Display system for work machines, work machine, and method for displaying work machines

Abstract

If a message window appears in the area displaying camera images around the work machine, ensure the image is displayed correctly. [Solution] The work machine display system 1 includes a display unit 11 that displays camera images taken around the hydraulic excavator, a display unit controller 20 that displays the camera images on the display unit 11, and a message window image generation unit 24 that generates a message window image indicating the content of an event when a predetermined event related to the hydraulic excavator occurs. The display unit controller 20 displays a message window image indicating the content of the event in the camera image area where the camera image is displayed when a predetermined event related to the hydraulic excavator occurs, and displays the camera image in a reduced size.

Description

Technical Field

[0001] The present disclosure relates to a display system for a work machine, a work machine, and a display method for a work machine.

Background Art

[0002] As shown in Patent Document 1, a work machine such as an excavator has a display unit in the cab that displays information related to the work machine such as the engine water temperature, the remaining fuel amount, and the operating time, or displays an image around the work machine.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When various events related to a work machine occur, a message related to the event may be displayed as a message window. The display area of the display unit is limited. When the message window is displayed overlapping the area where the camera image is displayed, the display content of the camera image may be hidden by the message window image. As a result, there is a possibility that information may not be properly transmitted to the operator.

Means for Solving the Problems

[0005] According to this disclosure, a display system for a work machine is provided, comprising: a display unit that displays a camera image taken of the area surrounding the work machine; a display control unit that causes the camera image to be displayed on the display unit; and a message window image generation unit that generates a message window image indicating the content of a predetermined event when a predetermined event relating to the work machine occurs, wherein the display control unit displays a message window image indicating the content of the event in the camera image area where the camera image is displayed, and displays the camera image in a reduced size.

[0006] In accordance with this disclosure, a work machine is provided that comprises the above-mentioned display system for the work machine and the work machine itself.

[0007] According to this disclosure, a method for displaying a work machine is provided, which includes generating a message window image to be displayed in a camera image area that displays a camera image taken of the area around the work machine when a predetermined event related to the work machine occurs, and displaying the camera image, and if the message window image is displayed in the camera image area, shrinking the camera image. [Effects of the Invention]

[0008] According to this disclosure, if a message window is displayed in the area that displays camera images around the work machine, the image can be displayed appropriately. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a block diagram showing a display system for a work machine according to an embodiment. [Figure 2] Figure 2 shows an example of the display on the display unit. [Figure 3] Figure 3 shows another example of the display on the display unit. [Figure 4] Figure 4 shows another example of the display on the display unit. [Figure 5]Figure 5 shows an example of how a single-camera image is displayed on the display unit. [Figure 6] Figure 6 shows another example of how a single-camera image is displayed on the display unit. [Figure 7] Figure 7 is a flowchart showing a display method for a work machine according to an embodiment. [Figure 8] Figure 8 is a block diagram showing a computer system according to an embodiment. [Modes for carrying out the invention]

[0010] The embodiments described below will be explained with reference to the drawings, but the disclosure is not limited thereto. The components of the embodiments described below can be combined as appropriate. In addition, some components may not be used.

[0011] [Embodiment] <Display system for industrial machinery> In this embodiment, we will describe the case where the work machine is a hydraulic excavator as an example. The hydraulic excavator comprises a work machine and a work machine display system 1. The work machine display system 1 comprises a display device 10 and a camera system 30.

[0012] The camera system 30 photographs the area around the hydraulic excavator. The camera system 30 is installed on the upper rotating body of the hydraulic excavator. The camera system 30 acquires images of the object to be photographed. The camera system 30 functions as a detection unit that detects objects, including people or other working machines such as other hydraulic excavators, that are present around the hydraulic excavator. Multiple camera systems 30 are arranged around the hydraulic excavator. In this embodiment, the camera system 30 includes cameras 31, 32, 33, and 34.

[0013] Camera 31 is, for example, a rear camera located at the rear of the upper rotating body 3. Camera 31 images the rear area of ​​the upper rotating body 3. Camera 32 is, for example, a right rear camera located at the right side of the upper rotating body 3. Camera 32 images the right rear area of ​​the upper rotating body 3. Camera 33 is, for example, a right front camera located at the right side of the upper rotating body 3. Camera 33 images the right front area of ​​the upper rotating body 3. Camera 34 is, for example, a left rear camera located at the left side of the upper rotating body 3. Camera 34 images the left rear area of ​​the upper rotating body 3. Each of cameras 31, 32, 33, and 34 has an optical system and an image sensor. The image sensor includes a CCD (Couple Charged Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.

