Excavator management device, management system, excavator

Abstract

To perform a specified motion at a proper timing.SOLUTION: A shovel management device includes: an information acquisition portion acquiring operation information of a shovel during a specified motion; a change portion changing a timing when the shovel performs the specified motion according to a degree of abnormality calculated using the operation information; and an output portion outputting a notification exhibiting that the timing is changed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a management device for a shovel, a management system, and a shovel. [Background technology]

[0002] 2. Description of the Related Art There is a conventional technique for determining whether or not an abnormality exists in a shovel based on detection values ​​of physical quantities acquired while the shovel is performing a certain specified operation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6039696 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional technology, the timing for performing the prescribed operation of the shovel is not specified. However, the way in which the state of the shovel changes varies depending on the environment in which the shovel is used, even when similar work is being performed. For this reason, in order to predict an abnormality, it is preferable to change the timing for performing the prescribed operation depending on the state of the shovel.

[0005] In view of the above circumstances, an object of the present invention is to perform a prescribed operation at an appropriate time. [Means for solving the problem]

[0006] The management device for a shovel according to an embodiment of the present invention is This is an action of moving from a predetermined first specified position to a predetermined second specified position. An information acquisition unit that acquires operation information of a shovel during a specified operation, and according to an abnormality degree calculated using the operation information, next The shovel is operated in the prescribed manner. The timing of the execution of the The timing control unit includes a change unit that changes the timing, and an output unit that outputs a notification that the timing has been changed.

[0007] A shovel management system according to an embodiment of the present invention is a shovel management system including a shovel and a management device for the shovel, This is an action of moving from a predetermined first specified position to a predetermined second specified position. An information acquisition unit that acquires operation information of a shovel during a specified operation, and according to an abnormality degree calculated using the operation information, next The shovel is operated in the prescribed manner. The timing of the execution of the The timing change unit has a change unit that changes the timing, and an output unit that outputs a notification that the timing has been changed to a display device of the shovel.

[0008] The shovel according to the embodiment of the present invention is This is an action of moving from a predetermined first specified position to a predetermined second specified position. A transmission unit that collects operation information during a specified operation and transmits it to a management device. Based on the abnormality degree calculated using the operation information, Next, the above Default behavior The timing of the execution of the The device includes a receiving unit that receives a notification indicating that the timing has been changed, and a display control unit that causes a display device to display a notification indicating that the timing has been changed. Effect of the Invention

[0009] A prescribed action can be performed at an appropriate time. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram showing an example of a management system for an excavator. [Diagram 2] FIG. 1 is a configuration diagram showing an example of a management system for an excavator. [Diagram 3] FIG. 2 illustrates an example of a hardware configuration of a management apparatus. [Figure 4] FIG. 4 illustrates an example of an operation information storage unit. [Diagram 5] FIG. 2 is a diagram illustrating a functional configuration of a management device. [Figure 6] 11 is a first flowchart illustrating a process of a diagnosis unit. [Figure 7] 13 is a second flowchart illustrating the process of the diagnosis unit. [Figure 8]11 is a diagram illustrating the process of a diagnosis timing changing unit. FIG. [Figure 9] FIG. 13 is a diagram showing an example of a main screen. [Figure 10] FIG. 13 is a diagram showing an example of a diagnosis menu screen. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] (Embodiment) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the drawings. Fig. 1 is a schematic diagram showing an example of a management system for an excavator.

[0012] The shovel management system SYS of this embodiment includes a shovel 100, a management device 300, and a support device 400 for the shovel 100. In the shovel management system SYS, the shovel 100, the management device 300, and the support device 400 communicate with each other via a network. The management device 300 manages the shovel 100. The support device 400 supports the work of the shovel 100. In the following description, the shovel management system SYS will be referred to as the management system SYS.

[0013] The excavator 100 of this embodiment is an example of a work machine. The excavator 100 includes a lower traveling body 1, an upper rotating body 3 rotatably mounted on the lower traveling body 1 via a rotating mechanism 2, a boom 4, an arm 5, and a bucket 6 as attachments (working devices), and a cabin 10.

[0014] The lower traveling body 1 includes, for example, a pair of left and right crawlers, and each of the crawlers is hydraulically driven by traveling hydraulic motors 1A, 1B (see FIG. 2) to be self-propelled.

[0015] The upper rotating body 3 rotates relative to the lower traveling body 1 by being driven by a rotation hydraulic motor 2A (see FIG. 2).

[0016] The boom 4 is pivotally attached to the front center of the upper rotating body 3 so as to be able to tilt up and down, an arm 5 is pivotally attached to the tip of the boom 4 so as to be able to rotate up and down, and a bucket 6 is pivotally attached to the tip of the arm 5 so as to be able to rotate up and down. The boom 4, arm 5, and bucket 6 are hydraulically driven by a boom cylinder 7, an arm cylinder 8, and a bucket cylinder 9, respectively.

[0017] The cabin 10 is a control room in which an operator (worker) rides, and is mounted on the front left side of the upper rotating body 3.

[0018] The shovel 100 can communicate with the management device 300 via a predetermined communication network NW, including, for example, a mobile communication network ending at a base station, a satellite communication network using a communication satellite in the sky, the Internet, etc.

[0019] Moreover, the management device 300 of this embodiment acquires from the shovel 100 operation data when the prescribed operation is performed.

[0020] The prescribed motion is a motion that transitions from a predetermined first prescribed posture to a predetermined second prescribed posture. Therefore, the prescribed motion is a motion that starts from the first prescribed posture and ends when the second prescribed posture is reached. The first prescribed posture and the second prescribed posture may be different postures or may be the same posture. In other words, the prescribed motion may be a motion that changes posture from one prescribed posture to another prescribed posture, or a motion that performs a predetermined motion from one prescribed posture and then returns to the one prescribed posture.

[0021] The operation data includes various types of detection information output from a state detection device S1 described later, setting condition information indicating various setting conditions set in the shovel 100, and a model number for identifying the shovel 100. The detection information includes, for example, the movement trajectories of the operating elements such as the lower traveling structure 1, the upper rotating structure 3, the boom 4, the arm 5, and the bucket 6 during work.

[0022] When the shovel 100 acquires operation data while performing a prescribed operation, the shovel 100 transmits (uploads) the acquired operation data to the management device 300.

[0023] In the management system SYS, when the management device 300 receives operation data during a prescribed operation, it calculates the abnormality degree of the shovel 100 based on the operation data. Then, the management device 300 determines the timing (time) for causing the shovel 100 to next perform the prescribed operation based on the relationship with the abnormality degrees calculated in the past, and notifies the shovel 100 of the determined time.

[0024] 1, the management system SYS includes one shovel 100, but is not limited to this. The management system SYS may include any number of shovels 100, and all shovels 100 capable of communicating with the management device 300 may be included in the management system SYS.

[0025] Moreover, the management device 300 of this embodiment is an information processing device installed at a location geographically separated from the shovel 100. The management device 300 is, for example, installed in a management center or the like provided outside the work site where the shovel 100 works, and is a server device mainly composed of one or a plurality of server computers or the like. In this case, the server device may be a company server operated by the business operator who operates the management system SYS or an associated business operator related to the business operator, or may be a cloud server.

[0026] The support device 400 of the present embodiment may be, for example, a portable terminal device such as a smartphone or a tablet. When information including, for example, a start date of maintenance of the shovel 100 and a completion date of the maintenance is input, the support device 400 may transmit the input information to the management device 300.

[0027] Next, the management system SYS of this embodiment will be further described with reference to Fig. 2. Fig. 2 is a configuration diagram showing an example of a management system for an excavator.

[0028] In the figure, mechanical power lines are indicated by double lines, high-pressure hydraulic lines are indicated by thick solid lines, pilot lines are indicated by dashed lines, and electrical drive and control lines are indicated by thin solid lines.

[0029] The hydraulic drive system that hydraulically drives the hydraulic actuators of the excavator 100 of this embodiment includes the engine 11, the main pump 14, a regulator 14a, and a control valve 17. The hydraulic drive system of the excavator 100 also includes hydraulic actuators such as the traveling hydraulic motors 1A, 1B, the swing hydraulic motor 2A, the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9 that hydraulically drive the lower traveling body 1, the upper rotating body 3, the boom 4, the arm 5, and the bucket 6, respectively, as described above.

[0030] The engine 11 is a main power source in the hydraulic drive system, and is mounted, for example, on the rear of the upper rotating body 3. Specifically, the engine 11 rotates at a constant speed at a preset target rotation speed under the control of an engine control device (ECU: Engine Control Unit) 74, which will be described later, and drives the main pump 14 and the pilot pump 15. The engine 11 is, for example, a diesel engine that uses diesel as fuel.

[0031] The regulator 14a controls the discharge amount of the main pump 14. For example, the regulator 14a adjusts the angle (tilt angle) of the swash plate of the main pump 14 in response to a control command from the controller 30.

[0032] The main pump 14 is mounted on the rear of the upper rotating body 3, for example, like the engine 11, and supplies hydraulic oil to the control valve 17 through the high-pressure hydraulic line 16. The main pump 14 is driven by the engine 11 as described above. The main pump 14 is, for example, a variable displacement hydraulic pump, and as described above, under the control of the controller 30, the tilt angle of the swash plate is adjusted by the regulator 14a to adjust the stroke length of the piston, thereby controlling the discharge flow rate (discharge pressure).

