WO2015170412A1 - Screen display system, management device, screen display method, and program - Google Patents

Abstract

A settings management device (41) comprises: a management device storage unit that stores environmental settings information which includes handling region information of a display device (1); and an information broadcasting unit that broadcasts the environmental settings information to each of a plurality of display terminals (2). An operation terminal (31) comprises a command creating unit that transmits, to each of the plurality of display terminals (2), a display request which includes a display image for display on a multi-screen display device (10), and a display image region in which the display image is displayed. Each of the plurality of display terminals (2) is provided with: a control device storage unit that stores the environmental settings information broadcast from the settings management device (41); and a display control unit that, on the basis of the display request and the handling region information, generates a handling image, which is from among the display images, for display on a corresponding display device (1), and that displays the handling image on the corresponding display device (1).

Description

Screen display system, management device, screen display method and program

The present invention relates to a screen display system, a management device, a screen display method, and a program. In particular, the present invention relates to a screen display system in which one screen is constituted by a plurality of display devices.

The multi-screen display system has a multi-large screen composed of multiple monitors. The multi-screen display system includes each display terminal of a plurality of display terminals that perform display on each monitor of the plurality of monitors. In the multi-screen display system, each display terminal of a plurality of display terminals draws only the display area of the multi-large screen, thereby virtually creating a huge large-screen monitor that cannot be reproduced by a single display terminal. It is a system to realize.

In the conventional multi-screen display system, there is a control server that grasps all display areas of each display terminal in the multi-large screen. The control server instructs display contents to each display terminal, so that a multi-large screen composed of a plurality of monitors can be seen as one screen.

There is also a need to operate the same multi-large screen simultaneously from a number of operation terminals. When a control command is transmitted from each of a plurality of operation terminals of the multi-screen display system, the control server receives a plurality of control commands transmitted from the plurality of operation terminals. The control server merges a plurality of received control commands, updates information such as window layout, and issues an instruction to each of the plurality of display terminals. In addition, each operation terminal transmits a request to the control server and acquires the latest information on the window arrangement, thereby updating the window display position displayed on the window display position editing screen of the operation terminal ( Patent Document 1).

Japanese Patent Laid-Open No. 09-204164

However, in a multi-screen display system that requires constant operation for monitoring or the like, it is necessary to narrow the range of influence when a single device fails. However, in the case of a centralized control system using a conventional control server, there is a problem that the entire multi-screen stops when the control server fails.
In order to solve this problem, there is a method in which a plurality of terminals connected on a network constituting a multi-screen display system are managed in a distributed and redundant manner. By this method, each display terminal can be directly controlled from an arbitrary operation terminal.

However, in order to maintain operability from a plurality of operation terminals, there is a problem that it is necessary to synchronize the environment setting information held in all display terminals and all operation terminals. The environment setting information includes real-time window arrangement information on a multi-large screen, assigned display area information of all display terminals, and the like.

The present invention has been made to solve the above-described problem, and can directly control the display terminal from the operation terminal and can synchronize the environment setting information of the operation terminal and the display terminal. Even if a failure occurs, a highly stable multi-screen display system is realized.

A screen display system according to the present invention includes:
In a screen display system that includes a plurality of control devices each having a display device, an operation device, and a management device, and that configures one screen by the plurality of display devices,
The management device
A management device storage unit that stores setting information including responsible area information indicating the position of the display device on the screen;
An information distribution unit that distributes the setting information to each of the plurality of control devices;
The operating device is:
A display request including display image information indicating a display image to be displayed on the screen, and display area information indicating a display image area for displaying the display image among display areas of the screen, wherein the display image of the screen A command generation unit that transmits a display request for displaying the display image in an area to each of the plurality of control devices;
Each of the plurality of control devices is
A control device storage unit that stores the setting information distributed from the information distribution unit;
Based on the display request received from the command generation unit and the responsible area information included in the setting information, a responsible image to be displayed on the display device is generated from the display images, and the generated responsible image is displayed. And a display control unit for displaying on the display device.

In a screen display system that includes a plurality of control devices each having a display device, an operation device, and a management device, and a plurality of the display devices constitute one screen, the management device positions the display device on the screen. A management device storage unit that stores setting information including assigned region information to be displayed; and an information distribution unit that distributes the setting information to each of the plurality of control devices, and the operation device displays a display image displayed on the screen. Display image information, and display area information indicating a display image area for displaying the display image in the display area of the screen, and displaying the display image in the display image area of the screen A command generation unit that transmits a display request to each of the plurality of control devices, and each of the plurality of control devices stores the setting information distributed from the information distribution unit. Based on the display request received from the control device storage unit, the command generation unit, and the responsible area information included in the setting information, generate a responsible image to be displayed on the display device among the display images, A display control unit that displays the generated assigned image on the display device, so that the control device can be directly controlled from the operation device, and the setting information of the operation device and the control device can be synchronized. Therefore, a highly stable screen display system can be realized.

1 is a diagram illustrating an example of a system configuration of a multi-screen display system according to Embodiment 1. FIG. It is a figure which shows an example of a structure of the system setting information (at least one part of environmental setting information) which concerns on Embodiment 1. FIG. It is a figure which shows an example of a structure of the real-time information (at least one part of environment setting information) which concerns on Embodiment 1. FIG. 3 is a diagram illustrating an example of a block configuration of an operation terminal according to Embodiment 1. FIG. 3 is a diagram illustrating an example of a block configuration of a display terminal according to Embodiment 1. FIG. 2 is a diagram illustrating an example of a block configuration of a main setting management device according to Embodiment 1. FIG. 2 is a diagram illustrating an example of a hardware configuration of an operation terminal, a display terminal, and a setting management device according to Embodiment 1. FIG. 6 is a diagram for explaining a relationship between a multi-screen display device according to Embodiment 1 and a display charge area of the display device. FIG. 6 is a diagram illustrating an example of a user operation in an edit screen display unit according to Embodiment 1. FIG. 4 is a flowchart showing a screen display process (process) in the screen display method of the multi-screen display system according to the first embodiment. 4 is a flowchart showing an information update process (process) of the multi-screen display system according to the first embodiment. 6 is a flowchart showing a responsible area changing process (processing) of the multi-screen display system according to the first embodiment. 5 is a flowchart showing a switching process (processing) of the multi-screen display system according to the first embodiment. 6 is a diagram illustrating an example of a system configuration of a multi-screen display system according to Embodiment 2. FIG. It is a figure which shows an example of the block configuration of the operating terminal (with setting management function) which concerns on Embodiment 2. FIG. It is a figure which shows an example of the block configuration of the display terminal (with setting management function) which concerns on Embodiment 2. FIG. FIG. 10 is a diagram illustrating an example of a block configuration of an operation terminal according to Embodiment 3. FIG. 10 is a diagram showing an example of a block configuration of a display terminal according to Embodiment 3. FIG. 10 is a diagram illustrating an example of a block configuration of a setting management apparatus according to a third embodiment. FIG. 10 is a diagram illustrating an example of a system configuration of a screen display system according to a fourth embodiment. 10 is a flowchart showing an operation terminal according to Embodiment 5 and a screen display pre-process (process) of the operation terminal. 14 is a flowchart showing an information update and command transmission process (process) of the setting management apparatus according to the fifth embodiment. 10 is a flowchart showing a screen display process (processing) of a display terminal according to Embodiment 5.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment, the directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are However, it is not intended to limit the arrangement or orientation of devices, instruments, parts, or the like.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating an example of a system configuration of a multi-screen display system 500 according to the present embodiment.
As shown in FIG. 1, the multi-screen display system 500 includes a multi-screen display device 10, a display terminal 2, operation terminals 31, 32, 33, setting management devices 41, 42, 43, and input devices 51, 52, 53. . The multi-screen display device 10, the display terminal 2, the operation terminals 31, 32, 33, the setting management devices 41, 42, 43, and the input devices 51, 52, 53 are connected via a network 700.
The multi-screen display system 500 includes a plurality of display terminals 2 (an example of a control device) each having a display device 1, operating terminals 31, 32, and 33 (an example of an operating device), and setting management devices 41, 42, and 43. It is an example of a screen display system provided with (an example of a management apparatus).

