CN101976523B - Embedded multimedia system based writing practice board system and writing practice method - Google Patents

Abstract

The invention belongs to the technical field of multimedia teaching equipment, in particular to a handwriting practice board system and a handwriting practice method based on an embedded multimedia system. The calligraphy practice board system includes: a calligraphy practice board body; a touch screen installed on the calligraphy practice board body, the touch screen can sense the user's touch and generate a position signal, and can also display information; accommodated in the calligraphy practice board body and An embedded system electrically connected to the touch screen, capable of receiving the position signal from the touch screen and converting it into handwriting information. The calligraphy practice method uses the above-mentioned calligraphy practice board system to guide the calligraphy practice. The invention can increase the fun of handwriting practice and improve the effect of handwriting practice.

Description

A calligraphy practice board system and calligraphy practice method based on an embedded multimedia system

technical field

The invention belongs to the technical field of multimedia teaching equipment, and in particular relates to a guided calligraphy practice board and a calligraphy practice method based on an embedded multimedia system.

Background technique

Writing is one of the basic means of social communication. A beautiful handwriting can usually leave a good impression on others and often bring unexpected career opportunities. However, due to the boring and inefficient process of traditional handwriting practice, people often lose interest in the process of handwriting practice and give up. At present, existing handwriting boards mainly include: 1. a whiteboard based on ink writing, or a blackboard based on chalk; 2. a magnetic writing board based on magnetic materials. However, these handwriting boards are all based on traditional passive methods and cannot actively guide users, so the efficiency is not ideal.

Contents of the invention

In view of this situation, the purpose of the present invention is to provide a guiding type practice board and a method for practicing calligraphy that can actively guide users to write.

The handwriting board system provided by the present invention includes:

calligraphy board body;

A touch screen, installed on the main body of the calligraphy training board, the touch screen can sense the user's touch and generate a position signal, and the touch screen can also display information; and

The embedded system is accommodated in the calligraphy board body and is electrically connected with the touch screen. The embedded system can receive the position signal from the touch screen and convert it into handwriting information.

In the present invention, the embedded system further includes a memory for storing the handwriting information.

In the present invention, the embedded system controls the guide information displayed on the touch screen when the user practices calligraphy.

In the present invention, a speaker is also included. When the user is practicing calligraphy, the embedded system controls the speaker to prompt the user.

In the present invention, the touch screen can also sense the pressure signal generated by the user's touch, and the embedded system can receive the pressure signal from the touch screen and convert it into pen force information.

The present invention also provides a method for collecting handwriting information, the method comprising the following steps:

Wait for the user to write on the touch screen;

When the user writes on the touch screen, a position signal is generated and transmitted to the embedded system;

The embedded system receives the position signal and converts it into handwriting information and stores it in the memory.

In the present invention, the embedded system stores the handwriting information and corresponding characters in the memory.

The present invention also provides a method for guiding users to practice calligraphy, which includes the following steps:

The user selects the text to be practiced;

When the user writes on the touch screen, a position signal is generated and transmitted to the embedded system;

The embedded system receives the position signal and converts it into current handwriting information;

Read expert handwriting information from memory;

The embedded system guides the user in real time according to the current handwriting information and the expert handwriting information.

In the present invention, the real-time guidance refers to controlling the touch screen to display guidance information.

In the present invention, the real-time guidance may also refer to controlling the speaker to prompt the user.

In the present invention, the real-time guidance means that the system compares and analyzes the current handwriting information and the expert's handwriting information, so as to provide reference or give suggestions to the user.

The present invention changes the traditional passive and boring way of calligraphy practice, and realizes a very convenient and efficient active calligraphy practice method with the help of modern electronic technology and multimedia technology, thereby greatly improving the effect of calligraphy practice and making the process of calligraphy practice interesting And vivid.

Description of drawings

Fig. 1 is a hardware block diagram of a handwriting practice board system according to an embodiment of the present invention.

Fig. 2 is a block diagram of an embedded system adopted by the handwriting practice board system according to an embodiment of the present invention.

Fig. 3 is an operation flowchart of the handwriting capture software of the handwriting practice board system according to an embodiment of the present invention.

Fig. 4 is an operation flowchart of the handwriting comparison and analysis software of the handwriting practice board system according to an embodiment of the present invention.

Fig. 5 is an operation flowchart of the handwriting comparison software of the handwriting practice board system according to an embodiment of the present invention.

Detailed ways

In one embodiment, the hardware block diagram of the calligraphy training board system is shown in FIG. 1 . In one embodiment, the calligraphy practice board system may include a calligraphy practice board body 1 , a touch screen 2 and an embedded system 5 . The calligraphy practice board body is used to accommodate the various components of the calligraphy practice board system. The touch screen 2 is installed on the calligraphy board body 1 . The embedded system 5 is installed inside the calligraphy training board body 1 and electrically connected with the touch screen 2 .

