Method and Device for Managing Map Data of a Digital Map for a Navigation Apparatus

摘要

In a method and a corresponding device for managing map data of a digital map for a navigation apparatus, the map data include original map data, wherein the original map data are each associated with one or more original map tiles. A validity indicator is assigned to each of the original map tiles. In the event of an update of an update map tile, associated update map data are assigned and permanently stored, wherein the particular update map tile is provided in order to replace the associated original map tile. After the update map data of the particular update map tile have been successfully stored, the validity indicator of the associated original map tile is set to invalid. During operation of the navigation apparatus, the particular original map tile is loaded if the validity indicator assigned thereto is valid, and otherwise the update map tile associated with the particular original map tile is loaded.

主权项

1. A method for managing map data of a digital map of a navigation apparatus, the method comprising the acts of:
storing original map data of the map data to be managed in a memory allocated to the navigation apparatus; allocating, in each case, the original map data to one of a number of original map tiles; allocating, in each case, a validity indicator to the original map tiles; in an event of an update of the map data, storing permanently associated update map data that are allocated to an update map tile, wherein a respective update map tile is provided for replacing an associated map tile; after successfully storing the associated update map data of the respective update map tile, setting the validity indicator of the associated original map tile to invalid; and loading, during operation of the navigation apparatus, the respective original map tile if it's allocated validity indicator is valid and, otherwise loading the update map tile allocated to the respective original map tile.