Sick Ag

Gerold Feise

Jörg Sigmund

Stephan Schmitz

Christian Hulm

Matthias Jägel

Michael Albert

Boris Szerbakowski

Gregor Huber

Martin Kufner

Kirsten Gosch

Helmut Themel

Hannes Klinke

A laser scanner () detects and determines distances of objects comprises a light transmitter transmitting light in a plurality of consecutive individual pulses. A rotatable deflection unit () for the periodical deflection of the transmission light beam () into the monitoring zone () and an angular measurement unit () generates angular position signals () in dependence on an angular position of the deflection unit (). An evaluation unit () identifies a received pulse associated with an object from a histogram () taken from a histogram memory () to determine the distance of the object by means of a light propagation method. The histogram () is collected over a time interval which is associated with the angular position signal (). In this connection at least two histogram memories () are provided in order to collect a first histogram and a second histogram in overlapping time intervals.

Optoelectronic sensor and method for the detection and determination of distances of objects

An optoelectronic sensor for the detection and distance determination of objects in a monitoring area is provided having a light transmitter for transmitting a plurality of light pulses, a rotatable deflecting unit, an angle detector, a light receiver, and an evaluation unit which is configured to collect a plurality of reception pulses in a time histogram to determine the light time of flight from the sensor to an object. The evaluation unit is configured to select a respective group of reception pulses that is collected in a histogram based on the angular position signal and to assign the measured value for the object distance determined from the histogram of the group to a detection angle identified by the angular position signal.

Optoelectronic sensor and method for the detection and distance determination of objects

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Hamburg, Germany

Gerold Feise