Work information management device, work information management program, and work information management method

Abstract

To provide a work information management device which can specify an area for calculation of collection data regardless of the shape of a registered farm field.SOLUTION: A work information management device 100 comprises: a storage device 140; and a computing device 120. The memory device 140 stores work area information 230 expressing a work area 231 of a farm field where work is performed in association with a plural pieces of work type information 220 expressing a work type 222 of the work. The computing device specifies a first overlapping area 250 overlapped with the work area 231 expressed by the work area information 230 corresponding to each of a first work type information group among the plural pieces of work type information 220 on the basis of the plural pieces of work type information 220 and the work area information 230. The first overlapping area 250 expresses an area for calculation of the first collection data about the work.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a work information management device, a work information management program, and a work information management method. [Background technology]

[0002] In recent years, there has been much research into using information on agricultural practices in fields to analyze cultivation management.

[0003] Patent Document 1 discloses a technique for dividing a specific farm field into small areas and using various aggregated data such as planting amount and harvest amount to analyze cultivation management. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] US Patent Application Publication No. 2015 / 0254800 Summary of the Invention [Problem to be solved by the invention]

[0005] The technology described in Patent Document 1 calculates aggregated data within a specific field, and does not take into consideration changes to the shape of the field. In general, the shape of a field changes frequently due to subdivision and consolidation, so with the technology described in Patent Document 1, it is necessary to change the registered field every time the shape of the field changes.

[0006] In view of the above, an object of the present disclosure is to provide a work information management device that can identify an area for calculating aggregate data regardless of the shape of the registered farm field. Other objects can be understood from the following description and the description of the embodiment. [Means for solving the problem]

[0007] The means for solving the problems will be described below using the numbers and symbols used in the description of the embodiment of the invention. These numbers and symbols are added in parentheses for reference purposes to show an example of the correspondence between the description of the claims and the description of the embodiment of the invention. Therefore, the description in parentheses should not be interpreted as limiting the scope of the claims.

[0008] To achieve the above object, a work information management device (100) according to an embodiment includes a storage device (140) and a calculation device (120). The storage device (140) stores work area information (230) representing a work area (231) of a field where work has been performed, and a plurality of pieces of work type information (220) representing work types (222) of the work, in association with each other. Based on the plurality of pieces of work type information (220) and the work area information (230), a first overlap area (250) is identified in which work areas (231) represented by work area information (230) corresponding to each of a first work type information group among the plurality of pieces of work type information (220) overlap. The first overlap area (250) represents an area when first aggregated data related to the work is calculated.

[0009] To achieve the above object, a work information management program (300) according to one embodiment causes a calculation device (120) to acquire work area information (230) representing a work area (231) of a field where work has been performed, and a plurality of pieces of work type information (220) representing work types (222) of the work. Furthermore, the work information management program (300) causes the calculation device (120) to identify a first overlap area (250) in which work areas (231) represented by work area information (230) corresponding to each of a first work type information group among the plurality of pieces of work type information (220) overlap, based on the plurality of pieces of work type information (220) and the work area information (230). The first overlap area (250) represents an area when first aggregated data related to the work is calculated.

[0010] A work information management method according to one embodiment for achieving the above object includes a calculation device (120) acquiring work area information (230) representing a work area (231) of a field where work has been performed, and a plurality of pieces of work type information (220) representing work types (222) of the work. The work information management method further includes identifying a first overlap area (250) in which work areas (231) represented by work area information (230) corresponding to each of a first work type information group among the plurality of pieces of work type information (220) overlap, based on the plurality of pieces of work type information (220) and the work area information (230). The first overlap area (250) represents an area when first aggregated data related to the work is calculated. Effect of the Invention

[0011] According to the above aspect, the work information management device can specify the area for calculating the aggregated data regardless of the shape of the registered farm field. [Brief description of the drawings]

