JP2022036522A - Work management system, work management method, and work management program - Google Patents

Abstract

To provide a work management system, work management method, and work management program, which make it easy to suppress bias in sampling positions and variation in the sampling number in individual sections.SOLUTION: A work management system is provided, comprising a position acquisition unit and a section setting unit. The position acquisition unit acquires a plurality of pieces of position information on a plurality of positions in relation to work being done at the plurality of positions in a farm field. The section setting unit sets, in a work area A1 corresponding to the farm field, a plurality of sections K that varies according to the arrangement of a plurality of positioning points P1 corresponding to the plurality of pieces of position information within the work area A1.SELECTED DRAWING: Figure 16

Description

The present invention relates to a work management system, a work management method and a work management program used for managing work performed in a field.

As a related technique, a system for displaying a map (agricultural map) such as a yield map that visualizes yield data or the like is known (see, for example, Patent Document 1). The system related to the related technology displays a mesh-type map in which the work area (field) showing the field is divided into multiple sections (areas) and the agricultural map data data (yield data, etc.) is assigned to the multiple sections. .. That is, the map is generated by dividing the work area into a plurality of predetermined sections and then allocating data to each section.

Japanese Unexamined Patent Publication No. 2019-128661

In the configuration of the above-mentioned related technology, since the compartments are predetermined, if the sampling position is biased (such as yield data) or the number of samplings (number of data) varies in each compartment, the map is generated. Data reliability may be reduced.

An object of the present invention is to provide a work management system, a work management method, and a work management program that can easily suppress the bias of the sampling position and the variation of the number of samplings in each section.

The work management system according to one aspect of the present invention includes a position acquisition unit and a section setting unit. The position acquisition unit acquires a plurality of position information related to the plurality of positions with respect to the work performed at the plurality of positions in the field. The section setting unit sets, in the work area corresponding to the field, a plurality of sections that change according to the arrangement of the plurality of positioning points corresponding to the plurality of position information in the work area.

The work management method according to another aspect of the present invention is to acquire a plurality of position information related to the plurality of positions with respect to the work performed at the plurality of positions in the field, and to obtain the work area corresponding to the field. It includes setting a plurality of sections that change according to the arrangement of a plurality of positioning points corresponding to a plurality of position information in the work area.

The work management program according to another aspect of the present invention is to acquire a plurality of position information related to the plurality of positions with respect to the work performed at the plurality of positions in the field, and to the work area corresponding to the field. This is a program for causing one or more processors to set a plurality of sections that change according to the arrangement of a plurality of positioning points corresponding to a plurality of position information in the work area.

According to the present invention, it is possible to provide a work management system, a work management method, and a work management program that can easily suppress the bias of the sampling position and the variation of the number of samplings in each section.

FIG. 1 is a diagram showing a system configuration of a work management system according to the first embodiment. FIG. 2 is a side view showing an example of the combine according to the first embodiment. FIG. 3 is a plan view showing an example of the combine according to the first embodiment. FIG. 4 is a diagram showing an example of the movement locus of the combine according to the first embodiment in the field. FIG. 5 is a diagram showing an example of work information acquired by the work management system according to the first embodiment. FIG. 6 is a diagram schematically showing how a section is generated from position information in the work management system according to the first embodiment. FIG. 7 is a diagram schematically showing a state in which a candidate area and a temporary section are set in the work management system according to the first embodiment. FIG. 8 is a diagram schematically showing a state in which a work area is automatically set by the work management system according to the first embodiment. FIG. 9 is a flowchart showing an example of a series of processes related to automatic setting of a work area in the work management method according to the first embodiment. FIG. 10 is a diagram schematically showing how the work area is automatically set by the first related technique. FIG. 11 is a diagram showing an example of a registration screen for manually setting a work area in the work management system according to the first embodiment. FIG. 12 is a diagram schematically showing a state in which a work area is divided into a plurality of sections in the work management system according to the first embodiment. FIG. 13 is a diagram showing an example of a map created in the work management system according to the first embodiment. FIG. 14 is a diagram showing an example of a display screen generated in the work management system according to the first embodiment. FIG. 15 is a diagram schematically showing a procedure for setting a section in the first mode in the work management system according to the first embodiment. FIG. 16 is a diagram schematically showing a procedure for setting a section in the second mode in the work management system according to the first embodiment. FIG. 17 is a diagram showing an example of a map using a section set in the second mode in the work management system according to the first embodiment. FIG. 18 is a flowchart showing an example of a series of processes related to the setting of the section in the second mode in the work management method according to the first embodiment. FIG. 19 is a diagram schematically showing a procedure for setting a section in the third mode in the work management system according to the first embodiment. FIG. 20 is a diagram showing an example of a map using a section set in the third mode in the work management system according to the first embodiment. FIG. 21 is a flowchart showing an example of a series of processes related to the setting of the section in the third mode in the work management method according to the first embodiment. FIG. 22 is a diagram showing a system configuration of the work management system according to the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are examples that embody the present invention, and are not intended to limit the technical scope of the present invention.

(Embodiment 1)
[1] Overall Configuration As shown in FIG. 1, the work management system 1 according to the present embodiment includes a management server 2, a user terminal 3, and a combine 4. The combine 4 is an example of a work machine to be managed by the work management system 1.

The "working machine" as used in the present disclosure means various working machines that move in the field F1, and as an example, is a work vehicle such as a combine 4, a tractor, a rice transplanter, and a seeding machine. That is, the work machine includes the work vehicle. The working machine is not limited to a “vehicle” such as a combine 4, a tractor, a rice transplanter, and a seeder, and may be, for example, a working flying object such as a drone or a multicopter for spraying or fertilizing pesticides. Further, the work machine is not limited to the agricultural machine (agricultural machine), and may be, for example, a construction machine (construction machine) or the like.

Further, the "field" referred to in the present disclosure is a work target area where various operations such as harvesting, planting (rice planting) or fertilization are performed while the work machine is moving, and is a field or field for growing agricultural products. Includes orchards and meadows. Further, when the plants are grown in the plantation field, the plantation field becomes the field F1, and when the trees to be timber are grown in the forest as in the forestry, the forest becomes the field F1. Since such a field F1 is a specific place in a real space (existing space), the position, shape, size, and the like are represented by, for example, latitude and longitude. In the present embodiment, the case where the work target area for performing various tasks while the work machine moves in the real space is the field F1 will be described, but the work target area may be other than the field F1. .. For example, if the work machine is a construction machine, the work site where the construction machine works is the work target area.

Further, the work to be managed by the work management system 1 is, in a broad sense, the work related to the cultivation of crops in the field F1, and is the work performed by the work machine that moves the field F1 such as the combine 4. Not exclusively. That is, for example, a work performed by a person at a plurality of positions in the field F1 may be a management target in the work management system 1, such as a work performed by a person while moving the field F1. As an example of this kind of work, there is soil sampling (soil sampling) for diagnosing the soil characteristics of the field F1. That is, for example, in order to carry out fertilization suitable for crop cultivation in the field F1, it is necessary to diagnose the soil characteristics of the field F1, and in the diagnosis of the soil characteristics, the soil was collected at a plurality of positions in the field F1. The soil needs to be analyzed. Such work such as soil sampling may be performed by a work machine, but is often performed by a person. This type of work is also directly or indirectly related to the cultivation of crops in the field F1 and can be managed by the work management system 1. However, in the present embodiment, unless otherwise specified, the work executed by the work machine will be described as the management target in the work management system 1.

In the present embodiment, the work machine (combine 4) to be managed by the work management system 1 is included in the components of the work management system 1, but the work machine is a component of the work management system 1. It is not mandatory to be included. Similarly, in the present embodiment, the user terminal 3 is included in the component of the work management system 1, but it is not essential that the user terminal 3 is included in the component of the work management system 1. That is, the work management system 1 does not have to include at least one of the work machine (combine 4) and the user terminal 3 as a component. When the work management system 1 does not include both the work machine and the user terminal 3 in the components, the work management system 1 includes only the management server 2 in the components.

The management server 2, the user terminal 3, and the combine 4 (working machine) can communicate with each other. "Communicable" as used in the present disclosure means direct communication or via a communication network (network) N1 or a repeater by an appropriate communication method of wired communication or wireless communication (communication using radio waves or light as a medium). It means that information can be exchanged indirectly. For example, the management server 2 and the combine 4 can communicate via a mobile phone line network, a packet line network, a wireless LAN (Local Area Network), or the like. Further, the management server 2 and the user terminal 3 can communicate with each other via the Internet, LAN, WAN (Wide Area Network), public telephone line, or the like. The communication means between the management server 2, the user terminal 3 and the combine 4 is not limited to the above example, and is realized by an appropriate communication means. Further, it is not an essential configuration in the work management system 1 that the management server 2, the user terminal 3, and the work machine (combine 4) can communicate with each other. For example, even if there is no communication function between the management server 2 and the work machine (combine 4), information is recorded on a non-temporary recording medium that can be read by a computer on the work machine, and the management server 2 records the information from the recording medium. By reading the information, it is possible to exchange information offline.

The work machine (combine 4) capable of communicating with the management server 2, that is, the work machine to be managed by the work management system 1, may be one or a plurality of machines. When the work machines to be managed by the work management system 1 include a plurality of combine harvesters 4, the plurality of combine harvesters 4 cooperate with each other in harvesting operations for harvesting crops in the same field F1, for example. Execute. Further, the plurality of work machines to be managed by the work management system 1 may include different types of work machines such as a combine 4, a tractor, a rice transplanter and a seeder.

In the present embodiment, the management server 2 has a core function of the work management system 1. That is, the management server 2 has a function of managing the work of the work machine (here, the combine 4). The user terminal 3 is a communication terminal used by the user. For example, the user accesses the website of the work support service provided by the management server 2 (for example, the “work support site”) on the user terminal 3, and includes information such as the operation status and the yield of the combine 4. It is possible to display a web page.

[2] Working Machine Next, the configuration of the combine 4, which is an example of the working machine, will be described in detail with reference to FIGS. 1, 2, and 3. The combine 4 includes a traveling device 41, a harvesting device 42, a threshing device 43, a sorting device 44, a storage device 45, a power device 46, a driving unit 47, a vehicle control device 48, a mounting terminal 49, and the like.

The vehicle control device 48 is a computer system having one or more processors and one or more memories such as a non-volatile memory and a RAM (Random Access Memory). Then, the vehicle control device 48 controls the operation of the combine 4 in response to various user operations on the combine 4.

The traveling device 41 can move the combine 4 in the front-rear direction and the left-right direction. For example, as shown in FIG. 4, the combine 4 carries out the harvesting operation while meandering in the field F1. In FIG. 4, as an example, two fields F1 of the first field F11 and the second field F12 are shown as the fields F1 in which the combine 4 working machine works. Further, in FIG. 4, a schematic map including the field F1 is shown in the upper row, and a schematic enlarged view of the field F1 (first field F11) is shown in the lower row (inside the balloon). The movement locus R1 of the combine 4 is not limited to the path shown in FIG. As an example, a working machine such as a combine 4 may move while turning right (or left) from the outside to the inside in the field F1, in which case the movement locus R1 becomes a spiral path.

The reaping device 42 cuts the culm of the field F1. The cutting device 42 includes a reel 421, a cutter 422, an auger 423, a conveyor 424, a rotor 425, and the like. The reel 421 guides the grain culm of the field F1 to the cutter 422 by rotating. The cutter 422 cuts the grain guided by the reel 421. The auger 423 is a lateral feed screw that collects the culms cut by the cutter 422 in a predetermined position.

The conveyor 424 transports the culms collected by the auger 423 to the rotor 425. The rotor 425 sends the grain culms conveyed by the transfer conveyor 424 to the threshing device 43.

The threshing device 43 performs a threshing process on the grain culms cut by the cutting device 42. The threshing process separates the threshing containing the grains from the culm. The threshing falls from the threshing device 43 to the lower sorting device 44.

The sorting device 44 executes a sorting process for sorting grains from the threshing that falls from the threshing device 43. The sorting device 44 sorts the threshing grains from the threshing, for example, by sieving the threshing while blowing wind from diagonally below the threshing.

The threshing device 43, for example, performs a threshing process on the grain culm while transporting the grain culm from the front portion to the rear of the grain culm. Similarly, the sorting device 44 executes a sorting process for threshing, for example, while transporting the threshing device from the front part to the rear side of the sorting device 44.

The storage device 45 includes a vertical transfer duct 451, a vertical transfer conveyor 452, a grain tank 453, a discharge auger 454, and the like. The vertical transfer duct 451 is a duct that connects the sorting device 44 and the upper inlet of the Glen tank 453. The vertical transfer conveyor 452 is a screw conveyor that transfers grains from the sorting device 44 into the Glen tank 453 by rotating in the vertical transfer duct 451. The discharge auger 454 discharges the grains in the grain tank 453 to an arbitrary place around the combine 4.

The power device 46 is a drive source for the traveling device 41, the harvesting device 42, the threshing device 43, the sorting device 44, and the storage device 45. The power device 46 has an engine such as a diesel engine as a power source. Further, the power device 46 may have a motor (motor) as a power source, or may have a hybrid power source including an engine and a motor.

The driver unit 47 is provided with a driver's seat in which the operator sits, and operation devices such as a steering wheel operated by the operator, various operation levers, and various operation switches. For example, the operating device includes an engine ON / OFF key. The engine ON / OFF key is a key switch, a button switch, or the like for switching between starting and stopping the engine mounted on the combine 4. The vehicle control device 48 starts the engine when the engine ON / OFF key is switched on, and stops the engine when the engine ON / OFF key is switched off.

The on-board terminal 49 is a communication terminal mounted on the work machine (combine 4). The on-board terminal 49 has functional units such as a control unit 491, a storage unit 492, a communication unit 493, a position detection unit 494, and a performance detection unit 495. These plurality of functional units included in the mounted terminal 49 may be distributed in a plurality of housings or may be provided in one housing. In the present embodiment, as an example, the position detection unit 494 and the performance detection unit 495 are provided in a housing separate from other functional units (control unit 491 and the like).

