CN103903491A - Method and device for achieving writing inspection - Google Patents
Method and device for achieving writing inspection Download PDFInfo
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- CN103903491A CN103903491A CN201410052033.0A CN201410052033A CN103903491A CN 103903491 A CN103903491 A CN 103903491A CN 201410052033 A CN201410052033 A CN 201410052033A CN 103903491 A CN103903491 A CN 103903491A
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Abstract
The invention discloses a method and device for achieving writing inspection. The method comprises the steps that an ultrasonic receiving device receives ultrasonic waves transmitted by a writing pen, the positions of the writing pen are determined according to the ultrasonic waves, the position of the ultrasonic receiving device is fixed, the positions are compared to obtain a movement locus of the writing pen, the writing contents of a user are recognized according to the movement locus, whether the writing contents are written correctly or not is judged, and if the writing contents are not written correctly, corresponding correct information is output. Through the technical scheme, the writing errors of the user can be detected, the writing errors of the user can be prompted timely, output correct information can give certain assistance for the user, and error writing is prevented from forming memories in the brain.
Description
Technical field
The present invention relates to teach auxiliary apparatus field, relate in particular to a kind of method and device of writing inspection realized.
Background technology
In daily life, user copies or when the writing task such as dictation completing, cannot find in time the problems such as Chinese-character stroke mistake, letter spelling composition error, order of writing strokes mistake or the format write mistake of oneself writing, and wrong writing more early found, more easily correct, prevent in brain mistake to write formation deep impression.In addition, user, carrying out in mathematical problem training process, often can occur the low staging errors such as clerical mistake because of carelessness, but user cannot discover one's mistakes in time conventionally, is unfavorable for that user sums up lesson, eliminating error in time.
In actual life, such as student, carrying out training book etc. while writing operation, oneself cannot determine correcting errors of writing, and conventionally will arrive the head of a family and check and could find.And after the head of a family moils go home every day, also need to teach child to write operation, increase the weight of the head of a family's burden.
Summary of the invention
The object of the invention is to propose a kind of method and device of writing inspection realized, can self-verifying go out user's clerical error, and export correct written information user is taught.
For reaching this object, the present invention by the following technical solutions:
Realize a method of writing inspection, comprising:
Ultrasonic probe, ultrasonic receiver receives the ultrasound wave of lettering pen transmitting, determines the position of lettering pen according to this ultrasound wave; The position of described ultrasonic probe, ultrasonic receiver is fixed;
Contrast the movement locus that described position draws lettering pen, according to described movement locus identification user's written contents;
Judge that whether written contents is write correctly, if not, exports corresponding correct information.
Wherein, described according to described movement locus identification user's written contents, comprising:
Obtain the unique point of writing according to described movement locus, identify written contents according to the unique point of writing; Described unique point of writing comprises: the structure of font composition, and initial end points, the presentation direction of stroke and write turning point;
Describedly judge that whether written contents is write correctly, comprising:
Determine that present mode is the instant detecting pattern of presetting, it is complete whether the current written contents of detection user has been write, and if so, judges whether written contents is write correctly;
Determine that present mode is default test pattern, in the time receiving the user instruction that starts check and correction, judge whether written contents is write correctly.
Wherein, described according to described movement locus identification user's written contents, comprising:
Identify font, the order of strokes observed in calligraphy and the format write specification of writing according to described movement locus, described font comprises the result of Chinese character, letter spelling combination or mathematical operation;
Describedly judge whether written contents is write correctly and be specially:
Whether font, the order of strokes observed in calligraphy and the format write specification that judgement is write mates with standard content corresponding in preset database;
Described preset database comprises pre-stored local data base, or the network data base connecting by wireless network; Standard content in described database comprises font, the order of strokes observed in calligraphy and format write specification, and described format write specification comprises: letter, the occupy-place of letter spelling on the four line three lattice pages, and the capital and small letter specification of letter.
Wherein, describedly judge whether written contents is write correctly, if not, exports corresponding correct information, comprising:
Whether the result of character script, letter spelling combination or mathematical operation that judgement is write mates with standard content corresponding in preset database, or whether the format write of the word order of strokes observed in calligraphy, letter spelling that judgement is write mates with standard content corresponding in preset database, if do not mate, export corresponding correct information.
Wherein, it is complete whether the current written contents of described detection user has been write, and if so, judges that whether written contents is write correctly, comprising:
Use camera to gather user's the picture of writing according to predeterminated frequency;
Whether leave current region of writing according to writing the nib of lettering pen described in image detect, if so, current written contents has been write completely, judges whether written contents is write correctly.
