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    • 11. 发明授权
    • Load proximity detection techniques
    • 负载接近检测技术
    • US4299496A
    • 1981-11-10
    • US958042
    • 1978-11-06
    • John J. Lord
    • John J. Lord
    • B65G1/00B65G1/04B65G1/06B65G43/00G01S17/08
    • B65G1/0414
    • A storage rack entry vehicle for transporting loads in a warehousing system includes infrared radiation source and detector units which determine the relative position of the vehicle and load. The optical axes of the source and detector are parallel and closely-spaced. When infrared radiation from the source is scattered by the load (or a pallet carrying the load), some of the radiation is reflected back to the detector along a path substantially parallel to the optical axes. The maximum range of detection is controlled by adjusting the gain of an amplifier which forms part of the detector.
    • 用于在仓库系统中传送负载的存储架进入车辆包括确定车辆和负载的相对位置的红外辐射源和检测器单元。 源和检测器的光轴平行和紧密间隔。 当来自源的红外辐射由负载(或承载负载的托盘)散射时,一些辐射沿着基本上平行于光轴的路径反射回检测器。 通过调整构成检测器一部分的放大器的增益来控制最大检测范围。