CN1092371C - Device for practising Chinese character calligraphy - Google Patents

Abstract

The invention belongs to the technical field of Chinese information processing, and is a Chinese character calligraphy practice device combining microelectronic technology and Chinese character writing practice method, including a central processing unit (1), a keyboard (9), a writing input board (5), a writing pen, and a copybook Library (10), copybook display (2) and other hardware configurations and control programs operate the keyboard so that the selected Chinese character input code is converted into a standard deformation national standard code in the machine, and the corresponding font code is taken out from the copybook library, and then the Copybook word display, handwritten input word, is taken out its information code by CPU from writing control port, and copybook word is displayed simultaneously, and the difference of handwritten word and copybook word is displayed intuitively at any time.

Description

Chinese calligraphy practice device

The invention belongs to the technical field of Chinese information processing, is composed of hardware configuration and a control program for Chinese calligraphy practice, and is a device for people to practice Chinese calligraphy by copying and reading posts without paper.

From ancient times to the present, the methods of practicing Chinese calligraphy are mainly copying and reading posts. First of all, there must be a large number of sample posts, that is, a large number of paper posts. It is very inconvenient to use and collect. Method, its key is to compare the written words with the copybooks, especially the comments by experts or instructors, which is called "feedback correction". Efficiency and interest in calligraphy. With the development of computer technology, people have developed an online handwritten Chinese character recognition device. The result of online recognition technology is the recognition of Chinese characters. The focus is on the content expressed by Chinese characters. It requires recognition rate and writing speed. , but cannot compare and improve the writing artistry of Chinese characters.

The object of the present invention is to provide a Chinese character calligraphy practice device which can intuitively compare and comment on calligraphy art as it is written.

The present invention can be realized in the following ways:

The Chinese character calligraphy practice device, the hardware composition includes central processing unit, copybook and the display of handwriting input Chinese character, display control port, built-in ROM of the control program that makes the device run, the writing input board that can input Chinese character by handwriting, writing control port, data memory, Keyboard, copybook library, its features are:

a. The pen used for writing input can be a hard pen, or an elastic pen with a flexible tip;

b. The control program to make the device run is carried out as follows: (1), start; (2), preparation: including initialization and normal state prompt display, (3), keyboard input, if any key is pressed, enter the key Process, if no key is pressed, continue to detect whether the writing control port has writing input, (4), key processing, according to the coding of key, press function key and word selection key to be respectively stored in the function status cache area and word selection of digital memory The cache area is standby; (5), determine the selected word address, convert the word selection key code into the selected word address; (6), get the selected font code from the copybook storehouse and send the display cache area of the digital memory; (7), The selected word is sent to the display control port, displayed on the display, for reading and analyzing the strokes of the word; (8), entering the preprocessing program when there is input on the writing input board; (9), the preprocessing program Appropriate processing of handwriting input signals, including stroke segmentation, smoothing, denoising, space sampling and normalization of characters; (10), processed writing font codes are sent to the writing buffer area of the data memory for standby; (11), checking the function of the data memory State buffer zone, judges whether to copy state, no, directly displays font code, is, carries out copy state judgment; (12), is copy state, continues relevant processing, if not copy state, must be copy state; (13) ), because copybook word and handwriting input are displayed together due to imitation function requirement, two kinds of font codes are compounded together at this central processing unit; (14), the display cache area that composite font code is sent to data memory is prepared for showing; (15), comparative display, visually see the deviation situation of handwritten input word and copybook word at any time on display; (16), judge whether copying ends, if end, carry out comprehensive evaluation subroutine, if not end, continue to write Input, writing font code sends the display cache area of data memory; (17) temporary write state, judges whether temporary writing finishes, if finish, then compare and display subroutine, if not finish, continue to carry out writing input from writing control port; ( 18) In the early morning functional state buffer area, after completing a copybook display or writing, and copybook comparison display, the content of the functional state buffer area in the data memory is cleared for the next input record.

The comparison and display subroutine that starts to be carried out at the end of writing is carried out in the following three ways. One is to use the skeleton-one-outline Chinese character display method. One is the difference display method. In order to better show the part where the handwritten input Chinese characters are inconsistent with the copybook characters, only the part where the handwritten characters and the copybook characters do not overlap can be displayed. The other is the different color tone display method. One color tone is displayed, and the handwritten part that does not overlap with the copybook is displayed with another color tone, and the comparison is displayed in the program to judge whether it is a sound shelf—the outline display, if yes, then perform data processing, and then send it to the display for display, if it is poor If it is displayed, the data is also processed, and then sent to the monitor for display.

The comprehensive scoring subroutine is to represent the copybook word and handwritten word with vectors respectively, calculate the distance D and coincidence degree R between the two vectors, and judge the closeness of handwritten word and copybook word accordingly, and its program is carried out as follows: generate vector , the next step is to calculate the word vector index, and then to classify the writing level. The score information is sent to the display buffer area of the data storage, and then sent to the monitor for display, and then returns to the main program.

