JP2016192975A - combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a combine capable of evaluating correctly yield in each block in a farm field is desired.SOLUTION: A combine includes: a taste measurement vessel 33 having a taste receiving port 32b for receiving at least a part of grains supplied into a grain tank 15, a taste discharge port for discharging the received grains, and a taste shutter 35 for opening/closing the taste discharge port; and a taste measurement part for measuring a taste value of the grains held in the taste measurement vessel 33 in the state where the taste shutter 35 is closed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a combine that harvests cereal grains from a field while traveling, threshs the harvested cereal grains, and stores the obtained cereal grains in a grain tank.

  There has been proposed a combine that performs weight measurement and moisture measurement of a grain stored in a grain tank and outputs the harvested grain as harvest information. For example, in the combine by patent document 1, the load cell which detects the load of the moisture measuring apparatus and the grain tank which take in a part of grain supplied to a grain tank and measures the moisture content is provided. . In harvesting with this combine, the harvesting area is calculated from the running speed, running time, and cutting width, and the increase in grain weight per cutting area is calculated repeatedly, and the yield distribution of the plot unit in the field is output. Is done. However, when measuring the increase in grain weight from the load on the grain tank, the weight of the grain is lighter than the weight of the grain tank itself, so the small increase in grain weight is accurately measured. In order to realize a measuring mechanism that performs this, a large cost burden is involved. If the small increase in the grain weight cannot be measured accurately, it will be difficult to evaluate the poor harvesting of the small sections of the field due to factors such as the daylight of the field and the variation in fertilization.

  Japanese Patent Application Laid-Open No. 2004-228688 discloses a combine equipped with a yield detection device that measures the yield per unit time of grain for adjustment control of the sorting device. This yield detection device is composed of a cylinder, a shutter that opens and closes the lower opening of the cylinder, and a pressure-sensitive sensor provided inside the cylinder, and measures the time for storing the grain up to the position of the pressure-sensitive sensor. The yield per unit time of grain is calculated from the measurement time. In this combine, only the sorting device is controlled so that the larger the amount of grain per unit time passing through the sorting device, the greater the processing amount of the sorting device. The traveling speed of the combine, which causes the yield per unit time to change regardless of the actual state), is not considered.

Japanese Patent Laying-Open No. 2006-081488 (FIGS. 5, 14, and 17) JP-A-3-47014 (page 3, lower left column, line 6-page 4, upper right column, line 20, line 1)

  In view of the above situation, the harvest evaluation of each section in the field is accurately performed in the combine that harvests the cereal from the field while traveling according to the present invention, threshs the harvested cereal, and stores the obtained cereal in the grain tank. There is a need for techniques that can be performed.

  The combine according to the present invention, which harvests cereals from a field while traveling, threshs the harvested cereals, and stores the obtained grains in a grain tank, is at least part of the grains supplied to the grain tank A yield measuring container having a yield receiving port for receiving the grain, a yield discharging port for discharging the received grain, and a yield shutter for opening and closing the yield discharging port, and a predetermined amount in the yield measuring container when the yield shutter is closed A yield measuring unit that detects that a volume of grain has been stored and outputs a detection signal, a time calculation unit that calculates a storage time required to store the predetermined volume of grain based on the detection signal, and traveling A yield calculation unit that calculates a unit travel yield, which is a yield per unit travel, based on the speed and the storage time.

  According to this configuration, since the time (storage time) until the grain supplied to the grain tank reaches a predetermined amount (volume) defined in the yield measuring container is calculated, this time and the traveling of the combine Based on the speed, the travel distance that can harvest a predetermined volume of grain, in other words, the unit travel yield, which is the yield per unit travel, is calculated. In other words, the yield in the small section of the field is obtained. In this case, if the yield receiving port of the yield measuring container can only partially accept the grain supplied to the grain tank, the estimated storage time can be obtained if the acceptable ratio is known in advance. Is adjusted based on the ratio, and the actual unit travel yield can be obtained. By adopting such a calculation method based on the ratio between the amount supplied to the grain tank and the acceptable amount, the grain storage capacity of the yield measuring container can be reduced, so that the structure can be made compact. Convenient. In addition, the small grain storage volume used for calculating the unit running yield means that the weight to be measured is small, compared to the conventional technology that measures the weight of the stored grain including the grain tank. Therefore, the conditions required for accurate measurement are relaxed. Furthermore, since the yield is derived from the volume occupied by the grains stored per hour, it is possible to avoid errors due to adhesion of raindrops and the like that occur during weight measurement.

