1. A handwriting processing method is characterized by comprising the following steps: the intelligent pen is applied to writing by matching with the working paper printed with working information and positioning symbols, and is provided with an identification module and a pen core specific processing method as follows:

the intelligent pen can acquire the positioning symbols on the operation paper during the writing operation and the written handwriting through the recognition module, and can be in communication connection with the server through the pen box; the intelligent pen transmits the acquired data to the pen box, and the pen box uploads the data to the server;

the intelligent pen is characterized in that the intelligent pen is further provided with a trigger mechanism, when the trigger mechanism is triggered, the intelligent pen can enter an erasing mode, and when the intelligent pen is in the erasing mode, the intelligent pen can synchronously modify the handwriting on the operation paper and the handwriting data in the server.

2. Handwriting processing method according to claim 1, characterized in that: the trigger mechanism is formed by combining a touch key, a gyroscope and a motion sensor, when the intelligent pen is taken up and is held at a specified inclined angle, the touch key is pressed down, and the identification module identifies the operation paper, the intelligent pen can be immediately triggered to enter an erasing mode.

3. A method of handwriting processing according to claim 2, characterized by: if the holding state does not accord with the preset value, prompting, and failing to enter an erasing mode or delaying to enter the erasing mode; if the change amplitude of the inclination angle exceeds a threshold value in the erasing action process, judging the abnormality, and prompting to quit the erasing mode after the abnormality is detected; if the operation paper is not identified, prompting, and failing to enter an erasing mode or delaying to enter the erasing mode; if the motion sensor detects that it is not being held, but is in a pocket or backpack, the erase mode cannot be entered.

4. A method of handwriting processing according to claim 2, characterized by: the pen core is filled with thermosensitive ink, the intelligent pen is also provided with a heating head, and the heating head can heat the temperature to be more than 45 ℃ and less than 70 ℃;

after entering the erasing mode, the heating head is electrified and heated to raise the temperature, the identification module obtains the region of the handwriting written before the heating head passes through the operation paper and the positioning symbol on the operation paper, and then the data of the content is erased, and the intelligent pen uploads the data to the server through the pen box.

5. Handwriting processing method according to claim 4, characterized in that: stopping heating when the stay time of the heating head at a certain position of the operation paper exceeds a set value;

when the time of the handwriting area passed by the heating head is too short and the handwriting is not erased, sending a prompt;

after the heating head finishes erasing the handwriting in a certain area, the erasing mode is automatically exited by loosening the trigger mechanism;

after the trigger mechanism is released, the heating head on the intelligent pen is still moved, and then the recording is continued through the identification module, and the data of the erased content is compared.

6. Handwriting processing method according to claim 4, characterized in that: when the identification module identifies that the contact area is not the operation paper, a prompt is sent out, and the heating head delays to be electrified for heating;

if the user confirms that heating is still needed, the trigger mechanism is double-clicked again, the heating head is electrified and heated at the moment, the recognition module recognizes the handwriting erasing condition of the contact area, and if no handwriting is erased, the reminding module sends out the reminding again and stops supplying power to the heating head.

7. A method of handwriting processing according to claim 2, characterized by: the intelligent pen is characterized in that the intelligent pen is further provided with a scanning key, when the scanning key is triggered, a scanning mode is entered, at least one beam of guiding light is generated in the scanning mode, the recognition module can automatically scan and recognize handwriting of the guiding light passing through an area, and the width of the guiding light is smaller than or equal to the scanning range of the recognition module;

if the area is made of ordinary paper, after the scanning is finished, reminding a user to mark, or name, or match, or store, or inquire or translate the scanned content.

8. Handwriting processing method according to claim 7, characterized in that: when the original positioning symbol on the operation paper is damaged due to contamination or smearing, the recognition module only has the written handwriting and does not have the positioning symbol when acquiring the writing data, and then the area of the operation paper is judged to be positioned and failed;

after writing is finished, reminding a user that the area has positioning content, simultaneously starting a scanning mode, and marking or matching the area after scanning the area and aligning the answer position by the user.

