Patent ID: 6614536
Filing Date: 2003-09-02
Classification: G01S,G08G

Abstract:
An arrangement for measuring at least one of a speed and a surface shape of moving objects based on measurements of travel time and intensity of light emitted from a light source and reflected by the moving objects, comprising:at least one light source configured to illuminate moving objects with light pulses; at least two optical semiconductor sensor lines positioned in a region of the at least one light source, the at least two optical semiconductor lines each being comprised of a plurality of sensor elements for sensing light emitted from the at least one light source that is reflected by the moving objects and a moving objects background across which the moving objects travel, the at least two optical semiconductor sensor lines being spaced a predetermined distance relative to one another and disposed parallel to one another, and arranged transverse to a travel direction of the moving objects; and a controller for calculating range profiles of the moving objects based on measured travel time and intensity of light emitted from the at least one light source and reflected by at least one of the moving objects and the moving object background, and for deriving a surface shape of the moving objects based on the calculated range profiles.