The control unit 491 is a computer system having one or more processors and one or more storage memories such as a non-volatile memory and RAM. The storage unit 492 is a control program for causing the control unit 491 to execute a predetermined process, a non-volatile memory for storing data such as work information D1 (see FIG. 5) described later, and the like.

The communication unit 493 can transmit and receive various data to and from the vehicle control device 48 by short-range wireless communication or wired communication. Specifically, the control unit 491 can acquire operation information indicating various operation states of the combine 4 from the vehicle control device 48 by the communication unit 493. The operation information is included in the work information D1 related to the work of the work machine (combine 4).

The operation information includes information on at least one item of the operation status of the work machine (combine 4) itself. For example, the operation information includes steering wheel operation information indicating a steering wheel operation angle (steering angle), shift information indicating an operation state of a shift lever, and the like. The operation information also includes engine information indicating the ON / OFF state of the engine ON / OFF key of the combine 4. Further, the operation information includes rotation speed information indicating the engine rotation speed, vehicle speed information, fuel consumption information indicating the fuel consumption rate, load information indicating the engine load, and the like. In addition, the operation information includes slip rate information indicating the slip rate, clutch information indicating the clutch operation state, brake information indicating the brake operation state, the state of various sensors mounted on the work machine, and the like. May be good.

The "work information" here includes, in addition to the operation information, the position information D2 indicating the position of the work machine, the actual information indicating the actual result of the work by the work machine, and the like. The control unit 491 can acquire the position information D2 of the work information D1 from the position detection unit 494. The control unit 491 can acquire the actual information in the work information D1 from the actual detection unit 495. The "result information" here is information related to the result (result) of the work performed by the work machine, for example, when the work machine is a harvester (including the combine 4) for harvesting crops. , Includes harvest information (yield data) regarding yield (yield). That is, in this case, the work information D1 includes the crop yield information in the work machine for each position of the work machine. In addition, the actual information may include information such as average work speed, variation in work speed, work time, work efficiency (area / work time), fertilizer application amount, planting depth, tillage depth and lift angle. ..

Further, the communication unit 493 can send and receive various data to and from the management server 2 via the communication network N1. Therefore, the on-board terminal 49 mounted on the combine 4 (working machine) can transmit, for example, work information D1 or the like to the management server 2 via the communication network N1.

The position detection unit 494 uses, for example, a satellite positioning system such as GNSS (Global Navigation Satellite System) to detect the position of the mounted terminal 49, that is, the position information D2 indicating the position of the combine 4 on which the mounted terminal 49 is mounted. .. The position information D2 includes latitude and longitude information indicating the position of the combine 4. The method for acquiring the position information D2 of the combine 4 by the position detection unit 494 is not particularly limited. Further, the position information D2 is not limited to a format using latitude and longitude, and may be a format other than latitude and longitude as long as it can specify the position of the work machine (here, combine 4).

Here, considering the processing in the management server 2, it is preferable that the position detection unit 494 detects the position information D2 with as high accuracy as possible. As an example, it is preferable that the position detection unit 494 adopts a method capable of detecting the position information D2 with relatively high accuracy, such as RKT (Real Time Kinematic) positioning. This has the advantage that, for example, when the work area A1 (see FIG. 8) is automatically set on the management server 2 as described later, the work area A1 can be set accurately.

The performance detection unit 495 detects the performance information included in the work information D1. Here, since the working machine is a harvester (combine 4) for harvesting crops, the actual information includes the harvest amount information (yield data) regarding the harvest amount. Therefore, the performance detection unit 495 has a sensor (grain sensor) for detecting the yield (grain amount) of the crop harvested by the combine 4. The performance detection unit 495 is attached to the upper surface of the Glen tank 453 as an example (see FIG. 3). The grains obtained by the threshing device 43 and the sorting device 44 are transported toward the Glen tank 453 by the vertical transfer conveyor 452. As an example, the grain sensor of the performance detection unit 495 includes an impact detection unit such as a strain gauge or a piezoelectric element, and detects an impact force when the conveyed grain collides with the impact detection unit. The performance detection unit 495 detects the yield (detection value) based on this impact force. The method for acquiring the yield of combine 4 by the performance detection unit 495 is not particularly limited.

The control unit 491 executes the following various processes. Specifically, the control unit 491 executes a timekeeping process for measuring the current time. The "time" here includes a year, a month, a day, an hour, a minute, and a second. The on-board terminal 49 is connected to a battery, and the control unit 491 can execute processing such as timekeeping processing by the electric power supplied from the battery even when the engine of the combine 4 is in the OFF state.

Further, the control unit 491 executes an information acquisition process for acquiring the position information D2 of the work machine (combine 4), the actual information (harvest amount information, etc.) and the operation information. Specifically, the control unit 491 periodically or irregularly performs the position information D2, the actual information, and the operation at a predetermined time interval or a predetermined timing (time) based on the time measured by the timekeeping process. Get information. In the present embodiment, as an example, the control unit 491 periodically acquires the position information D2, the actual information, and the operation information at a preset (predetermined) sampling interval.

The control unit 491 records the acquired position information D2, actual information, and operation information in the storage unit 492. Here, the control unit 491 stores the position information D2, the actual information, and the operation information in the storage unit 492 in association with the time information representing the time when these are acquired. Therefore, the position information D2, the actual information, and the operation information acquired at the same time are maintained in a state of being associated with each other by using the acquired time information as a key in the storage unit 492. The sampling interval is set at least based on the acquisition interval (for example, a time interval of 1 second or more and 5 seconds or less) of actual information (harvest amount information) required for creating the map M1 (see FIG. 13). Further, the sampling interval is set to be shorter than the acquisition interval (for example, 1 minute interval) of the position information D2 required for specifying the movement locus R1 of the combine 4, for example. In the present embodiment, as an example, the control unit 491 acquires position information D2, actual information, and operation information at a sampling interval of “5 seconds”.

FIG. 5 is a diagram showing an example of work information D1 including position information D2, actual information (harvest amount information), operation information, and time information recorded in the storage unit 492. Since the work information D1 is acquired at sampling intervals (here, 5 second intervals), the information shown in each row of the table shown in FIG. 5 is the work information D1. That is, the entire table shown in FIG. 5 includes a plurality of work information D1s. Regarding the position information D2, the information described in each row of the “position information” column of the table shown in FIG. 5 is the position information D2. That is, the entire table shown in FIG. 5 includes a plurality of position information D2. However, in FIG. 5, one reference code “D2” is attached to the plurality of position information D2.

In FIG. 5, the position information D2 is indicated by X1 to X17 and Y1 to Y17, but the actual position information D2 includes numerical values (latitude and) indicating the position of the combine 4 instead of X1 to X17 and Y1 to Y17. (Longitude) etc. are included. Further, in FIG. 5, the harvest amount information as the actual result information is shown by E1 to E17, but the actual harvest amount information is a numerical value indicating the detection value detected by the actual result detection unit 495 instead of E1 to E17. (Weight) etc. are included. Further, in FIG. 5, vehicle speed information (an example of operation information) is shown by V1 to V17, but the actual vehicle speed information is a numerical value (speed) indicating a detection value detected by the vehicle speed sensor instead of V1 to V17. ) Etc. are included.

As an example in this embodiment, the control unit 491 periodically acquires position information D2, actual information (harvest amount information), and operation information while the engine ON / OFF key of the combine 4 is ON and the engine is ON. Then, the information recording process to be recorded in the storage unit 492 is repeatedly executed. Therefore, the control unit 491 can acquire a plurality of work information D1s related to the work for each position of the work machine during the "work period" in which the combine 4 which is the work machine is used.

Further, as an example in the present embodiment, the control unit 491 ends the information recording process when the engine ON / OFF key of the combine 4 is switched off and the engine is turned off (that is, stopped). That is, if the engine is in the off state, new work information D1 (position information D2, actual information, operation information, and time information) is not stored in the storage unit 492. Further, the control unit 491 transmits one or more work information D1 recorded in the storage unit 492 to the management server 2 at the time when the information recording process is completed. Here, when the control unit 491 receives the reception confirmation signal of the work information D1 from the management server 2, the control unit 491 erases the work information D1 from the storage unit 492. That is, when the work information D1 is normally transmitted from the combine 4 (work machine) to the management server 2, the work information D1 in the storage unit 492 is erased.

As described above, the combine 4 includes the on-board terminal 49, records the work information D2 including the position information D2 according to the work, the actual result information (harvest amount information), and the operation information in the storage unit 492, and stores the work information D1 in the storage unit 492. The one or more work information D1s that have been created are transmitted to the management server 2. In the present embodiment, the work information D1 is transmitted from the work machine to the management server 2 triggered by the switching of the engine of the combine 4 as the work machine from the on state to the off state (that is, stop), but the management server 2 The transmission timing of the work information D1 to is not limited to this example. For example, the combine 4 may send the work information D1 obtained in the previous work period to the management server 2 periodically or periodically, triggered by the engine switching from the off state to the on state (that is, starting). The work information D1 may be transmitted to the management server 2 irregularly.

Further, the work machine to be managed by the work management system 1 is not limited to the combine 4, and may be, for example, a tractor, a rice transplanter, a seeding machine, or the like. Then, if the work machine is changed, naturally, the functions of each part such as the cutting device 42 in the work machine are changed according to the work machine. On the other hand, the basic functions of the mounted terminal 49 mounted on the work machine are common regardless of the work machine.

That is, regardless of the work machine, the mounted terminal 49 has a control unit 491, a storage unit 492, a communication unit 493, a position detection unit 494, a performance detection unit 495, and the like. However, for example, when the work machine is a tractor, the actual information in the work information related to the work of the work machine includes, in addition to or instead of the yield information, soil information regarding soil characteristics, fertilizer application information regarding fertilizer application amount, etc. Data may be included. In this case, the performance detection unit 495 detects soil data, fertilization data, etc. in addition to or in place of the yield information (yield data). Similarly, for example, when the work machine is a rice transplanter, the actual information in the work information related to the work of the work machine may include data such as fertilizer application information regarding the fertilizer application amount. In this case, the performance detection unit 495 detects fertilizer application data and the like. Similarly, for example, when the work machine is a seeding machine, the actual information in the work information related to the work of the work machine may include data such as seeding information regarding the seeding amount. In this case, the performance detection unit 495 detects the seeding data and the like.

If the work machine is a tractor, the work machine can perform multiple types of work such as tilling, mowing, or spraying fertilizer, pesticides, or seeds by changing the implant attached to the tractor body. It is possible. When the type (contents) of work that can be performed by the work machine is changed, such as when the implant attached to the tractor body is changed, the work machines before and after the change must be different work machines. do.

[3] Management Server Next, the configuration of the management server 2 will be described in detail with reference to FIG. The management server 2 is a server including an information processing unit 21, a data storage unit 22, an operation reception unit 23, a (server side) communication unit 24, and the like. The management server 2 is not limited to one computer, and may be a computer system in which a plurality of computers operate in cooperation with each other. Further, various processes executed by the management server 2 may be distributed and executed by a plurality of processors.

The communication unit 24 is a communication interface having a communication function with one or more work machines (combines 4) and external devices such as a user terminal 3. Specifically, the communication unit 24 connects the management server 2 to the communication network N1 by wire or wirelessly, and connects the management server 2 with one or more work machines (combine 4), the user terminal 3, and the like via the communication network N1. Performs data communication according to a predetermined communication protocol.

The operation reception unit 23 accepts the user's operation. Specifically, since the management server 2 can communicate with the user terminal 3, the operation reception unit 23 transmits an operation signal corresponding to the user's operation to the user terminal 3 from the user terminal 3, so that the user can use the operation reception unit 23. Accept operations indirectly. That is, when the user operates the user terminal 3, the user terminal 3 generates an operation signal corresponding to the user's operation, and the operation signal is transmitted from the user terminal 3 to the management server 2. Therefore, the operation receiving unit 23 can receive the user's operation by the operation signal received from the user terminal 3 by the management server 2. Further, the operation receiving unit 23 is not limited to the user's operation on the user terminal 3, and may accept the user's operation (administrator of the management server 2 or the like) on the operation unit other than the user terminal 3. In this case, the operation unit is realized by, for example, a touch panel, a mouse, a keyboard, or the like provided in the management server 2 or attached to the management server 2.

The data storage unit 22 includes a non-volatile storage device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) that stores various types of information. The data storage unit 22 stores (stores) a control program such as a work management program for causing the information processing unit 21 to execute the work management method described later. The work management program is, for example, recorded and provided on a computer-readable non-temporary recording medium, read from the non-temporary recording medium by the reading device of the management server 2, and stored in the data storage unit 22. The work management program may be provided (downloaded) to the management server 2 from a server other than the management server 2 via a telecommunication line (communication network N1) and stored in the data storage unit 22.

Further, the data storage unit 22 includes a work information storage unit 221 and a work area storage unit 222. The work information storage unit 221 stores the work information D1 transmitted from the combine 4 (work machine). The work area storage unit 222 stores information about the work area A1 described later.

The information processing unit 21 is a computer system having one or more processors and one or more memories such as a non-volatile memory and a RAM, and executes various processes (information processing). The information processing unit 21 has functional units such as a position acquisition unit 211, a work acquisition unit 212, an area setting unit 213, a section setting unit 214, a data calculation processing unit 215, a map generation unit 216, and a display processing unit 217. These plurality of functional units included in the information processing unit 21 may be distributed in a plurality of housings or may be provided in one housing.

