JPS6149035A - Displayer for construction machinery - Google Patents

Abstract

PURPOSE:To clearly display the variation in the conditions or anomalous conditions of a working machine by providing a detector to detect the anomaly of working conditions for the movable portions of a construction machinery and also a means of flickering the illustrated figure points of the construction machinery corresponding to anomaly. CONSTITUTION:The display picture face of a picturing device 40 consists of a rating load displayer, a front region displayer, a jib selection displayer, and a rope hooked number displayer. In a picture face control circuit 33, when data to show the arrival point of the action limit of each movable portion in a crane are received from CPU30, the portions in the illustrated figure are shown in a flickering manner. When data to show anomaly of working conditions are received from CPU30, a control on pictures is made flickering arrows or marks. The occurrence of anomaly in the working conditions can thus be quickly and exactly notified to an operator in terms of detailed contents of anomaly, and clear display of continuous variations of the movable portions can be made.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a display device for construction machinery.

[Conventional technology]

Conventionally, this type of display device simply represents the state quantity of each work machine, etc. in numerical values, and when the state becomes abnormal, the display is displayed by one warning lamp or by a warning lamp corresponding to each part. The only thing they did was flash a warning lamp.

[Problem that the invention seeks to solve]

With a device that indicates an abnormal condition by flashing one warning lamp, it may be difficult to determine which part is abnormal, or it may be difficult to determine which part is abnormal, or it may be necessary to In the case where a warning run '7' is provided, the operator has to search for the warning lamp, which tends to delay response and make it difficult to perform safe and reliable operations.

Furthermore, in devices that simply display numerical values of the status f7j4 acid of each work machine, etc., the display 111 flickers, and it cannot be said that the operator can immediately understand it.

%, as the length of the boom becomes longer, it becomes more difficult to tell from the operator's seat whether the boom is extended or contracted.
Even though there were many cases where cargo was unloaded behind a building, there was no way to confirm its movement.

The invention was made in consideration of the actual situation in Ageo, and the object is to provide a display device for construction machinery that can clearly display abnormal conditions and changes in state quantities of joint working machines of construction machinery, etc. .

[Means for solving problems]

According to the present invention, in a display device for a construction machine that displays an illustration of the construction machine on its screen, is there an abnormality in the working condition including the operational visual field reach points of each movable part of the construction machine? The abnormal state of the construction machine is displayed in an easy-to-understand manner by detecting and blinking the part of the construction machine illustration that corresponds to the detected abnormality.

Also, what are the operating directions and operating speeds of each movable part of the construction machine? The operating direction of the detected movable part is displayed by displaying an arrow near the movable part in the illustration of the construction machine, and the operating speed of the detected movable part is indicated by the flashing interval of the arrow. By displaying the information, changes in state quantities (direction of change, speed of change) of each working machine etc. can be easily displayed.

Yet again. detecting the state quantity of each movable part of the construction machine;
In order to display the detected state t of each movable part, at least the movable part in the illustration of the construction machine is drawn and displayed.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the attached drawings.

FIG. 1 shows an embodiment of a display device for construction machinery according to the present invention.
11 is a block diagram showing the case of application to a crane. In the 1ift diagram, 1 is a boom length detector, 2 is a boom strength detector, 3 is a boom cylinder bed pressure detector, 4 is a boom cylinder bottom drying force detector, and 5 is a rope length detector. . Any other problems regarding crane cargo handling? There is also a persimmon extractor to detect, but it is omitted here.

Further, 1] is a setting device for the type of jib to be used, 12 is a setting device for the type of outboard cable to be used, and 13 is a setting device for the type of rope hooking number of the lifting cable to be used.

Also, 21 to 21 are state quantity display changeover switches, and the switch corresponding to the state desired to be displayed on the image device 40 to be used is selectively operated as appropriate.

The output signals of the detectors 1 to 5, setting devices 11 to 13, and changeover switches 21 to 27 are sent to the central processing unit (CPU).
Kana is attacked.

Based on the input signal, the CPU 30 calculates the lifting load of the working radius R1 and the rated load loading rate based on known formulas, and also calculates the rated working radius, rated load, and maximum hoisting height from the memory 31 in which rating data etc. are stored in advance. Read the data of the number. And the data calculated above,
Data read from memory 31, detector 1.2 and setters 11, 12.

1; Input data from the beginning, if these data indicate the operating visual field arrival point of each 01m section of the crane, or if it indicates an abnormality in the working condition of the crane, the data corresponding to the abnormality is sent to the image side control circuit. Output to 33.

The image 1t (il1 circuit 33 is a memory 32 that stores image frames corresponding to the crane illustration I¥1 (see Figure 2), etc., and other image frames of buildings to be described later) based on human data from the CPU: 11. The video R in the image frame+1if1 circuit 33 is read out from the image frame as appropriate.
AMK is stored, and image data corresponding to the data indicating the state quantity of the % rod is created, and the image data is stored in the corresponding address of the video RAM in order to be displayed at an appropriate location on the screen of the image device 40. This image ftI! The I# circuit, 3:3, performs the control of each frame, the details of which will be described later.

The image drive 10 drives the CRT based on the data stored in the video RAM K in the image control circuit 33.

The image device u40 such as an LCD or EL display is made to display.

FIG. 2 shows an example of a display screen of the image device 40. As shown in FIG. In the figure, 41 is a rated fI heavy load factor display section, 42 is a front area display section, 43 is a jib selection display section, and 44
is the rope hanging number display section, 45 is the out+7ga selection display section,
46 is a boom angle or boom length display section, 47 is a front working radius or rated working radius display section, and 48 is a lifting load or rated load display section. ,, R1 display section 42 is not displayed when the area is other than the front area, and arrows A1 to A
10 is not displayed when each operating section is in a stationary state. Further, the jib selection display section 43 displays only one jib set by the jib setting device 11 among the three jibs,
The outrigger selection display section 45 displays the outriggers at the positions set by the setting device 12. In addition, the display sections 46, 47, and 48 are each used in common to display the KJ number as described above. .

