JP2008286864A - Large image display system with emergency guide display function, and display unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system that displays evacuation guide information by an undamaged display device when a disaster such as fire and earthquake occurs so as to minimize human damage. <P>SOLUTION: The system includes: a large image display device 1 the display screen of which consists of a large number of display units 2; a display controller 3 attached to the large image display device, which distributes video information to each display unit on the basis of the externally input video information and controls the large image display device to display the externally input video information; and storage devices 6, 22 storing image information to be displayed in an emergency. In case of emergency, image information to be displayed in emergency stored in the storage device is displayed on at least one display unit of the large image display device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a large-sized image display system with an emergency guidance display function and a display unit having a function of displaying guidance such as guidance in an emergency such as an earthquake or a fire.

  In conventional evacuation guidance systems, evacuation guidance information is displayed on an information display device when operated by an information management device. Specifically, as shown in FIG. 13, a display management apparatus that manages display of guidance information and an information display apparatus that performs display are separated, and both are connected by a local line. The evacuation guidance system can display evacuation guidance and the like on the information display device by operating the display management device. (For example, see Patent Document 1 and Patent Document 2)

JP-A-4-255097 (FIG. 1 and its description) Japanese Patent Laid-Open No. 4-254888 (FIG. 1 and description thereof)

In the evacuation guidance system as shown in FIG. 13, the display management device that manages the display of the guidance information and the information display device that performs the display are connected by a local line and are installed at locations separated from each other.
Therefore, if a disaster such as an earthquake or fire occurs and the communication line in the middle (between the local modem of the display management device and the local modem of the information display device) is disconnected, the display illustrated in FIG. Since the video information to the signal line 11 to the unit 2 is cut as shown in FIG. 15, even if the display management device performs a display operation, communication with the information display device cannot be performed. There has been a problem that it is not possible to perform an emergency guidance by updating the normal display of the information display device.

  The present invention has been made to solve the above-described problems. Even when a communication line is cut off in an emergency such as an earthquake or a fire, or when the display management device fails, the display device alone is used. By detecting abnormalities and automatically displaying information such as evacuation guidance on the display device, when a disaster such as an earthquake or fire occurs, information on the evacuation guidance can be displayed on the display device that is not damaged. The purpose is to minimize human damage.

  A large-sized video display system with an emergency guidance display function according to the present invention is based on a large-sized video display device in which a display screen is constituted by a large number of display units, and video information attached to the large-sized video display device and inputted from the outside. A display control device that distributes video information to each of the display units and displays the video information input from the outside on the large-sized video display device, and a storage device that stores image information to be displayed in an emergency. The image information to be displayed in an emergency stored in the storage device is displayed on at least one display unit of the large video display device.

The display unit according to the present invention is a display unit that constitutes a part of a large-sized video display device and includes a display screen composed of display element groups, and includes a control circuit, a power source, and image information to be displayed in an emergency. An internal memory stored and a sensor for detecting an abnormal state are provided. When the sensor detects an abnormal state, the control circuit uses the power source as a power source to display an image to be displayed in an emergency based on image information stored in the internal memory. It is displayed on the display element group.

  The present invention relates to a large-sized video display device having a display screen composed of a large number of display units, and distributes the video information to each of the display units based on video information attached to the large-sized video display device and input from the outside. A display control device that displays video information input from the outside on the video display device, and a storage device that stores image information to be displayed in an emergency, and at least one display unit of the large video display device in an emergency, Since the image information to be displayed in the emergency stored in the storage device is displayed, communication with the information display device cannot be performed even if the display management device performs a display operation as in the conventional system. The problem that the display of the emergency display cannot be performed by updating the display at the time of normal display of the information display device is alleviated.

  Further, the present invention is a display unit that constitutes a part of a large-sized video display device and has a display screen composed of a display element group, and includes a control circuit, a power supply, and an internal memory that stores image information to be displayed in an emergency. And a sensor for detecting an abnormal state, and when the sensor detects an abnormal state, the control circuit uses the power supply as a power source to display an image to be displayed in an emergency based on image information stored in the internal memory. Therefore, image information to be displayed at the time of abnormality can be displayed only by a display unit that constitutes a part of a large video display device and has a display screen composed of display element groups.

