CN1721629A - Display device for construction machinery - Google Patents

Abstract

To provide a monitor in a cab of a construction machine for statically displaying a water temperature meter and a fuel level meter while selectively setting regions to be displayed in other regions.A screen part 13A of the construction machine is provided as a static display region where a region B in which the water temperature meter is displayed and a region C in which the fuel level meter is displayed are statically displayed. However, a region A in which an oil temperature meter is normally displayed is provided as a variable display region where information to be displayed is selectively set. A region D provided on the upper parts of the regions A, B, C is provided as a variable display region which is further divided into a plurality of regions corresponding to the amount of the information to be displayed.

Description

Display device for construction machinery

technical field

The present invention relates to a display device, which is arranged in the cab of engineering machinery such as hydraulic excavator.

Background technique

For example, when a construction machine such as a hydraulic excavator is in operation, a hydraulic pump is driven by an engine, and pressure oil output from the hydraulic pump is supplied to a hydraulic cylinder or a hydraulic motor mounted on each working part. An operator seated in the cab operates an operating member such as an operating lever to cause the respective working parts to perform operations such as excavation of earth and sand.

Various measuring instruments are installed in the cab of construction machinery to allow operators to observe the working conditions of construction machinery. As the content displayed by these various gauges, there are, for example, a water temperature gauge for cooling water, an oil temperature gauge for working oil, a fuel remaining gauge, an engine tachometer, and the like. In addition, it is also possible to properly display the timer for indicating the working time of the construction machinery, and information on whether the door lock lever is in the normal position, etc.

As mentioned above, various information related to construction machinery is comprehensively displayed on monitors such as LCD screens. From the viewpoint of securing the view of the operator, it is desirable that the shape of such a monitor be as compact as possible. Therefore, when using a monitor with a limited display area, since all the above-mentioned information cannot be displayed for easy viewing, the operator must appropriately select and display necessary information within the display area. Especially in recent years, construction machinery tends to be multi-functional, and the information to be displayed increases accordingly, so it is necessary to make a reasonable selection of the information to be displayed in a limited display area. Here, the mechanical state screen displayed in the normal state includes: the temperature of the cooling water (hereinafter referred to as the water temperature gauge), the oil temperature gauge of the working oil (hereinafter referred to as the oil temperature gauge), and the fuel remaining gauge (hereinafter referred to as the Fuel remaining gauge) and other information, when other information is to be displayed, the screen needs to be switched for display.

However, the above-mentioned water temperature gauge, oil temperature gauge and fuel remaining gauge are displayed in an analog form, that is, the inclination angle of the gauge changes according to the value, and should be displayed in a larger display area. Here, the display necessity of the water temperature gauge and the fuel level gauge is high, and the display necessity of the oil temperature gauge is low compared with these two kinds of information.

Therefore, if other information can be displayed in the area where the oil temperature gauge is displayed, an area where new information can be displayed can be created, so this area can be effectively used. The situation of prior art is: when battery voltage, engine hydraulic pressure, working oil temperature etc. become abnormal value, show warning sign in the area of this display oil temperature gauge (for example, refer to Japanese Patent Application Laid-Open Publication 2002-121776 Number).

Contents of the invention

However, as various information that can be displayed on the above-mentioned monitor, there are, for example, information on measuring instruments such as a water temperature gauge, an oil temperature gauge, and a fuel remaining level gauge. The information on measuring instruments also includes: the remaining amount of cooling water (hereinafter It is called the cooling water level), the remaining amount of engine oil (hereinafter referred to as the engine oil level), the remaining amount of the battery (hereinafter referred to as the battery power), and the engine speed. In addition, there are screen information such as the rear monitor and the excavation position screen, clock and timer, time information such as the use time of the attachment, information on whether the protection function has been opened, and additional information such as information on the type of the attachment, etc. In addition, there are various information such as function information, which includes: such as ML (Moment Limiter) function, which can usually limit the hanging load and prevent the construction machinery used for excavation from overturning; the anti-collision function, when used In the case of offset construction machinery, it prevents the front working machine from colliding with the cab; the communication function, it is used to communicate with the management company that manages the construction machinery; the setting function, it is used to perform various settings, etc.

Therefore, since a variety of construction machine-related information is displayed on the monitor, it is necessary to select some information from the various information and display it on a monitor having a limited display area. At this time, if a fixed display area is set in the display, the information that must be displayed, such as the water temperature gauge and the fuel remaining gauge, etc. are fixed in this area, and in other areas, it can be freely selected according to the operation situation. The information to be displayed can be freely configured according to the preferences of the operator, which can improve the conditions for the operator to observe and improve the work efficiency.

