JP6957384B2 - Work machine and display control method of work machine - Google Patents

Description

The present invention relates to a work machine and a display control method for the work machine.

Conventionally, Patent Document 1 discloses a working machine provided with a display device for displaying information about the working machine. In the working machine of Patent Document 1, when a special operation of turning the ignition key from OFF to ON while pressing the switch is performed, a setting screen different from the normal screen is displayed on the display unit of the liquid crystal display or the like.

Japanese Unexamined Patent Publication No. 2013-23982

In the technique of Patent Document 1, even if the ignition key is turned from OFF to ON while pressing the switch, if the switch is released before switching to the setting screen mode, it may not be recognized as a special operation. In particular, when a control device operating in an operating system is used as a display control device that controls the display device, it may take time for the startup process. For this reason, it takes a long time to switch to the setting screen mode, and the operator tends to take his / her hand off the switch before switching to the setting screen mode, so that a case where a special operation is not properly recognized tends to occur.

The present invention has been made to solve the above-mentioned problems of the prior art, and provides a work machine and a display control method of the work machine capable of appropriately detecting a display switching operation performed at startup. The purpose is to do.

In the work machine according to one aspect of the present invention, a work device, a work control device for controlling the work device, a display device, a display control device for controlling the display device, and an operator input instructions. A work machine provided with an input operation tool, and the time required for the start processing of the display control device is longer than the time required for the start process of the work control device, and the start operation of the work machine is performed to perform the display. When the power supply to the control device and the work control device is started, the display control device starts the start process including the start of the operating system, and the work control device starts the start process including the start of the control program. The work control device determines whether or not a predetermined special operation has been performed at the time of the start-up operation, and holds special operation information indicating whether or not the special operation has been performed. Before the handshake communication is established, the special operation information is continuously transmitted to the display control device or at predetermined time intervals, and the display control device performs the above-mentioned before the handshake communication with the work control device is established. The special operation information is received, the presence or absence of the special operation is determined according to the received special operation information, and when the special operation is not performed, the normal screen is displayed on the display device and the special operation is performed. In this case, the display device is displayed with a special setting screen for setting the setting information of the work machine.

According to the above configuration, the display switching operation performed at startup can be appropriately detected.

It is the schematic of the control block of a working machine. It is a front view of the display part of a display device. It is a figure which shows the control flow of a display device. It is a figure which shows an example of the setting screen. It is a side view of the backhoe.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.
As shown in FIG. 5, the working machine 1 includes a lower traveling device 2 and an upper body 3. Although the backhoe is shown as an example of the working machine in FIG. 5, the working machine to which the present invention can be applied is not limited to the backhoe, and is, for example, a wheel loader, a skid steer loader, a compact truck loader, a tractor, or the like. You may. The front side (left side of FIG. 5) of the driver seated in the driver's seat of the work machine is the front, the rear side of the driver (right side of FIG. 5) is the rear, and the left side of the driver (front side of FIG. 5) is the left. The right side of the driver (the back side of FIG. 5) will be described as the right side.

The traveling device 2 includes a pair of left and right traveling bodies 4 having a rubber covering band. As the traveling device 2, a crawler type traveling device in which the traveling body 4 is driven by a traveling motor is adopted. A dozer 5 is provided at the front portion of the traveling device 2.
The machine body 3 has a swivel table 12 and a working device (excavation device) 13. The swivel base 12 is rotatably supported on the traveling device 2 around the axis in the vertical direction via the swivel device 11. The working device 13 is provided at the front portion of the swivel table 12. The swivel table 12 is equipped with a prime mover 8, a radiator, a driver's seat 9, a fuel tank, a hydraulic oil tank, and the like. Further, the swivel table 12 is equipped with a cabin 14 that surrounds the driver's seat 9. The prime mover 8 is a diesel engine, a gasoline engine, an electric motor, or the like. In this embodiment, the prime mover 8 is a diesel engine. The prime mover 8 may be a hybrid having both an engine (diesel engine, gasoline engine) and an electric motor.