The multi-screen display device 10 includes a plurality of display devices 1. The multi-screen display device 10 is an example of one screen configured by a plurality of display devices 1.

Here, it is assumed that the multi-screen display device 10 includes display devices 1-11 to 1-nm (n and m are natural numbers). The display devices 1-11 to 1-nm are arranged in m units in the horizontal direction and n units in the vertical direction. Subscript parts 11, 12,..., N (m−1), nm of the display devices 1-11 to 1-nm correspond to the positions of the display device 1 in which the vertical and horizontal directions are arranged in n × m. To do. Any number of display devices 1 may be used. The display device 1 indicates, for example, an LCD, PDP, LED, DLP, projector, or the like.
When the display device 1 is described, it may indicate all of the display devices 1-11 to 1-nm or a part of the display devices 1-11 to 1-nm.

The display terminal 2 outputs an image to the display device 1. The display terminals 2-11 to 2-mn correspond to the display devices 1-11 to 1-mn, respectively. The display terminals 2-11 to 2-mn output images to the corresponding display devices 1-11 to 1-mn. Any number of display terminals 2 may be used. In addition, here, in order to simplify the explanation, one display device 1 is connected to one display terminal 2, but a plurality of display devices 1 may be connected to one display terminal 2. .
Reference to the display terminal 2 may refer to all of the display terminals 2-11 to 2-nm or a part of the display terminals 2-11 to 2-nm.
The display terminal 2 is an example of a control device that controls the display device 1.

The operation terminals 31, 32, and 33 receive operation requests from users and control the display terminal 2. Here, the multi-screen display system 500 includes three operation terminals 31, 32, and 33, but may be three or less or three or more.
When it is described as the operation terminal 30, it may indicate all of the operation terminals 31, 32, 33 or a part of the operation terminals 31, 32, 33. The operation terminal 30 is an example of an operation device.

Input devices 51, 52, and 53 are connected to operation terminals 31, 32, and 33, respectively. The user inputs an operation request using the input devices 51, 52, and 53. The operation terminals 31, 32, and 33 receive user operation requests input from the input devices 51, 52, and 53, respectively. The input devices 51, 52, and 53 are, for example, a mouse, a keyboard, a touch panel, and the like.
When described as the input device 50, it may refer to all of the input devices 51, 52, 53 or a part of the input devices 51, 52, 53.

The setting management devices 41, 42, and 43 manage environment setting information 603 including system setting information 601 and real-time information 602. The setting management devices 41, 42, and 43 are an example of an environment setting information management unit that manages environment setting information 603. The system setting information 601 (see FIG. 2) and the real-time information 602 (see FIG. 3) may be collectively referred to as environment setting information 603 (see FIGS. 2 and 3). Here, the multi-screen display system 500 includes three setting management devices 41, 42, and 43, but may be three or less or three or more.
When the setting management device 40 is described, it may indicate all of the setting management devices 41, 42, and 43 or a part of the setting management devices 41, 42, and 43. The setting management device 40 is an example of a management device.

When the multi-screen display system 500 includes two or more setting management devices 40, only one of them is the main setting management device. Here, the setting management device 41 is a main setting management device, and the setting management devices 42 and 43 are sub-setting management devices.

FIG. 2 is a diagram showing an example of the configuration of the system setting information 601 (at least a part of the environment setting information 603) according to the present embodiment.
FIG. 3 is a diagram showing an example of the configuration of the real-time information 602 (at least a part of the environment setting information 603) according to the present embodiment.
Environment setting information 603 including system setting information 601 and real-time information 602 is an example of setting information.

The main setting management device 41 multicasts environment setting information 603 including system setting information 601 and real-time information 602. The sub setting management devices 42 and 43 receive the environment setting information 603 distributed from the main setting management device 41 and keep the environment setting information 603 stored in the information storage unit 415 described later up-to-date.

As shown in FIG. 2, the system setting information 601 includes the screen size of the multi-screen display device 10, the operation terminal identification information list, the display terminal list, the registration window list, the terminal identification information of the main setting management device, and the transition priority. A list is set.
The identification information of the operation terminal 30 is information that can uniquely specify the terminal, such as the IP address, MAC address, or terminal name of the operation terminal 30.

The display terminal list includes identification information of each display terminal and responsible area information indicating a display responsible area of the display terminal on the coordinate system of the multi-screen display device 10. That is, the assigned area information indicates the position of the display device in the multi-screen display device 10.
The registered window list is a list of window information that can be displayed. The registered window list is a list of information specifying the contents of the window, such as media file names such as still images, moving images, and graphics, video stream distribution information, program start commands, and window identification information assigned to the information. It is.

The migration priority list is a list showing the priority of the migration destination setting management device when the main setting management device fails using terminal identification information. The migration priority list is an example of priority information for setting the priority order of each of the plurality of setting management devices 40.

As shown in FIG. 3, a display window list is set in the real-time information 602. The display window list includes a list of window identification information (display image information) and window display area information (display area information) of the window display image. The window identification information is information indicating a window display image displayed on the multi-screen display device 10. The window display area information is information indicating the window display area in the coordinate system of the multi-screen display device 10 for the window display image. Instead of the window identification information of the window being displayed, the display image itself may be set.
Hereinafter, the display image indicated by the window identification information is referred to as a window display image. A display area indicated by the window display area information is defined as a window display area.

FIG. 4 is a diagram illustrating an example of a block configuration of the operation terminal 31 according to the present embodiment.
As illustrated in FIG. 4, the operation terminal 31 includes a control unit 311, a command transmission unit 312, an information transmission unit 313, an information reception unit 314, an information storage unit 315, and an editing screen display unit 316. Since the configuration of the operation terminals 32 and 33 is the same as that of the operation terminal 31, the description thereof is omitted.

The control unit 311 controls the editing screen display unit 316 to display the editing screen based on the operation request signal input from the input device 51. The control unit 311 is an example of an input unit that inputs an operation request signal from the input device 51.
The control unit 311 analyzes input from the user using the editing screen and performs control based on the analysis result.

Further, the control unit 311 inputs a change instruction for changing the assigned area information from the input device 51. The control unit 311 changes the assigned area information included in the environment setting information 603 stored in the information storage unit 315 based on the input change instruction. The control unit 311 is an example of a changing unit.

The command transmission unit 312 generates a display control command based on a command transmission instruction given from the control unit 311. The command transmission unit 312 multicasts the generated display control command. The display control command includes information defining the window display method, such as window identification information, window display area information, state transition information (reproduction start, pause, end, etc.).
The command transmission unit 312 transmits a display control command (display request) including window information indicating a display image to be displayed on the multi-screen display device 10 and window display area information to each of the plurality of display terminals 2. It is an example.
The command transmission unit 312 also transmits the display control command to the setting management device 40 in order to distribute the display control command by multicast.

