JP6449691B2 - Grain management system - Google Patents

Description

  The present invention relates to a grain management system for managing the quality of harvested grain. This grain management system manages the quality of the grain harvested by the combine harvested in the grain tank, and the harvested by harvesting the grain harvested from the field while running, and in the grain tank Management server.

  A moisture sensor is provided in the grain tank to detect the electrical resistance value of the crushed grain while crushing the grain flowing in from the grain supply port to the grain tank between the rotating electrode rollers A combine in which a grain moisture measuring means for measuring grain moisture from this electrical resistance value is provided in a control device is known from Patent Document 1. This grain moisture content measuring means computes the grain moisture content from the electrical resistance value from the moisture sensor using a predetermined grain moisture content conversion formula or LUT (lookup table). Specifically, an arithmetic expression or LUT for converting grain moisture called a calibration curve is registered in advance in the ROM for each type of crop to be harvested and for each variety.

  In patent document 2, the harvesting position data indicating the harvesting work position as the farmland information, the harvesting data indicating the harvesting amount of the crop harvested on the farmland and the quality data indicating the quality as the crop information are received from the combine. A farm management system is disclosed in which farm evaluation data is sent to a user by performing farm evaluation of farm land on the basis of the farm crop information.

JP 2006-081488 A JP 2014-0667308 A

Although the agricultural management system by patent document 2 has possibility of implement | achieving highly accurate farming management per field, in order to do so, highly accurate quality data are required. In the grain moisture content measuring means provided in the combine according to Patent Document 1, a calibration curve (a table for deriving the grain moisture value from the measured value) registered in advance in the ROM of the control device is used. However, even for the same crop type and variety, the relationship between the measured value and the grain component value (the grain moisture value is one type) differs depending on the region and year. In addition, when the measurement value that is the basis for deriving the grain moisture content is not the electrical resistance value but the relationship between the measurement value such as the spectroscopic measurement value and the grain component value is highly accurate, Then, simply continuing to use a calibration curve registered in advance for each type and variety of crops, there is a disadvantage that satisfactory grain components cannot be calculated.
In view of the above situation, there is a demand for an agricultural management system that can perform agricultural management using highly accurate grain component values and, as a result, realize highly reliable farm management.

  The grain management system according to the present invention includes a combine that harvests cereal grains from a field while traveling and stores the grains obtained by threshing the harvested cereal grains in a grain tank, and the grains that are harvested by the combine. And a management server for managing the quality of the system. The combine includes a grain measurement unit that outputs a measurement value relating to a component of the grain supplied to the grain tank, field identification information that identifies the field via a communication line, and the measurement value to the management server. A data transmission unit for transmission. The management server includes a receiving unit that receives the field identification information and the measurement value from the combine, and a measurement value and a grain component for deriving a grain component value from the measurement value based on the field identification information A table management unit for determining a value table; and a grain component value calculation unit for obtaining a grain component value from the measurement value using the measurement value / grain component value table determined by the table management unit. .

  According to this structure, the measurement value regarding the component of the grain output from the grain measuring unit of the combine is sent from the combine to the management server together with the field identification information for specifying the field from which the grain is harvested. In the management server, an optimum measurement value / grain component value table for the grain harvested in the field is determined based on the field identification information, and the grain component is determined from the measurement value using the measurement value / grain component value table. A value is derived. As a result, the latest measured value and grain component value table for the harvested grain in the field during harvesting work, which takes into account the harvest area and harvest year, etc., is used. It is possible to achieve farm management with high reliability.

  In one preferred embodiment of the present invention, the management server records the type and / or variety of grains harvested in each field in a readable manner based on the field identification information. The table management unit determines an optimum measurement value / grain component value table based on the grain type and / or variety read from the field database. In this configuration, the optimum measurement value / grain component value table for deriving the component value of the grain from the measurement value is determined based on the type and / or variety of the grain read from the field database. . At that time, the management server determines the type and variety of the harvested grain based on the field identification information of the field sent from the combine, the region and the time, and the quality status of the harvested grain in the surrounding fields. It is preferable that the measurement value / grain component value table that is most suitable for the grain to be actually harvested is obtained so as to be acquired. Thereby, the difference | error of the grain component value by the difference in the kind of grain, or the difference in the kind of grain can be suppressed.

