JP6605524B2 - Work machine operating status display system - Google Patents

Description

  The present invention relates to an operation state display technique for a work machine. In particular, the present invention relates to an operation state display technique including an alarm display when an abnormality of a work machine is detected.

  In a working machine, there is a technique for displaying information and alarms indicating the state of the working machine so that an operator can easily understand. For example, Patent Document 1 discloses that, in a monitor display device having a result display unit for displaying a monitor result and an explanation unit for explaining the monitor result with characters and figures, the character explanation unit is displayed on a liquid crystal display. A monitor display device for a construction machine is disclosed that includes language selection means for selecting and displaying one language from a plurality of languages (summary excerpt).

Japanese Patent Application No. 10-242805

  In the technique disclosed in Patent Document 1, a result display unit and an explanation unit are provided on the left side of the display unit, and an alarm display unit for reporting an abnormal state is provided on the right side of the display unit. In the alarm display unit, the alarm is displayed in a liquid crystal form with graphics and / or characters. For this reason, when an abnormality occurs in the work machine, the operator must look at the alarm display section in a region completely different from the region where the monitor result is displayed. Furthermore, in order to grasp the abnormal content, it is necessary to decode a figure or a character displayed on the monitor. That is, the operator must move the line of sight and cannot intuitively grasp it.

  The present invention has been made in view of the above circumstances, and provides a technique that allows an operator to grasp the occurrence of an abnormality instantaneously while minimizing line-of-sight movement when an abnormality occurs in the vehicle body of a work machine. With the goal.

  The present invention is a display system for displaying an operating state of a work machine, and determines abnormality of the work machine based on a monitor for displaying information and a vehicle body information signal received from a sensor provided in the work machine. An abnormality determination unit, and a display image displayed on the display unit of the monitor has a rectangular shape based on an instrument display region in which an instrument display indicating a signal value of the vehicle body information signal is arranged, and the vehicle body information signal An alarm display area on which an indicator is displayed, wherein the alarm display area is at least one of both end portions in a first direction parallel to one side of the display image on the display image, Provided is a display system that is provided in an area that does not overlap with a display area.

  According to the present invention, when an abnormality occurs in the vehicle body of the work machine, the operator can grasp the occurrence of the abnormality instantaneously while minimizing the movement of the line of sight. Problems, configurations, and effects other than those described above will become apparent from the following description of embodiments.

(A) is a whole block diagram of the hydraulic excavator of embodiment of this invention, (b) is explanatory drawing for demonstrating the inside of a driver's seat of embodiment of this invention. It is a warning display system functional block diagram of an embodiment of the present invention. (A) And (b) is explanatory drawing for demonstrating the example of a display screen of embodiment of this invention. (A) And (b) is explanatory drawing for demonstrating the other example of the display screen of embodiment of this invention. It is a flowchart of the alarm display process of embodiment of this invention.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. Hereinafter, in this specification, those having the same function are denoted by the same reference numerals unless otherwise specified, and repeated description is omitted. Hereinafter, a hydraulic excavator 100 will be described as an example of a working machine.

  In the present embodiment, when an abnormality occurs in the vehicle body of the hydraulic excavator 100, the operator can intuitively grasp the occurrence of the abnormality in a manner that does not interfere with the normal display on the monitor provided in the cab pillar. Display alarms in an easy manner. Hereinafter, the configuration of the hydraulic excavator 100 that realizes this function will be described.

  Fig.1 (a) is a figure which shows the whole structure of the hydraulic shovel 100 which is an example of a construction machine in embodiment of this invention.

  As shown in the figure, a hydraulic excavator 100 according to the present embodiment includes a crawler type traveling body 101, a revolving body 102 provided on the traveling body 101 so as to be able to swivel, and a swiveling device 103. The excavator 100 further includes a vehicle body controller 230 and a sensor 240 (see FIG. 2), although not shown in FIG.

  The traveling body 101 has traveling devices 110 on the left and right, respectively. The traveling device 110 includes a side frame 111, driving wheels 112 and driven wheels 113 provided at both ends of the side frame 111, and crawler belts 114 wound around the driving wheels 112 and the driven wheels 113. The left and right side frames 111 are connected to the center frame. A swivel body 102 is turnably connected to the center frame via a swivel device 103.

