Excavator

Abstract

This excavator has an upper rotary body and a lower traveling body, the excavator including a control unit that permits changes to the parameters related to control of the excavator, such changes according to remote operations from a management device for managing the excavator.

Description

Excavator

[0001] The present invention relates to a shovel.

[0002] It is known that in conventional excavators, the operating speed of the hydraulic actuator is set in response to an operator's operation on an operation input device provided in the excavator.

[0003] International Publication No. 2019 / 187519

[0004] In the conventional technology described above, when changing settings that the operator is not permitted to change, a service person or the like who manages the excavator must go to the excavator's work site or the like to change the settings, which is cumbersome.

[0005] In view of the above problem, an object of the present invention is to make it easy to change settings.

[0006] The shovel according to an embodiment of the present invention is a shovel having an upper rotating body and a lower traveling body, and having a control unit that allows parameters related to the control of the shovel to be changed by remote control from a management device that manages the shovel.

[0007] Settings can be easily changed.

[0008] FIG. 1 is a diagram showing an example of a system configuration of a management system for an excavator. FIG. 2 is a diagram explaining the hardware configuration of each device included in the management system for an excavator. FIG. 3 is a diagram explaining the function of each device included in the management system for an excavator. FIG. 4 is a sequence diagram explaining the operation of the management system for an excavator. FIG. 5 is a flowchart explaining the operation of an excavator. FIG. 6 is a first diagram showing an example of a display of an excavator. FIG. 7 is a second diagram showing an example of a display of an excavator. FIG. 8 is a third diagram showing an example of a display of an excavator.

[0009] The excavator management system of this embodiment will be described below with reference to the drawings. Fig. 1 is a diagram showing an example of the system configuration of the excavator management system. In this embodiment, an excavator 100 will be described as an example of construction machinery.

[0010] The excavator management system SYS of this embodiment includes an excavator 100 and a management device 200. In the following description, the construction machine management system SYS will be simply referred to as the management system SYS.

[0011] In the management system SYS of this embodiment, the shovel 100 and the management device 200 are connected via a network or the like. Note that the management system SYS of this embodiment may include, in addition to the shovel 100 and the management device 200, a support device that supports the shovel 100.

[0012] The excavator 100 of this embodiment acquires operation information indicating the operation status of the excavator itself, transmits the information to the management device 200, and receives various types of information from the management device 200.

[0013] The operation information of the excavator 100 specifically includes position information indicating the current position of the excavator, orientation information indicating the orientation of the excavator, attitude information indicating the attitude of the excavator, work content information indicating the work content, load rate information indicating the load rate, cumulative time information indicating the cumulative operation time, fuel information including the fuel injection amount, CO ２ Includes emissions, work volume, etc.

[0014] Furthermore, in the shovel 100 of this embodiment, various items relating to the control of the shovel 100 are set and changed.

[0015] In this embodiment, setting various items related to the control of the shovel 100 means associating item values ​​with various items related to the control of the shovel 100 and storing them in the shovel 100.

[0016] Furthermore, in this embodiment, changing the settings of various items related to the control of the shovel 100 means changing the item values ​​associated with the various items related to the control of the shovel 100. In the following description of this embodiment, the item values ​​of the various items related to the control of the shovel 100 may be referred to as parameters.

[0017] In this embodiment, the various items related to the control of the shovel 100 include items whose settings are permitted to be changed by an operator who operates the shovel 100, and items whose settings are permitted to be changed only by a serviceman (administrator) who manages the shovel 100.

[0018] In the following description, items whose settings are permitted to be changed by an operator may be referred to as "worker items." Also, in the following description, items whose settings are permitted to be changed only by a serviceman (administrator) may be referred to as "administrator items." Details of administrator items will be described later.

[0019] In the shovel 100 of this embodiment, when changing the settings of the administrator items, the settings of the administrator items are changed by remote operation from the management device 200. Specifically, when the shovel 100 receives an instruction to change the settings of the administrator items from the management device 200 via the network, the shovel 100 changes the item values ​​(parameters) associated with the administrator items in accordance with the instruction to change the settings.

[0020] In this embodiment, the settings for the administrator items can be changed by remote operation from the management device 200, so that an administrator such as a serviceman does not need to go to the work site of the shovel 100 to change the settings for the administrator items, and the settings can be changed easily.

[0021] Furthermore, the excavator 100 of this embodiment may specify, within the period in which work is suspended, a period in which the operation of each actuator is stopped while the engine is running.

[0022] The period when the shovel 100 is not working includes a period when the operation of each actuator is stopped while the engine is running (a period when the engine is in an idling state), as well as a period when the engine is stopped. The state when the operation of each actuator of the shovel 100 is stopped includes a state when the engine 11, which serves as the prime mover of the shovel 100, is turned on and no lever operation is being performed, and a state when the engine 11 is turned off.

[0023] It should be noted that an electric motor may be used as the prime mover instead of an engine. In this case, a power storage device is also installed to supply power to the electric motor. The power storage device is a device for storing power, and is, for example, an electric double layer capacitor, a lithium ion battery, or a nickel-metal hydride battery. In this case, the excavator 100 controls the electric motor using an inverter, thereby rotating and driving the main pump 14 (see FIG. 2) using the power stored in the power storage device.

[0024] The management device 200 of this embodiment receives operation information from the shovel 100 and compiles the operation information for each work content of the shovel 100 indicated by the status information included in the operation information.

[0025] In addition, the management device 200 of this embodiment requests approval from the shovel 100 for changing the settings of the administrator items, and when this request is approved by the shovel 100, it sends an instruction to the shovel 100 via the network to change the settings of the administrator items.

[0026] 1, the management device 200 is realized by one information processing device, but this is not limiting. The management device 200 may be realized by multiple information processing devices. In other words, the functions realized by the management device 200 may be realized by multiple information processing devices.

[0027] Next, a description will be given of the configuration of the shovel 100 of this embodiment. FIG.

[0028] The excavator 100 has a lower traveling body 1, a slewing mechanism 2, and an upper rotating body 3. In the excavator 100, the upper rotating body 3 is rotatably mounted on the lower traveling body 1 via the slewing mechanism 2. A boom 4 is attached to the upper rotating body 3. An arm 5 is attached to the tip of the boom 4, and a bucket 6 is attached to the tip of the arm 5 as an end attachment.

