Patent ID: 6784832
Filing Date: 2004-08-31
Classification: G01C,G08G

Abstract:
A method for tracking a vehicle comprising:storing data characterizing a series of maneuvers to be carried out by the vehicle, said series of maneuvers including a first maneuver to be carried out by the vehicle at a first location; determining when the vehicle is at the first location, including detecting when the vehicle performs the first maneuver using the stored data characterizing the series of maneuvers; computing first position data using a reference signal at the vehicle from a positioning system at the time at which the vehicle was determined to be at the first location; computing position correction data using the first position data and coordinates of the first location; computing second position data using a reference signal received at the vehicle from the positioning system at a second time subsequent to the time at which that the vehicle was determined to be at the first location; and determining coordinates of the vehicle at the second time including combining at the vehicle the correction data and the second position data.