[0014] Camera 34 captures images of the left lateral and left rear regions of the upper rotating body 3, but it may capture images of either one of these regions. Similarly, camera 32 captures images of the right lateral and right rear regions of the upper rotating body 3, but it may capture images of either one of these regions. Similarly, camera 33 captures images of the right front and right lateral regions of the upper rotating body 3, but it may capture images of either one of these regions. Furthermore, the camera system 30 captures images of the left rear, rear, right rear, and right front of the upper rotating body 3, but is not limited to these.

[0015] <Display device> The display device 10 is a monitor that displays images of the surroundings of a work machine. The display device 10 is, for example, a monitor for monitoring the surroundings. The display device 10 comprises a display unit 11 and a display unit controller 20, which is a display control unit. The display unit controller 20 may be a controller separate from the display device 10.

[0016] The display unit 11 displays a camera image or the like that has photographed the surroundings of the hydraulic excavator. The display unit 11 includes a flat panel display such as a liquid crystal display or an organic EL display (EL: Electro Luminescence). The display unit 11 may be a touch panel type.

[0017] The camera image includes one or both of an overhead camera image 101 of the surroundings of the hydraulic excavator and a single camera image 102. In the embodiment, the camera image is the overhead camera image 101 of the surroundings of the hydraulic excavator and the single camera image 102.

[0018] The overhead camera image 101 is an image generated by converting and synthesizing a plurality of image data acquired by each of the camera systems 30 into an overhead viewpoint of the hydraulic excavator. In the overhead camera image 101, an image of the hydraulic excavator viewed from above is displayed at the center.

[0019] The single camera image 102 is an image of a part of the surroundings of the hydraulic excavator acquired by one of the camera systems 30. The single camera image 102 includes at least one of a rear single camera image showing the situation behind the hydraulic excavator acquired by the camera 31, a right rear single camera image showing the situation in the right rear of the hydraulic excavator acquired by the camera 32, a right front single camera image showing the situation in the right front of the hydraulic excavator acquired by the camera 33, and a left rear single camera image showing the situation in the left rear of the hydraulic excavator acquired by the camera 34.

[0020] <Display unit controller> The display unit controller 20 includes a computer system. The display unit controller 20 has an interface unit 21, a single camera image generation unit 22, an overhead camera image generation unit 23, a message window image generation unit 24, a gauge image generation unit 25, and an image output unit 29.

[0021] The interface unit 21 communicates with other hardware provided by the hydraulic excavator. In this embodiment, the interface unit 21 acquires image data from the camera system 30. The interface unit 21 is connected to each of the cameras 31, 32, 33, and 34 of the camera system 30. In this embodiment, the interface unit 21 acquires image data from camera 31 showing the situation behind the hydraulic excavator. The interface unit 21 acquires image data from camera 32 showing the situation to the right rear of the hydraulic excavator. The interface unit 21 acquires image data from camera 33 showing the situation to the right front of the hydraulic excavator. The interface unit 21 acquires image data from camera 34 showing the situation to the left rear of the hydraulic excavator.

[0022] The interface unit 21 acquires information from the work machine's controller indicating the detection of an abnormality in the work machine. The interface unit 21 acquires information from the work machine's controller indicating the occurrence of an event. The interface unit 21 acquires information from the work machine's controller indicating engine water temperature, fuel level, operating time, etc.

[0023] The single-camera image generation unit 22 generates a single-camera image 102 showing the surrounding conditions of the hydraulic excavator based on the image data acquired by the interface unit 21. More specifically, the single-camera image generation unit 22 generates the single-camera image 102 based on image data acquired by one of the cameras in the camera system 30.

[0024] The overhead camera image generation unit 23 generates an overhead camera image 101 showing the surroundings of the hydraulic excavator based on the image data acquired by the interface unit 21. More specifically, the overhead camera image generation unit 23 generates an overhead camera image 101 of the surroundings of the hydraulic excavator based on the image data acquired by each of the camera systems 30. The overhead camera image generation unit 23 converts the image data acquired by cameras 31, 32, 33, and 34 into overhead view images viewed from a virtual viewpoint above the hydraulic excavator. The overhead camera image generation unit 23 extracts portions from each overhead view image corresponding to the frame area for displaying the overhead camera image 101. The overhead camera image generation unit 23 synthesizes the overhead view images to generate an overhead camera image 101 of the surroundings of the hydraulic excavator.

