Agricultural work management system, agricultural work management method, and agricultural work management program

Abstract

To provide a farm work management system, a farm work management method and a farm work management program, with which while acquiring farm work information that includes yield amount information from which a high-definition yield amount map can be created, it is possible to reduce the burdens of a data processing unit when utilizing the farm work information.SOLUTION: A management server 2 comprises an acquisition processing unit 211, an extraction processing unit 212 and an output processing unit 216. The acquisition processing unit 211 acquires farm work information D1 that includes the position information of a sampling interval T1 and yield amount information from a combine 4. The extraction processing unit 212 extracts the extraction information D2 of a sampling interval T2 from the farm work information D1, which is longer than the sampling interval T1. The output processing unit 216 outputs the traveling trajectory R1 of the combine 4 on the basis of the extraction information D2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a farm work management system, a farm work management method, and a farm work management program that manage farm work information acquired from a harvester that performs harvesting work in a farm field. [Background technology]

[0002] Some harvesters, such as combines, that perform harvesting work in farm fields are equipped with a yield detection unit (yield sensor) that detects the yield of the harvested crops and a position detection unit that detects the position of the harvester.For example, Patent Document 1 discloses a system in which the combine is caused to travel within the farm field while measuring its position and perform harvesting work, and positioning data (location information) and harvest yield data (harvest yield information) obtained at predetermined times are associated and recorded in a recording unit, and after work is completed, a travel trajectory of the combine is created based on this information, and the farm field is divided into a mesh-like pattern and the harvest yield for each of multiple plots is calculated, and a harvest yield map showing the distribution of the harvest yield for each plot is created. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-109791 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional technology, if the sampling interval for acquiring location information and yield information is set short, yield information can be acquired frequently, increasing the number of samples within each plot and enabling the creation of a high-resolution yield map. However, because a large amount of location information is also acquired to create a travel trajectory, creating a combine harvester travel trajectory based on this location information can result in an increased load on the data processing unit (control unit). This problem is not limited to creating a travel trajectory, but can also occur when creating various evaluation information for evaluating the combine harvester's operating status. For example, creating a graph showing changes in the combine harvester's speed during harvesting operations can result in an increased load on the data processing unit because the graph is created based on a large amount of location information and vehicle speed information. Thus, in the conventional technology, when agricultural work information including yield information capable of creating a high-resolution yield map is acquired, the load on the data processing unit increases when the agricultural work information is used.

[0005] The object of the present invention is to provide an agricultural work management system, an agricultural work management method, and an agricultural work management program that can acquire agricultural work information including yield information that can be used to create a high-resolution yield map, while reducing the load on the data processing unit when using the agricultural work information. [Means for solving the problem]

[0006] The farm work management system according to the present invention comprises an acquisition processing unit, an extraction processing unit, a creation processing unit, and an output processing unit. The acquisition processing unit acquires first farm work information from a first harvester harvesting crops in a farm field, the first farm work information including location information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the location of the first harvester. The extraction processing unit extracts second farm work information at a second sampling interval longer than the first sampling interval from the first farm work information acquired by the acquisition processing unit. The creation processing unit creates a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the second farm work information extracted by the extraction processing unit. The output processing unit outputs the travel trajectory created by the creation processing unit.

[0007] The agricultural work management method of the present invention is a method executed by one or more processors, which includes the following steps: acquiring first agricultural work information from a first harvester performing crop harvesting work in a field, the first agricultural work information including location information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the location of the first harvester; extracting second agricultural work information at a second sampling interval longer than the first sampling interval from the first agricultural work information; creating a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the second agricultural work information; and outputting the travel trajectory.

[0008] The agricultural work management program of the present invention is a program for causing one or more processors to execute the following steps: acquire first agricultural work information from a first harvester performing crop harvesting work in a field, the first agricultural work information including location information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the location of the first harvester; extract second agricultural work information at a second sampling interval longer than the first sampling interval from the first agricultural work information; create a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the second agricultural work information; and output the travel trajectory. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide an agricultural work management system, an agricultural work management method, and an agricultural work management program that can acquire agricultural work information including yield information that can create a high-resolution yield map, while reducing the load on the data processing unit when using the agricultural work information. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing the system configuration of a farm work management system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a side view showing an example of a combine harvester according to an embodiment of the present invention. [Figure 3] FIG. 3 is a plan view showing an example of a combine harvester according to an embodiment of the present invention. [Figure 4] FIG. 4 is a diagram showing an example of a work path for harvesting work by a combine in a farm field according to an embodiment of the present invention. [Figure 5] FIG. 5 is a diagram showing an example of farm work information that the management server according to the embodiment of the present invention acquires from the combine harvester. [Figure 6] FIG. 6 is a diagram showing an example of extracted information stored in the management server according to the embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing an example of harvest yield information stored in the management server according to the embodiment of the present invention. [Figure 8] FIG. 8 is a diagram schematically showing a state in which a farm field according to an embodiment of the present invention is divided into a plurality of sections. [Figure 9] FIG. 9 is a diagram showing an example of a harvest yield map created in the farm work management system according to an embodiment of the present invention. [Figure 10] FIG. 10 is a diagram showing an example of a travel locus created in the farm work management system according to the reference embodiment. [Figure 11] FIG. 11 is a diagram showing an example of a travel locus created in the farm work management system according to the embodiment of the present invention. [Figure 12]FIG. 12 is a diagram showing an example of a harvest yield map created in the farm work management system according to the embodiment of the present invention. [Figure 13] FIG. 13 is a diagram showing an example of a travel locus map created in the farm work management system according to the embodiment of the present invention. [Figure 14] FIG. 14 is a flowchart showing an example of the procedure of a farm work management process executed in the farm work management system according to an embodiment of the present invention. [Figure 15] FIG. 15 is a diagram showing an example of a graph of changes in vehicle speed created in the farm work management system according to the reference embodiment. [Figure 16] FIG. 16 is a diagram showing an example of a graph of changes in vehicle speed created in the farm work management system according to the embodiment of the present invention. [Figure 17] FIG. 17 is a diagram showing the configuration of a management server in a farm work management system according to another embodiment of the present invention. [Figure 18] FIG. 18 is a diagram showing an example of a harvest yield map created in a farm work management system according to another embodiment of the present invention. [Figure 19] FIG. 19 is a diagram showing an example of a harvest information page displayed on a user terminal according to an embodiment of the present invention. [Figure 20] FIG. 20 is a diagram showing an example of a harvest information page displayed on a user terminal according to an embodiment of the present invention. [Figure 21] FIG. 21 is a diagram showing an example of a harvest information page displayed on a user terminal according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] The following embodiment is an example of the present invention and does not limit the technical scope of the present invention.

[0012] As shown in FIG. 1, a farm work management system 1 according to an embodiment of the present invention includes a management server 2, a user terminal 3, and a combine harvester 4. The management server 2, the user terminal 3, and the combine harvester 4 can communicate with each other via a communication network N1. For example, the management server 2 and the combine harvester 4 can communicate with each other via a mobile phone network, a packet network, or a wireless LAN. The management server 2 and the user terminal 3 can also communicate with each other via the Internet, a LAN, a WAN, or a public telephone line.

[0013] There may be one or more combine harvesters 4. When the farm work management system 1 is equipped with multiple combine harvesters 4, the multiple combine harvesters 4 cooperate to perform harvesting work to harvest crops in the same farm field F1.

[0014] The management server 2 is a device that manages the yield of crops harvested by the combine harvester 4. The user terminal 3 is an operation terminal operated by a user. For example, the user can access a website (e.g., an agricultural support site) for an agricultural support service provided by the management server 2 on the user terminal 3 and display a web page (described below) containing information such as the operating status and yield of the combine harvester 4.

[0015] [Combine 4] As shown in Figures 1, 2 and 3, the combine harvester 4 includes a traveling device 41, a reaping device 42, a threshing device 43, a sorting device 44, a storage device 45, a power unit 46, a driving unit 47, a vehicle control device 48, an information recording device 49, and the like.

[0016] The vehicle control device 48 is a computer system including one or more processors and storage memories such as non-volatile memory and RAM, and controls the operation of the combine harvester 4 in response to various user operations on the combine harvester 4.

