Maintenance proposal method, maintenance proposal system, and maintenance proposal program

Abstract

To propose maintenance of a work device at appropriate timing by utilizing information such as operation information.SOLUTION: A maintenance proposal method includes the steps of: acquiring operation information showing a result of measurement of an operation parameter as an operation state when a work device (2) works in a farm field (9) (S01); extracting a severe farm field in which severe work satisfying a predetermined severe condition has been performed, on the basis of the operation information and a representative value of past operation information acquired in combination, for each combination of a type of the work device, the farm field, a type of work, and the type of a crop which is an object for which the work device has worked in the farm field (S03); and outputting a maintenance proposal signal which proposes maintenance of the work device, when a severe work time showing the sum of time during which the work has been performed in the severe farm field, and the total work time as the sum of the time during which the work has been performed in any farm fields satisfy a predetermined proposal condition, for each work device (S05).SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a maintenance proposal method, a maintenance proposal system, and a maintenance proposal program, which can be suitably used, for example, to propose maintenance of a work implement used in agricultural fields at an appropriate time. [Background technology]

[0002] Patent Document 1 (JP Patent Publication No. 2022-168500) discloses a work management method. In this work management method, work efficiency, which represents the amount of work done per unit time, is calculated based on the operation information of a work device that has performed work such as sugarcane harvesting in a field. In addition, in this work management method, the time when work performed in multiple fields will be completed is estimated based on the work efficiency of each work device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-168500 Summary of the Invention [Problem to be solved by the invention]

[0004] Maintenance of operating equipment needs to be performed at appropriate times. For example, if the work performed by the operating equipment is severe, it is preferable to perform the maintenance earlier. However, the work management method of Patent Document 1 does not utilize information such as operation information and work efficiency while collecting the information to perform maintenance of the operating equipment at appropriate times.

[0005] In view of the above circumstances, an object of the present disclosure is to provide a maintenance proposal method, a maintenance proposal system, and a maintenance proposal program for proposing maintenance of a work device at an appropriate time by utilizing information such as operation information. Other objects and novel features will become apparent from the description of this specification and the accompanying drawings. [Means for solving the problem]

[0006] The means for solving the problems will be described below using the numbers and symbols used in the description of the embodiment of the invention. These numbers and symbols are added in parentheses for reference purposes to show an example of the correspondence between the description of the claims and the description of the embodiment of the invention. Therefore, the description in parentheses should not be interpreted as limiting the scope of the claims.

[0007] According to one embodiment, the maintenance suggestion method includes acquiring (S01) operation information representing a result of measuring an operation parameter as an operation status when the working device (2) performs work in the field (9). The maintenance suggestion method further includes extracting (S03) a harsh field in which harsh work that satisfies a predetermined harsh condition has been performed, for each combination of a type of the working device (2), a field (9), a type of work, and a type of crop for which the working device (2) performed work in the field (9), based on the operation information and a representative value of the past operation information acquired for the combination. The maintenance suggestion method further includes outputting (S05) a maintenance suggestion signal that suggests maintenance of the working device (2) when a harsh work time representing a total time for which work was performed in the harsh field and a total work time as a total time for which work was performed in any of the fields (9) satisfy a predetermined suggestion condition, for each working device (2).

[0008] According to one embodiment, the maintenance proposal system (1) includes an acquisition unit (521), an extraction unit (522), and a proposal unit (524). The acquisition unit (521) acquires operation information representing the results of measuring operation parameters as the operation status when the working device (2) performs work in the field (9). The extraction unit (522) extracts, for each combination of the type of the working device (2), the field (9), the type of work, and the type of crop for which the working device (2) performed work in the field (9), based on the operation information and a representative value of the past operation information acquired for the combination, a harsh field in which harsh work that satisfies a predetermined harsh condition has been performed. The proposal unit (524) outputs a maintenance proposal signal that proposes maintenance of the working device (2) when, for each working device (2), a harsh work time representing the total time for which work was performed in the harsh field and a total work time as the total time for which work was performed in any of the fields (9) satisfy a predetermined proposal condition.

