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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。
Abstract
Abstract—The paper proposed the priority polling control mechanism of the unit material combinations sorting lines, and sorters operating process is understood to be the arrival process of orders, service process of each sorter sorts orders and the conversion process between sorting machines. Control process, sorters of the combined sorting lines are divided into the priority sorters and ordinary sorters, priority sorters use full service control, ordinary sorters use limited service (k = 1), applies the polling service system theory, through the embedded Markov chain and probability generating function to establish the mathematical model of the system, the exact solution of the control mechanism of the polling system model and the first and second characteristic parameters, combined with the actual production priority parameters of orders picking for simulation analysis.
Index Terms—Order Picking; Polling Mechanism;Secondary Priority Polling
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目录
摘要 ...................................................................................................................... 1
1绪论 ........................................................................................................... 4 1.1物流分拣系统简介 ................................................................................ 4 1.2物流分拣系统的发展及应用情况 ........................................................ 4 1.3分拣系统的意义 .................................................................................... 5 2物流分拣系统的结构和运行原理 ........................................................... 7 2.1物流分拣系统的结构 ............................................................................ 7 2.1.1传送带与电机简介 ..................................................................................... 7 2.1.2传感器简介 ............................................................................................... 10 2.1.3可编程控制器（PLC）简介 ................................................................... 10 2.1.4电磁阀 ....................................................................................................... 12
2.2物流分拣系统的运行原理 .................................................................. 14 3物流分拣系统中硬件选择设计 ............................................................. 15 3.1传送带与电机的选择 .......................................................................... 15 3.2电机启动控制 ...................................................................................... 17 3.3传感器的选择 ...................................................................................... 17 3.4可编程控制器的选择 .......................................................................... 19 3.4.1输入输出I/O点的估算 ........................................................................... 19 3.4.2储存容量的估算 ....................................................................................... 19 3.4.3控制功能的选择 ....................................................................................... 20 3.4.4可编程控制器接线图 ............................................................................... 21
3.5电磁阀的选择 ...................................................................................... 21 3.6电气控制柜设计 .................................................................................. 25 4物流分拣系统软件设计 ......................................................................... 26 4.1物流分拣系统的控制要求 .................................................................. 26 4.2物流分拣系统流程图 .......................................................................... 27 4.3软件设计及编程 .................................................................................. 27 4.4梯型图 .................................................................................................. 29 5总结 ......................................................................................................... 31 致谢 ............................................................................................................ 32 参考文献 .................................................................................................... 33
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附录 ............................................................................................................ 35 附录Ⅰ ........................................................................................................ 35 附录Ⅱ ........................................................................................................ 36
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基于plc的物流分拣系统设计