However, in the above-mentioned invention of Japanese Patent Application Laid-Open Publication No. 2002-121776, although other information can be displayed in the region where the oil temperature gauge is displayed, only predetermined information can be displayed as the information. For example, in the invention of Japanese Patent Application Laid-Open Publication No. 2002-121776, only predetermined information such as a warning sign displayed when the state of the construction machine changes can be displayed as the information.

Therefore, even if the oil temperature gauge can be replaced to display other information, it can only display predetermined information, which has little effect in terms of smoothness of operation, efficiency, safety, and the like.

Therefore, it is an object of the present invention to provide a display device for a construction machine that can freely select information to be displayed in an area other than a fixed display area on a monitor of the construction machine.

The construction machinery display device of the present invention is arranged in the cab of the construction machinery, and includes: a screen part, which is mainly used to display a machine state picture, and the machine state picture contains the information of the above-mentioned measuring instruments of the construction machine; a button part, which has multiple The buttons are used to perform the display setting operation of the screen displayed on the above-mentioned screen part; the display control part is used to perform the display control of the above-mentioned screen part. The above-mentioned screen part is divided into a plurality of areas, and one or more of the divided areas are used as fixed display areas to display predetermined information; other areas are used as variable display areas to display variable information. The information selected from the information input to the display control unit generates a display screen on the screen unit.

According to the present invention, by displaying arbitrary information in the variable display area of the screen portion of the monitor installed in the cab of the construction machine according to the purpose of the work and the preferences of the operator, etc., the workability can be improved, and the smoothness of the work can be ensured. safety.

Description of drawings

Figure 1 is the overall structure diagram of construction machinery.

Fig. 2 is a schematic diagram of the interior of the cab.

Fig. 3 is a configuration diagram of a monitor.

Fig. 4 is a schematic configuration diagram of a display control device.

FIG. 5 is a flowchart showing a processing flow of a display control method.

FIG. 6 is a screen view of the first setting screen.

FIG. 7 is a screen view of a second setting screen.

FIG. 8 is a screen view of a first setting screen in Embodiment 1. FIG.

FIG. 9 is a screen view of a second setting screen of Embodiment 1. FIG.

FIG. 10 is a screen view of a first setting screen in Embodiment 1. FIG.

FIG. 11 is a screen view of a monitor after setting in Embodiment 1. FIG.

FIG. 12 is a screen view of the first setting screen of the second embodiment.

FIG. 13 is a screen view of a second setting screen of Embodiment 2. FIG.

FIG. 14 is a screen view of a monitor after setting in Embodiment 2. FIG.

FIG. 15 is a screen view of a monitor after setting in Embodiment 3. FIG.

Detailed ways

Embodiments of the present invention will be described below. FIG. 1 shows a hydraulic excavator as an example of construction machinery to which this embodiment is applied. The construction machinery of this embodiment roughly includes: a crawler-type lower moving body 1, an upper rotating body 2, and a front working machine 3 having an excavation device and the like. . In addition, a cab 4 is provided on the upper revolving body 2, and an operator rides in it to operate the machine, and an operating device including an operating lever for operating the lower movement is provided inside the cab 4. The movement of the body 1, the rotation of the upper rotating body 2, and the actions of the boom 3a, the arm 3b, and the bucket 3c, etc., among which the boom 3a, the arm 36, and the bucket 3c constitute the front end for excavating soil and sand. Work machine 3.

In addition, a monitoring camera 10 is installed on the counterweight 5 at the rear of the upper rotating body 2 of the construction machinery to ensure a rear view; to confirm the mining status. In addition, an antenna 12a is provided on the upper portion of the cab 4 for communication with the outside.

As shown in FIG. 2 , a monitor 13 is installed inside the cab 4 , and by displaying various information on the monitor 13 , the operator can be informed of various information. Generally, in construction machines used for excavation work, especially hydraulic excavators, it is necessary to make the monitor 13 compact in order to secure a sufficient field of view for excavation work. As shown in FIG. 2, such a monitor 13 is mounted on a column 7, for example.

