Sharing method, sharing system, and sharing program

Abstract

To support sharing of agricultural materials.SOLUTION: A sharing method includes determining consumption quantity representing the quantity of agricultural materials used by a work device 100 on the basis of operation information of the work device 100 of a user who performs work in a farm field 500. Also, the sharing method includes estimating surplus quantity 443 representing the quantity of agricultural materials scheduled not to be used among agricultural materials owned by the user on the basis of the consumption quantity and quantity obtained representing the quantity of agricultural materials obtained by the user. The sharing method includes outputting surplus information representing the surplus quantity 443. Further, the sharing method includes acquiring desired provision information representing that the user wants to provide the agricultural materials or desired acquisition information representing that the user wants to acquire agricultural materials.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a sharing method, a sharing system, and a sharing program. [Background technology]

[0002] In recent years, agricultural machinery sharing has been an effort to reduce initial investment and maintenance costs.

[0003] Patent Document 1 discloses an intermediation system that makes it easy to find an agricultural machinery sharer that is suitable for the work. This intermediation system allows a person who wants to rent an agricultural machinery to select the work they will be doing by renting the agricultural machinery from the registered work plan, and then notifies the person of agricultural machinery shares that have the agricultural machinery that is suitable for the work. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7281144 Summary of the Invention [Problem to be solved by the invention]

[0005] The technology described in Patent Document 1 discloses a technology for sharing agricultural machinery, but does not disclose a technology for sharing agricultural materials, such as fertilizers and pesticides. The types of agricultural materials vary depending on the crops being cultivated, and even if there is a large stock, it may not all be consumed within the expiration date. Furthermore, due to the outbreak of pests and diseases, there may be a shortage of the planned agricultural materials. However, agricultural materials cannot be treated in the same way as agricultural machinery, as the stock amount fluctuates with daily use.

[0006] In view of the above circumstances, one of the objects of the present disclosure is to support the sharing of agricultural materials. Other objects can be understood from the following description and explanation of the embodiments. [Means for solving the problem]

[0007] The following describes the means for solving the problems using the numbers and symbols used in the description of the invention. These numbers and symbols are added in parentheses for reference purposes to show an example of the correspondence between the claims and the description of the invention. Therefore, the claims should not be interpreted as being limited by the parenthetical descriptions.

[0008] To achieve the above object, a sharing method according to one embodiment includes determining a first consumption quantity representing the quantity of agricultural materials used by a first work implement (100) of a first user working in a first field (500) based on operation information of the first work implement (100) of the first user. The sharing method also includes estimating a first surplus quantity (443) representing the quantity of agricultural materials owned by the first user that are not scheduled for use, based on the first consumption quantity and a first acquisition quantity representing the quantity of agricultural materials acquired by the first user. The sharing method also includes outputting surplus information representing the first surplus quantity (443). The sharing method also includes acquiring provision request information representing a request by the first user to provide agricultural materials, or acquisition request information representing a request by the first user to acquire agricultural materials.

[0009] To achieve the above object, a sharing method according to one embodiment includes estimating a first planned use quantity of agricultural materials that a first user plans to use in a first field (500) based on work plan information (431) that indicates work planned to be performed in the first field (500). The sharing method also includes estimating a first surplus quantity (443) that indicates the quantity of agricultural materials owned by the first user that are not planned to be used based on the first planned use quantity and a first acquisition quantity that indicates the quantity of agricultural materials acquired by the first user. The sharing method also includes outputting surplus information that indicates the first surplus quantity (443). The sharing method also includes acquiring provision request information that indicates the first user's desire to provide agricultural materials, or acquisition request information that indicates the first user's desire to acquire agricultural materials.

[0010] To achieve the above object, a sharing method according to one embodiment includes estimating an event use quantity, which represents the quantity of agricultural materials planned to be consumed to respond to the event, based on event information representing an event affecting crops and the area of ​​a first field. The sharing method also includes estimating a first surplus quantity (443), which represents the quantity of agricultural materials owned by the first user that are not planned to be used, based on the event use quantity and a first acquisition quantity, which represents the quantity of agricultural materials acquired by the first user. The sharing method also includes outputting surplus information representing the first surplus quantity (443). The sharing method also includes acquiring provision request information, which represents the first user's desire to provide agricultural materials, or acquisition request information, which represents the first user's desire to acquire agricultural materials.

[0011] To achieve the above object, a sharing system (1000) according to one embodiment includes a consumption determination unit (350), a surplus estimation unit (370), an output unit (380), and a negotiation support unit (390). The consumption determination unit (350) determines a first consumption quantity representing the quantity of agricultural materials used by a first work implement (100) of a first user working in a first field (500) based on operation information of the first work implement (100). The surplus estimation unit (370) estimates a first surplus quantity (443) representing the quantity of agricultural materials owned by the first user that are not scheduled for use, based on the first consumption quantity and a first acquisition quantity representing the quantity of agricultural materials acquired by the first user. The output unit (380) outputs surplus information representing the first surplus quantity (443). The negotiation support unit (390) acquires supply request information indicating that the first user wishes to supply agricultural materials, or acquisition request information indicating that the first user wishes to acquire agricultural materials.

[0012] To achieve the above object, a sharing system (1000) according to one embodiment includes a use estimation unit (360), a surplus estimation unit (370), an output unit (380), and a negotiation support unit (390). The use estimation unit (360) estimates a first planned use quantity of agricultural materials that a first user plans to use in a first field (500) based on work plan information (431) that indicates work planned to be performed in the first field (500). The surplus estimation unit (370) estimates a first surplus quantity (443) that indicates the quantity of agricultural materials owned by the first user that are not planned to be used based on the first planned use quantity and a first acquisition quantity that indicates the quantity of agricultural materials acquired by the first user. The output unit (380) outputs surplus information that indicates the first surplus quantity (443). The negotiation support unit (390) acquires supply request information indicating that the first user wishes to supply agricultural materials, or acquisition request information indicating that the first user wishes to acquire agricultural materials.

[0013] To achieve the above object, a sharing system (1000) according to one embodiment includes a usage estimation unit (360), a surplus estimation unit (370), an output unit (380), and a negotiation support unit (390). The usage estimation unit (360) estimates an event usage quantity, which represents the quantity of agricultural materials planned to be consumed to respond to an event, based on event information representing an event affecting crops and the area of ​​a first field. The surplus estimation unit (370) estimates a first surplus quantity (443), which represents the quantity of agricultural materials owned by the first user that are not planned to be used, based on the event usage quantity and a first acquisition quantity, which represents the quantity of agricultural materials acquired by the first user. The output unit (380) outputs surplus information representing the first surplus quantity (443). The negotiation support unit (390) acquires supply request information, which represents the first user's desire to supply agricultural materials, or acquisition request information, which represents the first user's desire to acquire agricultural materials.

[0014] To achieve the above object, a sharing program (470) according to one embodiment causes a calculation device (120, 220, 320) to determine a first consumption quantity representing the quantity of agricultural materials used by a first work implement (100) of a first user working in a first field (500) based on operation information of the first work implement (100). The sharing program (470) also causes the calculation device (120, 220, 320) to estimate a first surplus quantity (443) representing the quantity of agricultural materials owned by the first user that are not scheduled for use, based on the first consumption quantity and a first acquisition quantity representing the quantity of agricultural materials acquired by the first user. The sharing program (470) causes the calculation device (120, 220, 320) to output surplus information representing the first surplus quantity (443). Furthermore, the sharing program (470) causes the arithmetic device (120, 220, 320) to acquire provision request information indicating that the first user wishes to provide agricultural materials, or acquisition request information indicating that the first user wishes to acquire agricultural materials.

[0015] To achieve the above object, a sharing program (470) according to one embodiment causes a calculation device (120, 220, 320) to estimate a first planned use quantity of agricultural materials that a first user plans to use in a first field (500) based on work plan information (431) that indicates work planned to be performed in the first field (500). The sharing program (470) also causes the calculation device (120, 220, 320) to estimate a first surplus quantity (443) that indicates the quantity of agricultural materials owned by the first user that are not planned to be used, based on the first planned use quantity and a first acquisition quantity that indicates the quantity of agricultural materials acquired by the first user. The sharing program (470) causes the calculation device to output surplus information that indicates the first surplus quantity (443). Furthermore, the sharing program (470) causes the computing device to acquire provision request information indicating that the first user wishes to provide agricultural materials, or acquisition request information indicating that the first user wishes to acquire agricultural materials. [Effects of the Invention]

[0016] According to the above embodiment, agricultural materials can be shared efficiently. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram of a sharing system according to one embodiment. [Figure 2] 4A and 4B are diagrams for explaining a position measured by a working device according to an embodiment; [Figure 3] FIG. 10 is a diagram for explaining a margin quantity estimated in one embodiment. [Figure 4] FIG. 10 is a diagram for explaining a margin quantity estimated in one embodiment. [Figure 5] 1 is a diagram illustrating a configuration of a working device according to an embodiment. [Figure 6] FIG. 2 is a diagram illustrating functional blocks executed by the sharing system according to an embodiment. [Figure 7]FIG. 2 is a diagram illustrating a configuration of a display terminal according to an embodiment. [Figure 8] FIG. 1 is a diagram illustrating a configuration of a sharing device according to an embodiment. [Figure 9] FIG. 2 is a diagram for explaining farm field data according to an embodiment. [Figure 10] FIG. 3 is a diagram for explaining work plan data according to an embodiment. [Figure 11] 1 is a flowchart showing the processing of a sharing system when a user acquires agricultural materials in one embodiment. [Figure 12A] 10 is a flowchart showing processing of a sharing system when work plan information is registered in one embodiment. [Figure 12B] 10 is a flowchart showing processing of a sharing system when work plan information is registered in one embodiment. [Figure 13] 10 is a flowchart showing the processing of a sharing system when a work implement performs work in a farm field in one embodiment. [Figure 14] 10 is a flowchart showing the processing of the sharing system when event information indicating an event that affects agricultural work is received in one embodiment. [Figure 15] 1 is a flowchart showing the processing of a sharing system when a large amount of agricultural materials is acquired in one embodiment. [Figure 16] FIG. 10 is a diagram for explaining a margin quantity estimated in one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] (Embodiment) A sharing system 1000 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 sharing system 1000 includes one or more maintenance apparatuses 100 (e.g., a first maintenance apparatus 100-1 and a second maintenance apparatus 100-2), one or more display terminals 200 (e.g., a first display terminal 200-1 and a second display terminal 200-2), and a sharing apparatus 300. The sharing apparatus 300 is communicatively connected to the information distribution apparatus 30, the maintenance apparatus 100, and the display terminal 200 via a network 20, for example, the Internet. For example, the first maintenance apparatus 100-1 and the first display terminal 200-1 are used by a first user among a plurality of users. The second maintenance apparatus 100-2 and the second display terminal 200-2 are used by a second user, different from the first user, among the plurality of users. One user may use multiple maintenance apparatuses 100.

[0019] The sharing device 300 manages the quantity, e.g., mass, of agricultural materials, such as fertilizers and pesticides, owned by the user. For example, when a user obtains, e.g., purchases, agricultural materials, the user inputs the obtained quantity into the display terminal 200. The input quantity of the agricultural materials is transmitted from the display terminal 200 to the sharing device 300. The sharing device 300 adds the quantity of the agricultural materials obtained by the user to the quantity of the agricultural materials owned by the user before the acquisition, thereby updating the quantity of the agricultural materials owned by the user.

