JP2016063791A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester which can measure an amount of harvest stored in a harvest tank in precise measurement or simple measurement in accordance with a user's current requirement.SOLUTION: In the execution of precise measurement which precisely measures the harvest stored in a harvest tank, precise measurement equipment setting processing is executed which generates a state of equipment appropriate for precise measurement. In the measurement control, the precise measurement which is accompanied by the precise measurement equipment setting processing and a simple measurement which is not accompanied by the precise measurement equipment setting processing can be selected. Through a manipulation device, a precise measurement command commanding the precise measurement or a simple measurement command commanding the simple measurement is output. Before harvest unloading work by an unloader device discharging the harvest to outside, a record of a simple measurement result based on the preceding simple measurement command is rewritten by a precise measurement result based on the succeeding precise measurement command.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a harvesting machine that temporarily stores a crop harvested from a field while traveling in a harvest tank.

  In such a harvesting machine, the harvesting operation is performed on one or more fields by repeatedly storing the harvested product in the harvested tank and discharging it from the harvested tank. In the combine (a kind of harvester) disclosed in Patent Document 1, it is determined that the tilting posture of the traveling machine body is horizontal with respect to the left-right direction and the front-rear direction by controlling the posture of the combine using a hydraulic cylinder (for example, 10 After the second), the mass (yield) of the grain in the grain tank is calculated on the assumption that preparation for precision measurement is ready. With such a combine, it is possible to accurately measure the mass of the grain in the grain tank, but it takes time to prepare for precise measurement. For this reason, there is a demand for simple measurement without preparation for precise measurement.

JP 2011-36193 A

  In view of the above circumstances, an object of the present invention is to provide a harvester that can smoothly perform the amount of harvest stored in the harvest tank by either precise measurement or simple measurement in accordance with the user's request at that time. Is to provide.

  The harvester according to the present invention includes a crop tank that temporarily stores a crop that is harvested while traveling in a field, a measuring instrument that measures the amount of the crop stored in the crop tank, And an unloader device for carrying out the harvest stored in the harvest tank to the outside. As a control system, an instrument control unit that executes instrument setting processing for precision measurement that creates an instrument state that enables precision measurement by the instrument, and measurement by the instrument in precision measurement with the instrument setting process for precision measurement. A measurement control unit including a precision measurement execution unit to perform and a simple measurement execution unit to perform measurement by the measuring device by simple measurement without the precision measurement device setting process. Furthermore, in response to an operation on the human operation device, an operation command processing unit that outputs a precision measurement command for instructing the precision measurement and a simple measurement command for instructing the simple measurement, and before a harvest discharge operation by the unloader device, Also provided is a measurement result recording unit for rewriting a simple measurement result based on the preceding simple measurement command with a precise measurement result based on the subsequent precise measurement command.

  In this configuration, the measurement control unit that controls the measurement of the amount of stored harvest using a measuring instrument has a precision measurement execution unit and a simple measurement execution unit. When a simple measurement command is desired for a precise measurement command, the stored harvest amount (yield) can be measured by a desired measurement method by giving the measurement control unit a simple measurement command. In precise measurement, prior to actual measurement, an instrument state (for example, a stationary state of a vehicle body) that enables precise measurement is created and then measurement is performed. The measurement of the amount of harvest (also referred to as yield) stored in the harvest tank is normally performed before the harvest discharge operation by the unloader device. At that time, after giving a simple measurement command first and performing a simple measurement, if a precise measurement is desired, if the harvester has not been discharged by the unloader device, the precise measurement can be performed by giving a precise measurement command. In addition to the execution of the measurement record, the measurement result of the previous simple measurement is rewritten with the measurement result of the subsequent precise measurement. Even if both simple measurement and precision measurement are performed, it is advantageous because the measurement result of the precision measurement is recorded in the collection of the measurement result performed after the harvesting operation.

