CN111415537A - Symbol-labeling-based word listening system for primary and secondary school students - Google Patents
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Abstract
The invention discloses a symbol-labeling-based word listening system for primary and secondary school students, relates to the technical field of intelligent education, and aims to solve the problem that a teacher and parents need to accompany in the traditional dictation education mode and consume a large amount of time and energy of the teacher and the parents. The technical scheme of the invention is characterized in that an image processing technology is utilized to obtain new words and generate a listening word database, a voice recognition technology is utilized to obtain instructions, a listening word system plays vocabulary voices in the listening word database under the instructions, a monitoring module is utilized to reduce the possibility of cheating possibly occurring in the listening and writing process, and students can independently complete the listening and writing tasks without the help of others. The invention achieves the effect of greatly simplifying the burden of teachers and parents and is beneficial to forming the self-learning ability of students.
Description
Technical Field
The invention relates to the technical field of intelligent education, in particular to a word listening system for primary and secondary school students based on symbol labeling.
Background
Education in primary and middle schools attracts high attention of people in the whole country, parents or teachers often need to listen and write words to strengthen the memory of students aiming at basic knowledge when teaching the knowledge of the students. Dictation, also known as mystery writing, is a teaching way, a person (usually a teacher or a parent to play the role) reads some words or sentences, and a student (or a child) writes corresponding words, which causes huge waste of time and energy for both the teacher and the parent.
The invention provides an automatic dictation system for machine identification and learning aiming at the requirement, and the specific operation method comprises the following steps: the user firstly marks the words in the article with specific symbols, recognizes the words by a character recognition method, stores the words into a local listening list, and then listens and writes by a voice recognition method. The students can listen and write tasks by hands, the burdens of teachers and parents are greatly simplified, the self-learning capacity of the students is formed, and the invention can generate great economic and social benefits and conform to the great trend of intelligent education.
Disclosure of Invention
The invention aims to provide a symbol-labeling-based word listening system for primary and secondary school students, which has the effects of helping students to independently finish a dictation task, greatly simplifying the burdens of teachers and parents and improving the self-learning ability of the students.
The above object of the present invention is achieved by the following technical solutions:
a word listening system for primary and secondary school students based on symbol annotation comprises a word fetching module, a voice module, a database, an evaluation module and a monitoring module; the word-taking module obtains words from the outside, wherein the words comprise actively input words and labeled words obtained by analyzing and processing through an image recognition technology;
the database comprises a listening word list, and the vocabulary and the corresponding voice acquired by the word acquisition module are stored in the listening word list;
the voice module is used for broadcasting words in the listening word list in a text-to-voice mode;
the evaluation module identifies the dictation result of the user, compares the identified characters with words in the listening word list, judges whether the characters are correct or not, and outputs a judgment result;
the word-taking module acquires the marked words through the image recognition technology and comprises the following processes:
s1, acquiring images containing vocabularies;
s2, preprocessing pictures;
s3, traversing the picture by a sliding algorithm, extracting specific features through identifying the mark symbols, positioning, extracting characters according to positions, and then identifying the characters by an OCR module;
and S4, recognizing and correcting to form the character of the final marked word.
The invention is further configured to: the system comprises a monitoring module for shooting and storing the whole dictation process of a user, wherein the monitoring module comprises an image acquisition sub-module and an eyeball tracking sub-module.
The invention is further configured to: the word-taking module comprises at least one of a keyboard, a camera and a handwriting board, and the camera is matched with an image recognition module for recognizing words contained in pictures collected by the camera.
The invention is further configured to: the voice module comprises a controller, a voice acquisition sub-module, a voice analysis sub-module and a voice listening sub-module; the voice acquisition submodule acquires a voice instruction sent by a user; the voice analysis submodule analyzes the instruction information of the voice instruction acquired by the voice acquisition submodule through a voice recognition technology and sends the instruction information to the controller; and the controller calls the vocabulary to be dictating from the listening word list according to the instruction information and sends the vocabulary to be dictating to the voice listening word submodule to broadcast the corresponding vocabulary voice.
The invention is further configured to: the voice module comprises a timing submodule, the timing submodule starts timing after the voice listening submodule broadcasts voice, when the timing duration of the timing submodule is larger than or equal to the limit time T, the controller calls the next word to be listened to from the word listening list and sends the word to be listened to the voice listening submodule to broadcast corresponding word voice, and when the controller fails to call the next word to be listened to from the word listening list, the controller controls the word listening submodule to broadcast voice representing the completion of the listening task.