[0025] The message window image generation unit 24 generates a message window image 104 to be displayed in the camera image area that displays camera images taken around the hydraulic excavator when a predetermined event related to the hydraulic excavator occurs.

[0026] Message window image 104 may, for example, show guidance to the operator. Message window image 104 may, for example, show a malfunction in the hydraulic excavator.

[0027] The gauge image generation unit 25 generates an image showing gauge information indicating the status of the hydraulic excavator. More specifically, the gauge image generation unit 25 generates a gauge image 103 showing gauge information indicating the status of the hydraulic excavator in the single-camera image 102 area where the single-camera image 102 is displayed, based on the operator's instructions.

[0028] Gauge image 103 is an image showing gauge information indicating the status of the hydraulic excavator. Gauge image 103 is an image of gauges that show, for example, engine water temperature, fuel level, operating time, etc.

[0029] The image output unit 29 causes the display unit 11 to display display data showing the surrounding conditions of the hydraulic excavator. The display data includes a camera image, a message window image 104, and a gauge image 103. In this embodiment, the image output unit 29 causes the display unit 11 to display at least an overhead camera image 101 and a single camera image 102 of the surrounding area of ​​the hydraulic excavator.

[0030] The image output unit 29 displays the camera image taken around the hydraulic excavator on the display unit 11. If a message window is displayed in the camera image area of ​​the display unit 11, the image output unit 29 reduces the size of the camera image and displays it on the display unit 11.

[0031] In this embodiment, the image output unit 29 may determine the ratio by which to reduce the camera image to match the area of ​​the message window image 104 displayed on the display unit 11. When the message window image 104 is not displayed, the image output unit 29 displays a camera image on the display unit 11 that has been reduced to the same shape and size as the area where the message window image 104 is displayed, excluding the area where the message window image 104 is displayed.

[0032] In this embodiment, the image output unit 29 may reduce the size of the single camera image 102 and display it on the display unit 11 if a message window is displayed in the camera image area. More specifically, the image output unit 29 may reduce the size of the single camera image 102 and display it on the display unit 11 if a message window is displayed in the single camera image 102 area.

[0033] In this embodiment, the image output unit 29 may reduce the size of the single camera image 102 and display it on the display unit 11 if a message window or gauge information is displayed in the camera image area. More specifically, the image output unit 29 may reduce the size of the single camera image 102 and display it on the display unit 11 if a message window or gauge information is displayed in the single camera image 102 area.

[0034] In this embodiment, if the message window image 104 contains guidance for the operator, the image output unit 29 may, after a predetermined period of time has elapsed since displaying the message window image 104, release the reduction of the single camera image 102 and display it on the display unit 11.

[0035] In this embodiment, if the message window image 104 indicates an abnormality in the hydraulic excavator, the image output unit 29 may stop displaying the message window image 104 and release the reduction of the single camera image 102 to display it on the display unit 11 when the abnormality is resolved.

[0036] The image output unit 29 displays a message window image 104 in the camera image area that captures the area around the hydraulic excavator when a predetermined event related to the hydraulic excavator occurs.

[0037] The specified events related to the hydraulic excavator include, for example, the detection of various abnormalities in the hydraulic excavator, or the detection of a condition requiring guidance to the operator.

[0038] The image output unit 29 displays a gauge image 103 showing gauge information indicating the status of the hydraulic excavator in the single-camera image area 102, according to the operator's instructions.

[0039] Figure 2 shows an example of the display on the display unit. Figure 2 shows an example of the display on the display unit 11 in its normal state, where the message window image 104 (see Figure 3) is not displayed. In the example shown in Figure 2, the display unit 11 displays an overhead camera image 101, a single camera image 102, a gauge image 103, an upper image 111, a side image 112, and a lower image 113. The upper image 111, side image 112, and lower image 113 display information such as the operating status of the hydraulic excavator using icon images.

[0040] Figure 3 shows another example of the display unit. In the example shown in Figure 3, the message window image 104 is displayed above the area where the single camera image 102 is displayed in Figure 2. The single camera image 102 is displayed in a reduced size. As shown in Figure 2, when the message window image 104 is not displayed, the single camera image 102 is reduced to fit the area where the single camera image 102 is displayed, excluding the area where the message window image 104 is displayed as shown in Figure 3.