The position acquisition unit 211 acquires a plurality of position information D2 related to a plurality of positions with respect to the work performed at the plurality of positions in the field F1. In the present embodiment, basically, the management target in the work management system 1 is the work performed by the work machine (combine 4), so that the position information D2 acquired by the position acquisition unit 211 is the position information of the work machine. It is D2. That is, the position acquisition unit 211 acquires a plurality of position information D2 during the work period of the work machine (combine 4) that moves in the field F1. The "work period" here is a period during which work is being performed on the work machine, and during the work period, work information D1 is acquired by the on-board terminal 49 (control unit 491) mounted on the work machine. ing. In the present embodiment, as an example, the period from when the engine ON / OFF key of the combine 4 is switched on to when it is switched off, that is, the period during which the engine is in the ON state is defined as the “working period”. Then, since the work machine moves in the field F1 during the work period, a plurality of position information D2s are acquired as the work machine moves. Further, the "working period" may include not only the period in which the working machine moves in the field F1, but also, for example, the period in which the working machine is traveling on the farm road. In short, when the period in which the engine is on is defined as the "working period" as in the present embodiment, the working period may include a period in which the working machine exists in a place other than the field F1, such as a farm road. However, among the plurality of position information D2 during the work period, the position information D2 when the work machine exists in a place other than the field F1 can be obtained by referring to, for example, vehicle speed information and clutch information in the operation information. It can be identified as unnecessary information.

On the other hand, in the case where the work performed by a person, such as soil sampling for diagnosing soil characteristics, is to be managed by the work management system 1, the position acquisition unit 211 is performed by a person in the field F1. The position information D2 related to each position will be acquired. In this case, for example, each time the worker (person) performs the work, the position where the work is performed is positioned and recorded as the position information D2. As an example, the position information D2 at this time may be recorded by being written in the storage unit 32 or the like of the user terminal 3, or may be recorded by being written in the data storage unit 22 of the management server 2 by the user terminal 3 or the like. It may be recorded directly in the management server 2. The position acquisition unit 211 acquires the position information D2 recorded in this way for the work performed by a person.

The work acquisition unit 212 acquires a plurality of work information D1s related to the work at each of the plurality of positions. In the present embodiment, basically, the management target in the work management system 1 is the work performed by the work machine (combine 4), so that the work information D1 acquired by the work acquisition unit 212 is used for the work of the work machine. Related work information D1. That is, the work acquisition unit 212 acquires a plurality of work information D1s related to the work for each position of the work machine (combine 4) during the work period. That is, since the work machine moves in the field F1 during the work period, it is possible to acquire a plurality of work information D1 related to the work for each position of the work machine as the work machine moves. In the present embodiment, each time the work period ends (the engine of the combine 4 as a work machine is switched from the on state to the off state), a plurality of work information D1s in the work period are transmitted from the work machine to the management server 2 as work information D1. Is sent. As a result, the work acquisition unit 212 acquires a plurality of work information D1s during the work period.

On the other hand, in the case where the work performed by a person, such as soil sampling for diagnosing soil characteristics, is to be managed by the work management system 1, the work acquisition unit 212 is performed by a person in the field F1. The work information D1 related to the work at each position will be acquired. In this case, for example, the worker (person) records the soil information regarding the soil characteristics, which is the analysis result of the soil collected at each position, as the work information D1. As an example, the work information D1 at this time may be recorded by being written in the storage unit 32 or the like of the user terminal 3, or may be recorded by being written in the data storage unit 22 of the management server 2 by the user terminal 3 or the like. It may be recorded directly in the management server 2. The work acquisition unit 212 acquires the work information D1 recorded in this way for the work performed by a person.

Further, in the present embodiment, the position information of the work machine (combine 4) included in the plurality of work information D1 is common to the plurality of position information D2. That is, in the present embodiment, since the work information D1 is information including the position information D2, the position information D2 (information on the position of the work machine) in the work information D1 is acquired by the position acquisition unit 211 as the position information D2. Make it common. Therefore, although the information processing unit 21 has a position acquisition unit 211 for acquiring the position information D2 and a work acquisition unit 212 for acquiring the work information D1, the position acquisition unit 211 is acquired by the work acquisition unit 212. The position information D2 is acquired by extracting the position information D2 from the work information D1. As a result, the position information D2 detected by the same position detection unit 494 in the work machine is the position information D2 acquired by the position acquisition unit 211 and the position information D2 in the work information D1 acquired by the work acquisition unit 212. It is also used as.

By providing the position acquisition unit 211 and the work acquisition unit 212 as described above, the management server 2 receives the work information D1 and the like received from the combine 4 (mounted terminal 49) via the communication network N1 in the data storage unit 22. It is stored and stored in the work information storage unit 221. Similarly, for the work performed by a person, the management server 2 stores and stores the acquired work information D1 and the like in the work information storage unit 221 of the data storage unit 22.

The area setting unit 213 sets the work area A1 corresponding to the field F1. The "work area" referred to in the present disclosure is a two-dimensional area set in the virtual space corresponding to the field F1 in which the work is performed, and is used for creating the map M1. That is, the area set on the virtual space for creating the map M1 corresponding to the field F1 existing in the real space is the work area A1. In the present embodiment, the area setting unit 213 sets the work area A1 corresponding to the field F1 based on the plurality of position information D2. That is, the work area A1 is automatically set based on the plurality of position information D2 in the work period of the work machine (combine 4) acquired by the position acquisition unit 211.

In the present embodiment, the area setting unit 213 sets the work area A1 based on the plurality of position information D2 after the end of the work period. That is, the area setting unit 213 does not set the work area A1 in real time during the work period, but after the end of the work period, the area setting unit 213 is based on a plurality of position information D2 corresponding to the position of the work machine in the work period. , The work area A1 is set. Information about the work area A1 set by the area setting unit 213 is stored in the work area storage unit 222.

More specifically, in the present embodiment, the area setting unit 213 has a first processing unit 201, a second processing unit 202, and a third processing unit 203. In other words, the work management system 1 according to the present embodiment includes a first processing unit 201, a second processing unit 202, and a third processing unit 203. The first processing unit 201 sets a candidate area A10 (see FIG. 7) as a candidate for the work area A1 corresponding to the field F1 based on a plurality of positioning points P1 (see FIG. 6) corresponding to the plurality of position information D2. Set. The second processing unit 202 sets a plurality of temporary sections B (see FIG. 7) in the candidate area A10. The third processing unit 203 defines the temporary section B in which the number of positioning points P1 included in the plurality of temporary sections B satisfies a predetermined condition as the exclusion section Be (see FIG. 7), and excludes the exclusion section Be from the candidate area A10. The work area A1 is set according to the remaining area.

The "candidate area" referred to in the present disclosure is a two-dimensional area set in the virtual space as a candidate for the work area A1 and is used for setting the work area A1. The candidate area A10 is just a candidate for the work area A1. Therefore, the candidate area A10 may be the work area A1 as it is, a part of the candidate area A10 may be the work area A1, and the candidate area A10 may not be the work area A1.

Further, the "predetermined condition" referred to in the present disclosure is a condition defined for the number of positioning points P1 included in the temporary section B, and is used for determining whether or not the temporary section B is an exclusion section Be. That is, among the temporary sections B, the temporary section B in which the number of positioning points P1 included in the temporary section B satisfies a predetermined condition is classified into the exclusion section Be. As an example, if the predetermined condition is that the number of included positioning points P1 is "0", the number of included positioning points P1 in the temporary section B is "0", that is, The temporary section B that does not include the positioning point P1 is the exclusion section Be.

In short, in the present embodiment, the area setting unit 213 performs the processing for setting the work area A1 in each of the first processing unit 201, the second processing unit 202, and the third processing unit 203, that is, three stages. It has a function to realize by dividing into the processing of. Through such three-step processing, the area setting unit 213 can set the work area A1 corresponding to the field F1 based on the plurality of position information D2. That is, the first processing unit 201 sets the candidate area A10 based on the plurality of position information D2, the second processing unit 202 sets a plurality of temporary sections B in the candidate area A10, and the third processing unit 203 sets the candidate area B. , The work area A1 is set from the candidate area A10 by using the temporary section B. As described above, the area setting unit 213 has a function of setting the work area A1 by using the candidate area A10 and the temporary section B.

The section setting unit 214 sets a plurality of sections K (see FIG. 12) in the work area A1. The "section" referred to in the present disclosure means an individual area after division when the work area A1 on the virtual space is divided into a plurality of areas. That is, the division setting unit 214 sets a plurality of divisions K by dividing (dividing) the work area A1 into a plurality of divisions K. The temporary section B used when setting the work area A1 in the area setting unit 213 also means an individual area after the division when the candidate area A10 on the virtual space is divided into a plurality of parts, like the section K. do.

The section setting unit 214 sets a plurality of sections K for the work area A1 set by the area setting unit 213. When the work area A1 is set in the three-step processing by the first processing unit 201, the second processing unit 202, and the third processing unit 203, the partition setting unit 214 is set by the third processing unit 203. A plurality of sections K will be set in the work area A1.

In the present embodiment, the partition setting unit 214 has a plurality of modes including the first mode, the second mode, and the third mode, and these modes can be switched according to the operation of the user. Then, the section setting unit 214 has a different method of setting a plurality of sections K depending on the mode. As an example, in the first mode, the section setting unit 214 sets a section K having a predetermined shape such as a square shape. That is, in the first mode, a plurality of sections K are fixedly (statically) set with respect to the work area A1 regardless of the arrangement of the positioning points P1 in the work area A1. On the other hand, in the second mode and the third mode, the section setting unit 214 sets the section K according to the arrangement of the positioning point P1 in the work area A1. That is, in the second mode and the third mode, a plurality of sections K are dynamically set for the work area A1 so as to change the section K according to the arrangement of the positioning points P1 in the work area A1. To.

That is, in the present embodiment, when the second mode or the third mode is selected, the section setting unit 214 has the work area A1 corresponding to the field F1 and the plurality of positioning points P1 corresponding to the plurality of position information D2. A plurality of sections K that change according to the arrangement in the work area A1 of the above are set. The plurality of sections K set in this way are not always the same even for the same work area A1, and will change depending on the position information D2. That is, if the position information D2 changes, the arrangement of the positioning point P1 corresponding to the position information D2 in the work area A1 changes, and as a result, the plurality of sections K set in the work area A1 also change.

In particular, in the second mode, the section setting unit 214 divides the work area A1 by a connection line L1 (see FIG. 16) connecting two adjacent positioning points P1 among the plurality of positioning points P1. , Set a plurality of compartments K. More specifically, in the second mode, the partition setting unit 214 creates a Delaunay diagram G1 (see FIG. 16) using a plurality of positioning points P1 in the work area A1, and connects the Delaunay side of the Delaunay diagram G1. By setting L1, a plurality of sections K are set. As described above, by setting the individual areas obtained by creating the Delaunay diagram G1 using the positioning points P1 as the division K, a plurality of positioning points P1 that change according to the arrangement in the working area A1. Section K is set.

Further, in the third mode, the section setting unit 214 separates the work area A1 from any two positioning points P1 among the plurality of positioning points P1 corresponding to the plurality of position information D2 (FIG. FIG. By dividing in 19), a plurality of sections K are set in the work area A1. More specifically, in the third mode, the partition setting unit 214 creates a Voronoi diagram G2 (see FIG. 19) using a plurality of positioning points P1 in the work area A1, and divides the Voronoi boundary of the Voronoi diagram G2. By setting L2, a plurality of sections K are set. As described above, by setting the individual regions obtained by creating the Voronoi diagram G2 using the positioning points P1 as the division K, a plurality of positioning points P1 that change according to the arrangement in the working area A1. Section K is set.

The data calculation processing unit 215 calculates the work data of each of the plurality of sections K in the work area A1 based on the work information D1 acquired by the work acquisition unit 212. The data calculation processing unit 215 associates the data calculation processing unit 215 with the one section K by executing arithmetic processing on the work information D1 corresponding to the positioning point P1 included in one of the plurality of sections K. Calculate the work data to be done. That is, the data calculation processing unit 215 acquires the actual information (harvest amount information) corresponding to the plurality of sampling positions (positioning points P1) in the section K for each section K, and for example, the harvest amount per unit area. Calculate (g / m ² ) as work data. The data calculation processing unit 215 calculates the work data (harvest amount per unit area) for each section K based on the work information D1 acquired at the sampling interval (for example, 5 second interval).

The map generation unit 216 generates a map M1 in which work data based on a plurality of work information D1s are associated with a plurality of sections K for each work area A1. The "map" referred to in the present disclosure is data in which work data such as yield data (harvest amount information) is assigned to each of a plurality of sections K set in the work area A1. In the present embodiment, the map generation unit 216 generates the map M1 by associating the work data (harvest amount per unit area) calculated by the data calculation processing unit 215 with the plurality of sections K, for example. That is, for example, the map generation unit 216 generates a map M1 (yield map) representing the distribution of the yield in the field F1. According to such a map M1, the user can grasp the harvest state of the entire field F1 by checking the map M1. Such a map M1 is used, for example, for the purpose of evaluating the harvest state of the field F1 and planning the harvesting work for the next year.

The display processing unit 217 executes a process of displaying the map M1 and the like generated by the map generation unit 216. In the present embodiment, the display processing unit 217 generates a display screen Im1 (see FIG. 14) including the map M1 and causes the display unit (operation display unit 33) of the user terminal 3 to display the display screen Im1. The "screen" such as the display screen Im1 in the present disclosure means an image (image) displayed on the display unit, and includes an image, a figure, a photograph, a text, a moving image, and the like. Therefore, the information processing unit 21 can display or transmit the work information D1 and the like stored in the data storage unit 22 in response to an operation by the user on the operation reception unit 23, for example.

As an example in the present embodiment, the display processing unit 217 can display various web pages on the user terminal 3 by generating various web pages and transmitting the information of the web pages to the user terminal 3. Is. Further, as another aspect, the display processing unit 217 displays various web pages on the control unit 31 of the user terminal 3 by transmitting data necessary for displaying various web pages on the user terminal 3. You may let it run.

The information processing unit 21 functions as the various functional units (processing units) by executing various processes according to the work management program on the CPU (Central Processing Unit). Further, at least a part of the various functional units in the information processing unit 21 may be composed of an electronic circuit. Further, the work management program may be a program for making a plurality of processors function as functional units. The operation of each functional unit will be described in detail in the column of "[5] Work management method".

