WO2021009261A1 - Procédé pour afficher la hauteur de travail d'une tête de récolte d'une récolteuse agricole - Google Patents

Procédé pour afficher la hauteur de travail d'une tête de récolte d'une récolteuse agricole Download PDF

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Publication number
WO2021009261A1
WO2021009261A1 PCT/EP2020/070052 EP2020070052W WO2021009261A1 WO 2021009261 A1 WO2021009261 A1 WO 2021009261A1 EP 2020070052 W EP2020070052 W EP 2020070052W WO 2021009261 A1 WO2021009261 A1 WO 2021009261A1
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WO
WIPO (PCT)
Prior art keywords
computer unit
header
electronic computer
height
harvesting
Prior art date
Application number
PCT/EP2020/070052
Other languages
German (de)
English (en)
Inventor
Rüdiger Steen
Jochen Scharmann
Johannes Hense
Raphael Stückmann
Original Assignee
Carl Geringhoff Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Geringhoff Gmbh & Co. Kg filed Critical Carl Geringhoff Gmbh & Co. Kg
Publication of WO2021009261A1 publication Critical patent/WO2021009261A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/14—Mowing tables
    • A01D41/141—Automatic header control
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
    • A01B63/114—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to achieve a constant working depth

Definitions

  • the present invention relates to a method for height guidance of a header of an agricultural harvesting machine with an electronic computer unit, to which sensor values of a measuring device for measuring the distance of the header from the ground are fed.
  • a generic method is known from DE 44 06 892 A1. With this method, it is possible to operate a harvesting machine in which the working height of the header continuously adapts to the changing surface contour of the field area currently being worked. From the document DE 10 2004 032 065 it is known to include a support wheel in the electronic bottom copy control so that the transverse position of the header is also included in the bottom copy function.
  • the displays of the working height of the harvesting attachments when preselecting the target sizes as well as during operation have so far only shown relative values within the available setting range, but not the ground clearance values as absolute numbers, for example in cm or inches.
  • An electronic control system that continuously adapts the working height of the harvesting attachment to changes in the soil contour in order to keep the harvesting attachment at as constant a distance from the ground as possible during ongoing harvesting work, learns the minimum and maximum deflections as part of a calibration process when the harvesting machine is started Adjusting devices and then shows the current position of the harvest
  • the preselection of a working height is usually based on the driver's eye. From the driver's cab, the driver looks at the header and the ground and sets a working height that he / she considers appropriate to carry out the harvest. From the perspective from above, the driver often sees the image in such a way that he has already set the header to a working height that is sufficiently close to the ground. In addition, the driver must be careful not to set the header higher than it would be desirable for the most dense soil copying for fear of damage from ground collisions. As a result, the working height is often set too high.
  • Many harvesting machines also have electronic controls for the continuous height adjustment of the harvesting attachments.
  • the sensitivity and the reaction speed of the electronic control can be set by the driver. These controls are also set subjectively via the driver's feeling of what level of sensitivity and reaction speed might be appropriate for the current harvesting process.
  • the object is achieved for a generic method in that the sensor values measured by the measuring device and transmitted to the electronic computer unit are recorded by the electronic computer unit as absolute numerical values in a unit of measurement and displayed on a display device.
  • the electronic computer unit can be a simple microchip which only receives the sensor data and forwards it to a data processing device which is part of the electronics of the header or the harvesting machine.
  • a simple chip would have a kind of simple mailbox function in which the further processing of the sensor data into control signals for the working height of the header from other downstream electronic devices on the harvest. header or on the harvesting machine or even remotely from the harvesting machine in a wireless network or the cloud.
  • the electronic processing unit and the other downstream electronic devices can be integrated into a bus network via which the connected computers send, receive, exchange and process various data.
  • the data can be transmitted via electrical cables, optically via fiber optics, by radio or acoustically using ultrasound or other technical means.
  • the electronic computing unit can also be a job computer assigned to the header and mounted there or on the harvesting machine, the sole or at least partial purpose of which is to automatically adjust the working height of the header to changes in the soil contour of the field during harvest.
  • a job computer is then able not only to receive and forward the sensor data, but also to process it.
  • the job computer can then also form a complete electronic control for the height guidance of the header, via which the header can be continuously adapted in its height and, if necessary, transverse position to a changed soil contour.
