JP4817620B2 - Construction machine display device - Google Patents

Description

  The present invention relates to a display device disposed in a cab of a construction machine such as a hydraulic excavator.

  For example, a construction machine such as a hydraulic excavator is configured such that a hydraulic pump is driven by an engine, and pressure oil output from the hydraulic pump is supplied to hydraulic cylinders and hydraulic motors attached to respective operating parts. Each of these operating parts is operated by an operator such as an operating lever when an operator gets on the driver's cab and performs operations such as excavation of earth and sand.

  Various instruments are provided in the operator's cab of the construction machine so that the operator can visually recognize the operation status of the construction machine. Examples of display by such instruments include a cooling water temperature gauge, a hydraulic oil temperature gauge, a fuel fuel gauge, an engine speed meter, and the like. In addition, an hour meter indicating the time during which the construction machine is operating, information on whether or not the gate lock lever is in a proper position, and the like can be displayed as appropriate.

  As described above, various types of information related to construction machines are collectively displayed on a monitor such as a liquid crystal display. By the way, it is preferable that the shape of such a monitor is as compact as possible from the viewpoint of securing the field of view of the operator. Therefore, when using a monitor having such a limited display area, it is not possible to display all the above-mentioned information in an easy-to-see manner. Therefore, the operator selects and displays necessary information as appropriate within this display area. There is a need. In particular, since construction machines in recent years tend to be multifunctional, information to be displayed follows an increasing trend, and thus information to be displayed in a limited display area must be selected appropriately. Here, at normal times, information such as the temperature of the cooling water (hereinafter referred to as a water temperature gauge), the oil temperature gauge for hydraulic oil (hereinafter referred to as an oil temperature gauge), the fuel fuel gauge (hereinafter referred to as a fuel fuel gauge), etc. Is displayed, and when other information is displayed, this screen is switched and displayed.

  By the way, the water temperature gauge, the oil temperature gauge, and the fuel fuel gauge described above are displayed in an analog format in which the inclination angle of the gauge changes according to the value, and are displayed in a relatively large display area. Here, although the necessity of display is high for the water temperature gauge and the fuel fuel gauge, the necessity of display of the oil temperature gauge is low compared to these two types of information.

Therefore, if other information can be displayed in the area where the oil thermometer is displayed, a new area for displaying information is created, and this area can be used effectively. In this way, instead of the region where the oil temperature gauge is displayed, it is conventionally known that a caution mark is displayed when battery voltage, engine oil pressure, hydraulic oil temperature, etc. become abnormal values (for example, (See Patent Document 1).
JP 2002-121776 A

  By the way, as various kinds of information that can be displayed on the monitor as described above, for example, there are information as instruments such as a water temperature gauge, an oil temperature gauge, a fuel fuel gauge, etc. There are a remaining amount of cooling water (hereinafter referred to as “cooling water level”), a remaining amount of engine oil (hereinafter referred to as “engine oil level”), a remaining amount of battery (hereinafter referred to as “battery level”), an engine speed, and the like. In addition, image information such as back monitor and excavation position image, time information such as clock, hour meter, attachment usage time, information on whether security function is ON, attachment type information, etc. There is additional information. Furthermore, for example, an ML (Moment Limiter) function for limiting the suspended load to prevent the construction machine normally used for excavation work from falling, and the front work machine when using the offset type construction machine. Various functions such as interference prevention function to prevent collision with cab, mail function used when communicating with management company managing construction machinery, function information such as setting function for performing various settings, etc. There is information.

  As described above, since there is a variety of information regarding the construction machine to be displayed on the monitor, it is necessary to select and display information to be displayed on the monitor having a limited display area from these various types of information. At this time, the monitor is provided with an area for fixedly displaying information that needs to be displayed, such as a water temperature gauge or a fuel fuel gauge, and information to be displayed in other areas can be freely selected according to work, Furthermore, if the information to be displayed can be freely arranged according to the preference of the operator, the visibility of the operator is increased and the efficiency of the work is improved.

  However, in the invention of Patent Document 1 described above, other information can be displayed in the region where the oil temperature gauge is displayed, but only predetermined information can be displayed as this information. For example, in the invention of Patent Document 1, as this information, only predetermined information such as a caution mark displayed when a change occurs in the state of the construction machine can be displayed.

  In this way, even if other information can be displayed instead of the oil thermometer, only predetermined information can be displayed, which means that work is smooth, efficient, safe, etc. Is not preferable.

