Work machine display control system, work machine display system, work machine, work machine display control method, and work machine display control program

Abstract

To provide a display control system for a work machine, the display system for the work machine, the work machine, a display control method for the work machine, and a display control program for the work machine, capable of easily improving operability of the work machine.SOLUTION: The display control system is used for a work machine including a working unit and a driving device. The work unit performs work by driving an attachment attached to a machine body of the work machine. The drive device supplies power to the attachment to drive the attachment. A display control system includes a display processing unit that causes a display apparatus to display a first display screen C1 including drive information D11, C2, and C3 about a drive apparatus. The drive information C1, C2, and C3 includes setting information set by the user.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a work machine display control system used to display information related to a work machine, a work machine display system, a work machine, a work machine display control method, and a work machine display control program. [Background technology]

[0002] As related technology, an image display device that simultaneously displays two or more types of images on a display device (monitor) installed on a work machine (construction machine) is known (see, for example, Patent Document 1). The device according to the related technology displays on the display device measurement data images of predetermined instruments and camera images obtained from a camera installed to obtain an auxiliary external field of view. Information displayed as the measurement data images includes an engine coolant temperature gauge, a fuel gauge, and a hydraulic oil temperature gauge. Here, on the display device, the measurement data image is superimposed on the camera image, and is displayed so that the camera image is seen through the measurement data image. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-163370 Summary of the Invention [Problem to be solved by the invention]

[0004] In the related art described above, the display device only displays a coolant temperature gauge, a fuel gauge, a hydraulic oil temperature gauge, camera images, etc., but does not display any information related to the drive unit that supplies power to the attachment to drive the attachment. Therefore, for example, some operators, such as those with low skill levels, may find it difficult to grasp the operating status of the drive unit, which may result in poor operability of the work machine.

[0005] An object of the present invention is to provide a work machine display control system, a work machine display system, a work machine, a work machine display control method, and a work machine display control program that facilitate improving the operability of the work machine. [Means for solving the problem]

[0006] A work machine display control system according to one aspect of the present invention is used in a work machine that includes a working unit and a drive unit. The working unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment. The work machine display control system includes a display processing unit that causes a display device to display a first display screen that includes drive information related to the drive unit. The drive information includes setting information that is set by a user.

[0007] A work machine display system according to one aspect of the present invention includes the work machine display control system and the display device that displays the first display screen.

[0008] A work machine according to one aspect of the present invention includes the work machine display system and a machine body on which the display device is mounted.

[0009] A work machine display control method according to one aspect of the present invention is used in a work machine having a working unit and a drive unit, and includes displaying a first display screen including drive information related to the drive unit on a display device. The work unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment. The drive information includes setting information set by a user.

[0010] A work machine display control program according to one aspect of the present invention is used in a work machine having a working unit and a drive unit, and causes one or more processors to execute a program to cause a display device to display a first display screen including drive information related to the drive unit. The work unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment. The drive information includes setting information set by a user. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a work machine display control system, a work machine display system, a work machine, a work machine display control method, and a work machine display control program that can easily improve the operability of a work machine. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a block diagram showing a work machine according to the first embodiment. [Figure 2] FIG. 2 is a schematic external view of the display system according to the first embodiment. [Figure 3] FIG. 3 is a schematic external view of the operating device for the work machine according to the first embodiment. [Figure 4] FIG. 4 is a diagram illustrating an example of a first display screen displayed by the display control system according to the first embodiment. [Figure 5] FIG. 5 is a diagram illustrating an example of a first display screen displayed by the display control system according to the first embodiment. [Figure 6] FIG. 6 is a conceptual diagram showing transition states of the setting screen displayed by the display control system according to the first embodiment. [Figure 7] FIG. 7 is a diagram illustrating an example of a first display screen displayed by the display control system according to the first embodiment. [Figure 8] FIG. 8 is a diagram illustrating an example of a first display screen displayed by the display control system according to the first embodiment. [Figure 9] FIG. 9 is a diagram illustrating an example of a first display screen displayed by the display control system according to the first embodiment. [Figure 10] FIG. 10 is a diagram showing an example of an allocation setting screen displayed by the display control system according to the first embodiment. [Figure 11] FIG. 11 is a flowchart showing an example of processing related to a display control method performed by the display control system according to the first embodiment. [Figure 12] FIG. 12 is a block diagram showing a display system and a work machine according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following description will discuss preferred embodiments of the present invention with reference to the accompanying drawings. The preferred embodiments are merely examples of the present invention and are not intended to limit the technical scope of the present invention.

[0014] (Embodiment 1) [1] Overall structure As shown in Figures 1 and 2, a work machine display control system 1 (hereinafter simply referred to as "display control system 1") according to this embodiment is used to display information related to a work machine 3 such as a backhoe. The display control system 1 controls the display device 2 to cause the display device 2 to display a display screen D1 (see Figure 2), such as a first display screen D11 (see Figure 4). In this embodiment, as an example, the display device 2 is mounted on the body 30 of the work machine 3, and presents various pieces of information on the display screen D1 to a user (operator) operating the work machine 3. In other words, the user operating the work machine 3 can visually obtain various pieces of information related to the work machine 3 by looking at the display screen D1 displayed on the display device 2.

[0015] In this embodiment, as shown in Fig. 1, the display control system 1, together with the display device 2, constitutes a work machine display system 10 (hereinafter simply referred to as "display system 10"). In other words, the display system 10 according to this embodiment comprises the display control system 1 and a display device 2 that displays a first display screen D11. Furthermore, in this embodiment, the display system 10, together with the machine body 30, constitutes a work machine 3. In other words, the work machine 3 according to this embodiment comprises the display system 10 and the machine body 30 on which the display device 2 is mounted.

[0016] Here, the display system 10 and the machine 30 are capable of communicating with each other. In the present disclosure, "capable of communication" means that information (data) can be exchanged directly or indirectly via a communication network or a repeater, etc., using an appropriate communication method such as wired communication or wireless communication (communication using radio waves or light as a medium). The display system 10 and the machine 30 can communicate with each other, for example, using a communication method such as CAN (Controller Area Network). The communication means between the display system 10 and the machine 30 is not limited to the above example, and can be realized by any appropriate communication means. Furthermore, it is not an essential component of the display control system 1 that the display system 10 and the machine 30 can communicate with each other.

[0017] In a work machine 3 equipped with such a display system 10, for example, an engine 37 (see FIG. 1) drives a hydraulic pump, and hydraulic oil is supplied from the hydraulic pump to hydraulic actuators (including hydraulic cylinders, hydraulic motors, etc.) in various parts of the machine body 30, thereby driving the machine body 30. Such a work machine 3 is controlled, for example, by a user (operator) seated in the driver's cab of the machine body 30 operating operating devices 35 such as operating levers 351, 352 (see FIG. 3).

[0018] Here, a display device 2 is mounted in the driver's cab of the machine body 30, and the user operates the work machine 3 while viewing various information related to the work machine 3 that is displayed on the display device 2. As an example, information related to the operating state of the work machine 3, such as the cooling water temperature and hydraulic oil temperature, is displayed on the display screen D1 of the display device 2, allowing the user to check on the display device 2 information related to the operating state of the work machine 3 that is necessary for operating the work machine 3.

[0019] The work machine 3 is also equipped with a drive unit 34, and performs various tasks by using power from the drive unit 34 to drive the attachment 311 of the working section 31. That is, in the work machine 3, an attachment 311 such as a breaker or an auger is attached to the machine body 30 depending on the type of task, and the work is performed by supplying power from the drive unit 34 to the attachment 311 to drive it. Therefore, when the work machine 3 performs a task, the output (power) of the drive unit 34 supplied to the attachment 311 is controlled, for example, by the user (operator) operating the operation device 35 so that the attachment 311 moves as desired.

[0020] In the display control system 1 according to this embodiment, information relating to the drive unit 34, such as the operating state of the drive unit 34, can also be displayed on the display screen D1 of the display device 2. This allows the user (operator) to visually confirm the operating state of the drive unit 34 when operating the work machine 3 to perform work, improving the operability of the work machine 3. For example, even an operator with a low level of skill can operate the work machine 3 accurately and smoothly while visually confirming the operating state of the drive unit 34, which is expected to improve the efficiency of work using the work machine 3.

