SYSTEM AND METHOD FOR UPDATING A DIGITAL MAP IN A DRIVER ASSISTANCE SYSTEM
First Claim
1. A system for updating a digital map for a driver assistance system in a vehicle, wherein the digital map contains map data having coordinates and attributes for characterizing subregions of an overall region depicted by the digital map, wherein the system comprises:
- a base station; and
a plurality of vehicles, each vehicle having a driver assistance system having;
a memory unit for storing map data from at least a portion of the digital map;
a receiver unit for receiving updated map data; and
a control unit configured to update the stored map data using the received updated map data;
a position finding unit configured to ascertain coordinates of the vehicle; and
a transmission unit configured to send the coordinates of the vehicle to the base station;
the base station having;
at least one transmission unit configured to send the updated map data having updated attributes to the receiver unit of the driver assistance systems;
a receiver unit configured to receive the coordinates of the vehicles;
a memory unit configured to store the coordinates of the vehicles; and
a computation unit configured to select, for each of the subregions, those of the stored coordinates of the vehicles that are situated within the subregion, and to use these stored coordinates of the vehicle to update the attributes of this subregion.
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Accused Products
Abstract
A system and method for updating a digital map for a driver assistance system in a vehicle. The digital map contains map data having coordinates and attributes for characterizing subregions of an overall region of the digital map. The system includes a base station and a plurality of vehicles, each equipped with a driver assistance system. The base station has at least one transmission unit for sending updated map data having updated attributes to the driver assistance systems. The driver assistance system has a memory unit for storing map data from at least a portion of the digital map, a receiver unit for receiving the updated map data sent by the base station and a control unit for updating the stored map data using the received updated map data.
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Citations
12 Claims
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1. A system for updating a digital map for a driver assistance system in a vehicle, wherein the digital map contains map data having coordinates and attributes for characterizing subregions of an overall region depicted by the digital map, wherein the system comprises:
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a base station; and a plurality of vehicles, each vehicle having a driver assistance system having; a memory unit for storing map data from at least a portion of the digital map; a receiver unit for receiving updated map data; and a control unit configured to update the stored map data using the received updated map data; a position finding unit configured to ascertain coordinates of the vehicle; and a transmission unit configured to send the coordinates of the vehicle to the base station; the base station having; at least one transmission unit configured to send the updated map data having updated attributes to the receiver unit of the driver assistance systems; a receiver unit configured to receive the coordinates of the vehicles; a memory unit configured to store the coordinates of the vehicles; and a computation unit configured to select, for each of the subregions, those of the stored coordinates of the vehicles that are situated within the subregion, and to use these stored coordinates of the vehicle to update the attributes of this subregion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for updating a digital map for a driver assistance system in a vehicle, wherein the digital map contains map data having coordinates and attributes for characterizing subregions of an overall region depicted by the digital map, wherein a plurality of vehicles each have a driver assistance system having a memory unit, comprising:
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storing at least one portion of the map data by each of the memory units; sending updated map data having updated attributes to the driver assistance systems by at least one transmission unit of a base station; receiving the map data being by receiver units in the driver assistance systems; updating the map data stored in the respective memory unit of the driver assistance systems by the control units of the driver assistance systems using the received updated map data; ascertaining coordinates for each of the vehicles using a position finding unit in the driver assistance system of each of the vehicles; sending the coordinates to the base station by a transmission unit in each of the driver assistance systems; receiving the coordinates by the base station using a receiver unit in the base station; storing the coordinates using a memory unit in the base station; selecting the stored coordinates of the vehicles that are situated within the subregion for each of the respective subregions by a computation unit in the base station; and updating the attributes of the subregion using the selected stored coordinates of the vehicles.
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Specification