The Chinese characters stored in the copybook library of the present invention are calligraphy copybooks. Under the condition of known handwritten input Chinese characters, the coincidence degree of the handwritten characters and the copybook characters can be visually displayed, which is convenient for correction, and the reading and copying are optional. The elastic head pen similar to a brush makes calligraphy The practice is more realistic, and hard pen input is also allowed to practice hard pen calligraphy. The electromagnetic induction type, pressure sensitive type or electrostatic coupling type writing input board is used to save a lot of paper. The handwritten input words can be stored for easy analysis and summary. Means such as music and music help to strengthen the interest in calligraphy practice, simplify the keyboard, and realize device simplification.

Fig. 1 is a basic hardware configuration diagram of the present invention;

Fig. 2 is a flow chart of the control program of the present invention;

Figure 3 shows the subroutine flow for comparison.

Figure 4 is the comprehensive scoring subroutine

Fig. 5 is a schematic diagram of an elastic head pen;

Figure 6 is a schematic diagram of hardware expansion configuration;

Fig. 7 is a schematic diagram of a simple keyboard.

Example:

The Chinese character calligraphy practice device consists of a central processing unit 1, a copybook and a display 2 for handwriting input Chinese characters, a display control port 3, a RoM 4 with a built-in control program, a writing input board 5 capable of handwriting input Chinese characters, a writing control port 6, and a data memory 7 , keyboard 9, copybook storehouse 10, the pen 8 that writing input is used can be the nib that elastic material is made, and shape is as brush nib, is used for practicing brush calligraphy, or practice hard pen calligraphy with hard pen, and writing input board 5 is a piece of pressure-sensitive input The board includes a weak pressure sensor, a sensing control circuit and an A/D conversion circuit. Use special-purpose data exchange mode between it and writing control mouth 6. Writing control port 6 is made up of sensing analysis circuit, control circuit etc., and keyboard 9 is a simple keyboard, is made up of the numeral key of 0-9, a handwriting/copy selection key L/M and a start button K.

When using, first press the start button, then select the appropriate serial number (0-99) corresponding to the Chinese character according to the list of hundreds of commonly used Chinese characters provided in advance, input the serial number into the device with the number keys, and then use the selection key After the key is determined to be writing or imitating, write the Chinese characters shown on the terminal display 2 on the writing input board 5 with the pen 8, move the pen 8 downwards on the writing input board 5-L contact surface to increase, and write on the writing input board 5 The pressure area of the writing input board 5 increases, and the strokes that are finally converted into electrical signals become thicker. When the pen 8 is lifted slightly, the contact area on the writing input board 5 decreases, the pressure area on the writing input board 5 becomes smaller, and the writing strokes received by the device The thinner the signal, the weaker the signal. Therefore, strokes with variable thickness can be written according to the writing needs.

The program flow is carried out according to the following steps: (1) After pressing the start button on the keyboard, the control program in the rib M4 starts to run; (2) The preparation steps include initialization, normal status check and normal status prompt display. Component parameters, and carry out the normal state test to each component, under normal circumstances, the "normal" prompt is displayed on the display 2, indicating that the five is in a normal state, please practice calligraphy for further operations; (3) keyboard input first Determine whether each key of the keyboard is pressed, if any key is pressed, enter the key processing program, if no key is pressed, continue to detect whether the writing control port 6 has writing input, (4) key processing, according to the coding of the key, press the function key and the word selection key are respectively stored in the function state cache area and the word selection buffer area of the digital memory 7 for subsequent use, and whether the key input is judged to be completed, and the input is continued if it is not completed, and enters the next step after completion; (5) determine the selected word address, central processing Device 1 converts the word selection key code into the selected word address; (6) the font code is sent to the display buffer area, and the selected font code is sent to the display buffer area of the data memory 7; (7) the selected word is sent to the display control port 3 , displayed on the display 2; (8) writing input, judging whether there is an input on the writing input board 5, if there is an input, further processing, if there is no input, return to the situation of checking whether the keyboard is pressed; (9) Pre-processing, the handwriting input signal is properly processed, including stroke segmentation of words, smoothing, denoising, space sampling and normalization etc.; (10) the written font code that has been processed is sent to the writing buffer area of data memory 7 for standby; (11) Copying, by checking the functional state cache area of data memory 7, judge whether it is the state of copying, if the state of copying is carried out relevant operation, if not the state of copying, directly the display buffer area of font code is sent to data memory 7, is shown on display 2, Copying is divided into two states of copying and copying. Copying refers to keyboard input to find out the selected word, and display the relevant Chinese characters in the copybook on the display 2. The handwriting practitioner performs writing input according to the display. As the handwriting progresses, The written word will be displayed on the display 2 at any time by comparison with the copybook. Whether the strokes of the handwritten word overlap with the copybook word, the writing strength and the direction of the pen will immediately give prompts to the practitioner, so that the practitioner can make adjustments in time. , to improve the writing level; for writing, after the copybook words are displayed on the display 2, the handwritten inputted Chinese characters of the handwriting practitioners are displayed on the display 2 for comparison after all of them are written, which is suitable for the higher level of calligraphy; (12) copying, judging whether it is the copying state, if continuing to carry out relevant processing, if not the copying state, must be the copying state; (13) the copying process requires the central processing unit 1 to compound the copybook font code and the handwritten font code; (14) composite font code is sent to the display cache area of data memory 7, prepares for showing; (15) shows; See the deviation situation of handwriting input word and copybook word visually at any time on copybook display; (16) judge to imitate Whether finish, if finish, carry out comprehensive scoring subroutine, if do not finish, continue writing display; (17) writing font code sends the display cache area of digital memory 7, prepares for writing display; (18) judges whether to finish writing , if finish, then carry out comparison and display subroutine, transfer comprehensive scoring subroutine program afterwards, do not end, continue to carry out writing input from writing control mouth 6, present embodiment gets a kind of comparison mode, promptly skeleton one by one outline display method 2; (19) After completing a copybook display or writing one by one copybook comparison display, the function state buffer area content of data memory 7 is cleared, and the next time input record is prepared.

