Patent ID: 6452684
Filing Date: 2002-09-17
Classification: B60G,E01C

Abstract:
Device for determining a desired contour of a ground surface relative to the actual contour of that ground surface, at least comprising measuring means for generating along a determined distance from a ground surface actual values for the height and position of a number of points of that ground surface relative to a determined reference point, characterized in that the measuring means comprisea laser light source which can be placed at a measuring point above the ground surface and which is adapted to generate a laser beam moving over said determined distance from the ground surface, sensor means for detecting the laser beam reflected by the ground surface to the measuring point, time-measuring means for determining the transit time of said laser beam between the laser light source and the sensor means, and processing means for generating from signals from the laser light source, the sensor means and the time-measuring means of actual values for the height and the position of a number of points of this ground surface relative to the measuring point, and for calculating from these actual values of values for height and position of a number of points on a desired contour of this ground surface.