[0029] The boom 4, arm 5, and bucket 6 constitute an excavation attachment, which is an example of an attachment. The boom 4 is driven by a boom cylinder 7, the arm 5 is driven by an arm cylinder 8, and the bucket 6 is driven by a bucket cylinder 9. A boom angle sensor S1 is attached to the boom 4, an arm angle sensor S2 is attached to the arm 5, and a bucket angle sensor S3 is attached to the bucket 6.

[0030] The boom angle sensor S1 is configured to detect the rotation angle of the boom 4. In this embodiment, the boom angle sensor S1 is an acceleration sensor, and can detect the rotation angle of the boom 4 relative to the upper rotating body 3 (hereinafter referred to as the "boom angle"). For example, the boom angle is at its minimum when the boom 4 is lowered to the lowest position, and increases as the boom 4 is raised.

[0031] The arm angle sensor S2 is configured to detect the rotation angle of the arm 5. In this embodiment, the arm angle sensor S2 is an acceleration sensor, and can detect the rotation angle of the arm 5 relative to the boom 4 (hereinafter referred to as the "arm angle"). For example, the arm angle is at its smallest when the arm 5 is fully closed, and increases as the arm 5 opens.

[0032] The bucket angle sensor S3 is configured to detect the rotation angle of the bucket 6. In this embodiment, the bucket angle sensor S3 is an acceleration sensor, and can detect the rotation angle of the bucket 6 relative to the arm 5 (hereinafter referred to as the "bucket angle"). For example, the bucket angle is at its minimum when the bucket 6 is fully closed, and increases as the bucket 6 opens.

[0033] The boom angle sensor S1, arm angle sensor S2, and bucket angle sensor S3 may each be a potentiometer using a variable resistor, a stroke sensor that detects the stroke amount of the corresponding hydraulic cylinder, a rotary encoder that detects the rotation angle around the connecting pin, a gyro sensor, or a combination of an acceleration sensor and a gyro sensor, etc.

[0034] A boom rod pressure sensor S7R and a boom bottom pressure sensor S7B are attached to the boom cylinder 7. An arm rod pressure sensor S8R and an arm bottom pressure sensor S8B are attached to the arm cylinder 8.

[0035] A bucket rod pressure sensor S9R and a bucket bottom pressure sensor S9B are attached to the bucket cylinder 9. The boom rod pressure sensor S7R, the boom bottom pressure sensor S7B, the arm rod pressure sensor S8R, the arm bottom pressure sensor S8B, the bucket rod pressure sensor S9R, and the bucket bottom pressure sensor S9B are also collectively referred to as the "cylinder pressure sensors."

[0036] The boom rod pressure sensor S7R detects the pressure in the rod-side oil chamber of the boom cylinder 7 (hereinafter referred to as the "boom rod pressure"), and the boom bottom pressure sensor S7B detects the pressure in the bottom-side oil chamber of the boom cylinder 7 (hereinafter referred to as the "boom bottom pressure"). The arm rod pressure sensor S8R detects the pressure in the rod-side oil chamber of the arm cylinder 8 (hereinafter referred to as the "arm rod pressure"), and the arm bottom pressure sensor S8B detects the pressure in the bottom-side oil chamber of the arm cylinder 8 (hereinafter referred to as the "arm bottom pressure").

[0037] The bucket rod pressure sensor S9R detects the pressure in the rod-side oil chamber of the bucket cylinder 9 (hereinafter referred to as the "bucket rod pressure"), and the bucket bottom pressure sensor S9B detects the pressure in the bottom-side oil chamber of the bucket cylinder 9 (hereinafter referred to as the "bucket bottom pressure").

[0038] The upper rotating body 3 is provided with a cabin 10 serving as a driver's room, and is equipped with a power source such as an engine 11. ２ A sensor may be provided to detect the amount of emissions.

[0039] Furthermore, the upper rotating body 3 is equipped with a controller 30, a display device 40, an operation unit 42, an audio output device 43, a memory device 47, a positioning device P1, a body tilt sensor S4, a rotation angular velocity sensor S5, an imaging device S6, and a communication device T1.

[0040] The upper rotating body 3 may be equipped with a power storage unit that supplies electric power, a motor generator that generates electric power using the rotational driving force of the engine 11, etc. The power storage unit is, for example, a capacitor or a lithium ion battery. The motor generator may function as an electric motor to drive a mechanical load, or may function as a generator to supply electric power to an electrical load.

[0041] The controller 30 functions as a main control unit that controls the drive of the shovel 100. In this embodiment, the controller 30 is configured by a computer including a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), and the like. The various functions of the controller 30 are realized, for example, by the CPU executing programs stored in the ROM. The various functions may include, for example, at least one of a machine guidance function that guides (directs) the operator in manually operating the shovel 100, and a machine control function that automatically assists the operator in manually operating the shovel 100.

[0042] Furthermore, the controller 30 may store various items related to the control of the shovel 100 in association with item values. In other words, the controller 30 may hold settings for various items related to the control of the shovel 100. In the controller 30, the items for which settings are held include items for the worker and items for the manager.

[0043] In the present embodiment, information in which various items related to the control of the shovel 100 are associated with item values ​​may be referred to as setting information. All or part of the setting information may be stored in a memory device included in the controller 30, or may be stored in a storage device 47 provided outside the controller 30, for example.

[0044] The display device 40 is configured to display various types of information. The display device 40 may be connected to the controller 30 via a communication network such as a Controller Area Network (CAN), or may be connected to the controller 30 via a dedicated line.

[0045] The operation unit 42 is configured to allow an operator to input various information to the controller 30. The operation unit 42 includes at least one of a touch panel, a knob switch, a membrane switch, and the like, which are installed inside the cabin 10.

[0046] The audio output device 43 is configured to output audio. The audio output device 43 may be, for example, an in-vehicle speaker connected to the controller 30, or an alarm such as a buzzer. In this embodiment, the audio output device 43 is configured to output various types of information by audio in response to an audio output command from the controller 30.

[0047] The storage device 47 is configured to store various types of information. The storage device 47 is, for example, a non-volatile storage medium such as a semiconductor memory. The storage device 47 may store information output by various devices while the shovel 100 is in operation, or may store information obtained via various devices before the shovel 100 starts to operate.

[0048] The storage device 47 may store, for example, data related to a target construction surface acquired via the communication device T1, etc. The target construction surface may be set by the operator of the shovel 100, or may be set by a construction manager, etc.