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

A display device for a construction machine according to the present invention is provided in a cab of a construction machine, and is mainly displayed on a screen unit for displaying a machine state screen having information on the instruments of the construction machine, and displayed on the screen unit. A button unit having a plurality of buttons for performing display setting operation of the screen; and a display control unit for performing display control of the screen unit, wherein the screen unit includes the machine state screen and the machine state screen. In the machine status screen, the screen section is divided into a plurality of areas, and one to a plurality of areas among the plurality of divided areas are determined in advance. As a fixed display area for displaying the displayed information, a screen to be displayed on the screen section is created as a variable display area in which other areas can display information that can be selected from information input to the display control section. , The machine state picture In other screens including a setting screen other than, different information is displayed on the fixed display area, the setting screen is a screen for creating a layout of the screen section, the fixed time of the machine status screen Information on the setting screen is displayed in an area including a display area, and the variable display area at the time of the machine state screen is divided into a plurality of areas, and arbitrary information is selectively selected in each of the divided areas. It is possible to display .

  The present invention improves workability, smoothness of work by displaying arbitrary information according to work purpose, operator's preference, etc. in the variable display area of the monitor screen part provided in the cab of the construction machine. Safety can be ensured.

  Hereinafter, embodiments of the present invention will be described. FIG. 1 is a view showing a hydraulic excavator as an example of a construction machine applied to the present embodiment. The construction machine of the present embodiment includes a crawler type lower traveling body 1, an upper swing body 2, excavation work means, and the like. The front work machine 3 is schematically configured. The upper swing body 2 is provided with a cab 4 for an operator to board and operate the machine. Inside the cab 4, traveling by the lower traveling body 1, the upper swing body is provided. Operation means including an operation lever for performing operations such as operation of a boom 3a, an arm 3b, and a bucket 3c constituting the front work machine 3 for performing operations such as turning by 2 and excavation of earth and sand are provided.

  Further, a monitoring camera 10 for securing a rear view is attached to the counterweight 5 at the rear position of the upper swing body 2 of this construction machine, and in the vicinity of the tip of the arm 3b in the front work machine 3 A camera 11 for confirming the excavation state is attached. Furthermore, an antenna 12 a for communicating with the outside is provided at the upper part of the cab 4.

  As shown in FIG. 2, a monitor 13 is installed inside the cab 4. By displaying various types of information on the monitor 13, the operator can recognize various types of information. ing. In general, a construction machine used for excavation work, in particular, a hydraulic excavator, needs to have a compact monitor 13 in order to ensure a sufficient field of view for excavation work. Such a monitor 13 is assumed to be attached to, for example, the pillar 7 as shown in FIG.

  Next, the monitor 13 will be described. The monitor 13 is composed of a liquid crystal screen or the like, and as shown in FIG. 3, a screen unit 13A for displaying various information and buttons that can be operated by an operator (hereinafter referred to as an operator) such as an operator or an administrator. Part 13B. The screen portion 13A is divided into a plurality of display areas. In the example shown in FIG. 3, the first display area FA and the second display area having the areas A, B, C, and D are used. The first display area FA occupies most of the screen part 13A, and the second display area SA is formed as a thin band-like area below the screen part 13A. It is divided into multiple sections. As shown in FIG. 3, the second display area SA is equally divided into seven sections, and the sections divided into these equal sections are formed as section forming portions IF1 to IF7. On the other hand, the first display area FA is divided into four areas A, B, C, and D. The areas A, B, C, and the area D are divided into two vertically in the first display area FA. Regions obtained by dividing an area other than the area D of one display area FA into three equal parts are formed as 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 fuel gauge, and an area D is an area where arbitrary information can be displayed. . As described above, the first display area FA is divided into the upper and lower parts by the areas A, B and C and the area D. The areas A, B and C are divided into an oil temperature gauge, a water temperature gauge and a fuel fuel gauge. However, since the gauge is displayed in an analog format in which the inclination angle of the gauge changes, the regions A, B, and C are configured to have a certain size so that the operator can easily recognize the angle.

  Here, among the display areas A, B, and C, the areas B and C are provided as fixed display areas in which the water temperature gauge and the fuel fuel gauge are fixedly displayed. Here, the fixed display area refers to an area where information to be displayed cannot be set on the machine state screen as shown in FIG. That is, in the fixed display area on the machine state screen, fixed information is always displayed, and thus information to be displayed cannot be freely selected. However, in other screens that are not machine status screens, for example, first and second setting screens described later, different information is displayed in the fixed display area. On the other hand, it is assumed that an oil thermometer is basically displayed in the area A, but for this area A, the information displayed by the operator's setting can be freely selected. Is provided as a variable display area. Here, it is assumed that the information that can be displayed in the variable display area is information that can be acquired by the display control device 20 described later. In addition, a clock and an hour meter are normally displayed for the area D, but this area D is also provided as a variable display area where information to be displayed can be freely selected.