[4] User Terminal Next, the configuration of the user terminal 3 will be described in detail with reference to FIG. The user terminal 3 includes a control unit 31, a storage unit 32, an operation display unit 33, a communication unit 34, and the like. The user terminal 3 is, for example, an information processing device (communication terminal) such as a mobile phone, a smartphone, a tablet terminal, or a personal computer.

The communication unit 34 is a communication interface having a communication function with an external device such as the management server 2. Specifically, the communication unit 34 connects the user terminal 3 to the communication network N1 by wire or wirelessly, and performs data communication according to a predetermined communication protocol with the management server 2 or the like via the communication network N1. Execute.

The operation display unit 33 is a user interface including a display unit such as a liquid crystal display or an organic EL display for displaying various information, and an operation unit such as a touch panel, a mouse, or a keyboard. The operation display unit 33 displays various information to the user and accepts various operations by the user, for example. In particular, in the present embodiment, the user terminal 3 has a browser function, and the operation display unit 33 can display information such as various web pages.

The storage unit 32 is a non-volatile storage unit such as an HDD, SSD, or flash memory that stores various types of information. For example, a control program such as a browser program is stored in the storage unit 32. Specifically, the browser program is a control program for causing the control unit 31 to execute communication processing with an external device such as the management server 2 according to a communication protocol such as HTTP (Hypertext Transfer Protocol). Further, the control program may be a dedicated application for executing communication processing with the management server 2 according to a predetermined communication protocol.

The control unit 31 is a computer system having one or more processors such as a CPU (Central Processing Unit) and one or more memories such as a ROM (Read Only Memory) and a RAM. The CPU is a processor that executes various arithmetic processes. The ROM is a non-volatile memory in which control programs such as a BIOS (Basic Input Output System) and an OS (Operating System) for causing a CPU to execute various processes are stored in advance. The RAM is a volatile or non-volatile memory that stores various types of information, and is used as a temporary storage memory (work area) for various processes executed by the CPU. Then, the control unit 31 controls the user terminal 3 by executing various control programs stored in advance in the ROM or the storage unit 32 on the CPU.

Specifically, the control unit 31 functions as the browser processing unit 311 by executing various processes according to the browser program stored in the storage unit 32. The browser processing unit 311 may execute a browser processing for displaying a web page provided from the management server 2 via the communication network N1 on the operation display unit 33 and inputting an operation for the operation display unit 33 to the management server 2. It is possible. That is, the user terminal 3 can function as an operation terminal of the management server 2 by executing the browser program by the control unit 31.

More specifically, in the user terminal 3, the user operates to request access to a predetermined URL corresponding to the website (work support site) of the work support service provided by the management server 2. Then, the following operation is started. That is, when the above operation is performed, the user terminal 3 acquires the data of the web page of the work support site from the management server 2 in the control unit 31. At this time, for example, the user gives an instruction to display various screens (display screen Im1 and registration screen Im2, etc.) on the work support site displayed on the user terminal 3, so that the user terminal 3 is instructed to display various screens. Is displayed on the operation display unit 33. Various screens can be displayed on the user terminal 3 by logging in to the work support site on the user terminal 3.

Here, the operation for requesting access to the predetermined URL is realized, for example, by a user's selection operation from a list of pre-registered websites, a text input operation, or the like. Further, when the dedicated application corresponding to the management server 2 is installed in the user terminal 3, the user performs an operation to start the dedicated application to request access to a predetermined URL, and the operation display unit 33 The work support site is displayed in.

As long as the user terminal 3 can communicate with the management server 2, the user can check the work support site on the user terminal 3 from anywhere, and can check the information related to the work by the work machine.

Here, the user who uses the user terminal 3 may or may not be the same person as the operator who operates (operates) the work machine (combine 4). Further, regarding the user who uses the user terminal 3, a single user may be set for one field F1 such as the owner of the field F1, or a plurality of users may be set for one field F1. It may be set. In the latter case, for example, even in one field F1, it is possible to set different users for each work. Further, the user may be either an individual or a corporation, or may be an organization (organization) composed of a plurality of individuals or a group of corporations. Further, one user terminal 3 may be provided for one user, one may be provided for a plurality of users, or a plurality of user terminals 3 may be provided for one user. When one user terminal 3 is provided for a plurality of users, each of the plurality of users can be identified by, for example, a user ID or the like.

[5] Work Management Method Hereinafter, an example of a work management method executed mainly by the information processing unit 21 of the management server 2 will be described with reference to FIGS. 6 to 21. Hereinafter, unless otherwise specified, it is assumed that the harvesting work by the combine 4 which is a work machine is subject to the management by the work management method.

Further, since the work management method according to the present embodiment is executed by the information processing unit 21 whose main configuration is a computer system, in other words, it is embodied in a work management program. That is, the work management program according to the present embodiment is a computer program for causing one or more processors to execute each process related to the work management method. Such a work management program may be executed in cooperation with, for example, the information processing unit 21 of the management server 2 and the control unit 491 of the combine 4.

[5.1] Work area setting process First, the "work area setting process" for setting the work area A1 will be described. In the present embodiment, there are two types of operation modes of the area setting unit 213: a first operation mode in which the work area A1 is automatically set (specified) and a second operation mode in which the work area A1 is manually set. There is a mode. Then, the area setting unit 213 can switch between the first operation mode and the second operation mode according to the user's operation accepted by the operation reception unit 23. That is, in the present embodiment, regarding the setting of the work area A1, there are two types of setting methods, automatic setting and manual setting. Therefore, in the following, the setting process of the work area A1 by the area setting unit 213 will be described separately for the first operation mode (automatic setting) and the second operation mode (manual setting).

[5.1.1] Automatic setting of work area First, the setting process of the work area A1 will be described when the operation mode of the area setting unit 213 is in the first operation mode, that is, when the work area A1 is automatically set. ..

In the first operation mode, the area setting unit 213 sets the work area A1 corresponding to the field F1 based on the plurality of position information D2, for example, as shown in FIGS. 6 to 8. In FIGS. 6 to 8, each position on the virtual space corresponding to the position information D2 of the work machine (combine 4) acquired at the sampling interval is designated as a positioning point P1, and each positioning point P1 is indicated by a black dot mark. .. Further, FIGS. 6 to 8 show how two work areas A1 corresponding to the two fields F1 of the first field F11 and the second field F12 exemplified in FIG. 4 are set. That is, in FIG. 8, the first working area A11 corresponds to the first field F11, and the second working area A12 corresponds to the second field F12.

Here, as an example, it is assumed that when the combine 4 moves along the movement locus R1, the position information D2 acquired at the sampling interval is obtained during the work period. More specifically, as shown in the drawing on the left side of FIG. 6, the combine 4 first moves to the first field F11 through the farm road, performs work (harvesting work) in the first field F11, and then the farm road. It moves to the second field F12 through the passage and works in the second field F12. Therefore, the movement locus R1 indicates the movement of the combine 4 in the order of the farm road, the first field F11, the farm road, and the second field F12. The area setting unit 213 automatically sets the work area A1 based on the plurality of position information D2 obtained in such a situation.

When setting the work area A1, the information processing unit 21 acquires a plurality of position information D2 used for setting the work area A1 by the position acquisition unit 211. In the present embodiment, the position acquisition unit 211 acquires the position information D2 by extracting the position information D2 from the work information D1 acquired by the work acquisition unit 212.

When a plurality of position information D2s are obtained, the area setting unit 213 sets a plurality of positioning points P1 corresponding to the plurality of position information D2s, as shown in the central drawing of FIG. That is, the area setting unit 213 sets the positioning point P1 corresponding to each position for each sampling interval of the work machine (combine 4) in the virtual space. In this embodiment, as an example, the coordinates in the virtual space are associated with the latitude and longitude in the real space. Therefore, the area setting unit 213 sets the positioning point P1 at each position corresponding to the position indicated by the position information D2 in the virtual space by using the latitude and longitude information included in the position information D2. The positioning point P1 is set, for example, by the first processing unit 201. As a result, a set of positioning points P1 scattered on the locus (movement locus R1) on which the combine 4 has moved during the work period can be obtained.

When a plurality of positioning points P1 are set, the area setting unit 213 is a candidate area A10 which is a candidate for the work area A1 corresponding to the field F1 based on the plurality of positioning points P1 in the first processing unit 201. To set. However, in the present embodiment, the first processing unit 201 executes an unnecessary point exclusion process for excluding unnecessary points from a plurality of positioning points P1 before setting the candidate area A10. That is, the first processing unit 201 sets the candidate area A10 using the positioning points P1 excluding the positioning points P1 (unnecessary points) that satisfy the unnecessary conditions among the plurality of positioning points P1. In the present embodiment, as an example, the first processing unit 201 performs two-step unnecessary point exclusion processing.

In the unnecessary point exclusion process of the first stage, the first processing unit 201 excludes the positioning point P1 not related to the work as an unnecessary point by referring to the vehicle speed information, the clutch information, and the like in the operation information. That is, the first processing unit 201 refers to the work information D1 corresponding to the position information D2 represented by each positioning point P1, and the positioning point P1 is based on the vehicle speed information, the clutch information, and the like in the operation information included in the work information D1. Judge whether or not is an unnecessary point. The unnecessary condition includes, for example, that the vehicle speed of the work machine is equal to or higher than the determination threshold value, and the first processing unit 201 indicates that the vehicle speed indicated by the vehicle speed information corresponding to a certain positioning point P1 is equal to or higher than the determination threshold value. It is determined that the positioning point P1 is an "unnecessary point" that satisfies the unnecessary condition.

In the unnecessary point exclusion process of the second stage, the first processing unit 201 excludes the positioning point P1 not related to the work as an unnecessary point by using the density of the positioning point P1 in the virtual space such as the vicinity of K or the point density as an index. do. That is, the first processing unit 201 determines whether or not each positioning point P1 is an unnecessary point from the density of the positioning points P1 on the virtual space. The unnecessary condition includes, for example, that the density of the positioning point P1 is less than the determination threshold value, and if the density when focusing on a certain positioning point P1 is less than the determination threshold value, the first processing unit 201 includes this positioning. It is determined that the point P1 is an "unnecessary point" that satisfies the unnecessary condition.

By such unnecessary point exclusion processing, as shown in the drawing at the right end of FIG. 6, only the positioning point P1 excluding the positioning point P1 (unnecessary point) not related to the work in the field F1 from the state in the center of FIG. Will remain. For example, the positioning point P1 or the like indicating the position of the combine 4 moving along the farm road toward the first field F11 or the second field F12 is excluded as an unnecessary point. As a result, in the first processing unit 201, the candidate area A10 can be set based only on the positioning point P1 related to the work in the field F1 among the plurality of positioning points P1, and the area other than the field F1 is a candidate. It becomes difficult to be included in the region A10.

The first processing unit 201 groups a plurality of positioning points P1 whose temporal and / or spatial intervals are equal to or less than a set value (parameter) among the plurality of positioning points P1 in the state at the right end of FIG. That is, since the time (time information) at which the work machine is located at the positioning point P1 can be specified from the work information D1 corresponding to the position information D2 represented by each positioning point P1, two positionings are performed based on this time information. The time interval (time difference) between the points P1 is derived. In addition to or instead of such a temporal interval, paying attention to the spatial interval (distance) of the two positioning points P1 on the virtual space, the interval of the first processing unit 201 is equal to or less than the set value. A plurality of positioning points P1 are grouped to generate a point cloud, and the point cloud is used as a section. Here, the first processing unit 201 generates M sections (M is an integer of 0 or more) composed of a set (point group) of a plurality of positioning points P1.

At this time, if the set value (parameter) to be compared with the temporal and / or spatial interval is set small, it corresponds to the first field F11 and the second field F12 as shown at the right end of FIG. The plurality of positioning points P1 dispersed therein are classified into two sections. However, in the present embodiment, the set value (parameter) is set to a relatively large value. Therefore, even a plurality of positioning points P1 as shown at the right end of FIG. 6 are all integrated into one section.

Then, the first processing unit 201 uses a set (point group) of a plurality of positioning points P1 for each section to select a candidate area A10 that is a candidate for the work area A1 as shown in the leftmost drawing of FIG. Set. In the present embodiment, the first processing unit 201 sets the candidate region A10 by using the convex hull processing for the plurality of positioning points P1. As a result, a convex hull, which is a figure that covers a group of points consisting of a plurality of positioning points P1 belonging to each section on the virtual space without dents, that is, the smallest convex that encloses the point group on the virtual space. The polygon is set as the candidate area A10. In short, the smallest convex polygon surrounding the point cloud on the movement locus R1 of the work machine in the field F1 is set as the candidate region A10. At this time, in the present embodiment, since the plurality of positioning points P1 dispersed corresponding to the first field F11 and the second field F12 are aggregated in one section, only one candidate region A10 is generated. .. Such a candidate region A10 includes a region corresponding to the first field F11 and a region corresponding to the second field F12.

When the candidate area A10 is set, next, the area setting unit 213 sets a plurality of temporary sections B in the candidate area A10 in the second processing unit 202 as shown in the central drawing of FIG. 7. As an example, the second processing unit 202 sets a plurality of temporary compartments B so that the entire candidate region A10 is divided into a plurality of temporary compartments B in a mesh shape, as shown in FIG. 7. FIG. 7 schematically shows a state in which the candidate region A10 is divided into a plurality of temporary compartments B. For example, each temporary section B is a square area of 10 m × 10 m in terms of actual size in the corresponding field F1. However, the shape and size of each temporary compartment B are not particularly limited.

In the present embodiment, the size of each of the plurality of temporary compartments B is variable. Specifically, the second processing unit 202 specifies the size of each temporary section B according to the user's operation received by the operation reception unit 23. As a result, the temporary compartment B can be set to an arbitrary size. For example, when the sampling interval is long or the vehicle speed of the work machine is high, the spatial interval (distance) between two adjacent positioning points P1 becomes large, so it is preferable to set the temporary section B (size) large. ..

