Farm work management system, farm work management method, and farm 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 an agricultural work management system, an agricultural work management method, and an agricultural work management program that manage agricultural work information obtained from a harvester that performs harvesting work in a farm field. [Background technology]

[0002] Some harvesters, such as combine harvesters, that perform harvesting work in a field are equipped with a yield detection unit (yield sensor) that detects the yield of the harvested crop 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 a field while measuring its position to perform harvesting work, and positioning data (position information) and harvest yield data (harvest yield information) acquired at predetermined times are associated with each other and recorded in a recording unit, and after the work is completed, a travel trajectory of the combine is created based on this information, and the field is divided into a mesh shape, and the harvest yield of each of the multiple plots is calculated, and a harvest yield map is created that shows the distribution of the harvest yield for each plot. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-109791 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional technology, if the sampling interval for acquiring the position information and the yield information is set short, the yield information can be acquired frequently, so the number of samples in each section increases, and a high-resolution yield map can be created. However, since a large amount of position information for creating the travel trajectory is also acquired, when the travel trajectory of the combine is created based on this position information, a problem occurs in that the load on the data processing unit (control unit) increases. This problem is not limited to when creating the travel trajectory, but can also occur when creating various evaluation information for evaluating the working state of the combine. For example, even when creating a graph showing the change in the vehicle speed of the combine during harvesting work, the graph is created based on the position information and vehicle speed information acquired in large amounts, so a problem occurs in that the load on the data processing unit increases. Thus, in the conventional technology, when farm work information including harvest information capable of creating 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.

[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 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 includes 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 a crop in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest volume information at the first sampling interval corresponding to the position 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 harvest work, based on the position 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 to acquire first agricultural work information from a first harvester performing crop harvesting work in a field, the first agricultural work information including position information of a first sampling interval of the first harvester and harvest yield information of the first sampling interval corresponding to the position of the first harvester, extract second agricultural work information of 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 position information included in the second agricultural work information, and output 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 position information of the first sampling interval of the first harvester and harvest yield information of the first sampling interval corresponding to the position of the first harvester; extract second agricultural work information of 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 position information included in the second agricultural work information; and output the travel trajectory. Effect 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 a data processing unit when using the agricultural work information. [Brief description 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. [Diagram 2] FIG. 2 is a side view showing an example of a combine harvester according to an embodiment of the present invention. [Diagram 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. [Diagram 5] FIG. 5 is a diagram showing an example of farm work information acquired from a combine harvester by the management server according to the embodiment of the present invention. [Figure 6] FIG. 6 is a diagram showing an example of extraction 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 volume information stored in the management server according to the embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing a schematic diagram of 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 the 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 a change 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 a change 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 PREFERRED EMBODIMENTS

[0011] The following embodiment is an example of the present invention, and is not intended to 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 are capable of communicating with each other via a communication network N1. For example, the management server 2 and the combine harvester 4 are capable of communicating with each other via a mobile phone line network, a packet line network, or a wireless LAN. In addition, the management server 2 and the user terminal 3 are capable of communicating 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 includes 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) of an agricultural support service provided by the management server 2 on the user terminal 3 and display a web page (described later) that includes information such as the operating status and harvest yield of the combine harvester 4.

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

[0016] The vehicle control device 48 is a computer system including one or more processors and storage memories such as a non-volatile memory and a RAM. The vehicle control device 48 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 / rearward 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 route of the combine harvester 4 is not limited to the route shown in Fig. 4.

[0018] The reaping device 42 reaps the culms 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 culms in the field F1 to the cutter 422 by rotating. The cutter 422 cuts the culms guided by the reel 421. The auger 423 is a lateral feed screw that collects the culms cut by the cutter 422 at 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 harvested by the harvesting device 42. The threshing process separates the husks containing grains from the stalks. The husks 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 sifting the threshed grains while blowing air obliquely from below.

