KR20100018791A - Integrated control system for multimedia device - Google Patents

Abstract

PURPOSE: An integrated control system for a multimedia device is provided to integrate control units for multiple AV devices including TV and to operate the AV devices in the designated order. CONSTITUTION: An audio multiplexer(40) outputs audio only from selected audio/video output apparatuses. A mixer(50) outputs the sound outputted from the audio multiplexer or the sound inputted through a microphone. An amplifier(60) amplifies the sound outputted from the mixer. A TV tuner(70) outputs image and sound of a channel selected in a TV channel selector to a video multiplexer and the audio multiplexer. A divider(20) selectively outputs the signal outputted from a PC among the audio/video output apparatuses.

Description

Integrated control device for multimedia equipment {INTEGRATED CONTROL SYSTEM FOR MULTIMEDIA DEVICE}

The present invention relates to a multimedia device integrated control device, connected to an electronic device such as a projector, a video device, an audio device, and a TV installed in a place using an image and sound integrated control device for a multimedia device that can control the electronic device integrally It is about.

In general, with the development of the industrial society, as audio / visual equipments develop, multimedia classrooms for video lectures in schools and briefing rooms for introducing certain contents to others, such as business presentations, can be increased. It is a trend.

In particular, with the rapid development of image media technology, multimedia classrooms are increasingly equipped with a variety of multimedia devices such as beam projectors, DVD players, and educational computers. Various studies are underway to develop.

Here, the development of an integrated control system for controlling various types of multimedia devices in an integrated manner is currently actively progressed. For example, in the Korean Utility Model Registration No. 343599, a number of AV (Audio-Visual) devices, such as an audio image output device, are provided. A central sound image control system that associates related devices into one system and controls them from a central control unit, and sets an operation sequence of each AV related device in advance so that AV related devices operate in a certain order by an operation signal of a specific selection button. (Central Audio and Visual Control System).

Conventional technologies, including the central sound image control system described above, are mainly composed of serial control equipment that controls specific equipment in a predetermined order. Under such a system, a control system suitable for each of various kinds of multimedia classrooms should be provided. To do this, the internal algorithm and program of the main control device must be developed separately for each environment.

In addition, the sound devices and video output devices of the existing multimedia classrooms have been operated independently from each other by separately installed control switches.When the use of educational materials is required, the sound image output devices to be used are connected to the input terminal of the projector. It is connected and used, and microphone and speaker are used independently.

Therefore, in order to operate each AV-related device, since a person moves and manipulates each control panel during a meeting or training, it takes a lot of time, and thus, the atmosphere of the surrounding meeting and educational environment. Can be distracting.

In addition, the control system according to the related art cannot maintain a constant output state due to a decrease in screen brightness when a dual VGA (Video Graphics Array) signal is input, and when a microphone signal is input, noise due to resonance is generated to provide a learning atmosphere. There was a problem such as acting as a disturbing factor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and by integrating each control means for receiving and controlling a plurality of AV devices and external devices, including a TV, into a single system, integrated control capable of integrated multimedia devices It is an object to provide a device.

Another object of the present invention is to provide a multimedia device integrated control device that can operate the AV device in a predetermined operation sequence by the operation signal output by selecting a specific button by presetting the operation sequence of the AV device including a TV in advance. There is.

 In order to achieve the above object, the present invention provides an input device selection unit for receiving a user's input to select one of a plurality of audio / video output devices, to output an image and sound to a projector and a speaker, the input device selection unit A display unit for inputting data for the selected sound / video output device, an audio volume control unit for adjusting the volume of sound output from the speaker, a remote control receiver unit for wirelessly receiving user input data, and a plurality of sound / A user input device including a TV channel selector configured to select a channel of a TV among the image output apparatuses and a power supply unit for applying power to each component; A video multiplexer for outputting only an image of the selected sound / video output device; An audio multiplexer for outputting only sound of the selected sound / video output device; A mixer configured to output one sound from a sound output from the audio multiplexer and a microphone input sound; An amplifier for amplifying the sound output from the mixer; A TV tuner for outputting an image and sound of a channel selected by the TV channel selector to the video multiplexer and an audio multiplexer; A separator provided to selectively output a signal output from a PC among the audio / video output devices; It is connected to the interface includes a microcomputer provided to control each component.

And, the microcomputer is connected to the interface with the lighting, when the user presses the power supply short, the on / off control of the lighting, projector, speaker, and when the user presses the power supply for a long time is applied to each component And outputting a control signal for interrupting or supplying power.

The display unit may be configured to output selectable input device data to a user whenever the input device selection unit is operated, and to output a TV channel number when the TV is selected.

In addition, the remote control is provided in the same configuration as the user input, characterized in that made to transmit the data input to the remote control to the microcomputer through the remote control receiver.

As described above, the present invention having the configuration as described above can be used by simultaneously connecting a PC, a TV, an audio output amplifier, and an external device (DVD player, camcorder, picture device, etc.) as an AV device integrated controller. The control panel that can be operated is integrated in one place, and it can be operated by using a remote controller wirelessly, so that it is possible to remove the distracting elements during multimedia lectures.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of input and output of a multimedia device integrated control apparatus according to the present invention. As shown in FIG. 1, the integrated multimedia apparatus 1 is connected to various AV related devices.

The multimedia device integrated control device 1 is connected to a video output device such as a video, a projector, a video monitor, a lighting means, a DVD, a camera, a physical imager, a sound output device such as a speaker or a headset, and a desktop or a laptop. It is also connected to a PC such as a computer, and one or more audio / video output devices may be used.

Here, the projector is a device that receives the image from the integrated multimedia device (1) and illuminates the image on the screen, when the projector is supported by a shelf installed to be moved up and down inside the ceiling of the front of the video conference room when used by the projector motor It comes down to the ceiling.

In addition, the video monitor is a monitor which displays the image output from the integrated multimedia device 1 so as to be confirmed beforehand on the screen, and a general monitor may be used, and the monitor is next to the integrated multimedia device 1. Can be installed on

In addition, the screen is installed in the ceiling of the front of the video conference room, and the screen is lowered by the size of the screen output from the ceiling by the operation of the screen motor.

In addition, a plurality of speakers are installed in a predetermined place of the video conference room, and receives and outputs the sound output from the integrated control device (1).

In addition, the lighting means is formed of a plurality of lights installed on the ceiling of the video conference room, it is made to operate independently according to the installed position.

Finally, the multimedia device integrated control device 1 is further provided with a user input device 80 which is a control panel for selecting and controlling the sound output device and the image output device, through which the user can wirelessly adjust the desired output, Alternatively, the user input unit 80 may perform an input for directly adjusting the output.

2 is a block diagram of an integrated multimedia apparatus for controlling a multimedia device according to the present invention, which will be described with reference to FIG. As shown in FIG. 1 and FIG. 2, the multimedia device integrated control apparatus 1 includes a microcomputer 10, a splitter 20, a video multiplexer 30, an audio multiplexer 40, an audio multiplexer 40. A mixer 50, an amplifier 60, a TV tuner 70, and a user input device 80 are included.

When the signal from the user input device 80 is input, the multimedia device integrated control apparatus 1 according to the present invention outputs a control signal for selecting various sound / video output devices from the microcomputer 10 and outputs the control signal of the microcomputer 10. Video, speaker, PC output, headset output, etc. are controlled in accordance with the control signal, each of the audio / video output devices are driven in a predetermined operation sequence set in the microcomputer (10).

Here, the microcomputer 10 is a memory (not shown) for storing the operation order of the various audio / video output devices connected to the integrated multimedia device control device 1, a control unit (not shown) to output a signal to control the components ), An interface (not shown) that is a communication line with various audio / video output devices.

Accordingly, the microcomputer 10 transmits the operation sequence stored in the memory to the control unit, and the control unit controls the operation while transmitting and receiving various audio / video output devices and data in the interface according to the operation sequence.

In addition, the microcomputer 10 receives an operation signal of the user input device 80, which is a control panel, through an interface, and receives operation sequence information of an audio / video output device from a memory in response to the operation signal.

In addition, the microcomputer 10 may automatically control the operation of the audio / video output device by transmitting data on the received operation sequence to the controller of each audio / video output device through the interface.

Here, the memory of the microcomputer 10 stores information about the operation such as the operation sequence and the operation time interval of the audio / video output device, the operation sequence information is input and stored through an interface from an external computer, and various environments As such, the operation sequence information is preferably made to be changed or updated.

In addition, the operation sequence information includes information required for operating the audio / video output device in the following order: screen lowering-> projector lowering-> lighting out or adjusting brightness of the lighting means-> operation of the projector-> video output of the audio / video output device. It will be included.

In addition, the operation order information stores initial state information of the audio / video output device, and when the use of the audio / video output device is terminated, the audio / video device may be returned to the state before use by the control of the microcomputer 10. Various variables are initialized to reset.

At this time, the interface receives an input signal of the user input device 80, which is a control panel, controls the operation of the lighting means, the screen motor, and the projector motor according to the user's operation, and is then connected to the speaker and the projector to connect the microcomputer ( It becomes a passage for transmitting the operation signal of 10).

The interface may transmit a signal transmitted to each controller using serial communication (RS-232C), and a transmission scheme may be variously applied.

In addition, the interface is connected to a sound input terminal (AV input X 2) and a sound output terminal (speaker output) connected to the speaker, the sound is input, according to the input signal of the user input device 80 received from the microcomputer 10 It provides a data path for adjusting the volume of sound.

That is, according to the input signal of the user input device 80 input to the microcomputer 10, it is driven in the above operation sequence and at the same time reflects the user's input to control various outputs.

The separator 20 is provided for switching whether to output a PC input signal to a first PC or a second PC, and the video multiplexer 30 receives a TV input and an audio / video input. It is provided to output the screen to the screen through.

Accordingly, the video multiplexer 30 is composed of a data selection logic circuit having a function of selecting one of two signals, TV input or audio / video input, and outputting it to an output circuit.

In addition, the audio multiplexer 40 is provided to receive a PC audio input, TV input, audio / video input, and output one of the input signal to the speaker, while the microphone input is a signal output from the audio multiplexer 40 And are mixed in the mixer 50 and amplified through the amplifier 60 to be delivered to the speaker or headset through the speaker or headset output terminal.

3 is a view showing a user input device of the integrated multimedia device control apparatus according to the present invention. As shown in FIG. 3, the user input device 80, which is a control panel, includes an audio volume controller 81, a TV channel selector 83, a remote controller light receiver 85, a power supply 87, and an input source selector SOURCE. Is provided.

Here, the audio volume control unit 81 is provided with a main volume MASTER, a microphone volume MIC, a left speaker volume L, and a right speaker volume R, and the main volume MASTER is output through the speaker. It is provided to increase or decrease the overall sound.

In addition, the microphone volume MIC is provided to increase or decrease only the sound input from the microphone, not the sound input through the sound output device, and the left speaker volume L and the right speaker volume R are provided on the left side of the speaker or It is provided to increase or decrease the sound output from the speaker provided on the right side.

In addition, the TV channel selector 83 is provided to select a channel of the TV input to the integrated multimedia device 1, TV CH + or TV CH-button consisting of the TV set by default when the TV CH + If the channel is increased by + 1 and TV CH-is set, the default TV channel is lowered by-1.

In addition, the input source selector (SOURCE), which is a button for selecting an input source, is toggled every time the button is pressed, and then in the order of PC-> Video / Audio Output Device-> Video / Audio Output Device-> TV-> PC. Is changed.

The character is output to the display unit installed in the center, and the display unit is preferably composed of 3 DIGIT FND (7-Segment Display).

Therefore, when the user presses the SOURCE button, PC-> AV1-> AV2-> TV-> PC is displayed on the FND, and when the TV is selected, the channel number of the TV is output. It is also preferable.

When the user wants to use the multimedia device integrated control device 1 according to the present invention, the power supply unit 87 is applied to power the multimedia device integrated control device 1 so that each component can be activated while being initialized. Done.

Here, when the power supply 87 is briefly pressed when the multimedia device integrated control device 1 is in use, the projector and the like are stopped and the screen and the projector are raised above the ceiling, and each light is normally turned on and is pressed for a long time. In this case, it is provided to cut off all the power applied to each component of the multimedia device integrated control device (1).