[0021] [2] Definition In this disclosure, the term "work machine" refers to various types of work machinery, and examples include work vehicles such as backhoes (including hydraulic excavators, mini excavators, etc.), wheel loaders, and carriers. The work machine 3 is not limited to "vehicles," and may be, for example, a work vessel, or a work air vehicle such as a drone or multicopter. Furthermore, the work machine 3 is not limited to construction machinery (construction equipment), and may be, for example, agricultural machinery (farm machinery) such as a rice transplanter, tractor, or combine harvester. In this embodiment, unless otherwise specified, an example will be described in which the work machine 3 is a riding-type backhoe that is capable of performing work such as excavation, leveling, trench digging, or loading.

[0022] In the present disclosure, the term "screen" such as the display screen D1 refers to an image (picture) displayed on the display device 2, and includes icons, figures, photographs, text, and video. In other words, the display control system 1 is capable of causing the display device 2 to display the display screen D1, which includes images or the like that represent information relating to the operating state of the work machine 3, such as the coolant temperature and hydraulic oil temperature. Here, when the display screen D1 includes video or the like, the display screen D1 does not include a fixed image, but includes an image that changes every moment.

[0023] [3] Aircraft Next, the configuration of the machine body 30 of the work machine 3 will be described with reference to Figure 1. The work machine 3 is equipped with a working section 31, a swivel section 32, and a traveling section 33 on the machine body 30. In this embodiment, the machine body 30 further includes a drive device 34, an operation device 35, a control device 36, an engine 37, etc.

[0024] The working unit 31 is supported by the swivel unit 32 and performs work. The swivel unit 32 is located above the travel unit 33 and is configured to be able to rotate relative to the travel unit 33 around a rotation axis that is aligned in the vertical direction. The travel unit 33 is configured to be able to travel (including rotate) on the ground. In this embodiment, as described above, it is assumed that the work machine 3 is a ride-on backhoe, and therefore the working unit 31 is driven in accordance with the operation of a user (operator) seated in the cab to perform work such as excavation. The cab (e.g., a cabin) in which the user (operator) sits is provided on the swivel unit 32.

[0025] The working unit 31 has an attachment 311. The attachment 311 is a tool (work implement) that is attached to the body 30 of the work machine 3, and is any tool selected from a number of types of tools depending on the type of work to be performed. As an example, the attachment 311 is removably attached to the body 30 and is replaced depending on the type of work to be performed. Examples of attachments 311 for the work machine 3 include various tools such as breakers, augers, crushers, forks, buckets, fork claws, steel frame cutters, asphalt cutters, brush cutters, rippers, mulchers, tiltrotators, and tampers. The working unit 31 performs work by driving the attachment 311 with power from the drive unit 34.

[0026] The working unit 31 further has a boom, an arm, and a hydraulic actuator (including a hydraulic cylinder, a hydraulic motor, etc.). An attachment 311 is attached to the tip of the arm. The working unit 31 operates by receiving power from an engine 37 as a power source. Specifically, the engine 37 drives a hydraulic pump, and hydraulic oil is supplied from the hydraulic pump to the hydraulic actuator of the working unit 31, causing the working unit 31 to operate.

[0027] The drive device 34 is a device for supplying power to the attachment 311. In the present embodiment, as an example, the drive device 34 is formed of a device (mechanism) such as a PTO (Power take-off) for extracting power from the engine 37 as power for driving the attachment 311, which is formed of hydraulic equipment. Specifically, the drive device 34 supplies hydraulic oil to the attachment 311 by sending it from a hydraulic pump driven by the engine 37 to the attachment 311. Here, the drive device 34 adjusts the amount of power supplied to the attachment 311 by adjusting the flow rate of the hydraulic oil supplied to the attachment 311.

[0028] Here, the drive unit 34 has a plurality of output ports 341 to 344 (four in this embodiment, as an example). Each of these plurality of output ports 341 to 344 is configured to be able to output power. Each of the plurality of output ports 341 to 344 is capable of individually adjusting the power, i.e., the flow rate of hydraulic oil, and the drive unit 34 outputs power from each of these plurality of output ports 341 to 344. In this embodiment, each of the plurality of output ports 341 to 344 is a PTO port, and therefore, output port 341 may be referred to as "PTO1," output port 342 as "PTO2," output port 343 as "PTO3," and output port 344 as "PTO4."

[0029] The swivel unit 32 has a hydraulic motor (hydraulic actuator) for swinging, etc. In addition to a driver's cab, the swivel unit 32 is equipped with an engine 37, etc. The traveling unit 33 has, for example, a pair of left and right crawlers, a hydraulic motor (hydraulic actuator) for traveling, etc. Like the working unit 31, the swivel unit 32 and the traveling unit 33 each operate by receiving power from the engine 37 as a power source. In other words, the swivel unit 32 and the traveling unit 33 operate by supplying hydraulic oil from a hydraulic pump to the hydraulic actuators (hydraulic motors) of the swivel unit 32 and the traveling unit 33.

[0030] As described above, the engine 37 functions as a power source that supplies power to each component. In this embodiment, as an example, the engine 37 is a diesel engine. The engine 37 is driven by fuel (light oil in this case) supplied from a fuel tank. The fuel tank is equipped with a fuel level sensor that detects the remaining amount of fuel, and the fuel level sensor outputs an electric signal (sensor signal) corresponding to the detected remaining amount of fuel.

[0031] The operation device 35 is disposed in the cab of the machine body 30 and is a user interface for receiving operation inputs from a user (operator). The operation device 35 receives various operations from the user, for example, by outputting an electrical signal in response to the user's operation. In this embodiment, as an example, the operation device 35 includes a pair of operation levers 351, 352 (see FIG. 3). The operation device 35 will be described in detail in the section "[5] Operation Device."

[0032] The control device 36 is made up of, for example, an electronic control unit (ECU), and controls each part of the work machine 3. At least the drive device 34 and the operation device 35 are connected to the control device 36. Therefore, the control device 36 can monitor the operating state of the drive device 34, operation input to the operation device 35, etc.

[0033] In addition to the above-described configuration, the machine body 30 is further equipped with a communication terminal, a fuel tank, a battery, etc. Furthermore, the machine body 30 is equipped with sensors (including cameras) for monitoring the operating status of the machine body 30, such as a coolant temperature sensor, a hydraulic oil temperature sensor, a tachometer that measures the number of revolutions of the engine 37, an hour meter that measures the operating time, and a camera that captures images of the periphery of the machine body 30. In addition, the machine body 30 is also equipped with sensors that detect the status of the cut-off lever, gate lock lever, and starter key switch, or the type of attachment 311 attached to the working unit 31.

[0034] [4] Display system Next, the configuration of the display system 10 will be described in detail with reference to Fig. 1 and Fig. 2. As described above, the display system 10 includes the display control system 1 and the display device 2. In this embodiment, as an example, the display control system 1 and the display device 2 are housed in a single housing, and all functions of the display system 10 are integrated within the single housing, as shown in Fig. 2.

[0035] The display system 10, in which the display control system 1 and the display device 2 are integrated in this manner, is mounted in the driver's cab of the aircraft 30. This allows the user (operator) to view the display screen D1 displayed on the display device 2 and to operate the display device 2 as necessary.

[0036] 1 and 2, the display device 2 includes a display unit 21 and an operation unit 22. The display device 2 is configured to be able to communicate with the display control system 1, and is able to exchange data with the display control system 1. In this embodiment, as an example, the display device 2 is a dedicated device used in the work machine 3.

[0037] The display unit 21 is a user interface for presenting information to a user (operator), such as a liquid crystal display or an organic EL display that displays various types of information. The display unit 21 presents various types of information to the user by displaying them. In this embodiment, as an example, the display unit 21 is a full-color liquid crystal display with a backlight, and has a "horizontally elongated" display area that is long in the horizontal direction, as shown in FIG. 2.

[0038] The operation unit 22 is a user interface for accepting operation inputs by a user (operator) to a display screen D1 displayed on the display unit 21. The operation unit 22 accepts various operations by the user, for example, by outputting an electrical signal in response to the user's operation. As an example in this embodiment, the operation unit 22 includes a plurality of (six in this case) mechanical push button switches 221 to 226, as shown in FIG. 2. These plurality of push button switches 221 to 226 are arranged close to the display area (below in the example of FIG. 2) so as to follow the periphery of the display area of ​​the display unit 21. These plurality of push button switches 221 to 226 are associated with items displayed on a display screen D1, which will be described later, and by operating any of the plurality of push button switches 221 to 226, any item on the display screen D1 is operated (selected).

[0039] Furthermore, the operation unit 22 may include a touch panel, an operation dial, etc. In this case as well, an operation on the operation unit 22 causes an operation (selection) of any item on the display screen D1.