  • a job computer that receives sensor signals from the sensors and sends them unchanged or processed as control signals to downstream control devices can, however, also be arranged on the harvesting machine as an integral part of the machine electronics of the harvesting machine, which receives the sensor data from the attached header in order to from from there to regulate the working height of the header by actuating adjusting devices permanently installed on the harvesting machine.
  • an electronic computer unit is mentioned below, all of the aforementioned designs are also included.
  • the height control of the header is also meant, which accesses the actuators of the harvesting machine to adjust the height of the header and moves it.
  • the height control can be designed as an upward and downward movement of the header, as a pivoting of the header about the longitudinal axis of the harvester, a combination of these two possibilities or as a corresponding height control of subcomponents of a header.
  • the measured values for the working height recorded and displayed in a unit of measurement enable the driver to set the working height of the header to a certain absolute numerical value and also to check that this value is maintained during the harvesting work of the harvester.
  • the control and ongoing readjustment of the working height in the event of changing distances can be carried out by the driver by pressing the corresponding control buttons on the harvester.
  • the readjustment can, however, also be partially or fully automated.
  • the driver can preselect a value of 5 cm for the working height, to which the header is set as the distance to the ground and is continuously tracked by the electronic control when the harvest is in progress. Both when defining the target size and during ongoing tracking, it is ensured that no inaccurate subjective assessments or only relative position indicators of the harvesting machine influence the height control. If the cutting height of the stubble is to be set to 5 cm, for example, the electronic control can specify this cutting height as the target size for the working height will.
  • the target size is then selected via an operating unit that is specifically assigned to the attachment and that generates an actuating signal to the actuators on the harvesting machine for an automated adjustment of the height of the header, or that belongs to the controls of the harvesting machine, with an automated adjustment the altitude via the electronics and actuators available on the harvester side.
  • the driver of the harvesting machine can then use the display in cm to precisely control the extent to which the actuating devices also control the harvesting header so that the current working height corresponds to the target size. This is particularly true when the electronic control has to react to changes in the ground contour.
  • the driver can use the display to see whether he has appropriately set the sensitivity and the reaction speed of the control or whether the electronic control has set these control parameters appropriately.
  • the driver has more security to guide the harvesting header ideally low, without running a greater risk that the harvesting header could be damaged.
  • the display also helps the driver to find the optimal setting for the working height.
  • the measuring device must therefore be designed in such a way that it can determine the corresponding absolute numerical values with the required accuracy.
  • Appropriate sensors can be used in the measuring device.
  • Rotary potentiometers can be evaluated as sensors that evaluate the movements of a mechanical floor switch in the form of grinding runners, feeler wheels or feeler bars and their signals are converted into absolute numerical values, or ultrasound sensors are used that generate the transit time echo of an im- Calculate pulses to an absolute numerical value for the ground clearance, or radar, laser or other suitable sensors are used that are able to provide absolute numerical values.
  • Different types of sensors can also be used and evaluated at the same time.
  • the electronic computer unit has suitable software that records the transmitted sensor data and displays it.
  • the software has corresponding interfaces to the measuring devices and to the display device, which enable corresponding data processing.
  • the interfaces can be wireless or wired.
  • the cutting height of the cutting device for the crop can be set as the working height.
  • a target value for the reel height of a grain cutter or a target value for the operating height of a support device for stalky crops can be entered in the electronic control.
  • the selection of a working height for one or more components of a harvesting header can be provided depending on the respective harvesting header and its need for height guidance of the respective components.
  • the harvesting attachments are pure mowers that, for example, only cut and lay down, or grain cutters or other attachments such as swaths or maize pickers, which also at least partially pick up the crop they cut, prepare and convey away. It also does not matter whether these harvesting attachments are rigid or multi-part articulated connected to each other over their width. The invention is applicable to all of these configurations.
  • measuring devices are attached to the header, which transmit their sensor values to the electronic computer unit, and the electronic computer unit records several sensor values as absolute numerical values in a unit of measurement and displays them via a display device.
  • measuring devices can be arranged at the outer lateral ends of the header, the sensor values of which are then displayed to the driver as absolute right / left ground clearance values of the header. By displaying the absolute ground clearance values at the right and left ends of the header, the driver can check whether the header is pivoting around the longitudinal axis of the harvesting machine.
  • Additional measuring devices can be distributed across the working width on the header, such as a single central measuring device, and / or two measuring devices which are each arranged approximately in the middle of a right and left half of the working width of the header, and the like.
