JP2011137345A - Monitoring device for construction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring device for a construction machine, configured so that a display mode can be switched according to the level of an operator's familiarity or skillfulness. <P>SOLUTION: The monitoring device for construction machine includes a key switch 21; a display 18; an operation pattern switching device 22 for switching the motions of operation levers 17a, 17b and the motion of a working device 13 operated by operation levers 17a, 17b; and an arithmetic controller 20 for outputting data for displaying an operation pattern selected by the operation pattern switching device 22 on a display screen 18a of the display 18. The arithmetic controller 20 is configured so that a first display mode for displaying operation pattern information related to the operation pattern preferentially on the display screen 18a of the display 18 and a second display mode for displaying non-operation pattern information other than the information related to the operation pattern on the display screen 18a of the display 18 can be switched to each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a construction machine monitoring device, and more particularly, to an indicator arranged in the vicinity of a driver's seat of an operation pattern by a combination of an operation direction of an operation lever and an operation actuator in a construction machine such as a hydraulic excavator or a hydraulic crane. The present invention relates to a monitoring device for a construction machine that displays a monitor.

  2. Description of the Related Art Conventionally, an operation lever in a construction machine such as a hydraulic excavator or a hydraulic crane has a different operation pattern depending on a combination of an operation direction and an operation actuator depending on a manufacturer of the construction machine. At present, a construction machine having mainly four operation patterns. Is manufactured (see, for example, Patent Document 1).

  For example, in the construction machine having the operation pattern shown in FIG. 5A, when the operation lever 101 is tilted in the front and rear directions YF and YB of the driver's seat, the arm is dumped and excavated, and the operation lever 101 is moved to the driver's seat. When the tilting operation is performed in the left and right directions XL and XR, the turntable turns left and right.

  Further, in the construction machine having the operation pattern shown in FIG. 5B, when the operation lever 101 is tilted in the front and rear directions YF and YB of the driver's seat, the swivel turns to the left and right, and the operation lever 101 is operated. When the seat is tilted in the left and right directions XL and XR, the arm is dumped and excavated.

  For this reason, an operator familiar with a construction machine having a certain operation pattern can use a construction machine having another operation pattern in the same operation method as that of the previous construction machine, that is, one construction machine. Is provided with an operation pattern switching device that can switch the operation pattern according to the preference of the worker, and the operation pattern is displayed on the display surface of the display device. The construction machine displayed above is also known from, for example, the above-mentioned Patent Document 1. In the display in this construction machine, only the operation pattern is displayed on the display surface.

Japanese Unexamined Patent Application Publication No. 2004-1000071.

  As described above, in a conventional monitor device in a construction machine that displays an operation pattern based on a combination of an operation direction of an operation lever and an operation actuator, only information related to the operation pattern is displayed on the display surface. However, in today's construction machines, the function is complicated, and it is desired that information other than the operation pattern, that is, non-operation pattern information can be switched and displayed on the display surface. For example, depending on the familiarity and skill level of each worker, it is easier to work without displaying the operation pattern on the display surface during the work, instead displaying the non-operation pattern information, or There are cases where it is easier to work by displaying the operation pattern and the non-operation pattern information at the same time.

Therefore, in view of the above circumstances, there arises a technical problem to be solved in order to provide a construction machine monitoring device that can switch the display mode according to the familiarity and skill level of the operator, The present invention aims to solve this problem.

  The present invention has been proposed to achieve the above object, and the invention according to claim 1 is directed to a key switch, a display, a movement of an operation lever, and a movement of a working device operated by the operation lever. In the construction machine monitoring apparatus, comprising: an operation pattern switching device for switching; and an operation controller for outputting data for displaying the operation pattern selected by the operation pattern switching device on a display surface of the display device. Is a first display mode in which operation pattern information related to the operation pattern is preferentially displayed on the display surface of the display, and non-operation pattern information other than information related to the operation pattern from the first display mode Is provided so that it can be switched to the second display mode in which the display is displayed on the display surface of the display.

  According to this configuration, the data information related to the operation pattern from the first display mode that preferentially displays the operation pattern information related to the operation pattern according to the operator's familiarity, skill level, or situation. The non-operation pattern information other than the second display mode can be displayed, and vice versa.