  Further, the region D is usually further divided into two regions, a divided region D1 and a divided region D2, in order to display two types of information, a clock and an hour meter. When it is desired to display other information in the area D in addition to the clock and the hour meter, the area D is divided according to the number of information to be displayed.

  The button portion 13B is a button that is pressed by an operator, and as shown in FIG. 3, the button portion 13B has nine buttons F1 to F9 in this embodiment. That is, the buttons F1 to F7 are arranged in a line immediately below the screen part 13A, and the buttons F8 and F9 are arranged in a line further directly below the button parts F1 to F7. Among these, the button F8 is a button for starting up a function for performing initial setting, and the button F9 is a button for projecting an image provided for securing a visual field behind the construction machine.

  On the other hand, the buttons F1 to F7 are provided so as to correspond to the partition forming units IF1 to IF7 directly above the buttons F1 to F7, respectively. Here, icons for operating the screen are displayed on the partition forming units IF1 to IF7. For example, in FIG. 3, the icon IC7 “placement setting” displayed on the partition forming unit IF7 is an icon for selecting information to be displayed on the screen unit 13A and calling a setting screen for determining the placement. . The operator can perform operations based on the icons by pressing the buttons F1 to F7 immediately below the icons displayed on the partition forming units IF1 to IF7. In the present embodiment, since the second display area SA is divided into seven sections, seven different icon ICs can be displayed simultaneously.

  In FIG. 3, the second display area SA is divided into seven partition forming portions IF1 to IF7, and buttons F1 to F7 are provided so as to correspond directly below these partition forming portions IF1 to IF7. Instead, the second display area SA can be divided into an arbitrary number of sections. However, when the number of divided sections is small, the types of icons for performing operations are reduced. On the other hand, when divided into many sections, the number of icons that can be displayed increases, so that complicated operations become possible, but the number of buttons increases according to the number of sections, and the operator intends There is a possibility of pressing a button that does not. That is, when the operator is an operator, since the operator of the construction machine normally operates with gloves, if a large number of buttons are provided on the small monitor 13, the adjacent button may be accidentally pressed. Therefore, it is not preferable to provide many buttons. In the present embodiment, from this point of view, the second display area SA is divided into seven partition forming units IF1 to IF7, and buttons F1 to F7 are provided so as to correspond to these partition forming units IF1 to IF7. It is not limited to this.

  The monitor 13 of the present embodiment is provided with a display control device 20 for performing display control of the screen unit 13A. The display control device 20 is a control device for controlling what information is displayed in each display area of the screen unit 13A, but information displayed on the screen unit 13A includes a variable display region. Information to be displayed in the variable display area is obtained from a sensor or detector connected to the display control device 20. As shown in FIG. 4, the display control device 20 of this embodiment includes a ROM (Read Only Memory) 21, a CPU (Central Processing Unit) 22, a RAM (Random Access Memory) 23, a button input control unit 24, and a screen unit. An output control unit 25, a vehicle body communication unit 26, an icon display position storage unit 27, a display screen creation unit 27, an item setting information storage unit 28, and a setting screen storage unit 29 are connected via a bus 30. A cooling water sensor 41, a hydraulic oil sensor 42, a remaining fuel sensor 43, an engine oil sensor 44, and an engine speed sensor 45 are connected to the bus 30. The cooling water sensor 41 has a temperature and amount of cooling water. The hydraulic oil sensor 42 indicates the temperature and amount of hydraulic oil, the fuel remaining amount sensor indicates the remaining amount of fuel, the engine oil sensor 44 indicates the remaining amount of engine oil, the engine speed sensor 45 indicates the engine speed, and the battery. The remaining amount sensor 46 constantly sends the remaining amount of the battery to the display control device 20 as digital data. The construction machine is provided with various sensors and detectors in addition to the sensors described above.