[0049] The positioning device P1 is configured to measure the position of the upper rotating body 3. The positioning device P1 may be configured to measure the orientation of the upper rotating body 3. In this embodiment, the positioning device P1 is, for example, a GNSS compass, which detects the position and orientation of the upper rotating body 3 and outputs the detected values ​​to the controller 30. Therefore, the positioning device P1 can also function as an orientation detection device that detects the orientation of the upper rotating body 3. The orientation detection device may be a direction sensor attached to the upper rotating body 3.

[0050] The machine body inclination sensor S4 is configured to detect the inclination of the upper rotating body 3. In this embodiment, the machine body inclination sensor S4 is an acceleration sensor that detects the longitudinal inclination angle about the longitudinal axis and the lateral inclination angle about the lateral axis of the upper rotating body 3 with respect to a virtual horizontal plane. The longitudinal axis and the lateral axis of the upper rotating body 3 are perpendicular to each other at, for example, the shovel center point, which is a point on the rotation axis of the shovel 100.

[0051] The swing angular velocity sensor S5 is configured to detect the swing angular velocity of the upper swing body 3. The swing angular velocity sensor S5 may be configured to detect or calculate the swing angle of the upper swing body 3. In this embodiment, the swing angular velocity sensor S5 is a gyro sensor. The swing angular velocity sensor S5 may also be a resolver, a rotary encoder, or the like.

[0052] The imaging device S6 is an example of a spatial recognition device, and is configured to acquire images of the periphery of the shovel 100. In the present embodiment, the imaging device S6 includes a front camera S6F that images the space in front of the shovel 100, a left camera S6L that images the space to the left of the shovel 100, a right camera S6R that images the space to the right of the shovel 100, and a rear camera S6B that images the space behind the shovel 100.

[0053] The imaging device S6 is, for example, a monocular camera having an imaging element such as a CCD or CMOS, and outputs the captured image to the display device 40. The imaging device S6 may be a stereo camera, a distance imaging camera, or the like. The imaging device S6 may also be replaced with another spatial recognition device such as a three-dimensional distance image sensor, an ultrasonic sensor, a millimeter-wave radar, a LIDAR, or an infrared sensor, or may be replaced with a combination of another spatial recognition device and a camera.

[0054] The front camera S6F is attached, for example, to the ceiling of the cabin 10, i.e., inside the cabin 10. However, the front camera S6F may also be attached to the outside of the cabin 10, such as on the roof of the cabin 10 or on the side of the boom 4. The left camera S6L is attached to the left end of the top surface of the upper rotating body 3, the right camera S6R is attached to the right end of the top surface of the upper rotating body 3, and the rear camera S6B is attached to the rear end of the top surface of the upper rotating body 3.

[0055] The communication device T1 is configured to control communication with an external device outside the shovel 100. In this embodiment, the communication device T1 controls communication with the external device via a satellite communication network, a mobile phone communication network, the Internet network, or the like. The external device is, for example, a management device 200 such as a server installed in an external facility, or a support device such as a smartphone carried by a worker near the shovel 100.

[0056] Next, the hardware configuration of each device included in the management system SYS will be described with reference to Fig. 2. Fig. 2 is a diagram illustrating the hardware configuration of each device included in the excavator management system.

[0057] First, we will explain the basic system mounted on the excavator 100. In Fig. 2, mechanical power transmission lines are indicated by double lines, hydraulic oil lines by thick solid lines, pilot lines by dashed lines, power lines by thin solid lines, and electrical control lines by dashed lines.

[0058] As shown in FIG. 2, the basic system of the excavator 100 mainly includes the engine 11, the main pump 14, the pilot pump 15, the control valve 17, the operating device 26, the operating pressure sensor 29, the controller 30, the switching valve 60, the display device 40, the engine speed adjustment dial 75, the output characteristics changeover switch 76, and the like.

[0059] The engine 11 is a diesel engine that employs isochronous control to maintain a constant engine speed regardless of load fluctuations. The amount of fuel injected into the engine 11, the timing of fuel injection, the boost pressure, and other parameters are controlled by an engine control unit (ECU) 74.

[0060] The engine 11 is connected to a main pump 14 and a pilot pump 15, which serve as hydraulic pumps. The main pump 14 is connected to a control valve 17 via a hydraulic oil line.

[0061] The control valve 17 is a hydraulic control device that controls the hydraulic system of the excavator 100. The control valve 17 is connected to hydraulic actuators such as the left traveling hydraulic motor, the right traveling hydraulic motor, the boom cylinder 7, the arm cylinder 8, the bucket cylinder 9, and the swing hydraulic motor.

[0062] Specifically, the control valve 17 includes a plurality of spool valves corresponding to the respective hydraulic actuators. Each spool valve is configured to be displaceable in response to the pilot pressure so that the opening area of ​​the PC port and the opening area of ​​the CT port can be increased or decreased. The PC port is a port that connects the main pump 14 to the hydraulic actuators. The CT port is a port that connects the hydraulic actuators to the hydraulic oil tank.

[0063] The pilot pump 15 is connected to the operating devices 26 via a pilot line. The operating devices 26 include, for example, a left operating lever, a right operating lever, and a travel operating device. The travel operating device includes, for example, a travel lever and a travel pedal. In this embodiment, each of the operating devices 26 is a hydraulic operating device and is connected via a pilot line to the pilot port of a corresponding spool valve in the control valve 17. However, the operating devices 26 may also be electric operating devices.

[0064] The operation pressure sensor 29 detects the operation of the operation device 26 in the form of pressure. The operation pressure sensor 29 outputs the detected value to the controller 30. However, the operation of the operation device 26 may also be detected electrically.

[0065] The switching valve 60 is configured to be able to switch between an enabled state and an disabled state of the operating device 26. The enabled state of the operating device 26 is a state in which the operator can operate the hydraulic actuator using the operating device 26. The disabled state of the operating device 26 is a state in which the operator cannot operate the hydraulic actuator using the operating device 26. In this embodiment, the switching valve 60 is a gate lock valve configured to operate in response to a command from the controller 30.

[0066] Specifically, the switching valve 60 is disposed in a pilot line connecting the pilot pump 15 and the operating device 26, and is configured to be able to switch between open and closed states of the pilot line in response to commands from the controller 30. The operating device 26 is enabled, for example, when the gate lock lever D4 is pulled up to open the switching valve 60 (gate lock valve), and disabled, when the gate lock lever D4 is pushed down to close the switching valve 60 (gate lock valve).

