Method for dynamic creation of a GeoFence in a wireless system
First Claim
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1. A method for creating a dynamic geo-fence area comprising:
- determining an instant reference point using a first set of pseudorange measurements received by a geo-fence device;
defining the dynamic geo-fence area referenced to the instant reference point;
determining a position fix using a second set of pseudorange measurements, wherein the second set of pseudorange measurements is obtained by a tracked device separate from the geo-fence device; and
comparing the position fix to the dynamic geo-fence area.
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Abstract
A method and apparatus for creating a dynamic GeoFence area by determining an instant reference point using a first set of pseudorange measurements received by a GeoFence device, defining the dynamic GeoFence area referenced to the instant reference point, determining a position fix using a second set of pseudorange measurements, and comparing the position fix to the dynamic GeoFence area. In one aspect, an alert message based on the comparison results is presented to a user.
47 Citations
45 Claims
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1. A method for creating a dynamic geo-fence area comprising:
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determining an instant reference point using a first set of pseudorange measurements received by a geo-fence device; defining the dynamic geo-fence area referenced to the instant reference point; determining a position fix using a second set of pseudorange measurements, wherein the second set of pseudorange measurements is obtained by a tracked device separate from the geo-fence device; and comparing the position fix to the dynamic geo-fence area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for creating a dynamic geo-fence area comprising:
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determining an instant reference point using a first set of pseudorange measurements received by a geo-fence device; defining the dynamic geo-fence area referenced to the instant reference point; determining a position fix using a second set of pseudorange measurements, wherein the second set of pseudorange measurements is obtained by a tracked device separate from the geo-fence device; comparing the position fix to the dynamic geo-fence area; updating the position fix after a first wait time; updating the instant reference point after a second wait time and redefining the dynamic geo-fence area based the updated instant reference point; and comparing the updated position fix to the redefined dynamic geo-fence area. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A method for monitoring dynamic geo-fence areas comprising:
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defining n quantity of dynamic geo-fence areas for n quantity of tracked devices; monitoring the n quantity of dynamic geo-fence areas to determine overlap between the n quantity of dynamic geo-fence areas; and presenting an alert message if at least one of the n quantity of dynamic geo-fence areas does overlap with at least one other of the n quantity of dynamic geo-fence area.
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26. The method of 25 wherein the defining n quantity of dynamic geo-fence areas is performed by a position tracking and management entity.
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27. The method of 26 wherein the monitoring the n quantity of dynamic geo-fence areas is performed by the position tracking and management entity.
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28. A geo-fence device comprising:
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a hardware unit for receiving a first set of pseudorange measurements; a processing unit for determining an instant reference point based on the first set of pseudorange measurements, wherein the processing unit further defines a dynamic geo-fence area based on the instant reference point; and an interface unit for receiving a position fix, wherein the position fix is obtained by a tracked device separate from the geo-fence device, wherein the processing unit compares the position fix to the dynamic geo-fence area. - View Dependent Claims (29, 30, 31, 32)
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33. A computer-readable medium including program code stored thereon comprising:
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program code to determine an instant reference point using a first set of pseudorange measurements received by a geo-fence device; program code to define the dynamic geo-fence area referenced to the instant reference point; program code to determine a position fix using a second set of pseudorange measurements, wherein the second set of pseudorange measurements is obtained by a tracked device separate from the geo-fence device; and program code to compare the position fix to the dynamic geo-fence area. - View Dependent Claims (34, 35, 36, 37, 38)
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39. An apparatus, comprising:
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means for determining an instant reference point using a first set of pseudorange measurements received by a geo-fence device; means for defining the dynamic geo-fence area referenced to the instant reference point; means for determining a position fix using a second set of pseudorange measurements, wherein the second set of pseudorange measurements is obtained by a tracked device separate from the geo-fence device; and means for comparing the position fix to the dynamic geo-fence area. - View Dependent Claims (40)
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41. An apparatus, comprising:
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means for defining n quantity of dynamic geo-fence areas for n quantity of tracked devices; means for monitoring the n quantity of dynamic geo-fence areas to determine overlap between the n quantity of dynamic geo-fence areas; and means for presenting an alert message if at least one of the n quantity of dynamic geo-fence areas does overlap with at least one other of the n quantity of dynamic geo-fence area.
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42. A method for monitoring dynamic geo-fence areas comprising:
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defining n quantity of dynamic geo-fence areas for n quantity of tracked devices; monitoring the n quantity of dynamic geo-fence areas to determine overlap between the n quantity of dynamic geo-fence areas; and presenting an alert message if at least one of the n quantity of dynamic geo-fence areas does not overlap with at least one other of the n quantity of dynamic geo-fence area.
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43. The method of 42 wherein the defining n quantity of dynamic geo-fence areas is performed by a position tracking and management entity.
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44. The method of 43 wherein the monitoring the n quantity of dynamic geo-fence areas is performed by the position tracking and management entity.
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45. An apparatus, comprising:
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means for defining n quantity of dynamic geo-fence areas for n quantity of tracked devices; means for monitoring the n quantity of dynamic geo-fence areas to determine overlap between the n quantity of dynamic geo-fence areas; and means for presenting an alert message if at least one of the n quantity of dynamic geo-fence areas does not overlap with at least one other of the n quantity of dynamic geo-fence area.
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Specification