Work management method, work management system, and work management program

Abstract

To provide a work management method, a work management system, and a work management program that reduce an operation of a user for displaying a distribution of evaluation information in a farm field.SOLUTION: A work management method includes: Step S120 of determining a first evaluation graphic representing first evaluation information included in operation information on work performed in a farm field by a work apparatus; S130 of determining a position where the first evaluation graphic is disposed in a first display image representing the first evaluation information based on a position where the operation information is measured; and Step S150 of generating image information representing the first display image in which the first evaluation graphic is disposed. Determining the first evaluation graphic may include determining a hue of the first evaluation graphic according to the first evaluation information.SELECTED DRAWING: Figure 5

Description

[Technical Field]

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

[0002] In recent years, there has been research into analyzing cultivation management using information on work carried out in fields.

[0003] Patent Document 1 discloses a technique for dividing a pre-registered farm field into small areas in a mesh pattern and displaying the small areas in different colors according to the evaluation value of the small area, for example, the yield of a crop. A user, such as a worker or a farm owner, can easily understand the distribution of evaluation values ​​in the farm field by checking the small areas displayed in different colors according to the evaluation value. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6950880 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the user needs to set small areas by dividing the field into a mesh pattern.

[0006] In view of the above circumstances, one object of the present disclosure is to reduce the number of operations required by a user to display the distribution of evaluation information in a farm field. Other objects can be understood from the following description and the 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 work management method according to one embodiment includes determining a first evaluation figure (470) representing first evaluation information included in operation information related to work performed in a field (400) by a work implement (30). The work management method also includes determining a position at which to place the first evaluation figure (470) in a first display image representing the first evaluation information, based on a position at which the operation information was measured. The work management method also includes generating image information representing the first display image in which the first evaluation figure (470) is placed.

[0009] To achieve the above object, a work management system (1000) according to one embodiment includes a graphic determination unit (170) and an image information generation unit (180). The graphic determination unit (170) determines a first evaluation graphic (470) representing first evaluation information included in operation information related to work performed in a field (400) by a work implement (30). The image information generation unit (180) determines a position for placing the first evaluation graphic (470) in a first display image representing the first evaluation information based on a position where the operation information was measured, and generates image information representing the first display image in which the first evaluation graphic (470) is placed.

[0010] To achieve the above object, a work management program (310) according to one embodiment causes a calculation device (120, 220) to determine a first evaluation graphic (470) representing first evaluation information included in operation information related to work performed in a field (400) by a work tool (30). The work management program (310) also causes the calculation device (120, 220) to determine a position at which to place the first evaluation graphic (470) in a first display image representing the first evaluation information, based on a position at which the operation information was measured. The work management program (310) also causes the calculation device (120, 220) to generate image information representing the first display image in which the first evaluation graphic (470) is placed. [Effects of the Invention]

[0011] According to the above aspect, it is possible to reduce the number of operations performed by the user to display the distribution of evaluation information in the field. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a configuration diagram of a work management system according to an embodiment; [Figure 2] 4A and 4B are diagrams for explaining position information acquired by a work device in one embodiment. [Figure 3] 1 is a diagram illustrating a configuration of a working device according to an embodiment. FIG. [Figure 4] FIG. 2 is a diagram illustrating functional blocks executed by the work management system according to an embodiment. [Figure 5] 1 is a flowchart illustrating a process performed by a work management system according to an embodiment. [Figure 6] FIG. 10 is a diagram for explaining an evaluation graphic according to an embodiment. [Figure 7] 10A and 10B are diagrams for explaining the relationship between the speed of the working device and an evaluation figure in one embodiment. [Figure 8] FIG. 10 is a diagram illustrating an operation area according to an embodiment. [Figure 9]FIG. 10 is a diagram for explaining an evaluation graphic according to an embodiment. [Figure 10] FIG. 10 is a diagram for explaining an evaluation graphic according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] (Embodiment) A work management 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 work management system 1000 includes a work management apparatus 100 and a terminal 200. The work management apparatus 100 is communicably connected to the terminal 200 and a work apparatus 30 via a network 20, for example, the Internet.