The information transmission unit 313 transmits the system setting information 601 changed in the operation terminal 31 to the main setting management device 41 based on an instruction given from the control unit 311. The information transmission unit 313 transmits the assigned area information (an example of changed setting information) changed by the control unit 311 to the main setting management apparatus 41 as changed area information (an example of changed setting information). It is an example of a transmission part.
The information receiving unit 314 receives the environment setting information 603 that is periodically distributed from the main setting management device 41 and stores all the received environment setting information 603 in the information storage unit 315.

The information storage unit 315 stores environment setting information 603 and the like. The information storage unit 315 is a storage device capable of storing data, such as an HDD (Hard / Disk / Drive), an SSD (Solid / State / Drive), or a flash memory. The information storage unit 315 is an example of an operation device storage unit that stores environment setting information 603 distributed from the main setting management device 41.

The edit screen display unit 316 acquires the environment setting information 603 stored in the information storage unit 315 based on an instruction from the control unit 311. The edit screen display unit 316 displays an edit screen that can be operated by the user using a GUI (Graphical / User / Interface) based on the acquired environment setting information 603. The editing screen accepts instructions such as selection of the window display image by the user and arrangement of the selected window display image.
The edit screen display unit 316 is an example of an input screen display unit that displays an edit screen (input screen) that receives information from the user based on the window identification information and the window display area information included in the environment setting information 603. .

FIG. 5 is a diagram showing an example of a block configuration of the display terminal 2-11 according to the present embodiment.
As shown in FIG. 5, the display terminal 2-11 includes a command reception unit 211, a display control unit 212, an information storage unit 213, and an information reception unit 214. Since the configuration of the display terminals 2-12 to 2-nm is the same as that of the display terminal 2-11, the description thereof is omitted.

The command receiving unit 211 receives a display control command distributed in multicast from the command transmitting unit 312 of the operation terminal 31.

The information storage unit 213 stores environment setting information 603. That is, area information, real-time information, and window data for creating a window (moving image data, still image data, application execution file, etc.) are saved.
The information storage unit 213 is an example of a control device storage unit that stores environment setting information 603 distributed from the main setting management device 41.

The display control unit 212 inputs window information, window display area information, state transition information, and the like included in the display control command from the command receiving unit 211. Based on the environment setting information 603 stored in the information storage unit 213, the display control unit 212 determines whether or not a window display area is included in the display charge area of the display terminal 2-11.

When the display area of the display terminal 2-11 includes a window display area, the display control unit 212 controls reproduction of the specified window based on the window information and the state transition information included in the display command. Further, the display control unit 212 converts the window display area information into a coordinate system on the display terminal 2-11, and displays the window in the converted area.
That is, the display control unit 212 receives the display control command, generates a responsible image to be displayed on the corresponding display device 1-11 among the window display images based on the responsible region information included in the environment setting information 603, The generated assigned image is displayed on the display device 1-11.

The information receiving unit 214 receives the environment setting information 603 that is periodically distributed from the main setting management device 41, and stores at least the assigned area information included in the environment setting information 603 in the information storage unit 213.

FIG. 6 is a diagram illustrating an example of a block configuration of the main setting management apparatus 41 according to the present embodiment.
As illustrated in FIG. 6, the setting management device 41 includes a command monitoring unit 411, a main terminal information receiving unit 412, an information distribution unit 413, an information receiving unit 414, an information storage unit 415, and a switching unit 416. The block configuration of the sub setting management devices 42 and 43 is the same as that of the main setting management device 41, and thus the description thereof is omitted.

The command monitoring unit 411 receives the display control command transmitted from the command transmission unit 312. The command monitoring unit 411 receives not only the operation terminal 31 but also display control commands transmitted from the command transmission units of the operation terminals 32 and 33. The command monitoring unit 411 updates the display window list of the real-time information 602 stored in the information storage unit 415 based on the display control command.

The command monitoring unit 411 updates the window identification information and window display area information set in the display window list to the window identification information and window display area information included in the display control command.
Alternatively, the command monitoring unit 411 may simply store the window identification information and window display area information included in the display control command in the information storage unit 415 as the latest information. The command monitoring unit 411 is an example of an information update unit that stores the window identification information and the window display area information included in the received display control command in the environment setting information 603 stored in the information storage unit 415. .

The main terminal information receiving unit 412 receives the environment setting information 603 that is updated by any of the operation terminals 31 to 33 and transmitted to the main setting management device 41, and the information storage unit 415 is based on the received environment setting information 603. The environment setting information 603 stored in the is updated. Here, the environment setting information 603 transmitted to the main setting management apparatus 41 is, for example, an instruction to change system setting information from the user.
The main terminal information reception unit 412 receives a change instruction (post-change area information) from the information transmission unit of the controller device, and updates information in charge area information included in the environment setting information 603 based on the received change instruction It is an example of a part.

The information distribution unit 413 periodically multicasts the environment setting information 603 (system setting information 601 and real-time information 602) stored in the information storage unit 415.

If the information receiving unit 414 is a sub setting management device, the information receiving unit 414 receives the environment setting information 603 distributed from the main setting management device, and stores all the received environment setting information 603 in the information storage unit 415. To do.
The information storage unit 415 is a storage device that can store data, such as an HDD, an SSD, or a flash memory.

The switching unit 416 determines whether the terminal identification information indicating the main setting management device included in the environment setting information 603 stored in the information storage unit 415 is the same as its own terminal identification information. When it is determined that the switching unit 416 is the main setting management device, the switching unit 416 operates the information distribution unit 413 and stops the information reception unit 414. When the switching unit 416 determines that the switching unit 416 is not the main setting management device, the switching unit 416 stops the information distribution unit 413 and operates the information reception unit 414.

The switching unit 416 acquires the migration priority list included in the environment setting information 603 stored in the information storage unit 415. The switching unit 416 determines its own priority by the processing device based on the acquired migration priority list. When the determined priority order is not the highest order, the switching unit 416 stops the execution of the information distribution unit 413 and operates the information reception unit 414. The switching unit 416 operates the information distribution unit 413 and stops the execution of the information reception unit 414 when the determined priority order is the highest.

Also, the switching unit 416 determines whether or not the information receiving unit 414 has received multicast distribution. The switching unit 416 determines whether or not the information receiving unit 414 has received the multicast distribution and the main setting management device based on the determination result and the migration priority list included in the environment setting information 603 of the information storage unit 415. The function of switching the terminal identification information is also provided.

FIG. 7 is a diagram illustrating an example of a hardware configuration of the operation terminal 30, the display terminal 2, and the setting management device 40 according to the present embodiment.
A hardware configuration example of the operation terminal 30, the display terminal 2, and the setting management apparatus 40 will be described with reference to FIG.

The operation terminal 30, the display terminal 2, and the setting management device 40 are computers, and each element of the operation terminal 30, the display terminal 2, and the setting management device 40 can be realized by a program.
As hardware configurations of the operation terminal 30, the display terminal 2, and the setting management device 40, an arithmetic device 901, an external storage device 902, a main storage device 903, a communication device 904, and an input / output device 905 are connected to the bus.

The arithmetic device 901 is a CPU (Central Processing Unit) that executes a program.
The external storage device 902 is, for example, a ROM (Read Only Memory), a flash memory, or a hard disk device.
The main storage device 903 is a RAM (Random / Access / Memory).
The communication device 904 is, for example, a communication board or the like, and is connected to a LAN (Local / Area / Network) or the like. The communication device 904 is not limited to a LAN, but includes an IP-VPN (Internet, Protocol, Private, Network), a wide area LAN, an ATM (Asynchronous / Transfer / Mode) network, a WAN (Wide / Area / Network), or the Internet. It does not matter if it is connected to. LAN, WAN, and the Internet are examples of networks.
The input / output device 905 is, for example, a mouse, a keyboard, a display device, or the like. Instead of the mouse, a touch panel, touch pad, trackball, pen tablet, or other pointing device may be used. The display device may be an LCD (Liquid / Crystal / Display), a CRT (Cathode / Ray / Tube), or another display device.

