Maintenance management method, maintenance management system, and maintenance management program

Abstract

To determine a maintenance portion to be targeted for maintenance with high accuracy.SOLUTION: A maintenance management method includes determining a degree of deterioration of a plurality of portions included in a working device 30 based on operation information on the working device 30. The maintenance management method also includes determining a maintenance portion to be targeted for maintenance among the plurality of portions based on the degree of deterioration. The maintenance management method further includes outputting maintenance information representing the maintenance portion. Determining the degree of deterioration may include determining the degree of deterioration using deterioration information 410 representing a degree in which, when one or more components included in the portion are driven in a state represented by the operation information, the one or more components deteriorate.SELECTED DRAWING: Figure 9

Description

[Technical field]

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

[0002] In recent years, research has been conducted into determining the timing of maintenance of a work machine using information processing.

[0003] For example, Patent Document 1 discloses a technique for setting the timing of maintenance for each part of a work machine according to a virtual operation time that takes into account the usage status. This virtual operation time is determined using the ratio between the operating status information of a plurality of work machines, such as an average value of engine speed, and the operating status information of the target work machine. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-15260 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the degree of deterioration of the corresponding part is not necessarily proportional to the operating status information, so the virtual operating time may differ from the actual degree of deterioration.

[0006] In view of the above circumstances, one object of the present disclosure is to provide a more accurate notification of the timing of maintenance by taking into account the deterioration of parts. Other objects can be understood from the following description and the description of the embodiment. [Means for solving the problem]

[0007] 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.

[0008] A maintenance management method according to one embodiment for achieving the above object includes determining a deterioration level of a plurality of parts included in the operating device (30) based on operation information of the operating device (30). The maintenance management method also includes determining a maintenance part to be a maintenance target from among the plurality of parts based on the deterioration level. Furthermore, the maintenance management method includes outputting maintenance information representing the maintenance part.

[0009] A maintenance management system (1000) according to an embodiment for achieving the above object includes a deterioration degree determination unit (170), a part determination unit (180), and an output unit (190). The deterioration degree determination unit (170) determines the deterioration degree of a plurality of parts included in the operating device (30) based on operation information of the operating device (30). The part determination unit (180) determines a maintenance part to be a target for maintenance from among the plurality of parts based on the deterioration degree. The output unit (190) outputs maintenance information indicating the maintenance part.

[0010] A maintenance management program (450) according to an embodiment for achieving the above object causes the calculation device (120, 220) to determine a deterioration level of a plurality of parts included in the operation device (30) based on operation information of the operation device (30). The maintenance management program (450) also causes the calculation device (120, 220) to determine a maintenance part to be a maintenance target from among the plurality of parts based on the deterioration level. The maintenance management program (450) also causes the calculation device (120, 220) to output maintenance information indicating the maintenance part. Effect of the Invention

[0011] According to the above embodiment, the maintenance portion where maintenance should be performed can be determined with higher accuracy. [Brief description of the drawings]

[0012] [Figure 1] 1 is a schematic diagram of a maintenance management system according to one embodiment; [Diagram 2] FIG. 4 is a diagram illustrating a configuration of maintenance timing data according to an embodiment. [Diagram 3] 1 is a diagram illustrating a configuration of a maintenance management device according to an embodiment. [Figure 4] FIG. 4 is a diagram illustrating a configuration of calculation formula data according to an embodiment. [Diagram 5] FIG. 2 is a diagram illustrating a functional block executed by the maintenance management system according to the embodiment. [Figure 6] FIG. 2 is a diagram illustrating a configuration of a terminal according to an embodiment. [Figure 7] 1 is a flowchart illustrating a process for determining deterioration coefficient data by a maintenance management system according to an embodiment. [Figure 8] 11 is a diagram for explaining a method for determining a deterioration coefficient from operation information in one embodiment. FIG. [Figure 9] 1 is a flowchart showing a process in which the maintenance management system in one embodiment determines a maintenance part. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] (Embodiment) A maintenance management system 1000 according to this embodiment of the present disclosure will be described with reference to the drawings. In this embodiment, as shown in Fig. 1, the maintenance management system 1000 includes a maintenance management device 100 and a terminal 200. The maintenance management device 100 is communicatively connected to the terminal 200 and one or more operating devices 30 via a network 20, for example, the Internet.

[0014] For example, the operating device 30 acquires operation information representing the state of the operating device 30 while working in the field 500, and transmits the acquired operation information to the maintenance management system 1000, for example, the maintenance management device 100. For example, the operating device 30 includes a positioning device, for example, a GNSS (Global Navigation Satellite System) receiver, a quantum compass, etc., and acquires position information representing the position at each time. The operating device 30 also measures the actual operation time representing the actual operation time, for example, the time from when the engine is started to when it is stopped. The position information and time information representing the actual operation time are included in the operation information and transmitted to the maintenance management system 1000.