Embodiment 1 FIG.
A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an external view of an example of a large video display system and a large video display system including the display control device, and FIG. 2 is a diagram illustrating an example of a system configuration of a function for performing emergency detection and storage of an emergency display image. An example of a block diagram in the large video display device, FIG. 4 is an external view of an example of a display unit constituting the large video display device, and FIG. 5 is an example displayed by the large video display device in a normal state. FIG. 6 is a diagram showing an example in which a large video display device displays a taxiway in an emergency such as a power failure, and FIG. 7 is an example in which a display unit with an emergency guidance display function is displaying in a normal state and a power failure. It is a figure shown in comparison with the example currently displayed in an emergency.

  In FIG. 1, a large-sized video display device 1 combines a number of display units 2 as shown in the large-sized video display block diagram of FIG. Configure the screen. The display control device 3 is attached so as to be close to or integrated with the large-sized video display device 1.

  The video displayed on the large video display screen of one screen is inputted with video information a from the outside, processed in the display control device 3, and converted into a signal for lighting the display unit 2 in the display control device 3, Display is performed when the light emitting element of the display unit 2 is turned on. Note that the thick lines in FIG. 3 are video information signal lines.

  In the first embodiment, as illustrated in FIG. 2, the display control device 3 is provided with an input of an abnormal signal b from the fire alarm device 20 and an emergency display button 21. An emergency display image storage device 22 such as a disk storing an image to be displayed is connected.

  Further, as illustrated in FIG. 4, the display unit 2 has a light emitting element group 41 formed by arranging a large number of light emitting elements 4 vertically and horizontally on the front surface thereof.

  Next, the operation will be described.

  Normally, as shown in the display example of the normal large video display device in FIG. 5, the large video display device 1 displays a video.

  When an abnormality such as a fire occurs, when the abnormality signal b from the fire alarm device 20 is input and the emergency display button 21 is pressed, the emergency large image display device display example of FIG. 6 and the emergency display of FIG. As shown in the time display unit display example, an emergency display image required in an emergency such as an evacuation guidance display registered in advance in the emergency display image storage device 22 can be displayed on the large-sized video display device 1.

  FIG. 6 shows, as an emergency display example, the fact that the large video display device 1 can be evacuated to the left by the two display units 2 at the left end and the two display units 2 at the right end that can be evacuated to the right. The display is 2ad2.

  FIG. 7 is a diagram illustrating a comparison between the normal display 2n and the emergency display 2ad2 in the display unit 2 at the right end. The second display unit 2 from the right in FIG. Displays a display 2n which is a part of the display image of FIG. 5 in a normal state, and displays a display 2ad2 which is a display image necessary in an emergency in an emergency. These display images are displayed on the light emitting element group 41 in FIG. 4 by the display circuit in the display unit 2 (display circuit 4c in FIG. 8 and others) based on the video information distributed from the display control device 3, Video information a from the outside is displayed during normal times, and display image information stored in the emergency display image storage device 22 is displayed during emergency.

  With these operations, when a disaster such as an earthquake or a fire occurs, the audience can evacuate safely by looking at the guidance for evacuation guidance displayed on the large-sized video display device 1.

Embodiment 2. FIG.
The second embodiment of the present invention will be described below with reference to FIGS. FIG. 8 is a block diagram showing an example of the internal configuration of a display unit with an emergency guidance display function that constitutes a large-sized video display device, and FIG. 9 shows a guide by detecting an emergency state such as a power failure by the display unit with an emergency guidance display function. It is a figure which shows the example of the process at the time of performing a display with a flowchart.

  In the first embodiment described above, the display unit 2 always performs display regardless of whether it is an emergency or not, using video information via a power supply line or a signal line that connects the display control device 3 and the large video display device. It was.

  However, when a disaster such as an earthquake or fire occurs, the display unit 2 displays the display unit 2 because the power supply line 10 and the signal line 11 are cut off or the power supply itself is cut off, as shown in FIG. It becomes impossible to do.

  Therefore, in the present embodiment, by using the display unit with emergency guidance display function 2ps, guidance display can be performed even when the power line 10 is cut off or a power failure occurs.

  That is, the display unit with emergency guidance display function 2ps stores therein an internal power supply 5 such as a battery and an image file for guidance display in order to supply power in the event of a power failure, as illustrated in FIG. For this purpose, an internal memory 6 such as a memory card as a storage device, a power source switch 7 for switching the power system, and a setting switch 8 for setting an image file to be displayed are provided.

The display unit with emergency guidance display function 2ps has a power failure detection signal line 12 in addition to the power line 10 and signal line 11 connected to the normal display unit 2 that is not the display unit with emergency guidance display function. It is connected. The power failure detection signal line 12 is directly connected to a power supply source, and a signal is supplied regardless of whether the large-sized video display device 1 is turned on or off. It is determined whether the display device 1 is turned off due to OFF or a power failure. A power supply monitoring unit to which power is supplied from the internal power supply 5 may be provided in the control circuit 2c so that a power failure is detected by the power supply monitoring unit.

  As shown in the flowchart of FIG. 9, if the emergency guidance display function-equipped display unit 2ps determines that a power failure is detected by the power failure detection signal line 12 (or the power supply monitoring unit) in step S1, the power switch 7 operates in step S2. Then, the power source is switched to the internal power source 5 such as a battery.

  Next, in step S3, an image to be displayed corresponding to the emergency state is selected by the setting switch 8 and read from the internal memory 6 such as a memory card.

  Finally, in step S4, the light emitting element 4 is turned on according to the image read in step S3.

With these operations, even when the power line 10 or the signal line 11 is disconnected due to a power failure or an emergency state as shown in FIG. 15, the large-sized video display device 1 can perform the minimum display necessary in an emergency. is there.
Embodiment 3 FIG.

  Hereinafter, Embodiment 3 of the present invention is shown in a block diagram showing an example of an internal configuration of a display unit with an emergency guidance display function when a fuel cell is used as a power source in the display unit with an emergency guidance display function. 10 will be described.

  In the second embodiment, the battery is illustrated as an example of the internal power supply 5. However, since the driving time is limited in the battery, the third embodiment has an emergency guidance display function as illustrated in FIG. The internal power supply 5 of the display unit 2ps is a fuel cell, and it can be operated for a long time by periodically adding fuel stored in the fuel cell through the fuel replenishment port 13.

Embodiment 4 FIG.
In the second and third embodiments described above, a power failure is automatically detected and guidance display is performed. However, as illustrated in FIG. 11, abnormalities such as vibration, smoke, and temperature are present. The detection sensor 9 for detecting the state is additionally installed in the above-described second and third embodiments and provided in the display unit 2ps with an emergency guidance display function, so that an abnormal state can be detected even by a factor other than a power failure. It is possible. For example, even when the large-sized video display device 1 is damaged due to a disaster such as an earthquake disaster or a fire, the display unit with an emergency guidance display function 2ps can display guidance during an abnormality. In that sense, it is better to provide a plurality of display units 2ps with an emergency guidance display function in the large-sized video display device 1.

Embodiment 5. FIG.
The first embodiment described above is an example in which display is performed in a normal state incorporated in the large-sized video display device 1, but the battery 5 is built in the display unit with an emergency guidance display function 2ps. Therefore, it is possible to display even when the power supply line 10, the signal line 11, and the power failure detection signal line 12 are disconnected from the large video display device 1.

Fig. 12 shows an example in which the display unit with emergency guidance display function 2ps is placed on the ground as a single unit. In the event of a disaster, the installation location can be changed as needed. Unit 2ps can be used effectively.

  In addition, in each figure of FIGS. 1-15, the same code | symbol shows the same or an equivalent part.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of this invention, and is an external view of the example of the large sized image display system provided with the large sized image display apparatus and its display control apparatus. It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the example of the system configuration | structure of the function which performs emergency detection and emergency display image storage. It is a figure which shows Embodiment 1 of this invention, and is an example of the block diagram in a large sized image display apparatus. It is a figure which shows Embodiment 1 of this invention, and is an external view of the example of the display unit which comprises a large sized image display apparatus. It is a figure which shows Embodiment 1 of this invention, and is the example currently displayed on the large sized image display apparatus. It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the example which the large-sized video display apparatus displays a taxiway at the time of emergency, such as a power failure. It is a figure which shows Embodiment 1 of this invention, and is a figure which compares and shows the example which the display unit with an emergency guidance display function is displaying at the time of normal, and the example which is displayed at the time of emergency, such as a power failure. It is a figure which shows Embodiment 2 of this invention, and is a block diagram which shows the example of the internal structure of the display unit with an emergency guidance display function which comprises a large sized image display apparatus. It is a figure which shows Embodiment 2 of this invention, and is a figure which shows the example of a process when a display unit with an emergency guidance display function detects emergency states, such as a power failure, and performs guidance display. It is a figure which shows Embodiment 3 of this invention, and is a block diagram which shows the example of the internal structure of the display unit with an emergency guidance display function at the time of using a fuel cell as a power supply in the display unit with an emergency guidance display function. . It is a figure which shows Embodiment 4 of this invention, and is a block diagram which shows the example of the internal structure of the display unit with an emergency guidance display function which has a sensor which detects an emergency state. It is a figure which shows Embodiment 5 of this invention, and is a block diagram which shows the example of the internal structure of the portable display unit with an emergency guidance display function which has an internal power supply. It is the figure which showed the Example of patent document 1 which is a prior art with the block diagram. It is a block diagram which shows the internal structure of the display unit which comprises the conventional large sized image display apparatus. It is a figure which shows the example when the power source line and signal line which are input into a display unit are cut | disconnected by the emergency state, such as the conventional large-sized video display apparatus and a fire, an earthquake.

Explanation of symbols

1 Large video display device,
2 display units,
2ps display unit with emergency information display function,
2ad1, 2ad2 error display,
2n Normal display,
2c control circuit,
3 display control device,
4 light emitting elements,
41 light emitting element group,
5 Internal power supplies such as batteries and fuel cells,
6 Internal memory such as memory cards
7 Power switch
8 Setting switch,
9 Abnormal state detection sensor,
10 Power line,
11 signal lines,
12 Power failure detection signal line,
13 Refueling port,
20 Fire alarm device,
21 Emergency display button,
22 Storage devices such as emergency display image storage disks
a Video signal,
b Abnormal signal.

Claims (6)

  A large-sized video display device having a display screen composed of a large number of display units, and distributing video information to each of the display units based on video information attached to the large-sized video display device and input from the outside. A display control device for displaying video information input from the outside, and a storage device storing image information to be displayed in an emergency; and at least one display unit of the large video display device in an emergency, the storage device A large-sized video display system with an emergency guidance display function for displaying the stored image information to be displayed in the emergency.   2. The large-sized video display system with an emergency guidance display function according to claim 1, wherein the display unit for displaying image information to be displayed in an emergency has a power source therein, and the emergency power source is used as a power source when the power failure occurs. A large-sized video display system with an emergency information display function that displays image information that should be displayed at times.   3. The large-sized video display system with an emergency guidance display function according to claim 2, wherein the storage device is provided in a display unit for displaying image information to be displayed in the emergency. Large video display system with display function.   4. A large-sized video display system with an emergency guidance display function according to claim 2, wherein a sensor for detecting an abnormal state is provided in a display unit for displaying image information to be displayed in the emergency. A large-sized video display system with an emergency information display function.   5. The large-sized video display system with an emergency guidance display function according to claim 4, wherein a display unit for displaying image information to be displayed in the emergency is removable from the large-sized video display device. Large video display system with guidance display function.   A display unit that is a part of a large video display device and has a display screen composed of display elements. The control circuit, power supply, internal memory that stores image information to be displayed in an emergency, and detection of abnormal conditions A display unit that displays an image to be displayed in an emergency based on image information stored in the internal memory by the control circuit using the power source as a power source when the sensor detects an abnormal state.

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