The working device 13 has a swing bracket 17, a boom 18, an arm 19, and a bucket 20. The swing bracket 17 is swingably supported by a support bracket 16 provided at the front portion of the swivel base 12. Further, the swing bracket 17 is connected to a swing cylinder provided in the swivel base 12. The boom 18 is supported by a swing bracket 17 so as to be vertically swingable. The boom 18 swings due to expansion and contraction of a boom cylinder 22 interposed between the boom 18 and the swing bracket 17. The arm 19 is supported by the boom 18 so as to be vertically swingable. The arm 19 swings due to expansion and contraction of an arm cylinder 23 interposed between the arm 19 and the boom 18. The bucket 20 is supported by the arm 19. The bucket 20 swings due to expansion and contraction of a bucket cylinder 21 interposed between the bucket 20 and the arm 19.

Instead of the bucket 20, attachments such as a grapple, a thumb, a breaker, a brush cutter, a tilt bucket, and a rotary grabble can be attached to the tip of the arm 19. For convenience of explanation, a grapple, a thumb, a breaker, a brush cutter, a tilt bucket, a rotary grabble, etc., which are attached instead of the bucket 20, are referred to as auxiliary attachments. At the tip of the arm 19, a hydraulic oil supply unit (not shown) for supplying hydraulic oil to an actuator for operating the auxiliary attachment is provided.

FIG. 1 shows a schematic view of a control block of the work machine 1. As shown in FIG. 1, the work machine 1 includes a work control device 50, a display device 60, a display control device 65, and an input operation tool 70. The work control device 50 and the display control device 65 can communicate with each other by an in-vehicle network N1 such as CAN (Controller Area Network) or FlexRay. Further, the work control device 50 and the display control device 65 are connected to the power supply line P1 separately from the in-vehicle network N1. The power supply line P1 is connected to a power supply unit 55 such as a battery, and by turning the power switch PW1 switchable by the work control device 50 from OFF to ON, the work control device 50 to the display control device 65 and the display device 60 Can be powered.

The input operating tool 70 is connected to the work control device 50 via the first line (first connection line) 71, and is a display control device via the second line (second connection line) 72 branched from the first line 71. It is connected to 65. The input operating tool 70 is, for example, a rotary encoder switch (jog dial switch), a push switch, or the like. Therefore, by operating the input operation tool 70, an input signal indicating the operation content of the operator is input to both the work control device 50 and the display control device 65.

Further, an ignition switch 75 that can be switched between ON and OFF is connected to the work control device 50. The ignition switch 75 may be connected to the display control device 65. The engine starts when the ignition switch 75 is turned from OFF to ON. When the ignition switch 75 is turned from ON to OFF, the engine stops. The OFF and ON of the ignition switch 75 are input to the work control device 50 and the display control device 65.

The display device 60 is composed of a panel such as a liquid crystal display, and can perform various displays related to the working machine 1 and various settings related to the working machine 1. The display device 60 is arranged at a position visible to the operator seated in the driver's seat 9 in the cabin 14 (for example, in front of, diagonally forward, or to the side of the driver's seat 9).
The display control device 65 is a device that controls the display on the display device 60, and includes an arithmetic circuit (electrical / electronic circuit) such as a CPU (Central Processing Unit) and a storage medium for storing a control program or the like. The arithmetic circuit controls the display of the display device 60 by executing the control program. In this embodiment, the display control device 65 operates on an operating system (OS) such as Linux (registered trademark).

The work control device 50 includes an arithmetic circuit (electrical / electronic circuit) such as a CPU (Central Processing Unit) and a storage medium for storing a control program or the like, and the arithmetic circuit executes the control program to execute the work machine 1. Control the operation of each part of. In the present embodiment, the work control device 50 is operated by embedded software (control program) or the like, and is operated by embedded software or the like rather than the display control device 65 which is operated by the operating system. The time required for the start-up process of the control device 50 is shorter. The work control device 50 may be a control device that operates in the operating system. The work control device 50 performs, for example, unload control, hydraulic control, auto idle control (AI control), boom height control, arm height control, and the like.

