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中文摘要：
本文是在充分研究了GIS和GPS的前提下，运用数据库、数据结构、Maplnfo等相关知识，提出了一个能在实际的车辆监控系统中较大幅度减少装置与中心监控服务器通信量的有效方法，即：共享信息库（SIDB）．该方法通过在装置及中心监控服务器中建立共享信息库，减少了两者之间不必要的通信需求，从而大大节省了通信费用．经实际验证，该方法是有效可行的．本文给出了该方法的实现模型及详细实现步骤．
英文摘要：
On the basis of the study of GIS and GPS and by the use of Database,Data Structure, Maplnfo,a new method named SIDB （Shared Information DataBase） is put forward,which is meant to be applied to the vehicle monitoring system so as to reduce the traffic between the device and the monitoring system as much as possible. By creating shared information DataBase in the device and the monitoring system, unnecessary traffic is reduced and large amounts of communication expense are saved. Through practical tests, this method is proved to be applicable and effective. The application model of this method and the detailed steps how to use SIDB are described in this paper.
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