[0015] The operation information output by the working device 30 includes information indicating the speed of the working device 30, the steering angle, the drive device 31, for example, the average load factor of the engine, the ON / OFF status of various clutches, and the like. When the working device 30 is a vehicle that pulls a working machine, for example, a tractor, the operation information may include information such as the PTO (power take-off) rotation speed when transmitting power to the working machine, and the hitch height and lift arm angle that indicate the attitude of the working machine. When the working device 30 is equipped with a motor, the operation information may include the power consumption of the motor. When the working device 30 is a combine, the operation information may include the harvest amount, the amount of straw removed, and the like. The working device 30 includes, for example, a combine formed integrally with the working machine that performs the work, a tractor that pulls the working machine that performs the work, and the like.

[0016] The maintenance management system 1000 determines which parts of the work device 30 performing work in the field 500 are to be subject to maintenance, and notifies a user, such as a worker or the owner of the work device 30, of the maintenance parts. For example, as shown in Fig. 2, the maintenance timing for each part of the work device 30 is represented using operation time. For example, "part A" becomes subject to maintenance when the operation time reaches the time represented as the maintenance timing (e.g. 100 hours, 200 hours, 300 hours, etc.).

[0017] Here, the maintenance management system 1000 determines a virtual operation time that takes into consideration the degree of deterioration of each part of the operation device 30, based on the operation information of the operation device 30 and the actual operation time during which the operation device 30 actually operated. For example, the maintenance management system 1000 has deterioration information that indicates the degree of deterioration, for example, the amount of wear, when the operation device 30 operates for a predetermined period of time in a state represented in the operation information. The maintenance management system 1000 determines the virtual operation time based on the operation information, deterioration information, and actual operation time of the operation device 30. The maintenance management system 1000 determines the part whose virtual operation time has reached the maintenance time as the maintenance part.

[0018] In this way, the maintenance management system 1000 determines the parts to be maintained based on the virtual operating time that represents the operating time according to the degree of deterioration of each part. Here, each part of the working device 30 represents a part or a group of parts that make up the working device 30. For example, when the working device 30 is a harvester, it includes a reaping unit that reaps crops in the field 500, a threshing unit that threshes the harvested crops, a traveling unit that moves the working device 30, and the like.

[0019] (Maintenance Management System Configuration) The configuration of the maintenance management device 100 of the maintenance management system 1000 shown in FIG. 1 will be described. As shown in FIG. 3, the maintenance management device 100 includes an input / output device 110, a calculation device 120, a communication device 130, and a storage device 140. The maintenance management device 100 is a computer including, for example, a cloud server. Information for the calculation device 120 to execute processing is input to the input / output device 110. The input / output device 110 outputs the result of the calculation device 120 executing the processing. The input / output device 110 includes various input devices and output devices, including, for example, a keyboard, a mouse, a microphone, a display, a speaker, a touch panel, and the like. The input / output device 110 may be omitted.

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

[0021] The storage device 140 stores various data for notifying the user of maintenance information, such as maintenance timing data 400, deterioration information 410, calculation formula data 420, deterioration coefficient data 430, work performance data 440, and a maintenance management program 450. The storage device 140 is used as a non-transitory tangible storage medium for storing the maintenance management program 450. The maintenance management program 450 may be provided as a computer program product recorded in a computer-readable storage medium 1, or may be provided as a computer program product downloadable from a server.

[0022] As shown in FIG. 2, the maintenance timing data 400 indicates the timing of maintenance for each part of the operating device 30 and the number of times the maintenance has been performed. For example, the maintenance timing data 400 stores the maintenance timing for each part. The maintenance timing indicates, for example, the degree of deterioration when the part is maintained, for example, the virtual operation time. In FIG. 2, the maintenance timing indicated for "part A" indicates that "part A" is to be maintained when the virtual operation time corresponding to "part A" is 100 hours, 200 hours, or 300 hours. The maintenance timing indicated for "part B" indicates that "part B" is to be maintained when the virtual operation time corresponding to "part B" is 200 hours, 600 hours, or 1000 hours.

[0023] The deterioration information 410 shown in FIG. 3 indicates the degree of deterioration of each part, for example the amount of wear of parts included in the part, when the working device 30 is operated for a predetermined time in a state represented by the operation information of the working device 30, for example the load rate of the drive device 31, the speed, etc. The deterioration information 410 indicates the relationship between the operation information measured in the past, for example the load rate of the drive device 31, and the degree of deterioration of each part, for example the amount of wear. For example, the deterioration information 410 indicates the relationship between the average of the operation information in a predetermined period and the amount of wear in that period. The deterioration information 410 may be determined from a value measured by a load test of the working device 30, or may be determined from values ​​obtained by measuring the operation information and amount of wear of the working device 30 that is actually operating. When the working device 30 has multiple drive devices 31, for example an engine and a motor, the deterioration information 410 may indicate the relationship between the amount of wear of parts included in each part, for example the drive wheels 32, and the average load rate of the drive device 31 that provides driving force to the parts.