[0033] The control valve 17 is a hydraulic control device mounted, for example, at the center of the upper rotating body 3, and controls the hydraulic drive system in response to an operator's operation of the operating device 26. As described above, the control valve 17 is connected to the main pump 14 via the high-pressure hydraulic line 16, and selectively supplies hydraulic oil supplied from the main pump 14 to the hydraulic actuators (travel hydraulic motors 1A, 1B, swing hydraulic motor 2A, boom cylinder 7, arm cylinder 8, and bucket cylinder 9) in response to the operating state of the operating device 26.

[0034] Specifically, the control valve 17 includes a plurality of control valves that control the flow rate and flow direction of the hydraulic oil supplied from the main pump 14 to each of the hydraulic actuators. For example, the control valve 17 includes a control valve corresponding to the boom 4 (boom cylinder 7). Also, for example, the control valve 17 includes a control valve corresponding to the arm 5 (arm cylinder 8).

[0035] Also, for example, the control valve 17 includes a control valve corresponding to the bucket 6 (bucket cylinder 9). Also, for example, the control valve 17 includes a control valve corresponding to the upper rotating body 3 (swing hydraulic motor 2A). Also, for example, the control valve 17 includes a right travel control valve and a left travel control valve corresponding to the right crawler and the left crawler of the lower traveling body 1, respectively.

[0036] The operating system of the shovel 100 according to this embodiment includes a pilot pump 15, an operating device 26, and an operating valve 31.

[0037] The pilot pump 15 is mounted, for example, on the rear of the upper rotating body 3, and supplies pilot pressure to the operating device 26 and the operating valve 31 via a pilot line 25. The pilot pump 15 is, for example, a fixed displacement hydraulic pump, and is driven by the engine 11 as described above.

[0038] The operation device 26 is provided near the cockpit of the cabin 10, and is an operation input means for the operator to operate various operating elements (lower traveling body 1, upper rotating body 3, boom 4, arm 5, bucket 6, etc.). In other words, the operation device 26 is an operation input means for the operator to operate the hydraulic actuators that drive the respective operating elements (i.e., traveling hydraulic motors 1A, 1B, swing hydraulic motor 2A, boom cylinder 7, arm cylinder 8, bucket cylinder 9, etc.). The operation device 26 has secondary pilot lines connected to the control valves 17, respectively.

[0039] As a result, a pilot pressure according to the operation states of the lower traveling body 1, the upper rotating body 3, the boom 4, the arm 5, the bucket 6, etc. in the operation device 26 can be input to the control valve 17. Therefore, the control valve 17 can drive each hydraulic actuator according to the operation state of the operation device 26.

[0040] The operating valve 31 adjusts the flow path area of ​​the pilot line 25 in response to a control command (e.g., a control current) from the controller 30. In this way, the operating valve 31 can output a pilot pressure corresponding to the control command to the secondary pilot line using the primary pilot pressure supplied from the pilot pump 15 as the source pressure.

[0041] The operating valve 31 has a secondary port connected to the left and right pilot ports of the control valves corresponding to the respective hydraulic actuators of the control valve 17, and applies pilot pressure to the pilot ports of the control valves in response to a control command from the controller 30. As a result, even when the operating device 26 is not being operated by the operator, the controller 30 can supply hydraulic oil discharged from the pilot pump 15 to the pilot ports of the corresponding control valves in the control valve 17 via the operating valve 31 to operate the hydraulic actuators.

[0042] In addition to the operation valve 31, an electromagnetic relief valve may be provided to relieve excess hydraulic pressure generated in the hydraulic actuator to a hydraulic oil tank. This makes it possible to actively suppress the operation of the hydraulic actuator when, for example, the amount of operation of the operation device 26 by the operator is excessive. For example, an electromagnetic relief valve may be provided to relieve excess pressure in the bottom side oil chamber and rod side oil chamber of each of the boom cylinder 7, arm cylinder 8, and bucket cylinder 9 to the hydraulic oil tank.

[0043] The control system of the shovel 100 in this embodiment includes a controller 30, an ECU 74, a discharge pressure sensor 14b, an operating pressure sensor 15a, a display device 40, an input device 42, an imaging device 80, a state detection device S1, and a communication device T1.

[0044] The controller 30 performs drive control of the shovel 100. The functions of the controller 30 may be realized by any hardware, software, or a combination thereof. For example, the controller 30 is mainly configured with a computer including a processor such as a CPU (Central Processing Unit), a memory device such as a RAM (Random Access Memory), a non-volatile auxiliary storage device such as a ROM (Read Only Memory), and various interface devices for input and output. The controller 30 realizes various functions by, for example, executing various programs installed in the auxiliary storage device on the CPU.

[0045] For example, the controller 30 sets a target rotation speed based on a work mode, etc., that is set in advance by a predetermined operation by an operator or the like, and outputs a control command to the ECU 74, thereby performing drive control to rotate the engine 11 at a constant speed via the ECU 74.

[0046] Furthermore, for example, the controller 30 outputs a control command to the regulator 14a as necessary to change the discharge amount of the main pump 14, thereby performing so-called total horsepower control or negative control.

[0047] Furthermore, for example, the controller 30 may have a function (hereinafter, "upload function") of uploading various information related to the shovel 100 to the management device 300. Specifically, the controller 30 may transmit (upload) work pattern record information and environmental condition record information during a predetermined type of work by the shovel 100 to the management device 300 via the communication device T1.

[0048] The controller 30 includes an information transmission unit 301 as a functional unit relating to the upload function, which is realized by executing, on a CPU, one or more programs installed in an auxiliary storage device or the like, for example.

[0049] Also, for example, the controller 30 performs control related to a machine guidance function that guides (guides) the manual operation of the shovel 100 by the operator through the operation device 26. Also, the controller 30 may perform control related to a machine control function that automatically assists the manual operation of the shovel 100 by the operator through the operation device 26.

[0050] The controller 30 includes an information collection unit 302, a machine guidance unit 303, and a display control unit 304 as functional units related to machine guidance functions and machine control functions, which are realized, for example, by executing one or more programs installed on an auxiliary storage device or the like on a CPU.

[0051] Note that some of the functions of the controller 30 may be realized by another controller (control device). That is, the functions of the controller 30 may be realized in a distributed manner by a plurality of controllers. For example, the above-mentioned machine guidance function and machine control function may be realized by a dedicated controller (control device).

[0052] The ECU 74 controls various actuators (e.g., a fuel injection device, etc.) of the engine 11 in response to a control command from the controller 30, and rotates the engine 11 at a constant speed (constant speed control) at a set target speed (set speed). At this time, the ECU 74 performs the constant speed control of the engine 11 based on the speed of the engine 11 detected by the engine speed sensor 11a.

[0053] The discharge pressure sensor 14b detects the discharge pressure of the main pump 14. A detection signal corresponding to the discharge pressure detected by the discharge pressure sensor 14b is input to the controller 30.

[0054] As described above, the operating pressure sensor 15a detects the secondary pilot pressure of the operating device 26, that is, the pilot pressure corresponding to the operating state of each operating element (hydraulic actuator) in the operating device 26. A detection signal of the pilot pressure detected by the operating pressure sensor 15a, which corresponds to the operating state of the lower traveling body 1, the upper rotating body 3, the boom 4, the arm 5, the bucket 6, etc. in the operating device 26, is input to the controller 30.

[0055] The display device 40 is connected to the controller 30, and is provided at a position that is easily visible to an operator seated in the cabin 10 under the control of the controller 30, and displays various information images. The display device 40 is, for example, a liquid crystal display or an organic EL (Electroluminescence) display.

[0056] The input device 42 is provided within reach of an operator seated in the cabin 10, accepts various operations by the operator, and outputs signals corresponding to the contents of the operations. For example, the input device 42 is integrated with the display device 40.

[0057] Furthermore, the input device 42 of this embodiment includes a switch 42a that is operated when starting maintenance of the shovel 100, and a switch 42b that is operated when the maintenance is completed. The switch 42a is an example of a maintenance start switch, and is operated by a worker or the like who performs maintenance on the shovel 100. The switch 42b is an example of a maintenance completion switch, and is operated by a worker or the like who has performed maintenance on the shovel 100.

[0058] Note that the switch 42a and the switch 42b in this embodiment may be displayed, for example, on a display of the support device 400. In this case, the user of the support device 400 may operate the switch 42a and the switch 42b.

[0059] The shovel 100 of the present embodiment may transmit the start date and completion date of maintenance to the management device 300, for example, when the switch 42a and the switch 42b are operated.

[0060] Furthermore, if it is determined from the image captured by the imaging device 80 that a person is present within a predetermined range from the shovel 100 before the actuator operates, the actuator may be disabled or put into a slow-speed state even if the operator operates the control lever. Specifically, if it is determined that a person is present within a predetermined range from the shovel 100, the actuator can be disabled by locking a gate lock valve (not shown). In the case of an electric control lever, the actuator can be disabled by disabling the signal from the controller 30 to the operation control valve.

[0061] The same is true when using another type of operating lever, provided that an operating control valve is used which outputs a pilot pressure corresponding to a control command from the controller 30 and applies the pilot pressure to the pilot port of the corresponding control valve in the control valve. When it is desired to operate the actuator at a very slow speed, the actuator can be put into a very slow state by reducing the signal from the controller 30 to the operating control valve.

[0062] In this manner, in the shovel 100 of this embodiment, when it is determined that a detected object is present within a predetermined range, the actuator is not driven even if the operating device 26 is operated, or the actuator is driven at a slow speed with an output smaller than the input to the operating device 26.

[0063] Furthermore, when it is determined that a person is present within a predetermined range from the shovel 100 while the operator is operating the operation device 26 (operation lever), the operation of the actuator may be stopped or slowed down regardless of the operation of the operator. Specifically, when it is determined that a person is present within a predetermined range from the shovel 100, the actuator is stopped by setting the gate lock valve to a locked state.