[0020] Furthermore, the sharing device 300 reflects the quantity of agricultural materials consumed by a user in work in one or more fields 500 in the quantity of agricultural materials owned by the user. For example, the sharing device 300 determines the quantity of agricultural materials consumed in the field 500 based on operation information of the work device 100 performing work in the field 500. The operation information includes, for example, position information indicating the position of the work device 100 and status information indicating the status of the work device 100.

[0021] The task device 100 measures a positioning position 520 that indicates the location of the task device 100 at each time. For example, as shown in FIG. 2, the task device 100 moves while performing work in a farm field 500. Therefore, the measured positioning position 520 indicates a position on a trajectory 510 along which the task device 100 has moved. The task device 100 also measures status information that indicates the status of the task device 100 at each time, such as the amount of agricultural materials consumed in the work. For example, the status information is measured together with the positioning position 520 and indicates the status of the task device 100 at the positioning position 520.

[0022] The sharing device 300 determines the quantity of agricultural materials consumed by the work device 100 in working in the field 500, based on the operation information when the work device 100 is working in the field 500. The quantity of agricultural materials that the user will own after the work is determined by subtracting the determined quantity of agricultural materials from the quantity of agricultural materials that the user owns.

[0023] 3, based on work plan information 431 that indicates work scheduled in the field 500, the sharing device 300 estimates the quantity of agricultural materials that the user will possess after the work indicated in the work plan information 431 is completed. For example, based on the work plan information 431, the sharing device 300 estimates the quantity of agricultural materials that are planned to be used in the work indicated in the work plan information 431. By subtracting the quantity of agricultural materials that are planned to be used from the quantity of agricultural materials that the user possesses, a surplus quantity 443 that indicates the quantity of agricultural materials that the user will possess after the work is completed is estimated.

[0024] For example, the sharing device 300 notifies a user (e.g., the first user) of the first surplus quantity 443-1, which is the quantity of agricultural materials (e.g., "fertilizer A") that the user holds after work. When the first user has a surplus quantity of agricultural materials, the first user may decide to provide the agricultural materials to other users in order to make effective use of the agricultural materials. The first user who has decided to provide the agricultural materials inputs the names and quantities of the agricultural materials to be provided into the first display terminal 200-1. The names and quantities of the agricultural materials input into the first display terminal 200-1 are transmitted to the sharing device 300.

[0025] On the other hand, as shown in Fig. 4, there are cases where the second surplus quantity 443-2, which is the quantity of agricultural materials, for example, "fertilizer A," that a user, for example, a second user, possesses after work, is smaller than a threshold value, for example, zero. In this case, the user checks the estimated second surplus quantity 443-2 and attempts to secure the agricultural materials that are in short supply.

[0026] For example, a second user who is short of agricultural materials may search for users who are willing to provide agricultural materials in order to have other users provide the agricultural materials. In response to the second user's search for other users who are willing to provide agricultural materials, the sharing device 300 notifies the second user of provider information representing users who are willing to provide agricultural materials. Furthermore, the sharing device 300 may provide, for example, an opportunity for the second user who is short of agricultural materials to negotiate with a first user who has a surplus of agricultural materials. For example, the sharing device 300 may provide a chat room in which the second user who is short of agricultural materials can negotiate with a first user who has a surplus of agricultural materials.

[0027] In this way, the sharing system 1000 supports the sharing of agricultural materials.

[0028] 1 publishes on a website event information indicating the occurrence of an event that affects agricultural crops, such as pest information indicating the name of the pest that has occurred and the region where the pest has occurred. For example, the information distribution device 30 is a server of a public institution, such as an agricultural cooperative.

[0029] Based on the event information, the sharing device 300 determines whether the event will have an impact on the crops being cultivated by the user in the field 500. If the event will have an impact on the crops being cultivated by the user, the sharing device 300 estimates the quantity of agricultural materials to be used to reduce the impact on the crops. The sharing device 300 estimates the quantity of agricultural materials that the user will possess after responding to the event by subtracting the estimated quantity of agricultural materials from the quantity of agricultural materials possessed by the user. The sharing device 300 notifies the user of the surplus quantity 443, which is the quantity of agricultural materials that the user will possess after responding to the event. The sharing system 1000 then supports negotiations between users to transfer the agricultural materials.

[0030] In this way, the sharing system 1000 supports the sharing of agricultural materials even when an event occurs that affects agricultural crops.

[0031] (Sharing system configuration) The configuration of a work device 100 included in the sharing system 1000 shown in Fig. 1 will be described. The work device 100 may include a device that tows a work machine, such as a tractor, or may include a device formed integrally with the work machine, such as a fertilizer spreader or pesticide spreader. The work device 100 may also include a drone formed integrally with a work machine that sprays pesticides.

[0032] 5, the working device 100 includes an input / output device 110, a sensor 112, a positioning device 114, a computing device 120, a communication device 130, and a storage device 140. Information for controlling the working device 100 is input to the input / output device 110. The input / output device 110 also outputs information indicating the status of the working device 100, such as the remaining amount of loaded agricultural materials, the speed of the working device 100, and the engine RPM. The input / output device 110 also includes various input and output devices, and may include, for example, a steering wheel, buttons, lamps, levers, a display, a touch panel, and the like.

[0033] The sensor 112 acquires status information that indicates the status of the working device 100 at each time. For example, the sensor 112 acquires the speed, traveling direction, steering angle, etc. of the working device 100 at each time. The sensor 112 may also measure the mass of a container loaded with agricultural materials. The sensor 112 may also acquire information that indicates the amount of agricultural materials that the working device 100 spreads per unit time in the field 500. For example, when the working device 100 is a tractor that pulls a working machine (e.g., a fertilizer spreader), the sensor 112 may acquire information such as the PTO (power take-off) rotation speed when transmitting power to the working machine, and the hitch height and lift arm angle that indicate the attitude of the working machine. The sensor 112 acquires status information of the working device 100 at predetermined intervals (e.g., every 10 seconds) and outputs the acquired status information to the computing device 120. The sensor 112 may include any device that can measure the status of the working device 100.

[0034] The positioning device 114 acquires position information that indicates the position of the operating apparatus 100 at each time. For example, the positioning device 114 measures the position of the operating apparatus 100 at predetermined intervals (for example, every 10 seconds) and outputs position information that indicates the measured position to the computing device 120. For example, the positioning device 114 may include a GNSS (Global Navigation Satellite System) receiver, a quantum compass, etc. The position information may include information that indicates the time of measurement.

[0035] The communication device 130 is communicatively connected to the network 20 and communicates with each device via the network 20. The communication device 130, for example, transfers a signal acquired from the sharing device 300 to the arithmetic device 120. The communication device 130 also transfers a signal generated by the arithmetic device 120 to the sharing device 300. The communication device 130 may acquire information from another device without going through the network 20. For example, the communication device 130 may acquire information from another device via any storage medium, such as a memory card or a Universal Serial Bus (USB) memory. The communication device 130 may also acquire information from another device directly connected via a USB or the like. The communication device 130 includes various interfaces, such as a transceiver used for wireless communication, such as a wireless local area network (LAN) or a cellular network, a network interface card (NIC), a USB, and a communication terminal.

[0036] The storage device 140 stores various data, such as an information output program 400, for outputting operation information of the working device 100 to the sharing device 300. The storage device 140 is used as a non-transitory tangible storage medium that stores the information output program 400. The information output program 400 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.

[0037] The arithmetic device 120 reads and executes the information output program 400 from the storage device 140, and performs various data processing to output operation information of the maintenance device 100 to the sharing device 300. For example, the arithmetic device 120 may include an ECU (Electric Control Unit), a central processing unit (CPU), etc.

[0038] 6, the arithmetic device 120 reads and executes the information output program 400, thereby realizing the information output unit 150 in cooperation with the storage device 140. The information output unit 150 outputs operation information including status information acquired by the sensor 112 and location information acquired by the positioning device 114 to the sharing device 300.

[0039] Next, the configuration of the display terminal 200 will be described. As shown in Fig. 7, the display terminal 200 includes an input / output device 210, an arithmetic device 220, a communication device 230, and a storage device 240. The display terminal 200 includes, for example, a computer, a tablet, a mobile terminal, etc. Information used by the arithmetic device 220 to execute processing is input to the input / output device 210. The input / output device 210 also outputs the results of processing executed by the arithmetic device 220. The input / output device 210 includes various input devices and output devices, such as a keyboard, a mouse, a microphone, a display, a speaker, and a touch panel.

[0040] The communication device 230 is communicatively connected to the network 20 and communicates with each device via the network 20. For example, the communication device 230 transfers a signal acquired from the sharing device 300 to the arithmetic device 220. The communication device 230 also transfers a signal generated by the arithmetic device 220 to the sharing device 300. The communication device 230 may acquire information from another device without going through the network 20. For example, the communication device 230 may acquire information from another device via any storage medium, such as a memory card or a Universal Serial Bus (USB) memory. The communication device 230 may also acquire information from another device directly connected via a USB or the like. The communication device 230 includes various interfaces, such as a transceiver used for wireless communication, such as a wireless local area network (LAN) or a cellular network, a network interface card (NIC), a USB, and a communication terminal.

[0041] The storage device 240 stores various data for displaying information indicating the quantity of agricultural materials of a user, for example, a display program 410. The storage device 240 is used as a non-transitory tangible storage medium for storing the display program 410. The display program 410 may be provided as a computer program product recorded on a computer-readable storage medium 2, or may be provided as a computer program product downloadable from a server.

[0042] The arithmetic unit 220 reads and executes the display program 410 from the storage device 240 to perform various data processing to display information indicating the quantity of agricultural materials of the user. For example, the arithmetic unit 220 includes a central processing unit (CPU) and the like.

[0043] The arithmetic device 220 reads and executes the display program 410, thereby realizing the display unit 250 in cooperation with the storage device 240 and the input / output device 210, as shown in Fig. 6. The display unit 250 displays information indicating the quantity of agricultural materials owned by the user on the input / output device 210.

[0044] Next, the configuration of the sharing device 300 will be described. As shown in FIG. 8 , the sharing device 300 includes an input / output device 310, a computing device 320, a communication device 330, and a storage device 340. The sharing device 300 is a computer including, for example, a cloud server. Information used by the computing device 320 to execute processing is input to the input / output device 310. The input / output device 310 also outputs the results of processing executed by the computing device 320. The input / output device 310 includes various input devices and output devices, such as a keyboard, a mouse, a microphone, a display, a speaker, and a touch panel. The input / output device 310 may be omitted.

[0045] The communication device 330 is communicatively connected to the network 20 and communicates with each device via the network 20. The communication device 330, for example, transfers operation information acquired from the work device 100 to the calculation device 320. The communication device 330 also transfers information indicating the quantity of the user's agricultural materials from the calculation device 320 to the display terminal 200. The communication device 330 includes various interfaces, for example, a network interface card (NIC) and a universal serial bus (USB).

[0046] The storage device 340 stores various data for estimating the quantity of agricultural materials owned by the user, such as field data 420, work plan data 430, agricultural material data 440, event response data 450, provider data 460, and a sharing program 470. The storage device 340 is used as a non-transitory tangible storage medium for storing the sharing program 470. The sharing program 470 may be provided as a computer program product recorded on a computer-readable storage medium 3, or may be provided as a computer program product downloadable from a server.