[0024] In the calculation formula data 420, for example, as shown in FIG. 4, one or more deterioration coefficients k i A formula for calculating the deterioration degree, for example, the virtual operating time, from one or more deterioration coefficients k i is calculated based on the operation information of the maintenance device 30. t represents the actual operation time during which the maintenance device 30 actually operates. For example, when the maintenance device 30 operates for t hours, the deterioration degree of the part A (for example, the virtual operation time) is calculated by the function f A (k i , t), and the deterioration degree of part B is calculated by the function f B (k i , t), and the deterioration degree of part C is calculated by the function f C (k i , t).

[0025] The deterioration coefficient data 430 shown in FIG. 3 is a deterioration coefficient k i Degradation coefficient k i is determined based on the operation information of the operating device 30 for which maintenance timing is to be determined, and indicates whether each part of the target operating device 30 is more susceptible to deterioration than each part of other operating devices 30.

[0026] The work performance data 440 stores operation information acquired from one or more work devices 30.

[0027] The arithmetic device 120 reads out and executes the maintenance management program 450 from the storage device 140, and performs various data processing for determining a maintenance part. For example, the arithmetic device 120 includes a central processing unit (CPU; Central Processing Unit) and the like.

[0028] 5, the calculation device 120 realizes a data storage unit 150, a deterioration coefficient determination unit 160, a deterioration degree determination unit 170, a part determination unit 180, and an output unit 190. The data storage unit 150 stores maintenance timing data 400, deterioration information 410, calculation formula data 420, deterioration coefficient data 430, and work performance data 440. The deterioration coefficient determination unit 160 determines a deterioration coefficient k for the operation information based on the operation information of one or more operation devices 30. i The deterioration degree determination unit 170 determines a virtual operation time as a deterioration degree representing the degree of deterioration of each part of the operating device 30 based on the operation information of the operating device 30 and the deterioration coefficient data 430. The part determination unit 180 determines a maintenance part based on the maintenance timing data 400 and the deterioration degree. The output unit 190 outputs maintenance information representing the maintenance part to the terminal 200.

[0029] Next, the configuration of the terminal 200 shown in Fig. 1 will be described. As shown in Fig. 6, the terminal 200 includes an input / output device 210, a calculation device 220, a communication device 230, and a storage device 240. The terminal 200 includes, for example, a computer, a tablet, a mobile phone, and the like. Information for the calculation device 220 to execute processing is input to the input / output device 210. In addition, the input / output device 210 outputs the result of the calculation device 220 executing the processing. The input / output device 210 includes various input devices and output devices, and includes, for example, a keyboard, a mouse, a microphone, a display, a speaker, a touch panel, and the like.

[0030] The communication device 230 is communicatively connected to the network 20 and communicates with each device via the network 20. The communication device 230 transfers a signal acquired from the maintenance management device 100 to the arithmetic device 220. The communication device 230 also transfers a signal generated by the arithmetic device 220 to the maintenance management device 100. The communication device 230 includes various interfaces such as a transceiver used for wireless communication such as a wireless LAN (Local Area Network) or a cellular network, a NIC (Network Interface Card), and a USB (Universal Serial Bus).

[0031] The storage device 240 stores various data for notifying the user of maintenance information, for example, a display program 460. The storage device 240 is used as a non-transitory tangible storage medium for storing the display program 460. The display program 460 may be provided as a computer program product recorded in a computer-readable storage medium 2, or may be provided as a computer program product downloadable from a server.

[0032] 5, the arithmetic device 220 cooperates with the input / output device 210 to implement the display unit 250 by reading and executing the display program 460. The display unit 250 acquires maintenance information from the maintenance management device 100 and displays the maintenance information on the input / output device 210. For example, when the maintenance management device 100 notifies the maintenance information by email, the display unit 250 includes software for viewing the email.

[0033] (Maintenance management system operation) First, a method for determining the deterioration coefficient data 430 shown in FIG. 3, which is used when the maintenance management system 1000 determines the deterioration degree (for example, virtual operation time), will be described. When the work device 30 shown in FIG. 1 performs work in the field 500, it transmits operation information to the arithmetic device 120 of the maintenance management device 100. For example, when the work device 30 stops the drive device 31, such as an engine or an electric motor, it transmits operation information from when the drive device 31 is started to when it is stopped to the arithmetic device 120 of the maintenance management device 100. When the arithmetic device 120 receives the operation information of the work device 30, it reads and executes the maintenance management program 450. The data storage unit 150, which is realized by the arithmetic device 120 by executing the maintenance management program 450, stores the operation information in the work performance data 440 as a part of the process of the maintenance management method. The operation information is stored in the work performance data 440 in association with information, such as an identifier, representing the work device 30 that is the sender.

[0034] Furthermore, when the arithmetic device 120 receives operation information related to a predetermined number of maintenance devices 30, it reads and executes the maintenance management program 450, and starts the process shown in Fig. 7 which is part of the maintenance management method. The arithmetic device 120 may start the process shown in Fig. 7 when a predetermined time has passed, for example, when a predetermined period of time has passed since the maintenance device 30 was sold.

