集装箱码头物流运营系统通用性仿真建模共性抽象研究

Generality Abstract Methodology of General Simulation Modeling for Container Terminals Logistics Operations System

共性抽象是通用性仿真建模的必经过程和基础。提出一种创新的共性抽象方法为基于离散事件动态系统的集装箱码头物流运营系统通用性仿真建模提供一个较为清晰的全貌、框架和体系。首先以辩识该系统仿真建模的关键性问题为突破,构建共性抽象的对象和核心元素;继而通过高度提炼和概括,抽象通用性的基本属性和特征,并建立相应的基于离散事件动态系统的人为规则;然后按照人为规则将共性抽象的基本元素抽象为逻辑元素和实体元素,并设计为相应的标准化图例集以系统地描述共性抽象,既可提供给程序设计人员对程序逻辑进行建模,也可提供给非程序设计人员对业务过程进行建模;最后通过对洋山深水港一期集装箱码头仿真实验,验证所提出的共性抽象方法的有效性。

The generality abstract is the necessary process for general simulation modeling.A novel generality abstract methodology was proposed,which provided a clear overview and framework for general simulation modeling for container terminals logistics operations system based on the discrete event dynamic systems.Firstly,identifying critical issues in the simulation modeling was broken through,on the basis of which the objects and essential elements of generality abstract were created.Secondly,by means of summarizing and refining on them,the primary attribute and characteristics of generality were abstracted and corresponding artificial rules in the systems were established.Thirdly,the main elements of generality abstract were defined as logic elements and event elements in accordance with the rules and standard legend set was accordingly designed to depict generality abstract systematically,which could be used to describe the simulation logic in programming by computer programmers and model a real system via operational tasks by non-programmers.Finally, Container Terminals of Phase I of Shanghai Yangshan Port was simulated using the simulator.The simulation output shows the effectiveness of the generality abstract methodology of general simulation modeling.