  In one preferred embodiment of the present invention, the management server stores a plurality of measurement value / grain component value tables associated with harvested grain types and / or varieties so as to be extractable. The measured value / grain component value table extracted from the table storage unit using the grain type and / or variety read from the field database as a search condition, and the optimum measured value / grain Determined as a component value table. In this configuration, the combine includes a plurality of measured values / grains with different relationships between measured values and grain component values, which are created taking into account the types and varieties of crops to be harvested, as well as regional and annual fluctuations. A grain component value table is stored so as to be extractable. The management server installed in the central management center is determined based on the field identification information of the fields sent from a large number of combiners. Create a search condition to extract the optimum measured value / grain component value table for the grain that the harvester actually wants to harvest, preferably using the quality status of the harvested grain in the surrounding field. Can do. Using the optimum measured value / grain component value table set by the table management unit using this search condition, the grain component value calculating unit obtains a highly accurate grain component value from the measured value sent from the combine. Can be calculated.

  In one preferred embodiment of the present invention, the management server has a reference measurement value / grain component value table that serves as a reference for the measurement value / grain component value table, and the table management unit includes: The optimum measured value / grain component value table is determined by correcting the reference measured value / grain component value table based on the grain type and / or variety read from the field database. . In this embodiment, only the reference measurement value / grain component value table is prepared, and the type and / or variety of the grain to be calculated based on the field identification information of the field sent from the combine is determined. Read out. Furthermore, by correcting the standard measurement value / grain component value table based on the type and / or variety of the grain, an optimum measurement value / grain component value table is created, Used for calculation.

  The management server is constructed with the participation of many farmers. For this reason, in order to support each farmer's farm management plan, it is important that the grain component value of the harvested grain for each field can be downloaded from the management server to each farmer. For this reason, in one suitable embodiment of the present invention, the management server is provided with a transmission part which transmits the grain component value calculated by the grain component value calculating part to the combine. At that time, if the combine includes a receiving unit that receives the grain component value transmitted from the transmitting unit of the management server and a display unit that can display the grain component value, the combine performs harvesting work. It is convenient because the driver inside can confirm the grain component value in real time or during the work.

  In the combine by this invention, as above-mentioned, a highly accurate grain component value can be calculated | required from the measured value of a grain measurement part. For this reason, it is preferable that the grain measurement unit also performs a highly accurate measurement method and fine grain measurement in units of fine compartments in the field instead of in field units. For this reason, in one preferred embodiment of the present invention, a temporary storage chamber that receives at least a part of the grain supplied to the kernel tank is provided, and the grain measuring unit is provided in the temporary storage chamber. A configuration is adopted in which the measurement value is output based on spectroscopic measurement of light irradiated to the temporarily stored grain, and the grain component value calculation unit obtains at least moisture from the measurement value. With this configuration, the harvested grains are sequentially stored in a temporary storage chamber, and the amount of the grain components, particularly moisture highly related to the taste, is obtained with high accuracy through spectroscopic measurement. Thereby, farming management of a field fine division unit becomes possible.

  Moreover, if the protein component as an important nutrient component of the grain can also be measured together with moisture, it is advantageous in farm management. Therefore, in one preferred embodiment of the present invention, the grain component value calculation unit is configured to derive a protein component value from the measurement value.

  When the combine driver is interested in farm management for the field where the harvesting operation is being performed, it is advantageous that the grain component value of the grain being harvested can be confirmed in real time or during the operation. For this reason, in one suitable embodiment of the present invention, the combine can display the grain component value and the receiving unit that receives the grain component value transmitted from the transmission unit of the management server. And a display unit.

