Patent ID: 6952180
Filing Date: 2005-10-04
Classification: G01C,G01S

Abstract:
1. A method for determination of positions of a moving object, said method comprising the step of: determining a current distance (Dx) of the object from a previous position (Px−1) which has been stored as a waypoint (Wx−1); determining a current deviation (Ax) between a current traveling direction and a previous traveling direction which is evaluated on the basis of at least one previous waypoint; comparing the current distance (Dx) and the current deviation (Ax) with at least one set of parameters (X, Y, Z) which define criteria for storing a position as a new waypoint; determining and storing the current position (Px) as a new waypoint (Wx) if the criteria are fulfilled; and repeating the above steps and storing a predetermined number of last waypoints (Wx, Wx−1, Wx−2, . . . ) for indicating position and/or traveling direction of the object.