Method and System for Locating a Wireless Tracking Device
AssigneeNumerex Corp.
InventorsYoganand Rajala, Jeffery O. Smith
Life of this patent
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Abstract
A wireless tracking device can utilize a location detector, such as a GPS receiver or a short-range receiver, to provide locational information for the wireless tracking device. The wireless tracking device can transmit the locational information over a cellular network. Geofences can help manage location of the wireless tracking device. An analysis can be conducted at the wireless tracking device, at a server, or at some other appropriate location to assess integrity of the locational information. A determination as to whether the wireless tracking device is in an area can be based on the locational information and the integrity of the locational information.
Claims20
A method for improving operation of a geofencing system in which locational measurements have error, the method comprising the steps of:
- receiving a signal that conveys information from a wireless tracking device about a location of the wireless tracking device, the information defining a first geographic area in which the wireless tracking device is deemed to be located;
- computing overlap between the first geographic area and a second geographic area;
- computing a ratio between the overlap and the first geographic area;
- and
- determining whether the wireless tracking device is within the second geographic area based on comparing the computed ratio to a threshold.
A system, comprising:
- a wireless tracking device comprising a transmitter that transmits a signal comprising information about a location of the wireless tracking device, the information defining a first geographic area in which the wireless tracking device is deemed to be located;
- and
- a server configured to compute an overlap between the first geographic area and a second geographic area, compute a ratio between the overlap and the first geographic area;
- and determine whether the wireless tracking device is within the second geographic area based on a comparison of the computed ratio to a threshold.
A system comprising:
- a network interface configured to receive a signal that conveys information from a wireless tracking device about a location of the wireless tracking device, the information defining a first geographic area in which the wireless tracking device is deemed to be located;
- memory;
- a processor that is operably coupled to the network interface and to the memory;
- and
- processor executable instructions stored in the memory for performing the steps of:
- computing overlap between the first geographic area and a second geographic area;
- computing a ratio between the overlap and the first geographic area;
- and
- determining whether the wireless tracking device is within the second geographic area based on comparing the computed ratio to a threshold.
Dependencies are inferred from the claim text.