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Satellite aided location tracking with user interface

  • US 8,058,987 B1
  • Filed: 04/27/2007
  • Issued: 11/15/2011
  • Est. Priority Date: 05/04/2006
  • Status: Active Grant
First Claim
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1. A location tracking method using a graphical user interface, comprising:

  • receiving, in a first user interface, first user input that enables definition of a perimeter associated with a destination location;

    receiving, in a second user interface, second user input that specifies an arrival alert, said arrival alert being activated when it is determined that a movable asset achieves a stopped condition inside said perimeter;

    receiving, via a communication satellite, a no-motion position report from said movable asset, said no-motion position report being transmitted by said movable asset when it is determined that said movable asset has achieved said stopped condition, wherein said stopped condition results from a determination that, after tracking multiple transitions between a moving state and a non-moving state in a tracking period, said movable asset remained in said non-moving state for greater than a defined percentage of said tracking period, wherein said tracking period begins at a detection of a first of said multiple transitions and ends after a period of time defined by a tracking period length parameter stored in said movable asset;

    determining, based on a receipt of said no-motion position report, whether said stopped condition occurs inside said perimeter; and

    sending a notification message to a user when it is determined that said stopped condition occurs inside said perimeter.

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