The invention is further configured to: the database comprises a standard library, the standard library is used for storing difficulty coefficients corresponding to all words in the listening word list, and the limiting time T is larger when the difficulty coefficients are larger.
The invention is further configured to: the database comprises a new word bank, when the dictation result of any word is judged to be wrong by the evaluation module, the new word bank receives the word and counts the receiving times of the same word, and the word receiving list and the words in the new word bank are mutually called.
The invention is further configured to: the word-picking module of the word-picking list compares the acquired words with the existing words in the word-picking list, and the word-picking list records the new words and deletes the words in the list which are repeated with the new words.
The invention is further configured to: and the listening word list is reserved after dictation is finished, and the next listening word list can call the listening word list and carry out operations of deleting words and adding words to the listening word list.
The invention is further configured to: the device also comprises a display screen for displaying the results of the student word library, the listening word list and the evaluation module.
In conclusion, the beneficial technical effects of the invention are as follows:
1. through the arrangement of the word fetching module, the voice module, the database and the review module, the words are broadcasted from the creation of a word listening list to the control of the words through voice recognition, and finally the comparison and error judgment are carried out by the review module, and the whole dictation process can be independently completed by a student user, so that the burdens of teachers and parents are greatly relieved, the word fetching module can identify the characters marked by symbols in a targeted manner on the basis of character recognition, and the document contents of the words required to be marked by the teachers on class can be identified anytime and anywhere;
2. through the arrangement of the monitoring module, the whole dictation process is monitored by the video of the monitoring module, so that teachers and parents can call monitoring and supervising students, cheating is avoided, and the self-learning ability of the students is improved;
3. through the arrangement of the timing submodule and the standard library, different time is reserved for dictating the students according to vocabularies with different difficulty degrees, so that the problem that the dictation efficiency is low because the students stay too long time when encountering the vocabulary which is not met is avoided;
4. through the arrangement of the word banks, different word banks are created for different students, the students are helped to formulate personalized word lists, and learning is more efficient.
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FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a speech module in embodiment 1 of the present invention;
FIG. 3 is a schematic diagram showing the structure of databases in examples 1 and 2 of the present invention;
fig. 4 is a schematic structural diagram of a monitoring module in embodiment 1 of the present invention;
FIG. 5 is a flowchart of the method of example 1 of the present invention.
In the figure, 1, a word-taking module; 2. a voice module; 21. a controller; 22. a voice acquisition submodule; 23. a voice analysis submodule; 24. a speech listening sub-module; 25. a timing submodule; 3. a database; 31. listening to a word list; 32. a standard library; 33. a word stock; 4. a review module; 5. a monitoring module; 51. an image acquisition submodule; 52. and an eyeball tracking submodule.
Detailed Description
Example 1
The invention discloses a word listening system for primary and secondary school students based on symbol marking, which provides help for the primary and secondary school students to independently complete a dictation task. Referring to fig. 1, the system includes a word fetching module 1, a voice module 2, a database 3, a review module 4 and a monitoring module 5.
The word-taking module 1 is used for acquiring words from the outside, including actively inputted words and labeled words obtained by analyzing and processing through an image recognition technology. Active input may include input via a keyboard, electronic tablet (in conjunction with tablet software) or capacitive stylus (in conjunction with a touch screen display). And the still image is captured by using the camera through the image recognition technology, then the still image is analyzed and recognized, all words or marked words in the still image are obtained, and the marking symbols can be customized, such as circle drawing, wavy lines and the like. As can be seen from the above, the word fetching module 1 includes at least one of a keyboard, a camera and a handwriting board, and the camera is matched with an image recognition module for recognizing words contained in the picture collected by the camera.
When the word-taking module 1 obtains the labeled vocabulary through the image recognition technology, the method specifically comprises the following processes:
s1, acquiring images containing vocabularies, and mainly acquiring the images through a camera;
s2, preprocessing the picture, including the conventional steps of picture graying, binaryzation, inclination correction, normalization and image smoothing;
s3, traversing the picture by a sliding algorithm, extracting specific features through identifying the mark symbols, positioning, extracting characters according to positions, and then identifying the characters by an OCR module;
and S4, recognizing and correcting, such as designing a grammar detector, outputting the final character, and completing character recognition of the marked words.
In step S3, the location of the symbolic mark may specify a labeled template, such as a frame shape, a linear shape, or a circular shape, where the three shapes are findcontours function to search for the contour, boundingrcect, Hough L ines, and minEnclosingCircle function to obtain the contour range, and then the threshold parameter of the aspect ratio is set, so as to find the location of the labeled information.