  As an artificial operation device used by the driver (operator) to select either precision measurement or simple measurement, a separate switch (button or dial) may be used for precision measurement and simple measurement. May be employed, or a configuration that also serves as another function switch (may be a button or a dial) may be employed. In one preferred embodiment of the present invention in the former case, the artificial operation device includes a simple measurement switch for sending a signal for outputting a simple measurement command to the operation command processing unit, and a precision measurement command output. And a precision measuring switch that sends a signal for. In this configuration, the operator can clearly distinguish between precision measurement and precision measurement, thereby reducing selection errors. In one of the preferred embodiments of the present invention in the latter case, the simple measurement switch is also used as a start switch of the unloader device. A signal for requesting activation of the unloader device is transmitted by a single operation of the activation switch. Considering that stored harvest amount measurement is often performed as a series of work in conjunction with harvesting work by the unloader device, by using both the simple measurement switch and the starter switch of the unloader device, There is an advantage that a series of operations of simple measurement and harvesting work performed in a short time can be smoothly performed.

  In one of the preferred embodiments according to the present invention, in the precision measurement device setting process, the harvesting machine body is shifted to a horizontal posture, the power is cut off to the harvesting work device, and the unloading work device is stored in the storage position. Any or all of the fixed are executed. According to this configuration, the harvest tank becomes a stable posture suitable for measurement by shifting the harvester vehicle body to the horizontal posture. The transmission of vibrations to the harvester tank and the measuring device is avoided by cutting off the power to the harvesting equipment. Stabilization of the measurement can be obtained by stabilizing the center of gravity of the vehicle body by fixing the unloading work device at the storage position. Thereby, measurement reliability of precision measurement is improved.

  When calculating the amount of stored harvest from the measurement value output from the measuring device, a conversion table is required to derive the yield from the measurement value. At that time, when the conversion table differs depending on the type of harvest, or when identification data for identifying the type of harvest is added as a yield attribute value, it is necessary to reliably identify the harvest being harvested. There is. Since such a harvest varies depending on the season and year, the correct information has been registered in the management center recently. For this reason, in one of the preferred embodiments of the present invention, a conversion table for deriving a yield, which is the amount of harvest stored in the harvest tank, from a measurement value obtained by the measuring instrument is transmitted from the management center through a data communication line. It is constructed based on the data that is sent. At that time, by providing the management center with identification information of the field to be harvested, appropriate data is sent from the management center to the control unit of the harvester.

  When the harvest is rice, wheat, corn, or the like, it is necessary to carry out the harvest stored in the harvest tank several times during the harvesting operation in one field using an unloader device. For this reason, in one preferred embodiment of the present invention, the unit yield, which is the amount of the crop stored in the crop tank, calculated from the measurement result of the measuring device, and the integration of the unit yield. A display unit for displaying both the accumulated yields is provided. Thus, the driver can confirm the yield of the stored harvest every time the discharge operation is performed, and can confirm the total yield of the field after the harvesting operation in one field.

It is a schematic diagram explaining the flow of the basic control of simple measurement control and precise measurement control in the present invention. It is a side view of a combine which is one of the specific embodiments of the present invention. It is a top view of a combine which is one of the specific embodiments of the present invention. It is a perspective view which shows the periphery structure of the load cell which measures a grain tank. It is sectional drawing which shows the periphery structure of the load cell which measures a grain tank. It is a functional block diagram which shows the function part of a measurement control system.

  Before describing a specific embodiment of the harvesting machine according to the present invention, the basic principle of control for calculating the amount of harvest stored in the harvest tank before discharging by the unloader device using FIG. Will be explained. FIG. 1 shows a harvester that harvests wheat and rice. As is well known, this harvester has a harvest tank (grain tank) for temporarily storing the harvest (grain) and an unloader device for discharging the harvest stored in the harvest. Is provided. A measuring device for measuring the amount of the harvest stored in the harvest tank is provided around the harvest tank.

  When measuring the amount of the crop stored in the crop tank, two methods, precision measurement and simple measurement, are performed. In precision measurement, in order to avoid the measurement error of the measuring instrument due to disturbance as much as possible, the state of each device equipped in the harvesting machine does not become a disturbance factor, for example, the stop state of the driving device or the stable posture state of the device whose balance fluctuates In order to achieve the above, precision instrument setup processing is performed on the relevant instrument. As a result, the number of instruments that can cause disturbance of the measuring instrument is reduced, and a state suitable for precision measurement is created. In the simple measurement, a part or all of the above-described precision measurement device setting process is omitted. Therefore, in the simple measurement, an accurate measurement such as a precision measurement cannot be expected, but the measurement time is shortened because the precision measurement device setting process is omitted.

