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    • 1. 发明申请
    • METHOD AND DEVICE FOR DETECTING AN OBJECT WITH BACKGROUND SUPPRESSION
    • 用于用背景抑制来检测物体的方法和装置
    • WO2012110837A1
    • 2012-08-23
    • PCT/IB2011000281
    • 2011-02-15
    • DATALOGIC IP TECH SRLFABBRI ALBERTOFAETANI SARALAZZARIN DAVIDENALDI DANILO
    • FABBRI ALBERTOFAETANI SARALAZZARIN DAVIDENALDI DANILO
    • G01S17/02
    • G01V8/10G01S7/493G01S7/497G01S17/026G01S17/48
    • A background suppression device comprising emitting means (13) emitting a light beam (14) emitted in a set direction and optoelectronic. receiving means of a light beam (16) reflected by an object (18) providing a first (21) and a second (22) signal. The device further comprises processing means which, in the detecting condition of the device (1), receives the first (21a) and second (22a) signal and provides an output information signal, in function of the first (21a) and said second (22a) signal, indicating the presence or the absence of the object (18) within an interval of set distances. The processing means stores, in a calibrating condition of the device (1), the first (21b) and second (22b) signal and provides the output information signal in function of the first (21a) and/or of the second (22a) signal in the detecting condition and of the first (21b) and/or second (22b) signal in the calibrating condition. In the calibrating condition the object is absent and accordingly the first (21b) and second (22b) signal in the calibrating condition store the background (20).
    • 一种背景抑制装置,包括发射装置(13),其发射沿设定方向发射的光束(14)和光电子。 由物体(18)反射的提供第一(21)和第二(22)信号的光束(16)的接收装置。 该装置还包括处理装置,其在装置(1)的检测状态下接收第一(21a)和第二(22a)信号,并提供输出信息信号,根据第一(21a)和第二(22a) 22a)信号,指示在设定距离的间隔内存在或不存在对象(18)。 处理装置在装置(1)的校准状态下存储第一(21b)和第二(22b)信号,并且提供第一(21a)和/或第二(22a)信号的功能的输出信息信号, 在第一(21b)和/或第二(22b)信号处于校准条件下的信号。 在校准条件下,物体不存在,因此在校准条件下的第一(21b)和第二(22b)信号存储背景(20)。