[0047] The field data 420 stores field information about one or more fields 500 owned by users. For example, as shown in FIG. 9, the field data 420 stores field information for one or more fields 500, which associates the owning user, the area of ​​the field 500, the area of ​​the field 500, and the crop being cultivated therein. The example shown in FIG. 9 indicates that "Field A" is owned by a "first user," has an area of ​​"Area A," has an area of ​​"X1"a, and "Crop A" is cultivated in "Field A." This example also indicates that "Field B" is owned by a "second user," has an area of ​​"Area B," has an area of ​​"X2"a, and "Crop B" is cultivated in "Field B." Furthermore, this example shows that "Field C" is owned by a "second user," has an area of ​​"Area C," has an area of ​​"X3"a, and "Crop C" is cultivated in "Field C." Here, the area of ​​the field 500 may be represented by any method. For example, the area of ​​the field 500 may be represented by a polygon, and by coordinates representing the vertices of the polygon, such as latitude and longitude.

[0048] Here, the field information is set in advance by any method. For example, the field information may be input by a user to the display terminal 200 and transmitted to the sharing device 300. Alternatively, the field information may be determined from operation information of the working device 100, such as location information.

[0049] The work plan data 430 shown in FIG. 8 stores work plan information 431 that indicates work that each user plans to perform in one or more fields 500. For example, as shown in FIG. 10, the work plan data 430 stores work plan information 431 that associates, for each user, the field 500 in which the work will be performed, the type of work, the agricultural materials to be used, the amount of agricultural materials used, and the work period. The type of work indicates the type of work to be performed in the corresponding field 500, such as base fertilization, top dressing, or pesticide spraying. The amount used indicates the quantity of agricultural materials to be used in the work in the corresponding field 500, such as the mass of agricultural materials used per unit area (10a). The work period indicates the period during which the work will be performed in the corresponding field 500. The work plan information 431 is registered, for example, by the user using the display terminal 200.

[0050] The example shown in FIG. 10 indicates that the "first user" performs "top dressing" on "field A" by spreading "Y1" kg of "fertilizer A" per 10 a during the period from "July 15th to July 25th." This example also indicates that the "first user" performs "pesticide spraying" on "field A" by spreading "Y2" kg of "pesticide A" per 10 a during the period from "August 15th to August 20th." This example also indicates that the "second user" performs "top dressing" on "field B" by spreading "Y3" kg of "fertilizer A" per 10 a during the period from "July 10th to July 20th." This example also indicates that the "second user" performs "top dressing" on "field C" by spreading "Y4" kg of "fertilizer A" per 10 a during the period from "July 22nd to July 31st."

[0051] The agricultural material data 440 shown in Fig. 8 stores agricultural material information indicating the quantity of agricultural materials owned by each user. For example, as shown in Fig. 3, agricultural material information 441 indicates the quantity of agricultural materials owned by the user immediately after the work period indicated in the work plan information 431. For example, the agricultural material information 441 may indicate the quantity of agricultural materials at predetermined intervals from the present until the end of the work period, for example, for each day. The agricultural material information 441 is generated, for example, by the sharing device 300.

[0052] In the example shown in FIG. 3, the first held quantity line 442-1 represents the quantity of "Fertilizer A" that the first user holds at each time period. For example, the first held quantity line 442-1 represents that the first user obtained "Fertilizer A" on material purchase date 610. The first held quantity line 442-1 also represents that "Fertilizer A" will be used as a "top dressing" in "Field A" from July 15th to July 25th. The quantity of "Fertilizer A" to be used is estimated by the sharing device 300.

[0053] In the example shown in FIG. 4, the second stock quantity line 442-2 represents the quantity of "Fertilizer A" that the second user stocks at each time period, for example, on each day. For example, the second stock quantity line 442-2 represents that the second user obtained "Fertilizer A" on material purchase date 610. The second stock quantity line 442-2 also represents that "Fertilizer A" is used through "top dressing" in "Field A" from July 10 to July 20, and "top dressing" in "Field B" from July 22 to July 31. The second stock quantity line 442-2 also represents that there will be a shortage of "Fertilizer A" on material shortage date 620.

[0054] The event response data 450 shown in FIG. 8 stores information representing, for an event affecting a crop, the crop affected when the event occurs and the name of the agricultural material used to mitigate the impact of the event, in association with the event. For example, an event affecting a crop includes an outbreak of pests, such as the brown planthopper. For example, the event response data 450 represents rice as the crop affected when the brown planthopper occurs, and represents agricultural materials, such as pesticides capable of combating the brown planthopper, such as Exceed Powder DL and Exceed Flowable. The event response data 450 may also store information representing the quantity of agricultural materials used to mitigate the impact of the event, for example, the quantity per unit area. For example, the event response data 450 may store information representing the quantity of Exceed Powder DL to be sprayed per unit area to mitigate the impact of the brown planthopper outbreak on rice. The quantity of agricultural materials used to mitigate the impact of the event is registered in advance according to the specifications of the agricultural materials, such as the pesticide. The quantity of agricultural materials to be used to reduce the impact of an event may be registered in advance by the user.

[0055] The provider data 460 stores provider information representing users who wish to provide agricultural materials. The provider information represents, for example, a user who wishes to provide agricultural materials, in association with the name and quantity of the agricultural materials that the user wishes to provide.

[0056] The arithmetic device 320 reads and executes the sharing program 470 from the storage device 340 and performs various data processing to estimate the quantity of agricultural materials held by the user. For example, the arithmetic device 320 includes a central processing unit (CPU) and the like.

[0057] By reading and executing the sharing program 470, the arithmetic device 320, in cooperation with the storage device 340, implements a consumption determination unit 350, a use estimation unit 360, a surplus estimation unit 370, an output unit 380, and a negotiation support unit 390, as shown in FIG. 6. The consumption determination unit 350 determines a consumption quantity, which represents the quantity of agricultural materials used by the user in work in the field 500, based on operation information of the work device 100. The use estimation unit 360 estimates a planned use quantity, which represents the quantity of agricultural materials planned to be used, based on work plan information 431 set by the user. The use estimation unit 360 also estimates an event use quantity, which represents the quantity of agricultural materials planned to be used in response to an event, based on event information acquired from the information distribution device 30. The surplus estimation unit 370 estimates a surplus quantity 443, which represents the quantity of agricultural materials the user does not plan to use, based on the acquisition quantity, which represents the quantity of agricultural materials acquired by the user, the consumption quantity, and the planned use quantity. The output unit 380 outputs surplus information indicating the surplus quantity 443 to the display terminal 200. The negotiation support unit 390 supports negotiations between users who wish to provide agricultural materials and users who wish to purchase agricultural materials.

[0058] (Action when obtaining agricultural materials) The operation of the sharing system 1000 will be described. First, the operation of the sharing system 1000 when a user acquires agricultural materials will be described. For example, when a user purchases agricultural materials, the user inputs an operation to register the quantity of the purchased agricultural materials into the input / output device 210 of the display terminal 200. The arithmetic device 220 of the display terminal 200 reads and executes a display program 410 in response to an operation by the user. When the display program 410 is executed, the arithmetic device 220 starts the processing shown in FIG. 11, which is part of the sharing method.

[0059] In step S110, the display unit 250 realized by the calculation device 220 receives information about the acquired agricultural materials, for example, information indicating the names and quantities of the agricultural materials. For example, the display unit 250 displays an image for inputting the names and quantities of the acquired agricultural materials. The user uses the input / output device 210 to input the names and quantities of the agricultural materials in the displayed image. When the names and quantities of the agricultural materials are input, the display unit 250 determines that the agricultural material information has been received. Upon acquiring the agricultural material information, the display unit 250 outputs the agricultural material information, for example, information indicating the names and quantities of the agricultural materials input by the user, to the sharing device 300. Note that the display unit 250 may include, for example, a web browser that displays a website distributed by the sharing device 300.

[0060] In step S115, the surplus estimation unit 370 of the sharing device 300 updates the agricultural material data 440 so that the quantity of agricultural materials with the input name among those held by the corresponding user is increased by the input quantity. For example, the surplus estimation unit 370 identifies the name and quantity of the input agricultural material from the acquired agricultural material information. The surplus estimation unit 370 modifies the material purchase date 610 purchased by the user so that the quantity of the agricultural material with the input name is increased by the input quantity, as shown in the held quantity line 442 in FIG. 3. Here, the material purchase date 610 may be input by the user or may represent the date of input. Furthermore, information identifying the corresponding user may be input by the user or may be determined by the display terminal 200 on which the information is output.

[0061] In this way, the sharing system 1000 updates the agricultural material data 440 according to the name and quantity of the agricultural material acquired by the user. When a user is registered, the quantity of the agricultural material owned by the user is stored as zero in the agricultural material data 440.

[0062] (Operation when work plan information is registered) Next, the operation of the sharing system 1000 when work plan information 431 indicating work to be performed in the field 500 is registered will be described. For example, a user inputs an operation to register the work plan information 431 into the input / output device 210 of the display terminal 200. The arithmetic device 220 of the display terminal 200 reads and executes a display program 410 in response to an operation by the user. When the display program 410 is executed, the arithmetic device 220 starts the processing shown in Figures 12A and 12B, which is part of the sharing method.

[0063] In step S210, the display unit 250 realized by the arithmetic device 220 accepts work plan information 431. For example, the display unit 250 displays an image for inputting the work plan information 431 in response to an operation by the user. The user inputs information related to the work to be performed in the field 500 in the displayed image. For example, the user inputs work plan information 431 indicating the field 500 where the work will be performed, the type of work to be performed, the names of agricultural materials to be used for the work, the amounts of agricultural materials used, and the work period for the work to be performed, into the input / output device 210. For example, as shown in FIG. 10 , a user (e.g., a first user) inputs first work plan information 431-1 related to the work of performing "top dressing" in "field A." When the work plan information 431 is input, the display unit 250 determines that the work plan information 431 has been accepted. When the display unit 250 acquires the work plan information 431, it outputs first work plan information 431-1 to the sharing device 300.

[0064] In step S215, the usage estimation unit 360 of the sharing device 300 estimates a planned usage quantity, which indicates the planned quantity of agricultural materials to be used in the planned work, based on the acquired work plan information 431. For example, the usage estimation unit 360 estimates the planned usage quantity based on the usage amount indicated in the work plan information 431, such as the usage amount per unit area, and the area of ​​the field 500, such as "Field A," indicated in the work plan information 431. For example, the usage estimation unit 360 estimates the planned usage quantity as the value obtained by multiplying the usage amount per unit area by the area of ​​the field 500.

[0065] 10, the usage estimation unit 360 estimates, based on the first work plan information 431-1, the planned usage quantity of agricultural materials (e.g., "Fertilizer A") to be used in the work represented in the first work plan information 431-1. For example, the usage estimation unit 360 acquires the area of ​​"Field A" where the work represented in the first work plan information 431-1 will be performed from the field data 420 shown in FIG. 9. The usage estimation unit 360 estimates the planned usage quantity by multiplying the acquired area of ​​"Field A" by the usage amount represented in the first work plan information 431-1.

[0066] The acquired work plan information 431 is stored in the work plan data 430 by the usage estimation unit 360.

