KR20030032275A - board scanning controlling method and apparatus - Google Patents

Abstract

PURPOSE: A method for controlling a board scanning and a device thereof are provided to improve a concentration and a study efficiency with respect to lecture contents, and increase an education effect by storing contents written on a board as a file and printing the contents. CONSTITUTION: A movement unit(30) is fixed and mounted on a ceiling. A digital CCD(Charge Coupled Device)(20) including the optical lens is connected to the movement unit(30) and mounted toward a board. A microcomputer controller(40) is connected to the movement unit(30) and the digital CCD(20) and includes an infrared ray receiving unit. A PC(50) is connected with the microcomputer controller(40), a PC interface, and a USB cable(70). The board is divided into many sections. Multi-divided setting values are inputted and set through the PC(50). The microcomputer controller(40) controls the movement unit(30) and the digital CCD(20) according to the setting values, moves the digital CCD(20) intermittently, enlarges and photographs each divided section. A plurality of images are transmitted and stored in the PC(50) through the microcomputer controller(40) and the USB cable(70). The stored image is reduced in the PC(50), rearranged, integrated as one image, and stored. The integrated image is displayed on a monitor, and written contents of the board are transmitted/stored in the PC(50).

Description

Board scanning control method and apparatus {board scanning controlling method and apparatus}

The present invention relates to a board scanning control method and an apparatus thereof, wherein a character or a figure and a number described on a board that can be repeatedly written, such as a blackboard or a white board, are scanned by a digital CCD to a paper through a control unit and an output unit. The present invention relates to a board scanning control method and apparatus for printing or saving a file.

To date, school classes have generally been written on a blackboard or white board and lectures have been focused on the written contents, and lectures based on the summary and summary of lecturers are given priority over lectures by textbooks.

However, if the lecture proceeds in the manner described above, the learner has to first write down the written contents on the board to the individual's notes. There was a problem that I could not hear the contents of the lecture or could not take notes.

In addition, when the contents of the lectures are many, it is necessary to write a number of times, so that the lecture ends while writing down the notes, the lecture concentration is lowered due to the obsession with the writing, and there is a problem that the efficiency is lowered.

Of course, in order to solve the above problems, there is a special board equipped with a copying machine capable of copying the information described on the board (board) on one side, but this is expensive and the width of the board is not suitable for the current educational situation. Because only a special pen needs to be written, there is a problem that the waste of resources is intensified.

In addition, when writing on the board, you can write using a special pen of various colors, but when copying, it is printed only in black and white, so you cannot expect the mark according to the importance, and the copy paper must use thermoelectric paper, There is a problem that the copy paper curling phenomenon, the copy takes time, so that only a few benefits.

The present invention has been made in view of the above problems, and its object is to save the contents described on the board as a file and to print, eliminating the hassle of rewriting, and focusing on lecturers' lecture contents and It is to provide a board scanning control method and device for improving academic efficiency and maximizing educational effect.

The present invention comprises the steps of dividing a board into a plurality of zones and inputting / setting the multi-divided setting values through a PC; Controlling the moving unit and the digital CCD in the micom controller according to the set value to enlarge and photograph each of the divided regions while intermittently moving the digital CCD; Transmitting / storing a plurality of images respectively magnified by the digital CCD to a PC through a microcomputer controller and a USB cable; Reducing and reordering the stored images on a PC and storing the combined images as one image; The present invention provides a board scanning control method and apparatus for transmitting / storing the contents of a board to a PC through displaying the integrated image on a monitor.

1 is an exemplary view showing a flow according to the present invention

Figure 2 is an exemplary view showing a control flow by the microcomputer controller of the present invention

3 is an exemplary view showing a configuration of the present invention

4 is an exemplary view showing a moving unit according to the present invention;

5 is an exemplary view showing another moving unit according to the present invention;

6 is an exemplary view showing an outline of the present invention.

7 is an exemplary view showing an overview of screen recognition according to the present invention.