[0041] Figure 4 shows another example of the display unit. In the example shown in Figure 4, the gauge image 105 is displayed to the right of the area where the single camera image 102 is displayed in Figure 2. The single camera image 102 is displayed in a reduced size. As shown in Figure 2, when the gauge image 105 is not displayed, the single camera image 102 is reduced to fit the area where the single camera image 102 is displayed, excluding the area where the gauge image 105 is displayed as shown in Figure 4.

[0042] In the examples shown in Figures 2 to 4, the gauge image 103 is always displayed below the single-camera image 102. As shown in Figures 5 and 6, the gauge image 103 may be displayed when the operator performs a swipe operation to display the gauge image 103. Figure 5 is a diagram showing an example of how the single-camera image 102 is displayed on the display unit. Figure 6 is a diagram showing another example of how the single-camera image 102 is displayed on the display unit. Figures 5 and 6 show only the lower part of the display unit 11. In the example shown in Figure 5, a guide image 106 is displayed to guide the swipe operation to display the gauge image 103. The guide image 106 guides the operator to perform a swipe operation along the arrow that points from bottom to top. When the operator performs a swipe operation along the guide image 106, the gauge image 103 is displayed as shown in Figure 6. The guide image 106 does not have to be displayed.

[0043] <Display method> Figure 7 is a flowchart illustrating the display method for a work machine according to an embodiment. When the hydraulic excavator is turned on, the work machine display system 1 is activated. When the work machine display system 1 is activated, the camera system 30 continuously takes pictures.

[0044] The display controller 20 acquires camera images captured by the camera system 30 via the interface unit 21 (step ST11). The display controller 20 acquires image data from each of the cameras 31, 32, 33, and 34 of the camera system 30 via the interface unit 21.

[0045] The display controller 20 generates a single-camera image 102 using the single-camera image generation unit 22 (step ST12). The display controller 20 generates a single-camera image 102 using the single-camera image generation unit 22 based on image data acquired by one of the cameras in the camera system 30. The display controller 20 displays the generated single-camera image 102 on the display unit 11 using the image output unit 29.

[0046] The display controller 20 generates an overhead camera image 101 using the overhead camera image generation unit 23 (step ST13). The display controller 20 generates an overhead camera image 101 of the area around the hydraulic excavator using the overhead camera image generation unit 23 based on the image data acquired by each of the camera systems 30. The display controller 20 displays the generated overhead camera image 101 on the display unit 11 using the image output unit 29.

[0047] The display unit controller 20 determines whether an event has occurred or whether a gauge display instruction has been issued (step ST14). If the display unit controller 20 determines that an event has occurred or a gauge display instruction has been issued (Yes in step ST14), it proceeds to step ST15. If the display unit controller 20 determines that no event has occurred and no gauge display instruction has been issued (No in step ST14), it repeats the process in step ST14.

[0048] The display controller 20 reduces the size of the single camera image 102 (step ST15). The display controller 20, using the image output unit 29, displays the camera image on the display unit 11, which has been reduced to the same shape and size as the area where the camera image is displayed, excluding the area where the message window image 104 is displayed, when the message window image 104 is not displayed.

[0049] The display unit controller 20 determines whether a predetermined period has elapsed or whether the message window or gauge display has been canceled (step ST16). The display unit controller 20 determines whether a predetermined period has elapsed since the message window image 104 was displayed by the image output unit 29. The display unit controller 20 determines whether an operation to cancel the display of the message window image 104, the display of the gauge image 103, or the display of the gauge image 105 has been performed on the operation unit such as the operation button or operation menu displayed on the display unit 11. If the predetermined period has elapsed or the display of the message window image 104, gauge image 103, or gauge image 105 has been canceled (Yes in step ST16), the display unit controller 20 proceeds to step ST17. If the predetermined period has not elapsed and the display of the message window image 104, gauge image 103, and gauge image 105 has not been canceled (No in step ST16), the display unit controller 20 repeats the process in step ST16.

[0050] If a predetermined period of time has elapsed, or if the display of the message window image 104, gauge image 103, or gauge image 105 is canceled (Yes in step ST16), the display unit controller 20 stops reducing the single camera image 102 (step ST17).

