THREE-DIMENSIONAL MONITORING IN THE AREA OF A LIFT BY MEANS OF A THREE-DIMENSIONAL SENSOR

摘要

The invention relates to a device for monitoring a lift area by means of a 3 D semiconductor sensor (79) for acquiring three-dimensional image information. Said semiconductor sensor (79) comprises a light source which is mounted in such a way that the lift area to be monitored is located in the region illuminated by the light source, a sensor group which is mounted in such a w ay that it receives reflected light, and a processing chip for converting the electrical signals into image information. Said device is also provided with a processing unit (80) which is connected to the semiconductor sensor (79) in order to supply three-dimensional image information. Said processing unit (8 0) processes the image information in order to obtain state information which represents the state of the lift area to be monitored.