KR100296769B1 - Educational video and audio transmission system with twin monitor function - Google Patents

Abstract

The present invention relates to an educational video and audio transmission system having a twin monitor function used in a general school or other educational institution,

Conventionally, in order to watch the contents of the instructor while training, the screen currently being printed on the monitor is removed, and the screen is displayed on the screen of the instructor's computer. Since the curriculum is very cumbersome, the learning efficiency is very low, and there is a problem in that the learning efficiency is very low. Also, when the instructor monitors each student's practice status, the video output from the student's computer must be displayed on his monitor screen. The work also has been troublesome.

Therefore, the present invention for solving the above problems is to install a separate twin monitor on the computer to be used by the instructor and the learner, respectively, and the output image of the computer operated by the instructor is displayed on the twin monitor used by the learner It is possible to configure the switching means to allow a large number of students to learn while watching the training contents operated by the instructor through the twin monitor, and to improve the student's learning achievement, the educational video and audio transmission system with the twin monitor function. It is about.

Description

Educational video and audio transmission system with twin monitor function

The present invention relates to an educational video and audio transmission system having a twin monitor function used in a general school or other educational institution, and in particular, a separate twin monitor is further installed on a computer intended for use by an instructor and a student. The student's learning achievement is achieved by configuring the switching means that the output image of the computer to be operated is displayed on the twin monitor used by the learners so that the learners can learn the contents of the instructor's operation through the twin monitor. The present invention relates to an educational video and audio transmission system having a twin monitor function.

In modern times, the development of computer technology has provided a computer-based education system, which breaks the traditional blackboard or whiteboard lecture and sends it directly to the student's monitor using a superimposed copyboard. By making it possible to see through the board, the blackboard in front of the student or the small letters written on the board will be hidden so that the discomfort of the student sitting in the back of the classroom can be improved. So that is one system.

1 is a view illustrating a conventional educational video and audio transmission system.

Instructor computer PC1 and a plurality of student computers PC2 to PCn are provided, and each computer PC1 to PCn has video and audio signals transmitted and received via a bus Bus. Are connected to terminals T1 to Tn, and video and audio signals output from the instructor computer PC1 can be normally transmitted to the respective student computers PC2 to PCn. The bridge B for relaying is provided, and each computer PC1-PCn is connected with the image display monitors M1-Mn.

In addition, the instructor and the student can transmit and receive each other using a headset not shown.

The conventional educational video and audio transmission system configured as described above,

When training using a computer is started, the output of the computer PC1 operated by the instructor is output through the monitor M1 connected to the computer PC1, and the outputs of the computers PC2 to PCn operated by each student are outputted. It is output through the monitors M2 to Mn connected to the computers PC2 to PCn.

If the student who wants to watch the instructor's contents during the education is made with a separate key operation, the video output from the instructor's computer (PC1) is displayed through the terminals (T1 to Tn) and the bridge (B). As it is output on the screen of Mn), the student can learn while watching the contents of the instructor through his monitor.

As described above, when the contents of the instructor's education are output on the student's monitor, the images output from the student computers (PC2 to PCn) are not output to the corresponding monitor. When the key is pressed, the image output from the own computer is displayed again on the student monitors M2 to Mn.

In other words, when a student practices training while operating his computer, he / she will watch the training contents of the instructor output through his monitor and then operate his computer again. .

However, in order to watch the contents of the instructor while training, the screen currently being displayed on his monitor is removed, and the screen shows that the contents of the instructor's computer output are displayed on the screen. Because the training process was very cumbersome, the learning process was very troublesome, and there was a problem that the learning efficiency was greatly reduced. Also, when the instructor monitors each student's practice status, the image output from the student's computer must be displayed through his monitor screen. Therefore, the work was also troublesome.

In addition, in order to correct the key input state of the student while the instructor grasps the learning state of the student, the learning efficiency is deteriorated because the instructor must go to the seat of the student and correct the key input.

Therefore, the present invention for solving the above problems is to install a separate twin monitor on the computer to be used by the instructor and the learner, respectively, and the output image of the computer operated by the instructor is displayed on the twin monitor used by the learner A video monitor and a video transmission system have a twin monitor function that enables students to learn while watching the contents of the instructor's training through twin monitors. For the purpose of providing it.

1 is a block diagram showing a conventional video and audio transmission system.

2 is a block diagram showing a video and audio transmission system of the present invention.

Figure 3 is a circuit diagram showing the inside of the terminal applied to the present invention.

4 shows a switch for controlling a keyboard and a mouse signal of a computer

drawing.

5 is a table showing the operation of each switch for each operation mode in the present invention.

