Self-propelled harvester

Abstract

The invention relates to an agricultural harvesting machine, in particular a self-propelled combine harvester (1), with a control arrangement (2), wherein the control arrangement (2) comprises an optical sensor device (3) for recording image series of a passing crop stream, an evaluation device (4) for determining a display value broken grain portion (20) and / or a display value non-grain portion (21) of the crop stream based on an image analysis of the recorded image series and a visualization device (5) for displaying the display value broken grain portion (21) and / or the display value non-grain portion (21), wherein the harvesting machine comprises a driver assistance system (22) which comprises an input unit (24), wherein the driver assistance system (22) comprises a setting assistant (25) for setting a correction factor (26), wherein the evaluation device (4) is configured such thatso that it determines the display value broken grain fraction (20) and / or the display value non-grain fraction (21) by means of the set correction factor (26), wherein the setting assistant (25) determines the correction factor (26) in a dialogue with several dialogue steps.

Description

The invention relates to a self-propelled harvester according to the preamble of claim 1.The self-propelled harvester can be designed, for example, as a combine harvester and comprises a control arrangement with a sensor device for recording image series of a crop stream. Furthermore, the control arrangement comprises an evaluation device which first determines a raw fractional grain fraction and / or raw non-grain fraction relating to the image surface from one or more images. This raw fraction of broken grain and / or raw fraction of non-grain related to the image surface is calculated up to a volume-related display value fraction of broken grain or display value fraction of non-grain by means of a correction factor in a next step. In order to calculate up the raw fractional grain portion or the raw non-grain portion to the volume-related display value fractional grain portion or display value non-grain portion, the raw fractional grain portion or raw non-grain portion is multiplied by the correction factor. Such a combine harvester is known from EP 2 826 356 B1.As is explained in more detail in the aforementioned EP 2 826 356 B1, such a correction factor can be determined empirically, i.e. by measurements, and can be stored in a memory of the evaluation device.A disadvantage of such a correction factor is that the correction factor can vary depending on the crop material. In addition, the surface fraction of broken grain measured on the images and the surface fraction of non-grain or the statistical conditions for the corresponding raw fraction of broken grain and raw fraction of non-grain are subject to. Even within a fruit species, the average grain sizes of the crop to be harvested may differ for different crop areas. Consequently, the display value fractional grain fraction and / or display value non-grain fraction determined from the raw fractional grain fraction and / or the raw non-grain fraction by means of the correction factor can deviate from the real actual fractional grain fraction and / or actual non-grain fraction.For an operator, the correction factor can represent an abstract numerical value that he can hardly relate, or not relate at all, to the real conditions on a field to be processed. It is therefore particularly challenging for the operator to make a corresponding adaptation of the correction factor if he establishes a deviation of the display value fraction of broken grain and / or of the display value fraction of non-grain from the real actual fraction of broken grain and / or real actual fraction of non-grain of the crop located in the grain tank of the harvesting machine.It is therefore an object of the invention to avoid the described disadvantages of the prior art and in particular to simplify the setting of an evaluation device for determining an indicator value fraction of broken grain and / or indicator value fraction of non-grain.This object is achieved according to the invention by the characterizing features of claim 1. Advantageous further developments are the subject of the dependent claims.According to claim 1, an agricultural harvester is proposed, in particular a self-propelled combine harvester, having a control arrangement, wherein the control arrangement comprises an optical sensor device for recording image series of a crop stream passing through, an evaluation device for determining a display value fraction of broken grain and / or a display value fraction of non-broken grain of the crop stream on the basis of an image analysis of the recorded image series, and a visualization device for displaying the display value fraction of broken grain and / or the display value fraction of non-broken grain, wherein the harvester comprises a driver assistance system which comprises an input unit, wherein the driver assistance system comprises an adjustment assistant for adjusting a correction factor which is provided for determining the display value fraction of broken grain and / or display value fraction of non-broken grain, wherein the adjustment assistant determines the correction factor in a dialogue with a plurality of dialogue steps.The invention has many advantages. The setting of the evaluation device by means of a setting assistant which determines the correction factor in a dialogue with the operator of the harvesting machine makes it possible for the operator, instead of a direct adaptation of an abstract variable or an