9. The utility model provides an intelligence paper pen system which characterized in that: -using a handwriting processing method according to any of claims 1 to 8.

Background

Traditional test paper, homework or exercise book are not easy to be identified intelligently, although the questions can be identified after being photographed by a mobile phone, and then corresponding answers and analysis are searched; but the identification rate of complex questions is low, the operation efficiency is low, and the process is complicated; the mobile phone has too many other functions and is not beneficial to students to use when the students finish homework inquiry and analysis. Meanwhile, the answering process of the students cannot be timely and effectively collected through the mobile phone, and teachers cannot interact with the students in a high-efficiency classroom and cannot find problems in the answering process.

Therefore, other systems capable of synchronously uploading the operation appear in the market. 1. The high-speed shooting type or projection type teaching aid is high in hardware cost, relatively single in use scene, high in operation difficulty, incapable of being well integrated into a teaching process, and easy to shield by a palm during use. 2. The touch panel type adopts manual touch and a capacitance pen to perform handwriting input on a touch screen, although the actual colors are rich, the touch feeling of writing on the screen is poor, and the eyesight is easily damaged after long-time use. 3. The electromagnetic screen and the ink screen are combined, the ink screen is slow in refreshing speed, generally only can display black and white, and the hardware cost is high; although the effect on the eyesight is small, the touch feeling of the ink-jet screen writing is poor, and the delay is high.

Therefore, the applicant develops a set of intelligent paper pen system, and the intelligent pen can accurately read the handwriting and answering positions of students by adopting the printing paper printed with code points (coordinate marks) or specific symbols and matching with the intelligent pen with the camera, so that the processes and contents of question identification and answering can be identified and recorded, errors can be found by the students conveniently, and the teacher can conveniently and rapidly review the texts comprehensively. The system reserves the traditional writing habit (interference to daily study of students is small), accurately identifies the writing track and synchronizes the system, can perform efficient interaction with teachers and other students, and can effectively protect the eyesight of students. The system can be used for classroom interactive exercise and post-class operation, so that the time for teachers to modify the operation can be greatly saved, and the working efficiency is improved; meanwhile, teachers can also obtain statistical data and analysis results in time, weak points of students can be found more comprehensively, and accordingly education is performed according to the situation.

However, since the paper is different from the display screen, writing on the paper is easy but difficult to smear, and students usually think once and write once in the process of answering questions, and often modify the previous contents after writing. After the handwriting and the code points on the paper are mixed together, the identification difficulty of the coated or modified writing contents is high, and the identification error rate is high. Meanwhile, when the paper pen system is used, the altering machine cannot be used for altering the content, the paper needs to be prevented from being bent excessively, and meanwhile, the paper needs to be prevented from being polluted by oil.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a handwriting processing method for an intelligent paper pen.

In order to realize the technical purpose, the scheme of the invention is as follows: a handwriting processing method is applied to writing by an intelligent pen in cooperation with working paper printed with working information and positioning symbols, wherein the intelligent pen is provided with an identification module and a pen core specific processing method as follows:

the intelligent pen can acquire the positioning symbols on the operation paper during the writing operation and the written handwriting through the recognition module, and can be in communication connection with the server through the pen box; the intelligent pen transmits the acquired data to the pen box, and the pen box uploads the data to the server;

the intelligent pen is characterized in that the intelligent pen is further provided with a trigger mechanism, when the trigger mechanism is triggered, the intelligent pen can enter an erasing mode, and when the intelligent pen is in the erasing mode, the intelligent pen can synchronously modify the handwriting on the operation paper and the handwriting data in the server.

A smart paper pen system adopts a handwriting processing method.

