KR102302684B1 - Harvester - Google Patents

Abstract

An object of the present invention is to provide a harvester capable of confirming not only the final total yield of the field, but also the yield of the field during the harvesting operation.
A measuring device 2 for measuring the amount of a harvest stored in a harvest tank 9 that temporarily stores a harvested harvest while traveling on a field, and a measurement environment of the measuring device 2, high reliability resulting in high reliability measurement A measurement situation determination unit 60 that determines whether it is a measurement situation or a low-reliability measurement situation that results in low-reliability measurement, and a yield calculated from the measurement result under a high-reliability measurement situation is set as a high-reliability yield; A yield calculation unit 5 that calculates the integrated yield of the field based on the high-reliability yield, and a display unit that displays the current yield and the integrated yield calculated from the measurement result, which are the stored yields in the harvest tank 9 ( 7) is provided.
In addition, an object of the present invention is to provide a harvester capable of measuring and displaying the amount of crops stored in a crop tank, regardless of measurement conditions affecting measurement reliability.
A measuring device 2 for measuring the amount of a harvest stored in a harvest tank 9 that temporarily stores a harvested harvest while traveling on a field, and a measurement environment of the measuring device 2, high reliability resulting in high reliability measurement A measurement condition determination unit 60 that determines whether a measurement condition is a measurement condition or a low reliability measurement condition resulting in low reliability measurement, and calculating a yield that is a high reliability yield from the measurement result under a high reliability measurement condition, A yield calculation unit 5 that calculates a yield that is a low-reliability yield from the measurement results under a reliability measurement condition, and a display unit 7 that displays these yields are provided.

Description

Harvester {HARVESTER}

The present invention relates to a harvester for temporarily storing a crop harvested from a field while driving in a harvest tank.

In such a harvester, the harvesting operation is performed on one or more fields by repeatedly receiving and discharging the harvest from the harvest tank. In the combine (one type of harvester) disclosed in Patent Document 1, when the harvest weight switch is operated, the amount obtained by subtracting the measured weight of the empty grain tank from the measured weight of the grain tank in which the grain is stored is the grain weight inside the grain tank. saved and displayed. In addition, when harvesting work is performed continuously in several field|fields, the harvested grain weight for every field can be confirmed by operating a gross weight switch. However, in this harvesting period, while the harvesting operation of a single field is being performed while repeatedly receiving and discharging from the harvest tank, the amount of grain (accumulated yield) harvested from the field up to that point cannot be confirmed. . In addition, in this harvester, one of the measurement conditions of the grain tank is that the horizontal control is off, and since horizontal control is usually performed during the harvesting operation running, measuring the grain weight inside the grain tank in real time during the harvesting operation running is It is not intended In addition, high precision cannot be expected for the weight measurement of grain tanks that are unstable in the middle of the implementation of horizontal control, and the grain weight obtained from such a measurement is used as an integrated value for calculating the total harvested grain weight of each field Otherwise, the total harvested grain weight for each field will be inaccurate. Incorrect total harvested grain weight adversely affects agricultural management such as soil improvement, fertilization management, and water management performed with reference to it.

Japanese Patent Application Laid-Open No. 10-229740

In view of the above situation, the object of the present invention is to not only the final total yield of the field, but also during the harvesting operation performed while repeatedly receiving and discharging from the harvest tank for one field. It is to provide a harvester that can also confirm the yield of the field in the field.

In addition, from the above situation, first, regardless of the measurement conditions affecting the measurement reliability, the amount of harvest (yield) stored in the harvest tank is measured, the yield is displayed, and the driver can check the yield in real time. thing is being desired Moreover, in the case where the total yield for each field is used for agricultural management, it is desired that the total yield for each field be calculated based on a reliable measurement result.

A harvester according to an embodiment of the present invention includes a harvest tank for temporarily storing a harvest harvested while traveling on a field, a measuring device for measuring the amount of harvest stored in the harvest tank, and a measuring environment of the measuring device, a measurement situation determination unit for judging whether a high-reliability measurement situation causing reliability measurement or a low-reliability measurement situation causing low reliability measurement; A yield estimating unit that calculates the integrated yield of the field based on the high-reliability yield while setting the high-reliability yield, and the current yield, which is the stored yield in the harvest tank, calculated from the measurement result of the measuring device; and a display unit for displaying the integrated yield, wherein the display unit may display a provisional field yield that is the sum of the current yield and the integrated yield.

According to this configuration, during the execution of the harvesting operation for one field, the integrated yield of the field calculated using the high-reliability yield obtained from the measurement result measured under the high-reliability measurement condition is displayed, so the total yield of the field is displayed. In addition, the yield during the harvest operation in the field can also be confirmed. At the same time, since the current yield, which is the stored yield in the existing harvest tank, is also displayed, the harvest amount in the harvest tank during the harvesting operation can also be confirmed.

In order to calculate the cumulative yield in a harvesting operation that is performed while repeatedly receiving and discharging from the harvest tank for a single field, the amount of harvest discharged from the harvest tank is taken as the partial integrated yield, and each It is convenient to obtain In addition, when starting the unloading operation, since the harvester is stopped in a stable horizontal position, the yield measurement in that state automatically becomes a highly reliable yield measurement. In this regard, in one preferred embodiment of the present invention, the integrated yield is calculated by integrating the high-reliability yield calculated for each unloading operation of discharging the harvest from the harvest tank.

In addition, in order to manage the total yield for each field, it is necessary to reset the above-mentioned partial integrated yield at the start of the harvesting operation of each field. In order to avoid forgetting such a reset operation, what is necessary is just to configure so that the said integrated harvest amount may be reset based on the work start instruction|command input by an operator at the time of starting a harvesting operation of each field. In addition, in order to more efficiently manage the total yield for each field, the work start instruction includes identification data of the field to be harvested, and is the final integrated yield for each field calculated by the yield calculation unit. It is preferable if the said identification data is related to a yield. Thereby, the total yield for each field acquired at the harvesting season can be reliably related to various attributes (fertilization management data, water management data, weather data, etc.) of the corresponding field.

In addition, the harvester according to another embodiment of the present invention includes a harvest tank for temporarily storing a harvested harvest while driving, a measuring device for measuring the amount of harvest stored in the harvest tank, and a measuring environment of the measuring device, A measurement situation determination unit for judging whether a high-reliability measurement situation causing reliability measurement or a low-reliability measurement situation causing low reliability measurement, and a high-reliability yield from the measurement result of the measuring device under the high-reliability measurement situation A yield calculation unit that calculates a yield and calculates a yield that is a low-reliability yield from the measurement result of the measuring device under the low-reliability measurement situation, and a display unit that displays the yield.