  Selection between precision measurement and simple measurement is performed through an operation on an artificial operation device arranged in the vicinity of the driver's seat (# 01). The artificial operation device can be configured with a switch, a button, a lever, and the like, but when a display device such as a liquid crystal panel is provided, it may be a software button displayed on the display screen. The operation for the software button is input through the touch panel. When the driver selects the simple measurement through the artificial operation device, a simple measurement request is output (# 11), and when the precise measurement is selected, the precise measurement request is output (# 21) and is given to the measurement control system.

  In the measurement control system, when a simple measurement request is received, “simple” is set in the measurement flag (# 12), and simple measurement is executed (# 14). In the simple measurement, the measuring instrument immediately operates to measure the weight of the harvested product including the harvested tank and output the measured value as the measurement result. The obtained measured value is converted into a yield by the measured value / yield conversion table. Note that the measurement value / yield conversion table may vary depending on the type of harvester, the type of harvested product, and the like. For this reason, the driver sends the identification information of the harvesting machine and the identification information of the field that is the harvesting area to the management center in advance, and the measured value / yield conversion table that can be appropriately used in the current harvesting operation is transmitted through the communication line. Download it through. If the downloaded measurement value / yield conversion table includes a field name, a harvested variety, and the like, these pieces of information can be linked to the calculated yield as a yield attribute value.

  Further, until the simple measurement is completed, the measurement flag is read (# 15) and the content is checked (# 16). The reading of the measurement flag and the content check of the measurement flag are repeated until the unload operation is started. This is a measure for dealing with a situation where the driver selects the simple measurement once and then selects the precise measurement again. In either case of reselection or selection from the beginning, when the driver selects precision measurement through the artificial operation device, a precision measurement request is output (# 21) and given to the measurement control system. As a result, “precision” is set in the measurement flag (# 22). Therefore, if the precise measurement is selected after the simple measurement is selected first, the content of the measurement flag is changed from “simple” to “precision”. Therefore, in the content check of the measurement flag in step # 16 If the content of the measurement flag is “precision”, the process jumps to step # 23 to execute the precision measurement device setting process, and then the precision measurement is performed (# 24). Of course, when the precise measurement is selected from the beginning, the precise measurement is performed through steps # 21, # 22, and # 23 (# 24).

  In the precision measurement device setting process in step # 23, the vehicle body is stopped, the vehicle body is horizontal, the work device including the unloader device is fixed in a stable posture, and the drive device is stopped. Is removed as much as possible. The precise measurement here means measurement under such a measurement disturbance reduction condition, and the measurement itself is not different from the simple measurement.

  If the content of the measurement flag is “simple” in the check of the content of the measurement flag in step # 16, the yield obtained by the simple measurement is recorded in the memory (# 17), and the content of the measurement flag is “” (empty). (# 18). When recording the yield, it is convenient to analyze the data after the harvesting work if the type code, field identification code, etc. that specify that the measurement performed is a simple measurement are recorded along with the data indicating the yield. . Note that the yield for each unloading operation recorded in the memory is integrated for each field, can be displayed as an integrated yield for each field, and is recorded for later use.

  Also in the precision measurement, when the yield is calculated, it is recorded in the memory (# 27), and the content of the measurement flag is set to “” (empty) (# 28). In this case, when the yield is recorded, the data indicating the yield is recorded together with a type code for specifying that the measurement performed is a precise measurement, a field identification code, and the like.

  When the yield measurement is completed, an unloading operation (unloading operation) using an unloader device to the outside (such as a truck) of the harvest stored in the harvest tank is started (# 30).

  Next, one specific embodiment of the harvester according to the present invention will be described with reference to the drawings. FIG. 2 is a side view of a combine as an example of a harvesting machine, and FIG. 3 is a plan view. This combine is a self-removable combine, and a body frame 10 constituting the body is supported on the ground by a pair of left and right crawler travel devices 11. A mowing unit 12 for harvesting the planted cereals to be harvested and conveying the harvested cereals toward the rear of the fuselage is disposed at the front of the fuselage, and the operation is provided with a front operation table 13A and a side operation table 13B at the rear. 14, and further, a threshing device 15 for threshing / sorting the harvested cereal meal, a grain tank (a kind of harvest tank) 9 for storing the grains sorted and recovered by the threshing device 15, and the grains from the grain tank 9 An unloader device 8 for discharging the grains, a waste wall processing device 16 for processing the waste wall, and the like are arranged. As shown in FIG. 3, the front operation console 13 </ b> A is equipped with a liquid crystal panel 70 as a display device for displaying various information, together with a control lever and a shift lever. On the side operation table 13B, an artificial operation device 30 for selecting precision measurement or simple measurement at the time of yield measurement is arranged. In this embodiment, a simple measurement switch 31 for sending a signal for outputting a simple measurement command and a precision measurement switch 32 for sending a signal for outputting a precise measurement command are provided separately.