[0017] The traveling device 41 can turn the combine harvester 4 in the forward / backward and left / right directions. For example, as shown in Fig. 4, the combine harvester 4 performs harvesting work while turning right from the outside to the inside of the field F1. The travel path of the combine harvester 4 is not limited to the path shown in Fig. 4.

[0018] The reaping device 42 reaps the stalks in the field F1. The reaping device 42 includes a reel 421, a cutter 422, an auger 423, a transport conveyor 424, and a rotor 425. The reel 421 guides the stalks in the field F1 to the cutter 422 by rotating. The cutter 422 cuts the stalks guided by the reel 421. The auger 423 is a cross-feed screw that collects the stalks cut by the cutter 422 in a predetermined position.

[0019] The transport conveyor 424 transports the stalks collected by the auger 423 to the rotor 425. The rotor 425 sends the stalks transported by the transport conveyor 424 to the threshing device 43.

[0020] The threshing device 43 performs a threshing process on the stalks cut by the reaping device 42. The threshing process separates the stalks containing grains from the stalks. The stalks drop from the threshing device 43 to a sorting device 44 below.

[0021] The sorting device 44 performs a sorting process to sort grains from the threshed grains that drop from the threshing device 43. The sorting device 44 sorts grains from the threshed grains by blowing air onto the threshed grains from below at an angle and sieving the threshed grains.

[0022] The threshing device 43 performs a threshing process on the stalks while transporting the stalks from the front to the rear of the threshing device 43. Similarly, the sorting device 44 performs a sorting process on the stalks while transporting the stalks from the front to the rear of the sorting device 44.

[0023] The storage device 45 includes a vertical transport duct 451, a vertical transport conveyor 452, a grain tank 453, and a discharge auger 454. The vertical transport duct 451 is a duct that communicates with the sorting device 44 and an inlet at the top of the grain tank 453. The vertical transport conveyor 452 is a screw conveyor that rotates within the vertical transport duct 451 to transport grains from the sorting device 44 into the grain tank 453. The discharge auger 454 discharges the grains in the grain tank 453 to any location around the combine 4.

[0024] The power unit 46 is a drive source for the traveling device 41, the reaping device 42, the threshing device 43, the sorting device 44, and the storage device 45. The power unit 46 is provided with an engine (not shown), such as a diesel engine, as a power source. The power unit 46 may also be provided with an electric motor as the power source. The power unit 46 may also be provided with a hybrid drive source including the engine and the electric motor.

[0025] The driving section 47 is provided with a driver's seat where a user sits, and operating devices such as a steering wheel, various operating levers, and various operating switches operated by the user. For example, the operating devices include an engine ON / OFF key (not shown). The engine ON / OFF key is a key switch or a button switch for switching between starting and stopping an engine mounted on the combine harvester 4. The vehicle control device 48 starts the engine when the engine ON / OFF key is switched on, and stops the engine when the engine ON / OFF key is switched off.

[0026] The information recording device 49 is a communication terminal including a control unit 491, a memory unit 492, a communication unit 493, a position detection unit 494, and a harvest yield detection unit 495. The control unit 491, the memory unit 492, the communication unit 493, the position detection unit 494, and the harvest yield detection unit 495 may be distributed and arranged at different positions in the combine harvester 4. The combine harvester 4 of this embodiment is a combine harvester equipped with a function for detecting the harvest yield, and corresponds to the first harvester of the present invention.

[0027] The control unit 491 is a computer system including one or more processors and storage memories such as nonvolatile memory and RAM. The storage unit 492 is a nonvolatile memory that stores a control program for causing the control unit 491 to execute predetermined processes, and data such as location information and harvest yield information, which will be described later.

[0028] The communication unit 493 is capable of transmitting and receiving various types of data to and from the vehicle control device 48 via short-range wireless communication or wired communication. Specifically, the control unit 491 is capable of acquiring operation information indicating various operating states of the combine 4 from the vehicle control device 48 via the communication unit 493.

[0029] The operation information includes steering operation information indicating the steering angle, shift information indicating the operation state of the shift lever, etc. The operation information also includes engine information indicating the ON / OFF state of the engine ON / OFF key of the combine harvester 4. Furthermore, the operation information may include engine speed information indicating the engine speed, vehicle speed information, and brake information indicating the brake operation state.

[0030] The communication unit 493 is also capable of transmitting and receiving various types of data to and from the management server 2 via the communication network N1. As shown in FIG. 1, the management server 2 is a computer system including a control unit 21 and a storage unit 22. In the management server 2, the control unit 21 accumulates and stores in the storage unit 22 the location information, harvest yield information, operation information, and the like that it receives from the combine harvester 4 via the communication network N1. The control unit 21 is also capable of displaying or transmitting the location information, harvest yield information, operation information, and the like that are stored in the storage unit 22 in response to a user operation.

[0031] The position detection unit 494 detects the position information of the combine harvester 4 on which the information recording device 49 is mounted, using a satellite positioning system such as a Global Navigation Satellite System (GNSS). The position information includes latitude and longitude information indicating the position of the combine harvester 4. The method of acquiring the position information of the combine harvester 4 by the position detection unit 494 is not particularly limited. The position information is not limited to latitude and longitude, and may be information in other forms that can identify the position of the combine harvester 4. In another embodiment, the position information may be information indicating a relative position with respect to a specific position, such as the work start position or engine start position of the combine harvester 4, as the reference position.

[0032] The harvest yield detection unit 495 is a sensor (grain sensor) that detects the harvest yield (grain amount) of the crop harvested by the combine harvester 4. The harvest yield detection unit 495 is attached, for example, to the upper surface of the grain tank 453 (see FIG. 3). The grains obtained by the threshing device 43 and the sorting device 44 are transported toward the grain tank 453 by the vertical transport conveyor 452. The harvest yield detection unit 495 is equipped with an impact detection unit such as a strain gauge or a piezoelectric element, and detects the impact force when the transported grains collide. The harvest yield detection unit 495 detects the harvest yield (detection value) based on this impact force. Note that the method by which the harvest yield detection unit 495 obtains the harvest yield of the combine harvester 4 is not particularly limited.

[0033] The control unit 491 executes the following various processes. Specifically, the control unit 491 executes a timekeeping process to measure the current time. The time includes the year, month, day, hour, minute, and second. The information recording device 49 is connected to the battery, and the control unit 491 can execute the timekeeping process using power supplied from the battery even when the engine of the combine 4 is turned off.

[0034] The control unit 491 also executes an information acquisition process to acquire the position information, the harvest yield information, and the operation information of the combine harvester 4. Specifically, the control unit 491 acquires the position information from the position detection unit 494, acquires the harvest yield information from the harvest yield detection unit 495, and acquires the operation information from the vehicle control device 48 at a preset information acquisition interval based on the measured time.

[0035] The control unit 491 records, in the storage unit 492, the position information acquired at a preset sampling interval T1 (first sampling interval of the present invention). The control unit 491 also records, in the storage unit 492, the harvest yield information acquired at the preset sampling interval T1. The control unit 491 also records, in the storage unit 492, the operation information acquired at the preset sampling interval T1. The sampling interval T1 is set based on at least the harvest yield acquisition interval (e.g., 1 to 5 seconds) required to create a harvest yield map, and is set to an interval shorter than the acquisition interval (e.g., 1 minute) required to create a travel trajectory of the combine harvester 4. In this embodiment, the control unit 491 records, in the storage unit 492, the position information, harvest yield information, and operation information at 5-second intervals.

[0036] FIG. 5 is a diagram showing an example of farm work information D1, including the location information, the harvest yield information, the operation information, and the time information, stored in the storage unit 492. In FIG. 5, the location information is represented by X1 to X17 and Y1 to Y17, but the actual location information includes, instead of X1 to X17 and Y1 to Y17, numerical values (latitude and longitude) indicating the location of the combine harvester 4. Also, in FIG. 5, the harvest yield information is represented by E1 to E17, but the actual harvest yield information includes, instead of E1 to E17, numerical values (weight) indicating the detection values detected by the harvest yield detection unit 495. Also, in FIG. 5, the vehicle speed information (an example of operation information) is represented by V1 to V17, but the actual vehicle speed information includes, instead of V1 to V17, numerical values (speed) indicating the detection values detected by a vehicle speed sensor (not shown). The control unit 491 executes a process of acquiring the position information, the harvest yield information, and the operation information and recording them in the memory unit 492 while the engine ON / OFF key of the combine 4 is in the ON state and the engine is in the ON state.