Here, as an example in the present embodiment, the second processing unit 202 sets a plurality of temporary sections B by dividing the candidate area A10 by a virtual line along the outer circumference of the candidate area A10. That is, the mesh (virtual line) direction of the mesh that divides the candidate area A10 into the plurality of temporary sections B is set along the outer circumference of the candidate area A10. As a result, for example, a plurality of temporary sections B can be set along the shore direction of the field F1, and the outer shape of the work area A1 set by the third processing unit 203 can be easily aligned with the shore direction. ..

Further, the direction in which the plurality of temporary sections B are set is not limited to the above, and as another example, the second processing unit 202 divides the candidate area A10 by a virtual line along the movement locus R1 of the work machine. Therefore, a plurality of temporary compartments B may be set. That is, the mesh (virtual line) direction of the mesh that divides the candidate area A10 into the plurality of temporary sections B is the movement locus R1 of the work machine in the candidate area A10, that is, the line connecting the temporally continuous positioning points P1. It is set to follow. As a result, for example, a plurality of temporary sections B can be set along the ridge direction of the field F1, and the outer shape of the work area A1 set by the third processing unit 203 can be easily aligned with the ridge direction. ..

When a plurality of temporary compartments B are set, the area setting unit 213 then, in the third processing unit 203, sets the plurality of temporary compartments B as the exclusion compartment Be as shown in the drawing at the right end of FIG. Classify as other than the exclusion section Be. In the drawing at the right end of FIG. 7, the area classified into the exclusion section Be among the plurality of temporary sections B is shown in white. Here, the third processing unit 203 classifies the temporary section B in which the number of positioning points P1 included among the plurality of temporary sections B satisfies a predetermined condition into the exclusion section Be. In the present embodiment, as an example, the predetermined condition is that the number of positioning points P1 to be included is "0". Therefore, in the third processing unit 203, among the temporary sections B, the temporary section B that includes the positioning points P1 is “0”, that is, the temporary section B that does not include the positioning points P1 is classified into the exclusion section Be. Here, the temporary section B set in the area corresponding to neither the first field F11 nor the second field F12 is classified into the exclusion section Be.

Then, as shown in the drawing on the left side of FIG. 8, the third processing unit 203 sets the work area A1 by the area remaining after excluding the exclusion section Be from the candidate area A10. That is, the third processing unit 203 removes the area classified into the exclusion section Be from the candidate area A10, so that only the area classified other than the exclusion section Be remains. The remaining area of the candidate area A10 belonging to the temporary section B other than the excluded section Be is set as the work area A1.

Here, in the present embodiment, only one candidate region A10 is generated so as to include a region corresponding to the first field F11 and a region corresponding to the second field F12. Then, since the temporary section B set in the area corresponding to neither the first field F11 nor the second field F12 is excluded as the exclusion section Be, the first field F11 and the second field of the candidate areas A10 are excluded. The area between F12 and F12 will be excluded. Since the candidate area A10 is divided into two areas by excluding the exclusion section Be in this way, the third processing unit 203 sets each of these two areas in the work area A1. That is, the third processing unit 203 divides the candidate area A10 into two or more areas by excluding the exclusion section Be, and sets the work area A1 by each of the two or more areas.

Further, in the present embodiment, the third processing unit 203 sets a region that satisfies the exclusion condition for at least one of the area and the number of positioning points P1 included in the region remaining after excluding the exclusion zone Be from the candidate region A10. , Exclude from work area A1. The exclusion conditions are, for example, that the area is equal to or less than the exclusion threshold and / or that the number of positioning points P1 to be included is equal to or less than the exclusion threshold. That is, when the area remaining after excluding the exclusion section Be from the candidate area A10 is extremely small and / or the number of positioning points P1 to be included is extremely small, such an area is excluded from the work area A1. Will be done.

Finally, as shown in the drawing on the right side of FIG. 8, the area setting unit 213 sets the work area A1 corresponding to the first field F11 and the work area A1 corresponding to the second field F12, respectively. That is, the first working area A11 having substantially the same shape as the outer shape of the first field F11 is set, and the second working area A12 having substantially the same shape as the outer shape of the second field F12 is set.

When the setting of the work area A1 is completed, the area setting unit 213 registers (outputs) the set work area A1 in the work area storage unit 222 to register the work area A1. Specifically, the work area A1 is registered by storing the information necessary for reproducing the work area A1 in the virtual space in the work area storage unit 222. In the present embodiment, the information for specifying the position and shape of the work area A1 on the coordinates set in the virtual space, that is, the coordinate information of the outline of the work area A1 is stored as the information regarding the work area A1. It is stored in the unit 222. In this embodiment, as an example, the coordinates in the virtual space are associated with the latitude and longitude in the real space. Therefore, the work area A1 is registered in the work area storage unit 222 using the latitude and longitude of the corresponding field F1.

Further, in the present embodiment, the area setting unit 213 has, as information regarding the set work area A1, for example, a work name for specifying the type (content) of the work, and time information regarding the work (as an example, the start date and time and the end). The date and time) and the like are also stored in the work area storage unit 222. As a result, when registering the work area A1, the work area A1 is associated with the work name and time information of the work performed in the field F1 corresponding to the work area A1 in the work area storage unit 222. It will be stored. Therefore, for example, even for the same field F1, individual work areas A1 can be set according to the work name, the year, and the like.

FIG. 9 is a flowchart showing an example of the operation of the information processing unit 21 related to the automatic setting of the work area A1 described above.

That is, first, in step S1, the information processing unit 21 determines whether or not the work information D1 including the position information D2 has been acquired from the combine 4 which is a work machine. When it is determined that the work information D1 in the work period has been acquired (S1: Yes), the process proceeds to step S2. The information processing unit 21 waits until the work information D1 is acquired (S1: No). When the information processing unit 21 (work acquisition unit 212) acquires the work information D1 from the combine 4, the information processing unit 21 stores the work information D1 in the work information storage unit 221 (see FIG. 5).

In step S2, the information processing unit 21 extracts the position information D2 from the work information D1. As a result, the information processing unit 21 (position acquisition unit 211) acquires the position information D2 during the working period.

Next, in step S3, the information processing unit 21 sets a plurality of positioning points P1 using the position information D2 acquired by the first processing unit 201. Next, in step S4, the information processing unit 21 refers to the vehicle speed information, the clutch information, etc. in the operation information in the first processing unit 201 as the unnecessary point exclusion processing in the first stage, and positions the information not related to the work. Point P1 is excluded as an unnecessary point. Next, in step S5, in the second stage unnecessary point exclusion process, the information processing unit 21 uses the density of the positioning point P1 in the vicinity of K or in the virtual space such as the point density as an index in the first processing unit 201. , The positioning point P1 not related to the work is excluded as an unnecessary point.

Next, in step S6, the information processing unit 21 has M (M is 0 or more) positioning points P1 excluding the positioning points P1 (unnecessary points) that are not related to the work in the field F1 in the first processing unit 201. (Integer) section. At this time, the first processing unit 201 classifies the plurality of positioning points P1 whose temporal and / or spatial intervals are equal to or less than the set value (parameter) into the same section.

Then, the information processing unit 21 executes the work area setting loop of steps S7 to S15 for each section, and repeats the work area setting loop until the setting process of the work area A1 for all the sections is completed. When the work area setting loop starts (S7), the information processing unit 21 first determines in step S8 whether or not the number of positioning points P1 included in the section is larger than N (where N is an arbitrary integer). If the number of positioning points P1 included in the section is larger than N (S8: Yes), the process proceeds to step S9. On the other hand, if the number of positioning points P1 included in the section is N or less (S8: No), the process proceeds to step S7 without setting the work area A1 for the section.

In step S9, the information processing unit 21 uses the density of the positioning point P1 in the vicinity of K or in the virtual space such as the point density as an index in the first processing unit 201, and sets the positioning point P1 not related to the work as an unnecessary point. exclude.

Next, in step S10, the information processing unit 21 performs convex hull processing on the plurality of positioning points P1 in the first processing unit 201, and sets the candidate area A10. Next, in step S11, the information processing unit 21 sets a plurality of temporary sections B in the candidate area A10 in the second processing unit 202. Next, in step S12, the information processing unit 21 classifies the plurality of temporary sections B into exclusion sections Be and other than the exclusion section Be in the third processing section 203. At this time, the third processing unit 203 sets the temporary section B whose number of positioning points P1 to be included is “0” as the exclusion section Be, and excludes the exclusion section Be from the candidate area A10. As a result, the candidate area A10 is divided into two or more areas by excluding the exclusion section Be, and the work area A1 is set by each of the two or more areas.

Next, in step S13, the information processing unit 21 excludes the area satisfying the exclusion condition from the work area A1 in the third processing unit 203. As an example, the third processing unit 203 excludes the area of the "minimum area" whose area is equal to or less than the exclusion threshold value from the work area A1. Next, in step S14, the information processing unit 21 calculates a key performance indicator (KPI) of the work area A1 based on the work information D1. The KPI calculated at this time is the working time or the yield for the working area A1.

When the work area setting loop of steps S7 to S15 described above is executed for all the sections, the process shifts to step S16. In step S16, the information processing unit 21 outputs information (data) related to the work area A1 in the area setting unit 213. Specifically, the area setting unit 213 registers (outputs) the set work area A1 in the work area storage unit 222 to register the work area A1.

As described above, the information processing unit 21 executes a series of processes related to the automatic setting of the work area A1. However, the flowchart shown in FIG. 9 is only an example, and the processes may be added or omitted as appropriate, or the order of the processes may be changed as appropriate. For example, step S8 may be executed after step S11.

By the way, as the first related technique, the area setting unit 213 can automatically set the work area A1 without using the candidate area A10 and the temporary section B. That is, in the first related technique, the area setting unit 213 can obtain the work area A1 by performing the convex hull processing on the plurality of positioning points P1 classified into the sections. However, in the first related technology, it is necessary to set the set value (parameter) to be compared with the temporal and / or spatial interval according to many factors such as the speed (vehicle speed) of the work machine, the user and the environment. Therefore, it is difficult to set the set value (parameter) properly.

That is, in the first related technique, as shown in FIG. 10, if the parameter (set value) is larger than the appropriate value, the plurality of fields F1 may be determined as one work area A1. On the contrary, if the parameter (set value) is smaller than the appropriate value, one field F1 may be determined as a plurality of work areas A1. As described above, in the first related technique, if the parameter (set value) is not properly set, the specific accuracy of the work area A1 may decrease.

On the other hand, in the work management system 1 according to the present embodiment, by setting the work area A1 using the candidate area A10 and the temporary section B, even if the parameter (set value) itself is set to be large. good. That is, by setting the parameter (set value) itself to be large, even if a plurality of fields F1 are included in one candidate area A10, the temporary section B determined to be the exclusion section Be is excluded from the candidate area A10. Therefore, it is easy to set the area corresponding to the field F1 as the work area A1. As a result, according to the work management system 1 according to the present embodiment, there is an advantage that the specific accuracy of the work area A1 is unlikely to decrease.

[5.12] Manual setting of the work area Next, the setting process of the work area A1 when the operation mode of the area setting unit 213 is in the second operation mode, that is, when the work area A1 is manually set, will be described. do.

In the second operation mode, the area setting unit 213 sets the work area A1 corresponding to the field F1 according to the user's operation received by the operation reception unit 23, for example. As an example, the area setting unit 213 sets the work area A1 corresponding to the field F1 according to the operation of the user who sets the work area A1 on the registration screen Im2 as shown in FIG. The registration screen Im2 includes at least one field F1. The registration screen Im2 is displayed on the display unit (operation display unit 33) of the user terminal 3, for example, on the display processing unit 217. On the registration screen Im2, the user sets the arbitrary range in the work area A1 by, for example, performing an operation of designating an arbitrary range with a cursor or the like.

That is, in the example of FIG. 11, when the user performs an operation of designating a range corresponding to the first field F11 on the registration screen Im2, the first work area A11 having substantially the same shape as the first field F11 is set. .. Similarly, when the user performs an operation of designating a range corresponding to the second field F12 on the registration screen Im2, the second work area A12 having substantially the same shape as the outer shape of the second field F12 is set. Further, on the registration screen Im2, operations such as scrolling, enlargement / reduction, and page switching can be performed according to the user's operation. Further, the designation of the work area A1 on the registration screen Im2 may be realized, for example, by inputting the latitude and longitude.

Also in the second operation mode, when the setting of the work area A1 is completed, the area setting unit 213 registers the work area A1 by storing the information about the set work area A1 in the work area storage unit 222.

[5.2] Map generation process Next, a "map generation process" for generating (creating) a map M1 in which work data based on a plurality of work information D1s are associated with a plurality of sections K will be described. .. In the present embodiment, there are various methods for setting the section K by the section setting unit 214, but here, a case where a plurality of sections K are set by simply dividing the work area A1 into a mesh shape is used. As an example, the generation process of the map M1 will be described.

The map generation unit 216 generates the map M1 by associating the work data based on the plurality of work information D1 with the plurality of sections K. That is, the map generation unit 216 divides the work area A1 into a plurality of sections K, and then generates map information data regarding work data (for example, the yield per unit area) for each section K. In the present embodiment, the map generation unit 216 is a map for embodying the map M1 by associating the work data calculated by the data calculation processing unit 215 based on the plurality of work information D1 with each section K. Generate informational data. The generated map information is stored in, for example, the data storage unit 22.

As an example, the map M1 is created by dividing the entire work area A1 into a plurality of sections K in a mesh shape and calculating the yield (average yield, etc.) of each section K. FIG. 12 schematically shows a state in which the work area A1 is divided into a plurality of sections K. For example, each section K is a square area of 5 m × 5 m in terms of actual size in the corresponding field F1. However, the shape and size of each section K are not particularly limited. In FIG. 12, coordinate information (section number) of the X coordinate (X axis) and the Y coordinate (Y axis) is attached as the identification information of each section K.

