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    • 4. 发明申请
    • SENSORS, SYSTEMS AND METHODS FOR OPTICAL POSITION SENSING
    • 光学位置传感器的传感器,系统和方法
    • WO2010031187A1
    • 2010-03-25
    • PCT/CA2009/001326
    • 2009-09-21
    • NYTRIC LTD.UTUKURI, AvanindraCLARKE, Jonathan
    • UTUKURI, AvanindraCLARKE, Jonathan
    • G01S5/00G01S3/00G01S3/783G01S5/16
    • G01J1/4257G01S3/782G01S3/784G01S5/16
    • Various systems and methods for estimating the position of a radiation source in three-dimensional space, together with sensors for use in such systems are described. In some embodiments, the systems include a plurality of radiation sensors. The three-dimensional position of the radiation source is estimated relative to each sensor using an aperture that casts shadows on a radiation detector as a function of the incident angle of the incoming radiation. In some embodiments, the ratio of a reference radiation intensity to a measured radiation intensity is used to estimate direction of the radiation source relative to the sensor. When the angular position of the radiation source is estimated relative to two sensors, the position of the radiation source in three dimensions can be triangulated based on the known relative positions of the two sensors.
    • 描述用于在三维空间中估计辐射源的位置的各种系统和方法以及用于这种系统中的传感器。 在一些实施例中,系统包括多个辐射传感器。 辐射源的三维位置相对于每个传感器使用在辐射检测器上投射阴影作为入射辐射的入射角的函数的孔来估计。 在一些实施例中,使用参考辐射强度与测量的辐射强度的比率来估计辐射源相对于传感器的方向。 当相对于两个传感器估计辐射源的角位置时,可以基于两个传感器的已知相对位置对三维辐射源的位置进行三角测量。