[0067] The display device 40 is configured to display various types of information. The display device 40 may be connected to the controller 30 via a communication network such as a CAN, or may be connected to the controller 30 via a dedicated line. In this embodiment, the display device 40 is configured to display one or more images captured by the imaging device S6 and a menu screen. The display device 40 operates by receiving power supply from the storage battery 70. The display device 40 has a control unit 40a, an image display unit 41, and an operation unit 42.

[0068] The control unit 40a controls the images displayed on the image display unit 41. In this embodiment, the control unit 40a is configured as a computer including a CPU, RAM, NVRAM, ROM, etc. In this case, the control unit 40a reads out programs corresponding to each functional element from the ROM and loads them into the RAM, and causes the CPU to execute the corresponding processing. However, each functional element may be configured as hardware, or may be configured as a combination of software and hardware. Furthermore, the images displayed on the image display unit 41 may be controlled by the controller 30 or the imaging device S6.

[0069] The image display unit 41 displays a captured image captured by at least one of the imaging devices S6 and a menu screen. The captured image may be, for example, a rearward image captured by the rear camera S6B, a leftward image captured by the left camera S6L, or a rightward image captured by the right camera S6R. The captured image may also be, for example, an overhead image obtained by combining images captured by the rear camera S6B, the left camera S6L, and the right camera S6R. The captured image may also be two or more images selected from the rearward image, the leftward image, the rightward image, and the overhead image. The menu screen includes a status screen showing the status of the excavator 100 and a setting screen showing various settings for the excavator 100.

[0070] The operation unit 42 is a switch panel including hardware switches. The operation unit 42 may be a touch panel. In this embodiment, the operation unit 42 is disposed below the image display unit 41 and includes a switch (e.g., a menu switch) for changing the image displayed by the image display unit 41. However, the location of the operation unit 42 is not limited to the above example. For example, the operation unit 42 may be disposed on an operation lever, or on the left or right console of the seat on both the left and right sides of the driver's seat. Here, in addition to the operation unit 42 provided on the display device 40, a driver's seat-side operation unit 50 having the same function as the operation unit 42 may be disposed on at least one of the operation lever, the left console of the seat, and the right console of the seat.

[0071] In the present embodiment, when a menu switch of the operation unit 42 is operated while the image display unit 41 is displaying the overhead-view image FV and rearward-view image CBT captured by the imaging device S6, the image display unit 41 displays a menu screen. For example, the image display unit 41 reduces the size of the rearward-view image CBT and displays a screen for selecting detailed menu items without changing the size of the overhead-view image FV before and after the menu switch of the operation unit 42 is operated. Then, when a predetermined switch of the operation unit 42 is operated while the screen for selecting detailed menu items is displayed, the image display unit 41 switches the rearward-view image CBT to a menu screen such as a status screen showing the status of the excavator 100 or a setting screen showing various settings of the excavator 100. At this time, the image display unit 41 displays the overhead-view image FV without changing its size.

[0072] Furthermore, the image display unit 41 may be configured to display a menu screen when the menu switch of the operation unit 42 is operated, whether the shovel 100 is in an operable state or an inoperable state. Furthermore, the image display unit 41 may be configured to display a menu screen when the menu switch of the operation unit 42 is operated only when the shovel 100 is in an inoperable state.

[0073] Furthermore, these may be configured to be switchable by a switching means such as a change-over switch. The state in which the shovel 100 is operable is, for example, a state in which the gate lock lever D4 is pulled up and the change-over valve 60 is opened, thereby enabling the operation device 26. The state in which the shovel 100 is inoperable is, for example, a state in which the gate lock lever D4 is pushed down and the change-over valve 60 is closed, thereby disabling the operation device 26.

[0074] The storage battery 70 is charged with electricity generated by, for example, the alternator 11 a. The power of the storage battery 70 is also supplied to the controller 30, etc. For example, the starter 11 b of the engine 11 is driven by the power from the storage battery 70 to start the engine 11.

[0075] The ECU 74 transmits data relating to the state of the engine 11, such as the coolant temperature, to the controller 30. The regulator 14a of the main pump 14 transmits data relating to the swash plate tilt angle to the controller 30. The discharge pressure sensor 14b transmits data relating to the discharge pressure of the main pump 14 to the controller 30. The oil temperature sensor 14c, which is provided in the line between the hydraulic oil tank and the main pump 14, transmits data relating to the temperature of the hydraulic oil flowing through that line to the controller 30. The operating pressure sensor 29 transmits data relating to the pilot pressure generated when the operating device 26 is operated to the controller 30. The controller 30 stores this data in a temporary storage unit (memory) and can transmit it to the display device 40 when necessary.

[0076] The engine speed adjustment dial 75 is a dial for adjusting the speed of the engine 11. The engine speed adjustment dial 75 transmits data relating to the setting state of the engine speed to the controller 30. The engine speed adjustment dial 75 is configured to be able to switch the engine speed among four modes: SP mode, H mode, A mode, and IDLE mode.

[0077] The SP mode is a rotation speed mode selected when priority is given to the amount of work performed and uses the highest engine rotation speed. The H mode is a rotation speed mode selected when priority is given to both the amount of work performed and fuel economy and uses the second highest engine rotation speed. The A mode is a rotation speed mode selected when priority is given to fuel economy while operating the excavator 100 with low noise and uses the third highest engine rotation speed.

[0078] The IDLE mode is a rotation speed mode selected when it is desired to put the engine 11 into an idling state, and uses the lowest engine rotation speed. The engine 11 is controlled to maintain a constant engine rotation speed corresponding to the rotation speed mode set with the engine rotation speed adjustment dial 75. The engine rotation speed adjustment dial 75 is provided with an output characteristics changeover switch 76, and the output characteristics of the excavator 100 can be changed by pressing the output characteristics changeover switch 76. The output characteristics changeover switch 76 may, for example, change the engine output torque diagram, or may reduce the engine rotation speed of each stage on the engine rotation speed adjustment dial 75 by a predetermined value.

[0079] The alarm device 49 is a device for attracting the attention of people involved in work with the shovel 100. The alarm device 49 is configured, for example, by a combination of an indoor alarm device and an outdoor alarm device. The indoor alarm device is a device for attracting the attention of the operator of the shovel 100 who is inside the cabin 10, and includes, for example, at least one of a sound output device, a vibration generating device, and a light emitting device provided inside the cabin 10. The indoor alarm device may be the display device 40.

