广域网络环境下交通数据管理方法研究

Study on Methods for Traffic Data Management under Network Environment

针对交通数据具有的分布、异构、自治、海量、动态和进化特征,提出了广域网络环境下,基于CORBA+Agent的交通数据管理方法,把交通数据管理分为局部数据管理和系统级数据管理两个层次。局部数据管理解决数据的自治、海量、动态和进化问题,系统级数据管理解决广域网络环境下的分布和异构问题,从而实现交通数据的无缝连接、透明访问、数据集成和综合服务。实际系统的开发说明此方法可以用于实际交通系统的数据管理中。

CORBA ＋ Agent is provided for the traffic data management under area network environment with distributional, heterogeneous, autonomous, stbstantial, dynamic and evolving characteristics.It consists of the local data management and systematic data management, where the former is adopted to solve the autonomous, substantial, dynamic and evolving problems and the latter is used to deal with the distributional and heterogeneous problems under area network environment. The discussed methods can resolve the prob- lem in traffic data management under the various networks, and can provide seamless and transparent accesses to all traffic data systems via the different networks. The integration and services of traffic data systems can also be implemented based on the described approach, which has been adopted for the practical projects in urban traffic control centers.