Next, the monitor 13 will be described. Monitor 13 is made of liquid crystal screen etc., and as shown in Figure 3, it comprises: screen part 13A, it is used to display various information; operator) to operate. Moreover, the screen portion 13A is divided into a plurality of display areas, and in the example shown in FIG. 3 , it is divided into: a first display area FA having areas A, B, C, and D; The first display area FA occupies most of the screen portion 13A, and the second display area SA is formed as a narrow strip-shaped area in the lower portion of the screen portion 13A, and the narrow strip-shaped area is divided into a plurality of areas. As shown in FIG. 3 , the second display area SA is equally divided into seven areas, and each of the equally divided areas is formed as area forming portions IF1 to IF7 . On the other hand, the first display area FA is divided into four areas A, B, C and D. In the first display area FA, the areas A, B, C and D are divided into upper and lower parts. In the area FA, the area other than the area D is divided into three equal parts, and each divided area is formed into areas A, B, and C, respectively.

These areas A, B, and C are basically areas for displaying an oil temperature gauge, a water temperature gauge, and a fuel level gauge, and area D is an area where arbitrary information can be displayed. As a result, the first display area FA is divided into upper and lower parts from areas A, B, and C, respectively. Because in areas A, B, and C, the water temperature gauge, oil temperature gauge, and fuel remaining gauge are displayed as analog The form, that is, the inclination angle of the instrument changes according to the value, so the areas A, B and C must have a certain size for the operator to observe.

Here, among the display areas A, B, and C, the areas B and C are set as fixed display areas for fixedly displaying the water temperature gauge and the fuel remaining level gauge. Here, the fixed display area refers to an area where display information cannot be set on the machine status screen as shown in FIG. 3 . That is, since certain information is always displayed in the fixed display area of the machine status screen, the displayed information cannot be freely selected. However, in other screens other than the machine status screen, such as the first and second setting screens described below, other information is displayed in the fixed display area. On the other hand, although the oil temperature gauge is basically displayed in the region A, since the region A is set as a variable display region, the operator can freely choose to display the information set by him in the variable display region. Here, information that can be displayed in the variable display area should be information that can be acquired by the display control device 20 described below. In addition, although the area D usually displays clocks and timers, this area D is also set as a variable display area so that the information to be displayed can be freely selected.

In addition, in order to normally display two kinds of information of a clock and a timer, the area D is further divided into two areas of a divided area D1 and a divided area D2. And when other information is to be displayed in the area D besides the display of the clock and timer, the area D can be divided corresponding to the number of information to be displayed.

The button part 13B is a button operated by an operator, and as shown in FIG. 3, there are nine buttons -- F1 to F9 -- in this embodiment. That is, the buttons F1 to F7 are arranged in a row immediately below the screen portion 13A, and the buttons F8 and F9 are arranged in a row immediately below the buttons F1 to F7. Among these buttons, the button F8 is a button for activating the function of performing an initial setting, and the button F9 is a button for projecting an image taken to ensure rearward visibility of the construction machine.

On the other hand, buttons F1 to F7 are respectively provided corresponding to the area forming portions IF1 to IF7 located immediately above these buttons F1 to F7. Here, icons for screen operations are displayed on the area forming portions IF1 to IF7. For example, in FIG. 3, the "arrangement setting" icon IC7 displayed in the area forming part IF7 is an icon for calling a setting screen in which information displayed on the screen part 13A is selected and determined. configuration. By pressing the buttons F1 to F7 located immediately below the icons displayed in the area forming portions IF1 to IF7, the operator can perform operations defined by the icons. In the present embodiment, since the second display area SA is divided into seven areas, seven different icons IC can be displayed simultaneously.

In FIG. 3 , the second display area SA is divided into seven area forming portions IF1 to IF7, and F1 to F7 are provided correspondingly immediately below these area forming portions IF1 to IF7, but the present invention is not limited thereto. The second display area SA can be divided into any number of areas. However, if the number of partitioned areas is small, there are also few types of icons for operation. On the other hand, if the number of divided areas is large, the number of icons that can be displayed increases and complex operations can be performed, but the number of increase buttons corresponding to the number of areas also increases, which may cause the operator to press the button that he does not want to press. button. That is, when the operator is an operator, since the operator of the construction machine usually wears gloves to operate, if many buttons are set on the small monitor 13, the operator will press the adjacent button by mistake, so it is not suitable Too many buttons. In this embodiment, the second display area SA is divided into seven area forming parts IF1 to IF7 from the above viewpoint, and buttons F1 to F7 are provided corresponding to these area forming parts IF1 to IF7, but the present invention is not limited to this.