[0064] When using an operation control valve that outputs a pilot pressure corresponding to a control command from the controller 30 and applies the pilot pressure to a pilot port of a corresponding control valve in the control valve, the actuator can be made inoperable by invalidating a signal from the controller 30 to the operation control valve or outputting a deceleration command. Also, if the detected object is a truck, stop control is not necessary.

[0065] The actuators are controlled to avoid the detected tracks. In this manner, the actuators are controlled based on easy recognition of the type of object detected.

[0066] Furthermore, the controller 30 stores the location, time, and operation details (traveling, turning, etc.) when it is determined that a person is present within a predetermined range from the shovel. Here, when the controller 30 is in the ON state, if a worker approaches the shovel to perform maintenance, the controller 30 determines that a person is present. However, this approach is for the purpose of performing maintenance based on normal work.

[0067] Therefore, when the worker operates the switch 42a, the controller 30 determines that the approach of the worker after the operation is an approach for performing maintenance, and can store a record of the determination of human detection (location, date and time, operation content, etc.) and a record of the approach during maintenance in association with each other. In other words, when the controller 30 receives an operation of the switch 42a while the controller 30 is in the ON state, the controller 30 determines that the approach of a person within the predetermined range is an approach for maintenance. Then, the controller 30 stores information indicating the record of the detection of a person approaching within the predetermined range and information indicating the approach of a person for maintenance in association with each other in a memory device or the like. The information indicating the record of the detection of a person approaching within the predetermined range includes the location, date and time at which the approach of the person was detected, etc.

[0068] The controller 30 of the shovel 100 transmits to the management device 300 a record indicating that human detection was determined (location, date and time, operation content, etc.) and a record indicating that the human detection was due to approach during maintenance in a correlated state. Thereafter, when the worker operates the switch 42b at the end of maintenance, the controller 30 determines that the maintenance is completed, and the correlation between the record indicating that human detection was determined and the record indicating that the human detection was due to approach during maintenance is also terminated. As a result, even if the management device 300 has a record indicating that human detection was determined (location, date and time, etc.), it is possible to understand that the cause of the determination of human detection was due to approach for maintenance.

[0069] The input device 42 may be provided separately from the display device 40. The input device 42 includes a touch panel mounted on the display of the display device 40, a knob switch provided at the tip of a lever included in the operation device 26, and a button switch, lever, toggle, etc. installed around the display device 40. A signal corresponding to the operation content on the input device 42 is taken into the controller 30.

[0070] The imaging device 80 captures images of the periphery of the shovel 100. The imaging device 80 includes a camera 80F that captures an image in front of the shovel 100, a camera 80L that captures an image to the left of the shovel 100, a camera 80R that captures an image to the right of the shovel 100, and a camera 80B that captures an image behind the shovel 100.

[0071] Camera 80F is attached, for example, to the ceiling of cabin 10, i.e., inside cabin 10. Camera 80F may also be attached to the outside of cabin 10, such as the roof of cabin 10 or the side of boom 4. Camera 80L is attached to the left end of the upper surface of upper rotating body 3, camera 80R is attached to the right end of the upper surface of upper rotating body 3, and camera 80B is attached to the rear end of the upper surface of upper rotating body 3.

[0072] The imaging devices 80 (cameras 80F, 80B, 80L, 80R) are, for example, monocular wide-angle cameras having a very wide angle of view. The imaging devices 80 may also be stereo cameras or distance imaging cameras. Images of the periphery of the shovel 100 captured by the imaging devices 80 (hereinafter, "peripheral images") are captured by the controller 30.

[0073] The state detection device S1 outputs detection information relating to various states of the shovel 100. The detection information output from the state detection device S1 is input to the controller 30.

[0074] For example, the state detection device S1 detects the posture and operation states of the attachments. Specifically, the state detection device S1 may detect the elevation and depression angles of the boom 4, the arm 5, and the bucket 6 (hereinafter, the "boom angle," the "arm angle," and the "bucket angle," respectively).

[0075] That is, the state detection device S1 may include a boom angle sensor, an arm angle sensor, and a bucket angle sensor that detect the boom angle, the arm angle, and the bucket angle, respectively.

[0076] Furthermore, the state detection device S1 may detect the acceleration, angular acceleration, etc. of the boom 4, the arm 5, and the bucket 6. In this case, the state detection device S1 may include, for example, a rotary encoder, an acceleration sensor, an angular acceleration sensor, a six-axis sensor, an IMU (Inertial Measurement Unit), etc., which are attached to each of the boom 4, the arm 5, and the bucket 6. Furthermore, the state detection device S1 may include cylinder sensors which detect the cylinder position, speed, acceleration, etc. of the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9 which drive the boom 4, the arm 5, and the bucket 6, respectively.

[0077] Furthermore, for example, the state detection device S1 detects the attitude state of the machine body, that is, the lower running body 1 and the upper rotating body 3. Specifically, the state detection device S1 may detect the inclination state of the machine body with respect to a horizontal plane. In this case, the state detection device S1 may include, for example, an inclination sensor attached to the upper rotating body 3, which detects the inclination angles of the upper rotating body 3 about two axes in the front-rear and left-right directions (hereinafter, "front-rear inclination angle" and "left-right inclination angle").

[0078] Furthermore, for example, the state detection device S1 detects the rotation state of the upper rotating body 3. Specifically, the state detection device S1 detects the rotation angular velocity and rotation angle of the upper rotating body 3. In this case, the state detection device S1 may include, for example, a gyro sensor, a resolver, a rotary encoder, and the like attached to the upper rotating body 3. In other words, the state detection device S1 may include a rotation angle sensor that detects the rotation angle, etc., of the upper rotating body 3.

[0079] Furthermore, for example, the state detection device S1 detects the acting state of a force acting on the excavator 100 through an attachment. Specifically, the state detection device S1 may detect the operating pressure (cylinder pressure) of a hydraulic actuator. In this case, the state detection device S1 may include pressure sensors that detect the pressures of the rod-side oil chamber and the bottom-side oil chamber of each of the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9.

[0080] Also, for example, the state detection device S1 may include a sensor that detects the displacement of a spool of a control valve in the control valve 17. Specifically, the state detection device S1 may include a boom spool displacement sensor that detects the displacement of a boom spool. Also, the state detection device S1 may include an arm spool displacement sensor that detects the displacement of an arm spool.

[0081] The state detection device S1 may also include a bucket spool displacement sensor that detects the displacement of the bucket spool. The state detection device S1 may also include a swing spool displacement sensor that detects the displacement of the swing spool. The state detection device S1 may also include a right travel spool displacement sensor and a left travel spool displacement sensor that detect the displacement of the right travel spool and the left travel spool that respectively configure the right travel control valve and the left travel control valve.

[0082] Furthermore, for example, the state detection device S1 detects the position of the shovel 100 and the orientation of the upper rotating body 3. In this case, the state detection device S1 may include, for example, a Global Navigation Satellite System (GNSS) compass, a GNSS sensor, an orientation sensor, and the like attached to the upper rotating body 3.

[0083] The communication device T1 communicates with external devices through the communication network NW. The communication device T1 is, for example, a mobile communication module compatible with mobile communication standards such as LTE (Long Term Evolution), 4G (4th Generation), and 5G (5th Generation), or a satellite communication module for connecting to a satellite communication network.

[0084] The information transmitting unit 301 transmits operation data during a prescribed operation of the shovel 100 to the management device 300 through the communication device T1. Note that the information transmitting unit 301 may transmit operation data to the management device 300 during operations other than the prescribed operation.

[0085] Furthermore, the operation data transmitted by the information transmission unit 301 may include, for example, image data of an image of the surroundings of the shovel 100 captured by the imaging device 80.

[0086] In addition, the information transmission unit 301 may, for example, sequentially determine whether or not a prescribed operation is being performed, and when it determines that the prescribed operation is being performed, record the operating data for the period during which the prescribed operation is being performed in an internal memory or the like in association with the type of the prescribed operation.

[0087] At this time, the operation data may include date and time information regarding the start and end of the target type of work, and location information of the excavator 100 during the work. At this time, the date and time information may be acquired, for example, from a predetermined clock means (for example, an RTC (Real Time Clock)) inside the controller 30. Then, when the specified operation is completed, the information transmission unit 301 transmits the recorded operation data to the management device 300 via the communication device T1.

[0088] The operation data may include detection information detected by other sensors mounted on the shovel 100 instead of or in addition to the imaging device 80. For example, the shovel 100 may be equipped with other sensors such as a millimeter wave radar, a LIDAR (Light Detecting and Ranging), and the environmental condition record information may include detection information from these distance sensors.

[0089] The operation data may also include weather information. The weather information may include, for example, information detected by a raindrop sensor, an illuminance sensor, or the like that may be included in the status detection device S1.

[0090] Furthermore, the information transmitting unit 301 may successively upload the detection information of the state detecting device S1 and the peripheral images of the shovel 100 captured by the imaging device 80 to the management device 300 via the communication device T1. In this case, the management device 300 may extract the operation data during the period of the specified operation from the information uploaded from the shovel 100.

[0091] The information collecting unit 302 acquires operation data during the prescribed operation. Specifically, the information collecting unit 302 acquires operation data including detection information output from the state detection device S1 and the type of the prescribed operation determined from the detection information.