[0035] In step S110, the deterioration coefficient determination unit 160 realized by the calculation device 120 determines operation information for the operation information of the maintenance device 30. The operation information represents, for example, statistical information regarding the operation information of the maintenance device 30. The deterioration coefficient determination unit 160 determines the operation information for each of the one or more maintenance devices 30, for example.

[0036] For example, when the operation information represents statistical information regarding the load rate of the driving device 31, it represents the average value, maximum value, minimum value, median value, variance, etc. of the load rate. When the operation information represents statistical information regarding the speed of the working device 30, it represents the average value, maximum value, minimum value, median value, variance, etc. of the speed of the working device 30. When the operation information represents statistical information regarding the amount of straw discharged by the working device 30, it represents the average value, maximum value, minimum value, median value, variance, etc. of the amount of straw discharged by the working device 30.

[0037] For example, when the operation information represents statistical information regarding the ON / OFF status of a specific clutch, it represents the time that the specific clutch was ON (connected) per unit time. The operation information may also represent the total time that the specific clutch was ON. The operation information may also represent the number of times that the specific clutch changed from an OFF state to an ON state per unit time. The operation information may include all or some of these values.

[0038] In step S120, the deterioration coefficient determination unit 160 determines the statistical value of the operation information, for example, the average value and variance. For example, when the operation information represents an average load rate which is the average value of the load rates of the driving devices 31, the statistical value of the operation information represents the average value and variance for the average load rate of the driving devices 31 in all the working devices 30.

[0039] In step S130, the degradation coefficient determination unit 160 determines the degradation coefficient k i Determine the degradation factor k i represents the degree of deterioration in each part of the target working apparatus 30 compared to other working apparatuses 30, for example, working apparatuses 30 of the same type. i also represents the position of the operation information of the target working device 30 in the distribution of the operation information. i is calculated, for example, by mathematical calculation processing from the distribution of the motion information of the multiple task apparatuses 30 and the motion information of the target task apparatus 30.

[0040] Degradation factor k for motion information iFor example, the deterioration coefficient k may be a value corresponding to a range in which the operation information of the target operating device 30 falls within the operation information of the multiple operating devices 30, for example, a value corresponding to less than the bottom 5%. i As shown in Figure 8, n Among them, the two adjacent thresholds Z n Identify the two thresholds Z n For example, the degradation coefficient k i is the threshold Z n For example, the degradation coefficient k i represents a fixed value S1 when the operation information is smaller than Z1, and represents a fixed value S2 larger than the fixed value S1 when the operation information is equal to or larger than Z1 and smaller than Z2. i represents a fixed value S3 that is greater than the fixed value S2 when the operation information is equal to or greater than Z2 and smaller than Z3, and represents a fixed value S4 that is greater than the fixed value S3 when the operation information is equal to or greater than Z3 and smaller than Z4. i represents a fixed value S5 that is greater than the fixed value S4 when the operation information is greater than or equal to Z4 and less than Z5. i When the operation information is in the range of Z5 or more and less than Z6, it represents a fixed value S6 that is greater than the fixed value S5. Since Z6 represents the average value of the operation information, when the operation information is in the range of Z6 or more and less than Z7, the degradation coefficient k i represents a fixed value S7 that is the same as the fixed value S6. i represents a fixed value S8 larger than the fixed value S7 when the operation information is equal to or larger than Z7 and smaller than Z8, and represents a fixed value S9 larger than the fixed value S8 when the operation information is equal to or larger than Z8 and smaller than Z9. i The operation information is Z9 or higher and Z 10 If it is less than S, then S is greater than S 10 and the operation information is Z 10 Above and Z 11 If smaller than S, the fixed value 10 Larger fixed value S 11 Degradation coefficient k i The operation information is Z 11 If it is greater than or equal to the fixed value S 11 Larger fixed value S 12Represents.

[0041] Z1 to Z 11 is set based on the number of working devices 30 assigned to the operation information assigned to each operation score. For example, Z1 is set so that the ratio of working devices 30 with operation information smaller than Z1 is 5%. Z2 is set so that the ratio of working devices 30 with operation information equal to or larger than Z1 and smaller than Z2 is 10%. 11 Also, two adjacent Z n For example, if it is assumed that the distribution of the operation information is a normal distribution, Z n is calculated using equation (1).

number

[0042] Fixed value S n For example, Z n and deterioration information 410. The deterioration information 410 indicates the degree of deterioration, for example the amount of wear, of a part included in one part, for example the drive wheel 32, when the working device 30 is operated in a state represented by operation information, for example the average load rate of the drive device 31. For example, the deterioration information 410 of the drive wheel 32 included in the traveling part indicates the amount of wear of the drive wheel 32 relative to the average load rate of the drive device 31 in a predetermined period. For example, the deterioration information 410 indicates the amount of wear of a part when the working device 30 is operated for a predetermined period, for example 100 hours. The deterioration information 410 indicates an approximation expression, for example a linear function, indicating the degree of deterioration for the operation information based on the results of a load test, for example.