abstract numerical value, to adapt the agricultural target variable in the context of a dialogue. This significantly simplifies the setting of the evaluation device for the operator. The operator can evaluate the actual fraction of broken grain and / or the actual fraction of non-grain of a quantity of crop material located in the grain tank. If the operator indicates a negative assessment or a deviation from his expectation of the actual fraction of broken grain and / or of the actual fraction of non-broken grain within the scope of the dialogue, an adaptation of the correction factor can be proposed in a further dialogue step. The display value fractional grain portion and / or display value non-grain portion serves a control device of the harvesting machine for setting the working tools, and consequently the actual fractional grain portion and / or the actual non-grain portion are simultaneously optimized from the adaptation of the display value fractional grain portion and / or the display value non-grain portion.An advantageous further development provides that the evaluation device determines a raw broken grain fraction and / or a raw non-grain fraction from the image series and calculates an indicator value broken grain fraction and / or an indicator value non-grain fraction from the raw broken grain fraction and / or raw non-grain fraction.A further advantageous development provides that the raw fraction of broken grain and / or the raw fraction of non-grain corresponds to a surface fraction of broken grain and / or surface fraction of non-grain of at least one image of the series of images, and the display value fraction of broken grain and / or the display value fraction of non-grain corresponds to a volume fraction of non-grain and / or volume fraction of broken grain related to a throughput of a main crop stream.An advantageous further development provides that the visualization device is provided and configured for displaying the display value fractional grain portion and / or the display value non-grain portion, wherein the visualization device preferably displays a bar graph, wherein the bar graph represents the display value fractional grain portion and / or the display value non-grain portion. From this display, the operator can easily grasp whether the display value broken grain content and / or the display value non-grain content is in an allowable range.According to an advantageous embodiment, the dialog of the setting assistant can have a dialog step A, which comprises the input of a desired fraction of broken grain and / or a desired fraction of non-broken grain. The desired fraction of broken grain and / or the desired fraction of non-grain can be a target specification for the crop material accumulating in the grain tank during the harvesting process. A control device of the harvesting machine can set the parameters of the working tools in such a way that the display value fraction of broken grain and / or the display value fraction of non-grain at least approach the target fraction of broken grain and / or the target fraction of non-grain.According to an advantageous embodiment, the dialog of the setting assistant can have a dialog step B, which comprises a query of a target variable to be optimized, wherein the actual fraction of broken particles and / or the actual fraction of non-broken particles can be selected as target variable. If the operator of the harvesting machine is unsatisfying with the actual fraction of broken grain and / or the actual fraction of no grain of the crop located in the grain tank, he can easily select a target variable to be improved in the context of dialogue step B.According to an advantageous embodiment, the dialog of the adjustment assistant can have a dialog step C, which comprises an evaluation of the actual fraction of broken grain and / or of the actual fraction of non-grain of a quantity of crop material located in a grain tank. In order to make the assessment of the actual fraction of broken grain and / or the actual fraction of non-broken grain particularly simple, the operator can, in dialogue step C, divide the actual fraction of broken grain and / or the actual fraction of non-broken grain into quality classes, preferably divide it into five quality classes.According to an advantageous embodiment, the dialogue of the adjustment assistant can have a dialogue step D, which comprises a proposal for the correction factor to be adjusted, wherein the proposal for the correction factor to be adjusted is preferably based on the assessment of the actual fraction of broken grain and / or the actual fraction of non-grain of the crop located in the grain tank.The dialogue of the setting assistant can preferably have a dialogue step E in which an operator confirms the proposal for the correction factor to be set displayed to him, as a result of which the evaluation device uses or rejects the proposed correction factor for calculating the display value fractional proportion and / or the display value non-fractional proportion.According to an advantageous development, the agricultural harvester can comprise at least one control device and a plurality of working tools, wherein the working tools comprise at least one threshing element, a separating device and a cleaning device, wherein the control device is configured for controlling and / or regulating the working tools such that the display value fraction of broken grain and / or the display value fraction of non-grain is approximated to the target fraction of broken grain and / or the target fraction of non-grain.According to an advantageous development, the sensor device can