[0092] Furthermore, the information collecting unit 302 acquires information indicating the date and time when the operation data was acquired, information indicating the type of the prescribed operation, and a machine identification number for identifying the shovel 100 that performed the prescribed operation. Furthermore, the information collecting unit 302 may acquire the operation data, the information indicating the date and time, and the information indicating the type of the prescribed operation in association with each other as operation information. The information transmitting unit 301 may transmit the operation information acquired by the information collecting unit 302 to the management device 300.

[0093] Furthermore, when performing a predetermined type of work, the information collecting unit 302 of the embodiment acquires a work pattern (optimum work pattern) that is optimal for the current environmental conditions related to a predetermined target index from the management device 300. For example, in response to a predetermined operation (hereinafter, "acquisition request operation") performed by the operator on the input device 42, the information collecting unit 302 transmits a signal (acquisition request signal) requesting acquisition of a work pattern including information related to the current environmental conditions of the shovel 100 (hereinafter, "current environmental condition information") to the management device 300 via the communication device T1.

[0094] This allows the management device 300 to provide the shovel 100 with an optimal work pattern that matches the current environmental conditions of the shovel 100. The current environmental condition information includes, for example, the latest image of the surroundings of the shovel 100 captured by the imaging device 80.

[0095] The machine guidance unit 303 controls the machine guidance function and the machine control function. In other words, the machine guidance unit 303 supports the operation of various operation elements (the lower traveling body 1, the upper rotating body 3, and the attachments including the boom 4, the arm 5, and the bucket 6) by the operator through the operation device 26.

[0096] For example, when an operator operates the arm 5 via the operating device 26, the machine guidance unit 303 may automatically operate at least one of the boom 4 and the bucket 6 so that a predetermined target design surface (hereinafter simply referred to as the "design surface") coincides with the tip of the bucket 6 (e.g., the tip or back).

[0097] Additionally, the machine guidance unit 303 may automatically operate the arm 5 regardless of the operation state of the operation device 26 that operates the arm 5. In other words, the machine guidance unit 303 may cause the attachment to perform a predefined operation when triggered by the operation of the operation device 26 by the operator.

[0098] More specifically, the machine guidance unit 303 acquires various information from the state detection device S1, the imaging device 80, the communication device T1, the input device 42, etc. The machine guidance unit 303 also calculates, for example, the distance between the bucket 6 and the design surface based on the acquired information. The machine guidance unit 303 then appropriately controls the operation valve 31 in accordance with the calculated distance between the bucket 6 and the design surface, etc., and can automatically operate each hydraulic actuator by individually and automatically adjusting the pilot pressure acting on the control valve corresponding to the hydraulic actuator.

[0099] The operation valve 31 includes, for example, a boom proportional valve corresponding to the boom 4 (boom cylinder 7). The operation valve 31 also includes, for example, an arm proportional valve corresponding to the arm 5 (arm cylinder 8). The operation valve 31 also includes, for example, a bucket proportional valve corresponding to the bucket 6 (bucket cylinder 9). The operation valve 31 also includes, for example, a swing proportional valve corresponding to the upper swing body 3 (swing hydraulic motor 2A). The operation valve 31 also includes, for example, a right traveling proportional valve and a left traveling proportional valve corresponding to the right crawler and the left crawler of the lower traveling body 1, respectively.

[0100] The machine guidance unit 303 may automatically extend and retract at least one of the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9 in response to an opening and closing operation of the arm 5 relative to the operating device 26, for example, to assist in excavation work.

[0101] The excavation work is a work of excavating the ground along a design surface with the tip of the bucket 6. For example, when an operator manually operates the operation device 26 in the closing direction of the arm 5 (hereinafter, "arm closing operation"), the machine guidance unit 303 automatically extends and retracts at least one of the boom cylinder 7 and the bucket cylinder 9.

[0102] Furthermore, the machine guidance unit 303 may automatically extend and retract at least one of the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9 to assist in finishing work on a slope or a horizontal surface, for example. The finishing work includes, for example, pulling the bucket 6 toward you along the design surface while pressing the back surface of the bucket 6 against the ground.

[0103] For example, when an operator manually performs an arm closing operation on the operation device 26, the machine guidance unit 303 automatically extends and retracts at least one of the boom cylinder 7 and the bucket cylinder 9. This makes it possible to move the bucket 6 along a design surface, which is a slope (embankment) or horizontal surface after completion, while pressing the back surface of the bucket 6 against the slope (embankment) or horizontal surface before completion with a predetermined pressing force.

[0104] Furthermore, the machine guidance unit 303 may automatically rotate the swing hydraulic motor 2A to make the upper swing body 3 face the design surface. In this case, the machine guidance unit 303 may make the upper swing body 3 face the design surface by operating a predetermined switch included in the input device 42. Furthermore, the machine guidance unit 303 may make the upper swing body 3 face the design surface and start the machine control function by simply operating a predetermined switch.

[0105] Furthermore, for example, when a predetermined type of work (e.g., excavation work, loading work, finishing work, etc.) is being performed, the machine guidance unit 303 controls the operation of at least a portion of the attachment, upper rotating body 3, and lower running body 1 to match the work pattern (optimum work pattern) acquired by the information collection unit 302 in accordance with the operation of the operating device 26 by the operator.

[0106] This allows the operator, regardless of his or her level of proficiency in operating the shovel 100, to adjust the operation of the shovel 100 to an optimal work pattern for the current environmental conditions of the shovel 100, which is output from the management device 300 so as to relatively increase a predetermined target indicator, for example, the evaluation of work speed.

[0107] Furthermore, the machine guidance unit 303 may control the operation of the shovel 100 based on the optimal work pattern, while causing the display device 40 to display the operation of the shovel 100 corresponding to the optimal work pattern for the operator. For example, when the machine guidance unit 303 controls the operation of the shovel 100 based on the optimal work pattern, it causes the display device 40 to display a video of a simulation result corresponding to the optimal work pattern. This allows the operator to proceed with the work while checking the content of the actual work pattern on the video on the display device 40.

[0108] The display control unit 304 controls the display on the display device 40 of the shovel 100.

[0109] The management device 300 of this embodiment has a storage unit 310 and a diagnosis unit 320. The storage unit 310 has an operation information storage unit 330. The operation information storage unit 330 stores operation information received from the shovel 100. The operation information storage unit 330 will be described in detail later.

[0110] The diagnosing unit 320 refers to the operation information and diagnoses the condition of the shovel 100 that transmitted the operation information. Specifically, the diagnosing unit 320 calculates the abnormality degree of the shovel 100 based on the operation information, determines the next time when the shovel 100 will perform a prescribed operation according to a change in the abnormality degree, and notifies the shovel 100 of this. The time to perform the prescribed operation is, in other words, the time to diagnose the condition of the shovel 100. The details of the diagnosing unit 320 will be described later.

[0111] The management device 300 of this embodiment will be further described below. Fig. 3 is a diagram showing an example of the hardware configuration of the management device.

[0112] The management device 300 of this embodiment is a computer including an input device 311, an output device 312, a drive device 313, an auxiliary storage device 314, a memory device 315, an arithmetic processing device 316, and an interface device 317, all of which are interconnected via a bus B.

[0113] The input device 311 is a device for inputting various types of information and is realized by, for example, a keyboard, a pointing device, etc. The output device 312 is for outputting various types of information and is realized by, for example, a display, etc. The interface device 317 includes a LAN card, etc., and is used for connecting to a network.

[0114] The programs that realize the information collecting unit 350, data range determining unit 360, learning unit 370, and anomaly determining unit 380 of the management device 300 are at least a part of various programs that control the management device 300. The programs are provided, for example, by distribution of a storage medium 318 or by downloading from a network. The storage medium 318 that records the programs can be of various types, including storage media that optically, electrically, or magnetically record information, such as a CD-ROM, a flexible disk, or a magneto-optical disk, and semiconductor memories that electrically record information, such as a ROM or a flash memory.

[0115] Furthermore, when a storage medium 318 on which the program is recorded is set in the drive device 313, the program is installed in the auxiliary storage device 314 from the storage medium 318 via the drive device 313. Programs downloaded from the network are installed in the auxiliary storage device 314 via the interface device 317.

[0116] The auxiliary storage device 314 realizes each storage unit and the like of the management device 300, and stores the programs installed in the management device 300 as well as various files, data, and the like required by the management device 300. The memory device 315 reads out and stores the programs from the auxiliary storage device 314 when the management device 300 is started. The arithmetic processing device 316 realizes various processes as described below in accordance with the programs stored in the memory device 315.

[0117] Next, the motion information storage unit 330 of this embodiment will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of the motion information storage unit.

[0118] 4 is a diagram illustrating an example of the operation information storage unit. The operation information stored in the operation information storage unit 330 of this embodiment includes, as information items, a machine identification number, acquisition date and time, operation data, and the presence or absence of repair work, and the item "machine identification number" is associated with other items.

[0119] The operation information in this embodiment is information including values ​​of the items “machine identification number”, “acquisition date and time”, “operation data”, and “type of prescribed operation”. The operation information in this embodiment is information transmitted by the information transmitting unit 301 of the shovel 100 via the communication device T1, received by the information collecting unit 350, and stored in the operation information storage unit 330.

[0120] The value of the item "Acquisition Date and Time" indicates the date and time when the operation data was acquired. The value of the item "Operation Data" is information including the work pattern result information and the environmental condition result information transmitted from the shovel 100. In other words, the value of the item "Operation Data" is information including various detection information output from the status detection device S1, and is information indicating the operation of the shovel 100.

[0121] The value of the item “type of prescribed operation” indicates the type of prescribed operation being performed by the shovel 100. Specifically, the value of the item “type of prescribed operation” indicates the type of prescribed operation determined based on the operation data acquired from the shovel 100.

