Sick Ag

Sick | Stegmann Gmbh

Ulrich Zwölfer

Kai Waslowski

Stefan Kienzler

Martin Köhl

Christophe Thil

Heinrich Hippenmeyer

Pascal Schüler

Reinhold Mutschler

Stephan Schmitz

Carl Joseph Hafner

Johannes Eble

Jürgen Reichenbach

Martin Wüstefeld

Dietram Rinklin

Lars Müller

Christian Klingelhöfer

Michael Albert

Felix Dreher

Thomas Blümcke

Hannes Schleinkofer

Dr Matthias Neubauer

An optoelectronic sensor is provided for measuring the distance from an object in a monitored zone that has a light transmitter for transmitting light signals into the monitored zone; a light receiver having at least one avalanche photodiode operated in Geiger mode for receiving the light signals reflected or remitted by the object; an individual time of flight measurement unit for determining an individual time of flight of a light signal from the sensor to the object; and an evaluation unit that is configured to generate a common measured value for the distance from a plurality of individual times of flight.

Optoelectronic sensor and method of measuring the distance from an object

An optoelectronic sensor is provided for measuring the distance from an object in a monitored zone that has a light transmitter for transmitting individual light signals into the monitored zone; a light receiver having at least one avalanche photodiode operated in Geiger mode for receiving the individual light pulses reflected or remitted by the object; an individual time of flight measurement unit for determining an individual time of flight of an individual light pulse as a duration between a transmitted point in time of the respective individual light pulse and its received point in time at the avalanche photodiode; and an evaluation unit that is configured to determine a common measured value for the distance from a plurality of individual times of flight and to estimate how many individual times of flight are to be expected in a time interval on the basis of background events.

An optoelectronic sensor for measuring a distance comprises a light transmitter () for transmitting a sequence of individual light pulses () and a light receiver () for receiving the individual light pulses (). An individual time of flight measuring unit () determines a sequence of individual times of flight of the individual light pulses () as the duration between a transmission point in time and its reception point in time. An evaluation unit () accumulates individual times of flight and determines a common measurement value for the distance from the accumulated individual times of flight. The evaluation unit () comprises a filter () for accumulating an individual time of flight only if it coincides, within a time window, with a preceding individual time of flight.

Optoelectronic sensor and method for measuring a distance

The invention relates to a method of detecting an object in which pulses of transmitted light are repeatedly transmitted into a transmission zone by means of a light source; reception light received from the detection zone is detected by means of a detection apparatus which has a plurality of detectors; and an evaluation zone is defined which comprises a plurality of detectors and within which reception light is incident onto the detectors. The method is characterized in that a plurality of part regions are fixed within the evaluation zone; the part regions are at least partly successively evaluated while using a plurality of consecutive pulses of transmitted light; and the evaluations of the part regions are combined to determine the presence of an object in the detection zone.

Method of detecting an object

A camera system () is provided for generating an image presegmented into regions (-) of interest and of no interest, having an evaluation unit () which is designed to divide the raw image into part regions (-) to calculate a contrast value for each part region (-) and to decide with reference to the contrast value whether the respective part region (-) is a region of interest () or a region of no interest (). In this respect, the evaluation unit () has a preprocessing unit () which is implemented on an FPGA, which respectively accesses the pixels of a part region (-) and generates summed values (a), b) for the respective part region (-) and has a structure recognition unit () which calculates the contrast value of the part region (-) from its summed values (a, b) without accessing pixels of the part region (-).

Generating an image presegmented into regions of interest and regions of no interest

The invention relates to an optoelectronic sensor element () having at least one reception element () in front of which a polarizing structure () is arranged which is manufactured from an electrically conductive material, with the polarizing structure () having a contact connection () for the application of a defined tension and with the polarizing structure () being configured as a screen of the sensor element ().

Optoelectronic sensor element

The invention relates to a method for the correction of the brightness of a raw image generated by a sensor matrix, in which an intensity matching is carried out at picture elements defined by a line coordinate and a column coordinate and at least one intensity value. The intensity matching comprises the application to the intensity values of the picture elements to be corrected of two intensity corrections independent of one another, in dependence on the line coordinate, on the one hand, and in dependence on the column coordinate, on the other hand. The invention furthermore relates to an optoelectronic sensor comprising a correction device. This correction device is matched to carry out the initially described intensity matching.

Method and device for the correction of the brightness of a raw image generated by a sensor matrix

This invention concerns an optoelectronic sensor assembly () with at least one light emitter () and at least one light receiver () comprising a spatially resolving receiving element (), with the receiving element () having an inner region () comprising at least one photosensitive element () for detecting the light beam () and an outer region () comprising at least one photosensitive element () for determining the position of the light beam () emitted by the light emitter (), with the outer region () satisfying lower sensitivity and/or bandwidth requirements than the inner region ().

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Waldkirch, Germany

Ulrich Zwölfer