[0080] The outdoor alarm device is a device for attracting the attention of workers working around the excavator 100, and includes, for example, at least one of a sound output device and a light-emitting device provided outside the cabin 10. The sound output device as the outdoor alarm device includes, for example, a traveling alarm device attached to the bottom surface of the upper rotating body 3. The outdoor alarm device may also be a light-emitting device provided on the upper rotating body 3. However, the outdoor alarm device may be omitted. For example, when the imaging device S6 functioning as an object detection device detects a predetermined object, the alarm device 49 may notify a person involved in work with the excavator 100 of that fact.

[0081] Next, a description will be given of the hardware configuration of the management device 200 of this embodiment. The management device 200 of this embodiment is a computer having a CPU 201, a storage device 202, a communication device 203, an input device 204, and a display device 205, which are all interconnected by a bus.

[0082] The CPU 201 controls the overall operation of the management device 200. The storage device 202 stores programs executed by the CPU 201 and various information related to the shovel 100. The communication device 203 communicates with the shovel 100 and support devices via a network.

[0083] The input device 204 is used to input information to the management device 200, and is realized by, for example, a keyboard, a pointing device, etc. The display device 205 displays various information output from the management device 200, and is realized by, for example, a display.

[0084] Next, the functions of each device included in the management system SYS of this embodiment will be described with reference to Fig. 3. Fig. 3 is a diagram for explaining the functions of each device included in the excavator management system.

[0085] First, the functions of the shovel 100 will be described. Note that each of the units described below is realized by the controller 30 of the shovel 100 reading and executing a program stored in a memory device. The shovel 100 of this embodiment has an input receiving unit 31, a display control unit 32, a safety condition determination unit 33, a setting change unit 34, and a notification output unit 35.

[0086] The input receiving unit 31 receives various inputs to the shovel 100. Specifically, for example, the input receiving unit 31 receives inputs of requests and instructions transmitted from the management device 200 to the shovel 100.

[0087] The display control unit 32 controls the display on the display device 40. The safety condition determination unit 33 determines whether or not the state of the excavator 100 satisfies the safety conditions.

[0088] The safety conditions of this embodiment will be described below. The safety conditions in this embodiment are that the gate lock lever D4 is pushed down to disable the operating device 26, and the engine 11 is turned off. In other words, the safety conditions in this embodiment are that it is ensured that the excavator 100 does not start moving (is not operating).

[0089] Therefore, the safety condition determination unit 33 of this embodiment determines whether the operating device 26 of the shovel 100 is disabled and the engine 11 is turned off, and if the operating device 26 is disabled and the engine 11 is turned off, determines that the safety conditions are met.

[0090] In addition, the safety condition in this embodiment may be that any one of the following conditions is satisfied: the gate lock lever D4 is pushed down and the operating device 26 is disabled; the engine 11 is turned off; or the operating lever included in the operating device 26 is in a neutral position.

[0091] The setting change unit 34 changes the settings of the administrator items in response to a setting change instruction sent from the management device 200. In this embodiment, the setting change instruction sent from the management device 200 may include the administrator items to be changed and the item values ​​of these administrator items after the change.

[0092] When the setting change unit 34 receives a change instruction, it identifies the administrator item that is to be changed from the setting information held in the controller 30, and updates (overwrites) the item value of the identified administrator item with the changed item value.

[0093] The notification output unit 35 outputs various notifications generated in the shovel 100. Specifically, if the state of the shovel 100 does not satisfy the safety conditions, the notification output unit 35 may output a notification to the management device 200 indicating this.

[0094] Next, a description will be given of the functions of the management device 200. The management device 200 of this embodiment includes a communication control unit 210 and a change instruction unit 220.

[0095] The communication control unit 210 of this embodiment controls communication between the management device 200 and the shovel 100. Specifically, the communication control unit 210 transmits to the shovel 100 an approval request for changing the settings of the administrator items, an instruction to change the settings of the administrator items, etc. In addition, the communication control unit 210 receives an approval notification from the shovel 100 approving the change of the settings of the administrator items.

[0096] The change instruction unit 220 of this embodiment generates a change instruction that instructs the shovel 100 to change the settings of the manager items. The change instruction may be input to the management device 200, for example, by a manager (serviceman) who manages the shovel 100. Furthermore, the manager items whose settings are to be changed and the item values ​​after the change may be agreed upon in advance between, for example, the operator of the shovel 100 and the serviceman.

[0097] Here, the administrator items of this embodiment will be described.

[0098] The manager items in this embodiment are items whose item values ​​are prohibited from being changed by the user of the shovel 100. The user of the shovel 100 is, for example, an operator who operates the shovel 100. The manager items in this embodiment may be determined in advance by a manager who manages the shovel 100. The manager of the shovel 100 may be a serviceman who has the authority to perform maintenance on the shovel 100.

[0099] Specifically, the administrator items in this embodiment include, for example, items whose corresponding item values ​​are numeric values ​​and items whose corresponding item values ​​are "valid" or "invalid."

[0100] Among the administrator items, items whose corresponding item values ​​are numerical include, for example, the maximum rotation speed of the engine 11, the minimum rotation speed of the engine 11 when idling, the rotation speed of the engine 11 when IDLE mode is selected, the brightness of the display device 40, etc.

[0101] In addition, items whose corresponding item values ​​are numerical include the speed balance of the rotation operation when an operation to rotate the upper rotating body 3 is performed, and the boom raising operation when a lever operation to raise the boom 4 is performed.

[0102] Furthermore, among the administrator items, for items whose corresponding item value is "enabled" or "disabled", the enable / disable of the function indicated by the administrator item is set.

[0103] The functions indicated by the administrator items whose corresponding item values ​​are "enabled" or "disabled" include, for example, a function to automatically disable the operating device 26, a function to display a setting screen for specific settings, a function to output an alarm as a buzzer sound, etc.

[0104] The function of automatically disabling the operating device 26 is a function that maintains the disabled state of the operating lever when an operation to pull up the gate lock lever D4 is performed while the operating lever is in a lever input state.

[0105] The function of displaying a setting screen for specific settings is a function of displaying a setting screen for setting the pressure value of the backup line used when the end attachment is an end attachment other than the bucket 6.

[0106] The items included in the administrator items are not limited to the items described above, and may include items other than those described above.

[0107] Next, the operation of the management system SYS of this embodiment will be described with reference to Fig. 4. Fig. 4 is a sequence diagram illustrating the operation of the excavator management system.

[0108] In the management system SYS of this embodiment, the management device 200 transmits an approval request to the excavator 100 via the communication control unit 210, requesting approval to change the settings of the manager items (step S401).