The touch screen 2 is a pressure sensitive touch screen. The touch screen can be a grayscale or color touch screen. Preferably, the touch screen is a color touch screen. More preferably, the touch screen is a color LCD pressure-sensitive touch screen. The touch screen can adopt any touch screen known in the art. The touch screen can have a high resolution to provide better visual effects. Preferably, the resolution of the touch screen is 320*240. In one embodiment, the touch screen 2 can sense the touch position and convert it into an electrical signal. Preferably, the touch screen 2 can also measure the magnitude of the touch pressure and convert it into an electrical signal.

In one embodiment, the system can also include a power switch 3 to control the connection between the calligraphy board system and the power supply. The power supply can be DC or AC. Preferably, the power source can be a power source located inside the calligraphy practice board system, such as a battery, an electric board, and the like. Alternatively, the power supply can also be an external power supply, such as a power adapter. In one embodiment, the power switch 3 is an oval button switch with a long life surface. In another embodiment, the power switch 3 can have a delay shutdown function, and automatically shuts down when there is no action for the set time of the handwriting board, so as to realize energy saving.

In one embodiment, the system does not include a power switch 3, and the connection between the calligraphy board system and the power supply is controlled by other means (such as connecting the power cord directly to the power interface).

In one embodiment, the system also includes a calligraphy practice pen 4 . The user can use the calligraphy pen 4 to operate the touch screen, and the touch screen can sense the position of the calligraphy pen. The handwriting pen 4 can be any known touch pen, for example. Preferably, the calligraphy pen 4 adopts high-strength plastic design. Preferably, the calligraphy practice pen 4 simulates the shape and weight of a real ballpoint pen or fountain pen, thereby improving the calligraphy practice effect of the whole system.

In one embodiment, the system may not include the calligraphy pen 4 . Users can use their fingers (or other body parts or other objects) to directly operate the touch screen 2 .

The embedded system 5 is a system for receiving and processing data. In one embodiment, the embedded system 5 may adopt an embedded platform based on ARM9. In one embodiment, the embedded system 5 can adopt the structure shown in FIG. 2 .

The embedded system 5 may include a processor 7, which is connected to the touch screen 2 and capable of signal communication. The processor 7 is any suitable processor that can perform data processing functions. In one embodiment, the processor 7 is a microprocessor. Preferably, the processor may be a Samsung S3C2440A-40 with a main frequency of 400MHz and a core of 920T.

In one embodiment, the embedded system 5 may include a memory 8, which may be an electrically erasable programmable read-only memory, for storing data. For example, the processor converts the obtained signal into storable handwriting information and stores it in the memory 8. In addition, the program for processing the data is also stored in the memory, and is called by the processor when the system is running. Alternatively, the program can be solidified into the embedded system 5 . In one embodiment, the memory 8 is a Flash memory. Preferably, the memory adopts 128MB of SDRAM and 256MB of 256byteNand Flash memory.

The embedded system 5 may also include a sound prompting mechanism. In one embodiment, the sound prompting mechanism may include a sound card 9 and a speaker 10. When the system is running, the processor 8 drives the sound card 9 to generate a voice signal, and then drives the speaker 10 to emit sound, which prompts and assists the calligraphy practice process. role. In one embodiment, the sound prompt mechanism may include a sound card 9 and a speaker 10 , the processor drives the sound card 9 to generate a voice signal, and then drives the speaker 10 to emit sound.

The embedded system 5 may include a wireless network card 11, through which the function of surfing the Internet can be realized, and software upgrade can be realized through the network. Preferably, the network card is a wireless network card with a network speed of 10M.

The embedded system 5 can include a USB interface circuit 12 . The USB interface circuit 12 can be used for software upgrading of the embedded system, and can also be used for transferring other data, such as handwriting information and the like. Preferably, a USB2.0 standard high-speed USB interface circuit is used.

The embedded system 5 may include a touch screen drive circuit 13 to drive the LCD pressure-sensitive touch screen to capture the trajectory of the handwriting pen and the pressure of the action. Preferably, a color drive circuit with a resolution of 320×240 is used.

The calligraphy board system can also include a power supply 6, which is connected to the processor and the touch screen to provide power to them. In one embodiment, the power source can be DC, AC or a combination of both. Preferably, the power source is a battery.

Referring to FIG. 3 , FIG. 4 and FIG. 5 , the method of collecting handwriting information and the method of actively guiding users to practice handwriting will be described below.

A method of collecting handwriting information is described with reference to FIG. 3 .

After the operation starts, the touch screen waits for the user's touch (through a writing pen or other tools, such as fingers, etc.), that is, waiting for a writing operation. Upon detecting a user's touch, the touch screen 2 senses position information of the user's touch and converts it into a position signal. Preferably, the touch screen can also sense the pressure of the user's touch and convert it into a pressure signal.

Then, the touch screen 2 sends the signal it senses to the embedded direction system 5 . The embedded system 5 receives the signal sensed by the touch screen 2 and processes the signal to obtain information related to writing. For example, the handwriting information written by the user can be obtained by processing the position signal. Preferably, the pen force information written by the user can be obtained by processing the pressure signal. Preferably, the embedded system 5 displays the handwriting information and pen force information on the touch screen 2, so as to display the text being input by the user in a "what you see is what you get" mode. For example, the handwriting information can be displayed as the stroke of the corresponding character, and the stroke information can be displayed as the thickness of the stroke.