have a transparent housing piece which is part of a wall surface of a tube-like crop guide, in particular of a grain elevator.The present invention is explained in more detail below with reference to an exemplary embodiment shown in the drawings. FIG. 1 shows a schematic side view of a combine harvester as an agricultural harvester according to the proposal; FIG. 2 is a schematic side view of a grain elevator of the combine harvester of FIG. 1 ; FIG. 3 is a bar graph showing a display value fractional grain portion and a display value non-grain portion; FIG. 4 shows a dialog step for setting a correction factor; FIG. 5 shows a dialog step for setting a correction factor; FIG. 6 shows a dialog step for setting a correction factor.The agricultural harvester shown in FIG. 1, which here is a combine harvester 1 by way of example, has a control arrangement 2. This control arrangement 2 comprises an optical sensor device 3 for recording image series of a main crop stream passing through and an evaluation device 4 for determining a display value fractional grain portion 20 and / or a display value non-grain portion 21 of the main crop stream, which display value fractional grain portion 20 and / or the display value non-grain portion 21 is still to be explained, based on a recorded image series, and a visualization device 5 for displaying the display value fractional grain portion 20 and / or the display value non-grain portion 21.In this case, in particular the evaluation device 4 and the visualization device 5 can be embodied both separately and as a single device. An image series in this sense consists of any desired series of individual images recorded at a short distance one behind the other, wherein such an image series can also consist only of a single image. In a particularly preferred embodiment, each image series consists of a constant number of images.One or more images from the image series can also be selected for further evaluation, wherein the remaining images can also be discarded. The time interval between the individual images of an image series can be defined as the intermediate image time, wherein the total duration of the image series could then be referred to as the image series duration. The intermediate image time can be constant as well as, which is preferred, variable and in particular adjustable by the evaluation device 4. A video recording can also take place, from which one or more individual still images are then selected, which thus form an image series. The intermediate image time in such a case results from the time offset between the individual images in an analogous manner. The individual images of the image series can have different image parameters, i.e. in particular a different angle perspective, illumination time, image recording duration, spectrum of the illumination light, etc. The individual images can also have been recorded by a distributed sensor device 3 comprising a plurality of individual sensor devices, wherein these images recorded from different perspectives can then also be combined to form a single image series.The term "crop stream" of the harvesting machine is understood in the present case to mean the stream of the processed crop material on the crop transport path of the harvesting machine, which crop transport path begins at the header 6 specifically in the case of the combine harvester 1 and at least leads to the grain tank 7 of the combine harvester 1. The term "main crop stream" now denotes that part of the crop stream which forms the predominant part of the harvested crop, based on the entire crop transport path. In other words, this does not mean a (partial) crop flow which is moved in the manner of a bypass, for example, by a potentially present, smaller secondary branch of the crop transport path.The term "fraction of broken grain" or "fraction of non-grain" means the fraction of broken grains in all grains in the crop stream on the one hand and the fraction of material in the crop stream, which is not grain in the sense of the crop, on the other hand. Material can therefore also flow into the non-grain portion, which material actually represents grain, but is not grain of the currently harvested crop. Here, the term "raw fraction of broken grain" or "raw fraction of non-grain" refers to a fraction of broken grain or fraction of non-grain detected on an image surface of the image series.The operator of the harvesting machine is displayed, in a manner to be explained in more detail below, a volume-related display value fraction 20 and / or a display value fraction 21 which is not grain. The determined fractional display value portion 20 and / or non-display value portion 21 may be based on a single image of the series of images, on the entire series of images, or on a specific selection of one or more images of the series of images. In this case, one or more images can be selected from the image series, which images represent the best recording according to a quality criterion. Such a quality criterion can be a particularly suitable brightness, contour or contrast distribution.The evaluation device 4 fundamentally performs an image analysis of the image series or of a part of the image series, in which preferably first of all fracture grains and non-grains are recognized in the image on the basis of suitable algorithms. The area occupied by the broken grains and non-grains on the two-dimensional image is then calculated as an area ratio, the respective area ratio corresponding to the raw broken grain portion and the raw non-grain portion, respectively. In the next step, the area ratio is calculated up to a volume