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公开(公告)号：US06943338B2
公开(公告)日：2005-09-13
申请号：US10163266
申请日：2002-06-04
CPC分类号： G01V8/12
摘要： The invention relates to an optoelectronic sensor, in particular a reflection light scanner, at least comprising a transmitter for transmitting transmitted light, a receiver for outputting at least two received signals in dependence on reflected and received transmitted light, and an evaluation device by which, for determining whether an object or no object is disposed in a detection zone of the sensor, a difference of the received signals is comparable with a threshold and a positive or negative article detection signal can be produced in dependence on the result of this comparison, with a plurality of different thresholds being provided to produce a switching hysteresis. The evaluation device is made such that the result of a comparison of a sum of the received signals with a threshold value is provided as an additional criterion for the production of the article detection signal. The invention further relates to a corresponding method.
摘要翻译： 本发明涉及至少包括用于发射透射光的发射机的光电传感器，特别是反射光扫描器，用于根据反射和接收的透射光输出至少两个接收信号的接收机，以及评估装置， 为了确定物体是否设置在传感器的检测区域中，接收信号的差异与阈值相当，并且可以根据该比较的结果产生正或负物品检测信号，与 提供多个不同的阈值以产生开关滞后。 评估装置被做成使得将接收到的信号的和的总和与阈值进行比较的结果作为用于生成物品检测信号的附加标准。 本发明还涉及相应的方法。
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公开(公告)号：US06781705B2
公开(公告)日：2004-08-24
申请号：US09997417
申请日：2001-11-29
IPC分类号： G01B1114
CPC分类号： G01S17/48 , G01B11/026 , G01C3/06 , G01S7/4814 , G01S7/4912 , G01S17/87
摘要： The invention relates to a method for the determination of the object distance between an opto-electronic sensor working according to the principle of triangulation and an object, wherein the sensor has at least one measuring channel between a transmission unit for the emission of electromagnetic sensing rays into the measuring region and a reception unit for the detection of sensing rays reflected and/or remitted from the measuring region; wherein the sensor has at least one additional channel which has a further transmission unit and/or a further reception unit in addition to the transmission unit and the reception unit; and wherein the received signals of the measuring channel and of the additional channel are jointly evaluated for the determination of the object distance. The invention further relates to an apparatus for the carrying out of this method.
摘要翻译： 本发明涉及一种用于确定根据三角测量原理工作的光电传感器与物体之间的物距的方法，其中传感器在用于发射电磁感测射线的传输单元之间具有至少一个测量通道 测量区域的接收单元和用于检测从测量区域反射和/或从测量区域传出的感测射线的接收单元;其中传感器具有至少一个附加通道，该通道还具有另外的传输单元和/或另外的接收单元， 发送单元和接收单元; 并且其中测量信道和附加信道的接收信号被共同评估用于确定对象距离。本发明还涉及一种用于执行该方法的装置。
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公开(公告)号：US07012539B2
公开(公告)日：2006-03-14
申请号：US10211957
申请日：2002-08-02
IPC分类号： G08B21/00
CPC分类号： G01S17/026 , G01S17/48 , G01V8/20
摘要： An optoelectronic sensor and a method for producing a positive or a negative object detection signal in dependence on the presence or non-presence of an object in a foreground region or in a background region of a region monitored by the sensor. Transmitted light is transmitted in the direction of the monitored region during an operating phase. A plurality of received signals are produced in dependence on the reflected and the received transmitted light which are associated with the foreground region or with the background region. A difference of the received signals is compared with a differential threshold to produce the positive or the negative object detection signal, wherein a switching hysteresis is formed for a change between the positive and the negative object detection signal. The association of the received signals with the foreground region and the background region is changed in dependence on a change in the object detection signal to form the switching hysteresis.
摘要翻译： 一种光电传感器和用于根据传感器监视的区域的前景区域或背景区域中的对象的存在或不存在来产生正或负对象检测信号的方法。 在操作阶段，透射光在监视区域的方向上传输。 根据与前景区域或背景区域相关联的反射光和接收的透射光产生多个接收信号。 将接收信号的差与差分阈值进行比较以产生正或负对象检测信号，其中形成用于正对象检测信号之间的变化的开关滞后。 接收信号与前景区域和背景区域的关联根据对象检测信号的变化而变化，形成切换滞后。
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