Specifically, the map generation unit 216 generates map information including information such as the corresponding "section number" and "work data" for each section K of the work area A1. The section number is the identification information of the section K. As a result, the work data (for example, the yield per unit area) calculated by the data calculation processing unit 215 is registered for each section K. The information processing unit 21 acquires a plurality of work information D1 corresponding to a plurality of sampling positions in the section K for each section K, and calculates, for example, the yield per unit area (g / m ² ). Record as work data for map information. Each work data registered in the map information may be a representative value of the work information in each section K, and is not limited to an average value such as the yield per unit area, but the total value, the median value, and the median value in each section K. It may be a representative value such as a mode value, a maximum value, or a minimum value. As an example, when the work information D1 includes the harvest amount information as the actual information, the work data may be the total value (cumulative value) of the harvest amount in each section K.

Here, if the section setting unit 214 is the first mode for setting the section K having a predetermined shape, the number of sampling positions included in one section K may differ depending on the section K. In this case, it is preferable that the work data is calculated equally among the plurality of compartments K regardless of the number of sampling positions included in the compartments K. For example, when the work data is the total value (cumulative value) of the yields in each section K, if a plurality of work information D1s in the section K are simply accumulated, the work data becomes larger in the section K having a larger number of sampling positions. Therefore, inequality occurs among a plurality of compartments K. Therefore, the data calculation processing unit 215 normalizes the plurality of work information D1 corresponding to the section K by multiplying by a coefficient corresponding to the number of sampling positions, or works information for the section K having a small number of sampling positions. It is preferable to interpolate D1. Similarly, when the yield per unit area is used as the work data, the data calculation processing unit 215 calculates the cumulative yield normalized or interpolated for each section K, and then calculates the cumulative yield in the area of the section K. It is preferable to calculate the work data by dividing.

In this way, the map generation unit 216 creates the map M1 based on the work data of each section K as shown in FIG. FIG. 13 shows an example of the map M1. The map generation unit 216 creates the map M1 by associating the value of the work data with, for example, multi-gradation gray shades (gray scale). In the example shown in FIG. 13, for each section K, the lighter the color, the smaller the yield, and the darker the color, the higher the yield. This makes it possible to create a map M1 showing the distribution of the yield corresponding to the entire field F1. Further, the number of divisions K (division number) in the field F1 can be increased to create a high-definition map M1. The map generation unit 216 may or may not display the "numerical value" of the work data in each section K of the map M1.

The generated map M1 is displayed on the display screen Im1 by the display processing unit 217 as illustrated in FIG. That is, the display processing unit 217 causes the display screen Im1 including the map M1 to be displayed on, for example, the display unit (operation display unit 33) of the user terminal 3. The display screen Im1 in FIG. 14 includes a map image Im10, a first input field C1, a second input field C2, a third input field C3, and explanatory information C4. In FIG. 14, the alternate long and short dash line, leader line, and reference numeral representing the region are added for illustration purposes only and are not actually displayed on the display unit.

The map image Im10 is an image showing a map including the field F1, and may be realized by aerial photography, computer graphics, or the like. In the present embodiment, the display processing unit 217 displays the map M1 in the work area A1 corresponding to the field F1 in the map image Im10. That is, the map M1 generated by the map generation unit 216 is displayed on the corresponding field F1 in the map image Im10 of the display screen Im1. On the display screen Im1 illustrated in FIG. 14, the map M1 of the first work area A11 corresponding to the first field F11 is displayed. As a result, on the display screen Im1, the work status in the field F1 is visualized as a map M1 representing work data (for example, the yield per unit area) for each of the plurality of sections K on the map. The map in the map image Im10 can be, for example, scrolled, enlarged / reduced, and page-switched according to the user's operation.

The first input field C1 is an input field for inputting the first item of the map M1 to be displayed on the display screen Im1. The first item is a year (or year) as an example, and the year (or year) of the data displayed as the map M1 is specified by the year (or year) input in the first input field C1. The second input field C2 is an input field for inputting the second item of the map M1 to be displayed on the display screen Im1. The second item is a work name as an example, and the work name of the data displayed as the map M1 is specified by the work name input in the second input field C2. The third input field C3 is an input field for inputting the third item of the map M1 to be displayed on the display screen Im1. The third item is attribute information for specifying work data as an example, and the work data displayed as the map M1 is specified by the work input to the third input field C3. That is, the first item and the second item are items for specifying the work to be mapped, and the third item is an item for specifying the work data itself to be mapped. In the example of FIG. 14, the input formats of the first input field C1, the second input field C2, and the third input field C3 are all selective input formats to be selected from the default values, but the input format is not limited to this. It may be in an input format. Further, on the display screen Im1, in addition to or in place of the year (or year) and the work name, for example, the input of attribute information such as the work machine, the worker, and the crop to be used may be accepted.

The explanatory information C4 is information including the explanation of the work data in the map M1. Specifically, the explanatory information C4 is a legend showing how the multi-gradation gray shades (gray scale) in the map M1 are associated with the values of the work data. In the example of FIG. 14, the explanatory information C4 has a minimum value (lightest color) of 50.00 (kg / a) and a maximum value (darkest color) of the work data consisting of the yield per unit area. It shows that it is 110.00 (kg / a).

In this way, the display processing unit 217 displays the map M1 on the display screen Im1. The display processing unit 217 displays each of the plurality of sections K in the map M1 in a mode corresponding to the work data. In the example of FIG. 14, the display processing unit 217 classifies the work data into a plurality of (here, 7) gradations, and displays each of the plurality of sections K in gradations (shades) according to the values of the work data. As a result, the display is realized in a mode corresponding to the work data. However, not limited to this example, the display processing unit 217 sets each of the plurality of sections K in the map M1 as an embodiment according to the work data, for example, by using numbers, symbols, colors, graphs, or the like corresponding to the values of the work data. May be good.

Here, the map information for displaying the map M1 displayed on the display screen Im1 may be generated by the map generation unit 216 each time, or may be generated in advance. The map information generated in advance by the map generation unit 216 is included in the data table, for example, and stored in the data storage unit 22. The data table is a table in which data including map information is stored for each work. According to such a data table, for example, by selecting the work area A1 and designating the first item (year or year) and the second item (work name), map information related to any work can be obtained. Can be called. That is, for example, it is possible to search the map information related to any work on the data table by using the work area A1, the year or year, and the work name as keys.

Further, on the display screen Im1 shown in FIG. 14, the work area A1 is divided into a plurality of sections K, and then the map M1 showing the work data for each section K is displayed, but the present invention is not limited to this example. That is, for example, regarding information such as the used work machine, average work speed, variation in work speed, and work time, even if one work data is displayed on the display screen Im1 for one work area A1. good. In this case, for example, the work data for the work area A1 may be displayed by "solid painting" in which the work area A1 in the map image Im10 is uniformly filled.

[5.3] Section Setting Process Next, a "section setting process" for setting a plurality of sections K in the work area A1 will be described. The above-mentioned map M1 is generated by using a plurality of partitions K set by the process as described below. In the present embodiment, as the mode of the section setting unit 214, there is a first mode in which a plurality of sections K are fixedly set with respect to the work area A1, and a plurality of modes according to the arrangement of the positioning points P1 in the work area A1. There are three modes, a second mode and a third mode, in which the partition K is dynamically set. In particular, the section setting unit 214 sets the individual areas obtained by creating the Delaunay diagram G1 in the section K in the second mode, and in the third mode, the individual areas obtained by creating the Voronoi diagram G2. Set the area to partition K. Then, the section setting unit 214 can switch between the first mode, the second mode, and the third mode according to the operation of the user accepted by the operation reception unit 23. That is, in the present embodiment, there are three types of setting methods for setting the section K. Therefore, in the following, the setting process of the section K by the section setting unit 214 will be described separately for the first mode, the second mode, and the third mode.

[5.3.1] First Mode First, when the mode of the partition setting unit 214 is in the first mode, that is, regardless of the arrangement of the positioning points P1 in the work area A1, a plurality of modes are used for the work area A1. The setting process of the section K in the case of setting the section K fixedly will be described.

In the first mode, as shown in FIG. 15, the section setting unit 214 sets a section K having a predetermined shape such as a square shape for the work area A1 set by the area setting unit 213. .. Here, as an example, the section setting unit 214 sets a plurality of sections K by simply dividing the work area A1 into a mesh shape, as illustrated in the column of “[5.2] Map generation process”. .. That is, for example, the section setting unit 214 divides the entire work area A1 into a plurality of uniform sections K so that, for example, each section K becomes a square area of 5 m × 5 m in terms of actual size in the field F1. , A section K having a predetermined shape is set. In this case, since the section setting unit 214 sets a plurality of sections K regardless of the arrangement of the positioning points P1 in the work area A1, even if the arrangement of the positioning points P1 in the work area A1 changes. The plurality of sections K to be set do not change.

Further, the shape and size of each section K are not particularly limited. Further, in FIG. 15, an X-axis and a Y-axis along each side of the work area A1 are defined, and a plurality of sections K are set in the work area A1 along the X-axis and the Y-axis, but the present invention is limited to this example. do not have. That is, regardless of the direction of the work area A1, the section setting unit 214 has, for example, a straight line extending in the east-west direction as the X axis, a straight line extending in the north-south direction as the Y axis, and along the X axis and the Y axis. Therefore, a plurality of sections K may be set in the work area A1.

Further, in the present embodiment, when the mode of the section setting unit 214 is in the first mode, it is preferable that the plurality of sections K are common to the plurality of temporary sections B. That is, the plurality of sections K set in the work area A1 by the section setting unit 214 are the plurality of temporary sections B (right end in FIG. 7) set in the candidate area A10 by the area setting unit 213 when the work area A1 is set. It is preferable that it is common with the drawing of. More specifically, a plurality of temporary sections B set in the candidate area A10 on which the work area A1 is based are used for the plurality of sections K set in the work area A1. Since the plurality of temporary compartments B set in the candidate region A10 define the outer shape of the work area A1 generated from the candidate region A10, the plurality of compartments K are common to the plurality of temporary compartments B. A plurality of sections K along the outer shape of the area A1 are set. Therefore, when a plurality of sections K are set in the work area A1, each section K is unlikely to have a distorted shape, and the map M1 is easy to see.

However, even when the mode of the partition setting unit 214 is in the first mode, the fact that the plurality of partitions K are common to the plurality of temporary partitions B is not an essential configuration for the work management system 1, but in the first mode. Even if there is, a plurality of sections K may be set separately from the plurality of temporary sections B. As an example, even if the section K and the temporary section B are both square areas, the section K may be shorter than the temporary section B in terms of the length of one side, and conversely, the section K is a temporary section. It may be longer than B.

By the way, regardless of the method of setting the section K having a predetermined shape as described above, that is, the arrangement of the positioning points P1 in the work area A1, a plurality of sections K are fixedly set with respect to the work area A1. The following problems may occur in the setting method (hereinafter, also referred to as "second related technology").

When the map M1 is generated using the plurality of sections K, as described above, the work data based on the plurality of work information D1 corresponding to the plurality of sampling positions in the section K is associated with each section K. Here, as shown in FIG. 15, since the sampling position corresponds to the positioning point P1 set in the work area A1, the work data of each section K in the map M1 corresponds to the positioning point P1 included in the section K. It will be derived based on the work information D1. However, in the second related technique in which a plurality of sections K are fixedly set with respect to the work area A1, the position of the positioning point P1 in each section K may be biased or the number of the positioning points P1 may vary.

That is, as shown in FIG. 15, depending on the section K, the positioning point P1 may be located near the center of the section K or near the outer periphery of the section K, and the position of the positioning point P1 in each section K (sampling). Position) bias can occur. Further, as shown in FIG. 15, depending on the section K, the number of positioning points P1 included may be one or a plurality (two or more), and the positioning points P1 included in each section K. The number of (sampling numbers) also varies. Then, due to the bias of the position of the positioning point P1 or the variation in the number of the positioning points P1 in this way, the work data derived from the work information D1 corresponding to the positioning point P1 for each section K has a plurality of sections. It is difficult to ensure fairness among K. Further, depending on the section K, the number of included positioning points P1 may be 0, that is, there may be a section K that does not include the positioning point P1, so that there may be a section K from which work data is not derived.

Further, since the work data is derived for each section K as a representative value of the work information in each section K, the data (value) of each section K is uniquely represented by one work data on the map M1. .. In other words, each section K defines the effective range of the work data associated with the section K within the work area A1. That is, when the data sampled at a certain sampling position (work information D1), such as soil characteristics (including soil hardness and hard disk depth) and tillage depth, is also valid as data around it. , Section K will define the effective range of the data. Therefore, if the position of the positioning point P1 is biased in the section K, the effective range of the work data may not be accurately represented by the section K.

As described above, when the section K is predetermined as in the second related technique, the map M1 generated depends on the arrangement of the positioning points P1 in the work area A1 and the size and shape of the section K. The reliability of the data inside may be reduced. The work management system 1 according to the present embodiment solves the problem that may occur in such a second related technique by the setting process of the section K when the section setting unit 214 is in the second mode or the third mode. I'm trying.

[5.3.2] Second mode (Delaunay diagram)
Next, a section K setting process will be described when the mode of the section setting unit 214 is in the second mode, that is, when a plurality of sections K are set using the Delaunay diagram G1.

In the second mode, as shown in FIG. 16, the section setting unit 214 uses a plurality of positioning points P1 included in the work area A1 for the work area A1 set by the area setting unit 213. Each area obtained by creating FIG. G1 is defined as a section K. FIG. 16 shows an enlarged view of a part of Delaunay triangulation G1 in the blowout. The "Delaunay diagram" referred to in the present disclosure is obtained for a set of points (positioning points P1) discretely distributed in a metric space (working area A1), and they are connected by edges according to a certain method. It is a figure. Specifically, the Delaunay diagram G1 is a figure that generates a triangle having a plurality of positioning points P1 included in the work area A1 as vertices and divides the work area A1 into a plurality of triangular areas. As a condition at the time of creating the Delaunay diagram G1, division is performed so that the minimum values of the three angles of the generated triangle are maximized. Here, the connecting line L1 connecting the two positioning points P1 does not intersect with the other connecting lines L1, and the circumscribed circle of any of the generated triangles has the property of not including the other points. Further, no matter which adjacent triangles are integrated, the outer circumference thereof becomes a convex hull shape.