proportion by means of a suitable extrapolation function and the display value fractional grain proportion 20 or display value non-grain proportion 21 displayed to the operator is thus determined.The control arrangement 2 cyclically records image series and displays a current display value fractional grain portion 20 and / or display value non-grain portion 21 based on the image series within a predetermined processing time after the recording of an image series. The cyclicality thus relates to the image series, wherein the recording time of the first image of the image series can be defined as the relevant time for determining the cyclicality. The above-defined image series recording duration can also be equal to the cycle time of the image series, which corresponds to a quasi-continuous recording of images without a noticeable pause between individual image series.The display of a display value fractional grain portion 20 and / or display value non-grain portion 21 based on the image series after the recording of the image series within a predetermined processing time can also be understood as a real-time condition or real-time requirement. A processing time is therefore predetermined, within which the display of a display value fractional grain portion 20 and / or display value non-grain portion 21 takes place after recording an image series, wherein this display value fractional grain portion 20 and / or display value non-grain portion 21 is based on the recorded image series. In other words, the maximum time between these two events-as it were the running time between the recording of an image series and the display of a display value fractional grain portion 20 and / or display value non-grain portion 21 based thereon-is defined as the processing time within which the information in the recorded image series is reflected in the displayed display value fractional grain portion and / or display value non-grain portion. If, as preferred, for each recorded image series, a display value fractional grain portion 20 and / or display value non-grain portion 21 based on the image series is displayed, then the displayed display value fractional grain portion 20 and / or display value non-grain portion 21 can be updated cyclically in the same way as the image series is recorded.The harvesting machine preferably has controllable working tools 8 and the control arrangement 2 has a control device 9 for setting the parameters of the working tools 8 on the basis of the display value fraction 20 and / or the display value fraction 21. As also shown in the embodiment of the combine harvester 1 in FIG. 1, the control and regulating device 9 can be arranged in the same device as the evaluation device 4.In the case of the combine harvester 1 illustrated here, the controllable working tools 8 include, in addition to the already mentioned cutting unit 6, the feeder 10, which is connected to the latter. Via a deflecting drum 13, the crop stream reaches the separating device 14, which is designed here as a separating rotor and in which freely movable grains of the crop stream are separated off into a lower region. From there, the crop stream reaches via the return floor 15 a cleaning device 16, which, as shown here, comprises a plurality of screening planes 17 and a blower 18. From here the grain elevator 19 finally leads the crop stream to the grain tank 7.The mentioned working tools 8 can be controlled and provide parameter setting. The relationship between the parameter setting of the working tools 8 and the quality of the crop is complex and depends both on the type of crop and on a plurality of further boundary conditions. By way of example, it should be pointed out that, for example, if the threshing elements 12 are operated too strongly, excessive breaking of grains in the crop material occurs and more energy is also consumed during threshing. On the other hand, too low a threshing intensity of threshing organs 12 may result in a lower displacement and thus in a low yield.Likewise, in the cleaning device 16, the parameter setting is to be carried out in such a way that, on the one hand, as much as possible all grains of the crop material are carried further in the crop transport path, but impurities and other undesired constituents are separated out in this respect. Even under known boundary conditions, the optimum parameter setting of the working tools 8 represents a challenge. Preferably, automatic or partially automatic control and parameter setting of the working tools 8 can be effected by the control device 9 of the control arrangement 2.Furthermore, it is preferably provided that the evaluation device 4 determines the raw fractional grain fraction and / or raw non-grain fraction and an averaged display value fractional grain fraction 20 and / or averaged display value non-grain fraction 21. In this case, the raw fractional grain portion and / or the raw non-grain portion either has no temporal averaging or at least a lower, in particular temporal averaging, compared to the averaged display value fractional grain portion 20 and / or the averaged display value non-grain portion 21. It is provided that the visualization device 5 displays the display value fraction of broken grain and / or display value fraction of no grain. Confusion of the operator due to jumps in the display can therefore be avoided in that the current display value fractional grain portion 20 and / or current display value non-grain portion 21 displayed for the operator has experienced at least one moderate form of averaging.It is preferred that the raw fraction of broken grain and / or the raw fraction of non-grain is