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：US20220113413A1

公开(公告)日：2022-04-14

申请号：US17498396

申请日：2021-10-11

Applicant: SICK AG

Inventor： Ulrich ZWÖLFER ,  Michael ALBERT ,  Stephan KOLB

IPC: G01S17/10 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/487

Abstract: An optoelectronic sensor for measuring a distance using a light time of flight method, comprising a light transmitter for transmitting a light signal, a light receiver having a plurality of light receiving elements for detecting received light, a plurality of light time of flight measuring units for determining respective individual light times of flight, a memory for collecting individual light times of flight, and a control and evaluation unit configured to determine a distance value by evaluating the collected individual light times of flight, wherein a readdressing unit is configured to write individual light times of flight to specific addresses of a same uniform memory depending on the assignment of a light time of flight measuring unit to a group, so that the control and evaluation unit can assign the stored individual light times of flight via the address to a group and thus to a distance value.