Sick Ag

Robert Boschgmbh

Sascha Steinkogler

Bernhard Mattes

Hartmut Schumacher

Anton Dukart

Reinhold Fiess

Ralf Maier

Florian Schneider

Alfred Kuttenberger

Frank Mack

Ulrich Kallmann

Roland Gehring

Gottfried Hug

Matthias Marcus Wellhoefer

Pascal Kocher

Rolf-Juergen Recknagel

Martin Marra

Klaus Clemens

Dirk Strohmeier

Stefan Seitz

Helmut Weber

Bernd Roos

Thomas Russ

Martin Högy

Manuel Wacker

Ralf Walther

Jan Tilp

Konrad Winterer

Andreas Breu

Carsten Ehrler

Tim Weyer

Ulrike Groeger

Daniel Hahn

Mirco Steiert

An optoelectronic sensor for detecting objects in a monitored zone is provided, wherein the sensor has a scanning unit that is movable about an axis of rotation and that has a plurality of scanning modules accommodated therein for a periodic scanning of the monitored zone and for a generation of corresponding received signals and that has a control and evaluation unit for acquiring information on the objects from the received signals; and wherein the scanning modules each comprise a light transmitter for transmitting a light beam and a light receiver for generating a respective received signal from the light beam remitted by the objects. A respective mirror element is here associated with the scanning modules to set an angle of elevation of a respective scanning plane detected by a scanning module with respect to a central scanning plane perpendicular to the axis of rotation.

Optoelectronic sensor and method of detecting objects in a monitoring zone

A polygon scanner () for detecting objects () in a monitored zone () is provided having a light transmitter (); having a light receiver (); having an evaluation unit (); and having a rotatable mirror unit () for a periodic deflection of the light beam () that has a plurality of mirror facets () in order thus to scan an angular section multiple times per rotation of the mirror unit () by a respective mirror facet (), wherein at least some of the mirror facets () have a different curvature from one another. In this respect, at least one of the mirror facets () is configured as a free-form surface whose curvature is adapted to the angle of incidence of the transmitted light beam () on the mirror facet () that varies during the rotation of the mirror unit ().

Polygon scanner and method of detecting objects in a monitored zone

A light receiver () is provided having a plurality of avalanche photodiode elements () that can each be biased above a breakdown voltage by a bias voltage and can thus be operated in a Geiger mode, wherein the avalanche photodiode elements () form a plurality of groups, and having a control unit () to change the sensitivity of the avalanche photodiode elements () of a respective group. In this respect, the control unit () is configured to respectively change the sensitivity of the avalanche photodiode elements () of a group at at least one point in time assigned to the group, with different points in time being assigned to the groups.

Detecting light using a plurality of avalanche photodiode elements

An optoelectronic sensor () for the detection of object information from a monitored zone () is provided, wherein the sensor () comprises a light transmitter () having an associated transmission optics () for the beam formation of a transmitted light beam () and for a limitation of its beam cross-section to a predefined diameter in a depth of field range; a light receiver () for the generation of a received signal from the reflected light beam (); and a control and evaluation unit () for extracting object information from the received signal. In this connection, the transmission optics () has at least two optical part regions (-) having different beam-forming properties and the optical part region (-) which acts in a beam-forming manner with respect to the transmitted light beam () can be set in order to vary the depth of field range.

Optoelectronic sensor and method for the detection of object information

A method and an apparatus for detecting a pedestrian impact, at least three acceleration sensors being provided which are respectively mounted on the inner side of the bumper cladding and each generate a signal. The pedestrian impact is detected as a function of a time offset between at least two of the three signals. The impact location is identified on the basis of the at least one time offset.

Apparatus and method for detecting a pedestrian impact

A device for recording a geometry of an environment of a device in a detection field with the aid of laser scanning may include a laser beam controlled by an oscillating micromechanical mirror. The detection field is specifiable in the vertical and horizontal directions by adapting an amplitude of oscillation of the micromechanical mirror. Driver-assistance systems are used for tasks both in the near field, such as a parking function, and in the distant field of the vehicle, such as a distance control or the detection of obstacles on the roadway. If the amplitude of the oscillation of the micro-mirror is then reduced in the horizontal direction and/or vertical direction, the spatial resolution for the reduced detection range is improved. Moreover, the higher intensity of the laser radiation impinging on the smaller detection region improves the signal-to-noise ratio of the detected signal.

Adaptive angle and power adaptation in 3D-micro-mirror LIDAR

Growing community of inventors

Waldkirch, Germany

Sascha Steinkogler