Next, unload control, flood control control, auto idle control (AI control), boom height control, and arm height control will be described.
The work control device 50 is connected to a lock operation member 25 provided on the side of the driver's seat 9 and an unload valve 26 that can be switched by operating the lock operation member 25. In the unload control, when the lock operating member 25 is operated in one direction (when the lock operating member 25 is operated in the direction of opening the passage between the driver's seat 9 and the cockpit), the work control device 50 shuts off the unload valve 26. By switching to the position 26A, the supply of hydraulic oil to the hydraulic actuators 27 such as the bucket cylinder 21, the boom cylinder 22, and the arm cylinder 23 is stopped. On the other hand, in the unload control, when the lock operation member 25 is operated in the other direction (when the lock operation member 25 is operated in the direction of blocking the passage between the driver's seat 9 and the cockpit), the work control device 50 uses the unload valve 26. Is switched to the supply position 26B to supply hydraulic oil to the hydraulic actuator 27.

Further, the work control device 50 is connected to a control device 28 provided in the vicinity of the driver's seat 9 and a control valve 29 operated by the control of the control device 28. In hydraulic control, when the control device 28 is operated from the neutral position to one side, the work control device 50 supplies hydraulic oil to the hydraulic actuator 27 by switching the control valve 29 corresponding to one side to the first position 29A. conduct. Further, in the hydraulic control, when the control device 28 is operated from the neutral position to the other opposite to the one, the work control device 50 switches the control valve 29 corresponding to the other to the second position 29B, so that the hydraulic actuator 27 Supply hydraulic oil to. That is, in the hydraulic control, the control valve 29 is switched to one or the other according to the operation of the control device 28 to change the supply direction of the hydraulic oil to the hydraulic actuator 27 and operate the hydraulic actuator 27.

The work control device 50 includes a governor angle (governor position) from the governor sensor, an accelerator lever operation amount (angle), an idle switch (AI-SW) on / off signal, an engine rotation speed from the engine rotation sensor, and an arm. Signals such as the angle of the boom and the angle of the boom are input.
In AI control, when the control device 28 is operated, the engine speed is increased or decreased according to the amount of operation of the accelerator lever, and when the control device 28 is not operated, the engine speed is fixed to the idling state. ..

In the boom height control, when the height of the boom 18 reaches a preset upper limit value of the boom height, the raising operation of the boom 18 is stopped regardless of the operation of the control device 28. In the boom height control, the angle of the boom is input to the work control device 50 when the boom 18 is raised and operated by the control device 28. Then, when the boom angle input to the work control device 50 reaches the upper limit value, the work control device 50 stops the boom raising operation by switching the control valve 29 corresponding to the boom 18.

The arm angle control stops the scraping operation of the arm 19 regardless of the operation of the control device 28 when the arm angle reaches the upper limit value or the lower limit value of the preset arm angle (arm angle). Is. Specifically, in the arm angle control, the arm angle is input to the work control device 50 when the control device 28 is performing the scraping operation of the arm 19. Then, when the arm angle input to the work control device 50 reaches the upper limit value or the lower limit value, the work control device 50 switches the control valve 29 corresponding to the arm 19 to the neutral position, whereby the arm 19 Stop the scraping operation.

As shown in FIG. 2, the display device 60 can display the setting screen Q1 and the operation screen Q2. The setting screen (first screen) Q1 is a screen (input screen) for displaying setting information related to various settings (machine settings) of the work machine 1. On the setting screen Q1, for example, setting information corresponding to machine settings such as height control setting, AI control setting, and arm limit setting is displayed. The operation screen (second screen) Q2 is a screen for displaying the operation information of the work machine 1, and displays the operation information such as the engine speed, the remaining fuel amount, the water temperature, and the time (time).

