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    Object counting apparatus and method
    1.
    发明公开
    Object counting apparatus and method 失效
    Gerätund Verfahren zumZählenvonGegenständen。

    公开(公告)号：EP0339949A1

    公开(公告)日：1989-11-02

    申请号：EP89304130.1

    申请日：1989-04-26

    申请人： QUANTITY & TIME MANAGEMENT SYSTEMS LIMITED

    发明人： Sparling, David Leslie ,  Gardner, Andrew David

    IPC分类号： G06M7/10 ,  G06M1/10

    CPC分类号： G06M1/101 ,  G06M7/10 ,  G06M2207/02

    摘要： An apparatus and a method for counting objects, such as printed copy being advanced along a path in an overlapping manner, is arranged to direct two beams of infra-red radiation on to a predetermined region in the path of advancement of the copy. The two beams are distinguishable one from the other and are directed from positions respectively upstream and downstream of said region. Two detectors (24,25) are disposed above said region, to receive radiation respectively from two distinct areas, both within said region but spaced in the direction of the path of advancement of the objects. Suitable processing of the detector outputs, to determine the gradients of the said areas, allows the generation of a count signal as the leading edge of an object passes through said region.

    摘要翻译： 用于计数物体的装置和方法，例如以重叠方式沿着路径前进的印刷品，被布置成将两束红外线辐射引导到副本的前进路径中的预定区域上。 两个光束彼此可区分，并且分别从所述区域的上游和下游的位置引导。 两个检测器（24,25）设置在所述区域上方，以分别从所述区域内的两个不同区域接收辐射，但是在物体的前进方向的方向上间隔开。 检测器输出的适当处理以确定所述区域的梯度，允许当物体的前缘通过所述区域时产生计数信号。