[0043] Fixed value S n For example, the two adjacent thresholds Z n For example, a fixed value S n are the two adjacent thresholds Z n One of the thresholds Z n For example, the fixed value S n is the degree of deterioration in the average value of the motion information, and is the two adjacent thresholds Z n One of the thresholds Z n This represents the ratio of the degree of deterioration in

[0044] The deterioration information 410 shown in FIG. 8 represents an estimated value of the amount of wear of the drive wheel 32 when the drive device 31 of the working device 30 is driven for a predetermined time at an average load rate of Z1. For example, when the drive device 31 is driven for a predetermined time at an average load rate of Z1, the estimated value of the amount of wear of the drive wheel 32 is V1. Similarly, when the drive device 31 is driven for a predetermined time at an average load rate of Z2, the estimated value of the amount of wear of the drive wheel 32 is V2. When the drive device 31 is driven for a predetermined time at an average load rate of Z3, the estimated value of the amount of wear of the drive wheel 32 is V3. When the drive device 31 is driven for a predetermined time at an average load rate of Z4, the estimated value of the amount of wear of the drive wheel 32 is V4. When the drive device 31 is driven for a predetermined time at an average load rate of Z5, the estimated value of the amount of wear of the drive wheel 32 is V5. When the drive device 31 is driven for a predetermined time at an average load rate of Z6, the estimated value of the amount of wear of the drive wheel 32 is V6. When the drive unit 31 is driven at an average load rate of Z7 for a predetermined time, the estimated amount of wear of the drive wheels 32 is V7. When the drive unit 31 is driven at an average load rate of Z8 for a predetermined time, the estimated amount of wear of the drive wheels 32 is V8. When the drive unit 31 is driven at an average load rate of Z9 for a predetermined time, the estimated amount of wear of the drive wheels 32 is V9. When the drive unit 31 is driven at an average load rate of Z 10 When driven at an average load factor of V, the estimated wear of the drive wheel 32 is V 10For a predetermined time, the driving device 31 is Z 11 When driven at an average load factor of V, the estimated wear of the drive wheel 32 is V 11 It is.

[0045] Here, since the average value of the average load factor of the drive unit 31 represents Z6, the degree of deterioration (amount of wear) in the average value of the operation information is estimated to be V6. i represents a fixed value S1, and is expressed by the ratio of V1, which is the operation information at Z1, to V6, which is the average value of the operation information. Similarly, the deterioration coefficient k i represents a fixed value S2, and is expressed by the ratio of V2, which is the operation information at Z2, to V6, which is the average value of the operation information. The deterioration coefficient k i represents a fixed value S3, and is expressed by the ratio of V3, which is the operation information at Z3, to V6, which is the average value of the operation information. The degradation coefficient k i represents a fixed value S4, and is expressed by the ratio of V4, which is the operation information at Z4, to V6, which is the average value of the operation information. The degradation coefficient k i represents a fixed value S5, and is expressed by the ratio of V5, which is the operation information at Z5, to V6, which is the average value of the operation information. In addition, the deterioration coefficient k i represents a fixed value S6, which is expressed by the ratio of V6, which is the motion information in Z6, to V6, which is the average value of the motion information. Therefore, the fixed value S6 represents 1. In this way, the fixed value S6 when the motion information is smaller than the average value Z6 n is expressed by equation (2).

number

[0046] Degradation factor k when the operating information is less than Z7 and greater than or equal to Z6 i represents a fixed value S7, and is expressed by the ratio of V6, which is the operation information at Z6, to V6, which is the average value of the operation information. The degradation coefficient k i represents a fixed value S8, and is expressed by the ratio of V7, which is the operation information at Z7, to V6, which is the average value of the operation information. The degradation coefficient k i represents a fixed value S9, and is expressed by the ratio of V8, which is the motion information at Z8, to V6, which is the average value of the motion information. 10 Degradation factor k when it is smaller than Z9 and is equal to or greater than Z9 i is a fixed value S 10 It is expressed by the ratio of V9, which is the motion information at Z9, to V6, which is the average motion information. 11 Smaller and Z 10 Degradation factor k when i is a fixed value S 11 represents the average value of the motion information, V6, and Z 10 V, which is the operating information 10 The motion information is expressed as the ratio of Z 11 Degradation factor k when i is a fixed value S 12 represents the average value of the motion information, V6, and Z 11 V, which is the operating information 11 In this way, the fixed value S when the motion information is equal to or greater than the average value Z6 is n is expressed by equation (3).

number

[0047] In this way, the degradation coefficient determining unit 160 determines the degradation coefficient k i The degradation coefficient determination unit 160 determines the degradation coefficient k i is stored in the deterioration coefficient data 430. In this manner, the maintenance management device 100 determines the deterioration coefficient data 430.

