JP2024036980A - electronic blackboard system - Google Patents

Abstract

[Problem] The objective of the present invention is to provide an electronic whiteboard system that can be installed at a relatively low cost and that can realize the GIGA School Initiative, which combines lessons using chalkboards, a teaching method familiar to both children/students and teachers, with ICT lessons using electronic whiteboards, which have recently become rapidly more functional. [Solution] An LCD monitor 3 equipped with computer functions and a board 2 for writing are installed adjacent to each other, and a projector 4 is attached to the board 2 for writing, and the projector 4 has a mirroring projection function for the screen of the LCD monitor 3. The LCD monitor 3 further includes a mobile terminal 5 connected via Wi-Fi, and the LCD monitor 3 is capable of mirroring projection of the screen of the mobile terminal 5. [Selected Figure] Figure 2

Description

The present invention relates to an electronic whiteboard system, and more particularly to an electronic whiteboard system for realizing the GIGA school concept.

Following the announcement of the implementation package for the GIGA school concept in 2019, in-school LANs have been established at each school, and the introduction and utilization of school ICT is progressing rapidly. The essence of this GIGA School concept is to create an educational ICT environment that is individualized to each child and student and fosters creativity. Specifically, each child/student will be given a learner terminal (tablet), and classes will be held using electronic blackboards provided in each classroom.

However, each classroom is equipped with a blackboard, and lessons in schools have been based on writing on the blackboard for a long time, and it is a teaching method that is familiar to both students and teachers, and even if ICT education Even if you progress, it's hard to give up. On the other hand, providing an electronic blackboard in addition to a conventional blackboard for each classroom has limitations in terms of budget and installation space. In particular, it was extremely difficult and unrealistic to introduce a large electronic blackboard to replace the blackboard.

Therefore, it has been considered to make the board an electronic blackboard (interactive) by using an existing blackboard or whiteboard and installing a projector above the board to project images onto the board. In that case, in order to solve the problem of narrow projection range, proposals have been made to make the projector movable left and right so that the projection position can be changed (Japanese Patent Laid-Open Nos. 2021-128299 and 2018-189925). Public bulletin).

JP 2021-128299 Publication Japanese Patent Application Publication No. 2018-189925

In the case of the above-mentioned method of converting an existing blackboard or whiteboard into an electronic blackboard by installing a projector, there is a problem that the projected image is not clear and difficult to see, especially for students sitting in the back seats. There is a problem in that the teacher gets in the way while the students are writing on the board, making it difficult to see what they are writing (see Figure 5). Furthermore, there is the unsatisfying feeling of not being able to take advantage of the functions of electronic whiteboards, which are rapidly becoming more sophisticated in recent years.

The present invention was made in view of the above-mentioned problems with conventional systems, and it can be installed at a relatively low cost and is a teaching method that is familiar to both students and teachers. Our objective is to provide an electronic blackboard system that makes it possible to realize the GIGA school concept, which combines ICT lessons using electronic blackboards, which are rapidly becoming more sophisticated.

The invention according to claim 1 for solving the above problem comprises a liquid crystal monitor equipped with a personal computer function and a board for writing on a board, which are installed adjacent to each other, and the content written on the board for writing on the board can be imported into the liquid crystal monitor. This is an electronic whiteboard system that is characterized by:

In one embodiment, a sensor for detecting a writing device such as chalk and a movement of erasing the blackboard is provided at the peripheral edge of the writing board.

The invention according to claim 3 for solving the above problem comprises: a liquid crystal monitor equipped with a personal computer function and a board for writing on a board are installed adjacent to each other, and a projector is attached to the board for writing on the board, and the projector is arranged to This electronic whiteboard system is characterized by having a mirroring projection function for a monitor screen.

In one embodiment, the device further includes a mobile terminal connected to the liquid crystal monitor via Wi-Fi, and the liquid crystal monitor is capable of mirroring projection of the screen of the mobile terminal.

In one embodiment, the liquid crystal monitor has a function of sequentially converting display contents of the board for writing including board writing into a QR code (registered trademark) and displaying the sequentially updated QR code (registered trademark) on the screen.

In one embodiment, the projector has a 16:6 wide projection capability and a brightness of 4500 lumens.

In one embodiment, the liquid crystal monitor is installed movably from a position where it does not overlap the writing board to a position where it partially overlaps the writing board. In another embodiment, the liquid crystal monitor is fixed at a position that does not overlap the writing board or a position that partially overlaps the writing board.

In one embodiment, the liquid crystal monitor has an automatic formatting function for handwritten characters.