[0040] 1, the display control system 1 includes a data acquisition unit 11, a data output unit 12, and a display processing unit 13. The display control system 1 is configured to be able to communicate with the machine body 30, and can receive, for example, drive information related to the drive device 34 and the operation state of the operation device 35 from the machine body 30. Here, the display control system 1 may acquire this information (data) directly from the drive device 34 and the operation device 35, etc., or may acquire it via the control device 36 of the machine body 30.

[0041] The data acquisition unit 11 periodically or irregularly acquires various data, including drive information about the drive device 34 and the operation state of the operation device 35, from the machine body 30 (controller 36 thereof). That is, the data acquisition unit 11 acquires various information (data), including, for example, data indicating the operating state of the drive device 34 and the operation state of the operation device 35. Here, the drive information about the drive device 34 includes not only the operating state of the drive device 34, but also the operating state of a maintenance function that maintains the output of the drive device 34, the connection state of the attachment 311 to the drive device 34, and the type of attachment 311 connected to the drive device 34. Furthermore, the data acquisition unit 11 acquires, as drive information, from the machine body 30 (controller 36 thereof), allocation information and the like that indicates the correspondence between the multiple output ports 341 to 344 of the drive device 34 and the multiple operators Sw1 to Sw4 (see FIG. 3 ) of the operation device 35. The data acquired by the data acquisition unit 11 is stored, for example, in a memory or the like.

[0042] The data output unit 12 outputs various data, such as allocation information, to the device 30 (controller 36 thereof) on a regular or irregular basis. In other words, the allocation information, etc., which indicates the correspondence between the multiple output ports 341-344 and the multiple operators Sw1-Sw4, can be set arbitrarily in the display device 2. Therefore, the data set in the display device 2 is reflected in the device 30 by being output to the device 30 by the data output unit 12. The data transmitted (output) from the data output unit 12 to the device 30 is stored in, for example, a memory of the control device 36.

[0043] The display processing unit 13 is mainly composed of a computer system having one or more processors such as a CPU (Central Processing Unit) and one or more memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and executes various processes (information processing). The display processing unit 13 has a function of displaying at least a display screen D1 on the display device 2. Specifically, the display processing unit 13 generates the display screen D1 based on data acquired by the data acquisition unit 11, and controls the display device 2 to display the display screen D1 on the display unit 21 of the display device 2. Furthermore, the display processing unit 13 operates in response to an operation received by an operation unit 22 of the display device 2.

[0044] [5] Operating device Next, the configuration of the operation device 35 will be described in detail with reference to Fig. 3. As described above, the operation device 35 includes a pair of operation levers 351, 352. As shown in the "front view" of Fig. 3, the operation lever 351 is located on the right hand side as seen from the user (operator) in the cab, and the operation lever 352 is located on the left hand side as seen from the user in the cab. Therefore, the user, for example, holds the operation lever 351 in his right hand and the operation lever 352 in his left hand, and operates this pair of operation levers 351, 352 to cause the work machine 3 to perform various operations such as moving forward and backward.

[0045] Here, the operating device 35 has a plurality of (four in this example) operators Sw1 to Sw4 corresponding one-to-one to the plurality of output ports 341 to 344 of the drive device 34 so that the plurality of output ports 341 to 344 can be individually operated. The operator Sw1 is disposed on the front side (front face) of the operating lever 351, and the operator Sw2 is disposed on the front side (front face) of the operating lever 352. The operator Sw4 is disposed on the rear side (rear face) of the operating lever 351, and the operator Sw3 is disposed on the rear side (rear face) of the operating lever 352. That is, in this embodiment, the right-hand operating lever 351 is provided with the operator Sw1 and the operator Sw4 on its front and rear faces, respectively, and the left-hand operating lever 352 is provided with the operator Sw2 and the operator Sw3 on its front and rear faces, respectively. These multiple operators Sw1 to Sw4 constitute "adjustment operators" that adjust the magnitude of the power (flow rate of hydraulic oil) output from the drive device 34.

[0046] In this embodiment, as an example, each of the multiple operating elements Sw1 to Sw4 is a lever switch that can be operated by tilting it to the right A1 or left A2. In particular, each of the operating elements Sw1 to Sw4 is a momentary switch that has a neutral position at the center in the left-right direction, tilts it to the right A1 or left A2 only while an operating force is applied, and returns to the neutral position when the operating force is released. When each of these operating elements Sw1 to Sw4 is operated to the right A1 or left A2, the magnitude of the power (flow rate of hydraulic oil) output from the corresponding output port 341 to 344 is determined according to the amount of operation (amount of tilt). Basically, the greater the amount of operation of each of the operating elements Sw1 to Sw4, the greater the power output from the corresponding output port 341 to 344, i.e., the greater the flow rate of hydraulic oil.

[0047] As an example, it is assumed here that output port 341 corresponds to operator Sw1, output port 342 corresponds to operator Sw2, output port 343 corresponds to operator Sw3, and output port 344 corresponds to operator Sw4. In this case, when the user operates operator Sw1, the power output from output port 341 in the drive device 34 is adjusted according to the amount of operation of operator Sw1. On the other hand, when the user operates operator Sw4, the power output from output port 344 in the drive device 34 is adjusted according to the amount of operation of operator Sw4. The correspondence between the multiple output ports 341 to 344 and the multiple operators Sw1 to Sw4 is defined by "allocation information," and the allocation information is stored in, for example, a memory of the control device 36.

[0048] In this embodiment, an operator Sw5 is disposed on the rear side (back side) of the operation lever 351, and an operator Sw6 is disposed on the rear side (back side) of the operation lever 352. The operators Sw5 and Sw6 are operators for enabling (turning on) a maintenance function (hold function) that maintains the output of the drive device 34. In other words, the operators Sw5 and Sw6 constitute "maintenance operators" for maintaining the output of the drive device 34. In this embodiment, as an example, the operators Sw5 and Sw6 are both momentary push button switches. Therefore, when the user presses the operators Sw5 and Sw6, the maintenance function is enabled and the output of the drive device 34 is maintained (held).

[0049] In particular, in this embodiment, the operator Sw5 provided on the operating lever 351 enables the maintain function for the output port 341 corresponding to the operator Sw1 provided on the same operating lever 351. On the other hand, the operator Sw6 provided on the operating lever 352 enables the maintain function for the output port 342 corresponding to the operator Sw2 provided on the same operating lever 352. Therefore, for example, when the user presses the operator Sw5, the output is maintained (retained) for the output port 341 out of the multiple output ports 341 to 344.

[0050] However, without being limited to the above configuration, each of the operators Sw5 and Sw6 may correspond to at least one of the output ports 341 to 344 corresponding to the operators Sw1 to Sw4 provided on the same operation levers 351 and 352. Therefore, for example, for the operator Sw5, the maintenance function may be enabled for both the output ports 341 and 344, or the maintenance function may be enabled for the output port 344. On the other hand, for the operator Sw6, the maintenance function may be enabled for both the output ports 342 and 343, or the maintenance function may be enabled for the output port 343.

[0051] In short, in the work machine 3 according to this embodiment, the drive device 34 operates in response to operations on the operating device 35, which has a plurality of operating elements Sw1 to Sw6. Here, the plurality of operating elements Sw1 to Sw6 include adjustment operating elements (operators Sw1 to Sw4) for adjustment operations that adjust the output of the drive device 34, and maintenance operating elements (operators Sw5, Sw6) for maintenance operations that maintain the output of the drive device 34. Furthermore, a plurality of adjustment operating elements (operators Sw1 to Sw4) are provided for one operating lever 351 (or operating lever 352).

[0052] According to this configuration, it is possible to control a plurality of output ports 341, 344 (or output ports 342, 343) by operating one operation lever 351 (or operation lever 352). Moreover, since the operation elements Sw5, Sw6 are also provided on each operation lever 351, 352, it is also possible to activate the maintenance function by operating one operation lever 351 (or operation lever 352).

[0053] Here, when the adjustment operators (operators Sw1 to Sw4) and the maintenance operators (operators Sw5, Sw6) are operated simultaneously, the work machine 3 maintains the output of the drive device 34 at a value corresponding to the operation amount of the adjustment operators (operators Sw1 to Sw4). For example, if the user presses the operator Sw5 while operating the operator Sw1, the adjustment operator (operator Sw1) and the maintenance operator (operator Sw5) will be operated simultaneously. In this case, the magnitude of the power output from the output port 341 is maintained at a value corresponding to the operation amount of the operator Sw1 at the time the operator Sw5 is operated.

