METHOD AND APPARATUS FOR CALCULATING A DEVICE LOCATION
First Claim
1. A method for determining a location floor of a device within a building, the method comprising:
- determining a likelihood of the device being located on each of a plurality of floors of the building using a likelihood calculation; and
identifying the location floor of the plurality of floors as a floor having an associated highest likelihood calculation,wherein the likelihood calculation for a floor includes calculating a distance from the device to each of a plurality of reference routers including one or more virtual coplanar reference routers, wherein each of the one or more virtual coplanar reference routers comprise a projection of a non-coplanar reference router onto the floor.
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Accused Products
Abstract
A method and apparatus for calculating a location of a device is provided. A likelihood of the device being located at a particular location point or a particular location floor is determined using a likelihood calculation at each of a plurality of locations. The location point or location floor is then identified as that location having an associated highest likelihood calculation. The likelihood calculation includes calculating a distance from the device to each of a plurality of reference routers including one or more virtual coplanar reference routers, wherein each of the one or more virtual coplanar reference routers comprise a projection of a non-coplanar reference router onto the floor.
21 Citations
18 Claims
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1. A method for determining a location floor of a device within a building, the method comprising:
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determining a likelihood of the device being located on each of a plurality of floors of the building using a likelihood calculation; and identifying the location floor of the plurality of floors as a floor having an associated highest likelihood calculation, wherein the likelihood calculation for a floor includes calculating a distance from the device to each of a plurality of reference routers including one or more virtual coplanar reference routers, wherein each of the one or more virtual coplanar reference routers comprise a projection of a non-coplanar reference router onto the floor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for determining a location point of a device within a floor of a building, the method comprising:
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determining a likelihood of the device being located at each of a plurality of locations on the floor using a likelihood calculation; and identifying the location point of the plurality of locations as the location having an associated highest likelihood calculation, wherein the likelihood calculation for a location includes calculating a distance from the device to each of a plurality of reference routers including one or more virtual coplanar reference routers, wherein each of the one or more virtual coplanar reference routers comprise a projection of a non-coplanar reference router onto the floor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for determining a location of a mobile device within a building, the system comprising:
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a plurality of reference routers communicating within a wireless network and communicatively coupled to the mobile device; and an incident command console communicatively coupled to the wireless network, the incident command console including; a memory for storing position information associated with each of the plurality of reference routers, and a processor for calculating the location of the mobile device by; determining a likelihood of the device being located on each of a plurality of floors of the building using a likelihood calculation; and identifying the location floor of the plurality of floors as a floor having an associated highest likelihood calculation, wherein the likelihood calculation for a floor includes calculating a distance from the device to each of a plurality of reference routers including one or more virtual coplanar reference routers, wherein each of the one or more virtual coplanar reference routers comprise a projection of a non-coplanar reference router onto the floor. - View Dependent Claims (18)
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Specification