KR101530476B1 - Electronic board system for using pir sensor - Google Patents

Abstract

The present invention relates to an electronic board system using an infrared sensor.
The present invention relates to an electronic whiteboard system using an infrared sensor, in which an infrared ray oscillation signal is generated according to a movement to display an underlined sketch by writing on data displayed in an image, thereby transmitting and receiving information necessary for distance and position measurement determination; And a controller for sensing an infrared ray oscillation signal generated from the infrared pen on the corner side and determining arrival time and distance information of the infrared ray oscillation signal from the sensed signal, A screen board including a detection sensor for transmitting information; A projector for projecting an image on the screen board according to a video signal inputted using the screen board as a screen; The position of the infrared pen is detected by using the infrared emission signal received from the infrared pen, and the position of the infrared pen is detected by using the infrared emission signal received from the infrared pen A sensor unit for transmitting the determined position information; And a control unit which is interlocked with the projector and the sensor unit through a network, receives coordinate information, position information, and light sensing information transmitted from the sensor unit and analyzes the analyzed coordinate information, And a sketch, an underline, or a sketch are displayed on the screen of the electronic board.

Description

 ELECTRONIC BOARD SYSTEM FOR USING PIR SENSOR USING IR SENSOR

The present invention relates to an electronic board system using an infrared sensor. And more particularly, to an electronic whiteboard system using an infrared ray sensor for detecting infrared ray oscillation signals to determine positional information and enabling writing using the determined positional information.

Generally, when lecturing to a large number of attendees at schools, academies, and meetings, a lecture is conducted while writing on a blackboard, or a method of lecturing through an LCD projector and a screen installed on a wall is used .

In the case of lecture proceeding while writing directly on the blackboard, the lecturer was inconvenient because the lecturer had to write and write the contents and the dust was generated. In addition, the way of lecturing while writing on the board has to write the contents written on the board one by one and if the written contents have to be printed, it has to be written on the paper again.

Therefore, the lessons that were written in chalk on the blackboard were transformed into smart lessons by using various electronic equipments. Lessons with electronic equipments can easily produce materials such as images and videos needed for class, Through web surfing during the class, students can find the necessary materials to facilitate understanding of the students. By recording the class with the video camera, students can view the class again at any time. Even if they can not participate in the class, It has become possible to watch videos of classes and developments such as smart phones and PDAs have made it possible to take courses without restriction of time and space. In addition, the electronic blackboards designed to enable interactive communication between a computer and a blackboard are available in various forms The trend is being developed.

Such an electronic board is classified into various types, including a tablet-type LCD monitor-type electronic board, a general whiteboard board-type electronic board, a projection TV-type electronic board having a beam project, a PDP / LCD TV type electronic blackboard have been developed and used.

For example, a conventional electronic whiteboard system is composed of a screen board 1, a projector 2, and a computer 3 that also function as a screen and a whiteboard. That is, the screen of the computer 3 is projected onto the screen board 1 by using the projector 2. When the user touches the screen board 1 by using the hand or the touch pen 4, The touch sensor provided on the touch panel 4 senses the approach or contact of the hand or the touch pen 4 and determines that the pen or mouse function is performed and performs a corresponding operation.

On the other hand, in such a conventional electronic whiteboard system, the screen of the computer 3 is illuminated on the entire area of the screen board 1, and the entire area of the screen board 1 is written in a manner that the user touches the entire area The size of the screen board 1 is limited to about 100 inches due to limitations such as a limit of the user's reach or a detectable range of the sensor.

Therefore, in a large auditorium or lecture room where a large screen of about 200 inches can be installed, there are many portions in which the user can not perform the writing due to the difficulty of the user even if the electronic board is installed. It is used inefficiently.

In addition, if the user uses only the lower part which is reachable by the user, the contents of the written board can not be seen largely due to the lecture which uses only part of the electronic board even in the audience's standpoint, .

Korean Patent No. 10-1082572 (November 4, 2011)

An object of the present invention is to provide an electronic whiteboard system using an infrared sensor for detecting infrared ray oscillation signals, determining position information, and enabling writing using the determined position information.

It is another object of the present invention to provide an infrared ray sensor capable of displaying an underline or a sketch on data displayed on an image at various angles by extending the detection range of the sensor, And an electronic board system using the electronic board.

It is another object of the present invention to provide an electronic whiteboard system using an infrared sensor that enhances the visibility of an audience by emphasizing steel data displayed on an image.