[0009] According to one embodiment, the maintenance suggestion program is executed by the calculation device (52) to realize a predetermined process. The process includes acquiring (S01) operation information representing the results of measuring operation parameters as the operation status when the working device (2) performs work in the field (9). The process further includes extracting (S03) a harsh field in which harsh work that satisfies a predetermined harsh condition has been performed, for each combination of the type of working device (2), the field (9), the type of work, and the type of crop on which the working device (2) performed work in the field (9), based on the operation information and a representative value of the past operation information acquired for the combination. The process further includes outputting (S05) a maintenance suggestion signal that suggests maintenance of the working device (2) when a harsh work time representing the total time the work was performed in the harsh field and a total work time as the total time the work was performed in any of the fields (2) satisfy a predetermined suggestion condition, for each working device (2). Effect of the Invention

[0010] According to one embodiment, it is possible to utilize information such as operation information to suggest maintenance of a work device at an appropriate time. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram illustrating an example of a configuration of a maintenance proposal system according to an embodiment. [Diagram 2] FIG. 2 is a block circuit diagram showing an example of a configuration of a maintenance suggestion device according to an embodiment. [Diagram 3] FIG. 3 is a flowchart illustrating an example of a process of a maintenance suggestion method according to an embodiment. [Figure 4] FIG. 4 is a table showing an example of accumulated information regarding work efficiency and average vehicle speed in one embodiment. [Diagram 5] FIG. 5 is a table showing an example of accumulated information regarding work efficiency and average vehicle speed in one embodiment. [Figure 6] FIG. 6 is a table showing an example of accumulated information regarding work efficiency and average vehicle speed in one embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the accompanying drawings, embodiments for implementing a maintenance proposal method, a maintenance proposal system, and a maintenance proposal program according to the present disclosure will be described below.

[0013] (Embodiment) 1, a maintenance proposal system 1 according to one embodiment includes a maintenance proposal device 5. The maintenance proposal system 1 may further include some or all of an on-board terminal 21, a database 3, and an external terminal 6. The maintenance proposal device 5, the on-board terminal 21, the database 3, and the external terminal 6 may be connected to a network 4 via wired communication and / or wireless communication.

[0014] The on-board terminal 21 is mounted on the working device 2. The working device 2 moves on the ground and performs agricultural work such as harvesting on crops grown in a farm field 9. As an example, the working device 2 may be a work vehicle such as a combine harvester that performs harvesting work, or a tractor that pulls a working machine that performs harvesting.

[0015] The on-board terminal 21 generates operation information representing the results of measuring various operation parameters as the operation status when the working device 2 works in the field 9. The operation information further includes position information measuring positions passed by the working device 2 at multiple times while working in the field 9. The position may be measured using a GNSS (Global Navigation Satellite System) or a quantum compass that does not require an external auxiliary system such as an artificial satellite. The position information includes positioning time information representing the positioning time when each position was measured. The on-board terminal 21 transmits the operation information to the maintenance proposal device 5.

[0016] The database 3 stores various data and provides the data in response to a request from the maintenance proposal device 5. The data stored in the database 3 may include field information indicating the position, shape, area, etc. of the field 9, work device information indicating the type of work device 2, crop information indicating the type of crop grown in the field 9, work information indicating the type of work performed by the work device 2 in the field 9, and the like. The database 3 may communicate with the maintenance proposal device 5 via a network 4 as shown in FIG. 1, but is not limited to this example. As an example, the database 3 may be integrated with the maintenance proposal device 5.

[0017] When a predetermined condition is satisfied for the operating device 2, the maintenance proposal device 5 outputs a maintenance proposal signal that proposes maintenance of the operating device 2, based on the operation information received from the on-board terminal 21 and various data received from the database 3. As an example, the maintenance proposal signal may be transmitted to the external terminal 6 via the network 4.

[0018] The external terminal 6 may include a smartphone, a tablet terminal, a personal computer, or the like having a communication function, a display function, and an input function. The external terminal 6 notifies the user by displaying the contents of the maintenance proposal signal received from the maintenance proposal device 5. In addition, the user may control some or all of the operations of the maintenance proposal device 5 and the on-board terminal 21, or edit various data stored in the database 3, by operating the external terminal 6.