[0054] On the other hand, when only the maintenance operators (operators Sw5, Sw6) of the adjustment operators (operators Sw1 to Sw4) and the maintenance operators (operators Sw5, Sw6) are operated, the work machine 3 maintains the output of the drive device 34 at a specified value. For example, when the user presses only the operator Sw5, the magnitude of the power output from the output port 341 corresponding to the operator Sw1 is maintained at a specified value that is preset for the output port 341.

[0055] Therefore, depending on how the user operates the device, it is possible to easily switch between maintaining the output of the drive device 34 at an arbitrary value and maintaining the output of the drive device 34 at a specified value. Hereinafter, the operating state of the maintaining function when maintaining the output of the drive device 34 at an arbitrary value will be referred to as "arbitrary hold," and the operating state of the maintaining function when maintaining the output of the drive device 34 at a specified value will be referred to as "specified value hold."

[0056] In this embodiment, as shown in FIG. 3, each of the operating levers 351, 352 is provided with an indicator light 350 on its grip portion that indicates the operating state of the maintenance function. The indicator light 350 includes, for example, a light-emitting element such as an LED, and indicates the operating state of the maintenance function by its light-emitting state (on state). As an example, the indicator light 350 is turned off when the maintenance function is disabled (off), emits light in a first color (e.g., yellow) when the operating state of the maintenance function is "arbitrary hold," and emits light in a second color (e.g., red) when the operating state of the maintenance function is "preset value hold." In this embodiment, the indicator light 350 is disposed on the front side (front face) of each of the operating levers 351, 352, but this arrangement is not intended to be limiting.

[0057] According to this configuration, the user can easily check the operating state of the maintenance functions using the operation levers 351, 352 at hand.

[0058] Furthermore, in this embodiment, when the maintenance function is enabled, the work machine 3 disables (turns off) the maintenance function when an adjustment operator (operator Sw1 to Sw4) is operated. For example, when the operating state of the maintenance function is "arbitrary hold" and output port 341 is maintained at an arbitrary value, if the user operates operator Sw1, the maintenance function for output port 341 is disabled and the output of output port 341 changes. Similarly, when the operating state of the maintenance function is "preset value hold," the maintenance function is disabled (turned off) when an adjustment operator (operator Sw1 to Sw4) is operated.

[0059] According to this configuration, the user can cancel the maintenance of the output of the drive device 34 with a simple operation. However, the condition for disabling the maintenance function is not limited to the operation of the adjustment operators (operators Sw1 to Sw4), and may be, for example, the operation of the maintenance operators (operators Sw5 and Sw6) when the maintenance function is enabled.

[0060] The configuration related to the operation device 35 described in this embodiment can be applied to the work machine 3 regardless of the configuration of the display system 10. In other words, for example, even if the display device 2 is not present, the configuration related to the operation device 35 can be applied to the work machine 3.

[0061] Furthermore, the operators Sw1 to Sw4 are not limited to lever switches and may be, for example, toggle switches, rocker switches, rotary switches, slide switches, or encoders. The operators Sw5 and Sw6 are not limited to pushbutton switches and may be, for example, lever switches or touch sensors. The operation levers 351 and 352 may be reversed left and right, or may be arranged side by side, front and back, or up and down. There may be only one operation lever 351 or 352. Furthermore, the operators Sw5 and Sw6 are not limited to being arranged on the rear side of the operation levers 351 and 352, but may be arranged on the side or front side of the operation levers 351 and 352, for example. The operation device 35 may also have operators other than the above-mentioned multiple operators Sw1 to Sw6 on the operation levers 351 and 352. The indicator light 350 may also be omitted as appropriate.

[0062] [6] Display control method 4 to 11, an example of a work machine display control method (hereinafter simply referred to as "display control method") executed primarily by the display control system 1 will be described. In other words, the display control method according to this embodiment is used in a work machine 3 equipped with a working unit 31 and a drive unit 34, and includes (processing) displaying a first display screen D11, which will be described below, on the display device 2.

[0063] The display control method according to this embodiment is executed by a display control system 1 whose main component is a computer system, and in other words, is embodied in a display control program for a work machine (hereinafter simply referred to as a "display control program"). In other words, the display control program according to this embodiment is a computer program that causes one or more processors to execute each process related to the display control method. The display control program according to this embodiment is used in a work machine 3 that is equipped with a working unit 31 and a drive unit 34, and is a program that causes one or more processors to execute (process) displaying a first display screen D11, which will be described below, on the display device 2. Such a display control program may be executed, for example, by the display control system 1 and the display device 2 working together.

[0064] Here, the display control system 1 executes the various processes described below related to the display control method when a specific, preset start operation is performed to execute the display control program. The start operation is, for example, an operation to start the engine 37 of the work machine 3. On the other hand, the display control system 1 ends the various processes described below related to the display control method when a specific, preset end operation is performed. The end operation is, for example, an operation to stop the engine 37 of the work machine 3.

[0065] [6.1] Display screen Here, we will first explain the configuration of the display screen D1 displayed on the display unit 21 of the display device 2 by the display control method. In the drawings showing the display screen D1 displayed on the display unit 21 of the display device 2, such as Fig. 4, the dashed dotted lines, lead lines, and reference symbols representing areas are added merely for the purpose of explanation and are not actually displayed on the display device 2.

[0066] The display screen D1 shown in Fig. 4 is a home screen that is first displayed by the display control method, and is the first display screen D11. The first display screen D11 is a basic display screen D1 that is first displayed on the display device 2 while the work machine 3 is in operation. The display screen D1 can transition from the first display screen D11 to various display screens D1 including setting screens D12 to D14 (see Fig. 6), allocation setting screens D15 and D16 (see Fig. 10), a menu screen, a crane screen, a mode screen, a camera screen, etc., in accordance with operations on the operation unit 22.

[0067] 4, the first display screen D11 as the display screen D1 includes a remaining amount display area R1 (first area) and a switching display area R2 (second area). The first display screen D11 further includes a third area R3, a fourth area R4, a fifth area R5, a sixth area R6, a seventh area R7, an eighth area R8, a ninth area R9, and a tenth area R10.

[0068] Specifically, the first display screen D11 is divided into four regions vertically (up and down). Each of the top three regions is further divided horizontally (left and right). As a result, the first display screen D11 is divided into a total of ten regions. The second region from the top is, from left to right, a remaining amount display region R1, a switching display region R2, and a third region R3. The bottom region is a fourth region R4. The third region from the top is, from left to right, a fifth region R5, a sixth region R6, and a seventh region R7, and the top region is, from left to right, an eighth region R8, a ninth region R9, and a tenth region R10. In terms of vertical size, of the four regions divided vertically, the second region from the top (remaining amount display region R1, switching display region R2, and third region R3) is the largest. In terms of horizontal size, the middle area (switchable display area R2, sixth area R6, and ninth area R9) is the largest among the three areas divided horizontally.

[0069] However, the arrangement and size of each of these areas are merely examples and can be changed as appropriate. Furthermore, it is not essential that each area be clearly separated by a boundary line. For example, in the example of Figure 4, the switching display area R2 and the third area R3 are clearly separated by a boundary line, while there is no boundary line between the remaining amount display area R1 and the switching display area R2. Of course, the remaining amount display area R1 and the switching display area R2 may also be clearly separated by a boundary line.

[0070] The remaining amount display area R1 is a rectangular area that is long in the vertical direction. In the remaining amount display area R1, remaining amount information G1 relating to the remaining amount of the monitored object is displayed. Here, the monitored object is an object (including liquid and gas) that is consumed in conjunction with the operation of the work machine 3. In this embodiment, as an example, the monitored object includes fuel (e.g., diesel) for the engine 37. In other words, in the remaining amount display area R1, remaining amount information G1 relating to the remaining amount of fuel, which is the monitored object, is displayed.

[0071] The switching display area R2 is a rectangular area that is long in the horizontal direction. Display target information is displayed in the switching display area R2. Here, the display target information is information that is switchably selected from a plurality of pieces of information that include at least first information and second information related to the work machine 3. In the example of FIG. 4, coolant temperature information G3 and hydraulic oil temperature information G2 are displayed in the switching display area R2. The coolant temperature information G3 and hydraulic oil temperature information G2 are first information related to the work machine 3. In other words, the first display screen D11 shown in FIG. 4 is the display screen D1 in a state in which the first information (coolant temperature information G3 and hydraulic oil temperature information G2) is displayed in the switching display area R2 as display target information. The coolant temperature information G3 and hydraulic oil temperature information G2 are both information related to the work machine 3, and in particular information related to the operating state of the work machine 3.

