基于MAS的集装箱自动化码头协同作业系统模型

摘要

This paper reviewed the researches about the application of MAS in the container terminal operation system. The purpose was not only to optimize the scheduling operation of ZPMC automatic container terminal,but also to perfect the theory of MAS in the field. It abstracted the equipment into a series of agents with a set of properties and behaviors. Then the paper proposed ship agent,task manage agent,machine manage agent and yard agent. The agent figure described the properties and methods of agents and their interactive relationship in detail. Combined the nearby principle with the time estimate optimization strategy, it presented the shortest path of the container loading/unloading and finally put forward a multi-agent based collaborative operation system about the terminal. The MAS model better reflected the dynamic and distribution characteristics of the automation terminal.%ZPMC新型集装箱自动化码头使用低架桥轨道和电动小车构成立体装卸系统,将集装箱的装卸分解为多个起重设备和水平运输设备的协作,实现了集装箱的自动装卸.针对该码头的运作特点,采用MAS(multiagent system,多智能体系统)方法,将码头中的装卸设备抽象为具有一系列属性和方法的智能体,提出船舶、堆场、任务管理、设备管理等智能体,构建出自动化码头协同作业系统模型.在系统的实现层类图中详细阐述了各agent的属性方法、交互关系,结合就近原则及时间估计优化策略,给出了集装箱装卸最短路径的搜索方案,通过实例分析说明协同作业系统MAS模型能较好地体现该码头分布、动态的运作特征.该研究将对ZPMC集装箱自动化码头的调度优化提供一定的理论指导,同时对完善MAS方法在集装箱码头生产作业中的应用体系起到积极的推动作用.