  In addition to yield, taste values such as moisture and protein are also important for information on harvested grains such as rice and wheat. If this taste value can be measured for each minute section of the field, the influence of the sunlight, fertilization state, etc. on the taste value can be evaluated, and fine farming becomes possible. In order to realize the measurement of the taste value for each micro-compartment, so-called taste measurement, with a simple structure as much as possible, in one preferred embodiment of the present invention, the taste release that releases the accepted grain through the yield outlet is provided. A taste measurement container having an exit and a taste shutter that opens and closes the taste release port, and a taste measurement unit that measures the taste value of the grains held in the taste measurement container when the taste shutter is closed are provided. ing. In this configuration, since the yield measurement container is used as a grain receiving unit for the taste measurement container, the configuration of the taste measurement container can be simplified.

  In particular, if at least part of the grain of a predetermined volume used for calculating the unit running yield is used for taste measurement by the taste measuring unit, it is used for the grain and taste measurement used for measuring the unit running yield. The grain is surely harvested in the same micro-compartment. Therefore, by recording each measurement data in relation to each other and recording it as one data set, data on the yield and taste for each micro-section of the field can be reliably accumulated without being separated.

  In the combine, there is a time difference between the time when the grain to be measured is cut and the time when the yield and taste are measured. That is, the travel position of the combine at the time of measurement is not the position where the grain of the measurement is harvested, but is shifted by the distance traveled during that time difference. In order to avoid this problem, in one of the preferred embodiments of the present invention, a process from the time when the culm is detected by the stock sensor that detects the culm to be harvested first until the grain reaches the yield measuring container. Based on the time and the traveling speed, the data set and the specific position are matched so that there is no deviation.

  In normal taste measurement, it is necessary to keep the grains under measurement stationary for a certain period of time. For this reason, when the grain stored in the yield measurement container is used as it is for the next process of taste measurement, the storage of the grain for the measurement of the unit running yield is required during the taste measurement. Efficient to do. At this time, if the yield measuring container has a volume capable of storing the grains supplied to the yield receiving port during the measurement time of the taste measuring container, the yield measuring container becomes full. Convenient because the grain never spills down.

  When both the yield measurement container and the taste measurement container are equipped, the structure is simplified and it is advantageous if the yield measurement container and the taste measurement container are composed of a cylindrical body that is coaxially and integrally formed. .

  One form of unit travel yield calculated by the present invention is the yield per unit area. By sequentially calculating and displaying or recording the yield per unit area defined by the harvesting width and the minute travel distance of the combine, it is possible to grasp the change in the yield due to the travel of the combine, that is, the change in the field position and the change in the yield. can do. In particular, by recording the traveling track of the combine at that time, it is possible to evaluate the yield at an arbitrary position in the field.

  Another form of unit travel yield calculated by the present invention is the yield per unit section divided from the field. In particular, if one side of the unit section is used as the harvesting width of the combine and the travel distance for obtaining the unit travel yield is set as the other side of the unit section, the calculated unit travel yield can be used as the yield per unit section. This is convenient for data processing.