[0037] Furthermore, when the engine ON / OFF key of the combine harvester 4 is switched off and the engine is turned off, the control unit 491 transmits the farm work information D1, which includes the location information, the harvest yield information, the operation information, and the time information recorded in the memory unit 492, to the management server 2 and ends the information recording process. Furthermore, when the control unit 491 receives a reception confirmation signal for the farm work information D1 from the management server 2, it deletes the farm work information D1 from the memory unit 492.

[0038] In this way, the combine harvester 4 is equipped with an information recording device 49, which acquires the position information, harvest yield information, and operation information corresponding to the harvesting work, records them in the memory unit 492, and transmits the information (farm work information D1) stored in the memory unit 492 to the management server 2 when the engine is switched off. Note that there are no particular limitations on the timing of transmitting the farm work information D1 to the management server 2.

[0039] In conventional technology, if the sampling interval for acquiring the location information and the yield information is set short, the yield information can be acquired frequently, increasing the number of samples within each plot and enabling the creation of a high-resolution yield map. However, because a large amount of location information is also acquired to create a travel path, creating a combine harvester travel path based on this location information can result in an increased load on the data processing unit (control unit) (see Figure 10). This problem is not limited to creating a travel path, but can also occur when creating various evaluation information for evaluating the combine harvester's work status (work history). For example, creating a graph showing changes in the combine harvester's speed during harvesting operations can result in an increased load on the data processing unit because the graph is created based on a large amount of location information and vehicle speed information (see Figure 15). Thus, in the conventional technology, when agricultural work information including yield information that can be used to create a high-resolution yield map is acquired, the load on the data processing unit increases when the agricultural work information is used. As described above, in the conventional technology, when farm work information including yield information that can be used to create a high-resolution yield map is acquired, a problem occurs in that the load on the data processing unit increases when the farm work information is used. In contrast, the farm work management system 1 according to this embodiment can acquire farm work information including yield information that can be used to create a high-resolution yield map, while reducing the load on the data processing unit when the farm work information is used. The specific configuration of the management server 2 is described below.

[0040] [Management Server 2] 1, the management server 2 is a server including a control unit 21, a storage unit 22, an operation display unit 23, and a communication unit 24. The management server 2 is not limited to a single computer, but may be a computer system in which multiple computers operate in cooperation with each other. Furthermore, the various processes executed by the management server 2 may be executed in a distributed manner by one or multiple processors.

[0041] The communication unit 24 is a communication interface that connects the management server 2 to the communication network N1 via a wired or wireless connection and performs data communication in accordance with a predetermined communication protocol with one or more external devices such as combines 4 and user terminals 3 via the communication network N1.

[0042] The operation display unit 23 is a user interface that includes a display unit such as a liquid crystal display or an organic EL display that displays various information, and an operation unit such as a touch panel, a mouse, or a keyboard that accepts operations.

[0043] The storage unit 22 is a non-volatile storage unit such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) that stores various types of information. The storage unit 22 stores control programs such as a farm work management program that causes the control unit 21 to execute the farm work management process (see FIG. 14 ), which will be described later. For example, the farm work management program is non-temporarily recorded on a computer-readable recording medium such as a CD or DVD, and is read by a reading device (not shown) such as a CD drive or DVD drive provided in the management server 2 and stored in the storage unit 22. The farm work management program may also be downloaded from a server (not shown) to the management server 2 via the communication network N1 and stored in the storage unit 22.

[0044] The storage unit 22 also includes a farm work information database DB1 that stores farm work information D1 transmitted from the combine harvester 4, and an extracted information database DB2 that stores predetermined information extracted from the farm work information database DB1 (extracted information D2 (see FIG. 6)). The farm work information database DB1 is an example of a first storage unit of the present invention, and the extracted information database DB2 is an example of a second storage unit of the present invention.

[0045] When the control unit 21 acquires the farm work information D1 from the combine harvester 4, it stores the farm work information D1 in the farm work information database DB1 (see FIG. 5).

[0046] Furthermore, when the control unit 21 acquires the farm work information D1 from the combine harvester 4, it extracts the time information, the location information, and the operation information from the farm work information D1 at a predetermined sampling interval T2 (the second sampling interval of the present invention), and stores the extracted information D2 in the extracted information database DB2. FIG. 6 is a diagram showing an example of the extracted information D2. The sampling interval T2 is set, for example, to the interval at which location information and operation information required to generate evaluation information for evaluating the work status of the combine harvester 4 are acquired. For example, the sampling interval T2 is set to the interval (e.g., one-minute interval) at which location information required to generate a travel trajectory of the combine harvester 4 is acquired. As shown in FIG. 6, the extracted information D2 registers the time information, the location information, and the vehicle speed information (an example of operation information) at one-minute intervals, which are included in the farm work information D1 (see FIG. 5). Note that the extracted information D2 does not necessarily include harvest yield information. That is, the farm work information D1 includes the time information, the location information, the harvest yield information, and the operation information, and the extracted information D2 includes the time information, the location information, and the operation information.

[0047] The memory unit 22 also stores data on harvest yield information D3 (see FIG. 7) relating to the harvest yield for each section K into which the field F1 is divided. The control unit 21 calculates and registers the harvest yield (for example, average harvest yield) for each section K based on the position information and the harvest yield information acquired from the combine 4.

[0048] Here, a harvest yield map M1 (also called a yield map) that shows the distribution of harvest yields within the field F1 is used to evaluate the harvest status of the field F1 and to plan harvest work for the next year. By checking the harvest yield map M1, the user can understand the harvest status of the entire field F1.

[0049] The yield map M1 is created by dividing the entire field F1 into a plurality of sections K in a mesh pattern and calculating the yield (average yield, etc.) of each section K. Figure 8 shows a schematic diagram of the field F1 divided into a plurality of sections K. For example, each section K is a rectangular area of 5 m x 5 m. Note that the shape and size of each section K are not particularly limited. In Figure 8, coordinate information in the X and Y directions (section number) is added as identification information for each section K.

[0050] FIG. 7 is a diagram showing an example of harvest yield information D3. As shown in FIG. 7, harvest yield information D3 includes information such as the corresponding "plot number" and "harvest yield information" for each plot of field F1. The plot number is identification information for plot K (see FIG. 8). The harvest yield information is calculated by the control unit 21 based on the position information and harvest yield information acquired from the combine harvester 4. The harvest yield information is registered for each plot K. For each plot K, the control unit 21 acquires harvest yield information (such as harvest yield information E1 in FIG. 5) at 5-second intervals corresponding to multiple sampling positions within plot K, and calculates, for example, the harvest yield per unit area (g / m 2 ) is calculated and recorded in the harvest yield information of the harvest yield information D3. Note that each piece of harvest yield information registered in the harvest yield information D3 may be the total harvest yield for each section K.

[0051] The control unit 21 calculates and registers the harvest yields corresponding to all the sections K obtained by dividing the field F1, and stores the calculated harvest yield information D3 in the storage unit 22.

[0052] In another embodiment, some or all of the farm work information D1, extraction information D2, and harvest yield information D3 may be stored in another server accessible from the management server 2 via the communication network N1. In this case, the control unit 21 of the management server 2 may acquire the information from the other server and execute various processes such as the farm work management process (see FIG. 14) described below. For example, at least one of the farm work information database DB1 and the extraction information database DB2 may be stored in a data server accessible from the management server 2 via the communication network N1.

[0053] The storage unit 22 also stores layout data and image data for generating various web pages included in the website (agricultural support site) displayed on the user terminal 3, such as a harvest information page P1 (see FIG. 12), a travel track page P2 (see FIG. 13), farm field information pages P3 to P5 (FIGS. 19 to 21), and a settings page (not shown). In this embodiment, the control unit 21 of the management server 2 can generate the various web pages and send information about the web pages to the user terminal 3, thereby causing the user terminal 3 to display the various web pages. In another embodiment, the control unit 21 of the management server 2 can cause the control unit 31 of the user terminal 3 to display the various web pages by sending data necessary for displaying the various web pages to the user terminal 3.