[0072] The display target information displayed in the switching display area R2 is information that can be switchably selected from a plurality of pieces of information including the first information and the second information, and is not limited to the first information (cooling water temperature information G3 and hydraulic oil temperature information G2) described above. In other words, second information that is different from the first information and related to the work machine 3 can be displayed in place of the first information in the switching display area R2. In this embodiment, an example of the second information is an image of the surroundings of the work machine 3 captured by a camera. In this way, the display target information displayed in the switching display area R2 can be switched from a plurality of pieces of information including the first information and the second information, so that, for example, information that the user needs depending on the situation at that time can be displayed preferentially on the first display screen D11.

[0073] The third area R3 is a vertically long rectangular area. In the third area R3, an icon (icon) Im1 corresponding to the operating status of each part of the work machine 3 is displayed. Multiple icons Im1 can be displayed in the third area R3, and the design (picture) of each icon Im1 indicates which status it represents, for example, the battery, seat belt, coolant temperature, hydraulic oil temperature, etc. Here, each icon Im1 indicates its operating status by its display mode, such as display color or size. The display processing unit 13 determines the status of each part of the work machine 3 using the outputs of various sensors that detect the operating status of each part of the work machine 3. Then, if an abnormal value is detected in any part, the display processing unit 13 displays a warning by, for example, changing the display mode, such as the display color, of the icon Im1 for that part.

[0074] The fourth area R4 is a strip-shaped area extending across the entire width of the display screen D1. Various items for operating the display screen D1 are displayed in the fourth area R4. As an example, in FIG. 4, the fourth area R4 displays six items, "Menu," "Crane," "Mode," "Camera," "PTO," and "Switch," arranged in this order from left to right. These six items are associated with six pushbutton switches 221 to 226 of the operation unit 22 located directly below them. For example, the "Menu" item is associated with pushbutton switch 221, and the "Crane" item is associated with pushbutton switch 222. Therefore, for example, when the pushbutton switch 224 corresponding to the "Camera" item is operated by the user U1 (see FIG. 2), the "Camera" item is operated (selected).

[0075] Furthermore, in this embodiment, one of the items is highlighted in the fourth region R4 so as to correspond to the operation of the operation dial (or cursor keys) of the operation unit 22, etc. In the example of FIG. 4, the "Menu" item is highlighted, and the highlighted item changes by operating the operation dial (or cursor keys), etc. The user U1 can select the desired item by operating the confirm button while the desired item is highlighted. Therefore, for example, when the confirm button is operated while the highlight is moved to the "Camera" item, the "Camera" item is operated (selected). Furthermore, if the operation unit 22 includes a touch panel, the user U1 can select the desired item by touching the desired item on the display screen D1.

[0076] In the fifth region R5, when an abnormal value is detected in information relating to the operating state of the work machine 3, such as the coolant temperature or hydraulic oil temperature, presentation information (icon or the like) to indicate this (abnormality) is displayed. As an example, if the normal range for coolant temperature is defined as 30 degrees or more and less than 110 degrees, when the coolant temperature becomes less than 30 degrees or equal to or greater than 110 degrees, the display processing unit 13 detects an abnormal value for the coolant temperature and displays presentation information in the fifth region R5.

[0077] The sixth area R6 displays, for example, information relating to the working unit 31 currently in operation on the work machine 3. Specifically, information such as the operation pattern of the operating device 35 (operation levers 351, 352) for controlling the working unit 31 is displayed in the sixth area R6. The seventh area R7 displays, for example, information relating to the operating state of the work machine 3, such as the rotation speed of the engine 37. The eighth area R8 displays, for example, the current time. The ninth area R9 displays, for example, information indicating the item to which the currently displayed display screen D1 belongs. The tenth area R10 displays, for example, information relating to the operating time (hour meter) of the work machine 3.

[0078] In this embodiment, the first display screen D11 includes at least drive information related to the drive unit 34. In the example of Fig. 4, the drive information is arranged in the sixth region R6. In Fig. 4, an enlarged view of a portion of the sixth region R6 of the first display screen D11 is shown in a bubble.

[0079] That is, in this embodiment, as an example, the first display screen D11 includes three pieces of drive information C1, C2, and C3 in the sixth region R6. The drive information C1, C2, and C3 are each information related to the drive device 34. In the example of Fig. 4, these three pieces of drive information C1, C2, and C3 are arranged in the order of drive information C1, drive information C3, and drive information C2 from the right.

[0080] Here, the drive information C1 and drive information C2 located on both the left and right sides of the drive information C3 are assignment information that indicate the correspondence between the plurality of output ports 341 to 344 and the plurality of controls Sw1 to Sw4.

[0081] For example, in the case of drive information C1, an icon C11 including the letters "PTO1" representing the output port 341 and an icon C12 including the letter "4" representing the output port 344 are displayed together with the letter "R" representing the right operating lever 351. In other words, the drive information C1 indicates that the output ports 341 and 344 correspond to the controls Sw1 and Sw4 provided on the right operating lever 351. In particular, in the example of FIG. 4, the icon C11 is drawn as if it were placed in front of and overlapping with the icon C12. As a result, the drive information C1 indicates, as allocation information, that the output port 341 corresponds to the control Sw1 on the front side of the operating lever 351 and the output port 344 corresponds to the control Sw4 on the rear side of the operating lever 351.

[0082] On the other hand, for the drive information C2, an icon C21 including the letters "PTO2" representing the output port 342 and an icon C22 including the letter "3" representing the output port 343 are displayed together with the letter "L" representing the left operating lever 352. In other words, the drive information C2 indicates that the output ports 342 and 343 correspond to the controls Sw2 and Sw3 provided on the left operating lever 352. In particular, in the example of FIG. 4, the icon C21 is drawn as if it were placed in front of and overlapping with the icon C22. As a result, the drive information C2 indicates, as allocation information, that the output port 342 corresponds to the control Sw2 on the front side of the operating lever 352, and the output port 343 corresponds to the control Sw3 on the rear side of the operating lever 352.

[0083] Furthermore, the drive information C3 is attachment information that identifies the attachment 311 connected to the drive unit 34. In the work machine 3 according to this embodiment, multiple (for example, up to five) attachments 311 can be registered in advance. Then, in the work machine 3, the output (default value, etc.) of the drive unit 34 can be set in advance for each of the multiple registered attachments 311. In the example of FIG. 4, the drive information C3 displays the character "2" indicating the registration number of the attachment 311, along with an icon C31 indicating the type of attachment 311 (for example, an auger). In other words, the drive information C3 indicates that an attachment 311 of the type indicated by the icon C31 is connected to the drive unit 34.

[0084] In short, the display control system 1 according to this embodiment is used in a work machine 3 that includes a working unit 31 and a drive unit 34. The working unit 31 performs work by driving an attachment 311 that is attached to the body 30 of the work machine 3. The drive unit 34 supplies power to the attachment 311 to drive the attachment 311. The display control system 1 includes a display processing unit 13 that causes the display device 2 to display a first display screen D11 that includes drive information C1 to C3 related to the drive unit 34.

[0085] According to this configuration, information relating to the drive unit 34, which supplies power to the attachment 311 to drive the attachment 311, is displayed on the first display screen D11. This allows the user (operator) to visually confirm the operating state, etc. of the drive unit 34 when operating the work machine 3 to perform work, improving the operability of the work machine 3. For example, even an operator with a low level of skill can operate the work machine 3 accurately and smoothly while visually confirming the operating state, etc. of the drive unit 34, which is expected to improve the efficiency of work using the work machine 3. Therefore, the display control system 1 according to this embodiment has the advantage of making it easy to improve the operability of the work machine 3.

[0086] Furthermore, in this embodiment, as described above, the outputs of the multiple output ports 341-344 are controlled in response to operations on the operation device 35 having multiple controls Sw1-Sw4. The drive information C1 and C2 include allocation information that indicates the correspondence between the multiple output ports 341-344 and the multiple controls Sw1-Sw4. Therefore, the user can operate the controls Sw1-Sw4 that correspond to the desired output port 341-344 while referring to the allocation information displayed on the display device 2, making it easier to operate the operation device 35 even when there are multiple output ports 341-344.

[0087] Furthermore, in this embodiment, as described above, the drive information C3 includes attachment information that identifies the attachment 311 connected to the drive unit 34. Therefore, the user can operate the work machine 3 while referring to the attachment information displayed on the display device 2, improving the operability of the work machine 3. In particular, if the output (default value, etc.) of the drive unit 34 can be set in advance for each attachment 311, the user can understand the output setting status of the drive unit 34 from the attachment information. The attachment information may be determined automatically based on the output of a sensor or the like that detects the type of attachment 311, or may be manually input by the user.