It is a schematic diagram explaining the basic composition of the present invention. It is a side view which shows one of the embodiment of the combine of this invention. FIG. 3 is a plan view of the combine according to FIG. 2. It is a schematic diagram of the yield measurement part and taste measurement part which were mounted in the combine by FIG. It is a functional block diagram for demonstrating the harvest information generation in the control apparatus mounted in the combine by FIG. It is a diagram which shows the time chart and movement of a shutter in a yield measurement. It is explanatory drawing of the yield calculation per hour. It is explanatory drawing of the yield calculation of a division unit. It is a schematic diagram which shows another embodiment of a yield measuring part and a taste measuring part.

Before describing a specific embodiment of a combine according to the present invention, the basic principle characterizing the present invention will be described with reference to FIG.
In the example of FIG. 1, the combine 1 harvests wheat grains and rice grains while traveling in the field, and the threshed grain is stored in the grain tank 15 mounted on the combine 1. At this time, in this combine 1, the amount of the grain supplied to the grain tank 15 over time, that is, the yield is measured. Furthermore, the taste (moisture, protein, etc.) of the grain can also be measured.

  In order to measure the yield of the grain, the grain tank 15 has a yield receiving port 32a for receiving at least a part of the grain supplied to the grain tank, and a yield releasing port 32b for discharging the accepted kernel. A yield measuring container 32 having a yield shutter 34 for opening and closing the yield discharge port 32b is provided. The yield measuring container 32 is provided with a yield receiving port 32a so as to face the flow of the grains continuously sent from the threshing device to the grain tank 15 during the cutting operation. The yield shutter 34 can be switched between a closed posture for closing the yield discharge port 32b formed at a position (here, vertical position in the vertical direction) facing the yield receiving port 32a of the yield measuring container 32 and a posture for opening it. It is. Therefore, in the closed posture of the yield shutter 34, the grains are stored in the yield measurement container 32 over time. The yield measurement container 32 includes a yield measurement unit that detects that a predetermined volume of grain has been stored in the yield measurement container 32 and outputs an appropriate amount detection signal indicating storage of the predetermined volume of grain. The time from when the yield shutter 34 is switched to the closed posture until the detection signal is output is the storage time required for storing a predetermined volume of grain. If the storage time is calculated and the traveling speed of the combine 1 at that time is acquired, the unit traveling yield, which is the yield per unit traveling, is calculated based on the traveling speed and the storage time. By repeating the calculation of the unit travel yield during the harvesting travel of the combine 1, the unit travel yield can be assigned corresponding to the travel position of the combine 1. Based on the unit travel yield assigned to this travel position, the yield for each predetermined travel distance, or the yield for each predetermined section obtained by dividing the field into a predetermined size, that is, the yield distribution in the field can be obtained. it can.

  In the example of FIG. 1, a taste measuring container 33 is provided below the yield measuring container 32 in the grain flow direction. The taste measurement container 33 forms a taste discharge port 32c that is opened and closed by the taste shutter 35 with the yield discharge port 32b as a receiving port. If the taste shutter 35 is switched to the closed position and the yield shutter 34 is set to the open position in a state where a predetermined volume of grains is stored in the yield measurement container 32, the grains stored in the yield measurement container 32 are changed to the taste measurement container 33. Is temporarily held inside. The yield measuring container 32 is provided with a taste measuring unit for measuring the taste value (water or protein) of the held grain. Thereby, the taste of the grain whose yield is measured in the yield measuring container 32 is also measured. At that time, if there are too many stored grains, it is also possible to set a part of the stored grains as the target of taste measurement by adjusting the timing when the taste shutter 35 is closed. is there. That is, since at least a part of the grain of a predetermined volume used for calculating the unit travel yield is used for taste measurement by the taste measurement unit, it is possible to prevent the grain from remaining in the yield measurement container 32. Therefore, the corresponding unit travel yield and taste value can be related as a data set of grains harvested at a specific position in the field. By repeatedly acquiring this data set during the harvesting run of the combine 1, harvest information for evaluating the distribution of yield and taste in the field is generated and recorded in the combine 1 or a remote server.