[0054] The harvest information page P1, the travel locus page P2, and the farm field information pages P3 to P5 are displayed on the user terminal 3 by logging in to the agricultural support site using the user terminal 3.

[0055] As shown in FIG. 1, the control unit 21 of the management server 2 according to this embodiment includes various processing units, such as an acquisition processing unit 211, an extraction processing unit 212, a storage processing unit 213, a harvest yield calculation processing unit 214, a creation processing unit 215, and an output processing unit 216. The control unit 21 functions as the various processing units by executing various processes in accordance with the agricultural work management program using the CPU. Some or all of the processing units may be configured as electronic circuits. The agricultural work management program may also be a program for causing multiple processors to function as the processing units.

[0056] The acquisition processing unit 211 acquires agricultural work information D1 (an example of the first agricultural work information of the present invention) from a combine harvester 4 harvesting crops in the field F1, the agricultural work information D1 including the location information of the combine harvester 4, harvest yield information corresponding to the location of the combine harvester 4, and operation information of the combine harvester 4. Specifically, the acquisition processing unit 211 acquires agricultural work information D1 including the location information, the harvest yield information, and the operation information acquired at a sampling interval T1 (here, every 5 seconds). The acquisition processing unit 211 is an example of the acquisition processing unit of the present invention. For example, the agricultural work information D1 accumulated in the combine harvester 4 from the time the engine of the combine harvester 4 starts until it stops is transmitted to the management server 2 when the engine of the combine harvester 4 is turned off. In this way, the acquisition processing unit 211 acquires the agricultural work information D1 from the combine harvester 4. The acquisition processing unit 211 stores the agricultural work information D1 acquired from the combine harvester 4 in an agricultural work information database DB1 (see FIG. 5).

[0057] The extraction processing unit 212 extracts agricultural work information (an example of second agricultural work information of the present invention) including the time information, the location information, and the operation information at a predetermined sampling interval T2 from the agricultural work information D1 acquired by the acquisition processing unit 211. Specifically, the extraction processing unit 212 extracts the time information, the location information, and the operation information at a sampling interval T2 (a second sampling interval of the present invention) that is longer than the sampling interval T1 at which the control unit 491 of the combine harvester 4 acquires the location information, the harvest yield information, and the operation information from the agricultural work information D1. In this embodiment, the extraction processing unit 212 extracts the time information, the location information, and the operation information at one-minute intervals that are longer than the five-second interval at which the control unit 491 of the combine harvester 4 acquires the location information, the harvest yield information, and the operation information from the agricultural work information D1. The extraction processing unit 212 is an example of an extraction processing unit of the present invention.

[0058] The storage processing unit 213 registers the farm work information (extracted information D2) including the time information, the location information, and the operation information extracted by the extraction processing unit 212 in the extracted information database DB2 by associating these pieces of information with each other (see FIG. 6). The extracted information D2 is an example of the second farm work information of the present invention.

[0059] The harvest yield calculation processing unit 214 calculates the harvest yield for each of the multiple plots K in the field F1 based on the farm work information D1 (see FIG. 5) acquired by the acquisition processing unit 211. For each plot K, the harvest yield calculation processing unit 214 acquires harvest yield information corresponding to multiple sampling positions within the plot K, and calculates, for example, the harvest yield per unit area (g / m 2 ) The harvest yield calculation processing unit 214 calculates the harvest yield for each section K based on the position information and the harvest yield information acquired at sampling intervals T1 (for example, every 5 seconds). The harvest yield calculation processing unit 214 registers the calculated harvest yield information in harvest yield information D3 (see FIG. 7). The harvest yield calculation processing unit 214 is an example of the harvest yield calculation processing unit of the present invention.

[0060] The creation processing unit 215 creates a yield map M1 for multiple sections K in the field F1 based on the yield calculated by the yield calculation processing unit 214. Specifically, the creation processing unit 215 creates the yield map M1 based on the yield information for each section K registered in the yield information D3. FIG. 9 shows an example of the yield map M1. The creation processing unit 215 creates a yield image (yield map M1) by associating colors such as black to white with yield values based on the yield information registered in the yield information D3. In the example shown in FIG. 9, for each section K, a lighter color indicates a lower yield, and a darker color indicates a higher yield. This makes it possible to create a yield map M1 for the entire field F1. Furthermore, because the yield map M1 is created based on the position information and the yield information acquired at a short sampling interval T1 (for example, every 5 seconds), a highly reliable yield map M1 can be created. Furthermore, by increasing the number of sections K (number of divisions) in the field F1, a high-resolution yield map M1 can be created. Note that the creation processing unit 215 may or may not display numerical data of the yield for each section K on the yield map M1.

[0061] The creation processing unit 215 also creates evaluation information for evaluating the work status (work history) of the combine harvester 4 based on extraction information D2 (see FIG. 6) including the time information, the location information, and the operation information extracted by the extraction processing unit 212. The evaluation information includes information indicating changes in the work status (performance), such as the travel path, vehicle speed, RPM, brake operation, steering operation, and battery voltage of the combine harvester 4. The creation processing unit 215 creates this evaluation information using extraction information D2 (see FIG. 6), which has a smaller amount of data than the farm work information D1 (see FIG. 5).

[0062] Here, the travel path of the combine harvester 4 is taken as an example of the evaluation information. As shown in FIG. 4, the combine harvester 4 performs harvesting work by turning rightward from the outside to the inside of the field F1. The control unit 491 of the combine harvester 4 acquires position information of the positions where the combine harvester 4 travels during harvesting work at sampling intervals T1 and records the information in the storage unit 492. Here, if the creation processing unit 215 creates the travel path of the combine harvester 4 using, for example, the position information at sampling intervals T1 (see FIG. 5), a detailed (high-resolution) travel path R1 is created as shown in FIG. 10. The travel path R1 shown in FIG. 10 allows for a detailed understanding of the travel path of the combine harvester 4. However, the large amount of data increases the load on the control unit 21, which may result in problems such as a long time required to create the travel path R1 or a long time required to display the travel path page P2 corresponding to the created travel path R1 on the user terminal 3.

[0063] In contrast, in this embodiment, the creation processing unit 215 creates the traveling locus R1 of the combine harvester 4 using position information (see FIG. 6) with a sampling interval T2 that is longer than the sampling interval T1. Therefore, as shown in FIG. 11, the traveling locus R1 can be created with a small amount of data. This reduces the load on the control unit 21, allowing the traveling locus R1 to be created quickly, and also allowing the traveling locus page P2 (see FIG. 13) corresponding to the created traveling locus R1 to be displayed quickly on the user terminal 3. Note that in FIGS. 10 and 11, black dots schematically indicate sampling positions of the position information, and the traveling locus R1 is created by connecting the positions of the black dots (sampling positions).

[0064] The creation processing unit 215 may create the travel locus R1 of the combine harvester 4 using both the position information at the sampling interval T2 (see FIG. 6) and the position information at the sampling interval T1 (see FIG. 5). For example, if the travel state of the combine harvester 4 is going straight, the creation processing unit 215 acquires the position information at the sampling interval T2 from the extraction information D2 (see FIG. 6), and if the travel state of the combine harvester 4 is turning, the creation processing unit 215 acquires the position information at the sampling interval T1 from the farm work information D1 (see FIG. 5), and creates the travel locus R1 of the combine harvester 4 using both pieces of position information. This reduces the accuracy of the travel locus for the straight-line portion of the travel locus of the combine harvester 4, but can increase the accuracy of the travel locus for the turning portion. The creation processing unit 215 is an example of a creation processing unit of the present invention.

