公开(公告)号：US11047960B2

公开(公告)日：2021-06-29

申请号：US15483290

申请日：2017-04-10

Applicant: SICK AG

Inventor： Simon Franzreb ,  Fabian Jachmann

IPC: G01S7/48 ,  G01S7/4861 ,  G01S17/42 ,  G01S17/26 ,  G01S7/481 ,  G01S7/4865 ,  G01S17/10

Abstract: A distance-measuring optoelectronic sensor (10) uses two sampling memories for detection of objects in a monitoring zone (20). The sensor (10) has a light transmitter (12) for transmitting a transmission light pulse (16) into the monitoring area (20), a light receiver (26) for generating a reception signal from the light pulse (22) remitted by objects in the monitoring area (20), a control and evaluation unit (32) configured to determine a reception point in time from the reception signal and the distance of the object by means of a light time of flight method, and a first and second sampling memory (34a, 34b) having a plurality of memory cells each for storing a section of the reception signal. Partially overlapping recording regions are used, with each alternately recording a reception signal for a longer duration than a time interval between two successive transmission light pulses (16).

公开(公告)号：US09383201B2

公开(公告)日：2016-07-05

申请号：US14308984

申请日：2014-06-19

Applicant: SICK AG

Inventor： Fabian Jachman ,  Simon Franzreb

IPC: G01C3/08 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G01S7/486

CPC classification number: G01C3/08 ,  G01S7/486 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89

Abstract: An optoelectronic sensor (10) for distance determination comprises a transmitter (12) for transmitting a light beam (14) having a plurality of consecutive individual light pulses, a rotatable deflection unit (16) for deflecting the light beam (14), an angle measuring unit (28) for determining an angular position of the deflection unit (16), a light receiver (24) for generating reception pulses from remitted transmission light, a plurality of histogram memories (34) each associated with an angular position, and an evaluation unit (30) which is configured to accumulate time histograms in the histogram memories (34) across several periods of the rotational movement of the deflection unit (16) from reception pulses which are each detected at the angular position associated with the respective histogram memory (34), and to determine, from the histograms of the associated histogram memory (34), an object distance for an angular position.

Abstract translation: 用于距离确定的光电传感器（10）包括用于传输具有多个连续独立光脉冲的光束（14）的发射器（12），用于偏转光束（14）的可旋转偏转单元（16） 用于确定偏转单元（16）的角位置的测量单元（28），用于从传送光产生接收脉冲的光接收器（24），与角位置相关联的多个直方图存储器（34），以及 评估单元（30），被配置为在偏转单元（16）的旋转运动的几个周期内在直方图存储器（34）中累积时间直方图与接收脉冲，每个接收脉冲在与相应的直方图存储器相关联的角位置处被检测 （34），并且从相关联的直方图存储器（34）的直方图中确定角位置的对象距离。