up-calculated to a throughput of the main crop stream by referring a measured surface fraction of broken grain and / or surface fraction of non-grain of at least one image of the image series to a volume fraction of broken grain or display value fraction of broken grain 20 and / or a volume fraction of non-grain or bed fraction of non-grain 21 by means of a respective correction factor. The correction factor is different in each case for the determination of the fraction of broken grain and the fraction of non-grain. Such a correction factor, which can also be present as a function of the surface fraction of broken grains or of the surface fraction of non-grains, takes into account the fact that the area of broken grains or non-grains in an image taken as a percentage does not necessarily correspond to the volume of broken grains or non-grains in the main crop stream taken as a percentage. Here, the correction factor for the fraction of broken grain can be dependent in particular both on the fraction of broken surface grain and on the fraction of non-broken surface grain.Likewise, the correction factor for the non-grain proportion can be dependent both on the surface non-grain proportion and on the surface fractional grain proportion.The said correction factor, which is in particular crop-material-dependent, has preferably been determined empirically, i.e. by measurements, and stored in the evaluation device 4. In order to obtain the display value fractional grain portion 20 or the display value non-grain portion 21, the surface fractional grain portion or the surface non-grain portion is multiplied by the respective correction factor. The up-calculation on the throughput of the main crop stream refers to the volume of the entirety of the main crop stream as it is passed through the harvester and specifically the combine 1. It is preferred that the display value fraction 20 and / or the display value fraction 21 or the current volume fraction and / or the current volume fraction is displayed as a percentage.As already indicated above, the correction factor can vary depending on the crop material. In addition, the surface fraction of broken grain measured on the images and the surface fraction of non-grain or the statistical conditions for the corresponding raw fraction of broken grain and raw fraction of non-grain are subject to. Even within a fruit species, the average grain sizes of the crop to be harvested may differ for different crop areas. The display value fracture grain portion 20 and / or display value non-grain portion 21 determined from the raw fracture grain portion and / or the raw non-grain portion can therefore deviate from the real actual fracture grain portion 39 and / or actual non-grain portion 40. Here and preferably, the actual fraction of broken grain or the actual fraction of non-grain 40 corresponds to the real fraction of broken grain or real fraction of non-grain, respectively, of a quantity of crop material located in the grain tank 7. For this reason, the harvesting machine according to the invention comprises a driver assistance system 22, which is to be explained in more detail further, by means of which the correction factor 26 can be adjusted with the conversion of the raw broken grain fraction and / or raw non-grain fraction to the display value broken grain fraction 20 and / or operator non-grain fraction 21. The driver assistance system 22 comprises an input unit 24, which serves for interaction with the operator of the harvesting machine. The input unit 24 can be formed by the visualization device 5. By means of an adjustment of the correction factor 26, the operator can adjust the display value fractional grain portion 20 and / or the display value non-grain portion displayed to him to the actual fractional grain portion 39 and / or actual non-grain portion 40.For setting the correction factor 26, the driver assistance system 22 comprises a setting assistant 25. Such an adjustment assistant 25 is depicted by way of example in FIGS. 4 to 6. The setting assistant 25 determines the correction factor 26 to be set in a natural-language dialogue with a plurality of dialogue steps.The dialog of the adjustment assistant 25 can comprise a dialog step A, not shown in detail here, in which the operator of the harvesting machine inputs a desired fraction of broken grain 27 and / or a desired fraction of non-broken grain 28. The desired fraction 27 of broken grain and / or the desired fraction 28 of non-grain is a target specification for the crop accumulating in the grain tank 7 during the harvesting process. The control device 9 adjusts the parameters of the working tools 8 such that the display value fractional grain portion 20 and / or the display value non-grain portion 21 at least approach the target fractional grain portion 27 and / or the target non-grain portion 28.The dialogue of the setting assistant 25 can comprise a dialogue step B illustrated in FIG. 4, which comprises a query of a target variable to be optimized, wherein the actual fraction 39 of broken particles and / or the actual fraction 40 of non-broken particles can be selected as target variable. If the operator of the harvesting machine is unsatisfaction with the actual fraction 39 of broken grain and / or the actual fraction 40 of non-grain of the crop located in the grain tank 7, he can select the target variable to be improved in the context of the dialogue step B.The dialogue of the setting assistant 25 can have a dialogue step C illustrated in FIG. 5, which comprises an evaluation of the actual fraction 39 of broken grain and / or of the actual fraction 40 of non-broken grain