A method of updating data stored in a mobile navigation system and navigation device

摘要

The invention relates to a method for updating of data stored in a mobile navigation device and a navigation device for reducing the storage requirement of a digital map. To update the data of a digital map and updating data are in a little memory-intensive reason objects and memory-intensive the addition of objects. the reason objects for the navigation system are required and the addition of objects of the improved orientation. In the case of an update, the base objects in the entire map area is updated, the addition of objects, however, only in a partial region of the card, the manually and / or with the use of a recorded travel history is determined. The addition of objects that do not lie in the sub-region are deleted.