KR200342912Y1 - Electromotive screen apparatus including control function - Google Patents

Abstract

The present invention relates to an electric screen for displaying an image, and more particularly to an electric screen device that can control the electric screen and the projector.

The present invention includes a motorized screen for displaying an image output from the projector, and a controller that is integrally formed with the motorized screen and controls the motorized screen and the projector, wherein the controller includes:

A keypad including a first key button unit for operating the electric screen and a second key button unit for operating the projector, a display unit for displaying a function corresponding to an operation command output from the keypad, and the first key button unit And a microprocessor including a motorized screen controller for controlling an electric screen by processing an operation command input from the projector, and a projector controller for remotely controlling the projector by processing an operation command input from the second key button unit.

Description

Electric screen device with control function {Electromotive screen apparatus including control function}

The present invention relates to an electric screen for displaying an image, and more particularly to an electric screen device that can control the electric screen and the projector.

As IT technology advances, lectures at universities and presentations at companies are being made through contents or videos using the Internet. One of the main devices used for this video lecture is the projector. A projector is a device that displays an image enlarged through a lens by receiving video signals from various video devices such as a TV, a VCR, a DVD player, a PC, and a camcorder. Projectors are used to watch movies and TV as well as lectures and briefings. The screen displaying the image projected from the projector includes an electric screen which automatically adjusts the screen up and down by a motor.

1 is a view showing the video lecture apparatus including a conventional electric screen. As shown in the figure, the user can up or down the motorized screen 10 driven by the switch 14. In addition, the user may turn on / off the power of the projector 12 by operating the portable remote controller 16 and set an image device (computer, video, etc.) connected by wire or wirelessly (not shown). The image output from the can be projected on the electric screen (10). As described above, the electric screen 10 is provided with a switch 14 so that the user can control the electric screen 10 with the switch 14. However, in order for the user to control the projector 12, a separate portable remote controller 16 must be used and it is portable so that there is a problem of loss or theft.

In order to eliminate the inconvenience of separately operating the electric screen and the projector of the above problems, a controller for integrated control has been developed. However, projectors use different control signal schemes, that is, different control protocols, depending on the manufacturer. Therefore, when the manufacturer replaces with another projector, the development of software for changing the control protocol of the integrated controller is required, resulting in a development cost.

The present invention is to solve this problem, and to provide a controller that can manage the electric screen and projector integrally, and to prevent the loss and theft of the controller.

Furthermore, another object of the present invention is to enable remote control of an electric screen and a projector through a terminal such as a PC.

Furthermore, another object of the present invention is to allow the controller to control a projector with a different control method.

1 is a view showing a video lecture apparatus including a conventional electric screen.

Figure 2 is a block diagram schematically showing an electric screen device according to an embodiment of the present invention.

3 is a view showing a controller according to an embodiment of the present invention.

4 is a diagram illustrating a motorized screen and a projector control screen displayed on a computer monitor according to an embodiment of the present invention.

5 is a diagram illustrating a process of setting a projector control protocol of a controller according to an embodiment of the present invention.

The electric screen device according to an aspect of the present invention for achieving the above object provides a controller for integrally controlling the electric screen and the projector, such that the controller is made integral with the electric screen to prevent loss and theft.

According to another aspect of the present invention, a motorized screen device is connected to a computer on which a controller control program is mounted, so that a user may remotely control the electric screen and the projector indirectly through a controller by operating a computer.

According to another aspect of the present invention, a motorized screen device may control a projector by receiving a control protocol of a projector to be controlled from a computer in which a different control protocol is stored for each projector and changing the setting to the received protocol. have.

Aspects of the present invention described above will become more apparent through preferred embodiments described with reference to the accompanying drawings. Hereinafter, the present invention will be described in detail to enable those skilled in the art to easily understand and reproduce the present invention.

2 is a schematic block diagram of an electric screen device according to an embodiment of the present invention. As shown, the controller 200 is formed integrally with the electric screen 30 and the electric screen 30 to display the image output from the projector 40, and controls the electric screen 30 and the projector 40 (200). And a keypad 110 including a first key button part 110a for operating the electric screen 30 and a second key button part 110b for operating the projector 40. A display unit 120 displaying a function corresponding to an operation command output from the keypad 110;

The motorized screen control unit 160a controls the electric screen 30 by processing an operation command input from the first key button unit 110a, and an operation command input from the second key button unit 110b to process the projector ( And a microprocessor 160 that includes a projector controller 160b for remotely controlling 40.

