Device for use with a portable inertial navigation system ("PINS") and methods for transitioning between location technologies
First Claim
1. A method for transitioning between location technologies comprising the steps of:
- establishing a valid position of a device using a first location technology, wherein the first location technology uses a plurality of radio frequency (“
RF”
) signals;
tracking a location of the device using the first location technology;
monitoring at least one metric of the plurality of RF signals;
identifying that the at least one metric of at least one RF signal in the plurality of RF signals has fallen below a predetermined threshold required for acceptable location tracking accuracy;
in response to the step of identifying, establishing a next valid position of the device using a second location technology; and
tracking the location of the device using the second location technology.
1 Assignment
0 Petitions
Accused Products
Abstract
A valid position of a device (102) is established using a first location technology (108). The first location technology (108) uses a plurality of radio frequency (“RF”) signals. A location of the device (102) is tracked using the first location technology (102). At least one metric of the plurality of RF signals is monitored. At least one metric of at least one RF signal in the plurality of RF signals is identified to have fallen below a predetermined threshold required for acceptable location tracking accuracy. As a result, a next valid position of the device (102) is established using a second location technology (100), and the location of the device (102) is tracked using the second location technology (100).
11 Citations
20 Claims
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1. A method for transitioning between location technologies comprising the steps of:
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establishing a valid position of a device using a first location technology, wherein the first location technology uses a plurality of radio frequency (“
RF”
) signals;
tracking a location of the device using the first location technology;
monitoring at least one metric of the plurality of RF signals;
identifying that the at least one metric of at least one RF signal in the plurality of RF signals has fallen below a predetermined threshold required for acceptable location tracking accuracy;
in response to the step of identifying, establishing a next valid position of the device using a second location technology; and
tracking the location of the device using the second location technology. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A first device for transitioning between location technologies, which when operable, performs the following tasks:
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establishing a valid position of a second device using a first location technology, wherein the first location technology uses a plurality of radio frequency (“
RF”
) signals;
tracking a location of the second device using the first location technology;
monitoring at least one metric of the plurality of RF signals;
identifying that the at least one metric of at least one RF signal in the plurality of RF signals has fallen below a predetermined threshold required for acceptable location tracking accuracy;
in response to the step of identifying, establishing a next valid position of the second device using a second location technology; and
tracking the location of the second device using the second location technology. - View Dependent Claims (16, 17)
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18. A device for transitioning between location technologies, which when operable, performs the following tasks:
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establishing a valid position of the device using a first location technology, wherein the first location technology uses a plurality of radio frequency (“
RF”
) signals;
tracking a location of the device using the first location technology;
monitoring at least one metric of the plurality of RF signals;
identifying that the at least one metric of at least one RF signal in the plurality of RF signals has fallen below a predetermined threshold required for acceptable location tracking accuracy;
in response to the step of identifying, establishing a next valid position of the device using a second location technology; and
tracking the location of the device using the second location technology. - View Dependent Claims (19, 20)
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Specification