从系统资源配置与服务水平相匹配的角度出发
由于电子商务的飞速发展,全球物流业方兴未艾,同时也向物流业提出了新的挑战。虽然在国内支撑B2C电子商务的物流模式多样化,但从总体上来讲该体系还不完善,跟不上B2C电子商务的发展速度。如果对电子商务的物流问题没有足够的认识和充分的重视,电子商务的优势就很难在我国发挥出来。因此,以B2C电子商务为对象,展开物流配送系统的规划研究具有现实的理论与实践意义。
本文针对以往物流系统规划中对各层面之间的制约关系考虑不足的弱点,从配送系统资源配置与对客户所承诺的服务水平相匹配的角度,进行了B2C电子商务物流配送系统规划的相关研究,其主要展开了以下内容:
l 在对B2C电子商务物流配送系统的构成及各要素特征进行分析的基础上,从本论文研究的角度提出了系统规划的框架,主要包括规划的概念、目标、主要任务及实现技术。
l 针对规划所提出的系统资源配置规划任务,充分考虑了现阶段我国城市电子商务发展的现状以及电子商务物流需求特征等因素,建立了混合配送中心布局决策模型以及有交通条件约束与时间窗约束的配送配载综合模型来进行配送中心与车辆的配置决策,并进行了模型的遗传算法设计。
l 为评价系统的资源配置决策结果与所承诺的服务水平之间的匹配关系,本论文建立了B2C电子商务物流配送运行仿真系统。第一,确立了B2C电子商务物流配送运行系统仿真的模型体系结构,主要由顾客需求产生模型、资源配置方案描述模型、配送网络描述模型、配送系统运行模型、交通网络分析模型、仿真评价模型六大类型的模型构成;第二,以该模型体系结构为框架,建立了该系统仿真的核心模型;第三,提出了B2C电子商务物流配送运行系统仿真软件开发中一些关键技术问题的处理方法,包括面向对象软件设计技术、系统设计及实现技术、软件输入输出界面技术等;最后开发了电子商务物流配送运行系统仿真软件。
关键词:B2C电子商务 物流配送系统 规划 配送中心布局 车辆配置 配送运行系统 仿真
Abstract
As the rapid development of e-commerce ,which brings new chances and challenges to logistics .there are many logistics models supporting the national B2C e-commerce, but generally the logistics system is not perfect so that it can’t meet the demand of EC. If the logistics of EC is not given enough attention , EC will have no more privillege. Under such a background, the dissertation , which oriented to the planning of distribution system for EC ,shows its signification both in theoretic and practical application.
Allowing for the shortcoming of former distribution system planning which pays less attention to the relationship between macro and micro and from the prospective of the system resource configuration and service level, the thesis focuses on the study of planning of EC distribution system which mainly includes the following aspects:
l Based on the logistics demand characteristic of clients of EC, the logistics system’s conceptual design and the planning’s tasks and objectives of macro and micro levels are studied.
l The paper builds the mathematics models of distribution center layout decision and the models of delivery and loading under traffic conditions and soft time-window based on the current condition of the development of EC and the logistics demand characteristic of clients of EC and the algorithm design.
l In order to evaluate the relationship of the system resource configuration and the service level, the thesis builds the simulation system of EC distribution operating . First, A model architecture is made up of client demand model , resource configuration scheme description model, distribution network representation model, distribution system operating model, traffic network analysis model, simulation evaluation model ,and so on. Secondly ,under the framework of model architecture ,the kernel simulation models are developed. Thirdly, some key techniques of developing a distribution operation simulation software system are presented in the thesis, which covers the topics on object-oriented design, system design, input/output interface design and etc. Finally, the software system is developed.
Keywords:EC distribution system planning distribution center layout vehicle configuration distribution operating system simulation
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