[0051] By repeatedly executing the above process while the work machine's display system 1 is running, an image including the camera image is displayed on the hydraulic excavator's display device 10.

[0052] <Computer System> Figure 8 is a block diagram showing a computer system 1000 according to an embodiment. The display controller 20 described above includes the computer system 1000. The computer system 1000 includes a processor 1001 such as a CPU (Central Processing Unit), a main memory 1002 including non-volatile memory such as ROM (Read Only Memory) and volatile memory such as RAM (Random Access Memory), a storage 1003, and an interface 1004 including input / output circuits. The functions of the display controller 20 described above are stored in the storage 1003 as a computer program. The processor 1001 reads the computer program from the storage 1003, loads it into the main memory 1002, and executes the above-described processing according to the computer program. The computer program may be distributed to the computer system 1000 via a network.

[0053] The computer program or computer system 1000 can, in accordance with the above-described embodiment, generate a message window image 104 to be displayed in the camera image area of ​​the area surrounding the hydraulic excavator when a predetermined event related to the hydraulic excavator occurs, and display the camera image of the area surrounding the hydraulic excavator, and if a message window is displayed in the camera image area, reduce the size of the camera image.

[0054] <Effects> As described above, in this embodiment, when a predetermined event related to the hydraulic excavator occurs, a message window image 104 indicating the content of the event is displayed in the camera image area where the camera image is displayed, and the camera image is reduced in size for display. In this way, according to this embodiment, when the message window image 104 is displayed in the camera image area around the hydraulic excavator, the image can be displayed appropriately without cropping a part of the camera image. This embodiment can appropriately convey information to the operator.

[0055] In this embodiment, when a message window image 104 is displayed in the camera image area, the percentage by which the camera image is reduced is determined to match the area of ​​the message window image 104.

[0056] In this embodiment, when the message window image 104 is displayed in the camera image area, the single camera image 102 is scaled down for display. In this embodiment, the overhead camera image 101 is not scaled down, so a display that makes it easy to check the area around the hydraulic excavator can be maintained.

[0057] In this embodiment, when a message window image 104, a gauge image 103, or a gauge image 105 is displayed in the single-camera image 102 area, the single-camera image 102 is reduced in size for display. According to this embodiment, when a message window image 104, a gauge image 103, or a gauge image 105 is displayed in the single-camera image 102 area, the images can be displayed appropriately without cropping out parts of the overhead camera image 101 and the single-camera image 102.

[0058] In this embodiment, after a predetermined period of time has elapsed since the message window image 104 was displayed, the display of the message window image 104 is stopped and the reduction of the single camera image 102 is released. According to this embodiment, when the need to display the message window image 104 decreases, the display of the message window image 104 can be stopped and the single camera image 102 can be returned to its original size. According to this embodiment, the reduction and release of the reduction of the single camera image 102 can be appropriately controlled.

[0059] In this embodiment, if the message window image 104 indicates an abnormality in the hydraulic excavator, when the abnormality is resolved, the display of the message window image 104 is stopped and the reduction of the single camera image 102 is released. According to this embodiment, when the abnormality is resolved, the display of the message window image 104 can be stopped and the single camera image 102 can be returned to its original size. According to this embodiment, the reduction and release of the single camera image 102 can be appropriately controlled.

[0060] In the above-described embodiment, the hydraulic excavator may be a mining hydraulic excavator used in mines, or a hydraulic excavator used at construction sites. It can also be applied to display systems for dump trucks, wheel loaders, and other work machines.

[0061] [Differentiation] The reduction of the single camera image 102 may be changed depending on whether or not objects, including people or other working machines such as hydraulic excavators, are displayed in the camera image around the hydraulic excavator. The display controller 20 further includes a determination unit.

[0062] The determination unit determines from the camera image whether or not there are objects, including people or other working machines such as other hydraulic excavators, present around the hydraulic excavator. In the normal display state, where the message window, gauge image 103, or gauge image 105 is overlaid directly on the camera image, the determination unit determines whether or not an object is displayed in the area where the message window, gauge image 103, or gauge image 105 is displayed. More specifically, the determination unit determines whether or not there are objects around the hydraulic excavator based on image data acquired by the interface unit 21. The determination unit determines the presence or absence of people around the hydraulic excavator by image processing the image data acquired by the interface unit 21. The image processing includes the process of extracting feature quantities of objects from the image data. The determination unit compares the feature quantities extracted from the image data with the feature quantities of objects stored in the feature quantity storage unit to determine whether or not an object exists in the area where the message window, gauge image 103, or gauge image 105 is displayed.