  The threshing device 15 threshs the tip of the harvested cereal cocoon conveyed from the reaping unit 12, and cerealized into grains by a sorting action (not shown) provided in the threshing device 15. And separated into dust such as straw scraps, etc., and a single grain is conveyed to the grain tank 9 as a harvest. The waste straw after the threshing process is shredded by the waste straw processing apparatus 16.

  As can be understood from FIG. 2 and FIG. 3, a grain transport mechanism for feeding the grain from the threshing device 15 to the grain tank 9 is arranged. This grain conveying device is composed of a first thing collecting screw 17a provided at the bottom of the threshing device 15 and a screw conveyor type cerealing device 17b. The grain that has been laterally fed by the first thing collecting screw 17a is conveyed upward by the cerealing device 17b and is fed 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, in the upper end area | region of the whipping apparatus 17b, the rotary blade which jumps a grain toward the grain tank 9 is provided, and a grain is as uniform as possible in the grain tank 9. It has been devised to store in a horizontal distribution state.

  The unloader device 8 includes a bottom screw 81 provided at the bottom of the grain tank 9, a vertical feed screw conveyor 82 provided on the rear side of the machine body of the grain tank 9, and a lateral feed extending above the threshing device 15. And a screw conveyor 83. The grains stored in the grain tank 9 are fed from the bottom screw 81 to the transverse feed screw conveyor 83 via the longitudinal feed screw conveyor 82, and from the discharge port 84 provided at the front end of the transverse feed screw conveyor 83 to the outside. Discharged. The vertical feed screw conveyor 82 is configured to be rotatable around the vertical axis P <b> 2 by the operation of the electric motor 85, and the horizontal feed screw conveyor 83 swings up and down around the horizontal axis P <b> 1 at the base end by the hydraulic cylinder 86. It is configured to be operable. Thereby, the discharge port 84 of the transverse feed screw conveyor 83 can be positioned at a position where the grain can be discharged to a transport truck or the like outside the machine. The position and orientation at which the transverse feed screw conveyor 83 is substantially horizontal and the entire transverse feed screw conveyor 83 is within the outline of the harvesting machine in plan view is the home position of the transverse feed screw conveyor 83 (home position of the unloader device 8). In this home position, the transverse screw conveyor 83 is firmly held and fixed from below by the holding device 87.

  The bottom portion of the grain tank 9 is inclined so that the left bottom wall and the right bottom wall form a wedge shape facing downward, and a bottom screw 81 is disposed in the tip region. The left and right walls connected to the upper ends of the left and right bottom walls are almost upright. With such a structure of the grain tank 9, the grain put into the grain tank 9 flows down toward the bottom screw 81.

  As shown in FIG. 2, a cylindrical swing support shaft 90 is provided at the rear end of the grain tank 9. The swing axis of the swing support shaft 90 coincides with the vertical axis P2, and the grain tank 9 has a horizontal horizontal swing around the vertical axis P2 as shown by a dotted line in FIG. It is possible to move. That is, the grain tank 9 projects from the threshing device 17b to the working position, protrudes laterally outward, and the front side is separated from the threshing device 15 and behind the control unit 14 and the threshing device 15 The position can be changed over the maintenance position where the right side of the door is opened.