[0014] The work device 30 is equipped with a positioning device, for example a GNSS (Global Navigation Satellite System) receiver, and acquires position information 460 that indicates the position at each time, as shown in Fig. 2. Therefore, the position information 460 indicates the position along the trajectory 450 that the work device 30 has traveled. The work device 30 acquires position information 460 that indicates the position of the work device 30 at each time.

[0015] The working device 30 also acquires status information that indicates the state of the working device 30 at each time, such as information indicating the speed, steering angle, engine RPM, engine load, and ON / OFF status of various clutches of the working device 30. For example, as shown in FIG. 3 , the working device 30 is equipped with a prime mover 31, such as an engine or motor, and uses the power generated by the prime mover 31 to move the traveling unit 32, such as wheels and crawlers. The speed of the working device 30 included in the status information is measured, for example, based on the force transmitted from the prime mover 31 to the traveling unit 32, such as the number of rotations of the wheels. When the working device 30 is a vehicle that tows a work machine, such as a tractor, the status information may also include information such as the PTO (power take-off) RPM when transmitting power to the work machine, and the hitch height and lift arm angle that indicate the attitude of the work machine.

[0016] The work device 30 also measures the amount of work performed by the work device 30 at each time, such as the amount of crops planted, the amount of pesticide applied, and the amount of crops harvested. The work device 30 may be a vehicle formed integrally with a work machine, such as a combine harvester. The work device 30 may also be a drone that sprays pesticides. As shown in FIG. 3, the work device 30 may also be a vehicle, such as a tractor, that pulls a work machine, such as a rotary tiller.

[0017] The maintenance device 30 includes a communication device 33 and outputs operation information to the maintenance management device 100, including work information indicating the amount of work, position information 460, and status information. For example, one piece of operation information represents the work information, position information 460, and status information at a certain time. Furthermore, one piece of operation information represents the time at which the work information, status information, and position information 460 were measured. When the engine is stopped, the maintenance device 30 transmits multiple pieces of operation information at each time from when the engine is started to when it is stopped to the arithmetic device 120 of the maintenance management device 100. The maintenance device 30 may sequentially output the operation information to the maintenance management device 100. Furthermore, the maintenance device 30 may output the multiple pieces of accumulated operation information to the maintenance management device 100 via an external storage device, such as a USB memory (Universal Serial Bus flash drive).

[0018] The work management apparatus 100 generates image information representing evaluation information for the field 400, such as the speed of the work apparatus 30, the planting amount, the amount of pesticide applied, and the harvest yield, based on multiple pieces of operation information acquired from the work apparatus 30. For example, the image information is a display image showing an evaluation graphic representing the evaluation information at a position on a map indicated by position information 460. The terminal 200 displays the display image represented by the image information. A user, such as a worker or the owner of the field 400, can easily understand the work performed by the work apparatus 30 by checking the display image displayed on the terminal 200. At this time, the work management apparatus 100 determines the position at which to display the evaluation information based on the position information 460 acquired from the work apparatus 30. As a result, the work management system 1000 can reduce the burden on the user of registering information about the field 400 and setting information for displaying the evaluation information.

[0019] (Work management system configuration) The configuration of the work management device 100 included in the work management system 1000 will be described. As shown in FIG. 1, the work management device 100 includes an input / output device 110, a calculation device 120, a communication device 130, and a storage device 140. The work management device 100 is, for example, a computer. Information used by the calculation device 120 to execute processing is input to the input / output device 110. The input / output device 110 also outputs the results of processing executed by the calculation device 120. The input / output device 110 includes various input and output devices, such as a keyboard, a mouse, a microphone, a display, a speaker, and a touch panel. The input / output device 110 may be omitted.

[0020] The communication device 130 is electrically connected to the network 20 and communicates with each device via the network 20. The communication device 130 transfers a plurality of pieces of operation information acquired from the maintenance device 30 to the calculation device 120. The communication device 130 also transfers signals generated by the calculation device 120 to the terminal 200. The communication device 130 includes various interfaces, such as a network interface card (NIC) and a universal serial bus (USB).

[0021] The storage device 140 stores various data, such as farm field data 300, for generating image information that represents evaluation information of the work performed by the work device 30 on a map, and a work management program 310. The storage device 140 is used as a non-transitory tangible storage medium that stores the work management program 310. The work management program 310 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.