According to this configuration, regardless of whether the measurement condition of the measuring device is a high-reliability measurement situation or a low-reliability measurement situation, the amount (yield) of the crop stored in the harvest tank is measured, and the yield calculated from the measurement result is is displayed Thereby, the driver can check the yield in real time at any time, and even if the reliability of the displayed yield is low, a rough guess can be made. In addition, since the measurement status determination unit determines whether the measurement result obtained by the measuring device is of low reliability or high reliability based on the determination result, it is also possible to select and use a high reliability yield in the subsequent processing. .

Identification as a high-reliability yield or identification as a low-reliability yield is assigned to the yield calculated by the yield calculation unit based on the determination result of the measurement status determination unit. Therefore, as one suitable embodiment, the calculated yield can be displayed in the same display location in different display forms when the yield is the high reliability and when the yield is the low reliability. Thereby, the driver can know the accuracy of the displayed yield. In addition, as a display form here, various well-known display forms, such as a color and a size, are included.

However, in order to avoid the possibility of giving unnecessary confusion to the driver due to the different display forms of the displayed yields, a configuration in which the high-reliability yield and the low-reliability yield are displayed in the same display location may be adopted. . By adopting this configuration, it is possible to minimize the yield display area. In addition, a display mode in which the high-reliability yield and the low-reliability yield are displayed in the same display mode and the high-reliability yield and the low-reliability yield in a different display mode may be provided, so that each can be selected.

Various working machine conditions are considered as a suitable working machine state for creating a high-reliability measurement situation, but it is particularly important that the airframe carrying the harvest tank is in a horizontal and stable state. In addition, when a measurement method for measuring the weight of the stored crop including the harvest tank is employed, it should be considered that the harvest tank is equipped with a swinging unloading device for discharging the harvest from the harvest tank. In other words, it is important to create a high-reliability measurement situation that the unloading device is not located in a position that applies an abnormal load to the harvest tank, but is firmly maintained in a storage position (home position) that gives a standard harvest tank weight. to be in a state In addition, considering that the unloading operation is performed in a stable state by stopping the harvester, the measurement condition determination unit determines the high reliability measurement condition by detecting a stopped condition for the unloading operation of discharging the harvest from the harvest tank. It is correct that it is configured to do so.

However, it is not necessary to arrange all of the various working conditions to create a high-reliability measurement situation. It is advantageous in terms of cost if only the working state that is easy to judge is adopted. From this point of view, in one preferred embodiment of the present invention, any one or all of stopping the car body of the harvester, shifting the car body to a horizontal position, shutting off power to the machine for harvesting work, and fixing the machine for unloading work at the stowed position. is realized, to determine the high-reliability measurement situation.

The above-described high-reliability measurement situation emerges in a specific working condition or operating condition performed in the harvester. If the yield measurement is performed when such a condition occurs, a high-reliability yield can be obtained, but only waiting for such a condition cannot obtain a high-reliability yield when the driver wants it. For this reason, in one suitable embodiment of this invention, a harvester is controlled so that the said high-reliability measurement situation may emerge in response to the yield measurement command input by an operator. Such a yield measurement command may be generated by, for example, a yield measurement SW (switch) operated by the driver. That is, by operation of such a yield measurement SW, any one or all of stopping of the harvester body, shifting to the horizontal position of the harvester body, shutting off the power to the equipment for harvesting work, and fixing the equipment for unloading work at the storage position The realization process is executed, and a high-reliability measurement situation appears.

A driver who wants to focus only on harvest driving wants to omit the operation of giving a yield measurement command to the control system, so driving that wants to accurately display the yield at any point in time can give the control system a yield measurement command as described above. You want the configuration to be there. In order to satisfy the demands of both different drivers of this type, in one preferred embodiment of the present invention, a normal mode in which the high-reliability yield is calculated only by input of the yield measurement instruction, and input of the yield measurement instruction A simple mode in which the high-reliability yield is calculated irrespective of the above is installed selectively.

In a harvesting operation that is performed while repeatedly receiving and discharging from the harvest tank, in order to obtain the total yield of a single field, the yield of the harvest stored in the harvest tank before the unloading operation is calculated and the yield is accumulated. There is a need. In that case, when the residual amount of a harvest has generate|occur|produced in the harvest tank after an unloading operation, the residual amount will become an error in the next yield measurement. In order to avoid this error, in one preferred embodiment of the present invention, at the end of the unloading operation for discharging the harvest from the harvest tank, the amount of the harvest stored in the harvest tank is measured as the tank remaining amount, and the measured The yield is corrected by the remaining amount.

In order to simply configure the measuring device for smoothly measuring the yield as described above, a method of measuring the load of the harvest stored in the harvest tank for each harvest tank may be employed. Such load measurement is possible and desirable in any state, such as driving, stopping, harvesting, or non-harvesting. Therefore, in such a suitable embodiment of this invention, the said harvest tank is a grain tank which stores a grain, and the said measuring instrument is a load measuring instrument which measures the load applied to a grain tank.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram explaining the basic principle of yield measurement and yield display in one Embodiment of this invention.
It is a side view of the combine which is one of specific embodiment of this invention.
It is a top view of the combine which is one of specific embodiment of this invention.
4 is a front view of the grain tank.
5 is a longitudinal front view of a load cell installation location of a grain tank.
6 is a perspective view of a load cell installation location of a grain tank.
Fig. 7 is a functional block diagram showing a functional part of a measurement display control system;
Fig. 8 is a chart diagram showing an example of a time-series flow of measurement, calculation, and display at the time of harvesting;
Fig. 9 is a chart showing an example of a time-series flow of measurement, calculation, and display at the time of harvesting;
Fig. 10 is a perspective view showing another embodiment of the peripheral structure of a load cell for measuring a grain tank;
Fig. 11 is a cross-sectional view showing another embodiment of the peripheral structure of a load cell for measuring a grain tank;
It is a schematic diagram explaining the basic principle of yield measurement and yield display in another embodiment of this invention.

Before describing a specific embodiment of a harvester according to the present invention, the basic principles of yield measurement and yield display that characterize one embodiment of the present invention will be described with reference to FIG. 1 . The harvester schematically shown in FIG. 1 is a harvester for harvesting crops such as rice, barley, and corn, and is equipped with a harvest tank 9 . In the harvesting operation, the crops harvested while traveling on the field are continuously stored in the harvest tank 9 . A measuring device 2 is provided for measuring the amount of the harvest (hereinafter also referred to as yield) stored in the harvest tank 9 . The type of the measuring device 2 and its measuring method are not particularly limited in the present application. However, by measuring the weight of the harvest tank 9 containing the harvest, and subtracting the weight of the harvest tank 9 from the weight, the weight of the harvest stored in the harvest tank 9 is calculated, and the calculated A measurement method that estimates yield from weight is preferred. The yield calculating unit 5 has a function of calculating the yield based on the measurement result output from the measuring device 2 .