[0012] [Figure 1] 1 is a schematic diagram of a work information management device according to an embodiment; [Diagram 2] FIG. 4 is a diagram illustrating a configuration of task data according to an embodiment. [Diagram 3] FIG. 13 is a diagram showing a work area for work ID “OP01” in one embodiment. [Figure 4] FIG. 13 is a diagram illustrating a work area for work ID “OP02” in one embodiment. [Diagram 5] FIG. 13 is a diagram illustrating a work area for work ID “OP03” in one embodiment. [Figure 6] FIG. 2 is a diagram illustrating a configuration of a work information management program according to an embodiment. [Figure 7] 1 is a flowchart illustrating a process performed by a work information management device according to an embodiment. [Figure 8] FIG. 13 is a diagram illustrating an overlapping region according to an embodiment. [Figure 9] FIG. 13 is a diagram illustrating an overlapping region according to an embodiment. [Figure 10] FIG. 2 is a diagram illustrating registered fields according to an embodiment. [Figure 11] 4 is a flowchart illustrating a process performed by a work information management device according to an embodiment. [Figure 12] FIG. 13 is a diagram illustrating an overlapping region according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] (Embodiment 1) A work information management device 100 according to this embodiment of the present invention will be described with reference to the drawings. In this embodiment, as shown in Fig. 1, the work information management device 100 is communicably connected to a terminal 10 and a work vehicle 30 via a network 20, for example, the Internet.

[0014] The work information management device 100 acquires operation information on the field from the work vehicle 30, and stores information indicating the type of work performed in the field, such as plowing, leveling, basal fertilizer spreading, planting, and chemical spraying, as well as the work period and work area, based on the acquired operation information. The operation information includes information indicating the state of the work vehicle 30 when working in the field, such as the speed, steering angle, engine speed, ON / OFF state of various clutches, position information of the work vehicle 30 at each time, and work period of the work vehicle 30. When the work vehicle 30 is a vehicle that pulls a work machine, such as a tractor, the operation information may include information indicating the PTO (power take-off) speed when transmitting power to the work machine, the hitch height and lift arm angle indicating the attitude of the work machine, and the set value of the amount of material applied.

[0015] The work information management device 100 calculates aggregated data related to work, such as planting amount, fertilizer application amount, yield, amount of fuel used, amount of pesticide sprayed, etc., based on the stored work type, work time, work area, etc. The calculated aggregated data is distributed to the terminal 10 via the network 20 and displayed. The work information management device 100 can calculate highly accurate aggregated data by calculating the aggregated data according to the identified work area. The aggregated data may include planting amount, fertilizer application amount, yield, etc. per unit area. The aggregated data may include data used in the analysis of cultivation management, such as data related to the productivity of the field.

[0016] In this way, the work information management device 100 executes a work information management method for managing work information related to work performed in a farm field, based on operation information acquired from the work vehicle 30.

[0017] The work information management device 100 includes an input / output device 110, a calculation device 120, a communication device 130, and a storage device 140. The work information management device 100 is, for example, a computer. Information for the calculation device 120 to execute processing is input to the input / output device 110. The input / output device 110 also outputs a result of the processing executed by the calculation device 120. The input / output device 110 includes various input devices and output devices, including, for example, a keyboard, a mouse, a microphone, a display, a speaker, a touch panel, and the like. The input / output device 110 may be omitted.

[0018] The communication device 130 is electrically connected to the network 20 and communicates with each device via the network 20. The communication device 130 transfers operation information acquired from the work vehicle 30 to the calculation device 120. The communication device 130 also transfers signals generated by the calculation device 120 to the terminal 10. The communication device 130 includes various interfaces, such as a network interface card (NIC) and a universal serial bus (USB).

[0019] The storage device 140 stores various data for calculating aggregated data related to work in a farm field, such as work data 200, and a work information management program 300. The storage device 140 is used as a non-transitory tangible storage medium that stores the work information management program 300. The work information management program 300 may be provided as a computer program product recorded on a computer-readable storage medium 1, or may be provided as a computer program product downloadable from a server.

[0020] The work data 200 includes data related to work in a field. For example, as shown in Fig. 2, the work data 200 includes a work ID 210, work type information 220, and work area information 230, and the work ID 210, work type information 220, and work area information 230 are associated with each other. The work ID 210 is, for example, an extension that distinguishes the unit of work performed in a field, and a different value is set for the work ID 210 for each work. The work type information 220 represents the content of the work performed in the field, and the work area information 230 represents the work area of ​​the field where the work was performed. One work ID 210 represents that one common work represented in the work type information 220 has been performed in the work area represented in the work area information 230.

