JP2013160794A - Display device - Google Patents

Abstract

Provided is a display device capable of minimizing display defects due to a failure and enlarging an effective screen portion as much as possible.
A display device having an overall screen 1 composed of a plurality of individual screens 11 to 14, wherein the overall screen 1 has a reduced screen when at least one of the individual screens 11 to 14 is not displayed. The reduced screen includes image information of individual screens that are no longer displayed.
[Selection] Figure 1

Description

  The present invention relates to a display device, and more particularly to a display device characterized by a degenerate display format at the time of failure.

  Various display devices have been proposed and put into practical use for display devices having a comprehensive screen composed of a plurality of individual screens. For example, Patent Document 1 discloses a display device in which a plurality of individual screens are combined vertically and horizontally so as to display an entire system such as a power system or a plant, and when one of the individual screens fails, the failure screen An invention is disclosed in which one row including the image is not used, the original whole image information displayed on the general screen is reduced, and the whole individual screen is reduced and displayed.

  Patent Document 2 discloses a display device used in a field that is required to always display a necessary entire image, such as a plant monitoring device, and includes individual screens arranged in a matrix, A reduction and distribution mechanism is provided between the generating means for generating the entire image information to be displayed on the entire individual screen, so that the size of each image information is changed and distributed to the individual screen to display the entire image information. The invention is disclosed.

  By the way, when this type of display device is used in a field where extremely high security is required, such as monitoring the operation status of a train or the operation status of equipment, for example, at a railway operation command center, a part of an individual screen It is required that the effects of malfunctions that occur when the system breaks down should be minimized.

  However, the disclosures of Patent Documents 1 and 2 cannot meet the above request. That is, in Patent Documents 1 and 2, when one of the individual screens fails, the entire image information is displayed in a reduced manner, so that the image information of the healthy individual screen that has not failed is displayed together with the image information of the failed screen. As a result, an oversight such as an abnormality display is induced, and the operation management of the train is hindered.

  Furthermore, in order to avoid oversight such as the above-described abnormality display, the commander will perform monitoring work based on the overall image information displayed in a reduced manner, which will impose an excessive burden on the commander. .

JP 2000-89738 A JP-A-8-6532

  An object of the present invention is to provide a display device capable of minimizing the influence of a failure due to a failure and ensuring the maximum effective screen area.

  In order to solve the above-described problems, the display device according to the present invention has an integrated screen composed of a plurality of individual screens. The general screen is composed of a reduced screen and a non-reduced screen when at least one of the individual screens is not displayed. The reduced screen includes image information of individual screens that are no longer displayed.

  As described above, according to the configuration of the display device according to the present invention, for example, when image information is not displayed on some individual screens due to a failure, the image information of the failure screen is displayed in a reduced manner in the general screen. While a reduced screen is configured, a non-reduced screen is configured in which the image information of a sound individual screen that is not broken is displayed as it is. Therefore, it is possible to provide a display device that can minimize the influence of a failure due to a failure and can secure the maximum effective screen area.

  More specifically, the display device according to the present invention includes at least three or more individual screens. When the second individual screen is not displayed, the first individual screen displays image information ( Both the first image information) and the image information of the second individual screen (second image information) are displayed in a reduced size, and the third individual screen displays the image information (third image information) without reducing it. indicate. According to this configuration, for example, the second image information that is no longer displayed due to a failure or the like is displayed in a reduced manner together with the first image information on the first individual screen. Therefore, the entire image to be displayed on the general screen before and after the failure. There is no substantial change in information, and lack of display content is avoided.

  In addition, by making the first individual screen a reduced screen, the lack of the second image information is supplemented only by the first individual screen, the third individual screen is not affected by the failure, and the third image information is reduced. Displayed. Therefore, it is possible to provide a display device that can minimize the influence of a failure due to a failure and can secure the maximum effective screen area.

  Furthermore, when the display device according to the present invention is used to monitor the operation status of the train and the operation status of the equipment, for example, at a railway operation command station, the commander is at least a first reduced screen. For individual screens other than the individual screens, monitoring work is performed based on the image information displayed on the non-reduced screen, so that an excessive burden is not imposed on the commander.