The heating head has the advantages that the trigger mechanism is matched with the heating head, so that the safe erasing mode entering is realized, and the heated heating head is prevented from scalding a user; meanwhile, the heating head is matched with the recognition module and the pen core, so that the consistency of the handwriting in the operation paper and the system can be guaranteed, the problem that the existing content on the operation paper is not easy to erase is solved, and the operation paper is prevented from being damaged in a friction mode; the cooperation guide light, the scanning operation that carries on that identification module can be better avoids some scene operation paper to lose efficacy or write on plain paper because of the locating symbol who stains.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments.

As shown in fig. 1, an embodiment of the invention is a smart pen system, which includes a smart pen and a piece of homework paper, where the homework paper is printed with positioning symbols with light color, and the positioning symbols can be recognized by a camera recognition module on the smart pen and can position the question content and the question answering area. The intelligent pen is internally provided with a refill of thermosensitive ink, and is also provided with a heating head which can be heated to 45-70 ℃. In order to more comprehensively acquire the pen holding posture of a user, a trigger mechanism is further arranged in the intelligent pen, and the trigger mechanism is formed by combining a touch key, a gyroscope and a motion sensor.

The intelligent paper pen system comprises the following use steps:

s1, the recognition module acquires a positioning symbol on the operation paper during writing operation and the written handwriting, the intelligent pen transmits the acquired data to the pen box, and the pen box uploads the data to the server;

s2, judging whether to enter an erasing mode after the trigger mechanism is triggered;

s3, when the intelligent pen is in the erasing mode, the intelligent pen can synchronously modify the handwriting on the operation paper and the handwriting data in the server;

and S4, if the specified time is exceeded, or the change amplitude of the inclination angle exceeds the threshold value, or no job paper is detected, exiting the erasing mode immediately or with a delay.

Example one

The heating head is located the top of intelligence pen, and the refill (wherein interior temperature-sensitive ink) is located the bottom of intelligence pen, and heating head and refill side all are provided with identification module (camera). When the handwriting recognition system is used for writing, the recognition module can recognize the handwriting in the writing process and the positioning symbols on the operation paper, the handwriting is automatically matched with the operation paper, and the system can know the question number and the specific answer position corresponding to the handwriting. During modification, the intelligent pen is rotated firstly, the heating head at the top of the intelligent pen faces downwards, the touch key is pressed in a pen holding posture, the heating head starts to be heated to 60 ℃, handwriting in an area where the heating head passes is smeared, the identification module identifies the passing area and the positioning symbol in the passing area, and the erased content can be automatically locked and modified. Because the handwriting erased by heating can expose the positioning symbol, the identification module can carry out accurate identification, and then the operation data after erasing can be obtained, and the server can accurately know that a certain content in a specific certain area is erased.

If the heating head is identified not to be the homework paper, the heating head is generally not started, the phenomenon that a student mistakenly touches a touch key to scald himself or other people (generally, the scald is caused when the temperature of an adult lasts for 1 minute) is avoided, so that the temperature of the heating head is controlled to be below 70 ℃, the duration is controlled to be below 40s, meanwhile, the pen holding posture and the erasing environment are subjected to double judgment, and the heating head is started when the safe erasing environment is met.

Example two

The heating head can also be located the same side of intelligent pen with the refill, and the heating head is pop-up type structure, and when needs erase the handwriting, the heating head pops out, and the heating head contacts the operation paper more easily than the refill, and the heating head carries out the identification operation with a refill sharing identification module. After the heating head is used, the heating head is manually contracted and folded back to the pen holder of the intelligent pen, and the pen core is exposed to enable normal writing.

EXAMPLE III

If the positioning symbols on the operation paper are not accurately identified by the identification module due to oil stain, folding or smearing (such as transparent adhesive and correction fluid), the answering content cannot be matched with the questions, and the system gives a prompt when writing is stopped. The method automatically enters a scanning mode, firstly scans the written content by matching with the guide light, then scans the title corresponding to the content (for example, the headmost part of each title is provided with a two-dimensional code or a bar code identification area), namely, the written content and the title can be matched, and even the operation paper which is smeared or folded and partially damaged can be normally used. If a question has multiple spaces and answer areas, the specific answer areas of the corresponding question of the content need to be more accurately matched. And the scanning mode can be used for translation or searching.