[0022] The farm field data 300 represents an area of ​​the farm field 400 where the work implement 30 performs work. For example, the farm field data 300 may represent the areas of a plurality of farm fields 400.

[0023] The arithmetic unit 120 reads out and executes the work management program 310 from the storage device 140, and performs various data processing to generate image information. For example, the arithmetic unit 120 includes a central processing unit (CPU) and the like.

[0024] By reading and executing the work management program 310, the arithmetic device 120 implements a data storage unit 150, an information extraction unit 160, a graphic determination unit 170, and an image information generation unit 180, as shown in FIG. 4. The data storage unit 150 stores field data 300. The information extraction unit 160 extracts, from among multiple pieces of operation information, operation information corresponding to the evaluation information displayed in the display image, for example, operation information corresponding to the field 400. The graphic determination unit 170 determines an evaluation graphic, for example, a color, corresponding to the evaluation information displayed in the display image. The image information generation unit 180 determines the position and display form of the evaluation graphic in the display image, and generates image information representing the display image. The generated image information is output to the terminal 200 by the image information generation unit 180.

[0025] Next, the configuration of the terminal 200 will be described. As shown in Fig. 1, the terminal 200 includes an input / output device 210, an arithmetic device 220, a communication device 230, and a storage device 240. The terminal 200 includes, for example, a computer, a tablet, a mobile phone, 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.

[0026] The communication device 230 is electrically connected to the network 20 and communicates with each device via the network 20. The communication device 230 transfers signals acquired from the work management device 100 to the calculation device 220. The communication device 230 also transfers signals generated by the calculation device 220 to the work management device 100. The communication device 230 includes various interfaces, such as a transceiver used for wireless communication such as a wireless LAN (Local Area Network) or a cellular network, a NIC (Network Interface Card), and a USB (Universal Serial Bus).

[0027] The storage device 240 stores various data for displaying a display image, such as the display program 320. The storage device 240 is used as a non-transitory tangible storage medium for storing the display program 320. The display program 320 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.

[0028] 4, the arithmetic device 220 reads and executes the display program 320, thereby realizing the display unit 250 in cooperation with the input / output device 210. The display unit 250 acquires image information from the work management apparatus 100, and displays a display image represented by the image information on the input / output device 210.

[0029] (Work management system operation) 1 performs work in a field 400, it transmits multiple pieces of operation information to the arithmetic device 120 of the work management apparatus 100. When the arithmetic device 120 receives the multiple pieces of operation information from the work device 30, it reads and executes a work management program 310. When the work management program 310 is read and executed, the arithmetic device 120 starts the processing shown in FIG. 5, which is part of a work management method.

[0030] In step S110, the information extraction unit 160 realized by the calculation device 120 extracts field operation information within the field 400 from the multiple pieces of operation information. For example, the information extraction unit 160 acquires information representing the area of ​​the field 400 from the field data 300. The information extraction unit 160 extracts, from the multiple pieces of operation information, field operation information in which the position represented by the position information 460 is included in the area of ​​the field 400.

[0031] In step S120, the graphic determination unit 170 determines an evaluation graphic representing the evaluation information, for example, the color of the evaluation graphic, for each piece of operation information included in the field operation information, based on the evaluation information displayed in the image. The evaluation information represents one piece of information selected from the information included in the operation information, such as the amount of work, the speed of the implement 30, or the fuel consumption of the implement 30. For example, the evaluation information to be displayed first is determined in advance. The graphic determination unit 170 determines the evaluation graphic, for example, the color of the evaluation graphic, based on the evaluation information.

[0032] For example, the graphic determination unit 170 may determine a red graphic for a value represented by the evaluation information, such as the fuel consumption of the working device 30, and may determine a blue graphic for a value represented by the evaluation information, such as the fuel consumption of the working device 30. The graphic determination unit 170 may determine the color of the evaluation graphic corresponding to each evaluation information based on the maximum and minimum values ​​represented by the evaluation information. For example, as a color range of the evaluation graphic, a first color when the evaluation information represents the maximum value and a second color when the evaluation information represents the minimum value are predetermined. The graphic determination unit 170 extracts the maximum and minimum values ​​of the evaluation information to be displayed in the image. The graphic determination unit 170 determines the color of each evaluation graphic so that the evaluation graphic corresponding to the extracted maximum value is displayed in the first color and the evaluation graphic corresponding to the extracted minimum value is displayed in the second color.