This harvester performs a harvesting operation for one field while repeating storage into the harvest tank 9 and discharge from the harvest tank 9, and not only the yield stored in the harvest tank 9, but also It also has a function to calculate and display the current yield (yield during harvesting operation) from the field including the final total yield of . For this reason, at the time of discharging the harvest from the harvest tank 9 during the harvesting operation (also referred to as the unloading operation), the discharged yield is calculated, and the yield is used for integration to obtain the yield of the field unit.

Moreover, the state detector group 3 which includes various state detectors which detects the operating state of the said harvester is arrange|positioned in this harvester. A measurement situation board for judging, from the detection result of this state detector group 3, whether the measurement environment of the measurement device 2 is a high-reliability measurement situation that results in high-reliability measurement or a low-reliability measurement situation that results in low-reliability measurement A government 60 is provided. This detection result is related to each measurement result. The high-reliability measurement situation is obtained by a state in which the harvester is stopped, a state in which the horizontal posture is maintained, a state in which a load biased to the harvest tank 9 is not applied, etc. . Accordingly, the state detector group 3 includes a sensor or switch that detects the stationary state of the harvester, the horizontal posture of the harvester, the power transmission state to the harvesting operation equipment, the non-working state of the harvesting operation equipment, the state of the harvesting equipment, etc. This is included.

When the harvesting season arrives at the field to be harvested, field confirmation is performed, the field ID of the field is assigned to the harvest operation performed therefrom, and variables used in the yield calculation processing for each field unit are reset. When the harvesting operation while traveling is started, the measurement results from the measurement device 2 output at a predetermined measurement cycle are sequentially input to the yield calculation unit 5 . The yield calculation unit 5 calculates the yield based on the input measurement result. At that time, the determination result related to the corresponding measurement result leads to the calculated yield as it is. That is, in the yield calculation unit 5 , the first calculation process for calculating the yield so that the yield can be divided into a low-reliability yield and a high-reliability yield based on the input measurement result is firstly performed.

In addition, the high-reliability yield is divided into a non-integration yield and an integrated yield by the second calculation process. In this second calculation process, it is checked whether the calculated yield is calculated from the measurement result of the discharged crop in the unloading operation for discharging the crop from the crop tank 9 . From the detection result from the state detector group 3, it can be confirmed that the unloading operation|work is performed. Therefore, based on this confirmation information, it can be determined whether the measurement result input to the yield calculation part 5 is the measurement result before discharge|emission of the harvest which was stored in the unloaded harvest tank 9. The yield of the field unit is calculated|required by accumulating the yield of the storage harvest calculated every time the storage harvest is discharged (unloaded) from the harvest tank 9. As shown in FIG. In the second calculation processing, if the high-reliability yield is regarded as the measured yield accompanying the unloading operation, the high-reliability yield is used as the accumulating yield. The other high-reliability yields are non-accumulating yields, but represent the high-reliability yields stored in the harvest tank 9 at that time, and are used as the high-reliability current tank yields.

In the field integration process, the yield for integration is stored as a field integration value for every unloading operation, is integrated at any time, and the integrated value is output as a field integration value. This integrated field value is used as the field current yield, which is the amount of crops harvested from the field up to that point by adding it to the non-accumulating yield obtained each time when the harvesting operation in the field is continuing. In addition, the integrated field value when the harvesting operation in the field is completed is used as the total field yield, and is used for field management and the like.

Each yield calculated by the yield calculation unit 5 is sent to the display unit 7 and displayed on a display such as a liquid crystal panel of the display unit 7 according to a request. The display form may be either analog (graphic) display or digital (numerical) display. However, when the measurement cycle is short and the update interval of the displayed yield is short, the analog display is easier to see. The total yield of the package can be displayed along with the package name linked to the package ID. The total field yield is displayed as information indicating the yield up to the present point in the field during the harvesting operation in one field. The non-accumulating yield is displayed as information indicating the amount of the harvest stored in the harvest tank 9 during the harvesting operation.

As described above, although the high-reliability yield is used, the high-reliability yield is obtained only when the measurement environment is in a high-reliability measurement condition, and thus the yield is not always updated with the progress of the harvesting operation. Even if the reliability is low, the low-reliability yield is used when it is constantly updated and display of the yield is required. The generated low-reliability yield remains as it is, and can be displayed as information indicating the amount of the harvest stored in the harvest tank 9 during the harvesting operation. In addition, the yield obtained by adding the low-reliability yield to the current field yield (corresponding to the 'provisional field yield' according to the present invention) can also be displayed as information indicating the amount of crop harvested from the field up to that point.

In order to satisfy the demand for displaying information based on high-reliability yields and information based on low-reliability yields in a form that can be distinguished from those based on high-reliability yields, information based on high-reliability yields and information based on low-reliability yields are divided into separate areas. may be displayed, the display color may be changed, or an identifier (mark or illustration) capable of identifying them may be given to each yield indication. In the case of displaying them without distinction, information based on the high-reliability yield and the information based on the low-reliability yield can be displayed at the same display location in the same display form.

In particular, it is preferable to display the present tank yield and the like in the display unit 7 irrespective of whether it is based on a high-reliability yield or a low-reliability yield. As a result, even in a measurement environment in which a high-reliability yield is obtained, such as during driving accompanied by lateral oscillation, the yield at that time is displayed in order despite the low reliability, so that the driver can It is because the approximate amount (yield amount) of the crop can be grasped realistically.

In addition, the basic principle of yield measurement and yield display that characterizes another embodiment of the present invention will be described with reference to FIG. 12 . The harvester schematically shown in FIG. 12 is a harvester for harvesting crops such as rice, barley, and corn, and is equipped with a harvest tank 9 . In the harvesting operation, the crops harvested while traveling on the field are continuously stored in the harvest tank 9 . A measuring device 2 is provided for measuring the amount of the harvest (hereinafter also referred to as yield) stored in the harvest tank 9 . The type of the measuring device 2 and its measuring method are not particularly limited in the present application. However, by measuring the weight of the harvest tank 9 containing the harvest, and subtracting the weight of the harvest tank 9 from the weight, the weight of the harvest stored in the harvest tank 9 is calculated, and the calculated A measurement method that estimates yield from weight is preferred. The yield calculating unit 5 has a function of calculating the yield based on the measurement result output from the measuring device 2 .

In addition, a condition detector group 3 comprising various condition detectors for detecting the operating conditions of the harvester is arranged. A measurement situation board for judging, from the detection result of this state detector group 3, whether the measurement environment of the measurement device 2 is a high-reliability measurement situation that results in high-reliability measurement or a low-reliability measurement situation that results in low-reliability measurement A government 60 is provided. The high-reliability measurement situation is obtained by a state in which the harvester is stopped, a state in which the horizontal posture is maintained, a state in which a load biased to the harvest tank 9 is not applied, etc. . Accordingly, the state detector group 3 includes a sensor or switch that detects the stationary state of the harvester, the horizontal posture of the harvester, the power transmission state to the harvesting operation equipment, the non-working state of the harvesting operation equipment, the state of the harvesting equipment, etc. This is included.

