SISTEMA DE VIGILANCIA POR VIDEO MEDIANTE SENSOR SEMICONDUTOR DE IMAGENS A TRES DIMENSOES E FONTE LUMINOSA DE RADIACAO INFRAVERMELHA

摘要

The apparatus has a sensor (39) that detects three-dimensional image information and processing equipment that evaluates the image information to recognize a deviation between images and to trigger a situation-adapted reaction. The sensor has a light source in a region of an elevator door, which is partly monitored in a detection range illuminated by the source. The equipment categorizes door state based on deviation. An Independent claim is also included for a method of monitoring a state of an elevator door.