The objects of the present invention are not limited to those mentioned above, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention for solving such problems, an electronic whiteboard system using an infrared sensor generates an infrared ray oscillation signal according to a motion to display an underline sketch on a data displayed in an image, An infrared pen for transmitting and receiving information necessary for position measurement determination; And a controller for sensing an infrared ray oscillation signal generated from the infrared pen on the corner side and determining arrival time and distance information of the infrared ray oscillation signal from the sensed signal, A screen board including a detection sensor for transmitting information; A projector for projecting an image on the screen board according to a video signal inputted using the screen board as a screen; The position of the infrared pen is detected by using the infrared emission signal received from the infrared pen, and the position of the infrared pen is detected by using the infrared emission signal received from the infrared pen A sensor unit for transmitting the determined position information; And a control unit which is interlocked with the projector and the sensor unit through a network, receives coordinate information, position information, and light sensing information transmitted from the sensor unit and analyzes the analyzed coordinate information, And a sketch, an underline, or a sketch are displayed on the screen of the electronic board.

The infrared pen further includes an infrared transmission / reception unit mounted on the front and the rear of the infrared pen to generate an infrared emission signal, the infrared transmission / reception unit transmitting signals to be generated, the infrared pen having a circular or hexahedron shape for easy gripping, An input control unit for controlling on / off of the power of the infrared ray generator and controlling on / off of sending / outputting the infrared ray oscillation signal; And a laser emitting unit for irradiating a laser beam toward the front of the infrared ray pen. The present invention also provides an electronic whiteboard system using the infrared ray sensor.

In addition, the projector may include a communication module for transmitting and receiving signals and information, a sensing module for sensing images and reflected light projected on the screen board, interlocked with the communication module, and transmitting light sensing information of the sensed reflected light and image through the communication module The present invention also provides an electronic whiteboard system using the infrared sensor.

The sensor unit includes a coordinate setting unit connected to the user terminal, interlocked via a wired / wireless network, for detecting an image projected from the projector, and setting coordinates of a position of the sensed image area, And a communication unit for transmitting the position information of the infrared pen tracked by the position tracking unit to the user terminal. An electronic board system using an infrared sensor is provided.

The user terminal may further include a communication unit provided to receive the coordinate information, the position information, and the light sensing information transmitted and transmitted by the sensor unit and the projector, and a controller for analyzing each information received by the communication unit, An image is created and displayed in an area corresponding to coordinates connected to the projected image by connecting the coordinates of the moving object moved within the image area projected by the projector 220 among the position information of the pen 300 The present invention also provides an electronic whiteboard system using the infrared sensor.

The user terminal may further include a user program for executing and activating lecture data or various image and multimedia data, and for providing various settings for the pen and sketch to the activated data. And provides an electronic board system using the same.

In addition, the user program may include a multi-window module for dividing an image displayed by the projector into a plurality of images and simultaneously executing and activating different pieces of the data, And a sketch module that is provided to select each function for writing and sketching on an image. The present invention also provides an electronic whiteboard system using the infrared sensor.

According to the present invention, the position information is determined by detecting the infrared ray oscillation signal, and the important contents of the data displayed in the image projected onto the electronic board by the projector using the determined position information can be displayed in the form of a board, underlining or sketch It is effective.

In addition, the present invention has an effect of allowing an efficient lecture to be performed by allowing an underline or a sketch to be displayed on data displayed on an image at various angles by extending the detection range of the sensor or the limit that the user can reach.

In addition, the present invention has the effect of enhancing the audience visibility by emphasizing the lecture data displayed on the image.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a perspective view of an electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention,
FIG. 2 is a block diagram schematically showing a configuration of a projector of an electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention. FIG.
FIG. 3 is a block diagram schematically showing the structure of a sensor unit of an electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention.
4 is a block diagram schematically showing the configuration of a user terminal of the electronic whiteboard system using the infrared sensor according to the preferred embodiment of the present invention.
FIG. 5 is a view illustrating an example of a use state of an electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unnecessary. The terms described below are defined in consideration of the structure, role and function of the present invention, and may be changed according to the intention of the user, the intention of the operator, or the custom.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art to which the present invention pertains, It is only defined by the scope of the claims. Therefore, the definition should be based on the contents throughout this specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms "unit," " part, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

In the exemplary embodiment of the present invention, each component, function block or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by the components may be electronic circuits, An integrated circuit, an ASIC (Application Specific Integrated Circuit), or the like, or may be implemented separately or two or more may be integrated into one.