[0019] As shown in Fig. 2, the maintenance proposal device 5 according to one embodiment may be configured as a so-called computer. In the example of Fig. 2, the maintenance proposal device 5 includes a bus 51, a calculation device 52, a storage device 53, a communication device 54, and an input / output device 55. The bus 51 may be configured to realize communication between the calculation device 52, the storage device 53, the communication device 54, and the input / output device 55.

[0020] The calculation device 52 executes the maintenance proposal program according to one embodiment to realize the functions of the acquisition unit 521, the extraction unit 522, the determination unit 523, and the proposal unit 524. The acquisition unit 521, the extraction unit 522, the determination unit 523, and the proposal unit 524 are virtual function blocks that execute processes realized by the calculation device 52 and the storage device 53 working together. The acquisition unit 521 acquires operation information representing operation parameters when the work device 2 works in the field 9. The extraction unit 522 extracts from the field 9 harsh fields in which harsh work that satisfies predetermined harsh conditions has been performed among the works performed by the work device 2 in the field 9. The determination unit 523 determines whether or not the harsh work time representing the total time work was performed in the harsh field and the total work time as the total time work was performed in any of the fields 9, for each work device 2, satisfy the predetermined proposal conditions. The suggestion unit 524 outputs a maintenance suggestion signal that suggests maintenance of the working device 2 when the severe work time and the total work time satisfy the suggestion condition.

[0021] The storage device 53 includes a program storage unit 531 and a data storage unit 532. The maintenance suggestion program may be read from an external recording medium 530 and stored in the program storage unit 531. The recording medium 530 may be a non-transitory and tangible medium. The data storage unit 532 may store operation information acquired from the on-board terminal 21.

[0022] The communication device 54 communicates with external devices including the on-board terminal 21, the database 3, and the external terminal 6 by wireless communication and / or wired communication via the network 4. The maintenance suggestion program may be received by the communication device 54 from the outside and stored in the program storage unit 531.

[0023] The input / output device 55 outputs information to a user and accepts operations input by the user. As an example, the input / output device 55 includes a display device that outputs images, and a keyboard and / or a mouse that accepts inputs.

[0024] As an example, the external terminal 6 may also be configured as a computer including a calculation device, a storage device, a communication device, and an input / output device. The input / output device may include a touch panel that integrates a display device that outputs images and a touch pad that accepts input by touch operations.

[0025] An example of the processing of the maintenance proposal method according to one embodiment will be described with reference to the flowchart in Fig. 3. The processing of the maintenance proposal method may be started when the maintenance proposal device 5 is started. At this time, the arithmetic device 52 of the maintenance proposal device 5 executes a maintenance proposal program, thereby realizing the processing of the maintenance proposal method.

[0026] When the flowchart of FIG. 3 is started, step S01 is executed. In step S01, the acquisition unit 521 of FIG. 2 receives and acquires the operation information transmitted from the mounted terminal 21 of FIG. 1. The acquired operation information may be stored in the data storage unit 532 of FIG. 2. The acquisition unit 521 may also request the database 3 to receive and acquire the operation device information indicating the type of the operation device 2, the field information indicating the field 9, the operation information indicating the type of the operation, and the crop information indicating the type of the crop. Furthermore, the acquisition unit 521 may calculate and acquire another operation information based on the received operation information. As an example, the acquisition unit 521 may calculate the operation efficiency as another operation information based on the position information as the operation information received from the mounted terminal 21 and the field information received from the database 3. Here, the operation efficiency may represent the unit area operation time as the time required for the operation device 2 to perform the operation per unit area of ​​the field 9. In this case, the acquisition unit 521 may acquire unit area operation time information indicating the unit area operation time. As another example, the acquisition unit 521 may calculate the average speed at which the work device 2 moves in the field 9 while performing work as the average vehicle speed of the work device 2 based on the location information as operation information received from the mounted terminal 21 and the positioning time information included in the location information, and acquire vehicle speed information representing the average vehicle speed.

[0027] After step S01 in FIG. 3, step S02 is executed. In step S02, the acquisition unit 521 in FIG. 2 calculates a representative value of the past operation information. More specifically, a representative value of the work efficiency or average vehicle speed included in the operation information previously acquired for the same combination of the type of the working device 2, the field 9, the type of work, and the type of crop on which the working device 2 performed the work in the field 9 in the operation information acquired in step S01 is calculated. The representative value may be calculated based on a statistical value of the past operation information. The statistical value may include at least one of the average value, the median, and the standard deviation. The past operation information may be stored in the data storage unit 532 in FIG. 2 in step S01 in FIG. 3 that was previously executed.