[0088] In this embodiment, as shown in Fig. 5, various information related to the drive device 34 can be displayed in addition to the allocation information depending on the display mode of the drive information C1 and C2. Fig. 5 is an enlarged view of a part of the sixth region R6 of the first display screen D11, 、 and <c>Display examples for the three situations are shown in the speech bubble.

[0089] First, in Figure 5< / c> assumes a situation in which no attachment 311 is connected to the output port 342 of the drive device 34. In this case, in the drive information C2, the icon C21 representing the output port 342 is displayed in a light gray color to distinguish it from other icons such as C11. That is, on the first display screen D11, the connection status of the attachment 311 in the drive device 34 (output port 342) is displayed, for example, by the display mode (here, shading) of the icon C21. In other words, the drive information C1 and C2 include connection information representing the connection status of the attachment 311 in the drive device 34. This allows the user to visually confirm the connection status of the attachment 311 in the drive device 34 (output ports 341 to 344), making it less likely that an operation error will occur when operating the drive device 34.

[0090] Also, in Figure 5 assumes a situation in which the output ports 341 and 342 of the drive device 34 are in an "arbitrary hold" state due to the maintenance function. In this case, in the drive information C2, the icon C11 representing the output port 341 and the icon C21 representing the output port 342 are colored in a first color (e.g., yellow) corresponding to "arbitrary hold." That is, on the first display screen D11, for example, the operating status of the maintenance function for maintaining the output of the drive device 34 (output ports 341 and 342) is displayed by the display mode (here, display color) of the icon C11, etc. In other words, the display processing unit 13 displays the operating status of the maintenance function for maintaining the output of the drive device 34 on the first display screen D11. That is, the operating status of the maintenance function for maintaining the output of the drive device 34 is also included in the drive information C1 and C2, similar to the connection status of the attachment 311 to the drive device 34, etc. This allows the user to visually confirm the operating status of the maintenance function for maintaining the output of the drive device 34 (output ports 341 to 344), making it less likely that an erroneous operation such as unintentional disabling of the maintenance function will occur.

[0091] In particular, in this embodiment, the display processing unit 13 displays the operation status of the maintenance functions in the display mode of the drive information C1 and C2. Therefore, for example, the drive information C1 and C2 representing allocation information, etc., can also be used to display the operation status of the maintenance functions, and the amount of information displayed on the first display screen D11 can be reduced. As a result, a relatively simple screen configuration can be realized for the first display screen D11, leading to improved visibility for the user. Furthermore, the display mode of the drive information C1, C2, and C3 representing the operation status of the maintenance functions, etc., is not limited to the above-mentioned shading and display color, and may be, for example, display / non-display, line type, size, animation, etc., or a combination thereof.

[0092] Also, in Figure 5 <c>assumes a situation in which the output port 341 of the drive device 34 is in a "preset value hold" state and the output port 342 is in a "custom hold" state. In this case, in the drive information C2, the icon C11 representing the output port 341 is colored in a second color (e.g., red) corresponding to "preset value hold." That is, on the first display screen D11, for example, the operating state of the maintenance function (preset value hold / custom hold) is distinguished by the display mode (here, display color) of the icon C11 etc.

[0093] Furthermore, in Figure 5 <c>In the example of FIG. 5, the display processing unit 13 displays notification information C4 in addition to the drive information. The notification information C4 is displayed when the operation states of the plurality of output ports 341 to 344 correspond to a combination that is subject to notification, and is information that notifies that fact (that the combination is subject to notification). Here, the "combination that is subject to notification" refers to a specific combination that is preset for the combination of the operation states of the plurality of output ports 341 to 344, such as a combination in which the operation states of the maintenance functions are different. In the example of FIG. 5, the operation states (predetermined value hold / optional hold) of the maintenance functions of the output port 341 and the output port 342 are different, and therefore the display processing unit 13 determines that the operation states of the output ports 341 and 342 are a combination that is subject to notification. In this case, the notification information C4 includes, for example, text such as "PTO1-PTO2 settings are different." In short, in this embodiment, when the operation states of the plurality of output ports 341 to 344 are a combination to be notified, the display processing unit 13 includes in the drive information the notification information C4 relating to the operation states of the plurality of output ports 341 to 344. This makes it less likely that the user will make an erroneous operation when operating a combination of the plurality of output ports 341 to 344.

[0094] Incidentally, as shown in FIG. 6, the display processing unit 13 transitions the display screen D1 displayed on the display device 2 from the first display screen D11 to other screens (setting screens D12 to D14, etc.) in response to a user operation.

[0095] Here, as an example, in response to a start operation, first, the first display screen D11 is displayed on the display unit 21 of the display device 2. Then, while the first display screen D11 is displayed, if the "Menu" item is operated (selected) by operating the push button switch 221 corresponding to the "Menu" item, and then "PTO Flow Rate Setting" is selected, the setting screen D12 is displayed. If any of the items "Attachment 1" to "Attachment 5" is operated (selected) while the setting screen D12 is displayed, the setting screen D12 transitions to the setting screen D13. Furthermore, if the "Attachment" item is operated (selected) while the setting screen D13 is displayed, the setting screen D13 transitions to the setting screen D14. Furthermore, if the "Back" or "Confirm" item in the fourth area R4 is operated (selected) on the setting screens D13 and D14, the setting screen D13 transitions to the previous setting screen D12 and D13. However, the operations for transitioning the display screen D1, the order of transitions, and the like are not limited to the above example and can be changed as appropriate.

[0096] The hierarchical setting screens D12 to D14 allow the user to register multiple (for example, up to five) attachments 311 and set the output (default value, etc.) of the drive unit 34 for each of the registered attachments 311. Specifically, the user selects the registration number of any of the attachments 311 by operating the cursor item in the fourth area R4 on the setting screen D12. Then, the user sets the default value (maximum flow rate) for each of the output ports 341 to 344 ("PTO1" to "PTO4") individually on the setting screen D13 by operating the "+" or "-" item in the fourth area R4. Furthermore, when setting an icon for an attachment 311, the user selects the icon of any of the attachments 311 on the setting screen D14.

[0097] The output (default value, etc.) settings of the drive unit 34 for each attachment 311 registered in the setting screens D12 to D14 can be called up by selecting the attachment 311 on the first display screen D11. Specifically, as shown in FIG. 7, when the "PTO" item is operated (selected) by the user U1 operating the push button switch 225 corresponding to the "PTO" item while the first display screen D11 is displayed, the selected attachment 311 is switched. Here, as an example, as shown in the pop-up in FIG. 7, the icon C1 and registration number of the selected attachment 311 are displayed as drive information C3, and the selected attachment 311 is switched each time the "PTO" item is operated. Therefore, the user can check the current output (default value, etc.) settings of the drive unit 34 in the drive information C3 on the first display screen D11.

[0098] In this embodiment, as shown in FIG. 8, the display processing unit 13 has a function of displaying attachment information in a display mode corresponding to the drive characteristics of the drive device 34 of the attachment 311. That is, the drive characteristics of the drive device 34, for example, the frequently used maintenance functions, differ depending on the type of attachment 311. As an example, for attachments 311 such as crushers, mulchers, and tiltrotators, "arbitrary hold" is often used, while for attachments 311 capable of repeated operations such as breakers, dampers, and augers, "predetermined value hold" is often used. Therefore, the display processing unit 13 changes the display mode of the attachment information according to the respective drive characteristics. FIG. 8 is an enlarged view of a portion of the sixth region R6 of the first display screen D11,< / c> < / c> and Display examples for the above two situations are shown in the speech bubble.

[0099] Figure 8 This assumes a situation in which the output ports 341 and 342 of the drive unit 34 are in the "preset value hold" state due to the maintenance function, and an auger, which often uses "preset value hold," is selected as the attachment 311. In this case, in the drive information C2, the icon C11 representing the output port 341 and the icon C21 representing the output port 342 are colored in a second color (e.g., red) corresponding to "preset value hold." Furthermore, the icon C31 in the drive information C3 representing the attachment 311 is colored in a second color (e.g., red) corresponding to "preset value hold." This allows the user to visually confirm the relationship between the operating state of the drive unit 34 (operating state of the maintenance function) and the drive characteristics of the selected attachment 311, making it less likely that an erroneous operation will occur.