[0048] Next, a method of determining a maintenance part using the deterioration coefficient data 430 will be described. When the work device 30 shown in FIG. 1 performs work in the field 500, it transmits operation information to the arithmetic device 120 of the maintenance management device 100. When the arithmetic device 120 receives the operation information of the work device 30, it reads and executes a maintenance management program 450. The arithmetic device 120 of the maintenance management device 100 may read and execute the maintenance management program 450 when it receives a request signal requesting maintenance information for each part of the work device 30 from the arithmetic device 220 of the terminal 200. By executing the maintenance management program 450, the arithmetic device 120 starts the process shown in FIG. 9, which is part of the maintenance management method.

[0049] In step S210, the data storage unit 150 realized by the calculation device 120 determines the actual operation time during which the maintenance device 30 actually operated, based on the operation information of the maintenance device 30. For example, the data storage unit 150 extracts the start time when the engine was started and the stop time when the engine was stopped from the operation information. The data storage unit 150 determines the actual operation time as the time obtained by adding the time from the extracted start time to the stop time to the past actual operation time.

[0050] Furthermore, the data storage unit 150 identifies the maintenance device 30 that transmitted the operation information. For example, the data storage unit 150 identifies the source maintenance device 30 from the operation information. Furthermore, the data storage unit 150 may identify the maintenance device 30 from information indicating the source of the operation information.

[0051] The determined actual operation time is stored in the work performance data 440 in association with the acquired operation information and the identifier of the identified work device 30.

[0052] 7, in step S220, the deterioration level determining unit 170 determines the operation information of the operation device 30 that transmitted the operation information, based on the operation result data 440. The operation information represents, for example, statistical information related to the operation information.

[0053] In step S230, the degradation degree determining unit 170 determines the degradation coefficient k based on the determined operation information and the degradation coefficient data 430. i The degradation degree determining unit 170 determines the degradation coefficient k for the determined operation information from the degradation coefficient data 430. i For example, when the operation information is smaller than Z1, the degradation degree determining unit 170 extracts the degradation coefficient k i When the operation information is smaller than Z2 and equal to or greater than Z1, the degradation coefficient k i When the operation information is smaller than Z3 and equal to or greater than Z2, the degradation coefficient k i When the operation information is smaller than Z4 and equal to or greater than Z3, the degradation coefficient k i When the operation information is smaller than Z5 and equal to or greater than Z4, the degradation coefficient k i When the operation information is smaller than Z6 and equal to or greater than Z5, the degradation coefficient k i When the operation information is smaller than Z7 and equal to or greater than Z6, the degradation coefficient k i When the operation information is smaller than Z8 and equal to or greater than Z7, the degradation coefficient k i When the operation information is smaller than Z9 and equal to or greater than Z8, the degradation coefficient k i Then, a fixed value S9 is determined. 10 When it is smaller than Z9 and Z9 is larger than Z9, the degradation factor k i As a fixed value S 10Determine the operation information Z 11 Smaller and Z 10 When it is equal to or greater than this, the degradation factor k i As a fixed value S 11 Determine the operation information Z 11 When it is equal to or greater than this, the degradation factor k i As a fixed value S 12 Determine.

[0054] In step S240, the degradation degree determining unit 170 determines the degradation coefficient k i The deterioration level representing the degree of deterioration of each part is determined based on the actual operation time and the calculation formula data 420 shown in FIG. 4. For example, the deterioration level of "part A" is calculated by the function f A (k i , t), where t represents the actual operation time during which the operating device 30 is actually operated. Similarly, the deterioration degree of "part B" is determined by a function f B (k i , t), where t represents the actual operation time during which the operating device 30 actually operates. The deterioration degree of the "part C" is determined by a function f C (k i , t), where t represents the actual operating time during which the operating device 30 actually operated. For example, the determined deterioration degree represents a virtual operating time that can be compared with the maintenance timing in FIG. 2. In this case, the virtual operating time is determined from the estimated degree of deterioration by estimating the degree of deterioration of the parts included in the portion, such as the amount of wear, from the operating information of the operating device 30, and represents a value that takes into account the degree of deterioration of each portion. For example, the deterioration degree is larger for an operating device 30 that operated under conditions where the parts were more deteriorated.

[0055] 9, the part determination unit 180 determines a maintenance part representing a part to be subjected to maintenance based on the deterioration degree. The part determination unit 180 first determines the maintenance timing for the next maintenance to be performed for each part based on the maintenance timing data 400 shown in FIG.

[0056] For example, in the example shown in FIG. 2, the number of maintenance times for "part A" is "1", which indicates that the next maintenance time for "part A" is 200 hours. The number of maintenance times for "part B" is "1", which indicates that the maintenance time for "part B" is 600 hours. The number of maintenance times for "part C" is "2", which indicates that the maintenance time for "part C" is 500 hours.