[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 harvester 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 includes an engine (not shown), such as a diesel engine, as a power source. The power unit 46 may also include an electric motor as the power source. The power unit 46 may also include a hybrid drive source including the engine and the electric motor.

[0025] The driving section 47 is provided with a driver's seat on which a user sits, and operation devices such as a steering wheel, various operation levers, and various operation switches operated by the user. For example, the operation 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. A 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 disposed at different positions in the combine harvester 4. The combine harvester 4 of this embodiment is a combine harvester equipped with a function of 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 a non-volatile memory and a RAM. The storage unit 492 is a non-volatile memory that stores a control program for causing the control unit 491 to execute a predetermined process, and data such as position information and harvest amount information described below.

[0028] The communication unit 493 can transmit and receive various data to and from the vehicle control device 48 through short-distance wireless communication or wired communication. Specifically, the control unit 491 can obtain operation information indicating various operating states of the combine 4 from the vehicle control device 48 through the communication unit 493.

[0029] The operation information includes handle operation information indicating the operation angle of the handle, and shift information indicating the operation state of the shift lever. The operation information also includes engine information indicating the ON / OFF state of an 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] Furthermore, the communication unit 493 is 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 volume information, operation information, and the like received from the combine harvester 4 via the communication network N1. Furthermore, the control unit 21 is capable of displaying or transmitting the location information, harvest volume information, operation information, and the like 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 equipped with the information recording device 49 by 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 other types of information capable of identifying 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 of obtaining the harvest yield of the combine harvester 4 by the harvest yield detection unit 495 is not particularly limited.

[0033] The control unit 491 executes the following various processes. Specifically, the control unit 491 executes a timekeeping process for measuring 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] Furthermore, the control unit 491 executes an information acquisition process for acquiring the position information, the harvest volume 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 volume information from the harvest volume 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, position information at a preset sampling interval T1 (first sampling interval of the present invention) among the acquired position information. The control unit 491 also records, in the storage unit 492, the harvest yield information at the preset sampling interval T1 among the acquired harvest yield information. The control unit 491 also records, in the storage unit 492, the operation information at the preset sampling interval T1 among the acquired operation information. The sampling interval T1 is set based on at least the harvest yield acquisition interval (e.g., 1-5 second interval) required for creating a harvest yield map, and is set to an interval shorter than the acquisition interval (e.g., 1 minute interval) of position information required for creating 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 the farm work information D1 including the position information, the harvest amount information, the operation information, and the time information recorded in the storage unit 492. In FIG. 5, the position information is indicated by X1 to X17 and Y1 to Y17, but the actual position information includes, instead of X1 to X17 and Y1 to Y17, numerical values ​​(latitude and longitude) indicating the position of the combine harvester 4. In FIG. 5, the harvest amount information is indicated by E1 to E17, but the actual harvest amount information includes, instead of E1 to E17, numerical values ​​(weight) indicating the detection value detected by the harvest amount detection unit 495. In FIG. 5, the vehicle speed information (an example of operation information) is indicated by V1 to V17, but the actual vehicle speed information includes, instead of V1 to V17, numerical values ​​(speed) indicating the detection value 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 harvester 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 position 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. Upon receiving a reception confirmation signal for the farm work information D1 from the management server 2, the control unit 491 erases 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, acquires the position information, harvest yield information, and operation information corresponding to the harvesting work, records them in the memory unit 492, and transmits each piece of information stored in the memory unit 492 (farm work information D1) to the management server 2 when the engine is switched off. Note that there is no particular limitation on the timing of transmitting the farm work information D1 to the management server 2.