Also, each block of the accompanying block diagrams and combinations of steps of the flowchart may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus so that the instructions, which may be executed by a processor of a computer or other programmable data processing apparatus, And means for performing the functions described in each step are created.

These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory It is also possible for the instructions stored in the block diagram to produce a manufacturing item containing instruction means for performing the functions described in each block or flowchart of the block diagram. Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible that the instructions that perform the processing equipment provide the steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

2 is a block diagram schematically showing the structure of a projector of an electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention; FIG. 2 is a block diagram FIG. 3 is a block diagram schematically showing a configuration of a sensor unit of an electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention. FIG. 4 is a block diagram of the electronic whiteboard system using an infrared sensor according to a preferred embodiment of the present invention. FIG. 5 is an exemplary view illustrating a use state of an electronic whiteboard system using an infrared ray sensor according to a preferred embodiment of the present invention. Referring to FIG.

Hereinafter, an electronic whiteboard system using an infrared sensor according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

The electronic board system using the infrared sensor according to the present invention includes an infrared pen 300 for generating an infrared emission signal, a screen board 100 installed on a wall surface in front of the classroom, a screen board 100 using the screen board 100 as a screen, (200) for projecting an image to the display unit (100), a display unit for sensing an image region projected from the projector (200), setting coordinates on the entire image region sensed and controlling the infrared ray oscillation signal received from the infrared pen A sensor unit 400 for tracking the position of the infrared pen 300 and transmitting the tracked position information and the set coordinate information using the sensor 300 and the sensor unit 400, And displays the generated image on the image projected by the projector 200. In addition, the position information and the position information received from the projector 200 are analyzed, It is configured to include the user terminal 500 so as to.

The infrared pen 300 has various circular or hexahedral shapes for easy gripping by the user as well as a normal pen or a remote controller. The infrared pen 300 generates an infrared ray oscillation signal (IR signal) It is possible to transmit necessary information and display an underline or a sketch on the data displayed on the image projected by the projector 200 and to display the data displayed on the image by a simple operation in a multi- It also plays the role of letting the lecture proceed.

The infrared pen 300 includes an infrared transmission / reception unit 320, an input control unit 340, a mode setting unit 242, and a laser transmitting unit 360.

The infrared transmitter-receiver unit 320 is preferably an IR oscillator. The infrared transmitter-receiver unit 320 is mounted on the front and rear of the infrared pen 300 so as to generate an infrared emission signal according to the movement, To be transmitted to the projector 200.

The input control unit 340 is provided to control on / off of the power of the infrared pen 300 and to control on / off of sending / outputting the infrared ray oscillation signal or controlling the transmission / reception of the infrared ray oscillation signal, Can be accomplished in a button manner.

Next, the mode setting unit 342 performs changing and setting of a mode previously set by the function of the infrared pen 300 and displaying the set mode. The mode setting unit 342 is implemented by a button method, A cursor mode that acts as a cursor to designate the data displayed in the image projected by the projector 200 in accordance with the sequentially pressed images, and a pen mode that displays the projected image so as to enable the writer to sequentially change And is set to be set.

The laser emitting unit 360 is usually provided to irradiate a laser beam toward the front of the infrared pen 300 by a laser pointer, preferably by a pushing operation in a button manner, It is possible to enhance the utilization of the lecture by emphasizing the data part which is important in the displayed image.

The screen board 100 is preferably installed on a wall surface in front of the classroom and is typically used for a whiteboard that can be written using chalk or board markers, Not only the screen of the infrared pen 300 but also the position information of the infrared pen 300 is determined more precisely.

The screen board 100 is connected to the sensor unit 400 through a network to detect an infrared emission signal generated from the infrared pen 300. The infrared rays emitted from the infrared pen 300 And a sensing sensor 120 for determining the arrival time and distance information of the oscillation signal and transmitting the determined position information to the sensor unit 400. Accordingly, the precision of the position tracking of the infrared pen 300 Can be improved.

The projector 200 is connected to the user terminal 500 through a wired or wireless network or a plurality of video input interfaces and receives a video signal transmitted from the user terminal 500 using the screen board 100 as a screen Not only displays an image on one side of the screen board 100 upon receipt of a signal but also precisely measures and determines the position of an image area on which the lecture data is displayed during lecture, thereby minimizing precision and error range of the lecturer .