[0109] The timing for transmitting the approval request from the management device 200 to the shovel 100 may be determined, for example, by a call between the operator of the shovel 100 and a serviceman who uses the management device 200. Specifically, the approval request is transmitted from the management device 200 to the shovel 100 when the operator and the serviceman mutually agree to change the settings of the administrator items and the serviceman performs an operation on the management device 200 to transmit the approval request to the shovel 100.

[0110] When the input receiving unit 31 receives the approval notification, the safety condition determining unit 33 of the excavator 100 determines whether or not the excavator itself satisfies the safety conditions (step S402).

[0111] Then, when the safety conditions are satisfied, the excavator 100 causes the display control unit 32 to display an approval screen on the display device 40 (step S403).

[0112] At this time, the main screen may be displayed on the display device 40, and the display control unit 32 may accept the approval request and transition the main screen displayed on the display device 40 to an approval screen.

[0113] Next, when the input receiving unit 31 of the shovel 100 receives an approval operation on the approval screen, the notification output unit 35 sends an approval notification to the management device 200 indicating that the change in the settings of the administrator items has been approved (step S404).

[0114] When the management device 200 receives the approval notification via the communication control unit 210, the change instruction unit 220 generates a change instruction to change the item value of the approved manager item (step S405), and the communication control unit 210 sends the change instruction to the shovel 100 (step S406).

[0115] When the input receiving unit 31 of the shovel 100 receives a change instruction to change the settings of the manager items, the setting change unit 34 changes the item values ​​(parameters) of the manager items in accordance with the change instruction (step S407).

[0116] Next, the operation of the shovel 100 will be described in more detail with reference to Figure 5. Figure 5 is a flowchart illustrating the operation of the shovel.

[0117] 5 is executed when the shovel 100 is in a key-on state. When the shovel 100 is in a key-on state, power is supplied to the display device 40 and power is supplied to the controller 30.

[0118] The excavator 100 of this embodiment receives, via the input receiving unit 31, an approval request for a change in the settings of the manager items from the management device 200 (step S501).

[0119] Next, the safety condition determination unit 33 of the excavator 100 determines whether or not the state of the excavator itself satisfies the safety conditions (step S502).

[0120] If it is determined in step S502 that the safety conditions are not met, the excavator 100 sends an error notification indicating that the safety conditions are not met to the management device 200 via the notification output unit 35 (step S503), and returns to step S502.

[0121] If it is determined in step S502 that the safety conditions are met, the excavator 100 causes the display control unit 32 to display an approval screen on the display device 40 for approving the change in the settings of the administrator items (step S504).

[0122] Next, the shovel 100 determines whether or not an operation to approve the change in the settings of the administrator items has been accepted on the approval screen by the input accepting unit 31 (step S505). If an operation to approve has not been accepted in step S505, the shovel 100 returns to step S505.

[0123] In step S505, if an approval operation is received, the shovel 100 receives the change instruction sent from the management device 200 via the input receiving unit 31, and changes the settings of the administrator items in accordance with the setting instruction via the setting change unit 34 (step S506).

[0124] Specifically, the setting change unit 34 identifies an administrator item based on the administrator item to be changed that is included in the change instruction, and updates the item value (parameter) associated with the identified administrator item to the changed item value (parameter) included in the change instruction.

[0125] In this manner, in this embodiment, the settings of the administrator items, the settings of which are prohibited to be changed by the operator of the shovel 100, can be changed by remote control from the management device 200.

[0126] Therefore, according to this embodiment, the service technician does not need to go to the work site of the shovel 100 to change the settings of the administrator items, and the service technician can change the settings of the administrator items from the business establishment where the management device 200 is located.

[0127] The shovel 100 of this embodiment monitors whether the shovel 100 maintains a state in which the safety conditions are satisfied, even while, for example, changing the item values ​​(parameters) of the manager items. In other words, the shovel 100 uses the safety condition determination unit 33 to determine whether the safety conditions are satisfied, even while performing the processing of Fig. 5 .

[0128] Then, if the safety conditions are no longer satisfied, the shovel 100 suspends the process of changing the item values ​​(parameters) of the manager items. In other words, if an operation that does not satisfy the safety conditions is performed while the parameters are being changed (for example, turning the engine ON), the shovel 100 suspends the process shown in Fig. 5. In this embodiment, by monitoring the state of the shovel 100 in this way, safety can be improved.

[0129] Next, a display example on the display device 40 of the shovel 100 of this embodiment will be described with reference to FIGS. 6A, 6B, and 6C.

[0130] Fig. 6A is a first diagram showing an example of a display of a shovel. The screen shown in Fig. 6A is an example of a main screen of the shovel 100. The main screen shown in Fig. 6A may be displayed on the display device 40 before the approval screen is displayed in step S403 of Fig. 4.

[0131] The main screen shown in FIG. 6A shows a state in which an overhead image, a rear image, and a right image are displayed.

[0132] First, a description will be given of the image display unit 41. As shown in Fig. 6A, 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 status display area 41e, an engine operating 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 urea water remaining amount display area 41j, a hydraulic oil temperature display area 41k, an air conditioner operation status display area 41m, an image display area 41n, and a menu display area 41p.

[0133] 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 operating 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.

[0134] Specifically, the date and time display area 41a is an area that displays the current date and time. The driving mode display area 41b is an area that displays the current driving mode. The attachment display area 41c is an area that displays an image representing the currently installed attachment. The fuel efficiency display area 41d is an area that displays fuel efficiency information calculated by the controller 30. The fuel efficiency display area 41d includes an average fuel efficiency display area 41d1 that displays the lifetime average fuel efficiency or the section average fuel efficiency, and an instantaneous fuel efficiency display area 41d2 that displays the instantaneous fuel efficiency.

[0135] 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 cumulative 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. The rotation speed mode display area 41i is an area that displays, as 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, as 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.

[0136] 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.

[0137] The image display area 41n is an area for displaying an image captured by the imaging device S6. In the example of Fig. 6A, the image display area 41n displays an overhead image FV, a rear image CBT, and a right image CRT. The overhead image FV is a virtual viewpoint image generated by the control unit 40a and is generated based on images captured by the rear camera S6B, the left camera S6L, and the right camera S6R. In addition, an shovel figure GE corresponding to the shovel 100 is placed 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 present around the shovel 100.

[0138] 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. The right image CRT is an image that shows the space to the right of the shovel 100 and is generated based on an image acquired by the right camera S6R.