※ Explanation of code for main part of drawing

PC: Computer

T: Terminal

M: main monitor

TM: Twin Monitor

SW: switch

A: Amplifier

C: control unit

Features of the present invention for achieving the above object,

A plurality of computers (PC1 to PCn) and monitors (M1 to Mn) intended to be used by the instructor or the students are provided, and images and audio signals transmitted from other computers are supplied to a connected computer, and images output from the connected computer. And a plurality of terminals (T1 to Tn) for outputting an audio signal to another computer, and a divider (B) for relaying data between the terminals to facilitate the data transmission.

It is installed separately next to each computer, and additionally installs a plurality of twin monitors (TM1 to TMn) for displaying images transmitted from other computers.

In each terminal T1 to Tn,

A first switch SW1 for switching an external image signal input through a data line or an output image of a connected computer, an amplifier A for amplifying the output image of the first switch SW1, and an on / off switching operation And a second switch SW2 for transmitting the output image of the amplifier A to another computer through a data line, and an on / off switching operation to supply the output image of the amplifier A to the twin monitor TM. A third switch SW3, a fourth switch SW4 for supplying an output image of a computer connected through on / off switching operation or an image input through the first switch SW1 to the main monitor M; The control unit C is further configured to control the switching operation of the first to fourth switches SW1 to SW4 according to the operation mode selection so that the function of the twin monitor is normally performed.

Further, a fifth switch (SW5) for switching a keyboard signal and a mouse signal externally inputted through a signal or a control line generated from a keyboard and a mouse connected to the computer to each computer, and transferring the fifth switch SW5 to the corresponding computer. The fifth switch SW5 may be switched by the control of the control unit C of the terminal operating by a control signal transmitted from a computer used by an instructor.

The same components as in the prior art are denoted by the same reference numerals to avoid repeated explanation.

The operation of the present invention configured as described above will be described with reference to FIGS. 2 to 5 as follows.

In the present invention, since the switching means as shown in FIG. 3 installed in each of the terminals T1 to Tn is an important component, the operation of the switching means will be described for each operation mode.

◆ first mode ◆

The first mode is a state in which an image output from each computer PC is output to the twin monitor TM, and the control unit C causes the first switch SW1 to be connected to the computer side terminal H. The second and fourth switches SW2 and SW4 are turned off and the third switch SW3 is turned on.

In this way, the image output from the computer PC is supplied to the amplifier A through the first switch SW1, amplified, and then supplied to the twin monitor TM through the third switch SW3. The image output from the PC) is output on the twin monitor TM, and the main monitor M is turned off.

◆ second mode ◆

In the second mode, the twin monitor TM outputs an image output from another computer PC through the data line. The control unit C causes the first switch SW1 to switch to the data line side terminal L. FIG. The second and fourth switches SW2 and SW4 are turned off and the third switch SW3 is turned on.

In this way, an image signal of another computer transmitted through the data line is supplied to the amplifier A through the first switch SW1, amplified, and then supplied to the twin monitor TM through the third switch SW3. The image output from the computer is displayed on the twin monitor TM, and the main monitor M is turned off.

In other words, the second mode is used when all students only see the contents of the instructor's education, and the twin monitor (TM2) in which the image output from the instructor's computer (PC1) is installed between each student's computers (PC2 to PCn). By outputting through -TMn, students can watch the contents of the instructor's education through the twin monitors instead of the main monitors M2-Mn.

◆ third mode ◆

The third mode is for outputting the image output from the computer PC to the main monitor or twin monitor of another computer. The control unit C allows the first switch SW1 to be connected to the computer side terminal H. The third and fourth switches SW3 and SW4 are turned off, and the second switch SW2 is turned on.

In this way, the image output from the computer PC is supplied to the amplifier A through the first switch SW1 and amplified, and is then transmitted to the data line through the second switch SW2, thereby maintaining the main of another computer. It is displayed on the monitor or twin monitor.

That is, in the third mode, when the instructor manipulates his or her computer PC1 and wants to show students the image corresponding to the operation or when the instructor wants to see the operation state of each computer (PC2 to PCn) directly. In this mode, the image output from the instructor's computer PC1 is output to the main monitors M2 to Mn or the twin monitors TM2 to TMn of each student through the data line. It is output through the instructor's main monitor (M1) or twin monitor (TM1).

◆ fourth mode ◆

The fourth mode is a mode in which an image output from the computer PC is output through the main monitor M connected to the computer PC. The control unit C has a first switch SW1 having a data line terminal L. FIG. And the second and third switches SW2 and SW3 are turned off and the fourth switch SW4 is turned on.

In this way, the image output from the computer PC is supplied to the main monitor M through the fourth switch SW4, and the screen is output. In this case, the twin monitor TM is in an off state.

That is, the fourth mode is an operation mode used when an instructor or a student wants to view an image output from his computers PC1 to PCn through the main monitors M1 to Mn without using the twin monitor.

◆ fifth mode ◆

The fifth mode is a mode in which an image output from a computer PC is output on a main monitor M, and an output image of another computer transmitted through a data line is output on a twin computer TM. C) controls the first switch SW1 to be connected to the data line side terminal L, the third and fourth switches SW3 and SW4 are on, and the second switch SW2 is off.

In this way, the image output from the computer PC is displayed on the main monitor M through the fourth switch SW4, and the output image of another computer input through the data line is output via the first switch SW1. After being supplied to the amplifier A and amplified, it is supplied to the twin monitor TM through the third switch SW3 and output on the screen of the twin monitor TM.

That is, in the fifth mode, the student outputs images output from his / her own computers PC2 to PCn to the main monitors M2 to Mn, and the images output from the instructor's computer PC1 are twin computers TM2 to TMn. It is used when you want to practice in parallel with the training while watching the contents of the instructor in real time, and the instructor watches the video output from his computer PC1 through the main monitor M1. This is a very important mode of operation used to check a student's computer output on a twin monitor (TM1).

◆ ◆ sixth mode

The sixth mode is an operation mode for outputting the image output from the own computer (PC) on the main monitor (M) and simultaneously outputting it to the main monitor or twin monitor of another computer transmitting through a data line. (C) controls the first switch SW1 to be connected to the computer side terminal H, the second and fourth switches SW2 and SW4 on, and the third switch SW3 to be off.

In this way, the image output from the computer PC is output to the main monitor M through the fourth switch SW4 and is supplied to the amplifier A through the first switch SW1 and amplified, and then the second switch. It is sent to the data line via (SW2) and output on the main monitor or twin monitor connected to another computer.

That is, in the sixth mode, the instructor wants to output the image output from his computer PC1 to the main monitor M1 and to the students' main monitors M2 to Mn or twin monitors TM2 to TMn. Is a very important mode of operation used.

As described above, when using the first to sixth modes in which the present invention can be implemented, the instructor or the student may output the image output from his computer only to the main monitor or the twin monitor, or output from his computer. You can have the video output to the main monitor and the video output from another computer to your own twin monitor, and the video output from your computer is output to the main monitor and transmitted through the data line and connected to another computer. It is possible to implement various functions such as to be outputted as is to significantly improve the learning efficiency.

On the other hand, in the present invention, the instructor can control the keyboard and mouse of the students from a long distance.

That is, when the instructor finds a wrong part while watching the video output from the student's computer through his monitor and wants to correct it, he inputs a specific key to the control unit C of the corresponding terminal T. When the control signal is output, the control unit C switches the fifth switch SW5 installed in the computer PC to the control line side terminal L according to the control signal input through the control line. When the instructor operates his or her own keyboard or mouse, the operation signal is transmitted through the control line and supplied to the corresponding computer (PC) through the fifth switch SW5, so that the instructor can remotely connect the student's computer (PC). Will be able to operate.

As described above, in the present invention, a separate twin monitor is further installed on a computer that is used by the instructor and the learners, and the switching means operates so that the output image of the computer operated by the instructor is displayed on the twin monitor used by the learners. It is an educational video and audio transmission system that has a twin monitor function to improve the student's learning achievement by allowing a plurality of students to learn while watching the teaching contents manipulated by the instructor through a twin monitor.

Claims (2)

A plurality of computers (PC1 to PCn) and monitors (M1 to Mn) intended to be used by the instructor or the students are provided, and images and audio signals transmitted from other computers are supplied to a connected computer, and images output from the connected computer. And a plurality of terminals (T1 to Tn) for outputting an audio signal to another computer, and a divider (B) for relaying data between the terminals to facilitate the data transmission. It is installed separately next to each computer, and additionally installs a plurality of twin monitors (TM1 to TMn) for displaying images transmitted from other computers. In each terminal T1 to Tn, A first switch SW1 for switching an external image signal input through a data line or an output image of a connected computer, an amplifier A for amplifying the output image of the first switch SW1, and an on / off switching operation And a second switch SW2 for transmitting the output image of the amplifier A to another computer through a data line, and an on / off switching operation to supply the output image of the amplifier A to the twin monitor TM. A third switch SW3, a fourth switch SW4 for supplying an output image of a computer connected through on / off switching operation or an image input through the first switch SW1 to the main monitor M; The control unit (C) is further configured to control the switching operation of the first to fourth switches SW1 to SW4 so that the function of the twin monitor is normally performed according to the operation mode selection. Having educational video. Voice transmission system. The method of claim 1, Further installing a fifth switch (SW5) in each of the computers to switch the keyboard signal and the mouse signal externally transmitted through the signal or control line generated from the keyboard and the mouse connected to the computer and transfer to the corresponding computer. The fifth switch SW5 is an educational image having a twin monitor function, wherein the fifth switch SW5 is switched by a control of a control unit C of a terminal operated by a control signal transmitted from a computer used by an instructor. Transmission system.