  In order to assign the yield and taste of the grains harvested in a specific cutting area (field section), it is necessary to consider the time delay from the harvesting of the grains to the measurement for that grain. . This delay time can be calculated on the basis of the processing time from the time when the culm is first harvested by the stock sensor to the time when the grain reaches the yield measuring container 32 and the traveling speed of the combine 1 at that time. . By using the calculated delay time, it is possible to accurately match the specific position assigned to the data set consisting of yield and taste.

  Next, one specific embodiment of a combine according to the present invention will be described with reference to the drawings. FIG. 2 is a side view of the combine 1, and FIG. 3 is a side view of the combine 1.

  The combine 1 includes a body frame 10 in which a plurality of steel materials such as a channel shape material and a square pipe material are connected. A pair of left and right crawlers 11 are provided at the lower part of the body frame 10. An engine E is mounted on the front side of the right half of the body frame 10, and an operating unit 13 is formed on the upper side thereof. A driver's seat 16 and a control lever 17 are disposed in the driver 13. The front end portion on the left side of the machine body frame 10 is provided with a cutting unit 12 that cuts a crop culm to be harvested that is positioned in front of the machine body and transports it backward. The left half of the machine frame 10 receives the harvested cereal meal conveyed by the reaping part 12 and applies the threshing process to the granulated part of the harvested cereal meal while conveying it backwards. A threshing device 14 for performing a sorting process is mounted. On the rear side of the right half of the machine body frame 10, there is mounted a sheet metal grain tank 15 for storing the grains lifted and transported from the threshing device 14 via the screw feed type supply conveyor 30. The grain tank 15 is equipped with a grain discharging device 19 that discharges the grain stored in the grain tank 15 to the outside of the machine. Although only schematically shown in FIGS. 2 and 3, a yield measuring unit 21 that measures the yield of the grain and a taste measuring unit 22 that measures the taste of the grain are provided inside the grain tank 15. Has been placed.

  As schematically shown in FIG. 4, the yield measurement and the taste measurement are performed by the grain entering the inlet 15 a into the yield measurement container 32 and the taste measurement container 33 provided in the grain tank 15. Is done by. In this embodiment, as shown in FIG. 4, the upper half of the cylindrical body 31 provided on the side wall of the grain tank 15 is used as the yield measuring container 32, and the lower half of the cylindrical body 31 is the taste. Used as the measurement container 33. That is, the yield measuring container 32 and the taste measuring container 33 are integrally formed as a cylindrical body 31 with the taste measuring container 33 positioned below the yield measuring container 32. The upper opening of the cylindrical body 31 functions as a yield receiving port 32 a of the yield measuring container 32. A yield shutter 34 is provided at the yield discharge port 32 b which is the lower end of the yield measurement container 32. The yield shutter 34 can be moved by an actuator 34a between a closed posture that blocks the internal space of the cylindrical body 31 in the transverse direction and an open posture that allows passage of the internal space of the grain. Since the yield measurement container 32 and the taste measurement container 33 are continuously formed in the vertical direction, the yield discharge port 32 b functions as a taste receiving port of the taste measurement container 33. A taste shutter 35 is also provided at the taste discharge port 33 b which is the lower end of the taste measurement container 33. The taste shutter 35 can also be oscillated by the actuator 35a between a closed posture that blocks the internal space of the cylindrical body 31 in the transverse direction and an open posture that allows passage of the internal space of the grain.

  The yield receiving port 32a of the yield measuring container 32 is disposed at a position where a part of the grain conveyed from the threshing device 14 by the supply conveyor 30 and discharged from the input port 15a to the grain tank 15 by the impeller reaches. ing. Accordingly, when the yield shutter 34 swings to the closed position, the grains flying from the inlet 15a enter the yield measuring container 32 through the yield receiving port 32a and are stored on the yield shutter 34 that closes the yield discharge port 32b. Start to be. The yield measuring container 32 is provided with a proximity sensor as the yield measuring unit 21, and outputs an appropriate amount detection signal when a predetermined amount of grain is stored in the yield measuring container 32.