  The swivel body 102 includes an upper frame 120, a front work mechanism 121, a building 125, a cab 126, a side walk 127, a ladder 128, and a handrail 129.

  The front working mechanism 121 includes a boom 122, an arm 123, and a bucket 124. The boom 122 is provided on the upper frame 120 so as to move up and down. The arm 123 is connected to the tip of the boom 122 so as to be rotatable in the vertical direction. The bucket 124 is connected to the tip of the arm 123 so as to be rotatable in the vertical direction. The bucket 124 is a loader type.

  The side walk 127 and its handrail 129 are provided on the left and right outer sides of the building 125 or in front of the cab 126. The side walk 127 is used as a passage required for entering and exiting the cab 126, inspection of equipment, maintenance and the like. The ladder 128 is used for the operator to go up the cab 126 or the building 125 through the side walk 127.

  The building 125 houses an engine, a hydraulic pump, and other devices. The vehicle body controller 230 is provided in the building 125, for example, and controls various operations of the excavator 100. The vehicle body controller 230 controls the operation using the vehicle body information received from the sensors 240 arranged in each part of the excavator 100.

  The cab 126 is installed in front of the building 125. The operator controls the operation of the entire excavator 100 in the cab 126, that is, operations such as traveling of the excavator 100, turning of the swing body 102, excavation of earth and sand by the front work mechanism 121, and the like.

  FIG. 1B is a diagram schematically showing the inside of the cab 126 of the excavator 100.

  A driver's seat 145, a pillar 146, an operation unit 147, and an input interface 148 are provided inside the cab 126. Further, a monitor display device including a monitor 210 and a monitor display controller 220 (not shown in FIG. 1B) is further provided in the cab 126.

  An operator is seated in the driver seat 145. The operation unit 147 has various operation means and is provided around the driver's seat 145. The operation unit 147 includes an operation lever for performing operations such as traveling by the traveling body 101, turning by the revolving body 102, excavation of earth and sand by the front work mechanism 121, and the like. The input interface 148 is a switch or the like that accepts various operations by the operator for the display on the monitor 210. The input interface 148 is arranged at a hand position of an operator who arrives at the driver's seat 145.

  As described above, in this embodiment, when an abnormality occurs in the vehicle body of the excavator 100, an alarm is displayed on the monitor 210. Hereinafter, the details of the configuration of the operating state display system that displays the operating state of the excavator 100 in the excavator 100 to realize this will be described.

  FIG. 2 is a functional block diagram of the operating state display system of the present embodiment. As shown in this figure, the operating state display system of the present embodiment is realized by a sensor 240, a vehicle body controller 230, a monitor display controller 220, and a monitor 210.

  Here, the vehicle body controller 230 is composed of three controllers ((A) 231, (B) 232, (C) 233), and the sensor 240 is composed of three controllers, nine in total (241 -249) The case where it comprises is illustrated, However, The number of these is not limited to this.

  As described above, the sensor 240 is provided in each part of the excavator 100, detects its state, and outputs it to the vehicle body controller 230 as a vehicle body information signal.

  The vehicle body controller 230 controls various operations of the excavator 100 as described above. For example, various processes are performed on a signal input from the outside, an operation signal or the like is generated, and an instruction is issued to each unit. Examples of the signal input from the outside include a vehicle body information signal from the sensor 240 and an operation signal via the operation unit 147.

  In the present embodiment, the vehicle body controller 230 also functions as an abnormality determination unit that determines the occurrence of an abnormality based on information from the sensor 240. The vehicle body controller 230 determines an abnormality of the excavator 100 based on the received vehicle body information signal, and outputs an abnormality signal to the monitor display controller 220.

  The abnormal signal of the present embodiment includes, for example, information for specifying the sensor 240 in which an abnormality has occurred (abnormality occurrence location), information for specifying the abnormal content (abnormal content), information indicating the level of abnormality (abnormal level), and the like included.

