Method for locating the position of a vehicle
AssigneeDataspeed Inc.
InventorsPaul Fleck, Micho Radovnikovich, Ka C. Cheok, Steve Grzebyk, Kevin Hallenbeck
Life of this patent
Estimating the term…
Abstract
A method for locating the position of a vehicle having a transceiver. An estimate of the position of the vehicle is first determined by using at least three spaced apart receivers by performing trilateration with the three receivers. Thereafter, two of the receivers which intersect the vehicle at an angle closest to 90 degrees at a solution closest to the estimate of the vehicle position is used to perform implicit triangulation of the vehicle position using only the two receivers. The new position of the vehicle is used to update the estimated vehicle position.
Claims4
A method using a programmed processor for locating the position in a known space of a vehicle having a transceiver and at least three receivers in known locations in said known space, said method comprising the steps of:
- determining if an estimate of the vehicle position is known and, if not, obtaining an estimate by performing trilateration using the at least three receivers,
- identifying two of the at least three receivers which intersect the vehicle at an angle closest to 90 degrees at a solution closest to said estimate of said vehicle position,
- performing implicit triangulation to compute the vehicle position using said two receivers,
- updating said estimate with said computed vehicle position.
Dependencies are inferred from the claim text.