[0067] 12A, the surplus estimation unit 370 estimates a surplus quantity 443 representing the quantity of agricultural materials not planned to be used, based on the quantity of agricultural materials held by the user and the planned usage quantity. For example, the surplus estimation unit 370 estimates a surplus quantity 443 representing the quantity of agricultural materials immediately after the work period represented in the work plan information 431, based on the quantity of agricultural materials held by the user and the planned usage quantity. For example, the use estimation unit 360 estimates a value obtained by subtracting the planned usage quantity from the quantity of agricultural materials held by the user immediately before the work, as the surplus quantity 443 immediately after the work period represented in the work plan information 431. The estimated surplus quantity 443 is stored in the agricultural material data 440 by the surplus estimation unit 370.

[0068] 3 , because no agricultural material (e.g., "Fertilizer A") has been consumed from the material purchase date 610 to the present time, the surplus estimation unit 370 determines the quantity of the agricultural material obtained on the material purchase date 610 as the quantity of the agricultural material currently held by the user. The surplus estimation unit 370 determines the quantity of the agricultural material currently held by the user as the quantity of the agricultural material held by the user immediately before the work period represented in the first work plan information 431-1 for the work in which the agricultural material will be used for the first time from the present time, for example, on July 15th. The surplus estimation unit 370 estimates the quantity of the agricultural material held by the user immediately after the work period by subtracting the planned usage quantity to be used in the work represented in the first work plan information 431-1 from the quantity of the agricultural material held by the user immediately before the work period. When the work plan data 430 does not include work plan information 431 that subsequently uses agricultural materials (e.g., "fertilizer A"), the surplus estimation unit 370 estimates the quantity of agricultural materials held by the user immediately after the work period represented in the first work plan information 431-1 as the first surplus quantity 443-1.

[0069] The margin estimation unit 370 may estimate the margin quantity 443 for each day, e.g., every time a predetermined period of the work period indicated in the work plan information 431 elapses, e.g., every day elapses. For example, the margin estimation unit 370 may estimate the margin quantity 443 for each predetermined period elapses based on the number of predetermined periods included in the work period, e.g., the number of days included in the work period when estimating the margin quantity 443 for each day elapses. For example, the margin estimation unit 370 estimates the quantity of agricultural materials to be used in each predetermined period (e.g., one day) by dividing the planned usage quantity by the number of predetermined periods (e.g., the number of days) included in the work period. In this case, the margin estimation unit 370 estimates the margin quantity 443 after a predetermined period has elapsed since the start of the work period by subtracting the quantity of agricultural materials to be used in each predetermined period from the quantity of agricultural materials owned by the user at the start of the work period. The margin quantity 443 after a further predetermined period has elapsed is estimated by further subtracting the quantity of agricultural materials to be used in each predetermined period. In this way, the margin estimation unit 370 may estimate the margin quantity 443 at each predetermined time interval within the work period, as shown in FIG.

[0070] In step S225 shown in FIG. 12A, the output unit 380 outputs surplus information indicating the estimated surplus quantity 443 to the display terminal 200. For example, the output unit 380 outputs the surplus information to the display terminal 200 to which the work plan information 431 has been input, such as the first display terminal 200-1 of the first user. The surplus information indicates, for example, the quantity of agricultural materials held by the user from the present to immediately after the work period indicated in the work plan information 431. Furthermore, as shown in FIG. 3, the surplus information may indicate the quantity of agricultural materials held by the user at each predetermined time interval from the present to the end of the work period.

[0071] 12A, the display unit 250 of the display terminal 200 displays surplus information indicating surplus quantity 443. As shown in FIG. 3, the display unit 250 may display an image showing a stock quantity line 442 indicating the quantity of agricultural materials held by the user at each predetermined time period from the present to the end of the work period.

[0072] In step S235 shown in FIG. 12A, the display unit 250 determines whether a request to provide agricultural materials has been received by inputting an operation to the input / output device 210 by the user. For example, as shown in FIG. 3, when the user has a surplus quantity of agricultural materials, the user inputs an operation to the input / output device 210 indicating a request to provide the corresponding agricultural materials to another user. For example, in the image displayed by the display unit 250, the user selects an area indicating the surplus quantity 443 of the agricultural materials desired to be provided, and inputs the quantity of the agricultural materials desired to be provided. The user may also input information indicating the name and quantity of the agricultural materials desired to be provided to the input / output device 210. When the user inputs the operation to the input / output device 210, the display unit 250 determines that provision request information indicating a request to provide the agricultural materials to another user has been received. If the display unit 250 determines that provision request information has not been received (NO), it executes the process of step S250 shown in FIG. 12B. If it is determined that the information desired to be provided has been accepted (YES), the display unit 250 executes the process of step S240 shown in FIG. 12A.

[0073] In step S240, the display unit 250 outputs the acquired supply request information to the sharing device 300. The supply request information indicates, for example, the name of the user who wishes to supply the agricultural materials, and the name and quantity of the agricultural materials that the user wishes to supply.

[0074] In step S245, the negotiation support unit 390 of the sharing device 300 registers the supply request information in the provider data 460. For example, when the negotiation support unit 390 acquires the supply request information, the negotiation support unit 390 stores information in the provider data 460 that associates the name of the user who wishes to supply agricultural materials with the name and quantity of the agricultural materials they wish to supply. This registers in the provider data 460 that a user, for example, a first user, wishes to supply agricultural materials. Once the supply request information has been registered in the provider data 460, the display unit 250 returns to the processing of step S235 and repeats the processing.

[0075] If the request for the provision of agricultural materials is not accepted in step S235, in step S250 shown in FIG. 12B, the display unit 250 determines whether a request for the acquisition of agricultural materials has been accepted by a user's input of an operation to the input / output device 210. For example, as shown in FIG. 4, when the user has a shortage of agricultural materials, the user inputs an operation to the input / output device 210 indicating a request to acquire the corresponding agricultural materials from another user. For example, the user selects an area indicating the surplus quantity 443 of the agricultural materials the user wishes to acquire in the image displayed by the display unit 250. The user may also input information indicating the name of the agricultural materials the user wishes to acquire into the input / output device 210. When the user inputs the operation to the input / output device 210, the display unit 250 determines that acquisition request information indicating a request to acquire agricultural materials from another user has been accepted. If the display unit 250 determines that acquisition request information has not been accepted (NO), the processing ends. If it is determined that the desired information has been received (YES), the display unit 250 executes the process of step S255.

[0076] In step S255, the display unit 250 outputs the acquired acquisition desire information to the sharing device 300. The acquisition desire information indicates, for example, the name of the user who desires to acquire the agricultural material and the name of the agricultural material that the user desires to acquire.

[0077] In step S260, upon acquiring the acquisition desire information, the negotiation support unit 390 of the sharing device 300 outputs provider information representing users who wish to provide the agricultural materials represented in the acquisition desire information to the display terminal 200. For example, the negotiation support unit 390 acquires, from the provider data 460, the names of one or more users who wish to provide the agricultural materials represented in the acquisition desire information. The negotiation support unit 390 outputs provider information representing a list of users who wish to provide the agricultural materials to the display terminal 200. The provider information may represent the quantity desired by the user wishing to provide the agricultural materials, in association with the name of the user.

[0078] In step S265, the display unit 250 of the display terminal 200 displays the provider information acquired from the sharing device 300. For example, the display unit 250 displays an image showing a list of the names of users who wish to donate agricultural materials. The display unit 250 may also display the quantity of agricultural materials that each user wishes to donate in association with the user's name. The display unit 250 may also display an image showing a list of user names sorted by information included in the provider information, for example, the quantity of agricultural materials. The display unit 250 may also display an image showing the list of user names sorted in order of proximity to the address of the user who wishes to acquire the agricultural materials. In this case, the user's address is, for example, stored in the storage device 340 of the sharing device 300 and transmitted from the sharing device 300 to the display terminal 200.

[0079] In step S270, the display unit 250 determines whether a request for negotiation with a user who wishes to provide agricultural materials has been received by inputting an operation to the input / output device 210 by the user. For example, the user inputs an operation to the input / output device 210 to negotiate with a user from whom the user wishes to request the provision of agricultural materials from among the displayed user names. For example, the user selects an area representing the user from whom the user wishes to request the provision of agricultural materials from an image displaying a list of user names. The user may also input the name of the user from whom the user wishes to request the provision of agricultural materials. When the user inputs the operation to the input / output device 210, the display unit 250 determines that negotiation request information representing a request for negotiation with a user from whom the user wishes to request the provision of agricultural materials has been received. If the display unit 250 determines that negotiation request information has not been received (NO), the process ends. If the display unit 250 determines that negotiation request information has been received (YES), the display unit 250 executes the process of step S275.

[0080] In step S275, the display unit 250 outputs the acquired negotiation request information to the sharing device 300. The negotiation request information may indicate, for example, the name of the user requesting negotiation and the name of the agricultural material requested to be provided.

[0081] In step S280, upon acquiring the negotiation request information, the negotiation support unit 390 of the sharing device 300 outputs negotiation information representing information required for conducting negotiation to the display terminal 200 of the user who requested the negotiation and the display terminal 200 to which the negotiation is requested. The negotiation information may include, for example, information for accessing a chat room set up for conducting the negotiation. For example, when the chat room is formed by a website, the negotiation information may include information representing a URL (Uniform Resource Locator) for accessing the chat room. Furthermore, when a password is set for the chat room, the negotiation information may include information representing the password. In this case, the negotiation information may be output by email.

[0082] The display unit 250 of the display terminal 200 displays the negotiation information. Users use the negotiation information to negotiate for the exchange of agricultural materials. For example, a user who wishes to provide and a user who wishes to acquire agricultural materials use their respective display terminals 200 to access a chat room and negotiate regarding the exchange of agricultural materials. When both users agree on the conditions regarding the exchange of agricultural materials, they input agreement information representing the agreed-upon conditions into the display terminal 200. The agreement information represents, for example, the names and quantities of the agricultural materials to be exchanged. The agreement information may also include information representing the amount to be received in exchange for the delivery of the agricultural materials. The agreement information may also include information representing the name of the user who provides the agricultural materials and the name of the user who acquires the agricultural materials.

[0083] In step S285, the display unit 250 of the display terminal 200 determines whether it has received agreement information representing the conditions agreed upon by the users. For example, when the users input agreement information representing the conditions agreed upon to the input / output device 210 of the display terminal 200, the display unit 250 determines that it has received the agreement information. The processing of step S285 is repeated until the display unit 250 determines that it has received the agreement information, for example, until both users agree on the conditions regarding the transfer of agricultural materials. When the display unit 250 determines that it has received the agreement information, it outputs the acquired agreement information to the sharing device 300, and then the processing proceeds to step S290.

[0084] In step S290, upon acquiring the agreement information from the display terminals 200 of the user wishing to provide and the user wishing to acquire, the negotiation support unit 390 of the sharing device 300 updates the agricultural material data 440 based on the agreement information. For example, the negotiation support unit 390 updates the quantity of agricultural materials owned by the user providing the agricultural materials represented in the agreement information by subtracting the quantity of agricultural materials represented in the agreement information from the quantity of agricultural materials owned by the user providing the agricultural materials represented in the agreement information. Furthermore, the negotiation support unit 390 updates the quantity of agricultural materials owned by the user by adding the quantity of agricultural materials represented in the agreement information to the quantity of agricultural materials owned by the user acquiring the agricultural materials represented in the agreement information in the agricultural material data 440.