In the present embodiment, when the operator performs a predetermined operation (special operation) via the input operation tool 70, the display control device 65 causes the display device 60 to display the setting screen (special screen) Q1. When the above-mentioned predetermined operation (special operation) is not performed via the input operation tool 70, the display device 60 displays the operation screen (normal screen) Q2. More specifically, the display device 60 includes a variable display unit 61a and a fixed display unit 61b. The variable display unit 61a is a portion where the display content is variable, and is composed of a panel such as a liquid crystal display. The variable display unit 61a can display either the setting screen Q1 or the operation screen Q2, and can be switched to either the setting screen Q1 or the operation screen Q2 by operating the input operation tool 70. The fixed display unit 61b is a portion where the display content is fixed, and is composed of an LED or the like. The fixed display unit 61b displays the presence or absence of a warning or the like of the work machine 1 by turning on or off the LED.

The time required for the start-up process in which the display control device 65 reads and executes the operation system program and the like is longer than the time required for the start-up process in which the work control device 50 reads and executes the control program and the like. In other words, when the ignition switch 70 is turned on and power is supplied to the display control device 65 and the work control device 50, the display control device 65 starts the start-up process including the start-up of the operating system, while the work control. The device 50 starts the start-up process including the start-up (execution) of the control program from the standby state, and the start-up process of the work control device 50 is completed earlier than the start-up process of the display control device 65, and the display control device 65 is delayed. Is completed and the display of the display device 60 is started. That is, the completion of the start-up sequence at the start of power supply in the display control device 65 (the ignition switch 70 is ON) takes longer than the completion of the start-up sequence at the start of power supply in the work control device 50. The display control device 65 shifts to the display process following the start process, and in the display process, causes the display device 60 to display either the setting screen Q1 or the operation screen Q2.

FIG. 3 is a diagram showing a display control flow of the display device 60 at the time of starting the work machine 1.
Even when the ignition switch 75 is OFF, the work control device 50 is supplied with electric power from the power supply unit 55, and the work control device 50 is on standby in a state of waiting for input. Then, the work control device 50 determines whether or not the ignition switch 75 has been switched to ON in the input waiting state (S1).

If it is determined in S1 that the ignition switch 75 has not been switched to ON (S1, No), the work control device 50 continues the process of S1 and monitors that the ignition switch 75 is switched to ON.
On the other hand, when it is determined in S1 that the ignition switch 75 has been switched to ON, the work control device 50 starts a control program that performs unload control, hydraulic control, AI control, boom height control, arm height control, and the like. (S2), the power switch PW1 of the power supply line P1 is switched from OFF to ON to start power supply to the display control device 65. When the power supply to the display control device 65 is started, the display control device 65 starts the operation system activation process (S11). In the state where the ignition switch 75 is OFF, both the work control device 50 and the display control device 65 may be placed in the input waiting state to monitor that the ignition switch 75 is turned ON, and only the display control device 65 may be used. The display control device 65 may cause the work control device 50 to start the start processing in the input waiting state.

Further, after starting the activation process, the work control device 50 determines whether or not a special operation (predetermined operation) has been performed via the input operation tool 70 (S3). In the present embodiment, the above-mentioned special operation is an operation of switching the ignition switch 75 from OFF to ON while pressing a predetermined push switch on the input operating tool 70. Specifically, in the present embodiment, the work control device 50 presses a predetermined push switch when the ignition switch 75 is switched from OFF to ON (or when the process of S3 is started). In that case, it is determined that a special operation has been performed. The processing of S3 may be performed simultaneously with the detection of ON of the ignition switch 75 (S1) or in parallel with the activation processing of the control program after the detection of ON of the ignition switch 75 (S1). It may be performed after the start processing of the control program in the device 50. That is, the work control device 50 executes the process of S3 after detecting the ON of the ignition switch 75.

When it is determined in S3 that no special operation has been performed, the work control device 50 stores information (special operation information = none) indicating that no special operation has been performed as special operation information (S4). On the other hand, when it is determined that the special operation has been performed in S3, the work control device 50 stores (retains) information (special operation information = present) indicating that the special operation has been performed as the special operation information (S5). .. The special operation information may be stored in a storage medium such as RAM, or may be stored in a register, cache, or the like provided in the arithmetic circuit.