In addition, when the projector is stopped or turned on by a user input input to the power supply 87, the microcomputer 10 receives the data on / off of the projector through the interface, and thus the lighting means used in the video conference room. It takes control.

That is, when the projector is in the ON state, the lighting provided in the video conference room should be turned off, and when the projector is in the OFF state, the illumination provided in the video conference room should be kept in the ON state, accordingly, the microcomputer 10 ) To control the lighting means.

Preferably, it is necessary to control the operation or brightness of the light differently according to the location where the light is installed. When illuminating the video material on the screen, the light installed in front of the video conference room is dark or off, and the light at the rear or side is slightly Brighter adjustments should be made, and the central lighting should also be brighter as it goes backwards.

Therefore, the microcomputer 10 outputs a control signal such that the above control is performed through the interface with the lighting means, and turns on or off or adjusts the brightness according to the position where the lighting is installed.

In addition, the microcomputer 10 is configured to operate the screen motor for adjusting the up and down movement of the screen and the projector motor for adjusting the up and down movement of the projector according to the projector on / off signal input to the power supply 87. It controls the movement of the screen and the projector according to the input of the power supply 87.

In addition, the remote control light receiver 85 is configured to wirelessly input the user's input through the remote control light receiver 85 when carrying a remote control which is a control panel such as the user input device 80.

In addition, the LED (not shown) indicating the operating state of each component of the user input device 80 is installed at each lower portion, it is also preferable that the LED is turned on when the button is operated so that the state of the operation button can be known. .

4 is a diagram illustrating a multimedia device integrated control apparatus connected to an external device according to the present invention. Referring to Figure 4 describes the operation of the multimedia device integrated control device according to the present invention.

Here, the integrated control device for multimedia equipment is installed indoors or a separate room is installed inside the screen, the screen is installed in the front of the room, such as a classroom, the projector is installed at a suitable distance to illuminate the image on the screen.

The screen and the projector are initially positioned on the ceiling, and in use, are lowered from the ceiling by the operation of the screen motor and the projector motor, and the screen is lowered down by the size of the video output, and the projector is also displayed on the screen. It will come down to the extent that you can print.

In addition, the speaker may be installed in a number of predetermined locations in the room, the lighting means to control the lights provided by the front, both sides, the center of the room, the central light is divided into the front light, the center light and the back light. Each independently controlled by the lighting means.

In addition, the memory of the microcomputer contains a program that can operate the audio / video output device in the order of screen down-> projector down-> lighting brightness-> projector operation.

Here, the brightness of the lighting controlled by the lighting means may have various stages, and may be variously adjusted according to the position where the lighting is installed.

The driving of the integrated multimedia apparatus control device installed as described above will be described.

First, when the power button of the user input device, which is a control panel, is pressed for a long time, power is applied to various components, and various components are activated to be driven.

When one of the audio / video output devices is selected by the input device selector SOURCE, the microcomputer receives operation sequence information corresponding to the selected input device from the memory.

In addition, the received data is transmitted to each control unit of the audio / video output device through the interface, and the microcomputer outputs a control signal to prepare the audio / video output device to be output to the screen through the projector by operating the projector and the screen. .

Then, according to the order previously stored in the memory, the lighting means controls to turn on, turn off or turn off each of the lights installed in the room, and adjust the brightness step by step according to the position of the lighting in the lighting means.

Next, the microcomputer transmits an operation signal to the projector, and the projector receives an image of the image output apparatus and outputs the image to the screen.

In this case, the image output apparatus may be various video-related apparatuses, and whenever the input apparatus selection unit is pressed, signals of each input apparatus connected to the integrated multimedia apparatus control apparatus may be activated and output to the screen.

In addition, the sound output along with the image may be a TV, PC audio, a microphone, audio of an image output device, and the like. The sounds may be controlled and output through a speaker.

At this time, if the power unit is shortly pressed, the use of the audio / video output device may be stopped for a while, and if the power unit is long pressed, all output related operations may be stopped by cutting off all powers applied to each component of the integrated multimedia device. If the user presses the power supply for a long time, all the user inputs are finished, and all the variables input by the user are initialized.

5 is a diagram illustrating an input terminal of a multimedia device integrated control apparatus according to an embodiment of the present invention. As shown in Figure 5, the signal input to the integrated multimedia device control device is input through the VGA, video, audio, PC speakers, microphone input terminal.

VGA input of the input signal using a mini jack of 1 channel 3.5 mm, AV (audio / video output device) input is composed of 2 channels, the video signal is input to the left, the audio signal is in the middle, right Is entered.

In addition, the multimedia device integrated control apparatus according to the present invention can receive a TV RF input, is provided to receive a TV RF frequency signal of 47-870MHz band.

6 is a diagram illustrating an output terminal of an integrated control apparatus for multimedia apparatus according to an embodiment of the present invention. As shown in Figure 6, the signal output from the integrated multimedia device control device is output through the video, speaker, VGA (2 terminals), the headset terminal.

Among the above output signals, video output is output through 1 channel RCA connector, VGA output is output through D-SUB 15Pin equipped with line driving circuit, and audio output is 1 channel when headset is connected, 3.5mm mini It is output to a jack or to a speaker provided in the room.

When the integrated control device having such an input and an output terminal selects an output signal, only the video 1 channel and the audio 1 channel can be selected, and the microphone signal is mixed with the 1 channel audio signal and output. Designed to have a maximum output of 15W.

Four dial-type switches control audio and microphone volume independently, and an OSD keypad is designed to control TV channels. Three digital FNDs are provided to output TV channels. Indicates input and red indicates power on / off.

7 is a diagram illustrating a multimedia device integrated control device manufactured according to an embodiment of the present invention. As shown in FIG. 7, the integrated multimedia apparatus control apparatus according to the present invention has a design specification as shown in Table 1.

Input terminal PC  RGB 15Pin × 1, Audio × 1 TV  RF (75 Hz) × 1 (NTSC, UHF, VHF) A / V  Composite × 2 (Video × 2, Audio × 2), Mic × 1 Output terminal PC  RGB 15Pin × 2 A / V  Video × 1, Speaker × 2, (Push SW, 3.5mm Jack) Control  Signal Select × 4 (PC, TV, AV1, AV2), TV Channel Select U / D, Audio Volume × 4 (Mic, Master, L / R) AMP output  Max 30W Stereo size  246 × 96 × 44 (fixed bracket integrated type) 216 × 96 × 44 (excluding fixed bracket BOX size) power  DC 12V 1.5A

8 is a diagram illustrating a user input device of an integrated device for controlling multimedia equipment manufactured according to an embodiment of the present invention. As shown in FIG. 8, the integrated device for controlling multimedia equipment according to the present invention has a user input device which is a control panel for adjusting the overall volume, the microphone volume, and the left / right speaker volume (①), and up or down the TV channel. Also equipped with buttons (②, ③) that can be adjusted, and an input device selection button (④), each time the button is pressed, PC → AV1 → AV2 → CATV (000) → AIR TV (A00) → PC-like output To display via FND.

In addition, the power button (⑤) is designed to be divided into a function of turning on / off the power and shortly and long pressing the projector on / off or power on / off, in the embodiment of the present invention, the state of pressing the power button It is designed to be reset when the power cord is connected.

9 is a view showing the finished product and the external case of the integrated multimedia device control apparatus according to an embodiment of the present invention. As shown in FIG. 9, the exterior case of the integrated multimedia device control apparatus is designed in consideration of user convenience such as mounting and miniaturization.

The exterior case was made of metal, and powder coating was performed on the outside of the metal in order to prevent scratching of the metal.

Table 2 below shows the qualitative and quantitative goals of the present invention.