  The ROM 21 is a storage device for storing a program for performing display control of the present embodiment, the CPU 22 is a processing device for executing the program stored in the ROM 21, and the RAM 23 is a work unit when executing the program. A storage device used as an area. The button input control unit 24 is a control unit that outputs to that effect to the CPU 22 when the buttons F1 to F7 are pressed. The screen unit output control unit 25 is a control unit for controlling the screen displayed on the screen unit 13A. The vehicle body communication unit 26 performs control of an information recording device 51 that stores the state of the engine, the hydraulic mechanism, and the like, an engine control device 52 that controls the number of revolutions of the engine, for example, a solenoid valve, and the like via the vehicle body network 60. It is a communication part for controlling transmission / reception of the information performed between the hydraulic control apparatus 53 for this and the display control apparatus 20. FIG. The display screen creation unit 27 is a creation unit for creating a screen layout (including display of scales, hands, numbers, characters, etc.) to be displayed on the screen unit 13A based on contents set by the operator. The item setting information storage unit 28 is a storage unit for storing information indicating whether to display each item and setting contents indicating in which area. The setting screen storage unit 29 is a storage unit for storing first and second setting screens for performing display settings.

  Next, the display control of this embodiment is demonstrated using the flowchart of FIG. First, as shown in FIG. 3, basically, in the first display area of the monitor 13A, an oil thermometer in the area A, a water thermometer in the area B, and a fuel fuel gauge in the area C, A clock is displayed in the divided area D1 of the area D, and an hour meter is displayed in the divided area D2. An icon IC7 for setting a screen is displayed on the partition forming unit IF7 of the second display area SA.

  On the monitor 13 displayed as described above, first, the operator presses the button F7 immediately below the icon IC7 (step S1). When the button F7 is pressed, a signal to that effect is output to the CPU 22, and the CPU 22 reads the first setting screen as shown in FIG. 6 from the setting screen storage unit 29 and controls the screen unit output control unit 25. By doing so, the first setting screen is displayed on the screen portion 13A (step S2).

  In the first setting screen of FIG. 6, a screen for selecting an item to be subjected to display setting is displayed in the first display area FA. The display item is an item for which the operator sets display. The presence or absence of display indicates whether or not each item is displayed. The display position indicates in which area of the screen unit 13A each item is displayed. Show. Here, as shown in FIG. 6, two additional items are provided in addition to the three items of the oil temperature gauge, the clock, and the hour meter. That is, the area B is provided as a fixed display area for fixedly displaying the water temperature gauge, the area C is fixedly displaying the fuel fuel gauge, and the area A and the area D can freely select information displayed by the operator. Since it is provided as a variable display area that can be set, items that can be set in FIG. 6 are basically an oil thermometer displayed in area A, a clock or an hour meter displayed in area D, etc. Yes, the water temperature gauge and the fuel fuel gauge are displayed in the fixed display area, and are not subject to the setting items. In addition, when the setting is not performed in particular, the region A is set to display an oil temperature gauge. That is, basically, since it is necessary to display three types of information such as a water temperature gauge, an oil temperature gauge, and a fuel fuel gauge as gauges, the oil temperature gauge is displayed in the area A in the initial setting. Settings are made. In addition, since the oil thermometer is highly important in setting, the area A item is provided at the top in the first setting screen.

  Here, as additional items, for example, the amount of cooling water detected by the cooling water sensor 41, the amount of hydraulic oil detected by the hydraulic oil sensor 42, the amount of engine oil detected by the engine oil sensor 44, and the engine speed sensor The engine speed detected by the engine 45, the remaining battery capacity detected by the remaining battery sensor 46, and the like. In addition, in the case where a sensor for detecting fuel consumption, a sensor for detecting the hydraulic pressure of a brake, or the like is provided, values detected by these sensors can be provided as additional items. That is, any information can be provided as a candidate for an additional item as long as information can be input to the display control device 20.

  Then, the operator selects an item to be set from the first setting screen. This item is selected by a cursor (in FIG. 6, the background is hatched). Here, as shown in FIG. 6, the partition forming unit IF4 of the second display area SA has an icon IC4 “up”, IF5 has an icon IC5 “down”, and IF6 has “change”. The icon IC6 is newly displayed on the IF7 as "confirmed". Among these, the icon IC4 “up” moves the cursor up one, the icon IC5 “down” moves the cursor down one, and the icon IC6 “change” is the screen. The icon IC7 “confirmed” is for confirming all the settings and returning to the screen reflecting the setting contents.

  The operator moves the cursor to the position of the item to be set by pressing the button F4 or F5 immediately below the icon IC4 or IC5 (step S3), and presses the button F6 at the position of the item. By doing so, an item to be set is determined (step S4).

  When a signal indicating that the button F6 has been pressed is input to the CPU 22, the CPU 22 reads the second setting screen from the setting screen storage unit 29, controls the screen unit output control unit 25, and sends the second setting screen to the screen unit 13A. 2 setting screen is displayed (step S5). In the second setting screen, the presence / absence of display indicates whether or not an item to be set is displayed, and the display position indicates whether the item is displayed in region A or region D.