[0021] The work type information 220 includes, for example, information indicating a work period 221, information indicating a work type 222, and information indicating work results 223. The work period 221 indicates the time when work in the field started and ended, for example, the time when the work vehicle 30 entered the field and the time when it left the field. The work type 222 indicates the type of work performed in the field, for example, plowing, leveling, base fertilization, planting, and chemical spraying. The work type 222 is estimated based on the operation information acquired from the work vehicle 30. The work results 223 indicate the amount of materials used in the work, for example, the amount planted and the amount of fertilizer sprayed. The work results 223 also indicate the amount of materials obtained in the work, for example, the harvest amount. The work results 223 may represent the amount of materials used or obtained at the work location in the field, for example, in each divided area obtained by dividing the area in which the work was performed into a mesh shape, or may represent the amount of materials used or obtained in the entire area in which the work was performed in the field.

[0022] The working area information 230 includes, for example, information representing a working area 231 and information representing a working area 232. The working area 231 represents the position and shape of the area in the field where work was performed. The working area 231 may represent one or more areas. For example, A and B, whose work ID 210 is indicated by "OP01", may represent two divided working areas 231A and 231B as shown in FIG. 3. The working area 231A and the working area 231B are areas where work with the same work ID 210 "OP01" was performed, and therefore represent areas where the same work, in this case "basal fertilization", was performed. The working area 231A and the working area 231B may also represent areas where the difference in the amount of materials used or obtained per unit area is smaller than a predetermined value. 2 represents the area of ​​the area in the field where work has been performed, and in the case of work ID 210, represents the value obtained by adding the area of ​​work area 231A to the area of ​​work area 231B. The position of work area 231 may be represented in any way, for example, by latitude and longitude.

[0023] Here, an example will be described in which data representing "OP01", "OP02", and "OP03" as the task ID 210 shown in Fig. 2 is stored in the task data 200. As described above, the task represented by the task ID 210 "OP01" is "base fertilizer application" represented in the task type 222. The task record 223 represents the amount of fertilizer spread in the work area 231A and the work area 231B.

[0024] The work represented by work ID 210 "OP02" is "planting" represented in work type 222. Work record 223 represents the amount of planting planted in work areas 231C-F. Work areas 231C and 231D represent areas obtained by dividing work area 231A into two, as shown in FIG. 4. For example, work areas 231C and 231D are separated because work was performed at different times, for example in the morning and afternoon. Work areas 231E and 231F represent areas obtained by dividing work area 231B into two.

[0025] As shown in FIG. 2, the work represented by work ID 210 "OP03" has "pesticide spraying" represented in work type 222. Work history 223 shows the amount of pesticide sprayed in work areas 231A and 231E. As shown in FIG. 5, the work represented by work ID 210 "OP03" sprayed pesticide in work areas 231A and 231E, but did not spray pesticide in work area 231F. Therefore, work area 232 of work data 200 shown in FIG. 2 represents the area of ​​work area 231A plus the area of ​​work area 231E.

[0026] The work data 200 is read out by the arithmetic device 120 shown in Fig. 1 and used for various data processing to calculate aggregated data related to work in the field. The arithmetic device 120 reads out the work information management program 300 from the storage device 140 and executes it to calculate the aggregated data based on the work data 200. For example, the arithmetic device 120 includes a central processing unit (CPU) and the like.

[0027] The arithmetic device 120 executes the work information management program 300 to register various data in the work data 200 based on the operation information obtained from the work vehicle 30, and calculates aggregated data related to work in the field. As shown in FIG. 6, the work information management program 300 causes the arithmetic device 120 to execute a work registration means 310, an area specification means 320, and a counting means 330. By the work registration means 310, the arithmetic device 120 determines the work type information 220 and the work area information 230 based on the operation information obtained from the work vehicle 30, and registers the determined work type information 220 and the work area information 230 in the work data 200. By the area specification means 320, the arithmetic device 120 specifies the area where the same work was performed based on the work data 200. By the counting means 330, the arithmetic device 120 calculates the aggregated data in the specified area.

