JP7298341B2 - ELECTRONIC INFORMATION BOARD, ELECTRONIC INFORMATION BOARD SYSTEM AND THEIR CONTROL METHOD AND PROGRAM - Google Patents

Description

The present invention relates to an electronic information board, an electronic information board system, a control method thereof, and a program.

An information board product is known that takes handwritten characters and lines as data, for example, takes them as data, outputs them to a printer, and displays them on the screen of a personal computer.

In Patent Document 1, when outputting image data generated by reading characters, figures, etc. drawn on a writing surface, the visibility of the image data is improved by varying the threshold value when the image is binarized. Disclosed is an electronic blackboard that prevents loss of written content while keeping it in good condition.

A so-called electronic information board product having a touch panel mounted on a display is on the market. The electronic information board can operate a personal computer displaying a screen by using a touch panel function mounted on the electronic information board. In addition, the electronic information board uses a touch panel function to draw handwritten characters, lines, etc. on the screen using an electronic pen, capture the screen of a personal computer and draw handwriting superimposed on it, and use the touch panel function. Handwriting function is provided through .

However, when characters or figures are input with an electronic pen, the characters or figures may be missing if the characters or figures are quickly written depending on the drawing performance of the touch panel or the writing performance of the electronic pen. There is a limit to the extent to which omission can be prevented by controlling the threshold value as in the prior art, and there is a problem that omission of characters depending on user's operation cannot be solved.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic information board that enables a user to learn an appropriate writing speed at which characters, graphics, etc. are not easily lost.

The disclosed technology is an electronic information board on which a user can write on a screen, wherein the writing speed determination unit determines whether the writing speed of the user is acceptable; a teaching unit that teaches the writing speed when it is determined that the writing speed is not acceptable, the teaching unit displaying a training screen on the screen and setting the writing speed to an acceptable writing speed on the training screen. It is an electronic information board that displays characters or graphics at a display speed based on

According to the disclosed electronic information board, the user can learn an appropriate writing speed at which characters, figures, etc. are not easily lost in drawing.

1 is an overall perspective view of an electronic blackboard according to the present embodiment; FIG. FIG. 2 is a hardware configuration diagram of the electronic blackboard of the present embodiment; FIG. 2 is a functional configuration diagram of the electronic blackboard of the present embodiment; 4 is a flowchart for explaining processing of the electronic blackboard of the present embodiment; 4 is a flowchart for explaining processing of the electronic blackboard of the present embodiment; 4A and 4B are diagrams for explaining the operation of the electronic blackboard according to the embodiment; FIG. 4A and 4B are diagrams for explaining the operation of the electronic blackboard according to the embodiment; FIG. 4A and 4B are diagrams for explaining the operation of the electronic blackboard according to the embodiment; FIG. The figure which shows the modification of an electronic information board.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated with reference to drawings. In the present specification and drawings, constituent elements having substantially the same functional configuration are denoted by the same reference numerals, and overlapping descriptions are omitted. Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the drawings. In each drawing, the same components are denoted by the same reference numerals, and redundant description may be omitted.

<Description of the entire electronic blackboard>
First, an electronic blackboard 2, which is an example of an embodiment of an electronic information board according to the present invention, will be described.

FIG. 1 is an overall perspective view of an electronic blackboard 2 of this embodiment.

The electronic blackboard 2 has a display 280 and a mounting table 3 . The display 280 is mounted on the mounting table 3 so that the screen is vertical. It is possible to write on the screen 281 of the display 280 with the electronic pen 290 . Note that writing on the screen 281 may be performed manually. The mounting table 3 has casters. The mounting table 3 mounts the display 280 and can be moved while the display 280 is mounted.

<Description of hardware>
FIG. 2 is a hardware configuration diagram of the electronic blackboard 2. As shown in FIG. As shown in FIG. 2, the electronic blackboard 2 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, an SSD (Solid State Drive) 204, a network I/ F 205 and an external device connection I/F (Interface) 206 are provided.