Furthermore, the monitor 13 of this embodiment is provided with a display control device 20 for controlling the display of the screen portion 13A. This display control device 20 is a control device for controlling what kind of information is displayed in each display area of the screen portion 13A. Since some of the information displayed on the screen portion 13A is displayed in a variable display area, the information displayed on a variable The information on the display area is acquired by a sensor, a detector, or the like connected to the display control device 20 . As shown in Figure 4, through the bus 30, the display control device 20 of the present embodiment is connected with a ROM (Read Only Memory) 21, a CPU (Central Processing Unit) 22, a RAM (Read Access Memory) 23, and a button input control unit 24 , a screen unit output control unit 25 , a vehicle body communication unit 26 , a display screen generation unit 27 , an item setting information storage unit 28 , and a setting screen storage unit 29 . Moreover, a cooling water sensor 41 , a working oil sensor 42 , a fuel level sensor 43 , an engine oil sensor 44 , an engine speed sensor 45 and a battery level sensor 46 are also connected to the bus 30 . The cooling water sensor 41 sends the cooling water temperature and water quantity information; the working oil sensor 42 sends the working oil temperature and oil quantity information; the fuel remaining sensor 43 sends the fuel remaining information; the engine oil sensor 44 sends the engine oil remaining information The engine speed information is sent by the engine speed sensor 45; the battery remaining level information is sent by the battery remaining level sensor 46; they respectively continuously send their respective information to the display control device 20 as digital data. In addition, construction machines are provided with various sensors, detectors, and the like in addition to the sensors described above.

ROM21 is a storage device for storing the program for display control in this embodiment; CPU22 is a processing device for running the program stored in ROM21; RAM23 is a storage device for use as a work area when the program is running. The button input control section 24 is a control section that outputs commands to the CPU 22 when the buttons F1 to F7 are pressed. The screen section output control section 25 is a control section for controlling the screen displayed on the screen section 13A. The vehicle body communication unit 26 controls the transmission and reception of information between the information recording device 51, the engine control device 52, the hydraulic control device 53 and the display control device 20 through the vehicle network 60, wherein the information recording device 51 stores engine and hydraulic pressure information. The engine control device 52 controls the rotational speed of the engine and the like, and the hydraulic control device performs, for example, control of a solenoid valve and the like. The display screen generating unit 27 is used to generate the layout of the screen displayed on the screen unit 13A (including display of scales, pointers, numerals, characters, etc.) according to the contents set by the operator. The item setting information storage unit 28 is used to store setting contents such as information such as whether to display item by item and in which area to display. The setting screen storage unit 29 stores first and second setting screens for display setting.

Next, display control in this embodiment will be described with reference to the flowchart in FIG. 5 . First, as shown in FIG. 3, basically, in the first display area of the screen portion 13A, area A displays the oil temperature gauge; area B displays the water temperature gauge; area C displays the fuel remaining gauge; and the divided area D1 of area D displays Clock; the division area D2 displays the timer. Furthermore, an icon IC7 for performing screen setting is displayed on the area forming portion IF7 of the second display area SA.

In the monitor 13 displayed as above, first, the operator presses the button F7 located immediately below the icon IC7 (step S1). When the button F7 is pressed, the command signal is output to the CPU 22, and the CPU 22 reads out the first setting screen shown in FIG. The first setting screen is displayed on the screen portion 13A (step S2).

In the first setting screen in FIG. 6 , a screen for selecting items to be displayed in the setting is displayed in the first display area FA. The "display item" is an item to be displayed and set by the operator, the "whether to display" indicates whether to display each item, and the "display position" indicates in which area of the screen portion 13A each item is displayed. Here, as shown in Fig. 6, there are two additional items in addition to the three items of oil temperature gauge, clock, and timer. That is, area B and area C are set as fixed display areas, which respectively fixedly display the water temperature gauge and the remaining fuel level, and area A and area D are set as variable display areas for the operator to freely select the information to be displayed. Therefore, As the items that can be set in Fig. 6, there are basically an oil temperature gauge displayed in area A, a clock and a timer displayed in area D, etc. Since the water temperature gauge and the fuel level gauge are displayed in the fixed display area, they It is not a target of the setting item. If no special settings are made, set the oil temperature gauge to be displayed in area A. That is, since three types of information, the water temperature gauge, the oil temperature gauge, and the fuel level gauge, are basically required to be displayed as gauges, the oil temperature gauge is set to be displayed in area A in the initial setting. In addition, since the setting of the oil temperature gauge is of high importance, the item of area A is set at the top on the first setting screen.