[0028] (Operation of the work information management device) When the work information management device 100 receives operation information from the work vehicle 30, it registers work type information 220 and work area information 230 in the work data 200. In addition, the work information management device 100 calculates aggregated data related to the work performed in the field based on the work data 200 by the process shown in Fig. 7.

[0029] A method in which the work information management device 100 registers the work type information 220 and the work area information 230 in the work data 200 will be described. First, the calculation device 120 determines the work type information 220 and the work area information 230 based on operation information obtained from the work vehicle 30. The calculation device 120 determines the period from when the work vehicle 30 starts up, for example when the engine starts, until when the work vehicle 30 stops, for example when the engine stops, as the work period 221 shown in Fig. 2. The calculation device 120 may also determine the work period 221 based on the times when the work of the work vehicle 30 starts and ends, and, for example, the times when a work machine towed by the work vehicle 30 starts and stops.

[0030] The calculation device 120 may determine the work type 222 of the work type information 220 based on the model of the work vehicle 30 and / or the model of the work machine towed by the work vehicle 30. For example, the storage device 140 may store work correspondence data that associates the model of the work vehicle 30 and / or the type of work machine towed by the work vehicle 30 with the work represented in the work type 222. The calculation device 120 determines the work type 222 based on the work correspondence data. The calculation device 120 may also determine the work type 222 using an execution engine obtained by machine learning. In this case, the execution engine is trained to determine the work type 222 from the operation information.

[0031] The arithmetic device 120 calculates the amount of materials shown in the work record 223 based on the operation information of the work vehicle 30, such as the PTO rotation speed, the hitch height, the lift arm angle, and the set value of the amount of materials applied. The amount of materials may be input by the user to the terminal 10 shown in FIG. 1. In this case, the amount of materials input to the terminal 10 is transmitted to the work information management device 100 via the network 20. The arithmetic device 120 of the work information management device 100 acquires the amount of materials via the communication device 130. The amount of materials applied represents the amount of fertilizer to be spread per unit time set in the work vehicle 30, the amount of pesticide to be spread per unit time, the amount of seedlings to be planted per unit travel distance, or the amount of seeds to be spread per unit time.

[0032] The arithmetic device 120 determines the work area 231 shown in Fig. 2 based on the position information of the work vehicle 30. The work vehicle 30 is equipped with a positioning device, for example, a GNSS (Global Navigation Satellite System) receiver, and acquires position information indicating the position at each time when it moved to the work period 221. The acquired position information is transmitted from the work vehicle 30 to the arithmetic device 120 of the work information management device 100. The arithmetic device 120 determines the work area 231 based on the acquired position information. For example, the work area 231 is any closed figure, such as a polygon or rectangle, that includes the position represented in the acquired position information. For example, the work area 231 is represented by a figure that surrounds all of the acquired position information.

[0033] The computing device 120 calculates the working area 232 based on the calculated working region 231 .

[0034] The calculation device 120 registers the determined task type information 220 and task area information 230 in the task data 200. For example, the calculation device 120 registers the determined task type information 220 and task area information 230 as one task ID 210. The calculation device 120 may also determine whether the task type information 220 and task area information 230 are included in one task ID 210 or are divided into multiple task IDs 210 based on the task type information 220 and task area information 230. For example, when the variance value of the task results 223 of each area divided into a mesh in one task area 231 is greater than a predetermined value, the calculation device 120 may register the task type information 220 and task area information 230 as two task IDs 210. When the variance value of the task results 223 calculated in multiple task areas 231 is less than a predetermined value, the calculation device 120 may register the task type information 220 and task area information 230 as one task ID 210. The calculation device 120 may register the task type information 220 and the task area information 230 as one task ID 210 based on the task period 221, or may register them as two separate task IDs 210. The registered task data 200 is held in the storage device 140 based on an instruction from the calculation device 120.

[0035] Next, a method will be described in which the work information management device 100 calculates aggregated data related to work performed in a farm field by the process shown in Fig. 7. The process shown in Fig. 7 is started, for example, when the calculation device 120 of the work information management device 100 receives a request signal requesting aggregated data from the terminal 10 shown in Fig. 1.