When the harvester arrives at the field to be harvested and the harvesting operation while traveling is started, the measurement results from the measurement device 2 output at a predetermined measurement cycle are sequentially input to the yield calculation unit 5 . Whether each measurement result is in a high-reliability measurement condition or in a low-reliability measurement condition is determined by the measurement condition determination unit 60, and therefore the determination result is related to each measurement result. In the example shown in Fig. 12 , an identification code "A" is assigned to a determination result with a high reliability measurement condition, and "B" is attached to a determination result with a low reliability measurement condition.

The yield calculation unit 5 calculates a yield based on the received measurement result. At that time, the determination result related to the corresponding measurement result leads to the calculated yield as it is. That is, the yield calculated from the measurement result under the high-reliability measurement situation becomes the high-reliability yield and is given "A", and the yield calculated from the measurement result under the low-reliability measurement situation becomes the low-reliability yield, and "B" is given. .

Each yield calculated by the yield calculation unit 5 is sent to the display unit 7 irrespective of whether it is a high-reliability yield or a low-reliability yield. The display unit 7 displays the received harvest in a form that the driver can grasp using a display such as the liquid crystal panel 70 . The display form may be either analog (graphic) display or digital (numerical) display. However, if the measurement cycle is short and the update interval of the displayed yield is short, use an analog display such as a step bar graph or an area ratio graph. This becomes easier to see.

In order to satisfy the demand for displaying the high-reliability yield and the low-reliability yield in a form that can distinguish them, it is sufficient to display the high-reliability yield and the low-reliability yield in different areas. Alternatively, the display color of the high-reliability yield and the low-reliability yield may be changed, and an identifier (mark or illustration) capable of identifying them may be assigned to each yield indication. In the case of displaying the high-reliability yield and the low-reliability yield without distinction, the high-reliability yield and the low-reliability yield may be displayed at the same display location and in the same display form.

In this embodiment, the display unit 7 displays the yield regardless of whether the yield to be displayed is a high-reliability yield or a low-reliability yield. As a result, even in a measurement environment in which a high-reliability yield is obtained, such as during driving accompanied by lateral oscillation, the yield at that time is displayed in order despite the low reliability, so that the driver can The approximate amount (yield amount) of the crop can be grasped realistically. In addition, when the harvester is stopped for some reason and the harvest tank 9 is in a stable state suitable for measurement, a highly reliable yield display is performed. can figure out

In addition, the harvester is provided with a yield measurement switch (hereinafter, also referred to as a yield measurement SW) 32 for controlling each device of the harvester so that a high-reliability measurement situation occurs forcibly in the harvester. By turning ON the yield measurement SW 32 , the driver can display the highly reliable yield on the display unit 7 . That is, when the yield measurement SW 32 is operated ON, a yield measurement command, which is a high-reliability measurement condition appearance command, is generated. In response to this yield measurement command (high-reliability measurement condition emergence command), operations such as stopping the harvester body, shifting the harvester body to a horizontal position, shutting off power to the harvesting machine, and fixing the unloading machine at the storage position In the middle, a preset operation is executed. Since the yield calculated due to this yield measurement instruction can be related to that which is based on the measurement result under the high-reliability measurement situation, in the example shown in Fig. 12, the identification code " Z" is assigned. If the measurement environment that emerges in response to the yield measurement command is stricter than the measurement environment as the determination condition in the measurement condition determination unit 60, by operating the yield measurement SW 32 ON, the yield with the highest reliability is achieved. this will be calculated

Next, one of specific embodiment of the harvester which concerns on this invention is described using drawings. Figure 2 is a side view of a combine which is an example of a harvester, Figure 3 is a plan view. This combine is a self-detachment type combine, and the base frame 10 which comprises base|substrate is supported on the ground by a pair of crawler traveling apparatuses 11 on the left and right. While mowing the planting grain stem of the harvesting object, the harvesting part 12 which conveys the harvesting grain stem toward the body rear is arrange|positioned in the body front part, the control part 14 provided with the operation table 13 in the rear. Furthermore, the grain is discharged from the threshing apparatus 15 which threshes and sorts the harvesting grain stem, the grain tank (one type of harvest tank) 9 which stores the grains sorted and collect|recovered by the threshing apparatus 15, the grain tank 9 An unloading device 8, a rice straw discharging device 16, and the like are arranged for discharging rice straw. As shown in FIG. 3 , the operation table 13 is equipped with a liquid crystal panel 70 which is a component of a display unit 7 which is a control module for displaying various information together with a control lever and a shift lever.

The threshing apparatus 15 threshes the tip side of the harvesting grain stem conveyed from the harvesting|reaping part 12, and it is granulated by the sorting action by the sorting mechanism (not shown) with which the inside of the threshing apparatus 15 was equipped (not shown). It is sorted by dust such as grains and rice straw shavings, and the granulated grains are returned to the grain tank 9 as a crop. The rice straw discharge after the threshing treatment is shredded in the rice straw discharge treatment device 16 .

The grain conveyance mechanism for sending in a grain from the threshing apparatus 15 to the grain tank 9 is arrange|positioned so that FIG. 2 and FIG. 3 may understand. This grain conveying apparatus contains the 1st collection|recovery screw 17a provided in the bottom of the threshing apparatus 15, and the screw conveyor type grain-making apparatus 17b. The grain transversely conveyed by the 1st collection screw 17a is conveyed upward by the grain-raising apparatus 17b, and is sent into the grain tank 9 through the inlet formed in the upper part of the grain tank 9. In addition, although illustration is abbreviate|omitted, the rotary blade which blows a grain toward the inside of the grain tank 9 is provided in the upper end area|region of the grain-raising apparatus 17b, and the grain is stored in the most uniform horizontal distribution state in the grain tank 9. it is designed to do

The unloading apparatus 8 is the upper part of the bottom screw 81 provided in the bottom of the grain tank 9, the paper feed screw conveyor 82 provided in the gas rear part side of the grain tank 9, and the threshing apparatus 15 An extended lateral feed screw conveyor 83 is provided. The grains stored in the grain tank 9 are sent from the bottom screw 81 through the paper feed screw conveyor 82 to the transverse screw conveyor 83, and an outlet 84 formed at the tip of the transverse screw conveyor 83. ) from the outside. The paper feed screw conveyor 82 is configured to be rotatably operable around the longitudinal axis P2 by the operation of the electric motor 85 , and the transverse feed screw conveyor 83 is rotated around the horizontal axis P1 at the proximal end by the hydraulic cylinder 86 . It is configured to be able to swing up and down. Thereby, the discharge port 84 of the lateral feed screw conveyor 83 can be positioned in the position which can discharge a grain, etc. to the track for transport outside an apparatus. The transverse feed screw conveyor 83 is approximately horizontal, and the position and posture in which the whole of the transverse screw conveyor 83 is accommodated in the outer shape of the harvester in plan view is the home position [unloading device ( 8)], and in this home position, the lateral feed screw conveyor 83 is firmly held and fixed from below by the holding device 87 .

