超市仿真作业实验报告

仿真作业实验报告基于flexsim的超市仿真模型及分析物管四班小组成员：刘佳2220102182戈洪宇2220101066韩松泽2220101064杨冰峰2220100745武禹陶2220101069孙富成2220101068孟庆伟2220100413实验目的以超市服务业务为背景，建立起适当的模型，通过运行模型，分析结果，熟悉flexsim软件运行流程和基本操作模型建立用processor模拟超市收银台，rack模拟超市内货架，进行如下图所示的模型建立：模拟超市模型中的顾客来源，到达分布以及排队情况均在source中设定。模拟流程为，顾客按照一定分布律到达，由收银台处进入超市，然后进入超市内进行购物，选购然后到收银台进行结账。参数设置：顾客到达服从exponential(0,30,1)分布，在如下图中设置：双击“operator”进行如下图的设置：点击resource中的flow，按下图所选同时将duniform(1,3)改为duniform(1,6)选择source2，同理按上图将数据改为duniform(1,6)选择queue3,并按下图所示选择更改sendtoport选项选择shortestqueue其意义为顾客选择最短排队而后选择triggers—onexit，进入代码编辑界面，打入如下代码treenodeitem=parnode(1);treenodecurrent=ownerobject(c);intport=parval(2);treenodets=createemptytasksequence(item,0,0);inttype=getitemtype(item);switch(type){ case1: { inserttask(ts,TASKTYPE_TRAVEL,centerobject(current,1),NULL); inserttask(ts,TASKTYPE_CALLSUBTASKS,centerobject(current,1),NULL,tonum(item),0); break; } case2: { inserttask(ts,TASKTYPE_TRAVEL,centerobject(current,2),NULL); inserttask(ts,TASKTYPE_CALLSUBTASKS,centerobject(current,2),NULL,tonum(item),0); break;} case3: { inserttask(ts,TASKTYPE_TRAVEL,centerobject(current,3),NULL); inserttask(ts,TASKTYPE_CALLSUBTASKS,centerobject(current,3),NULL,tonum(item),0); break; } case4: { inserttask(ts,TASKTYPE_TRAVEL,centerobject(current,4),NULL); inserttask(ts,TASKTYPE_CALLSUBTASKS,centerobject(current,4),NULL,tonum(item),0); break; } case5: { inserttask(ts,TASKTYPE_TRAVEL,centerobject(current,5),NULL); inserttask(ts,TASKTYPE_CALLSUBTASKS,centerobject(current,5),NULL,tonum(item),0); break; } default: { inserttask(ts,TASKTYPE_TRAVEL,centerobject(current,6),NULL); inserttask(ts,TASKTYPE_CALLSUBTASKS,centerobject(current,6),NULL,tonum(item),0);}}以上代码意义为通过switch将不同顾客分配到不同货架，同时传递消息给货架，让其进入下一任务点选rack，进入属性编辑，triggers—onmessage,进入代码页面，打入如下代码treenodecurrent=ownerobject(c);treenodeoperater=tonode(msgparam(1));treenodesubts=createemptytasksequence(operater,0,0); inserttask(subts,TASKTYPE_TRAVEL,current,NULL); inserttask(subts,TASKTYPE_FRLOAD,last(current),current); returnsubts;以上代码表示当收货架到信息，新建一任务序列，顾客在货架上取货，并行进到下一固定对象依次将代码编辑进不同rack选择processer，在trigger—onentry,,选项如下图所示模型运行及数据分析三个收银台的忙闲率如下面饼状图所示