Converting between coordinate systems
First Claim
1. A method for converting between coordinate systems, said method comprising:
- determining a first set of coordinates for a plurality of locations in an environment using a first coordinate system, said first set of coordinates obtained by moving a mobile device to at least three locations in said environment wherein said at least three locations are defined by a position determining system comprising a plurality of fixed devices disposed in said environment;
accessing a second set of coordinates for said plurality of locations in said environment, and wherein said second set of coordinates are defined by a second coordinate system;
correlating said first set of coordinates with said second set of coordinates; and
deriving at least one matrix that is useable to convert a set of coordinates defined by the first coordinate system to a corresponding set of coordinates defined by said second coordinate system.
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Accused Products
Abstract
In one embodiment of the present invention, a first set of coordinates for a plurality of locations in a symmetric environment is accessed. The first set of coordinates are defined by a position determining system disposed in the symmetric environment which uses a first coordinate system. A second set of coordinates for the plurality of locations in the symmetric environment are accessed. The second set of coordinates are defined by a second coordinate system. The first set of coordinates are correlated with the second set of coordinates. Then, at least one matrix is determined that is useable to convert a set of coordinates defined by the first coordinate system to a corresponding set of coordinates defined by the second coordinate system.
34 Citations
20 Claims
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1. A method for converting between coordinate systems, said method comprising:
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determining a first set of coordinates for a plurality of locations in an environment using a first coordinate system, said first set of coordinates obtained by moving a mobile device to at least three locations in said environment wherein said at least three locations are defined by a position determining system comprising a plurality of fixed devices disposed in said environment;
accessing a second set of coordinates for said plurality of locations in said environment, and wherein said second set of coordinates are defined by a second coordinate system;
correlating said first set of coordinates with said second set of coordinates; and
deriving at least one matrix that is useable to convert a set of coordinates defined by the first coordinate system to a corresponding set of coordinates defined by said second coordinate system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer usable medium having computer readable program code embodied therein for causing a computer system to perform a method for converting between coordinate systems, said method comprising:
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determining a first set of coordinates for a plurality of locations in an environment using a first coordinate system, said first set of coordinates obtained by moving a mobile device to at least three locations in said environment wherein said at least three locations are defined by a position determining system comprising a plurality of fixed devices disposed in said environment;
accessing a second set of coordinates for said plurality of locations in said symmetric environment, and wherein said second set of coordinates are defined by a second coordinate system;
correlating said first set of coordinates with said second set of coordinates; and
deriving at least one matrix that is useable to convert a set of coordinates defined by the first coordinate system to a corresponding set of coordinates defined by said second coordinate system. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A system for converting between coordinate systems, said system comprising:
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a processing unit for performing a method for converting between coordinate systems, said method comprising;
correlating a first set of coordinates for a plurality of locations in an environment with a second set of coordinates for said plurality of locations, and wherein said first set of coordinates are defined by a position determining system using a first coordinate system comprising a plurality of fixed devices disposed in said environment and said second set of coordinates are defined by a second coordinate system; and
deriving at least one matrix that is useable to convert a set of coordinates defined by the first coordinate system to a corresponding set of coordinates defined by said second coordinate system;
a mobile device for initiating the determination of said first set of coordinates; and
a plurality of position devices for determining said first set of coordinates. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification