Work management methods, work management systems, and work management programs

Abstract

Users can efficiently perform various management tasks, including maintenance of work equipment. [Solution] The work management method includes determining the high-load time during the first work in the field 500, based on the operating information of the work device 30, during the work device 30. The work management method also includes determining whether the first work performed on the crops cultivated in the work area 620 is a high-load crop work, which represents work on high-load crops that require high-load work, based on the high-load time and the operating time of the work device 30 during the first work. Determining whether the first work is a high-load crop work may include determining that the first work is a high-load crop work when the conditions are met, including the ratio of the high-load time to the operating information of the work device 30 being equal to or greater than a first threshold.

Description

Technical Field

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

Background Art

[0002] In a work device that performs work in a field, the maintenance time is set based on the total operation time.

[0003] For example, Patent Document 1 discloses a technique for setting the maintenance time based on a virtual operation time obtained by comparing the usage status of a work device with the usage status of other work devices of the same type and correcting the total operation time.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the magnitude of the load on the work device may depend on the crop being cultivated. For example, the load on a work device for threshing increases as the threshability of the target crop becomes more difficult. Also, the greater the yield per unit area, i.e., the inverse yield, the greater the load on the work device for harvesting. Thus, the load on the work device may depend on the crop that is the object of the work performed by the work device, and thus on the field in which the crop is cultivated. Therefore, depending on whether the work performed in the field by the work device is work on a high-load crop that requires high-load work, the degree of deterioration of the work device may vary. Also, information on whether the work is high-load work is useful not only for estimating the degree of deterioration of the work device but also for other management, such as managing the load on the operator.

[0006] In light of the above circumstances, one of the objectives of this disclosure is to improve the efficiency of various management processes, including maintenance of the work equipment, by determining whether the work performed by the work equipment is for high-load crops that require high-load work. Other objectives can be understood from the following description and the description of the embodiments. [Means for solving the problem]

[0007] The means for solving the problem are described below using the numbers and symbols used in the embodiments for carrying out the invention. These numbers and symbols are added in parentheses for reference to show an example of the correspondence between the claims and the embodiments for carrying out the invention. Therefore, the claims should not be interpreted restrictively because of the parenthetical statements.

[0008] A work management method according to one embodiment for achieving the above objective includes determining the high-load time during the first operation in the field (500) based on the operating information of the work device (30) during the high-load operation of the work device (30). The work management method also includes determining, based on the high-load time and the operating time of the work device (30) during the first operation, that the first operation performed on the crops cultivated in the work area (620) where the first operation was performed is a high-load crop operation, representing an operation on a high-load crop that requires high-load operation.

[0009] A work management method according to one embodiment for achieving the above objective includes determining a statistical value of the speed of the work device (30) based on the operating information of the work device (30) during the first work in the field (500). The work management method also includes determining whether the first work on the crops cultivated in the work area (620) where the first work was performed is a high-load crop work, which represents work on high-load crops that require high-load work, based on the ratio of the yield per hectare in the work area (620) where the first work was performed to the statistical value.

[0010] A work management system (1000) according to one embodiment for achieving the above objective comprises a time determination unit (150) and a determination unit (170). The time determination unit (150) determines the high-load time during the first work in the field (500) based on the operating information of the work device (30) during the work device (30) is working at a high load. The determination unit (170) determines, based on the high-load time and the operating time of the work device (30) during the first work, whether the first work performed on the crops cultivated in the work area (620) where the first work was performed is a high-load crop work, which represents work on high-load crops that require high-load work.

[0011] A work management system (1000) according to one embodiment for achieving the above objective comprises a speed determination unit (155) and a determination unit (170). The speed determination unit (155) determines a statistical value of the speed of the work device (30) based on the operating information of the work device (30) during the first work in the field (500). The determination unit (170) determines whether the first work on the crops cultivated in the work area (620) where the first work was performed is a high-load crop work, which represents work on high-load crops that require high-load work, based on the ratio of the yield per hectare in the work area (620) where the first work was performed to the statistical value.

[0012] A work management program (410) according to one embodiment for achieving the above objective causes the calculation unit (120, 220) to determine the high-load time during the first operation in the field (500) based on the operation information of the work device (30) during the operation of the work device (30). The work management program (410) also causes the calculation unit (120, 220) to determine, based on the high-load time and the operation time of the work device (30) during the first operation, that the first operation performed on the crops cultivated in the work area (620) where the first operation was performed is a high-load crop operation, which represents an operation on a high-load crop that requires high-load operation.

[0013] A work management program (410) according to one embodiment for achieving the above objective causes the calculation unit (120, 220) to determine a statistical value of the speed of the work device (30) based on the operating information of the work device (30) during the first work in the field (500). The work management program (410) also causes the calculation unit (120, 220) to determine whether the first work on the crops cultivated in the work area (620) is a high-load crop work, which represents work on high-load crops that require high-load work, based on the ratio of the yield per hectare in the work area (620) where the first work was performed to the statistical value. [Effects of the Invention]

[0014] According to the above configuration, users can use information on whether or not the work performed by the work device constitutes high-load crop work, thereby enabling efficient management of various aspects of the work device, including maintenance. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram of a work management system in one embodiment. [Figure 2] This is a diagram illustrating the positioning location measured in a work device according to one embodiment. [Figure 3] This figure illustrates the display information representing high-load crop work displayed by a terminal in one embodiment. [Figure 4] This figure illustrates high-load information displayed by a terminal in one embodiment to prompt the user to perform maintenance. [Figure 5] This is a diagram illustrating high-load information displayed by a terminal in one embodiment. [Figure 6] This diagram shows the configuration of a work management device in one embodiment. [Figure 7] This is a diagram showing the structure of field data in one embodiment. [Figure 8] This diagram shows a functional block that is executed by a work management system in one embodiment. [Figure 9] This is a diagram showing the configuration of a terminal in one embodiment. [Figure 10] This is a flowchart showing the process in which a work management system in one embodiment determines whether the work of a work device is high-load crop work. [Figure 11] This is a flowchart showing the process in which a work management system in one embodiment displays high-load information for prompting maintenance of a work device. [Figure 12] This is a diagram showing functional blocks executed by a work management system in one embodiment. [Figure 13] This is a flowchart showing the process in which a work management system in one embodiment determines whether the work of a work device is high-load crop work.

Embodiments for Carrying Out the Invention

[0016] (Embodiment 1) The 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 device 100 and a terminal 200. The work management device 100 is communicably connected to a work device 30 and the terminal 200 via a network 20, for example, the Internet.

[0017] The work device 30 performs work such as harvesting crops while moving in a field 500, for example. For example, the work device 30 may include a combine or the like formed integrally with a work machine. The work device 30 has a positioning device that measures the position of the device itself at each moment, for example, latitude and longitude. The positioning device may include, for example, a receiver of GNSS (Global Navigation Satellite System), a quantum compass, etc., and measures the position of the device itself at a predetermined interval (for example, an interval of 1 second). For example, as shown in FIG. 2, the work device 30 performs work while moving along a movement path 600 within the field 500. In this case, the positioning position 610 measured by the positioning device of the work device 30 represents a position on the movement path 600.

[0018] Furthermore, the working device 30 acquires status information representing the speed of the working device 30, steering angle, engine speed, engine load ratio, and the ON / OFF status of various clutches at each time point. The status information may also represent the yield of crops harvested between each time point. For example, the yield represented in the status information represents the amount of crops harvested when the measured time point moved between adjacent positioning positions 610. For example, the working device 30 acquires status information when it measures its own position using a measuring device. The working device 30 may also acquire status information at predetermined intervals (e.g., every second) regardless of the measurement of its own position by the measuring device. The status information may also include information representing the time at which it was acquired.

[0019] The work device 30 outputs operational information, including position information representing the positioning location 610 and the measured time, and status information, to the work management device 100.

[0020] The work management device 100 determines, based on the operation information of the work device 30, whether or not the work performed by the work device 30 is high-load crop work. For example, the work management device 100 determines whether or not a single operation performed by the work device 30 from the time it is started until it is stopped is high-load crop work. Here, high-load crop work refers to high-load work performed on a high-load crop that requires high-load work. For example, high-load crop work refers to high-load work performed on a high-load crop that is in a state where it requires high-load work. For example, even if the work is performed on the same "rice," harvesting lodged "rice" may be considered high-load crop work, while harvesting "rice" that has not lodged may not be considered high-load crop work.

[0021] Furthermore, the work management device 100 determines the total area of ​​the work area 620 in which each work device 30 has performed high-load crop work during a predetermined period (for example, the most recent year). A work device 30 that has performed high-load crop work in a large area may be more deteriorated than other work devices 30. For this reason, as shown in Figure 4, the terminal 200 displays information representing the total area of ​​high-load crop work performed by the work devices 30, in a way that allows comparison with a reference value 700. The reference value 700 represents, for example, the area of ​​high-load crop work that serves as a standard for recommending maintenance. Based on the total area of ​​high-load crop work performed by the work devices 30, the user can more easily consider when to perform maintenance on the work devices 30. In addition, if the total area of ​​high-load crop work is greater than the reference value 700, the work management device 100 may recommend maintenance of that work device 30 to the user. When the user has multiple work devices 30, information representing the total area of ​​high-load crop work performed by the multiple work devices 30 may be displayed, as shown in Figure 5.

[0022] Furthermore, users who own multiple Field 500s can determine the amount of money to pay for work performed on Field 500 based on the proportion of high-load crop work relative to the time spent on the work.

[0023] As described above, by using the results of the determination of whether or not a crop operation is high-load, users can improve the efficiency of various management tasks, including maintenance.

[0024] (Configuration of the work management system) The configuration of the work management device 100 included in the work management system 1000 shown in Figure 1 will be described. As shown in Figure 6, the work management device 100 comprises an input / output device 110, an arithmetic unit 120, a communication device 130, and a storage device 140. The work management device 100 is a computer, for example, a cloud server. Information for the arithmetic unit 120 to perform processing is input to the input / output device 110. The input / output device 110 also outputs the results of the processing performed by the arithmetic unit 120. The input / output device 110 may include various input and output devices, such as a keyboard, mouse, microphone, display, speaker, touch panel, etc. The input / output device 110 may be omitted.

[0025] The communication device 130 is connected to the network 20 and communicates with each device via the network 20. For example, the communication device 130 transfers information acquired from the work device 30 to the arithmetic unit 120. The communication device 130 also transfers signals generated by the arithmetic unit 120 to the terminal 200. The communication device 130 may include various interfaces such as a NIC (Network Interface Card) and a USB terminal.

[0026] The storage device 140 stores various data, such as work data 400, and a work management program 410, for determining whether the work performed by the work device 30 is high-load crop work. The storage device 140 is used as a non-transitory tangible storage medium for storing the work management program 410. The work management program 410 may be provided as a computer program product recorded on a computer-readable storage medium 1, or as a computer program product downloadable from a server.

[0027] As shown in Figure 7, the work data 400 stores work information 401 related to the work performed by the work device 30. For example, the work information 401 is represented for each individual work. For example, the work information 401 represents the work device 30 that performed the work, the work area 620 in which the work was performed, the type of crop being worked on, the work time, the work area, and whether or not the work is a high-load crop operation. For example, the work information 401 includes information representing the work device 30 that performed the work (e.g., model, identification code, or a combination thereof). The work area 620 represents the area in which work was performed in a single operation and represents the geographical extent of the area in which work was performed (e.g., location and shape). For example, the work area 620 may represent the area in which work was performed as a polygon, and represent the position of each vertex of the polygon (e.g., latitude and longitude) and the other vertices adjacent to each vertex along the outer perimeter of the polygon. The type of crop being worked on represents the type of crop cultivated in the area in which work was performed, for example, "rice," "buckwheat," "wheat," etc. The work time represents the time required for the work, and the work area represents the area over which the work was performed. Furthermore, in the example shown in Figure 7, the first work information 401-1 and the second work information 401-2 indicate that the work is a high-load crop operation, while the third work information 401-3 indicates that the work is not a high-load crop operation. Note that the work information 401 is determined, for example, based on the operating information of the work device 30.

[0028] The arithmetic unit 120 shown in Figure 6 reads and executes the work management program 410 from the storage device 140 and performs various data processing to determine whether the work performed by the work device 30 is high-load crop work or not. For example, the arithmetic unit 120 may include a central processing unit (CPU).

[0029] The arithmetic unit 120 reads and executes the work management program 410, and in cooperation with the storage device 140, realizes the time determination unit 150, the judgment condition determination unit 160, the determination unit 170, the output unit 180, and the load information output unit 190, as shown in Figure 8. The time determination unit 150 determines the high-load time, which represents the time the work device 30 is performing work at a high load, based on the operation information of the work device 30. The time determination unit 150 may also determine the high-speed time, which represents the time the work device 30 is moving at a high speed, based on the operation information of the work device 30. The judgment condition determination unit 160 determines the judgment conditions for determining high-load crop work according to the type of crop being cultivated in the area where the work device 30 is performing work. The determination unit 170 determines whether the work performed by the work device 30 is high-load crop work, based on the operation information of the work device 30. The output unit 180 outputs display information representing high-load crop work. The load information output unit 190 outputs information regarding the maintenance of the work device 30 based on the area over which the work device 30 performed high-load crop work.

[0030] Next, the configuration of the terminal 200 shown in Figure 1 will be described. As shown in Figure 9, the terminal 200 comprises an input / output device 210, an arithmetic unit 220, a communication device 230, and a storage device 240. The terminal 200 may include, for example, a computer, a tablet, or a mobile phone. The input / output device 210 receives information for the arithmetic unit 220 to perform processing. The input / output device 210 also outputs the results of the processing performed by the arithmetic unit 220. The input / output device 210 may include various input and output devices, such as a keyboard, mouse, microphone, display, speaker, and touch panel.

[0031] The communication device 230 is connected to the network 20 and communicates with each device via the network 20. For example, the communication device 230 transfers display information obtained from the work management device 100 to the arithmetic unit 220. The communication device 230 also transfers signals generated by the arithmetic unit 220 to the work management device 100. The communication device 230 may output information to other devices not connected via the network 20, or it may obtain information from other devices. For example, the communication device 230 may obtain information from other devices via any storage medium, such as a memory card or USB (Universal Serial Bus) memory. Alternatively, the communication device 230 may obtain information from other devices directly connected via a USB terminal or the like. The communication device 230 may include various interfaces such as transceivers used for wireless communication, such as wireless LAN (Local Area Network) or cellular networks, NICs (Network Interface Cards), and USB terminals.

[0032] The storage device 240 stores various data for displaying display information acquired from the work management device 100, such as a display program 420. The storage device 240 is used as a non-transitory tangible storage medium for storing the display program 420. The display program 420 may be provided as a computer program product recorded on a computer-readable storage medium 2, or as a computer program product downloadable from a server.

[0033] The arithmetic unit 220 reads and executes the display program 420 from the storage device 240 and performs various data processing to display the display information. For example, the arithmetic unit 220 may include a central processing unit (CPU).

[0034] The arithmetic unit 220 reads and executes the display program 420, and in cooperation with the storage device 240 and the input / output device 210, as shown in Figure 8, realizes the display unit 250. The display unit 250 displays the display information acquired from the work management device 100.

[0035] (Operation of the work management system) The operation of the work management system 1000 will be explained. First, the operation of determining whether the work performed by the work device 30 is high-load crop work will be explained. For example, when the work device 30 performs work in the field 500, it measures its own position at each time. The work device 30 also acquires status information at each time. The position information representing the measured position and time, and the status information are output to the work management system 100 as operation information. When the work device 30 stops, it outputs all the operation information acquired from start to stop. Alternatively, the work device 30 may output operation information sequentially.

[0036] When the arithmetic unit 120 of the work management device 100 receives operational information from the work device 30, it reads and executes the work management program 410 from the storage device 140. Once the work management program 410 is executed, the arithmetic unit 120 starts the work management method shown in Figure 10.

[0037] In step S110, the time determination unit 150, implemented by the arithmetic unit 120, extracts operational information from among multiple operational information acquired from the work device 30. For example, the time determination unit 150 extracts operational information from the operational information of the work device 30 when the work device 30 is performing work, using any method. For example, the time determination unit 150 extracts operational information from the operational information of the work device 30 when the speed of the work device 30 falls within the speed range when it is performing work. Alternatively, the time determination unit 150 may extract operational information representing the positioning location 610 within the field 500 as operational information when the work device 30 is performing work.

[0038] In step S120, the time determination unit 150 determines the work area 620 based on the positioning positions 610 represented in the extracted operational information. For example, the time determination unit 150 determines the area encompassing all positioning positions 610 represented in the extracted operational information as the work area 620. The time determination unit 150 may determine the area encompassing all positioning positions 610 in any way. For example, the time determination unit 150 determines the convex hull for all corresponding positioning positions 610 as the work area 620. Here, the convex hull includes all corresponding positioning positions 610 and represents the smallest convex polygon. Alternatively, the time determination unit 150 may determine the concave hull for multiple positioning positions 610 as the work area 620. For example, the concave hull may be formed by any algorithm, and may represent, for example, the alpha shape for multiple positioning positions 610.

[0039] Furthermore, the time determination unit 150 may determine the work area 620 as an expanded region of the convex or concave hull, depending on the work width of the work device 30. For example, the time determination unit 150 may determine the work area 620 as an expanded region of half the work width from the contour of the convex or concave hull. The work width represents the length in the direction perpendicular to the direction of travel in the area where work is performed when the work device 30 moves in the direction of travel.

[0040] The time determination unit 150 further determines the area of ​​the determined work area 620 as the work area representing the area in which work was performed by the work device 30.

[0041] In step S130, the determination condition unit 160 determines the type of crop harvested by the work device 30 based on the operation information of the work device 30. For example, the determination condition unit 160 determines the type of crop harvested based on the time of harvesting by the work device 30, such as the time shown in the operation information or the time when the operation information was received from the work device 30. For example, the determination condition unit 160 holds information representing the type of crop corresponding to the time of harvesting, identifies the type of crop from the held information according to the time when the work device 30 harvested the crop, and determines the identified type of crop as the type of crop harvested. For example, the determination condition unit 160 determines that the type of crop harvested is "wheat" when the work device 30 is harvesting crops in May.

[0042] Furthermore, the determination condition unit 160 may determine the type of crop harvested based on the time of harvesting and the region in which it was harvested by the work device 30. For example, the determination condition unit 160 holds information representing the type of crop corresponding to the time of harvesting and the region, and determines the type of crop harvested from the information it holds according to the time of harvesting and the region in which it was harvested by the work device 30. For example, the determination condition unit 160 determines that the type of crop harvested is "wheat" when the work device 30 is harvesting crops in Hokkaido in July. Also, the determination condition unit 160 determines that the type of crop harvested is "buckwheat" when the work device 30 is harvesting crops in the Chubu region in July. The region in which the work device 30 harvested is determined based on the location information of the work device 30 included in the operation information.

[0043] Furthermore, the determination condition unit 160 may determine the type of crop harvested based on the time of harvesting by the work device 30 and the operation information of the work device 30. For example, the determination condition unit 160 stores the type of crop corresponding to the time of harvesting and at least some of the operation information, and determines the type of crop harvested from the stored information according to the time of harvesting by the work device 30 and the operation information. For example, the determination condition unit 160 determines that the type of crop harvested is "buckwheat" when the rotor rotation speed of the work device 30 is below a threshold, for example, 300 rotations per minute, while harvesting in September. The determination condition unit 160 determines that the type of crop harvested is "rice" when the rotor rotation speed of the work device 30 is above a threshold, for example, 700 rotations per minute, while harvesting in September. Furthermore, the determination condition unit 160 may determine that the type of crop harvested is "buckwheat" when the engine load rate of the work device 30 is below a threshold, for example, 30%, while harvesting in September. The determination condition unit 160 may determine that the type of harvested crop is "rice" when the engine load rate of the work device 30 during harvesting in September is greater than a threshold, for example, 50%.

[0044] Furthermore, the determination condition unit 160 may determine the type of harvested crop based on the operating information of the work device 30. For example, the determination condition unit 160 may maintain a model for determining the type of harvested crop from the operating information. For example, the maintained model may include a learned model (e.g., a neural network) that has been trained to determine the type of harvested crop from the operating information. The determination condition unit 160 may use this model to determine the type of harvested crop from the operating information.

[0045] In step S140, the determination condition unit 160 determines the determination conditions for determining whether the work performed by the work device 30 is high-load crop work, based on the type of crop harvested. For example, whether the work performed by the work device 30 is high-load crop work is determined by comparing a value represented in the operating information of the work device 30, such as the engine load ratio, with a threshold value. In this case, the determination condition unit 160 determines this threshold value based on the type of crop harvested. For example, when determining whether the work performed by the work device 30 is high-load crop work using the engine load ratio and the speed, the determination condition unit 160 determines a load threshold value to be compared with the engine load ratio and a speed threshold value to be compared with the speed. The threshold value to be determined may be set to a less restrictive value for crops that require high-load work. In this case, the more high-load work required for a crop, the higher the probability of satisfying the determination condition.

[0046] For example, the determination condition unit 160 holds information representing a load threshold and a speed threshold corresponding to the type of harvested crop, and determines the load threshold and speed threshold from the held information according to the type of harvested crop. For example, suppose the held information indicates that when the type of harvested crop is "rice," the load threshold compared with the engine load rate is "60%" and the speed threshold compared with the speed is "1.2 m / s (1.2 meters per second)." In this case, the determination condition unit 160 determines that when the type of harvested crop is "rice," the load threshold is "60%" and the speed threshold is "1.2 m / s." Also, suppose the held information indicates that when the type of harvested crop is "wheat," the load threshold is "55%" and the speed threshold is "2.1 m / s." In this case, the determination condition unit 160 determines that when the type of harvested crop is "wheat", the load threshold is "55%" and the speed threshold is "2.1 m / s".

[0047] In this way, the determination condition unit 160 determines one or more thresholds according to the type of crop harvested. The one or more thresholds determined for a certain type of crop (e.g., "rice") may all be different from, partially different and partially the same as, or all the same as, the one or more thresholds determined for another type of crop (e.g., "buckwheat").

[0048] In step S150, the time determination unit 150 uses the load threshold determined by the determination condition determination unit 160 to determine the high-load time during a single operation in which the work device 30 is operating at a high load. The time determination unit 150 may determine the high-load time in a single operation in any way based on the operating information of the work device 30. For example, the time determination unit 150 determines the time during which the work device 30 is operating at an engine load rate equal to or greater than the load threshold as the high-load time. For example, the time determination unit 150 determines the total time during a single operation in which the engine load rate shown in the operating information of the work device 30 is equal to or greater than the load threshold as the high-load time. For example, the time determination unit 150 determines that the time from the start time when the engine load rate becomes equal to or greater than the load threshold to the end time when the engine load rate first falls below the load threshold after the start time is included in the high-load time. The time determination unit 150 determines the total time included in the high-load time during a single operation as the high-load time.

[0049] Furthermore, the time determination unit 150 determines the quantity of operating information from the operating information of the work device 30 in which the engine load ratio exceeds the load threshold. For example, the time determination unit 150 counts the number of positioning positions 610 when the engine load ratio exceeds the load threshold. The time determination unit 150 may also determine the value obtained by multiplying the determined quantity by the measured time interval (e.g., period) as the high load time.

[0050] In step S160, the time determination unit 150 uses the speed threshold determined by the determination condition determination unit 160 to determine the high-speed time during a single operation in which the work device 30 is working at a high speed. The time determination unit 150 may determine the high-speed time during a single operation in any way based on the operating information of the work device 30. For example, the time determination unit 150 determines the time during which the work device 30 is working at a speed equal to or greater than the speed threshold as the high-speed time. For example, the time determination unit 150 determines the total time during a single operation in which the speed represented in the operating information of the work device 30 is equal to or greater than the speed threshold as the high-speed time.

[0051] Furthermore, the time determination unit 150 determines the quantity of operation information from the operation information of the work device 30 in which the speed is equal to or greater than the speed threshold. The time determination unit 150 may also determine the value obtained by multiplying the determined quantity by the measured time interval (e.g., period) as the high-speed time.

[0052] In step S170, the determination unit 170 determines whether the work performed by the work device 30 is high-load crop work based on the high-load time and the high-speed time. For example, the determination unit 170 determines that the work performed by the work device 30 is high-load crop work when it satisfies a first condition using high-load time and a second condition using high-speed time. For example, the first condition represents a condition for an index that shows the ratio of high-load time to the operating time when the work device 30 was working. For example, the first condition includes the ratio of high-load time to the operating time of the work device 30 during work being greater than or equal to a first threshold. In this case, the determination unit 170 determines that the work performed by the work device 30 satisfies the first condition when the value obtained by dividing the high-load time by the operating time of the work device 30 during work is greater than or equal to the first threshold.

[0053] The first threshold is, for example, a predetermined fixed value. For example, the first threshold represents 0.3. Alternatively, the first threshold may be determined according to the type of crop harvested. In this case, the first threshold is determined in step S140 by the determination condition determination unit 160, similar to the load threshold and speed threshold.

[0054] Furthermore, the operating time of the work device 30 is determined based on the time represented in the operating information extracted in step S110. For example, the determination unit 170 determines the operating time to be the time between the first time and the last time represented in the extracted operating information.

[0055] The second condition represents, for example, a condition for an index that expresses the ratio of high-speed time to high-load time. For example, the second condition includes the ratio of high-speed time to high-load time being less than or equal to the second threshold. In this case, the determination unit 170 determines that the work of the work device 30 satisfies the second condition when the value obtained by dividing high-speed time by high-load time is less than or equal to the second threshold.

[0056] The second threshold is, for example, a predetermined fixed value. For example, the second threshold represents 0.7. Alternatively, the second threshold may be determined according to the type of crop harvested. In this case, the second threshold is determined in step S140 by the determination condition determination unit 160, similar to the load threshold and speed threshold.

[0057] The determination unit 170 determines that the work performed by the work device 30 is high-load crop work when the work performed by the work device 30 satisfies both the first and second conditions. The determination unit 170 also stores work information 401 related to the work performed by the work device 30 in the work data 400 shown in Figure 7. For example, the determination unit 170 identifies the work device 30 that performed the work based on the source of the operation information. The operation information may also include information representing the work device 30 that performed the work. In this case, the determination unit 170 identifies the work device 30 that performed the work based on the operation information. The determination unit 170 determines the work information 401 to include information representing the identified work device 30 (e.g., model number, identification code, etc.).

[0058] Furthermore, the work area 620 represented in the work information 401 represents the work area 620 determined by the time determination unit 150 in step S120. The crop type represented in the work information 401 represents the crop type determined by the judgment condition determination unit 160 in step S130. The work time represented in the work information 401 represents the operating time of the work device 30 determined by the judgment unit 170. The work area represented in the work information 401 represents the work area determined by the time determination unit 150 in step S120. Whether or not the work information 401 corresponds to high-load crop work represents the judgment result by the judgment unit 170 in step S170. In this way, the judgment unit 170 generates work information 401 related to the work by the work device 30 based on the information determined in each process, and stores the generated work information 401 in the work data 400.

[0059] In step S180 shown in Figure 10, the output unit 180 outputs display information representing high-load crop work to the terminal 200. For example, the display information represents an image on a map that clearly distinguishes the work area 620 of work determined to be high-load crop work from the work area 620 of other work. Alternatively, the display information may represent a list of work information 401.

[0060] In step S190, the display unit 250 of the terminal 200 displays the display information acquired from the work management device 100 on the input / output device 210. For example, based on the display information, the display unit 250 displays an image on the map, as shown in Figure 3, that clearly distinguishes between the work area 620 where high-load crop work has been performed and other work areas 620. For example, the work area 620 for high-load crop work is represented in a different display manner from the other work areas 620 (e.g., the color, pattern, border color, etc. within the area). The user can easily identify the field 500 where high-load crop work is required.

[0061] Furthermore, the display unit 250 may display a list of the work information 401 shown in Figure 7 in a table format. By viewing the work information 401 displayed in the list, the user can easily confirm the details of the high-load crop work and the work device 30 that performed the high-load crop work.

[0062] The work management system 1000 may also notify the user of information prompting maintenance of work equipment 30 that have performed high-load crop work. For example, the work management system 1000 may notify the user of information indicating work equipment 30 that have performed a large amount of high-load crop work during a predetermined period (for example, the most recent year). For example, the calculation unit 120 of the work management device 100 executes the work management program 410 at predetermined intervals (for example, every year, every month, etc.) and starts the process shown in Figure 11, which is part of the work management method. For example, the calculation unit 120 starts the process shown in Figure 11 when the current time reaches the 1st of each month.

[0063] In step S210, the load information output unit 190, implemented by the arithmetic unit 120, extracts work information 401 from the work data 400 that represents work determined to be high-load crop work during a predetermined period. For example, the load information output unit 190 extracts work information 401 that was performed during a predetermined period and that was determined to be high-load crop work. For example, the load information output unit 190 extracts work information 401 that was performed during the most recent predetermined period (for example, the period from the present to a predetermined period ago) and that was determined to be high-load crop work. For example, the load information output unit 190 extracts work information 401 that was performed during the most recent year and that was determined to be high-load crop work.

[0064] In step S220, the load information output unit 190 determines a high-load area for each work device 30, based on the extracted work information 401, which represents the area where high-load crop work was performed. The high-load area represents the total area of ​​the region where each work device 30 performed high-load crop work. For example, the load information output unit 190 determines the high-load area as the sum of the work areas represented in the work information 401 for each work device 30.

[0065] In step S230, the load information output unit 190 determines whether there are any work devices 30 with a high load area of ​​700 or more. The standard value of 700 represents, for example, a predetermined fixed value, and work devices 30 with a high load area exceeding the standard value of 700 are recommended for maintenance. If there are no work devices 30 with a high load area of ​​700 or more (NO), the load information output unit 190 terminates the process. If there are work devices 30 with a high load area of ​​700 or more (YES), the load information output unit 190 executes the process in step S240.

[0066] In step S240, the load information output unit 190 outputs high load information related to high load crop work to the terminal 200. For example, the load information output unit 190 outputs high load information related to a work device 30 to the terminal 200 used by a user (e.g., the owner or user of the work device 30) whose high load area is 700 or more. The high load information represents the high load area of ​​the corresponding work device 30 and the standard value of 700. Here, the load information output unit 190 holds information relating the work device 30 to the terminal 200 used by the user corresponding to that work device 30, and determines the terminal 200 used by the user corresponding to the work device 30 based on that information. When outputting high load information as email data, the load information output unit 190 holds information relating the work device 30 to the email address of the user corresponding to that work device 30, and outputs the high load information to the corresponding user's email address. Furthermore, the load information output unit 190 may output high load information for all work devices 30 whose high load area is 700 or more to the terminal 200 of the company that performs maintenance on all work devices 30.

[0067] In step S250, the display unit 250 of the terminal 200 displays the acquired high-load information. For example, as shown in Figure 4, the display unit 250 displays information representing the reference value 700 and the high-load area of ​​the work device 30 corresponding to the user using the terminal 200. For example, the display unit 250 displays an image in which the high-load area of ​​each work device 30 is represented by a graph (e.g., a bar graph) with a reference line representing the reference value 700 added. The user can confirm that the high-load area is 700 or more and consider maintenance of the corresponding work device 30. In this way, the work management system 1000 can prompt the user to perform maintenance on the work device 30 whose high-load area is 700 or more.

[0068] The display unit 250 may display an image (for example, a tabular image) that associates the high load area of ​​the work device 30 with information representing the work device 30 (for example, an identification symbol, a name, etc.). In this case, the reference value 700 may be displayed in a position adjacent to the position representing the high load area, or it may be displayed at a distance from the position representing the high load area.

[0069] Furthermore, when the display unit 250 corresponds to multiple work devices 30, it may display an image representing the high-load area of ​​the multiple work devices 30 and the reference value 700. The multiple work devices 30 may include those with a high-load area less than the reference value 700, as shown in Figure 5, or they may be limited to those with a high-load area of ​​700 or more. For example, as shown in Figure 5, the display unit 250 displays an image in which the high-load areas of the first work device 30-1, the second work device 30-2, and the third work device 30-3 are represented by a bar graph, with a reference line representing the reference value 700 added. The user can easily compare the high-load area of ​​each work device 30 with the reference value 700 and use this information to consider the maintenance of each work device 30. In this case, the high-load information output by the load information output unit 190 of the work management device 100 includes information representing the high-load area of ​​the corresponding multiple work devices 30.

[0070] The display unit 250 may display information indicating that maintenance is recommended for work equipment 30 whose high-load area exceeds the standard value of 700. For example, as shown in Figure 4, the display unit 250 may display information indicating the high-load area of ​​the work equipment 30 and the standard value of 700, and may also display a string of characters indicating that maintenance is recommended because the high-load area exceeds the standard value of 700.

[0071] (Embodiment 2) The work management system 1000 may determine whether or not a work is a high-load crop operation based on the operating information of the work device 30, without using the high-load time. For example, if the yield per unit area is high and the speed of the work device 30 cannot be increased during the operation, it may be estimated that the work is a high-load crop operation.

[0072] (Configuration of the work management system) The configuration of the work management system 1000 is the same as in Embodiment 1, except for the parts realized by the arithmetic unit 120 of the work management device 100, as shown in Figure 12. Therefore, a detailed explanation of parts other than those realized by the arithmetic unit 120 will be omitted. The arithmetic unit 120 realizes a speed determination unit 155, a judgment condition determination unit 160B, a judgment unit 170B, an output unit 180, and a load information output unit 190 by executing the work management program 410. The speed determination unit 155 determines a statistical value of the speed when the work device 30 is performing work, based on the operating information of the work device 30. The judgment condition determination unit 160B determines judgment conditions for determining high-load crop work according to the type of crop being cultivated in the area where work is performed by the work device 30, similar to Embodiment 1. However, the thresholds included in the judgment conditions are different from those in Embodiment 1. The judgment unit 170B determines whether the work performed by the work device 30 is high-load crop work, based on the speed of the work device 30. Since the output unit 180 and the load information output unit 190 are the same as in Embodiment 1, a detailed explanation will be omitted.

[0073] (Operation of the work management system) The operation of the work management system 1000 will be explained. First, the operation of the work management system 1000 to display information representing high-load crop work performed on the work device 30 will be explained. For example, similar to Embodiment 1, when the work device 30 performs work in the field 500, it acquires operational information at each time and outputs the acquired operational information to the work management system 100.

[0074] When the arithmetic unit 120 of the work management device 100 receives operational information from the work device 30, it reads and executes the work management program 410 from the storage device 140. Once the work management program 410 is executed, the arithmetic unit 120 starts the work management method shown in Figure 13.

[0075] The processes in step S110 and step S120 are the same as in Embodiment 1, except that the speed determination unit 155 now performs the same process as the time determination unit 150; therefore, a detailed explanation is omitted.

[0076] In step S122, the speed determination unit 155 determines the yield per unit area in the work area 620 based on the determined work area of ​​the work area 620 and the operating information of the work device 30. For example, the speed determination unit 155 determines the yield per unit area in the work area 620 by accumulating the yields represented in the operating information extracted in step S110. The speed determination unit 155 then determines the yield per unit area in the work area 620 by dividing the calculated yield by the work area determined in step S120.

[0077] In step S124, the speed determination unit 155 determines statistical values ​​of the speed when the work device 30 is performing work, based on the operating information of the work device 30 extracted in step S110. For example, the speed determination unit 155 determines statistical values ​​of the speed (e.g., mean, median, etc.) based on the speed distribution shown in the extracted operating information.

[0078] The process in step S130 is the same as in Embodiment 1, so its explanation will be omitted.

[0079] In step S140B, the determination condition unit 160B determines, similar to Embodiment 1, determination conditions for determining whether the work performed by the work device 30 is high-load crop work, based on the type of crop harvested. For example, whether or not the work performed by the work device 30 is high-load crop work is determined by comparing the ratio of the yield per hectare in the work area 620 where the work device 30 was performed with the statistical value of the speed, and a third threshold. In this case, the determination condition unit 160 determines the third threshold based on the type of crop harvested. The third threshold determined for one type of crop may be the same as the third threshold determined for another type of crop.

[0080] In step S170B, the determination unit 170B determines whether the work performed by the work device 30 is high-load crop work, based on the yield per hectare in the work area 620 and the statistical value of the speed of the work device 30. For example, the determination unit 170B determines that the work is high-load crop work when it satisfies a third condition regarding the ratio of the yield per hectare in the work area 620 to the statistical value of the speed of the work device 30. For example, the third condition includes the ratio of the yield per hectare in the work area 620 to the statistical value of the speed of the work device 30 being equal to or greater than a third threshold. In this case, the determination unit 170B determines that the work of the work device 30 satisfies the third condition and determines that the work of the work device 30 is high-load crop work when the value obtained by dividing the yield per hectare in the work area 620 by the speed of the work device 30 is equal to or greater than the third threshold.

[0081] Furthermore, the determination unit 170B stores work information 401 related to the work of the work device 30 in work data 400, similar to the first embodiment. The process of storing the work information 401 in work data 400 is the same as the process in step S170 of the first embodiment, so a detailed explanation is omitted.

[0082] Since the processing in step S180 and step S190 are the same as in Embodiment 1, a detailed explanation will be omitted.

[0083] The work management system 1000 may, as in Embodiment 1, notify the user of information prompting maintenance of the work device 30 that has performed high-load crop work. Since this process is the same as in Embodiment 1, a detailed explanation is omitted.

[0084] Thus, the work management system 1000 may estimate that the work is a high-load crop operation when the yield per unit area is high and the speed of the work device 30 during the operation cannot be increased.

[0085] (modified version) The embodiments and modifications described above are merely examples, and the configurations described in each embodiment and modification may be arbitrarily changed and / or combined as long as they do not impair the function. Furthermore, some of the functions described in the embodiments and modifications may be omitted if the necessary functions can be achieved.

[0086] For example, in the first condition for determining whether the work of the work device 30 is high-load crop work, an example was shown in which the ratio of high-load time to operating time is used as an index representing the ratio of high-load time to the operating time when the work device 30 was working, but it is not limited to this. This index may also be a value that indirectly represents the ratio of high-load time to operating time. For example, this index may be a value obtained by dividing the operating time by the high-load time. In this case, the determination unit 170 determines that the first condition is met when this index is less than or equal to the first threshold.

[0087] Furthermore, this index may also be the value obtained by dividing the time during which the work device 30 is operating at an engine load rate below the load threshold by the operating time. In other words, this index may also be the value obtained by subtracting the high-load time from the operating time and then dividing the resulting value by the operating time. In this case, the determination unit 170 determines that the first condition is met when this index is less than or equal to the first threshold. Furthermore, this index may also be the value obtained by dividing the operating time by the time during which the work device 30 is operating at an engine load rate below the load threshold.

[0088] For example, in the second condition for determining whether the work of the work device 30 is high-load crop work, an example was shown in which the ratio of high-speed time to high-load time is used as an index representing the ratio of high-load time to high-speed time, but it is not limited to this. This index may also be a value that indirectly represents the ratio of high-load time to high-speed time. For example, this index may be a value obtained by dividing high-load time by high-speed time. In this case, the determination unit 170 determines that the second condition is met when this index is equal to or greater than the second threshold.

[0089] Furthermore, this index may also be the value obtained by dividing the time during which the work device 30 is working at a speed below the speed threshold by the time during which the work device 30 is working at an engine load rate below the load threshold. In other words, this index may also be the value obtained by subtracting the high-speed time from the operating information and dividing that value by subtracting the high-load time from the operating time. In this case, the determination unit 170 determines that the second condition is met when this index is equal to or greater than the second threshold.

[0090] Alternatively, this index may be calculated by dividing the high-speed time within the high-load period by the high-load period. Here, the high-speed time within the high-load period represents the time during which the engine load ratio of the work device 30 is equal to or greater than the load threshold, and the speed of the work device 30 is equal to or greater than the speed threshold.

[0091] Furthermore, in step S170 shown in Figure 10, the determination unit 170 determines that the work of the work device 30 is high-load crop work when both the first and second conditions are met, but this is not limited to this example. For example, the determination unit 170 may determine that the work of the work device 30 is high-load crop work even if only the first condition is met. Alternatively, the determination unit 170 may determine that the work of the work device 30 is high-load crop work when both the first and second conditions are met, as well as the third condition of Embodiment 2. In other words, the determination unit 170 may determine that the work of the work device 30 is not high-load crop work when any one of the first, second, or third conditions is not met.

[0092] For example, at least some of the thresholds determined in step S140 of Figure 10, or in step S140B of Figure 13, may represent fixed values ​​that are independent of the crop type. Alternatively, all thresholds may represent fixed values ​​that are independent of the crop type. In this case, the process in step S130 of Figure 10 or Figure 13 may be omitted.

[0093] Furthermore, in step S230 of Figure 11, the reference value 700 used as the standard for the high-load area for which maintenance is recommended may be determined based on the distribution of the high-load area of ​​each work device 30. For example, the load information output unit 190 may determine the reference value 700 as a statistical value (e.g., mean, median, etc.) of the high-load area of ​​each work device 30.

[0094] Furthermore, in step S150 of Figure 10, the time determination unit 150 of the work management device 100 is shown as an example of determining the high-load time using the engine load factor. However, the high-load time may also be determined using the load factor of the prime mover of the work device 30 (hereinafter also referred to as the prime mover load factor). For example, when the work device 30 is operated by an electric motor, the load factor of the electric motor may be used as the prime mover load factor instead of the engine load factor. For example, the status information output by the work device 30 may include information representing the load factor of the electric motor. Alternatively, the status information may include information representing the power consumption of the electric motor, and the time determination unit 150 of the work management device 100 may determine the load factor of the electric motor based on the power consumption. For example, the time determination unit 150 may determine the load factor of the electric motor based on the rated power and power consumption of the electric motor.

[0095] Furthermore, while the work management system 1000 shows an example where one operation, which determines whether or not it is a high-load crop operation, is processed as an operation from the start to the stop of the work device 30, it may also process an operation performed in one field 500 from the start to the stop of the work device 30 as one operation. In this case, in step S110 shown in Figure 10, the time determination unit 150 of the work management device 100 extracts operation information in progress from multiple operation information. The time determination unit 150 classifies the extracted operation information for each field 500 where the operation is being performed in an arbitrary known method. For example, the time determination unit 150 also classifies the operation information corresponding to the operation in the same field 500 into the same group based on the positioning location 610. For example, the time determination unit 150 has information representing the geographical range of the field 500, and classifies the operation information so that the positioning locations 610 included in the geographical range of the same field 500 belong to the same group. Furthermore, the work management system 1000 may process consecutively performed tasks as a single task. For example, if no work is performed for a predetermined period of time or longer, the work management system 1000 may process the work performed up to the interruption and the work performed after the resumption as different tasks.

[0096] Furthermore, the operating information of the work device 30 may be obtained from devices other than the work device 30. Also, the operating information obtained may be limited to operating information of the work device 30 while it is working. In this case, the process of step S110 shown in Figure 10 may be omitted.

[0097] Furthermore, the type of crop being cultivated in the area where the work device 30 has performed its work may be obtained by any method. For example, the user may input information representing the type of crop into the input / output device 210 of the terminal 200. In this case, the display unit 250 of the terminal 200 outputs the information representing the type of crop to the work management device 100. The determination condition unit 160 of the work management device 100 determines the type of crop represented in the acquired information as the type of crop being cultivated in the area where the work device 30 has performed its work. In this case, the process of step S130 shown in Figure 10 may be omitted.

[0098] Furthermore, the yield of crops harvested by the work device 30 may be obtained by any method. For example, another device may measure the yield of crops harvested in the work area 620 and output information representing the measured yield to the work management device 100. Also, similar to the crop types mentioned above, information representing the yield of crops may be input by the user.

[0099] Furthermore, the process of outputting display information from the work management device 100 in step S180 shown in Figure 10 may be executed after waiting for a request from the terminal 200. For example, a user inputs an operation to request display information regarding high-load crop work to the input / output device 210 of the terminal 200. The display unit 250 of the terminal 200 outputs a signal to the work management device 100 requesting display information in response to the operation input by the user. The output unit 180 of the work management device 100 may start the process in step S180 when it receives a signal from the terminal 200 requesting display information.

[0100] Furthermore, the process shown in Figure 11 may also be executed in response to a request from terminal 200. For example, the user inputs an operation to the input / output device 210 of terminal 200 to request high load information regarding high load crop work performed by the work device 30. The display unit 250 of terminal 200 outputs a signal to the work management device 100 to request high load information regarding high load crop work in response to the operation input by the user. When the arithmetic unit 120 of the work management device 100 receives the signal from terminal 200, it reads the work management program 410 from the storage device 140 and executes it. Once the work management program 410 is executed, the arithmetic unit 120 may start the process shown in Figure 11, which is part of the work management method. In this case, the load information output unit 190 of the work management device 100 executes the process in step S240 even if there is no work device 30 with a high load area of ​​700 or more in step S230 shown in Figure 11. Furthermore, in step S240, the load information output unit 190 outputs high load information regarding the work device 30 in accordance with the user who requested high load information.

[0101] For example, the work management device 100 may perform some or all of the processing of terminal 200. Conversely, terminal 200 may perform some or all of the processing of work management device 100. The work management program 410 may include a display program 420.

[0102] The work management system 1000 may not include terminal 200 and may display information on external terminals not included in the work management system 1000.

[0103] (Note) The work management method, work management system, and work management program described in each embodiment can be described as follows.

[0104] The work management method relating to the first aspect is: In the first operation in the field, the high-load period during which the work device is operating at a high load is determined based on the operating information of the work device, Based on the high-load time and the operating time of the work device in the first operation, it is determined whether the first operation performed on the crops cultivated in the work area where the first operation was performed is a high-load crop operation, which requires high-load work. Includes.

[0105] The work management method relating to the second aspect is the work management method relating to the first aspect, Determining whether the first operation is a high-load crop operation is: When the conditions including the ratio of the high-load time to the operating time of the work device are greater than or equal to a first threshold are met, the first work is determined to be the high-load crop work. Includes.

[0106] The work management method relating to the third aspect is a work management method relating to the first or second aspect, Determining whether the first operation is a high-load crop operation is: Furthermore, the first operation is determined to be a high-load crop operation based on an index representing the ratio of the high-speed time during which the work device operates at a speed above a speed threshold to the high-load time. Includes.

[0107] The work management method relating to the fourth aspect is the work management method relating to the third aspect, Determining that the first operation is the high-load crop operation means The first operation is determined to be the high-load crop operation when the conditions including the ratio of the high-speed time to the high-load time being less than or equal to the second threshold are met. Includes.

[0108] The work management method relating to the fifth aspect is a work management method relating to the third or fourth aspect, The speed threshold is determined based on the type of crop being cultivated in the aforementioned work area. It also includes.

[0109] The work management method relating to the sixth aspect is a work management method relating to any one of the first to fifth aspects, Determining the aforementioned high-load time means that The time during which the work device operates at a motor load ratio above the load threshold is determined as the high-load time. Includes.

[0110] The work management method relating to the seventh aspect is a work management method relating to any one of the first to sixth aspects, The first operation further includes determining a statistical value of the speed of the work device based on the operational information, Determining whether the first operation is a high-load crop operation is: Furthermore, based on the ratio of the yield per hectare in the work area to the statistical value, it is determined whether the first work is a high-load crop work. Includes.

[0111] The work management method relating to the eighth aspect is a work management method relating to any one of the first to seventh aspects, Calculate the high-load area, which represents the total area over which the work device performed work in one or more operations determined to be high-load crop operations, including the first operation; Outputting information representing the high-load area and a reference value representing the criteria for performing maintenance on the high-load area, It also includes.