[0036] In step S110 shown in FIG. 7, the arithmetic device 120 identifies an overlapping area 250 where the work areas 231 corresponding to the multiple pieces of work type information 220 overlap, based on the multiple pieces of work type information 220 and the work area information 230. First, the arithmetic device 120 acquires work data 200 including the work type information 220 and the work area information 230 from the storage device 140. The arithmetic device 120 extracts a group of work type information whose work type information 220 satisfies an extraction condition from among the work in the work data 200. The extraction condition is a condition that should be satisfied by a target for calculating aggregate data. For example, the extraction condition may be that the work period 221 is included in a predetermined period. For example, the arithmetic device 120 extracts "OP01", "OP02", and "OP03" shown in FIG. 2 as a group of work type information that satisfies the extraction condition.

[0037] Next, the arithmetic device 120 specifies an area where the work area 231 overlaps in the extracted task type information group. For example, the arithmetic device 120 specifies an area where the work area 231 overlaps in "OP01", "OP02", and "OP03" shown in FIG. 2. Since the work area 231C shown in FIG. 4 overlaps with the work area 231A shown in FIGS. 3 and 5, the work area 231C is included in the overlapping area 250 as shown in FIG. 8. Similarly, the work area 231D shown in FIG. 4 overlaps with the work area 231A shown in FIGS. 3 and 5, and is included in the overlapping area 250. Since the work area 231E shown in FIG. 4 overlaps with the work area 231B shown in FIG. 3 and the work area 231E shown in FIG. 5, it is included in the overlapping area 250. On the other hand, the work area 231F shown in FIG. 4 is included in the work area 231B shown in FIG. 3, but is not included in the work area 231 of "OP03" as shown in FIG. 5. Therefore, the working area 231F is not included in the overlapping area 250, as shown in FIG.

[0038] The overlapping area 250 represents a unit of area for calculating aggregated data related to work in a farm field, and is an area obtained by combining areas where similar work was performed in a work type information group that satisfies the extraction conditions. For example, the overlapping area 250 shown in Fig. 8 is an area where work was performed in "OP01", "OP02", and "OP03" shown in Fig. 2, and is an area where similar work was performed during the period from "OP01" to "OP03". The overlapping area 250 is, for example, an area obtained by combining the smallest areas registered in the work data 200 during a specified period.

[0039] Furthermore, since work area 231F is an area where similar work was performed during the period from "OP01" to "OP03", arithmetic device 120 may specify work area 231F as an overlap area 250 different from that in FIG. 8, as shown in FIG. 9. Overlap area 250 is an area where a common work was performed in a work type information group that satisfies the extraction condition. Therefore, when multiple overlap areas 250 are specified, arithmetic device 120 specifies overlap areas 250 so that they do not overlap each other.

[0040] Specifically, the arithmetic device 120 determines whether the work area 231 corresponding to the work satisfying the extraction condition, for example, the work of "OP01" to "OP03", includes an area excluding the identified overlap area 250, for example, the overlap area 250 shown in FIG. 8. When an area excluding the overlap area 250 is included, the arithmetic device 120 identifies a new overlap area 250 for the area excluding the already identified overlap area 250. In this way, the arithmetic device 120 may repeat the process of identifying the overlap area 250 until all work areas 231 corresponding to the work satisfying the extraction condition are included in any one of the overlap areas 250.

[0041] 7, the calculation device 120 calculates aggregated data for each identified overlap area 250 as a unit area based on the work results 223 of the work type information 220. When the work results 223 indicate the amount of materials corresponding to a position within the work area 231, the calculation device 120 extracts the amount of materials at the positions included in the overlap area 250 to calculate the aggregated data. For example, the calculation device 120 calculates the aggregated data by adding up the amounts of materials at the positions included in the overlap area 250.