The electric screen 30 is screened down by the motor operation, and displays an image on the screen. The projector 40 is a beam projector, for example, which filters an electric video signal output from an image device (TV, VCR, DVD Player, PC, camcorder) (not shown), filters, projection lenses, and reflection mirrors. Through the processing to be enlarged projection on the electric screen (30). Since the projector 40 receives and processes an image signal from an image device, a detailed description thereof will be omitted.

The controller 200 is a device that integrally controls the electric screen 30 and the projector 40, and is integrally formed with the electric screen 30. The controller 200 includes a keypad 110, a display 120, a memory 130, a first communication interface 140, and a microprocessor 160. The keypad 110 includes a first key button part 110a and a second key button part 110b. The first key button unit 110a is composed of push buttons for operating the electric screen 30, and the user manipulates the first key button unit 110a to raise or lower the electric screen 30, or Can be stopped in position.

The second key button unit 110b is composed of push buttons for operating the projector 40. Accordingly, the user may operate the second key button unit 110b to turn on or off the projector 40. In addition, the user may operate the second key button unit 110b to process an image signal input from a specific image device (computer or video) among image devices connected to the projector 40. That is, when the video is connected to the corresponding terminal of the projector 40, the user can operate the second key button unit 110b to select the video, thereby processing the image signal input from the video. The display unit 120 is preferably a liquid crystal display (LCD), and displays a function (for example, powering on the projector 40) that the button means when the user presses a button of the keypad 110.

The microprocessor 160 includes a motorized screen controller 160a and a projector controller 160b. The electric screen controller 160a reads and outputs control data corresponding to a command input according to a user's manipulation of the first key button unit 110a from the memory 130. The output control data is input to a motor driving circuit (not shown) for driving the motor of the electric screen 30. The motor driving circuit receives the control data and outputs a signal for forward or reverse rotation of the motor or a signal for stopping rotation of the motor. Therefore, the electric screen 30 is up or down or stopped by the operation of the motor.

The projector controller 160b reads and outputs control data corresponding to a command input according to a user's manipulation of the second key button unit 110b from the memory 130. The output control data is signal-converted (not shown) for transmission, and transmitted to the projector 40 through the first communication interface unit 140. The first communication interface unit 140 may be, for example, a serial transmission method such as RS-232C, a wired communication of a parallel transmission method, or a wireless communication interface such as RF or IrDA.

3 is a view showing a controller 200 according to an embodiment of the present invention. As shown, the LCD is provided on one side, and the right side is provided with buttons for operating the electric screen 30 such as UP, DOWN, and STOP. In addition, there are buttons for controlling the projector 40, such as a computer, a video button, and the like, which can set the power of the projector 40 to be turned on, off, and connected to an image device.

For example, when the user selects the video button provided in the controller 200 when the projector 40 is connected to a plurality of video devices, the projector 40 processes an image signal input from the video to display an electric screen ( 30) to project the image. However, even if the projector 40 is physically connected to another video device (for example, DVD player), if the connection setting is not made, the video signal output from the DVD player is not projected on the electric screen 30.

The controller 200 may be provided with a lecture start / end function button as shown. When the lecture start / end function button is pressed by the user once, the electric screen 30 is automatically lowered and the power of the projector 40 is turned on, and when it is pressed again, the electric screen 30 is automatically The projector 40 is turned off. That is, the user may prepare the lecture with only one button operation without having to operate the controller 200 several times to perform the lecture.

According to an additional aspect of the present invention, the controller 200 receives a signal from the computer 120 to control the operation of the device of the electric screen 30 or the projector 40. The computer (PC) 120 has a built-in program for controlling the controller 200 basically. The user may install the control program on the computer 120 using a CD in which the controller control program provided with the controller 200 is stored by the corresponding manufacturer. Or you can download it from the manufacturer's site and install it on your PC (120).