  When the yield shutter 34 of the yield measurement container 32 that stores a predetermined amount of grain swings to the open posture, the grain stored in the yield measurement container 32 flows into the taste measurement container 33. At that time, if the taste shutter 35 is in the closed posture, the grain is held in the taste measurement container 33. Since the taste measurement container 33 is provided with the taste measurement unit 22, the taste of the held grain is measured. In this embodiment, spectroscopic analysis is used in the taste measurement unit 22, and a grain moisture value and a protein value can be measured. The taste measurement unit 22 can output a taste value including at least one of measured values related to moisture and protein as grain components, and further, a taste calculation value obtained from the component ratio thereof.

  A functional block diagram for explaining a control system related to yield measurement and taste measurement in the combine 1 is shown in FIG. This control system is substantially based on the basic principle shown in FIG. The functional units that are particularly relevant to the present invention and are constructed in the control system 5 mounted on the combine 1 are a travel control ECU (electronic control unit) 53, a work unit ECU 54, and a measurement evaluation module 50, which are substantially the same. This function is realized by executing a program, but in some cases, hardware is partially used. These functional units are connected to each other by an in-vehicle LAN. The measurement evaluation module 50 is connected to the yield measurement unit 21, the taste measurement unit 22, the yield shutter 34, and the taste shutter 35 that are provided in the grain tank 15.

  The travel control ECU 53 is an ECU that handles various control information related to vehicle travel. For example, the travel speed, travel distance, travel locus, engine speed, fuel consumption, etc. acquired from a sensor management module (not shown) through the in-vehicle LAN. It has a function to convert the data of the car into travel information. The work device ECU 54 is an ECU that controls a harvesting and harvesting device such as the reaping unit 12 and the threshing device 14, and has a function of converting data indicating operation states and operating states of various devices into work information. Note that a signal from the stock sensor 12a that detects the actual execution of the cereal reaping operation is transferred to the measurement evaluation module 50 via the work unit ECU 54. Further, although not shown, the control system 5 includes a display ECU that controls display of information on a monitor and a meter panel and a communication ECU that exchanges data with external devices (including remote servers). It has been.

  The measurement evaluation module 50 includes a shutter control unit 51, a time calculation unit 55, a yield calculation unit 56, a harvest information generation unit 57, and a harvest evaluation unit 58. The shutter control unit 51 controls the yield shutter 34 and the taste shutter 35 to be switched between a closed posture and an open posture. The time calculation unit 55 is a time from when the yield shutter 34 is switched to the closed posture until a predetermined amount of grains is stored in the yield measurement container 32 (an appropriate amount detection signal is input from the yield measurement unit 21). Storage time is calculated. The yield calculation unit 56 can calculate the yield per unit travel time from the storage time and the predetermined amount, or the yield per unit travel distance from the predetermined amount, the storage time, and the travel speed. When the travel distance of the combine 1 is measured, the yield per travel distance can be directly calculated from the direct travel distance measured within the storage time and a predetermined amount. The yield per unit time and the yield per unit travel distance is one of the forms of unit travel yield, which is the yield per unit travel in the present invention.

  The harvest information generation unit 57 links the taste data obtained from the taste measurement unit 22, the yield data (travel unit yield) obtained from the yield calculation unit 56, and travel data such as the travel distance or travel position obtained from the travel control ECU 53. Thus, harvest information is generated for each measurement. At that time, there is a time difference (delay time) between the measurement time point of the measurement target grain and the time point when the grain is harvested, and it is necessary to adjust this. This time difference can be obtained by calculating the time from when the stock sensor 12a detects the cereal at the start of the harvesting operation until the grain threshed from the cereal reaches the grain tank 15. The harvest evaluation unit 58 allocates the harvest information generated by the harvest information generation unit 57 to a field section obtained by dividing the field, and generates field distribution information of yield and taste. The harvest evaluation unit 58 may be constructed on an external computer, and the harvest information may be sent from the harvest information generation unit 57 to the harvest evaluation unit 58 via a communication line. Further, a configuration may be adopted in which the harvest information generation unit 57 and the harvest evaluation unit 58 are integrated to have any one or both functions.