As shown in Fig. 4, the bottom of the grain tank 9 is inclined to each other so that the left bottom wall 91 and the right bottom wall 92 make a wedge shape facing downward, and the bottom screw 81 in its tip region. ) is placed. The left wall 93 and the right wall 94 connected to the upper ends of the left bottom wall 91 and the right bottom wall 92, respectively, are substantially upright. Upper ends of the left wall 93 and the right wall 94 are connected by a ceiling wall 95 . By the structure of such a grain tank 9, the grain thrown into the grain tank 9 flows downward toward the bottom screw 81.

Although not shown in detail, the cylindrical rocking|fluctuation support shaft part 90 is provided in the rear-end part of the grain tank 9 (refer FIG. 2). The rocking shaft center of this rocking|fluctuation support shaft part 90 coincides with the vertical axis P2, and, as shown by the dotted line of FIG. That is, the grain tank 9 protrudes outward and the working position which can receive a grain from the grain cultivation apparatus 17b, and the front part side is spaced apart from the threshing apparatus 15, and the rear of the control part 14 and a threshing device. It is possible to change the position over the maintenance position that opens the right side of (15).

The load cell 20 which comprises the measuring instrument 2 which outputs the weight of the grain stored in the grain tank 9 as a measurement result is equipped with this combine in order to calculate|require the yield in a field|field. This load cell 20 is installed in the state supported by the base frame 10 so that the weight of the grain tank 9 located in a working position may be supported and the weight may be measured. As the grain tank 9 rotates from the maintenance position toward the working position, the weight measurement position Z (see Fig. ) is provided with a support guide body 21 to guide.

4 and 5, the lower end support portion of the grain tank 9 guided by the support guide 21 is rotatably supported around the horizontal axis and is a roller capable of rolling on the support guide 21. It consists of (22). With respect to the support member 97 provided in the front side lower part of the grain tank 9, this roller 22 rotates by the transverse direction support shaft 22a in the state which protrudes downward rather than the lower end of the support member 97. possibly supported. In addition, this roller 22 is a state located below in the substantially central part of the left-right width direction of the grain tank 9 when it sees from the body front-back direction of the grain tank 9, when the grain tank 9 is in a working position is installed with Moreover, the support member 97 is being fixed to the lower end part of the front side wall 96 of the grain tank 9, as shown in FIG.

As shown in FIGS. 5 and 6 , the support guide 21 includes a load-bearing state loaded from above with respect to the weight detection unit 20a provided on the upper portion of the load cell 20 and the upper side of the load cell 20 . It is installed so that it can be switched to the retracted state which retracts outward so as to open. That is, it is fixed to the base frame 10 via the bracket 10a. The base end of the support guide body 21 is supported by the bracket 10a so as to be rotatable around the front and rear axis P4 of the body.

When the support guide body 21 is switched to the load-bearing state, as shown by the solid line in FIG. 5 , the guide mounting surface 21a of the support guide body 21 is in a state located inside the body rather than the base end, and the support guide When the sieve 21 is switched to a retracted state, as shown by the imaginary line of FIG. 5, the guide mounting surface 21a will be located outside a body rather than a base end part.

As shown in Fig. 5, the guide loading surface 21a is in a state switched to the load-bearing state, and as the grain tank 9 rotates from the maintenance position toward the working position, the roller 22 is guided by rolling movement. ) is formed in an inclined posture so as to be in an inclined state at a gentle inclination angle so as to be displaced upward.

It is located on the lower side of the support guide body 21 that has been switched to the load-bearing state and supports the support guide body 21 by the weight detection unit 20a, and the body part 20b of the load cell 20 is loaded and supported. The load cell 20 is installed in the base frame 10 in a state of being

As described above, since the load on the gas front side of the grain tank 9 in the working position is supported by the load cell 20 through the support guide body 21, the grain tank 9 by the load cell 20 The weight of the stored grain can be measured. In addition, in the rocking|fluctuation support shaft part 90 which supports the grain tank 9 to the base frame 10 so that it can rock|fluctuate, it is flexible (not shown) so that the front end side of the grain tank 9 can tilt only slightly in the up-down direction. This is formed, the load of the grain tank 9 can be supported with the load cell 20 using the melt|foil, and the weight of a storage grain becomes measurable.

The measurement result (measured value) of the load cell 20 may cause an error due to the inclination of the base of the combine, but the measurement error resulting from such inclination of the base is corrected. This is the load cell 20 using, not shown, the detection values from the left and right inclination angle sensors for detecting the left and right inclination angles of the aircraft, the front and rear inclination angle sensors for detecting the front and rear inclination angles, and the correction arithmetic formula obtained in advance through experiments, etc. of the measurement result is corrected. The storage amount (yield amount) of the grain in the grain tank 9, which is gradually changed as the mowing operation is performed, is measured by the load cell 20, and the yield calculated based on the measurement result is detailed below. It is displayed on the liquid crystal panel 70 by the method described.

7 shows a function centering on the control unit 100 in the control system for measuring and displaying the yield. This control system utilizes the principles of yield measurement and yield display described in FIGS. 1 and 12 . The measurement result of the load cell 20, the operation input data from the operation input device 30, and the detection result from the state detector group 3 are input to the control unit 100 which becomes the core of this control. The state detector group 3 is a generic term for sensors and switches (abbreviated as SW) that detect the state of the devices constituting the combine. The state detector group 3 includes, for example, a speed detector for detecting a stop of the combine, a detector for detecting a shift to a horizontal posture that is a home position of a horizontal control mechanism of a vehicle body equipped in the combine, a harvesting unit 12 and A detector that detects the state of the clutch that controls power transmission to the threshing apparatus 15, the home position of the unloading apparatus 8 in a state held and fixed by the retaining apparatus 87 of the lateral feed screw conveyor 83 (unloading apparatus) (8) storage position] is included. The operation input device 30 is a device operated by a driver (operator) to give a control command to the control system, and includes a work start SW 31 , a yield measurement SW 32 , and the like.

When the work start SW 31 is operated after determining the field when arriving at the field to be harvested, a command for triggering the initial setting processing of the harvest operation or the like is given. This initial setting process also includes the resetting of various variables and control parameters used in the control unit 100 , and storage and transmission of data to be stored (such as the yield of a packaging unit). A command to operate the yield measurement SW 32 during the harvesting operation or at the end of the harvesting operation to drive various operating devices so that a high-reliability measurement situation appears, and to execute a yield measurement in the high-reliability measurement situation that has emerged This is given In addition, this operation input device 30 can be integrally built through a touch panel equipped on the operation table 13 .