Referring to fig. 2, the database 3 in the system includes an audiogram list 31, and the vocabulary fetching module 1 fetches the vocabulary and stores the vocabulary into the audiogram list 31, and calls the voice of the corresponding vocabulary in the database 3 to store the voice into the audiogram list 31. In this embodiment, the database 3 can update the vocabulary according to the learning level of the user, so as to meet the requirements of users with different culture levels. When generating the listening word list 31, the vocabulary newly acquired by the word-taking module 1 will be compared with the existing vocabulary in the listening word list 31, and if the new vocabulary is repeated, the listening word list 31 records the new vocabulary and deletes the vocabulary repeated with the new vocabulary in the list. Therefore, the problem of repeated vocabularies in the listened-to-speech list 31 is avoided, the content of the listened-to-speech list 31 is optimized, and the dictation efficiency is guaranteed.
Referring to fig. 3, the voice module 2 in the system includes a controller 21, a voice collecting sub-module 22, a voice analyzing sub-module 23, and a voice listening sub-module 24. The voice collecting sub-module 22 mainly comprises a microphone, a power amplifier and the like, and collects voice commands sent by a user, such as "next", "repeat", "volume up" and the like. The voice analysis submodule 23 analyzes the voice instruction acquired by the voice acquisition submodule 22 by using a voice recognition technique, and transmits the instruction information to the controller 21. The controller 21 performs corresponding operations according to the instruction information, that is, calls the vocabulary to be dictating from the listening word list 31 and sends the vocabulary to be dictating to the voice listening word sub-module 24 to broadcast the voice of the corresponding vocabulary. When the voice command is "next", the controller 21 calls the next word in the order of the current word in the listened-to-word list 31 and the corresponding voice, and plays the voice through the voice listened-to-word sub-module 24. When the voice command is "repeat" or "increase volume" or "decrease volume", the controller 21 calls the current vocabulary in the listener list 31 and plays the voice again. The important component of the speech listening sub-module 24 is a speaker for playing the speech of the listening word vocabulary.
The evaluation module 4 in the system is used for identifying the dictation result of the user, comparing the identified characters with the words in the listening word list 31, judging whether the characters are correct or not, and outputting a judgment result. The evaluation module 4 is matched with at least one of a camera, a handwriting board and a capacitance pen to obtain the dictation result of the user. When a user carries out dictation tasks on paper, the front of the camera is utilized to shoot the paper, static images of dictation results are obtained, recognition analysis is carried out on the dictation results according to a certain sequence by matching with an image recognition technology, and whether dictation strokes are correct or not is judged by comparing the results with words in a dictation list 31. When a user writes words on a handwriting board or a touch screen by using a capacitance pen, corresponding software recognizes handwritten characters and judges the right and wrong.
Referring to fig. 4, the monitoring module 5 in the system captures images and stores the whole dictation process of the user. The monitoring module 5 includes an image acquisition sub-module 51 and an eye tracking sub-module 52. In this embodiment, the image capturing sub-module 51 is a camera, and the camera captures all dictation processes of the user. The eyeball tracking sub-module 52 is an available technology, such as a tobbiii eye tracker, and effectively avoids cheating that a user skips and listens to relevant data in the dictation process by acquiring the movement information of eyeballs, mainly aiming at the condition that the user or teacher with poor automatic control capability has high requirement on the authenticity of the result. The eyeball tracking sub-module 52 acquires that the eyeball rotation angle meets the condition, and meanwhile, the time length after rotation meets the condition, and if the eyeball deviation angle is larger than 30 degrees and the time for keeping the state exceeds 1s, the dictation state of the user is judged to be abnormal. As an optimization scheme, for playing the role of warning the user, the system loudspeaker can be used for sending out warning sound, and abnormal records are reserved to remind a teacher or parents to check videos collected by the camera.
Referring to fig. 3, in order to improve the dictation efficiency of the student, a timing sub-module 25 is included in the voice module 2. The timing submodule 25 starts timing after the speech listening submodule 24 finishes broadcasting the speech, a limit time T is preset in the system, when the timing duration of the timing submodule 25 is greater than or equal to the limit time T, the controller 21 calls a next word to be listened to from the listening word list 31 and sends the next word to be listened to the speech listening submodule 24 to broadcast the speech of the corresponding word, namely when the listening and writing time of each word exceeds the limit time T, the system automatically broadcasts the next word. The timing submodule 25 can avoid that students stay too long when encountering the words which are not met, so that the dictation efficiency is low.
Whether the system automatically plays the next vocabulary or the user issues a voice command to control the playing of the next vocabulary, when the controller 21 fails to call the next vocabulary to be dictating from the dictation list 31, the next vocabulary is empty, and at this time, the controller 21 controls the dictation submodule to broadcast the voice representing the completion of the dictation task, such as the voice of "dictation completed" and the like.