[0065] The output processing unit 216 outputs the yield map M1 created by the creation processing unit 215. The output processing unit 216 also outputs the evaluation information created by the creation processing unit 215. Specifically, the output processing unit 216 outputs the yield map M1 (see FIG. 9) created by the creation processing unit 215 to the user terminal 3. For example, as shown in FIG. 12, the output processing unit 216 displays the yield map M1 of the target field F1 on the harvest information page P1. For example, the output processing unit 216 displays an image of the yield map M1 superimposed on an image (map image) of a predetermined area including the field F1 taken from above. The output processing unit 216 may also display field information, display setting information, and the like on the harvest information page P1. On the harvest information page P1, the user can perform operations such as selecting the field to be displayed and setting the display status.

[0066] The output processing unit 216 also outputs the travel locus R1 (see FIG. 11) of the combine harvester 4 created by the creation processing unit 215 to the user terminal 3. For example, as shown in FIG. 13, the output processing unit 216 displays the travel locus R1 of the target field F1 on the travel locus page P2. The output processing unit 216 may also display a switch button on each of the harvest information page P1 and the travel locus page P2, which allows switching between the harvest information page P1 and the travel locus page P2. The output processing unit 216 is an example of an output processing unit of the present invention.

[0067] In another embodiment, the output processing unit 216 may output the data of the harvest yield information D3 (see FIG. 7) and the data of the extraction information D2 (see FIG. 6) to the user terminal 3. That is, the output form of the harvest yield information by the output processing unit 216 is not limited to the harvest yield map M1 (see FIG. 9). Furthermore, the output form of the travel trajectory by the output processing unit 216 is not limited to the travel trajectory R1 (see FIG. 11).

[0068] [User terminal 3] 1, the user terminal 3 includes a control unit 31, a storage unit 32, an operation display unit 33, and a communication unit 34. The user terminal 3 is an information processing device such as a mobile phone, a smartphone, a tablet terminal, or a personal computer.

[0069] The communication unit 34 is a communication interface for connecting the user terminal 3 to the communication network N1 by wire or wirelessly and for executing data communication with external devices such as the management server 2 via the communication network N1 in accordance with a predetermined communication protocol.

[0070] The operation display unit 33 is a user interface that includes a display unit such as a liquid crystal display or an organic EL display that displays information such as various web pages, and an operation unit such as a touch panel, mouse, or keyboard that accepts operations.

[0071] The storage unit 32 is a non-volatile storage unit such as an HDD, SSD, or flash memory that stores various types of information. For example, the storage unit 32 stores a control program such as a browser program. Specifically, the browser program is a control program that causes the control unit 31 to execute communication processing with an external device such as the management server 2 in accordance with a communication protocol such as HTTP (Hypertext Transfer Protocol). The browser program may also be a dedicated application for executing communication processing with the management server 2 in accordance with a predetermined communication protocol.

[0072] The control unit 31 has control devices such as a CPU, a ROM, and a RAM. The CPU is a processor that executes various types of arithmetic processing. The ROM is a non-volatile storage unit that pre-stores control programs such as a BIOS and an OS that cause the CPU to execute various types of processing. The RAM is a volatile or non-volatile storage unit that stores various types of information and is used as a temporary storage memory (work area) for the various types of processing executed by the CPU. The control unit 31 controls the user terminal 3 by having the CPU execute various control programs pre-stored in the ROM or the storage unit 32.

[0073] Specifically, the control unit 31 functions as a browser processing unit 311 by executing various processes in accordance with the browser program stored in the storage unit 32. The browser processing unit 311 is capable of executing browser processing to display a web page provided from the management server 2 via the communication network N1 on the operation display unit 33 and input operations for the operation display unit 33 to the management server 2. In other words, the user terminal 3 can function as an operation terminal for the management server 2 by the control unit 31 executing the browser program. Note that some or all of the processing units included in the control unit 31 may be configured with electronic circuits.

[0074] Specifically, when a user operates user terminal 3 to request access to a predetermined URL corresponding to a website (agricultural support site) of an agricultural support service provided by management server 2, control unit 31 acquires data on the web pages of the agricultural support site (harvest information page P1, travel locus page P2, and field information pages P3 to P5) from management server 2, and displays harvest information page P1 (see FIG. 12), travel locus page P2 (see FIG. 13), and field information pages P3 to P5 (see FIGS. 19 to 21) of the agricultural support site on operation display unit 33. For example, the user issues a display instruction for harvest information page P1, travel locus page P2, and field information pages P3 to P5 on the agricultural support site displayed on user terminal 3.

[0075] For example, a request to access the specified URL is made by selecting from a list of pre-registered websites, by text input, etc. If a dedicated application corresponding to the management server 2 is installed in the user terminal 3, the user of the user terminal 3 can launch the dedicated application to display various pages of the agricultural support site on the operation display unit 33.

[0076] The user can understand the harvest status of the field F1 from the harvest information page P1 displayed on the user terminal 3 while in a location away from the combine 4, and can also understand the running status of the combine 4 within the field F1 from the running track page P2 displayed on the user terminal 3.

[0077] [Agricultural work management processing] An example of the farm work management process executed by the control unit 21 of the management server 2 will be described below with reference to Fig. 14. For example, the farm work management process is started by the control unit 21 when the control unit 21 acquires farm work information D1 including position information, harvest yield information, and operation information from a combine harvester 4. The farm work management process may also be started in response to a predetermined user operation on the management server 2.

[0078] The present invention may be understood as an invention of an agricultural work management method in which the control unit 21 executes part or all of the agricultural work management process, or as an invention of an agricultural work management program for causing the control unit 21 to execute part or all of the agricultural work management method. The agricultural work management process may also be executed by one or more processors. For example, the agricultural work management process may be executed by the control unit 21 of the management server 2 and the control unit 491 of the combine harvester 4 in cooperation with each other.

[0079] In step S1, the control unit 21 determines whether or not it has acquired farm work information D1 from the combine harvester 4, the farm work information including the position information of the combine harvester 4, harvest yield information corresponding to the position of the combine harvester 4, and operation information of the combine harvester 4. If it is determined that the farm work information D1 has been acquired (S1: Yes), the processing proceeds to step S2. The control unit 21 waits until it acquires the farm work information D1 (S1: No). When the control unit 21 (acquisition processing unit 211) acquires the farm work information D1 from the combine harvester 4, it stores the farm work information D1 in the farm work information database DB1 (see FIG. 5).

[0080] In step S2, the control unit 21 (extraction processing unit 212) extracts the time information, the position information, and the operation information at a predetermined sampling interval T2 from the farm work information D1. Specifically, the control unit 21 extracts the time information, the position information, and the operation information at a sampling interval T2 (e.g., 1 minute interval) that is longer than the sampling interval T1 (e.g., 5 seconds interval) at which the control unit 491 of the combine harvester 4 acquires the position information, the harvest yield information, and the operation information from the farm work information D1. Step S2 is an example of an extraction step of the present invention.

[0081] Next, in step S3, the control unit 21 registers the extracted information D2, which includes the extracted time information, the extracted location information, and the extracted operation information, in the extracted information database DB2 in association with each other (see FIG. 6).

[0082] Next, in step S4, the control unit 21 determines whether or not an instruction to display the yield map M1 has been received from the user. If the control unit 21 has received an instruction to display the yield map M1 from the user (S4: Yes), the process proceeds to step S5. On the other hand, if the control unit 21 has not received an instruction to display the yield map M1 from the user (S4: No), the process proceeds to step S41.

[0083] In step S5, the control unit 21 (yield calculation processing unit 214) acquires the yield corresponding to the multiple sampling positions within each plot K based on the farm work information D1 acquired in step S1, and calculates, for example, the yield per unit area (g / m 2 ) is calculated. The control unit 21 registers the calculated harvest yield in harvest yield information D3 (see FIG. 7). In this way, the harvest yield of the entire field F1 is calculated.

[0084] Next, in step S6, the control unit 21 (creation processing unit 215) creates a yield map M1 corresponding to multiple sections K in the field F1 based on the calculated yield. Specifically, the control unit 21 creates the yield map M1 (see FIG. 9) based on the yield information for each section K registered in the yield information D3 (see FIG. 7). This makes it possible to create a yield map M1 for the entire field F1. Furthermore, because the yield map M1 is created based on the position information and the yield information acquired at short sampling intervals T1 (for example, 5-second intervals), it is possible to create a highly reliable yield map M1. Furthermore, by increasing the number of sections K in the field F1, it is possible to create a high-resolution yield map M1.