Then, the handwriting information and the stroke information (if any) are stored in the memory of the embedded system 5 . Before or after the operation starts, the user can select the specific character for which the handwriting information is aimed at, so that the character and the corresponding handwriting and writing force information are simultaneously saved in the database of the memory 8 .

In another embodiment, the user can repeat the above-mentioned process, so as to collect multiple times of information on the same character, and process the multiple times of information to obtain the best handwriting and stroke data. For example, the digital information may be statistically processed to obtain the best data, or the data of a certain time may be selected by the user as the best data. Preferably, the handwriting and writing power information can be entered by experts. Preferably, the handwriting and stroke power information can be shared among multiple calligraphy board systems.

Referring to FIG. 4, FIG. 4 describes a method for actively guiding users to practice calligraphy.

When the operation starts, the user selects the text to practice. For example, the text that wants to practice is selected by the touch screen 2 of the handwriting board system. The embedded system 5 reads the expert's handwriting information and stroke information (if any) from the database stored in the memory 8 and displays it on the touch screen 2 . The expert's handwriting information may be entered by the user through the method mentioned above. It can also be stored in other ways, for example, using the handwriting data generated on the PC or the existing handwriting database. Preferably, the writing style of the text can be displayed on the touch screen 2 in the form of a navigation animation.

When a user writes on the touch screen, the touch screen 2 senses the user's touch, converts it into an electrical signal (such as a handwriting signal) and sends it to the embedded system 5 . The embedded system 5 receives signals from the touch screen 2 and processes them to display on the touch screen 2 as handwriting (and pen force) information, as mentioned above. Preferably, the embedded system 5 saves the handwriting (and pen force) information into a database in the memory 8 for analysis. At the same time, according to the current handwriting (and writing power) information and expert handwriting (and writing power) information, the user is guided in real time. In one embodiment, the embedded system 5 guides the user's writing by controlling the brightness and pattern of the light spots on the touch screen. For example, the brightness of the light spot in the direction where the user should move the pen next can be increased (or flashed) to guide the direction of the user's pen movement. In addition, the thickness of the strokes formed by the light spots in the direction of the pen movement can also be used to indicate the strength of the pen movement that the user should have. Preferably, the strokes that the user will use next can be played as an animation. Through the active guidance to the user, the joy of the user's practice is increased, and the accuracy of the practice can be increased.

Alternatively or additionally, the guidance to the user may also be in the form of voice prompts. For example, under the control of the embedded system 5 , the speaker 10 guides the user's next action (such as the direction of pen movement, the ups and downs of the pen, etc.).

Figure 5 describes the analysis method for the handwriting practice process: after all strokes are completed, the embedded system 5 can compare and analyze the user's practice data this time with the expert data or historical data saved in the system, thereby providing reference for the user or suggest. For example, similarity analysis of written characters is given.

As mentioned above, the handwriting practice board and the method of collecting handwriting information and guiding users to practice calligraphy provided by the present invention increase the fun of calligraphy practice for users and improve the effect of calligraphy practice.

Claims (5)

1. A calligraphy practice board system is characterized in that, the calligraphy practice board system comprises: calligraphy board body; A touch screen, installed on the body of the calligraphy training board, the touch screen can sense the user's touch and generate a position signal, and the touch screen can also display information; and An embedded system, accommodated in the calligraphy training board body and electrically connected to the touch screen, the embedded system can receive the position signal from the touch screen and convert it into handwriting information; The touch screen is also used to sense the pressure signal generated by the user's touch, and the embedded system receives the pressure signal from the touch screen and converts it into pen force information; Wherein when the user is practicing calligraphy, the embedded system controls the touch screen to display guide information, and the guide information actively guides the user to write in real time; the active real-time guide is to play the next strokes of the pen as animation to guide them stroke by stroke the user writes; The embedded system controls the guide information displayed on the touch screen when the user is practicing handwriting, and guides the user to write by controlling the brightness and style of light spots on the touch screen. 2. The handwriting practice board system according to claim 1, wherein said embedded system further comprises a memory to store said handwriting information and brush strength information. 3. a method for collecting handwriting information, is characterized in that, described method comprises the following steps: Wait for the user to write on the touch screen; When the user writes on the touch screen, generate a position signal and transmit it to the embedded system; and The embedded system receives the position signal and converts it into handwriting information and stores it in the memory, wherein the handwriting information can be used to actively guide the user to write in real time, and the active real-time guidance is to play the next stroke of the pen as an animation Thereby guiding the user to write one by one. 4. The method according to claim 3, wherein the handwriting information and corresponding characters are stored in the memory. 5. A method for guiding users to practice calligraphy based on the described calligraphy board system of claim 1, wherein the method comprises the following steps: The user selects the text to be practiced; When the user writes on the touch screen, a position signal is generated and transmitted to the embedded system; The embedded system receives the position signal and converts it into current handwriting information; reading expert handwriting information from memory; and The embedded system carries out active real-time guidance to the user according to the current handwriting information and the expert handwriting information; the active real-time guidance refers to controlling the touch screen to display guidance information, and playing the following strokes as animation so that Guide the user to write stroke by stroke.