The present invention is as described above, and can be installed at a relatively low cost and can be used for teaching using blackboards, which is a teaching method that is familiar to both students and teachers, and ICT using electronic blackboards, which are rapidly becoming more sophisticated in recent years. It makes it possible to realize the GIGA school concept, which integrates lessons, and also eliminates the problem of the teacher getting in the way while writing on the board, making it difficult to see what the teacher is writing.

FIG. 1 is an image diagram showing the configuration of an electronic whiteboard system according to a first invention. FIG. 7 is an image diagram showing the configuration of an electronic whiteboard system (liquid crystal monitor movable type) according to a second invention. FIG. 3 is a perspective view showing an example of a moving mechanism for a liquid crystal monitor in the electronic whiteboard system according to the present invention. FIG. 7 is an image diagram showing the configuration of an electronic whiteboard system (liquid crystal monitor fixed type) according to a second invention. FIG. 2 is an image diagram showing problems with a conventional electronic whiteboard system.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the accompanying drawings. The electronic whiteboard system according to the first invention comprises a liquid crystal monitor 3 equipped with a computer function and a board 2 for writing on a blackboard, which are installed adjacent to each other on a front wall 1 of a room such as a classroom. The feature is that the contents can be taken into the liquid crystal monitor 3. Although not shown in Figure 1, in order to realize the GIGA school concept, in addition to the above configuration, a teacher terminal 5 handled by the teacher, and a student terminal 6 provided for each student. (See Figures 2 and 4). Usually, the teacher's terminal 5 is a tablet or a smartphone, and the student's terminal 6 is a tablet. The teacher terminal 5 and the student terminal 6 are connected to the liquid crystal monitor 3 via Wi-Fi, and settings are made to enable mutual communication between the liquid crystal monitor 3 and each terminal.

As the writing board 2, there are cases where an existing blackboard or whiteboard is used as is, cases where the surface material of the existing blackboard or whiteboard is replaced, and cases where a newly installed writing board is used. In either case, it is possible to write on it with chalk or the like and erase it with a blackboard eraser, similar to conventional blackboards. As the surface material, it is recommended to use enameled steel plate, which has excellent durability. The writing board 2 is usually fixed to a wall, but may be configured to be movable up and down electrically or manually. As a configuration for this purpose, an existing and well-known configuration can be adopted.

Further, the LCD monitor 3 is preferably a 4K compatible 65-inch, 75-inch, or 86-inch one, has a computer function and a TV function, and can save various data using a cloud storage function. . By using the large liquid crystal monitor 3 in this way, it becomes possible to view clear images as they are.

In order to enable the liquid crystal monitor 3 to capture the contents written on the board 2 for writing on the board, a sensor (not shown) is provided at the periphery of the board 2 for detecting the movement of a writing instrument such as chalk and a blackboard eraser. be done. As this sensor, an infrared cut-off type sensor similar to that used in liquid crystal monitor type electronic whiteboards can be used. An output signal corresponding to the content written on the board from the sensor is taken into the liquid crystal monitor 3, digitized and stored, and the content written on the board is displayed on the liquid crystal monitor 3 as it is.

In this way, in the first invention, it is necessary to provide a sensor on the board 2 for writing on the board 2 in order to input the contents written on the board to the LCD monitor 3. Therefore, the board 2 for writing on the board 2 in the first invention cannot be used as an existing one. It is preferable that it be newly produced. In that case, it is also possible to further arrange icons for touch operation on the board 2 for writing. It is also possible to prepare two short writing boards 2 and connect them to both sides of the liquid crystal monitor 3 (see FIG. 1).

In the case of the electronic blackboard system according to the first invention, when the teacher is writing on the writing board 2, the students cannot directly check the content written on the writing board 2 because the teacher gets in the way. Since the content written on the board is displayed as is on the liquid crystal monitor 3, the student can immediately check the content written on the board by looking at the liquid crystal monitor 3.

As described above, in the first invention, the content written on the board 2 is captured onto the LCD monitor 3 and projected by mirroring, but conversely, the content displayed on the LCD monitor 3 is projected onto the board 2. It is not possible. In the second invention using a projector described below, this becomes possible. That is, in the electronic whiteboard system according to the second invention, an LCD monitor 3 equipped with a computer function and a board 2 for writing on a board are installed adjacent to each other on the front wall 1 of a room, and a projector 4 is attached to the board for writing on the board 2. The projector 4 is characterized by having a mirroring projection function for the screen of the liquid crystal monitor 3 (see FIG. 2).

Preferably, the projector 4 has a 16:6 ultra-wide projection function and has a brightness of 4500 lumens. The projector 4 is attached to the front wall 1 via an attachment arm at the center of the upper side of the board 2 for writing on the board 2, or facing the center of the board 2 for writing on the board 2. The projector 4 is capable of screen mirroring of the liquid crystal monitor 3. When using a projector 4 equipped with this mirroring function, for example, a dedicated application provided by the projector manufacturer is installed on the liquid crystal monitor 3.