  On such a second setting screen, the operator determines whether or not the selected item is displayed and the area to be displayed. At this time, in the second setting screen, the icon IC2 “left” is displayed in the partition forming unit IF2 of the second display area SA, the icon IC3 “right” is displayed in IF3, and the icon “up” is displayed in IF4. In IC4, IF5 has a new icon IC5 “down”, IF6 has a new icon IC6 “change”, and IF7 has a new icon IC7 “return”. Among these icons, the icons IC2 to IC5 move the cursor left and right, up and down, the icon IC6 determines the setting contents on the second setting screen, and the icon IC7 sets the setting contents on the second setting screen. This is for returning to the first setting screen without confirming.

  The operator moves the cursor by pressing the buttons F2 to F5 immediately below the icons IC2 to IC5, sets the presence / absence of display and the position of the display, and presses the button F6 to set the setting contents. Confirm (step S6).

  At this time, when a signal indicating that the button F6 has been pressed is input to the CPU 22, the CPU 22 stores in the item setting information storage unit 29 the presence / absence of display of each set item and the setting contents for the display area.

  Thereafter, the CPU 22 reads 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). The operator continues the operations after step S3 when setting the presence / absence of display and the display area for other items. On the other hand, when setting for other items is not performed, the button F7 is pressed (step S9). When this button F7 is pressed, the CPU 22 instructs the display screen creation unit 27 to create the layout of the screen displayed on the screen unit 13A. The display screen creation unit 27 creates a layout of a screen to be displayed on the screen unit 13A based on the setting contents of each item stored in the item setting information storage unit 28, and a layout like the screen unit 13A is displayed. The screen output control unit 27 is controlled. 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 that the display is reduced or displayed, for example, in a digital format or a bar format. Further, when a clock, an hour meter, or the like is displayed not in the area D but in the area A, the display area is enlarged, so that the display is enlarged or a screen converted to an analog format or the like is created for the clock.

  As described above, in this embodiment, the oil temperature gauge can be displayed as it is in the area A where the oil temperature gauge is normally displayed, or another item is displayed instead of the oil temperature gauge. It is also possible. In addition, items to be displayed can be freely set for the region D other than the regions A, B, or C in which instruments such as an oil temperature gauge, a water temperature gauge, or a fuel fuel gauge are displayed. This item is not limited to information such as a clock or an hour meter, but may be any information that can be obtained by the display control device 20. Therefore, not only the mechanism currently provided in the construction machine but also a newly added mechanism. However, by outputting information about the mechanism to the display control device 20, the mechanism can be displayed in the area A instead of the oil temperature gauge.

  In the present embodiment, the button F7 is used when transitioning from the machine state screen to the first setting screen. For example, when the button F8, which is a menu button, is pressed, the first button is pressed from the machine state screen. When transitioning to the setting screen, the second display area SA can also be assigned to the areas A, B, and C on the machine state screen, or can be provided as a new area for displaying other information. . That is, on the machine state screen, by pressing the button F7 corresponding to the icon “IC7” “placement setting” displayed on the partition forming portion D7 of the second display area SA, the first setting screen is displayed from the machine state screen. For example, if the button F8, which is a menu button, is assigned so as to transition from the machine state screen to the first setting screen, it is not necessary to display an icon in the second display area SA. The second display area SA can be assigned to the areas A, B, and C, and other information can be displayed.

  In addition, as an item that can be selected, an oil thermometer, a clock, an hour meter, and two added additional items are provided, but more items may be provided. Thus, by providing many items, the range of selection that the operator can display in the area A is expanded.

  In addition, the area B and the area C are provided as fixed display areas in which the water temperature gauge and the fuel fuel gauge are fixedly displayed. Alternatively, the area C may be provided as a variable display area where the operator can arbitrarily set display.

  In addition, although the area A is a variable display area and the areas B and C are fixed display areas, any two areas of the areas A, B, or C are fixed displays in which a water temperature gauge and a fuel fuel gauge are displayed. The remaining area may be a variable display area.

  Further, 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 configured to be stretchable.

  Further, the buttons F1 to F7 are provided directly below the partition forming units IF1 to IF7 so that the icons IC1 to IC7 displayed on the partition forming units IF1 to IF7 correspond to the buttons F1 to F7, but the icons IC1 to IC7 If the operator can easily grasp that the buttons F1 to F7 correspond to each other, it can be provided at an arbitrary position on the monitor 13 such as a position immediately above the screen portion 13A or a right and left position closest thereto. Good.