[0033] In step S130, the image information generation unit 180 determines the position of the evaluation graphic in the display image based on the position information 460 included in the operation information. The image information generation unit 180 acquires the position where the operation information corresponding to the evaluation graphic was measured from the position information 460. The image information generation unit 180 places the evaluation graphic in the display image at a position corresponding to the position indicated by the position information 460. For example, when the display image shows an image in which an evaluation graphic is placed on a map, the evaluation graphic is placed at the position indicated on the map by the position indicated by the position information 460.

[0034] 6, the image information generating unit 180 positions the evaluation graphic 470 so that the geometric center of the evaluation graphic 470 is at the position represented by the position information 460. For example, when the evaluation graphic 470 is circular, the center of the circle of the evaluation graphic 470 corresponds to the position represented by the position information 460.

[0035] In step S140 shown in FIG. 5, the image information generation unit 180 determines the display format, such as the transparency, of the evaluation graphic 470 based on the speed of the operating device 30 included in the operation information. When the speed of the operating device 30 is slow, the distance between the positions represented by two temporally adjacent pieces of position information 460 becomes narrower, as shown in FIG. 7. Therefore, the slower the speed of the operating device 30, the larger the area where one evaluation graphic 470 overlaps with another evaluation graphic 470, making it difficult for the user to see the evaluation information. Therefore, the image information generation unit 180 determines the display format, such as the transparency, of the evaluation graphic 470 based on the speed of the operating device 30. For example, the image information generation unit 180 increases the transparency of the evaluation graphic 470 as the speed of the operating device 30 decreases.

[0036] For example, the image information generation unit 180 determines the transparency using the speed measured based on the force transmitted from the prime mover 31 to the traveling unit 32 of the working device 30. For example, the image information generation unit 180 may determine the transparency of the evaluation graphic 470 corresponding to each evaluation information piece based on the maximum and minimum speed values ​​of the working device 30 in the operation information corresponding to the evaluation information displayed in the image. For example, in the initial state, a first transparency value corresponding to the maximum speed of the working device 30 and a second transparency value corresponding to the minimum speed of the working device 30 are predetermined as the transparency range of the evaluation graphic 470. The image information generation unit 180 extracts the maximum and minimum speed values ​​in the operation information corresponding to the evaluation information displayed in the image. The image information generation unit 180 determines the transparency of each evaluation graphic 470 so that the evaluation graphic 470 corresponding to the extracted maximum value is displayed with the first transparency value and the evaluation graphic 470 corresponding to the extracted minimum value is displayed with the second transparency value. For example, the image information generating unit 180 determines the transparency of each evaluation graphic 470 so that the transparency of the evaluation graphic 470 decreases monotonically with the speed of the working device 30. The image information generating unit 180 may determine the transparency of the evaluation graphic 470 so that the transparency decreases as a linear function with respect to the speed of the working device 30, or may determine the transparency of the evaluation graphic 470 so that the transparency decreases in stages as a step function.

[0037] 5, the image information generating unit 180 generates image information representing a display image that displays the determined evaluation graphic 470. The image information includes, for example, information representing the evaluation graphic 470, such as color, shape, and transparency, and information representing the position where the evaluation graphic 470 is to be placed. When the image information represents a map including the area of ​​the field 400, the image information includes information representing the position where the evaluation graphic 470 is to be placed on the map.

[0038] Furthermore, when an evaluation graphic 470 overlaps another evaluation graphic 470, the image information generation unit 180 determines the priority of the overlapping evaluation graphic 470 and associates the priority with the evaluation graphic 470 and includes the priority in the image information. The priority indicates the order in which the evaluation graphic 470 is displayed on the map, with evaluation graphics 470 with higher priorities being displayed higher. For example, if the transparency of the evaluation graphic 470 is "0," e.g., if the evaluation graphic 470 is not transparent, the evaluation graphic 470 with the highest priority is displayed in an area in the display image where multiple evaluation graphics 470 overlap. For example, the priority may be determined to be higher the later the time the operation information corresponding to the evaluation graphic 470 was measured, or may be determined to be lower the later the measurement time. Furthermore, the priority may be determined to be higher the higher the evaluation value of the operation information corresponding to the evaluation graphic 470. The image information generation unit 180 outputs the generated image information to the terminal 200.

[0039] In step S160, display unit 250 of terminal 200 acquires image information from image information generation unit 180 of work management apparatus 100 and displays a display image represented by the image information. The display image may include an operation area 500 for changing the display, as shown in Fig. 8. For example, operation area 500 includes a shape expansion / contraction button 510, a transparency change button 520, a display information change button 530, and an evaluation information selection button 540.

[0040] The graphic stretch button 510 is selected when changing the size of the evaluation graphic 470. When the graphic stretch button 510 is selected, the display unit 250 receives information indicating the size of the evaluation graphic 470 to be displayed. For example, when the graphic stretch button 510 is selected, the display unit 250 displays selectable sizes of the evaluation graphic 470. For example, when the evaluation graphic 470 is circular, the display unit 250 displays the selectable radii of the evaluation graphic 470. For example, the radii of the evaluation graphic 470 may represent lengths on the map, such as "2 meters," "3 meters," "5 meters," and "10 meters." Furthermore, the sizes of the evaluation graphic 470 may display multiple levels of size, such as "large," "medium," and "small." The user selects the size of the displayed evaluation graphic 470. The display unit 250 changes the size of the evaluation graphic 470 according to the size of the selected evaluation graphic 470.

[0041] The transparency change button 520 is selected when changing the transparency of the evaluation graphic 470. When the transparency change button 520 is selected, the display unit 250 accepts the degree of transparency of the evaluation graphic 470 to be displayed. For example, when the transparency change button 520 is selected, the display unit 250 displays selectable transparency levels of the evaluation graphic 470. For example, the transparency of the evaluation graphic 470 displays multiple transparency levels, such as "high," "medium," and "low." When the transparency level of the evaluation graphic 470 is selected, the display unit 250 changes the transparency of the evaluation graphic 470 to a transparency level corresponding to the selected transparency level. For example, a range of transparency levels for displaying the evaluation graphic 470 is predetermined depending on the transparency level.

[0042] For example, when the transparency level is "high," a third transparency level of the evaluation graphic 470 representing the maximum speed and a fourth transparency level of the evaluation graphic 470 representing the minimum speed are predetermined. When the transparency level is "medium," a fifth transparency level of the evaluation graphic 470 representing the maximum speed and a sixth transparency level of the evaluation graphic 470 representing the minimum speed are predetermined. When the transparency level is "low," a seventh transparency level of the evaluation graphic 470 representing the maximum speed and an eighth transparency level of the evaluation graphic 470 representing the minimum speed are predetermined.

[0043] In this case, when a transparency level representing "high" is selected, the display unit 250 changes the transparency of each evaluation graphic 470 so that the evaluation graphic 470 corresponding to the maximum speed is displayed at a third transparency level and the evaluation graphic 470 corresponding to the minimum speed is displayed at a fourth transparency level. Similarly, when a transparency level representing "medium" is selected, the display unit 250 changes the transparency of each evaluation graphic 470 so that the evaluation graphic 470 corresponding to the maximum speed is displayed at a fifth transparency level and the evaluation graphic 470 corresponding to the minimum speed is displayed at a sixth transparency level. When a transparency level representing "low" is selected, the display unit 250 changes the transparency of each evaluation graphic 470 so that the evaluation graphic 470 corresponding to the maximum speed is displayed at a seventh transparency level and the evaluation graphic 470 corresponding to the minimum speed is displayed at an eighth transparency level.

[0044] Here, the third transparency is set higher than the fifth transparency, and the background image in the evaluation graphic 470 with the third transparency is displayed more clearly than the background image in the evaluation graphic 470 with the fifth transparency. Furthermore, the fifth transparency is set higher than the seventh transparency, and the background image in the evaluation graphic 470 with the fifth transparency is displayed more clearly than the background image in the evaluation graphic 470 with the seventh transparency. Furthermore, the fourth transparency may be set higher than the sixth transparency or may be the same as the sixth transparency. The sixth transparency may be set higher than the eighth transparency or may be the same as the eighth transparency.

[0045] The display information change button 530 shown in FIG. 8 is selected when changing the operation information corresponding to the evaluation information displayed in the display image. For example, when the display information change button 530 is selected, the display unit 250 receives condition information that indicates the conditions for the operation information to be displayed. For example, when the display information change button 530 is selected, the display unit 250 receives condition information that indicates the period during which the maintenance device 30 performed the work, corresponding to the evaluation information to be displayed in the display image. The user inputs the period during which the maintenance device 30 performed the work to the input / output device 210. The display unit 250 outputs the acquired condition information to the work management apparatus 100. The information extraction unit 160 of the work management apparatus 100 extracts operation information measured during the period indicated in the condition information. The work management apparatus 100 performs the processes from step S120 onward shown in FIG. 5 on the extracted operation information. As a result, the display unit 250 displays a display image corresponding to the input period.

[0046] The evaluation information selection button 540 shown in FIG. 8 is selected when changing the displayed evaluation information to information included in the operation information, such as the amount of work, the speed of the operation apparatus 30, or the fuel consumption of the operation apparatus 30. For example, when the evaluation information selection button 540 is selected, the display unit 250 accepts the type of information to be displayed as evaluation information, such as the amount of work, the speed of the operation apparatus 30, or the like. For example, when the evaluation information selection button 540 is selected, the display unit 250 displays the type of information included in the operation information. The user inputs the type of information to be displayed as evaluation information from the displayed types of information to the input / output device 210. The display unit 250 outputs selection information indicating the input type of information to the work management apparatus 100. The work management apparatus 100 executes the process shown in FIG. 5 based on the selection information. In this case, in step S120, the shape determination unit 170 uses the type of information indicated in the selection information as evaluation information. As a result, the display unit 250 displays a display image indicating evaluation information related to the input type of information.

[0047] (Variation) The configuration described in the embodiment is merely an example, and the configuration may be modified without impairing functionality. While the work management system 1000 displays one evaluation graphic 470 for one piece of operation information as shown in FIG. 6 , this is not limiting. For example, the work management system 1000 may display one evaluation graphic 470 for multiple pieces of operation information as shown in FIG. 9 . For example, when the scale of the map displayed in the display image is small, the display unit 250 of the terminal 200 displays one evaluation graphic 470 for multiple pieces of operation information. For example, as shown in FIG. 9 , the display unit 250 displays one first evaluation graphic 470-1 for the operation information corresponding to the first location information 460-1, the operation information corresponding to the second location information 460-2, and the operation information corresponding to the third location information 460-3. In this case, the display unit 250 may display the first evaluation graphic 470-1 so that the center position of the evaluation graphic 470 is the position represented by one of the corresponding pieces of operation information. For example, the display unit 250 may display the first evaluation graphic 470-1 so that the center position of the first evaluation graphic 470-1 is the second position information 460-2, which is the chronologically center of the corresponding multiple pieces of operation information. Furthermore, the display unit 250 may display the first evaluation graphic 470-1 so that the center position of the first evaluation graphic 470-1 is the first position information 460-1, which is the chronologically first of the corresponding multiple pieces of operation information. The display unit 250 may display the first evaluation graphic 470-1 so that the center position of the first evaluation graphic 470-1 is the third position information 460-3, which is the chronologically last of the corresponding multiple pieces of operation information. Furthermore, the center position of the evaluation graphic 470 may be the geometric center of the positions represented by the corresponding multiple pieces of operation information.