[0139] The image display area 41n has a first image display area 41n1 located above and a second image display area 41n2 and a third image display area 41n3 located below. In the example of Fig. 6A, the overhead image FV is arranged in the first image display area 41n1, the rearward image CBT is arranged in the second image display area 41n2, and the right-hand image CRT is arranged in the third image display area 41n3. However, the image display area 41n may also arrange the overhead image FV in the second image display area 41n2 and the rearward image CBT in the first image display area 41n1.

[0140] 6A, the overhead image FV, the rearward image CBT, and the rightward image CRT are arranged adjacent to each other vertically, but they may be arranged with a gap therebetween. Also, in the example of FIG. 6A, the image display area 41n is a vertically elongated area, but the image display area 41n may be a horizontally elongated area. When the image display area 41n is a horizontally elongated area, the overhead image FV may be arranged on the left side as the first image display area 41n1, and the rearward image CBT and the rightward image CRT may be arranged on the right side as the second image display area 41n2. In this case, the overhead image FV and the rearward image CBT may be arranged with a gap therebetween, or the positions of the overhead image FV and the rearward image CBT may be interchanged.

[0141] Furthermore, in this embodiment, an icon image 41x is displayed in each of the first image display area 41n1, the second image display area 41n2, and the third image display area 41n3. The icon image 41x is an image that represents the relative relationship between the position of the imaging device S6 and the orientation of the attachment of the upper rotating body 3.

[0142] 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.

[0143] The images 41xF, 41xB, 41xL, 41xR, and 41xI correspond to the front camera S6F that captures an image in front of the shovel 100, the rear camera S6B that captures an image behind the shovel 100, the left camera S6L that captures an image to the left of the shovel 100, and the right camera S6R that captures an image to the right of the shovel 100. In addition, the image 41xI corresponds to the camera inside the cabin 10.

[0144] In this embodiment, when an image associated with a camera is selected from the icon image 41x, image data captured by the camera corresponding to the selected image is displayed in the image display area 41n.

[0145] 6A, in first image display area 41n1, the display manner of images 41xB, 41xL, and 41xR is different from the display manner of images 41xF and 41xI. Therefore, it can be seen that first image display area 41n1 displays an overhead image represented by image data synthesized from image data captured by rear camera S6B, left camera S6L, and right camera S6R corresponding to images 41xB, 41xL, and 41xR, respectively.

[0146] Furthermore, in the second image display area 41n2, the display mode of image 41xB is different from the display modes of images 41xF, 41xL, 41xR, and 41xI. Therefore, it can be seen that the image represented by the image data captured by the rear camera S6B corresponding to image 41xB is displayed in the second image display area 41n2. Furthermore, in the third image display area 41n3, the display mode of image 41xR is different from the display modes of images 41xF, 41xL, 41xB, and 41xI. Therefore, it can be seen that the image represented by the image data captured by the right camera S6R corresponding to image 41xR is displayed in the third image display area 41n3.

[0147] The menu display area 41p has tabs 41p1 to 41p7. In the example of Fig. 6A, 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. Icons for displaying various types of information are displayed on the tabs 41p1 to 41p7.

[0148] Tab 41p1 displays menu detail item icons for displaying menu detail items. When tab 41p1 is selected by the operator, the icons displayed on tabs 41p2 to 41p7 are switched to icons associated with the menu detail items.

[0149] Tab 41p4 displays an icon for displaying information about the digital level. When tab 41p4 is selected by the operator, the rear image CBT is switched to a screen showing information about the digital level. However, the screen showing information about the digital level may be displayed by superimposing the information on the rear image CBT or by reducing the rear image CBT. Furthermore, the overhead image FV may be switched to a screen showing information about the digital level, or the screen showing information about the digital level may be displayed by superimposing the information on the overhead image FV or by reducing the overhead image FV.

[0150] An icon for displaying information related to information-based construction is displayed on tab 41p6. When tab 41p6 is selected by the operator, the rear image CBT is switched to a screen showing information related to information-based construction. However, a screen showing information related to information-based construction may be displayed by superimposing the information on the rear image CBT or by reducing the rear image CBT. Furthermore, the overhead image FV may be switched to a screen showing information related to information-based construction, or a screen showing information related to information-based construction may be displayed by superimposing the information on the overhead image FV or by reducing the overhead image FV.

[0151] Tab 41p7 displays an icon for displaying information about the crane mode. When tab 41p7 is selected by the operator, the rear image CBT is switched to a screen showing information about the crane mode. However, the screen showing information about the crane mode may be displayed by superimposing the information on the rear image CBT or by reducing the rear image CBT. Furthermore, the overhead-view image FV may be switched to a screen showing information about the crane mode, or the screen showing information about the crane mode may be displayed by superimposing the information on the overhead-view image FV or by reducing the overhead-view image FV.

[0152] No icons are displayed on the tabs 41p2, 41p3, and 41p5, so even if the operator operates the tabs 41p2, 41p3, and 41p5, the image displayed on the image display unit 41 does not change.

[0153] The icons displayed on the tabs 41p1 to 41p7 are not limited to the examples described above, and icons for displaying other information may be displayed.

[0154] Next, the operation unit 42 will be described. As shown in FIG. 6A, the operation unit 42 is configured with one or more button-type switches that allow the operator to select tabs 41p1 to 41p7, input settings, and the like. In the example of FIG. 6A, the operation unit 42 includes seven switches 42a1 to 42a7 arranged in an upper row and seven switches 42b1 to 42b7 arranged in a lower row. Switches 42b1 to 42b7 are arranged below switches 42a1 to 42a7, respectively. However, the number, shape, and arrangement of the switches in the operation unit 42 are not limited to the above example. For example, the functions of multiple button-type switches may be combined into one using a jog wheel, jog switch, or the like, or the operation unit 42 may be separate from the display device 40. Alternatively, the tabs 41p1 to 41p7 may be directly operated using a touch panel that integrates the image display unit 41 and the operation unit 42.

[0155] The switches 42a1 to 42a7 are arranged below the tabs 41p1 to 41p7 in correspondence with the tabs 41p1 to 41p7, respectively, and function as switches for selecting the tabs 41p1 to 41p7. Because 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.

[0156] The switch 42b1 is a switch that switches the captured image displayed in the image display area 41n. Each time the switch 42b1 is operated, the captured image displayed in the first image display area 41n1 of the image display area 41n is switched, for example, among a rearward image, a leftward image, a rightward image, and an overhead image. Also, 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 switched, for example, among a rearward image, a leftward image, a rightward image, and an overhead image.