Among these, the CPU 201 controls the operation of the entire electronic blackboard 2 . The ROM 202 stores programs used to drive the CPU 201, such as the CPU 201 and an IPL (Initial Program Loader). A RAM 203 is used as a work area for the CPU 201 . The SSD 204 stores various data such as electronic blackboard programs. A network I/F 205 controls communication with a communication network. The external device connection I/F 206 is an interface for connecting various external devices. The external devices in this case are, for example, a USB (Universal Serial Bus) memory 230 and external devices (microphone 240, speaker 250, camera 260).

The electronic blackboard 2 also includes a capture device 211, a GPU 212, a display controller 213, a contact sensor 214, a sensor controller 215, an electronic pen controller 216, a short-range communication circuit 219, an antenna 219a of the short-range communication circuit 219, a power switch 222 and Selection switches 223 are provided.

Among them, the capture device 211 displays video information corresponding to the display contents of the display of the external PC (Personal Computer) 270 on the screen 281 as a still image or moving image. A GPU (Graphics Processing Unit) 212 is a semiconductor chip that specializes in graphics. The display controller 213 controls and manages screen display in order to output an output image from the GPU 212 to the display 280 or the like. The contact sensor 214 detects that the display 280 has been touched by the electronic pen 290 , the user's hand H, or the like. A sensor controller 215 controls the processing of the contact sensor 214 . The contact sensor 214 performs coordinate input and coordinate detection using an infrared shielding method. In this coordinate input and coordinate detection method, two light emitting/receiving devices installed at both ends of the upper side of the display 280 radiate a plurality of infrared rays in parallel with the display 280, and are provided around the display 280. This is a method of receiving light that is reflected by a reflecting member and returns along the same optical path as that of light emitted by a light receiving element. The contact sensor 214 outputs to the sensor controller 215 the IDs of the infrared rays emitted by the two light emitting/receiving devices blocked by the object, and the sensor controller 215 identifies the coordinate position, which is the contact position of the object. The electronic pen controller 216 communicates with the electronic pen 290 to determine whether or not the display 280 has been touched with the tip of the pen or the bottom of the pen. The short-range communication circuit 219 is a communication circuit such as NFC (Near Field Communication) or Bluetooth (registered trademark). The power switch 222 is a switch for switching ON/OFF of the power of the electronic blackboard 2 . The selection switches 223 are, for example, a group of switches for adjusting the brightness and color of the display on the display 280 .

Further, the electronic blackboard 2 has a bus line 210 . A bus line 210 is an address bus, a data bus, or the like for electrically connecting each component such as the CPU 201 shown in FIG.

In addition, the contact sensor 214 is not limited to the infrared blocking type, but is a capacitive type touch panel that identifies the contact position by detecting a change in capacitance, or identifies the contact position by a voltage change of two opposing resistive films. Various detection means may be used, such as a resistive touch panel that detects an electromagnetic induction generated when a contact object touches the display unit and identifies the contact position. Also, the electronic pen controller 216 determines whether or not the user (user) of the electronic pen 290 grips and other parts of the electronic pen are touched as well as the tip and the pen butt of the electronic pen 290 . may

<Description of the functions of the electronic blackboard 2>
FIG. 3 is a functional configuration diagram of the electronic blackboard 2 of this embodiment.

The electronic blackboard 2 includes a control section 300 , a screen input section 400 and a screen display section 500 .

[Control unit 300]
First, the controller 300 will be described. The control unit 300 controls the entire electronic blackboard 2 . The control unit 300 includes a CPU 201 that executes programs, a ROM 202 that stores programs and data, a RAM 203, an SSD 204, and the like. Specifically, the CPU 201 that constitutes the control unit 300 loads a program from a storage device such as the ROM 202 and the SSD 204 and executes the application program of the electronic blackboard 2 . Control unit 300 operates as a computer.