[0039] Here, in the conventional technology, if the sampling interval for acquiring the position information and the harvest information is set short, the harvest information can be acquired frequently, so the number of samples in each section increases, and a high-resolution harvest map can be created. However, since a large amount of position information for creating the travel trajectory is also acquired, when the travel trajectory of the combine is created based on this position information, a problem occurs in that the load on the data processing unit (control unit) increases (see FIG. 10). This problem is not limited to when creating the travel trajectory, but can also occur when creating various evaluation information for evaluating the work state (work history) of the combine. For example, even when creating a graph showing the change in the vehicle speed of the combine during harvesting work, the graph is created based on a large amount of position information and vehicle speed information, so a problem occurs in that the load on the data processing unit increases (see FIG. 15). Thus, in the conventional technology, when farm work information including harvest information capable of creating a high-resolution harvest map is acquired, a problem occurs in that the load on the data processing unit increases when the farm work information is used. As described above, in the conventional technology, when farm work information including harvest information capable of creating a high-resolution harvest 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 the present embodiment makes it possible to acquire farm work information including harvest information capable of creating a high-resolution harvest 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 will be 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, and may be a computer system in which multiple computers work in cooperation. 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 wired or wireless connection, and performs data communication in accordance with a specified communication protocol between 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 for causing the control unit 21 to execute a farm work management process (see FIG. 14) described below. 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 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 position information, and the operation information at a predetermined sampling interval T2 (the second sampling interval of the present invention) from the farm work information D1, and stores the extracted information D2 including these pieces of information 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 to an acquisition interval of the position information and operation information required for creating evaluation information for evaluating the working state of the combine harvester 4, for example. For example, the sampling interval T2 is set to an acquisition interval (for example, one minute interval) of the position information required for creating the running trajectory of the combine harvester 4. As shown in FIG. 6, the extracted information D2 registers the time information, the position information, and the vehicle speed information (an example of operation information) at one minute intervals among the information included in the farm work information D1 (see FIG. 5). It should be noted that the extracted information D2 does not have to 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 extraction 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) related to the harvest yield for each section K obtained by dividing the field F1. 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 map M1 (also called a yield map) showing the distribution of harvest yields in the field F1 is used for the purpose of evaluating the harvest condition of the field F1 and planning the harvest work for the next year. By checking the harvest map M1, the user can grasp the harvest condition 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. FIG. 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 FIG. 8, coordinate information in the X and Y directions (section number) is provided 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 "plot number" and "harvest yield information" corresponding to each plot of field F1. The plot number is identification information for plot K (see FIG. 8). The harvest yield information is calculated by control unit 21 based on the position information and harvest yield information acquired from combine harvester 4. The harvest yield information is registered for each plot K. For each plot K, 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. Each piece of harvest yield information registered in the harvest yield information D3 may be a 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 memory 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, 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 setting page (not shown), included in a website (agricultural support site) displayed on the user terminal 3. In this embodiment, the control unit 21 of the management server 2 can generate the various web pages and transmit information of 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 transmitting data required for displaying the various web pages to the user terminal 3.

[0054] The harvest information page P1, the travel track 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 with electronic circuits. The agricultural work management program may 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) including the position information of the combine harvester 4, harvest amount information corresponding to the position of the combine harvester 4, and operation information of the combine harvester 4 from the combine harvester 4 performing the harvesting operation of the crop in the field F1. Specifically, the acquisition processing unit 211 acquires agricultural work information D1 including the position information, the harvest amount information, and the operation information acquired at a sampling interval T1 (here, 5-second intervals). 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 start to the stop of the engine of the combine harvester 4 is transmitted to the management server 2 at the timing when the engine of the combine harvester 4 is switched off. As a result, 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 the agricultural work information database DB1 (see FIG. 5).

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

[0059] The harvest yield calculation processing unit 214 calculates the harvest yield of each of the multiple sections K in the field F1 based on the farm work information D1 (see FIG. 5) acquired by the acquisition processing unit 211. The harvest yield calculation processing unit 214 acquires harvest yield information corresponding to multiple sampling positions within the section K for each section 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 (e.g., 5 second intervals). 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 corresponding to a plurality of 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 of 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 a color, such as black to white, with the value of the yield based on the yield information registered in the yield information D3. In the example shown in FIG. 9, for each section K, the lighter the color, the smaller the yield, and the darker the color, the larger the yield. This makes it possible to create a yield map M1 of the entire field F1. In addition, since the yield map M1 is created based on the position information and the yield information acquired at a short sampling interval T1 (for example, 5 seconds), it is possible to create a highly reliable yield map M1. Also, 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 in each section K of the yield map M1.