[0122] Note that the information items included in the operation information stored in the operation information storage unit 330 are not limited to the example shown in Fig. 4. The operation information may include items other than the items shown in Fig. 4. Specifically, for example, the operation information may include an abnormality degree calculated in the processing of the diagnosis unit 320 described later.

[0123] Next, functions of the management device 300 of this embodiment will be described with reference to Fig. 5. Fig. 5 is a diagram illustrating the functional configuration of the management device.

[0124] The management device 300 of this embodiment includes a storage unit 310 and a diagnosis unit 320 , and the diagnosis unit 320 includes an information acquisition unit 321 , a feature amount calculation unit 322 , an abnormality degree calculation unit 323 , a judgment unit 324 , a diagnosis timing change unit 325 , and an output unit 326 .

[0125] The information acquisition unit 321 collects information from the shovel 100. Specifically, the information acquisition unit 321 collects operation information acquired by the shovel 100 while the shovel 100 is performing a specified operation.

[0126] The feature amount calculation unit 322 calculates feature amounts of operation data included in the operation information collected by the information acquisition unit 321. The feature amounts in this embodiment refer to, for example, various statistics that characterize the shapes of waveforms indicating changes in various physical quantities included in the operation data.

[0127] The abnormality degree calculation unit 323 calculates the abnormality degree by using the feature amount calculated by the feature amount calculation unit 322. The abnormality degree is referred to when determining whether or not the excavator 100 has a malfunction (whether or not repair is required).

[0128] The abnormality degree calculation unit 323 in this embodiment may function as a learning unit having an abnormality determination model that outputs the abnormality degree of the shovel 100.

[0129] In this case, the abnormality degree calculation unit 323 uses a dataset that outputs normal operation data of the shovel 100 and information indicating that there is no abnormality, to generate an abnormality determination model that associates the input operation data with the abnormality degree of the shovel 100.

[0130] Then, when the operation information is acquired by the information acquisition unit 321, the abnormality degree calculation unit 323 may input the operation data included in the operation information to the abnormality determination model and acquire the abnormality degree output from the abnormality determination model. The abnormality degree in this embodiment is an index value indicating the presence or absence of an abnormality in the shovel 100.

[0131] The determination unit 324 determines whether the degree of abnormality acquired by the abnormality degree calculation unit 323 exceeds a predetermined threshold. In this embodiment, when the degree of abnormality exceeds the predetermined threshold, it is determined that an abnormality exists.

[0132] The diagnosis timing changing unit 325 changes the timing for causing the shovel 100 to execute the prescribed operation according to a change in the degree of abnormality when the degree of abnormality is determined by the determining unit 324 not to exceed a predetermined threshold value.

[0133] The time when the prescribed operation of the shovel 100 is executed is the time when diagnosis of the operation of the shovel 100 is performed. In other words, the diagnosis time changing unit 325 changes the time when diagnosis of the operation of the shovel 100 is performed according to the degree of abnormality of the shovel 100. The details of the processing of the diagnosis time changing unit 325 will be described later.

[0134] The output unit 326 outputs various notifications to the display device 40 of the shovel 100. In addition, the output unit 326 may output various notifications to the support device 400 of the shovel 100, an output device (display) of the management device 300, or the like.

[0135] Next, the processing of the diagnosis unit 320 of this embodiment will be described with reference to Fig. 6 and Fig. 7. Fig. 6 is a first flowchart illustrating the processing of the diagnosis unit.

[0136] The diagnosis unit 320 acquires operation information including operation data from the shovel 100 via the information acquisition unit 321 (step S601).

[0137] Next, the diagnostic unit 320 causes the feature amount calculation unit 322 to calculate the feature amount of the acquired operational data (step S602).

[0138] Next, the diagnosis unit 320 causes the abnormality degree calculation unit 323 to calculate the abnormality degree of the shovel 100 (step S603). Note that when the abnormality degree calculation unit 323 acquires the abnormality degree using an abnormality determination model, it is not necessary to calculate the feature amount.

[0139] Next, the diagnosis unit 320 causes the determination unit 324 to determine whether or not the degree of abnormality exceeds a predetermined threshold value (step S604).

[0140] In step S604, if the degree of abnormality is equal to or greater than the predetermined threshold, the diagnosis unit 320 causes the output unit 326 to notify the shovel 100 of the detection of an abnormality in the shovel 100 (step S605), and ends the process. Specifically, the output unit 326 causes the display device 40 of the shovel 100 and the support device 400 to display a notification indicating that an abnormality in the shovel 100 has been detected.

[0141] In step S605, if the degree of abnormality is less than the predetermined threshold, the diagnosis unit 320 causes the diagnosis timing change unit 325 to change the timing at which the shovel 100 performs the prescribed operation (step S606), and ends the process. The process of step S606 will be described in detail later.

[0142] 7 is a second flowchart for explaining the process of the diagnosis unit 325. FIG. 7 shows details of the process of the diagnosis timing change unit 325 in step S606 in FIG.

[0143] The diagnosis timing change unit 325 of this embodiment compares the degree of abnormality calculated in step S603 with the degree of abnormality calculated using operation information from the last time the shovel 100 performed a specified operation, and calculates the ratio of the two degrees of abnormality (step S701).

[0144] Next, the diagnosis timing changing unit 325 calculates the increase ratio of the currently calculated abnormality degree to the previously calculated abnormality degree (step S702).

[0145] Next, the diagnosis timing change unit 325 specifies the date on which the shovel 100 will next perform the prescribed operation (step S703). The date on which the shovel 100 will next perform the prescribed operation may be the date on which diagnosis of the operation of the shovel 100 will be performed.

[0146] Specifically, the diagnosis timing changing unit 325 may hold, for example, a function or a table indicating the relationship between the rate of increase in the degree of abnormality calculated this time relative to the degree of abnormality calculated previously, and the period until the execution date of the next prescribed operation (the date on which the operation of the shovel 100 is diagnosed). The diagnosis timing changing unit 325 of this embodiment may specify the date for the next prescribed operation diagnosis of the shovel 100 by referring to this function or table.

[0147] The function or table held by the diagnosis timing change unit 325 may be created so that the larger the increase ratio of the abnormality degree, the shorter the period until the execution date of the next diagnosis. Also, this function or table may be such that when the increase ratio of the abnormality degree reaches a certain value or more, the period until the execution date of the next diagnosis is shortened.

[0148] When the diagnosis timing change unit 325 specifies the next prescribed operation diagnosis date for the shovel 100, the diagnosing unit 320 of this embodiment notifies the shovel 100 by the output unit 326 that the timing for diagnosing the operation of the shovel 100 has been changed (step S704), and ends the processing. Note that the notification of the change in timing may be sent to the support device 400.

[0149] The process of the diagnosis timing changing unit 325 of this embodiment will be specifically described below with reference to FIG.

[0150] Fig. 8 is a diagram for explaining the processing of the diagnosis timing change unit. Fig. 8 shows, for example, a case where diagnosis of the operation of the shovel 100 is performed periodically. In Fig. 8, the horizontal axis indicates time and the vertical axis indicates the degree of abnormality. Furthermore, the threshold value Th in Fig. 8 is a threshold value referenced in step S604 in Fig. 6, and is a threshold value for determining whether or not there is an abnormality in the shovel 100.

[0151] In the example of Fig. 8, a prescribed operation diagnosis of the shovel 100 is performed at timings T1, T2, T3, T4, T5, T6, and T7, and the degree of abnormality calculated at each timing is equal to or less than the threshold value Th. The prescribed operation diagnosis refers to a process in which the management device 300 diagnoses the state of the shovel 100 based on the operation data collected during the prescribed operation of the shovel 100. In the following description, the day on which the prescribed operation diagnosis is performed (the day on which the prescribed operation diagnosis process is executed) may be referred to as the prescribed operation diagnosis day.

[0152] Here, the increase ratio of the degree of abnormality calculated at time T2 to the degree of abnormality calculated at time T1 is less than a certain value. Therefore, the period K2 from time T2 to time T3, which is the next prescribed operation diagnosis date, is the same as the period K1 from time T1 to time T2. Note that the period K1 is a period determined in advance. In other words, the period K1 is a period determined in order to periodically perform a prescribed operation diagnosis of the excavator 100.

[0153] In addition, the increase ratio of the degree of abnormality calculated at timing T3 to the degree of abnormality calculated at timing T2 is also less than a certain value, and the increase ratio of the degree of abnormality calculated at timing T4 to the degree of abnormality calculated at timing T3 is also less than a certain value.

[0154] Therefore, the period K3 from timing T3 to timing T4 is the same as the period K2 from timing T2 to timing T3, and the period K4 from timing T4 to timing T5 is the same as the period K3 from timing T3 to timing T4.

[0155] In contrast, the increase ratio of the degree of abnormality calculated at timing T5 to the degree of abnormality calculated at timing T4 is equal to or greater than a certain value.

[0156] Therefore, the diagnosis timing change unit 325 makes the period K5 from the timing T5 to the timing T6, which is the next prescribed operation diagnosis date, shorter than the period K4. In the example of Fig. 8, the period K5 is made shorter than the period K4 by a period Ka. The period Ka is a period shortened from the timing T5 to the timing T6', which is the next prescribed operation diagnosis date, when the increase ratio of the degree of abnormality at the timing T5 is less than a certain value.

[0157] In the example of FIG. 8, it can be seen that the degree of abnormality calculated at timing T6 has further increased compared to the degree of abnormality calculated at timing T5, and is approaching the threshold value Th.