  In other words, in the present embodiment, the vehicle body controller 230 monitors (monitors) the state of various parts of the vehicle body using the sensors 240 attached to the various parts of the vehicle body. If it is determined that an abnormality has occurred, an abnormality signal is output to the monitor display controller 220.

  Here, the monitored vehicle information includes, for example, the coolant temperature, the remaining amount of fuel, the hydraulic oil temperature, the engine speed, the speed, and the like.

  As shown in FIG. 1B, the monitor 210 is provided in the pillar 146 and has, for example, a liquid crystal screen (display unit) having a rectangular display area 211. The monitor 210 displays various information related to the excavator 100, various information for operating the excavator 100, and the like by the monitor display controller 220. In the present embodiment, vehicle body information and an alarm are displayed.

  The monitor display controller 220 processes the vehicle body information signal and the abnormality signal input from the vehicle body controller 230, and generates image data. The generated image data is output to the monitor 210 and displayed. The image data generated by the monitor display controller 220 is image data of a rectangular display image displayed in the rectangular display area 211 of the monitor 210.

  The monitor display controller 220 displays vehicle body information and the like of the excavator 100 on the monitor 210 at normal time (normal time). Hereinafter, the vehicle body information that is normally displayed is referred to as instrument display.

  In addition, when the monitor display controller 220 receives an abnormality signal from the vehicle body controller 230, in addition to the instrument display, the monitor display controller 220 displays an alarm display indicating the occurrence of the abnormality and warns the operator. An example of a display image based on the generated image data will be described later.

  In order to realize the above processing, the monitor display controller 220 according to the present embodiment includes a graphic interface 221, a computing device 222, a CAN (Controller Area Network) interface 223, a memory 224, and a storage device, as shown in FIG. 225 and CAN250.

  The CAN interface 223 is an interface for transmitting and receiving information between the monitor display controller 220 and the vehicle body controller 230. Transmission / reception of information between the two is performed by CAN communication via the CAN 250.

  The graphic interface 221 functions as a display output unit that outputs the image data generated by the arithmetic unit 222 to the monitor 210 and displays it.

  The arithmetic device 222 functions as a control unit that controls the overall operation of the monitor display controller 220. Further, it functions as a display control unit that generates image data of a display image to be displayed on the monitor 210 from a vehicle body information signal and an abnormality signal received via the CAN interface 223.

  The memory 224 and the storage device 225 function as a storage unit that holds data necessary for the arithmetic device 222 to perform processing, data that is being processed, and data generated by the processing. In the present embodiment, for example, a program for realizing the above functions and generated image data are stored. In addition, as will be described later, icons and text messages are displayed according to the abnormal signal. Therefore, these data are also stored.

  The arithmetic device 222 realizes the above functions by, for example, loading a program stored in advance in the storage device 225 into the memory 224 and executing it.

  The memory 224 is, for example, a RAM, and the storage device 225 is, for example, a ROM, a hard disk, or the like.

  Here, an example of the display image 300 displayed in the display area 211 of the monitor 210 based on the image data generated by the monitor display controller 220 will be described. FIG. 3A and FIG. 3B are examples of the display image 300 of the present embodiment.

  Here, it is assumed that the rectangular display area 211 provided in the monitor 210 is attached to the pillar 146 so that the longitudinal direction is the horizontal direction. Hereinafter, for the sake of explanation, the longitudinal direction of the rectangular display area 211 and the display image 300 displayed thereon is defined as an X axis (first direction), and the lateral direction is defined as a Y axis (second direction Y axis). . In addition, the upper and lower sides and the left and right sides are based on a case where an operator positioned toward the monitor 210 looks in front of the monitor 210.

  The display image 300 includes a vehicle body information display area 310, an icon display area 330, and a text display area 340.

  The vehicle body information display area 310 is arranged in the upper area of the display image 300. The vehicle body information display area 310 of this embodiment includes an instrument display area 350 and an alarm display area 320.

  At this time, the alarm display area 320 is arranged in a position in the vehicle body information display area 310 that does not overlap the instrument display area 350 and is easily visible to the operator. In the example of FIG. 3A, the instrument display area 350 is disposed at the center of the vehicle body information display area 310, and the alarm display area 320 is disposed at both ends of the vehicle body information display area 310 in the Y-axis direction. The The arrangement of the alarm display area 320 is not limited to this. For example, it may be at least one of both ends of the vehicle body information display area 310 in the Y-axis direction.