  As shown in FIGS. 2, 4, and 5, this combine includes a load cell 20 that constitutes a measuring device 2 that outputs the weight of the grain stored in the grain tank 9 as a measurement result. It has been. FIG. 4 is a perspective view of the vicinity of the load cell 20 during the transition of the grain tank 9 from the maintenance position to the work position. FIG. 5 is a cross-sectional view of the vicinity of the load cell 20 when the grain tank 9 returns to the work position. At this position, the load cell 20 receives the weight of the grain tank 9 and outputs the weight as a measurement result. The load cell 20 is mounted on the body frame 10, and a receiving guide piece 21 that guides the lower part of the grain tank 9 toward the weight detection unit 20 a of the load cell 20 is disposed so as to cover the load cell 20. The receiving guide piece 21 receives and supports the lower end of the grain tank 9 as the grain tank 9 rotates from the maintenance position toward the working position, and the weight detecting unit 20 a of the load cell 20. The weight of the grain tank 9 is measured by the load cell 20 there. The receiving guide piece 21 is formed with an inclined surface so that the grain tank 9 is guided while being lifted as the grain tank 9 is rotated from the maintenance position to the working position. A flat surface further extends from the inclined surface, and a tip portion located at the tip is an inclined surface inclined downward.

  The receiving guide piece 21 has a skirt portion and is pivotally supported by a pivot pin so as to be swingable around a machine body longitudinal axis P4 along the machine body longitudinal direction with respect to a bracket 110a fixed to the machine body frame 10. The through hole formed in the bracket 110a for inserting the pivot pin has a vertical size larger than that of the pivot pin. As a result, flexibility is created between the pivot pin and the through hole. With this accommodation, the receiving guide piece 21 can be displaced up and down within a predetermined range with respect to the longitudinal axis P4 of the machine body. That is, the receiving guide piece 21 is switched between a load receiving state that is positioned so as to cover the weight detection unit 20a of the load cell 20 from above and a retracted state that is retracted upward and outward so as to open the upper portion of the load cell 20. It is free. Further, with this structure, when the upper portion of the load cell 20 is opened, the load cell 20 can be attached / detached without requiring the receiving guide piece 21 to be attached / detached. In this alternative embodiment, as shown in FIG. 5, the weight detection unit 20a of the load cell 20 is covered with a cap member 20A formed in a downward cylindrical shape from above. Therefore, at the work position of the grain tank 9, the upper surface of the cap member 20A is in contact with the lower surface of the receiving guide piece 21, and the lower surface of the cap member 20A is in contact with the pressure receiving surface of the weight detection unit 20a from above. That is, the load on the front side of the grain tank 9 is received by the load cell 20 via the receiving guide piece 21 and the cap member 20A.

  Next, a structure for applying the load on the front side of the grain tank 9 to the receiving guide piece 21 at the work position will be described. An angle-shaped support base 23 is attached to the lower part of the grain tank 9, and a roller 22 is rotatably supported on a vertical wall 23a of the support base 23 via a lateral support shaft 22a. The lower end of the roller 22 is positioned below the lower surface of the horizontal wall 23 b of the support base 23 so that the roller 22 is contacted and guided to the receiving guide piece 21. For this reason, in a state where the roller 22 is guided by the receiving guide piece 21, the horizontal wall 23 b of the support base 23 does not contact the receiving guide piece 21, and the roller 22 is detached from the tip end portion of the receiving guide piece 21. For the first time, the horizontal wall 23 b of the support base 23 comes into surface contact with the flat surface of the receiving guide piece 21. In order to ensure this surface contact, the support base 23 is attached to the grain tank 9 through an adjustment mechanism so that the height can be adjusted. As shown in FIG. 5, the adjustment mechanism includes, for example, a fixing bolt that fixes the support base 23 to the grain tank 9 using a long hole, and an adjustment bolt that presses the upper end against the lower surface of the grain tank 9. It can be easily configured by a combination.

  Further, an auxiliary guide 190 is provided at the lower part of the grain tank 9 adjacent to the support base 23. The auxiliary guide body 190 is a sled member attached to the front surface of the support member 97 and includes an auxiliary roller 191. When the grain tank 9 moves from the maintenance position to the work position, the auxiliary roller 191 rolls along the inclined surface of the inclined table 111 provided on the machine body frame 10. The auxiliary guide body 190 and the inclined base 111 are designed so that the auxiliary roller 191 also has a mutual positional relationship that leaves the inclined base 111 when the roller 22 passes through the receiving guide piece 21. That is, both the roller 22 and the auxiliary roller 191 float in the air at the work position of the grain tank 9, and the lower surface of the horizontal wall 23b of the support base 23 and the flat surface of the receiving guide piece 21 are in surface contact. In a stable state, the weight of the grain tank 9 is measured by the load cell 20.

