DISPLAYING A GRAPHICAL REPRESENTATION OF INFORMATION

Abstract

A display device for displaying a graphical representation of information includes a first interface for receiving the information via a first transmission path and a second interface for receiving the information via a second transmission path. The display device is designed to provide a first part of a complete display of the graphical representation using the information received by the first interface in a first color and to provide a second part of the complete display of the graphical representation using the information received by the second interface in a second color. The graphical representation is displayed in a complete color to a viewer, with the complete color being formed by adding the first and second colors to one another.

Claims

1-7. (canceled)

8. A display device for displaying a graphical representation of information, the display device comprising: a first interface for receiving the information via a first transmission path; a second interface for receiving the information via a second transmission path; the display device being configured: to provide a first part of a complete display of the graphical representation in a first color using the information received by said first interface; to provide a second part of the complete display of the graphical representation in a second color using the information received by said second interface; and to display the graphical representation for a viewer in a complete color which is formed by adding the first and second colors to one another.

9. The display device according to claim 8, wherein: the complete color is a color which indicates a validity of the information; and each of the first and second colors are error colors which indicate that the information is erroneous.

10. The display device according to claim 8, wherein: the display device is configured to display the graphical representation in the complete color with a background in a background color, the first part has a marking in a first background color in a given partial region of the background, and the second part has the marking in a second background color in the given partial region of the background; and the first background color and the second background color, when correctly displayed, form the background color of the complete display by addition of the first and second background colors.

11. The display device according to claim 8, wherein the information is safety-relevant information relating to the safety of a rail-guided vehicle.

12. A display system for displaying a graphical representation of information, the display system comprising: an information source for providing information; a first transmission path, which is configured to transmit the information to a first interface of a display device; a second transmission path, which is configured to transmit the information to a second interface of the display device; and wherein the display device is configured: to provide a first part of a complete display of the graphical representation in a first color using the information received by the first interface; to provide a second part of the complete display of the graphical representation in a second color using the information received by the second interface; and to display the graphical representation for a viewer in a complete color which is formed by adding the first and second colors to one another.

13. A rail-guided vehicle, comprising a display system according to claim 12.

14. A method for displaying a graphical representation of information, the method comprising: receiving the information by a first interface by way of a first transmission path; receiving the information by a second interface by way of a second transmission path; providing a first part of a complete display of the graphical representation in a first color using the information received by the first interface; providing a second part of a complete display of the graphical representation in a second color using the information received by the second interface; and displaying the graphical representation for a viewer in a complete color which is formed by adding the first and second colors to one another.

Description

[0029] Exemplary embodiments of the invention are explained with reference to the drawing, in which:

[0030] FIG. 1 schematically shows the structure of an inventive display system,

[0031] FIG. 2 schematically shows the structure of an inventive rail-guided vehicle, and

[0032] FIG. 3 shows an exemplary embodiment of an inventive display of a graphical representation.

[0033] FIG. 1 shows a display system 1 having a display device 3. The display system 1 comprises an information source 5, which provides information to be represented. The information is transmitted via two independent transmission paths 7 and 9 to respective interfaces 11 and 13 of the display device 3.

[0034] The information received by the first interface 11 is processed by means of a first display control unit 15 in such a way that a first part 19 of a complete display 27 of a graphical representation 14 of the information is provided in a first color 17. The information received by the second interface 13 is processed by means of a second display control unit 21 in such a way that a second part 25 of the complete display 27 of the graphical representation of the information is provided in a second color 23. By way of example, the bottom of FIG. 1 shows a plan view (i.e. a view in the viewing direction 29 of a viewer 31) of the first part 19 (bottom center), the second part 25 (bottom left) and the complete display 27 (bottom right).

[0035] The first part 19 and second part 25 form the complete display 27 after they are added together. In other words: as a result of mixing the first color 17 and the second color 23, the complete display 27 of the graphical representation 14 displays the information in a complete color 24. The addition is represented schematically in FIG. 1 as a plus sign in the circle. This can be understood as an addition in the context of data processing, and results in colors being mixed additively. For example, this is achieved by mixing RGB colors from an information technology perspective, whereby the RGB color values of the first and second part are added together.

[0036] In preparation for the addition, the first part 19 provided can be written into a memory. The second part 25 is added to the first part 19 in this memory and then displayed. Alternatively, the second part 25 is written into a second memory, the addition of the first part 19 and the second part 25 being written into a third memory. The contents of the third memory are displayed as a complete display 27 by means of the display device 3.

[0037] FIG. 2 shows an exemplary embodiment of an inventive rail-guided vehicle 33 in which is installed an inventive display device 3 of the type described above. In this case, identical and functionally identical elements are denoted by the same reference characters as in FIG. 1.

[0038] The information source 5 in the exemplary embodiment shown in FIG. 2 is a central control unit 35, which provides a braked weight percentage as information. The braked weight percentage is an example of information which relates to the safety of the rail-guided vehicle 33. The information is transmitted to the display device 3 via two independent transmission paths 7 and 9, for example two independent communication cables 37 and 39 or two independent communication telegrams. The independent communication telegrams can be transmitted via a vehicle bus.

[0039] FIG. 3 shows an exemplary embodiment of a display of the display device shown in FIG. 1. Identical or functionally identical elements are denoted by the same reference characters.

[0040] In particular, FIG. 3 shows the plan view of the first part 19 (top right), the plan view of the second part 25 (top left), and the plan view of the complete display 27 (bottom center) in a viewing direction 29.

[0041] The graphical representation 14 of the information is provided in the first color 17 for the first part 19 and in the second color 23 for the second part 25. These colors 17 and 23 are added together or superimposed to form the complete color 24.

[0042] The complete display 27 shows a background of the graphical representation 14 in a background color 110. The background color 110 is produced for the viewer 31 by adding a background color 112 of the first part 19 to a further background color 114 of the second part 25.

[0043] At the same time, the first part 19 has a marking 122 in the background color 114 in a star-shaped partial region 118 and the second part 25 has the marking 122 in the background color 112 in the same partial region 118. The background colors 112 and 114 are superimposed (as a result of addition) in the partial region 118 to give the background color 110 of the complete display 27.

[0044] This means that the viewer 31 perceives an erroneous display in a particularly simple and intuitive manner as a result of the marking. When the display is represented correctly, the background colors 112 and 114 are superimposed to form the background color 110 and the marking is no longer perceptible to the viewer. Therefore the viewer has no reason to assume an erroneous display.

[0045] Although the invention is illustrated and described in detail with reference to the preferred exemplary embodiment, the invention is not restricted by the examples disclosed herein, and other variations may be derived therefrom by a person skilled in the art without thereby departing from the scope of the invention.