JP2020013016A - Display control device, display control method, and program - Google Patents

Abstract

To prevent a situation where a multi-display cannot present important information when some of the displays constituting the multi-display fail.SOLUTION: An importance setting unit (41) sets the importance of an image displayed by each of a plurality of displays. A failure detection unit (42) detects that the plurality of displays fail. When some of the displays of a multi-display fail, a display modification unit (43) modifies images displayed by non-failing displays according to the importance of each of the images.SELECTED DRAWING: Figure 10

Description

  The present invention relates to, for example, a technique for controlling a multi-display system.

  In a multi-display system, a plurality of display devices constitute a pseudo large screen (hereinafter, referred to as a multi-display). For example, the multi-display displays a flight arrival / departure table in an airport. In addition, the multi-display is also used in the command tower of the fire department and the monitoring room of the power system.

  FIG. 12 shows an example of a multi-display 800 in a related technique. In the example shown in FIG. 12, nine display devices 801 to 809 constitute a multi-display 800. The multi-display 800 displays one image including a plurality of partial images displayed by the nine display devices 801 to 809, respectively.

  When a part of the plurality of display devices 801 to 809 shown in FIG. 12 fails, a part of the image displayed by the multi-display 800 is missing. As a result, the multi-display 800 may not be able to present important information.

  Patent Literature 1 discloses a technique for changing an image displayed on a multi-display when a part of a plurality of display devices included in the multi-display has failed so that the failed display device is not used.

JP 2018-004809 A

  However, according to the technique described in Patent Document 1, it is necessary to generate data of a large number of images in advance so as to be able to cope with a failure of any display device.

  An object of the present invention is to prevent a situation in which important information cannot be presented by simply modifying the display when a part of the display device constituting the multi-display breaks down.

  A display control device according to one embodiment of the present invention is a display control device that controls a multi-display including a plurality of display devices, and sets an importance of an image displayed by each of the plurality of display devices. Degree setting means, failure detection means for detecting that the plurality of display devices have failed, and the importance setting means when the failure detection means detects that some display devices of the multi-display have failed. Display altering means for altering the image displayed by the display device which has not failed in accordance with the degree of importance of the image set by the user.

  A display control method according to one embodiment of the present invention is a display control method for controlling a multi-display including a plurality of display devices, wherein the importance of an image displayed by each of the plurality of display devices is set. When detecting that the plurality of display devices have failed, and when detecting that some of the display devices of the multi-display have failed, the failure has occurred in accordance with the set importance of the image. And modifying the image displayed by the display device.

  A program according to one embodiment of the present invention is a program for controlling a multi-display including a plurality of display devices by a computer, and sets a degree of importance of an image displayed by each of the plurality of display devices. When detecting that the plurality of display devices have failed, and when detecting that some of the display devices of the multi-display have failed, the failure has occurred in accordance with the set importance of the image. And modifying the image displayed by the display device.

  According to one embodiment of the present invention, it is possible to prevent a situation in which important information cannot be presented when some of the display devices included in the multi-display malfunction.

1 is a block diagram illustrating a configuration of a multi-display system according to a first embodiment. FIG. 3 is a diagram illustrating an example of an entire image displayed by the multi-display according to the first embodiment. FIG. 7 is a diagram illustrating an example of importance set for each partial image forming the whole image. 6 is a flowchart illustrating a flow of a process executed by the display control device according to the first embodiment. 4 shows an example of a configuration of an entire image when a part of a display device configuring a multi-display has failed. 4 shows an example of an entire image displayed when a part of a display device constituting the multi-display has failed. FIG. 9 is a diagram illustrating an example of an entire image displayed by a multi-display according to a second embodiment. FIG. 11 is a diagram illustrating another example of the importance levels set for the respective partial images constituting the entire image. 5 shows an entire image whose display form has been modified. FIG. 13 is a block diagram illustrating a configuration of a display control device according to a third embodiment. FIG. 14 is a diagram illustrating a hardware configuration of a display control device according to a fourth embodiment. FIG. 14 is a diagram illustrating an example of an image displayed by a multi-display in a related technique.

