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    System and method for creating accurate topographical maps using low-drift DGPS
    1.
    发明授权
    System and method for creating accurate topographical maps using low-drift DGPS 有权
    使用低漂移DGPS创建精确地形图的系统和方法

    公开(公告)号：US07231295B2

    公开(公告)日：2007-06-12

    申请号：US10819743

    申请日：2004-04-07

    申请人： Terence D. Pickett ,  Frederick W. Nelson ,  Larry L. Hendrickson

    发明人： Terence D. Pickett ,  Frederick W. Nelson ,  Larry L. Hendrickson

    IPC分类号： G21C21/32 ,  G08G1/133 ,  G01S5/14

    CPC分类号： G01C15/00

    摘要： The present invention is directed to a method for acquiring elevation data for an area. The method includes using a GPS receiver to map ground elevations while driving back and forth over an area and periodically recording position, elevation, and time. Then, at least one track is made across the parallel tracks so that the cross track intersects the parallel tracks. The data obtained is processed and elevation data from the cross track is used to adjust elevation data for the parallel tracks, compensating for elevation drift in measurements recorded by the GPS receiver. The adjusted data for the entire area is processed using the method of the present invention to obtain an elevation map for the area.

    摘要翻译： 本发明涉及一种用于获取区域的高程数据的方法。 该方法包括使用GPS接收器来在地面上来回移动并周期性地记录位置，高程和时间时映射地面高度。 然后，跨越平行的轨道形成至少一个轨道，使得十字轨道与平行轨道相交。 所获得的数据被处理，并且使用来自交叉轨道的高程数据来调整平行轨道的高程数据，补偿由GPS接收机记录的测量中的高程漂移。 使用本发明的方法处理整个区域的调整数据，以获得该区域的高程图。

    Capacitance-Based Moisture Sensor
    4.
    发明申请
    Capacitance-Based Moisture Sensor 有权
    电容式水分传感器

    公开(公告)号：US20130200905A1

    公开(公告)日：2013-08-08

    申请号：US13365388

    申请日：2012-02-03

    申请人： Michael L. Rhodes ,  Clayton S. Morton ,  James A. Chambers ,  Graeme L. Jarvis ,  Larry L. Hendrickson

    发明人： Michael L. Rhodes ,  Clayton S. Morton ,  James A. Chambers ,  Graeme L. Jarvis ,  Larry L. Hendrickson

    IPC分类号： G01R27/26

    CPC分类号： G01N27/223 ,  G01N33/246

    摘要： A capacitance-based moisture sensor may include a sleeve having an internal cavity, a container filled with soil or other material inserted into the internal cavity, and a pair of ring-shaped conductive bands around the exterior of the sleeve forming a capacitor and providing a frequency output. The rings positioned around a perimeter of the sleeve may be connected to a fixed inductor to form an oscillator with a variable frequency output. The sensor may be calibrated from the frequency output for each of a plurality of substances, measuring the volumetric water content for saturation of the material, and determining at least one fitting constant in an equation wherein volumetric water content is a function of the frequency output and a plurality of fitting constants.

    摘要翻译： 基于电容的湿度传感器可以包括具有内部空腔的套筒，填充有插入到内部空腔中的土壤或其他材料的容器以及围绕套筒外部的一对环形导电带，形成电容器并提供 频率输出。 围绕套筒周边定位的环可以连接到固定电感器以形成具有可变频率输出的振荡器。 传感器可以从多个物质中的每一个的频率输出校准，测量材料的饱和度的体积含水量，以及在等式中确定至少一个拟合常数，其中体积含水量是频率输出的函数， 多个拟合常数。

    Method of determining and treating the health of a crop
    10.
    发明授权
    Method of determining and treating the health of a crop 有权
    确定和处理作物健康的方法

    公开(公告)号：US06529615B2

    公开(公告)日：2003-03-04

    申请号：US09728102

    申请日：2000-12-01

    申请人： Larry L. Hendrickson ,  Shufeng Han ,  Monte A. Dickson

    发明人： Larry L. Hendrickson ,  Shufeng Han ,  Monte A. Dickson

    IPC分类号： G06K900

    CPC分类号： G06T7/0004 ,  G01J3/2803 ,  G01J3/2823 ,  G06K9/0063 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/10036 ,  G06T2207/30188 ,  H04N5/332

    摘要： A process for determining the health of crops in a field and for correcting deficiencies in the health of the crops is disclosed. The process includes georeferencing aerial photographs of at least a portion of the field, the aerial photographs having a particular spatial resolution; determining the green plane in the aerial photographs thus taken; preparing a relative greenness map of the field based upon the nitrogen reference area, the relative greenness map providing crop status information having spatial resolution equivalent to the spatial resolution of the aerial photographs; converting the relative greenness map to a nitrogen recommendation map having spatial resolution equivalent to the spatial resolution of the photographs; and applying nitrogen to the field according to the nitrogen recommendation map, whereby the nitrogen is applied to the field without loss of spatial information. A process for treating crops is also disclosed. The process includes establishing, in a field to be treated, at least one predetermined area of high nitrogen reference; photographing from the air, georeferenced portions of the field, using a particular spatial resolution; differentiating soil and crops, in the photographs thus obtained by segmenting images to select crop pixels; preparing a relative greenness map of the field from green plane based upon the high nitrogen reference area, the relative greenness map providing crop information having spatial resolution equivalent to the particular spatial resolution; and treating the crops in the field in accordance with the relative greenness map.

    摘要翻译： 公开了确定田间作物健康和纠正作物健康不足的过程。 该过程包括场地至少一部分的地理参考航空照片，航空照片具有特定的空间分辨率; 确定如此拍摄的航空照片中的绿色飞机; 基于氮参考区域准备场的相对绿度图，相对绿度图提供具有与空中照片的空间分辨率相当的空间分辨率的作物状态信息; 将相对绿度图转换成具有与照片的空间分辨率相当的空间分辨率的氮推荐图; 并根据氮推荐图将氮施加到场，由此将氮施加到场而不损失空间信息。 还公开了一种处理作物的方法。 该方法包括在待处理的领域中建立至少一个高氮参考的预定区域; 使用特定的空间分辨率从空中拍摄，场地的地理参考部分; 在通过分割图像以选择作物像素而获得的照片中区分土壤和作物; 基于高氮参考区域从绿平面准备场的相对绿度图，相对绿度图提供具有等同于特定空间分辨率的空间分辨率的作物信息; 并根据相对的绿色地图对田间作物进行处理。