How to detect malfunctions of laser scanners, laser scanners and automobiles

摘要

The present invention provides a laser scanner 2 for a motor vehicle 1 in which the laser beam 12 of the laser scanner 2 is transmitted through the protective screen 6 of the laser scanner 2 to the surrounding area 4 of the motor vehicle 1. ), wherein the echo 16 of the transmitted laser beam 12 reflected at least partially in the protective screen 6 is transmitted by the receiving unit 9 of the laser scanner 2. A malfunction in the laser scanner 2 is detected when the intensity value 19 is received and the intensity value 19 is different from the reference intensity value.