[0061] The creation processing unit 215 also creates evaluation information for evaluating the work state (work history) of the combine harvester 4, based on extraction information D2 (see FIG. 6) including the time information, the position information, and the operation information extracted by the extraction processing unit 212. The evaluation information includes information indicating changes in the work state (achievements), such as the travel path, vehicle speed, RPM, brake operation, handle 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 trajectory 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 while turning right from the outside to the inside in the field F1. The control unit 491 of the combine harvester 4 acquires position information of the position where the combine harvester 4 traveled during harvesting work at sampling intervals T1 and records it in the storage unit 492. Here, when the creation processing unit 215 creates the travel trajectory of the combine harvester 4 using, for example, the position information at the sampling intervals T1 (see FIG. 5), a detailed (high-definition) travel trajectory R1 is created as shown in FIG. 10. According to the travel trajectory R1 shown in FIG. 10, the detailed trajectory where the combine harvester 4 traveled can be grasped, but since the amount of data is large, the load on the control unit 21 is large, and there is a possibility of a problem that it takes time to create the travel trajectory R1 or it takes time to display the travel trajectory page P2 corresponding to the created travel trajectory 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 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, so that the traveling locus R1 can be created quickly, and the traveling locus page P2 (see FIG. 13) corresponding to the created traveling locus R1 can be displayed quickly on the user terminal 3. In addition, in FIG. 10 and FIG. 11, the black dots are schematic representations of the 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 trajectory R1 of the combine harvester 4 using both the position information of the sampling interval T2 (see FIG. 6) and the position information of the sampling interval T1 (see FIG. 5). For example, the creation processing unit 215 acquires the position information of the sampling interval T2 from the extraction information D2 (see FIG. 6) when the travel state of the combine harvester 4 is going straight, and acquires the position information of the sampling interval T1 from the farm work information D1 (see FIG. 5) when the travel state of the combine harvester 4 is turning, and creates the travel trajectory R1 of the combine harvester 4 using both position information. As a result, the accuracy of the travel trajectory is low for the straight travel portion of the travel trajectory of the combine harvester 4, but the accuracy of the travel trajectory can be increased for the turning portion. The creation processing unit 215 is an example of the 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 the sky. The output processing unit 216 may display field information, display setting information, and the like on the harvest information page P1. The user can perform an operation of selecting a field to be displayed, an operation of setting a display state, and the like on the harvest information page P1.

[0066] Furthermore, the output processing unit 216 outputs the travel trajectory 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 trajectory R1 of the target field F1 on the travel trajectory page P2. The output processing unit 216 may display a switch button on each of the harvest information page P1 and the travel trajectory page P2, which allows switching between the harvest information page P1 and the travel trajectory 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 data of the harvest yield information D3 (see FIG. 7) and data of the extraction information D2 (see FIG. 6) to the user terminal 3. That is, the output mode of the harvest yield information by the output processing unit 216 is not limited to the harvest yield map M1 (see FIG. 9). Moreover, the output mode 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 an external device 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, a mouse, or a 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 information. For example, a control program such as a browser program is stored in the storage unit 32. 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 according to 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 according to 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 arithmetic processing. The ROM is a non-volatile storage unit in which control programs such as a BIOS and an OS for causing the CPU to execute various processes are stored in advance. The RAM is a volatile or non-volatile storage unit that stores various information, and is used as a temporary storage memory (work area) for various processes executed by the CPU. The control unit 31 controls the user terminal 3 by executing, by the CPU, various control programs stored in advance 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 cause the operation display unit 33 to display a web page provided from the management server 2 via the communication network N1, and to 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, in the user terminal 3, when a user operation is performed to make an access request to a predetermined URL corresponding to a website (agricultural support site) of an agricultural support service provided by the management server 2, the control unit 31 acquires data of the web pages (harvest information page P1, travel locus page P2, and field information pages P3 to P5) of the agricultural support site from the management server 2, and displays the harvest information page P1 (see FIG. 12), the travel locus page P2 (see FIG. 13), and the field information pages P3 to P5 (see FIG. 19 to FIG. 21) of the agricultural support site on the operation display unit 33. For example, the user issues an instruction to display the harvest information page P1, the travel locus page P2, and the field information pages P3 to P5 on the agricultural support site displayed on the user terminal 3.