  According to a second aspect of the present invention, in the configuration according to the first aspect, the arithmetic controller outputs data for reducing the operation pattern information on the display surface of the display unit in the second display mode. A monitoring device for construction machinery is provided.

  According to this configuration, in the second display mode for displaying the non-operation pattern information, the operation pattern information can be reduced and displayed on the same display surface simultaneously with the non-operation pattern information.

  According to a third aspect of the present invention, in the configuration according to the first or second aspect, the arithmetic controller switches between the first display mode and the second display mode by a signal of a display information switching unit operated externally. Provided is a monitoring device for a construction machine which is made to perform.

  According to this configuration, when an externally operated display information switching means, such as an external operation switch, is operated, the first display mode is changed to the second display mode or the reverse second display mode is changed to the first by the operation signal. Each display mode can be switched.

  According to a fourth aspect of the present invention, in the configuration according to the first, second, or third aspect, the arithmetic and control unit preferentially outputs the operation pattern information to the display unit when the key switch is turned on. A monitoring device for construction machinery is provided.

  According to this configuration, when the key switch is turned on, the operation pattern information is preferentially output to the display. This is because there is a slight possibility that the operator is changed by another person when the key switch is turned on. This display allows the operator to re-recognize the operation pattern. .

  According to a fifth aspect of the present invention, in the configuration according to the first, second, third or fourth aspect, when the operation controller detects a change in the operation pattern, the operation pattern information is given priority to the display device. A monitoring device for construction machinery is provided.

  According to this configuration, when the operation pattern is changed, the changed operation pattern information is preferentially output to the display. That is, when the operation pattern is changed, there is a possibility that the worker has been transferred to a different person from the previous one. This display allows the worker to re-recognize the operation pattern.

  In the first aspect of the invention, for example, when the operator sufficiently recognizes the operation pattern, the display of the operation pattern may be an obstacle, or another information may be preferentially displayed. The reverse is also true. In the present invention, the display mode can be switched and displayed according to the operator's familiarity, skill level, situation, etc., so improvement in workability and safety can be expected.

  According to the second aspect of the invention, in the second display mode for displaying the non-operation pattern information, the operation pattern information is reduced and displayed on the display surface simultaneously with the non-operation pattern information. In addition to the effects, further improvement in workability and safety can be expected.

  In the third aspect of the invention, for example, when an external operation switch or the like is operated, the operation signal is switched from the first display mode to the second display mode, or the reverse second display mode to the first display mode. Therefore, in addition to the effects of the first or second aspect of the invention, an improvement in switching operability can be expected.

  In the invention according to claim 4, when the key switch is turned on, it is considered that the operator is changing to a different person from the previous one, and the operator is made to recognize the operation pattern again. In addition to the effects of the first, second or third aspect of the invention, further improvement in safety can be expected.

  According to the fifth aspect of the present invention, when the operation pattern is changed, it is possible to cause the operator to re-recognize the operation pattern in consideration of the possibility that the operator is changing to a person different from the previous one. Therefore, in addition to the effects of the first, second, third or fourth aspect of the invention, further improvement in safety can be expected.

The whole side view which shows schematic structure of the hydraulic excavator which is the application object of the monitoring apparatus for construction machines of this invention. The perspective view which shows schematic structure in the cab of a hydraulic excavator same as the above. The block diagram which shows schematically the structure of the control part concerning each of the operation lever and indicator of a hydraulic excavator same as the above. The flowchart which shows an example of the control procedure by the calculator shown in FIG. FIG. 5 is a diagram illustrating an example of an operation pattern, where (a) is an operation pattern A and (b) is an operation pattern D.

  The present invention achieves the object of providing a monitoring device for a construction machine that can change the display mode according to the familiarity and skill level of an operator, in order to achieve the purpose of providing a key switch, a display, and an operation lever. An operation pattern switching device for switching movement and movement of a work device operated by the operation lever, and an arithmetic controller for outputting data for displaying the operation pattern selected by the operation pattern switching device on the display surface of the display device In the construction machine monitoring apparatus, the arithmetic controller preferentially displays the operation pattern information related to the operation pattern on the display surface of the display device, and the first display mode. The non-operation pattern information other than the information related to the operation pattern can be switched to the second display mode for displaying on the display surface of the display. It was realized by.