In order to make the personalized listening word list 31, the database 3 includes a standard library 32, the standard library 32 is used for storing difficulty coefficients corresponding to the words in the listening word list 31, and the limiting time T is larger when the difficulty coefficients are larger. For example, the difficulty coefficient can be measured according to the length of the vocabulary, daily use frequency and other angles, the vocabulary is evaluated as simple, medium and difficult, and the limited time T is reasonably prolonged along with the increase of the difficulty coefficient.
The system also comprises a display screen for displaying the database 3 and the evaluation result of the evaluation module 4. Preferably, the display screen is an electronic ink screen, so that damage to the vision of the primary and secondary school students by the screen is reduced.
In this embodiment, the system has expandability, and peripherals, such as a keyboard, an electronic handwriting board (in cooperation with handwriting board software), and the like, can be expanded through an interface, so that the system can better conform to the use habits of users, and the use feeling of the users is improved. When the method is used specifically, besides taking pictures and words, words to be dictating can be input through a keyboard to finish word taking. In the dictation process, if the English vocabulary is English, whether spelling is correct or the handwriting board is written can be checked through keyboard input, and the handwriting board is used for writing the font of Chinese characters or characters with strict requirements on font such as Russian and Arabic.
The implementation principle of the above embodiment is as follows: firstly, initializing an audiogram list 31, acquiring words from the outside by the word acquisition module 1, and sequentially storing the words into the audiogram list 31 until all words to be dictating are acquired by the word acquisition module 1, and completing the creation of the audiogram list 31. When the vocabulary is stored in the listening word list 31, the database 3 will inquire the corresponding voice of the vocabulary, and store the corresponding voice into the local listening word list 31 at the same time, so as to reduce the time for inquiring the corresponding voice in the listening word process. The user starts the dictation task, and the voice module 2 sequentially obtains the voices in the listening word list 31 from the database 3 and plays the voices. When the word in the listening word list 31 is played, the dictation task is completed, and the review module 4 judges whether the user listens to the dictation and outputs a result, so that the user can look up specific wrong contents for correction.
After each vocabulary is played, the timing submodule 25 starts timing, if the user sends a voice instruction within the limited time T, the controller 21 operates according to the voice instruction, and if the limited time T is exceeded, the system controller 21 automatically acquires the voice playing of the next vocabulary, so that the word listening efficiency is improved.
The whole dictation process is recorded by the image acquisition sub-module 51, and the eyeball tracking sub-module 52 acquires the movement trace of the eyeballs of the user, so that the possibility of cheating is reduced, students can be restrained by themselves, and teachers and parents can feel relieved.
Example 2
This example differs from example 1 in that: in addition to the embodiment 1, referring to fig. 3, the database 3 includes a word stock 33, and when the dictation result of any word by the review module 4 is determined to be wrong, the word stock 33 records the word on behalf of the user, which is not fully understood by the user. After many dictation tasks, the user always fails to dictating a certain vocabulary correctly, which indicates that the vocabulary needs to be memorized, and the raw word bank 33 counts the error times of the vocabulary, so as to help the user to memorize pertinently. Specifically, when a word is entered into the word stock 33, it is checked whether the word is repeated, and if the word already exists in the word stock 33, the number of times the word is included is increased by 1. The words in the listening word list 31 and the new word library 33 are set to be mutually callable under the requirement of easy review. Firstly, the raw word library 33 must acquire the word with the dictation error from the listening word list 31 to supplement the raw word library 33; secondly, the listening word list 31 needs to obtain words from the new word library 33, so as to help the client select high-frequency wrong words from the new word library 33 for special training. As a preferred scheme, after the user confirms that the user grasps the vocabulary in the vocabulary bank 33, the vocabulary can be deleted from the vocabulary bank 33, repeated training is not needed, and the quality of the dictation task completed by the user is improved.
After dictation, the listening word list 31 is stored in the database 3, and the listening word list 31 can be called by the next listening word list 31, that is, the same listening word list 31 is trained repeatedly, and the listening word list 31 can be subjected to operations of deleting words and adding words, so as to enhance the training purpose of the listening word list 31. Preferably, three listening word lists 31 can be searched forward from the history of the listening word list 31, that is, three listening word lists 31 of the history in the database 3 can be selected from any one of the three listening word lists 31 to derive all vocabularies into the newly created listening word list 31, after the creation of the new listening word list 31 is completed, one listening word list 31 with the longest retention time in the history is deleted, and after the dictation task of the new listening word list 31 is finished, the new listening word list 31 is stored into the history.