Here, as additional items, there are, for example, the amount of cooling water detected by the cooling water sensor 41, the amount of operating oil detected by the operating oil sensor 42, the amount of engine oil detected by the engine oil sensor 44, and the amount of engine oil detected by the engine speed sensor 45. The detected rotational speed of the engine, the remaining battery level detected by the battery level sensor 46 , and the like. In addition, when a sensor for detecting fuel consumption or a sensor for detecting brake hydraulic pressure is provided, detection values of these sensors may be provided as additional items. That is, any item can be set as a candidate for an additional item as long as it is information that can be input to the display control device 20 .

Then, the operator selects an item to be set from the first setting screen. The selection of this item is performed with the cursor (the position where the background is slashed in FIG. 6 ). Here, as shown in FIG. 6 , on the area forming part IF4 of the 2nd display area SA, "up" icon IC4 is displayed; on IF5, "down" icon IC5 is displayed; on IF6, "change, icon IC6" is displayed; Show " confirmation " icon IC7 on IF7. Wherein, " upper " icon IC4 represents that cursor is moved upward; " down " icon IC5 represents that cursor is moved downward; " icon IC7 is used to confirm all the settings and return to the screen reflecting the setting contents.

The operator can move the cursor to the position of the object item to be set by pressing the button F4 or F5 immediately below the icon IC4 or IC5 (step S3), and can confirm the operation by pressing the button F6 at the position of the item. The object item to be set (step S4).

After the command signal of pressing the button F6 is input to the CPU 22, the CPU 22 reads out the second setting screen from the setting screen storage part 29, controls the screen part output control part 25, and displays the second setting screen on the screen part 13A (step S5). In the second setting screen, "whether to display" indicates whether or not to display the target item to be set, and "display position" indicates whether to display on either the area A or the area D.

On such a second setting screen, the operator decides whether to display the selected item and its display area. At this time, in the second setting screen, the "left" icon IC2 is displayed on the area forming part IF2 of the second display area SA; the "right" icon IC3 is displayed on IF3; the "up" icon IC4 is displayed on IF4; Display the "Down" icon IC5 on IF5; display the "Change" icon IC6 on IF6; display the "Back" icon IC7 on IF7. Among them, the icons IC2 to IC5 indicate moving the cursor to the left, right, up and down respectively; the icon IC6 is used to confirm the setting content in the second setting screen; the icon IC7 is used to not confirm the setting in the second setting screen. Set the content and return to the first setting screen.

The operator can move the cursor by pressing the buttons F2 to F5 immediately below the icons IC2 to IC5 to set "whether to display" and "display position" respectively, and confirm the setting content by pressing the button F6 (step S6 ).

At this time, when the command signal of pressing the button F6 is input to the CPU 22 , the CPU 22 stores the setting contents of “whether to display” and “display area” of each set item in the item setting information storage unit 29 .

Then, the CPU 22 reads out the first setting screen from the setting screen storage unit 29, controls the screen unit output control unit 26, and displays the first setting screen on the screen unit 13A (step S7). When the operator also needs to set "whether to display" and "display area" for other items, the operation after step S3 is continued. On the other hand, if setting of other items is not to be performed, the button F7 is pressed (step S9). When the button F7 is pressed, the CPU 22 instructs the display screen forming unit 27 to generate a screen layout to be displayed on the screen unit 13A. The display screen forming unit 27 generates a screen layout displayed on the screen unit 13A based on the setting contents of each item stored in the item setting information storage unit 28, and controls the screen unit output control unit 27 to display the layout of the screen unit 13A. . At this time, when the oil temperature gauge is displayed not in the area A but in the area D, the display area is reduced, so the display is reduced, and a screen converted into, for example, a digital form or a bar form is generated. Also, when a clock or a timer is displayed in the area A instead of the area D, the display area is enlarged so that the display is enlarged, and when the clock is displayed, a screen converted into an analog form is generated.

As described above, in the present embodiment, the oil temperature gauge may be directly displayed in the region A where the oil temperature gauge is normally displayed, or another item may be displayed instead of the oil temperature gauge. In addition, in addition to areas A, B, or C that display gauges such as an oil temperature gauge, a water temperature gauge, or a fuel level gauge, the items displayed in area D can also be freely set. This item is not limited to information such as a clock or a timer, as long as it is information that can be obtained by the display control device 20. Therefore, even if a new device is added to the device that the current construction machine has, it can also be obtained by using the device. The information of is output to the display control device 20 and displayed in the region A using the region where the oil temperature gauge is displayed.