The control unit 100 includes a yield calculation unit 5 , a measurement status determination unit 60 , and a display data generation unit 71 . The measurement situation determination unit 60 determines whether the measurement environment of the load cell 20 is a high-reliability measurement situation that results in high-reliability measurement, or a low-reliability measurement, based on the detection result from the state detector group 3 . It is determined whether a low-reliability measurement condition is present, and the determination result is output. The yield calculation unit 5 calculates a yield, which is a high-reliability yield, from the measurement result of the load cell 20 under a high-reliability measurement situation, and calculates the yield, which is a high-reliability yield, from the measurement result of the load cell 20 under a low-reliability measurement situation. Calculate the yield, which is the yield.

The yield calculation unit 5 includes a first calculation unit 51 , a second calculation unit 52 , and an integration unit 53 . The first calculation unit 51 calculates the yield from the measurement result of the load cell 20 , but at that time, the calculated yield is divided into a low-reliability yield and a high-reliability yield based on the determination result of the measurement status determination unit 60 . do. The second calculation unit 52 divides the high-reliability yield calculated by the first calculation unit 51 into a non-integration yield and a cumulative yield. In the harvesting operation in one field, when grain is harvested multiple times the capacity of the grain tank 9, in order to calculate the yield of this field, each time the grain tank 9 is unloaded (grain discharge), Measure the grains that have been stored until then, and you must integrate the yield calculated from the results of the positioning. The high-reliability yield used for this integration is the cumulative yield, and the high-reliability yield obtained at a point in time that is not related to other unloading operations is the non-integrated yield. The second calculation unit 52 can determine, based on the determination result from the measurement status determination unit 60 , whether or not the received high-reliability yield is based on a measurement result performed in conjunction with the unloading operation. The crop yield for integration is transmitted to the integration unit 53, and is stored in the memory as a field integration value for calculating the yield of a field unit, and, if necessary, is integrated with the previous integration yield. Since the non-accumulating yield represents the high-reliability harvest quantity stored in the grain tank 9 at that time, it can be used in order to display as a high-reliability current tank yield. The accumulating unit 53 integrates the sequentially received accumulating yields, and outputs the accumulating yields for each packaging unit. The total of the total field values after the completion of the harvesting operation in one field becomes the field total yield, and is recorded in relation to the field ID. In the stage before the harvesting operation, the total field value is the field yield obtained up to that point, and it is added to the non-accumulating yield or low-reliability yield, which is the high-reliability yield calculated after that, and used for display as the field current yield.

The display data generating unit 71 constitutes the display unit 7 together with the liquid crystal panel 70 . The display data generation unit 71 is based on the respective yields received from the yield calculation unit 5, the display data of the tank current yield indicating the amount of grains stored in the grain tank 9, the current yield of the packaging unit, or the packaging Generate display data of field yields representing total yields. As illustrated in FIG. 3 , in the liquid crystal panel 70 , according to the selection by the driver, the current yield in the tank, the current yield in the packaging unit, and the total yield in the field are calculated by a food measuring instrument (not shown), harvested grains. The average protein, average moisture, etc. are also displayed. In addition, although the current yield of a field unit and the total field yield are displayed with numerical values, the present tank yield is displayed in a hierarchical display like a bar graph so that it is easy to understand the ratio to the total volume of the grain tank 9.

An example of the time-series flow of measurement, calculation, and display in the above-described control system will be described with reference to FIGS. 8 and 9 . Fig. 8 shows the flow from the start of the work in the pavement A to the first unloading operation, and Fig. 9 is the total yield in the pavement A through further unloading operations (usually multiple unloading operations). and the flow until shifting to the next pavement B is shown.

First, at a time point T11, the field A to be harvested is checked, the work start SW 31 is operated, the work conditions etc. are set, and the harvesting work is started. In addition, in this embodiment, the work start SW 31 is combined with the display switch SW for switching the screen display in the liquid crystal panel 70, and when this display switch SW is long pressed, the work start SW The function as (31) is activated. In addition, in order to simplify the packaging confirmation operation, a map of packaging is displayed on the liquid crystal panel 70 based on the operation of the operation start SW 31 . From this display screen, since the attribute data of the said package is displayed by touching the relevant package, the package used as a work object can be confirmed without fail. In addition, initialization processing including initialization (reset) of various buffers and temporary storage memories is executed by operation of the job start SW 31 . At that time, the mode in which the various display values in the liquid crystal panel 70 as illustrated in FIG. 3 are "0" to the initial value is displayed so that the driver can visually recognize the result of this initialization process.

A measurement value is output by weight measurement in a predetermined measurement period by the load cell 20 during harvesting driving. This measured value is indicated by "a" with a subscript in FIG. 8, and the subscript is an ordinal number indicating a time series. Subscripts that follow are also ordinal numbers representing time series. The measurement timing is indicated by a white circle, and the number on each white circle is a typical numerical value indicating the measured value. The measurement result used in the calculation process in the yield calculation unit 5 is a measurement value as a representative value derived from a filter function using the measurement value obtained at a predetermined time interval as a parameter, and is indicated by a subscript "A" in the figure. have. The simplest of its filter functions are the arithmetic mean or the moving average. In addition, the timing at which this measurement result is obtained is shown by the black circle, and the number attached to each black circle is a numerical value which shows the content. The yield calculated by the yield calculation unit 5 from this measurement result is indicated by a subscript "Q". Again, the numbers attached to the periphery of "Q" in the drawing indicate the yield, but here, for convenience, the same numerical value as the measured value is used. This yield is treated as a low-reliability yield, but is used as a display value (indicated by K in the figure) indicating the yield in the tank of the liquid crystal panel 70 . Moreover, it is used as a display value which shows the field yield. This displayed value is indicated by H (numerical value) in the drawing, this numerical value is a package identification number, and S is used as a variable for integration. That is, H (numerical value) = S + K.

Since the yield in the tank displayed on the liquid crystal panel 70 is a low-reliability yield, it is assumed that the yield measurement SW 32 is operated at the time T12 in order to obtain a high-reliability yield. Thereby, a combine stops and returns to a horizontal attitude|position, and a harvesting apparatus becomes a non-work state. The yield calculated from the measurement results obtained in this situation (represented by a large white circle and A10 in the drawing) becomes a high-reliability yield (Q10 in the drawing).

In addition, one of the important conditions for more reliable yield measurement is that the lateral feed screw conveyor 83 of the unloading device 8 is accommodated in the pedestal of the holding device 87 so that a weight is reliably applied thereto. When it is not accommodated reliably, the weight of the grain tank 9 cannot be measured correctly, As a result, the calculated yield becomes inaccurate. For this reason, when the yield measurement SW 32 is operated, the descending instruction|command which descend|falls the lateral feed screw conveyor 83 to the pedestal of the holding|maintenance apparatus 87 is given. The measurement result after a predetermined time has elapsed after the descent command is issued is used for high-reliability calculation of the yield.