[0157] In addition, the image display area 41n may be configured so that each time the switch 42b1 is operated, the captured image displayed in the first image display area 41n1, the captured image displayed in the second image display area 41n2, and the captured image displayed in the third image display area 41n3 are swapped.

[0158] In this way, the switch 42b1 serving as the operation unit 42 may switch between the screens displayed in the first image display area 41n1, the second image display area 41n2, and the third image display area 41n3. Alternatively, a separate switch may be provided for switching between the screens displayed in the second image display area 41n2 and the third image display area 41n3.

[0159] The switches 42b2 and 42b3 are switches for adjusting the air volume of the air conditioner. In the example of Fig. 6A, when the switch 42b2 is operated, the air volume of the air conditioner decreases, and when the switch 42b3 is operated, the air volume of the air conditioner increases.

[0160] The switch 42b4 is a switch that switches the cooling and heating functions ON and OFF. In the example of Fig. 6A, the cooling and heating functions are switched ON and OFF every time the switch 42b4 is operated.

[0161] The switches 42b5 and 42b6 are switches for adjusting the set temperature of the air conditioner. In the example of Fig. 6A, when the switch 42b5 is operated, the set temperature is lowered, and when the switch 42b6 is operated, the set temperature is raised.

[0162] The switch 42b7 is a switch that can switch the display of the engine operating time display area 41f.

[0163] Switches 42a2 to 42a6 and 42b2 to 42b6 are configured to allow the user to input numbers displayed on or near the switches, while switches 42a3, 42a4, 42a5, and 42b4 are configured to allow the user to move the cursor left, up, right, and down, respectively, when the cursor is displayed on the menu screen.

[0164] 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 perform other functions.

[0165] Furthermore, the image display area 41n displays the overhead image FV without changing its 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.

[0166] In the excavator 100 of this embodiment, when an approval request is received from the management device 200 while the main screen shown in FIG. 6A is displayed on the display device 40, the main screen is transitioned to the approval screen shown in FIG. 6B.

[0167] 6B is a second diagram showing an example of a display on the shovel. The screen shown in FIG. 6B is an example of an approval screen for the shovel 100, and is displayed on the display device 40 in step S403 of FIG.

[0168] In the approval screen shown in FIG. 6B, the rear image CBT and the right image CRT are displayed in the first image display area 41n1, and the second image display area 41n2 and the third image display area 41n3 have been switched to the display area 44.

[0169] The display area 44 may display a message 44a and an operation button 44b. The message 44a asks the operator of the shovel 100 whether or not to approve a change to the item value (parameter) of the manager item via remote operation. The operation button 44b is an operation button for transmitting an approval notice to the management device 200 indicating that the operator of the shovel 100 has approved the change to the parameter via remote operation.

[0170] When an operation to select the operation button 44 b is performed on the approval screen shown in FIG. 6B , an approval notification is transmitted from the excavator 100 to the management device 200 .

[0171] 6C is a third diagram showing an example of a display of a shovel. The screen shown in FIG. 6C is an example of a screen displayed on display device 40 while parameters are being changed by remote control, and may be displayed on display device 40 in step S407 of FIG.

[0172] In the screen shown in FIG. 6C, the rear image CBT and the right image CRT are displayed in the first image display area 41n1, and the second image display area 41n2 and the third image display area 41n3 have been switched to the display area 45.

[0173] Messages 45a and 45b may be displayed in the display area 45. The message 45a is a message that notifies the operator of the shovel 100 that remote operation is being performed by the management device 200. The message 45b is a message that indicates that the shovel 100 is in the process of changing the item value (parameter) of the administrator item in response to a change instruction received from the management device 200.

[0174] In this embodiment, the operator of the shovel 100 can be made aware that parameters are being changed by remote control, and the operator can be made to maintain a state that satisfies safety conditions.

[0175] In addition, in this embodiment, a message indicating that remote operation is being performed by the management device 200 and a message indicating that parameters are being changed are displayed together with the captured images (rear image and right image), so that visibility is not impaired when the operator checks the surroundings of the shovel 100.

[0176] When the parameter change is completed, the shovel 100 of this embodiment may transition from the screen shown in FIG. 6C to a change completion screen indicating that the parameter change has been completed.

[0177] Furthermore, the excavator 100 of this embodiment may transition from the change completion screen to the main screen shown in FIG. 6A when, for example, the engine 11 is turned on after the parameter change is completed.

[0178] Although the embodiments for carrying out the present invention have been described above, the above content does not limit the content of the invention, and various modifications and improvements are possible within the scope of the present invention.

[0179] This international application claims priority based on Japanese Patent Application No. 2022-061043 filed on March 31, 2022, and the entire contents of Japanese Patent Application No. 2022-061043 are incorporated herein by reference.

[0180] REFERENCE SIGNS LIST 1 Lower traveling body 2 Swing mechanism 3 Upper rotating body 30 Controller 31 Input receiving unit 32 Display control unit 33 Safety condition determination unit 34 Setting change unit 35 Notification output unit 40 Display device 100 Excavator 200 Management device

Claims

1. An upper rotating body; A shovel having a lower traveling body, A shovel having a control unit that allows parameters related to control of the shovel to be changed by remote control from a management device that manages the shovel.

2. The control unit is The shovel according to claim 1 , wherein the change of the parameter is permitted when the state of the shovel satisfies a safety condition.

3. The safety condition is: The shovel according to claim 2, including any one of the following: an engine of the shovel is off; operation of an operating device of the shovel is disabled; and an operating lever included in the operating device is in a neutral state.

4. The control unit is receiving, from the management device, an approval request for requesting approval for a change of a parameter related to control of the shovel, and displaying, on a display device, an approval screen for making the approval; The shovel according to claim 1 , wherein when the approval is given on the approval screen, a change of parameters relating to control of the shovel is permitted.

5. The control unit is The shovel according to claim 1 , wherein, while a parameter relating to control of the shovel is being changed, information indicating that the parameter is being changed is displayed on a display device by remote control from the management device.

6. The control unit is The shovel according to claim 5 , wherein the display device also displays an image captured by an imaging device.

7. The control unit is The shovel according to claim 1 , wherein if a state of the shovel becomes a state that does not satisfy a safety condition during the change of a parameter related to the control of the shovel, the process of changing the parameter is interrupted.