  In the instrument display area 350, the signal value of the vehicle body information signal is displayed as an instrument display. In the present embodiment, for example, each signal value is displayed on a figure imitating an instrument in a manner in which a change in the signal value can be grasped, such as a bar graph 311 and a needle meter 312, for example.

  In the present embodiment, as the vehicle body information signal, for example, a signal indicating the speed of the hydraulic excavator 100, such as the coolant temperature, the remaining amount of fuel, the hydraulic oil temperature, the engine speed, and the like is obtained. For example, the water temperature of the cooling water, the remaining amount of fuel, the temperature of the hydraulic oil, and the like are displayed as a bar graph 311 on a circle simulating an instrument. The engine speed, speed, etc. are displayed on a needle meter 312. The height direction of the bar of the bar graph 311, that is, the increase / decrease direction of the display amount is, for example, the Y-axis direction.

  When the signal value of the vehicle body information signal is displayed as a bar graph 311, the height direction of the bar is along the circumference of a circle simulating an instrument like the central bar graph 311 in FIG. It is also good.

  The instrument display is displayed side by side in the X-axis direction. When the number of instrument displays is large, it may be displayed in a plurality of stages. Moreover, in the example shown to Fig.3 (a) and FIG.3 (b), although the needle | hook type meter 312 is arrange | positioned on the right side, arrangement | positioning of each meter display is not limited to this. Further, the number of instrument displays displayed is not limited.

  In the alarm display area 320, an indicator 321 corresponding to the abnormality level included in the abnormality signal is displayed. The indicator 321 has a rectangular shape having a predetermined width in the X-axis direction and a predetermined length in the Y-axis direction. In the example of FIG. 3A, the length in the Y-axis direction is substantially the same as the length of the alarm display area 320 in the Y-axis direction. The indicator 321 is displayed in a color corresponding to the abnormal level. The indicator 321 is colored with a color different from the background color of the display image 300.

  The indicator 321 is displayed only in color, and does not include graphics, text, or the like other than the rectangular shape. This is to make it a universal expression.

  At this time, the alarm display area 320 may be arranged so that the longitudinal direction of the indicator 321 matches the height direction of the bar graph 311. For example, in the above example, the height direction of the bar graph 311 is the Y-axis direction. For this reason, the alarm display areas 320 are provided at both ends in the X-axis direction so that the longitudinal direction of the indicator 321 is in the Y-axis direction. However, when the height direction of the bar graph 311 is the X-axis direction, the alarm display area 320 is connected to both ends of the vehicle body information display area 310 in the Y-axis direction so that the longitudinal direction of the indicator 321 is the X-axis direction. May be provided.

  For example, the icon display area 330 and the text display area 340 are arranged below the body information display area 310 in the display image 300.

  In the icon display area 330, an icon 331 prepared in advance according to the abnormality content of the abnormality signal is displayed. At this time, like the indicator 321, an icon 331 having a color corresponding to the abnormal level is displayed.

  In the text display area 340, a text message 341 prepared in advance is displayed according to the location where the abnormal signal has occurred and the content of the abnormality.

  Further, when the abnormal signal is not received, that is, when it is normal, only the instrument display is displayed, and the icon 331, the text message 341, and the indicator 321 are not displayed as shown in FIG.

  Next, the colors of the indicator 321 and the icon 331 will be described. Here, a case where the level of abnormality is in two stages of “medium” and “severe” will be described as an example. “Medium” is a level for calling attention, and “Severe” is a level for prompting the vehicle to stop.

  In this embodiment, for example, “medium” is displayed in yellow, and “severe” is displayed in red. These colors are those defined in “ISO 6405 earthworking machine / control device and display identification symbol”.

  In the present embodiment, for example, a red icon and a yellow icon are prepared for each icon set for each abnormality content. Each of them is stored in a red icon map and a yellow icon map provided in the storage device 225.