  The measurement result (measured value) of the load cell 20 may cause an error when the combine body is tilted or a large vibration is generated in the body. For this reason, a precision measurement device setting control function is provided to make the state of the combine that adversely affects the measurement of the load cell 20 as appropriate as possible and to enable a precise measurement. With this precision measurement device setting control function, each device is operated, and the combine is in a state suitable for the weight measurement of the grain tank 9 by the load cell 20. In simple measurement, the operation of each device by this precision measurement device setting control function is omitted.

  FIG. 6 shows a yield measurement control unit 5 that is a core element of a control system for measuring yield (yield), an input signal processing unit 61 that functions as a data input unit of the yield measurement control unit 5, and various combinations. A device control unit 62 that controls the operating device is shown. The yield measurement control unit 5, the input signal processing unit 61, and the device control unit 62 are interconnected by an in-vehicle LAN or other data transmission line. This control system utilizes the measurement principle described in FIG.

  The input signal processing unit 61 receives the measurement value of the load cell 20 and the detection signal from the sensor / switch group 300. Further, a simple measurement request signal is input from the simple measurement switch 31 that constitutes the human operation device 30, and similarly, a precise measurement request signal is input from the precision measurement switch 32 that constitutes the human operation device 30. These input signals are subjected to necessary preprocessing and transferred to the yield measurement control unit 5.

  The sensor / switch group 300 includes a state detector group such as a sensor and a switch for detecting the state of the devices constituting the combine. The state detector group includes, for example, a speed detector that detects the stop of the combine, a detector that detects the shift to the horizontal position that is the home position of the horizontal control mechanism of the vehicle body that is equipped in the combine, A detector that detects the state of the clutch that controls the transmission of power to the threshing device 15, and the home position of the unloader device 8 that is held and fixed by the holding device 87 of the lateral feed screw conveyor 83 (the storage position of the unloader device 8). Detector, etc. to detect.

  In this embodiment, the simple measurement switch 31 constituting the human operation device 30 also functions as a start switch for the grain discharge process by the unloader device 8. If the simple measurement switch 31 is pressed only once (single operation), the grain discharging process by the unloader device 8 is started. If the simple measurement switch 31 is continuously pressed twice (double operation), simple measurement of the yield is performed, and then the grain discharging process is performed. When a precise measurement of the yield is desired, another precision measurement switch 32 is pressed. In addition, as described above, even after the simple measurement switch 31 is operated twice, it is possible to perform precision measurement by operating the precision measurement switch 32 as long as the grain discharging process has not started.

  The device control unit 62 can directly or indirectly give control signals to various operating devices that constitute the unloader device 8, the reaping unit 12, the threshing device 15, and the like. As a function particularly related to the present invention, the device control unit 62 has a function that enables each of the operating devices so that the state of the combine is suitable for precise measurement when the weight measurement by the load cell 20 is precisely performed. A precision measurement device setting processing unit 621 for providing a control signal is constructed.

  In the yield measurement control unit 5, an operation command processing unit 51, a measurement control unit 52, a yield calculation unit 53, and a measurement result recording unit 54 are substantially constructed by software. The operation command processing unit 51 receives a signal output in response to an operation on the artificial operation device 30 via the input signal processing unit 61. For example, when the operation command processing unit 51 receives a signal requesting simple measurement, the operation command processing unit 51 outputs a simple measurement command for instructing simple measurement to the measurement control unit 52, and when receiving a signal for requesting precise measurement, A measurement command is output to the measurement control unit 52.

  The measurement control unit 52 includes a simple measurement execution unit 521 that easily performs weight measurement by the load cell 20 and a precision measurement execution unit 522 that precisely performs weight measurement by the load cell 20. The simple measurement execution unit 521 receives a simple measurement command from the operation command processing unit 51 and immediately gives a measurement execution command to the yield calculation unit 53. Upon receiving the precision measurement command from the operation command processing unit 51, the precision measurement execution unit 522 first instructs the device control unit 62 to execute precision measurement device processing by the precision measurement device setting processing unit 621. . When a notification of completion of precision measurement device processing is received from the device control unit 62, a measurement execution command is given to the yield calculation unit 53.

  The yield calculation unit 53 calculates the yield from the measurement value that is the measurement result of the load cell 20 using the set measurement value / yield conversion table 530. This measured value / yield conversion table 530 differs depending on harvested items such as rice and wheat, and the specifications of the combine. In this embodiment, when the measured value / yield conversion table 530 arrives at the field of harvesting work, It is set based on the data sent from the management center at the time of data exchange performed through the confirmation process of the field via the data communication line.