[0085] Next, in step S7, the control unit 21 (output processing unit 216) outputs the yield map M1 created in step S6 to the user terminal 3. For example, as shown in Fig. 12, the control unit 21 displays the yield map M1 on the harvest information page P1. After step S7, the process proceeds to step S8.

[0086] In step S41, the control unit 21 determines whether or not an instruction to display the traveling locus R1 has been received from the user. If the control unit 21 has received an instruction to display the traveling locus R1 from the user (S41: Yes), the process proceeds to step S42. On the other hand, if the control unit 21 has not received an instruction to display the traveling locus R1 from the user (S41: No), the process proceeds to step S4.

[0087] In step S42, the control unit 21 (creation processing unit 215) creates evaluation information (here, a traveling locus R1) for evaluating the working state of the combine harvester 4 based on the extracted information D2 (see FIG. 6) including the time information, the position information, and the operation information extracted in step S3. That is, the control unit 21 creates the traveling locus R1 of the combine harvester 4 using the position information (see FIG. 6) at a sampling interval T2 (1-minute interval) that is longer than the sampling interval T1. For this reason, as shown in FIG. 11, the traveling locus R1 can be created with a small amount of data. This reduces the load on the control unit 21, allowing the traveling locus R1 to be created quickly.

[0088] In step S43, the control unit 21 (output processing unit 216) outputs the traveling locus R1 created in step S42 to the user terminal 3. For example, as shown in FIG. 13, the control unit 21 displays the traveling locus R1 on the traveling locus page P2. As described above, the amount of data for the traveling locus R1 can be reduced, so that the traveling locus page P2 corresponding to the traveling locus R1 can be quickly displayed on the user terminal 3. After step S43, the process proceeds to step S8.

[0089] In step S8, the control unit 21 determines whether an end instruction has been received from the user. When the user performs an operation to end use of the agricultural support site on the user terminal 3, the control unit 21 receives the end instruction (S8: Yes) and ends the agricultural work management process. If the control unit 21 does not receive the end instruction (S8: No), the process proceeds to step S4 and the above-mentioned process is repeated.

[0090] In this way, the control unit 21 executes the farm work management process. The farm work management process makes it possible to create a high-resolution harvest yield map M1 and a travel locus R1 that does not impose a data processing load.

[0091] As described above, the management server 2 acquires agricultural work information D1, including location information and harvest yield information at sampling intervals T1 (e.g., 5-second intervals), from the combine harvester 4 harvesting crops in the field F1. The management server 2 extracts agricultural work information (extracted information D2) at sampling intervals T2 (1-minute intervals) longer than the sampling interval T1 from the agricultural work information D1, and outputs evaluation information for evaluating the work status of the combine harvester 4 based on the extracted information D2. Specifically, the management server 2 calculates the harvest yield for each section K based on the agricultural work information D1 at the sampling interval T1, creates a harvest yield map M1, and displays the created harvest yield map M1 on the user terminal 3. The management server 2 also creates a travel trajectory R1 of the combine harvester 4 based on the location information at the sampling interval T2 included in the extracted information D2, and displays the travel trajectory R1 on the user terminal 3.

[0092] According to the above configuration, the yield map M1 is created based on the location information and the yield information acquired at a short sampling interval T1 (e.g., every 5 seconds), thereby enabling the creation of a highly reliable yield map M1. Furthermore, by increasing the number of plots K in the field F1, a high-resolution yield map M1 can be created. Meanwhile, the travel trajectory R1 is created based on the location information acquired at a long sampling interval T2 (e.g., every 1 minute), thereby reducing the load on the control unit 21. Furthermore, the travel trajectory R1 can be created quickly, and the travel trajectory page P2 corresponding to the created travel trajectory R1 can be quickly displayed on the user terminal 3. As described above, the management server 2 can acquire agricultural work information D1 containing yield information that allows the creation of a high-resolution yield map M1, while reducing the load on the data processing unit when using the agricultural work information D1—for example, the load on the control unit 21 (CPU) when creating the evaluation information.

[0093] [Other embodiments] Hereinafter, other embodiments of the farm work management system 1 according to this embodiment will be described.

[0094] In the embodiment, the output processing unit 216 outputs the travel trajectory R1 created by the creation processing unit 215 as the evaluation information. The evaluation information of the present invention is not limited to the travel trajectory of the combine harvester 4. For example, the evaluation information includes information indicating changes in the vehicle speed, rotation speed, brake operation, steering operation, battery voltage, etc. of the combine harvester 4. In the following, a change in the vehicle speed of the combine harvester 4 will be taken as an example of the evaluation information.

[0095] Specifically, the creation processing unit 215 creates a vehicle speed history that represents a history of changes in the vehicle speed of the combine harvester 4 corresponding to the harvesting work, based on the vehicle speed information of the combine harvester 4 included in the extraction information D2 (see FIG. 6) extracted by the extraction processing unit 212. The output processing unit 216 outputs the vehicle speed history created by the creation processing unit 215 as the evaluation information.

[0096] Here, when the creation processing unit 215 creates the vehicle speed history of the combine harvester 4 using, for example, the vehicle speed information at sampling interval T1 (see FIG. 5), a detailed (high-resolution) graph of vehicle speed changes is created, as shown in FIG. 15. The graph shown in FIG. 15 allows for a detailed understanding of the changes in the vehicle speed of the combine harvester 4, but the large amount of data increases the load on the control unit 21, which can result in problems such as taking a long time to create the graph or taking a long time to display the vehicle speed history page (not shown) corresponding to the created graph on the user terminal 3.

[0097] In contrast, in this embodiment, the creation processing unit 215 creates the vehicle speed history of the combine harvester 4 using vehicle speed information at a sampling interval T2 (see FIG. 6) that is longer than the sampling interval T1, and therefore, as shown in FIG. 16, a graph of vehicle speed changes can be created with a small amount of data. This reduces the load on the control unit 21, allowing the graph to be created quickly, and also allowing the vehicle speed history page corresponding to the created graph to be quickly displayed on the user terminal 3. Similarly, for the other evaluation information, the creation processing unit 215 creates the evaluation information using extracted information D2 at the sampling interval T2 (see FIG. 6), and therefore, the load on the control unit 21 can be reduced.

[0098] In another embodiment of the present invention, the agricultural work management system 1 may include a combine harvester 4 (an example of a second harvester according to the present invention) that does not have a function for detecting harvest yield. In this case, the acquisition processing unit 211 of the management server 2 can acquire agricultural work information D1 from the combine harvester 4 at a sampling interval T3 (an example of a third sampling interval according to the present invention) that is longer than the sampling interval T1. Note that the sampling interval T3 may be the same as or different from the sampling interval T2. When the acquisition processing unit 211 acquires the agricultural work information D1 at the sampling interval T3 from the combine harvester 4, the output processing unit 216 outputs the evaluation information corresponding to the combine harvester 4 based on the agricultural work information D1. For example, the output processing unit 216 outputs a travel trajectory R1 created based on position information at the sampling interval T3, a graph showing changes in vehicle speed created based on vehicle speed information at the sampling interval T3, and the like.

[0099] In another embodiment of the present invention, the management server 2 may further include, in addition to the configuration of the management server 2 according to the above embodiment, a configuration for outputting information indicating the degree of variation in harvest yield within the field F1 (variability information).

[0100] FIG. 17 is a functional block diagram showing the configuration of a management server 2 according to another embodiment. In FIG. 17, the same components as those of the management server 2 shown in FIG. 1 are denoted by the same reference numerals. Furthermore, among the components shown in FIG. 17, descriptions of components that perform the same processes as those shown in FIG. 1 will be omitted as appropriate. The control unit 21 of the management server 2 shown in FIG. 17 includes an acquisition processing unit 211, an extraction processing unit 212, a storage processing unit 213, a yield calculation processing unit 214, a creation processing unit 215, and an output processing unit 216, as well as a variation coefficient calculation processing unit 217 and a reception processing unit 218. The memory unit 22 of the management server 2 shown in FIG. 17 also stores layout data and image data for generating various web pages, such as a harvest information page P1 (see FIG. 18), a travel track page P2 (see FIG. 13), farm field information pages P3 to P5 (see FIGS. 19 to 21), and a setting page (not shown), which are included in a website (agricultural support site) displayed on the user terminal 3. The farm field information pages P3 to P5 are displayed on the user terminal 3 by logging in to the agricultural support site using the user terminal 3.