It is a schematic diagram which shows the basic composition for calculating | requiring an exact grain component value from the measured value sent from the combine. It is a side view which shows an example of the combine which comprises the grain management system by this invention. It is a top view of a combine. It is a cross-sectional top view which shows the front part of the grain tank mounted in the combine. It is a schematic diagram which shows a grain tank inside. It is a vertical side view of a measurement unit when the storage shutter provided in the cylindrical formation body provided in the grain tank is in a closed position. It is a vertical side view of the measurement unit when the storage shutter is in the open position. It is a functional block diagram which shows one of the construction examples of a grain management system.

  Before describing a specific embodiment of the grain management system according to the present invention, the grain management is performed using FIG. 1 in cooperation with the management server to calculate the grain component value at the time of harvesting the grain by the combine. The basic configuration of the system will be described. Here, while the combine is running, the harvester 14 harvests the cereal from the field, and the threshing device 15 extracts the grain from the harvested culm. The grain is supplied from the threshing device 15 to the grain tank 16 by the grain transport mechanism. The combine is provided with a grain measurement unit 30 that outputs measurement values relating to the components of the grains supplied to the grain tank 16 and a field identification information management unit 61 that manages field identification information that identifies the field. Yes. In the grain supply path from the threshing device 15 to the grain tank 16, the grain measuring unit 30 takes in at least a part of the grain and performs measurement related to the component of the grain. The field identification information management unit 61 is expected to perform harvesting through manual input by a driver using an input device such as a touch panel, automatic input using a beacon installed in the field, matching between a field map and GPS positioning data, and the like. Field identification information for identifying a field to be operated is generated. Further, in the combine, a data transmission unit 51a and a data reception unit which can be connected to the communication unit 81 (including the transmission unit 81a and the reception unit 81b) of the management server 8 through a data communication network such as a wireless public line or the Internet so as to be able to exchange data. 51b. In addition, when the combine is provided with a display unit 52 such as a liquid crystal display capable of displaying the grain component value at the time of grain harvest sent from the management server 8, the driver can select the grain component value during the harvesting operation. Is convenient and can be confirmed.

  The management server 8 includes a grain component value calculation unit 82 that obtains a grain component from the measurement value sent from the combine. Note that when the harvested grain is rice or wheat, the grain component that affects the taste is moisture or protein, and here, the grain component obtained by the grain component value calculation unit 82 is moisture and protein. . When obtaining the grain component value, the grain component value calculation unit 82 uses the measurement value output from the combine grain measurement unit 30 and sent to the management server 8 as an input value, and a specific grain component Use a function or table whose value is the output value. Such a function or table (simple one is also called a measurement line) is referred to herein as a measurement value / grain component value table for deriving a grain component value from a measurement value. Since the relationship between the measured value and the grain component value varies depending on the type and state of the grain being measured, in order to obtain an accurate grain component value, the optimum measurement for the grain to be measured Value / grain component value table (metering line) must be used. For this reason, the management server 8 includes a table management unit 83 for determining an optimum measurement value / grain component value table. The management server 8 receives the field identification information specifying the field sent from the combine. From this field identification information, the latest information on the harvested grain, for example, the type and / or variety of the grain can be acquired. For example, if the management server 8 has constructed a field database that records the type and / or variety of grains harvested in each field so as to be readable based on the field identification information, the table management unit 83 By accessing the database, the type and / or variety of grains to be harvested in the field to be processed can be read out. The table management unit 83 can generate or select a measurement value / grain component value table optimally based on the read grain type and / or variety. The grain component value calculation unit 82 obtains the grain component value from the measurement value sent from the combine using the optimum measurement value / grain component value table determined by the table management unit 83.

Two examples of the configuration adopted in the table management unit 83 in order to determine the optimum measurement value / grain component value table based on the type and / or variety of the grain are shown below.
(1) A large number of measurement value / grain component value tables are prepared in the table management unit 63 in advance, and the optimum measurement value / grain component value table for the field specified by the field identification information is extracted from these tables. In this case, extraction conditions created based on the type and / or variety of grains harvested in the field identified by the field identification information are used.
(2) Prepare only the reference measurement value / grain component value table that serves as a reference for the measurement value / grain component value table in advance, and select the optimum reference measurement value / grain component value table for the specified field. The reference measurement value / grain component value table is corrected and created. For example, a coefficient group of a function for obtaining a grain component value from the measured value (including a slope of the measurement line and a parallel movement amount) is determined based on the type and / or variety of the grain. Using this coefficient group, an optimal reference measurement value / grain component value table is created from the reference measurement value / grain component value table.
Of course, it is also possible to combine (1) and (2).

