摘要本文重点提出了调查单位材料的控制机制组合排序,并将分拣操作过程理解为订单的到达过程,每个分拣器类型订单的服务过程和分拣机器之间的转换过程。在控制过程中分拣器的分类线分为优先级分拣器和普通分拣器，优先级分拣器使用完整服务控制,普通分拣器使用有限的服务(k=1),适用于查询服务体系理论,通过嵌入式马尔可夫链和概率生成函数建立系统的数学模型,精确解决控制机制模型和第一和第二查询系统的特征参数,结合实际生产订单的优先级参数选择进行仿真分析。关键词：拣选，查询机制，中等优先级查询。AbstractAbstract—Thepaperproposedtheprioritypollingcontrolmechanismoftheunitmaterialcombinationssortinglines,andsortersoperatingprocessisunderstoodtobethearrivalprocessoforders,serviceprocessofeachsortersortsordersandtheconversionprocessbetweensortingmachines.Controlprocess,sortersofthecombinedsortinglinesaredividedintotheprioritysortersandordinarysorters,prioritysortersusefullservicecontrol,ordinarysortersuselimitedservice(k=1),appliesthepollingservicesystemtheory,throughtheembeddedMarkovchainandprobabilitygeneratingfunctiontoestablishthemathematicalmodelofthesystem,theexactsolutionofthecontrolmechanismofthepollingsystemmodelandthefirstandsecondcharacteristicparameters,combinedwiththeactualproductionpriorityparametersoforderspickingforsimulationanalysis.IndexTerms—OrderPicking;PollingMechanism;SecondaryPriorityPolling第1页目录摘要......................................................................................................................11绪论............................................................................................................41.1物流分拣系统简介.................................................................................41.2物流分拣系统的发展及应用情况.........................................................41.3分拣系统的意义.....................................................................................52物流分拣系统的结构和运行原理............................................................72.1物流分拣系统的结构.............................................................................72.1.1传送带与电机简介......................................................................................72.1.2传感器简介................................................................................................102.1.3可编程控制器（PLC）简介....................................................................102.1.4电磁阀........................................................................................................122.2物流分拣系统的运行原理...................................................................143物流分拣系统中硬件选择设计..............................................................153.1传送带与电机的选择...........................................................................153.2电机启动控制.......................................................................................173.3传感器的选择.......................................................................................173.4可编程控制器的选择...........................................................................193.4.1输入输出I/O点的估算.............................................................................193.4.2储存容量的估算........................................................................................193.4.3控制功能的选择.................................................