of the quantity of crop material located in the grain tank 7. Here and preferably, in dialogue step C, the operator can divide the actual fraction 39 of broken particles and / or the actual fraction 40 of non-broken particles into at least three quality classes, preferably into five quality classes 29. By way of example, FIG. 5 shows five quality classes 29 for the actual non-grain fraction 40. Grades 29 include a five-step selection of too much non-grain fraction 40 to too little non-grain fraction 40.Here, the dialogue of the adjustment assistant 25 comprises a dialogue step D illustrated in FIG. 6, which comprises a proposal for the correction factor 26 to be adjusted, wherein the proposal for the correction factor 26 to be adjusted is based on the assessment of the actual fraction 39 of broken grain and / or the actual fraction 40 of non-broken grain of the crop located in the grain tank 7. The operator may accept or reject the proposal. An assumption of the proposal has the effect that the correction factor for calculating the display value fractional grain portion 20 and / or the correction factor for calculating the display value non-grain portion 21 is adapted. On the basis of the display value fractional grain portion 20 and / or the display value non-grain portion 21, the control device 9 controls or regulates the working parameters of the working tools 8, and consequently the correction factor is adjusted at the same time that the working tools 8 are controlled in such a way that the actual fractional grain portion 39 and / or the actual non-grain portion 40 approach the target fractional grain portion 27 and / or the target non-grain portion 28.For display, it is preferably provided that the visualization device 5 displays a bar graph 23 illustrated in FIG. 3, wherein the bar graph 23 displays the display value fractional grain portion 20 and / or the display value non-grain portion 21. At the same time, a marking corresponding to the desired fraction 27 and the desired fraction 28 is depicted in the bar graph 20, so that the operator is informed as to whether the ascertained display value fraction 20 and / or display value fraction 21 are in a permissible range.In this regard, it is provided that the sensor device 3-as shown in FIG. 2-comprises a light detector 30, which is preferably a CMOS (Complementary Metal Oxide Semiconductor) light sensor 30 aand an illumination device 31, preferably formed by a light-emitting diode arrangement 31 a.With regard to the above-mentioned illumination device 31, it is preferably provided that the illumination device 31 generates a respective luminous pulse for each image of an image series.In addition to the internal configuration of the sensor device 3, there are also preferred arrangements and configurations of the sensor device 3 within the harvesting machine. It is especially preferred that, as can be seen from FIG. 2, the sensor device 3 has a transparent housing piece 32, which is part of a wall surface 33, which is in particular locally flat, of a preferably tube-like crop guide 34. The crop guide 34 can be, in particular, the grain elevator 19. In other words, the transparent housing piece 32, which serves for the transmission of both the luminous pulses and their respective reflection, is a part of the wall of the crop guide 34 and neither protrudes from nor is it set back with respect to this wall. Such an arrangement has the advantage that the sensor device 3 can not only be arranged particularly close to the crop stream and its presence influences the guiding of the crop stream on the crop transport path as little as possible, but also causes the components of the crop stream themselves to effect its cleaning by their impingement on the transparent housing piece 32. Stowage is thus effectively prevented.It is preferred that the crop guide 34 has a crop drive arrangement 35, preferably crop paddle 36, which moves the main crop stream such that it is at least partially directed onto the transparent housing piece 32. If it is ensured in this way that crop material of the main crop material stream is essentially always present in the immediate vicinity of the transparent housing piece 32 or touching it, then the sensor device 3 can always be focused at a fixed distance, preferably at a point essentially immediately beyond the transparent housing piece 32, and it is nevertheless ensured that the main crop material stream can be detected at this focused distance.A preferred variant provides here that the main crop stream is directed, at least partially, at an acute angle 37, which is therefore less than 45° and in particular less than 22.5°, onto the transparent housing piece 32. An exemplary acute angle 37 is shown in FIG. 2. In this way, it is ensured that, on the one hand, a possible impact of the main crop stream on the housing piece 32 does not substantially deflect the latter from its normal course and, on the other hand, a defined relative movement takes place between the main crop stream and the housing piece 32.List of reference numbers:1 Combine harvester 2 Control arrangement 3 Sensor device 4 Evaluation device 5 Visualization device 6 Cutting unit 7 Grain tank 8 Working tools 9 Control device 10 Feeder 11 Threshing cage 12 Threshing elements 13 Deflection drum 14 Separating device 15 Return floor 16 Cleaning device 17 Screen planes 18 Blower 19 Grain elevator 20 Display value broken grain portion 21 Display value non-grain portion 22 Driver assistance system 23 Bar graph 24 Input unit 25 Setting assistant 26 Correction factor 27 Target broken grain portion 28 Target non-grain portion 29 Quality class 30 Light detector 30 a Lichtsensor sensor 31 Lighting device 31 aLight emitting diode arrangement 32 Housing piece 33 Wall surface 34 Crop guide 35 Crop drive arrangement 36 Crop paddle 37 Angle 38 Crop guide cross section 39 Actual broken grain portion 40 Actual non-grain portion B Dialog Step C Dialog Step D Dialog Step E Dialog StepReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedEP 2 826 356 B1 [0002, 0003]DE 10 2013 107 169 A1