Example 3
This example differs from example 1 in that: database 3 in this system includes listening word list 31, and in word module 1 acquireed the vocabulary and deposited it in listening word list 31, voice module 2 reported through pronunciation listening word submodule 24 after turning into pronunciation with the characters including the characters pronunciation module that changes.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A word listening system for primary and secondary school students based on symbol annotation is characterized by comprising a word fetching module (1), a voice module (2), a database (3) and a review module (4); wherein the content of the first and second substances,
the word-taking module (1) acquires words from the outside, wherein the words comprise actively input words and labeled words obtained by analysis and processing through an image recognition technology;
the database (3) comprises a listening word list (31), and the vocabulary and the corresponding voice acquired by the word acquisition module (1) are stored in the listening word list (31);
the voice module (2) is used for broadcasting words in the listening word list (31) in a text-to-voice mode;
the evaluation module (4) identifies the dictation result of the user, compares the identified characters with the words in the listening word list (31), judges whether the characters are correct or not, and outputs a judgment result;
the word-taking module (1) acquires the marked words through the image recognition technology, and the method comprises the following processes:
s1, acquiring images containing vocabularies;
s2, preprocessing pictures;
s3, traversing the picture by a sliding algorithm, extracting specific features through identifying the mark symbols, positioning, extracting characters according to positions, and then identifying the characters by an OCR module;
and S4, recognizing and correcting to form the character of the final marked word.
2. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the device comprises a monitoring module (5) for shooting and storing the whole dictation process of a user, wherein the monitoring module (5) comprises an image acquisition sub-module (51) and an eyeball tracking sub-module (52).
3. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the voice module (2) comprises a controller (21), a voice acquisition sub-module (22), a voice analysis sub-module (23) and a voice listening sub-module (24); the voice acquisition submodule (22) acquires a voice instruction sent by a user; the voice analysis submodule (23) analyzes the instruction information of the voice instruction acquired by the voice acquisition submodule (22) through a voice recognition technology, and sends the instruction information to the controller (21); and the controller (21) calls the vocabulary to be dictating from the listening word list (31) according to the instruction information and sends the vocabulary to be dictating to the voice listening word sub-module (24) to broadcast the voice of the corresponding vocabulary.
4. The system for listening words of elementary and secondary school students based on symbol labeling according to claim 3, wherein: the voice module (2) is including timing submodule (25), timing submodule (25) reports pronunciation from pronunciation listening submodule (24) and finishes timing, works as when timing submodule (25) timing duration is greater than or equal to limit time T, controller (21) calls the next vocabulary of waiting to dictating and sends to pronunciation listening submodule (24) and reports corresponding vocabulary pronunciation to listen vocabulary voice in listening word list (31), when controller (21) calls the next vocabulary of waiting to dictating from listening word list (31) and fails, controller (21) control listening word submodule reports the pronunciation that represents the completion of dictation task.
5. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the word-taking module (1) comprises at least one of a keyboard, a camera and a handwriting board, and the camera is matched with an image recognition module used for recognizing words contained in pictures collected by the camera.
6. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the database (3) comprises a standard library (32), the standard library (32) is used for storing difficulty coefficients corresponding to all words in the listening word list (31), and the limiting time T is larger when the difficulty coefficients are larger.
7. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the database (3) comprises a word library (33), when the dictation result of any vocabulary is judged to be wrong by the evaluation module (4), the word library (33) receives the vocabulary and counts the receiving times of the same vocabulary, and the vocabulary in the word listening list (31) and the word library (33) is mutually called.
8. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the word-taking module (1) is used for obtaining words in the word-taking list (31) and comparing the words with the words existing in the word-taking list (31), and the word-taking list (31) receives and records new words and deletes words in the list which are repeated with the new words.
9. The system for listening words of elementary and secondary school students based on symbol marking as claimed in claim 8, wherein: and the listening word list (31) is kept after dictation is finished, and the next listening word list (31) can call the listening word list (31) and delete and add words to the listening word list (31).
10. The system for listening words of elementary and secondary school students based on symbol annotation as claimed in claim 1, wherein: the system also comprises a display screen for displaying the database (3) and the evaluation result of the evaluation module (4).
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| WO2021036823A1 (en) * | 2019-08-30 | 2021-03-04 | 北京字节跳动网络技术有限公司 | Text processing method and apparatus, and device and medium |
| CN112672183A (en) * | 2020-12-30 | 2021-04-16 | 南京伯索网络科技有限公司 | Method and system for supervising voice grouping discussion in live classroom |
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