[Embodiment 1]
An embodiment will be described with reference to FIGS.

(Multi display system 1)
The configuration of the multi-display system 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of the multi-display system 1.

  As shown in FIG. 1, the multi-display system 1 includes a display control device 10, an importance storage device 20, an image data storage device 30, and a multi-display 100.

(Multi display 100)
As shown in FIG. 1, the multi-display 100 is composed of nine display devices 101 to 109. However, multi-display 100 may include more or fewer display devices. The display devices 101 to 109 constituting the multi-display 100 are respectively controlled by the display control device 10.

  In the present embodiment, the multi display 100 displays a still image. Each of the display devices 101 to 109 displays a part of a still image displayed by the multi-display 100. Hereinafter, the image displayed by the multi-display 100 is called an entire image, and the image displayed by each of the display devices 101 to 109 is called a partial image.

  FIG. 2 shows an example of the entire image D00 displayed by the multi-display 100 when none of the display devices 101 to 109 has failed. In FIG. 2, reference numerals d1 to d9 represent partial images displayed by the display devices 101 to 109, respectively. The data of the partial images d1 to d9 are stored in the image data storage device 30 together with information indicating the display devices 101 to 109 that display the partial images.

(importance)
FIG. 3 shows the importance of the partial images d1 to d9 constituting the whole image D00 shown in FIG. When a part of the display devices 101 to 109 configuring the multi-display 100 fails, the display control device 10 according to the present embodiment displays the partial images with higher importance on the multi-display 100 preferentially.

  As shown in FIG. 3, the importance of the partial images d1 to d6 constituting the entire image D00 is “high”, and the importance of the partial images d7 to d9 is “low”. For example, information of importance “high” corresponds to a numerical value of 1 and information of importance “low” corresponds to a numerical value of 0. The partial images d1 to d6 to which importance “high” has been assigned are referred to as group A, and the partial images d7 to d9 to which importance “low” has been assigned are referred to as group B.

  In the present embodiment, each of the partial images d1 to d9 is set to one of two levels of importance, “high” and “low”. However, any of three or more levels of importance may be set for the partial images d1 to d9. The importance storage device 20 stores information on the importance set for each of the partial images d1 to d9 in association with the data of the partial images d1 to d9.

(Display control device 10)
As shown in FIG. 1, the display control device 10 includes a failure detection unit 11, an importance setting unit 12, a display modification unit 13, and a display data transmission unit 14.

  The display control device 10 is connected to the multi-display 100, the importance storage device 20, and the image data storage device 30 via an arbitrary wired or wireless network. The display control device 10 acquires the data of the partial images d1 to d9 from the image data storage device 30. The display control device 10 displays the acquired data of the partial images d1 to d9 on the corresponding display devices 101 to 109, respectively.

  When a part of the display devices 101 to 109 constituting the multi-display 100 fails, the display control device 10 alters the entire image displayed by the multi-display 100 according to the importance of the failed partial image.

(Display control processing)
When a part of the display devices 101 to 109 constituting the multi-display 100 fails, the display control device 10 alters the entire image displayed by the multi-display 100 according to the importance of the failed partial image.

  With reference to FIG. 4, a flow of a display control process executed by each unit of the display control device 10 will be described. FIG. 4 is a flowchart illustrating the flow of the display control process.

  As shown in FIG. 4, the failure detection unit 11 periodically performs a health check on each of the display devices 101 to 109 configuring the multi-display 100 (S1).

  Specifically, the failure detection unit 11 periodically assigns an IP (Internet Protocol) address to each of the display devices 101 to 109 included in the multi-display 100, and then periodically performs a polling operation on each of the display devices 101 to 109. Do.

  The failure detection unit 11 determines whether each of the display devices 101 to 109 has failed based on the result of the health check in step S1. If the failure detection unit 11 has not detected any failure of any of the display devices 101 to 109 (No in S2), the flow returns to step S1.

  On the other hand, when the failure detection unit 11 detects that at least one of the plurality of display devices 101 to 109 has failed (Yes in S2), the display alteration unit 13 refers to the image data storage device 30. Then, the partial image displayed by the failed display device is specified. Then, the display alteration unit 13 detects the importance of the specified partial image with reference to the importance storage device 20 (S3).