  • the wider the working width of a header the more important it is to control compliance with the preselected ground clearance at various points in the working width of the header and, if necessary, to readjust it by changing the target value and / or the sensitivity and / or the reaction speed of the electronic Control is adjusted.
  • the display of the several measured absolute ground clearance values enables the driver to carry out this control.
  • the electronic computer unit evaluates the detected sensor values statically and displays the result of the statistical evaluation in the display device.
  • the statistical evaluation can consist, for example, in that an average value and / or maximum deviations from the nominal value for the ground clearance values measured by a measuring device in a time interval are determined and displayed. It is also possible, within the framework of the statistical evaluation, to calculate indicators for a standard deviation as an indication of the accuracy of the height guidance and to display the indicator value to the driver so that he knows how exactly the height guidance of the header works in the area of a respective measuring device .
  • Other statistical evaluations are of course also possible in addition or as an alternative.
  • a display of the indicator enables the driver to check the previous settings for sensitivity, reactivity and / or working height and, if necessary, make adjustments to the previous settings in order to improve the control accuracy.
  • the electronic computer unit can also display suggestions for the driver as to which settings he should change if he wants to improve the accuracy of the height adjustment of the header. Green or red arrows can be displayed, suggesting that the driver should increase or decrease a previous value for a preset parameter.
  • the displays can be displayed in a separate display device, which is installed in the driver's cab of the harvesting machine for operating the harvesting header and which only displays the harvesting header-specific operating data, or the display takes place via a display window in one of the standard or optional equipment in the harvesting machine Display and control screen, which is then supplied with the data required for this via an interface between the electronic computer unit and the electronics of the harvesting machine.
  • the object of the statistical evaluation and / or the object of the display in the display device can be selected with an operator input in the electronic computer unit.
  • the electronic computer unit can provide that the driver selects via an operator input from a menu whether and which statistical evaluation he wants. For example, he can choose whether he wants to display the average values of the absolute distance data, from which past time interval the average values are to be formed, or whether he only wants to see the standard deviation data, also from which time interval it was determined. that should be, or whether it should be shown evaluations that follow from the statistical evaluation, such as suggestions for changes to the currently selected settings and what these should be.
  • the electronic computer unit uses the results of the statistical evaluation to change manipulated variables in the control algorithms for adjusting the height of the header by means of a control signal.
  • the change can take place automatically, so that improvements in the regulation of the height and windage adjustment do not have to depend on the driver recognizing standard deviations and reacting to them correctly.
  • the software-supported and preferably automated adjustment of the manipulated variables can relieve the driver of ongoing control and adjustment tasks and influence the control in such a way that the preselected setpoint for the working height is adhered to even more precisely.
  • the electronic computer unit can in particular also change the settings for the sensitivity and / or the reactivity in the computer unit software.
  • the electronic computer unit can contain a software-based self-learning function that determines the effect of changes made to the settings, evaluates them and decides whether they were correct or incorrect, whether further adjustments are required and whether these are in one direction or the other Adjustability should fail.
  • the control algorithms can be stored directly in the electronic computer unit of the harvesting header so that the manipulated variables can be provided and processed without any problems. But it is also possible that the control algorithms are stored in the computer unit software of the harvesting machine. In this case, the electronic computer unit would have to use a Transfer the interface of the computer unit electronics of the harvesting machine so that it can process the manipulated variables.
  • the automatic control can optionally be configured to be switched on and off via an operator input on the part of the driver.
  • the electronic computer unit uses the results of the statistical evaluation to change the sensor values recorded by the measuring devices before they are transmitted to the computer unit electronics of the harvesting machine and / or to the actuating device. If the electronic computer unit detects, for example, that the electronics on the harvester side react too slowly to changes in distance, the sensor values transmitted by the measuring devices to the electronic computer unit can be increased or decreased by the electronic computer unit before it transmits them to the computer unit electronics of the harvesting machine. By transmitting sensor data that are larger or smaller than the actual current distance values, the computer unit electronics of the harvesting machine can be prompted to transmit stronger actuating signals to the actuating devices with which the working height is adjusted more quickly.
  • ground clearance is reduced from 5 cm to 3 cm, a ground clearance of only 1 cm can be reported, for example, in order to provoke a faster lifting of the header by the control of the height computer unit on the harvester side.
  • sensor values of 9 cm can be reported by the electronic computer unit to the electronics of the harvesting machine in order to accelerate the lowering movement of the height computer unit's control on the harvesting machine.
  • the control characteristics of the harvesting machine lateral height regulation of the header is faster.