  As described above, according to the present invention, it is possible to provide a display device that can minimize the influence of a malfunction due to a failure and secure the maximum effective screen area.

  Other objects, configurations and advantages of the present invention will be described in more detail with reference to the accompanying drawings. The accompanying drawings are merely examples.

It is a front view which shows the display apparatus which concerns on embodiment of this invention. It is a figure which shows the structure of the display apparatus shown in FIG. It is a figure which shows the use condition of the display apparatus of FIG. It is a figure which shows typically the display apparatus which concerns on another embodiment of this invention. It is a figure which shows typically the display apparatus which concerns on another embodiment of this invention.

  1 to 5, the same reference numerals indicate the same or corresponding parts. The display device of FIGS. 1 to 3 is used for monitoring or controlling the operation status of a train and the operation status of equipment at, for example, a railway operation command station, and has a comprehensive screen 1. The route map of the train to be displayed, the block section, the signal display, the current position of all trains traveling on the route, the distance between trains, and the operation status of the control device are displayed as the overall image information S1. It is.

  The vertical dimension and the horizontal dimension of the overall screen 1 are set according to the total distance and configuration (route configuration) of the route to be displayed. For example, when the route is set in a relatively limited area such as an urban subway, the general screen 1 is a square or a vertically long rectangle, and the route extends over a plurality of prefectures like the Shinkansen. When set widely, the general screen 1 is a horizontally long rectangle.

  The general screen 1 is composed of a plurality of, more specifically at least three or more individual screens. 1 and 2 is composed of four individual screens 11 to 14 arranged in a matrix along the vertical direction (or vertical direction) and the horizontal direction (or horizontal direction). By configuring the overall screen 1 of the display device with the individual screens 11 to 14, the risk of system down due to a failure is distributed, and as described above, a screen configuration according to the route configuration to be displayed is adopted. It becomes possible. That is, the number of installed individual screens 11 to 14 and the arrangement mode of the individual screens 11 constituting the general screen 1 are appropriately determined according to the route configuration.

  The individual screens 11 to 14 constituting the overall screen 1 display a part of the entire image information S1 displayed on the overall screen 1 according to the arrangement. Furthermore, the individual screens 11 to 14 have a complementary relationship as shown in FIG. More specifically, the individual screen 11 is paired with each of the other individual screens 12 to 14 constituting the general screen 1, and for example, when the individual screen 12 is not displayed as shown in FIG. On the individual screen 11, both the image information S11 originally displayed on the individual screen 11 and the image information S12 on the individual screen 12 are reduced and displayed integrally.

  On the other hand, the image information S13 and S14 originally projected on the individual screens 13 and 14 are displayed on the individual screens 13 and 14 as they are without being reduced. If the display device of FIG. 3 is expressed in different words, when the individual screen 12 is not displayed due to a failure, the general screen 1 constitutes a reduced screen, and the individual screen 11 displaying the image information S11 and S12 constitutes a reduced screen. The individual screens 13 and 14 each constitute a non-reduced screen.

  For convenience of explanation, the individual screen 11 has been described as a reduced screen. However, as shown in FIG. 2, the individual screens 11 to 14 are complementary to each other. A reduced display may be displayed on either of the screens 13 and 14. When any display failure due to a failure or the like occurs in any of the individual screens 11 to 14, it is set as appropriate to which individual screen (11 to 14) the image information (S11 to S14) of the failure screen is to be displayed in a reduced manner. can do.

  By the way, as already explained, various types of display devices of this type have been proposed and put into practical use. Specifically, in Japanese Patent Application Laid-Open No. 2000-89738 (Patent Document 1), for example, when the individual screen 11 breaks down, a line including the individual screens 11 and 12 is not used and is displayed on the general screen 1. An invention is disclosed in which the original entire image information S1 is reduced and displayed on the remaining individual screens 13 and 14 in a reduced manner.