  Next, Example 1 will be described. In the present embodiment, it is assumed that four items of an oil temperature meter, an engine speed meter, fuel consumption, and an attachment hour meter can be selected. Among these, the fuel consumption is for displaying the current state of fuel consumption of the construction machine, and the attachment hour meter is for displaying the usage time of the attachment. In the present embodiment, in order to display the fuel consumption and the attachment hour meter in this way, a mechanism for newly acquiring the fuel consumption and a mechanism for acquiring the attachment wearing time are added to the vehicle body network 60.

  Further, the region D is divided into four regions of divided regions D1, D2, D3, and D4. In the present embodiment, among the divided areas D1 and D2, the clock and the hour meter are fixedly displayed, and the areas that can be arbitrarily selected are the three areas of the area A and the divided areas D3 and D4. It shall be. The region A is set to display an oil thermometer, but the divided regions D3 and D4 are set to display nothing.

  In this embodiment, the operator sets the oil temperature gauge to the non-display state, displays the engine speed meter in the area A, sets the attachment hour meter in the divided area D3, and displays the fuel consumption in the divided area D4. It shall be.

  First, on the screen as shown in FIG. 3, when the button F <b> 7 immediately below the icon IC <b> 7 “placement setting” is pressed, a first setting screen as shown in FIG. 8 is displayed. In order to hide the oil thermometer, the operator depresses the button F4 immediately below the icon IC4 "up" or the button F5 directly below the icon IC5 "down" to set the oil thermometer item. The item is determined by moving the cursor and pressing the button F6 immediately below the icon IC6 "change".

  When button F6 is pressed, a second setting screen as shown in FIG. 9 is displayed (step S5). Then, in order to hide the oil temperature gauge, the operator depresses the button F2 corresponding to the icon IC2 “left” or the button F3 corresponding to the icon IC3 “right” to display or not display Move the cursor to "Do not display". As a result, the oil temperature gauge is in a non-display state, and therefore, the background position indicating the cursor may be eliminated for the display position, and the cursor may not be moved for the display position. In this state, when the button F6 immediately below the icon IC6 “change” is pressed, information indicating that the oil thermometer item is not displayed is stored in the item setting information storage unit 28.

  Since the screen transitions from the second setting screen to the first setting screen, the operator performs the same operation and splits the attachment hour meter so that the engine speed meter is displayed in the area A. In the area D3, the fuel consumption is set to be displayed in the divided area D4. At the time of setting such items, the engine speed meter is displayed in the area A, the attachment hour meter is displayed in the divided area D3, and the fuel consumption is displayed in the divided area D4. 28 stores.

  After all the items are completed, when the button F7 immediately below the icon IC7 “OK” is pressed on the first setting screen, the display screen creation unit 27 relates to the display of each item from the item setting information storage unit 28. The information is read out and a screen layout is created so that the engine speed meter is displayed in the area A, the attachment hour meter is displayed in the divided area D3, and the fuel consumption is displayed in the divided area D4. At this time, a water temperature gauge is provided in the area B, a fuel fuel gauge is provided in the area C, a clock is provided in the divided area D1, and an hour meter is provided as a fixed display area in the divided area D2. Therefore, a screen layout displayed in the first display area MS of the screen portion 13A is created by combining these fixed display areas and displayed according to the screen layout as shown in FIG. The unit output control unit 25 is controlled to perform display.

  As described above, in this embodiment, the water temperature meter is displayed in the area B, the fuel fuel gauge is displayed in the area C, the clock is displayed in the divided area D1, and the hour meter is fixedly displayed in the divided area D2. Although the area A, the divided area D3, and the divided area D4 are provided as variable display areas that can be arbitrarily set by the operator, the items to be displayed in these areas can be freely set. Can do. Therefore, when the engine speed is important for the operator, the engine speed can be easily visually recognized by displaying the engine speed meter in the area A having a certain size. Further, by displaying the attachment hour meter and the fuel consumption in the region D, it is possible to grasp the usage time of the attachment and the current fuel consumption of the construction machine.

  Next, Example 2 will be described. In the present embodiment, the clock is not displayed in the divided area D1 of the area D and the hour meter is fixedly displayed in the divided area D2, but the operator can freely select an area for displaying the clock and the hour meter. To be able to. In addition, it is assumed that a clock displayed in the digital format in the area D is normally displayed in the analog format when displayed in the area A. Furthermore, when an oil temperature gauge that is normally displayed in the analog format in which the inclination angle of the gauge changes according to the value measured by the hydraulic oil temperature gauge 42 in the region A is displayed in the region D, it is displayed in the bar format. Shall be.