[0100] Also, in Figure 8 This assumes a situation in which the output ports 341, 342 of the drive device 34 are in the "optional hold" state, and an auger, which often uses "preset value hold," is selected as the attachment 311. In this case, in the drive information C2, the icon C11 representing the output port 341 and the icon C21 representing the output port 342 are colored a first color (e.g., yellow) corresponding to "optional hold." Meanwhile, the icon C31 in the drive information C3 representing the attachment 311 is colored a second color (e.g., red) corresponding to "preset value hold." This allows the user to visually confirm the relationship between the operating state of the drive device 34 (operating state of the maintenance function) and the drive characteristics of the selected attachment 311, making it less likely that an erroneous operation will occur.

[0101] Furthermore, in Figure 8 In the example shown in FIG. 8, the display processing unit 13 displays the warning information C5 in addition to the drive information. The warning information C5 is displayed when the operating state of the drive unit 34 and the drive characteristics of the attachment 311 correspond to a combination requiring caution, and is information informing the user of this (that the combination requires caution). Here, a "combination requiring caution" refers to a specific combination of the operating state of the drive unit 34 and the drive characteristics of the attachment 311 that is preset, such as a combination in which the operating states of the maintenance function are different. In the example shown in FIG. 8, the operating states of the maintenance function (predetermined value hold / optional hold) differ between the drive characteristics of the drive unit 34 and the attachment 311, and therefore the display processing unit 13 determines that the combination requires caution. In this case, the warning information C5 includes, for example, text such as "The attachment setting and the PTO hold setting are different." If the operating states of the maintenance function differ between the output port 341 and the output port 342, whether the combination requires caution is determined based on the operating state of the maintenance function of the output port 341 or 342 that is used more frequently during work.

[0102] In short, in this embodiment, the display processing unit 13 includes the warning information C5 in the drive information when the operating state of the drive device 34 and the drive characteristics of the drive device 34 of the attachment 311 connected to the drive device 34 are a combination that requires attention. This makes it easier for the user to operate the drive device 34 in accordance with the drive characteristics of the attachment 311, making it less likely that an erroneous operation will occur.

[0103] In this embodiment, as shown in FIG. 9 , a preset value can be set for the output of the drive device 34, and the drive information includes relative information C6 that represents the current output value of the drive device 34 relative to the preset value. In FIG. 9 , the relative information C6 includes a slider C61 and a bar graph C62, and the position of the slider C61 relative to the bar graph C62 represents the current output value of the drive device 34. That is, the horizontal length of the bar graph C62 represents the preset value, and the slider C61 moves horizontally on the bar graph C62 according to the current output value of the drive device 34, thereby representing the current output value of the drive device 34 relative to the preset value. For example, when the "adjustment operator" Sw1 is operated to increase the output of the output port 341, the slider C61 moves to the right. Conversely, when the output of the output port 341 decreases, the slider C61 moves to the left. Here, as an example, the relative information C6 is displayed as a pop-up on the first display screen D11.

[0104] In FIG. 9, it is assumed that the default value of the output port 341 is set to 80%, and the variation of the relative information C6 and is shown in the bubble. In the example, the length of the colored part of bar graph C62 is adjusted according to the specified value (80%), and In this example, the overall length of the bar graph C62 is adjusted according to the specified value (80%). Regardless of the relative information C6, the current output value of the drive unit 34 is expressed relative to the specified value depending on the position of the slider C61 relative to the bar graph C62.

[0105] 10 , the display processing unit 13 has a function of causing the display device 2 to display assignment setting screens D15 and D16, which allow the user to set the correspondence between the output ports 341 to 344 and the controls Sw1 to Sw4. The correspondence between the output ports 341 to 344 and the controls Sw1 to Sw4 set on the assignment setting screens D15 and D16 is reflected on the first display screen D11. This allows the user to visually check the correspondence between the output ports 341 to 344 and the controls Sw1 to Sw4 on the display device 2.

[0106] As an example, in Figure 10 The assignment setting screen D15 shown in FIG. 10 is a screen for setting the correspondence between a plurality of output ports 341, 342 and a plurality of controls Sw1, Sw2. That is, on the assignment setting screen D15, an arbitrary setting is selected from "PTO2-PTO1" and "PTO1-PTO2" by operating the cursor item in the fourth area R4. When the confirm item in the fourth area R4 is selected with "PTO1-PTO2" selected, the output port 341 (PTO1) is associated with the control lever Sw2 of the control lever 352, and the output port 342 (PTO2) is associated with the control lever Sw1 of the control lever 351. Similarly, in FIG. The allocation setting screen D16 shown in Fig. 15 is a screen for setting the correspondence between the multiple output ports 343, 344 and the multiple controls Sw3, Sw4. When the correspondence between the multiple output ports 341 to 344 and the multiple controls Sw1 to Sw4 is changed on the allocation setting screens D15, D16, the settings of the specified values ​​(flow rate limits) for the changed output ports 341 to 344 are initialized.

[0107] The setting screens D12 to D14 and the allocation setting screens D15 and D16 described above are all screens for making settings related to the drive device 34 and are types of "second display screens." In contrast, the first display screen D11 is a home screen and is a screen displayed before transitioning to the setting screens D12 to D14 or the allocation setting screens D15 and D16. In other words, the first display screen D11 is a screen separate from the second display screens (setting screens D12 to D14, allocation setting screens D15 and D16, etc.) for making settings related to the drive device 34.

[0108] [6.2] Overall processing Next, the overall flow of processing related to the display control method will be described with reference to Fig. 11. Fig. 11 is a flowchart showing an example of processing related to the display control method.

[0109] As shown in FIG. 11, the display processing unit 13 of the display control system 1 first displays on the display device 2 a first display screen D11 including drive information C1, C2, C3, etc. related to the drive device 34 (S1). Here, if the maintenance function is enabled (ON) for any of the multiple output ports 341 to 344 of the drive device 34, the display processing unit 13 displays the operation status of the maintenance function (arbitrary hold / predetermined value hold) on the first display screen D11 (S2). Specifically, the display processing unit 13 displays the operation status of the maintenance function in the display mode (e.g., display color) of the drive information C1 and C2. At this time, when the display processing unit 13 displays the operation status of the maintenance function, the display control system 1 uses data acquired by the data acquisition unit 11.

[0110] In this state, the display processing unit 13 determines whether or not there is a notification target for the combination of the operating states of the plurality of output ports 341 to 344 (S3). For example, if it is determined that there is a notification target because the operating states (predetermined value hold / arbitrary hold) of the maintenance function are different between output port 341 and output port 342 (S3: Yes), the display processing unit 13 displays notification information C4 (S4). On the other hand, if there is no notification target (S3: No), the display processing unit 13 skips step S4 and proceeds to step S5.

[0111] In process S5, the display processing unit 13 determines whether or not there is an item of caution for the combination of the operating state of the drive device 34 and the drive characteristics of the attachment 311. For example, if it is determined that there is an item of caution because the operating states (predetermined value hold / optional hold) of the maintenance function differ between the drive device 34 and the drive characteristics of the attachment 311 (S5: Yes), the display processing unit 13 displays warning information C5 (S6). On the other hand, if there is no item of caution (S5: No), the display processing unit 13 skips process S6 and proceeds to process S7.

[0112] The display processing unit 13 then monitors whether an operation to end the display of the first display screen D11, that is, an operation to stop the engine 37 of the work machine 3, is performed while the first display screen D11 is being displayed (S7). If an operation to end the display is not performed (S7: No), the display processing unit 13 returns to process S1 and continues displaying the first display screen D11. If an operation to end the display is performed (S7: Yes), the display processing unit 13 ends the series of processes.

[0113] However, the flowchart shown in FIG. 11 is merely an example, and processes may be added or omitted as appropriate, and the order of processes may be changed as appropriate.

[0114] [7] Variation Below, we will list some modified examples of embodiment 1. The modified examples explained below can be applied in appropriate combinations.

[0115] The display control system 1 in the present disclosure includes a computer system. The computer system mainly comprises one or more processors and one or more memories as hardware. The processor executes a program recorded in the memory of the computer system to realize the functions of the display control system 1 in the present disclosure. The program may be pre-recorded in the memory of the computer system, provided via a telecommunications line, or provided by being recorded on a non-transitory recording medium such as a memory card, optical disc, or hard disk drive that is readable by the computer system. In addition, some or all of the functional units included in the display control system 1 may be configured with electronic circuits.

[0116] Furthermore, it is not essential for the display control system 1 that at least some of the functions of the display system 10 are concentrated in one housing, and the components of the display system 10 may be distributed across multiple housings. Conversely, in the first embodiment, the functions of the display system 10 and the like that are distributed across multiple devices may be concentrated in one housing. Furthermore, at least some of the functions of the display control system 1 may be realized by the cloud (cloud computing) or the like.