Hereinafter, a preferred embodiment of the monitoring device for construction machine according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is an overall side view of a hydraulic excavator shown as a construction machine to which a construction machine monitoring device according to the present invention is applied. In FIG. 1, a hydraulic excavator 10 includes a lower traveling body 11, an upper revolving body 12 that is turnably mounted on the lower traveling body 11, and a working device 13 that is provided on the upper revolving body 12 so as to be able to move up and down. It is roughly composed of A cab 15 that defines a cab is provided on the frame 14 of the upper swing body 12.

  FIG. 2 is a perspective view showing a schematic structure in the cab 15. In the figure, a cab 15 is formed in a substantially box shape, and a seat seat 16 on which an operator sits and performs a driving operation is provided. In the vicinity of the seat 16, operating levers 17 a and 17 b for an operator to operate an actuator such as the work device 13 are provided separately on both the left and right sides of the seat 16, and the right front of the seat 16 is provided. In addition, a display 18 as a monitor is provided. The display 18 is, for example, a liquid crystal monitor, and various types of information are displayed on the display surface 18a.

  FIG. 3 is a block diagram schematically showing the configuration of the control device unit 19 related to the operation levers 17 a and 17 b and the display 18 of the excavator 10. In the figure, the control unit 19 mainly includes an arithmetic controller (controller) 20, a key switch 21 connected to the arithmetic controller 20, the operation levers 17 a and 17 b, the display 18, and an operation pattern switching. And a hydraulic cylinder 23 for driving the working device 13.

  The arithmetic controller 20 is a controller in which a program or the like for controlling the entire control device unit 19 according to a predetermined procedure is incorporated, and is constituted by, for example, a microcomputer (commonly called “microcomputer”).

  The key switch 21 is a switch for starting and stopping the excavator 10, and on / off switching information of the key switch 21 is input to the arithmetic controller 20.

  The operation levers 17a and 17b are each connected to a universal joint attached to a valve body (not shown), and are supported by the universal joint so as to be tiltable in the front-rear direction and the left-right direction. Information on the movements of the operation levers 17a and 17b in the front-rear direction and the left-right direction is sequentially input to the arithmetic controller 20.

  2 and 3, the operation lever 17a is provided with a push-type switch 24 as display information switching means, and operation signals from the switch 24 are sequentially input to the arithmetic controller 20. Is done. The switch 24 can be freely pushed by an operator. For example, the switch 24 is turned on when pushed once, and turned off when pushed again. The on / off signal is displayed on the display 18 as described later. Is input to the arithmetic controller 20 as a signal for switching the display mode.

  The operation pattern switching unit 22 has a switching lever 22a that can be operated externally. When the switching lever 22a is rotated in the horizontal direction, the position of the switching lever 22a can be switched to positions A, B, C, and D. In this switching, the voltage value (electric amount) differs according to the rotational operation position (lever operation amount) of the switching lever 22a, and this is input to the operation controller 20 and is determined by the operation controller 20, and the operation patterns A, It is distinguished whether the operation pattern B, the operation pattern C, or the operation pattern D has been switched to any position.

The display 18 receives the signal from the arithmetic controller 20 and controls the operation levers 17a and 17b.
Data information related to the operation pattern related to the operation pattern (hereinafter referred to as operation pattern information) and data information other than the data information related to the operation pattern (hereinafter referred to as non-operation pattern information) can be displayed on the display surface 18a. ing.

  FIG. 4 is a flowchart showing an example in which the arithmetic controller 20 operates the control unit 19. Next, operation | movement of the control apparatus part 19 is demonstrated using this flowchart.

  3 and 4, prior to the start of work, the operator turns on the key switch 21 that starts the excavator 10 (step ST1). As a result, a current is passed through the control unit 19, and the arithmetic and control unit 20 sends the current operation pattern information to the display 18 and displays an operation diagram of the operation pattern on the display surface 18a on the display 18 (step ST2). That is, in this embodiment, when the key switch 21 is turned on, the arithmetic controller 20 switches to the first display mode in which the operation pattern information is output to the display 18 with priority. This is because, when the engine is started, there is a slight possibility that the operator has been transferred to a different person from the previous one. Recognition can be performed. Further, the operator looks at this display to determine whether or not the operation pattern is suitable for his / her preference from the operation diagram or the like, and starts the engine if the operation pattern is suitable for his / her preference.