[0048] Furthermore, when one evaluation graphic 470 is displayed for multiple pieces of operation information, the color of the evaluation graphic 470 may be the color of the evaluation graphic 470 corresponding to one of the pieces of operation information. For example, the display unit 250 may use, as the color of the first evaluation graphic 470-1, the color of the evaluation graphic 470 corresponding to the operation information of the second position information 460-2, which is chronologically central among the corresponding pieces of operation information. Furthermore, the display unit 250 may use, as the color of the first evaluation graphic 470-1, the color of the evaluation graphic 470 corresponding to the operation information of the first position information 460-1, which is chronologically first among the corresponding pieces of operation information, or the color of the evaluation graphic 470 corresponding to the operation information of the third position information 460-3, which is chronologically last among the corresponding pieces of operation information. Furthermore, the color of the evaluation graphic 470 may be a color corresponding to the average value of the evaluation information in the corresponding pieces of operation information.

[0049] When the value represented by the evaluation information is "0," the graphic determination unit 170 may exclude the corresponding evaluation information. For example, in step S120 shown in FIG. 5, the graphic determination unit 170 excludes, as excluded operation information, operation information whose evaluation information represents a value of "0" from the plurality of pieces of operation information for which evaluation information is to be displayed. For example, the graphic determination unit 170 excludes the excluded operation information from the field operation information to determine the evaluation graphic 470 representing the evaluation information. Furthermore, when the value represented by the evaluation information is not included in a predetermined range, the graphic determination unit 170 may determine, as excluded operation information, the operation information corresponding to this evaluation information. In this case, the predetermined range is determined in advance according to the evaluation information.

[0050] Although the example in which the graphic determination unit 170 determines the color of the evaluation graphic 470 based on the value represented by the evaluation information has been described, the present invention is not limited to this. For example, the pattern representing the area of ​​the evaluation graphic 470 may differ depending on the value represented by the evaluation information. Furthermore, the size of the evaluation graphic 470 may differ depending on the value of the evaluation information.

[0051] In the above example, the transparency of the evaluation graphic 470 is determined using a speed measured based on the force transmitted from the prime mover 31 to the traveling unit 32 of the working device 30 in the corresponding operation information. However, the present invention is not limited to this example. The transparency of the evaluation graphic 470 may also be determined using a speed calculated based on the corresponding position information 460. For example, the image information generation unit 180 calculates the distance from the position of the corresponding position information 460 to the position of the position information 460 that is temporally adjacent to the corresponding position information 460. The image information generation unit 180 calculates the speed by dividing the calculated distance by the time difference between the time when the corresponding position information 460 was measured and the time when the position information 460 that is temporally adjacent to the corresponding position information 460 was measured. The image information generation unit 180 may determine the transparency of the evaluation graphic 470 using the calculated speed.

[0052] The size of the evaluation graphic 470 may also vary depending on the speed of the operating device 30. For example, the image information generation unit 180 may reduce the size of the evaluation graphic 470 as the speed of the operating device 30 decreases. For example, when the evaluation graphic 470 is circular, the image information generation unit 180 reduces the radius of the evaluation graphic 470 as the speed of the operating device 30 decreases. This reduces the area where the evaluation graphic 470 overlaps with other evaluation graphics 470, even if the speed of the operating device 30 is slow.

[0053] 10, the evaluation graphic 470 may be deformed so that its length in the direction of travel of the operating device 30 is shortened in accordance with the speed of the operating device 30. For example, the image information generator 180 may deform the evaluation graphic 470 so that the length of the evaluation graphic 470 is shortened as the speed of the operating device 30 in the direction of travel of the operating device 30 decreases. This reduces the area where the evaluation graphic 470 overlaps with other evaluation graphics 470, even if the speed of the operating device 30 is slow.

[0054] The work management apparatus 100 may include information determined based on the operation information acquired from the work apparatus 30 in the operation information. For example, the information extraction unit 160 of the work management apparatus 100 may determine the type of work performed in the field 400 by the work apparatus 30, such as planting, pesticide spraying, or harvesting, based on the operation information acquired from the work apparatus 30. The information extraction unit 160 may include the determined type of work in the operation information.

[0055] The above-described embodiments and modifications are merely examples, and the configurations described in each embodiment and modification may be arbitrarily modified 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 are realized. For example, the work management system 1000 shown in FIG. 1 does not need to include the terminal 200. Furthermore, all or part of the processing of the work management device 100 may be executed by the terminal 200. Furthermore, all or part of the processing of the terminal 200 may be executed by the work management device 100. Furthermore, the work management program 310 may include a display program 320. Furthermore, the time indicated in the operation information may be a predetermined reference time, for example, the time elapsed since the time the work device 30 was started.