  The measurement result recording unit 54 records the yield calculated by the yield calculation unit 53 in the memory 55. At that time, if the yield from the precise measurement based on the precise measurement command is obtained in the state where the yield from the simple measurement previously conducted based on the simple measurement command is written, Overwriting the yield from the measurement, the yield from the precision measurement is recorded. When the yield is recorded in the memory 55, the measurement type (precision measurement or simple measurement) executed for the yield calculation, the field name, the harvest type, and the like are also recorded as attribute values.

[Another embodiment]
(1) In the above-described embodiment, the weight measurement of the grain tank 9 is performed by setting the load cell 20 between the lower end of the floating structure and the body frame 10 with the one end side as a swing fulcrum and the other end side as a floating structure. Although the structure to arrange | position is employ | adopted, it replaces with this and the structure which supports the grain tank 9 with the several support point with respect to the body frame 10, and arrange | positions the load cell 20 to the support point may be employ | adopted.
(2) Furthermore, as a measuring device 2 for calculating the yield of the grain stored in the grain tank 9, in addition to measuring the weight including the grain tank 9, the weight or volume of the grain is directly measured. Such a measuring device may be adopted.

(3) The division of the functional units shown in FIG. 6 is an example, and the integration of the functional units and the division of the functional units are arbitrary. Any configuration is possible as long as the control function of the present invention is realized, and these functions can be realized by hardware and / or software.

  The present invention can be applied to ordinary combine harvesters, corn harvesters, and other crop harvesters other than the above-described self-removing combine harvesters.

2: Measuring device 20: Load cell 9: Grain tank 15: Threshing device 30: Artificial operation device 31: Simple measurement switch 32: Precision measurement switch 5: Yield measurement control unit 51: Operation command processing unit 52: Measurement control unit 521: Simple measurement execution unit 522: Precision measurement execution unit 53: Yield calculation unit 530: Measurement value / yield conversion table 54: Measurement result recording unit 55: Memory 61: Input signal processing unit 62: Device control unit 621: For precision measurement Device setting processor

Claims (6)

A crop tank for temporarily storing the crops harvested while traveling in the field;
A measuring instrument for measuring the amount of the crop stored in the crop tank;
An unloader device for carrying out the harvest stored in the harvest tank to the outside;
A device control unit that executes a device setting process for precision measurement that creates a device state that enables precise measurement by the measuring device;
A precision measurement execution unit that performs measurement by the measurement device in the precision measurement with the precision measurement device setting process, and a simple measurement execution unit that performs measurement by the measurement device in the simple measurement without the precision measurement device setting process. A measurement control unit having
An operation command processing unit that outputs a precision measurement command for instructing the precision measurement and a simple measurement command for instructing the simple measurement according to an operation on the artificial operation device,
Before the crop discharge operation by the unloader device, a measurement result recording unit that rewrites the record of the simple measurement result based on the preceding simple measurement command with the precision measurement result based on the subsequent precision measurement command;
Harvester with   2. The artificial operation device includes: a simple measurement switch that sends a signal for outputting a simple measurement command to the operation command processing unit; and a precision measurement switch that sends a signal for outputting a precise measurement command. The harvesting machine described.   The simple measurement switch is also used as a start switch of the unloader device, a signal for outputting a simple measurement command is sent out by a multiple operation of the start switch, and the start of the unloader device is requested by a single operation of the start switch. The harvesting machine according to claim 2, wherein a signal is sent out.   In the precision measurement device setting process, any or all of shifting to a horizontal posture of the harvester body, cutting off power to the harvesting device, and fixing the unloading device at the storage position is performed. Item 4. The harvester according to any one of Items 1 to 3.   A conversion table for deriving the yield, which is the amount of the crop stored in the crop tank, from the measurement value by the measuring device is sent from the management center through the data communication line by giving the identification information of the field to be harvested. The harvesting machine according to any one of claims 1 to 4, wherein the harvesting machine is constructed on the basis of received data.   A display unit that displays a unit yield for each unload that is the amount of the crop stored in the crop tank, and an integrated yield of the field unit that is an integration of the unit yield, calculated from the measurement result of the measuring instrument. The harvester according to any one of claims 1 to 5, which is provided.

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