[0158] In this embodiment, when the abnormality degree approaches the threshold value Th in this manner, the output unit 326 may cause a display or the like of the management device 300 to display a notice indicating that the abnormality degree is approaching the threshold value Th.

[0159] In this embodiment, by displaying such a notification on the display or the like of the management device 300, the manager of the shovel 100 can be made aware that a closer inspection of the condition of the shovel 100 is required.

[0160] In the example of Fig. 8, it is assumed that the manager of the shovel 100 closely examines the state of the shovel 100 and takes some kind of action, such as maintenance, based on the degree of abnormality calculated at timing T6. In this way, in the present invention, the diagnosis timing change unit 325 changes the timing of the prescribed operation. Thereafter, the worker determines whether or not some kind of action, such as maintenance, is necessary based on the diagnosis result (degree of abnormality) calculated at the changed timing.

[0161] In this case, the period from time T6 to time T7, which is the next prescribed operation diagnosis date, may be returned to a period determined in advance for periodically performing the prescribed operation diagnosis of the shovel 100.

[0162] 8, the period K6 from the timing T6 to the timing T7, which is the next specified operation diagnosis date, is the same length as the period K1. In other words, the period K6 is longer than the period K5. It can also be seen that the degree of abnormality calculated at the timing T7 is significantly lower than the degree of abnormality calculated at the timing T6, and is sufficiently lower than the threshold value Th.

[0163] In this manner, the diagnosis timing change unit 325 of this embodiment determines the next timing for causing the shovel 100 to perform a specified operation based on the difference between the degree of abnormality calculated using past operation information (operation data) and the degree of abnormality calculated using operation information (operation data) acquired by the information acquisition unit.

[0164] In this manner, in this embodiment, the period from the prescribed operation diagnosis date to the next prescribed operation diagnosis date can be changed based on the operation information collected by the shovel 100 during the prescribed operation. In other words, in this embodiment, the timing of performing the prescribed operation diagnosis can be changed according to the degree of abnormality calculated from the operational data collected by the shovel 100 during the prescribed operation.

[0165] Therefore, according to this embodiment, a diagnosis of the condition of the shovel 100 based on operational data collected during specified operation is periodically notified, and signs of performance degradation or malfunctions based on the operating time of the shovel 100, etc. can be evaluated.

[0166] In addition, according to the present embodiment, since the operation information during the specified operation is acquired, it is possible to acquire highly accurate operation information at a stage where the degree of abnormality has increased. In other words, in the present embodiment, it is possible to acquire detailed operation information at a stage where a sign of performance degradation or a malfunction appears.

[0167] Therefore, according to this embodiment, even in a remote location away from the work site of the shovel 100, the state of the shovel 100 can be grasped, and appropriate measures can be taken for the shovel 100 at the appropriate time.

[0168] Next, a display example of the display device 40 of the shovel 100 of this embodiment will be described with reference to Fig. 9 and Fig. 10. Fig. 9 is a diagram showing an example of a main screen.

[0169] The display device 40 shown in Fig. 9 has an image display unit 41 and an input device 42. The image display unit 41 is a screen on which various images are displayed, and in Fig. 9, a main screen is displayed on the image display unit 41. This main screen is displayed on the display device 40, for example, while the excavator 100 is in operation. The input device 42 includes various menu switches.

[0170] First, a description will be given of the image display unit 41. As shown in Fig. 9, the image display unit 41 includes a date and time display area 41a, a driving mode display area 41b, an attachment display area 41c, a fuel efficiency display area 41d, an engine control state display area 41e, an engine operation time display area 41f, a coolant temperature display area 41g, a remaining fuel amount display area 41h, a rotation speed mode display area 41i, a remaining urea water amount display area 41j, a hydraulic oil temperature display area 41k, an air conditioner operation state display area 41m, an image display area 41n, and a menu display area 41p.

[0171] The travel mode display area 41b, the attachment display area 41c, the engine control state display area 41e, the rotation speed mode display area 41i, and the air conditioner operation state display area 41m are areas that display setting state information, which is information about the setting state of the excavator 100. The fuel consumption display area 41d, the engine operation time display area 41f, the coolant temperature display area 41g, the remaining fuel amount display area 41h, the remaining urea water amount display area 41j, and the hydraulic oil temperature display area 41k are areas that display operating state information, which is information about the operating state of the excavator 100.

[0172] Specifically, the date and time display area 41a is an area for displaying the current date and time. The driving mode display area 41b is an area for displaying the current driving mode. The attachment display area 41c is an area for displaying an image representing the currently attached attachment. The fuel efficiency display area 41d is an area for displaying fuel efficiency information calculated by the controller 30. The fuel efficiency display area 41d includes an average fuel efficiency display area 41d1 for displaying lifetime average fuel efficiency or section average fuel efficiency, and an instantaneous fuel efficiency display area 41d2 for displaying instantaneous fuel efficiency.

[0173] The engine control status display area 41e is an area that displays the control status of the engine 11. The engine operating time display area 41f is an area that displays the accumulated operating time of the engine 11. The coolant temperature display area 41g is an area that displays the current temperature state of the engine coolant. The remaining fuel amount display area 41h is an area that displays the remaining amount of fuel stored in the fuel tank.

[0174] The rotation speed mode display area 41i is an area that displays, by an image, the current rotation speed mode set by the engine rotation speed adjustment dial 75. The urea water remaining amount display area 41j is an area that displays, by an image, the remaining amount of urea water stored in the urea water tank. The hydraulic oil temperature display area 41k is an area that displays the temperature state of the hydraulic oil in the hydraulic oil tank.

[0175] The air conditioner operation status display area 41m includes an air outlet display area 41m1 that displays the current air outlet position, an operation mode display area 41m2 that displays the current operation mode, a temperature display area 41m3 that displays the current set temperature, and an air volume display area 41m4 that displays the current set air volume.

[0176] The image display area 41n is an area for displaying an image captured by the imaging device 80. In the example of Fig. 9, the image display area 41n displays an overhead image FV and a rear image CBT. The overhead image FV is, for example, a virtual viewpoint image generated by the display control unit 304, and is generated based on images captured by each of the rear camera S6B, the left camera S6L, and the right camera S6R.

[0177] Moreover, a shovel figure GE corresponding to the shovel 100 is arranged in the center of the overhead image FV. This is to allow the operator to intuitively grasp the positional relationship between the shovel 100 and objects existing around the shovel 100. The rear image CBT is an image that shows the space behind the shovel 100, and includes an image GC of the counterweight. The rear image CBT is a real viewpoint image generated by the control unit 40a, and is generated based on an image acquired by the rear camera S6B.

[0178] Further, the image display area 41n has a first image display area 41n1 located above and a second image display area 41n2 located below. In the example of Fig. 9, the overhead image FV is arranged in the first image display area 41n1, and the rear image CBT is arranged in the second image display area 41n2. However, the image display area 41n may arrange the overhead image FV in the second image display area 41n2, and the rear image CBT in the first image display area 41n1.

[0179] In addition, although the overhead image FV and the rear image CBT are arranged adjacent to each other vertically in the example of Fig. 9, they may be arranged with a gap therebetween. In addition, although the image display area 41n is a vertically elongated area in the example of Fig. 8, the image display area 41n may be a horizontally elongated area.

[0180] When the image display area 41n is a horizontally long area, the image display area 41n may have an overhead image FV arranged on the left side as the first image display area 41n1 and a rear image CBT arranged on the right side as the second image display area 41n2. In this case, they may be arranged with a gap between them on the left and right, or the positions of the overhead image FV and the rear image CBT may be interchanged.

[0181] Furthermore, in this embodiment, an icon image 41x is displayed in each of the first image display area 41n1 and the second image display area 41n2. The icon image 41x is an image that represents the relative relationship between the position of the imaging device 80 and the orientation of the attachment of the upper rotating body 3.

[0182] The icon image 41x of this embodiment includes an image 41xM of the shovel 100, an image 41xF showing the front of the shovel 100, and an image 41xB showing the rear of the shovel 100. The icon image 41x also includes an image 41xL showing the left side of the shovel 100, an image 41xR showing the right side of the shovel 100, and an image 41xI showing the inside of the cabin 10.

[0183] The images 41xF, 41xB, 41xL, 41xR, and 41xI correspond to a camera S6F that captures an image in front of the shovel 100, a camera S6B that captures an image behind the shovel 100, a camera S6L that captures an image to the left of the shovel 100, and a camera S6R that captures an image to the right of the shovel 100, respectively. In addition, the image 41xI corresponds to a camera inside the cabin 10.

[0184] In this embodiment, when an image associated with a camera is selected in the icon image 41x, image data captured by the camera corresponding to the selected image is displayed in the image display area 41n.

[0185] 9, in the first image display region 41n1, the display manner of the images 41xB, 41xL, and 41xR is different from the display manner of the images 41xF and 41xI. Therefore, it can be seen that the first image display region 41n1 displays an overhead image represented by image data synthesized from image data captured by the cameras 80B, 80L, and 80R corresponding to the images 41xB, 41xL, and 41xR, respectively.

[0186] In addition, in the first image display area 41n1 of this embodiment, a message indicating that the timing for performing the prescribed operation diagnosis has been changed is displayed in the display area 45. The message in the display area 45 is displayed, for example, when a notification is received from the management device 300 in step S704 of FIG.

[0187] In the example of Fig. 9, the message indicates that the timing to perform the prescribed operation diagnosis has been changed and the time when the prescribed operation diagnosis will be performed, but this is not limited to this. In this embodiment, for example, the message may only indicate that the timing to perform the prescribed operation diagnosis has been changed. In this case, when it is time to perform the prescribed operation diagnosis, a separate message may be displayed to instruct the execution of the prescribed operation.

