METHOD FOR FORMING IMPROVED CARTOGRAPHIC DATA FOR USE IN NAVIGATION DEVICES AND A NAVIGATION DEVICE WITH IMPROVED CARTOGRAPHIC DATA

摘要

1. A method for replenishing cartographic data in a navigation device, containing the stages at which:! loading map data into memory; ! calculating at least one of the location, speed and direction of the vehicle; ! determining if there is a conflict between said map data and at least one of said location, said speed and said direction of travel; ! in case of a conflict, generating map correction data based on at least one of said location, said speed and said direction of travel; and! in the absence of a conflict, confirm the accuracy of the referenced cartographic data. ! 2. The method of claim 1, further comprising the step of displaying a user request. ! 3. The method according to claims 1 and 2, further comprising stages, which:! provide a menu-driven selection of possible changes; ! take input data containing at least one of the mentioned changes; and! generating map correction data containing said at least one of said changes. ! 4. The method according to claim 1, further comprising the steps of:! determine if said map data contains said location,! if said map data contains said location, it is determined whether said map associates said current location with a vehicle's location, and! if said current location is not associated with the vehicle location, an update request is generated. ! 5. The method according to claim 1, optionally