[0028] After step S02 in FIG. 3, step S03 is executed. In step S03, the extraction unit 522 in FIG. 2 extracts a harsh field from the field 9. More specifically, for each combination of the type of working device 2, the field 9, the type of work, and the type of crop on which the working device 2 worked in the field 9, the extraction unit 522 extracts the field 9 in which harsh work that satisfies a predetermined harsh condition has been performed as a harsh field based on the operation information and the representative value of the past operation information acquired for that combination. As an example, the harsh condition may be satisfied when the ratio between the operation parameter represented by the operation information and the representative value of the past operation information exceeds a predetermined range. Here, it should be noted that as long as the types of the working devices 2 match in the combinations to be compared, the individual working devices 2 do not necessarily need to match. This is because working devices 2 of the same type, i.e., the same model, have roughly the same performance, and therefore it is presumed that the operation information is comparable. As an example, whether the model of the working device 2 is the same may be determined based on the model number of the working device 2, or the model may be determined to be the same when values ​​such as the physical size and engine output of the working device 2 are sufficiently close.

[0029] After step S03 in Fig. 3, step S04 is executed. In step S04, the determination unit 523 in Fig. 2 determines whether or not the harsh work time, which is the total time that the working device 2 performed work in the harsh field, satisfies a predetermined proposal condition. In more detail, the determination unit 523 first calculates the harsh work time of the working device 2 based on the positioning time information included in the position information and the extraction result of the harsh field. Next, the determination unit 523 determines whether or not the calculated harsh work time satisfies a predetermined proposal condition. As an example, the proposal condition may be satisfied when the ratio of the harsh work time to the total work time exceeds a predetermined threshold.

[0030] 3, if the harsh work time satisfies the proposal condition (Yes), the process proceeds to step S05. On the other hand, if the harsh work time does not satisfy the proposal condition (No), the process of the flowchart in FIG. 3 ends without proposing maintenance to the operating device 2.

[0031] In step S05 in Fig. 3, the suggestion unit 524 in Fig. 2 outputs a maintenance proposal signal proposing maintenance of the working device 2. In more detail, the suggestion unit 524 first generates a maintenance proposal signal for proposing maintenance of the working device 2 to the user. Next, the suggestion unit 524 controls the communication device 54 to transmit the maintenance proposal signal to the outside. As an example, the suggestion unit 524 may transmit the maintenance proposal signal to the external terminal 6. At this time, the external terminal 6 may receive the maintenance proposal signal and notify the user of the content of the maintenance proposal signal by displaying it or the like.

[0032] When step S05 in FIG. 3 is completed, the process in the flowchart in FIG. 3 is completed.

[0033] A specific example of the process of the maintenance suggestion method according to one embodiment will be described with reference to Figures 4, 5, and 6. In this example, the work device 2 performs work in a first field 9, a second field 9, and a third field 9 in this season, and past operation information is accumulated in each of the first field 9, the second field 9, and the third field 9. Here, as described above, the past operation information accumulated for the first field 9, the second field 9, and the third field 9 includes combinations of the type of work device 2, the field 9, the type of work, and the type of crop that match the combinations of work performed by the work device 2 in this season.

[0034] FIG. 4 is a table showing an example of this season's and past operation information for the first field 9. In the example of FIG. 4, work for this season is performed in September 2022, and in the past, the same type of work was performed on the same type of crop in the same field 9 by the same type of work device 2 in September 2020 and September 2021. As an example, this work is rice harvesting work. As can be seen from FIG. 4, the work efficiency for this season is 46.08 minutes per 10 ares, and the work efficiency in the past was 17.98 minutes per 10 ares and 17.95 minutes per 10 ares, and the work efficiency for this season has deteriorated significantly compared to the work efficiency in the past. Here, if the standard operating parameter for determining harsh conditions is the work time per unit area as work efficiency, the representative value of work efficiency is the average value, and the range of harsh conditions is up to the average value + 20%, then in the first field 9, the representative value of work efficiency is 17.965 minutes per 10 ares, the range of harsh conditions is 21.558 minutes per 10 ares, and the work efficiency for this season exceeds the range of harsh conditions, so in step S03 of Figure 3, the first field 9 is extracted as a harsh field.