[0188] Furthermore, the display control unit 304 of this embodiment may display a message in the display area 45 when the shovel 100 is idling (not being operated). Furthermore, the display control unit 304 may display a message in the display area 45 when the key is turned off. Furthermore, in this embodiment, for example, the timing for displaying the message in the display area 45 may be set arbitrarily. Specifically, for example, the message may be set to be displayed at regular intervals while the shovel 100 is in operation.

[0189] In this manner, in the present embodiment, the display area 45 is displayed in the first image display area 41n1. Therefore, according to the present embodiment, it is possible to display a message without deteriorating the visibility of the rear image CBT displayed in the second image display area 41n2.

[0190] Furthermore, in this embodiment, the operator of the shovel 100 can be made aware that the timing for performing the prescribed operation diagnosis has been changed by displaying a message in the display area 45. In other words, in this embodiment, the operator can also be made aware that a change has occurred in the state of the shovel 100.

[0191] In this embodiment, a message similar to the message displayed in the display area 45 may be displayed on the display of the support device 400 or the management device 300. In this embodiment, information indicating the transition of the degree of abnormality in the past prescribed operation diagnosis may be displayed together with this message.

[0192] Furthermore, in the second image display region 41n2, the display mode of the image 41xB is different from the display modes of the images 41xF, 41xL, 41xR, and 41xI. For this reason, it can be seen that the image indicated by the image data captured by the camera S6B corresponding to the image 41xB is displayed in the second image display region 41n2.

[0193] The menu display area 41p has tabs 41p1 to 41p7. In the example of Fig. 8, the tabs 41p1 to 41p7 are arranged at intervals from each other on the left and right at the bottom of the image display section 41. Icon images for displaying various types of information are displayed on the tabs 41p1 to 41p7.

[0194] In the tab 41p1, a menu detailed item icon image for displaying a menu detailed item is displayed. When the operator selects the tab 41p1, the icon images displayed in the tabs 41p2 to 41p7 are switched to icon images associated with the menu detailed items.

[0195] In addition, in this embodiment, the icon images associated with the menu detail items displayed in the tabs 41p2 to 41p7 may include an icon image for displaying on the display device 40 a diagnostic menu screen for diagnosing the condition of the shovel 100.

[0196] When the tab on which this icon image is displayed is selected, the display control unit 304 of this embodiment may transition the display on the display device 40 from the screen 41 to a screen 41A shown in FIG.

[0197] An icon image for displaying information related to the digital level is displayed on the tab 41p4. When the operator selects the tab 41p4, the rear image CBT is switched to a screen showing information related to the digital level. However, the screen showing information related to the digital level may be displayed by superimposing the information on the rear image CBT or by reducing the rear image CBT.

[0198] In addition, the overhead image FV may be switched to a screen showing information related to the digital level, or the screen showing information related to the digital level may be displayed by superimposing it on the overhead image FV or by reducing the overhead image FV.

[0199] The tab 41p5 displays an icon image for transitioning the main screen displayed on the image display unit 41 to a loading work screen. When the operator selects the input device 42 corresponding to the tab 41p5 (described later), the main screen displayed on the image display unit 41 transitions to the loading work screen. At this time, the image display area 41n continues to be displayed, and the menu display area 41p switches to an area for displaying information related to the loading work.

[0200] An icon image for displaying information on information-based construction is displayed on the tab 41p6. When the operator selects the tab 41p6, the rear image CBT is switched to a screen showing information on information-based construction. However, a screen showing information on information-based construction may be displayed by superimposing the rear image CBT or by reducing the rear image CBT. Also, the overhead image FV may be switched to a screen showing information on information-based construction, or a screen showing information on a digital level may be displayed by superimposing the overhead image FV or by reducing the overhead image FV.

[0201] An icon image for displaying information related to the crane mode is displayed on the tab 41p7. When the operator selects the tab 41p7, the rear image CBT is switched to a screen showing information related to the crane mode. However, the screen showing information related to the crane mode may be displayed by superimposing the rear image CBT or by reducing the rear image CBT. Also, the overhead image FV may be switched to a screen showing information related to the crane mode, or the screen showing information related to the crane mode may be displayed by superimposing the overhead image FV or by reducing the overhead image FV.

[0202] No icon image is displayed on the tabs 41p2 and 41p3, so that even if the operator operates the tabs 41p2 and 41p3, the image displayed on the image display unit 41 does not change.

[0203] Incidentally, the icon images displayed on the tabs 41p1 to 41p7 are not limited to the above examples, and icon images for displaying other information may be displayed.

[0204] Next, a description will be given of the input device 42. As shown in Fig. 9, the input device 42 is composed of one or more button-type switches with which the operator selects tabs 41p1 to 41p7, inputs settings, and the like.

[0205] 9, the input device 42 includes seven switches 42a1 to 42a7 arranged in an upper row and seven switches 42b1 to 42b7 arranged in a lower row. The switches 42b1 to 42b7 are arranged below the switches 42a1 to 42a7, respectively.

[0206] However, the number, type, and arrangement of the switches of the input device 42 are not limited to the above example, and may be, for example, a type in which the functions of multiple button-type switches are combined into one using a jog wheel, jog switch, or the like, or the input device 42 may be separate from the display device 40. Also, a method in which the tabs 41p1 to 41p7 are directly operated using a touch panel in which the image display unit 41 and the input device 42 are integrated may be used.

[0207] The switches 42a1 to 42a7 are arranged below the tabs 41p1 to 41p7 in correspondence with the tabs 41p1 to 41p7, and function as switches for selecting the tabs 41p1 to 41p7, respectively.

[0208] Since the switches 42a1 to 42a7 are arranged below the tabs 41p1 to 41p7 in correspondence with the tabs 41p1 to 41p7, respectively, the operator can intuitively select the tabs 41p1 to 41p7.

[0209] In Fig. 9, for example, when the switch 42a1 is operated, the tab 41p1 is selected, the menu display area 41p is changed from a single-row display to a double-row display, and icon images corresponding to the first menu are displayed in the tabs 41p2 to 41p7. In addition, in response to the menu display area 41p being changed from a single-row display to a double-row display, the size of the rear image CBT is reduced. At this time, the size of the overhead image FV is maintained without being changed, so that the visibility when the operator checks the surroundings of the excavator 100 is not deteriorated.

[0210] Furthermore, when the switch 42a5 is operated, the display control unit 304 determines that the tab 41p5 is selected, and transitions the main screen to a loading work screen.

[0211] Specifically, when the switch 42a5 is operated, the display control unit 304 changes the menu display area 41p to a work information display area that displays information related to the loading work, while maintaining the image display area 41n.

[0212] In this manner, in this embodiment, since the captured image continues to be displayed in the image display area 41n even on the loading operation screen, the visibility when the operator checks the surroundings of the excavator 100 is not impaired.

[0213] The switch 42b1 is a switch that switches the captured image displayed in the image display region 41n. Each time the switch 42b1 is operated, the captured image displayed in the first image display region 41n1 of the image display region 41n is switched, for example, among a rear image, a left image, a right image, and an overhead image.

[0214] In addition, each time the switch 42b1 is operated, the captured image displayed in the second image display area 41n2 of the image display area 41n may be configured to switch between, for example, a rear image, a left image, a right image, and an overhead image.

[0215] Furthermore, the display control unit 304 may change the display manner of the images 41xF, 41xB, 41xL, 41xR, and 41xI in the icon image 41x in response to an operation of the switch 42b1.

[0216] Moreover, the image display area 41n may be configured such that the captured image displayed in the first image display area 41n1 and the captured image displayed in the second image display area 41n2 of the image display area 41n are switched every time the switch 42b1 is operated.

[0217] In this way, the switch 42b1 as the input device 42 may switch the screen displayed in the first image display area 41n1 or the second image display area 41n2, or may switch the screen displayed in the first image display area 41n1 and the second image display area 41n2. Also, a separate switch may be provided for switching the screen displayed in the second image display area 41n2.

[0218] The switches 42b2 and 42b3 are switches for adjusting the air volume of the air conditioner. In the example of Fig. 7, the air volume of the air conditioner is configured to decrease when the switch 42b2 is operated, and to increase when the switch 42b3 is operated.

[0219] The switch 42b4 is a switch for switching the cooling / heating function ON / OFF. In the example of Fig. 7, the switch 42b4 is configured to switch the cooling / heating function ON / OFF every time it is operated.

[0220] The switches 42b5 and 42b6 are used to adjust the set temperature of the air conditioner. In the example of Fig. 7, the set temperature is lowered when the switch 42b5 is operated, and is raised when the switch 42b6 is operated.

[0221] The switch 42b7 is a switch capable of switching the display of the engine operating time display area 41f.

[0222] The switches 42a2 to 42a6 and 42b2 to 42b6 are configured to allow input of numbers displayed on or near the respective switches. The switches 42a3, 42a4, 42a5 and 42b4 are configured to allow the cursor to be moved left, up, right and down, respectively, when the cursor is displayed on the menu screen.

[0223] The functions given to the switches 42a1 to 42a7 and 42b1 to 42b7 are merely examples, and the switches may be configured to be able to execute other functions.

[0224] As described above, when the tab 41p1 is selected in a state in which the overhead image FV and the rear image CBT are displayed in the image display area 41n, the first menu detailed items are displayed in the tabs 41p2 to 41p7 in a state in which the overhead image FV and the rear image CBT are displayed. Therefore, the operator can check the first menu detailed items while checking the overhead image FV and the rear image CBT.

