MAINTENANCE MONITOR DEVICE, AND PROGRAM AND RECORDING MEDIUM FOR THE SAME

• US 20150339868A1
• Filed: 11/05/2013
• Published: 11/26/2015
• Est. Priority Date: 11/08/2012
• Status: Active Grant

• Current Assignee: Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (Mitsubishi Heavy Industries, Ltd.)
• Original Assignee: Mitsubishi Heavy Industries, Ltd.
• Inventors: OKUDA, Keisuke, GOTO, Masayuki
• Granted Patent: US 9,947,150 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01D 7/04 using a separate indicating element for each variable
• CPC Class Codes: G06F 3/04812 Interaction techniques based on cursor appearance or behaviour, e.g. being affected by the presence of displayed objects
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/0484 for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/0825 using optical means
• CPC Class Codes: G07C 5/12 in graphical form

Abstract

An object is to provide a maintenance monitor device which can display numerical data related to three or more display items on a graph simultaneously, with high visibility and operability. A maintenance monitor device (1) is capable of displaying a graph of numerical data of three or more of a plurality of display items related to an apparatus (14) subject to maintenance on a monitor screen (10), and includes: a list display unit (2) capable of displaying a list of the display items (22) on the monitor screen; a numerical data display unit (3) capable of displaying a graph of numerical data related to the three or more display items on the monitor screen in accordance with graph axes including a first axis which includes a time axis; a position information calculation unit (7) capable of calculating position information of a cursor (28) displayed on the monitor screen; a display item recognition unit (6) capable of recognizing the display items indicated by the cursor on the basis of the position information of the cursor calculated by the position information calculation unit; and a second axis display unit (5) configured to be capable of displaying only one scale (33) corresponding to the display item recognized by the display item recognition unit on a second axis included in the graph axes.

Claims

1. A maintenance monitor device capable of displaying a graph of numerical data of three or more of a plurality of display items related to an apparatus subject to maintenance on a monitor screen, the maintenance monitor device comprising:

a list display unit capable of displaying a list of the display items on the monitor screen;

a numerical data display unit configured to be capable of displaying a graph of numerical data related to the three or more display items on the monitor screen in accordance with graph axes including a first axis which includes a time axis;

a position information calculation unit configured to be capable of calculating position information of a cursor displayed on the monitor screen;

a display item recognition unit configured to be capable of recognizing one of the display items indicated by the cursor on the monitor screen, only on the basis of the position information of the cursor calculated by the position information calculation unit; and

a second axis display unit configured to be capable of displaying only one scale corresponding to the recognized one of the display items recognized by the display item recognition unit on a second axis included in the graph axes.

2. The maintenance monitor device according to claim 1,

wherein the display item recognition unit is configured to recognize, when the cursor overlaps with one of the display items displayed on the list of the display items, the one of the display items overlapping with the cursor as the one of the display items indicated by the cursor.

3. The maintenance monitor device according to claim 1,

wherein the display item recognition unit is configured to recognize, when the cursor is overlapping with one of graph lines which are displayed on the graph and which correspond to the three or more display items, one of the display items corresponding to the one of the graph lines overlapping with the cursor as the one of the display items indicated by the cursor.

4. The maintenance monitor device according to claims 1, further comprising

a display item selection unit configured to be capable of optionally selecting three or more display items from the list of the display items,

wherein the numerical data display unit is configured to display the graph of only the numerical data of the selected display items selected by the display item selection unit, and

wherein the display item recognition unit is configured to recognize one of the selected display items selected by the display item selection unit.

5. The maintenance monitor device according to claims 1,

wherein the numerical data display unit is configured to indicate, on the graph, the numerical data of the display item recognized by the display item recognition unit by a graph line varied from the other numerical data.

6. The maintenance monitor device according to claim 1,

wherein the second axis display unit is configured to maintain a constant width for a tick-mark interval of the scale regardless of the display item recognized by the display item recognition unit.

7. The maintenance monitor device according to claim 1,

wherein the apparatus subject to maintenance is a diesel engine mounted on an industrial vehicle.

8. A program for displaying a graph of numerical data of three or more display items related to an apparatus subject to maintenance simultaneously on a monitor screen, wherein the program makes a computer execute:

a list display process of displaying a list of the display items on the monitor screen;

a numerical data display process of displaying a graph of numerical data related to the three or more display items on the monitor screen in accordance with graph axes including a first axis which includes a time axis;

a position information calculation process of calculating position information of a cursor displayed on the monitor screen;

a display item recognition process of recognizing the display items indicated by the cursor on the basis of the position information of the cursor calculated by the position information calculation unit; and

a second axis display process of displaying only one scale corresponding to the display item recognized by the display item recognition unit on a second axis included in the graph axes.

9. A recording medium which stores the program according to claim 8, the recording medium being readable by a computer.