After that, the work control device 50 starts transmitting the special operation information (control signal) stored in S4 or S5 to the display control device 65 (S6). The special operation information may be transmitted continuously or at predetermined intervals (for example, every several msec). Further, the special operation information may be transmitted only when the special operation is performed, or may be transmitted only when the special operation is not performed.

Then, the work control device 50 determines whether or not a predetermined time has elapsed since the start of transmission of the special operation information (S7), and if not, continues to transmit the special operation information. Monitor the passage of a predetermined time. On the other hand, when it is determined in S7 that the predetermined time has elapsed, the work control device 50 ends the transmission of the special operation information (S8), and ends the display control process at the time of activation. The process of S7 may be omitted, and the special operation information may be continuously transmitted until the ignition switch 75 is switched to OFF. Alternatively, when the display control device 65 receives the special operation information, the reception completion notification is returned to the work control device 50, and the work control device 50 continues to transmit the special operation information until the reception completion notification is received. good. Alternatively, when the display control device 65 receives the special operation information, the reception completion notification is returned to the work control device 50, and the work control device 50 receives the reception completion notification or starts transmission for a predetermined time. The special operation information may be continuously transmitted until the elapse has passed.

When the display control device 65 starts the start processing of the display control device 65 in S11 (after the start of the operation system starts), subsequently reads the display control program, and the preparation for receiving the special operation information is completed. (S12), the special operation information transmitted from the work control device 50 is received (S13). After receiving the special operation information in S13, the display control device 65 determines whether or not the special operation has been performed (whether or not the special operation information = yes or not) based on the received special operation information (S14). ). When the work control device 50 is configured to transmit the special operation information only when the special operation is performed, or when the work control device 50 is configured to transmit only when the special operation is not performed, the special operation information is received. It may be determined whether or not a special operation has been performed depending on whether or not the operation has been performed.

When it is determined that the special operation has been performed in S14, the display control device 65 causes the display device 50 to display the setting screen (special screen) Q1 by the control program for the setting screen (special screen) (S15), and at the time of startup. Ends the display control of. On the other hand, when it is determined that the special operation has not been performed in S14, the display control device 65 causes the display device 50 to display the normal screen Q2 by the control program for the normal screen (S16), and ends the display control at startup. do.

That is, when the display control device 65 shifts from the start processing (S11) to the display processing (S15, S16), if the work control device 50 holds the special operation information, the display control device 65 corresponds to the special operation information. Display the setting screen (special screen) Q1 on the display device.
The work control device 50 and the display control device 65 execute a connection process such as a handshake before the display process of the setting screen Q1 or the normal screen Q2. In the present embodiment, the work control device 50 is a hand. transmits the special operation information before shake, the display control unit 65 can receive special operation information before Ru handshake box. As a result, the display of the setting screen Q1 can be executed quickly.

Further, in the present embodiment, the operation of switching the ignition switch 75 from OFF to ON while pressing a predetermined push switch on the input operating tool 70 is a special operation, but the method of the special operation is not limited to this. The special operation may be any operation that can be distinguished from the normal start-up operation, for example, an operation in which the switching operation of the input operation tool 70 (for example, a pressing operation such as ON / OFF) is continuously repeated within a predetermined time. It may be.

Further, in the present embodiment, the work control device 50 continuously outputs special operation information (control signal) to the display control device 65, but the present invention is not limited to this. For example, the display control device 65 may request the work control device 50 to transmit the special operation information, and the work control device 50 may transmit the special operation information to the display control device 65 as a response to the transmission request. ..

Further, in the present embodiment, the work control device 50 supplies electric power to the display control device 65 by turning on the power switch PW1, but the present invention is not limited to this. For example, a power switch that is switched in conjunction with the ignition switch 75 may be built in the display control device 65, and power may be supplied to the display control device 65 by the power switch when the ignition switch 75 is turned on. ..