[0085] In this way, the sharing system 1000 estimates the surplus quantity 443 of agricultural materials based on the input work plan information 431, and supports the transfer of agricultural materials.

[0086] Note that the sharing system 1000 operates in the same manner when multiple pieces of work plan information 431 are input. For example, multiple pieces of work plan information 431 using the same agricultural materials may be input, as in the case of the second user shown in FIG. 10. In this case, in step S215, the usage estimation unit 360 of the sharing device 300 estimates, as the planned usage quantity, the quantity of agricultural materials planned to be used in each task represented in the work plan information 431. For example, in the example shown in FIG. 10, the usage estimation unit 360 estimates the planned usage quantity for tasks represented in multiple pieces of work plan information 431, such as second work plan information 431-2 and third work plan information 431-3.

[0087] Furthermore, in this case, in step S220, the surplus estimation unit 370 of the sharing device 300 may estimate the surplus quantity 443 immediately after each work period represented in the work plan information 431. For example, in the example shown in FIG. 4 , because agricultural materials (e.g., "fertilizer A") have not been consumed from material purchase date 610 to the present time, the surplus estimation unit 370 determines the quantity of agricultural materials obtained on material purchase date 610 as the quantity of agricultural materials currently held by the user. The surplus estimation unit 370 determines the quantity of agricultural materials currently held by the user as the quantity of agricultural materials held by the user immediately before the work period represented in second work plan information 431-2 for work in which the agricultural materials will be used for the first time from the present time, for example, on July 10th. The margin estimation unit 370 estimates the quantity of agricultural materials the user will possess immediately after the work period by subtracting the planned usage quantity to be used in the work represented in the second work plan information 431-2 from the quantity of agricultural materials the user possesses immediately before the work period. The work plan data 430 includes third work plan information 431-3 that represents work that will subsequently use "Fertilizer A." Therefore, the margin estimation unit 370 estimates the quantity of agricultural materials the user will possess immediately after the work period represented in the third work plan information 431-3 based on the planned usage quantity to be used in the third work plan information 431-3. When the work plan data 430 does not include work plan information 431 that will subsequently use agricultural materials (e.g., "Fertilizer A"), the margin estimation unit 370 estimates the quantity of agricultural materials the user will possess immediately after the work period represented in the third work plan information 431-3 as the second margin quantity 443-2.

[0088] (Operation when work is performed using work equipment) Next, the operation of the sharing system 1000 when the task device 100 performs work in the field 500 will be described. For example, when working in the field 500, a user, such as an operator, starts the drive device of the task device 100, such as an engine or electric motor, and begins working in the field 500 using the task device 100. When the task device 100 is started, the arithmetic device 120 of the task device 100 reads and executes the information output program 400 from the storage device 140. When the information output program 400 is executed, the arithmetic device 120 starts the processing shown in FIG. 13, which is part of the sharing method.

[0089] In step S310, information output unit 150, which is realized by calculation device 120, acquires operation information of operating apparatus 100 at each time and outputs the acquired operation information to sharing device 300. Information output unit 150 may sequentially output the acquired operation information, or, when the drive device is stopped, may output operation information acquired from the time the drive device is started to the time it is stopped. The operation information includes position information that indicates the position of operating apparatus 100 at each time, and status information that indicates the status of operating apparatus 100 at each time. For example, as shown in FIG. 2 , the operation information indicates a measured position 520 measured at each time and the status of operating apparatus 100 at that measured position 520.

[0090] 13 , the consumption determination unit 350 of the sharing device 300 identifies work plan information 431 that represents the work being performed by the work device 100 based on the operation information of the work device 100. For example, the consumption determination unit 350 identifies the work plan information 431 that represents the work being performed by the work device 100 based on the location information included in the operation information. For example, the consumption determination unit 350 identifies the field 500 where the work is being performed and the time the work was performed based on the location information, and identifies the work plan information 431 that corresponds to the identified field 500 and the time of the work as the work plan information 431 that represents the work to be performed by the work device 100. For example, the consumption determination unit 350 extracts from the field data 420 the name of the field 500 that includes the location indicated in the location information of the work device 100. The consumption determination unit 350 identifies work plan information 431 that is to be performed in the field 500 with the extracted name and whose work period includes the time indicated in the location information as work plan information 431 that represents the work to be performed by the work device 100.

[0091] In step S320, the consumption determination unit 350 determines a consumption quantity, which represents the quantity of agricultural materials used by the task device 100 in the field 500, based on the operation information of the task device 100. The consumption determination unit 350 determines the consumption quantity using any method depending on the information represented by the operation information. For example, when the operation information represents the mass of a container loaded with agricultural materials, the consumption determination unit 350 calculates the mass that decreased from the start to the end of the task and determines the calculated mass as the consumption quantity. When the operation information represents the quantity of agricultural materials to be sprayed per unit time, the consumption determination unit 350 calculates the quantity of agricultural materials consumed at each positioning location 520 shown in FIG. 2 and determines the sum of the calculated quantities of agricultural materials as the consumption quantity. The quantity of agricultural materials consumed at each positioning location 520 is calculated, for example, by multiplying the interval between the times when the positioning locations 520 are measured by the quantity sprayed per unit time. Furthermore, when the operation information represents the rotation speed of a device for spraying agricultural materials, such as a fertilizer drive motor, the consumption determination unit 350 may determine the quantity of agricultural materials consumed at each positioning location 520 from the rotation speed of the device. When the operation information represents the measurement value of an impact sensor that collides with the discharged agricultural materials, the consumption determination unit 350 may determine the quantity of agricultural materials consumed at each positioning location 520 from the measurement. Furthermore, the consumption determination unit 350 may change the method for determining the consumption quantity depending on the work plan information 431 that represents the work of the work device 100. For example, when the work plan information 431 represents the work of "base fertilizer" and when the work plan information 431 represents the work of "pesticide spraying," the consumption determination unit 350 may change the method for calculating the consumption quantity, such as the calculation formula or the information from the operation information used for calculation.

[0092] 13, the surplus estimation unit 370 updates the agricultural material data 440 based on the determined consumption quantity. For example, the surplus estimation unit 370 updates the agricultural material data 440 so that the agricultural materials held by the corresponding user are reduced by the determined consumption quantity. Here, the agricultural materials to be reduced by the consumption quantity are determined by the work plan information 431 that represents the work performed by the work device 100. For example, the surplus estimation unit 370 reduces the quantity of agricultural materials represented in the work plan information 431 held by the user by the consumption quantity.

[0093] 13 , the use estimation unit 360 estimates a planned use quantity, which indicates the planned quantity of agricultural materials to be used in the planned work, based on the work plan information 431 stored in the work plan data 430. The use estimation unit 360 estimates a planned use quantity for work plan information 431 stored in the work plan data 430 that indicates work that has not been performed in the field 500.

[0094] For example, the usage estimation unit 360 extracts work plan information 431 whose work period starts after the current time from among the work plan information 431 stored in the work plan data 430, and estimates the planned usage quantity for the extracted work plan information 431. Alternatively, the usage estimation unit 360 may extract work plan information 431 whose work period ends after the current time from among the work plan information 431 stored in the work plan data 430, and estimate the planned usage quantity for the extracted work plan information 431.

[0095] Furthermore, for work plan information 431 in which the current time is included in the work period, the use estimation unit 360 may estimate the planned use quantity to be used in the work represented in the work plan information 431 from the current time onwards, based on the ratio of the work period from the current time onwards to the work period. For example, the planned use quantity may be estimated by multiplying the quantity of agricultural materials planned to be used in the work represented in the work plan information 431 by the ratio of the work period from the current time onwards to the work period. For example, for work plan information 431 in which half the work period has passed, the use estimation unit 360 may estimate, as the planned use quantity, half the quantity of agricultural materials planned to be used in the entire work represented in the work plan information 431.

[0096] The quantity of agricultural materials to be used in the entire work in the work plan information 431 is the same as the process in step S215 shown in FIG. 12A, and therefore a detailed description thereof will be omitted.

[0097] In step S335 shown in FIG. 13 , the surplus estimation unit 370 estimates a surplus quantity 443, which represents the quantity of agricultural materials not planned to be used, based on the quantity of agricultural materials owned by the user and the estimated planned use quantity. The surplus estimation unit 370 extracts the quantity of agricultural materials owned by the user from the agricultural material data 440. Here, the extracted quantity of agricultural materials represents a value reduced by the quantity consumed by the work performed by the work device 100. The surplus estimation unit 370 estimates a value obtained by subtracting the planned use quantity from the extracted quantity of agricultural materials owned by the user as the surplus quantity 443 immediately after the work period represented by the work plan information 431. The estimated surplus quantity 443 is stored in the agricultural material data 440 by the surplus estimation unit 370, similar to the processing of step S220 shown in FIG. 12A . The detailed method for estimating the surplus quantity 443 is similar to the processing of step S220 shown in FIG. 12A , and therefore will not be described in detail here.

[0098] The process after step S335 shown in FIG. 13 is the same as the process after step S225 shown in FIG. 12A, and therefore a detailed description thereof will be omitted.

[0099] In this way, even when work is being performed by work device 100, sharing system 1000 efficiently estimates surplus quantity 443 of agricultural materials and supports the transfer of agricultural materials.

[0100] (Actions to be taken when an event that affects crops occurs) Next, we will explain the operation of the sharing system 1000 when event information indicating the occurrence of an event that affects agricultural crops is distributed from the information distribution device 30. When an event that affects agricultural crops, such as an outbreak of pests, occurs, the information distribution device 30 distributes event information indicating the occurrence of the event. For example, the information distribution device 30 outputs the event information to the sharing device 300. The sharing device 300 may periodically output information requesting event information to the information distribution device 30, and the information distribution device 30 may output the event information to the sharing device 300 in response.

[0101] When the computing device 320 of the sharing device 300 receives the event information, it reads and executes the sharing program 470 from the storage device 340. When the sharing program 470 is executed, the computing device 320 starts the processing shown in Fig. 14, which is part of the sharing method.

[0102] In step S410, the usage estimation unit 360 implemented by the calculation device 320 determines whether any of the fields 500 registered in the field data 420 are affected by the event represented by the event information. For example, the usage estimation unit 360 determines whether any of the fields 500 are affected by the event based on the region where the event represented by the event information occurred and the crops affected by the event. For example, the usage estimation unit 360 determines whether any of the fields 500 represented by the field information stored in the field data 420 are included in the region where the event occurred and are cultivating a crop affected by the event.

[0103] The usage estimation unit 360 executes the process of step S415 when the field 500 represented by the field information stored in the field data 420 includes a field 500 that is included in the area where the event occurred and that cultivates a crop affected by the event (YES). If the field 500 represented by the field information stored in the field data 420 does not include a field 500 that is included in the area where the event occurred and that cultivates a crop affected by the event (NO), this process ends.

[0104] For example, the usage estimation unit 360 determines the crops that will be affected by the event represented in the event information, based on the event correspondence data 450. For example, the usage estimation unit 360 determines the crops that will be affected when the event represented in the event information occurs, from the event correspondence data 450. For example, when the event information represents an "outbreak of brown planthoppers," the usage estimation unit 360 determines, based on the event correspondence data 450, that "rice" is the crop that will be affected by the "outbreak of brown planthoppers."