In this embodiment, the button F7 is used when switching from the machine state screen to the first setting screen, but it can also be designed in this way: for example, when the menu button F8 is pressed, the machine state screen is switched to the first setting screen , In this way, in the machine status screen, the second display area SA can also be assigned to areas A, B, and C, or set as a new area for displaying other information. That is, in the machine state screen, by pressing the button F7 corresponding to the "arrangement setting" icon IC7 displayed on the area forming part D7 of the second display area SA, the machine state screen is switched to the first setting screen, but For example, if the menu button F8 is given the function of "transition from the machine status screen to the first setting screen", it is not necessary to display icons in the second display area SA, so the second display area SA can be assigned to areas A, B, C, where additional information can also be displayed.

In addition, although an oil temperature gauge, a clock, a timer, and two other additional items are provided as selectable items, more items may be provided. In this way, by setting a plurality of items, the range of choices that can be displayed in the area A is also expanded for the operator.

In addition, although the area B and the area C are set as fixed display areas, and the water temperature gauge and the fuel remaining gauge are fixedly displayed respectively, it is also possible to display the water temperature gauge or the fuel remaining gauge without displaying the water temperature gauge or the fuel remaining gauge. It is set as a variable display area, and the display setting can be freely set by the operator.

In addition, although area A is set as a variable display area, and area B and area C are set as fixed display areas, it is also possible to set any two areas in area A, B, or area C as fixed display areas, It is used to fixedly display the water temperature gauge and the fuel gauge, and set the remaining 1 area as a variable display area.

In addition, although the screen portion 13A is divided into four regions A, B, C, and D, the shapes of these four regions are not necessarily fixed, and may be freely expandable and contractible.

In addition, although the buttons F1 to F7 are arranged immediately below the area forming parts IF1 to IF7 so that the icons IC1 to IC7 displayed in the area forming parts IF1 to IF7 correspond to the buttons F1 to F7, if the operator can easily If the corresponding relationship between icons IC1 to IC7 and buttons F1 to F7 is properly grasped, the buttons may be placed at any position on the monitor 13 such as immediately above the screen portion 13A or near the left and right sides.

Example 1

Next, Example 1 will be described. In this embodiment, four items can be selected, namely, an oil temperature gauge, an engine tachometer, a fuel consumption rate, and an add-on timer. Among them, the fuel consumption rate shows the state of the current fuel consumption rate of the construction machine, and the attachment timer displays the use time of the attachment. In this embodiment, in order to display the fuel consumption rate and the add-on device timer, means for obtaining fuel consumption rate information and means for obtaining the installation time of the add-on device are added to the vehicle body network 60 .

In addition, the area D is divided into four areas of divided areas D1 , D2 , D3 , and D4 . In this embodiment, the divided areas D1 and D2 are fixedly displaying a clock and a timer, and the three areas of the area A and the divided areas D3 and D4 are used as optional areas. Also, it is set that the oil temperature gauge is displayed in the area A, and nothing is displayed in the divided areas D3 and D4.

In this embodiment, the operator sets the oil temperature gauge to the non-display state; the engine tachometer is displayed in the area A; the add-on timer is displayed in the divided area D3; and the fuel consumption rate is displayed in the divided area D4.

First, on the screen shown in FIG. 3 , when the button F7 located immediately below the “configuration setting” icon IC7 is pressed, the first setting screen shown in FIG. 8 is displayed. Since the oil temperature gauge is set to a non-display state, the operator can move the cursor to the item of the oil temperature gauge by pressing the button F4 immediately below the "up" icon IC4, or the button F5 immediately below the "down" icon IC5 , confirm the item by pressing the button F6 located immediately below the "Change" icon IC6.

After the button F6 is pressed, the second setting screen (step S5) as shown in Figure 9 is displayed. In order to set the oil temperature gauge to the non-display state, the operator can press the button F2 corresponding to the "left" icon 1C2, or the button F3 corresponding to the "right" icon IC3 to move the cursor to "whether display" is "no Therefore, the oil temperature gauge is set to a non-display state. Therefore, regarding the "display position", the background slash of the cursor can be canceled so that the cursor cannot be moved to the item "display position". In this state, when the button F6 located immediately below the “Change” icon IC6 is pressed, information of “not displayed” is stored in the item setting information storage unit 28 for the item of oil temperature gauge.

Then, since the screen is switched from the second setting screen to the first setting screen, the operator performs the same operation to set, so that the tachometer of the engine is displayed in area A; the additional device timer is displayed in the divided area D3; The fuel consumption rate is displayed in the divided area D4. When these items are set, display information such as "the engine tachometer is displayed in area A", "additional device timer is displayed in the divided area D3", and "the fuel consumption rate is displayed in the divided area D4" is stored in the item In the setting information storage unit 28.