  In ISO 6405, it is defined as green when normal. In this embodiment, the indicator 321 is not displayed during normal operation. This is for reducing glare on the display screen at night and for improving visibility when an abnormality occurs. However, the green indicator 321 may be displayed at the normal time.

  In the above example, the display color of the indicator 321 is changed according to the abnormality level in order to intuitively indicate the abnormality level to the operator. However, the method of presenting the abnormal level to the operator is not limited to this. For example, the display area of the indicator 321 may be changed according to the abnormality level. That is, the higher the abnormal level, the wider the display area.

  For example, the display area may be changed by changing the height of the indicator 321. For example, when the abnormal level is “severe”, an indicator 321 having the same height as the length of the alarm display area 320 in the Y-axis direction is displayed as shown in FIG. On the other hand, when the abnormal level is “medium”, as shown in FIG. 4A, an indicator 321 having a lower height than that when the abnormal level is “severe” is displayed.

  Further, the lighting pattern of the indicator 321 may be changed according to the abnormal level. For example, in the case of “medium”, the display is turned on to call attention, and in the case of “severe”, the display is blinked. For example, when three or more abnormal levels are set, the lighting display may be performed at the lowest level, and the other abnormal levels may be configured to increase the blinking speed as the abnormal level is higher.

  When changing the lighting pattern of the indicator 321, the arithmetic unit 222 instructs the graphic interface 221 to perform display control according to the determined display pattern. In addition, after receiving the abnormal signal, the arithmetic unit 222 continues to display the indicator 321 until an instruction is given from the operator or the abnormal state is resolved.

  These indicator display methods may be combined.

  In the present embodiment, the monitor display controller 220 may receive a plurality of abnormal signals. In such a case, the monitor display controller 220 gives priority to the emergency level of the vehicle body abnormality and displays one type of indicator 321. That is, if even one abnormality with an abnormality level of “severe” has occurred, only the indicator indicating “severe” is displayed, and if only “middle” abnormality is present, “middle” is indicated. Displays an indicator. For this reason, in the present embodiment, a severe flag may be provided in the memory 224 or the storage device 225.

  In the present embodiment, the arithmetic device 222 functioning as a display control unit receives a vehicle body information signal and an abnormality signal received from the vehicle body controller 230 via the CAN interface 223, and data held in the memory 224 and / or the storage device 225. Is used to generate image data to be a display image 300 having the above arrangement when displayed on the display area 211 of the monitor 210 via the graphic interface 221.

  The arithmetic unit 222 functioning as a display control unit generates image data including an instrument display each time a vehicle body information signal is received. This instrument display is not changed except for signal value display even when an abnormal signal is received. That is, even when an abnormal signal is received, the instrument display layout in the instrument display area 350 is not changed.

  However, the arithmetic unit 222 that functions as a display control unit further displays an indicator 321, an icon 331, and a text message 341 in the alarm display area 320, icon display area 330, and text display area 340, respectively, when an abnormal signal is received. Perform alarm display processing to be displayed.

  Here, the flow of alarm display processing by the arithmetic unit 222 when an abnormal signal is received will be described. FIG. 5 is a processing flow of alarm display processing. In the following, as described above, there are two levels of abnormalities, severe and moderate, and a case where red is assigned to severe and yellow is assigned to moderate will be described as an example. Furthermore, a case where display pattern changes are combined will be described as an example.

  First, the severe flag is cleared (step S1101). Thereafter, the arithmetic unit 222 repeats the following processing for all received abnormal signals (step S1101).

  First, the arithmetic unit 222 sets the text to be displayed in the text display area 340 (step S1103). Here, the text registered in the storage device 225 is extracted in association with the location and content of the abnormality included in the abnormality signal, and set in the text display area 340 of the image data.

  Next, the arithmetic unit 222 sets an icon to be displayed in the icon display area 330. First, the abnormal level of the abnormal signal to be processed is determined (step S1104). Here, it is determined whether or not it is severe based on the abnormality level included in the abnormality signal. If it is severe (Yes), an icon is selected from the red icon map (step S1105). In addition, the arithmetic unit 222 checks whether or not the severe flag is set (step S1105). If not set (Yes), the severer flag is set (step S1106). Thereafter, the selected icon is set in the icon display area 330 (step S1109).