  On the other hand, if the operation pattern is not suitable for the user's preference, the operation pattern is selected by operating the switching lever 22a of the operation pattern changer 22 and switched to a position suitable for the user's preference. When the switching lever 22a is switched, the signal is sent to the arithmetic controller 20 and an operation diagram of a new operation pattern is displayed on the display surface 18a. The operator sees this and starts the engine if the operation pattern he / she has selected is selected, and operates the operation levers 17a and 17b to start the operation.

  When the switch 24 is pushed after the work starts, this is detected in step ST3. Thereby, the arithmetic controller 20 is switched to the second display mode in which the non-operation pattern information is displayed on the display unit 18, and the non-operation pattern information is displayed on the display unit 18 (step ST4). In other words, depending on the familiarity and skill level of each worker, if it is easier to work without displaying the operation pattern information on the display surface during the work, instead displaying the non-operation pattern information, Alternatively, it may be easier to work by displaying the operation pattern and other information at the same time, but this is to meet this demand. Therefore, in this case, only the operation pattern information is displayed, or the non-operation pattern information is displayed in the normal size, and the non-operation pattern information is displayed in a reduced size, or the two pieces of information are displayed in the same size. It may be a two-screen display.

  In the middle of the second display mode, either the signal that the switch 24 is pushed again or the signal that the switching operation lever 22a is operated to switch the operation pattern is input to the arithmetic controller 20. Then, this is detected in step ST5. Thereby, the calculation controller 20 returns to step ST2, and is switched from the second display mode to the first display mode in which the operation pattern information is displayed on the display unit 18 in preference to the non-operation pattern information. In other words, when an operation pattern is changed, the operator may have changed on behalf of another person, so the operator can re-recognize the operation pattern by displaying the operation pattern information. Ensure safety.

  Therefore, according to the structure of the above embodiment, the display mode is changed from the first display mode that preferentially displays the data information related to the operation pattern to the operation pattern according to the operator's familiarity, skill level, or situation. Since the display can be switched to the second display mode for displaying information other than related data information, improvement in workability, improvement in safety, and the like can be expected.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

  As described above, the present invention is applied to a hydraulic excavator, but can also be applied to a construction machine such as a hydraulic crane.

10 Hydraulic excavator (Construction machinery)
11 Lower traveling body 12 Upper revolving body 13 Working device 14 Frame 15 Cab 16 Seat seats 17a, 17b Operation lever 18 Display (monitor)
18a Display surface 19 Control unit 20 Arithmetic controller (controller)
21 Key switch 22 Operation pattern switching device 22a Switching lever 23 Hydraulic cylinder section 24 Switch (Display information switching means)

Claims (5)

A key switch, a display, an operation pattern switching unit that switches a movement of the operation lever and a movement of the work device operated by the operation lever, and an operation pattern selected by the operation pattern switching unit is displayed on the display surface of the display unit. In a construction machine monitoring device comprising an arithmetic controller for outputting data to be displayed on
The arithmetic and control unit has a first display mode for displaying the operation pattern information related to the operation pattern preferentially on the display surface of the display unit, and information other than information related to the operation pattern from the first display mode. A construction machine monitor device characterized in that it can be switched to a second display mode for displaying non-operation pattern information on the display surface of the display.   2. The construction machine according to claim 1, wherein the arithmetic controller outputs data for displaying the operation pattern information in a reduced manner on a display surface of the display device in the second display mode. Monitor device.   The construction according to claim 1 or 2, wherein the arithmetic controller is configured to switch between the first display mode and the second display mode by a signal of a display information switching means operated externally. Machine monitoring device.   4. The construction machine monitor according to claim 1, wherein the arithmetic controller is configured to preferentially output the operation pattern information to the display when the key switch is turned on. apparatus.   5. The arithmetic controller according to claim 1, wherein the operation pattern information is preferentially output to the display when a change in the operation pattern is detected. Monitoring equipment for construction machinery.

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