  In this embodiment, the operator displays a clock in the area A, an attachment hour meter in the divided area D1, an hour meter in the divided area D2, a drilling hour meter in the divided area D3, and an oil thermometer in the divided area D4. To do. Here, the excavation hour meter refers to the time when the construction machine has been subjected to excavation work, and refers to the time when the bucket is attached as an attachment.

  In the present embodiment, on the screen as shown in FIG. 3, when the operator presses the button F <b> 7 immediately below the icon IC <b> 7 “placement setting”, the screen transitions to the first setting screen. In the first setting screen, as shown in FIG. 12, the oil temperature gauge is in the divided area D4, the clock is in the area A, the hour meter is in the divided area D2, the attachment hour meter is in the divided area D1, and the drilling hour meter Is set to be displayed in the divided area D3.

  In order to perform the setting as described above, each item is set by operating buttons F2 to F7 on the first and second setting screens. When the setting of one item is completed, the setting content is stored in the item setting information storage unit 28. Here, in this embodiment, in order to be able to set all four areas of the divided areas D1, D2, D3 and D4 of the area D, the display position is five areas as shown in FIG. To be able to choose from. At this time, an area that has already been selected with another item may not be selected. For example, when it is selected that the clock is already displayed in the area A, the cursor may not be moved to the area A when setting other items on the second setting screen. Although the cursor can be moved, an error message may be displayed to notify the operator when the button F6 for confirming the setting contents is pressed.

  When the display settings for all items are completed and the operator presses the button F7 on the first setting screen to confirm, the item setting information storage unit 28 in which the setting contents of each item are stored is read. Then, the display screen creation unit 27 creates a layout of the screen to be displayed on the screen unit 13A, and controls the screen unit output control unit 25 to display it according to the created layout, so that the screen as shown in FIG. Is displayed on the screen section 13A. At this time, the display screen creation unit 27 displays the clock in an area A having a certain size in an analog format that is easy for the operator to visually recognize, not in a digital format, and is displayed in a relatively small area D4. The oil thermometer creates a screen to be displayed in a bar format as shown in FIG. 14, for example, instead of an analog format in which the inclination angle of the gauge changes. At this time, the oil temperature gauge may be displayed in a digital format instead of a bar format. In short, display is performed in a format that can be displayed in the small area D4.

  In addition, in Example 1 and a present Example, although the engine speed meter, the fuel consumption, the attachment hour meter, and the excavation hour meter were mentioned as an additional item, it is not restricted to this, For example, the time when the breaker is attached as an attachment A breaker hour meter or the like may be provided. In addition, the remaining operable time of the construction machine may be calculated from the fuel fuel gauge 43 and the mechanism for detecting fuel consumption, and this time may be used as an additional item.

  Moreover, you may make it display the information regarding the function with which a construction machine is equipped as an additional item. As this function, there is a function called ML function. The construction machine is normally used for excavation work, but can perform crane work by exchanging the attachment with a bucket with a hook. When performing this crane work, it is necessary to display the rated load that is the limit value of the suspended load and the actual load that is the actual load in order to prevent the construction machine from overturning. Such information of the rated load and the actual load may be provided as additional items and displayed in the area A or the area D which is a variable display area.

  As a function, there is a function called an interference prevention function. When using an offset type construction machine, it is necessary to set the operating range of the front work machine in order to prevent the front work machine from colliding with the cab. At this time, since it is necessary to display information necessary for setting, the information may be displayed in the area A or the area D which is a variable display area.

  Furthermore, information for using the mail function for communicating with the management company that manages the construction machine and the setting function for performing various settings are provided as additional items and displayed in the variable display area A or D. May be.

  Next, Example 3 will be described. In the present embodiment, control is performed such that a monitoring camera 10 for securing a rear visual field or a camera 11 for confirming an excavation state is displayed on the screen unit 13A.

  In this embodiment, an image of the camera 10 or 11 is displayed in the area A, a clock is displayed in the divided area D1, an hour meter is displayed in the divided area D2, a drilling hour meter is displayed in the divided area D3, and an oil thermometer is displayed in the divided area D4. Suppose you choose as follows. When selection of all items is completed, when the operator presses button F7 on the first setting screen to confirm the setting, the display screen creation unit 27 sets each item from the item setting information storage unit 28. The contents are read and a screen layout to be displayed on the screen unit 13A is created.