[0042] When the work results 223 indicate the amount of materials used or obtained in the entire work area 231, the calculation device 120 may calculate the amount of materials to be used in the aggregate data based on the area ratio of the work area 231 corresponding to this work to the overlap area 250. For example, when calculating the amount of materials to be used in the aggregate data for a work corresponding to "OP02", the calculation device 120 calculates the area of ​​the overlap area 250 by adding up the areas of the work areas 231C, 231D, and 231E corresponding to the overlap area 250. The calculation device 120 also extracts the work area 232 corresponding to "OP02" from the work data 200 as the area of ​​the area where the work was performed in "OP02". The calculation device 120 multiplies the amount of materials represented in the work results 223 by the ratio of the area of ​​the overlap area 250 to the work area 232 to calculate the amount of materials to be used in the aggregate data.

[0043] In this way, the arithmetic device 120 of the work information management device 100 can calculate the aggregate data for each area where the common work was actually performed. For this reason, the aggregate data may include the ratio between the amount of materials used and the amount of materials obtained, for example, the ratio of the harvest yield to the amount of fertilizer applied, the ratio of the harvest yield to the amount of fuel used, etc., and may include information indicating the productivity of the work. In addition, the arithmetic device 120 may calculate the difference, for example, difference, ratio, etc., between the aggregate data in a certain overlap area 250 and the aggregate data in another overlap area 250 corresponding to the aggregate data. For example, the user can analyze the difference in harvest yield due to the difference in work by checking the ratio of the aggregate data in different overlap areas 250, for example, the ratio of the harvest yield.

[0044] The task registration means 310 causes the calculation device 120 to execute a process of registering and retaining the task type information 220 and task area information 230 in the task data 200. The area identification means 320 causes the calculation device 120 to execute the process of step S110. The aggregation means 330 causes the calculation device 120 to execute the process of step S120.

[0045] The computing device 120 transmits an aggregation signal representing the calculated aggregated data to the terminal 10 in response to a request from the terminal 10 shown in Fig. 1. The terminal 10 displays the aggregated data based on the received aggregation signal. This allows the user to view the aggregated data for each area where a common task has been performed. Note that the terminal 10 may be installed with dedicated software for displaying the aggregated data, or with general-purpose display software for displaying the aggregated data, such as a web browser.

[0046] (Embodiment 2) In the work information management device 100, a registered field 260 may be registered as an area of ​​a field where the work vehicle 30 performs work. When a part of the area represented in the overlap area 250 is included in the registered field 260, the work information management device 100 may integrate the areas included in the registered field 260 into one area. In this case, the storage device 140 of the work information management device 100 stores information representing the area of ​​the registered field 260. As shown in FIG. 10, an example will be described in which the registered field 260 is registered as a work area 231A. Note that the information representing the registered field 260 is input, for example, from the terminal 10, transmitted from the terminal 10 to the work information management device 100 via the network 20, and stored in the storage device 140 of the work information management device 100.

[0047] The detailed configuration of the work information management device 100 is similar to that of the first embodiment, and therefore will not be described.

[0048] When the work information management device 100 receives operation information from the work vehicle 30, it registers work type information 220 and work area information 230 in the work data 200. Furthermore, the work information management device 100 calculates aggregated data related to the work performed in the field based on the work data 200 by the process shown in Fig. 11. The method by which the work information management device 100 registers the work type information 220 and work area information 230 in the work data 200 is similar to that in the first embodiment, and therefore a description thereof will be omitted.

[0049] A method will be described in which the work information management device 100 calculates aggregated data related to work performed in a field by the process shown in Fig. 11. The process shown in Fig. 11 starts, for example, as in the first embodiment, when the calculation device 120 of the work information management device 100 receives a request signal requesting aggregated data from the terminal 10 shown in Fig. 1.

[0050] The process of step S110 is the same as in the first embodiment, and therefore the description will be omitted.

[0051] When overlapping area 250 is identified by the processing in step S110, calculation device 120 extracts overlapping area 250 included in registered field 260 as an extracted area in step S112. For example, working area 231C and working area 231D in overlapping area 250 shown in Fig. 8 overlap with working area 231A of registered field 260 shown in Fig. 10. Therefore, calculation device 120 extracts working area 231C and working area 231D.