[0035] As can be seen from Fig. 4, the average vehicle speed this season is 0.29 meters per second, while the past average vehicle speeds were 0.60 meters per second and 0.57 meters per second, and the average vehicle speed this season has dropped significantly compared to past work efficiency. If the standard operating parameter for determining harsh conditions is the average vehicle speed, the representative value of the average vehicle speed is the average value, and the range of harsh conditions is up to -20% of the average value, then the representative value of the average vehicle speed in the first field 9 is 0.585 meters per second, the range of harsh conditions is 0.468 meters per second or less, and the average vehicle speed this season exceeds the range of harsh conditions, so in step S03 in Fig. 3, the first field 9 is also extracted as a harsh field.

[0036] FIG. 5 is a table showing an example of this season's and past operation information related to the second field 9. In the example of FIG. 5, as in the example of FIG. 4, the work of this season is performed in September 2022, and the same type of work was performed on the same type of crop in the same field 9 by the same type of work device 2 in the past in September 2020 and September 2021. As an example, this work is rice harvesting work. As can be seen from FIG. 5, the work efficiency of this season is 21.93 minutes per 10 ares, and the past work efficiencies are 18.92 minutes per 10 ares and 18.85 minutes per 10 ares, and the work efficiency of this season is almost the same as the past work efficiencies. Here, if the standard operating parameter for determining harsh conditions is the work time per unit area as work efficiency, the representative value of work efficiency is the average value, and the range of harsh conditions is up to the average value + 20%, then in the second field 9, the representative value of work efficiency is 18.885 minutes per 10 ares, the range of harsh conditions is 22.662 minutes per 10 ares or more, and the work efficiency for this season does not exceed the range of harsh conditions, so in step S03 of Figure 3, the second field 9 is not extracted as a harsh field.

[0037] Also, as can be seen from Fig. 5, the average vehicle speed this season is 0.48 meters per second, the past average vehicle speeds were 0.54 meters per second and 0.56 meters per second, and the average vehicle speed this season is almost unchanged compared to the past work efficiency. Here, if the standard operating parameter for determining the harsh conditions is the average vehicle speed, the representative value of the average vehicle speed is the average value, and the range of harsh conditions is up to -20% of the average value, then in the second field 9, the representative value of the average vehicle speed is 0.55 meters per second, the range of harsh conditions is 0.44 meters per second or less, and the average vehicle speed this season does not exceed the range of harsh conditions, so in step S03 of Fig. 3, the second field 9 is also not extracted as a harsh field.

[0038] FIG. 6 is a table showing an example of this season's and past operation information for the third field 9. In the example of FIG. 6, as in the examples of FIG. 4 and FIG. 5, the work of this season is carried out in September 2022, and the same type of work was carried out in the same field 9 for the same type of crop by the same type of work device 2 in September 2020 and September 2021 in the past. As an example, this work is rice harvesting work. As can be seen from FIG. 6, the work efficiency of this season is 40.53 minutes per 10 ares, and the work efficiency in the past was 17.15 minutes per 10 ares and 23.50 minutes per 10 ares, and the work efficiency of this season has deteriorated significantly compared to the work efficiency in the past. Here, if the standard operating parameter for determining harsh conditions is the work time per unit area as work efficiency, the representative value of work efficiency is the average value, and the range of harsh conditions is up to the average value + 20%, then in the first field 9, the representative value of work efficiency is 20.325 minutes per 10 ares, the range of harsh conditions is 24.39 minutes per 10 ares, and the work efficiency for this season exceeds the range of harsh conditions, so in step S03 of Figure 3, the third field 9 is extracted as a harsh field.