  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 defined as one area E in this embodiment. At this time, since the area E is the area A, B, and C, the water temperature gauge and the fuel fuel gauge must be displayed in the area E. However, since it is preferable that the image area of the camera 10 or 11 is as large as possible, the area E2 for displaying the water temperature gauge and the area E3 for displaying the fuel fuel gauge are displayed by the operator as shown in FIG. The display screen creating unit 27 creates a screen assigned as a video area of the camera 10 or 11 with the area E1 other than the areas E2 and E3 being formed as a minimum size that can be visually recognized.

  In this embodiment, the water temperature gauge is displayed in the area E2 and the fuel fuel gauge is displayed in the area E3. However, the present invention is not limited to this, and the fuel fuel gauge is displayed in the area E2 and the water temperature gauge is displayed in the area E3. May be. In short, it suffices to control so that most of the area E is divided into an area for displaying an image from the camera 10 or 11 and an area for displaying a water temperature gauge and a fuel fuel gauge.

1 is an overall configuration diagram of a construction machine. It is a schematic block diagram inside a driver's cab. It is a block diagram of a monitor. It is a schematic block diagram of a display control apparatus. It is a flowchart which shows the flow of a process of a display control method. It is a screen figure of a 1st setting screen. It is a screen figure of a 2nd setting screen. 6 is a screen diagram of a first setting screen in Embodiment 1. FIG. It is a screen figure of the 2nd setting screen in Example 1. FIG. 6 is a screen diagram of a first setting screen in Embodiment 1. FIG. FIG. 3 is a screen view of a monitor after setting in the first embodiment. FIG. 10 is a screen diagram of a first setting screen in Embodiment 2. FIG. 10 is a screen diagram of a second setting screen in Embodiment 2. FIG. 10 is a screen view of a monitor after setting in the second embodiment. FIG. 10 is a screen view of a monitor after setting in the third embodiment.

Explanation of symbols

13 Monitor 13A Screen unit 20 Display control devices A, B, C, D, E Areas D1, D2, D3, D4, E1, E2, E3 Divided areas IC1 to IC7 Icons IF1 to IF7 Partition forming part

Claims (3)

Provided in the operator's cab of the construction machine, mainly for displaying a machine state screen having information on the instruments of the construction machine, and for performing display setting operation of the screen displayed on the screen part A button unit having a plurality of buttons, and a display control unit for performing display control of the screen unit,
The screen portion is switched and displayed between the machine state screen and another screen including a setting screen other than the machine state screen,
In the machine status screen, the screen section is divided into a plurality of areas, and one or more areas among the plurality of divided areas are other areas as fixed display areas for displaying predetermined information. A screen to be displayed on the screen unit is created as a variable display area in which information that can be selected from information input to the display control unit is displayed,
In other screens including setting screens other than the machine status screen, other information is displayed in the fixed display area ,
The setting screen is a screen for creating a layout of the screen portion,
Displaying information of the setting screen in an area including the fixed display area at the time of the machine state screen;
The variable display area at the time of the machine state screen is divided into a plurality of areas, and arbitrary information can be selectively displayed in each of the divided areas . Provided in the operator's cab of the construction machine, mainly for displaying a machine state screen having information on the instruments of the construction machine, and for performing display setting operation of the screen displayed on the screen part A button unit having a plurality of buttons, and a display control unit for performing display control of the screen unit,
The screen portion is switched and displayed between the machine state screen and another screen including a setting screen other than the machine state screen,
In the machine status screen, the screen section is divided into a plurality of areas, and one or more areas among the plurality of divided areas are other areas as fixed display areas for displaying predetermined information. A screen to be displayed on the screen unit is created as a variable display area in which information that can be selected from information input to the display control unit is displayed,
In other screens including setting screens other than the machine status screen, other information is displayed in the fixed display area,
The screen section is divided into a first fixed display area, a second fixed display area, a first variable display area, and a second variable display area, and the first variable display area and the first fixed display area. The display area, the second fixed display area, and the second variable display area are vertically divided, and the first variable display area, the first fixed display area, and the second fixed display area Divided into three equal parts at the bottom of the second variable display area,
In the machine status screen, a water temperature gauge is displayed in the first fixed display area, and a fuel fuel gauge is displayed in the second fixed display area. Said second variable display area of, is further divided into a plurality of areas, these plurality of divided regions is of a construction machine according to claim 2, characterized in that selects information to be displayed respectively optionally Display device.

Images