Patent ID: 6259979
Filing Date: 2001-07-10
Classification: B66F,G01S,G05D

Abstract:
A method for association of anonymous reflectors (R.sub.1 -R.sub.11) to detected angle positions, wherebya) the anonymous reflectors are arranged in positions in a transport area,b) positions of the reflectors (R.sub.1 -R.sub.11) are stored in memory,c) a beam (B) is emitted from a vehicle (10) over a search sector,d) reflected signals from reflecting objects are received on board the vehicle (10),e) an angle position towards reflecting objects in relation to a reference direction (D) of the vehicle (10) is detected over the search sector and corresponding angle values are determined,f) at least one angle value determined over the search sector is stored,characterized bycontinuously measuring a distance between a reflector (R.sub.1 -R.sub.11) and a reference point on the vehicle (10) to obtain a distance value,determining a relation between the distance value and corresponding distance between a stored reflector positions and a position assumed for the vehicle, andallowing the association if the relation is within an expected interval.