基于CBR的大件物流公路运输路径方案研究

发布时间：2018-03-04 15:09

本文选题：路径方案　切入点：道路通过性　出处：《重庆大学》2012年硕士论文　论文类型：学位论文

【摘要】：近年来，，由于市场经济进一步发展，大件运输行业内部竞争日趋激烈，利润空间受到很大压缩。如何提高企业核心竞争力，提高经济效益成为大件运输企业发展需要解决的关键问题。公路运输路径方案作为大件企业公路运输过程的技术指导方案，其制定的优劣程度是衡量企业竞争力的重要指标。因此，大件物流企业越来越来重视对公路运输路径方案的研究。本文针对衡量大件物流公路运输路径方案优劣性的三大指标：道路通过性、运输成本和运输时间展开研究，提出基于CBR技术的大件物流公路运输路径方案制定方法。论文的主要研究内容如下：首先，论文通过对国内外大件公路运输路径方案、道路通行性和CBR技术等的研究现状进行综述分析，为大件物流企业公路运输路径方案研究提供了理论支持。其次，对影响大件车组道路通过性的关键因素进行分析，研究道路通过性校核的运行机理，并在此基础上构建大件车组道路通过性的模型和算法，为初步筛选路径提供技术支持。再次，分析影响运输成本和运输时间的关键属性，构建运输案例表示的框架模型，设计案例组织结构、案例检索流程、案例修正流程，确定案例库的学习与维护方法，在此基础上，应用CBR技术来预估大件物流路径运输成本和运输时间以制定最终路径方案。最后，将研究成果应用于某工程案例中，通过道路通过性校核筛选出可通过的路径，通过CBR技术预估出各可通过路径的运输成本和运输时间，最终确定满足运输时间的前提下运输成本最低的路径方案，以验证本文提出方法的科学性和有效性。
[Abstract]:In recent years, due to the further development of the market economy, the internal competition in the large transport industry is becoming increasingly fierce, and the profit space is greatly compressed. How to improve the core competitiveness of enterprises, Improving economic benefits has become a key problem to be solved in the development of large transport enterprises. The quality of its establishment is an important index to measure the competitiveness of enterprises. Therefore, large logistics enterprises pay more and more attention to the research of road transportation route scheme. Based on the study of three indexes to measure the advantages and disadvantages of the road transport route scheme of large logistics: road passage, transportation cost and transportation time, this paper puts forward a method to formulate the road transport route scheme of large logistics based on CBR technology. The main contents of this thesis are as follows:. First of all, the thesis summarizes and analyzes the research status of the road transport route scheme, road passage and CBR technology at home and abroad, which provides theoretical support for the research on the road transport route scheme of large logistics enterprises. Secondly, the paper analyzes the key factors that affect the road passage of large vehicle group, studies the running mechanism of road pass checking, and constructs the model and algorithm of road passage of large vehicle group on this basis. Provide technical support for initial screening path. Thirdly, it analyzes the key attributes of transportation cost and transportation time, constructs the frame model of transportation case representation, designs the case organization structure, case retrieval process, case revision process, and determines the learning and maintenance methods of case base. On the basis of this, CBR technology is applied to estimate the transportation cost and time of large logistics route to make the final route plan. Finally, the research results are applied to a project case, and the traversing path is screened by road pass checking, and the transportation cost and time of each traversing path are estimated by CBR technology. Finally, the route scheme with the lowest transportation cost under the premise of meeting the transportation time is determined to verify the scientific and effective method proposed in this paper.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：F252;F542;F224

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