In short, in the second mode, the division setting unit 214 divides the work area A1 by the connection line L1 connecting two adjacent positioning points P1 among the plurality of positioning points P1, so that the division K To set. That is, the connection line L1 connecting the two positioning points P1 becomes the boundary line between the two adjacent sections K. In particular, in the present embodiment, since the division setting unit 214 uses the Delaunay diagram G1, the Delaunay side of the Delaunay diagram G1 is used as a connection line L1 as a boundary line between two adjacent divisions K, and a plurality of divisions K are used. To set. As described above, in the second mode, the individual areas obtained by creating the Delaunay diagram G1 using the positioning points P1 are set as the division K, so that the plurality of positioning points P1 can be arranged in the working area A1. A plurality of compartments K that change accordingly are set.

Therefore, in this case, the division setting unit 214 sets a plurality of divisions K according to the arrangement of the positioning points P1 in the work area A1, so that the arrangement of the positioning points P1 in the work area A1 is changed. If so, the plurality of sections K to be set also change. That is, a plurality of sections K are dynamically set for the work area A1 so that the sections K are changed according to the arrangement of the positioning points P1 in the work area A1.

Further, when the section setting unit 214 sets a plurality of sections K in the second mode, the work data associated with each section K is stored in the data calculation processing unit 215 at the positioning point P1 included in each section K. It is calculated by executing arithmetic processing on the corresponding work information D1. That is, the work data of each section K is calculated from the work information D1 corresponding to one or more positioning points P1 included in the section K by arithmetic processing in the data calculation processing unit 215. In the second mode, since the individual regions (triangles) obtained by creating the Delaunay diagram G1 are the divisions K, each division K includes the three positioning points P1 that are the vertices of the triangle. Therefore, the two compartments K divided by a certain connection line L1 include the two positioning points P1 located at both ends of the connection line L1. Therefore, the work information D1 corresponding to one positioning point P1 may be used to calculate the work data of the plurality of sections K.

Here, the arithmetic processing performed by the data calculation processing unit 215 for the work information D1 corresponding to the positioning point P1 included in each section K is, for example, an averaging process. That is, the arithmetic processing in the data calculation processing unit 215 includes an averaging process for calculating the average value of the plurality of work information D1s. In the present embodiment, since the plurality of sections K all include the three positioning points P1 that are the vertices of the triangle, the work data of each section K is the average value of the work information D1 corresponding to these three positioning points P1. Is derived by calculating.

Further, the arithmetic processing performed by the data calculation processing unit 215 on the work information D1 corresponding to the positioning point P1 included in each section K is not limited to the averaging processing, and may be, for example, a variation calculation processing. That is, the arithmetic processing in the data calculation processing unit 215 includes the variation calculation processing for calculating the variation degree for the plurality of work information D1s. In the present embodiment, since the plurality of sections K all include the three positioning points P1 that are the vertices of the triangles, the work data of each section K includes the degree of variation of the work information D1 corresponding to these three positioning points P1. Is derived by calculating. The degree of variation may be expressed by, for example, a standard deviation.

Further, the setting of the section K in the second mode is preferably used for the generation of the map M1 that requires a relatively detailed view of the distribution of the field F1 as a whole, such as the yield of crops. That is, when the mode of the section setting unit 214 is in the second mode, it is preferable that the work information D1 includes crop yield information for each of a plurality of positions. As a result, even when the map M1 is generated from the work information D1 in which a large number of positioning points P1 exist in the work area A1, a plurality of sections K are automatically set based on the positioning points P1 and it is relatively easy. Map M1 can be obtained.

Further, even when the section K is set in the second mode, the map M1 is finally generated, and the display processing unit 217 displays the map M1 on the display screen Im1. FIG. 17 shows an example of the map M1 using a plurality of sections K set in the second mode. Even in this case, as shown in FIG. 17, the display processing unit 217 displays each of the plurality of sections K in the map M1 in an mode (for example, gradation) according to the work data. It is preferable that such a map M1 is displayed on the display screen Im1 together with the explanatory information C4.

FIG. 18 is a flowchart showing an example of the operation of the information processing unit 21 related to the setting process of the section K in the second mode.

That is, the information processing unit 21 first determines in step S21 whether or not the display instruction of the map M1 has been acquired from the user. When the information processing unit 21 acquires the display instruction of the map M1 from the user (S21: Yes), the process proceeds to step S22. The information processing unit 21 waits until the display instruction of the map M1 is acquired from the user (S21: No).

In step S22, the information processing unit 21 extracts the position information D2 from the work information D1. As a result, the information processing unit 21 (position acquisition unit 211) acquires the position information D2.

Next, in step S23, the information processing unit 21 sets a plurality of positioning points P1 in the work area A1 by using the acquired position information D2. Next, in step S24, the information processing unit 21 refers to the vehicle speed information, the clutch information, etc. in the operation information, or uses the density of the positioning point P1 in the virtual space such as the vicinity of K or the point density as an index for work. The unrelated positioning point P1 is excluded as an unnecessary point.

Next, in step S25, the information processing unit 21 enters the work area A1 in the section setting unit 214 based on the positioning points P1 excluding unnecessary points from the plurality of positioning points P1 included in the work area A1. Set a plurality of compartments K. At this time, the section setting unit 214 sets a plurality of sections K by setting the individual areas obtained by creating the Delaunay diagram G1 in the section K.

Next, in step S26, the information processing unit 21 calculates work data for each section K based on the work information D1 in the data calculation processing unit 215. At this time, the data calculation processing unit 215 calculates the work data by, for example, calculating the average value of the work information D1 corresponding to the three positioning points P1 that are the vertices of each section K. The information processing unit 21 registers the calculated work data as map information.

Next, in step S27, the information processing unit 21 (map generation unit 216) creates a map M1 corresponding to a plurality of sections K in the field F1 based on the calculated work data. Specifically, the information processing unit 21 generates the map M1 of the work area A1 based on the work data of each section K registered in the map information. This makes it possible to create a map M1 showing the work data of the entire field F1. Next, in step S28, the information processing unit 21 causes the display processing unit 217 to display the display screen Im1 including the map M1 on the display unit (operation display unit 33) of the user terminal 3.

Next, in step S29, the information processing unit 21 determines whether or not the end instruction has been received from the user. When the user performs an operation to end the use of the work support site on the user terminal 3, the information processing unit 21 receives the end instruction (S29: Yes) and performs a series of processes related to the setting process of the section K in the second mode. To finish. When the information processing unit 21 does not accept the end instruction (S29: No), the process proceeds to step S21 and the above process is repeated.

As described above, the information processing unit 21 executes a series of processes related to the setting of the plurality of partitions K. However, the flowchart shown in FIG. 18 is merely an example, and the processes may be added or omitted as appropriate, or the order of the processes may be changed as appropriate.

As described above, in the present embodiment, in the second mode, the section setting unit 214 is in the work area A1 corresponding to the field F1 and in the work area A1 of the plurality of positioning points P1 corresponding to the plurality of position information D2. It has a function of setting a plurality of sections K that change according to the arrangement of. Therefore, in the work management system 1 according to the present embodiment, it is possible to solve the problems that may occur in the above-mentioned second related technique in the second mode. That is, since the plurality of compartments K are dynamically set according to the arrangement of the plurality of positioning points P1 in the work area A1, the compartments K are compared with the case where the compartments K are predetermined as in the second related technique. Therefore, it is easy to suppress the bias of the sampling position and the variation of the number of samplings in each section K.

In particular, the division setting unit 214 sets a plurality of divisions K by dividing the work area A1 by a connection line L1 connecting two adjacent positioning points P1 among the plurality of positioning points P1. The position of the positioning point P1 in the section K is unlikely to be biased. Further, since the section setting unit 214 sets a plurality of sections K using the Delaunay diagram G1, the number of positioning points P1 in each section K is unlikely to vary. Further, since each section K that determines the effective range of the work data is set with reference to the plurality of positioning points P1, the effective range of the work data is also accurate. As described above, according to the work management system 1 according to the present embodiment, the bias of the sampling position and the variation in the number of samplings in each section K are unlikely to occur, and the fairness of the work data among the plurality of sections K is ensured. It will be easier to do. As a result, a highly reliable map M1 can be realized.

Further, according to the method of setting the division K in the second mode, since the apex of the triangle is defined by the three positioning points P1 in each of the plurality of divisions K, each of the plurality of divisions K is defined by the positions of the three positioning points P1. It is possible to obtain the area of the section K. That is, the area of the section K can be derived from the positions of the three positioning points P1 that are the vertices of the section K. Therefore, for example, regarding the yield per unit area, the data calculation processing unit 215 sets the total value or the average value of the work information D1 (harvest amount) corresponding to the three positioning points P1 to the positions of the three positioning points P1. It is obtained by dividing by the area of the section K calculated from.

[5.3.3] Third mode (Voronoi diagram)
Next, the setting process of the section K will be described when the mode of the section setting unit 214 is in the third mode, that is, when a plurality of sections K are set by using the Voronoi diagram G2. Here, the third mode is particularly when the effective range of work data is relatively wide, that is, the number of positioning points P1 is relatively small, such as the diagnosis of soil characteristics (including soil hardness and hard disk depth). It is a suitable partition K setting method. Therefore, in the following, as an example of the work of manually collecting soil by a person, as shown in FIG. 19, when several (here, five) positioning points P1 are set in one work area A1. Will be explained on the premise of.

In the third mode, as shown in FIG. 19, the Voronoi diagram using the plurality of positioning points P1 included in the work area A1 with respect to the work area A1 set by the area setting unit 213. Each area obtained by creating FIG. G2 is defined as a section K. FIG. 19 shows an enlarged view of a part of Voronoi diagram G2 in the blowout. The "Voronoi diagram" referred to in the present disclosure is another on the same metric space with respect to a plurality of mother points (positioning points P1) arranged at arbitrary positions on the metric space (working area A1). It is a diagram divided into areas according to which mother point the point is close to. In particular, in the case of a two-dimensional Euclidean plane, the boundary line of the region (partition line L2) becomes a part of the bisector of each mother point. Specifically, the Voronoi diagram G2 is created with a plurality of positioning points P1 included in the work area A1 as a mother point, and a perpendicular bisector of a line segment L3 connecting two adjacent positioning points P1 is a Voronoi diagram. It is a boundary (division line L2). By connecting such perpendicular bisectors, a convex hull-shaped Voronoi region is created.

In short, in the third mode, the section setting unit 214 sets the work area A1 at the dividing line L2 that separates the work area A1 between any two positioning points P1 among the plurality of positioning points P1 corresponding to the plurality of position information D2. By dividing, a plurality of sections K are set in the work area A1. That is, the boundary line between two adjacent divisions K is the division line L2. In particular, in the present embodiment, since the section setting unit 214 uses the Voronoi diagram G2, the perpendicular bisector of the line segment L3 connecting the two positioning points P1 serves as the boundary line between the two adjacent sections K. A plurality of sections K are set by using it as the dividing line L2. As described above, in the third mode, the individual regions obtained by creating the Voronoi diagram G2 using the positioning points P1 are set as the division K, so that the plurality of positioning points P1 can be arranged in the working area A1. A plurality of compartments K that change accordingly are set.

Therefore, in this case, the division setting unit 214 sets a plurality of divisions K according to the arrangement of the positioning points P1 in the work area A1, so that the arrangement of the positioning points P1 in the work area A1 is changed. If so, the plurality of sections K to be set also change. That is, a plurality of sections K are dynamically set for the work area A1 so that the sections K are changed according to the arrangement of the positioning points P1 in the work area A1.

However, it is not essential that the Voronoi diagram G2 is exactly the same. For example, the angle between the line segment L3 connecting the two positioning points P1 and the dividing line L2 does not have to be exactly 90 degrees. As an example, the angle between the line segment L3 and the dividing line L2 may be appropriately changed in the range of 80 degrees or more and 100 degrees or less.

Further, in the example of FIG. 19, the number of mother points (the number of positioning points P1) is "5", the work area A1 is divided into five areas, and each of these five areas becomes a section K. That is, in the example of FIG. 19, five sections K are set for the five positioning points P1. As described above, in the Voronoi diagram G2, the number of population points and the number of Voronoi regions match, so that the division setting unit 214 assigns a plurality of divisions K so that the plurality of positioning points P1 are assigned to the plurality of divisions K on a one-to-one basis. It will be set. In short, each section K set in the third mode includes only one positioning point P1.

Further, when the section setting unit 214 sets a plurality of sections K in the third mode, the work data associated with each section K is derived from the work information corresponding to the positioning point P1 included in the section K. That is, the work data associated with one of the plurality of sections K is determined based on the work information D1 corresponding to the positioning point P1 included in the one section K. In particular, in the present embodiment, since one positioning point P1 is included in one section K, the work data is derived without performing arithmetic processing such as averaging processing on the work information D1. Therefore, the work data may be directly extracted from the work information D1 without using the data calculation processing unit 215. However, the data calculation processing unit 215 may calculate the work data by performing arithmetic processing such as multiplying the work information D1 corresponding to the positioning point P1 included in each section K by a coefficient.

Further, the setting of the section K in the third mode is preferably used for generating the map M1 having a relatively wide effective range of work data, such as soil characteristics (including soil hardness and hard disk depth). .. That is, when the mode of the section setting unit 214 is in the third mode, it is preferable that the work information D1 includes soil characteristics for each of a plurality of positions. As a result, even when the map M1 is generated from a limited number of sampling data (work information D1), a plurality of sections K are automatically set based on the positioning point P1 and the map M1 can be obtained relatively easily. Can be done. More specifically, regarding the soil quality, local changes such as those that change in each pinpoint of the field F1 are unlikely to occur, and the soil quality at a certain sampling position and the surroundings of the sampling position are not likely to occur. There is a strong tendency for the quality to be the same as the quality of the soil. Therefore, in the case of soil characteristics, even if the number of sampling positions in the entire field F1 is small, the data (work information D1) sampled at a certain sampling position (positioning point P1) is also effective as data around it. You can expect to be there. Therefore, the method of setting the section K in which each section K includes the positioning point P1 (only one) as in the third mode is particularly suitable for mapping the soil characteristics.