The program is normally stored in the external storage device 902, and is loaded into the main storage device 903 and sequentially read into the arithmetic device 901 and executed.
The program is a program that realizes a function described as “unit” shown in the block configuration diagram.
A program product (computer program product) includes a storage medium, a storage device, and the like on which a program that realizes the function of “unit” shown in FIGS. A program product loads a computer-readable program regardless of its appearance.

Further, an operating system (OS) is also stored in the external storage device 902. At least a part of the OS is loaded into the main storage device 903, and the arithmetic unit 901 executes the OS while “˜” shown in the block configuration diagram. The program that realizes the function of “part” is executed.
An application program is also stored in the external storage device 902, and is sequentially executed by the arithmetic device 901 while being loaded in the main storage device 903.
Information such as “˜table” is also stored in the external storage device 902.

In addition, “determining”, “determining”, “extracting”, “detecting”, “setting”, “registering”, “selecting”, “generating”, Information, data, signal values, and variable values indicating processing results such as “input of” and “output of” are stored in the main storage device 903 as files.
In addition, data received by the operation terminal 30, the display terminal 2, and the setting management device 40 is stored in the main storage device 903.
Further, the encryption key / decryption key, random number value, and parameter may be stored in the main storage device 903 as a file.

The configuration of FIG. 7 is merely an example of the hardware configuration of the operation terminal 30, the display terminal 2, and the setting management device 40. The hardware configuration of the operation terminal 30, the display terminal 2, and the setting management device 40 is as follows. It is not limited to the configuration shown in FIG.

Next, the operation of multi-screen display system 500 according to the present embodiment will be described.
In order to simplify the description of the operation, it is assumed that the multi-screen display system 500 has the premise described below.
Here, the priority of transition to the main setting management device is as follows: priority first: setting management device 41, second priority: setting management device 42, and third priority: setting management device 43. Further, it is assumed that the terminal identification information of the setting management device 41 is described in the terminal identification information of the main setting management device.
The display device 1 includes four display devices 1-11 to 1-21, and the display terminal 2 includes four display terminals 2-11 to 2-22.

FIG. 8 is a diagram for explaining the relationship between the multi-screen display device 10 according to the present embodiment and the display charge areas of the display devices 1-11 to 1-22. As shown in FIG. 8, the image display area is represented by (l, t)-(r, b) using the coordinates of the upper left corner and the lower right corner of the rectangle. The coordinates of the upper left corner are (l, t), and the coordinates of the lower right corner are (r, b). Actual display area information may be expressed by an offset (l, t) and a size (rl, bt). The display area of the display device 1-mn becomes the display charge area of the display terminal 2-mn.

As shown in FIG. 8, the display charge area of the display device 1-11 is (l11, t11)-(r11, b11), and the display charge area of the display device 1-12 is (l12, t12)-(r12, b12), the display charge area of the display device 1-21 is (l21, t21)-(r21, b21), and the display charge area of the display device 1-22 is (l22, t22)-(r22, b22). .

FIG. 9 is a diagram illustrating an example of a user operation on the edit screen display unit 316 according to the present embodiment. The user performs an operation of arranging the still image A on the multi-screen of the multi-screen display device 10 using the input device 51 while looking at the edit screen display unit 316.
As shown in FIG. 9, the coordinates of the upper left corner of the window display area of still image A are (lA, tA), and the coordinates of the lower right corner are (rA, bA).
In the example of FIG. 9, a still image is used as the window display image for ease of explanation. However, it may be a moving image, a video stream, or a program. The window display image may be any image as long as it is displayed when the display control unit 212 performs reproduction.

FIG. 10 is a flowchart showing a screen display process (process) in the screen display method of multi-screen display system 500 according to the present embodiment.
The screen display process (process) in the screen display method of the multi-screen display system 500 will be described with reference to FIG.

(ST0) The display terminal 2-11 receives the environment setting information 603 periodically multicast from the main setting management device 41, and stores the received environment setting information 603 in the information storage unit 213 (control device storage) Process (processing)).
(ST1) The control unit 311 of the operation terminal 31 analyzes the input signal from the input device 51 by the processing device. The control unit 311 recognizes that the still image A is selected as the window display image from the registered window list stored in the information storage unit 315. In addition, the control unit 311 recognizes that the still image A is arranged in a window display area that extends over all the display devices 1-11, 1-12, 1-13, and 1-14 of the multi-screen display device 10.

(ST2) From the recognition result in ST1, the control unit 311 displays the display control command (state “reproduction start”, window display image “still image A”, window display area (lA, tA) − (rA, bA), The command transmission unit 312 is instructed to transmit the relationship 0).
(ST3) The command transmission unit 312 distributes the display control command by multicast.
ST2 and ST3 are instruction generation steps (processes).

(ST4) The command receiving unit 211 of the display terminal 2-11 receives the display control command. The command receiving unit 211 inputs information included in the received display control command to the display control unit 212.

(ST5) The display control unit 212 determines whether the window display area included in the display control command input from the command receiving unit 211 is included in the display charge area of the display terminal 2-11.
In the display control unit 212, the window display area (lA, tA)-(rA, bA) included in the display control command is included in the display charge area (l11, t11)-(r11, b11) of the display terminal 2-11. It is determined whether or not.
When the display area is included in the display charge area of the display terminal 2-11 (YES in ST5), the process proceeds to ST7.
If the display area is not included in the display area of display terminal 2-11 (NO in ST5), the process is terminated.

(ST7) Since the coordinates of the window display area are the coordinates of the coordinate system of the entire multi-screen display device 10, the display control unit 212 uses the coordinates of the window display area as the origin at the upper left of the display charge area of the display terminal 2-11. Convert to a coordinate system.
The process of converting the coordinates of the window display area into the coordinate system of the assigned area may be performed at the time of display processing by the display terminal, or may be set for each display terminal at the time of command transmission.

(ST8) The display control unit 212 acquires the still image A from the information storage unit 213 based on the window identification information obtained from the display control command. The display control unit 212 creates image data of the assigned image to be displayed on the display device 1-11 based on the acquired still image A, and displays it on the coordinates of the converted window display area in the display device 1-11. .
ST5 to ST8 are display control steps (processes).
Above, description of the screen display process (process) in the screen display method of the multi-screen display system 500 is completed.

The processing of the display terminal 20 from (ST4) to (ST8) is the same for the display terminals 2-12, 2-13, and 2-14.

FIG. 11 is a flowchart showing an information update process (process) of multi-screen display system 500 according to the present embodiment.
The information update process (process) of the multi-screen display system 500 will be described with reference to FIG.

(ST9) The command monitoring unit 411 of the main setting management device 41 receives a display control command from the operation terminal 31.
(ST10) The command monitoring unit 411 updates the display window list of the real-time information 602 stored in the information storage unit 415 based on the received display control command.

(ST11) The information distribution unit 413 distributes the updated display window list by multicast.
Note that the information distributed in ST11 may be anywhere in the environment setting information 603 as long as the information includes the updated portion of the display window list. Further, apart from the periodic multicast distribution of the environment setting information 603, it may be distributed at the time of update.

(ST12) The information reception unit 314 of the operation terminal 31 receives the display window list distributed from the information distribution unit 413 of the main setting management device 41.
(ST13) The information receiving unit 314 updates the display window list in the information storage unit 315 based on the received display window list.
(ST14) The edit screen display unit 316 acquires the information of the updated display window in the information storage unit 315 and reflects it on the edit screen.