Next, an example of the flow of control in yield measurement and taste measurement will be described using the time chart, the state transition of the yield measurement container 32 and the taste measurement container 33 shown in FIG.
In the initial state where the mowing work has not started, the yield shutter 34 and the taste shutter 35 are in the open posture. When the harvesting operation starts and the time when the grain is released to the grain tank 15, the yield shutter 34 is switched to the closed posture, and the storage of the grain in the yield measuring container 32 is started. At the same time, time measurement (generation of a count signal) by the time calculation unit 55 starts. When the grain storage amount in the yield measurement container 32 reaches a predetermined amount, the proximity sensor 21 as the yield measurement unit 21 is activated, and an appropriate amount detection signal is generated.

  With the generation of the appropriate amount detection signal as a trigger, the time measurement by the time calculation unit 55 is stopped, the yield shutter 34 is switched to the open posture, and the taste shutter 35 is switched to the closed posture. The time measurement value by the time calculation unit 55 is a time (represented by t1 in FIG. 6) until a predetermined amount of grain is stored in the yield measurement container 32. Here, if the predetermined amount is q, a yield per unit time can be obtained at q / t1.

  The grain stored in the yield measurement container 32 moves to the taste measurement container 33 by switching the yield shutter 34 to the open position and switching the taste shutter 35 to the closed position. The taste shutter 35 may be switched to the closed posture in advance.

  At the timing when the yield shutter 34 is switched to the open posture and all the grains in the yield measurement container 32 are moved to the taste measurement container 33, the yield shutter 34 returns to the closed posture again, and the grains start to be stored in the yield measurement container 32. . At the same time, time measurement (generation of a count signal) by the time calculation unit 55 starts. In the taste measurement container 33, taste measurement is started. The moisture value and protein value are measured through wavelength analysis of the light beam applied to the grain. The measurement time required for taste measurement is about several seconds to several tens of seconds.

  When the taste measurement is finished, the taste shutter 35 is switched to the open posture, and the grains in the taste measurement container 33 are released to the grain tank 15. The predetermined storage amount in the yield measurement container 32 is equal to or larger than an amount capable of receiving the grains flowing into the yield measurement container 32 during the taste measurement. Again, when an appropriate amount detection signal is generated when the amount of stored grains in the yield measurement container 32 reaches a predetermined amount, as described above, the time measurement by the time calculation unit 55 stops and the yield shutter 34 opens. The taste shutter 35 is switched to the closed posture. The storage time in the second yield measurement is represented by t2 in FIG. In this way, the yield and taste per hour are determined during the cutting operation.

Since the growth state of crops such as rice and wheat varies depending on the position of the field, that is, the section into which the field is finely divided, the yield per hour sequentially obtained as described above varies depending on the position of the field. This is schematically shown in FIG. Here, T1, T2,... Are traced back from the time when each yield measurement (time measurement) is completed by the time during which the grain is conveyed from the cutting unit 12 to the yield measurement unit 21 (that is, the delay time described above). Time (when the grain was harvested from the field). P1, P2,... Are the position of the combine 1 in the field at that time or the travel distance from the start of work. Yield per hour: Δq obtained by each yield measurement is a value obtained by dividing the predetermined amount: q by the time measurement value: t by the time calculation unit 55. As is clear from FIG. 7, here, a certain time: n measurement end point: time yield obtained at Pn (Tn): Δqn (Δq1, Δq2,...) Is the previous measurement: n−1. It is considered to be effective in the field small area from the time point Pn-1 (Tn-1) to this time. Therefore, it is possible to calculate the yield in an arbitrary section of the field from the yields per unit time: Δq1, Δq2,.
Alternatively, a method may be adopted in which the yield per unit time: Δqn obtained at a certain time point: Pn (Tn) is adapted to the ½ compartment region before and after the certain time point: Pn (Tn). It is good to adopt a method that adapts the yield per hour obtained at a certain time point: Pn (Tn): Δqn to the region up to the time point: Pn + 1 (Tn + 1) when the next measurement result is obtained. Also good.