  As a grain measuring unit 30 that outputs a measurement value relating to a component of the grain supplied to the grain tank 16, the grain is temporarily stored in a temporary storage chamber that receives at least a part of the grain supplied to the grain tank 16. It is possible to employ an optical measuring device that outputs a measurement value based on spectroscopic measurement of light irradiated to the grains. In this case, it is possible to obtain the grain component value per unit mileage, that is, per small section of the field, by repeatedly calculating during the harvesting operation while temporarily storing the harvested grain. Can do. From such a grain component value per minute section, it is possible to create a distribution map of the grain component value in a specific field, and it is possible to realize precision farming.

  When the harvest is rice or wheat, the grain components that affect the taste are moisture and protein. From this, it is preferable that the grain measuring unit 30 can output measurement data relating to moisture and protein.

  It is also desired that the combine driver can confirm the grain component value of the harvested grain during the harvesting operation. For this reason, the grain component value (moisture or protein) obtained by the grain component value calculation unit 82 of the management server 8 is transmitted to the combine, and the grain component value is displayed on the display unit 52 such as a liquid crystal display provided in the combine. Is displayed. The grain component value obtained by the grain component value calculation unit 82 is also sent from the management server 8 to a computer installed at each farmhouse or a portable communication terminal held by a farm worker.

  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 crawler traveling self-removing combine, and FIG. 3 is a plan view. The combine is provided with a traveling machine body 10 configured to be self-propelled by a pair of left and right crawler traveling devices 12 driven by the engine 11. The reaping unit 14 that harvests the planted cereals supported by the front part of the body frame 13 of the traveling body 10, the threshing device 15 that threshs the harvested cereals, and the grains threshed by the threshing device 15 are stored. A grain tank 16, an unloader 17 that is a grain discharging device that discharges the grains in the grain tank 16 to the outside, and a driving control unit 19 including a driver seat 18 on which a driver is seated are provided. ing.

  As shown in FIGS. 2 and 3, the grain tank 16 is disposed on the right side of the machine body with respect to the threshing device 15 in the machine frame 13, and is located behind the engine 11. A lifting screw 26 is provided on the left side of the grain tank 16. The lifting screw 26 is disposed on the left side of the machine body in the grain tank 16. The lifting screw 26 lifts the grain conveyed from the threshing device 15 to the inlet 27. As shown in FIG. 4, the grains lifted up to the inlet 27 are splashed off from the inlet 27 by a rotary blade 28 that is provided integrally with the lifting screw 26 and is driven to rotate counterclockwise. It flies and falls in the grain tank 16 while being diffused over a wide area. Most of the grains supplied from the inflow port 27 are supplied to the internal space M in the grain tank 16. A grain measurement unit 30 that outputs measurement values relating to the components of the grain is disposed in the front part of the grain tank 16. The grain measuring unit 30 temporarily stores a part of the grain supplied from the inlet 27, irradiates the stored grain with a light beam, and returns a spectral measurement result of the returning light beam. Is output.

  As shown in FIG. 2 and FIG. 3, the bottom of the grain tank 16 is provided with a discharge auger 24 that is configured to discharge the grain stored in the grain tank 16 to the outside. It has been. The discharge auger 24 is operated by the driving force of the engine 11. The grain stored in the grain tank 16 is discharged from the rear part of the grain tank 16 by the discharge auger 24 and further discharged to the outside through the unloader 17.

  As shown in FIGS. 2 and 3, the front portion of the grain tank 16 is configured to measure the yield of the grain in the grain tank 16 based on the weight of the grain tank 16. A load cell is provided as the yield measuring device 70.