  • the electronic computer unit uses the results of the statistical evaluation to output a warning signal that the preselected working height is too low or too high. Does the statistical evaluation show that adjusting the height of the header to the preselected target value more often leads to undesired contact with the ground, or does the electronic computer unit recognize from the statistical evaluation of the distance data that the arable soil is very uneven and is therefore not suitable for the preselected target working height
  • the warning signal issued can prompt the driver to increase the preselected setpoint for the working height. This reduces the risk that the header could be damaged if the setpoint for the working height is too low.
  • the electronic computer unit can recognize that the setpoint value for the working height has been selected too high. In this case too, the warning signal output can lead to the driver lowering the preselected numerical value for the working height.
  • the electronic computer unit uses the results of the statistical evaluation to convert manipulated variables into the To change control algorithms for adjusting the height of the header in permanent preprogrammed control loops in order to optimize the height control of the header. Thanks to the permanent preprogrammed control loops, the electronic computer unit can work continuously to improve the control algorithms for adjusting the height of the header. Via the programming, for example, the sensitivity and / or the reaction speed of the computer unit can be changed under software control in order to then observe the effect of the change in the statistical evaluation and to decide whether the change has improved the height control or not. In the event of an improvement, it must be decided whether the change just made will be continued in a further step in the direction previously taken or whether the setting found will be retained.
  • the electronic cal computer unit is a self-learning system that can automatically improve the height control.
  • the electronic computer unit is arranged in a control device assigned to the header.
  • the control unit can be arranged on the header, but it can also be located on the harvesting machine. Thanks to the special control device for the header, all the electronic components relating to the height display, including the power supply for the electronic components and the means of communication for the measuring devices, can be loaded with the electronic computer unit on the header. ready to be installed.
  • an electrical connection then only needs to be established between the header and the harvesting machine, either only to supply electrical energy or also a data connection to the harvesting machine to exchange the sensor and / or display data.
  • the electronic computer unit has an electronic interface which is used to exchange data after the header has been connected to the harvesting machine.
  • the data exchange with the measuring devices or with the electronics of the display device is carried out via the interface.
  • a harvesting machine is not operated permanently with a single specific harvesting header, it is advantageous to have a special control device assigned to the harvesting header, because the harvesting header can then be operated on changing harvesting machines while taking the control device with it.
  • the hardware and software equipment required for operating the header according to this invention is then always ready for operation.
  • the electronic computer unit present in the control device can be designed on the software side to run through all operating routines when connected to a harvesting machine, in order to be able to operate together with the harvesting machine. Specific registration and operating routines of individual manufacturers of harvesting machines can be taken into account.
  • the control unit and the electronic computer unit stored on it can be designed to control either a dedicated display device for the header and / or a display device that is available as standard or as an option on the harvesting machine.
  • individual or all sensor values are displayed in the display device in addition to the display as absolute numerical values with a graphic symbol representing the distance to the ground for one or more sensor values.
  • a combined display of the absolute numerical values with a graphic symbol makes reading and checking the display easier.
  • a bar chart for example, can be used as a graphic symbol, which shows the respective measured distance of one, several or all sensors through the bar height. Semicircles, full circles or other graphic symbols can also be used. Individual sensor values can be selected, for example only the two outer sensors, or the numerical values of several sensors can be added together and displayed in a common graphic symbol.
  • a graphic symbol for visualizing the lateral pivoting position of the header is displayed in the display device.
  • the current lateral pivot position can be visualized easily recognizable by a corresponding graphic symbol, such as a crossbar, which is shown in the display in a position corresponding to the current pivot position in relation to the horizontal.
  • the graphic symbols show a statistical evaluation of the sensor values.
  • the graphic symbols do not necessarily only have to show the current absolute numerical values; statistical evaluations can also be included in their display.
  • the graphic symbols can visualize average values for the distance to the ground in a time interval, maximum deviations from the target value in a time interval, average standard deviations in a time interval and the like.
  • Fig. 1 a combine harvester with a header
  • Fig. 3 a display device with the display of the absolute number values and additional graphic symbols.
  • a combine harvester is shown as an example of a harvesting machine 2.
  • the harvesting machine 2 is equipped at the end pointing in the working direction with a harvesting set 4, in the exemplary embodiment with a grain cutter.
  • the working height Fl of the header 4 is set by means of an electronic computer unit 6.
  • the header 4 is equipped with a measuring device 8.