The projector 200 includes a communication module 240 for transmitting and receiving various signals and information in cooperation with the sensor unit 400 and the user terminal 500 in a wired and wireless network, And senses an image projected on the screen board 100. The laser beam emitted by the laser emitting unit 360 of the infrared pen 300 in the image senses reflected light reflected by the screen, And an optical sensor 220 that is provided to transmit light detection information of the reflected light and the image to the user terminal 500 through the communication module 240. Accordingly, 300 may be precisely matched.

Here, the wired / wireless network supports data transmission / reception using, for example, a wireless communication network, a wired communication network, or Bluetooth.

The sensor unit 400 is connected to the user terminal 500 and is preferably horizontally spaced apart from the screen board 100 by a predetermined distance to detect an infrared emission signal received from the infrared pen 300, Information can be judged, the projected image can be written using the determined position information, and the underline or sketch can be displayed on the data displayed on the image at various angles, so that the efficient lecture can be performed.

The sensor unit 400 is connected to the user terminal 500 and interlocked through a wired / wireless network. The sensor unit 400 senses an image projected from the projector 200 and sets coordinates of the detected image area A position tracking unit 440 for tracking the position of the infrared pen 300 using the infrared emission signal received from the infrared pen 300, And a communication unit 460 for transmitting the position information of the infrared pen 300 tracked from the infrared pen 300 to the user terminal 500.

When the projector 200 projects an input image according to the image input signal transmitted from the user terminal 500 or when the infrared pen 300 is powered on, It is possible to detect the image and provide the set coordinate information by setting the position coordinates in the whole of the detected image area.

 The position tracking unit 440 receives the infrared ray oscillation signals transmitted from the infrared pen 300 and uses the infrared ray oscillation signals to track the position of the infrared ray pen 300 according to a triangulation method A plurality of oscillation signals transmitted from the infrared pen 300 are received, a distance measurement and position of the infrared pen 300 is tracked from the received infrared emission signal, and the position of the infrared pen 300 is determined, Information can be provided.

The communication unit 460 communicates with the user terminal 500 and the infrared pen 300 to transmit and receive information and various signals. The communication unit 460 communicates with the user terminal 500 and the infrared pen 300 through a wired / And may be provided to transmit the coordinate information and the position information provided by the coordinate setting unit 420 and the position tracking unit 440 to the user terminal 500.

The user terminal 500 is connected to the projector 200 and the sensor unit 400 and receives coordinate information, position information, and light sensing information transmitted from the sensor unit 400, And analyzes the image projected by the projector 200 and the data displayed on the image using underlining, writing, or sketching by using the analyzed position information to provide an efficient lecture.

The user terminal 500 includes a communication unit 520 and a communication unit 520. The communication unit 520 is provided to receive coordinate information, position information, and light sensing information transmitted and transmitted by the sensor unit 400 and the projector 200, The coordinates of the copper wire moved in the image area projected by the projector 200 among the position information of the analyzed infrared pen 300 are connected by a line, The image generating unit 560 generates an image in an area corresponding to the coordinates and provides the image to be displayed on the image, When an image is projected, underlined or sketched using the infrared pen 300 in the image area of the projected screen board 100, the position of the image corresponding to the image area of the screen board, that is, And the sketch, the underline or the sketch is expressed on the image projected by the user.

In addition, the user terminal 500 may further include a memory unit 580 to store the image represented by the image, and accordingly, the user terminal 500 may listen to the lecture by the image stored in the memory unit 580 The lecturers can take lectures efficiently without having to write a separate paper, and visibility and lecture efficiency can be increased by emphasizing important contents of the image data.

The user terminal 500 may further include a user program 510 for executing and activating lecture data or various image and multimedia data, and providing various settings for writing and sketching to the activated data .

Here, the user program 510 is a program preset by the user, is executed and activated from the user terminal 500, displayed on the image projected by the projector 200 together with the lecture material, May be provided to execute and activate the corresponding function selected and selected by the user using the infrared pen 300 in the image area projected by the projector 200. [

The user program 510 includes a multi-window module 512, a sketch module 514, and a user interface 510. The multi-window module 512 is provided as a user interface for selecting and setting the respective functions included in the user program 510, Module 516, as shown in FIG.

