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US 8,949,020 B2Granted
Map-matching apparatus using planar data of road, and method for same
AssigneeThinkwaresystems Corp
InventorJungho Lee
Life of this patent
Estimating the term…
Abstract
A map matching apparatus and method are provided. The map matching apparatus comprises a location determining unit configured to determine whether a GPS receipt location is located within planar data for a road, and a map matching unit configured to perform map matching on the GPS receipt location depending on whether the GPS receipt location is located within the planar data.
Claims20
A map matching apparatus comprising:
- a location calculator configured to
- receive a GPS (Global Positioning System) signal from a GPS receiver and
- calculate a GPS receipt location corresponding to the received GPS signal;
- a storage configured to
- store linear data that represents roads in a form of line, and
- store planer data that represents roads in a form of plane by transforming the linear data based on an actual width of the road;
- a location determining unit configured to
- load the linear data and the planar data for a road located around the GPS receipt location and
- determine whether a GPS receipt location is located within the planar data;
- and
- a map matching unit configured to perform map matching that corrects the GPS receipt location depending on whether the GPS receipt location is located within the planar data and places the corrected GPS receipt location on the road.
8 more elements
A map matching method comprising:
- using a map matching apparatus to perform the map matching method, wherein the map matching apparatus comprises a location calculator, a location determining unit, a map matching unit, and a storing unit, the using of the map matching apparatus comprising;
- storing linear data that represents roads in a form of line;
- storing planer data that represents roads in a form of plane by transforming the linear data based on an actual width of the road by the storing unit;
- receiving a GPS (Global Positioning System) signal and a calculation of a GPS receipt location corresponding to the received GPS signal by the location calculator;
- loading the linear data and the planar data for a road located around the GPS receipt location;
- determining whether a GPS receipt location is located within the planar data for a road by the location determining unit;
- and
- performing map matching that corrects the GPS receipt location depending on whether the GPS receipt location is located within the planar data and places the corrected GPS receipt location on the road by the map matching unit.
5 more elements
A non-transitory computer readable recording medium storing a program for implementing a map matching method comprising:
- using a map matching apparatus to perform the map matching method, wherein the map matching apparatus comprises a location calculator, a location determining unit, a map matching unit, and a storing unit, the using of the map matching apparatus comprising;
- storing linear data that represents roads in a form of line;
- storing planer data that represents roads in a form of plane by transforming the linear data based on an actual width of the road by the storing unit;
- receiving a GPS (Global Positioning System) signal and a calculation a GPS receipt location corresponding to the received GPS signal by the location calculator;
- loading the linear data and the planar data a road located around the GPS receipt location;
- determining whether a GPS receipt location is located within the planar data for a road by the location determining unit;
- and
- performing map matching that corrects the GPS receipt location depending on whether the GPS receipt location is located within the planar data and places the corrected GPS receipt location on the road by the map matching unit.
5 more elements
Dependencies are inferred from the claim text.