  • the measuring device 8 contains a sensor with which a value for the soil distance D can be determined by which the header 4 is spaced from the soil G.
  • the value determined by the measuring device 8 represents, as sensor value 40, the actual value that the header 4 currently has as the distance from the ground G.
  • the sensor of the measuring device 8 must either be arranged in the fleas for which the working height Fl was preselected, or a corresponding correction value is added to or subtracted from the sensor values 40 by which the sensor the measuring device 8 is positioned higher or lower.
  • the electronic computer unit 6 compares the sensor value 40 with a previously entered setpoint value 42 for the floor distance into the electronic computer unit 6. If the electronic computer unit 6 determines a difference 44 between the values, the electronic computer unit 6 transmits an actuating signal 46 to an actuating device 10.
  • the harvesting machine 2 two adjusting devices 10 available, namely a hydraulic cylinder as Stellvorrich device 10a, with which the intake duct is adjustable in height in order to raise or lower the header 4, and another adjusting device 10b in the form of a further hydraulic cylinder with which the reel of the cutting unit can be raised or lowered can.
  • not only one working height H is regulated for a harvesting header 4, but one or more additional working heights for other units of the harvesting header 4.
  • an adjusting device 10 can be provided that adjusts the transverse position of a harvesting header continuously changed in order to adapt the position of the header to sloping surfaces in the field to be worked, which is not shown in the exemplary embodiment.
  • the electronic computer unit 6 transmits an actuating signal 46 to the actuating device 10a, 10b
  • the computer unit of the actuating device 10a, 10b converts the actuating signal 46 accordingly, so that the working height H of the header 4 changes in accordance with the transmitted actuating signal 46.
  • a display device 12 is located in the cab of the harvesting machine 2.
  • the electronic computer unit 6 is connected to the display device 12. In order to display a current sensor value 40 in the display device 12, the electronic computer unit 6 transmits the corresponding sensor value 40 to the display device 12. Likewise, signals as the result of a statistical evaluation 48 and / or warning signals 52 can also be displayed in the display device 12.
  • the electronic computer unit 6 can also be connected to the computer unit electronics 16 of the harvesting machine 2.
  • the sensor values 40 can also be transmitted to the computer unit electronics 16 of the harvesting machine 2.
  • the electronic computer unit 6 is arranged in a control device 14.
  • the electronic computer unit 6 consists of electronic hardware and associated suitable software.
  • the control device 14 can be a component of the computer unit electronics 16 of the harvesting machine. However, it is also possible that the control device 14 is designed as a separate control device that is located on the harvesting header 4 or that is mounted in the cab or at another location of the harvesting machine 2 when the harvesting header 4 is attached to the harvesting machine 2 in order to to be operated.
  • Fig. 2 is a flow chart for the detection and display of sensor values 40 ge shows.
  • the sensor values 40 which are measured by the measuring device or devices 8 are recorded by the electronic computer unit 6.
  • the electronic computer unit 6 has access to previously entered setpoint values 42 for the working height H. If a difference 44 is found when comparing the sensor values 40 with the setpoint values 42, an actuating signal 46 is output to an actuating device 10 in order to determine the spatial position of the To adapt the header 4 or a corresponding component to the target value 42. If no difference is found, no control signal 46 has to be generated either.
  • the sensor values 40 recorded by the electronic computer unit 6 can also be fed to a statistical evaluation 48. What is carried out as statistical evaluation 48 can, depending on the execution of the electronic calculation ntician 6 can be selected via an operator input 50. The result of the statistical evaluation 48 can also be displayed in the display device 12. Of course, the sensor values 40 are also displayed in the display device 12, which the electronic computer unit 6 recorded and also transmitted to the display device 12.
  • the results of the statistical evaluation 48 can also be used by the electronic computer unit 6 in a change step 54 to change the sensor values 40 recorded by the measuring devices 8, before they are sent as control signals 46 to the computer unit electronics 16 of the harvesting machine 2 or to the computer unit electronics of the Actuating device 10 are transmitted.
  • the statistical evaluation 48 can also be used to output a warning signal 52, which can also be transmitted to the display device 12.
  • the warning signal 52 can also be output acoustically.
  • results of the statistical evaluation 48 can also be used to change manipulated variables in the control algorithms for adjusting the height of the header 4 in permanent preprogrammed rule loops by means of actuating signals 46 in order to optimize the height guidance of the header 4.
  • a permanent control loop can be represented by suitable programming of the software.
