Handling of errors in map data

摘要

A system for handling errors in map data Dmap. Information I related to map data Dmap is determined by a determination unit. An identification unit then identifies at least one error in the map data Dmap on the basis of the information I determined. Thereafter a storage unit stores data D related to the at least one error identified in map data Dmap. A data providing unit can then at least partly disregard the map data Dmap including the error, when supplying map data Dmap, so that the stored data D may instead be used in decision making. The risk of decisions being based on erroneous map data Dmap may thus be minimized.

主权项

1. A system for handling errors in map data (Dmap), comprising
a processor configured for determining first information (I1) related to map data (Dmap), and for labeling erroneous map data (Dmap, error) comprising at least one error in said map data (Dmap) with said first information (I1) determined, and a memory configured for storage of data (D) related to said at least one labeled error in map data (Dmap), wherein said processor is further configured for at least partly disregarding said erroneous map data (Dmap, error), at decision making on board a first vehicle, and for instead providing said stored data (D), including estimated data (Dest), to at least one of a decision making system and a driver of said first vehicle, said processor is further configured for labeling an error included in said at least one error with said first information (I1), a determination of said error included in said at least one error being performed by a comparison of a first road gradient (Dmap, α1) obtained from said map data (Dmap) for a first road segment with a second road gradient (Dmap, α2) obtained from said map data (Dmap) for a second road segment, wherein said first and second road segments are mutually adjacent, said processor is further configured for storing second information (I2), which comprises at least one of: a location of said first vehicle, a direction in which said first vehicle is moving, and a distance traveled by said first vehicle since the last recorded location of said first vehicle included in said second information (I2), said second information (I2) being stored temporarily until said error included in said at least one error is determined, for subsequent use of at least a portion of said second information (I2) in said stored data (D), and said at least portion of said second information (I2) is used as a basis for said stored data (D) when said error included in said at least one error is determined, said stored data (D) including said first information (I1), said first information (I1) comprising at least one of: a location of said first vehicle when said error included in said at least one error was determined, a direction in which said first vehicle was moving when said error included in said at least one error was determined, and a distance traveled by said first vehicle over which said error included in said at least one error was observed, said first information (I1) being used to select a portion of said estimated data (Dest), which corresponds to said erroneous map data (Dmap, error), to be provided to at least one of a decision making system and a driver of said first vehicle by said processor, instead of said erroneous map data (Dmap, error), which includes said error included in said at least one error.