After completing all the items, in the first setting screen, press the button F7 immediately below the "confirmation" icon IC7, at this time, the display screen generation part 27 reads out the display of each item from the item setting information storage part 28. The following layout is generated: the engine tachometer is displayed in area A; the additional device timer is displayed in the divided area D3; the fuel consumption rate is displayed in the divided area D4. At this time, as the fixed display areas, the divided area D1 and the divided area D2 of the area B and area C are respectively set to fixedly display the water temperature gauge, the fuel remaining gauge, the clock, and the timer, so they should be combined with these fixed display areas. The screen layout displayed in the first display area FA of the screen unit 13A is generated, and the screen unit output control unit 25 is controlled to display the screen layout as shown in FIG. 11 .

According to the above content, although in this embodiment, the area B, the area C, the divided area D1 and the divided area D2 are set as fixed display areas, they respectively fixedly display the water temperature gauge, the fuel remaining gauge, the clock and the timer, but, Since the area A, the divided area D3, and the divided area D4 are set as variable display areas which can be arbitrarily set by the operator, items displayed in these areas can be freely set. Therefore, if the rotation speed of the engine is important to the operator, the rotation speed of the engine is displayed in the area A having a certain size, thereby making the rotation speed of the engine easy to observe. In addition, by displaying the attachment timer and the fuel consumption rate in the area D, the operator can grasp the use time of the attachment device and the current fuel consumption rate of the construction machine.

Example 2

Next, Example 2 will be described. In this embodiment, the clock and the timer are not fixedly displayed in the divided area D1 of the area D, and the timer is fixedly displayed in the divided area D2, but the area for displaying the clock and the timer can be freely selected by the operator. Also, a clock that is normally displayed in digital form in area D is displayed in analog form when displayed in area A. In addition, the oil temperature gauge, which is normally displayed in an analog form of the change in the gauge tilt angle in accordance with the value measured by the operating oil temperature gauge 42 in the region A, is displayed in a bar graph when displayed in the region D.

In this embodiment, the operator makes the following settings: display the clock in area A; display the additional device timer in area D1; display the timer in the divided area D2; display the excavation timer in the divided area D3; An oil temperature gauge is displayed in the divided area D4. Here, the so-called excavation timer refers to the time during which the construction machinery is engaged in excavation work, and it is used to measure the installation time of the bucket as an additional device.

In this embodiment, in the screen shown in FIG. 3 , the operator presses the button F7 located immediately below the "configuration setting" icon IC7 to switch the screen to the first setting screen. As shown in Figure 12, set in the first setting screen so that the oil temperature gauge is displayed in the divided area D4; the clock is displayed in the area A; the timer is displayed in the divided area D2; the additional device timer is displayed in the In the divided area D1; the excavation timer is displayed in the divided area D3.

In order to perform the settings as above, on the first and second setting screens, press the buttons F2 to F7 to set each item. Then, after the setting of one item is completed, the setting content is stored in the item setting information storage unit 28 . Here, since all four divisions D1, D2, D3, and D4 of the area D in this embodiment can be set, the display position can be selected from five areas as shown in FIG. 13 . At this time, the area that has been selected by other items can also be made unselectable. For example, if the clock is displayed in the selected area A, the cursor A can not be moved to the area A when setting other items on the second setting screen. Alternatively, the cursor may be moved to the selected area, but a message "Error" may be displayed to notify the operator when the button F6 for confirming the setting content is pressed.

Moreover, after the display setting of all items is completed, the operator presses the button F7 on the first setting screen to confirm. Part 28 reads out relevant information, generates a layout displayed on the screen part 13A, controls the screen part output control part 25, and makes it display according to the generated screen layout, and displays the screen shown in Figure 14 on the screen part. on 13A. At this time, when the display screen generator 27 generates the screen, it displays the clock not in digital form but in an analog form that is easy for the operator to observe on the area A with a certain size; The oil temperature gauge is not displayed in an analog form of a change in the tilt angle of the gauge, but is displayed in, for example, a bar as shown in FIG. 14 . At this time, the oil temperature gauge may also be displayed in a digital form instead of a bar display. What is important is to display in a form that can be displayed on the smaller divided area D4.

In Embodiment 1 and this embodiment, the tachometer of the engine, the fuel consumption rate, the additional device timer and the excavation timer are listed as additional items, but it is not limited thereto. A timer for the installation time of the crusher, etc. In addition, the remaining workable time of the construction machine can also be calculated from the remaining fuel gauge 43 and the device for detecting the fuel consumption rate, and this time can be used as an additional item.