  Here, it is assumed that the display device 103 at the upper right of the multi-display 100 shown in FIG. 2 has failed. In this case, the failed display device 103 cannot display the partial image d3.

  The display alteration unit 13 refers to the importance storage device 20 and detects the importance of the partial image d3 displayed by the failed display device 103. When the importance of the partial image d3 is high (No in S4), the display alteration unit 13 includes the display area of the group A including the partial images d1 to d6 having the same importance, including the partial image d3 that cannot be displayed by the multi-display 100. Is moved in the multi-display 100 to modify the entire image D00 (S5).

  FIG. 5 shows an example of the entire image D01 generated by the display altering unit 13 according to the pattern. The whole image D01 shown in FIG. 5 includes partial images d1 to d6. The display areas d11 and d12 of the display devices 101 and 102 are areas for displaying supplementary information described later. In the whole image D01, the positions of the display areas of the partial images d1 to d6 correspond to the positions of the display devices 104 to 109 in the multi-display 100. That is, the pattern shown in FIG. 5 corresponds to the display areas of the display devices 104 to 109 in the multi-display 100.

  After step S5, the display alteration unit 13 calculates the total value of the importance of the partial images d1 to d6 included in the altered whole image D01 (S6). In the whole image D01 shown in FIG. 5, the total value of the importance of the six partial images d1 to d6 is 6 (when the information of importance “high” corresponds to the value 1).

  When moving the display area of the partial images d1 to d6 included in the group A in step S5, the display alteration unit 13 determines whether another pattern exists (S7).

  If another pattern exists (Yes in S7), the flow returns to step S5. Then, the display alteration unit 13 calculates the total value of the importance of the partial images constituting another pattern of the altered entire image.

  On the other hand, when another pattern does not exist in the modified whole image (No in S7), the display modification unit 13 selects one pattern having the largest total value of the importance of the partial image from all the patterns. Select (S8). When there are a plurality of patterns having the largest total value of the importance of the partial images, the display altering unit 13 selects one of the patterns by an arbitrary method. Here, it is assumed that the display data transmission unit 14 has selected a pattern for displaying the entire image D01 on the multi-display 100.

  In step S8, in any of the patterns, when the total value of the importance of the partial images is equal to or smaller than that of the whole image D00, the display modification unit 13 replaces the whole image D00 with the whole image D00. It may be reduced. For example, the display altering unit 13 reduces the entire image D00 so that the entire image D00 can be displayed on the four display devices 104, 105, 107, and 108 that have not failed.

  The display data transmitting unit 14 displays the partial images d1 to d6 constituting the entire image D01 on the corresponding display devices 104 to 109 according to the pattern selected in step S8 by the display altering unit 13 (S9). . Further, the display data transmission unit 14 transmits data to be displayed in the display areas d11 and d12 to the display devices 101 and 102.

  In the present embodiment, the display data transmission unit 14 displays supplementary information in the display areas d11 and d12 of the display devices 101 and 102. The supplementary information may be a moving image, a still image, text, or a combination thereof. Alternatively, the supplementary information may be an advertisement, news, weather information, or a television program. The display data transmission unit 14 may request the user to determine or select the content of the supplementary information.

  FIG. 6 shows an example of the entire image D01 displayed on the multi-display 100. In FIG. 6, the supplementary information is a monochrome image of the same color as the adjacent partial images d1 and d2. The display device 103 described as “failure” does not actually display anything.

  In FIG. 2, partial images d1 to d6 are displayed on display devices 101 to 106. On the other hand, in FIG. 6, the partial images d1 to d6 are displayed on the display devices 104 to 109. That is, the position at which the partial images d1 to d6 with high importance are displayed on the multi-display 100 is lowered. This prevents the partial image d3 with high importance from being displayed.

  After the elapse of a certain time, the flow returns to step S1. In this way, the display control device 10 repeats the processing of steps S1 to S9 described above at regular intervals.