  • a display device 12 is shown in FIG. 3, in which the absolute numerical values 56 for each sensor value 40 are displayed as numerical values.
  • the numerical values 56 for five sensors are displayed.
  • the numerical values 56 for one, two, three or other numbers of sensors can also be displayed.
  • the respective numerical values 56 displayed for the relevant sensor are shown in a bar as a graphic symbol 58, the respective displayed height is corrected to the numerical value 56 of the respective sensor value in the display and changes if the numerical value 56 also changes.
  • the bar for the middle sensor whose numerical value is shown in the display 1, could also be displayed at a sensor value of 5 in one of the five-fold height shown by dashed lines if the sensor value has changed accordingly.
  • the nominal value 42 can also be shown in the display as an absolute numerical value 56 and as a bar.
  • a further bar is shown as a graphic symbol 60 to represent the pivoting position of the header 4 in relation to the horizontal.
  • the horizontal is shown as a dashed line 62.
  • the position of the bar shown changes, which rotates around the pivot point 64 in the direction of the double arrows at the ends of the bar.
  • other representations of the pivoting position of the header 4 are also possible.
  • the invention is not restricted to the above exemplary embodiments.
  • the person skilled in the art does not have any difficulties in adapting the exemplary embodiments to him Modify it in a manner that appears suitable in order to adapt it to a specific application.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
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Abstract

La présente invention concerne un procédé pour le guidage en hauteur d'une tête de récolte (4) d'une récolteuse agricole (2) au moyen d'une unité de calcul électronique (6) à laquelle sont amenées des valeurs de capteur (40) d'un dispositif de mesure (8) destiné à mesurer la distance (D) entre la tête de récolte (4) et le sol (G). L'objet de l'invention est de mettre au point un procédé qui permet au conducteur de régler la hauteur de travail du mécanisme de coupe de façon à ce qu'elle soit plus basse que lorsqu'il le fait actuellement lors d'une évaluation subjective de la situation de la récolte. À cet effet, selon l'invention, les valeurs de capteur (40) mesurées par le dispositif de mesure (8) et transmises à l'unité de calcul électronique (6) sont acquises par l'unité de calcul électronique (6) en tant que valeurs numériques absolues (56) dans une unité de mesure et sont affichées par l'intermédiaire d'un dispositif d'affichage (12).
PCT/EP2020/070052 2019-07-16 2020-07-15 Procédé pour afficher la hauteur de travail d'une tête de récolte d'une récolteuse agricole WO2021009261A1 (fr)

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Application Number Priority Date Filing Date Title
DE102019119286.2A DE102019119286A1 (de) 2019-07-16 2019-07-16 Verfahren zur Anzeige der Arbeitshöhe eines Erntevorsatzes einer landwirtschaftlichen Erntemaschine
DE102019119286.2 2019-07-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331893A2 (fr) * 1988-03-09 1989-09-13 Claas Ohg Dispositif pour la regulation de position d'une barre de coup
DE4406892A1 (de) 1994-03-03 1995-09-07 Bosch Gmbh Robert Vorrichtung zur Regelung des Bodenabstandes einer Bearbeitungseinheit einer landwirtschaftlichen Maschine
US20060026939A1 (en) * 2004-08-07 2006-02-09 Georg Kormann Adjustment assembly for a harvesting machine
DE102004032065A1 (de) 2004-07-01 2006-02-16 Claas Selbstfahrende Erntemaschinen Gmbh Stützradmechanismus an einem Vorsatzgerät
EP2695511A1 (fr) * 2012-08-11 2014-02-12 Deere & Company Système de commande de hauteur d'une tête de coupe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0331893A2 (fr) * 1988-03-09 1989-09-13 Claas Ohg Dispositif pour la regulation de position d'une barre de coup
DE4406892A1 (de) 1994-03-03 1995-09-07 Bosch Gmbh Robert Vorrichtung zur Regelung des Bodenabstandes einer Bearbeitungseinheit einer landwirtschaftlichen Maschine
DE102004032065A1 (de) 2004-07-01 2006-02-16 Claas Selbstfahrende Erntemaschinen Gmbh Stützradmechanismus an einem Vorsatzgerät
US20060026939A1 (en) * 2004-08-07 2006-02-09 Georg Kormann Adjustment assembly for a harvesting machine
EP2695511A1 (fr) * 2012-08-11 2014-02-12 Deere & Company Système de commande de hauteur d'une tête de coupe

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