In FIG. 8, during the cutting operation, the yields per hour obtained in this way: Δq1, Δq2,..., And the taste measurements obtained at the same time are assigned to the field sections, yield and taste distribution data. The process of creating is schematically shown.
In the section 01, the positions P1 and P2 corresponding to the time T1 and the time T2 are included, and the section 01 is shifted to the section 02 at the time T01. As described above, in section 01, Δq1 is assigned as the yield per hour to the section up to position P1, and Δq2 is assigned as the yield per hour to the section from position P1 to position P2. Furthermore, Δq3 is assigned as the yield per hour to the remaining section from the position P2. Therefore, the yield in the section 01: Q01 is calculated as follows.
Q01 = Q1 + Q2 + Q31, where Q1 = Δq1 × (T1−T0),
Q2 = Δq2 × (T2−T1),
Q31 = Δq2 × (T2−T1).
In this embodiment, the taste measurement is also performed on the stored grains used in the calculation of the yields Q1, Q2, and Q3, and the respective taste values S1, S2, and S3 are obtained. Thus, the taste value S01 in the section 01 can be obtained. At this time, since the proportion of S3 in the section 01 is smaller than the other two, a weighted average considering the corresponding weight may be adopted.

  The obtained data set: [Q01, S01, 01] linking the obtained yield: Q01, the taste value: S01, and the ID indicating the section 01 (here, 01) is assigned to the field section map as the harvest information. Thus, the harvest information assigned to each section can be visualized in the form of a distribution graph of yield and taste.

  Here, for simplicity of explanation, the cutting width of the combine 1 is set as one side of the unit section, and the unit traveling distance is set as the other side of the unit section. Therefore, the unit traveling yield is directly used as the yield per unit section. We are dealing. However, when one side of the unit section is larger than the cutting width of the combine 1 and the combine 1 travels a single unit section a plurality of times, the yield of each section is determined based on the travel trajectory of the combine 1. It is calculated by accumulating the yield for each run.