  Japanese Patent Laid-Open No. 8-6532 (Patent Document 2) discloses individual screens 11 to 14 arranged in a matrix, and generating means for generating overall image information S1 to be displayed on the entire individual screens 11 to 14. In the meantime, there is disclosed an invention in which a reduction distribution mechanism is provided so that the size of each image information S11 to S14 is changed and distributed to the individual screens 11 to 14 to display the entire image information S1.

  Certainly, according to the above conventional display device, the entire image information S1 is reduced as a whole, so that the original layout is maintained, that is, in a state where there is no visually uncomfortable state, the remaining screen is displayed. Can be redisplayed.

  However, when this type of display device is used in a field where a very high degree of security is required, such as monitoring the operation status of a train or the operation status of equipment, for example, at a railway operation command center, Security issues arise. For example, when the individual screen 12 breaks down, the entire image information S1 is displayed in a reduced manner, so that the image information S12 on the healthy individual screens 13 and 14 that have not failed are displayed together with the image information S12 on the broken screen. As a result, an oversight such as an abnormal display is induced, resulting in trouble with train operation management.

  Furthermore, in order to avoid oversight such as the above-described abnormality display, the commander performs monitoring work on the basis of the overall image information S1 displayed in a reduced manner, and therefore, an excessive burden is imposed on the commander. Become.

  Therefore, when this type of display device is used in the field of railways where high security is required, it is required that the displayed information be grasped more securely than the formal visibility and no oversight occurs. Is done.

  In order to meet the above-described requirements, the general screen configuring the display device of FIGS. 1 to 3 includes a reduced screen and a non-reduced screen when at least one of the individual screens 11 to 14 is not displayed. The reduced screen includes image information of individual screens that are no longer displayed. According to this configuration, for example, when image information is no longer displayed on some individual screens due to a failure, a reduced screen in which the image information of the failure screen is displayed in a reduced manner is configured in the overall screen. A non-reduced screen is displayed in which the image information of a healthy individual screen that is not displayed is displayed as it is. Therefore, it is possible to provide a display device that can minimize the influence of a failure due to a failure and can secure the maximum effective screen area.

  More specifically, the display device includes at least three or more individual screens 11 to 14. For example, when the individual screen 11 is no longer displayed, the individual screen 11 includes the image information S11 of the individual screen 11 and the individual screen 11 individually. Both the image information S12 and the image information S12 on the screen 12 are reduced and displayed, and the individual screens 13 and 14 display the image information S13 and S14 without being reduced. According to this configuration, for example, the image information S12 that is no longer displayed due to a failure or the like is displayed on the individual screen 11 together with the image information S11. Therefore, the entire image information S1 to be displayed on the general screen 1 before and after the failure. There is no substantial change in the image information, and loss of the image information S12 is avoided.

  Moreover, by making the individual screen 11 a reduced screen, the lack of the image information S12 is complemented only by the individual screen 11, the individual screens 13 and 14 are not affected by the failure, and the image information S13 and S14 are not reduced. Is displayed. Therefore, it is possible to provide a display device that can minimize the influence of a failure due to a failure and can secure the maximum effective screen area.

  Furthermore, when the display device is used to monitor the operation status of the train and the operation status of the equipment at, for example, a railway operation command station, the commander must at least select an individual screen other than the individual screen 11 serving as a reduced screen. Since the monitoring work is performed on the screens 13 and 14 based on the image information S13 and S14 displayed on the non-reduced screen, an excessive burden is not imposed on the commander.

  4 and 5 are diagrams schematically showing a display device according to another embodiment of the present invention. 4 and 5 are embodiments in which the technical idea of the display device described with reference to FIGS. 1 to 3 is more specifically configured from the viewpoint of an input / output device.

  The display device of FIG. 4 includes an image information output device 2, video drivers 31 to 34, projection devices (projectors) 41 to 44, and a screen 5.

  The image information output device 2 outputs basic image information and updated image information. The basic image information includes a route map of a route to be displayed, a closed section, a traffic signal position, and the like. In the updated image information, the current position of all trains traveling on the same route, the distance between trains, the signal display, the operation status of the control equipment, etc. are input from the outside through the communication line. By integrating the information, the operation status of the train and the operation status of the control device on the route to be displayed are always output as the entire image information S1.