The control unit 300 includes an overall control unit 310 , a writing speed determination unit 320 , a teaching unit 340 , a screen input control unit 350 and a screen display control unit 360 .

Overall control unit 310 controls the entire control unit 300 .

The writing speed determination unit 320 determines whether the writing speed of the user (user) is acceptable for the electronic whiteboard 2 when the user (user) draws characters, bars, and the like. The writing speed determination unit 320 includes an input determination unit 321 , a character recognition unit 322 , an image comparison unit 323 , a missing rate calculation unit 324 and a determination unit 325 .

The input determination unit 321 determines whether characters or lines have been input.

The character recognition unit 322 recognizes input handwritten characters by OCR (Optical Character Recognition) and converts them into corresponding character codes.

The image comparison unit 323 compares images of the input handwritten characters and font characters corresponding to the character codes recognized by the character recognition unit 322 .

The missing rate calculation unit 324 calculates a missing rate (missing rate) at the time of handwriting input from the result of the image comparison performed by the image comparison unit 323 .

Based on the missing rate calculated by the missing rate calculating section 324, the determining section 325 adjusts the writing speed of the user to a drawing speed that the electronic blackboard 2 can handle, that is, draws characters, bars, etc. so that they are not blurred. Determine if the speed is acceptable. Note that there are variations in the speed at which characters, bars, and the like can be drawn without being blurred, depending on the model and series of the electronic blackboard 2 . Since the judgment unit 325 makes a judgment based on the dropout rate, it is possible to make a correct judgment according to the performance of the electronic whiteboard 2 .

The teaching unit 340 displays a screen for teaching the drawing speed when the writing speed determination unit 320 determines that the drawing speed is not compatible with the electronic blackboard 2 .

The screen input control section 350 controls the screen input section 400 . The screen display control section 360 controls the screen display section 500 .

More specific contents of the processing of each unit will be described in the description of the flow of processing that will be described later.

Note that each function of the embodiments described above can be realized by one or a plurality of processing circuits. Here, the "control unit" in this specification means a processor programmed to execute each function by software, such as a processor implemented by an electronic circuit, or a processor designed to execute each function described above. ASICs (Application Specific Integrated Circuits), DSPs (digital signal processors), FPGAs (field programmable gate arrays), conventional circuit modules, and other devices.

[Screen input unit 400]
The screen input unit 400 detects that the electronic pen 290 or the hand H touches the screen 281 of the display 280, and outputs the detection result to the screen input control unit 350 as information. The screen input unit 400 is composed of the contact sensor 214 and the sensor controller 215 .

[Screen display unit 500]
The screen display section 500 displays an image on the screen 281 of the display 280 under the control of the screen display control section 360 . The screen display unit 500 is composed of the GPU 212 , the display controller 213 and the display 280 .

<Description of process flow>
The processing (control method) of the electronic blackboard 2 will be described. 4 and 5 are flowcharts for explaining the processing of the electronic blackboard 2 of this embodiment. The electronic blackboard 2 performs processing based on the following steps (procedures).

(Step S10) When the operation of the electronic blackboard 2 is started (for example, the electronic blackboard 2 is powered on by the power switch 222, etc.), the control unit 300 performs initialization processing for initializing the electronic blackboard 2. I do. In the initialization process, for example, each functional unit of the control unit 300 is initialized.

(Step S20) The input determination unit 321 performs input determination processing for determining whether or not a character has been input.

Here, details of the input determination process will be described. FIG. 5 is a flow chart showing input determination processing. Since the electronic blackboard 2 cannot predict the characters written by the user, it determines whether or not a series of characters has been written by performing this input determination process.

(Step S<b>310 ) The input determination unit 321 detects whether the electronic pen 290 or hand H has touched the screen 281 . If they are in contact (step S310: YES), the process proceeds to step S320. If not in contact (step S310: NO), return to step S310 and repeat the process. In addition, when repeating the process, a fixed waiting time may be provided.