8 is an exemplary view showing an image scanning flow in an enlarged scan and a PC using the present invention digital CCD

* Explanation of symbols for the main parts of the drawings

(10): Board (10 ′): Virtual Board

(20): Digital CCD (21): Optical Lens

30: moving part 31: base plate

(32): first stepping motor (33): first ball screw

34: first slider 35: second stepping motor

(36): support (37): guide rail

31 ': Base plate 32': First stepping motor

(33 ′): Feed cable (34 ′): Slider

35 ': second stepping motor 36': support

(37 ′): guide rail (38′a): first pulley

(38′b): Second pulley (39 ′): tension spring

40: MICOM CONTROLLER

50: PC 51: PC Monitor

(52): Printer (60): Education System

70: USB cable 80: remote control

90: infrared receiver 100: one side wall

200: ceiling 300: memory

400: power supply 500: PC interface

(800): Board Scanning Device

1 is an exemplary view showing a flow according to the present invention, Figure 2 is an exemplary view showing a control flow by the microcomputer controller of the present invention, Figure 3 is an exemplary view showing a configuration of the present invention, one side wall surface The digital CCD 20 and the moving unit 30 are installed on the ceiling so as to face the board 10 installed in the 100, and the digital CCD 20 is intermittently in accordance with a value preset by the moving unit 30. While moving, the board 10 is divided and enlarged, photographed, and then transferred and stored to the PC 50 to be rearranged and displayed on the monitor 51.

The digital CCD 20 converts the intensity of the light into an electrical signal by arranging the CCD instead of the film at a portion where the light coming through the lens is collected, and is generally similar to the operating principle of the video camera, and dedicated to the digital camera. The CCD is composed of pixels in the forward direction and employs a primary color filter which is advantageous for clear color reproduction. In addition, the digital CCD is connected to a computer immediately after photographing so as to immediately perform image work. The digital CCD is controlled by the microcomputer controller 40 and an optical lens 21 is installed.

The moving unit 30 moves the digital CCD 20 up / down, left / right, and as shown in FIG. 4, the base plate 31 is fixed to the ceiling and has guide rails 37 at both ends. ), A first stepping motor 32 fixed / installed on the base plate 31, and a first ball screw 33 having the same center line as the axis of the first stepping motor 32 and connected / installed. And a first slider 34 mounted on the first ball screw 33 to move horizontally along the guide rail 37, a support 36 fixed / installed to the first slider 34, and And a second stepping motor 35 fixed to the support 36 and connected / installed with a digital CCD, and the first and second stepping motors 32 and 35 are controlled by the microcomputer controller 40 to control the digital CCD ( Move 20) left / right and rotate it up / down simultaneously.

That is, the digital CCD 20 is rotated up / down by the second stepping motor 35 and is horizontally moved left / right by the first stepping motor 32 and the first ball screw 33.

In addition, the moving part 30 is fixed to the ceiling as shown in Figure 5, the base plate 31 'having guide rails 37' at both ends, and both ends of the base plate 31 '. First and second pulleys 38'a and 38'b rotatably mounted to the first and second stepping motors 32 'connected to the first pulley 38'a, and the first and second pulleys 38'a and 38'a. A feed cable 33 'installed to be in contact / circulation with the pulleys 38'a and 38'b and having a tension spring 39', and fixedly installed at one side of the feed cable 33 'and provided with a guide rail ( A slider 34 'moved along the 37', a support 36 'fixed / installed to the slider 34', and a second fixed to the support 36 'and connected / installed with a digital CCD. It is composed of a stepping motor (35 '), the first pulley (37') is rotated by the operation of the first stepping motor (32 '), by the rotation of the first pulley (38' a). As the feed cable 33 'is moved, the second pulley 38'b is rotated, and the slider 34' is left / right along the guide rail 37 'by the movement of the feed cable 33'. It is to be moved horizontally, and the digital CCD is rotated up / down by the 2nd stepping motor 35 '.

As shown in FIGS. 1 and 2, the microcomputer controller 40 is connected by a PC 50, a PC interface, and a USB cable 70, and the first and second stepping motors 32 of the moving unit 30 are connected to each other. , 35, control of focus change according to illuminance and enlargement of the digital CCD 20, image control through a PC monitor 51, and remote control by the remote controller 80 and the infrared receiver 90 are possible. It is supposed to be. That is, the moving unit 30 and the digital CCD 20 may control the image through the PC 50 and the PC monitor 51, and the remote controller may be controlled by the remote controller 80.

6 is an exemplary view showing an overview of the present invention, Figure 7 is an illustration showing an overview of the screen recognition according to the present invention, a board installed on one side wall as shown in Figures 6 and 7 In consideration of the resolution of the CCD 20, the upper and lower portions are divided, and when the upper and lower portions are respectively divided into seven zones and are scanned, the divided setting values are first input through the PC 50, and then the remote controller 80 Alternatively, when the scanning operation is performed by the image control by the PC 50, the microcomputer controller 40 controls the moving unit 30 and the digital CCD 20 according to the division setting value. That is, the digital CCD 20 moves to the B, C, D, E, F, and G areas from the upper one end A area of the board 100 to the first stepping motor 32 and the first ball screw of the moving part 30. Intermittently moved by 33, the digital CCD 20 is enlarged and photographed in each zone and transmitted to the microcomputer controller 40. When the upper zone of the board 100 is photographed, the second stepping motor 35 is completed. As a result, the digital CCD 20 rotates downward. At this time, the moving unit 30 for moving the digital CCD 20, if the digital CCD 20 is moved to each zone divided into A, B, C, D, E, F, G zones, It pauses and makes an intermittent movement, which is moved again when shooting is completed.

The digital CCD 20 moved as described above is again in the H, I, J, K, L, M, N zone by the first stepping motor 32 and the first ball screw 33 of the moving unit 30. Sequentially moving intermittently, for each zone, the digital CCD 20 photographs the corresponding zone and transmits it to the microcomputer controller 40.

As described above, the image information photographed by the digital CCD 20 is stored in the PC 50 through the microcomputer controller 40 and the USB cable 70. In this case, since the stored image information is enlarged and photographed by the digital CCD 20, the image information is reduced in the PC 50 and rearranged so as to have the same shape as that of the board. That is, in the present invention, as shown in FIG. 8, there is a virtual board 10 ′ having the same division as the board 10 that is actually multi-divided in the virtual space provided in the PC. The saved image is transferred to the same place on the board in the virtual space to compose the image.

That is, in the present invention, when the lecturer writes the lecture contents on the board and then instructs the scanning operation through the CCD 20 camera remote controller, the first signal of the mobile unit 30 is received by the micom controller by receiving the signal by the infrared receiver. , 2 control the illumination and focus change of the stepping motor and the digital CCD 20 to divide the board according to the preset multi-division setting value, magnify and shoot a number of times, and then transfer it to the PC through the microcomputer controller to save the image. The plurality of stored images are reduced and rearranged on a PC to be stored / displayed as a completed image. In addition, the image integrated and stored as one image may be directly available on the screen through a monitor, and when output through a printer, printing of the same quality as the image image may be performed. In addition, the stored image may be transmitted to and stored in another educational system 60, such as an Internet educational system.

Hereinafter, the present invention will be described in detail with reference to Examples.

Maximum number of characters listed on the board when you want to scan the characters described in the board length (2,400 mm × 1,200 mm) (minimum unit is 10 mm × 10 mm) using the resolution of 640 × 480 dots of the digital CCD Is 28,800 characters. In addition, in the case of Hangul, it must have a resolution of at least 16 × 16 dots (total 256 dots) in order to display a single character. Therefore, when calculating the resolution of a board based on the minimum resolution, 3,840 × 1,920 dots are required. do.

If you want to scan the board by the digital CCD with the resolution of 640 × 480, divide the resolution of the board that can see all the letters clearly by the resolution of the digital CCD, 3840/640 = 6 times, 1920/480 = 4 Doing so, ie, 6 times horizontally and 4 times vertically, will give you a resolution that will clearly identify all the letters on the board. As a result, when scanning a board using a digital CCD having a resolution of 640 × 480, if one side of the board is divided into 6 equal parts and 4 equal parts by scanning as shown in FIG. You will get a recognizable resolution.

As described above, in the present invention, when a board is scanned using a digital CCD having a resolution of 640 × 480, first, a setting value obtained by dividing the board into six equal parts and four equal parts is inputted through a PC. By providing a space of 3,840 (width) x 1,920 (length) = 7,372,800 bytes in the memory, the same virtual board 10 'as the actual board 10 is provided in the PC and divided in the same manner as the actual board. When the division setting value is input as described above, the actual board scan operation is instructed by the image control through the monitor or the remote control by the infrared light receiving unit.

According to the command of the scan operation, under the control of the microcomputer controller, the moving unit and the digital CCD enlarge and scan each partition of the actual board according to the division setting value, and the scanned image is transferred to a PC to perform the compression process. After being stored in the hard disk, the image of the actual board transmitted to the PC is transferred to a portion of the virtual board in the PC corresponding to the position of the actual scanned board to form an image.

When the digital CCD scans the whole board by repeating the operation / control of the moving unit and the digital CCD by the microcomputer controller and the transmission / storage to the PC, the image of the actual board full screen is composed on the virtual board located in the virtual space in the PC. It is done.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention captures the contents of the board by using a digital CCD, so that the image can be connected to a computer immediately after the shooting, and the enlarged photograph of the board is divided by the digital CCD, and the image is stored in the PC. This eliminates the hassle of moving the lecturer's notes into a personal note, which improves the student's concentration and academic efficiency, and allows them to listen to the lecture in a quiet atmosphere.

In addition, since the board is enlarged and image processing is performed to save the completed image on the PC instead of zooming in, it is possible to store fine text or difficult fonts vividly and accurately, and to output it to the printer at any time. .

In addition, the stored images can be easily converted into the graphic formats commonly used in computers, and can be used for Internet education at home or other places using intranets or web pages, and re-analyze educational contents by preserving the teaching materials of teachers. There are many effects, such as being available for better education.

Claims (7)

Dividing the board into a plurality of zones and inputting / setting the divided settings through a PC; Controlling the moving unit and the digital CCD in the micom controller according to the set value to enlarge and photograph each of the divided regions while intermittently moving the digital CCD; Transmitting / storing a plurality of images respectively magnified by the digital CCD to a PC through a microcomputer controller and a USB cable; Reducing and reordering the stored images on a PC and storing the combined images as one image; And transmitting / storing the description of the board to a PC by displaying the integrated image on a monitor. The method of claim 1; And the digital CCD is horizontally moved left / right intermittently by a first stepping motor of the moving part according to a set value, and vertically moved up / down by a second stepping motor of the moving part. The method of claim 1 or 2; And the digital CCD and the moving unit are image controlled through a monitor of a PC. The method of claim 1 or 2; And the digital CCD and the moving unit are controlled by a remote control unit by an infrared receiver. A moving part fixed / installed to the ceiling, A digital CCD connected to the moving unit and installed to face the board and having an optical lens therein; A microcomputer controller connected to the moving unit and the digital CCD and having an infrared receiver; And a PC connected to the microcomputer controller via a PC interface and a USB cable. The method of claim 5; The moving unit is fixed to the ceiling and the base plate having a guide rail at both ends, the first stepping motor is installed on the base plate, and the first center step and the same center line with the axis of the first stepping motor is connected / installed A first ball screw, a first slider mounted on the first ball screw to move horizontally along the first ball screw, and a second stepping motor fixed / installed to the first slider and connected / installed to the digital CCD. Board scanning apparatus, characterized in that. The method of claim 5; The moving part is fixed to the ceiling and the base plate having a guide rail at both ends, the first and second pulleys are respectively installed to be rotatable at both ends of the base plate, and the first stepping motor connected to the first pulley And a transport cable installed to be in contact with / circulating with the first and second pulleys and having a tension spring, a slider fixed to one side of the transport cable and moved along a guide rail, and a support fixed / installed to the slider. And a second stepping motor fixed to the support and to which the digital CCD is connected / installed.