[0075] For example, the access request to the predetermined URL is made by a selection operation from a list of preregistered websites, a text input operation, etc. Furthermore, 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] A user can grasp the harvest condition of the field F1 from the harvest information page P1 displayed on the user terminal 3 while at a location away from the combine harvester 4, and can grasp the running condition of the combine harvester 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 volume 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 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 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 process 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 second interval) at which the control unit 491 of the combine 4 acquires the position information, the harvest volume 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, including the extracted time information, the location information, and the operation information, in the extracted information database DB2 in such a manner that these pieces of information are associated 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 section 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 farm 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 of 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. In addition, since the yield map M1 is created based on the position information and the yield information acquired at a short sampling interval T1 (e.g., 5-second intervals), it is possible to create a highly reliable yield map M1. In addition, 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 causes the yield map M1 to be displayed 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 travel trajectory R1 has been received from the user. If the control unit 21 has received an instruction to display the travel trajectory 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 travel trajectory 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 trajectory R1) for evaluating the work state of the combine harvester 4 based on the extraction 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 trajectory R1 of the combine harvester 4 using the position information (see FIG. 6) with a sampling interval T2 (1-minute interval) longer than the sampling interval T1. For this reason, as shown in FIG. 11, the traveling trajectory R1 can be created with a small amount of data. This reduces the load on the control unit 21, and therefore the traveling trajectory R1 can 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 causes the traveling locus R1 to be displayed on the traveling locus page P2. As described above, since the amount of data of the traveling locus R1 can be reduced, 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 or not 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 manner, 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 farm work information D1 including position 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, extracts farm work information (extracted information D2) at sampling intervals T2 (1-minute intervals) longer than the sampling interval T1 from the farm 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 farm 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 position information at the sampling interval T2 included in the extracted information D2, and displays it on the user terminal 3.

[0092] According to the above configuration, the yield map M1 is created based on the position information and the yield information acquired at a short sampling interval T1 (for example, 5-second intervals), so that a highly reliable yield map M1 can be created. In addition, a high-resolution yield map M1 can be created by increasing the number of sections K in the field F1. Meanwhile, the travel trajectory R1 is created based on the position information acquired at a long sampling interval T2 (for example, 1-minute intervals), so that the load on the control unit 21 can be reduced. In addition, 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, according to the management server 2, it is possible to acquire the farm work information D1 including the yield information capable of creating a high-resolution yield map M1, while reducing the load on the data processing unit when using the farm work information D1, for example, the load on the control unit 21 (CPU) when creating the evaluation information.

[0093] [Other embodiments] Below, 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 showing changes in the vehicle speed, rotation speed, brake operation, handle operation, battery voltage, and the like 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 indicates 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-definition) graph of the vehicle speed change is created as shown in FIG. 15. According to the graph shown in FIG. 15, it is possible to grasp the detailed state of the vehicle speed change of the combine harvester 4, but since the amount of data is large, the load on the control unit 21 becomes large, and there is a possibility that problems will occur such as it taking a long time to create the graph or it 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, so that a graph of vehicle speed change can be created with a small amount of data, as shown in FIG. 16. This reduces the load on the control unit 21, so that the graph can be created quickly, and the vehicle speed history page corresponding to the created graph can 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), so that the load on the control unit 21 can be reduced.

