SYSTEM AND METHOD FOR AUTOMATED UPDATING OF MAP INFORMATION
First Claim
Patent Images
1. A system for updating a map database, comprising:
- a data reception module configured to obtain a first roadway size characteristic associated with a first road and a second roadway size characteristic associated with a second road, the first road and the second road meeting at an intersection; and
an inference processor operably connected to the data reception module and configured to derive from the first roadway size characteristic and the second roadway size characteristic additional information not already stored within the map database and automatically update the map database to reflect the additional information, wherein the additional information denotes presence of a traffic control device.
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Abstract
The characteristics of two intersecting roadways are compared to determine whether an inference can be made as to whether there are traffic controls (e.g., stop signs) on one of the roadways. If a larger road with characteristically higher speed intersects with a small road with lower speed, the small road is determined to have a stop sign. A map database is updated with the information regarding the inferred traffic control, and that information is then usable for purposes such as trip planning.
45 Citations
20 Claims
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1. A system for updating a map database, comprising:
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a data reception module configured to obtain a first roadway size characteristic associated with a first road and a second roadway size characteristic associated with a second road, the first road and the second road meeting at an intersection; and an inference processor operably connected to the data reception module and configured to derive from the first roadway size characteristic and the second roadway size characteristic additional information not already stored within the map database and automatically update the map database to reflect the additional information, wherein the additional information denotes presence of a traffic control device. - View Dependent Claims (11)
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2. A system, comprising:
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a map database comprising information associated with roads; an input subsystem configured to provide roadway characteristics; an information inference module configured to derive from the roadway characteristics additional information not already stored within the map database and automatically update the map database to reflect the additional information. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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12. A method for automatically updating a map database, comprising:
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receiving map information from the map database, the map database comprising information associated with roads; receiving roadway characteristic information; deriving additional information not already stored within the map database responsive to the roadway characteristic information; and updating the map database to reflect the derived additional information. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification