• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A device is described for determining the bulk volume of a threshed crop (5) with a weigh bin (1) receiving the threshed crop (5) and a weighing device (1) connected to the weighing device of the weigh bin (1). In order to provide advantageous construction conditions, it is proposed that the weighing container (1) has a measuring device (4) connected to the evaluation device for detecting the surface of the harvested crop (5) on the basis of a light-section triangulation with light line projectors (7) arranged alongside each other along at least one container wall (6). and a digital image capture device (9) associated with said light line projectors (7)
    公开号:AT513251A4
    申请号:T501862013
    申请日:2013-03-18
    公开日:2014-03-15
    发明作者:
    申请人:Wintersteiger Ag；
    IPC主号:
    专利说明:

    1
    (39093) II
    The invention relates to a device for determining the crop bulk weight of a threshed crop with a crop container receiving the threshed crop, arranged on a combine harvester, and having an evaluation device connected to the weighing device of the weigh bin.
    In order not only to determine the harvest weight of a threshed crop, but also to refer to the bulk volume, it is known (US 5,487,702 A, US 2006/0013279 A1) to completely fill a measuring container with a predetermined receiving volume with the threshed crop and to determine the weight of this crop in terms of its bulk volume. The supernatant of the crop of arranged above a weighing container, provided with an openable bottom measuring container can be stripped (US 2006/0013279 A1) or separated by a slide from the measuring container (US 5,487,702 A), so when you open the soil, the crop can be detected with a given bulk volume on the weighing device of the weighing container, to then determine in an evaluation the reference to the bulk volume harvest weight. A disadvantage of these known devices for determining the bulk weight of a crop weight is associated with the effort associated with a separate measuring container, because not only the related to a debris volume Erntegewischt, but also the entire harvest weight is to be detected.
    The invention is therefore based on the object, a device for determining the bulk volume related crop weight of a threshed crop 2/9 2 guts of the kind described in such a way that a separate weighing of a predetermined bulk volume portion of the crop can be omitted.
    Based on a device of the type described above, the invention solves this problem by the fact that the weighing container connected to the evaluation device measuring device for detecting the surface of the recorded crop on the basis of a light section triangulation along at least one container wall juxtaposed light line projectors and a these light line projectors having associated digital image capture device.
    Due to the known geometrical dimensions of the weighing container, the bulk volume of the bed can be determined independently of the amount of threshed crop introduced into the weighing container via the evaluation device and the crop weight measured by the weighing device can be related by measuring the surface profile of the harvested product introduced into the weighing container be set to the bulk volume. For non-contact detection of the surface of the Erntegutschüttung a measuring device based on a light-section triangulation can be used with advantage, at least along a container wall juxtaposed light line projectors are provided, which are recorded on the bulk material surface light lines via a digital image capture device, with the help of the deviation the light lines from a baseline and thus a profile section of the bed can be detected.
    Although the arrangement of the digital imaging device of the measuring device for detecting the surface of the Erntegutschüttung with respect to the series of light line projectors could be largely freely chosen taking into account a corresponding Triangulationswinkels, it should be considered that the weighing container from above with the threshed crop, preferably from a cache , needs to be filled. In order to allow a low height without affecting the filling opening of the weighing container with simple structural means, the digital image capture device can be arranged in the region of a container wall extending transversely to the container wall with the light line projectors.
    The measuring accuracy of the measuring device depends above all on the exact assignment and mutual alignment of the digital image capture device and the light line projectors. In order to avoid expensive calibration measures, the weighing container may have at least one parallel to the row of light line projectors reference line, which allows detection of the spatial assignment and mutual alignment of the image capture device and the Liehtlinienprojekto-ren on the digital image capture device and thus taking into account any deviations. Due to the known arrangement of the light line projectors, the light sections with the reference line known in their geometric course allow a conclusion to the respective alignment of the individual light line projectors and thus to the course of the light section planes determined by the individual light line projectors, in particular if two of these reference lines be provided at a distance from each other. This means that when the weighing container is empty, a calibration of the measuring device can not be carried out via a mechanical adjustment of the individual components for the light-section triangulation, but with the aid of a corresponding program based on pixels captured by the digital image-recording device.
    In the drawing, the subject invention is shown, for example. Show it
    Fig. 1 shows a device according to the invention in a plan view of the weighing container and
    2 this weighing container in section along the line II-II of FIG .. 1
    The illustrated device for determining the bulk weight of a harvested crop of a threshed crop has one in particular on a 4/9
    Plot combine harvester weighable weighing container 1, which is designed to be filled with threshed crop upwards open and in the illustrated embodiment has two operable via a respective swing cylinder 2 discharge flaps 3, but this is by no means mandatory. This weighing container 1 is supported by a weighing device relative to a frame, with the aid of the weighing container 1 can be mounted on the plot combine harvester. The weighing device with the frame is not shown for reasons of clarity, especially as weighing containers 1 are known per se for threshed crop.