[0057] Next, the part determination unit 180 compares the deterioration level (e.g., virtual operating time) and the maintenance time for each part to determine a maintenance part representing a target for maintenance. For example, the part determination unit 180 determines a part whose deterioration level has reached the maintenance time as a maintenance part. The part determination unit 180 may also determine a part whose deterioration level has reached a time obtained by subtracting a predetermined time from the maintenance time as a maintenance part.

[0058] 9, the output unit 190 outputs maintenance information representing the determined maintenance part. For example, the output unit 190 outputs the maintenance information forming an image representing the maintenance part and the deterioration degree of the maintenance part to the terminal 200. The maintenance information may also form an image representing the deterioration degree of a plurality of parts provided on the working device 30.

[0059] In step S270, display unit 250 of terminal 200 displays the maintenance information acquired from maintenance management device 100 on input / output device 210. For example, display unit 250 displays an image representing a maintenance part that is the target of maintenance and is represented in the maintenance information. Display unit 250 also displays an image representing the maintenance part and the deterioration degree of the maintenance part represented in the maintenance information. Display unit 250 may further display an image representing the deterioration degree of a plurality of parts provided on working device 30. Display unit 250 may also display an image representing a worn part out of a plurality of parts included in the maintenance part.

[0060] In this way, the maintenance management system 1000 estimates the degree of deterioration of the parts included in each part, and determines the parts to be maintained based on the deterioration level that indicates the estimated degree of deterioration. As a result, the maintenance management system 1000 determines the parts to be subject to maintenance according to the degree of deterioration of the parts in each part. This allows the maintenance management system 1000 to determine the parts to be maintained with higher accuracy.

[0061] (Modification) The configuration described in the embodiment is an example, and the configuration can be changed within a range that does not impair the function. For example, in the deterioration information 410, an example is shown in which the degree of deterioration of a part with respect to the operation information is the amount of wear, but this is not limited to this. The degree of deterioration of a part can be selected from any number of values ​​that represent the degree of deterioration of the part, and may represent the degree of deformation of the part, such as distortion of the part, for example, elongation, contraction, twisting, tilt, etc. For example, the degree of deterioration of a chain may represent the elongation of the chain.

[0062] Further, although the deterioration information 410 shows an example of the degree of deterioration of a part for one piece of operation information, it may show the degree of deterioration of a part for a plurality of pieces of operation information. For example, the deterioration information 410 may show the degree of deterioration of a part for a combination of operation information related to the drive device 31 that provides driving force to the part and operation information related to the ON / OFF state of the clutch that transmits driving force to the part. Furthermore, the deterioration information 410 may show the degree of deterioration of a part for a combination of operation information related to the drive device 31 and the speed of the working device 30. Furthermore, when the working device 30 is a combine harvester, the deterioration information 410 may show the degree of deterioration of a part for a combination of operation information related to the drive device 31 and the amount of straw discharged by the working device 30.

[0063] The deterioration information 410 shows an example of the degree of deterioration of each part when the working device 30 is operated for a predetermined time in a state represented by the operation information, but is not limited to this. For example, the deterioration information 410 may show the degree of deterioration of each part according to the state represented by the operation information, for example, the number of clutch switching times, regardless of the time the working device 30 is operating. The deterioration coefficient k used when determining the deterioration degree i When the deterioration degree is determined from the deterioration information 410 that is not dependent on the operation time of the operation device 30, the function f A (k i , t) does not have to use t as an argument.

[0064] Although an example in which the deterioration degree indicating the degree of deterioration indicates the virtual operation time has been shown, the present invention is not limited to this. The deterioration degree may be any value indicating the degree to which a part has deteriorated due to the operation of the operating device 30. For example, the deterioration degree may indicate an estimated wear amount of a part. In this case, the maintenance timing data 400 may indicate the amount of wear permitted for the operation of the operating device 30, and a maintenance part may be determined based on the amount of wear and the deterioration degree indicated in the maintenance timing data 400. In addition, in step S240 shown in FIG. 9, the part determination unit 180 may determine a maintenance wear amount indicating the amount of wear of a part at the time of performing maintenance from the virtual operation time indicated by the maintenance timing data 400. The part determination unit 180 determines a maintenance part by comparing the determined maintenance wear amount with the deterioration degree.

[0065] The deterioration level may be determined based on the estimated degree of deterioration, for example, the amount of wear, of each of the multiple parts included in the part. The deterioration level may also be determined based on the estimated degree of deterioration, for example, the amount of wear, of some of the multiple parts, for example, one part.

[0066] The deterioration degree is calculated by adding the actual operation time during which the operating device 30 has actually operated in the past and the deterioration coefficient k iHowever, the present invention is not limited to this. For example, a partial deterioration degree representing the deterioration degree during a period may be determined based on operation information acquired by one reception from the maintenance device 30, for example, operation information during a period from when the drive device 31 is started to when it is stopped. In this case, the deterioration degree of each part is expressed by accumulating the partial deterioration degrees.

