JPH0248874Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an electronic multi-poster device that displays computer graphics images on a plurality of connected display devices.

[Prior Art] Conventionally, so-called multi-image display, in which a plurality of display devices are connected to display images for advertisements and the like, has been widely used. A CRT color display device is used as the display device,
Displays images sent from a VTR, video disk, computer, etc.

[Problem that the invention aims to solve] Conventionally, displaying a single image by combining multiple video signals required considerable expense and large amounts of money because it was difficult to synchronize devices such as VTRs and computers. An expensive device was required. For example, the system required an attached video disc player and synchronization controlled by a timer signal engraved on the video disc, or a custom electronic control system, making the system extremely expensive. Furthermore, even if computers that output video signals have built-in clocks, each computer has slightly different characteristics, so even if they can start at exactly the same time, it will take a long time. As the process progresses, the timing of displaying images will shift. Therefore, this also required a custom, expensive electronic control system to send control signals to the computer.

Therefore, this idea uses commercially available general-purpose equipment,
The present invention aims to provide an electronic multi-poster device that can display multi-images with inexpensive equipment.

[Means for Solving the Problems] The electronic multi-poster device of this invention consists of a computer, a display device, a television camera, a tape recorder, an audio signal distributor, and a control relay. computers, display devices,
and a television camera form a set, and there are multiple such sets.

The computer stores the graphics images and is connected to the display device via the control relay. The display device is equipped with a priority signal automatic selection circuit. A plurality of display devices are connected and display the graphics images. Additionally, a television camera is connected to each display device. The display device also displays images captured by a television camera.

The tape recorder receives the information from the computer.
The timing of switching between the RGB signal and the NTSC signal from the television camera is recorded as an audio signal.

An audio signal distributor is provided between the tape recorder and the computer. The audio signal distributor outputs audio signals from the tape recorder to each computer.

The control relay is composed of, for example, a transistor type non-contact relay, and controls the RGB signal output of the computer.

[Operation] Each display device reproduces an RGB signal from a computer connected to it or an NTSC signal from a television camera.

Switching from a computer image to a television camera image is performed in accordance with a switching signal. The switching signal is recorded in advance on the audio tape as a short audio signal of approximately constant frequency, for example, for one second, at a position corresponding to the switching timing. On the other hand, the computer stores the graphics images and output order to be output to the display device.

It is now assumed that each display device is displaying a graphic image from a computer. In this situation, when the time comes to switch the graphic image to the image from the TV camera,
The tape recorder sends a switching signal to each computer via a signal distributor. Upon receiving the switching signal, the computer issues a control signal to the control relay to stop outputting the RGB signal. The control relay is activated by a control signal from the computer, and graphics video signal output from the computer is stopped.
At the same time, the display device's built-in priority signal automatic selection circuit activates to automatically detect signals from the TV camera.
Automatically switching to NTSC signals, each display device displays the image from the television camera.

[Embodiment] Fig. 1 and Fig. 2 show an example of this invention, in which Fig. 1 is a system conceptual diagram of an electronic multi-poster device, and Fig. 2 is a diagram showing the configuration of the device. As an example, a demonstration in the lobby of a large store is shown.

The electronic multi-poster device includes nine microcomputers 1a to 1i. In the storage devices 2 of the microcomputers 1a to 1i, characters or figures for advertisements and announcements are created in advance and stored as data.

RGB signal input terminals 6 of CRT color display devices 5a to 5i are connected to RGB signal output terminals 3 of each microcomputer 1a to 1i, respectively. 9 color display devices 5a
5i are arranged in 3 rows and 3 columns so as to be adjacent to each other.

Each of the above color display devices 5a to 5i
Color television cameras 9a to 9i are connected to the NTSC signal input terminal 7, respectively. The color television cameras 9a to 9i take images of the product 15 so that nine color display devices 5a to 5i form one screen. Each color display device 5a to 5i includes an RGB signal gate 52 and
A priority signal automatic selection circuit 51 that opens and closes an NTSC signal gate 53 is provided.

Further, a tape recorder 10 is connected to the microcomputers 1a to 1i via an audio signal distributor 11. The tape recorder 10 is a normal audio tape recorder and plays back a tape on which switching signals are recorded. The output side of the audio signal distributor 11 is branched and connected to each of the microcomputers 1a to 1i.

As shown in FIG. 3, control relays 8a-8i are provided between the microcomputers 1a-1i and the color display devices 5a-5i. Control relays 8a to 8i are transistor type non-contact relays, and are opened and closed by control signals from microcomputers 1a to 1i.

Next, display of an image by the apparatus configured as above will be explained.

Now, the color display devices 5a to 5 in the upper row
The color display device 5e in the middle row has an illustration and the word “ha”, and the color display devices 5g to 5i in the bottom row have “Marukoshi-ya” on it.
Assume that the following display is displayed.
Further, the priority signal automatic selection circuit 51 of the color display devices 5a to 5i is controlled by the microcomputer 1.
It is set to preferentially select the RGB signals from a to 1i.

Each color display device 5a to 5i
Among the computers 1a to 1i connected to the microcomputer 1a to 1i, the microcomputer 1a is "O", the microcomputer 1b is "Medium", the microcomputer 1c is "Original", and so on. , each containing a fragment of a letter or figure for one word.

The basic program of each of the microcomputers 1a to 1i includes a program instruction to "output an image when the reserved audio frequency arrives."

In order to synchronize and drive these large groups of computers 1a to 1i, a switching signal, which has been recorded in advance and timed according to the performance intention, is emitted from the tape recorder 10 for about one second. This one switching signal is multiplied by the necessary number of signals by the audio signal distributor 11, distributed equally to all the microcomputers 1a to 1i, and inputted to their audio signal input terminals 4.

Then, each microcomputer 1a
1i receive the switching signal, so they send the first image data stored in each of them to the color display devices 5a to 5i via the bus line A.
Each of the microcomputers 1a to 1i has its own unique drawing speed, and since it only displays one simple image, the time error in the completion of the drawing is suppressed to such an extent that it does not pose a problem at all in practice. It will be done.

The switching signal causes the screen to immediately display the image ``Marukoshi-ya for mid-year gifts''.

When the next switching signal is issued from the tape recorder 10 after a predetermined period of time has elapsed, each microcomputer 1a-1i retrieves the second image of data from its storage device 2 and displays it on the color display device 5a-5i. send to

Since a new switching signal is inputted to all the microcomputers 1a to 1i again, no synchronization deviation occurs between the microcomputers over time.

Assume that when each of the microcomputers 1a to 1i finishes sending the second sheet of data, the display on the electronic multi-poster changes all at once to a ``flower pattern''.

When the nine images are aligned in the same pattern, the microcomputers 1a-1i output pre-programmed control signals to the control relays 8a-8i. Control relays 8a-8i are operated by control signals from microcomputers 1a-1i to switch between computer graphics images and video signals from color television cameras 9a-9i. That is, when the control relays 8a to 8i operate, the microcomputers 1a to 1i
RGB signals are bypassed via bus line B.
Now you can connect to color display monitors 5a to 5i.
RGB signal is interrupted. Then, the priority signal automatic selection circuit 51 built in the color display devices 5a to 5i searches for the next signal and works automatically to catch the NTSC signals from the color television cameras 9a to 9i, and this time the NTSC signal is The gate 53 was closed and the color television camera 9a was transmitting images.
-9i are displayed all at once on color display monitors 5a-5i. Color television cameras 9a to 9i send a relay screen of product 15 from a studio in the store.

In this example, nine color television cameras 9a to 9i are used.
Since a single product is photographed by linking multiple images, a huge product can be displayed on multiple screens.

Now, the bypassed computer 1a~
When the RGB signal of 1i receives the next synchronized operation command, it attempts to send separate images again to each of the color television monitors 5a to 5i.
This operation becomes a switching signal and the control relay 8 is turned on again.
~8i is activated to switch from bus line B to bus line A.

Since the priority signal RGB signal is received, the priority signal automatic selection circuit 51 of the color display monitors 5a to 5i is activated, and this time, the NTSC signal gate 53 connected to the color television cameras 9a to 9i is activated.
opens, and the RGB signal gate 52 closes. In this way, the multi-screen returns to the computer graphics image again.

Of course, various control signals can be applied to the control relays 8a to 8i, so it is possible to use only the middle column as the image captured by the color television cameras 9d to 9f, or to use only the central row as the color television camera 9e. You can freely create captured images depending on how you create the program.

[Effects of the invention] According to the device of this invention, it is not only possible to display a wide variety of notice texts and figures by combining the data stored in the computer, but also to display realistic camera images as appropriate. It is possible to easily express advanced multi-images by mixing the images.

Compared to conventional multi-screen displays that use a large amount of light such as multi-slides, the running costs are minimal, with only a small amount of electricity consumed during video input and output other than the electricity used by the TV monitor, and the tape recorder's auto-reverse mechanism. By using something like this, endless settings can be made, and advertisements and announcements can be run automatically and unattended for the required amount of time, and the social impact of this idea is extremely large.

Furthermore, in this invention, a tape recorder is combined with a simple distributor to distribute control signals, making it possible to synchronize and control even dozens of microcomputers.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show an example of this invention, Fig. 1 is a system conceptual diagram of an electronic multi-poster device, Fig. 2 is a device configuration diagram, and Fig.
The figure is a drawing explaining the connection relationship of control relays. 1a~1i...Microcomputer, 5a~
5i...Color display device, 8a to 8i...
...Control relay, 9a to 9i...Color television camera, 10...Tape recorder, 11...Audio signal distributor, 51...Priority signal automatic selection circuit.

Claims (1)

[Scope of utility model registration request] A device comprising a plurality of computers storing graphics images and a display device connected to each computer, and displaying the graphics image by connecting the plurality of display devices, the device having an automatic priority signal selection circuit. A television camera connected to each display device, a tape recorder that plays back a tape recording the timing of switching between the RGB signal from the computer and the NTSC signal from the television camera as an audio signal, and a connection between the tape recorder and the computer. 1. An electronic multi-poster device comprising: an audio signal distributor provided in the computer; and a control relay provided between the computer and the display device and actuated by a control signal from the computer based on the audio signal.