System and method for performing rotational and translational testing for a reference image used in a normalized gray scale pattern find system
    51.
    发明申请
    System and method for performing rotational and translational testing for a reference image used in a normalized gray scale pattern find system 有权
    用于对归一化灰度图案查找系统中使用的参考图像执行旋转和平移测试的系统和方法

    公开(公告)号:US20040131280A1

    公开(公告)日:2004-07-08

    申请号:US10337518

    申请日:2003-01-06

    CPC classification number: G06K9/3208

    Abstract: A system, method, and corresponding computer data product, generates a high resolution reference image, generates a set of rotated reference images from the high resolution reference image, cross-correlates the set of rotated reference images with the high resolution reference image to generate a set of cross-correlation values, and determines that the high resolution reference image is suitable for use in a normalized gray scale pattern find process when the difference between any two correlation values generated by the image cross correlation module is greater than a predetermined threshold value.

    Abstract translation: 系统,方法和相应的计算机数据产品产生高分辨率参考图像,从高分辨率参考图像生成一组旋转的参考图像,将旋转的参考图像集合与高分辨率参考图像交叉相关,以产生 并且当由图像互相关模块产生的任何两个相关值之间的差大于预定阈值时,确定高分辨率参考图像适合于在归一化灰度图案查找处理中使用。

    FIELD-SELECTABLE DYNAMIC GAIN CONTROL MODES OF OPTICAL SENSORS

    公开(公告)号:US20240385299A1

    公开(公告)日:2024-11-21

    申请号:US18692628

    申请日:2022-09-16

    Inventor: Ashley Wise

    Abstract: Apparatus and associated methods relate to a field selectable gain mode system. In an illustrative example, an APD-based sensor may, for example, have two or more predetermined gain modes. The gain modes may, for example, be activated in response to a selection signal(s) generated by a user. For example, the APD-based sensor may apply the user-selected gain mode by independently controlling a circuit gain, an emitter gain, and an APD gain. When the user selection signal is selected, for example, a controller may apply corresponding independent gain parameters to the circuit gain, the emitter gain, and the APD gain, such that a collective high dynamic range sensor system is provided. For example, the independent gain parameters may include a range of control voltages, a range of control current, and/or a range of gain input. Various embodiments may advantageously achieve increased accuracy across an extended operating range of gain values.

    Distance sensing and visual indicator arrays with reconfigurable detection windows

    公开(公告)号:US12135369B2

    公开(公告)日:2024-11-05

    申请号:US17153691

    申请日:2021-01-20

    Abstract: Apparatus and associated methods relate to an array of individually readable distance sensors disposed along a first axis on a platform and configurable to detect penetration of a first plane containing the first axis, and an array of individually controllable light emitting indicators disposed on the platform along at least a second axis and configurable to emit visual indicia to a user out of the first plane. The visual indicia may, for example, be associated with the detected penetration. A reconfigurable predetermined detection window may, for example, be generated by associating adjacent sensors detecting input during a teaching operation. The detection window may, for example, be further generated by determining at least one distance threshold profile as a function of input received from the adjacent sensors during the teaching operation. Various embodiments may advantageously enable efficient configuration of generic sensing and indication units.

    FREQUENCY DOMAIN OPPOSED-MODE PHOTOELECTRIC SENSOR

    公开(公告)号:US20240061144A1

    公开(公告)日:2024-02-22

    申请号:US18501384

    申请日:2023-11-03

    CPC classification number: G01V8/12 G08C23/04

    Abstract: Apparatus and associated methods relate to pairing a receiver with an emitter based on a presence of an amplitude of a spectral profile at at least one predetermined frequency. In an illustrative example, a receiver may receive, from the emitter, an emitted optical signal modulated by the at least one predetermined frequency. A receiver may, for example, generate a digital signal corresponding to the optical signal received. A controller may, for example, generate the spectral profile from the digital signal. The controller may, for example, apply a predetermined threshold to the spectral profile. The controller may, for example, generate an output signal based on the presence of the amplitude of the spectral profile above the first predetermined threshold at the at least one predetermined frequency. Various embodiments may advantageously discriminate a corresponding emitter to establish an optical source-to-detector-link, for example, in the presence of other emitters and/or optically noisy environments.