(Step S320) The input determination unit 321 starts measuring the contact time.

(Step S<b>330 ) The input determination unit 321 detects whether the electronic pen 290 or the hand H has moved (separated) from the screen 281 . If separation is detected (separated) (step S330: YES), the process proceeds to step S340. If separation is not detected (not separated), that is, if they are still in contact (step S330: NO), the process returns to step S330 to repeat the process. In addition, when repeating the process, a fixed waiting time may be provided.

(Step S340) The input determination unit 321 terminates contact time measurement. Then, the contact time (ta) is obtained from the measurement results.

(Step S350) The input determination unit 321 starts measuring the separation time.

(Step S360) The input determination unit 321 obtains the separation time (tb) at that time. Then, it is determined whether the separation time (tb) is shorter than a predetermined value based on the contact time (ta) (for example, ten times the contact time (ta), etc.). If it is shorter (step S360: YES), the process proceeds to step S370. If longer or equal (step S360: NO), proceed to step S390.

(Step S<b>370 ) The input determination unit 321 detects whether the electronic pen 290 or hand H has touched the screen 281 . If they are in contact (step S370: YES), the process proceeds to step S380. If not in contact (step S370: NO), return to step S360 and repeat the process. In addition, when repeating the process, a fixed waiting time may be provided.

(Step S380) (Step S390) The input determination unit 321 finishes measuring the separation time.

By performing the input determination process in step S20 in this manner, the input determination unit 321 can determine whether or not a series of characters has been written.

(Step S30) When characters are input in step S20, the character recognition unit 322 performs character recognition processing. Specifically, the character recognition unit 322 recognizes input handwritten characters by optical character recognition (OCR), and converts them into corresponding character codes. In optical character recognition, characters are cut out, normalized, extracted, matched, and processed in the order of knowledge processing to convert handwritten characters into character codes.

FIG. 6 is a diagram showing how character recognition processing is performed. FIG. 6A shows a state where the electronic pen 290 is brought into contact with the screen 281 to draw characters (handwritten characters HL1 and HL2). The handwritten character HL1 is "book", and the handwritten character HL2 is "day". Note that in FIG. 6A, the line is missing in the region A because the drawing speed was high. That is, the handwritten character HL2 has a missing part.

After writing a series of characters as shown in FIG. 6A, when the electronic pen is separated from the screen 281 for a certain period of time, the character recognition unit 322 performs character recognition. FIG. 6B shows a state in which the drawn handwritten characters HL1 and HL2 are subjected to character recognition processing and replaced with font characters of corresponding character codes (recognition characters RL1: "book", RL2: "day"). is a diagram. In this way, the electronic blackboard 2 can convert handwritten characters into font characters of corresponding character codes.

Note that the character recognition unit 322 of this embodiment detects characters, but for example, lines, curves, and the like may be detected.

(Step S40) The image comparison unit 323 performs image comparison between handwritten characters and recognized characters. Specifically, images are compared (matched) between the handwritten characters and the recognized characters, and portions where lines have disappeared are determined. For example, in FIG. 6A, by comparing the handwritten character and the recognized character, the image comparison unit 323 determines that the handwritten character HL1 does not have missing portions. On the other hand, it can be seen that the last horizontal line of "日" (region A in FIG. 6A) is missing in the handwritten character HL2. In that case, the image comparison unit 323 determines that there is a missing part in the handwritten character HL2.

(Step S50) The image comparison unit 323 determines whether or not the input handwritten characters (here, the handwritten characters HL1 and HL2) have missing portions. If there is a missing part (step S50: YES), the process proceeds to step S60. If there is no missing portion (step S50: NO), the process proceeds to step S90.