[0063] If the display controller 20 determines that a message window, gauge image 103, or gauge image 105 is displayed in the single camera image 102 area, and that an object is displayed in the area where the message window, gauge image 103, or gauge image 105 is displayed, it reduces the size of the single camera image 102 and displays it. If the display controller 20 determines that no object is displayed in the area where the message window, gauge image 103, or gauge image 105 is displayed, it maintains the size of the single camera image 102 and overlays the message window, gauge image 103, or gauge image 105 onto the single camera image 102 area.

[0064] <Effects> According to the modified version, a message window image 104, a gauge image 103, or a gauge image 105 is displayed in the area of ​​the single camera image 102, and if it is determined that an object is displayed in the area where the message window image 104, gauge image 103, or gauge image 105 is displayed, the single camera image 102 is scaled down for display. According to the modified version, the single camera image 102 can be appropriately scaled down.

[0065] [Differentiation] In the above-described embodiment, the display controller 20 may display the message window image 104, gauge image 103, or gauge image 105 in the overhead camera image 101 area, and reduce the size of the overhead camera image 101 area for display. In this case, the message window image 104, gauge image 103, or gauge image 105 can be displayed in the camera image area without reducing the size of the single camera image 102. [Explanation of Symbols]

[0066] 1...Display system, 10...Display device, 11...Display unit, 20...Display unit controller (display control unit), 21...Interface unit, 22...Single camera image generation unit, 23...Overhead camera image generation unit, 24...Message window image generation unit, 25...Gauge image generation unit, 29...Image output unit, 30...Camera system, 31...Camera, 32...Camera, 33...Camera, 34...Camera, 101...Overhead camera image 101 area, 102...Single camera image, 103...Gauge image, 104...Message window image, 105...Gauge image.

Claims

1. A display unit that shows camera images taken around the work machine, A display control unit that displays the camera image on a display unit, A message window image generation unit generates a message window image showing the content of the event when a predetermined event related to the aforementioned work machine occurs, Equipped with, When a predetermined event related to the work machine occurs, the display control unit displays a message window image indicating the content of the event in the camera image area where the camera image is displayed, and displays the camera image in a reduced size. A display system for industrial machinery.

2. The display control unit determines the ratio by which to reduce the camera image to match the area of ​​the displayed message window image. A display system for a work machine according to claim 1.

3. The aforementioned camera images are overhead camera images and single-camera images of the surrounding area of ​​the work machine. When the message window image is displayed in the camera image area, the display control unit reduces the size of the single camera image and displays it. A display system for a work machine according to claim 1.

4. A gauge image generation unit generates a gauge image indicating the status of the work machine in the single-camera image area where the single-camera image is displayed, based on the operator's instructions. Equipped with, When the message window image or the gauge image is displayed in the single camera image area, the display control unit reduces the size of the single camera image and displays it. A display system for a work machine according to claim 3.

5. A determination unit that determines from the camera image whether or not there are objects, including people or other work machines, present around the work machine. Equipped with, The determination unit determines whether or not the object is displayed in the area where the message window image or the gauge image is displayed. The display control unit, when it determines that the message window image or the gauge image is displayed in the single-camera image area and that the object is displayed in the area where the message window image or the gauge image is displayed, reduces the size of the single-camera image and displays it. A display system for a work machine according to claim 4.

6. If the message window image contains guidance for the operator, the display control unit stops displaying the message window image and cancels the reduction of the single-camera image after a predetermined period of time has elapsed since displaying the message window image. A display system for a work machine according to claim 3.

7. If the message window image indicates an abnormality in the work machine, the display control unit stops displaying the message window image and releases the reduction of the single-camera image when the abnormality in the work machine is resolved. A display system for a work machine according to claim 3.

8. A display system for a work machine according to any one of claims 1 to 4, Work equipment and A work machine equipped with the following features.

9. When a predetermined event related to the work machine occurs, a message window image is generated to be displayed in the camera image area that displays the camera image taken around the work machine, When the camera image is displayed and the message window image is displayed in the camera image area, the camera image is reduced in size. A method for displaying work machinery, including the equipment mentioned.

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