    Image-based jam detection
    57.
    发明授权

    公开(公告)号:US11854216B2

    公开(公告)日:2023-12-26

    申请号:US18047958

    申请日:2022-10-19

    Abstract: Apparatus and associated methods relate to a method of non-contact motion detection. A one-dimensional optical sensor detects motion of a target or objects on a conveyor belt through a continuous measurement of targets or objects and a real-time comparison of the pixel images captured by the one-dimensional optical sensor. In an illustrative embodiment, a one-dimensional sensor may be configured to determine motion of objects based on changes to the captured intensities of pixel images over time. The sensor may continually capture photoelectric pixel images and compare a current pixel image with a previous pixel image to determine a frame differential image value. The frame differential image value is evaluated against a predetermined threshold over a predetermined time period. Based on the evaluation, a signal is output indicating whether the objects on the conveyor belt are moving or jammed.

    Selectable-Signal Three-Dimensional Fill Monitoring Sensor

    公开(公告)号:US20230258811A1

    公开(公告)日:2023-08-17

    申请号:US18168902

    申请日:2023-02-14

    Abstract: Apparatus and associated methods relate to a volumetric measurement system using three dimensional (3D) ToF cameras. In an illustrative example, a VMS may include at least one 3D distance sensor unit for monitoring a volume of objects in a region of interest (ROI). The VMS may, for example, include a set of user-defined parameters including the ROI, and temporal distribution of measurement attributes associated with the ROI. In some implementations, the VMS may be activated to automatically generate a set of error compensated volumetrics. For example, the VMS may apply a 3D profile, generated based on signals received from the 3D distance sensor, to an error compensation model. Based on measurement attributes generated from applying the error compensation model, the VMS may, for example, generate a set of error compensated volumetrics. Various embodiments may advantageously compensate for errors including occlusion of objects from the 3D distance sensor.

    Methods to generate a wiring schema

    公开(公告)号:US11704451B2

    公开(公告)日:2023-07-18

    申请号:US17583720

    申请日:2022-01-25

    CPC classification number: G06F30/13 G06F30/12 G06F30/39 G06F30/333

    Abstract: Apparatus and associated methods relate to generating a wiring schema with more than one safety device sharing at least one test signal through one or more external terminal blocks when the number of terminals required by safety devices exceeds the number of available terminals of a safety controller. In an illustrative example, the method may include determining a total number of terminals A of safety devices to be connected to a safety evaluation device having a number of terminals B. If A is greater than B, the method may then include generating a wiring schema that one or more external terminal blocks may show indicia of electrical connections between an identified set of safety devices and a shared terminal of the safety evaluation device associated with that set. Various embodiments may advantageously expand a number of devices to be connected to the safety evaluation device.

    Near Range Radar
    60.
    发明申请

    公开(公告)号:US20230123458A1

    公开(公告)日:2023-04-20

    申请号:US17036255

    申请日:2020-09-29

    Abstract: Apparatus and associated methods relate to enabling a radar system to use different sensing mechanisms to estimate a distance from a target based on different detection zones (e.g., far-field and near-field). In an illustrative example, a curve fitting method may be applied for near-field sensing, and a Fourier transform may be used for far-field sensing. A predetermined set of rules may be applied to select when to use the near-field sensing mechanism and when to use the far-field mechanism. The frequency of a target signal within a beat signal that has less than two sinusoidal cycles may be estimated with improved accuracy. Accordingly, the distance of a target that is within a predetermined distance range (e.g., two meters range for 24 GHz ISM band limitation) may be reliably estimated.

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