JP3007558B2 - Display of construction machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a display device for a construction machine.

[0002]

2. Description of the Related Art Conventionally, a display unit P of a display device of a construction machine is used.
As P1, P2, for example, those shown in FIG. 4 or FIG. 5 are known.

The display unit P1 of the display device shown in FIG.
For example, information necessary for machine operation, such as the remaining fuel amount, water temperature, and oil temperature, is displayed on the machine operation state display unit 2, and warning contents such as, for example, overheating are displayed on the warning display unit 4.

The machine operation state display unit 2 displays an operation state by turning on or off a lamp corresponding to a mark which has a stylized display content, or displays a numerical value by a liquid crystal. ing.

[0005] The alarm display section 4 is constituted by a dot liquid crystal panel so that the contents of the alarm can be displayed by characters or figures.

On the other hand, a display section P2 of a display device of a construction machine as shown in FIG. 5 is also widely known. The display section P2 shown in FIG. 5 is entirely composed of a liquid crystal panel of full dots, and includes a machine operation state display for displaying information necessary for the machine operation such as a fuel remaining amount, a water temperature, an oil temperature, and the like. The unit 2A and an alarm display unit 4B for displaying alarm contents such as overheating are separately provided.

[0007]

However, such conventional display devices for construction machines all have a machine operation status display section 2 or 2A for displaying information necessary for machine operation and an alarm content for displaying alarm content. Since the display units 4 and 4A are provided independently of each other, the alarm content display units 4 and 4A
In general, information that is normally idle or that is not directly related to mechanical operation of a clock or the like is displayed.

Accordingly, there is a problem that a very large (useless) area is required as a space for the entire display section.

Further, when an alarm is given, a large display screen is required because, in addition to the content of the alarm, information necessary for machine operation such as fuel remaining amount and water temperature is displayed (all). In addition, in order to obtain high contrast in all of them, there is a problem that a considerably complicated control circuit configuration is required, resulting in an increase in cost.

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide a display unit that is as compact as possible to reduce costs and to provide necessary information reliably when necessary. It is an object of the present invention to provide a display device of a construction machine which can be used.

[0011]

According to the first aspect of the present invention, in addition to information necessary for operating a construction machine, such as a remaining fuel amount, a water temperature, an oil temperature, and the like, an alarm content relating to the construction machine is displayed. In a display device of a construction machine having a display unit configured to be able to also display the display unit, the display unit includes the necessary information.
Display and alarm contents can be displayed, and it is composed of a single display screen. On the display unit, only the information necessary for the operation is displayed at normal times, and only the alarm contents are displayed at abnormal times. Thus, the above problem is solved.

[0012] The invention according to claim 2 provides a fuel remaining amount,
In addition to the information necessary for operating the construction machine such as water temperature, oil temperature, etc., in the display device of the construction machine having a display unit configured to be able to also display the display of the alarm content related to the construction machine, The display unit displays the necessary information and alerts
Both the display of the content is possible , and the display unit is configured with a single display screen, and the display unit displays only information necessary for the operation at normal time, and displays only the alarm content at the time of abnormality and the operation The above-mentioned problem is also solved by a configuration in which the display of only the necessary information is performed at a predetermined interval.

According to a third aspect of the present invention, in the second aspect, at least one of a time period for displaying only information necessary for the operation and a time period for displaying only the alarm content is set as follows.
The above-mentioned problem is also solved by changing according to the contents of the alarm.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 schematically shows a display device of a construction machine to which the present invention is applied.

This display device is mainly composed of a group of various sensors 10 for detecting the operation state of the machine, and a controller 30 for processing the values thereof and issuing a display request to the display unit 20.
Based on each sensor group 10 and these information, the display unit 20
For the specific configuration of the controller that issues a display request to a user, a conventionally known configuration can be applied as it is.

Here, as shown in FIG. 1, the display section 20 is composed of a liquid crystal panel having a single full-dot display screen.

As shown in FIG. 1A, when the operator is operating the machine at normal times, the display unit 2
In 0, various information necessary for the operator to operate the machine, such as the remaining fuel amount, oil temperature, water temperature, and the like, are displayed together with their symbol marks in a bar graph display. Normally, only information necessary for these machine operations is displayed on the display unit 20.

On the other hand, in this state, when a display request for some kind of alarm content is received from the controller 30 side, the display unit 20
As shown in FIG. 1B, only the contents of the alarm are displayed in characters or figures. That is, when an alarm display is performed, a display necessary for machine operation is not performed.

It is to be noted that, if necessary, information necessary for operating the machine in the normal state and the contents of the alarm may be performed at predetermined intervals (cyclically). In this case, the display time of the information necessary for the machine operation and the display time of the alarm content are appropriately changed according to the alarm content. For example, when a small alarm content is displayed, as shown in FIG. In order to display a relatively short alarm in a long cycle, and to display a serious alarm content, the display of the alarm content is made relatively long as shown in FIG. The information required for the operation may be displayed only for a short time.

Alternatively, even when the display times are the same, for example, when displaying a slight alarm, FIG.
As shown in FIG. 3, the display is alternately performed in a relatively long cycle, but when a serious alarm content is displayed, the switching cycle is made shorter as shown in FIG. You may make it do. In addition,
Even if the alarm is minor, it is preferable to set the switching interval short if it is meaningless to notify the operator of the content immediately.

As a matter of course, as shown in FIG. 3E, the display may be switched by a method in which the above methods are appropriately combined.

In any case, when one display (display of information necessary for machine operation) is being performed, the other display (display of alarm contents) is not performed. Conversely, when the other display is being performed, one display is not performed.

As described above, normally, only the information necessary for machine operation is displayed, and when there is an abnormality, it is possible to display the details of the abnormality using the same display unit. Even in the case of a display unit having an area, the display unit can be used very effectively, and the cost can be reduced because the display area is small and the configuration is simple.

[0025]

As described above, according to the present invention,
An excellent effect is obtained in that the area of the entire display unit can be reduced and the cost can be reduced, while ensuring the function of displaying necessary information reliably and largely when necessary.

[Brief description of the drawings]

FIG. 1 is a plan view showing a display example on a display unit of a display device of a construction machine to which the present invention is applied.

FIG. 2 is a schematic block diagram illustrating the overall configuration of the display device.

FIG. 3 is a graph showing a pattern example when an alarm content and information necessary for operation are alternately displayed.

FIG. 4 is a plan view showing an example of a display unit of a display device of a conventional construction machine.

FIG. 5 is a plan view showing an example of a display unit of another conventional display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Sensor group 20 ... Display part 30 ... Controller

Claims (2)

(57) [Claims] A display unit configured to display, in addition to information necessary for operating the construction machine, such as a remaining fuel amount, a water temperature, and an oil temperature, a display of an alarm content related to the construction machine. In the display device of the construction machine, the display unit displays the necessary information and a table of the contents of the alarm.
And a single display screen, and the display unit displays only the information necessary for the operation at normal times, and displays only the alarm content at abnormal times. A display device for a construction machine, comprising: A display unit configured to display, in addition to information necessary for operating the construction machine, such as a remaining fuel amount, a water temperature, and an oil temperature, a display of an alarm content related to the construction machine. In the display device of the construction machine, the display unit displays the necessary information and a table of the contents of the alarm.
And a single display screen, and displays only the information necessary for the operation at normal times on the display unit. A display device for a construction machine, wherein display of only essential information is performed at predetermined intervals.