In order to increase the function of this device, the following devices can be added respectively or simultaneously, as shown in Figure 6, the printer interface 11 of the printer can be equipped, and the handwriting memory 12 can store the words input by handwriting before, which is convenient for centralized analysis and judgment. The speed of progress, and the deficiencies that still exist, can also be equipped with the sound output 13 of voice or music, the computer interface 14 and the calligraphy instruction ROM15 of exchanging information with other computers.

Claims (4)

1, a kind of device for practising Chinese character calligraphy, hardware is formed and is comprised central processing unit, the display of copybook and handwriting input Chinese character shows the control mouth, and interior dress makes the ROM of the control program of device operation, can the handwriting input Chinese character write tablet, write the control mouth, data-carrier store, keyboard, the copybook storehouse is characterized in that:

A, the pen of writing input usefulness can be hard-tipped pen, or written whippy spring pen;

B, the control program that device is moved carry out: (1), startup as follows; (2), prepare: comprise that initialization and normal condition prompt show, (3), keyboard input, if there is key to press, enter key is handled, if no key is pressed, the continuation detection is write the control mouth and whether is write input, and (4), key are handled, according to the coding of key, the functional status buffer area and the word selection buffer area that are stored in number storage by function key and word selection key respectively are standby; (5), determine selected word address, be the word selection key code conversion selected word address; (6), get the display buffer district that selected graphemic code send number storage from the copybook storehouse; (7), institute's word selection sent show and on display, to show control mouthful, use when analyzing the stroke literary style of word for mimic; Enter preprocessor when (8), input being arranged on writing tablet; (9), preprocessor suitably handles hand-written input signal, comprise that the stroke of word is cut apart, smoothly, denoising, spatial sampling and standardization; (10), handle write font code send data-carrier store to write buffer area standby; (11), check and the functional status buffer area of data-carrier store to judge whether the being imitation state, not, directly show font code, be that the state of imitating is judged; (12), be to imitate state, proceed relevant the processing, if not imitate state, must be to face the state of writing; (13), copybook word and handwriting input are shown together central processor is combined with each other two kinds of font codes hereinto owing to imitate functional requirement; (14), send the display buffer district of data-carrier store compound font code, for demonstration is prepared; (15), relatively show, on display, see the situation that departs from of handwriting input word and copybook word at any time intuitively; (16), judge to imitate whether finish, if finish, carry out the comprehensive grading subroutine, if finish, proceed to write input, write the display buffer district that font code send data-carrier store; (17), be to face the state of writing, judge to face to write and whether finish, if finish, then compare display subroutine, if finish, continue, write the control mouth and write input from book; (18), cleaning function state cache district, finish copybook and show or write, after copybook relatively shows, functional status buffer area content removed, get time input record ready and use.

2, device according to claim 1, it is characterized in that: the comparison display subroutine in the control program is that handwritten word and copybook word are simultaneously displayed on the display, its comparative approach is as follows: at first judge it is skeleton, profile Chinese character explicit representation, or difference explicit representation, carry out data processing then respectively, send into terminal at last and show.

3, device according to claim 1, it is characterized in that: the comprehensive grading subroutine is with copybook word and handwritten word vector representation, its step is as follows: generate vector, next step is done word and calculates to figureofmerit, doing writing level then sorts out, send the display buffer district score information again, show, return master routine at last by display screen.

4, device according to claim 1 is characterized in that: keyboard is faced by 0-9 numerical key, starting switch and one to be write/imitates the State Selection switch and constitute.

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