  On the other hand, if the abnormality level of the abnormality signal to be processed is medium (S1104; No), the arithmetic unit 222 selects an icon from the yellow icon map (step S1108). Then, control goes to a step S1109.

  The arithmetic device 222 performs the processing from step S1103 to step S1109 for all the received abnormal signals (steps S1102 and S1110).

  Next, the arithmetic unit 222 determines whether or not any one of the received abnormality signals has a severe abnormality level (step S1111). Here, the seriousness flag is confirmed, and when the seriousness flag is set, it is determined as being present.

  When it is determined that there is an abnormal signal with a severe abnormality level (S1111; Yes), the arithmetic unit 222 sets red for the indicator 321 (step S1112). And as display control of the indicator 321, it sets so that blink control may be performed (step S1113), and a process is complete | finished.

  On the other hand, when there is no abnormal signal with a severe abnormality level (S1111; No), the arithmetic unit 222 sets yellow to the indicator 321 (step S1114). And it sets so that lighting control may be performed (step S1115), and a process is complete | finished.

  As described above, the display system that displays the operating state of the work machine (hydraulic excavator 100) according to the present embodiment determines abnormality of the excavator 100 based on the monitor 210 that displays information and the vehicle body information signal. An abnormality determination unit. A monitor 210 is provided in the pillar 146 of the cab 126. The display image 300 displayed on the display unit of the monitor 210 includes an instrument display region 350 in which an instrument display indicating a signal value of a vehicle body information signal received from the sensor 240 provided in the work machine is disposed, An alarm display area 320 on which a rectangular indicator 321 is displayed based on a vehicle body information signal. The alarm display area 320 is provided in an area on the display image 300 that is at least one of both ends in the first direction parallel to one side of the display image 300 and does not overlap the instrument display area 350. .

  In addition, the work machine of the present embodiment receives and outputs a vehicle body information signal from the sensor 240 provided in the work machine, detects an abnormality of the work machine based on the vehicle body information signal, and outputs an abnormality signal. Is generated based on the vehicle body controller 230 and the vehicle body information signal and the abnormality signal output from the vehicle body controller 230, and the image data of the rectangular display image 300 displayed on the monitor 210 is generated. And a monitor display controller 220 for outputting to the monitor 210. The monitor display controller 220 arranges an instrument display indicating the signal value of the vehicle body information signal, and is parallel to one side of the rectangular display image 300 on the display image 300 when the abnormal signal is received. A rectangular indicator 321 is arranged in an area which is at least one of both end portions in the first direction and does not overlap with the instrument display, thereby generating the image data.

  As described above, in this embodiment, when an abnormality occurs, the indicator 321 indicating the occurrence of the abnormality is displayed as an alarm in the vehicle body information display area 310 that is the same as the vehicle body information display. At this time, the indicator 321 is displayed in an area that does not overlap the instrument display displayed in the same vehicle body information display area 310, and the layout of the instrument display is not changed.

  Therefore, according to the present embodiment, the alarm is easily visible to the operator who is gazing at the instrument display displayed in the instrument display area 350 from the normal time, and the instrument display that is the main element of display is visually recognized. It does not inhibit. Since two human eyeballs are arranged on the left and right (horizontal), the visual information away from the center of the visual field is at the end in the horizontal direction (X-axis direction) rather than in the vertical direction (Y-axis direction). It is easier to recognize. Therefore, when the indicator is displayed in the vehicle body information display area, the indicator display is provided at both the left and right ends in the area even if it is displayed around the main vehicle body information to be displayed preferentially. It is easier to recognize.

  That is, according to the present embodiment, when an abnormality occurs in the excavator 100, the operator can instantly grasp the occurrence of the abnormality while minimizing the movement of the line of sight.

  Further, according to the present embodiment, the display mode (display color, display pattern) of the indicator 321 notifying abnormality is changed according to the abnormality level. For this reason, according to the present embodiment, the operator can not only instantly and easily know the occurrence of the abnormality of the excavator 100 but also the abnormality level.