4 is a diagram illustrating a motorized screen and a projector control screen displayed on a PC 120 monitor according to an embodiment of the present invention. When the user clicks an icon for controlling the electric screen 30 or the projector 40 by using a mouse such as directly operating the controller 200, a corresponding signal is transmitted to the controller 200. The controller 200 receives a signal through the second communication interface unit 150 and controls the electric screen 30 or the projector 40 as described above. That is, the user may indirectly manipulate the controller 200 through the PC 120 to control the electric screen 30 and the projector 40. Here, the second communication interface unit 150 may be connected to the PC 120. The interface device for performing communication is preferably an RS-232C port. In addition, the PC 120 may also be connected to the projector 40 to provide an image signal.

According to an additional aspect of the present invention, the microprocessor 160 of the controller 200 further includes a protocol setting unit 160c for changing the protocol setting to a control protocol of a specific projector received from the PC 120. The PC 120 stores control protocol information corresponding to projector information for each manufacturer. Such information data is preferably stored together in the above-described controller control program storage CD, and thus is installed together in the PC 120. It may also be downloaded from the site as described above.

If the currently used projector is replaced with another projector by the manufacturer, since the control method of the manufacturer-specific (or product-specific) projector is different, the controller 200 cannot control the replaced projector. Therefore, the controller 200 receives the projector control protocol for each manufacturer or product stored in the PC 120 through the second interface unit 150. The protocol setting unit 160c sets and changes the communication protocol with the projector replaced with the received control protocol. That is, the protocol setting unit 160c matches the function buttons for controlling the ON, OFF, and video device connection setting of the projector, and stores the protocol values in the memory 130. The memory 130 may be, for example, a flash memory capable of writing and erasing data.

5 is a diagram illustrating a process of setting a projector control protocol of the controller 200 according to an embodiment of the present invention. First, the user selects a designated button (IN button shown in the figure) for protocol setting or setting change included in the controller 200. Then, a screen related to protocol setting is displayed on the LCD window of the controller 200. Then, using the mouse, the PC 120 selects a communication port and a transmission speed with the controller 200, and selects a projector classified by company. Next, the user clicks the ON, OFF, RGB1, RGB2, VIDEO icons. Then, the PC 120 transmits the control protocol of the function indicated by each clicked icon to the controller 200. The RGB1, RGB2, and VIDEO icons are icons that match the control protocol for establishing video device connection.

The protocol setting unit 160c receives the control protocol transmitted from the PC 120 through the second communication interface unit 150, changes the protocol setting for the corresponding function, and stores the control protocol in the memory 130. That is, the protocol setting unit 160c changes the protocol stored in the memory 130 into a control protocol received from the PC 120 to control the existing projector ON, OFF, etc., and stores it in the memory 130. . The user presses a check button (CHK button shown in the figure) for checking the protocol input to the controller 200, and then presses the ON, OFF, computer, and video buttons. Then, the respective command protocols for the input values are displayed in the input data window on the PC 120 monitor, so that the user can know that the projector control protocol setting of the controller 200 is normally performed.

As described above, the present invention provides a controller that can integrally control the electric screen and the projector, and prevents the loss and theft of the controller.

In addition, a terminal such as a PC can be used to remotely control the electric screen and the projector indirectly.

In addition, by simply changing the controller control protocol of the controller, it is possible to control the projector with different control methods.

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined only by the attached utility model registration claims.

Claims (3)

A motorized screen displaying an image output from the projector; And a controller which is formed integrally with the electric screen and controls the electric screen and the projector. A keypad including a first key button unit for operating the electric screen and a second key button unit for operating the projector; A display unit which displays a function corresponding to an operation command output from the keypad; And a motorized screen controller for controlling the electric screen by processing an operation command input from the first key button unit, and a projector controller for remotely controlling the projector by processing an operation command input from the second key button unit. Electric screen device with a control function, characterized in that it comprises a microprocessor. The system of claim 1, wherein the controller is: The electric screen device with a control function, characterized in that for receiving a signal from a computer to control the operation of the device of the electric screen or the projector. The method of claim 2, wherein the microprocessor is: And a protocol setting unit for changing a protocol setting to a control protocol of a specific projector received from the computer.