An unloading operation is performed at time point T13 which became the state full of the grain tank 9. At the time of unloading work, the combine stops, returns to a horizontal posture, and since a harvesting apparatus becomes a non-work state, at this timing, the measurement of the grain stored in the grain tank 9 is performed, and in a high-reliability measurement situation As a result of the measurement, A20 is obtained. In addition, a high-reliability yield Q20 is calculated from the measurement result A20. In addition, Q20 is substituted for S, which is a variable for integration. After that, when the harvesting operation is started again and the point reliability yield Q21 is obtained, it is displayed as the yield in the tank and is added to Q20, the S value of the integration variable, and the field yield, which is the value of H(1) (according to the present invention) (corresponding to 'tentative field yield').

At time point T14, when the harvesting operation in the field A is completed, the last unloading operation of discharging the grains stored in the grain tank 9 is performed, but prior to that, measurement in a high-reliability measurement situation is performed. While the measurement result (indicated by a large white circle and A30 in the figure) is obtained, a high-reliability yield (Q30 in the figure) is also calculated. By adding this last calculated high-reliability yield to the totalized so far, the total yield in this field A is calculated. In this example, the total yield is H(1) = Q20 + ... +Q30, recorded as the total yield of field A.

The combine shifts from the field A to the field B at the time point T21, and starts the harvesting operation again, and the same grain measurement, yield calculation, and control of the yield display are performed.

Although it does not contact by description of FIG. 8 and FIG. 9, when the residual amount of a grain has generate|occur|produced in the grain tank 9 after an unloading operation, the residual amount will become the error in the next yield measurement. In order to avoid this error, the control unit 100 is equipped with the function which detects that a residual quantity exists in the grain tank 9 from a measurement result, and notifies this, and performs the warning which accelerates|discharges a residual quantity. In addition, the accumulator 53 is provided with a function of calculating the estimated residual amount as an exception processing when the residual amount is not discharged even though it is a warning, and correcting the estimated residual amount when calculating the field yield.

Since the yield calculation performed prior to the unloading operation is necessary for calculating the field yield, the operation of the yield measurement SW 32 to perform the yield calculation is built into the unloading operation procedure. However, some drivers feel that it is cumbersome to calculate the yield after operating the yield measuring SW 32 to completely bring up the high-reliability measurement situation. For this reason, you may be provided with the simple mode which omits operation of such yield measurement SW32, and performs a yield measurement automatically before grain discharge|discharge only by simply operating an unloading operation.

[Other embodiment]

(1) In the above-mentioned embodiment, the weight measurement of the grain tank 9 makes one end side a rocking|fluctuation fulcrum and the other end side as a floating structure, and the load cell 20 between the lower end of the floating structure and the base frame 10. ) was adopted, but instead of this, the grain tank 9 is supported at a plurality of supporting points with respect to the base frame 10, and a structure in which the load cell 20 is disposed at the supporting points may be employed.

(2) In addition, as a measuring instrument (2) for calculating the yield of grains stored in the grain tank (9), in addition to measuring the weight including the grain tank (9), directly measuring the weight or volume of grains A measuring instrument may be employed.

(3) The division of the functional units shown in FIG. 7 is an example, the integration of each functional unit, but the division of each functional unit is arbitrary. Any configuration may be used as long as the control functions of the present invention are realized, and these functions may be realized by hardware or software or both.

(4) Another embodiment of the structure for measuring the weight of the grain tank 9 using the load cell 20 for calculating the yield is shown in FIGS. 10 and 11 . 10 : is a perspective view of load cell 20 vicinity in the middle of the transition of the grain tank 9 from a maintenance position to a work position. 11 : is sectional drawing of the load cell 20 vicinity when the grain tank 9 returns to a working position. Also in this other embodiment, the load cell 20 is provided on the base frame 10 . The support guide piece 121 which guides the lower part of the grain tank 9 toward the weight detection part 20a of the load cell 20 is arrange|positioned so that the load cell 20 may be covered. The support guide piece 121 supports and supports the lower end of the grain tank 9 as the grain tank 9 rotates from the maintenance position toward the working position, while supporting the grain tank 9 of the load cell 20. It guides to the upper direction of the weight detection part 20a, and therefore, the weight measurement of the grain tank 9 by the load cell 20 is performed. The inclined surface is formed in the support guide piece 121 so that the grain tank 9 may rotate from a maintenance position to a work position, and may guide while raising the grain tank 9. A flat surface further extends from this inclined surface, and the tip located at the end is a downwardly inclined inclined surface.

The support guide piece 121 has a skirt portion, and is pivoted by a pivot pin so as to be able to swing around a body forward and backward axis P4 along the body forward and backward directions with respect to a bracket 110a fixed to the body frame 10 . The size of the through hole formed in the bracket 110a for inserting the pivot pin through the pivot pin is larger than the size of the pivot pin in the vertical direction. As a result, a flex is created between the pivot pin and the through hole. With this flexibility, the support guide piece 121 can be displaced up and down within a predetermined range with respect to the front and rear axis P4 of the body. That is, the support guide piece 121 is in a load-bearing state positioned to cover the weight detection unit 20a of the load cell 20 from above, and in a retracted state in which it retracts upward and outward to open the upper side of the load cell 20 . switchable. In addition, with this structure, when the upper side of the load cell 20 is opened, it becomes possible to detach the load cell 20 without requiring the detachment operation of the support guide piece 121 . Moreover, in this other embodiment, as shown in FIG. 11, the weight detection part 20a of the load cell 20 is covered with the cap member 20A formed in the downward cylindrical shape from above. Therefore, in the working position of the grain tank 9, the upper surface of the cap member 20A is in contact with the lower surface of the support guide piece 121, and the lower surface of the cap member 20A is on the pressure receiving surface of the weight detection part 20a. contact from above. That is, the load on the front side of the grain tank 9 is supported by the load cell 20 via the support guide piece 121 and the cap member 20A.

Next, the structure for the load of the front side of the grain tank 9 to be applied to the support guide piece 121 in a working position is demonstrated. An angle-shaped support 123 is installed in the lower portion of the grain tank 9, and the roller 22 is rotatably supported on the vertical wall 123a of this support 123 through a lateral support shaft 22a. has been The lower end of the roller 22 is positioned below the lower surface of the horizontal wall 123b of the support 123 so that the roller 22 is guided in contact with the support guide piece 121 . For this reason, in a state in which the roller 22 is guided by the support guide piece 121 , the horizontal wall 123b of the support 123 does not contact the support guide piece 121 , and the roller 22 is guided by the support guide piece 121 . The horizontal wall 123b of the support 123 comes into surface contact with the flat surface of the support guide piece 121 only by detaching from the front end of the piece 121 . In order to ensure this surface contact, the support stand 123 is provided in the grain tank 9 so that height adjustment is possible via an adjust mechanism. As shown in FIG. 11, the adjust mechanism presses an upper end with respect to the fixing bolt which fixes the support stand 123 to the grain tank 9 using a long hole, and the lower surface of the grain tank 9, for example. It can be configured simply by combining the adjust bolts.