In addition, when using a projector 4 that does not have such a function, connect a streaming device, which is a device that has a casting function and a mirroring function, to the projector 4 via HDMI (registered trademark), and connect the LCD monitor 3 and Connect the mobile terminal 5 via Wi-Fi. As a streaming device, it is recommended to use Google's Chromecast, which is widely available and inexpensive. Note that the cast function referred to herein is a function that causes the video being viewed, which is transferred from the liquid crystal monitor 3 or the mobile terminal 5 to the streaming device, to be projected onto the writing board 2 via the projector 4 in a larger size. Further, the mirroring function is a function that allows a content screen stored on the liquid crystal monitor 3 or the mobile terminal 5 to be directly projected onto the writing board 2 via the projector 4 so that the screen can be shared.

The liquid crystal monitor 3 is equipped with template software, and a wide variety of templates such as squares, staff scores, keyboards, soccer courts, and others are provided. Teachers can select the desired template and fill in the necessary information on it using a stylus or with their fingertips. The written contents are enlarged and projected onto the writing board 2 via the projector 4, so that even the students in the last row can clearly see them. Since the teacher's writing work is performed on the liquid crystal monitor 3, the teacher does not get in the way of the enlarged projection surface of the writing board 2.

It is also possible to project a template onto the writing board 2 and write on it with chalk or the like. As in the case of the first invention, a sensor (not shown) for detecting the movement of a writing instrument such as chalk and a blackboard eraser is provided on the peripheral edge of the board 2 for writing on the board, so that the contents of the board can be displayed on the LCD. It becomes possible to import the data to the monitor 3 and to save it.

The liquid crystal monitor 3 can have a function of sequentially converting display contents including board writing into a QR code (registered trademark) and displaying the sequentially updated QR code (registered trademark) on the screen. The QR code (registered trademark) is enlarged and projected onto the writing board 2 via the projector 4, so students can check the lesson content later by reading it with the QR camera on the student terminal 6. becomes. Furthermore, the liquid crystal monitor 3 can be equipped with an automatic formatting function for handwritten characters. In order to provide these functions, the liquid crystal monitor 3 has dedicated software installed thereon.

The LCD monitor 3 is attached to the front wall 1 adjacent to the board 2 for writing on the board, but in one embodiment, the LCD monitor 3 is mounted on the front wall 1 adjacent to the board 2 for writing on the board. It is movably installed in a position overlapping a part of the board 2. For example, the moving mechanism includes a base frame 11 fixed to the front wall 1, a swing frame 12 rotatably supported on the base frame 11, and a pivot frame 12 pivoted on the end of the swing frame 12 via a support shaft 14. The LCD monitor 3 has its back surface fixed to the fixing plate 13, so that it can swing together with the fixing plate 13 about a support shaft 14 (see FIG. 3).

The base frame 11 is a rectangular metal frame, and pivot supports 15 are arranged at the center of its upper and lower sides, and are attached to the top and bottom of one side of the rotating frame 12, which is also a rectangular metal frame. The shaft portion 16 is pivotally supported. In this way, the rotating frame 12 rotates 180 degrees using its upper and lower long sides as radii, and moves the LCD monitor 3 from a position where it does not overlap with the writing board 2 shown in FIG. 2 to a position where it partially overlaps with the writing board 2. to enable rotational movement. During the turning movement, the liquid crystal monitor 3 can swing via the support shaft 14, so that it can always be moved facing forward. Note that the rotating frame 12 can be stopped at any position without being moved to its end of rotation, and the LCD monitor 3 can be turned in any desired direction, that is, in a direction that is easy for all students to see. I can do it. If the liquid crystal monitor 3 is arranged at a position that does not overlap the board 2 for writing on the board, a sufficient space for writing on the board can be secured.

When implementing the electronic whiteboard system according to the present invention in an educational setting, contents such as teaching materials are created, edited, and stored on the mobile terminal 5. As teaching materials, commercially available electronic teaching materials or teaching materials provided free of charge can be installed and used as they are, or teachers can use their own customized teaching materials. Furthermore, the screen of a television, YouTube (registered trademark), etc. can also be used. The teaching materials to be used can also be created and edited using a separate PC and stored in the mobile terminal 5.

The teacher operates the mobile terminal 5 at hand (operation with one hand is possible) at a position away from the board 2, and enlarges and mirrors the content screen selected and displayed on the display section of the mobile terminal 5 on the LCD monitor 3. It can also be further enlarged and mirrored onto the writing board 2 via the projector 4. These days, many people, regardless of age or gender, are accustomed to operating smartphones, so operating the mobile terminal 5 is not at all difficult. Since the projector 4 can project a large image corresponding to the size of the writing board 2, students sitting in the back seats can also see it clearly on the large screen.

