Research on Metadata management technology of Navigation and Location Service based on Atlas

For navigation and location services with a large amount of data and data isomerism, space-time characteristics, characteristics of dynamic change, first put forward by unified service metadata standard navigation and position, navigation and location service data information heterogeneity, secondly build navigation and location services under the standard database, based on the Atlas metadata management tools, So as to realize the effective overall management of navigation and location service metadata, efficient query and retrieval, and improve the efficiency of data sharing and application.