JPH1195731A - Image display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display system that can easily monitor display contents displayed on a display terminal equipment even in a separated place. SOLUTION: A video signal S1, or image information preserved in a large capacity memory 13 as an analog video signal by a D/A conversion part 18, is switched by a switch part 11 to be displayed on a display part 12 of a display terminal equipment 10. A control part 14 digitizes the output of the switch part 11 by an A/D conversion part 19 according to the procedure of a display information gain processing part 15b to preserve it in the large capacity memory 13. The control part 14 sets/controls a communication part 16 according to the procedure of a display information transmission processing part 15c to transmit display information preserved in the large capacity memory 13 to a server 50 through a LAN 30. The server 50 receives the display information transmitted from the display terminal equipment 10 by the communication part 56, and displays it on the display part 52 and monitor, the display contents of the display terminal equipment 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image display system capable of monitoring display contents of a display terminal for displaying image information at a remote place.

[0002]

2. Description of the Related Art In an image display system such as an electronic advertisement system, it is necessary to check the content of image information displayed on a display terminal installed at a distant place, and to monitor the update status of a displayed image. In such a case, conventionally, the display contents are checked by directly monitoring the display screen at the installation location of the display terminal. Therefore, there has been a problem that the time and place restrictions for monitoring are large and the burden of monitoring is large.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide an image display system capable of easily monitoring display contents displayed on a display terminal even at a remote place. Aim.

[0004]

A display terminal has a large-capacity memory for storing the same image information, a communication unit for transmitting and receiving data to and from an external device such as a LAN, and display information to be displayed on the display unit. A control unit for controlling the communication unit and the like, which is stored in a capacity memory, wherein the server is connected to the LAN or the like and communicates with the display terminal. By acquiring information and displaying the acquired information on a monitor provided in the server, the display content of the display terminal can be monitored from a remote place.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A display terminal for displaying image information on a display unit such as a CRT or PDP, a large-capacity memory for storing the image information, a communication unit for transmitting and receiving data to and from an external device via a LAN or the like, and the display unit A control unit for acquiring the image information to be displayed on the unit and storing the image information in the large-capacity memory and controlling the communication unit and the like. The display information stored in the large-capacity memory of the terminal is obtained and displayed on a monitor provided in the server for monitoring.

[0006] A real-time clock is provided in the display terminal, and the display information is acquired for a time set at a preset time with reference to the clock by the control unit, and is stored in the large-capacity memory.

[0007] The display terminal is provided with a time encoding unit for encoding a display time of the display information, and a display time code is added to the display information to be transmitted to the server for transmission.

[0008] A real-time clock is provided in the display terminal, and display information stored in the large-capacity memory is transmitted to the server at a preset time by referring to the clock by the control unit.

The control unit is provided with a real-time transmission unit, and the display information acquired from the display unit is transmitted to the server in real time.

[0010] The display information is transmitted from the display terminal to the server when requested by the server.

The display unit and the server are provided with image information compression / decompression functions such as MPEG.

The server is provided with a large-capacity memory for storing display information transmitted from the display terminal.

[0013] A plurality of display terminals are connected to the one server, and the display information is acquired by the same server by time division.

[0014]

FIG. 1 shows an image display system 1 according to the present invention.
It is an outline block diagram of an example. The external input video signal S1 and the like are switched by the switching unit 11 and displayed on the display unit 12 of the display terminal 10 formed of, for example, a CRT. Or,
The controller 14 converts the image information stored in the large-capacity memory 13 into an analog video signal by the D / A converter 18 according to the procedure of the display control processor 15a. The display can be switched to be displayed on the display unit 12. The control unit 14 digitizes the output of the switching unit 11 by the A / D conversion unit 19 according to the procedure of the display information acquisition processing unit 15b, and displays the output information on the display unit 12 as
It is stored in the large capacity memory 13. When displaying image information stored in the large-capacity memory 13 on the display unit 12, the displayed data in the large-capacity memory 13 can be used as display information by flag processing or the like. Further, the control unit 1
4 sets and controls the communication unit 16 according to the procedure of the display information transmission processing unit 15c, and transmits the display information stored in the large-capacity memory 13 to the server 50 via the LAN 30. In the server 50, the display information transmitted from the display terminal 10 is received by the communication unit 56, and the display information is displayed on the display unit 52.
Monitor the displayed contents of.

The display terminal 10 is provided with a clock 17, and the control unit 14 controls the clock 1 according to the procedure of the display information acquisition processing unit 15b.
7, display information to be displayed on the display unit 12 can be acquired at a preset time at a preset time and stored in the large-capacity memory 13. The display time of the obtained display information is coded by the control unit 14 and stored in the large-capacity memory 13 together with the display information. When the display information is transmitted to the server 50, the display time code of the display information is added and transmitted. It can also be done.

The control unit 17 includes a display information transmission processing unit 15c
According to the procedure described above, the display information and the like are transmitted from the display terminal 10 to the server at a preset time with reference to the clock 17. Alternatively, the data may be transmitted when requested by the server 50 according to a command from the operation unit 40 of the server. Further, the display information transmission processing unit 15c may be provided with a real-time transmission processing procedure so that the display information displayed on the display unit 12 is transmitted to the server 50 in real time.

An image information compression / decompression function such as MPEG is added to the display unit and the server to increase the transmission speed of display information transmitted via the LAN 30. The display information transmitted at a fixed time or the like is received by the control unit 54 of the server 50 via the communication unit 56, stored in the large-capacity memory 53, and displayed on the display unit 52 by a command from the operation unit 40 for monitoring. I do.
The LAN 30 has a plurality of display terminals 2 in addition to the display terminal 10.
0,... Are connected to each other so that the display information is acquired by the server 50 in a time-sharing manner.
, The display contents of a plurality of display terminals can be monitored.

[0018]

According to the present invention, a large-capacity memory for storing the same image information in a display terminal, a communication unit for transmitting / receiving data to / from the outside via a LAN or the like, and display information to be displayed on the display unit are acquired and stored in the large-capacity memory. A control unit that controls the communication unit and the like, and obtains the display information stored in a large-capacity memory of the display terminal by a server that communicates with the display terminal by connecting to the LAN or the like. By displaying the information on a monitor provided in the computer and monitoring the display contents of the display terminal from a remote place, maintenance of the display system and the like can be facilitated and performed reliably.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of an embodiment of an image display system according to the present invention.

[Explanation of symbols]

 S1, S2 Input video signal 10 Display terminal 11 Switching unit 12 Display unit 13 Large-capacity memory 14 Control unit 15a Display control processing unit 15b Display information acquisition processing unit 15c Display information transmission processing unit 16 Communication unit 20 Display terminal 30 LAN 40 Operation unit 50 server 52 display unit 53 large-capacity memory 54 control unit 56 communication unit

Claims (9)

[Claims] A display terminal for displaying image information on a display unit such as a CRT or PDP, a large-capacity memory for storing the image information, a communication unit for transmitting and receiving data to and from an external device such as a LAN, and the display unit. A control unit for acquiring the display information to be displayed and storing the display information in the large-capacity memory and controlling the communication unit and the like, and a server that communicates with the display terminal by connecting to the LAN or the like. An image display system configured to acquire the display information stored in a large-capacity memory, display the information on a monitor provided in a server, and monitor the image. 2. A real-time clock is provided in the display terminal, and the display information is obtained and stored in the large-capacity memory only for a time set at a preset time by referring to the clock by the control unit. The image display system according to claim 1, wherein: 3. A real-time clock is provided in the display terminal, and display information stored in the large-capacity memory is transmitted to the server at a preset time by referring to the clock by the control unit. The image display system according to claim 1, wherein: 4. The display terminal according to claim 1, wherein a time encoding unit for encoding a display time of the display information is provided, and a display time code is added to the display information to be transmitted to the server, and the display information is transmitted. The image display system according to claim 3. 5. The image display system according to claim 1, wherein a real-time transmission unit is provided in the control unit, and the display information acquired from the display unit is transmitted to the server in real time. . 6. The image display system according to claim 1, wherein the display information is transmitted from the display terminal to the server when requested by the server. 7. The image display system according to claim 1, wherein an image information compression / decompression function such as MPEG is added to the display unit and the server. 8. The server is provided with a large-capacity memory,
2. The image display system according to claim 1, wherein display information transmitted from said display terminal is stored. 9. The image display system according to claim 1, wherein a plurality of display terminals are connected to the one server, and the display information is acquired by the same server by time division.