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In intelligent transportation system (ITS), it is of great significance to share data among distributed and heterogeneous databases to realized system goal. In this paper a strategy of managing dynamic data information for multi-databases system in ITS under wide-area network (WAN) is proposed. Data directory is introduced to record data information of every database system, and is periodically updated by using alphabetical link for database structure set. Updating message is transferred peer-to-peer to avoid bottle neck at one system. Finally, the paper discusses how to detect the login and logout systems. A demo system based on the presented method is introduced to prove its validity.
Intelligent Vehicles Symposium, 2005. Proceedings. IEEE
Date of Conference: 6-8 June 2005