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    Drehwinkelsensorsystem
    44.
    发明公开
    Drehwinkelsensorsystem 有权
    旋转角传感器系统

    公开(公告)号：EP2950057A1

    公开(公告)日：2015-12-02

    申请号：EP14193626.0

    申请日：2014-11-18

    申请人： Espros Photonics AG

    发明人： De Coi, Beat

    IPC分类号： G01D5/347 ,  G01D5/36 ,  H04N1/00 ,  G01P3/38

    CPC分类号： G06T7/0004 ,  G01D5/3473 ,  G01D5/36 ,  G01P3/38 ,  G06T2207/30164

    摘要： Drehwinkelsensorsystem zur Erfassung der Drehwinkelstellung und/oder der Winkelgeschwindigkeit einer Drehwelle die sich entlang einer Drehachse erstreckt, mit mindestens zwei optischen Markierungen an der Drehwelle, mit einem optischen Sensor mit einer Pixelmatrix mit Pixelpunkten, mit einer Abbildungseinrichtung zur Abbildung jeder Markierung in im wesentlichen axialer Richtung auf der Pixelmatrix als ein Markierungsbild, und mit einer Auswerteeinrichtung zur Auslese und Auswertung der Pixelmatrix um Daten zur Drehwinkelstellung und/oder Winkelgeschwindigkeit zu bestimmen, wobei die Markierungen, die Abbildungseinrichtung und Pixelpunkte so ausgebildet sind, dass die Markierungsbilder auf der Pixelmatrix mindestens die Fläche eines Pixelpunktes aufweisen, wobei die Auswerteeinrichtung dazu ausgebildet ist, die Lage der Schwerpunkte der Markierungsbilder auf der Pixelmatrix zu ermitteln. Insbesondere können die Schwerpunkte der Markierungsbilder auf der Pixelmatrix in Sub-Matrixeinteilung ermittelt werden.

    摘要翻译： 用于检测的角度位置和/或沿着旋转轴线延伸的旋转轴的角速度，具有在旋转轴上的至少两个光学标记，其包括具有与像素点的像素阵列的光学传感器，用一个映射旋转角传感器系统装置，用于在基本上轴向方向上映射每个标记 来确定像素阵列作为标记图像上，并具有用于所述像素矩阵中的数据的选择和评价的评价装置的旋转角度位置和/或角速度，其中，所述标记，成像装置和像素点被形成为使得至少在象素阵列上的标记图像的一个表面 有像素点，其中，所述评估装置被设计为确定该像素阵列上的标记图像的焦点的位置。 特别地，像素阵列为子矩阵的分类上的标记图像的焦点可以被确定。

    Motion sensor assembly for determining the angular velocity of a moving contrast in its field of view with high accuracy
    45.
    发明授权
    Motion sensor assembly for determining the angular velocity of a moving contrast in its field of view with high accuracy 有权
    在视场的高度准确的确定的移动相反的角速度的运动传感器布置

    公开(公告)号：EP2725362B1

    公开(公告)日：2015-01-07

    申请号：EP12306341.4

    申请日：2012-10-26

    申请人： Aix-Marseille Université ,  Centre National de la Recherche Scientifique (CNRS)

    发明人： Ruffier, Franck ,  Expert, Fabien

    IPC分类号： G01P3/38 ,  G01P3/68 ,  G01S11/12 ,  G05D1/02 ,  G06T7/20

    CPC分类号： G01P3/38 ,  G01P3/68 ,  G01S11/12

    摘要： A motion sensor assembly adapted to determine the angular velocity of a moving contrast in its field of view, said motion sensor assembly comprising: - at least one motion sensor with a first and a second analog photoreceptor each adapted for observing said moving contrast, wherein said first and second photoreceptor are separated by a predetermined interreceptor angle (”Õ); and - an angular velocity calculating unit connected to said photoreceptors for calculating the angular velocity of the moving contrast based on the first and second analog signal (AS1, AS2) delivered by said first and second photoreceptor respectively; wherein said angular velocity calculating unit comprises a means for temporally sampling the first and second analog signal (AS1, AS2) delivered by said first and second photoreceptor at a given sampling frequency (f sample ) to obtain a first and second digital signal (DS1, DS2) respectively. Said angular velocity calculating unit further comprises a means for performing an interpolation of said first and second digital signal (DS1, DS2) when they cross a predetermined threshold (S) between successive samples (C).

