APPARATUS AND METHOD FOR MONITORING A ZONE OF A ROOM, PARTICULARLY FOR SECURING A HAZARD AREA OF AN AUTOMATICALLY OPERATING SYSTEM

摘要

Disclosed is an apparatus for monitoring a zone of a room, especially for securing a hazard area of an automatically operating system. Said apparatus comprises a lighting device which at least temporarily emits light signals into the zone of the room. A first image recording unit (22) is used for recording a first image of the zone of the room, said image recording unit (22) being equipped with an image sensor (26) with a plurality of pixels. An evaluation unit is configured so as to determine, by measuring the propagation time, a distance value (d_M) for at least one point (34) that is located in the zone of the room and is reproduced onto at least one pixel. A test unit is configured so as to compare at least one first and a second image in order to recognize an incorrect distance value (d_M).