[0021]

Claims

Agricultural harvester, in particular a self-propelled combine harvester (1), having a control arrangement (2), wherein the control arrangement (2) comprises an optical sensor device (3) for recording image series of a crop stream passing through, an evaluation device (4) for determining a display value fraction (20) and / or a display value fraction (21) of the crop stream on the basis of an image analysis of the recorded image series, and a visualization device (5) for displaying the display value fraction (21) and / or the display value fraction (21), wherein the harvester comprises a driver assistance system (22) which comprises an input unit (24), characterized in that the driver assistance system (22) comprises an adjustment assistant (25) for adjusting a correction factor (26), wherein the evaluation device (4) is configured such that, such that said computer determines the display value fractional component (20) and / or display value non-fractional component (21) by means of the adjusted correction factor (26), wherein the adjustment assistant (25) determines the correction factor (26) in a dialogue with a plurality of dialogue steps.Agricultural harvester according to claim 1, characterised in that the evaluation device (4) determines a raw broken grain fraction and / or a raw non-grain fraction from the image series and calculates an indicator value broken grain fraction (20) and / or an indicator value non-grain fraction (21) from the raw broken grain fraction and / or raw non-grain fraction.Agricultural harvester according to Claim 2, characterized in that the raw fraction of broken grain and / or the raw fraction of non-broken grain corresponds to a surface fraction of broken grain and / or surface fraction of non-broken grain of at least one image of the series of images, and the display value fraction of broken grain (20) and / or the display value fraction of non-broken grain (21) corresponds to a volume fraction of non-broken grain and / or volume fraction of broken grain relating to a throughput of a main crop stream.Agricultural harvester according to one of Claims 1 to 3, characterized in that the visualization device (5) is provided and configured for displaying the display value fraction (20) and / or the display value fraction (21), wherein the visualization device (5) preferably displays a bar graph (23), wherein the bar graph (23) represents the display value fraction (20) and / or the display value fraction (21).Agricultural harvester according to one of Claims 1 to 4, characterized in that the dialogue of the adjustment assistant (25) has a dialogue step A which comprises the input of a desired fraction of broken grain (27) and / or of a desired fraction of non-broken grain (28).Agricultural harvester according to one of Claims 1 to 5, characterized in that the dialog of the setting assistant (25) has a dialog step B which comprises a query of a target variable to be optimized, it being possible to select an actual fraction of broken grain (39) and / or an actual fraction of non-broken grain (40) as target variable.Agricultural harvester according to one of Claims 1 to 6, characterized in that the dialogue of the adjustment assistant (25) has a dialogue step C which comprises an evaluation of the actual fraction of broken grain (39) and / or of the actual fraction of non-broken grain (40) of a quantity of crop material located in a grain tank (7).Agricultural harvester according to one of Claims 1 to 7, characterized in that the dialogue of the adjustment assistant (25) has a dialogue step D which comprises a proposal for the correction factor (26) to be adjusted, wherein preferably the proposal for the correction factor (26) to be adjusted is based on the assessment of the actual fraction of broken grain (39) and / or of the actual fraction of non-broken grain (40) of the quantity of crop material located in the grain tank (7).Agricultural harvester according to Claim 8, characterized in that the dialogue of the adjustment assistant (25) has a dialogue step E in which an operator confirms the proposal displayed to him for the correction factor (26) to be adjusted, as a result of which the evaluation device (4) uses or rejects the proposed correction factor (26) for calculating the display value fraction (20) and / or the display value fraction (21).Agricultural harvester according to one of Claims 5 to 9, characterized in that the agricultural harvester comprises at least one control device (9) and a plurality of working tools (8), wherein the working tools (8) comprise at least one threshing element (12), a separating device (14) and a cleaning device (16), wherein the control device (9) is configured to control and / or regulate the working tools (8) such that the display value fraction (20) and / or the display value fraction (21) is approximated to the desired fraction (27) and / or the desired fraction (28).Agricultural harvester according to one of Claims 1 to 10, characterized in that the sensor device (3) has a transparent housing piece (32) which is part of a wall surface (33) of a tubular crop guide (34), in particular of a grain elevator (19).

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