Further, even when the section K is set in the third mode, the map M1 is finally generated, and the display processing unit 217 displays the map M1 on the display screen Im1. FIG. 20 shows an example of the map M1 using a plurality of sections K set in the third mode. Even in this case, as shown in FIG. 20, the display processing unit 217 displays each of the plurality of sections K in the map M1 in an mode (for example, gradation) according to the work data. It is preferable that such a map M1 is displayed on the display screen Im1 together with the explanatory information C4.

FIG. 21 is a flowchart showing an example of the operation of the information processing unit 21 related to the setting process of the section K in the third mode. This flowchart is basically the same as the flowchart related to the setting process of the section K in the second mode (see FIG. 18), and steps S31 to S34 and S37 to S39 are steps S21 to S21 in FIG. 18, respectively. Corresponds to S24 and S27 to S29. That is, in the third mode, the operation of the information processing unit 21 according to steps S35 and S36 is different from that in the second mode.

In step S35, the information processing unit 21 has a plurality of information processing units 21 in the work area A1 based on the positioning points P1 excluding unnecessary points among the plurality of positioning points P1 included in the work area A1 in the section setting unit 214. Set the partition K. At this time, the section setting unit 214 sets a plurality of sections K by setting the individual areas obtained by creating the Voronoi diagram G2 in the section K.

Next, in step S36, the information processing unit 21 calculates work data for each section K based on the work information D1. At this time, the information processing unit 21 derives the work data by reading the work information D1 corresponding to one positioning point P1 which is the mother point of each section K, for example. The information processing unit 21 registers the derived work data as map information.

As described above, the information processing unit 21 executes a series of processes related to the setting of the plurality of partitions K. However, the flowchart shown in FIG. 21 is only an example, and the processes may be added or omitted as appropriate, or the order of the processes may be changed as appropriate.

As described above, in the present embodiment, in the third mode, the section setting unit 214 is in the work area A1 corresponding to the field F1 and in the work area A1 of the plurality of positioning points P1 corresponding to the plurality of position information D2. It has a function of setting a plurality of sections K that change according to the arrangement of. Therefore, in the work management system 1 according to the present embodiment, it is possible to solve the problems that may occur in the above-mentioned second related technique even in the third mode. That is, since the plurality of compartments K are dynamically set according to the arrangement of the plurality of positioning points P1 in the work area A1, the compartments K are compared with the case where the compartments K are predetermined as in the second related technique. Therefore, it is easy to suppress the bias of the sampling position and the variation of the number of samplings in each section K.

In particular, the division setting unit 214 divides the work area A1 by the division line L2 that separates the two positioning points P1 from the plurality of positioning points P1, so that the division K is divided into the work area A1. Since it is set, the position of the positioning point P1 in each section K is unlikely to be biased. Further, since the section setting unit 214 sets a plurality of sections K using the Voronoi diagram G2, the number of positioning points P1 in each section K is unlikely to vary. Further, by setting each section K that determines the effective range of the work data with the plurality of positioning points P1 as a reference (mother point), the effective range of the work data is also accurate. As described above, according to the work management system 1 according to the present embodiment, the bias of the sampling position and the variation in the number of samplings in each section K are unlikely to occur, and the fairness of the work data among the plurality of sections K is ensured. It will be easier to do. As a result, a highly reliable map M1 can be realized.

Further, in the present embodiment, as described above, in the second mode and the third mode, when the section K is set based on the plurality of positioning points P1 in the work area A1, the positioning points P1 after excluding unnecessary points are used. Although used, this configuration is not essential. That is, in the second mode, the process of excluding unnecessary points is performed in step S24 (see FIG. 18) and in the third mode in step S34 (see FIG. 21), but this process can be omitted as appropriate.

[6] Modification Examples The modifications of the first embodiment are listed below. The modifications described below can be applied in combination as appropriate.

The work management system 1 in the present disclosure includes a computer system. A computer system mainly consists of one or more processors and one or more memories as hardware. When the processor executes the program recorded in the memory of the computer system, the function as the work management system 1 in the present disclosure is realized. The program may be pre-recorded in the memory of the computer system, may be provided through a telecommunications line, and may be recorded on a non-temporary recording medium such as a memory card, optical disk, hard disk drive, etc. that can be read by the computer system. May be provided.

Further, some or all the functional units included in the management server 2, the user terminal 3 or the mounted terminal 49 may be composed of electronic circuits.

Further, it is not an essential configuration for the work management system 1 that at least a part of the functions of the work management system 1 are integrated in one housing, and the components of the work management system 1 are in a plurality of housings. It may be provided in a distributed manner. For example, some functions of the information processing unit 21 may be provided in a housing different from the management server 2. Further, at least a part of the functions of the work management system 1 may be realized by a cloud (cloud computing) or the like.

On the contrary, in the first embodiment, the functions of the work management system 1 distributed in a plurality of devices may be integrated in one housing. For example, at least a part of the functions distributed to the management server 2 and the combine 4 (mounted terminal 49) may be integrated in the management server 2 or the work machine (combin 4). May be.

Further, in the first embodiment, the work using the work machine is exemplified as the main management target of the work management system 1, but the work is not limited to this, and the work manually performed by a person is the main management of the work management system 1. It may be a target.

Further, the predetermined condition used for determining whether or not the temporary section B is the exclusion section Be may be defined with respect to the number of positioning points P1 included in the temporary section B, as in the first embodiment. The number of positioning points P1 to be included is not limited to "0". As another example of the predetermined condition, the number of included positioning points P1 is "α" or less (α is an integer of 1 or more), and the number of included positioning points P1 is "β" of the area of the temporary compartment B. It may be 1 or less (β is a positive number).

Further, it is not essential for the work management system 1 that the area setting unit 213 has a plurality of operation modes including the first operation mode and the second operation mode. For example, the area setting unit 213 may have only one of a first operation mode in which the work area A1 is automatically set and a second operation mode in which the work area A1 is manually set. Further, even when the work area A1 is automatically set, the area setting unit 213 automatically sets the work area A1 without using the candidate area A10 and the temporary section B as described as the first related technique. May be good.

Further, it is not essential for the work management system 1 that the partition setting unit 214 has a plurality of modes including the first mode, the second mode, and the third mode. For example, the section setting unit 214 dynamically sets a plurality of sections K according to the first mode in which a plurality of sections K are fixedly set for the work area A1 and the arrangement of the positioning points P1 in the work area A1. It may have only one of the modes (second mode and third mode) set to. Further, even when a plurality of sections K are dynamically set according to the arrangement of the positioning points P1, the section setting unit 214 has, for example, a second mode in which the section K is set using the Delaunay diagram G1 and a Voronoi diagram G2. May have only one of the third modes set in the compartment K using.

Further, the position detection unit 494 is not limited to a satellite positioning system such as GNSS, and may be used together with or instead of a satellite positioning system, for example, by using a receiver that receives a beacon signal transmitted by radio waves from a plurality of transmitters. good. In this case, the plurality of transmitters are arranged at a plurality of locations around the field F1 where the work machine moves, and the position detection unit 494 determines the positions of the plurality of transmitters and the reception radio wave strength of the beacon signal at the receiver. Based on this, the position information of the work machine is detected.

Further, the position detection unit 494 may include, for example, a sensor such as a speed sensor, an acceleration sensor, or a gyro sensor, and the behavior of the working machine may be detected by these sensors. Further, the position detection unit 494 includes, for example, an image sensor (camera), a sonar sensor, a radar, and a sensor such as LiDAR (Light Detection and Ranging), and even if these sensors detect the surrounding condition of the work machine. good. Then, the position detection unit 494 may detect the position information of the work machine by using the behavior of the work machine and / or the surrounding situation.

Further, the operation display unit 33 of the user terminal 3 may have a function as a user interface, and the mode of information output and the mode of information input (operation) are not limited to the above-mentioned modes. As an example, the operation display unit 33 may adopt an aspect such as projection by a projector, audio output, or printing as an aspect of information output. In this case, the display screen Im1 may be projected by a projector, for example, or may be displayed on a sheet by printing. Further, the operation display unit 33 may adopt a mode of inputting information such as voice input, gesture input, or input of an operation signal from another terminal. Further, for the operation unit other than the user terminal 3, a mode such as voice input, gesture input, or input of an operation signal from another terminal may be adopted. That is, the operation receiving unit 23 can receive the user's operation not only by the operation of the touch panel or the like but also by the operation by voice input (voice operation) or the like.

Further, the work area A1 is not limited to the latitude and longitude coordinate system (geographic coordinate system), and may be represented by, for example, a coordinate system relative to the reference point with respect to the reference point (origin) in the virtual space. That is, for example, the work area A1 may be defined by a position relative to the reference point with a specific position such as a work start position or an engine start position of the work machine (combine 4) as a reference point. In this case, the plurality of compartments K set in the work area A1 are similarly represented by the coordinate system relative to the reference point.

Further, when the work area A1 is automatically set, the area setting unit 213 may set the work area A1 (candidate area A10) by a process other than the convex hull process.

Further, the function of the area setting unit 213 to set the work area A1 by using the candidate area A10 and the temporary section B is not an essential configuration for the work management system 1, and can be omitted as appropriate. Further, the function itself for automatically setting the work area A1 is not an essential configuration for the work management system 1, and can be omitted as appropriate.

(Embodiment 2)
As shown in FIG. 22, the work management system 1A according to the present embodiment is different from the work management system 1 according to the first embodiment in that it includes a separate server 5 linked with the management server 2 in addition to the management server 2. do. Hereinafter, the same configurations as those in the first embodiment will be designated by a common reference numeral and description thereof will be omitted as appropriate.

The "separate server" referred to in the present disclosure is a server different from the management server 2, and for example, the operation subject (management subject) of the separate server 5 is different from the management server 2. The separate server 5 is connected to the communication network N1 and can communicate with the management server 2 via the communication network N1. In the present embodiment, the function of automatically setting the work area A1 in the area setting unit 213 is implemented in another server 5 instead of the management server 2.

In this embodiment, as an example, another server 5 has an API (Application Programming Interface). The separate server 5 provides the management server 2 with the function of automatically setting the work area A1 by calling the API from the management server 2 via the communication network N1. In this way, the management server 2 cooperates with another server 5 to embody the function as the work management system 1A.

That is, another server 5 according to the present embodiment has a position acquisition unit 51 that acquires the position information D2 of the work machine (combine 4), an area setting unit 52 that automatically sets the work area A1, and information from the management server 2. The interface unit 53 for receiving the input of the above is provided. When specific information is input to the interface unit 53, the separate server 5 automatically sets the work area A1 in the area setting unit 52 based on the position information D2 acquired by the position acquisition unit 51. The area setting unit 52 has a first processing unit 501, a second processing unit 502, and a third processing unit 503, similarly to the area setting unit 213 described in the first embodiment. Therefore, the area setting unit 52 can set the work area A1 by using the candidate area A10 and the temporary section B.

The separate server 5 outputs the set work area A1 from the interface unit 53 to the management server 2. Here, the interface unit 53 is defined in advance so that when the specific input information is received, the work area A1 is automatically set and output from the interface unit 53. The interface unit 53 is realized by, for example, API.

As a modification of the second embodiment, it is not an essential configuration that a plurality of functions in the separate server 5 are integrated in one housing, and the components of the separate server 5 are distributed in the plurality of housings. It may be provided. Further, at least a part of the functions of the separate server 5 may be realized by a cloud (cloud computing) or the like.

1,1A Work management system 2 Management server 3 User terminal 211,51 Position acquisition unit 212 Work acquisition unit 214 Partition setting unit 215 Data calculation processing unit 216 Map generation unit 217 Display processing unit A1 Work area D1 Work information D2 Location information F1 Field G1 Delaunay diagram K section L1 connection line M1 map P1 positioning point

Claims (11)

With respect to the work performed at a plurality of positions in the field, a position acquisition unit for acquiring a plurality of position information related to the plurality of positions, and a position acquisition unit.
The work area corresponding to the field is provided with a section setting unit for setting a plurality of sections that change according to the arrangement of the plurality of positioning points corresponding to the plurality of position information in the work area.
Work management system. The section setting unit sets the plurality of sections by dividing the work area by a connecting line connecting two adjacent positioning points among the plurality of positioning points.
The work management system according to claim 1. The division setting unit creates a Delaunay diagram using the plurality of positioning points in the work area, and sets the plurality of divisions by using the Delaunay side of the Delaunay diagram as the connection line.
The work management system according to claim 2. A work acquisition unit that acquires a plurality of work information related to the work for each of the plurality of positions, and a work acquisition unit.
A map generation unit that generates a map in which work data based on the plurality of work information is associated with the plurality of sections for each work area is further provided.
The work management system according to any one of claims 1 to 3. Data calculation to calculate the work data associated with the one section by executing arithmetic processing on the work information corresponding to the positioning point included in one of the plurality of sections. Further equipped with a processing unit,
The work management system according to claim 4. The arithmetic processing includes an averaging process for calculating an average value of a plurality of the work information.
The work management system according to claim 5. The arithmetic processing includes a variation calculation process for calculating a variation degree for a plurality of the work information.
The work management system according to claim 5 or 6. A display processing unit for displaying the map on the display screen is further provided.
The display processing unit displays each of the plurality of sections in the map in an manner corresponding to the work data.
The work management system according to any one of claims 4 to 7. The work information includes crop yield information for each of the plurality of positions.
The work management system according to any one of claims 4 to 8. Acquiring a plurality of position information related to the plurality of positions regarding the work performed at a plurality of positions in the field, and
The work area corresponding to the field is provided with a plurality of sections that change according to the arrangement of the plurality of positioning points corresponding to the plurality of position information in the work area.
Work management method. Acquiring a plurality of position information related to the plurality of positions regarding the work performed at a plurality of positions in the field, and
In the work area corresponding to the field, a plurality of sections that change according to the arrangement of the plurality of positioning points corresponding to the plurality of position information in the work area are set.
A work management program for having one or more processors execute.

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