(Effect of this embodiment)
According to the configuration of the present embodiment, when a part of the display devices constituting the multi-display fails, the group of the non-displayable partial images is moved in the multi-display so that the total importance of the partial images that can be displayed is increased. Modify the entire image to maximize the value. This can prevent the multi-display from being unable to present important information.

[Embodiment 2]
In the present embodiment, a configuration that is a generalization of the configuration described in the first embodiment will be described. The configuration of the multi-display system according to the present embodiment is the same as the configuration of the multi-display system 1 (FIG. 1) according to the first embodiment.

  FIG. 7 shows an entire image E00 displayed by the multi-display 100 according to the present embodiment. The overall image E00 is, for example, a flight arrival / departure table. In the flight departure / arrival table, the information of the flight with the earlier departure / arrival time is generally higher, so the partial image displayed on the upper side in the whole image E00 contains more useful information. Therefore, in the present embodiment, the importance setting section 12 sets the importance higher for the partial image displayed on the upper side in the entire image E00.

  FIG. 8 shows the importance of each of the partial images e1 to e9 constituting the entire image E00. In the present embodiment, the importance setting section 12 sets the importance to “high” for the partial images e1 to e3 in the entire image E00 shown in FIG. The importance setting unit 12 sets the importance to “high” or “low” for the partial images e4 to e6 in the entire image E00. In addition, the importance setting unit 12 sets the importance to “low” for the partial images e7 to e9 in the entire image E00.

  It is assumed that the failure detection unit 11 detects that the display device 103 has failed, as in the first embodiment. In this case, since the importance of the partial image e3 that cannot be displayed by the display device 103 is “high”, the display modification unit 13 modifies the entire image E00 as described below.

(When the importance of the partial images e4 to e6 is “high”)
When the importance of the partial images e4 to e6 is “high”, the partial images e1 to e6 constitute one group having the same importance “high”. In this case, the display altering unit 13 puts together the partial images e1 to e6 belonging to the group having the “high” importance level so that only some of the partial images e1 to e6 belonging to the same group are not displayed. Then, it is moved within the multi-display 100. Then, the display altering unit 13 generates an entire image in which the total value of the importance of the partial images displayed in the multi-display 100 is the highest. The whole image E01 shown on the left side of FIG. 9 is one of the patterns in which the total value of the importance of the partial images is the highest.

(When the importance of the partial images e4 to e6 is “low”)
When the importance of the partial images e4 to e6 is “low”, the partial images e1 to e3 form one group having the same importance “high”. In this case, the display altering unit 13 puts together the partial images e1 to e3 belonging to the group of importance “high” so that only some of the partial images e1 to e3 belonging to the same group are not displayed. Then, it is moved within the multi-display 100. Then, the display altering unit 13 generates an entire image in which the total value of the importance of the partial images displayed in the multi-display 100 is the highest. The whole image E02 shown on the right side of FIG. 9 is one of the patterns in which the total value of the importance of the partial images is the highest.

  As described above, in the present embodiment, the display altering unit 13 alters the entire image E00 into a different pattern according to the importance of the partial images e4 to e6.

(Effect of this embodiment)
According to the configuration of the present embodiment, partial images belonging to groups having the same importance are combined and the entire image is modified. Thereby, in the modified whole image, the positional relationship of the partial images belonging to the same group does not collapse. Further, there is no possibility that only a part of the partial images belonging to the group having the same importance is not displayed.

[Embodiment 3]
Another embodiment will be described with reference to FIG.

(Display control device 40)
FIG. 10 is a block diagram illustrating a configuration of the display control device 40 according to the present embodiment. As illustrated in FIG. 10, the display control device 40 includes an importance setting unit 41, a failure detection unit 42, and a display alteration unit 43. The display control device 40 controls a multi-display composed of a plurality of display devices.

  The importance setting unit 41 sets the importance of an image displayed by each of the plurality of display devices. The importance is expressed in two levels, for example, a “high” level and a “low” level.

  The failure detection unit 42 detects that a plurality of display devices have failed. The failure detection unit 42 determines whether each display device has failed by performing a health check on each display device.