[0225] Furthermore, in the image display area 41n, the overhead image FV is displayed without changing in size before and after the tab 41p1 is selected. This prevents a decrease in visibility when the operator checks the surroundings of the excavator 100.

[0226] 10 is a diagram showing an example of a diagnosis menu screen. A screen 41A shown in FIG.

[0227] 10, the screen 41A has a diagnosis menu display section 410. The image displayed in the diagnosis menu display section 410 is generated by the display control section 304.

[0228] The diagnosis menu display unit 410 displays a list of multiple diagnosis items according to the diagnosis location, etc. In the example shown in Fig. 10, the diagnosis menu display unit 410 displays a list of six diagnosis items, namely, "Comprehensive Diagnosis", "Simple Diagnosis", "Engine Related", "Hydraulic Related", and "Turning Related". The diagnosis items are stored in advance in the ROM of the controller 30, etc. Each diagnosis item may have one or more types of prescribed operations executed to perform the diagnosis.

[0229] Also, the screen 41A displays an "Exit" button used to end the display of the diagnosis menu. The operator can select any diagnostic item by touching the diagnostic item he / she wants to execute from the screen 41A. Note that the method of selecting a diagnostic item may be, for example, a button operation instead of a touch operation.

[0230] "Comprehensive Diagnosis" is a diagnostic item for comprehensively diagnosing whether each part of the excavator 100 is normal or not, and is associated with, for example, prescribed operations related to the engine, hydraulics, and swing. In other words, "Comprehensive Diagnosis" is an operation button for performing prescribed operation diagnosis.

[0231] When the operator selects "Comprehensive Diagnosis", the controller 30 executes prescribed operations related to the engine, hydraulics, and swing of the excavator 100 in a predetermined order, and associates information specifying the executed prescribed operation with detection values ​​of the state detection sensor acquired during the prescribed operation. Furthermore, the "Comprehensive Diagnosis" may be associated with other prescribed operations instead of or in addition to the above prescribed operations (the engine, hydraulics, and swing-related prescribed operations).

[0232] The prescribed operations for collecting data for this diagnosis may be performed automatically, or for each operation, guidance on the prescribed diagnostic operation is displayed on the display device, and the operation may be performed manually by the operator by operating a lever.

[0233] "Simple Diagnosis" is a diagnostic item for simply diagnosing whether each part of the shovel 100 is normal or not, and is associated with, for example, a part of the engine-related operations and a part of the hydraulics-related operations, which do not include the attachment operation and the swing operation of the shovel 100. When the operator selects "Simple Diagnosis", the controller 30 executes a part of the engine-related operations and a part of the hydraulics-related operations of the shovel 100, and information specifying the executed prescribed operation is associated with the detection value of the state detection device S1 acquired during the prescribed operation.

[0234] Furthermore, the "simplified diagnosis" may be associated with other prescribed operations instead of the above-mentioned prescribed operations (part of the engine-related and hydraulic pressure-related prescribed operations) or in addition to the above-mentioned prescribed operations.

[0235] "Engine-related" is a diagnostic item including one or more prescribed operations for diagnosing whether or not the engine 11 is normal. When the operator selects "Engine-related", the controller 30 executes prescribed engine-related operations of the shovel 100.

[0236] "Hydraulic related" is a diagnostic item that includes one or more specified operations for diagnosing whether the hydraulic system is normal or not, and includes, for example, one or more specified operations for diagnosing hydraulic pumps such as the main pump 14 and the pilot pump 15, and hydraulic actuators.

[0237] The "hydraulic related" includes, for example, "closing the arm to the stroke end (arm closing operation)" as the prescribed operation α, and "raising the boom to the stroke end with the arm closed (boom raising operation)" as the prescribed operation β. Furthermore, the "hydraulic related" may include other prescribed operations instead of or in addition to the above prescribed operations (prescribed operations α, β).

[0238] Here, an example of a prescribed operation for attachments such as the boom 4 and the arm 5 will be described. First, the controller 30 outputs a command to the operating valve 31 to rotate the boom 4 to the stroke end when the boom is raised. After that, a load is continuously applied. That is, the control valve 17 keeps flowing hydraulic oil to the boom cylinder 7. In this state, the boom 4 has reached the stroke end, so the hydraulic oil is discharged from the relief valve to the tank. In this way, by reaching the stroke end of the cylinder, a state in which a load is continuously applied can be achieved.

[0239] This makes it possible to detect diagnostic data in a stable and highly reproducible state regardless of the working environment. The same applies to the arm 5 and the bucket 6. Furthermore, after the stroke end of the cylinder is reached, the load may be changed by adjusting the regulator 14a of the main pump 14 or by changing the engine speed.

[0240] By detecting changes in the cylinder pressure of the attachments such as the boom 4 and changes in the discharge pressure of the main pump 14 when the load is changed, it becomes possible to reproduce dynamic conditions and further improve the diagnostic accuracy. As a result, it is possible to diagnose not only the hydraulic circuit but also the main pump 14 and the engine 11.

[0241] "Turning related" is a diagnostic item that includes one or more prescribed operations for diagnosing whether the turning mechanism 2 (the turning hydraulic motor 2A, the turning reducer, etc.) is normal. "Turning related" includes, for example, "turning with the attachment closed (turning operation)" as a prescribed operation. Furthermore, "turning related" may include other prescribed operations instead of or in addition to the above prescribed operations (prescribed operations for turning operation). Here, examples of prescribed operations for a drive unit that uses a hydraulic motor for turning, traveling, etc. will be described.

[0242] First, the controller 30 outputs a command to the operating valve 31 to place the attachments such as the boom 4 in a predetermined position. This is because, particularly in the swing diagnosis, the swing load is significantly affected by the swing inertia moment based on the change in the position of the attachment. For this reason, the boom 4, arm 5, bucket 6, etc. are driven so that the attachments are in the predetermined positions.

[0243] Furthermore, when a comparatively heavy end attachment such as a breaker is attached to the bucket 6, the operator may be notified by voice or screen display to change to a specified bucket 6. In this way, the attachment is adjusted before driving the swing drive unit so that the moment of inertia generated during swing is the same. After the adjustment is completed, a predetermined drive command is output from the controller 30 to the operation valve 31 to execute a swing operation. Based on the drive command to accelerate, maintain a constant speed, or decelerate the swing hydraulic motor 2A, the swing hydraulic motor 2A can execute a specified operation for swing.

[0244] This allows diagnosis of the swing hydraulic motor 2A, the hydraulic circuit for the swing hydraulic motor 2A, and the swing reducer. For example, if a problem occurs in the relief valve of the hydraulic circuit, the swing acceleration will deteriorate. In the case of such a problem, it can be detected from a change in the pressure detection value of the hydraulic circuit of the swing hydraulic motor 2A.

[0245] In the above-described embodiment, the diagnosis unit 320 is provided in the management device 300, but this is not limiting. The diagnosis unit 320 may be provided in the shovel 100 as a function of the controller 30 of the shovel 100, for example.

[0246] Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. [Explanation of symbols]

[0247] 30 Controller 40 Display device 100 Shovel 300 Management device 310 Storage section 320 Diagnostics Department 321 Information Acquisition Department 322 Feature Calculation Unit 323 Abnormality calculation unit 324 Judgment section 325 Diagnostic Time Change Section 326 Output section 330 Operation information storage unit 400 Support equipment

Claims

1. An information acquisition unit that acquires operation information of a shovel during a prescribed operation, which is an operation of transitioning from a predetermined first prescribed posture to a predetermined second prescribed posture; a change unit that changes the timing for causing the shovel to next perform the specified operation so as to be shorter than a predetermined period, according to the degree of abnormality calculated using the operation information; and an output unit that outputs a notification indicating that the timing has been changed.

2. The change unit is A shovel management device as described in claim 1, wherein, when the degree of abnormality is equal to or lower than a threshold value referenced to determine whether or not there is an abnormality in the shovel, the timing for causing the shovel to next perform the specified operation is changed so as to be shorter than a predetermined period depending on the degree of abnormality.

3. The change unit is 3. A shovel management device as described in claim 1 or 2, wherein when an increase ratio of the degree of abnormality calculated using the operation information acquired by the information acquisition unit to the degree of abnormality calculated using the past operation information is equal to or greater than a certain value, the timing for causing the shovel to next perform the specified operation is changed so as to be shorter than a predetermined period.

4. The notification may be: The excavator management device according to claim 1 , which is displayed on a display device of the excavator.

5. The notification may be: The excavator management device according to claim 1 , wherein the image is displayed together with a rear image of the excavator on a display device of the excavator.

6. The notification may be: The shovel management device according to claim 1 , wherein the shovel management device is displayed together with an overhead image of the shovel on a display device of the shovel.

7. A shovel management system including a shovel and a management device for the shovel, The management device includes: an information acquisition unit that acquires operation information of the shovel during a prescribed operation, which is an operation of transitioning from a predetermined first prescribed posture to a predetermined second prescribed posture; a change unit that changes the timing for causing the shovel to next perform the specified operation so that the timing is shorter than a predetermined period, according to an abnormality degree calculated using the operation information; and an output unit that outputs a notification indicating that the timing has been changed to a display device of the shovel.

8. A transmission unit that collects and transmits to a management device motion information during a specified motion, which is a motion of transitioning from a first predetermined specified posture to a second predetermined specified posture; a receiving unit that receives, from the management device, a notification indicating that the timing for the next execution of the specified operation has been changed to be shorter than a predetermined period based on the degree of abnormality calculated using the operation information; A display control unit that causes a display device to display a notification indicating that the timing has been changed.

Images