Next, an example of the display processing of the setting screen Q1 and the operation screen Q2 in the display control device 65 will be described. However, the display processing of the setting screen Q1 and the operation screen Q2 is not limited to the contents described later.
As shown in FIG. 4, when displaying the setting screen Q1, the display control device 65 sets a plurality of selection items for machine setting, for example, "height control setting", "AI control setting", and "arm limit setting". Is displayed on the setting screen Q1. Here, when the operator operates the input operation tool 70 and a predetermined operation is input to the display control device 65, the display control device 65 moves the cursor K according to the operation information to select the selected item. Item candidates (called selection item candidates) can be changed. On the setting screen Q1, when the cursor K is placed on the selection item candidate "AI restriction setting" and the operator operates the input operation tool 70 to input an input signal indicating a decision to the display device 60, the display control device 65 Determines the selection item. Then, after the selection item of the "AI limit setting" is determined, the display control device 65 switches the display of the setting screen Q1 to the setting screen Q1-1 for setting the idling speed. The display control device 65 changes the value of the idling speed displayed on the setting screen Q1-1 in response to the operation information input from the input operation tool 70 to the display control device 65 on the setting screen Q1-1. (Increase or decrease). When the input operation tool 70 is operated after changing the idling speed on the setting screen Q1-1, the changed idling speed value (set value) displayed on the setting screen Q1-1 is updated as a new idling speed. can do. When the input operating tool 70 is operated after updating the idling speed, the display control device 65 displays the setting screen Q1-2 indicating that the setting of the idling speed is completed on the display device 60, and then the display device 65. The screen displayed on the display device 60 can be switched from the setting screen Q1-1 to the operation screen Q2.

Further, when displaying the operation screen Q2, the display control device 65 acquires operation information such as the engine speed, the remaining fuel amount, and the water temperature output from the work control device 50, and uses the acquired operation information as the operation screen Q2. Is displayed at a predetermined position. Here, when the operator operates the input operating tool 70, the display control device 65 adds the cumulative operating time of an hour meter or the like to the operation screen Q2 and displays it in response to the operation information, or displays the engine speed. The currently attached attachment can be displayed in the display part of.

The work machine according to one aspect of the present invention includes a work device 13, a work control device 50 that controls the work device 13, a display device 60, a display control device 65 that controls the display device 60, and an operator. It is a work machine provided with an input operation tool 70 for inputting an instruction, and the time required for the start processing of the display control device 65 is longer than that of the work control device 50. When a predetermined operation is performed on the input operating tool 70 before shifting to the display processing, the operation information corresponding to the predetermined operation is held, and the display control device 65 shifts from the activation process to the display process. When the work control device 50 holds the operation information, the display device 60 displays a predetermined screen corresponding to the operation information.

Further, the display control method of the work machine according to one aspect of the present invention includes the work device 13, the work control device 50 that controls the work device 13, the display device 60, and the display control device that controls the display device 60. A display control method for a work machine comprising 65 and an input operation tool 70 for inputting instructions by an operator, and the time required for starting processing of the display control device 65 is longer than that of the work control device 50. A step in which the work control device 50 holds operation information corresponding to a predetermined operation when a predetermined operation is performed on the input operation tool 70 before shifting from the start processing to the display process, and a display control device. When the work control device 50 holds the operation information when the 65 shifts from the start processing to the display processing, the step of causing the display control device 65 to display a predetermined screen corresponding to the operation information on the display device 60. And have.

According to the above-mentioned work machine and the display control method of the work machine, it is possible to appropriately detect the display switching operation performed at the time of startup. For example, even if it takes time to start the display control device 65 and the display control device 65 cannot obtain the operation information of the input operation tool 70 performed before the start is completed, the work control device 50 performs the operation information. Is held, so that a predetermined screen corresponding to the operation information can be displayed.

