"基于PLC的物流分拣系统设计与控制机制优化实用文档"

The document "Design of Logistics Sorting System based on PLC [Practical Document]" focuses on the control mechanism of unit material combinations sorting lines and interprets the sorting process as the arrival process of orders, with each type of sorter having a service process for orders and a transition process between sorting machines. In the control process, sorters are classified into priority sorters and regular sorters, with priority sorters using complete service control and regular sorters using limited service (k = 1), suitable for queuing service system theory. The paper establishes a mathematical model of the system through embedded Markov chains and probability generating functions, accurately solving the characteristic parameters of the control mechanism model and the first and second queuing systems, and conducts simulation analysis based on the priority parameters of actual production orders. Key terms include sorting, queuing mechanism, and medium priority queuing. The abstract emphasizes the proposal of a priority polling control mechanism for unit material combinations sorting lines and the understanding of the sorting process as the arrival process of orders with various types of sorters. The document presents a detailed analysis of the control mechanism model and the characteristics of queuing systems, incorporating practical priority parameters for simulation analysis.