[Another embodiment]
(1) In the above-described embodiment, the yield measuring container 32 and the taste measuring container 33 are formed at different positions on the same cylindrical body 31 and have an integrated structure. However, the yield measuring container 32 and the taste measuring container 33 are integrated. And may be separate structures that are independent of each other. An example of a simple configuration at that time includes a cylindrical body 31 for the yield measuring container 32 and a cylindrical body 31 of the taste measuring container 33, and forms an independent yield measuring container 32 and a taste measuring container 33, respectively. It is to be. At that time, if the yield measuring container 32 including the yield shutter 34 and the taste measuring container 33 including the taste shutter 35 are configured to be individually attachable / detachable, the yield measuring container 32 and the taste measuring container 33 are integrated. Compared to a typical configuration, the removal work and installation work at the time of failure are simplified, and the maintenance and inspection costs are reduced.
When only yield measurement is required, only the yield measurement container 32, the yield shutter 34, and the yield measurement unit 21 are provided, and the taste measurement container 33, the taste shutter 35, and the taste measurement unit 22 can be omitted.
(2) In the above-described embodiment, as shown in FIG. 4, the grain received in the yield measurement container 32 is a part of the grain conveyed by the supply conveyor 30, and thus is received in the yield measurement container 32. It is necessary to calculate the actual yield from the measured yield based on the ratio of the grain to be accepted and the unacceptable grain. In order to avoid this, a configuration may be adopted in which the total amount of grain conveyed by the supply conveyor 30 is once received in the yield measurement container 32.
(3) In the above-described embodiment, as shown in the time chart of FIG. 6, the yield measurement and the taste measurement are performed almost continuously, but the interval between each measurement may be made longer. . Or you may enable it to change the space | interval of each measurement according to a working state.
(4) In the embodiment described above, the measurement evaluation module 50 is incorporated in the control system 5 of the combine 1. Instead of this, the measurement evaluation module 50 may be constructed as a program for a portable communication device such as a tablet computer or a smartphone brought into the combine 1. At that time, the necessary data from the control system 5 and the yield measuring unit 21 and the taste measuring unit 22 may be wirelessly transmitted to the portable communication device via the LAN adapter provided in the in-vehicle LAN of the combine 1. In particular, smartphones are owned by almost all drivers and have a data transmission function using a communication line with a remote location as a standard function. It is easy and suitable to transfer to and record there.
(5) In the above-described embodiment, the proximity sensor is used as the yield measurement unit 21, but other sensors and switches that can detect that a predetermined amount of grain has been stored in the yield measurement container 32. It may be used. In addition, it is also possible to perform empty detection of the grain in the yield measurement container 32 using such a sensor or switch used as the yield measuring unit 21 and to confirm the release of the stored grain by opening the yield shutter 34. Good. For the same purpose, such a sensor or switch may also be provided in the taste measurement container 33 so as to detect an empty grain in the taste measurement container 33 or in some cases detect an appropriate amount.
(6) In the above-described embodiment, an optical type is used as the taste measurement unit 22, but other types such as a crushing type may be used.
(7) In the above-described embodiment, as shown in FIG. 4B and the like, the yield measuring container 32 and the taste measuring container 33 are formed along the side wall of the grain tank 15, and the yield measuring container is further formed. The actuators 34a and 35a of the yield shutter 34 and the taste shutter 35 are provided on the side surfaces of the tank 32 and the taste measuring container 33 on the inner side of the tank. In addition, the taste measuring unit 33 is provided with a penetrating portion on the side wall of the grain tank 15 and is attached to the inside and outside of the side wall. Instead of this configuration, as shown in FIG. 9, the actuators 34 a and 35 a of the yield shutter 34 and the taste shutter 35 may be provided on the side wall of the grain tank 15. In that case, in the example of FIG. 9, the penetration part is provided in the side wall of the grain tank 15, and the actuators 34a and 35a are attached over the inner side and the outer side of the side wall. The taste measuring unit 33 is provided on the side surface of the taste measuring container 33 opposite to the side wall of the grain tank 15. Further, in another embodiment shown in FIG. 9, the yield measuring unit 21 is not connected to the yield shutter 21 by a load cell arranged between two bottom plates of the yield shutter 21 having a double bottom plate structure, instead of a proximity sensor or the like. You may make it the structure which measures the weight of the stored grain. In such a case, when the yield (volume) is converted from the weight, a more accurate yield can be obtained by performing moisture correction based on the moisture value of the grain.

  INDUSTRIAL APPLICABILITY The present invention is applicable to various types of combine equipped with a grain tank that stores grains obtained by threshing cereals harvested from a field while traveling.

1: Combine 12: Harvesting unit 14: Threshing device 15: Grain tank 21: Yield measuring unit (proximity switch)
22: Taste measuring unit 30: Supply conveyor 31: Tubular body 32: Yield measuring container 32a: Yield receiving port 32b: Yield outlet (taste receiving port)
33: Taste measuring container 33b: Taste discharge port 34: Yield shutter 35: Taste shutter 51: Shutter control unit 53: Travel control ECU
54: Work device ECU
55: Time calculation unit 56: Yield calculation unit 57: Harvest information generation unit 58: Harvest evaluation unit

Claims (1)

In a combine that harvests cereals from the field while traveling, threshs the harvested cereals, and stores the obtained grains in the grain tank,
A taste measuring container having a taste receiving port for receiving at least a part of the grains supplied to the grain tank, a taste releasing port for releasing the accepted grains, and a taste shutter for opening and closing the taste releasing port. ,
A combine measuring unit configured to measure a taste value of a grain held in the taste measuring container in a state where the taste shutter is closed;

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