Now, picture 1#! Training control circuit Aha, CPU 3 (l) receives data indicating the reaching point of the crane's valley 01 moving part, for example, the boom angle θ has reached the upper limit of 80 degrees, or the boom and outrigger extension and contraction have reached the stroke end. When the data shown is accepted, the image t is displayed in order to make that part (including symbols θ, R, etc.) in the crane illustration blink.
Perform fjllfi11. In addition, not only the relevant part in the illustrated diagram, but also the display unit that displays the state quantity can be made to blink, or the content of the abnormality can be simply expressed at that position. t-The CPU 30 sends data indicating abnormal working status of the crane, for example, the rated load display section is 1.
00 'i Y When accepting data indicating that Y has been exceeded,
Image 1ii1 to blink arrow All and symbol M
Perform step 1 on side 1.

Further, the image control circuit 33 receives data indicating the state t1 of each movable part from the CPU 30, and changes the state quantity (
Change direction, change speed injection)? As is customary, an arrow is placed near the movable part in an illustration of a crane to indicate the direction of movement of the movable part, and image control is performed to display the operating speed according to the blinking interval of the arrow. Therefore, when the boom is extended, the arrow A1 will blink at a period corresponding to the stray electricity.

Further, FIG. 3 shows another embodiment of the display screen of the image device 40. In the figure, 51 is a jib selection display section, 52 is a rope hanging number display section, 53 is a lifting load display section, 54 is a rated load display section, 55 is a maximum hoisting height display section, and 5 is a rated load loading rate display section. 57 is a boom angle display section, Numa is a boom length display section, 59 is a working radius display section, ω is a rated working radius display section, and 61 is an outrigger selection display section.

The image control circuit performs image control using data from the CPU 30 to display various displays on the display section, and also controls the movement of the crane illustration Nll in order to display the state quantities of each movable part in an illustrated diagram. The image side # to cause the part to be displayed is performed.

In this drawing method, for example, a memory table of image frames corresponding to the state quantity of each movable part is prepared in advance in the memory 32, and appropriate image frames of each movable part are stored in the memory 32 based on data from the CPU 30. A conceivable method is to read it from the image plane control circuit and store it in the video RAM K in the image plane control circuit.゛Figure 4
al to lcl are respectively shown for the case where the toilet jib is drawn as described above and its contents are expressed, and Figure 5 (ml-(cl is shown for the case where the outrigger is drawn respectively. It is a matter of course that the boom is drawn based on data indicating the boom angle θ and the boom length L. 8. Along with the display of each movable part mentioned above, arrows are also shown as shown in Fig. 3. I am trying to display it.

Note that the display device according to the present invention can be used not only for cranes but also for other construction machines.

〔Effect of the invention〕

As explained above, according to the present invention, when an abnormality occurs in the working state (including when the operating eye field is busy), the corresponding part (including the symbol) of the display illustration is made to blink. Therefore, it is possible to quickly and accurately notify one worker of the details of the abnormality. In addition, the operating direction of each moving part is indicated by an arrow, and the operating speed is indicated by the flashing interval of the arrow, so continuous changes in each moving part can be clearly displayed, and changes that cannot be seen from the driver's seat can be displayed. It is possible to accurately capture difficult changes. Since the state quantities of each moving part and their changes are displayed in the most suitable illustrations, it is possible to easily and accurately convey to workers the state of the construction vehicle and its changes. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the display device for construction machinery according to the present invention, FIGS. 2 and 3 are diagrams showing an example of the display screen of the image device shown in FIG. 1, and FIG. al
, (bl, (cl) are a diagram showing the display mode of the jib selection display section on the display screen in Figure 3, and Figure 5 (al
, (bl, (cl) are diagrams each showing the display mode of the outrigger selection display section on the display screen of FIG. 3. 1... Boom length detector, 2... Boom angle detector, 3. 4... Mocha detector, 5... Rope tension detector, 11... Jib setting device, 12... Outrigger setting device, 13... Rope hook setting device, 21-27... State quantity display changeover switch, (capital)...Central processing unit (CP)
U), 31, 32...Memory, 33...Image control circuit, A...Image drive path, 40...Image device.

Claims (3)

[Claims] (1) A display device for a construction machine that displays an illustration of a construction machine on its screen, which includes a detection means for detecting an abnormality in the working state including the operating eye reach point of each movable part of the construction machine; A display device for a construction machine, comprising means for blinking an illustrated part of the construction machine corresponding to the abnormality when an abnormality is detected. (2) A display device for a construction machine that displays an illustration of a construction machine on its screen, comprising a detection means for detecting the operating direction and operating speed of each movable part of the construction machine, and a detection means for detecting the operating direction and operating speed of each movable part of the construction machine, and a display means for displaying the moving direction of the movable part by displaying an arrow near the movable part in the illustration of the construction machine, and displaying the operating speed by the flashing interval of the arrow. Display device for construction machinery. (3) A display device for construction machinery that displays illustrations of construction machinery on its screen, including a detection means for detecting the state quantities of each movable part of the construction machine, and a detection means for detecting the state quantity of each movable part of the construction machine, and each of the town movement parts based on the output of the detection means. 1. A display device for a construction machine, comprising display means for drawing and displaying at least the movable part of an illustration of the construction machine in order to display the state quantity of the construction machine.