[0052] In step S114, the calculation device 120 determines whether the ratio of the area of ​​the registered field 260 to the area of ​​the extraction region is equal to or greater than a predetermined value. If the ratio of the area of ​​the registered field 260 to the area of ​​the extraction region is equal to or greater than the predetermined value, the calculation device 120 executes the process of step S116. If the ratio of the area of ​​the registered field 260 to the area of ​​the extraction region is smaller than the predetermined value, the calculation device 120 executes the process of step S120.

[0053] The arithmetic device 120 calculates the ratio between the area of ​​the registered field 260 and the area of ​​the extraction area. For example, the arithmetic device 120 calculates the area of ​​the extraction area by adding up the area of ​​the working area 231C and the area of ​​the working area 231D extracted from the overlapping area 250. The arithmetic device 120 also calculates the area of ​​the working area 231A as the area of ​​the registered field 260. The ratio between the area of ​​the registered field 260 and the area of ​​the extraction area is calculated by dividing the area of ​​the extraction area by the area of ​​the registered field 260. Based on the calculated ratio, the arithmetic device 120 determines the next process to be executed. The area of ​​the registered field 260 may be stored in the storage device 140 in advance.

[0054] In step S116, the calculation device 120 combines the extracted areas to modify the new overlapping area 250. For example, the calculation device 120 combines the extracted working areas 231C and 231D to change the overlapping area 250 to working areas 231A and 231E, as shown in FIG.

[0055] Step S120 shown in FIG. 11 is the same as in the first embodiment, and therefore the description will be omitted.

[0056] In this way, the data size can be reduced by integrating the working areas 231 included in the overlapping area 250. The area specifying means 320 causes the arithmetic device 120 to execute the processes of steps S112 to S116.

[0057] (Modification) The configuration described in the embodiment is an example, and the configuration can be changed without impairing the function. The extraction condition in step S110 may be that the predetermined period includes the task period 221. For example, the calculation device 120 may extract tasks from the task data 200 that include a time period from when the request signal for the aggregated data was received to a time a predetermined period before, to identify the overlapping area 250. More specifically, the calculation device 120 may extract tasks from the past year from the task data 200 to identify the overlapping area 250.

[0058] The extraction condition in step S110 may be that the work type 222 is included in one or more predetermined types. The arithmetic device 120 extracts work that corresponds to the work type 222 according to the order of the farm work, for example. For example, when the extraction condition represents work from "plowing" to "harvesting", the arithmetic device 120 extracts the work type 222 that corresponds to the range between "plowing" and "harvesting". The overlapping area 250 is identified based on the extracted work.

[0059] The extraction conditions may be input from the terminal 10 shown in Fig. 1. The terminal 10 transmits an extraction signal representing the input extraction conditions to the work information management apparatus 100. The arithmetic device 120 of the work information management apparatus 100 extracts tasks from the work data 200 based on the received extraction signal.

[0060] In step S116, the calculation device 120 may replace the extraction area with the registered field 260. For example, when the predetermined value in step S114 is close to 1, for example 0.95 or greater, the extraction area approximates the registered field 260. The registered field 260 represents an area where preset work is performed, and the extraction area represents an area calculated based on the operation information of the work vehicle 30. For this reason, the extraction area contains measurement errors, so by replacing it with the registered field 260, it is possible to obtain tabulated data with higher accuracy.

[0061] The arithmetic device 120 may omit step S114. In this case, the extracted regions are integrated regardless of their sizes. In this case, the processing load of the arithmetic device 120 is reduced.

[0062] In step S114, the arithmetic device 120 may determine whether the ratio of the area of ​​the extraction region to the area of ​​the registered field 260 is equal to or greater than a predetermined first value and equal to or less than a predetermined second value. When the ratio of the area of ​​the registered field 260 to the area of ​​the extraction region is equal to or greater than the first value and equal to or less than the second value, the arithmetic device 120 executes the process of step S116. When the ratio of the area of ​​the registered field 260 to the area of ​​the extraction region is smaller than the first value or larger than the second value, the arithmetic device 120 executes the process of step S120. In this case, the arithmetic device 120 executes step S116 even when the extraction region is larger than the registered field 260.

[0063] In step S112, the calculation device 120 may extract one or more work areas 231 including the registered field 260 as the extraction area.