[0056] The display unit 250 may display evaluation information for all of the multiple pieces of operation information acquired by the calculation device 120 of the work management apparatus 100. In this case, the information extraction unit 160 shown in Fig. 4 may be omitted. Similarly, the processing of step S110 shown in Fig. 5 may be omitted.

[0057] Furthermore, the display unit 250 does not need to change the display form of the evaluation graphic 470 in accordance with the speed of the working device 30. In this case, the process of step S140 shown in FIG.

[0058] Furthermore, the evaluation graphic 470 is not limited to a circular shape, but may be any shape. [Explanation of symbols]

[0059] 1, 2: Storage medium 20: Network 30: Work equipment 31: Prime mover 32: Running part 33: Communication equipment 100: Work management device 110: Input / output device 120: Arithmetic device 130: Communication equipment 140: Storage device 150: Data storage unit 160: Information extraction section 170: Shape determination unit 180: Image information generation unit 200: Terminal 210: Input / output device 220: Arithmetic device 230:Communication equipment 240: Storage device 250:Display section 300: Field data 310: Work Management Program 320: Display program 400: Field 450: Orbit 460: Location information 470: Evaluation diagram 500: Operation area 510: Shape stretch button 520: Transparency change button 530: Display information change button 540: Evaluation information selection button 1000: Work management system

Claims

1. determining a first evaluation graphic representing first evaluation information included in operation information relating to work performed in a field by the work implement; determining a position at which the first evaluation graphic is to be placed in a first display image representing the first evaluation information based on a position at which the operation information is measured; generating image information representing the first display image in which the first evaluation figure is arranged; Work management methods including:

2. Determining the first evaluation figure includes: determining a color of the first evaluation figure according to the first evaluation information; The work management method according to claim 1 , further comprising:

3. determining a display form of the first evaluation graphic based on the speed of the work device included in the operation information; The work management method according to claim 1 or 2, further comprising:

4. Determining the display form of the first evaluation figure includes: The transparency of the first evaluation graphic is determined to be higher as the speed of the working device included in the operation information is lower. The work management method according to claim 3, further comprising:

5. Determining the display form of the first evaluation figure includes: The size of the first evaluation figure is determined to be smaller as the speed of the work device included in the operation information is smaller. The work management method according to claim 3, further comprising:

6. Determining the first evaluation figure includes: determining one of the first evaluation figures representing the first evaluation information included in the plurality of pieces of operation information; Including, Determining the position at which the first evaluation figure is to be placed includes: determining a position at which the one first evaluation figure is to be placed based on a plurality of positions at which the plurality of pieces of operation information are measured; The work management method according to any one of claims 1 to 5, further comprising:

7. receiving condition information representing a condition of the operation information corresponding to the first evaluation information; extracting the operation information that satisfies the condition information; Including, Determining the first evaluation figure includes: determining the first evaluation graphic representing the first evaluation information included in the extracted operation information; The work management method according to any one of claims 1 to 6, comprising:

8. receiving a type of evaluation information that is included in the operation information and that is different from the first evaluation information; determining a second evaluation graphic representing second evaluation information corresponding to the received type; determining a position at which the second evaluation figure is to be placed in a second display image representing the second evaluation information based on a position at which the operation information is measured, and generating image information representing the second display image in which the second evaluation figure is placed; The work management method according to any one of claims 1 to 7, comprising:

9. a graphic determination unit that determines a first evaluation graphic that represents first evaluation information included in operation information related to work performed in a field by the work device; an image information generating unit that determines a position at which the first evaluation figure is to be placed in a first display image representing the first evaluation information based on a position at which the operation information is measured, and generates image information representing the first display image in which the first evaluation figure is placed; A work management system comprising:

10. determining a first evaluation graphic representing first evaluation information included in operation information relating to work performed in a field by the work implement; determining a position at which the first evaluation graphic is to be placed in a first display image representing the first evaluation information based on a position at which the operation information is measured; generating image information representing the first display image in which the first evaluation figure is arranged; A work management program that causes a computing device to execute the above.

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