(Step S60) The missing rate calculator 324 counts the number of lines for missing locations. The missing rate calculation unit 324 obtains the total number of strokes input from the recognized character code based on the character recognition result of the character recognition unit 322 . The missing rate calculation unit 324 calculates a missing rate indicating the number of missing strokes with respect to the input total number of strokes. The missing rate calculation unit 324 calculates the missing rate in usage for a certain period of time (for example, 5 minutes).

(Step S70) The determination unit 325 determines whether the missing rate calculated by the missing rate calculation unit 324 is greater than a threshold value. For example, the threshold is 4.5%. If the omission rate is greater than the threshold (step S70: YES), the writing speed of the user (user) is the drawing speed that the electronic blackboard 2 can handle, that is, the speed at which characters, bars, etc. can be drawn without blurring. determined to be faster. In this way, the determination unit 325 determines that the user's writing speed is not acceptable for the electronic blackboard 2 . The determination unit 325 then proceeds to step S80. If the omission rate is equal to or less than the threshold (step S70: NO), it is determined that the writing speed of the user is acceptable for the electronic blackboard 2. Then, the process proceeds to step S90.

(Step S<b>80 ) Teaching section 340 displays writing practice screen 600 as a pop-up on screen 281 . FIG. 7 is a diagram showing a state in which the writing practice screen 600 is displayed. FIG. 8 is a diagram showing writing practice screens 610 and 620 that are specific examples of the writing practice screen 600 . The writing practice screen 600 teaches a writing speed that matches the drawing performance of the electronic blackboard 2 being used. The writing practice screen 600 (610, 620) is an example of the training screen.

On the writing practice screen 600 (610, 620), the characters "writing speed demo" indicating that it is a writing practice screen, the model name, and the drawing speed are described.

Next, the details of the writing practice screen 610 will be described. First, the user (user) practices in the "sample" on the upper right of the screen. Large characters 611 (“A”, “I”, “U”, “E”, and “O”) are drawn as “samples” on the upper right of the screen. The teaching unit 340 inserts an underscore 612 below the character 611 in accordance with the drawing performance of the electronic blackboard 2, that is, based on the drawing speed that the electronic blackboard 2 can allow, from the left end "A" to the right end "O". , in order. Thus, the teaching unit 340 displays the underbar 612 near the character 611 at a display speed based on the permissible writing speed. The user (user) traces the character 611 according to the underbar 612 using the character 611 as a model. By doing so, the user can grasp the optimum drawing speed of the electronic blackboard 2 .

The user then repeats and practices at the bottom center of the screen. Characters 615 (“A”, “I”, “U”, “E”, and “O”) are drawn in a total of 5 characters×10 lines at the bottom center of the screen. The teaching unit 340 lights the underbars 613 under the characters 615 in order according to the optimum drawing speed of the electronic blackboard 2 . In this way, teaching unit 340 displays underbar 613 near character 615 at a display speed based on the allowable writing speed. The user traces the character 615 along with the underbar 613 using the character 615 as a model. Thereby, the optimum writing speed for the electronic blackboard 2 (permissible drawing speed of the electronic blackboard 2) can be practiced. By practicing the above, the user can learn the writing speed that matches the performance of the electronic information board. When all characters have been written, the process proceeds to step S90.

The characters 611 and 615 are not limited to "a", "i", "u", "e", and "o", and may be other hiragana, katakana, kanji, or numbers. . Also, the characters of the characters 611 and 615 are not limited to Japanese, and may be characters of a language other than Japanese such as English.

Underbars 612 and 613 are examples of figures for figure teaching that change based on the drawing speed. Also, the characters 611 and 615 are examples of characters that serve as models.

(Step S90) The control unit 300 determines whether to end the process. When ending the process (step S90: YES), the process proceeds to step S100. If the process is not to end (step S90: NO), the process returns to step S20 and repeats the process from step S20.

(Step S90) A process for ending the process of the electronic blackboard 2 is performed.

