基于时间Petri网的内陆港集装箱物流系统的建模与仿真

发布时间：2018-12-08 09:55

【摘要】：近年来，随着内陆腹地国际贸易额的不断增大、新亚欧大陆桥竞争力的提升以及国际多式联运的发展，与沿海港口具有相似功能的、依托于内陆铁路集装箱运输网络的内陆港应运而生。然而，我国对内陆港的建设才刚刚开展，国内基本上没有多少运营经验可以借鉴。因此，如何对内陆港集装箱物流系统进行合理有效的规划，如何在充分发挥其作业能力的同时最大限度地节约成本，是目前急需解决的问题。针对内陆港集装箱物流系统的特点，本文对建立合适的系统模型并应用计算机对系统模型进行仿真的理论方法及关键技术进行了研究。本文在总结内陆港集装箱物流系统的国内外相关研究现状的基础上，选择适用于离散事件动态系统建模的Petri网分析技术对内陆港集装箱物流系统进行建模。通过探讨Petri网的基础理论，综合考虑时间Petri网与控制Petri网的特征，采用带有控制因子的时间Petri对系统进行建模分析。按照内陆港的业务运作模式将内陆港集装箱物流系统分为进口物流系统、出口物流系统和内贸物流系统三个子系统；在深入分析各子系统作业流程的基础上，结合时间Petri网建模的特点，采用自上而下的路径对各子系统分别进行建模，并对模型的性能进行分析。在此基础上，对进口物流系统的时间Petri网模型应用Matlab环境下的Stateflow软件包进行仿真实现。为了验证所提出的研究方法的可行性和实用性，本文根据国内外内陆港的实际运行情况设置了仿真案例，通过对案例进行仿真运行，找出系统“瓶颈”所在，并给出改进措施，，结果表明，本文提出的建模与仿真技术可以为内陆港的管理与决策提供有效的参考依据。
[Abstract]:In recent years, with the increasing international trade volume in inland hinterlands, the competitiveness of the New Asia-Europe Continental Bridge and the development of international multimodal transport have similar functions to coastal ports. The inland port which relies on the inland railway container transportation network emerges as the times require. However, the construction of inland port in our country has just been carried out, and there is not much experience to learn from in our country. Therefore, how to plan the container logistics system of inland port reasonably and effectively and how to maximize the cost saving while giving full play to its operation ability is an urgent problem to be solved at present. According to the characteristics of container logistics system in inland port, this paper studies the theory, method and key technology of establishing suitable system model and using computer to simulate the system model. On the basis of summarizing the research status of container logistics system in inland port at home and abroad, this paper chooses Petri net analysis technology which is suitable for discrete event dynamic system modeling to model container logistics system in inland port. By discussing the basic theory of Petri net and considering the characteristics of time Petri net and control Petri net, the system is modeled and analyzed by time Petri with control factor. According to the business operation mode of inland port, the container logistics system of inland port is divided into three subsystems: import logistics system, export logistics system and domestic trade logistics system. On the basis of deeply analyzing the work flow of each subsystem and combining the characteristics of time Petri net modeling, the top-down path is used to model each subsystem, and the performance of the model is analyzed. On this basis, the time Petri net model of import logistics system is simulated by Stateflow software package under Matlab environment. In order to verify the feasibility and practicability of the proposed research method, a simulation case is set up according to the actual operation of inland ports at home and abroad. Through the simulation operation of the case, the "bottleneck" of the system is found, and the improvement measures are given. The results show that the modeling and simulation technology presented in this paper can provide an effective reference for the management and decision-making of inland ports.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：U695.22

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