  As shown in FIG. 5, the grain measuring unit 30 is screwed to the front wall 16 a of the grain tank 16 via a vibration isolating rubber. The grain measurement unit 30 includes a measurement container 30A and a measurement unit 30B. As shown in FIGS. 6 and 7, the measurement unit 30 </ b> B includes a box-shaped housing 32 in which an optical probe 31 that acquires measurement data regarding grain moisture and protein component values is incorporated. The measurement container 30 </ b> A includes a temporary storage unit 33 for temporarily storing the grains for which the grain components are measured by the optical probe 31.

  The measurement container 30A is a cylinder having a rectangular cross section including a first wall 341 facing the inner space M of the grain tank 16, a pair of left and right side walls 343, and a second wall 342 facing the measurement unit 30B. Is the body. In this embodiment, the second wall 342 is also used as a vertical wall portion facing the inner space M of the housing 32. Of course, the second wall 342 may be provided individually. With such a structure of the measurement container 30 </ b> A, a vertically extending grain path 34 is created therein, and a temporary storage portion 33 is formed in the middle of the grain path 34. The grain path 34 has an upper inlet 34a for taking in the grain and a lower outlet 34b for discharging the grain.

  The temporary storage unit 33 is configured to temporarily store a part of the grain that has been transported from the threshing device 15 and jumped off by the rotary blade 28 (see FIG. 4). The temporary storage unit 33 takes in a part of the grain conveyed from the threshing device 15 from the intake 34 a formed in the upper part of the temporary storage unit 33 and temporarily stores it, and below the temporary storage unit 33. The grain stored in the temporary storage part 33 is discharged from the formed outlet 34 b to the internal space M in the grain tank 16. A storage amount detector 741 including a proximity sensor that detects the grain is provided on the side wall 343 of the measurement container 30 </ b> A at an upper portion of the temporary storage unit 33. A storage shutter 35 that closes or opens the discharge port 34 b is provided below the temporary storage unit 33. The optical probe 31 that detects the quality of the grains stored in the temporary storage unit 33 faces the temporary storage unit 33.

  The storage shutter 35 is configured as a plate-like swing type. The storage shutter 35 is switched between a storage closed position in a horizontal posture and a discharge open position in a downward vertical posture by a switching mechanism 36 configured by a cam or the like by driving a motor 37. The storage shutter 35 swings around a lateral support shaft 38 that intersects the opening / closing direction of the storage shutter 35. The support shaft 38 is supported by the first wall 341 of the measurement container 30A.

  FIG. 8 is a functional block diagram illustrating a configuration of a grain management system including the above-described combine and a management server 8 constructed in an agricultural management center in which many farmers who own or rent the combine are participating. is there. Each combine is provided with a control unit 5 for constructing a grain measuring unit 30, a yield measuring device 70, and a measurement control module 6 as a measurement control system. The control unit 5 includes a communication unit 51 including a data transmission unit 51a and a data reception unit 51b for exchanging data with the management server 8 via a wireless data communication network, a display unit 52 including a liquid crystal panel, and data input. An input signal processing unit 53 as an interface, a device control unit 54 for controlling various operating devices, a measurement control module 6 and the like are included. Each function of the measurement control module 6 substantially constructed through execution of the program includes a function based on the basic principle of measurement control described with reference to FIG.

  The input signal processing unit 53 includes a measurement value signal from the grain measurement unit 30 and the yield measurement device 70, and a storage completion signal (or a storage incomplete signal) from a storage amount detector 741, which is one of the sensor / switch group 74. ), An input operation signal from an artificial operation input device 71 such as a touch panel, detection signals from various sensors and switches, and the like are input. Further, a signal from a switch related to measurement control such as a measurement start switch (not shown) is also input. The signal input to the input signal processing unit 53 undergoes necessary preprocessing and is transferred to the measurement control module 6. The device control unit 54 has a control function for controlling various operating devices equipped in the combine. For example, an open / close control command is given to the motor 37 that opens / closes the shutter control unit. In this embodiment, the measurement by the grain measurement unit 30 is started by detecting a state in which the grain in the temporary storage unit 33 is stored in a predetermined amount or more based on a signal from the storage amount detector 741. When the measurement by the grain measuring unit 30 is completed, the storage shutter 35 is swung to the open position, and the grain stored in the temporary storage unit 33 is discharged. Next, the storage shutter 35 is swung to the closed position, and the process proceeds to the next measurement.