<effect, action>
If the writing speed of the user (user) is determined and the allowable speed is exceeded many times, a part of the screen 281 of the electronic blackboard 2 is displayed as a model (demonstration) for practicing writing that teaches the writing speed. Display using. A user (user) can learn a writing speed that matches the performance of the electronic information board by performing operations based on the writing practice screen. By learning the writing speed of the user (user), when inputting characters, figures, etc. to the electronic information board, it is possible for the user (user) to prevent the lack of drawing of characters, figures, etc. board can be used.

In addition, the speed at which characters, bars, and the like can be drawn without blurring varies depending on the model and series of the electronic blackboard 2 . Therefore, even if you get used to the writing speed of a specific model that is difficult to chip, when using another model or series, if you write at that writing speed, the letters will be chipped. According to the electronic information board of the present embodiment, even in such a case, the user can learn an appropriate writing speed according to the model.

<Modification>
Embodiments of the electronic information board according to the present invention are not limited to the electronic blackboard 2 . For example, it may be an interactive whiteboard 700 as shown in FIG. The interactive whiteboard 700 has a touch panel display 710, and can be written on the touch panel display 710 with a pen 730 or directly with a finger. In addition, written data can be shared with other bases via the network. In addition, built-in camera 720, microphone 725, and speaker 740 are used to share video (eg, image 711) and audio of meeting participants at local and connected sites.

As shown in FIG. 8(b), the instruction may be made using figures instead of characters. For example, the sides 622, 623, 624, and 625 of the quadrangle 621 may be drawn in order from the ends and traced. As for figures, a circle such as circle 626 may be drawn and traced.

On the handwriting practice screen 610, the underbar 613 is used to indicate not the entire character (for example, "a"), but the character stroke by stroke by drawing the character on the screen. good too. In that case, the teaching unit 340 draws the character stroke by stroke on the screen based on the allowable drawing speed of the electronic blackboard 2 . Then, the user (user) traces the top in accordance with the drawing. The character drawn for each stroke is an example of a character for instruction.

In addition to popping up the writing practice screen, the speaker 250 or 740 may warn the user that the writing speed is too fast with a sound (for example, a warning sound such as boo-boo, beep-beep, etc.).

In the electronic blackboard 2 of this embodiment, all the processing is performed by the control unit 300 of the electronic blackboard 2, but some of the processing performed by the control unit 300 of the electronic blackboard 2 is distributed. good too. For example, an electronic information board system including the electronic blackboard 2 and a computing device such as a server connected to the electronic blackboard 2 via a network may be configured. In the electronic information board system, part of the processing performed by the control unit 300 of the electronic blackboard 2 of the present embodiment (for example, the character recognition unit 322, the image comparison unit 323, the missing rate calculation unit 324, the determination unit 325 etc.) may be processed by the computing device. By doing so, even if the information processing capability of the electronic information board alone is insufficient, the processing can be performed by distributing the processing.

2 electronic blackboard 310 overall control unit 320 writing speed determination unit 340 teaching unit 600 writing practice screen 610 writing practice screen 620 writing practice screen 700 interactive whiteboard

Japanese Patent No. 5481470

Claims (12)