In addition, information related to functions of the construction machine may be displayed as an additional item. This feature includes ML features. Construction machinery is usually used for excavation work, but if the attachment is replaced by a bucket with a hook, it can be used for lifting work. When this lifting operation is performed, in order to prevent the construction machine from falling over, it is necessary to display the rated load as the lifting load limit and the actual load as the actual load. The information on the rated load and the actual load may be displayed as an additional item in the area A or area D which is a variable display area.

In addition, the above functions also include the anti-collision function. When using offset construction machinery, in order to avoid the front working machine from colliding with the cab, it is necessary to set the working range of the front working machine. Since necessary information must be displayed for setting at this time, these information may be displayed in the area A or area D which is a variable display area.

In addition, information on the use of the mail function and the setting function for various settings can also be set as additional items and displayed in the area A or area D as the variable display area. The above-mentioned mail function is used for managing projects. The management of machinery communicates with the enterprise.

Example 3

Next, Example 3 will be described. The control performed in the present embodiment is to display the monitoring camera 10 for securing the rear view or the camera 11 for checking the excavation state on the screen portion 13A.

In this embodiment, choose to display the image of the camera 10 or camera 11 in the area A; display the clock in the divided area D1; display the timer in the divided area D2; display the excavation timer in the divided area D3; The oil temperature gauge is displayed in D4. After selecting all the items, on the first setting screen, the operator presses the button F7 to confirm the setting. contents to generate a screen layout displayed on the screen unit 13A.

At this time, since the image of the camera 10 or 11 must be displayed in a large area, the areas A, B, and C are made into one area E in this embodiment. At this time, since the area E is one area formed by the areas A, B, and C, the water temperature gauge and the fuel remaining gauge must be displayed in the area E. However, since the imaging area of the camera 10 or 11 is preferably as small as possible, as shown in FIG. The size of the area E3 is created to be the minimum observable by the operator, and the part other than the areas E2 and E3 is created as the area E1, which corresponds to the imaging area of the camera 10 or 11.

In this embodiment, although the water temperature gauge is displayed in the area E2, and the fuel remaining gauge is displayed in the area E3, it is not limited to this. water temperature gauge. What is important is that the control is performed so that most of the area E is divided into an area for displaying images from the camera 10 or 11 and an area for displaying a water temperature gauge and a fuel level gauge.

Claims (5)

1. the display unit of an engineering machinery, it is arranged in the driver's cabin of engineering machinery, comprising: screen section, it is mainly used in and shows the machine performance picture, contains the information of the metrical instrument class of above-mentioned engineering machinery in this machine performance picture; Button portion has a plurality of buttons, and these buttons are used to carry out the display setting operation of picture displayed on above-mentioned screen section; Display control unit is used to carry out the demonstration control of above-mentioned screen section, it is characterized in that,

Above-mentioned screen section is split into a plurality of zones, and one or more zones in the above-mentioned a plurality of zones that are split to form are shown predetermined information as fixed display area; Other zone is shown the information that can select as variable viewing area from the information that is input to above-mentioned display control unit, in above-mentioned screen section, generate display frame thus.

2. the display unit of construction implement as claimed in claim 1 is characterized in that,

In the said fixing viewing area, show the water-thermometer of reflection engine cooling water temperature and in the fuel oil surplus table any one at least, or show above-mentioned water-thermometer and above-mentioned fuel oil surplus table two kind of information.

3. the display unit of construction implement as claimed in claim 1 is characterized in that,

In above-mentioned variable viewing area, show a kind or multiple information in the information that is input to above-mentioned display control unit.

4. the display unit of construction implement as claimed in claim 1 is characterized in that,

Above-mentioned screen section is split into the 1st fixed display area, the 2nd fixed display area, the 1st variable viewing area and the 2nd variable viewing area, the above-mentioned the 1st variable viewing area, above-mentioned the 1st fixed display area and above-mentioned the 2nd fixed display area are by variable viewing area is upper and lower separates with the above-mentioned the 2nd, bottom in above-mentioned the 2nd variable viewing area, the above-mentioned the 1st variable viewing area, above-mentioned the 1st fixed display area and above-mentioned the 2nd fixed display area are divided into 3 equal portions

Show water-thermometer in above-mentioned the 1st fixed display area, show fuel oil surplus table in above-mentioned the 2nd fixed display area.

5. the display unit of construction implement as claimed in claim 4 is characterized in that,

The above-mentioned the 2nd variable viewing area further is divided into a plurality of zones, and the information that selection arbitrarily will show can be distinguished as variable viewing area in these a plurality of zones that are split to form.

Images