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The Research on Route Optimization of Tobacco Distribution Based on GIS

Author: ZhouWeiWu
Tutor: ZhangYunHua
School: Zhejiang University of Technology
Course: Signal and Information Processing
Keywords: Line optimization JPPF Grid computing Geographic Information Systems
CLC: P208
Type: Master's thesis
Year: 2010
Downloads: 183
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Abstract


With the development of modern science and technology and the market economy , the impact of logistics on economic activity is increasingly evident. The rapid development of information technology , but also contribute significantly to the development of the logistics management information . Logistics and distribution logistics activities directly connected with consumers link directly affect the economic efficiency of enterprises , the quality of management and quality of service . The vehicle scheduling is a key link in the logistics . Therefore , the vehicle route optimization study is of great significance to enhance service levels , improve resource utilization , reduce costs . Distribution area of the geographical area against tobacco companies , the dynamic distribution of geographical location of customers , customer demand , different distribution vehicle performance , complex traffic line conditions , we use a combination of methods of heuristic algorithms and grid computing line arrangements to optimize . Do the following : (1) of the smaller tobacco distribution area VRPTW analysis , delivery vehicles and distribution points , setting the objective function to build a mathematical model constraints , use improved genetic algorithm to calculate the through line the operation of the internal convergence between the operation and the line of convergence to get a better solution . ( 2 ) regional distribution point for larger tobacco distribution , road conditions and vehicle information to analyze and establish the mathematical model , the proposed delivery area be divided based on the degree of polymerization of the amount of effective mission and tasks balance meshing algorithm , the the mathematical model considers divided to form a distribution task for the Chinese postman problem , and solving them . ( 3) will be divided each distribution tasks genetic algorithm for grid resource calculation . To guarantee the quality of service and calculate the speed of grid computing , grid computing, task scheduling algorithm is proposed based on the probability of load balancing and QoS priority scheduling algorithm JPPF algorithm simulation results show that tens of thousands of points the line optimization calculation can be completed in a relatively short period of time . (4 ) consider the specific context of the tobacco business applications , needs analysis , structural analysis, process analysis, modular design, the theoretical knowledge is applied to the optimization algorithm module , combined with GIS technology given route optimization system modeling and system the design process and the results show with GIS software .

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > General issues > Mapping database and information system
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