For example, it is possible to project a template image such as a staff score onto the writing board 2 and write on the image with chalk. In addition, the projection position can be slid to the left, center, or right depending on the content of the lesson, or two screens can be projected on the left and right, making the lesson progress very smoothly. For example, it is possible to project the electronic textbook screen on the left and thumbnails of students' answers on the right, and by comparing them, you can check various ideas, encourage new awareness, and lead to the creation of new ideas. can be expected. Furthermore, videos and photos taken in real time by the mobile terminal 5 can be projected on the spot, and can be written on the screen with a stylus pen or fingertip, and can also be saved.

Conventionally, expensive electronic pens have been used exclusively for writing on electronic blackboards (including electronic blackboards using a projector). This electronic pen is used to operate a Windows PC on the screen, but under the GIGA school concept, various OS terminals have been supplied, and the deployment rate of Windows PCs has decreased considerably. For teachers who are used to writing on the board with chalk, writing with an electronic pen can be stressful. In addition, electronic pens do not have any problems when the writing surface is smooth, like a whiteboard, but when writing on a rough writing surface like a blackboard, it is difficult to write, and the problem is that they wear out rapidly, and the battery runs out. The need for electronic pens is becoming less and less necessary due to problems such as malfunctions that cause classes to be interrupted and students to lose their concentration.

In the case of the electronic blackboard system according to the present invention, the board 2 for writing and the LCD monitor 3 are installed side by side, so the teacher can write on the board 2, which is mainly a blackboard, with chalk, and the LCD monitor 3 can be written on the smartphone. Since it can be operated using the same stylus pen operation or touch operation, it is no longer necessary to use an electronic pen, which can cause stress and interruption of classes due to problems. Not having to use an expensive electronic pen is economically advantageous.

In the above embodiment, the LCD monitor 3 is configured to be movable from a position where it does not overlap the board 2 for writing on the board to a position where it partially overlaps the board 2. Alternatively, it may be fixedly installed at a position overlapping a part of the writing board 2 (see FIG. 4).

In any of the above embodiments, the teacher stands in front of the LCD monitor 3 and writes on the LCD monitor 3 or the mobile terminal 5, and the contents are projected directly onto the writing board 2 via the projector 4. Therefore, the teacher's body does not get in the way while writing and makes it difficult to see the written content on the writing board 2.

The present invention is as described above, and can be installed at a relatively low cost and can be used for teaching using blackboards, which is a teaching method that is familiar to both students and teachers, and ICT using electronic blackboards, which are rapidly becoming more sophisticated in recent years. It has the effect of realizing the GIGA school concept that combines classes and has great industrial applicability.

1 Front wall
2 Blackboard 3 Electronic blackboard 4 Projector 5 Teacher's mobile terminal 6 Student's mobile terminal

Claims (9)

An electronic blackboard system comprising a liquid crystal monitor equipped with a personal computer function and a board for writing on a blackboard, which are installed adjacent to each other, and the content written on the board for writing on the blackboard can be taken into the liquid crystal monitor. 2. The electronic blackboard system according to claim 1, wherein a writing device such as chalk and a sensor for detecting movement of a blackboard eraser are provided at the peripheral edge of the blackboard. A liquid crystal monitor equipped with a computer function and a board for writing on a board are installed adjacent to each other, and a projector is attached to the board for writing on the board, and the projector has a mirroring projection function of the screen of the liquid crystal monitor. electronic blackboard system. 4. The electronic whiteboard system according to claim 3, further comprising a mobile terminal connected to the liquid crystal monitor via Wi-Fi, wherein the liquid crystal monitor is capable of mirroring projection of the screen of the mobile terminal. 4. The liquid crystal monitor according to claim 1 or 3, wherein the liquid crystal monitor has a function of sequentially converting display contents of the board for writing including board writing into a QR code (registered trademark) and displaying the sequentially updated QR code (registered trademark) on the screen. The electronic blackboard system described. 4. The electronic whiteboard system according to claim 3, wherein the projector has a 16:6 wide projection function and a brightness of 4500 lumens. 4. The electronic whiteboard system according to claim 1, wherein the liquid crystal monitor is movably installed from a position not overlapping the writing board to a position overlapping a part of the writing board. 4. The electronic whiteboard system according to claim 1, wherein the liquid crystal monitor is fixedly installed at a position that does not overlap the writing board or a position that partially overlaps the writing board. 4. The electronic whiteboard system according to claim 1, wherein the liquid crystal monitor has an automatic formatting function for handwritten characters.