Further, the display control device 65 causes the display device 60 to display a setting screen for setting the setting information of the work machine 1 as a predetermined screen. According to this, when the display control device 65 is started up by the start-up process at the time of start-up, the setting screen for making various settings can be surely displayed.
Further, the input operation tool 70 is connected to both the display control device 65 and the work control device 50. According to this, both the display control device 65 and the work control device 50 side can acquire the operation information of the input operation tool 70, and the operation information can be surely acquired even under various situations such as activation processing. It is possible to control the display of a predetermined screen based on the operation information.

Further, the work machine 1 is provided with an ignition switch 75 that can be switched between ON and OFF, and the predetermined operation is an operation of switching the ignition switch 75 from OFF to ON while operating a predetermined position of the input operating tool. It may be. According to this, when the ignition switch 75 switches from the state in which the drive of the prime mover 8 is stopped to the state in which the drive of the prime mover 8 is started, that is, when the prime mover 8 is started, it is determined according to the operation of the input operating tool 70. The screen of is surely displayed.

Further, the work control device 50 outputs operation information to the display control device 65 before executing the connection process with the display control device 65. According to this, it is possible to quickly display a predetermined screen on the display device 60.
It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown not by the above description but by the scope of claims, and it is intended that all modifications within the meaning and scope equivalent to the scope of claims are included.

1 Work machine 13 Work device 50 Work control device 60 Display device 70 Input controller 75 Ignition switch Q1 Setting screen Q2 Operation screen

Claims (5)

The display control includes a work device, a work control device for controlling the work device, a display device, a display control device for controlling the display device, and an input operation tool for an operator to input instructions. The time required for the start-up process of the device is longer than the time required for the start-up process of the work control device.
When the start operation of the work machine is performed and the power supply to the display control device and the work control device is started, the display control device starts the start process including the start of the operating system, and the work control device starts. Starts the start-up process, including the start-up of the control program,
The work control device determines whether or not a predetermined special operation has been performed at the time of the start operation, and holds special operation information indicating whether or not the special operation has been performed, and has a hand with the display control device. Before the shake communication is established, the special operation information is continuously or at predetermined time intervals to be transmitted to the display control device.
The display control device receives the special operation information before the handshake communication with the work control device is established, determines the presence or absence of the special operation according to the received special operation information, and performs the special operation. A work machine that displays a normal screen on the display device when it is not displayed, and displays a special setting screen for setting setting information of the work machine on the display device when a special operation is performed . The work control device and the display control device start the handshake communication before the display process of the normal screen or the special setting screen, and the normal screen or the special setting screen before the handshake communication is established. The working machine according to claim 1, wherein the display device is displayed. The work machine according to claim 1 or 2, wherein the input operation tool is connected to both the display control device and the work control device. The work control device transmits the special operation information to the display control device only when the special operation is performed or when the special operation is not performed.
The working machine according to any one of claims 1 to 3, wherein the display control device determines whether or not the special operation has been performed depending on whether or not the special operation information has been received. The display control device includes a work device, a work control device that controls the work device, a display device, a display control device that controls the display device, and an input operation tool for an operator to input instructions. This is a display control method for a work machine in which the time required for the start-up process of the work control device is longer than the time required for the start-up process of the work control device.
When the start operation of the work machine is performed and the power supply to the display control device and the work control device is started, the display control device starts the start process including the start of the operating system, and the work control The step at which the device initiates the startup process, including the activation of the control program,
A step in which the work control device determines whether or not a predetermined special operation has been performed at the time of the activation operation, and holds special operation information indicating whether or not the special operation has been performed.
A step in which the work control device continuously or at predetermined time intervals transmits the special operation information to the display control device before handshake communication with the display control device is established.
The display control device receives the special operation information before the handshake communication with the work control device is established, determines the presence or absence of the special operation according to the received special operation information, and performs the special operation. If not, the normal screen is displayed on the display device, and if a special operation is performed, the special setting screen for setting the setting information of the work machine is displayed on the display device.
Display control method for working machines equipped with.

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