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

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

[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. In addition, among the components shown in FIG. 17, the description of the components that execute 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, an output processing unit 216, and further includes a variation coefficient calculation processing unit 217 and a reception processing unit 218. In addition, the storage 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 (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 agriculture support site using the user terminal 3.

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

[0102] The harvest yield calculation processing unit 214 calculates the harvest yield of each of the multiple sections K in the field F1 based on the farm work information D1 (see FIG. 5) acquired by the acquisition processing unit 211. Specifically, 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 (e.g., 5 second intervals). The harvest yield calculation processing unit 214 registers information on the calculated harvest yield in harvest yield information D3 (see FIG. 7). The harvest yield calculation processing unit 214 is an example of a harvest yield calculation processing unit of the present invention.

[0103] The variation coefficient calculation processing unit 217 calculates a variation coefficient Sf (an example of the degree of variation of the present invention) of the yield in the field F1 based on the yields of each of the multiple sections K calculated by the yield calculation processing unit 214. The variation coefficient Sf is an index indicating the degree of variation of the yield in the entire field F1. The variation coefficient calculation processing unit 217 is an example of the variation calculation processing unit of the present invention. Specifically, the variation coefficient calculation processing unit 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 processing unit 217 calculates the average yield Ea of the section K based on the yield information D3 shown in FIG. 7. In addition, the variation coefficient calculation processing unit 217 calculates the standard deviation Es by the following formula (1) based on the yield Ex and the 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] Then, the variation coefficient calculation processor 217 calculates the variation coefficient Sf of the field F1 by the following formula (2). A larger value of the variation coefficient Sf indicates a larger variation in the yield, and a smaller value of the variation coefficient Sf indicates a smaller 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 areas included in one field F1. Sf = Es / Ea (2)

[0105] The output processing unit 216 outputs variation degree information regarding the variation coefficient Sf calculated by the variation coefficient calculation processing unit 217. For example, as shown in Fig. 18, the output processing unit 216 displays the variation coefficient 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, and may be image information according 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 minimum rank "1" to the maximum rank "5"). The creation processing unit 215 creates the variation coefficient map M2 that displays the field F1 in a display mode according 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 variation coefficient Sf. For example, as shown in Fig. 19, the output processing unit 216 displays the target field F1 with the field name "3" on the field information page P3 (variation coefficient map M2) in a display mode corresponding to the rank classified based on the variation coefficient Sf (for example, a color corresponding to the rank). Note that on the field information page P3, the user can select the season, period, etc.

[0108] Here, the management server 2 is also capable of managing 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 harvest yield calculation processing unit 214 calculates the harvest 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 harvest yield calculation processing unit 214 registers information on the calculated harvest yield in harvest yield information D3 (see FIG. 7) for each field F1. The harvest 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. In addition, the variation coefficient calculation processing unit 217 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 variation degree information for each field F1. Specifically, the reception processing unit 218 receives a user operation to select an arbitrary 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 variation degree information corresponding to the field F1 selected by the user operation to the user. For example, when the user performs an operation to select the field name of another field F1 in the field name item 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, and also displays the variation coefficient Sf corresponding to the field F1 on the harvest information page P1. In addition, the output processing unit 216 displays each of the multiple fields F1 in a display mode according to the classified rank, as shown in FIG. 19.

[0112] Furthermore, the user can 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 harvest 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 "harvest yield." When the user selects "harvest yield" from the display items 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 according to the rank) according to the rank classified based on the harvest yield (average harvest 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 an arbitrary field F1 on the field information page P4 shown in FIG. 20, the output processing unit 216 may display the harvest yield map M1 (see FIG. 18) corresponding to the selected field F1.