[0067] The above-described embodiment and modified examples are merely examples, and the configurations described in each embodiment and modified example may be arbitrarily changed and / or arbitrarily combined as long as the functions are not impaired. Furthermore, some of the functions described in the embodiment and modified examples may be omitted as long as the necessary functions can be realized. For example, the maintenance management system 1000 shown in FIG. 1 may not include the terminal 200. For example, the maintenance management device 100 may output maintenance information to a terminal not included in the maintenance management system 1000. All or part of the processing of the maintenance management device 100 may be executed by the maintenance management device 100 or the terminal 200. The maintenance management program 450 may include a display program 460.

[0068] (Additional Note) The maintenance management method, the maintenance management system, and the maintenance management program described in each embodiment can be described as follows.

[0069] A maintenance management method according to a first aspect includes: determining a deterioration level of a plurality of parts included in a work device based on operation information of the work device; determining a maintenance part to be a maintenance target among the plurality of parts based on the deterioration degree; outputting maintenance information indicating the maintenance part; Includes.

[0070] A maintenance management method according to a second aspect is the maintenance management method according to the first aspect, Determining the degree of deterioration includes: determining the degree of deterioration of one or more components included in the part by using deterioration information that indicates a degree of deterioration of the one or more components when the one or more components are operated in a state represented by the operation information; Including, The deterioration information is set in advance.

[0071] A maintenance management method according to a third aspect is the maintenance management method according to the second aspect, The deterioration information indicates the degree of deterioration of the one or more parts when the one or more parts are driven for a predetermined period of time in a state represented by the operation information.

[0072] A maintenance management method according to a fourth aspect is the maintenance management method according to the second or third aspect, The degree to which the one or more components deteriorate represents the amount of wear.

[0073] A maintenance management method according to a fifth aspect is a maintenance management method according to any one of the second to fourth aspects, the deterioration information includes information representing a degree of deterioration of the first component with respect to a load factor of a drive device that applies a driving force to the first component included in the portion, Determining the degree of deterioration includes: determining the deterioration level of the first component based on the load factor included in the operation information; Includes.

[0074] A maintenance management device according to a sixth aspect of the present invention includes: a deterioration level determination unit that determines a deterioration level of a plurality of parts included in a working device based on operation information of the working device; a part determination unit that determines a maintenance part to be a maintenance target among the plurality of parts based on the deterioration degree; an output unit that outputs maintenance information indicating the maintenance part; Equipped with.

[0075] A maintenance management program according to a seventh aspect of the present invention includes: determining a deterioration level of a plurality of parts included in a work device based on operation information of the work device; determining a maintenance part to be a maintenance target among the plurality of parts based on the deterioration degree; outputting maintenance information indicating the maintenance part; The calculation device executes the following. [Explanation of symbols]

[0076] 1, 2: Storage medium 20: Network 30: Work equipment 31: Drive unit 32: Drive wheel 100: Maintenance management device 110: Input / Output device 120: Arithmetic device 130: Communication equipment 140: Storage device 150: Data storage unit 160: Degradation coefficient determination unit 170: Deterioration degree determination section 180: Part determination part 190: Output section 200: Terminal 210: Input / Output device 220: Arithmetic device 230:Communication equipment 240: Storage device 250:Display section 400: Maintenance time data 410: Deterioration information 420: Calculation formula data 430: Deterioration coefficient data 440: Work performance data 450: Maintenance Management Program 460: Display program 500: Field 1000: Maintenance Management System

Claims

1. determining a deterioration level of a plurality of parts included in a work device based on operation information of the work device; determining a maintenance part to be a maintenance target among the plurality of parts based on the deterioration degree; outputting maintenance information indicating the maintenance part; A maintenance management method including:

2. Determining the degree of deterioration includes: determining the degree of deterioration of one or more components included in the portion by using deterioration information that indicates a degree of deterioration of the one or more components when the one or more components are operated in a state represented by the operation information; Including, The deterioration information is set in advance. The maintenance management method according to claim 1 .

3. The deterioration information indicates a degree of deterioration of the one or more parts when the one or more parts are operated for a predetermined period of time in a state indicated by the operation information. The maintenance management method according to claim 2 .

4. The degree to which the one or more components deteriorate represents the amount of wear. The maintenance management method according to claim 2 or 3.

5. the deterioration information includes information representing a degree of deterioration of the first component with respect to a load factor of a drive device that applies a driving force to the first component included in the portion, Determining the degree of deterioration includes: determining the deterioration level of the first component based on the load factor included in the operation information; The maintenance management method according to claim 2 or 3, comprising:

6. a deterioration level determination unit that determines a deterioration level of a plurality of parts included in a working device based on operation information of the working device; a part determination unit that determines a maintenance part to be a maintenance target among the plurality of parts based on the deterioration degree; an output unit that outputs maintenance information indicating the maintenance part; A maintenance management system comprising:

7. determining a deterioration level of a plurality of parts included in a work device based on operation information of the work device; determining a maintenance part to be a maintenance target among the plurality of parts based on the deterioration degree; outputting maintenance information indicating the maintenance part; A maintenance management program that causes a computing device to execute the above.

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