[0112] The work management method relating to the ninth aspect is the work management method relating to the eighth aspect, Calculating the aforementioned high-load area is, The total area of ​​the work area where the high-load crop work was performed during the most recent predetermined period is calculated as the high-load area. Includes.

[0113] The work management method relating to the tenth aspect is: In the first operation in the field, the statistical value of the speed of the work device is determined based on the operating information of the work device, Based on the ratio of the yield per hectare in the work area where the first work was performed to the statistical value, it is determined whether the first work performed on the crops cultivated in the work area is a high-load crop operation, which requires high-load work. Includes.

[0114] The work management system relating to the 11th aspect is: In the first operation in the field, a time determination unit determines the high-load time during which the work device is operating at a high load, based on the operating information of the work device, A determination unit determines, based on the high-load time and the operating time of the work device in the first operation, whether the first operation performed on the crops cultivated in the work area where the first operation was performed is a high-load crop operation, which represents an operation on a high-load crop that requires a high-load operation. It is equipped with.

[0115] The work management system relating to the 12th aspect is: In the first operation in the field, a speed determination unit determines a statistical value of the speed of the work device based on the operating information of the work device, A determination unit determines, based on the ratio of the yield per hectare in the work area where the first operation was performed to the statistical value, whether the first operation performed on the crops cultivated in the work area is a high-load crop operation, which represents an operation on a high-load crop that requires a high load of work, It is equipped with.

[0116] The work management system according to the 13th aspect is a work management system according to the 11th or 12th aspect, The system further includes a display unit that displays information indicating the aforementioned high-load crop work.

[0117] The work management program relating to the 14th aspect is: In the first operation in the field, the high-load period during which the work device is operating at a high load is determined based on the operating information of the work device, Based on the high-load time and the operating time of the work device in the first operation, it is determined whether the first operation performed on the crops cultivated in the work area where the first operation was performed is a high-load crop operation, which requires high-load work. The arithmetic unit is made to execute it.

[0118] The work management program relating to the 15th aspect is: In the first operation in the field, the statistical value of the speed of the work device is determined based on the operating information of the work device, Based on the ratio of the yield per hectare in the work area where the first work was performed to the statistical value, it is determined whether the first work performed on the crops cultivated in the work area is a high-load crop operation, which requires high-load work. The arithmetic unit is made to execute it. [Explanation of Symbols]

[0119] 1, 2: Storage medium 20: Network 30: Work equipment 100: Work management device 110: Input / Output Devices 120: Arithmetic device 130: Communication device 140: Storage device 150: Time determination unit 155: Speed ​​determining section 160: Judgment Condition Determination Unit 170: Judgment section 180: Output section 190: Load information output unit 200: Terminal 210: Input / Output Devices 220: Arithmetic device 230: Communication equipment 240: Storage device 250:Display section 400: Work data 401: Work Information 410: Work Management Program 420: Display Program 500: Field 600: Travel route 610: Positioning location 620 :Work area 700: Reference value 1000: Work Management System

Claims

1. In the first operation in the field, the high-load period during which the work device is operating at a high load is determined based on the operating information of the work device, Based on the high-load time and the operating time of the work device in the first operation, it is determined whether the first operation performed on the crops cultivated in the work area where the first operation was performed is a high-load crop operation, which requires high-load work. A work management method that includes this.

2. Determining whether the first operation is the high-load crop operation is: When the conditions are met, including the ratio of the high-load time to the operating time of the work device being equal to or greater than a first threshold, the first work is determined to be the high-load crop work. A work management method according to claim 1, including the following:

3. Determining whether the first operation is the high-load crop operation is: Furthermore, the first operation is determined to be a high-load crop operation based on an index representing the ratio of the high-speed time during which the work device operates at a speed above a speed threshold to the high-load time. A work management method according to claim 1, including the following:

4. Determining whether the first operation is the high-load crop operation is: The first operation is determined to be the high-load crop operation when the conditions are met, including the ratio of the high-speed time to the high-load time being less than or equal to the second threshold. A work management method according to claim 3, including the following:

5. The speed threshold is determined based on the type of crop being cultivated in the aforementioned work area. The work management method according to claim 3, further comprising:

6. Determining the aforementioned high-load time means that The time during which the work device operates at a motor load ratio above the load threshold is determined as the high-load time. A work management method according to any one of claims 1 to 5, including the following:

7. The first operation further includes determining a statistical value of the speed of the work device based on the operational information, Determining whether the first operation is the high-load crop operation is: Furthermore, the first operation is determined to be a high-load crop operation based on the ratio of the yield per hectare in the work area to the statistical value. A work management method according to any one of claims 1 to 5, including the following:

8. To calculate the high-load area, which represents the total area over which the work device performed work in one or more operations determined to be high-load crop operations, including the first operation, Outputting information representing the high-load area and a reference value representing the criteria for performing maintenance on the high-load area, A work management method according to any one of claims 1 to 5, further comprising:

9. Calculating the aforementioned high-load area is, The total area of ​​the work area where the high-load crop work was performed during the most recent predetermined period is calculated as the high-load area. A work management method according to claim 8, including the following:

10. In the first operation in the field, the statistical value of the speed of the work device is determined based on the operating information of the work device, Based on the ratio of the yield per hectare in the work area where the first operation was performed to the statistical value, it is determined whether the first operation performed on the crops cultivated in the work area is a high-load crop operation, which requires high-load work. A work management method that includes this.

11. In the first operation in the field, a time determination unit determines the high-load time during which the work device is operating at a high load, based on the operating information of the work device, A determination unit determines, based on the high-load time and the operating time of the work device in the first operation, whether the first operation performed on the crops being cultivated in the work area where the first operation was performed is a high-load crop operation, which represents an operation on a high-load crop that requires a high-load operation. A work management system equipped with the following features.

12. In the first operation in the field, a speed determination unit determines a statistical value of the speed of the work device based on the operating information of the work device, A determination unit determines, based on the ratio of the yield per hectare in the work area where the first operation was performed to the statistical value, whether the first operation performed on the crops cultivated in the work area is a high-load crop operation, which requires high-load work. A work management system equipped with the following features.

13. The system further includes a display unit that displays information indicating the aforementioned high-load crop work. The work management system according to claim 11 or 12.

14. In the first operation in the field, the high-load period during which the work device is operating at a high load is determined based on the operating information of the work device, Based on the high-load time and the operating time of the work device in the first operation, it is determined whether the first operation performed on the crops cultivated in the work area where the first operation was performed is a high-load crop operation, which requires high-load work. A task management program that instructs the computing unit to execute tasks.

15. In the first operation in the field, the statistical value of the speed of the work device is determined based on the operating information of the work device, Based on the ratio of the yield per hectare in the work area where the first operation was performed to the statistical value, it is determined whether the first operation performed on the crops cultivated in the work area is a high-load crop operation, which requires high-load work. A task management program that instructs the computing unit to execute tasks.

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