[0114] Furthermore, the output processing unit 216 may display a map (variation coefficient map M2) showing the distribution of the variation coefficient 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] According to the farm work management system 1 equipped with the management server 2 shown in FIG. 17, the degree of variation in the yield within the field F1 can be quantified and displayed using the coefficient of variation Sf, allowing the user to objectively evaluate the yield. In addition, a coefficient of variation map M2 according to the degree of variation in the yield within the field F1 can be displayed, allowing the user to evaluate the harvest condition at a glance. Furthermore, the degree of variation of multiple fields F1 can be displayed in a comparative manner, allowing the user to simultaneously evaluate the harvest condition of each of the multiple fields. This makes it possible to improve the reliability of the evaluation of the yield of the field F1.

[0116] In addition, in the management server 2 shown in FIG. 17, similarly to the management server 2 shown in FIG. 1, the extraction processing unit 212 may extract the time information, the position information, and the operation information of a sampling interval T2 longer than the sampling interval T1 from the farm work information D1 (the position information, the harvest amount information, and the operation information) acquired by the acquisition processing unit 211, the creation processing unit 215 may create the evaluation information (traveling trajectory, vehicle speed change, etc.) corresponding to the combine harvester 4 based on the extracted time information, the position information, and the operation information (see FIG. 6), and the output processing unit 216 may output the evaluation information. In addition, the management server 2 shown in FIG. 17 may not have 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 in 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 performing crop harvesting work in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest amount information of the first sampling interval corresponding to the position of the first harvester; an extraction processing unit that extracts second farm work information having 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 a work state of the first harvester based on the second farm work information extracted by the extraction processing unit; An agricultural 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 position 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. 2. An agricultural 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. 2. An agricultural 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 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 claims 1 to 3.

[0121] <Appendix 5> a harvest calculation processing unit that calculates a harvest amount for 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 harvest yield map corresponding to the plurality of sections based on the harvest yield calculated by the harvest yield calculation processing unit; Further equipped with 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 claims 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, a storage processing unit is provided which 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 appendix 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 appendix 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 for 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 appendix 1 to 7.

[0125] <Appendix 9> acquiring first farm work information from a first harvester performing crop harvesting work in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest amount information of the first sampling interval corresponding to the position of the first harvester; extracting second farm work information having a second sampling interval longer than the first sampling interval from the first farm work information; outputting evaluation information for evaluating a work state of the first harvester based on the second farm work information; The agricultural work management method is carried out by one or more processors.

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

[0127] 1: Agricultural 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 department 311: Browser processing section 494: Position detection unit 495: Harvest volume detector DB1: Agricultural work information database DB2: Extraction Information Database

Claims

1. an acquisition processing unit that acquires first farm work information from a first harvester performing crop harvesting work in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest amount information of the first sampling interval corresponding to the position of the first harvester; an extraction processing unit that extracts second farm work information having 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 position information included in the second farm work information extracted by the extraction processing unit; an output processing unit that outputs the travel locus created by the creation processing unit; An agricultural 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 trajectory 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 trajectory 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 representing 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 farm work information extracted by the extraction processing unit, 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 amount for 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, The creation processing unit further creates a harvest yield map corresponding to the plurality of sections based on the harvest yield calculated by the harvest yield calculation processing unit, The output processing unit further outputs the harvest 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, Further, a storage processing unit is provided which 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 of detecting a harvest yield, When the acquisition processing unit acquires the farm work information for 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 farm work information from a first harvester performing crop harvesting work in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest amount information of the first sampling interval corresponding to the position of the first harvester; extracting second farm work information having 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; The agricultural operation management method is carried out by one or more processors.

10. acquiring first farm work information from a first harvester performing crop harvesting work in a farm field, the first farm work information including position information of the first harvester at a first sampling interval and harvest amount information of the first sampling interval corresponding to the position of the first harvester; extracting second farm work information having 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 farm management program for causing one or more processors to execute the above.

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