Patent ID: 7705750

Claim:
A system for use in stations for road tolls, comprising: a first optical apparatus for recording images of a roadway, a second apparatus for wireless communication with each of one or more vehicle apparatuses, wherein a height above the roadway and an angle in the lateral and a vertical direction in relation to the roadway are known for the first optical apparatus, wherein the second apparatus can determine a position for each of the one or more vehicle apparatuses in at least two directions through its communication with the vehicle apparatuses, means for being able to detect one or more number plates from an image taken using the first optical apparatus, means for calculating a position for each of the detected number plates in three directions, means for being able to determine any associations between the detected number plates and the one or more vehicle apparatuses by comparison between the position of each of the detected number plates and the position of each of the one or more vehicle apparatuses.