[0105] The usage estimation unit 360 extracts field information representing a field 500 that cultivates a determined crop, for example, "rice," and is included in the area where the event occurred, from the field information stored in the field data 420 shown in FIG. 9 . Here, the usage estimation unit 360 determines whether the field 500 is included in the area where the event occurred, based on the field data 420. For example, the usage estimation unit 360 determines whether the area of ​​the field 500 represented in the field data 420 is included in the area where the event occurred. For example, the usage estimation unit 360 determines whether the position representing the area of ​​the field 500, for example, latitude and longitude, is included in the area where the event occurred.

[0106] In step S415 shown in FIG. 14 , the usage estimation unit 360 estimates the event usage quantity planned to be used to reduce the impact of the event that has occurred, based on the field data 420 and the event response data 450. For example, the usage estimation unit 360 extracts, from the event response data 450, agricultural materials to be used to reduce the impact of the event represented in the event information and the quantity of agricultural materials to be used per unit area to reduce the impact of the event. The usage estimation unit 360 also extracts, from the field data 420, the area of ​​the field 500 in which the crop affected by the event is cultivated. The usage estimation unit 360 estimates the value obtained by multiplying the extracted area of ​​the field 500 by the quantity of agricultural materials to be used per unit area as the event usage quantity planned to be used to reduce the impact of the event that has occurred.

[0107] 14, the use estimation unit 360 estimates a planned use quantity, which indicates the planned quantity of agricultural materials to be used in the planned work, based on the work plan information 431 stored in the work plan data 430. The processing of step S415 is similar to the processing of step S215 shown in FIG. 12A, and therefore a detailed description thereof will be omitted.

[0108] In step S425 shown in FIG. 14, the surplus estimation unit 370 estimates a surplus quantity 443, which represents the quantity of agricultural materials not scheduled for use, based on the quantity of agricultural materials held by the user, the estimated event use quantity, and the estimated planned use quantity. The surplus estimation unit 370 extracts the quantity of agricultural materials held by the user from the agricultural material data 440. The surplus estimation unit 370 estimates the quantity of agricultural materials held by the user immediately after responding to the event by subtracting the event use quantity from the quantity of agricultural materials held by the user. The surplus estimation unit 370 estimates the surplus quantity 443 when the quantity of agricultural materials held by the user immediately after responding to the event is set to the quantity of agricultural materials held by the user at the current time. The detailed method for estimating the surplus quantity 443 is similar to the processing in step S220 shown in FIG. 12A, and therefore will not be described in detail again. The estimated surplus quantity 443 is stored in the agricultural material data 440 by the surplus estimation unit 370, similar to the processing in step S220 shown in FIG. 12A.

[0109] The process after step S425 shown in FIG. 14 is the same as the process after step S225 shown in FIG. 12A, and therefore a detailed description thereof will be omitted.

[0110] In this way, even when an event occurs that affects agricultural crops, the sharing system 1000 estimates the surplus quantity 443 of agricultural materials and supports the transfer of agricultural materials.

[0111] (Operation when a large purchase of agricultural supplies is detected) An event occurring in a certain region may lead to the purchase of a large amount of agricultural materials in that region, resulting in a decrease in the inventory of agricultural materials held by manufacturers. For example, a pest outbreak in a region far from the field 500 may lead to the purchase of a large amount of agricultural materials sold in the market, making it difficult to purchase the agricultural materials in the region including the field 500. For example, a pest outbreak in the Kyushu region may lead to the purchase of a large amount of agricultural materials, making it difficult to purchase the agricultural materials in the Chugoku and Shikoku regions. As a result, if pests migrate to the Chugoku and Shikoku regions, it may be difficult to take measures against the pests in the fields 500 in the Chugoku and Shikoku regions. For this reason, the sharing system 1000 may notify a user that a large amount of agricultural materials may have been purchased when the total quantity of agricultural materials purchased by other users exceeds a threshold.

[0112] Similar to when obtaining agricultural materials, for example, when a user purchases agricultural materials, the user inputs an operation to register the quantity of the purchased agricultural materials into the input / output device 210 of the display terminal 200. The arithmetic device 220 of the display terminal 200 reads and executes a display program 410 in response to the user's operation. When the display program 410 is executed, the arithmetic device 220 may start the processing shown in FIG. 15, which is part of the sharing method.

[0113] In step S510, the display unit 250 realized by the calculation device 220 receives information about the acquired agricultural materials, for example, information indicating the names and quantities of the agricultural materials. The processing in step S510 is similar to the processing in step S110 shown in FIG. 11, and therefore a detailed explanation will be omitted.

[0114] In step S515 shown in FIG. 15, the surplus estimation unit 370 of the sharing device 300 determines whether the total acquisition quantity, which indicates the quantity of agricultural materials acquired by each user within a predetermined period, is equal to or greater than a threshold. For example, the surplus estimation unit 370 calculates the total quantity of agricultural materials acquired by each user within a predetermined period for each agricultural material name based on the agricultural material information acquired from the display terminal 200. For example, the surplus estimation unit 370 calculates the total quantity of agricultural materials acquired by each user from the current time until a predetermined period (e.g., one month ago) for each agricultural material name. For example, the surplus estimation unit 370 calculates the total quantity of agricultural materials acquired by each user from the current time until a predetermined period (e.g., one month ago) for each agricultural material name. For example, the surplus estimation unit 370 calculates the total quantity of Exceed Powder DL acquired by each user from one month ago to the current time. The surplus estimation unit 370 also calculates the total quantities of other agricultural materials acquired by each user. If there is no agricultural material whose calculated total is equal to or greater than the threshold value (NO), the process ends. If there is agricultural material whose calculated total is equal to or greater than the threshold value (YES), the process proceeds to step S520.

[0115] The threshold value may be set in advance, for example, and may be a value that varies depending on the agricultural material, or may be a fixed value regardless of the agricultural material. The threshold value may also be set based on the total quantity of agricultural materials that each user acquires in a typical year. For example, the threshold value may be set to a value that is greater than the total quantity of agricultural materials that each user acquires in a typical year.

[0116] The surplus estimation unit 370 may also calculate the total quantity of agricultural materials purchased by each user for each region. In this case, the threshold value may be different for each region, or may be a fixed value regardless of the region.

[0117] In step S520, the surplus estimation unit 370 extracts surplus information indicating the surplus quantity 443 of each user for agricultural materials whose total quantity obtained by each user within a predetermined period is equal to or greater than a threshold. For example, when the total quantity obtained of Exceed powder DL is equal to or greater than a threshold, the surplus estimation unit 370 extracts surplus information indicating the surplus quantity 443 of each user for Exceed powder DL. The surplus information extracted by the surplus estimation unit 370 may represent the owned quantity line 442 shown in FIG. 3.

[0118] In step S525, the output unit 380 outputs the extracted surplus information and bulk purchase information related to agricultural materials for which the total quantity purchased by each user is equal to or greater than a threshold to the display terminal 200. The bulk purchase information indicates, for example, the names of agricultural materials for which the total quantity purchased by each user is equal to or greater than a threshold, and the fact that the agricultural materials were purchased in bulk. The bulk purchase information may also include information indicating the total quantity purchased by each user. For example, the output unit 380 outputs the surplus information and bulk purchase information to the display terminal 200 of each user.

[0119] Furthermore, when the total quantity of agricultural materials acquired is calculated for each region, the large-volume acquisition information may include information indicating the region where a quantity equal to or greater than a threshold value has been acquired. Furthermore, when the total quantity of agricultural materials acquired is calculated for each region, the output unit 380 outputs surplus information and large-volume acquisition information to the display terminals 200 of users in regions other than the region where the total is equal to or greater than the threshold value, for example, to the display terminals 200 of users in regions adjacent to the region. The output unit 380 may output surplus information and large-volume acquisition information to the display terminals 200 of users in the region.

[0120] In step S530, the display unit 250 of the display terminal 200 displays the surplus information and large-volume acquisition information acquired from the sharing device 300. For example, as shown in Fig. 3, the display unit 250 displays agricultural material information 441 related to agricultural materials for which the total quantity acquired by each user is equal to or exceeds a threshold, and also displays information indicating that each user has purchased a large quantity of the corresponding agricultural material. This allows users to quickly consider purchasing the corresponding agricultural material or acquiring it from another user.

[0121] The process after step S530 shown in FIG. 15 is the same as the process after step S235 shown in FIG. 12A, and therefore a detailed description thereof will be omitted.

[0122] In this way, the sharing system 1000 supports the transfer of agricultural materials even when they are purchased in bulk.

[0123] (Variation) The configurations described in the embodiments are merely examples, and the configurations can be changed as long as the functions are not impaired. For example, in the process shown in Fig. 11, when work plan information 431 is registered first, the sharing device 300 may estimate the surplus quantity 443 based on the work plan information 431. In this case, the sharing system 1000 may execute the processes from step S215 onwards shown in Fig. 12A after the process of step S115 shown in Fig. 11.

[0124] 12A may represent the quantity of agricultural materials required to perform all work in the field 500. In this case, in step S215, the usage estimation unit 360 of the sharing device 300 uses the quantity of agricultural materials represented in the work plan information 431 as the quantity of agricultural materials planned to be used in the work represented in the work plan information 431.

[0125] The amount of agricultural material used may also be estimated by the sharing system 1000, for example, the usage estimation unit 360 of the sharing device 300. For example, in step S215, the usage estimation unit 360 may estimate the amount of agricultural material used based on the quantity recommended by the manufacturer of the agricultural material with the input name. In this case, the quantity recommended by the agricultural material manufacturer is stored in advance in the storage device 340 of the sharing device 300. The usage estimation unit 360 may also estimate the amount of agricultural material used based on the quantity of agricultural material used by the user in work of the same work type in the past. In this case, for example, the usage estimation unit 360 estimates the amount of agricultural material used based on a statistical value, such as the average or median, of the quantity of agricultural material used by the user in work of the same work type in the past. The usage estimation unit 360 may also estimate the amount of agricultural material used based on the work type of work using the agricultural material. For example, the amount of agricultural materials used according to the type of work is stored in advance in the storage device 340 of the sharing device 300, and the usage estimation unit 360 estimates the amount of agricultural materials used based on the type of work indicated in the work plan information 431.

[0126] For example, in step S220 shown in FIG. 12A , the surplus estimation unit 370 of the sharing device 300 may estimate the surplus quantity 443 for the work period represented in the work plan information 431 using any method from the quantity of agricultural materials owned by the user immediately before the work period and the planned usage quantity. For example, the surplus estimation unit 370 may estimate the surplus quantity 443 so that the planned usage quantity of agricultural materials will be used at a certain time during the work period. For example, the surplus estimation unit 370 may estimate the surplus quantity 443 so that the planned usage quantity of agricultural materials will be used when the work period starts. Alternatively, the surplus estimation unit 370 may estimate the surplus quantity 443 so that the planned usage quantity of agricultural materials will be used when half of the work period has elapsed. The surplus estimation unit 370 may estimate the surplus quantity 443 so that the planned usage quantity of agricultural materials will be used at the end of the work period.