  Further, the indicator 321 does not include graphics or text data. As described above, only the color is used. In addition, this color also conforms to ISO as described above. For this reason, the operator can not only grasp the abnormal level intuitively but also does not depend on the language or customs of the country in which the excavator 100 is used. For this reason, there is no need to change the setting for each export destination.

  Further, in this embodiment, in the case of “severe” with a high degree of urgency, a blinking display may be performed. With this configuration, the degree of urgency is further emphasized, and the visibility of the operator is increased in an emergency.

  In the present embodiment, for example, when the height of the indicator 321 is changed according to the degree of urgency, the height direction of the bar of the signal value bar graph 311 may be matched with the height direction of the indicator 321. . With this configuration, the operator can more intuitively understand the occurrence of an abnormal situation.

  In the embodiment described above, the excavator 100 is described as an example of the work machine, but the work machine is not limited to the excavator 100. The above embodiment can be applied to any vehicle such as a transport vehicle other than the hydraulic excavator 100, such as a dump truck, a general truck, a wheel loader, a grader, a dozer, and the like.

  In addition, this invention is not limited to embodiment mentioned above, Various modifications are included. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described.

DESCRIPTION OF SYMBOLS 100: Hydraulic excavator, 101: Traveling body, 102: Revolving body, 103: Turning apparatus, 110: Traveling apparatus, 111: Side frame, 112: Drive wheel, 113: Driven wheel, 114: Crawler belt, 120: Upper frame, 121 : Front working mechanism, 122: Boom, 123: Arm, 124: Bucket, 125: Building, 126: Driver's cab, 127: Sidewalk, 128: Ladder, 145: Driver's seat, 146: Pillar, 147: Operation unit, 148 : Input interface,
210: Monitor, 211: Display area, 220: Monitor display controller, 221: Graphic interface, 222: Computing device, 223: CAN interface, 224: Memory, 225: Storage device, 230: Body controller, 240: Sensor,
300: Display image, 310: Body information display area, 311: Bar graph, 312: Needle meter, 320: Alarm display area, 321: Indicator, 330: Icon display area, 331: Icon, 340: Text display area, 341 : Text message, 350: Instrument display area

Claims (7)

A display system for displaying an operating state of a work machine,
A monitor that displays information;
An abnormality determination unit that determines abnormality of the work machine based on a vehicle body information signal received from a sensor provided in the work machine,
The display image displayed on the display unit of the monitor is
An instrument display area in which an instrument display indicating a signal value of the vehicle body information signal is arranged;
An alarm display area in which a rectangular indicator is displayed based on the vehicle body information signal,
The alarm display area is provided in an area on the display image that is at least one of both ends in a first direction parallel to one side of the display image and does not overlap the instrument display area. Display system. The display system according to claim 1,
The display system is characterized in that the indicator is displayed as a rectangle colored in a color different from the background of the display image in the display image. The display system according to claim 1,
The abnormality signal output when the abnormality determination unit detects an abnormality of the work machine based on the vehicle body information signal includes information indicating the level of the abnormality,
The display system is characterized in that the higher the level of abnormality, the larger the area displayed in the display image. The display system according to claim 3,
The abnormality signal output when the abnormality determination unit detects an abnormality of the work machine based on the vehicle body information signal includes information indicating the level of the abnormality,
The display system is characterized in that the higher the abnormality level is, the longer the length of the second direction orthogonal to the first direction is displayed in the display image. The display system according to claim 4,
The instrument display includes a bar graph or a needle meter in which a second direction orthogonal to the first direction is an increase / decrease direction of a display amount. The display system according to claim 1,
The abnormality signal output when the abnormality determination unit detects an abnormality of the work machine based on the vehicle body information signal includes information indicating the level of the abnormality,
The display system is characterized in that the indicator is displayed in a different lighting pattern according to the level of the abnormality. The display system according to claim 2,
The abnormality signal output when the abnormality determination unit detects an abnormality of the work machine based on the vehicle body information signal includes information indicating the level of the abnormality,
The display system is characterized in that the indicator is displayed in a different color in the display image according to the abnormality level.