吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (02): 397-0401.

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Data organization method for traffic information acquisition system based on GPSequipped floating vehicle

IANG Gui-yan 1,2|ZHANG Wei2|CHANG An-de2   

  1. 1.State Key Laboratory of Automobile Dynamic Simulation, Jilin University,Changchun 130022,China|2.College of Transportation, Jilin University, Changchun 130022, China
  • Received:2008-12-31 Online:2010-03-01 Published:2010-03-01
  • Supported by:

    “863”国家高技术研究发展计划项目(2007AA11Z245，2007AA12Z242)；高等学校博士学科点专项科研基金项目（20070183129）

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Abstract:

In the traditional traffic information acquisition system based on the GPSequipped floating vehicle, the data utilization efficiency as well as the efficiency of development and operation are low due to the dispersed and nonstandardized data store mode of the system. Therefore, taking the enhancement of the data utilization efficiency and the optimization of system development and operation patterns as targets, based on the objectoriented software design idea, the requirement analysis of the system, and the architechture frame design, a data flow diagram of the system was defined, a hierarchical organization method of data was proposed, and a conceptual model and a logical model of the dynamic database of the system were built. The proposed method can integrate and share the system data resource effectively, reduce the coupling degree of all functional modules, enhance the data utilization efficiency, improve the efficiency of development and operation of the traffic information acquisition system based on the GPSequipped floating vehicle.

Key words: transportation system engineering, GPSequipped floating vehicle, data organization, conceptual model, logical model

CLC Number: 

  • U491.1
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