  The measurement control module 6 includes a field identification information management unit 61, a grain component value acquisition unit 62, a yield calculation unit 65, a display data generation unit 66, a harvest information recording unit 67, and a harvest information management unit 68.

  The farm field identification information management unit 61 determines a farm field from which the combine harvests the grains to harvest the grain, and manages the farm field identification information that identifies the farm field that has been confirmed. There are various methods for determining the field to be harvested. For example, (1) a field ID is received from a field ID holder installed in the field by short-range wireless communication or OCR, and a field to be harvested is determined based on the field ID. (2) Driver Visually confirm the actual field while referring to the photos and map, and input the field to be harvested through the input device 71 or the like. (3) When an accurate field map is created, For example, a field to be harvested is determined by matching with direction information (longitude and latitude) by GPS.

  On the other hand, the grain component value acquisition unit 62 manages the field identification information managed by the field identification information management unit 61 and the measurement value related to the grain component value, which is the measurement data output from the grain measurement unit 30. On the other hand, the grain component value of the harvested grain sent from the management server 8 is received.

  The yield calculator 65 calculates the yield from the measured value of the yield measuring device 70, which is a load cell, using the measured value / yield conversion table. In this embodiment, the yield calculation unit 65 calculates the yield per mileage by calculating the amount of increase in yield from the specified start time to the specified end time from the yield calculated at a predetermined sampling time. Has a function to calculate. The grain component value acquired by the grain component value acquisition unit 62 and the yield calculated by the yield calculation unit 65 are collected by the harvest information management unit 68 together with the harvest position (running position) and recorded in the harvest information recording unit 67. Is done. The grain component values (water and protein) and yield recorded in the harvest information recording unit 67 are converted into visual data by the display data generation unit 66 and displayed on the display unit 52. At that time, the grain component value and the yield can be displayed in mileage units or field units.

  In the management server 8, in order to obtain the grain component value from the field identification information sent from the combine and the measurement value related to the grain component, the field-specific grain information management unit 80, the grain component value calculation unit 82, A table management unit 83, a measured value / grain component value table unit 84, and a harvest information recording unit 87 are included.

  Based on the field identification information sent from the combine, the field-specific grain information management unit 80 identifies the field in which the combine is harvesting, and determines the type and variety of the harvested grain. For this reason, the grain information management unit 80 by field has a database that reads out the type and variety of the grain that is the work target, using the field identification information as an extraction condition. For example, if the type is rice, the type is Yamato Komachi 25. The table management unit 83 determines the optimum measurement value / grain component value table for the field to be harvested based on the type and variety of the grain and, if necessary, the region and the weather conditions of the year, etc. Set in the grain component value table unit 84. The grain component value calculation unit 82 uses the measurement value / grain component value table optimal for the harvest target field set in the measurement value / grain component value table unit 84 to send the measurement value from the combine. As a kernel component value, water and protein are obtained. The grain component values (water and protein) calculated by the grain component value calculation unit 82 are transmitted to the combine. Further, the grain component value is recorded in the harvest information recording unit 87 together with the yield transmitted from the combine in the management server 8. At that time, the grain component value and the yield can be linked to the harvesting position (traveling position) and recorded.

  In this embodiment, the table management unit 83 corrects the reference measurement value / grain component value table prepared in advance and derives the optimum reference measurement value / grain for deriving the grain component value in the field. A component value table is created and set in the measured value / grain component value table unit 64. For example, if S is a component value, X1, X2,... Is a spectral result group, and F is a reference measurement value / grain component value table (measuring line), the reference measurement value / grain component value table is S = F (X1, X2,..., Α1, α2), and when the coefficient values of α1 and α2 are given by the type and variety of the kernel, the only optimal reference measurement value / grain component value The table can be determined.

