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    • 9. 发明公开
    • AGRICULTURAL TRENCH DEPTH SENSING SYSTEMS, METHODS, AND APPARATUS
    • EP4241547A2
    • 2023-09-13
    • EP23176323.6
    • 2017-07-24
    • Precision Planting LLC
    • KOCH, DaleSWANSON, ToddVACCARI, AdamTRAVIS, DexterHARMAN, ReidSTRNAD, MichaelHODEL, Jeremy
    • A01C5/06G01B17/00A01C7/20
    • An agricultural trench depth sensing system has a trench implement (100) for placement in a soil trench. A first ground engaging finger (1210) disposed on the implement is adapted to engage a first sidewall surface of the trench. A second ground engaging finger (1220) disposed on the implement is adapted to engage a second sidewall surface of the trench. A sensor (1270) on or in the implement generates a signal based on a position of at least one of the first finger and the second finger relative to the implement. In an embodiment (FIGs. 12A to 12C), the first finger and the second finger are not connected to the trench implement via an arm, and the sensor generates a first signal based on a position of the first finger, and generates a second signal based on a position of the optional second finger. In another embodiment, the first and second fingers are connected together via an arm (1260) that is connected to the implement; and one of:
      A. the sensor measuring a height of the first finger and wherein the second finger is above the trench implement, and wherein the first finger and the second finger are connected to the arm through an angular displacement sensor (1270) to facilitate rotation about an axis parallel to the implement by the first and second fingers;
      B. the first and said second fingers are connected via a pivot to the arm to facilitate rotation about an axis parallel to the implement; and
      C. the arm is flexible and connected to a fixed attachment that is connected to the implement, and the sensor measuring a distance of the arm from the implement.