Monitoring of an area using an optoelectronic sensor, whereby illuminating light is transmitted with two different patterns to improve detection of homogenous objects and to improve system functionality testing

摘要

Method for monitoring a monitoring region (49) using an optoelectronic sensor (33), whereby light with a structured pattern, i.e. areas of light and dark, is transmitted towards the monitoring region and reflected back to a receiver where it is converted into an electrical output signal. Light is transmitted in at least two different illumination patterns. The invention also relates to a corresponding optoelectronic sensor.