[0064] Although an example has been shown in which the work information management device 100 acquires the operation information of the work vehicle 30 directly from the work vehicle 30, the present invention is not limited to this, and any configuration can be selected as long as the work information management device 100 can acquire the operation information. For example, the operation information may be transmitted from the work vehicle 30 to the work information management device 100 via the terminal 10.

[0065] In the above embodiment, the work information management device 100 is a computer, but is not limited to this. For example, the arithmetic device 120 may include one or more computers. In this case, each of the multiple computers may execute a part of the process of calculating the aggregate data.

[0066] In addition, the configurations described in the embodiments and modifications may be modified and / or combined as desired without impairing the functions. Furthermore, some of the functions described in the embodiments and modifications may be omitted as long as the necessary functions can be realized. [Explanation of symbols]

[0067] 1:Storage medium 10: Terminal 20: Network 30: Work vehicle 100: Work information management device 110: Input / Output device 120: Arithmetic device 130: Communication equipment 140: Storage device 200: Work data 210: Work ID 220: Work type information 221: Work period 222: Work type 223: Work history 230: Work area information 231 :Work area 232:Working area 250: Overlapping area 260: Registered fields 300: Work information management program 310: Work registration means 320: Area identification means 330: Means of collection

Claims

1. a storage device that stores work area information indicating a work area of ​​a field where work has been performed and a plurality of pieces of work type information indicating work types of the work in association with each other; a calculation device that identifies a first overlapping area in which the work areas represented by the work area information corresponding to each of a first work type information group among the plurality of work type information overlap based on the plurality of work type information and the work area information; Equipped with The first overlapping area represents an area when first summary data regarding the work is calculated. Work information management device.

2. The calculation device specifies a second overlapping area in which the work areas represented by the work area information corresponding to each of the second work type information groups overlap, based on the plurality of work type information and the work area information; The second overlapping area represents an area when second aggregate data related to the work is calculated, and does not overlap with the first overlapping area. The work information management device according to claim 1 .

3. The calculation device calculates a difference between the first aggregated data in the first overlapping region and the second aggregated data corresponding to the first aggregated data in the second overlapping region. The work information management device according to claim 2 .

4. the storage device stores information representing a registered field in which the work is to be performed; The calculation device combines the work area including the registered field in the first overlap area into one area. The work information management device according to claim 1 .

5. the storage device stores information representing a registered field in which the work is to be performed; The calculation device replaces the work area including the first overlapping area with the registered field based on an area of ​​the registered field and an area of ​​the work area including the registered field in the first overlapping area. The work information management device according to claim 1 .

6. The work type information includes information representing the amount of materials used or obtained in the work, The calculation device calculates the first aggregate data in the first overlap area based on the amount of material. The work information management device according to any one of claims 1 to 5.

7. The first aggregate data includes a ratio of an amount of material used in the operation to an amount of material obtained in the operation in the first overlapping area. The work information management device according to claim 6.

8. The first aggregate data includes the amount of the material used or obtained per unit area. The work information management device according to claim 6 or 7.

9. The computing device includes: Acquire operation information when a work vehicle used for the work is performing the work; Identifying the work area and the work type based on the operation information The work information management device according to any one of claims 1 to 8.

10. The calculation device calculates the first aggregate data based on the first overlapping area. The work information management device according to any one of claims 1 to 9.

11. Acquiring work area information that indicates a work area of ​​a field where work has been performed and a plurality of pieces of work type information that indicate work types of the work; Identifying a first overlapping area in which the work areas represented by the work area information corresponding to each of a first work type information group among the plurality of work type information overlap based on the plurality of work type information and the work area information; and causing a computing device to execute the following: The first overlapping area represents an area when first summary data regarding the work is calculated. Work information management program.

12. The computing device Acquiring work area information that indicates a work area of ​​a field where work has been performed and a plurality of pieces of work type information that indicate work types of the work; Identifying a first overlapping area in which the work areas represented by the work area information corresponding to each of a first work type information group among the plurality of work type information overlap based on the plurality of work type information and the work area information; Including, The first overlapping area represents an area when first summary data regarding the work is calculated. Work information management method.

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