[0039] Also, as can be seen from Fig. 6, the average vehicle speed this season is 0.34 meters per second, while the average vehicle speeds in the past were 0.55 meters per second and 0.43 meters per second, and the average vehicle speed this season has dropped significantly compared to past work efficiency. If the standard operating parameter for determining harsh conditions is the average vehicle speed, the representative value of the average vehicle speed is the average value, and the range of harsh conditions is up to -20% of the average value, then the representative value of the average vehicle speed in the third field 9 is 0.49 meters per second, the range of harsh conditions is 0.392 meters per second or less, and the average vehicle speed this season exceeds the range of harsh conditions, so in step S03 of Fig. 3, the third field 9 is also extracted as a harsh field.

[0040] In the examples of Figures 4, 5 and 6, the heavy work time of the working device 2 in this season is equal to the sum of the time spent working in the first field 9 and the third field 9 extracted as heavy fields. In addition, the total work time of the working device 2 in this season is equal to the sum of the time spent working in the first field 9, the second field 9 and the third field 9. As an example, if the area of ​​the first field 9 is 20 ares, the area of ​​the second field 9 is 40 ares and the area of ​​the third field 9 is 30 ares, based on the area of ​​each field 9 and the work efficiency of each field in this season, the work time in the first field 9 is 92.16 minutes, the work time in the second field 9 is 91.72 minutes and the work time in the third field 9 is 121.59 minutes. In this case, the harsh work time is 213.75 minutes, the total work time is 305.47 minutes, and the ratio of the harsh work time to the total work time is approximately 0.70. When the threshold value of the proposal condition is 0.6, the ratio of the harsh work time to the total work time is greater than the threshold value, so in step S04 in Figure 3, a maintenance proposal signal proposing maintenance of the work device 2 is output.

[0041] As described above, the maintenance proposal method, maintenance proposal system 1, and maintenance proposal program according to this embodiment can utilize information such as automatically acquired operation information to propose maintenance of the working device 2 at an appropriate time.

[0042] (Variation 1) In the above-described embodiment, a configuration has been described in which the type of crop to be the subject of the work is stored in advance in the database 3 of Fig. 1. As a variation of this configuration, the type of crop may be estimated by the acquisition unit 521 of Fig. 2 in step S01 of Fig. 3 based on work information indicating a work calendar, crop type, etc., field information indicating the position of the field 9, and the time when the work was performed. Here, the work calendar or crop type is information indicating the schedule of work planned for each period in each field 9, and may be stored in the database 3 of Fig. 1 or the data storage unit 532 of Fig. 2.

[0043] (Variation 2) In the above-described embodiment, a configuration has been described in which operation information received from the on-board terminal 21 in Fig. 1 is stored in the data storage unit 532 in Fig. 2 and is then read out as past operation information. As a variation of this configuration, the past operation information may be stored in the database 3.

[0044] (Variation 3) In the above-described embodiment, a configuration has been described for outputting a maintenance proposal signal proposing overall maintenance of the operating device 2 in step S05 of Fig. 3. As a variation of this configuration, the operation parameters may include status parameters representing the status of each part of the operating device 2, the database 3 may store correspondence information representing the correspondence between the type of work and the parts that are particularly prone to wear for each type of work, and the maintenance proposal device 5 may output a maintenance proposal signal proposing maintenance based on the status parameters for each part acquired from the on-board terminal 21 and the correspondence information acquired from the database 3.

[0045] As an example, if the number of times the vehicle height control device was operated, among the operating parameters measured by the working implement 2, has increased sufficiently compared to past representative values, a proposal may be made to perform maintenance on the vehicle height raising and lowering cylinder seal of the working implement 2. This is because the environment of the field 9 is harsh, and the height of the working implement 2 is raised and lowered more frequently, particularly when the field 9 is muddy.

[0046] As another example, if the number of cloggings in the reaping unit, among the operating parameters measured by the working device 2, has increased sufficiently compared to past representative values, maintenance of the conveyor chain of the reaping unit of the working device 2 may be suggested. This is because clogging occurs more frequently in the reaping unit of the working device 2 when the environment of the field 9 is harsh, particularly when the crops to be reaped are fallen.

[0047] As yet another example, when the rice harvest yield, among the operating parameters measured by the working device 2, has increased sufficiently compared to the past representative value, maintenance of the rice transport conveyor of the threshing section of the working device 2 may be suggested. This is because the environment of the field 9 is harsh, and the transport amount on the conveyor of the working device 2 increases especially when the harvest yield is large.