This is the end of the description of the information update process (processing) of the multi-screen display system 500.
The operation terminals 32 and 33 perform (ST12) to (ST14) in the same manner. The sub setting management devices 42 and 43 perform (ST12) to (ST13). That is, the sub setting management devices 42 and 43 receive the display window list distributed from the information distribution unit 413 of the main setting management device 41 by the information receiving units 422 and 432. Then, the information receiving units 422 and 432 update the display window list in the information storage units 425 and 435 based on the received display window list.

FIG. 12 is a flowchart showing the assigned area changing process (process) of multi-screen display system 500 according to the present embodiment.
With reference to FIG. 12, the assigned area changing process (processing) of the multi-screen display system 500 will be described.
Here, for example, a processing procedure when the user inputs an instruction to change the display charge area of the display device 1-12 from the operation terminal 31 will be described. When an instruction to change the display area of the display device 1-12 is input to the multi-screen display system 500, the system setting information 601 needs to be updated.

(ST15) The control unit 311 of the operation terminal 31 analyzes the input signal from the input device 51 and recognizes that the display charge area of the display device 1-12 has been changed.
(ST16) Based on the recognition result in ST15, control unit 311 acquires and changes the display charge area of display terminal 2-12 in the display terminal list of system setting information 601 stored in information storage unit 315. .

(ST17) The control unit 311 inputs changes to the display area of the display terminal 2-12 to the information transmission unit 313.
(ST18) The information transmission unit 313 acquires terminal identification information of the main setting management device 41 from the information storage unit 315. The information transmission unit 313 transmits changes to the display area of the display terminal 2-12 (hereinafter referred to as display terminal information) to the main setting management device 41 identified from the acquired terminal identification information.

(ST19) The main terminal information receiving unit 412 of the main setting management device 41 receives display terminal information from the operation terminal 31. The main terminal information receiving unit 412 updates the display terminal list of the system setting information 601 stored in the information storage unit 415 based on the received display terminal information.
(ST20) The information distribution unit 413 distributes the updated display terminal list by multicast.
The subsequent processing is the same processing as ST12 to ST14.
This is the end of the description of the assigned area changing process (processing) of the multi-screen display system 500.

FIG. 13 is a flowchart showing a switching process (processing) of multi-screen display system 500 according to the present embodiment.
A switching process (processing) of multi-screen display system 500 according to the present embodiment will be described with reference to FIG.
Here, an operation when the main setting management apparatus 41 fails and multicast distribution of the environment setting information 603 by the information distribution unit is stopped will be described.

(ST21) The switching unit 426 of the sub setting management device 42 detects that the information receiving unit 424 has not received the multicast distribution.
(ST22) When the switching unit 426 detects that the information receiving unit 424 has not received the multicast distribution, the switching unit 426 acquires the migration priority list included in the system setting information 601 from the information storage unit 415.
(ST23) The switching unit 426 updates the terminal identification information of the main setting management device in the system setting information 601 to the terminal identification information of the second priority in the migration priority list based on the acquired migration priority list. To do.

(ST24) The switching unit 426 determines whether or not the terminal identification information of the updated main setting management apparatus is the same as its own terminal identification information.
If the terminal identification information of the main setting management apparatus is the same as its own terminal identification information (YES in ST24), the process proceeds to ST26.
If the terminal identification information of the main setting management apparatus is not the same as its own terminal identification information (NO in ST24), the process ends.

(ST26) The switching unit 426 operates the information distribution unit 423 and stops the information reception unit 424.
(ST27) The information distribution unit 423 starts multicast distribution of the environment setting information 603.
Similarly, the sub setting management device 43 performs (ST21) to (ST27). However, since the priority of the setting management device 42 is higher, NO is determined in ST24, and the process is terminated.

Note that the information distributed in ST27 may be any information in the environment setting information 603 as long as the terminal identification information of the main setting management apparatus in the system setting information 601 is included. In addition to the periodic distribution, the distribution may be performed at the time of updating.

(ST28) The information reception unit 314 of the operation terminal 31 receives the environment setting information 603 (including the updated terminal identification information of the main setting management device) distributed from the information distribution unit 423.
(ST29) The information reception unit 314 updates the terminal identification information of the main setting management device stored in the information storage unit 315 based on the received environment setting information 603.
The operation terminals 32 and 33 perform (ST28) to (ST29) in the same manner.
This is the end of the description of the switching process (processing) of the multi-screen display system 500.

As described above, in the description of the present embodiment, multicast transmission is used as the transmission method from the command transmission unit 312. However, it may be transmitted in order by unicast to all display terminals and all setting management devices.
When transmitting by unicast, you may transmit only to the main setting management apparatus identified by the terminal identification information of the main setting management apparatus distributed as environment setting information instead of all the setting management apparatuses. Further, the display terminal that is actually displayed by the command transmission unit 312 is specified based on the window display area information and the assigned area information of all display terminals included in the environment setting information, not the entire display terminal, and the corresponding display You may transmit only to a terminal by unicast.

In addition, when the window includes a video stream, it may include a distribution server that distributes the video stream outside the constituent devices, and further a setting management device may be provided on the distribution server. The above variations are the same in all the following embodiments.

Further, the functional block configurations of the display terminal 2, the operation terminal 30, and the setting management device 40 are not limited to the block configurations described in the first embodiment. Other block configurations may be used. The components included in the display terminal 2, the operation terminal 30, and the setting management device 40 are arbitrary.

As described above, in the multi-screen display system 500 according to the present embodiment, a display terminal to which one or a plurality of display devices are connected is connected by a plurality of networks, and each display terminal has only a responsible display area. It is a multi-large screen system for drawing. The multi-screen display system 500 can be controlled from a plurality of operation terminals, and includes a plurality of setting management devices. In the multi-screen display system 500, when a window on a multi-large screen is operated from an arbitrary operation terminal, the contents can be simultaneously reflected on the screens of other operation terminals. Furthermore, since the multi-screen display system 500 does not concentrate the control processing on one device, it is possible to construct a system that is more stable and can be recovered immediately even if a setting management device that distributes environment setting information fails. .

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.
In this embodiment, components having the same functions as those described in the first embodiment are denoted by the same reference numerals, and the description thereof may be omitted.
In the present embodiment, a case will be described in which some functions of the setting management apparatus 40 described in the first embodiment are mounted on an operation terminal and a display terminal.

FIG. 14 is a diagram illustrating an example of a system configuration of a multi-screen display system 501 according to the present embodiment.
The operation terminals (with setting management function) 61 and 62 are provided with functions equivalent to those of the setting management device 41 in the operation terminals 31 and 32.
The display terminals (with setting management function) 71 and 72 are provided with functions equivalent to those of the setting management apparatus 41 in the display terminals 2-11 and 2-m1.

The configuration of the operation terminals (with setting management function) 61 and 62 and the display terminals (with setting management function) 71 and 72 is merely the addition of the components of the setting management device 41 to the operation terminals 31 and 32 and the display terminal 2-11. The structure of may be sufficient. Alternatively, overlapping functions may be integrated as shown in FIGS.
In FIG. 14, the other components are the same as those in the first embodiment, and thus the description thereof is omitted.

FIG. 15 is a diagram showing an example of a block configuration of an operation terminal (with a setting management function) 61 according to the present embodiment.
The functions of the control unit 311, the command transmission unit 312, the information transmission unit 313, the edit screen display unit 316, the command monitoring unit 411, the main terminal information reception unit 412, the information distribution unit 413, and the switching unit 416 are the operation terminal 31, setting management This is the same as that provided in the device 41.

As shown in FIG. 15, the information receiving unit 314 in the operation terminal 31 described in the first embodiment and the information receiving unit 414 of the setting management device 41 are configured as one functional block. Further, the information storage unit 315 in the operation terminal 31 described in the first embodiment and the information storage unit 415 of the setting management device 41 are configured as one functional block.

FIG. 16 is a diagram showing an example of a block configuration of the display terminal (with setting management function) 71 according to the present embodiment.
The functions of the command reception unit 211, the display control unit 212, the command monitoring unit 411, the main terminal information reception unit 412, the information distribution unit 413, and the switching unit 416 are the same as those provided in the operation terminal 31 and the setting management device 41.

As shown in FIG. 16, an information receiving unit 414 of the setting management device 41 is provided instead of the information receiving unit 214 in the display terminal 2-11 described in the first embodiment. Further, the information storage unit 213 in the display terminal 2-11 described in the first embodiment and the information storage unit 415 of the setting management device 41 are configured as one functional block. That is, the information storage unit 213 in the display terminal 2-11 of the first embodiment and the information storage unit 415 of the setting management device 41 are shared.

15 and 16 are the same as the operations described in the first embodiment, and thus the description thereof is omitted.

Note that the functional block configurations of the display terminal 2, the operation terminal 30, and the setting management device 40 are not limited to the block configurations described in the second embodiment. Other block configurations may be used. The components included in the display terminal 2, the operation terminal 30, and the setting management device 40 are arbitrary.

As described above, according to the multi-screen display system 501 according to the present embodiment, even if a terminal other than the display terminal and the operation terminal is not provided in the system, the same system as in the first embodiment is provided. Can be built.

Embodiment 3 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.
In this embodiment, components having the same functions as those described in the first embodiment are denoted by the same reference numerals, and the description thereof may be omitted.

The difference between the present embodiment and the first embodiment is that the operation terminal 30, the display terminal 2, and the setting management device 40 synchronize the time of the internal clock.
In multi-screen display system 502 according to the present embodiment, the display control command transmitted from operation terminal 30 includes the scheduled execution time (an example of display time) indicating the time for displaying the window display image on the display device. In the multi-screen display system 502 according to the present embodiment, the environment setting information 603 distributed from the main setting management apparatus 41 includes the scheduled execution time (an example of the update time) indicating the update time. Thereby, the time when the display terminal 2 receives the received display control command and starts the display can be completely synchronized with the time when the environment setting information is updated.

Since the system configuration of the multi-screen display system 502 according to the present embodiment is the same as that of the first embodiment, description thereof is omitted.

FIG. 17 is a diagram illustrating an example of a block configuration of the operation terminal 31 according to the present embodiment.
17, in addition to the block configuration described in the first embodiment, the operation terminal 31 includes a time measurement processing unit 317 and a time acquisition unit 318.
The time measurement processing unit 317 is an internal clock of the operation terminal 31.
The time acquisition unit 318 acquires the time from the time measurement processing unit 317 and outputs the time to the control unit 311.

The control unit 311 generates a time obtained by adding a certain time to the time input from the time acquisition unit 318 as the scheduled execution time.
The control unit 311 adds the generated scheduled execution time to an instruction to the command transmission unit 312 and outputs the instruction to the command transmission unit 312. The command transmission unit 312 distributes the scheduled execution time included in the instruction input from the control unit 311 in the display control command.

In addition, the control unit 311 adds the generated scheduled execution time to the instruction to the information transmission unit 313 and outputs it to the information transmission unit 313. The information transmission unit 313 transmits the scheduled execution time included in the instruction input from the control unit 311 in the system setting information 601.

When the information receiving unit 314 receives the environment setting information 603 from the main setting management device 41, the control unit 311 updates the environment setting information 603 in the information storage unit 315 based on the received environment setting information 603. At this time, the control unit 311 sets the update timing of the environment setting information 603 in the information storage unit 315 as the scheduled execution time sent in addition to the environment setting information 603. The control unit 311 acquires the current time from the time acquisition unit 318, waits for the current time to become the scheduled execution time, and updates the environment setting information 603.
The control unit 311 is an example of an operating device control unit that updates the environment setting information 603 at the scheduled execution time distributed from the information distribution unit.

FIG. 18 is a diagram showing an example of a block configuration of the display terminal 2-11 according to the present embodiment.
As shown in FIG. 18, the display terminal 2-11 includes a time measuring unit 217 and a time acquisition unit 218 in addition to the block configuration described in the first embodiment.
The time measuring unit 217 is an internal clock of the display terminal 2-11.
The time acquisition unit 218 acquires the time from the time measurement processing unit 217 and outputs the time to the display control unit 212.

The command transmission unit 312 of the operation terminal 31 distributes the scheduled execution time in the display control command.
When the display control unit 212 starts display by the display control command, the display control unit 212 starts display at the scheduled execution time included in the display control command. The display control unit 212 acquires the current time from the time acquisition unit 318, waits for the acquired current time to become the scheduled execution time, and starts display.
The display control unit 212 is an example of a control device control unit that displays a window display image on the display device 1-11 at the scheduled execution time included in the display control command transmitted from the command transmission unit 312 of the operation terminal 31.

FIG. 19 is a diagram illustrating an example of a block configuration of the setting management device 41 according to the present embodiment.
As illustrated in FIG. 19, the setting management device 41 includes a time measurement processing unit 417, a time acquisition unit 418, and a management control unit 419 in addition to the block configuration described in the first embodiment.
The time measurement processing unit 417 is an internal clock of the setting management device 41.
The time acquisition unit 418 acquires the time from the time measurement processing unit 417 and outputs the time to the management control unit 419.

The management control unit 419 controls the timing for updating the environment setting information 603 stored in the information storage unit 415 based on the information received by the command monitoring unit 411, the main terminal information receiving unit 412, and the information receiving unit 414. .
The management control unit 419 controls the timing for updating the environment setting information 603 based on the received display control command and the scheduled execution time sent in addition to the received environment setting information 603.

The management control unit 419 controls to update the environment setting information 603 at the scheduled execution time included in the received display control command and the received environment setting information 603. The management control unit 419 acquires the current time from the time acquisition unit 318, and waits for the acquired current time to become the scheduled execution time, and updates the environment setting information 603.
When the environment distribution information 603 is distributed by the information distribution unit 413, the management control unit 419 distributes the time information obtained by adding a certain time to the time acquired from the time acquisition unit 418 as the scheduled execution time together with the environment setting information.

The management control unit 419 is an example of an update control unit that updates the environment setting information 603 at the scheduled execution time based on the received display control command and the received environment setting information 603. In addition, the management control unit 419 is an example of a distribution control unit that performs control so that the scheduled update time is added to the environment setting information 603 when the environment setting information 603 is distributed by the information distribution unit 413.
The management control unit 419 is a configuration unit that has both the function of the update control unit and the function of the distribution control unit.

Note that the functional block configurations of the display terminal 2, the operation terminal 30, and the setting management device 40 are not limited to the block configurations described in the third embodiment. Other block configurations may be used. The components included in the display terminal 2, the operation terminal 30, and the setting management device 40 are arbitrary.

As described above, according to the multi-screen display system 502 according to the present embodiment, it is possible to further improve the synchronism of information of the entire system.

Embodiment 4 FIG.
In the present embodiment, differences from the first embodiment will be mainly described. In this embodiment, components having the same functions as those described in the first embodiment are denoted by the same reference numerals, and the description thereof may be omitted.

FIG. 20 is a diagram illustrating an example of a system configuration of a multi-screen display system 503 according to the present embodiment.
The multi-screen display system 503 is connected to the operation information transmission unit 81 included in the display terminal 2-11, the operation information transmission unit 82 included in the display terminal 2-12, the operation information transmission unit 83 included in the operation terminal 32, and the network 700. The operation information transmitting unit 84 is provided.

The operation information transmitters 81, 82, 83, 84 receive environment setting information 603 that is multicast-distributed from the main setting management device 41. The operation information transmission units 81, 82, 83, 84 acquire terminal identification information (main management device information) of the main setting management device 41 based on the received environment setting information 603. The operation information transmitters 81, 82, 83, and 84 transmit the terminal operation information of the own device to the main setting management device 41 identified by the acquired terminal identification information.

Terminal operation information (terminal information) is operation information of terminals such as the display terminal 2 and the operation terminal 30. The operation information is, for example, CPU load, CPU temperature, memory usage, and the like. Further, the terminal operation information may be information other than those necessary for the operation of the multi-screen display system 503. For example, the operation information included in the display terminal 2 may be a display window list displayed on the corresponding display device 1. In the case of the operation information transmitting unit 84 connected to the network 700, information related to communication may be transmitted to the main setting management apparatus 41 as terminal operation information.

The operation is the same as that after ST17 of the processing procedure when the display charge area of the display device 1-12 in the first embodiment is changed.

Note that the functional block configurations of the display terminal 2, the operation terminal 30, and the setting management device 40 are not limited to the block configurations described in the fourth embodiment. Other functional block configurations may be used. The components included in the display terminal 2, the operation terminal 30, and the setting management device 40 are arbitrary.

The multi-screen display system 503 according to the present embodiment can synchronize any information necessary for operation.

Embodiment 5 FIG.
In the present embodiment, differences from the first embodiment will be mainly described. In this embodiment, components having the same functions as those described in the first embodiment are denoted by the same reference numerals, and the description thereof may be omitted.

The multi-screen display system 500 according to Embodiment 1 is configured to send a display control command (display request) directly from the operation terminal 30 (operation device) to the display terminal 2 (control device) by multicast.
In the present embodiment, when a display control command is transmitted from the operation terminal 30, it is once transmitted to the main setting management device 40 (41), and the display control command and environment setting are transmitted from the main setting management device 40 (41). Information 603 is multicast distributed to all devices. Accordingly, the main setting management device 40 (41) distributes the display control command to the plurality of display terminals 2 and distributes the environment setting information 603 to all the devices.

The configuration of multi-screen display system 500 according to the present embodiment is the same as that described in the first embodiment.
FIG. 21 is a flowchart showing a screen display pre-process (process) of the display terminal 2 and the operation terminal 30 according to the present embodiment. FIG. 22 is a flowchart showing an information update and command transmission process (process) of the setting management apparatus 40 according to the present embodiment. FIG. 23 is a flowchart showing a screen display process (process) of display terminal 2 according to the present embodiment.

A screen display pre-process (process) of the display terminal 2 and the operation terminal 30 according to the present embodiment will be described with reference to FIG.
(ST100) to (ST102) are the same processes as (ST0) to (ST1) of FIG.
In (ST103), the command transmission unit 312 of the operation terminal 31 transmits a display control command to the main setting management device 41. Here, the command transmission unit 312 transmits the display control command to the main setting management device 41 instead of multicast distribution.
Above, description about the screen display pre-process (process) of the display terminal 2 and the operation terminal 30 is complete | finished.

Next, the information update and command transmission process (process) of the setting management apparatus 40 according to the present embodiment will be described with reference to FIG.
(ST109) to (ST110), (ST112) to (ST114) are the same processes as (ST9) to (ST10) and (ST12) to (ST14) of FIG. 11 described in the first embodiment. Description is omitted.

In (ST111), the information distribution unit 413 distributes the updated display window list and the display control command transmitted from the operation terminal 31 by multicast.
Note that the display window list distributed in (ST111) may be anywhere in the environment setting information 603 as long as the information includes the updated portion of the display window list. Further, the display window list may be distributed at the time of updating separately from the multicast distribution of the periodic environment setting information 603.
Above, description about the information update of the setting management apparatus 40 and a command transmission process (process) is complete | finished.

The screen display process (process) of the display terminal 2 will be described with reference to FIG.
Since (ST104) to (ST108) are the same processes as (ST4) to (ST8) of FIG. 10 described in the first embodiment, description thereof is omitted.
However, in (ST4), the command receiving unit 211 of the display terminal 2-11 receives a display control command from the main setting management device 41.
Above, description about the screen display process (process) of the display terminal 2 is complete | finished.

According to the multi-screen display system 500 according to the present embodiment, the main setting management device 41 can multicast the display control command instead of the plurality of operation terminals 30 multicasting the display control command. Therefore, the display control command can be transmitted sequentially to the display terminal 2, and the screen display process can be simplified.

Note that the functional block configurations of the operation terminal, the display terminal, and the setting management device are not limited to the block configurations described in the first to fifth embodiments. The block configuration described in the first to fifth embodiments is arbitrary. Block configurations other than those described in the first to fifth embodiments may be used.

For example, in FIG. 4, the operation terminal includes a control unit, a command transmission unit, an information transmission unit, an information reception unit, an information storage unit, and an edit screen display unit, but is not limited to this configuration. The control unit and the command transmission unit may be a single functional block. Alternatively, the information transmission unit and the information reception unit may be a single functional block.
The functional block can be variously changed as necessary as long as it does not contradict, and the above block configuration is arbitrary. In other words, the functional blocks described in the first to fifth embodiments may be distributed and arranged in the operation terminal, the display terminal, and the setting management device within a consistent range.

As mentioned above, although embodiment of this invention was described, you may implement in combination of 2 or more among these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined.
The above-described embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applied products, and uses. Can be changed.

1 display device, 2 display terminal, 10 multi-screen display device, 30, 31, 32, 33 operation terminal, 40, 41, 42, 43 setting management device, 50, 51, 52, 53 input device, 61, 62 operation terminal (With setting management function), 71, 72 display terminal (with setting management function), 81, 82, 83, 84 operation information transmission unit, 211 command reception unit, 212 display control unit, 213 information storage unit, 214 information reception unit 217 Timekeeping processing unit, 218 Time acquisition unit, 311 Control unit, 312 Command transmission unit, 313 Information transmission unit, 314 Information reception unit, 315 Information storage unit, 316 Editing screen display unit, 317 Timekeeping processing unit, 318 Time acquisition unit 411 Command monitoring unit 412 Main terminal information receiving unit 413 Information distribution unit 414 Information receiving unit 4 5 Information storage unit, 416 switching unit, 417 timing processing unit, 418 time acquisition unit, 419 management control unit, 500, 501, 502, 503 multi-screen display system, 601 system setting information, 602 real-time information, 603 environment setting information, 700 network, 901 arithmetic device, 902 external storage device, 903 main storage device, 904 communication device, 905 input / output device.

Claims (16)

In a screen display system that includes a plurality of control devices, operation devices, and management devices each having a display device, and that configures one screen by the plurality of display devices,
The management device
A management device storage unit that stores setting information including responsible area information indicating the position of the display device on the screen;
An information distribution unit that distributes the setting information to each of the plurality of control devices;
The operating device is:
A display request including display image information indicating a display image to be displayed on the screen, and display area information indicating a display image area for displaying the display image among display areas of the screen, wherein the display image of the screen A command generation unit that transmits a display request for displaying the display image in an area to each of the plurality of control devices;
Each of the plurality of control devices is
A control device storage unit that stores the setting information distributed from the information distribution unit;
Based on the display request received from the command generation unit and the responsible area information included in the setting information, a responsible image to be displayed on the display device is generated from the display images, and the generated responsible image is displayed. A screen display system comprising: a display control unit configured to display on the display device. The command generator of the operating device is
The generated display request is transmitted to each of the plurality of control devices, and is transmitted to the management device,
The management device further includes:
The display request is received from the command generation unit, and the display image information and the display area information included in the received display request are stored in the setting information stored in the management device storage unit. With an information update section,
The information distribution unit of the management device includes:
2. The setting information including the display image information and the display area information stored by the information update unit is distributed to each of the plurality of control devices and the operation device. Screen display system. The command generator of the operating device is
Sending the generated display request to the management device;
The management device further receives the display request from the command generation unit, and the display image information and the display area information included in the received display request are stored in the management device storage unit Provided with an information update unit that stores the setting information
The information distribution unit of the management device includes:
The display request is distributed to each of the plurality of control devices, and the setting information including the display image information and the display area information stored by the information update unit is transmitted to each of the plurality of control devices. To the operating device,
The screen display system according to claim 1, wherein the display control unit of the control device receives the display request from the information distribution unit. The operating device further includes:
An operating device storage unit that stores the setting information distributed from the information distribution unit;
Based on the display image information and the display area information included in the setting information stored by the controller storage unit, display image information indicating an image to be displayed on the screen and an image indicated by the display image information The screen display system according to claim 2, further comprising an input screen display unit that displays an input screen that accepts an input with a display area to be displayed. The operating device further includes:
An input unit for receiving an input of a change instruction for changing the setting information;
Based on the change instruction received by the input unit, a change unit that changes the setting information stored by the controller storage unit;
An operating device transmission unit that transmits the setting information changed by the changing unit to the management device as changed setting information;
The information update unit of the management device includes:
Receiving the changed setting information from the operating device transmission unit, and updating the setting information based on the received changed setting information;
The information distribution unit of the management device includes:
The screen display system according to claim 4, wherein the setting information updated by the information updating unit is distributed to each of the plurality of control devices and the operation device. The information distribution unit of the management device includes:
6. The screen display system according to claim 1, wherein the setting information is multicast-distributed periodically. The command generator of the operating device is
7. The screen display system according to claim 1, wherein the display request is distributed by multicast. The screen display system includes at least two management devices,
The management device storage unit stores, in the setting information, priority information for setting a priority order of each of the at least two management devices.
The management device further includes:
8. An information receiving unit that receives the setting information distributed from the information distribution unit of another management device and stores the received setting information in the management device storage unit. A screen display system according to any one of the above. The management device further includes:
The priority information included in the setting information stored in the management device storage unit is acquired, the priority order is determined by a processing device based on the acquired priority information, and the determined priority order is not highest The screen display system according to claim 8, further comprising a switching unit that stops the execution of the information distribution unit and operates the information reception unit. The management device storage unit stores, in the setting information, main management device information that identifies the management device with the highest priority among the at least two management devices.
Upon receiving the setting information distributed from the information distribution unit of the management device, the terminal information indicating the state of the display device, the operation device, or the management device is acquired, and the acquired terminal information is received. The screen display system according to claim 9, further comprising an operation information transmission unit that transmits to the management device identified by the main management device information included in the setting information. The management device further includes:
It has a time acquisition unit that acquires the current time,
The information distribution unit of the management device includes:
Based on the current time acquired by the time acquisition unit, set an update time for updating the setting information, distribute the set update time and the setting information,
The command generator of the operating device is
Based on the current time acquired by the time acquisition unit, set a display time for displaying the display image on the display device, transmit the set display time and the display request,
The operating device further includes:
An operation device control unit that updates the setting information at the update time distributed from the information distribution unit of the management device;
Each of the plurality of control devices further includes:
11. The screen according to claim 1, further comprising a control device control unit that displays the display image on the display device at the display time transmitted from the command generation unit of the operation device. Display system. In a screen display system that includes a plurality of control devices each having a display device and an operation device, and that configures one screen by the plurality of display devices,
The operating device is:
An operating device storage unit that stores setting information including responsible area information indicating the position of the display device on the screen;
An information delivery unit for delivering the setting information to each of the plurality of control devices;
A display request including display image information indicating a display image to be displayed on the screen, and display area information indicating a display image area for displaying the display image among display areas of the screen, wherein the display image of the screen A command generation unit that transmits a display request for displaying the display image in an area to each of the plurality of control devices;
Each of the plurality of control devices is
A control device storage unit that stores the setting information distributed from the information distribution unit;
Based on the display request received from the command generation unit and the responsible area information included in the setting information, a responsible image to be displayed on the display device is generated from the display images, and the generated responsible image is displayed. A screen display system comprising: a display control unit configured to display on the display device. In a screen display system that includes a plurality of control devices each having a display device and an operation device, and that configures one screen by the plurality of display devices,
Each of the plurality of control devices is
A display device storage unit that stores setting information including responsible area information indicating the position of the display device on the screen;
An information distribution unit that distributes the setting information to each of the plurality of control devices;
The operating device is:
A display request including display image information indicating a display image to be displayed on the screen, and display area information indicating a display image area for displaying the display image among display areas of the screen, wherein the display image of the screen A command generation unit that transmits a display request for displaying the display image in an area to each of the plurality of control devices;
Each of the plurality of control devices further includes:
A control device storage unit that stores the setting information distributed from the information distribution unit;
Based on the display request received from the command generation unit and the responsible area information included in the setting information, a responsible image to be displayed on the display device is generated from the display images, and the generated responsible image is displayed. A screen display system comprising: a display control unit configured to display on the display device. In a screen display system comprising a plurality of control devices each having a display device and an operation device, the management device comprising a screen display system comprising one screen by the plurality of display devices,
Setting information including an area for storing display image information indicating a display image to be displayed on the screen and display area information indicating an image display area in which the display image is displayed among the display areas of the screen is stored in a storage device. A management device storage unit,
Information update for receiving a display request including the display image information and the display area information from the operation device, and updating the setting information stored in the management device storage unit based on the received display request And
An information distribution unit that distributes the setting information including the display image information and the display area information updated by the information update unit to each of the plurality of control devices and the operation device. Management device. A screen display system that includes a plurality of control devices each having a display device, an operation device, and a management device, and that configures one screen by the plurality of display devices. In a screen display method of a screen display system comprising a management device storage unit that stores setting information including responsible area information indicating the position of the display device,
An information distribution step in which the control device distributes the setting information to each of the plurality of control devices;
The display device includes a display request including display image information indicating a display image displayed on the screen, and display area information indicating an image display area for displaying the display image among display areas of the screen, Generating a display request for displaying the display image in the image display area, and transmitting the generated display request to each of the plurality of control devices;
A control device storage step in which each control device of the plurality of control devices stores the setting information distributed by the information distribution step;
Each control device of the plurality of control devices receives the display request transmitted by the command generation step, and based on the received display request and the assigned area information included in the setting information, the display A screen display method comprising: a display control step of generating an assigned image to be displayed on the display device among images and displaying the generated assigned image on the display device. A management device provided in a screen display system that includes a plurality of control devices each having a display device and an operation device, and that forms one screen by the plurality of display devices, and shows a display image to be displayed on the screen In a program for a management device including a management device storage unit that stores setting information including a region for storing display image information and display region information indicating a display image region in which the display image is displayed among the display regions of the screen. ,
Information update for receiving a display request including the display image information and the display area information from the operation device, and updating the setting information stored in the management device storage unit based on the received display request Processing,
An information distribution step of distributing the setting information including the display image information and the display area information updated by the information update process to each of the plurality of control devices and the operation device is the management A program that is executed by a device.

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