Here, the multi-window module 512 may be provided for dividing an image displayed by the projector 200 into a plurality of pieces, and simultaneously executing and activating different pieces of data, respectively, to write and sketch.

The sketch module 514 may be used to load image information stored in the user terminal 500 or to input image information such as a line width, a line color, a line shape, a pen tool, an erase mode, and a mouse cursor mode May be provided to select functions.

Next, the template module 516 may be provided to select and set a plurality of graphic and numeric special symbols and pre-input images on an image projected by the projector 200 and display the images on the image.

According to an embodiment of the present invention, an electronic board system using an infrared sensor senses an infrared ray oscillation signal to determine position information, and uses the determined position information to detect an important content of data displayed on the electronic board It is possible to display the underlining or sketch on the data displayed on the image at various angles by expanding the detection range of the sensor or the limit that the user's hand can reach, It is an invention that has the effect of enhancing the visibility of the audience by emphasizing the lecture data displayed in the image as well as being able to proceed the lecture efficiently.

100. Screen board 120. Detection sensor
200. Projector 220. Optical sensor
240. Communication module 300. Infrared pen
320. Infrared transmission / reception unit 340. Input control unit
342. Mode setting section 360. Laser transmitting section
400. Sensor section 420. Coordinate setting section
440. Location tracking unit 460. Communication unit
500. User terminal 510. User program
512. Multi-window module 514. Sketch module
516. Template module 520. Communication module
540. Location information analyzer 560. Image generator
580. Memory section

Claims (7)

In an electronic whiteboard system using an infrared sensor,
An infrared pen for generating an infrared ray oscillation signal according to movement to display an underlined sketch by writing on data displayed in an image, and transmitting and receiving information necessary for distance and position measurement determination;
And a controller for sensing an infrared ray oscillation signal generated from the infrared pen on the corner side and determining arrival time and distance information of the infrared ray oscillation signal from the sensed signal, A screen board including a detection sensor for transmitting information;
A projector for projecting an image on the screen board according to a video signal inputted using the screen board as a screen;
The position of the infrared pen is detected by using the infrared emission signal received from the infrared pen, and the position of the infrared pen is detected by using the infrared emission signal received from the infrared pen A sensor unit for transmitting the determined position information; And
The controller receives the coordinate information, the position information, and the light sensing information transmitted from the sensor unit, analyzes the analyzed coordinate information, and transmits the coordinate information, the position information, and the light sensing information to the image projected by the projector, An underline, or a sketch,
The user program includes a multi-window module for dividing an image displayed by a projector into a plurality of images and simultaneously executing and activating different pieces of data on the same, respectively, for writing and sketching; And a sketch module provided to select each function for writing, plotting, and sketching.
The method according to claim 1,
Wherein the infrared pen is formed in a circular or hexahedron shape so as to facilitate gripping and is mounted on the front and the rear of the infrared pen to generate an infrared emission signal and transmits the generated signal, An input control unit for controlling the ON / OFF of the infrared ray oscillation signal and the transmission / reception of the infrared ray oscillation signal; a control unit for changing and setting a preset mode by the function of the infrared pen; And a laser emitting unit for irradiating a laser beam toward the front of the infrared ray pen.
The method according to claim 1,
The projector may include a communication module for transmitting and receiving signals and information, a sensing module for sensing images and reflected light projected on the screen board in cooperation with the communication module, and transmitting light sensing information of the sensed reflected light and image through the communication module And an optical sensor.
The method according to claim 1,
The sensor unit includes a coordinate setting unit connected to the user terminal, interlocked through a wired / wireless network, for detecting an image projected from the projector, and setting coordinates of a position of the sensed image area, And a communication unit for transmitting the position information of the infrared pen tracked by the position tracking unit to the user terminal. The infrared ray sensor according to claim 1, wherein the infrared ray sensor comprises: Electronic board system using.
The method according to claim 1,
The user terminal comprises: a communication unit provided to receive coordinate information, position information, and light sensing information transmitted and transmitted by the sensor unit and the projector; and a communication unit for analyzing each information received by the communication unit, And an image generator for generating an image in an area corresponding to coordinates connected to the projected image by connecting the coordinates of the moving object moved within the image area projected by the projector 220 Wherein the infrared ray sensor comprises a plurality of infrared sensors.
The method according to claim 1,
Wherein the user terminal further comprises a user program for executing and activating lecture data or various image and multimedia data and for providing various settings for the form and sketch to the activated data. Blackboard system.
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