When a user finds that the operation paper is stained or smeared and damaged, the user can also actively press down a scanning key on the intelligent pen, when the scanning key is triggered, the intelligent pen enters a scanning mode, at least one beam of guide light is generated in the scanning mode, the handwriting of the guide light passing through the area can be automatically scanned and identified by the identification module, and the width of the guide light is smaller than or equal to the scanning range of the identification module (the requirement of handwriting input on the common paper can be met, or the requirement of handwriting input after the operation paper is smeared and modified); if the area is made of ordinary paper, after the scanning is finished, reminding a user to mark, or name, or match, or store, or inquire or translate the scanned content. After writing is finished, reminding a user that the area has positioning content, simultaneously starting a scanning mode, and marking or matching the area after scanning the area and aligning the answer position by the user.

Example four

And (4) judging a scene of an erasing mode, when the gyroscope and the motion sensor detect that the pen holding state of a user is not correct but the touch key is triggered, carrying out voice prompt, delaying to enter the erasing mode, and if the correct pen holding posture range is not adjusted in the specified time, not entering the erasing mode, so that the method is applicable to scenes such as when a student lifts up the intelligent pen to wave. If the change range of the inclination angle exceeds the threshold value in the erasing action process, the erasing mode is automatically exited after the specified time is exceeded through voice prompt, and the application scene such as pen falling or touch key pressing is adopted to alarm other students. If the operation paper is not recognized, voice prompt is carried out, the erasing mode cannot be entered unless the operation paper is confirmed again, and the erasing function is used if necessary in applicable scenes such as note taking on common paper. If the motion sensor detects that it is not being held, but is in a pocket or backpack, the erase mode cannot be entered.

EXAMPLE five

The erasing content is synchronous, when the erased handwriting enters an erasing mode, in order to guarantee safety, the heating head is electrified and heated to reach the specified temperature, then the power is automatically controlled, the recognition module records the handwriting of the heating head passing through the area and checks the positioning symbol of the area, further erased content data with positioning information is obtained, and after algorithm matching is carried out, the server records that the original content of the area is erased. However, the situation that the retention time is too short or the temperature is insufficient may exist in the erasing action process, the handwriting may be only partially erased or still have light handwriting, and the system needs to judge the follow-up action of the student for reminding; if the student continues erasing once again, the student does not remind, if the student continues doing questions, the student actively recognizes new handwriting, and if interference exists, the student is reminded to remedy through the scanning mode. After the heating head finishes erasing the handwriting in a certain area, the erasing mode is automatically exited by loosening the trigger mechanism; after the trigger mechanism is released, the heating head on the intelligent pen is still moved, and then the recording is continued through the identification module, and the data of the erased content is compared. When the identification module identifies that the contact area is not the operation paper, a prompt is sent out, and the heating head delays to be electrified for heating; if the user confirms that heating is still needed, the trigger mechanism is double-clicked again, the heating head is electrified and heated at the moment, the recognition module recognizes the handwriting erasing condition of the contact area, and if no handwriting is erased, the reminding module sends out the reminding again and stops supplying power to the heating head.

The trigger mechanism is matched with the heating head, so that the heating head can safely enter an erasing mode, and a user can not be scalded by the heated heating head; meanwhile, the heating head is matched with the recognition module and the pen core, so that the consistency of the handwriting in the operation paper and the system can be guaranteed, the problem that the existing content on the operation paper is not easy to erase is solved, and the operation paper is prevented from being damaged in a friction mode; the cooperation guide light, the scanning operation that carries on that identification module can be better avoids some scene operation paper to lose efficacy or write on plain paper because of the locating symbol who stains.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.