[0127] 12A, the output unit 380 of the sharing device 300 may output agricultural material information 441, which indicates the quantity of agricultural materials for each period of time that they were acquired, as surplus information, as shown in FIG. 16. For example, the agricultural material information 441 output as surplus information may represent a third held quantity line 442-3 and a fourth held quantity line 442-4. For example, the third held quantity line 442-3 indicates the quantity of agricultural materials that were acquired before the material purchase date 610 and are held for each period, and the fourth held quantity line 442-4 indicates the quantity of agricultural materials that were acquired on the material purchase date 610 and are held for each period.

[0128] In this case, for example, the third held quantity line 442-3 and the fourth held quantity line 442-4 are estimated by the surplus estimation unit 370 of the sharing device 300 in the processing of step S220 shown in FIG. 12A. The surplus estimation unit 370 estimates the surplus quantity 443 for each period so that agricultural materials obtained first are used in the work represented in the work plan information 431. For example, as shown in FIG. 16, the surplus estimation unit 370 estimates the surplus quantity 443 for each period so that agricultural materials represented by the third held quantity line 442-3 are used first in the work represented in the second work plan information 431-2. Therefore, at the beginning of the work period represented in the second work plan information 431-2, the surplus estimation unit 370 estimates the surplus quantity 443 for each period so that the third held quantity line 442-3 decreases first and the fourth held quantity line 442-4 is maintained. After the quantity on the third held quantity line 442-3 reaches zero, the surplus estimation unit 370 estimates the surplus quantity 443 for each period so that the fourth held quantity line 442-4 decreases. After the quantity on the fourth held quantity line 442-4 reaches zero, no agricultural materials have been procured, so the quantity on the fourth held quantity line 442-4 is estimated to represent a negative number.

[0129] In step S235 shown in FIG. 12A, when a user wishing to donate agricultural materials requests money from a user wishing to acquire the agricultural materials as a condition for providing the agricultural materials, the display unit 250 of the display terminal 200 may receive information indicating the desired amount in the donation request information. This information may be included, for example, in the donation request information. In this case, the information indicating this amount may be included in the provider information output by the negotiation support unit 390 of the sharing device 300 in step S260 shown in FIG. 12B, and the display unit 250 of the display terminal 200 may display this amount in association with the user's name in step S270.

[0130] Furthermore, in step S235, the display unit 250 of the display terminal 200 may receive information indicating the acquisition date, for example, the purchase date, of the agricultural materials provided by the user. For example, this information is included in the provider information output by the negotiation support unit 390 of the sharing device 300 in step S260. In step S265, the display unit 250 of the display terminal 200 may display this acquisition date in association with the user's name.

[0131] The negotiation between users that takes place after the processing of step S280 shown in FIG. 12B may be carried out by any method. For example, the negotiation may be carried out by directly sending and receiving emails between users. Alternatively, the negotiation may be carried out via an administrator who manages the sharing system 1000. Furthermore, the sharing system 1000 may be configured so that, without negotiation between users, users who wish to provide agricultural materials submit conditions, and users who accept the submitted conditions acquire the agricultural materials. In this case, for example, in step S235 shown in FIG. 12A, the display unit 250 of the display terminal 200 accepts the conditions under which users provide agricultural materials as offer request information. In step S265 shown in FIG. 12B, the display unit 250 of the display terminal 200 notifies the conditions to users who wish to acquire the agricultural materials.

[0132] In step S320 shown in FIG. 13 , the consumption determination unit 350 of the sharing device 300 may estimate the type of work being performed by the working device 100 based on the operation information of the working device 100, and determine the consumption quantity based on the estimated type of work. For example, the consumption determination unit 350 may estimate the type of work being performed by the working device 100 using any method based on the operation information of the working device 100. The work type may be estimated using any method conceivable by a person skilled in the art. For example, the consumption determination unit 350 may estimate the work type using any known identification method, such as extracting feature values ​​from the input information (operation information) and using a statistical method based on the feature values. The consumption determination unit 350 may also estimate the work type using a learning model trained to estimate the work type from operation information.

[0133] Furthermore, information about the agricultural materials used by the work device 100, such as the name and quantity, may be input by the user to the input / output device 210 of the display terminal 200. For example, in step S325 shown in Fig. 13, the surplus estimation unit 370 may use the information about the agricultural materials input by the user to update the agricultural material data 440, without the consumption determination unit 350 of the sharing device 300 determining the information about the agricultural materials. Furthermore, the information about the agricultural materials determined by the consumption determination unit 350 may be used to update the agricultural material data 440 after being confirmed by the user.

[0134] In step S410 shown in FIG. 14 , the usage estimation unit 360 of the sharing device 300 may determine that the event will affect not only the fields 500 included in the area represented by the event information, but also fields 500 included in areas adjacent to that area. The range of the area affected by the event represented in the event information may be determined according to the event represented in the event information. For example, if the event represented in the event information may have a wide-ranging impact, the usage estimation unit 360 may determine that the event will affect not only the area represented in the event information, but also fields 500 included in areas adjacent to that area. Furthermore, the usage estimation unit 360 may determine that the event will affect fields 500 that are within a predetermined distance from the area represented in the event information. Furthermore, when the event information represents an event that has a large impact on the field 500 and requires the use of a large amount of agricultural materials to reduce the impact, the usage estimation unit 360 may determine that the event will affect the field 500 regardless of the area represented in the event information. This allows the sharing system 1000 to notify users that agricultural materials may be purchased in large quantities in the area where the incident occurred, making it difficult to purchase those agricultural materials in other areas.

[0135] In step S415 shown in FIG. 14, when there are multiple agricultural materials that can be used to reduce the impact of the event indicated in the event information, the use estimation unit 360 of the sharing device 300 may estimate the event use quantity for each agricultural material. In this case, the planned use quantity and surplus quantity 443 for each agricultural material are also estimated in the processes of steps S420 and S425, and the display unit 250 of the display terminal 200 displays surplus information indicating the surplus quantity 443 for each agricultural material. Based on the multiple pieces of surplus information displayed, the user can efficiently determine the agricultural materials to use as countermeasures for the event. Furthermore, the sharing device 300 may estimate the event use quantity, planned use quantity, and surplus quantity 443 for the agricultural material that the user owns in the largest quantity.

[0136] The event information may also represent weather fluctuations that affect agricultural crops. For example, when high temperatures continue for several days, the effectiveness of fertilizer sprayed on the field 500 may decrease, and additional fertilization may be required. When low temperatures continue for several days, diseases such as rice blast may occur in crops grown in the field 500, and pesticide spraying may be required. Therefore, for example, the event information may represent that the number of days with temperatures higher than average by a temperature threshold or more continues for a period of time exceeding a threshold. In step S410 shown in FIG. 14, the usage estimation unit 360 of the sharing device 300 may determine that the field 500 is affected in an area where high temperatures continue for a period of time exceeding a threshold. The information distribution device 30 may distribute weather information for each period, for example, for each day, such as information indicating the temperature, and the usage estimation unit 360 of the sharing device 300 may determine whether weather fluctuations that affect agricultural crops are occurring based on the weather information.

[0137] The event information may also indicate that poor germination or poor growth has occurred in the crops in the field 500. The usage estimation unit 360 of the sharing device 300 may also determine the poor germination or poor growth. For example, the usage estimation unit 360 may determine the poor germination or poor growth of the crops based on an image of the field 500 captured by a fixed camera installed in the field 500. For example, the usage estimation unit 360 determines the poor germination or poor growth of the crops using a learning model that has been trained to determine poor germination or poor growth from an image of the field 500. The image of the field 500 may be captured by a camera installed in the working device 100.

[0138] Furthermore, the output unit 380 of the sharing device 300 may output shortage information indicating a shortage of agricultural materials to the display terminal 200 when a predetermined period of time has passed since the time when the agricultural material quantity in the agricultural material information 441 stored in the agricultural material data 440 becomes smaller than a threshold. For example, as shown in FIG. 4 , the output unit 380 detects a material shortage date 620 on which the agricultural material quantity becomes a threshold, e.g., zero. When the current date reaches a predetermined period of time, e.g., one month before the detected material shortage date 620, the output unit 380 outputs the shortage information to the display terminal 200. Based on the shortage information, the display unit 250 of the display terminal 200 displays an image indicating that agricultural materials will be in short supply on the material shortage date 620 to notify the user. By checking the material shortage date 620 on which agricultural materials will be in short supply, the user can reduce the likelihood of forgetting to prepare agricultural materials. Note that the threshold may be set in advance by the user, for example.

[0139] In step S515 shown in Figure 15, the surplus estimation unit 370 of the sharing device 300 may further determine whether an event affecting agricultural work has occurred in an area where the total amount of collected agricultural materials is equal to or greater than a threshold. In this case, if an event affecting agricultural work has occurred, the process proceeds to step S520, and if no event has occurred, the process ends. The surplus estimation unit 370 identifies the area where an event affecting agricultural work has occurred based on the event information distributed by the information distribution device 30.

[0140] The above-described embodiments and modifications are merely examples, and the configurations described in each embodiment and modification may be arbitrarily changed and / or combined as long as the functions are not impaired. Furthermore, some of the functions described in the embodiments and modifications may be omitted as long as the required functions can be realized. For example, the sharing device 300 may execute some or all of the processing of the display terminal 200. Furthermore, the display terminal 200 may execute some or all of the processing of the sharing device 300. The display terminal 200 may be mounted on the working device 100.

[0141] The sharing program 470 may also include the information output program 400 and the display program 410 .

[0142] Furthermore, the sharing system 1000 may not include the maintenance apparatus 100, and may acquire operation information from an external maintenance apparatus that is not included in the sharing system 1000. Furthermore, the sharing system 1000 may not include the display terminal 200, and may acquire various types of information from an external display terminal that is not included in the sharing system 1000, and may output various types of information to the external display terminal.

[0143] The sharing system 1000 may set the planned usage quantity to be used when work is performed in the field 500 as a value corresponding to the area of ​​the field 500, without using the work plan information 431. In this case, for example, a usage amount indicating the quantity of agricultural materials planned to be used per unit area between now and a predetermined period is stored in advance in the storage device 340 of the sharing device 300. The usage estimation unit 360 of the sharing device 300 may estimate the planned usage quantity by multiplying the usage amount stored in the storage device 340 by the area of ​​the field 500.

[0144] The quantity of agricultural materials may be any value that represents the amount of agricultural materials owned by the user. For example, the quantity of agricultural materials may represent the volume of the agricultural materials, the number of unopened bags containing the agricultural materials, etc.

[0145] In addition, users of the sharing system 1000 may include not only people who own the field 500, but also anyone related to agricultural materials, such as people who manage work on the field 500, or people who arrange agricultural materials for work on the field 500.

[0146] Furthermore, the output unit 380 of the sharing device 300 does not have to output surplus information in step S525 shown in Figure 15. In this case, the user determines whether to prepare agricultural materials by checking the bulk procurement information.

[0147] (Addendum) The sharing method, sharing system, and sharing program described in each embodiment can be described as follows.

[0148] A sharing method according to a first aspect includes: determining a first consumption quantity representing the quantity of agricultural materials used by a first work implement of a first user performing work in a first field, based on operation information of the first work implement; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not scheduled to be used, based on the first consumption quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; Acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Includes.

[0149] A sharing method according to a second aspect is the sharing method according to the first aspect, estimating a first planned use quantity of the agricultural material that the first user plans to use in the first field based on work plan information that indicates work that is planned to be performed in the first field; further comprising Estimating the first surplus quantity includes: Estimating the first surplus quantity based on the first consumption quantity, the first planned use quantity, and the first acquisition quantity. Includes.