[0101] The acquisition processing unit 211 acquires agricultural work information D1 from a combine harvester 4 harvesting crops in the field F1, the agricultural work information D1 including position information of the combine harvester 4, harvest yield information corresponding to the position of the combine harvester 4, and operation information of the combine harvester 4. The acquisition processing unit 211 also acquires agricultural work information D1 including the position information, harvest yield information, and operation information acquired at sampling intervals T1 (here, 5 seconds). The acquisition processing unit 211 is an example of an acquisition processing unit of the present invention. The acquisition processing unit 211 stores the agricultural work information D1 acquired from the combine harvester 4 in an agricultural work information database DB1 (see FIG. 5).

[0102] The yield calculation processing unit 214 calculates the yield of each of the multiple blocks K in the field F1 based on the farm work information D1 (see FIG. 5) acquired by the acquisition processing unit 211. Specifically, the yield calculation processing unit 214 calculates the yield for each block K based on the position information and the yield information acquired at sampling intervals T1 (e.g., every 5 seconds). The yield calculation processing unit 214 registers information about the calculated yield in harvest yield information D3 (see FIG. 7). The yield calculation processing unit 214 is an example of a yield calculation processing unit of the present invention.

[0103] The variation coefficient calculation processor 217 calculates a variation coefficient Sf (an example of the present invention's "variability") of the yield within the field F1 based on the yields of each of the multiple sections K calculated by the yield calculation processor 214. The variation coefficient Sf is an index that indicates the degree of variation in the yield throughout the field F1. The variation coefficient calculation processor 217 is an example of a variation calculation processor of the present invention. Specifically, the variation coefficient calculation processor 217 calculates the ratio of the standard deviation of the yields of all sections K to the average value of the yields of each of the multiple sections K as the variation coefficient Sf. For example, the variation coefficient calculation processor 217 calculates the average yield Ea of the section K based on the yield information D3 shown in FIG. 7. The variation coefficient calculation processor 217 also calculates the standard deviation Es using the following formula (1) based on the yield Ex and average yield Ea of each section K registered in the yield information D3. In formula (1), "n" represents the number of sections K.

number

[0104] The variation coefficient calculation processor 217 then calculates the variation coefficient Sf of the field F1 using the following formula (2): A larger value of the variation coefficient Sf indicates greater variation in the yield, and a smaller value of the variation coefficient Sf indicates less variation in the yield. One variation coefficient Sf may be calculated for one field F1, or a variation coefficient Sf may be calculated for each of multiple regions included in one field F1. Sf=Es / Ea (2)

[0105] The output processing unit 216 outputs variation degree information regarding the coefficient of variation Sf calculated by the coefficient of variation calculation processing unit 217. For example, as shown in Fig. 18, the output processing unit 216 displays the coefficient of variation Sf corresponding to the target field F1 with the field name "3" on the yield map M1. The output processing unit 216 is an example of the output processing unit of the present invention.

[0106] The variation degree information is not limited to numerical information on the coefficient of variation Sf, but may also be image information corresponding to the coefficient of variation Sf. Specifically, the creation processing unit 215 may create a variation coefficient map M2 that represents the coefficient of variation Sf in the field F1. For example, the variation coefficient calculation processing unit 217 classifies the field F1 into ranks according to the coefficient of variation Sf (for example, the lowest rank "1" to the highest rank "5"). The creation processing unit 215 creates the variation coefficient map M2 that displays the field F1 in a display format corresponding to the rank.

[0107] The output processing unit 216 displays the target field F1 in a display mode corresponding to the rank classified according to the coefficient of variation Sf. For example, as shown in Fig. 19, on the field information page P3 (coefficient of variation map M2), the output processing unit 216 displays the target field F1 with the field name "3" in a display mode corresponding to the rank classified based on the coefficient of variation Sf (for example, a color corresponding to the rank). On the field information page P3, the user can select the season, period, etc.

[0108] Here, the management server 2 can also manage farm work information for multiple fields F1. Specifically, the acquisition processing unit 211 acquires farm work information D1 corresponding to each of the multiple fields F1 from the combine harvesters 4 that perform harvesting work in each field F1. The acquisition processing unit 211 also stores the farm work information D1 acquired from each combine harvester 4 for each field F1. The farm work information D1 is generated for each field F1.

[0109] The yield calculation processing unit 214 calculates the yield of each of the multiple blocks K for each field F1 based on the farm work information D1 (see FIG. 5) corresponding to that field F1. The yield calculation processing unit 214 registers the calculated yield information in yield information D3 (see FIG. 7) for each field F1. The yield information D3 is generated for each field F1.

[0110] The variation coefficient calculation processing unit 217 calculates the variation coefficient Sf for each field F1. The variation coefficient calculation processing unit 217 stores the calculated variation coefficient Sf for each field F1 in the storage unit 22. The variation coefficient calculation processing unit 217 also classifies each of the multiple fields F1 into ranks according to the variation coefficient Sf corresponding to each field F1.

[0111] The output processing unit 216 outputs the variability information for each field F1. Specifically, the reception processing unit 218 receives a user operation to select a field F1 from among the multiple fields F1. The reception processing unit 218 is an example of the reception processing unit of the present invention. The output processing unit 216 presents the variability information corresponding to the field F1 selected by the user operation to the user. For example, when a user selects the field name of another field F1 in the field name section of the yield map M1 shown in FIG. 18, the reception processing unit 218 receives the user operation, and the output processing unit 216 displays the yield map M1 corresponding to the field F1 selected by the user operation on the harvest information page P1, as well as the coefficient of variation Sf corresponding to the field F1 on the harvest information page P1. Furthermore, the output processing unit 216 displays each of the multiple fields F1 in a display mode corresponding to the classification rank, as shown in FIG. 19.

[0112] The user can also select any field F1 on the field information page P3. Specifically, when the user selects any field F1, the output processing unit 216 displays the yield map M1 (see FIG. 18) corresponding to the selected field F1.

[0113] Furthermore, on the field information page P3, the user can switch the display item from "coefficient of variation (variation)" to "yield." When the user selects "yield" as a display item on the field information page P3, the output processing unit 216 displays the field information page P4 (field map M3) in a display mode (e.g., a color corresponding to the rank) classified based on the yield (average yield Ea of the field F1), as shown in FIG. 20. The field map M3 shown in FIG. 20 allows the harvest conditions of multiple fields F1 to be compared. When the user selects any field F1 on the field information page P4 shown in FIG. 20, the output processing unit 216 may display the yield map M1 (see FIG. 18) corresponding to the selected field F1.

[0114] The output processing unit 216 may also display a map (variation coefficient map M2) showing the distribution of the coefficient of variation Sf corresponding to the field F1 and a map (field map M3) showing the distribution of the yield corresponding to the field F1 on the same screen of the user terminal 3. For example, as shown in FIG. 21 , the output processing unit 216 displays the variation coefficient map M2 corresponding to each of the multiple fields F1 and the field map M3 corresponding to each of the multiple fields F1 on the same screen of the user terminal 3 on the field information page P5. This allows the user to compare the distribution of the yield and the degree of variation in the field F1. Furthermore, the user can compare the distribution of the yield and the degree of variation for multiple fields F1 on the same screen.

[0115] The farm work management system 1 equipped with the management server 2 shown in FIG. 17 can quantify and display the degree of variation in harvest yield within the field F1 using the coefficient of variation Sf, allowing the user to objectively evaluate the harvest yield. Furthermore, a coefficient of variation map M2 corresponding to the degree of variation in harvest yield within the field F1 can be displayed, allowing the user to evaluate the harvest condition at a glance. Furthermore, the degree of variation for multiple fields F1 can be displayed in a comparable manner, allowing the user to simultaneously evaluate the harvest condition of each of the multiple fields. This improves the reliability of the evaluation of the harvest yield of the field F1.

