6、X3;X3rH,Y2M,7X3BU,m6?A733?:multiSIM/d_.Uo4,AUBU,m7U.m6d_mFig.6Wavesof the systemm7HW_oFig.7Wavesof thecontinuouslevelNH,DY3 、Y4Hu7,V1 、V2A8,X1M.N/,vd?5,s_o,dM?p,rd_1p.3multiSIMVHDLVerilog_,PmultiSIM_?vv9,?0d_.PetriYqdy1.7PetrieHDL,PmultiSIMdPZL、R_,d4Bro.ID 1 7,),.ed#s!9ZEJ .9, 1996(4):254-262. 2Rv,H
7、.+ emVU(GRAFCET)M.y,ur.:,1996. 3 u,;.PetriqLCJ .q, 2002,13(8):1652-1657. 4 u,*,.dVIq7?/M .:,2001. 5 b,Z),=.ElectronicsWorkbenchM.:0,2001. 6z.EElectronics Workbench Multisim2001M.:zK,2001. 7 u,$.VHDLq3 !9M .:0S/,1999.Simulationof HybridSystem BasedonMultiSIMDU Tian-yan, ZHAO Bu-hui, LU Ji-yuan, JING Liang(Schoolof Electrical and Information Engineering, Jiangsu University, Zhenjiang, Jiangsu212013, China)Abstract:The simulation of thehybrid system is often based on M