[0048] (Additional Note) The maintenance proposal method, the maintenance proposal system 1, and the maintenance proposal program described in each embodiment can be stated as follows.

[0049] The maintenance suggestion method according to the first aspect includes: acquiring operation information representing results of measuring operation parameters as an operation status when the implement performs work in a farm field; extracting, for each combination of the type of working device, the field, the type of work, and the type of crop for which the working device performed the work in the field, a harsh field in which harsh work that satisfies a predetermined harsh condition was performed, based on the operation information and a representative value of past operation information acquired for the combination; outputting a maintenance proposal signal for proposing maintenance of the working device when a harsh work time representing a total time for which the work was performed in a harsh field where the harsh work satisfying the harsh conditions was performed and a total work time as a total time for which the work was performed in any of the fields satisfy a predetermined proposal condition; Includes.

[0050] A maintenance suggestion method according to a second aspect is the maintenance suggestion method according to the first aspect, The operation information is position information obtained by measuring positions passed by the working device at multiple times while the working device is performing the work in the field; unit area work time information indicating the time required per unit area of ​​the field when the work implement performs the work, or vehicle speed information indicating the average speed when the work implement moves in the field while performing the work; Including, The representative value is The average, median or standard deviation of the past operating information Including, the harsh condition is met when a ratio between the operating parameter and the representative value exceeds a predetermined range; The suggestion condition is met when the ratio of the severe work hours to the total work hours exceeds a predetermined threshold.

[0051] A maintenance suggestion method according to a third aspect is the maintenance suggestion method according to the second aspect, The operating parameters are: A state parameter representing a state of each part of the working device; Correspondence information indicating a correspondence relationship between the type of work and the part that is consumed for each type of work; Further comprising: The maintenance suggestion signal is a part maintenance suggestion signal for suggesting maintenance of the part that wears out in accordance with the type of harsh work when the predetermined suggestion condition is satisfied; Includes.

[0052] A maintenance suggestion method according to a fourth aspect is the maintenance suggestion method according to the first aspect, The determining step comprises: estimating the type of the crop based on the type of the work implement and the operating parameters; Includes.

[0053] A maintenance suggestion method according to a fifth aspect is the maintenance suggestion method according to the first aspect, The obtaining includes: further acquiring crop information representative of the type of the crop. Includes.

[0054] A maintenance suggestion method according to a sixth aspect is the maintenance suggestion method according to the first aspect, The outputting step includes: The content of the maintenance suggestion signal is displayed on an external terminal to inform the user. Includes.

[0055] A maintenance suggestion system according to a seventh aspect includes: an acquisition unit that acquires operation information representing a result of measuring an operation parameter as an operation status when the implement performs work in a farm field; an extraction unit that extracts, for each combination of the type of working device, the field, the type of work, and the type of crop for which the working device performed the work in the field, a harsh field in which harsh work that satisfies predetermined harsh conditions has been performed, based on the operation information and a representative value of past operation information acquired for the combination; a proposal unit that outputs a maintenance proposal signal that proposes maintenance of the working device when a harsh work time that indicates a total time for which the work was performed in a harsh field where the harsh work satisfying the harsh conditions was performed for each of the working devices and a total work time that is a total time for which the work was performed in any of the fields satisfy a predetermined proposal condition; Equipped with.

[0056] A maintenance suggestion program according to an eighth aspect of the present invention includes: A maintenance suggestion program for causing a computing device to execute a predetermined process, The process comprises: acquiring operation information representing results of measuring operation parameters as an operation status when the implement performs work in a farm field; extracting, for each combination of the type of working device, the field, the type of work, and the type of crop for which the working device performed the work in the field, a harsh field in which harsh work that satisfies a predetermined harsh condition was performed, based on the operation information and a representative value of past operation information acquired for the combination; outputting a maintenance proposal signal for proposing maintenance of the working device when a harsh work time representing a total time for which the work was performed in a harsh field where the harsh work satisfying the harsh conditions was performed and a total work time as a total time for which the work was performed in any of the fields satisfy a predetermined proposal condition; Includes.