[0116] 17, similar to the management server 2 shown in FIG. 1, the extraction processing unit 212 may extract the time information, the location information, and the operation information at a sampling interval T2 longer than the sampling interval T1 from the farm work information D1 (the location information, the harvest yield information, and the operation information) acquired by the acquisition processing unit 211, the creation processing unit 215 may create the evaluation information (travel trajectory, vehicle speed change, etc.) corresponding to the combine harvester 4 based on the extracted time information, the location information, and the operation information (see FIG. 6), and the output processing unit 216 may output the evaluation information. Furthermore, the management server 2 shown in FIG. 17 may not be equipped with a configuration for creating and outputting the evaluation information. In this case, the extraction processing unit 212 and the storage processing unit 213 may be omitted from the management server 2 shown in FIG. 17.

[0117] [Notes on the Invention] <Appendix 1> an acquisition processing unit that acquires first farm work information from a first harvester that harvests crops in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval that corresponds to the position of the first harvester; an extraction processing unit that extracts second farm work information at a second sampling interval that is longer than the first sampling interval from the first farm work information acquired by the acquisition processing unit; an output processing unit that outputs evaluation information for evaluating the work status of the first harvester based on the second farm work information extracted by the extraction processing unit; A farm work management system equipped with:

[0118] <Appendix 2> a creation processing unit that creates a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the second farm work information extracted by the extraction processing unit, The output processing unit outputs the traveling locus created by the creation processing unit as the evaluation information. 1. A farm work management system as described in Appendix 1.

[0119] <Appendix 3> a creation processing unit that creates a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the first farm work information acquired by the acquisition processing unit and the location information included in the second farm work information extracted by the extraction processing unit, The output processing unit outputs the traveling locus created by the creation processing unit as the evaluation information. 1. A farm work management system as described in Appendix 1.

[0120] <Appendix 4> a creation processing unit that creates a vehicle speed history that represents a history of changes in the vehicle speed of the first harvester corresponding to the harvesting work, based on the vehicle speed information of the first harvester included in the second farm work information extracted by the extraction processing unit, The output processing unit outputs the vehicle speed history created by the creation processing unit as the evaluation information. 4. The farm work management system according to any one of appendices 1 to 3.

[0121] <Appendix 5> a harvest yield calculation processing unit that calculates the harvest yield of each of a plurality of plots that are set by dividing the farm field based on the first farm work information acquired by the acquisition processing unit; a generation processing unit that generates a yield map corresponding to the plurality of plots based on the yield calculated by the yield calculation processing unit; Furthermore, The output processing unit outputs the harvest yield map created by the creation processing unit. 5. The farm work management system according to any one of appendices 1 to 4.

[0122] <Appendix 6> the acquisition processing unit stores the first farm work information acquired from the first harvester in a first storage unit; further comprising a storage processing unit that stores the second farm work information extracted by the extraction processing unit in a second storage unit; 6. The farm work management system according to any one of appendices 1 to 5.

[0123] <Appendix 7> the first farm work information includes time information, the location information, the harvest yield information, and operation information of the first harvester; The second farm work information includes the time information, the location information, and operation information of the first harvester. 7. The farm work management system according to any one of appendices 1 to 6.

[0124] <Appendix 8> the acquisition processing unit is capable of acquiring farm work information at a third sampling interval longer than the first sampling interval from a second harvester that does not have a function for detecting a harvest yield, When the acquisition processing unit acquires farm work information at the third sampling interval from the second harvester, the output processing unit outputs the evaluation information corresponding to the second harvester based on the farm work information. 8. The farm work management system according to any one of appendices 1 to 7.

[0125] <Appendix 9> acquiring first farm work information from a first harvester that harvests crops in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the position of the first harvester; extracting second farm work information at a second sampling interval longer than the first sampling interval from the first farm work information; outputting evaluation information for evaluating the work status of the first harvester based on the second farm work information; A farming management method in which one or more processors execute the above.

[0126] <Appendix 10> acquiring first farm work information from a first harvester that harvests crops in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the position of the first harvester; extracting second farm work information at a second sampling interval longer than the first sampling interval from the first farm work information; outputting evaluation information for evaluating the work status of the first harvester based on the second farm work information; A farming management program for causing one or more processors to execute the above. [Explanation of symbols]

[0127] 1: Farm work management system 2: Management Server 3: User device 4: Combine 211: Acquisition processing unit 212: Extraction processing unit 213: Memory processing unit 214: Harvest yield calculation processing unit 215: Creation processing unit 216: Output processing section 217: Variation coefficient calculation processing unit 218: Reception processing unit 311: Browser processing section 494: Position detection unit 495: Harvest yield detection unit DB1: Agricultural work information database DB2: Extraction Information Database

Claims

1. an acquisition processing unit that acquires first agricultural work information from a first harvester that harvests crops in a farm field, the first agricultural work information including position information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval that corresponds to the position of the first harvester; an extraction processing unit that extracts second farm work information at a second sampling interval that is longer than the first sampling interval from the first farm work information acquired by the acquisition processing unit; a creation processing unit that creates a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the second farm work information extracted by the extraction processing unit; an output processing unit that outputs the traveling locus created by the creation processing unit; A farm work management system equipped with:

2. the creation processing unit creates a travel trajectory of the first harvester corresponding to the harvesting work based on the location information included in the first farm work information acquired by the acquisition processing unit and the location information included in the second farm work information extracted by the extraction processing unit. The agricultural work management system according to claim 1 .

3. the creation processing unit creates a straight travel locus of the straight travel of the first harvester corresponding to the harvesting work based on the position information included in the second farm work information, and creates a turning travel locus of the turning travel of the first harvester corresponding to the harvesting work based on the position information included in the first farm work information. The agricultural work management system according to claim 2 .

4. The creation processing unit further creates a vehicle speed history that represents a history of changes in the vehicle speed of the first harvester corresponding to the harvesting work, based on vehicle speed information of the first harvester included in the second farming work information extracted by the extraction processing unit, and The output processing unit further outputs the vehicle speed history created by the creation processing unit. The agricultural work management system according to any one of claims 1 to 3.

5. a harvest calculation processing unit that calculates a harvest yield for each of a plurality of plots that are set by dividing the field based on the first farm work information acquired by the acquisition processing unit, The creation processing unit further creates a yield map corresponding to the plurality of plots based on the yield calculated by the yield calculation processing unit, The output processing unit further outputs the yield map created by the creation processing unit. The agricultural work management system according to any one of claims 1 to 4.

6. the acquisition processing unit stores the first farm work information acquired from the first harvester in a first storage unit; a storage processing unit that stores the second farm work information extracted by the extraction processing unit in a second storage unit, The agricultural work management system according to any one of claims 1 to 5.

7. the first farm work information includes time information, the location information, the harvest yield information, and operation information of the first harvester; The second farm work information includes the time information, the location information, and operation information of the first harvester. The agricultural work management system according to any one of claims 1 to 6.

8. the acquisition processing unit is capable of acquiring farm work information at a third sampling interval longer than the first sampling interval from a second harvester that does not have a function for detecting a harvest yield, When the acquisition processing unit acquires the farm work information at the third sampling interval from the second harvester, the creation processing unit creates a travel trajectory of the second harvester corresponding to the harvesting work based on the position information included in the farm work information. The agricultural work management system according to any one of claims 1 to 7.

9. acquiring first agricultural work information from a first harvester that harvests crops in a farm field, the first agricultural work information including position information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the position of the first harvester; extracting second farm work information at a second sampling interval longer than the first sampling interval from the first farm work information; creating a travel trajectory of the first harvester corresponding to the harvesting work based on the position information included in the second farm work information; outputting the travel trajectory; A farming management method in which one or more processors execute the above.

10. acquiring first agricultural work information from a first harvester that harvests crops in a farm field, the first agricultural work information including position information of the first harvester at a first sampling interval and harvest yield information at the first sampling interval corresponding to the position of the first harvester; extracting second farm work information at a second sampling interval longer than the first sampling interval from the first farm work information; creating a travel trajectory of the first harvester corresponding to the harvesting work based on the position information included in the second farm work information; outputting the travel trajectory; A farming management program for causing one or more processors to execute the above.

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