Qualitative Goal Quantitative goals  o Input Signal-. 1ch VGA input & 3.5mm mini-jack-. 2ch AV Input (Video, Audio Left / Right)-. TV RF Input (coaxial 47 ~ 870MHz)-. 1ch Mic Input o Output Signal-. 1ch Selected Video Output (RCA Connector)-. 2ch VGA Output (D-SUB 15Pin With Line Driving Circuit: Clone Image)-. 1ch Selected Audio Output (3.5mm Mini-Jack Output or Speaker Output)  -. Output Signal Selection (Video 1ch & Audio 1ch)-. MIC Signal Mix to Audio Output-. 15W Audio Output Max-. Audio & MIC Volume Control Independently by 4 Dial Type Switch-. TV Channel control by OSD Keypad-. TV Channel Display by 3 Digit FND-. Selected Input Indicator (LED Green)-. Power On / Off Key & Indicator (LED Red)

Multimedia device integrated control device according to the present invention is a sound / video output device (AV device) integrated controller, PC monitor distribution, in-campus cable broadcasting and TV channel reception, sound output amplifier, external devices (DVD player, camcorder, picture display, etc.) ) Audio / video output device can be connected and used.

In particular, the integrated control device for multimedia devices is a product that can be conveniently connected to a sound / video output device, a PC, and a TV when using a projector in a multimedia classroom or a conference room. It can be used in conjunction with, so you can concentrate on presentations and lectures.

In the above described exemplary embodiments of the present invention by way of example, the scope of the present invention is not limited only to this specific embodiment, and those skilled in the art within the scope of the claims of the present invention Changes may be made as appropriate.

1 is a conceptual diagram of the input, output of the multimedia device integrated control apparatus according to the present invention.

Figure 2 is a block diagram of a multimedia device integrated control apparatus according to the present invention.

Figure 3 is a view showing a user input device of the integrated multimedia device control apparatus according to the present invention.

4 is a diagram illustrating a multimedia device integrated control device connected to an external device according to the present invention;

5 is a view showing an input terminal of the integrated multimedia device control apparatus according to an embodiment of the present invention;

6 is a view showing an output terminal of the integrated multimedia device control apparatus according to an embodiment of the present invention;

7 is a diagram showing an integrated device for controlling multimedia equipment manufactured according to an embodiment of the present invention.

8 is a diagram illustrating a user input device of an integrated device for controlling multimedia equipment manufactured according to an embodiment of the present invention.

9 is a view showing the finished product and the external case of the integrated multimedia device control apparatus according to an embodiment of the present invention;

<Brief description of reference numerals for the main parts of the drawings>

1: Integrated control device for multimedia equipment

10: microcomputer 20: separator

30: Video Multiplexer 40: Audio Multiplexer

50: mixer 60: amplifier

70: TV tuner 80: user input device

81: audio volume control unit 83: TV channel selection unit

85: remote control receiver 87: power supply

Claims (4)

An input device selection unit that receives a user's input to select one of a plurality of audio / video output devices so as to output an image and a sound to a projector and a speaker; data about the selected audio / video output device input to the input device selection unit; A display unit for outputting the audio volume control unit for adjusting the volume of the sound output to the speaker, A remote control light receiving unit provided to wirelessly receive the user input data, A plurality of audio / video output device is provided to select the channel of the TV A user input including a TV channel selector and a power supply for supplying power to each component; A video multiplexer for outputting only an image of the selected sound / video output device; An audio multiplexer for outputting only sound of the selected sound / video output device; A mixer configured to output one sound from a sound output from the audio multiplexer and a microphone input sound; An amplifier for amplifying the sound output from the mixer; A TV tuner for outputting an image and sound of a channel selected by the TV channel selector to the video multiplexer and an audio multiplexer; A separator provided to selectively output a signal output from a PC among the audio / video output devices; Microcomputer connected to the interface and provided to control each component Multimedia device integrated control device comprising a. The method according to claim 1, The microcomputer is connected to an interface with lighting, and when the user presses the power unit briefly, the microcomputer controls the on / off of the lighting, the projector, and the speaker. Multimedia device integrated control device, characterized in that for outputting a control signal to cut or supply. The method according to claim 2, And the display unit is configured to output selectable input device data to a user whenever the input device selection unit is operated and to output a TV channel number when the TV is selected. The method according to claim 3, The remote control is provided in the same configuration as the user input, the multimedia device integrated control device, characterized in that for transmitting the data input to the remote control to the microcomputer through the remote control receiver.

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