  The video drivers 31 to 34 are attached between the image information output unit 2 and the projectors 41 to 44, and output from the entire image information S1 input from the image information output unit 2 at each of the projectors 41 to 44. The power image information S11 to S14 is selected, and the selected image information S11 to S14 is output to the projectors 41 to 44. The video drivers 31 to 34 may constitute internal mechanisms of the projectors 41 to 44 as software components.

  Each of the projectors 41 to 44 projects the image information S11 to S14 input from the corresponding video drivers 31 to 34 onto the screen 5 through its projection mechanism (not shown). Although not necessarily clear from FIG. 4, well-known projectors 41 to 44 and a screen 5 can be used.

  The individual screens 11 to 14 are obtained by displaying image information S11 to S14 output from the projectors 41 to 44 on the screen 5. That is, the individual screens 11 to 14 constituting the general screen 1 (not shown) are obtained by displaying the image information S11 to S14 output from the projectors 41 to 44 corresponding to the individual screens 11 to 14 on the screen 5, respectively. .

  The embodiment of FIG. 4 can have all the advantages of the display device described with reference to FIGS. For example, when the individual screen 12 is not displayed due to a failure of the projector 42, the video driver 31 determines whether the original image information S 11 and the image information S 12 are based on the entire image information S 1 input from the image information output device 2. Both are selected, and the image information S11 and S12 are integrally reduced and output to the projector 41. On the other hand, the video drivers 33 and 34 output the image information S13 and S14 to the projectors 43 and 44 without being reduced. Therefore, it is possible to provide a display device capable of minimizing display defects due to a failure and increasing the effective screen portion as much as possible.

  The display device of FIG. 5 includes an image information output device 2, video drivers 31 to 34, and a plurality of display devices 61 to 64, and individual screens 11 to 14 are entire images output from the image information output device 2. The information S1 is subdivided by the video drivers 31 to 34 and displayed on the display devices 61 to 64. As the display devices 61 to 64, known video display devices such as liquid crystal, plasma, organic EL, and cathode ray tube can be used.

  The display device of FIG. 5 is characterized in that the projectors 44 to 44 and the screen 5 of FIG. 4 are replaced with display devices 61 to 64 in the mechanism constituting the individual screens 11 to 14. It is obvious that the embodiment of FIG. 5 can have all the advantages of the display device described with reference to FIGS.

  Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is. For example, one of the features of the display device according to the present invention is that when a part of a plurality of individual screens is no longer displayed, the total screen is configured by a reduced screen and a non-reduced screen, so that display due to a failure can be achieved. Because it is intended to minimize defects and make the effective screen as large as possible, it can be used as a non-railway field, for example, a general video field such as a movie or an advertisement, or a plant or power system monitoring device. Is obvious.

DESCRIPTION OF SYMBOLS 1 Comprehensive screen 11-14 Individual screen 2 Image information output device 31-34 Video driver 41-44 Projection apparatus (projector)
5 Screen 61-64 Display device S1 Screen information displayed on the general screen S11-S14 Image information

Claims (4)

A display device having a comprehensive screen composed of a plurality of individual screens,
The general screen is composed of a reduced screen and a non-reduced screen when at least one of the individual screens is no longer displayed.
The reduced screen includes image information of the individual screen that is no longer displayed.
Display device. The display device according to claim 1, comprising at least three or more individual screens,
The first individual screen that constitutes one of the three or more individual screens includes both the image information of the first individual screen and the image information of the second individual screen when the second individual screen is not displayed. Is displayed in a reduced size,
The third individual screen displays the image information without reducing it.
Display device. The display device according to claim 1, comprising a projector and a screen,
The individual screen is a display device in which image information output from the projector is displayed on the screen. The display device according to claim 1, comprising an image information output device and a plurality of displays,
In the individual screen, the image information output from the image information output device is displayed on one of the displays.
Display device.

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