[0150] A sharing method according to a third aspect is the sharing method according to the second aspect, The work plan information represents a usage amount indicating the quantity of the agricultural materials to be used in work scheduled to be performed in the first field.

[0151] A sharing method according to a fourth aspect is the sharing method according to the third aspect, The usage amount indicates the quantity of the agricultural material to be used per unit area in the work to be carried out in the first field.

[0152] A sharing method according to a fifth aspect is the sharing method according to any one of the second to fourth aspects, the work plan information includes information representing a work period during which work will be performed in the first field, Estimating the first surplus quantity includes: estimating the first surplus quantity immediately after the work period indicated in the work plan information based on the first consumption quantity, the first planned use quantity, and the first acquisition quantity; Includes.

[0153] A sharing method according to a sixth aspect is the sharing method according to the fifth aspect, Estimating the first surplus quantity includes: Estimating the first surplus quantity at each predetermined time period during the work period based on the first consumption quantity, the first planned use quantity, and the first acquisition quantity. Includes.

[0154] A sharing method according to a seventh aspect is the sharing method according to any one of the first to sixth aspects, When the acquisition request information is acquired, outputting provider information representing a second user who has requested the provision of the agricultural materials. Further includes:

[0155] A sharing method according to an eighth aspect is the sharing method according to any one of the first to seventh aspects, estimating an event usage quantity representing the quantity of the agricultural materials to be consumed to deal with the event based on event information representing an event affecting the crops and the area of ​​the first field; further comprising First, estimating the surplus quantity is Estimating a first surplus quantity, which represents the quantity of the agricultural materials owned by the first user that are not scheduled to be used, based on the first consumption quantity, the first acquisition quantity, and the event use quantity. Includes.

[0156] A sharing method according to a ninth aspect is the sharing method according to any one of the first to eighth aspects, When the total quantity of the agricultural materials acquired by each user, including the first acquisition quantity, is equal to or greater than a threshold value, outputting bulk acquisition information including information representing the names of the agricultural materials. Further includes:

[0157] A sharing method according to a tenth aspect is the sharing method according to the first or ninth aspect, Accepting the information desired to be provided or the information desired to be acquired in response to input from the user. Includes.

[0158] A sharing method according to an eleventh aspect includes: estimating a first planned use quantity of the agricultural material that the first user plans to use in the first field based on work plan information that represents work that is planned to be performed in the first field; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not planned to be used, based on the first planned use quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; Acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Includes.

[0159] A sharing method according to a twelfth aspect includes: estimating an event usage quantity representing a quantity of the agricultural material to be consumed to deal with the event based on event information representing an event affecting agricultural crops and an area of ​​the first field; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not scheduled to be used, based on the event usage quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; Acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Includes.

[0160] A sharing system according to a thirteenth aspect includes: a consumption determination unit that determines a first consumption quantity that indicates the quantity of agricultural materials used by a first work device of a first user working in a first field, based on operation information of the first work device; a surplus estimation unit that estimates a first surplus quantity that represents the quantity of the agricultural materials that are not scheduled to be used among the agricultural materials owned by the first user, based on the first consumption quantity and a first acquisition quantity that represents the quantity of the agricultural materials acquired by the first user; an output unit that outputs margin information representing the first margin quantity; a negotiation support unit that acquires provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Equipped with.

[0161] A sharing system according to a fourteenth aspect includes: a usage estimation unit that estimates a first planned usage quantity of the agricultural material that the first user plans to use in the first field based on work plan information that represents work that is planned to be performed in the first field; a surplus estimation unit that estimates a first surplus quantity, which represents the quantity of the agricultural materials that are not planned to be used among the agricultural materials owned by the first user, based on the first planned use quantity and a first acquisition quantity, which represents the quantity of the agricultural materials that the first user has acquired; an output unit that outputs margin information representing the first margin quantity; a negotiation support unit that acquires provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Equipped with.

[0162] A sharing system according to a fifteenth aspect includes: a usage estimation unit that estimates an event usage quantity that represents a quantity of the agricultural materials that will be consumed to deal with the event, based on event information that represents an event that affects agricultural crops and an area of ​​the first field; a surplus estimation unit that estimates a first surplus quantity, which represents the quantity of the agricultural materials owned by the first user that are not scheduled for use, based on the event usage quantity and a first acquisition quantity, which represents the quantity of the agricultural materials acquired by the first user; an output unit that outputs margin information representing the first margin quantity; a negotiation support unit that acquires provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Equipped with.

[0163] A sharing program according to a sixteenth aspect includes: determining a first consumption quantity representing the quantity of agricultural materials used by a first work implement of a first user performing work in a first field, based on operation information of the first work implement; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not scheduled to be used, based on the first consumption quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; Acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; The calculation device executes the following.

[0164] A sharing program according to a seventeenth aspect of the present invention is estimating a first planned use quantity of the agricultural material that the first user plans to use in the first field based on work plan information that represents work that is planned to be performed in the first field; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not planned to be used, based on the first planned use quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; Acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; The calculation device executes the following. [Explanation of symbols]

[0165] 1, 2, 3: Storage medium 20: Network 30: Information distribution device 100: Work equipment 110: Input / output device 112: Sensor 114: Positioning device 120: Arithmetic device 130: Communication equipment 140: Storage device 150: Information output section 200: Display terminal 210: Input / output device 220: Arithmetic device 230: Communication equipment 240: Storage device 250:Display section 300: Sharing device 310: Input / output device 320: Arithmetic device 330: Communication equipment 340 :Storage device 350: Consumption decision section 360: Usage estimation part 370: Margin estimation unit 380: Output section 390: Negotiation Support Department 400: Information output program 410: Display program 420: Field data 430: Work plan data 431: Work plan information 440: Agricultural materials data 441: Agricultural materials information 442: Holding quantity line 443: Excess quantity 450: Incident response data 460: Provider Data 470: Sharing Program 500: Field 510: Orbit 520: Positioning location 610: Material purchase date 620: Material shortage day 1000: Sharing system

Claims

1. determining a first consumption quantity representing the quantity of agricultural materials used by a first work device of a first user performing work in a first field, based on operation information of the first work device; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not scheduled for use, based on the first consumption quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Sharing methods including:

2. estimating a first planned use quantity of the agricultural material that the first user plans to use in the first field based on work plan information that indicates work that is planned to be performed in the first field; further comprising Estimating the first surplus quantity includes: Estimating the first surplus quantity based on the first consumption quantity, the first planned use quantity, and the first acquisition quantity. The sharing method of claim 1 , comprising:

3. The work plan information indicates a usage amount indicating the quantity of the agricultural materials to be used in the work to be performed in the first field. The sharing method according to claim 2 .

4. The usage amount represents the quantity of the agricultural material to be used per unit area in the work to be carried out in the first field. The sharing method according to claim 3 .

5. the work plan information includes information representing a work period during which work will be performed in the first field, Estimating the first surplus quantity includes: estimating the first surplus quantity immediately after the work period indicated in the work plan information based on the first consumption quantity, the first planned use quantity, and the first acquisition quantity; The sharing method according to any one of claims 2 to 4, comprising:

6. Estimating the first surplus quantity includes: and estimating the first surplus quantity at each predetermined time period during the work period based on the first consumption quantity, the first planned use quantity, and the first acquisition quantity. The sharing method of claim 5 , comprising:

7. When the acquisition request information is acquired, provider information indicating a second user who has requested the provision of the agricultural materials is output. The sharing method according to claim 1 , further comprising:

8. estimating an event usage quantity representing the quantity of the agricultural materials to be consumed to deal with the event based on event information representing an event affecting the crops and the area of ​​the first field; further comprising Estimating the first surplus quantity includes: Estimating the first surplus quantity, which represents the quantity of the agricultural materials owned by the first user that are not scheduled to be used, based on the first consumption quantity, the first procurement quantity, and the event usage quantity. The sharing method according to any one of claims 1 to 4, comprising:

9. When the total quantity of the agricultural materials acquired by each user including the first acquisition quantity is equal to or greater than a threshold value, outputting bulk acquisition information including information representing the names of the agricultural materials. The sharing method according to claim 1 , further comprising:

10. Accepting the information desired to be provided or the information desired to be acquired in response to input from the user. The sharing method according to any one of claims 1 to 4, comprising:

11. estimating a first planned use quantity of agricultural materials that a first user plans to use in a first field based on work plan information that represents work that is planned to be performed in the first field; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not planned to be used, based on the first planned use quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Sharing methods including:

12. estimating an event usage quantity representing a quantity of agricultural materials to be consumed in a first field of a first user to deal with the event based on event information representing an event affecting crops and an area of ​​the first field of the first user; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not scheduled to be used, based on the event usage quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; Sharing methods including:

13. a consumption determination unit that determines a first consumption quantity representing the quantity of agricultural materials used by a first work device of a first user performing work in a first field, based on operation information of the first work device; a surplus estimation unit that estimates a first surplus quantity that represents the quantity of the agricultural materials that are not scheduled to be used among the agricultural materials owned by the first user, based on the first consumption quantity and a first acquisition quantity that represents the quantity of the agricultural materials acquired by the first user; an output unit that outputs margin information representing the first margin quantity; a negotiation support unit that acquires provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; A sharing system equipped with:

14. a usage estimation unit that estimates a first planned usage quantity of agricultural materials that a first user plans to use in a first field based on work plan information that indicates work that is planned to be performed in the first field; a surplus estimation unit that estimates a first surplus quantity, which represents the quantity of the agricultural materials that are not planned to be used among the agricultural materials owned by the first user, based on the first planned use quantity and a first acquisition quantity, which represents the quantity of the agricultural materials that the first user has acquired; an output unit that outputs margin information representing the first margin quantity; a negotiation support unit that acquires provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; A sharing system equipped with:

15. a usage estimation unit that estimates an event usage quantity that represents a quantity of agricultural materials that are expected to be consumed in a first field of a first user to deal with the event, based on event information that represents an event that affects agricultural crops and an area of ​​the first field of the first user; a surplus estimation unit that estimates a first surplus quantity, which represents the quantity of the agricultural materials owned by the first user that are not scheduled for use, based on the event usage quantity and a first acquisition quantity, which represents the quantity of the agricultural materials acquired by the first user; an output unit that outputs margin information representing the first margin quantity; a negotiation support unit that acquires provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; A sharing system equipped with:

16. determining a first consumption quantity representing the quantity of agricultural materials used by a first work device of a first user performing work in a first field, based on operation information of the first work device; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not scheduled for use, based on the first consumption quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; A sharing program that causes a computing device to execute the above.

17. estimating a first planned use quantity of agricultural materials that a first user plans to use in a first field based on work plan information that represents work that is planned to be performed in the first field; estimating a first surplus quantity representing the quantity of the agricultural materials owned by the first user that is not planned to be used, based on the first planned use quantity and a first acquisition quantity representing the quantity of the agricultural materials acquired by the first user; outputting margin information representing the first margin quantity; acquiring provision request information indicating that the first user wishes to provide the agricultural materials or acquisition request information indicating that the first user wishes to acquire the agricultural materials; A sharing program that causes a computing device to execute the above.

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