[0117] Furthermore, the power source of the work machine 3 is not limited to a diesel engine, and may be, for example, an engine other than a diesel engine, or may be a motor (electric motor), or a hybrid power source including an engine and a motor (electric motor). When the power source includes an electric motor such as a motor, the power source is driven by consuming electrical energy stored in a battery in addition to or instead of fuel (diesel oil, gasoline, etc.). In this case, for example, the SOC (State Of Charge) or the like, which corresponds to the remaining capacity of the battery, may be displayed on the display screen D1 as remaining capacity information G1.

[0118] Furthermore, the drive device 34 is not limited to a device such as a PTO (power take-off) for extracting power from the engine 37 (as power for driving the attachment 311), but may also be a device that outputs power for driving the attachment 311, separate from the engine 37. Furthermore, the drive device 34 is not limited to a device that supplies power to the attachment 311 by supplying hydraulic oil, but may also be a device that generates power using, for example, an electric motor such as a motor. In this case, the power output from the drive device 34 is controlled, for example, by the current flowing through the drive device 34.

[0119] Furthermore, it is sufficient that the attachment 311 is attached to the machine body 30, and it is not essential that the attachment 311 be detachably attached to the machine body 30. Furthermore, multiple attachments 311 may be attached to the machine body 30 at the same time.

[0120] Furthermore, when displaying the operating status of the maintenance function that maintains the output of the drive device 34 on the first display screen D11, displaying the operating status of the maintenance function in the display mode of the drive information C1, C2 is not an essential configuration for the display control system 1. For example, the operating status of the maintenance function may be displayed by text such as "Optional hold in progress" or "Specified value hold in progress", or by an image (icon) representing "Optional hold" or "Specified value hold".

[0121] The display device 2 is not limited to a dedicated device, but may be a general-purpose terminal such as a laptop computer, a tablet terminal, or a smartphone. Furthermore, the display unit 21 is not limited to a mode that directly displays the display screen D1, such as a liquid crystal display or an organic EL display, but may be configured to display the display screen D1 by projection, such as a projector. The display area of ​​the display unit 21 is not limited to a horizontally long area, but may also be a vertically long area.

[0122] Furthermore, modes other than the push button switches 221 to 226, the touch panel, and the operation dial may be adopted as the mode of inputting information to the operation unit 22. For example, the operation unit 22 may adopt modes such as a keyboard, a pointing device such as a mouse, voice input, gesture input, or input of an operation signal from another terminal.

[0123] Furthermore, the first information displayed in the switching display area R2 is not limited to the coolant temperature information G3 and the hydraulic oil temperature information G2. For example, the first information may be only one of the coolant temperature information G3 and the hydraulic oil temperature information G2, or may include information about the working unit 31 in operation, such as that displayed in the sixth area R6.

[0124] (Embodiment 2) A display system 10A according to this embodiment differs from the display system 10 according to the first embodiment in that it is provided separately from the body 30 of the work machine 3A, as shown in Fig. 12. Hereinafter, the same components as those in the first embodiment will be assigned the same reference numerals and descriptions thereof will be omitted as appropriate.

[0125] In this embodiment, as an example, the work machine 3A operates by automatic driving (autonomous travel). Specifically, the work machine 3A includes a position detection unit that detects the position (latitude and longitude) of the machine body 30 using a satellite positioning system such as the Global Navigation Satellite System (GNSS), and an attitude detection unit that detects the attitude of the work machine 3A.

[0126] A display system 10A equipped with the display control system 1A and the display device 2A is realized by a tablet terminal or the like arranged outside the work machine 3A. In this embodiment, the display control system 1A is equipped with a communication unit 14. The machine body 30 of the work machine 3A is equipped with a machine body communication unit 38. The communication unit 14 and the machine body communication unit 38 are configured to be able to communicate with each other via a communication network N1 such as the Internet.

[0127] With this configuration, even if the display system 10A is provided separately from the machine body 30 of the work machine 3A, it is possible to display the same display screen D1 as in embodiment 1 on the display device 2A by communicating with the machine body 30.

[0128] As a modification of this embodiment, the work machine 3A is not limited to a configuration that operates by automatic driving, but may also be operated by remote control by a user (operator). In this case, the user remotely operates the work machine 3A while viewing the display screen D1 displayed on the display device 2A, for example.

[0129] The configuration according to the second embodiment (including modifications) can be adopted in appropriate combination with the various configurations (including modifications) described in the first embodiment.

[0130] <Notes on the invention> A work machine display control system according to one aspect of the present invention is used in a work machine that includes a working unit and a drive unit. The working unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment. The work machine display control system includes a display processing unit that causes a display device to display a first display screen that includes drive information related to the drive unit.

[0131] A work machine display system according to one aspect of the present invention includes the work machine display control system and the display device that displays the first display screen.

[0132] A work machine according to one aspect of the present invention includes the work machine display system and a machine body on which the display device is mounted.

[0133] A work machine display control method according to one aspect of the present invention is used in a work machine having a working unit and a drive unit, and includes displaying a first display screen including drive information related to the drive unit on a display device. The working unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment.

[0134] A work machine display control program according to one aspect of the present invention is used in a work machine having a working unit and a drive unit, and causes one or more processors to execute a program to cause a display device to display a first display screen including drive information related to the drive unit. The work unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment.

[0135] A work machine display control system according to another aspect of the present invention is used in a work machine that includes a working unit and a drive unit. The working unit performs work by driving an attachment attached to the body of the work machine. The drive unit supplies power to the attachment to drive the attachment. The work machine display control system includes a display processing unit that causes a display device to display a first display screen that includes icons corresponding to output ports that output power from the drive unit. The display processing unit changes the display mode of the icons when the operating state of the output port changes.

[0136] A work machine display system according to another aspect of the present invention includes the work machine display control system and the display device that displays the first display screen.

[0137] A work machine according to another aspect of the present invention includes the work machine display system and a machine body on which the display device is mounted.

[0138] A work machine display control method according to another aspect of the present invention is used in a work machine including a working unit and a drive unit, and includes displaying a first display screen on a display device, the first display screen including icons corresponding to output ports that output power from the drive unit, and changing the display mode of the icons when the operating state of the output port changes. The working unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment.

[0139] A work machine display control program according to another aspect of the present invention is used in a work machine including a working unit and a drive unit, and causes one or more processors to execute the following operations: displaying on a display device a first display screen including icons corresponding to output ports that output power from the drive unit; and changing the display mode of the icons when the operating state of the output port changes. The working unit performs work by driving an attachment attached to a body of the work machine. The drive unit supplies power to the attachment to drive the attachment. [Explanation of symbols]

[0140] 1,1A (for work machines) Display and control system 2,2A display device 3,3A Work Machine 10,10A (for work machines) display system 13 Display processing section 31 Working section 34 Drive unit 35 Operating device 311 Attachment 341~344 output ports C1~C3 driving information C4 Notification Information C5 Caution information C6 Relative Information D11 1st display screen D12~D14 Setting screen (second display screen) D15 Allocation setting screen (second display screen) Sw1~Sw4 Operators (Regulation Operators) Sw5 and Sw6 operators (maintenance operators)

Claims

1. a working unit that performs work by driving an attachment attached to a body of the work machine; a drive device that supplies power to the attachment to drive the attachment, a display processing unit that causes a display device to display a first display screen including drive information related to the drive device; The driving information includes setting information set by a user. Display and control system for work machines.

2. the setting information includes information regarding the flow rate of the driving device; The display control system for a work machine according to claim 1 .

3. The setting information includes an icon corresponding to the attachment.

3. A display control system for a work machine according to claim 1 or 2.

4. The setting information can be set for each of the plurality of attachments. The display control system for a work machine according to any one of claims 1 to 3.

5. The setting information applied to the drive device is switched in response to a user operation on the display device. The display control system for a work machine according to claim 4.

6. A work machine display control system according to any one of claims 1 to 5; the display device that displays the first display screen, Display system for work machines.

7. A work machine display system according to claim 6; The aircraft on which the display device is mounted. Work machinery.

8. a working unit that performs work by driving an attachment attached to a body of the work machine; a drive device that supplies power to the attachment to drive the attachment, displaying, on a display device, a first display screen including drive information related to the drive device; The driving information includes setting information set by a user. Display control method for a work machine.

9. a working unit that performs work by driving an attachment attached to a body of the work machine; a drive device that supplies power to the attachment to drive the attachment; used in the work machine, a display control program for a work machine that causes one or more processors to execute a process of displaying, on a display device, a first display screen including drive information related to the drive device, The driving information includes setting information set by a user. Display control program for work machines.

Images