  When the failure detecting unit 42 detects that a part of the display device of the multi-display has failed, the display altering unit 43 displays the non-failed display device according to the importance of the image set by the importance setting unit 41. Modify the image displayed by. Specifically, the display alteration unit 43 preferentially displays an image with high importance. If necessary, the display altering unit 43 replaces an image with low importance with an image with low importance.

(Effect of this embodiment)
According to the configuration of the present embodiment, when a part of the display device of the multi-display breaks down, the image displayed by the display device that has not failed is modified according to the importance of the image. Thus, it is possible to prevent the important information from being unable to be presented when some of the display devices included in the multi-display fail.

[Embodiment 4]
In each embodiment of the present disclosure, each component of each device indicates a block of a functional unit. Some or all of the components of each device are realized by, for example, an arbitrary combination of an information processing device 900 and a program as shown in FIG. FIG. 11 is a block diagram illustrating an example of a hardware configuration of an information processing device 900 that realizes each component of each device.

  As shown in FIG. 11, the information processing apparatus 900 includes, for example, the following configuration.

-CPU (Central Processing Unit) 901
・ ROM (Read Only Memory) 902
-RAM (Random Access Memory) 903
A program 904 loaded into the RAM 903
A storage device 905 for storing the program 904
A drive device 907 for reading and writing the recording medium 906
A communication interface 908 connected to the communication network 909
An input / output interface 910 for inputting / outputting data
A bus 911 for connecting each component
Each component of each device in each embodiment is realized by the CPU 901 acquiring and executing a program 904 that realizes these functions. The program 904 for realizing the function of each component of each device is stored in, for example, the storage device 905 or the ROM 902 in advance, and is loaded and executed by the CPU 901 into the RAM 903 as needed. Note that the program 904 may be supplied to the CPU 901 via the communication network 909, or may be stored in the recording medium 906 in advance, and the drive device 907 may read the program and supply it to the CPU 901.

(Effect of this embodiment)
According to the configuration of the present embodiment, the device described in any of the above embodiments is implemented as hardware. Therefore, the same effects as those described in any of the above embodiments can be obtained.

DESCRIPTION OF SYMBOLS 1 Multi-display system 10 Display control device 11 Failure detection unit 12 Importance setting unit 13 Display modification unit 40 Display control device 41 Importance setting unit 42 Failure detection unit 43 Display modification unit 100 Multi-display 101-109 display device

Claims (7)

A display control device for controlling a multi-display composed of a plurality of display devices,
Importance setting means for setting the importance of an image displayed by each of the plurality of display devices,
Failure detection means for detecting that the plurality of display devices have failed,
When the failure detecting unit detects that a part of the display device of the multi-display has failed, an image displayed by a display device that does not fail according to the importance of the image set by the importance setting unit. And a display altering means for altering the display control device. The said display modification means displays the high importance image which the failed display device displayed instead of the low importance image which the non-failed display device was displaying. 2. The display control device according to 1. 3. The display control device according to claim 1, wherein the importance setting unit sets the importance according to a position where the image is displayed on the multi-display. 4. The importance setting means,
The importance is set for each group of a plurality of images,
4. The display modification device according to claim 1, wherein the display modification unit modifies an image displayed by a display device that does not malfunction so that only a part of an image belonging to the same group is not displayed. 5. The display control device according to claim 1. The said failure detection means determines presence or absence of a failure for every display apparatus which comprises the said multi-display by performing polling regularly. The Claims 1 to 4 characterized by the above-mentioned. Display control device. A display control method for controlling a multi-display including a plurality of display devices,
Setting the importance of the image displayed by each of the plurality of display devices,
Detecting that the plurality of display devices have failed;
When detecting that some of the display devices of the multi-display have failed, modifying the image displayed by the display device that has not failed according to the set importance of the image. . A program for controlling a multi-display constituted by a plurality of display devices by a computer,
Setting the importance of the image displayed by each of the plurality of display devices,
Detecting that the plurality of display devices have failed;
When detecting that some of the display devices of the multi-display have failed, the computer executes, according to the set importance of the image, modifying an image displayed by a display device that has not failed. Program for.

Images