Moreover, the auxiliary|assistant guide body 190 is provided in the lower part of the grain tank 9 adjacent to the support stand 123. As shown in FIG. The auxiliary guide body 190 is a curved member provided on the front surface of the support member 97 , and includes an auxiliary roller 191 . When the grain tank 9 moves from a maintenance position to a work position, the auxiliary roller 191 rolls along the inclined surface of the inclination stand 111 provided in the base frame 10. As shown in FIG. The auxiliary guide body 190 and the ramp 111 are designed to have a mutual positional relationship in which the auxiliary roller 191 also separates the ramp 111 when the roller 22 is removed through the support guide piece 121 . That is, in the working position of the grain tank 9, the roller 22 and the auxiliary roller 191 all are in a state floating in the air, and the lower surface of the horizontal wall 123b of the support stand 123 and the support guide piece 121 ), the weight of the grain tank 9 is measured by the load cell 20 in a stable state in which the flat surface is in surface contact.

The present invention is applicable to a corn harvester or other crop harvesters in addition to the above-mentioned combine.

2: measuring instrument
20: load cell
3: state detector group
30: operation input device
31: work start SW
32: yield measurement SW
5: Yield Calculator
51: first calculation unit
52: second calculation unit
53: accumulator
60: measurement status determination unit
7: display part
70: liquid crystal panel
71: display data generation unit
8: unloading device
9: Grain tank (harvest tank)
100: control unit

Claims (21)

A harvest tank for temporarily storing the harvested harvest while driving on the pavement;
a measuring device for measuring the amount of harvest stored in the harvest tank;
a measurement condition determination unit that determines whether the measurement environment of the measuring device is a high-reliability measurement condition that results in high-reliability measurement or a low-reliability measurement condition that results in low-reliability measurement;
a yield calculation unit configured to calculate the integrated yield of the field based on the high reliability yield while setting the yield calculated from the measurement result of the measuring device under the high reliability measurement condition as a high reliability yield;
a display unit configured to display a current yield, which is a stored yield in the harvest tank, calculated from the measurement result of the measuring device, and the accumulated yield;
The display unit displays a provisional field yield that is the sum of the current yield and the integrated yield, harvester. The harvester of claim 1 , wherein the integrated yield is calculated by integrating the high-reliability yield calculated for each unloading operation of discharging the harvest from the harvest tank. The harvester according to claim 1 or 2, wherein the integrated yield is reset based on a work start command input by an operator at the start of the harvesting operation of each field. 4. The method according to claim 3, wherein the work start instruction includes identification data of a field to be harvested, and the identification data is related to a total yield that is a final integrated yield for each field calculated by the yield calculation unit. harvest. The harvester according to claim 1 or 2, wherein the measurement condition determination unit determines the high reliability measurement condition by detecting a stop condition for an unloading operation of discharging a harvest from the harvest tank. The method according to claim 5, wherein the measurement status determination unit is configured to achieve any or all of stopping of the harvester car body, shifting the harvester car body to a horizontal posture, shutting off power to the harvesting work equipment, and fixing the unloading work equipment in the stowed position. Through that, to determine the high-reliability measurement situation, the harvester. The harvester according to claim 1 or 2, wherein the harvester is controlled such that the high-reliability measurement situation emerges in response to a yield measurement command input by an operator. The harvester according to claim 7, wherein, in response to the yield measurement command, any one or all of stopping the working machine, shifting the body of the harvester to a horizontal position, shutting off power to the machine for harvesting work, and fixing the machine for unloading work is executed. . 3. The method according to claim 1 or 2, wherein at the end of the unloading operation for discharging the harvest from the harvest tank, the amount of the harvest stored in the harvest tank is measured as the remaining amount of the tank, and the amount of the harvest is Revised harvester. The harvester according to claim 1 or 2, wherein the harvest tank is a grain tank for storing grain, and the measuring device is a load measuring device for measuring a load applied to the grain tank. A harvest tank for temporarily storing the harvested harvest while driving;
a measuring device for measuring the amount of harvest stored in the harvest tank;
a measurement condition determination unit that determines whether the measurement environment of the measuring device is a high-reliability measurement condition that results in high-reliability measurement or a low-reliability measurement condition that results in low-reliability measurement;
A yield calculation unit that calculates a yield that is a high-reliability yield from the measurement result of the measuring device under the high-reliability measurement situation, and calculates a yield that is a low-reliability yield from the measurement result of the measuring device under the low-reliability measurement situation Wow,
and a display unit for displaying the yield;
The yield calculation unit is controlled so that the high reliability measurement situation emerges in response to a yield measurement command input by an operator by calculating the high reliability yield or the low reliability yield over time,
When an unloading operation of discharging a harvest from the harvest tank is operated without input of the yield measurement command by an operator, the harvester is automatically calculated for the yield. The harvester of claim 11 , wherein the high-reliability yield and the low-reliability yield are displayed at the same display location. The harvester of claim 11 or 12, wherein the high-reliability yield and the low-reliability yield are displayed in the same display form. The harvester of claim 11 or 12, wherein the high-reliability yield and the low-reliability yield are displayed in different display formats. The harvester according to claim 11 or 12, wherein the measurement condition determination unit determines the high reliability measurement condition by detecting a stopped condition for an unloading operation of discharging a harvest from the harvest tank. 16. The method according to claim 15, wherein the measurement status determination unit implements any one or all of stopping the harvester body, shifting the harvester body to a horizontal posture, shutting off power to the harvesting machine, and fixing the unloading machine at the stowed position. Through, to determine the high-reliability measurement situation, harvester. delete 13. The method according to claim 11 or 12, wherein in response to the command for measuring the yield, the vehicle body of the harvester is stopped, the vehicle body of the harvester is shifted to a horizontal position, power is cut off to the equipment for harvesting operation, and the equipment for unloading operation is being fixed in the stowed position. Harvester, in which one or all of them are practiced. delete 13. The method according to claim 11 or 12, wherein at the end of the unloading operation for discharging the harvest from the harvest tank, the amount of the harvest stored in the harvest tank is measured as a tank residual amount, and the harvest is Revised harvester. The harvester according to claim 11 or 12, wherein the harvest tank is a grain tank for storing grain, and the meter is a load meter for measuring a load applied to the grain tank.

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