An electronic information board on which a user can write on the screen,
a writing speed determination unit that determines whether the writing speed of the user is acceptable;
a teaching unit that teaches a writing speed when the writing speed determination unit determines that the writing speed is not permissible ,
The teaching unit displays a training screen on the screen, and displays characters or graphics on the training screen at a display speed based on an allowable writing speed. An electronic information board on which a user can write on the screen,
a writing speed determination unit that determines whether the writing speed of the user is acceptable;
a teaching unit that teaches a writing speed when the writing speed determination unit determines that the writing speed is not permissible,
The teaching unit displays a training screen on the screen, displays characters or graphics on the training screen at a display speed based on an allowable writing speed,
On the training screen, a character that serves as a model is displayed,
The teaching unit displays the figure in the vicinity of the model character.
electronic information board. The writing speed determination unit compares the written character with a character obtained by character recognition of the written character, determines whether or not there is a missing part in the written character, and 3. The electronic information board according to claim 1 , wherein whether the user's writing speed is acceptable is determined based on the number of missing portions. An electronic information board on which a user can write on the screen,
a writing speed determination unit that determines whether the writing speed of the user is acceptable;
a teaching unit that teaches a writing speed when the writing speed determination unit determines that the writing speed is not permissible,
The writing speed determination unit compares the written character with a character obtained by character recognition of the written character, determines whether or not there is a missing part in the written character, and Determine if the user's writing speed is acceptable based on the number of missing spots
electronic information board. A control method for an electronic information board in which a user can write on the screen, comprising:
determining if the user's writing speed is acceptable;
When it is determined that the writing speed is not permissible in the determination procedure, a training screen is displayed on the screen, and characters or graphics are displayed on the training screen at a display speed based on the permissible writing speed. , a procedure for teaching a writing speed, and a control method for an electronic information board. A control method for an electronic information board in which a user can write on the screen, comprising:
The written character is compared with a character obtained by character recognition of the written character to determine whether or not there is a missing portion in the written character, and based on the number of missing portions with respect to the total number of strokes input , a procedure for determining whether the user's writing speed is acceptable;
A control method for an electronic information board, comprising: a step of teaching a writing speed when the writing speed is determined to be unacceptable in the determining step. A computer with an electronic information board that allows the user to write on the screen,
determining if the user's writing speed is acceptable;
When it is determined that the writing speed is not permissible in the determination procedure , a training screen is displayed on the screen, and characters or graphics are displayed on the training screen at a display speed based on the permissible writing speed. , a procedure for teaching the writing speed,
program to run the A computer with an electronic information board that allows the user to write on the screen,
The written character is compared with a character obtained by character recognition of the written character to determine whether or not there is a missing portion in the written character, and based on the number of missing portions with respect to the total number of strokes input , a procedure for determining whether the user's writing speed is acceptable;
a step of teaching a writing speed when the writing speed is determined to be unacceptable in the determining step;
program to run the An electronic information board system comprising an electronic information board on which a user can write on a screen, and a computing device connected to the electronic information board,
a writing speed determination unit that determines whether the writing speed of the user is acceptable;
When the writing speed determination unit determines that the writing speed is not allowable, a training screen is displayed on the screen, and characters or graphics are displayed on the training screen at a display speed based on the allowable writing speed. and a teaching unit for teaching a writing speed. An electronic information board system comprising an electronic information board on which a user can write on a screen, and a computing device connected to the electronic information board,
The written character is compared with a character obtained by character recognition of the written character to determine whether or not there is a missing portion in the written character, and based on the number of missing portions with respect to the total number of strokes input , a writing speed determination unit that determines whether the writing speed of the user is permissible;
An electronic information board system, comprising: a teaching section that teaches a writing speed when the writing speed determination section determines that the writing speed is not allowable. A control method for an electronic information board system comprising an electronic information board on which a user can write on a screen, and a computing device connected to the electronic information board, comprising:
determining if the user's writing speed is acceptable;
When it is determined that the writing speed is not permissible in the determination procedure , a training screen is displayed on the screen, and characters or graphics are displayed on the training screen at a display speed based on the permissible writing speed. , a procedure for teaching a writing speed, and a control method for an electronic information board system. A control method for an electronic information board system comprising an electronic information board on which a user can write on a screen, and a computing device connected to the electronic information board, comprising:
The written character is compared with a character obtained by character recognition of the written character to determine whether or not there is a missing portion in the written character, and based on the number of missing portions with respect to the total number of strokes input , a procedure for determining whether the user's writing speed is acceptable;
A control method for an electronic information board system, comprising: a step of teaching a writing speed when the writing speed is determined to be unacceptable in the determining step.

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