Research And Implementation Of Distributed-based Navigation System

Navigation technology is the key technology in intelligent traffic, aerospace and the current research. Also the navigation system is more and more applied and promoted. To meet the evolving needs of the market, we must improve the efficiency and precision of navigation. With the development of network technology and GPRS wireless technology, the volume of data is increasing rapidly. The data may be located in different network environment and different information space, so how to access and use it is very important for users. The navigation system needs to provide an effective way to manage these data resources and a unified data access method for the resource user. This paper, studying about how to use CORBA-based distributed navigation technology to obtain and use data resources, and focusing on the solution of unified data access interface of distributed data resources in navigation system, has a high practical value. Beginning with solving the problem faced by navigation system, aiming at designing an efficient and practical navigation system, combining the advantages of the current navigation system, it presents a design of distributed navigation system, and focuses on illustrating the design of DBNYS server.In order to support the plug-In method for the distributed design, the paper presents a standard interface which supports file database and relational database .At the same time , based on the access interface of file database Firebird and large-scale business relational database Oracle, Sybase and Mysql, it designs and implements the plug-in of database access interface. Finally, it gives an application of the distributed navigation system.