    VERFAHREN UND SYSTEM ZUR ERMITTLUNG EINER FAHRZEUGGESCHWINDIGKEIT
    46.
    发明公开
    VERFAHREN UND SYSTEM ZUR ERMITTLUNG EINER FAHRZEUGGESCHWINDIGKEIT 有权
    VERFAHREN UND系统ZUR ERMITTLUNG EINER FAHRZEUGGESCHWINDIGKEIT

    公开(公告)号：EP2338062A1

    公开(公告)日：2011-06-29

    申请号：EP08875179.7

    申请日：2008-10-15

    申请人： Siemens AG Österreich

    发明人： RIEGER, Nikolai ,  ASPERGER, Karl

    IPC分类号： G01P3/38 ,  G01S11/12 ,  G08G1/052 ,  G08G1/054 ,  G06T3/40

    CPC分类号： G01P3/38 ,  G01S7/40 ,  G01S11/12 ,  G01S13/583 ,  G08G1/052

    摘要： The invention relates to a method for determining the speeds of vehicles (2) passing a detection unit (1), wherein the speed of the passing vehicles is measured by a measuring device (3), and in the event that the reading of the speed of a vehicle exceeds a specified maximum speed an imaging and processing device is prompted to take a first picture and with some time delay (ΔT) a second picture of said vehicle using a digital image sensor, so as to calculate a calculated value from said two images, and wherein in the determination of the speed of the detection unit the reading and the calculated value are taken into consideration, wherein the time delay (ΔT) is specified as a function of the reading of the speed. In order to speed up the signal processing operation, only part of the image information, such as only every second, third, or fourth line, is used for determining the speed.

    摘要翻译： 本发明涉及一种用于确定通过检测单元（1）的车辆（2）的速度的方法，其中通过测量装置（3）测量通过的车辆的速度，并且在读取速度 车辆超过规定的最大速度时，使用数字图像传感器提示成像处理装置拍摄第一图像并且利用数字图像传感器以一定时间延迟（ΔT））所述车辆的第二图像，从而计算来自所述 两个图像，并且其中在确定检测单元的速度时考虑读数和计算值，其中时间延迟（ΔT）被指定为速度读数的函数。 为了加速信号处理操作，仅使用一部分图像信息，例如仅第二，第三或第四行，用于确定速度。

    ELECTRO-OPTICAL METHOD AND SYSTEM FOR DETERMINING THE DIRECTION OF MOTION IN DOUBLE-EXPOSURE VELOCIMETRY BY SHIFTING AN OPTICAL IMAGE FIELD
    50.
    发明公开
    ELECTRO-OPTICAL METHOD AND SYSTEM FOR DETERMINING THE DIRECTION OF MOTION IN DOUBLE-EXPOSURE VELOCIMETRY BY SHIFTING AN OPTICAL IMAGE FIELD 失效
    用于通过移动光学图像来确定双重曝光视差运动方向的电光学方法和系统

    公开(公告)号：EP0485383A4

    公开(公告)日：1992-08-12

    申请号：EP90905027

    申请日：1990-03-10

    申请人： UNIV ILLINOIS

    发明人： ADRIAN, RONALD, J. ,  LANDRETH, CHRISTOPHER, C. 402 SOUTH RACE STREET

    IPC分类号： G01P13/00 ,  G01P3/38 ,  G01P5/00 ,  G01P5/26 ,  G01P13/02 ,  G01P13/04 ,  G01P3/36

    CPC分类号： G01P3/38 ,  G01P5/001 ,  G01P5/26 ,  G01P13/045

    摘要： The present invention is an improvement on a system for double-pulsed particle velocimetry in which small scattering particles (20) are illuminated by two short pulses of laser light and then images are recorded photographically (18) to produce a record from which the particle velocity can be determined by measuring the displacement of the particle images. The known system involves a method and apparatus for resolving the ambiguity which exists with respect to the direction of displacement of particle images so recorded by multiple exposures on film or videographic media. The directional ambiguity is resolved by means of shifting the image field between exposures by an amount (XS) that is greater than any negative displacement occuring in the image field. In this way, all recorded displacement are positive, and negative displacements are obtained from the measurements. The present improvement incorporates an electro-optical device (34) that performs the desired image shifting function, without mechanical motion, in place of the shifting produced by rotating mirrors and the like.