METHOD AND APPARATUS FOR GENERATING MAGNETIC FIELD MAP FOR DATABASE CONSTRUCTION
First Claim
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1. A method of generating a magnetic field map, the method comprising:
- collecting a magnetic field value of a sample area comprising at least a portion of a target area;
verifying a magnetic field characteristic of the sample area based on the magnetic field value of the sample area;
determining a sampling interval for the target area based on the magnetic field characteristic of the sample area;
collecting a magnetic field value of the target area at the sampling interval; and
generating a magnetic field map based on the collected magnetic field value of the target area.
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Abstract
Provided is a method and apparatus for generating a magnetic field map using a magnetic field value collected in a sample area. The magnetic field map may be used to verify a user location based on a geomagnetic field.
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Citations
20 Claims
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1. A method of generating a magnetic field map, the method comprising:
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collecting a magnetic field value of a sample area comprising at least a portion of a target area; verifying a magnetic field characteristic of the sample area based on the magnetic field value of the sample area; determining a sampling interval for the target area based on the magnetic field characteristic of the sample area; collecting a magnetic field value of the target area at the sampling interval; and generating a magnetic field map based on the collected magnetic field value of the target area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for generating a magnetic field map, the apparatus comprising:
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a first collection unit configured to collect a magnetic field value of a sample area comprising at least a portion of a target area; a processor configured to verify a magnetic field characteristic of the sample area based on the magnetic field value of the sample area, and to determine a sampling interval for the target area based on the magnetic field characteristic of the sample area; a second collection unit configured to collect a magnetic field value of the target area based on the sampling interval; and a map generating unit configured to generate a magnetic field map based on the collected magnetic field value of the target area. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification