KR20000011962A - Educational multi-media system - Google Patents

Abstract

PURPOSE: An educational multimedia system is provided to integrally connect many video/audio equipments for outputting video signals and audio signals of different video formats from each other into one unit and to repeat simultaneously by multiple image/sound output equipments. CONSTITUTION: The educational multimedia system comprises: a video playback equipment to read the video/audio information recorded on a video tape and to replay using an encoding device(encoder:AVC); a real image presenter(A2) being input with outer sound and then store and transmit respectively as well as to scanning the real image; an image movie camera such as a camcorder(A3); an audio playback equipment to read the audio signals and replay such as an audio component device(A4); and a PC body(COM) which is possible to do long distance communication or internet communication under the state of being connected with LAN network(2) or having its own modem.

Description

Educational multimedia system {Educational multi-media system}

The present invention relates to an educational multimedia system, and more particularly, programmatic power control function and selection of a video / audio device while providing video / audio information necessary for education by signally connecting a plurality of video / audio devices. The present invention relates to an educational multimedia system in which an A / V output function can be executed in a distributed / integrated manner.

As is well known, a video tape recorder for reading out and playing back video / audio information recorded on a video recording medium such as a video tape through a rotating head, a camcorder for capturing the surrounding images and recording them on a video tape; BACKGROUND ART A video reproducing apparatus, such as a television, which is equipped with a dedicated tuner and selects a broadcast channel signal of a predetermined broadcast standard through the tuner and enables video / audio reproduction through a CRT and a speaker, is generally used.

Such a video tape recorder, a video player such as a camcorder, or a television is used for I and Q signals obtained by synthesizing a luminance signal and a color difference signal (i.e., R / G / B signals) based on a predetermined broadcast video format such as NTSC standard. And the composite video signal (CVBS) having a synthesized format by mixing the chrominance signal) and the synchronization signal, which can be used as a signal of a unified video recording and reproducing method, for example, from a video tape by a video tape recorder or a camcorder. The video signal of is recorded or read in the form of such a CVBS signal to be reproduced.

On the other hand, a personal computer which is equipped with a dedicated microprocessor, a high-capacity hard disk drive, and a processing memory, respectively, to perform high-speed calculation processing, database management or input and storage processing of predetermined items, etc. In the case of the development of system architecture, in response to the increase in the data processing speed of the microprocessor, a processing function for receiving, transforming and storing image (video or still image), graphic or audio data has been adopted. The video signal for a character, picture or graphic supplied from the personal computer to the display monitor side is generated as a three-color R / G / B signal through signal processing by a VGA or S-VGA video card. It is reproduced by the display monitor for VGA or S-VGA.

Therefore, when the general video player, the audio device, and a personal computer are connected to each other in a signal system and constitute a multimedia system for use in learning or teaching, the playback image from the general video player is used for displaying on a personal computer. In order to reproduce on a monitor, it is necessary to convert the video format of the composite video signal of CVBS into the format of the R / G / B signal, while recording the display image from the personal computer to the videotape through a video tape recorder. In order to reproduce on a television screen, it is necessary to appropriately convert the R / G / B signal into a composite video of CVBS.

However, in order to reproduce a composite image from a general video player on a display monitor of a personal computer or to reproduce R / G / B images from a personal computer through a video player, a video format for each is converted. Encoding device should be added. However, the current encoding device is mainly installed in personal computer and provides only 1: 1 connection to other video player. Therefore, simultaneous connection with multiple video player is possible. There is a disadvantage that selective reproduction by means of

In addition, a plurality of display devices, such as a display monitor or a television imager, are installed in separate spaces for the purpose of learning or teaching a large number of people, and the images transmitted from the personal computer or other video playback apparatuses are stored in the plurality of display devices. In order to simultaneously reproduce them through a monitor or a television imager, a wired connection to a monitor or a television imager must be performed independently from each personal computer or video player, resulting in limitations in use. There is a disadvantage that it is impossible to install an additional imager.

In addition, a variety of video / audio equipments adopt a so-called 'multi-centre' configured with a plurality of plug storage ports to supply operating power. However, when training is performed using such video / audio equipments, Although the power saving effect is achieved only by operating a dedicated power switch for a video device or an audio device that does not currently require operation, in most cases, it is associated with an increase in power consumption as the power switch is kept ON. . In addition, when the training is performed, appropriate control of the ambient illumination (i.e., illumination) is required, but the control of such illumination is also cumbersome, and the maximization of the educational effect is hindered.

That is, in the conventional conventional multi-concentrator device, the operation of supplying commercial power is simultaneously performed regardless of the use efficiency or power characteristics of the high load device or the low load device. In the same case of initial startup or preferential startup, an unloading device such as a personal computer device may be used in the processing operation for loading a control software program corresponding to the load while generating unnecessary surge current or power noise due to sudden inflow of high power. There is a problem that there is a possibility that disagreement with the predetermined low load device is encouraged, thereby causing malfunction between devices and damage to related software programs.

In addition, in recent years, a remote control device for remotely controlling the driving of a software program of a personal computer device, or a CD-ROM drive directly connected to the personal computer device, or various external devices connected via a separate interface card. Since the remote control device has been developed and used, the necessity of remotely controlling the power supply state of the personal computer device and the plurality of video and audio playback devices is emerging.

In addition, when a plurality of video / audio devices are connected to a plurality of plug receiving ports provided in a multi-outlet device, power on / off of the power consumption or a device for executing a main program (for example, a personal computer) It is necessary to control the order. For example, if a high power consumption device is first turned on, the power supply shock may affect the next-generation devices coupled to the same multi-outlet. While the program is being loaded in the starting state, the program loading operation executed in the main body of the personal computer may not be performed smoothly due to the power shock when the peripheral devices connected to the same multi-conductor are turned on.

In addition, in the case of configuring a multimedia system by adopting a plurality of video / audio devices, it is necessary to turn on / off each power switch depending on whether the video / audio device is used or not. This is possible through the power switch installed in each device, which not only makes the operation of the power switch cumbersome but also leads to an increase in power consumption.

Accordingly, the present invention has been made in view of the above-described circumstances, and its main purpose is to integrate a plurality of video / audio devices for outputting video signals and audio signals of different video formats into a single place, and to connect the plurality of video / audio devices. The present invention provides an educational multimedia system capable of simultaneously reproducing video / audio signals from a selected device and reproducing the same on a plurality of video / audio output devices.

It is another object of the present invention to remotely control the outputs of a plurality of video / audio devices and to selectively switch outputs of necessary equipments, while a personal computer device as a main control unit or a personal computer device based on the elevation of power consumption. And multimedia power supply system with the ability to remotely control power supply through a remote control device of a personal computer device so that the power supply to the plurality of low loaders and the supply interruption are sequentially made according to a predetermined priority. To provide.

Another object of the present invention is to provide a limited power supply only to the plug storage port set for the selected group mode by differentially setting the power supply state for a plurality of plug storage ports provided in the multi-outlet for a plurality of group modes. It is to provide an educational multimedia system.

It is still another object of the present invention to provide a work schedule upon power-off in accordance with power control of a personal computer device through a remote control remote key control device for controlling sequential power supply / blocking states for a plurality of load devices including a personal computer device. It is to provide an educational multimedia system that enables automatic storage and automatic recall of stored contents upon power-on.

Still another object of the present invention is to provide a screen saver function for a personal computer device using a remote key control device for remote control of sequential power supply / blocking states for a plurality of load devices including a personal computer device. When the execution of the detected, the automatic storage of the work contents and the sequential cut off of the power supply to provide an educational multimedia system that can be made.

It is still another object of the present invention to provide an educational multimedia system that enables arbitrary registration and execution of a plurality of software programs executable on a personal computer device by a remote key control device for remote power control of a plurality of plug receiving ports. will be.

According to the educational multimedia system according to the present invention, the R / G / B signal is generated from the R / G / B signal generating means that generates video signals of moving and still images as R / G / B signals. R / G / B signal processing means for receiving digital processing and noise removing processing, and R / G / B signal processing means synchronized with the synchronization signal provided with the R / G / B signal. Control means for controlling the digital processing of the G / B signal and the noise removing processing state, and for controlling the conversion processing state of the R / G / B signal to the composite video signal; Encoding means for encoding the R / G / B signal through the G / B signal processing means and converting it into the form of a composite video signal, and predetermined video / audio for a video / audio signal input from a plurality of video / audio playback devices. To selectively reproduce only signals A selection input means for performing a selection input, a video signal from an R / G / B signal encoded by the encoding means in response to a selection input state by the selection input means, and supplied from a plurality of external video / audio playback devices Switching selection means for switching to form a signal path of a specific video / audio signal selected among the video / audio signals to be selected, amplifying means for amplifying and outputting a specific video / audio signal supplied through the switching selection means; An educational multimedia system comprising a plurality of video display means for simultaneously simultaneously reproducing a specific video / audio signal amplified by the amplifying means is provided.

According to the present invention made as described above, it is possible to simultaneously reproduce the video / audio signal from the selected video / audio signal through a plurality of video output devices in a state in which a plurality of video / audio devices are connected at the same time, Simultaneous image learning or teaching of large numbers of people gathered in a large space becomes easy.

In order to achieve another object or another object of the present invention, according to the present invention, a plurality of plug storage units are allocated for power supply of the plurality of high and low load devices included in the educational multimedia system for achieving the above object. The power supply of each plug receiving port is sequentially started based on a predetermined power supply priority for the port so that power is finally supplied to a specific plug receiving port, and when the power supply is interrupted, the specific plug storing The power distribution control device starts to cut off the power supply to the port preferentially and sequentially shuts down the remaining plug storage ports, and the sequential based on a predetermined priority made to a plurality of plug storage ports of the power distribution control device. Remote control by key input operation In addition, the remote key control device is configured to remotely control a predetermined software program to be executed by designating a registered item for short-cutting of a plurality of software programs executable for the main computer device. The main computer device generates a control command of sequential power supply / blocking to a plurality of plug receiving ports of the power distribution control device according to the execution of a software program linked with the remote key control device. The present invention provides an educational multimedia system having a function of transmitting to a remote control unit and receiving a remote control of a predetermined software program from the remote key control device so as to execute a corresponding software program.

According to the present invention made as described above, power supply is generally supplied to a personal main computer device as a high load device configured in an educational multimedia system, and a multimedia device as a plurality of load devices for recording or reproducing video / audio multimedia information. For the power distribution control device as a multi-outlet, the power supply or the power supply to the plug receiving port that accommodates the power plugs of the high-loader and the multiple-loader can be made based on a predetermined priority. In addition, it can be made according to the key operation by the remote control device for remote control. That is, the final power supply is made to a specific plug storage port in which the power plug of the high load device is accommodated at the initial power supply, while the specific plug storage port is powered off first.

1 is a schematic diagram showing an example of the configuration of an educational multimedia system according to an embodiment of the present invention;

2 is a block diagram showing in detail the configuration of the encoder employed in the educational multimedia system according to an embodiment of the present invention shown in FIG.

3 is a schematic diagram showing a configuration example of an educational multimedia system according to another embodiment of the present invention;

4 is a block diagram showing in detail the configuration of a multi-encoding device in an educational multimedia system according to another embodiment of the present invention;

5 is a block diagram including an A / V selection output function and a sequential power supply control function in an educational multimedia system according to an embodiment of the present invention;

6 is a block diagram illustrating a sequential power control path of the educational multimedia system according to the present invention shown in FIG. 5;

7 is a view showing the configuration of the remote key control device shown in Figure 6 by way of example;

8 is a block diagram of a remote key control device shown in FIG.

9 is a block diagram including a sequential power control function of the main computer configured in the educational multimedia system according to the present invention;

10A to 10E are diagrams illustrating screen display examples for explaining a sequential power control process of an educational multimedia system according to the present invention;

11 is a view showing an example of the configuration of the power distribution control device shown in FIG.

12A to 12B are flowcharts illustrating the operation of the educational multimedia system according to the present invention shown in FIG. 5 based on a power control function.

*** Explanation of symbols for the main parts of the drawing ***

2: keypad, 4: keystroke interface,

6,24: program memory, 8,26: data memory,

10,28: CPU, 12, 14, 22: transmission and reception interface,

32: keyboard, 36: position coordinate input device,

42: hard disk drive unit, 44: memory module,

46: power supply module, 52: microprocessor,

76: power control processor, 78: switching relay,

100: power distribution controller, C1 to C6: plug storage port,

COM: main computer device, SC: power control card,

SK: remote key control device, M: main monitor device,

S1 to S4: Load device, DL1, DL2, DL3: Transmission and reception connector,

AVC: AV switch.

Hereinafter, an embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 1 is a schematic diagram showing the overall configuration of an educational multimedia system according to an embodiment of the present invention. According to the figure, the video / audio information recorded on a videotape is read by a multi-encoding device (encoder; AVC). A video reproducing apparatus such as a video tape recorder (A1) to be reproduced, a physical imager (A2) capable of scanning and processing an actual image and receiving and receiving external audio, respectively, and capturing and reproducing an external image. Image-taking equipment such as camcorder (A3) for receiving and recording on video tape, audio such as audio component (A4) for receiving and outputting radio broadcasts and for reading and playing back audio signals recorded on audio tapes and audio compact discs. Built-in playback device, microprocessor, motherboard, data processing memory and hard disk drive In addition to text / video / voice input and data processing, a personal computer (COM), which is connected to a LAN network (2) or equipped with a modem itself, can be used for remote communication and Internet communication. It is connected via S-VHS connector or parallel data connector.

The multi-encoded main body AVC includes various video / audio outputs from the video tape recorder A1, the real picture camera A2, the camcorder A3, the audio component device A4, and the personal computer main body COM. At least 4 ports of RCA connector input port, S-VHS connector input port, and parallel data connector input port are installed in the predetermined part so that signals can be inputted through RCA connector, S-VHS connector or parallel data connector.

On the other hand, the signal generated from the video tape recorder A1 is, for example, a composite video signal (CVBS) conforming to a broadcast video standard such as NTSC, or a Y-C signal of S-VHS standard (e.g., S-) having 800 or more horizontal resolutions. VHS video tape recorder is applied), and the signal generated from the real-time imager A2 corresponds to a typical composite video signal or a Y / C signal of S-VHS standard, and the signal generated from the camcorder A3. Is a composite video signal or a S-VHS standard Y / C signal (e.g., when an S-VHS camcorder is applied), but in the case of the personal computer main (COM), a monitor for VGA or S-VGA is basically used. The R / G / B signal can be generated through M) and an audio signal is generated separately from the R / G / B signal.

In addition, the multi-encoding device main unit AVC is provided with a separate parallel data connector output port for monitoring and outputting a video signal encoded from the personal computer main unit COM through the monitor parallel data connector to be reproduced. At least two ports of RCA connector output port and S-VHS connector output port are installed, and through the RCA connector or S-VHS connector, the large main video output device (V1) and the medium (or large) auxiliary video By connecting to the output device (V2), respectively, the video / audio signal through the encoding process and the signal distribution process therein can be a video / audio reproduction. At this time, the main image output device (V1) is applicable as a television with a CRT consisting of a maximum screen size of 29 inches, the auxiliary image output device (V2) has a CRT consisting of a screen dimension of 29 to 20 inches Applicable as a television.

In addition, according to the drawing, an external IR receiver for receiving a remote control signal, for example, an infrared type, generated from a predetermined remote controller (hereinafter referred to as a remote controller) separately provided to remotely control the operation of the corresponding multi-encoding device AVC ( 4) and an external regulator 6 which is wired to the corresponding multi-encoding device main body AVC and which can adjust the function even at a long distance.

2 is a block diagram showing in detail the configuration of a multi-encoding device in an educational multimedia system according to a preferred embodiment of the present invention. In the device of the present invention, reference numeral 10 is generated from the personal computer main COM. An analog-to-digital converter which receives an R / G / B signal of a predetermined moving image or a still image, and performs digital sampling and quantization processing, respectively, and 12 denotes an unevenness generated in an image of the digitally converted R / G / B data. The flicker filter which performs a filtering process for removing flicker noise components is shown.

In addition, reference numeral 14 denotes a video memory composed of, for example, a frame memory in which R / G / B data through the flicker filter 12 is stored, for example, in units of frames, and read out. 16 denotes a video memory from the video memory 14. Digital-to-analog converter for converting read-out R / G / B data to analog conversion.

Further, reference numeral 18 receives a composite synchronous signal generated together with the R / G / B signal from the personal computer body COM and performs PLL (Phase Locked Loop) operation and frequency division operation. A first clock generator for generating a first clock signal for synchronizing the digital conversion, the data storage processing, and the analog conversion processing, 20 denotes the first clock signal from the first clock generator 18 to receive the analog clock signal. A display control section for generating control data and operation clocks for data processing operations of the digital converter 10, the flicker filter 12, the video memory 14, and the digital-analog converter 16 is shown.

In addition, the reference numeral 22 converts the analog R / G / B signal generated from the digital-to-analog converter 16 under the control of the display controller 20 into a composite video signal CVBS and outputs the encoded signal. As a video encoder, the video encoder 22 is capable of being converted into a Y / C signal form as a result of the encoding processing for the R / G / B by a predetermined mode switching.

In addition, the video encoder 22 receives an R / G / B signal from the digital-analog converter 16 and supplies it to the personal computer monitor M through a parallel data connector to reproduce a corresponding image. To be possible.

Further, reference numeral 24 denotes the video tape recorder A1 supplied through the RCA connector input port, the S-VHS connector input port and the parallel data connector input port, an actual imager A2, a camcorder A3, and an audio component. A selection switch section for performing selective switching for reproducing video / audio by selectively passing the video / audio signal from the apparatus A4 and the personal computer main body COM.

Here, an external IR receiver 4 and an external regulator 6 capable of selective switching for each function in addition to the selection switch unit 24 are provided, and the external IR receiver 4 is a radio generated from a predetermined remote control. Receives a remote control signal of the control unit is supplied to the signal encoder (36) of the next stage through the control signal encoded by the signal encoder 36 to control the switching process of the switch control unit 26, the external regulator Numeral 6 designates a switching state of the switch control section 26 by a wired function adjustment operation.

Reference numeral 26 denotes an audio signal AU1 from the personal computer main unit COM input through the input terminal thereof, a composite video signal CV1 from the video tape recorder A1, and a composite from the physical imager A2. The video signal (or Y / C signal), the composite video signal from the camcorder A3, the audio signal AU2 from the audio component device A4, and the R / G / B signal are generated by the video encoder 22. A switching control section for performing switching control for selectively passing a selected video / audio signal or audio signal according to the switching state of the selection switch section 24 among the encoded composite video signals (or Y / C signals), 28 Denotes a second clock generator for generating a second clock signal for synchronizing the switching operation of the switch controller 26. FIG.

Further, reference numeral 30 denotes a video / audio amplification or audio amplification of a video / audio signal or an audio signal that is selectively passed through the switching process of the switch control unit 26, so that an external video output device, that is, a large main video output device V1. ) And a video / audio amplifier outputted to the medium (or large) auxiliary video output unit V2 side.

Next, an operation according to an embodiment of the present invention made as described above will be described in detail with reference to FIGS. 1 and 2.

First, a personal computer main unit COM, a video tape recorder A1, an actual imager A2, a camcorder A3, and an audio component device A4 are connected to an RCA connector or an S-VHS connector to the corresponding multi-encoding device AVC. Alternatively, a large main video output device V1, a medium (or large) auxiliary video output device V2, and a display monitor M are connected to each other in a state in which a parallel data connector is connected.

In that state, the analog-to-digital converter 10 digitally converts the R / G / B signal supplied from the personal computer main COM, and the flicker filter 12 converts the digitally converted R / G / B data. While the flicker noise component is filtered and removed, the video memory 14 stores the filtered R / G / B data, for example, in units of frames by the control of the display controller 20. 16) converts the R / G / B data read through the video memory 14 into analog outputs.

Accordingly, the video encoder 22 applies the analog-converted R / G / B signal to the display monitor M side so that the image can be reproduced, and the R / G / B signal is encoded. For example, by converting into a composite video signal (CVBS) corresponding to a video format such as NTSC standard, it is supplied to one input terminal of the switch control unit 26. In addition, the audio signal AU1 from the personal computer main body COM is supplied to the input terminal of the switch control unit 26.

On the other hand, the wireless remote control signal is generated by directly operating the selection switch unit 24 or the external controller 6 or by a predetermined remote control, and the control signal is transmitted through the external IR receiver 4 and the signal encoder 36. When the switch control unit 26 is capable of switching to selectively supply the composite video signal from the video encoder 22 and its audio signal as it is generated, the switch control unit 26 has a second clock. Synchronized with the operation clock from the generator 28, the composite video signal converted from the R / G / B signal from the video encoder 22 and the video / audio are formed while forming a signal output path for the audio signal AU1. The amplification unit 30 is amplified to be simultaneously reproduced through the main image output device (V1) and the auxiliary image output device (V2).

On the other hand, according to the selection operation according to the direct selection operation of the selection switch section 24 or the external regulator 6 or the reception processing of the remote control signal by the external IR receiver 4 and the signal encoder 36, for example. In the case of reproducing a reproduced video signal from the video tape recorder A1, that is, a composite video signal, the switch control unit 26 supplies a composite video signal supplied from the video tape recorder A1 in response to the selection operation. The composite video signal CV1 amplified by the video / audio amplification unit 30 by forming a signal path for the CV1) may be simultaneously reproduced through the main video output device V1 and the sub video output device V2. To help.

In this case, the composite image signals CV2 and CV3 generated from the real image device A2 and the camcorder A3 are performed in the same operation as described above, and the switch control unit is applied to the audio component device A4. According to the switching control state of (26), not only the audio signal AU2 can be reproduced simultaneously through the speakers of the main video output device V1 and the sub video output device V2, but also the personal computer main body COM. It can be reproduced simultaneously with the image by the R / G / B signal provided from the.

Next, another embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 3 is a schematic diagram showing the overall configuration of an educational multimedia system according to another embodiment of the present invention. According to the figure, a video for reading and playing recorded information of a videotape in a corresponding multi-encoding device body (AVC) is shown. A video playback device such as a tape recorder (A1), a physical imager (A2) capable of scanning and receiving an actual audio image, and receiving and storing an external audio signal, and receiving an external audio signal together with an image capture of a real image. Image-taking equipment such as camcorder (A3) for recording and storing on video tapes, audio-reproducing equipment (A4) for receiving and outputting radio broadcasts and for reading and playing back audio signals recorded on audio tapes and audio compact discs. And a character / image / sound with a microprocessor, motherboard, data processing memory, and hard disk. In addition to inputting data and processing data, a personal computer (COM) capable of long-distance communication and Internet communication connected to a LAN network (2) or equipped with a dedicated modem is provided with an RCA connector, an S-VHS connector, or parallel data. It is connected via a connector.

The multi-encoding device main body AVC includes various types of video / outputs outputted from the video tape recorder A1, the real picture camera A2, the camcorder A3, the audio component device A4, and the personal computer main body COM. At least 4 ports of RCA connector input port, S-VHS connector input port, and parallel data connector input port are installed in the predetermined part so that audio signal can be input through RCA connector, S-VHS connector or parallel data connector. .

On the other hand, the signal generated from the video tape recorder A1 is, for example, a composite video signal (CVBS) conforming to a broadcast video standard such as NTSC, or a Y-C signal of S-VHS standard (e.g., S-) having 800 or more horizontal resolutions. VHS video tape recorder is applied), and the signal generated from the real-time imager A2 corresponds to a typical composite video signal or a Y / C signal of S-VHS standard, and the signal generated from the camcorder A3. Is a composite video signal or a S-VHS standard Y / C signal (e.g., when an S-VHS camcorder is applied), but in the case of the personal computer main (COM), a monitor for VGA or S-VGA is basically used. The R / G / B signal can be generated through M) and an audio signal is generated separately from the R / G / B signal.

In addition, in the multi-encoding device body (AVC), a separate monitor parallel data connector output port is provided at least three ports, which are input from the personal computer body (COM) through each monitor parallel data connector and encoded. The video signal can be simultaneously and reproducibly outputted through a plurality of display monitors such as the first and second monitors M1 and M2 and a projection monitor PV having a large screen of 40 inches or more.

In addition, at least two or more RCA connector output ports and S-VHS connector output ports are installed in the main body of the multi-encoding device (AVC) to provide a medium (or large) auxiliary video output device via an RCA connector or an S-VHS connector. By connecting to V3 and V4, respectively, the video / audio signal through the encoding process and the signal distribution process therein can be reproduced.

4 is a block diagram showing in detail the configuration of a multi-encoding device in an educational multimedia system according to another exemplary embodiment of the present invention, in which the same components as those of FIG. 2 according to an embodiment of the present invention in the same drawing. The same reference numerals will be used for the description thereof and the detailed description thereof will be omitted.

That is, the R / G / B signal from the personal computer main COM through the analog-to-digital converter 10, the flicker filter 12, the video memory 14, and the digital-to-analog converter 16 is converted into the video. It is reproduced through the first monitor M1 via the encoder 22 and is also applied to the second monitor M2 additionally installed to reproduce the image, and in addition to the first and second monitors M1 and M2, It is also provided on the side of the installed very large projection monitor so that the image can be reproduced at the same time.

Next, another operation of the embodiment of the present invention made as described above will be described in detail with reference to FIGS. 3 and 4.

First, a personal computer main unit COM, a video tape recorder A1, an actual imager A2, a camcorder A3, and an audio component device A4 are connected to an RCA connector or an S-VHS connector to the corresponding multi-encoding device AVC. Alternatively, a very large projection monitor (PV) having a screen size of at least 40 inches and a medium (or large) auxiliary video output device (V3, V4), first and second devices connected to each other through a parallel data connector. Make sure that the monitors M1 and M2 are connected.

In that state, the analog-to-digital converter 10 digitally converts the R / G / B signal supplied from the personal computer main COM, and the flicker filter 12 converts the digitally converted R / G / B data. While the flicker noise component is filtered and removed, the video memory 14 stores the filtered R / G / B data, for example, in units of frames by the control of the display controller 20. 16) converts the R / G / B data read through the video memory 14 into analog outputs.

Accordingly, the video encoder 22 applies the analog-converted R / G / B signal to the first and second display monitors M1 and M2 and the projection monitor PV to simultaneously reproduce the image. In addition, the R / G / B signal is encoded and supplied to one input terminal of the switch controller 26 by converting the R / G / B signal into a composite video signal CVBS corresponding to a video format such as NTSC standard. In addition, the audio signal AU1 from the personal computer main body COM is supplied to the input terminal of the switch control unit 26.

On the other hand, when the switch control unit 26 can perform switching for selectively supplying the composite video signal from the video encoder 22 and its audio signal by a selection operation by the selection switch unit 24. The switch control unit 26 is supplied with an operation clock from the second clock generator 28 and synchronized to convert the R / G / B signal from the video encoder 22 and its audio signal ( The composite video signal amplified by the video / audio amplifier 30 and the audio signal AU1 are simultaneously formed through the first and second auxiliary image output devices V3 and V4 while forming a signal output path for AU1). To be reproduced.

On the other hand, in the case of trying to reproduce the composite video signal CV2 for the real image inputted from the real imager A2 by the selection operation of the selection switch section 24, the switch control section 26 performs the above operation. The composite video signal amplified by the video / audio amplifier 30 by forming a signal path for the composite video signal CV2 supplied from the real image device A2 in response to a selection operation of the selection switch unit 24. CV2 can be simultaneously reproduced through the first and second auxiliary image output devices V3 and V4.

The present invention made as described above is not limited to the embodiments, and various modifications can be made without departing from the gist of the invention, for example, video / audio connected to a main body of a multi-encoding device. Although the apparatus has been described as an example in which the video tape recorder A1, the physical imager A2, the camcorder A3, the audio component device A4, and the personal computer main body COM are respectively connected, Of course, it is possible to easily connect and use with various other video / audio devices such as.

5 is a block diagram showing an A / V selection output function and a sequential power control function in an educational multimedia system according to an embodiment of the present invention. Referring to the drawings, power distribution control in the form of a multi-outlet device is shown. A plurality of first to sixth devices 70 are provided so that a plurality of power plugs can be connected to the front of the body at the same time by extending the main plug P0 connected to the main wall outlet (not shown) installed on the wall of the building. Plug storage ports C1 to C6 are provided, and a connection port with a transmission / reception connector DL2 drawn out from the remote function controller SK described later is formed in a predetermined portion on the side.

Here, the power distribution control device 70 applies the commercial power supplied through the main plug P0 to one side of the front of the body to the first to sixth plug storage ports C1 to C6 in full. A switching switch 70a is provided for manually switching the state of switching off the power supply, and among the first to sixth plug storage ports C1 to C6, for example, a predetermined high load is applied to the sixth plug storage port C6. It is assigned as a specific plug-in port that is connected to the device or the main control unit of the corresponding multimedia system (ie, the main computer device in the embodiment of the present invention).

Therefore, the initial supply of commercial power is sequentially started from the remaining plug storage ports C1 to C5 by remote control of a remote key control device (b: corresponding to the external regulator 6 in FIGS. 1 and 3) described later. While switching is sequentially performed so that power is finally supplied to the sixth plug storage port C6, the supply of commercial power that is being supplied to the first to sixth plug storage ports C1 to C6 as a whole is performed. In the case of blocking, the power is cut off from the sixth plug storage port C6 connected to the main computer device COM as the high load device according to the predetermined priority, and the remaining plug storage ports C1 to C5 are in order. Make sure to turn off the power sequentially.

However, when a remote power control device (SK), which will be described later, initiates or cuts off a single power supply to a specific plug storage port, the power supply can be started or cut off independently of a designated plug storage port. To help.

Here, the first to sixth plug storage ports C1 to C6 provided in the power distribution control device 70 are described as an example in which six pieces are provided in the body, but less than six or more as necessary. In addition, the number can be freely increased or decreased to produce a set.

In addition, in the figure, the personal main computer device COM as a high load device capable of processing or calculating various input data has its power plug P6 extending from the main body and storing the specific plug of the power distribution control device 70. The remote key control device via a transmission / reception connector DL1 via a power control card SC mounted to be accommodated in a sixth plug storage port C6 designated as a port and capable of exchanging data therein. Connect to data input / output port of SK).

In addition, for the remaining plug storage ports C1 to C5 except for the sixth specific plug storage port P6 provided in the power distribution control device 70, various processing operations of the main computer device COM are assisted. A nearby load device or a loading device for processing multimedia information such as video and audio information, for example, a display main monitor device M, a video tape recorder S1, a video disc player S2, an audio device S3. And each of the large screen display apparatuses S4 in the state in which the large screen display apparatus S4 is connected to the main computer apparatus COM or independently operable via a predetermined connector means as the main display means and the first to fourth load devices. When the power plugs P1 to P5 are extended and the sixth plug storage port C6 (that is, the "on" operation of the commercial power supply starts), the power is finally supplied, while the power supply is supplied first when the commercial power supply is "off". Is blocked Side of the plug port housing of) the other plug receiving port (C1~C5), except that each is received in a predetermined plug receiving port.

In the drawing, first to third load devices S1 to S3 serving as multimedia devices for providing various kinds of video / audio information are provided with an AV switching device corresponding to the multi-encoding device from the output port of the video / audio information. AVC is connected to each of the plurality of video / audio input ports (that is, RCA input port, S-VHS input port and audio input port are installed in a mixed state), and is wired to the corresponding port. The video / audio output port is wired to the video / audio input port of the large monitor device S4, and the AV switching operation of the AV switch device AVC is performed by the power distribution controller 70 and the third transmission / reception connector. DL3 is connected via the AV switching control command from the power distribution control device 70.

On the other hand, the power distribution control device 70 is capable of controlling the AV switching operation of the AV switching device AVC by receiving the AV switching control command from the remote key control device SK.

In addition, the signal generated from the video tape recorder as the first load device S1 is a composite video signal (CVBS) conforming to a broadcast video standard such as NTSC, for example, or a Y-C of S-VHS standard having a horizontal resolution of 800 or more. Signal (for example, when an S-VHS video tape recorder is applied), and a signal generated from a video disc player as the second load device S2 is a typical composite video signal or a Y-C signal of S-VHS standard. In the case of the audio device as the third load device S3, an audio signal is generated, but in the case of the main computer device COM, the monitor device M for VGA or S-VGA is basically used. An R / G / B signal in an outputable form can be generated and an audio signal is generated separately from the R / G / B signal.

FIG. 6 is a block diagram illustrating a sequential power control path of the educational multimedia system according to the present invention shown in FIG. 5, wherein first to sixth plug storage ports C1 to C6 are connected to the power distribution control device 70. The main computer device (COM), the main monitor device (M), and the first to fourth load devices (S1 to S4) are not supplied with power as the supply of commercial power supplied from the main plug is cut off. In the state, as the main power control button PW of the remote key control device SK is operated as a button, the button operation information of the main power control button PW is transmitted to the power distribution control device 70 while the power is controlled. The distribution control device 70 supplies the commercial power to the first to fifth plug storage ports C1 to C5 except for the sixth plug storage port C6 to which the power plug P6 of the main computer device COM is coupled. Can be supplied sequentially, then finally So that the commercial power supply to the group sixth plug receiving port (C6) can be supplied subsequently.

On the other hand, the power control information from the remote key control device (SK) is input to the power control card (SC; see Fig. 9) built in the main computer device (COM) via the transmission and reception connector (DL1), the corresponding main In the computer device COM, the power " on " control state by the remote key control device SK is displayed on the video screen of the main monitor device M by the control information processing by the power control card SC. In addition to processing the data, the registration process is performed while registering the shortcut execution for the software program from the corresponding main computer device (COM) which can be remotely executed by the remote key control device (SK). Data processing is performed so that the device M is visually displayed.

FIG. 7 is a view showing the configuration of the remote key control device shown in FIG. 6 by way of example. In the remote key control device SK according to the drawing, the main computer device COM is embedded in a transmission / reception port of one side thereof. The first transmission / reception connector DL1 connected to the power control card SC is coupled to enable transmission and reception of data, and a second transmission / reception connector connected to the power distribution control device 70 at the transmission / reception port of the other side. DL2) is coupled to enable transmission and reception of data related to power supply control.

In addition, the remote key control device (SK) has a main power control button (PW) is installed on a predetermined front side of the body to accommodate a specific plug, such as the sixth plug storage port (C6) of the power distribution control device (70) Compared to other plug-in ports C1 to C5, the port can be remotely controlled for the power control operation for the final start of power supply or the interruption of the priority power supply at the time of power-off. The lock button SPW is separately installed in the vicinity of the button PW to prevent the inadvertent operation of the inadvertent main power control button PW by performing a lock operation on the corresponding main power control button PW.

In addition, the remote key control device SK has a first to sixth power button SW1 to SW6 corresponding to a plurality of plug storage ports C1 to C6 allocated to the power distribution control device 70. When installed, independent start or shutdown control of the individual power supply to each designated plug receiving port is made according to the operation state of each power button irrespective of the sequential control function of power supply / blocking according to priority.

Further, the first to ninth speed control buttons, which are capable of registering up to nine software programs to be shortened in execution in correspondence with the respective control buttons in connection with the execution of the software program executable in the main computer device COM. (PB1 to PB9) are installed, the first program control button (PGB1) for returning to the initial screen of an operating system such as Windows or Linux system, and the second program for setting iconization / end for a predetermined software program. Third program control button (PGB3) for short-running Internet web browser program such as control button (PGB2), Internet Explorer or Netscape Communicator, etc. A fourth program control button (PGB4) for querying the list of software programs is provided.

In addition, the remote key control apparatus SK includes video / audio information reproduced by the first to third load devices as the multimedia apparatus, that is, the video tape recorder S1, the video disk player S2, and the audio device S3. AV switching button (SLT) for selectively switching the large screen display device (S4) for screen playback and audio output, and first to sixth plugs of the power distribution control device (70) according to the A and B modes. A mode setting button (SET) for registering and setting an optional power supply / blocking function for the storage ports C1 to C6 for each group, and for selecting a registration item for registering a plug storage port for each group according to A and B modes. The mode switching button SB is installed.

FIG. 8 is a block diagram of the remote key control device shown in FIG. 7, wherein reference numeral 202 denotes a power control button PW provided on the front of the remote key control device SK, and the first to the second to key controls. Sixth power button SW1 to SW6, first to ninth single speed control buttons PB1 to PB9, AV switching button SLT, mode setting button SET, mode switching button SB, and first to fifth A keypad including four program control buttons (PGB1 to PGB4) is shown, and 2044 is an interface for processing a key input signal according to a key input operation of the keypad 202 in the form of a data processable signal in the CPU 210 which will be described later. Represents a key input interface.

In addition, reference numeral 2066 denotes a control program related to the power supply / blocking control of the power distribution control device 70 by the key input of the keypad 202 and the registration and operation of a software program for the main computer device COM. This stored program memory is shown, and 208 denotes a data memory for temporarily storing data generated in the power control of the corresponding remote key control device SK, setting of plug-in ports for each group, registration of software programs, and execution processing.

Further, reference numeral 210 is executed by a control program of the program memory 206 to input a button input signal corresponding to a button operation of the power control button PW of the keypad 202 through the key input interface 204. To generate and output power supply control information or power cutoff control information, and to short-cut the first to ninth speed control buttons PB1 to PB9 of the corresponding keypad 202 when outputting the power supply control information. A CPU for generating a registration control signal for requesting registration of a software program to be allocated is shown.

Here, the CPU 210 controls the power supply / blocking control by group among the plurality of plug receiving ports C1 to C6 of the power distribution control device 70 in A and B modes through the main computer device COM. Receives information on the setting items registered and configured to be performed from the main computer device (COM) and stores them in the data memory 208, and for each group belonging to the A mode or B mode selected based on the setting items. It is designed to perform power supply / blocking control of the plug storage port.

Reference numeral 212 is connected to the first transmission / reception connector DL1 connected to the main computer device COM side to transmit / receive data signals with the power control card SC of the CPU 210 and the main computer device COM. A first transmission and reception interface for performing an interface operation according to the present invention, 214 is connected to the second transmission and reception connector DL2 connected to the power distribution control device 70 side, the CPU 210 and the power distribution control device A second transmission / reception interface for performing an interface operation for data signal transmission and reception with 70 is shown.

FIG. 9 is a block diagram illustrating a sequential power control function of a main computer configured in an educational multimedia system according to the present invention. FIG. 9 illustrates an internal configuration of a main computer device shown in FIG. 3 and a power control card embedded in the main computer device. As a detailed block diagram showing, first, in the power control card (SC) built in the main computer device (COM), reference numeral 322 is connected to the first transmission and reception connector (DL1) connected to the remote key control device (SK) side. In this case, a transmission / reception interface for performing an interface operation for data signal transmission and reception between the CPU 210 of the remote key control device SK and the CPU 328 of the power control card SC is shown.

Reference numeral 324 denotes power control for the power distribution control device 70 through the remote key control device SK, processing related to main power on / off control of the main computer device COM and registration of a software program. A program memory in which a control program for controlling an operation is stored is stored, and reference numeral 326 denotes a power control for the power distribution control device 70 and the main computer device COM which are performed through data communication with the remote key control device SK. A data memory for temporarily storing processing data generated in association with power on / off control and registration of a software program is shown.

Reference numeral 328 denotes the power distribution control device 70 by data communication with the remote key control device SK through the first transmission / reception connector DL1 based on the control program of the program memory 324. The CPU which generates processing data for the power control state, the main power on / off control state for the corresponding main computer device COM, and the registration state of the software program is shown, and 330 denotes the CPU 28 and the main computer device described later. An input / output port that performs input / output processing of a data signal for data communication with the microprocessor 352 of COM.

On the other hand, in the main computer device (COM) shown in the figure, the keyboard input port 334, the position coordinate input port 338, the input / output port 340, the memory module 344, the microprocessor 352, the data input / output port (354,358, 364) are mounted on a single motherboard having a predetermined data transmission / reception method, and the microprocessor 352 is configured with a chipset of a predetermined data processing method in order to secure stability in data processing.

In the figure, reference numeral 334 is a keyboard input port that is wired through a keyboard 332 and a connector and receives a keyboard input signal by a key input of a corresponding keyboard 332 and transmits it to the microprocessor 352. The keyboard input signal of the keyboard 332 input through the keyboard input port 334, together with an input signal of a letter, number or function key corresponding to the operation area of a typical main computer device COM, is connected to the remote key control device. Sequential control input through priority of power to the power distribution control device 70 that can also be controlled by SK, registration and selection of plug storage ports for groups according to A and B modes, and registration of software programs It includes both an input and an input signal related to the main power off control of the main computer device COM.

Further, reference numeral 338 denotes a position coordinate input port for receiving a position coordinate input signal by the operation of the position coordinate input device 336 called a "mouse input device" and transmitting it to the microprocessor 352. The position coordinate input signal input through the input port 338 is input to the position coordinate for the selection and confirmation procedure of the function menu displayable on the main monitor device M under an operating system such as Windows or Linux system, as well as the power distribution control. Power control for the device 70 and main power-off control of the main computer device COM, registration and selection by group of plug storage ports, and input signals by positional coordinate input related to the registration and execution of software programs.

Reference numeral 340 denotes an input / output port for performing input / output processing of data signals for data communication between the CPU 28 of the power control card SC and the main computer apparatus COM.

In addition, the reference numeral 342 has a predetermined data storage capacity, and in addition, it is possible to record or erase the system of the operating system required for the corresponding main computer device (COM), various software programs, and processing data thereof in a magnetic recording manner. A hard disk device capable of performing a function as a virtual memory by assisting the data storage process for the memory module 344 to be described later, and 344 is a predetermined storage for temporarily storing state data generated in execution of various software programs and data processing. A memory module in which a unit memory device having a capacity is modularized is shown.

Also, reference numeral 346 converts the AC power applied through the power plug P6 of the corresponding main computer device COM into a rectified and smoothed DC power source, such as a microprocessor 352 or a clock driving device (not shown). In addition to supplying standby power, the power supply module supplies power to the respective driving elements according to the power "on" state of the corresponding main computer device COM, and 350 denotes a predetermined portion of the main body of the main computer device COM. A power switching unit that performs a switching operation for supplying power or cutting off the DC power from the power supply module 346 by button operation of the installed power key button 348 or power control from the microprocessor 352. Indicates.

Further, reference numeral 352 denotes a microprocessor which performs arithmetic processing related to various software programs that can be executed by the main computer apparatus COM, and the microprocessor 352 is a power control card through the input / output port 340. Power control of the power distribution control device 70 through data communication with the SC, main power on / off control of the corresponding main computer device COM, group power control of a plurality of plug storage ports, Screen display and data operation processing related to the registration and execution of various software programs are performed.

Reference numerals 354, 358, and 364 are provided on the main board on which the microprocessor 352 is mounted, and are provided with the first to the first to provide data input / output paths between the microprocessor 352 and an external device or an additionally coupled device. 3 Indicates data input / output port.

Here, the first data input / output port 354 is connected to the main monitor device M through a connector via a screen display module 356 made of a graphic data processing card for screen display such as a VGA card. Displaying character data or graphic data on the main monitor device M according to data processing related to power on / off control from the microprocessor 352, power control for each group of plug storage ports, and registration and execution of a software program. In addition to outputting the display data, response data or result data from the screen display module 356 may be input.

In addition, the second data input / output port 358 is connected to the speaker 362 through a voice processing module 360 made of a data processing card such as a sound blaster, for example, and the microprocessor ( 352 transmits the voice data signal generated as a result of execution of the pre-registered software program to the corresponding voice processing module 360 so as to be output through the speaker 362 or from the voice processing module 360. Receive response data or result data.

The third data input / output port 364 is coupled to a communication modem 366 connected to a communication line, such as a general telephone line or an ISDN line, via a communication line connector 368, and is connected to a pre-registered communication software program. According to the result of the execution of the information on the microprocessor 352 to provide an input and output path capable of data transmission and reception.

On the other hand, the data processing for the sequential power control according to the priority of the power distribution control device 70 by the microprocessor 352, the power control for each group of the plug storage port according to the A, B mode, and the software program The menu screen reproduced on the main monitor device M through the graphic processing of the screen display module 356 according to the data processing related to the registration and execution of the above is as shown in Figs. 10A to 10E.

That is, as shown in Figure 10a, when the power-on control signal (PW) is input via the power control card (SC) of the remote control key (SK) of the remote control button (SK), power distribution On the initial screen based on an operating system such as Windows or Linux by the data processing by the microprocessor 352 while the main computer device COM and the main monitor device M supplied with operating power from the control device 70 are turned on. The remote key control menu window DSK having a shape similar to that of the remote key control device SK is displayed on the screen.

As shown in Fig. 10A, the remote key control menu window DSK displayed by the main monitor device M has the same function and number as the key input buttons of the remote key control device SK. Icon DPW for the control button, icons DSW1 to DSW6 for the first to sixth power buttons, icons DPB1 to DPB9 for the first to ninth speed control buttons, icons DSLT for the AV switching button, and modes The icon DSET for the setting button, the icon DSB for the first mode switching button, and the icons DPGB1 to DPGB4 for the first to fourth program control buttons are displayed. It can be selectively executed by moving the cursor 82 by user operation of the keyboard 332 or the position coordinate input device 336.

Meanwhile, as shown in FIG. 10A, the main power control button icon of the remote key control menu window (DSK) in the state where sequential power supply is made to the power distribution control device 70 based on priority. Each time the cursor 80 is approached on the DPW, the character display indicating the power "on" state, such as "Power On", is performed.

Here, the first mode switching button icon DSB displayed on the remote key control menu window DSK is provided in the form of a seesaw button, and the button shape is emitted when the button is switched according to the switching from the A mode to the B mode. It is processed to be converted to a form.

Next, as shown in FIG. 10A, while the initial power is supplied and the remote key control menu window DSK is displayed on the screen, as shown in FIG. 10B, the first power distribution control device 70 of FIG. The registration process of the plug storage port for controlling the power by classifying the sixth plug storage ports C1 to C6 into groups according to the A and B modes is performed. The menu window 84 for port registration for the registration process is performed. Is displayed.

According to the port registration menu window 84 shown in FIG. 10B, the first to sixth corresponding to the first to sixth power button icons DSW1 to DSW6 of the remote key control menu window DSK, respectively. Six registration mark icons 86 corresponding to the button registration icons SSW1 to SSW6 and the first to sixth button registration icons SSW1 to SSW6, respectively, include a plug storage port selected for the A mode. A group item 88A of mode A representing a group of " A " and a group item 88B of mode B representing a group of plug receiving ports selected for mode B are displayed, while the menu of the remote key control menu window DSK is displayed. The second mode switch button icon 90 having the same function as the icon DSB for the one mode switch button is included.

Here, for example, the first, third, fifth, and sixth button registration icons (SSW1, SSW3, SSW5, and SSW6) are set in the group item 88A of the A mode of the port registration menu window 84 to control the power distribution. The first, third, fifth and sixth plug receiving ports C1, C3, C5 and C6 of the apparatus 100 are registered, and for example, the second, fourth and sixth button registration icons in the group item 88B in the B mode. The second mode switching button icon is set when (SSW2, SSW4, SSW6) are set, and the second, fourth, and sixth plug receiving ports C2, C4, and C6 of the power distribution controller 70 are registered. If 90 is operated in accordance with the A mode, the registration display icons 86 corresponding to the first, third, fifth, and sixth button registration icons (SSW1, SSW3, SSW5, SSW6) respectively indicate the registration status. Lights up. However, the sixth mode switching button icon SSW6 is basically registered in the group item 88A in mode A and the group item 88B in mode B in the initial registration state.

Next, as shown in FIG. 10C, a process for initial registration of a specific software program requiring shortening execution among a plurality of software programs stored in the hard disk device 342 of the main computer device COM is performed. The menu registration window 92 for program registration is displayed on the screen of the main monitor apparatus M. FIG.

Here, the program registration menu window 92 displays nine program registration items for registering up to nine programs, and a program designation item for designating a required software program for each program registration item. .

Meanwhile, in the case of the remote key control menu window (DSK), a function of arbitrarily manipulating each menu window in a window environment or a Linux environment is provided. Therefore, the movement and minimization of the remote key control menu window (DSK) is performed. You can also switch to the previous size and close the menu window (which can also be done by pressing Alt + F4).

Next, a power supply " on " operation is performed on the power distribution control device 70 so that power is supplied to other load devices including the main computer device COM, and the keyboard 332 or position coordinate input. After the user operates the device 336 to execute a predetermined software program, the user can operate the keyboard 332 or the position coordinate input device 336 to generate an enter function of the currently executing software program or to create a new program window. When it is made to proceed, as shown in Fig. 10D, a plurality of program windows 94A to 94C for the corresponding software program are displayed on the screen.

At this time, the main power control button (PW) or the remote key control menu window (DSK) of the remote key control device (SK) in the state that the plurality of program windows (94A to 94C) are displayed on the screen as shown in the same figure When the icon (DPW) for the main power control button of the is operated or the screen save function set in the corresponding main computer device (COM) is executed, the data of the plurality of program windows 94A to 94C displayed according to the execution state of the software program. And its associated work data are stored in a predetermined recording area of the hard disk device 342, and then the power of the main computer device COM is " off ", while the first to sixth operations of the power distribution control device 70 are performed. The power supply states to the plug storage ports C1 to C6 are sequentially blocked based on a predetermined priority.

In addition, a plurality of program windows 94A to 94C shown in FIG. 10D are stored in the hard disk device 342 so that the power of the main computer device COM is " off " In the state where the first to sixth plug storage ports C1 to C6 are generally turned off, the main power control button PW of the remote key control device SK is operated with the key distribution control device 70. In the case where the first to sixth plug storage ports C1 to C6 of the power supply are sequentially started based on a predetermined priority, as shown in FIG. 10E, the power supply of the corresponding main computer device COM is turned off. While being "on", data according to the plurality of program windows 94A to 94C stored in the hard disk device 342 and the corresponding work data are loaded and displayed on the main monitor device M, and the menu window for remote key control is displayed. While the initialization of the DSK is executed, the plurality of program windows 94 A to 94C) are displayed on the screen.

Here, when the seesaw button DSB is operated, the power is switched from the power ON state of the device set to DSW1 to DSW2 to the power ON state of the DSW4-DSW6. ON / OFF control is performed.

In addition, when the DSLT switch is operated, output selection of the plurality of video / audio devices is possible in response to the operation of the DSW1-DSW6.

11 is a diagram showing an example of the configuration of the power distribution control device shown in FIG. 5, the reference numeral 70 is wired through the remote key control device (SK) and the second transmission and reception connector (DL2) and at the same time the AV switching device And the data communication between the CPU 10 of the remote key control device SK and the power control processor 706 in the corresponding power distribution control device 70 in a wired connection with the AVC and the third transmission / reception connector DL3. And a transmission / reception interface for performing an interface operation of data communication for the AV switching operation to the AV switching apparatus AVC.

Further, reference numeral 702 is installed on a predetermined side outside the power distribution control device 70 to sequentially perform power supply or power cutoff of the first to twelfth plug receiving ports C1 to C6 in order of priority. Indicates a manually operated switch.

In addition, the reference numeral 706 is applied to the operation clock signal generated from the clock generator 704, the operation is activated, the remote key control device through the manual operation of the switching switch 702 or the transmission and reception interface 700 The first to sixth plug storage ports C1 to 6 according to the priority of the interruption operation by the power supply " power on " or " off " function according to the control logic predetermined by the data communication with the SK. A power control processor for controlling the power supply or the power-off for C6) to be executed sequentially, the power control processor 706 from the remote key control device SK via its transmission / reception interface 700. AV switching control for selecting a load device as a multimedia device corresponding to the AV switching device AVC through the third transmission / reception connector DL3 when an AV switching control command is received. Allow the command to be sent.

Here, the power control processor 706 when the power "on" operation is performed by the switching switch 702 or receives a data signal for power supply control from the remote key control device (SK), the first To the first to fifth plug storage ports C1 to C5 except for the sixth plug storage port C6 connected to the power plug P6 of the main computer device COM among the sixth plug storage ports C1 to C6. Power supply to the main monitor device M and the first to fourth load devices S1 to S4 is preferentially performed, and then the corresponding main computer device COM The control process is performed so that power supply to the sixth plug storage port C6 connected to the terminal device may be finally performed.

On the other hand, when a power "off" operation is performed by the changeover switch 702 or receives a data signal for power supply cutoff control from the remote key control device SK, the main computer device COM The power supply cutoff of the sixth plug storage port C6 connected to the power plug P6 is made first, and finally, the first to fifth plug storage ports except for the sixth plug storage port C6. The power supply to (C1 to C5) is cut off sequentially.

Reference numeral 78 denotes a power supply based on priority for the first to sixth plug storage ports C1 to C6 by receiving a power control signal according to a predetermined power control logic from the power control processor 706. Or a switching relay unit for performing a switching operation to cut off the power supply, wherein the switching relay unit 708 has a number corresponding to the number of installations of the first to sixth plug storage ports C1 to C6. First to sixth timer relays TR1 to TR6 for switching the corresponding first to sixth relay contacts SS1 to SS6 after a predetermined time delay process are provided.

Here, the first to sixth relay contacts SS1 to SS6 are one power path specified among two power paths connected from the main plug P0 to the first to sixth plug receiving ports C1 to C6. Be intervened at any stage.

Next, a power control function of the educational multimedia system according to the present invention shown in FIG. 5 will be described with reference to the flowcharts of FIGS. 12A to 12C.

First, in step 100, the main monitor device is connected to the fifth plug storage port C5 of the first to sixth plug storage ports C1 to C6 in the power distribution controller 70 whose main plug P0 is connected to the main outlet. The power plug P5 of M is connected, and the power plug P6 of the main computer device COM is connected to the sixth plug storage port C6, and a video tape recorder, a video disc player, an audio device, and a large The first to fourth load devices S1 to S4 made up of the monitor device are connected to predetermined ports of the remaining plug storage ports C1 to C4, respectively, in a state where the first power supply plugs P1 to P4 are connected. When the power supply to the sixth plug storage ports C1 to C6 is cut off as a whole, the switch 210 provided in the body of the power distribution control device 70 in the CPU 210 of the remote key control device SK. (702) or the main power control button (PW) of the corresponding remote key control device (SK) It is determined whether or not the manual operation is performed to start the power supply (step 101).

As a result of the determination in step 101, when it is determined that the switching switch 702 is being operated to start the power supply, the priority of the power supply predetermined in the power control processor 706 of the corresponding power distribution control apparatus 70 is determined. The first to fifth timer relays TR1 to TR5 are preferentially operated among the first to sixth timer relays TR1 to TR6 by controlling the switching relay 708 based on the switching relay 708. After the commercial power supply from the main plug P0 is supplied to the first to fifth plug storage ports C1 to C5 (step 102), the sixth timer relay TR6 is finally operated so that the sixth relay contact is made. By switching (SS6), power is finally supplied to the sixth plug storage port C6 (step 103).

At this time, the power control processor 706 starts the power supply to recognize the start state of the power supply to the remote key control device (SK) via the transmission and reception interface 700 at the same time as the control of the switching relay 708. Information is transmitted, and the CPU 210 of the remote key control device SK supplies power to the main computer device COM via the first transmission / reception interface 12 as a result of receiving the power supply start information. On "control command is sent.

Accordingly, the CPU 328 of the power control card SC installed in the main computer device COM receives the power " on " control command via the transmission / reception interface 322, and thus the input / output port 330 In this case, a power "on" start command is transmitted to the microprocessor 352. As a result, the microprocessor 352 receives the standby power from the power supply module 346 in response to the start of the power supply by the power distribution control device 70, and then switches the power to the standby state. Switching control of the power switch unit 350 according to the power "on" control command from the remote key control device SK via the control card SC, "on" the operating power to the corresponding main computer device (COM) The operating power is supplied to each part of the step (step 104).

On the other hand, when the power control button PW of the remote key control device SK is operated by the button according to the determination result of step 101, the CPU 210 of the corresponding remote key control device SK is supplied with power. The control operation for the switching relay 708 is predetermined in the power distribution controller 70 as the control data for the start is transmitted to the power distribution controller 70 via the second transmission / reception interface 214. The power supply control is performed based on the priority of the logic. At the same time, the CPU 210 of the remote key control device SK issues a power-on " on " control command to the main computer device COM via the first transmission / reception interface 212 and the power control card SC. The main computer device (COM) "turns on" the power while transmitting.

Next, in step 105, the microprocessor 352 of the main computer device COM loads OS data according to a Windows or Linux-based operating system, and displays initial screen data according to the data input / output port 354. While transmitting to the display module 356, an initial screen according to an operating system based on a Windows or Linux system is displayed on the main monitor device M according to the display data processing of the screen display module 356. In addition, as the hard disk device 342 is accessed to load the power control related software program data according to the present invention, a shape similar to the shape of the remote key control device SK as shown in FIG. 10A is provided. The remote key control menu window (DSK) is configured to display the screen.

On the other hand, in step 106, the microprocessor 352 of the main computer device (COM) determines whether the registration of the plug storage port for each group according to the A and B modes is performed. If it is determined that the port has not been registered, as shown in Fig. 10B, the first to sixth button registration icons SSW1 to SSW6 are operated in the port registration menu window 84 to display the group items of A mode ( 88A) and the group item 88B in mode B, respectively, a task of registering a plurality of plug storage ports for power control is performed (step 107).

In this state, when the registration process of the plug storage port for each group according to the A and B modes is completed (YES in step 108), the first mode switching button made in the shape of the seesaw switch of the remote key control menu window (DSK) The icon (DSB) or the icon for the second mode switching button 90 on the port registration menu window 84 is operated by the keyboard 332 or the position coordinate input device 336 so that the group item 88A in the A mode is obtained. When the group item 88A of the A mode is selected, the first, third, fifth, and sixth button registration icons (SSW1, SSW3, SSW5) registered according to the A mode are determined. On the other hand, the registration display icon 86 corresponding to SSW6 lights up, while the microprocessor 352 corresponds to the first, third, fifth and sixth button registration icons SSW1, SSW3, SSW5 and SSW6. Power control to cut off and control the power to the other plug storage ports except the plug storage port The information is sent to the parameters in the power control card (SC) side of the remote controller key (SK).

Accordingly, the remote key control device SK receives the first, third, fifth, and sixth plug storage ports (1,3,5,6 plug storage ports) toward the power distribution control device 70 as a result of receiving the power control information from the main computer device COM. As a control output is generated to cut off the power supply to the remaining plug storage ports except for C1, C3, C5, and C6, the power distribution controller 70 generates the second and fourth timer relays TR2, TR4) is operated so that the relay contact is disconnected so that the power supply is cut off only for the second and fourth plug storage ports C2 and C4 (step 110).

On the other hand, according to the determination result of the step 109, the first mode switching button icon (DSB) of the remote key control menu window (DSK) or the second mode switching button icon (90) on the port registration menu window 84 If it is determined that the group item 88B in the B mode is selected by operating, the registration mark corresponding to, for example, the second, fourth, sixth button registration icons (SSW2, SSW2, SSW6) registered according to the mode A is selected. While the icon 86 is lit, the microprocessor 352 supplies power to the remaining plug storage ports except for the plug storage ports corresponding to the second, fourth and sixth button registration icons SSW2, SSW4 and SSW6. Power control information for controlling the control is transmitted to the remote key control device (SK) side via a power control card (SC).

Accordingly, as a result of receiving the power control information from the main computer device COM, the remote key control device SK receives the second, fourth, and sixth plug storage ports C2, As the control output is generated to cut off the power supply to the remaining plug storage ports except for C4 and C6, the power distribution control device 70 generates the first, third and fifth timer relays TR1, TR3, TR5) is operated to disconnect the relay contact, so that the power supply is cut off only for the first, third and fifth plug-in ports C1, C3 and C5 (step 111).

On the other hand, during the operation of the DPW, it is possible to control the power ON / OFF for the overall load regardless of the A / B mode.

Next, in step 112, the microprocessor 52 of the main computer device COM determines whether or not the initial registration settings for the plurality of software programs that require shortened execution are made. If it is determined that the registration setting is not made, as illustrated in FIG. 10C, a menu window 92 for registering a program is formed on the screen of the main monitor device M to form a hard disk device of the corresponding main computer device COM. In step 342, a process for initially registering up to nine specific software programs requiring short-cutting among the plurality of software programs stored in step 342 is executed (step 113).

In this state, when the initial registration setting process of the software program via the program registration menu window 92 is completed (YES in step 114), the first to ninth speed control buttons PB1 of the remote key control device SK. The predetermined shortcut control button is operated in -PB9 or the predetermined shortcut control button icon in the first to ninth single-axis control button icons DPB1 to DPB9 on the main monitor device M is registered. It is determined whether or not the predetermined software program is to be shortened among the plurality of software programs (step 115).

As a result of the determination, when it is determined that an operation for shortening a predetermined software program is performed, a task related to the executed program is performed by loading and executing the corresponding software program stored in the hard disk device 342. And a plurality of program menu windows 94A to 94C generated during the operation of the program are displayed on the main monitor device M as shown in FIG. 6D (step 116).

Meanwhile, in step 117, the microprocessor 352 uses a screen save function by user setting through the keyboard 332 or the position coordinate input device 336 or a screen save function automatically set based on the operating system. It is judged whether or not it is executed as the setting time elapses.

As a result of the determination, when it is determined that the screen save function is being executed, the hard disk device 342 displays a plurality of program menu windows opened on the operation of a predetermined software program displayed on the main monitor device M and the associated job data. ) Is stored in a pre-allocated storage space, and then the power switch unit 350 is switched and controlled to " off " the power of the main computer device COM (step 119).

Subsequently, the power control processor 376 of the power distribution control device 70 operates and controls the sixth timer relay TR6 based on a priority determined according to the power cutoff control from the remote key control device SK. Then, the relay contact is disconnected so that the power cutoff of the sixth plug storage port C6 side to which the power plug P6 of the main computer device COM is connected is made first (step 120).

Then, after the power is cut off to the sixth plug storage port C6 as in step 120, the first to fifth timer relays TR1 to TR5 are sequentially operated and controlled to connect each relay contact. By releasing, the power supply to the first to fifth plug storage ports C1 to C5 is sequentially blocked (step 121).

After a sequential power cut-off is made for the first to sixth plug storage ports C1 to C6 of the power distribution control device 100, the process enters a standby state for resuming another power supply (step 122). .

On the other hand, if it is determined in step 117 that the screen save function is not being executed, the power is generally cut off for the first to sixth plug storage ports C1 to C6 of the power distribution control device 70. The main power control button PW of the remote key control device SK is operated by a key or a menu window for remote key control on the main monitor device M according to the operation of the corresponding keyboard 332 or the position coordinate input device 336 ( It is determined whether or not to perform the operation of specifying the icon for the main power control button DPW installed in the DSK (step 118).

As a result of the determination, if it is determined that the operation for turning off the first to sixth plug storage ports C1 to C6 of the power distribution control device 70 is performed, the process proceeds to the step 119 and the step 119 to the step 122 The process up to.

Subsequently, in step 123, the CPU 210 of the remote key control device SK resumes the power supply to the first to sixth plug storage ports C1 to C6 of the power distribution control device 70. It is determined whether or not the main power control button PW of the keypad 202 is operated. When it is determined that the main power control button PW is operated, the second power transmission / reception connector DL2 is used as a medium. The control data for starting the power supply is transmitted to the power control processor 706 of the power distribution control device 70, the power control processor 706 based on the predetermined priority of the switching relay unit 708 As the first to fifth timer relays TR1 to TR5 are sequentially operated, their relay contacts are connected and power is supplied to the first to fifth plug storage ports C1 to C5 in sequence. Finally, the sixth timer As to the operation (TR6) of claim 6 becomes the power supply to the plug receiving port (C6) made (step 124).

Accordingly, the first to fourth load devices S1 to S4 and the main monitor device M, to which the respective power plugs P1 to P5 are connected, are connected to the first to fifth plug storage ports C1 to C5. The main computer device COM can also be supplied with power from its power supply module 46 through the sixth plug storage port C6 while the main computer device COM can perform a unique operation. In this state, standby power can be generated.

Then, the CPU 210 of the remote key control device SK transmits a power-on " on " control command to the microprocessor 352 of the main computer device COM via the first transmission / reception connector DL1. The microprocessor 352 controls switching of the power switch unit 350 while the standby power is supplied from the power supply module 346 so that the main computer device COM is powered on. (Step 125).

In this state, the microprocessor 352 loads the plurality of menu windows 94A to 94C and the related job data according to the operation of the predetermined software program stored in the hard disk device 342 according to the process of step 119. By doing so, the main monitor apparatus M reproduces the screen (step 126).

In step 127, the microprocessor 352 loads the power control software program according to the present invention as shown in FIG. 6E to display the initial screen of the remote key control menu window DSK for a predetermined software program. A plurality of menu windows 94A to 94C can be displayed on the displayed screen.

Accordingly, the main computer device COM can resume work by using a plurality of menu windows 94A to 94C for a predetermined software program displayed as an initial screen on the main monitor device M. If necessary, the multimedia operation can be performed in association with the first to fourth load devices S1 to S4 (step 128).

That is, using the plurality of menu windows 94A to 94C opened on the main monitor device M, possible software operations can be performed on the main computer device COM, as well as the main monitor device M. AV switch button (AVC) to operate the AV switch button icon (DSLT) constituting the remote key control menu window (DSK) displayed on the screen or to operate the AV switch button (SLT) of the remote key control device (SK) When a predetermined load device is selected from among the first to third load devices S1 to S3 wired to a plurality of video / audio input ports respectively installed in the above), the video / audio information according to playback of the selected load device is displayed. Selected by the switching device AVC, the video / audio playback can be performed through the fourth load device S4 according to the large monitor device.

On the other hand, the buttons SW1-SW2 on the remote key control device SK or the buttons DSW1-DSW6 on the monitor M are assigned to the video / audio constituting the corresponding multimedia system and the remote key control device. When the button SLT or the button DSLT provided on the monitor is operated, the buttons SW1-SW6 and DSW1-DSW6 have a video / audio output selection function. Output control of audio equipment is enabled.

It is a matter of course that the embodiments of the present invention made as described above can be embodied in various ways without departing from the spirit and scope of the present invention.

According to the present invention made as described above, the video / audio information from a predetermined selected video / audio device is converted into a plurality of images by integrating a plurality of video / audio devices to perform signal format conversion and signal distribution processing. As it can be simultaneously reproduced through an output device, video images from a desired video device can be simultaneously reproduced through a plurality of video output devices, and the simultaneous learning or teaching of a large number of people can be easily performed. Will have

Further, according to the present invention, the remote control of the operation of the personal computer device for the multi-outlet capable of simultaneously receiving the power plugs of the load devices as the plurality of multimedia devices including the personal main computer device and simultaneously supplying power. It is possible to control whether the main computer device and other load devices are powered or powered off based on the priority of power supply and power cut off by a remote key control device. In addition, the power efficiency during initial start-up and shutdown of a large number of subordinate loads is significantly improved, and the surge current and noise are prevented. To provide users with improved convenience You have an advantage.

Claims (1)

R / G / B signal processing for receiving digital R / G / B signals from R / G / B signal generating means for generating video signals of moving and still images as R / G / B signals and performing digital processing and noise removing processing Sudan, In addition to controlling the digital processing and the noise removing processing of the R / G / B signal to the R / G / B signal processing means in synchronization with the synchronization signal SY provided with the R / G / B signal. Control means for controlling a conversion processing state of the R / G / B signal into a composite video signal; Encoding means for encoding and converting an R / G / B signal through the R / G / B signal processing means into a composite video signal under the control of the control means; Selection input means for performing selection input for selectively reproducing only a predetermined video / audio signal with respect to video / audio signals input from a plurality of video / audio playback apparatuses; In response to the selection input state by the selection input means, a specific video / selected among the video signal from the R / G / B signal encoded by the encoding means and the video / audio signals supplied from a plurality of external video / audio playback devices Switching selecting means for switching to form a signal path of an audio signal, Amplifying means for amplifying and outputting a specific video / audio signal supplied through the switching selecting means; And a plurality of video display means for simultaneously reproducing a specific video / audio signal amplified by the amplifying means, respectively.