北戴河火车站售票系统仿真

《建模与仿真》课程论文姓名：王小刚学号：1111028北戴河火车站售票系统仿真一、模型描述假设北戴河火车站有2个自动售票机机、1个网络购票取票机，1个成人票窗口，1个学生票窗口，1个改签（退票）窗口。已知前往天津、北京、河北省内车票数量充足，绝大多数人直接在自动售票机上购票，方便，高效；开往新疆、海南、云南等地的火车车票价格较高，需要在柜台办理；取票，退票，改签业务在特殊窗口办理。由于取票机不能取学生票，所以使用人数仅针对成人票的业务办理，使用人数较少。票价<100的建议在自动售票机上完成，300<票价<600,或>1000的建议在人工售票窗口购票，学生票仅能在学生票窗口购得。顾客会选择最短队列的机器或柜台。乘客到达时间间隔服从参数为2的泊松分布。乘客购票花费金额服从正态分布N（600，100），正态分布N（3000，500）。在自动售票机上操作时间服从均匀分布UNIFORM（2，5）的随机分布，自动取票机的时间服从均匀分布UNIFORM（4，10），柜台售票的时间服从均匀分布UNIFORM（3，7），柜台取票时间服从均匀分布UNIFORM（6，9），其他业务办理时间服从均匀分布UNIFORM（5，25），退票、改签业务办理时间服从均匀分布UNIFORM（10，40）。模型归档1、模型逻辑结构图2、模型细节MODELINFORMATION: ModelName: 北戴河火车站售票系统 ModelTitle: BaseModel. ModelAuthor: 王小刚CreationDate: 2013-12-25___________________________________________________ELEMENTNAME:Buffers001ElementType: BufferQuantity: 6Capacity: 1000InputOption: RearOutputOption: First SearchFrom: FrontELEMENTNAME:kindElementType: AttributeQuantity: 1ELEMENTNAME:minsg2ElementType: FunctionType: IntegerParameters: 2 x,Integer y,IntegerActions Execution: IFx<=y RETURN1 ELSE RETURN2 ENDIFELEMENTNAME:minsg3ElementType: FunctionType: IntegerParameters: 3 x,Integer y,Integer z,IntegerActions Execution: DIMaASINTEGER IFx<=yANDx<=z a=1 ELSEIFy<=xANDy<=z a=2 ELSEIFz<=xANDz<=y a=3 ENDIF RETURNaELEMENTNAME:成人票窗口ElementType: MachineQuantity: 1Priority: LowestType: SingleCycleTime: 服务时间Input/OutputRules Input: PULLfromBuffers001(4) Output: PUSHtoSHIPActions Input: IF乘客的个人选择=1 服务时间=UNIFORM(6,9) ELSEIF乘客的个人选择=2 服务时间=UNIFORM(3,7) ELSEIF乘客的个人选择=3 服务时间=UNIFORM(5,25) ENDIFELEMENTNAME:乘客ElementType: PartType: VariableattributesGroupnumber: 1InterArrivalTime: POISSON(2)FirstArrivalat: 0.0MaximumArrivals: UnlimitedInput/OutputRules Output: IF乘客的个人选择=1 IFkind=1 IFminsg3(NPARTS(Buffers001(1)),NPARTS(Buffers001(2)),NPARTS(Buffers001(3)))=1 PUSHtoBuffers001(1) ELSEIFminsg3(NPARTS(Buffers001(1)),NPARTS(Buffers001(2)),NPARTS(Buffers001(3)))=2 PUSHtoBuffers001(2) ELSEIFminsg3(NPARTS(Buffers001(1)),NPARTS(Buffers001(2)),NPARTS(Buffers001(3)))=3 PUSHtoBuffers001(3) ENDIF ELSEIFkind=2 IFminsg2(NPARTS(Buffers001(4)),NPARTS(Buffers001(5)))=1 PUSHtoBuffers001(4) ELSE PUSHtoBuffers001(5) ENDIF ENDIF ELSEIF乘客的个人选择=2 IFkind=1 PUSHtoBuffers001(3) ELSEIFkind=2 IFminsg2(NPARTS(Buffers001(4)),NPARTS(Buffers001(5)))=1 PUSHtoBuffers001(4) ELSE PUSHtoBuffers001(5) ENDIF ENDIF ELSEIF乘客的个人选择=3 IFminsg2(NPARTS(Buffers001(4)),NPARTS(Buffers001(5)))=1 PUSHtoBuffers001(4) ELSE PUSHtoBuffers001(5) ENDIF ELSEIF乘客的个人选择=4 PUSHtoBuffers001(6) ELSE Wait ENDIFActions Create: DIMxASREAL x=RANDOM() IFx>=0ANDx<0.45 乘客的个人选择=1 ELSEIFx>=0.45ANDx<0.9 乘客的个人选择=2 ELSEIFx>=0.9ANDx<=0.98 乘客的个人选择=3 ELSEIFx>=0.98ANDx<=1 乘客的个人选择=4 ENDIF kind=1 IF乘客的个人选择=1 购票金额=NORMAL(600,100) IF购票金额>400ANDx>=0.2 kind=2 ENDIF ELSEIF乘客的个人选择=2 购票金额=NORMAL(3000,500) IF购票金额>100AND购票金额<3000ANDx>=0.2OR购票金额>=3000 kind=2 ENDIF ELSEIF乘客的个人选择=3 kind=2 ELSEIF乘客的个人选择=4 kind=3 ENDIFELEMENTNAME:乘客的个人选择ElementType: AttributeQuantity: 1ELEMENTNAME:动车自动售票机ElementType: MachineQuantity: 1Priority: LowestType: SingleCycleTime: UNIFORM(2,5)Input/OutputRules Input: PULLfromBuffers001(1) Output: PUSHtoSHIPELEMENTNAME:非动车售票机ElementType: MachineQuantity: 1Priority: LowestType: SingleCycleTime: UNIFORM(2,5)Input/OutputRules Input: PULLfromBuffers001(2) Output: PUSHtoSHIPELEMENTNAME:服务时间ElementType: AttributeQuantity: 1ELEMENTNAME:改签（退票窗口）ElementType: MachineQuantity: 1Priority: LowestType: SingleCycleTime: UNIFORM(10,40)Input/OutputRules Input: PULLfromBuffers001(6) Output: PUSHtoSHIPELEMENTNAME:购票金额ElementType: AttributeQuantity: 1ELEMENTNAME:网络购票取票机ElementType: MachineQuantity: 1Priority: LowestType: SingleCycleTime: 服务时间Input/OutputRules Input: PULLfromBuffers001(3) Output: PUSHtoSHIPActions Input: IF乘客的个人选择=1 服务时间=UNIFORM(4,10) ELSE 服务时间=UNIFORM(2,5) ENDIFELEMENTNAME:学生票窗口ElementType: MachineQuantity: 1Priority: LowestType: SingleCycleTime: 服务时间Input/OutputRu