Determining a position of at least one beacon in a location system
AssigneeHewlett-Packard Development Company, L.P.
InventorJohn Recker
Life of this patent
Estimating the term…
Abstract
A position for a beacon in a location system is determined based on distances measured from positions in a local coordinate system for the location system and from intersection points of circles. The circles each have a center point of one of the positions in the local coordinate system and a radius of one of the measured distances.
Claims25
A method for determining a position of at least one beacon in a local coordinate system for a location system, the method comprising:
- measuring a first distance from a first position in the local coordinate system to a first beacon;
- measuring a second distance from a second position in the local coordinate system to the first beacon;
- determining intersection points of a first circle and a second circle in the local coordinate system, wherein the first circle is centered at the first position and has a radius substantially equal to the first distance and the second circle is centered at the second position and has a radius substantially equal to the second distance;
- and
- selecting one of the intersection points as a position of the first beacon in the local coordinate system.
A method comprising:
- assigning a first position in a local coordinate system to a first beacon;
- determining a second position in the local coordinate system for a second beacon using a mobile device to measure at least one distance to the second beacon;
- and
- storing the first position and the second position in a database.
A mobile device comprising:
- at least one receiver operable to receive signals from at least one beacon in a location system;
- software operable to determine distances to the at least one beacon based on the received signals and is further operable to determine a position of the at least one beacon in a local coordinate system for the location system based at least on the determined distances.
An apparatus comprising:
- means for receiving at least one signal from at least one beacon;
- means for determining a position for the at least one beacon in a local coordinate system based on the received at least one signal;
- and
- means for transmitting the position for the at least one beacon to a device for storage.
A computer readable medium on which is embedded one or more computer programs, said one or more computer programs implementing a method for determining a position of at least one beacon in a local coordinate system for a location system, the method comprising:
- determining a first distance from a first position in the local coordinate system to a first beacon;
- determining a second distance from a second position in the local coordinate system to the first beacon;
- determining intersection points of a first circle and a second circle in the local coordinate system, wherein the first circle is centered at the first position and has a radius substantially equal to the first distance and the second circle is centered at the second position and has a radius substantially equal to the second distance;
- and
- storing one of the intersection points as a position of the first beacon in the local coordinate system.
Dependencies are inferred from the claim text.