[0057] Although the invention made by the inventor has been specifically described above based on the embodiment, it goes without saying that the present invention is not limited to the embodiment and can be modified in various ways without departing from the gist of the invention. Furthermore, the respective features described in the embodiment can be freely combined within the scope of technical compatibility. [Explanation of symbols]

[0058] 1 Maintenance suggestion system 2. Working Equipment 21 Devices 3. Database 4. Network 5 Maintenance Proposal Device 51 Bus 52 Arithmetic unit 521 Acquisition Department 522 Extraction part 523 Judgment section 524 Proposal Department 53 Storage device 530 Recording media 531 Program Storage Unit 532 Data Storage Unit 54 Communication Equipment 55 Input / Output Devices 6 External Terminal 9. Field

Claims

1. acquiring operation information representing results of measuring operation parameters as an operation status when the implement performs work in a farm field; extracting, for each combination of the type of working device, the field, the type of work, and the type of crop for which the working device performed the work in the field, a harsh field in which harsh work that satisfies a predetermined harsh condition was performed, based on the operation information and a representative value of past operation information acquired for the combination; outputting a maintenance suggestion signal for suggesting maintenance of the working device when a severe work time representing a total time for which the work was performed in the severe field and a total work time as a total time for which the work was performed in any of the fields satisfy a predetermined suggestion condition; Includes Maintenance proposal method.

2. The maintenance suggestion method according to claim 1, The operation information is position information obtained by measuring positions passed by the working device at multiple times while the working device is performing the work in the field; unit area work time information representing the time required per unit area of ​​the field when the work implement performs the work, or vehicle speed information representing the average speed when the work implement moves in the field while performing the work; Including, the representative value is calculated based on a statistical value of the past operation information; The statistical value is at least one of an average value, a median value, and a standard deviation of the past operation information. Including, the harsh condition is met when a ratio between the operating parameter and the representative value exceeds a predetermined range; The suggestion condition is met when the ratio of the hard work hours to the total work hours exceeds a predetermined threshold. Maintenance proposal method.

3. The maintenance suggestion method according to claim 2, The operating parameters are: A state parameter representing a state of each part of the working device; Correspondence information indicating a correspondence relationship between the type of work and the part that is consumed for each type of work; Further comprising: The maintenance suggestion signal is a part maintenance suggestion signal for suggesting maintenance of the part that wears out in accordance with the type of harsh work when the predetermined suggestion condition is satisfied; Includes Maintenance proposal method.

4. The maintenance suggestion method according to claim 1, The extracting step comprises: estimating the type of the crop based on the type of the work implement and the operating parameters; Includes Maintenance proposal method.

5. The maintenance suggestion method according to claim 1, The obtaining includes: further acquiring crop information representative of the type of the crop. Includes Maintenance proposal method.

6. The maintenance suggestion method according to claim 1, The outputting step includes: The content of the maintenance suggestion signal is displayed on an external terminal to inform the user. Includes Maintenance proposal method.

7. an acquisition unit that acquires operation information representing a result of measuring an operation parameter as an operation status when the implement performs work in a farm field; an extraction unit that extracts, for each combination of the type of working device, the field, the type of work, and the type of crop for which the working device performed the work in the field, a harsh field in which harsh work that satisfies predetermined harsh conditions has been performed, based on the operation information and a representative value of past operation information acquired for the combination; a suggestion unit that outputs a maintenance suggestion signal that suggests maintenance of the working device when a severe work time that indicates the total time that the work was performed in the severe field and a total work time that is the total time that the work was performed in any of the fields, for each of the working devices, satisfy a predetermined suggestion condition; Equipped Maintenance suggestion system.

8. A maintenance suggestion program for causing a computing device to execute a predetermined process, The process comprises: acquiring operation information representing results of measuring operation parameters as an operation status when the implement performs work in a farm field; extracting, for each combination of the type of working device, the field, the type of work, and the type of crop for which the working device performed the work in the field, a harsh field in which harsh work that satisfies a predetermined harsh condition was performed, based on the operation information and a representative value of past operation information acquired for the combination; outputting a maintenance suggestion signal for suggesting maintenance of the working device when a severe work time representing a total time for which the work was performed in the severe field and a total work time as a total time for which the work was performed in any of the fields satisfy a predetermined suggestion condition; Includes Maintenance Suggestion Program.

Images