公开(公告)号：US20230266446A1

公开(公告)日：2023-08-24

申请号：US18111239

申请日：2023-02-17

Applicant: SICK AG

Inventor： Alexander BOHLI ,  Stephan KOLB ,  Klaus CLEMENS ,  Axel JAHN

IPC: G01S7/4865 ,  G01S7/4861 ,  G01S17/10

CPC classification number: G01S7/4865 ,  G01S7/4861 ,  G01S17/10

Abstract: An optoelectronic sensor for detecting and determining the distance of an object in a monitored area is specified with a light emitter having a light source for emitting light pulses, a light receiver for generating a received signal from a light pulse remitted by the object and with a control and evaluation unit, which is designed to control the light emitter and to determine a time-of-flight of the light and, from this, a distance of the object to the sensor. The control and evaluation unit has a time measurement unit which is set up to receive the received signal and a trigger signal and to determine the time-of-flight of the light from a time interval between the trigger signal and the received signal. The sensor further has a trigger circuit that is set up to tap a voltage applied to the light source of the light emitter and to output the trigger signal when an amount of the tapped voltage exceeds a predetermined threshold value.

公开(公告)号：US20180210084A1

公开(公告)日：2018-07-26

申请号：US15876466

申请日：2018-01-22

Applicant: SICK AG

Inventor： Ulrich ZWÖLFER ,  Alexander BOHLI ,  Michael ALBERT

IPC: G01S17/10 ,  G01S7/486

CPC classification number: G01S17/10 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4817 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/105 ,  G01S17/89

Abstract: An optoelectronic sensor for determining the distance of an object having a light transmitter for transmitting a light pulse; having a SPAD light receiver with a measurement reception element and a reference reception element; and having an evaluation unit that is configured to determine a time of flight between the transmission of the light pulse and the reception of the remitted light pulse and from this the distance of the object from the received signals of the measurement reception element and of the reference reception element. The invention further relates to a method of determining an object in a monitored zone.

公开(公告)号：US20140333939A1

公开(公告)日：2014-11-13

申请号：US14270737

申请日：2014-05-06

Applicant: SICK AG

Inventor： Gerhard MERETTIG ,  Roland BERGBACH ,  Matthias SCHONSTEIN ,  Ingolf HORSCH ,  Matthias GOTZ ,  Alexander BOHLI

IPC: G01D5/26

CPC classification number: G01D5/26 ,  G01B11/028

Abstract: An optoelectronic sensor for recognizing object edges of objects comprises at least three light transmitters which are arranged such that at least two different spacings result between two respective light transmitters. For recognizing an object edge, an evaluation unit is configured to carry out a common evaluation of an image taken by a light receiver of a light spot generated by the transmitted light beams of a first light transmitter and of an image taken by a light receiver of a light spot generated by the transmitted light beams of another light transmitter. The pair of light transmitters to be used for the common evaluation can be selected in dependence on a selection criterion from at least two differently spaced apart pairs of light transmitters.

Abstract translation: 用于识别物体的物体边缘的光电传感器包括至少三个光发射器，其布置成使得在两个相应的光发射器之间产生至少两个不同的间隔。 为了识别物体边缘，评估单元被配置为对由第一光发射器的透射光束产生的光点的光接收器拍摄的图像和由光接收器拍摄的图像进行共同评估 由另一个光发射器的透射光束产生的光点。 可以根据来自至少两个不同间隔的光发射器对的选择标准来选择用于公共评估的一对光发射器。