[Another embodiment]
(1) The division of the functional units in the functional block diagram shown in FIG. 8 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.
(2) In the above-described embodiment, the yield measurement was performed based on the weight increase of the grain tank 16. Instead of this, yield measurement also uses a measurement container that temporarily stores a predetermined amount of grain, and calculates the yield per unit travel (area) based on the time until the predetermined amount of grain is stored and the vehicle speed. You may employ | adopt the structure to do. In that case, the measurement unit for yield measurement and the measurement container for grain component measurement may be integrated with each other, or may be separate structures independent of each other.
(3) In the above-described embodiment, the communication unit 81 of the management server 8 and the communication unit 51 of the control unit 5 are directly connected for data exchange. Instead, a mobile communication terminal such as a smartphone brought by the driver may be interposed between the communication unit 81 of the management server 8 and the communication unit 51 of the control unit 5. At this time, it is convenient if at least a part of the content displayed on the display unit 52 is also displayed on the display screen of the mobile communication terminal.

  The present invention can be used not only for a self-removing combine but also for a full throwing type combine. In addition to the crawler travel combine, it can also be used for a wheel travel combine.

15: Threshing device 16: Kernel tank 30: Kernel measuring unit 33: Temporary storage unit 35: Storage shutter 5: Control unit 51: Communication unit 51a: Data transmission unit 51b: Data reception unit 52: Display unit 6: Measurement control Module 61: Field identification information management unit 62: Grain component value acquisition unit 63: Table management unit 65: Yield calculation unit 66: Display data generation unit 67: Harvest information recording unit 68: Harvest information management unit 70: Yield measuring device 8 : Management server 80: Grain information management unit 81 by field: Communication unit 81a: Transmission unit 81b: Reception unit 82: Grain component value calculation unit 83: Table management unit 84: Measurement value / grain component value table unit 87: Harvest information recording department

Claims (8)

Combine harvester that harvests grains from the field while running and threshing the harvested grains in a grain tank, and a management server that manages the quality of the grains harvested by the combine In the provided grain management system,
The combine includes a grain measurement unit that outputs a measurement value relating to a component of the grain supplied to the grain tank, field identification information that identifies the field, and the measurement value to the management server via a communication line. A data transmission unit for transmission,
The management server includes a receiving unit that receives the field identification information and the measurement value from the combine, and a measurement value and a grain component for deriving a grain component value from the measurement value based on the field identification information A table management unit for determining a value table; and a grain component value calculation unit for obtaining a grain component value from the measurement value using the measurement value / grain component value table determined by the table management unit. , Kernel management system. The management server comprises a field database that records the type and / or variety of grains harvested in each field based on the field identification information so as to be readable.
The grain management system according to claim 1, wherein the table management unit determines an optimum measurement value / grain component value table based on a grain type and / or variety read from the field database. . The management server includes a table storage unit that stores a plurality of measurement value / grain component value tables associated with harvested grain types and / or varieties, in an extractable manner,
The measured value / grain component value table extracted from the table storage unit using the grain type and / or variety read from the field database as a search condition, and the optimum measured value / grain component value table The grain management system of Claim 2 determined as. The management server has a reference measurement value / grain component value table serving as a reference for the measurement value / grain component value table,
The table management unit corrects the reference measurement value / grain component value table based on the grain type and / or variety read from the field database, so that the optimum measurement value / grain component is obtained. The grain management system according to claim 2, wherein a value table is determined.   The said management server is provided with the transmission part which transmits the said grain component value calculated | required by the said grain component value calculating part to the said combine, The grain management system as described in any one of Claim 1 to 4 .   A temporary storage chamber for receiving at least a part of the grain supplied to the grain tank is provided, and the grain measuring unit irradiates the grain temporarily stored in the temporary storage chamber. The grain management system according to any one of claims 1 to 5, wherein the measurement value is output based on spectroscopic measurement, and the grain component value calculation unit obtains at least moisture from the measurement value.   The grain management system according to claim 6, wherein the grain component value calculation unit derives a protein component value from the measurement value.   The said combine is provided with the receiving part which receives the said grain component value transmitted from the transmission part of the said management server, and the display part which can display the said grain component value. The grain management system according to one item.

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