    In contrast to the prior art, the weighing container 1 is provided with a measuring device 4 for detecting the surface of each of the weighing container 1 received crop 5. This measuring device 4 constructed on the basis of a light-slit triangulation has along a container wall 6 in the upper edge region a row of light line projectors 7, preferably laser light projectors, projecting the light beams into light crop planes 8 parallel to each other on the Erntegutschüttung and thus a Lichtschnittraster on the surface of the crop 5 form. This light section grid is detected by a digital image capture device 9, which is provided in the middle region of one of the two transverse to the container wall 6 with the light line projectors 7 extending container walls 10. In general, one will manage with a digital image capture device 9. However, it is of course also possible to provide a further digital image capture device 9 on the opposite container wall.
    As can be seen from FIG. 2, a very shallow angle of incidence results for the light beams of the light line projectors 7 on the side of a pronounced bulk cone of the crop 5 opposite this projector. To improve these lighting conditions, light line projectors may also be provided on the container wall 6 opposite the container wall, whose rows are offset from the row of the light line projectors 7 on the longitudinal wall 6 to gap. 5/9 5
    With the aid of the measuring device 4, the surface of the crop 5 introduced into the weighing container 1 can be detected without contact with sufficient accuracy in order to be able to determine the bulk volume of the crop 5 received by the weighing container 1 in an evaluation device. The geometry and dimensions of the weighing container 1 are known, so that their volume can be determined with the detected surface profile of the crop bed.
    For calibrating the measuring device 4, the weighing container 1 at least one reference line 11 which is parallel to the row of light line projectors 7 and is provided for example in the form of a reference bar or a reference strip on the inside of the container wall 6 with the light line projectors 7 opposite container wall. The light sections of the reference lines 11 with the light section planes 8 can be recorded with the empty weighing container 1 via the digital image capture device 9 to determine the course of the light section planes 8 in the known geometrical relationship between the digital image capture device 9 and the individual light line projectors 7, by providing of at least two reference lines 11, the course of the individual light section planes 8 can be clearly determined in order to account for any deviations in the measurement of the surface profile program-related. 6.9
    权利要求:
    Claims (3)
    [1]
    Patent Attorneys Dipl.-Ing. Helmut Hübscher Dipl.-Ing. 1. Device for determining the bulk weight of a harvested crop crop (5) with a threshing crop (5) receiving, arranged on a harvester weighing container (1) and with an evaluation device connected to the weighing device of the weighing container (1), characterized in that the weighing container (1) has a measuring device (4) connected to the evaluation device for detecting the surface of the picked crop (5) on the basis of a light-section triangulation along at least one container wall (6) juxtaposed light line projectors (7) and one of these light line projectors (7) associated digital image capture device (9).
    [2]
    2. Apparatus according to claim 1, characterized in that the digital image capture device (9) in the region of a transverse to the container wall (6) with the light line projectors (7) extending container wall (10) is arranged.
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that the weighing container (1) has at least one reference line (11) parallel to the row of the light line projectors (7). Linz, 18 March 2013 Wintersteiger AG by: / Dl Helmut Hübscher / (electronically signed) 7/9
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    同族专利:
    公开号 | 公开日
    AT513251B1|2014-03-15|
    WO2014146152A1|2014-09-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4339441A1|1993-11-19|1995-05-24|Incatronic Phoenix Mestechnik|Container filling level measuring system|EP3167251A4|2014-07-07|2018-05-30|Xpertsea Solutions Inc.|Method of determining a value of a variable of interest of a sample having organisms and system therefore|US20060013279A1|2004-07-14|2006-01-19|Perten Instruments Inc.|Grain moisture meter|
    DE102005018141A1|2005-04-20|2006-11-02|Deere & Company, Moline|Grain tank with a rangefinder to detect the level|PL3448144T3|2016-04-26|2020-08-24|Agco Corporation|A combine harvester having a grain bin|
    US10701861B2|2018-07-19|2020-07-07|Cnh Industrial America Llc|Modular sensor array for bulk material detection|
    法律状态:
    2018-11-15| MM01| Lapse because of not paying annual fees|Effective date: 20180318 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT501862013A|AT513251B1|2013-03-18|2013-03-18|Device for determining the crop weight of a threshed crop|AT501862013A| AT513251B1|2013-03-18|2013-03-18|Device for determining the crop weight of a threshed crop|
    PCT/AT2014/050037| WO2014146152A1|2013-03-18|2014-02-11|Device for determining the harvest weight of a threshed harvested crop in relation to a bulk volume|
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