Wherein, the correct information that described output is corresponding, comprising:
Export corresponding correct written image by display screen, export corresponding explanation by sound-producing device.
Wherein, after correct information corresponding to described output, also comprise:
If receive the new ultrasound wave of lettering pen transmitting, determine that user starts to write new content, control display screen and sound-producing device and stop current output.
Wherein, described according to after described movement locus identification user's written contents, also comprise:
Detect user whether correct to the amendment of written contents, if so, by the correct information of display screen output modifications; If not, export corresponding correct written image by display screen, export default voice message signal by sound-producing device.
Realize a device of writing inspection, comprising:
Ultrasound wave receiver module, for receiving the ultrasound wave of lettering pen transmitting;
Data processing module, for determining the position of lettering pen, contrast described position the movement locus that draws lettering pen according to this ultrasound wave;
Identification module, for identifying user's written contents according to the movement locus of lettering pen;
Output control module, for judging that whether written contents is write correctly, if not, exports corresponding correct information.
Wherein, the described identification of the movement locus according to lettering pen user's written contents, comprising:
Obtain the unique point of writing according to the movement locus of lettering pen, identify written contents according to the unique point of writing; Described unique point of writing comprises: the structure of font composition, and initial end points, the presentation direction of stroke and write turning point;
Describedly judge that whether written contents is write correctly, comprising:
Determine that present mode is the instant detecting pattern of presetting, it is complete whether the current written contents of detection user has been write, and if so, judges whether written contents is write correctly;
Determine that present mode is default test pattern, in the time receiving the user instruction that starts check and correction, judge whether written contents is write correctly.
Wherein, described identification module, specifically for identify font, the order of strokes observed in calligraphy and the format write specification of writing according to the movement locus of lettering pen, described font comprises the result of Chinese character, letter spelling combination or mathematical operation;
Describedly judge whether written contents is write correctly and be specially:
Whether font, the order of strokes observed in calligraphy and the format write specification that judgement is write mates with standard content corresponding in preset database;
Described preset database comprises pre-stored local data base, or the network data base connecting by wireless network; Standard content in described database comprises font, the order of strokes observed in calligraphy and format write specification, and described format write specification comprises: letter, the occupy-place of letter spelling on the four line three lattice pages, and the capital and small letter specification of letter.
Wherein, described output control module, whether the result of character script, letter spelling combination or the mathematical operation of writing specifically for judgement mates with standard content corresponding in preset database, or whether the format write of the word order of strokes observed in calligraphy, letter spelling that judgement is write mates with standard content corresponding in preset database, if do not mate, export corresponding correct information.
Wherein, it is complete whether the current written contents of described detection user has been write, and if so, judges that whether written contents is write correctly, comprising:
Use camera to gather user's the picture of writing according to predeterminated frequency;
Whether leave current region of writing according to writing the nib of lettering pen described in image detect, if so, judge whether written contents is write correctly.
Wherein, the correct information that described output is corresponding, comprising:
Export corresponding correct written image by display screen, export corresponding explanation by sound-producing device;
Described output control module, if also receive the new ultrasound wave of lettering pen transmitting for described ultrasound wave receiver module, determines that user starts to write new content, controls display screen and sound-producing device and stops current output;
Described output control module, also whether correct to the amendment of written contents for detection of user, if so, by the correct information of display screen output modifications; If not, export corresponding correct written image by display screen, export default voice message signal by sound-producing device.
Implement the embodiment of the present invention, there is following beneficial effect:
The embodiment of the present invention by hyperacoustic transmit and receive to analyze draw the writing position that user is current, contrast not writing position in the same time draws handwriting trace, and then user's written contents is identified immediately, user's written contents and the recognition accuracy of process are higher; Write when incorrect when detecting written contents, export corresponding correct information, the clerical error of reminding user in time, and relevant information by output is to the certain guidance of user, avoids in brain, mistake being write and being formed memory.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing described below is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of schematic flow sheet of realizing the method for writing inspection of first embodiment of the invention.
Fig. 2 is the schematic diagram of letter, the occupy-place specification of letter spelling on the four line three lattice pages in first embodiment of the invention.
Whether be that judging of first embodiment of the invention is current write complete schematic diagram to Fig. 3.
Fig. 4 is a kind of schematic flow sheet of realizing the method for writing inspection of second embodiment of the invention.
Fig. 5 is a kind of structural representation of realizing the device of writing inspection of third embodiment of the invention.
Fig. 6 is the schematic diagram of user writing mathematical problem mistake.
Fig. 7 is the schematic diagram of the error correction projection of the wrong mathematical problem of the present invention to Fig. 6.
Embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
In conjunction with Fig. 1, the first embodiment of the present invention is described.
Fig. 1 is a kind of method flow diagram of writing inspection of realizing of first embodiment of the invention, and details are as follows:
In the first embodiment, as shown in Figure 2, described lettering pen comprises pen core, trigger switch and ultrasound wave transmitter module, trigger switch and ultrasound wave transmitter module control linkage, in described lettering pen, also can establish a spring, make at idle state lower spring in the raw, the top of pen core does not contact with trigger switch; In the time that user uses this lettering pen to write, pen core pressurized and then Compress Spring move upward, and can prop up trigger switch to the top of pen core, control acoustic emission module transmitting ultrasound wave.
The position of ultrasonic probe, ultrasonic receiver is fixed, therefore can be according to the ultrasound wave receiving, and unique position of determining lettering pen place, the similar sonar technology of this principle, is not described further at this.
In the first embodiment, because the position of ultrasonic probe, ultrasonic receiver is fixed, therefore can draw the movement locus of lettering pen at diverse location in the same time not according to lettering pen, the movement locus of lettering pen is user's handwriting trace, by handwriting trace identification user's written contents.
This step specific implementation can be, obtains the unique point of writing according to the movement locus of lettering pen, then identifies written contents according to the unique point of writing.In the present embodiment according to the movement locus of lettering pen specifically can obtain font structure composition, stroke initial end points, presentation direction and write the unique point that turning point etc. is write.
In the present embodiment, can further identify font, the order of strokes observed in calligraphy and the format write specification of user writing according to the above-mentioned unique point of writing.Wherein, font comprises the result of Chinese character, letter spelling combination or mathematical operation, the order of strokes observed in calligraphy comprises the sequencing (writing again ' Pie ' as first write '-') of writing font, and format write specification is included in occupy-place (as shown in Figure 2) and the capital and small letter specification of letter etc. on the four line three lattice pages.
In the present embodiment, the execution of step 102 can complete in this locality, and also server completes beyond the clouds, then execution result is turned back to this locality, can also first carry out in this locality, if local execution result be discrimination lower than default threshold value, then carried out by cloud server.Embodiment is as follows:
Mode one, draw the movement locus of lettering pen in the position of this locality contrast lettering pen, and then according to described movement locus identification user's written contents.
Mode two, the position of described lettering pen is sent to cloud server, server draws the movement locus of lettering pen according to the position of lettering pen beyond the clouds, and according to described movement locus identification user's written contents, then the written contents identifying is returned to this locality.
Mode three, the first position at this locality contrast lettering pen draw the movement locus of lettering pen, and then according to described movement locus identification user's written contents, if local discrimination is lower than default threshold value, the position of lettering pen is sent to cloud server, server draws the movement locus of lettering pen according to the position of lettering pen beyond the clouds, and according to described movement locus identification user's written contents, last recognition result returns to this locality.
Wherein, mode two need to be connected cloud server by mode wireless networks such as 3G/wifi with mode three.
In the first embodiment, the specific implementation process of step 103 comprises: whether if determine, present mode is the instant detecting pattern of presetting, detect the current written contents of user and write completely, if so, judges whether written contents is write correctly; If determine, present mode is default test pattern, waits for user's operational order; In the time receiving the user instruction that starts check and correction, start to judge whether written contents is write correctly.Can use camera according to predeterminated frequency collection user's the picture of writing, whether leave current region of writing according to the nib of writing image detect lettering pen collecting, if so, show that current written contents write completely, judge whether written contents is write correctly.Because conventionally user completes writing of a word or completes a phonetic or when the writing of numeral, there is an action of removing nib and leave current written contents, therefore the present embodiment this action based on user can judge that written contents write complete.As shown in Figure 3, in the time detecting the nib of lettering pen and leave dotted line frame region, be defined as written contents " in " write completely, start to judge whether written contents is write correctly.
Therefore while specifically enforcement, need first determine current write mode, in the present embodiment, preset two kinds of patterns: instant detecting pattern and test pattern.Two kinds of patterns are defined as follows:
Under instant detecting pattern, relate to read states and the error correction state write.Wherein write read states and be mainly the content that identification is write, i.e. the pronunciation while writing, exports corresponding voice messaging according to the content of user writing, to deepen user's memory by vision, sense of hearing dual impression.Error correction state is mainly used in error-detecting, for example:
1) while writing Chinese language class word: can detect the order of strokes observed in calligraphy mistake (as many pictures or a few picture etc.) of writing, the semantic error (as " sorrow " mistake is written as to " sorrow ") of writing;
2) while writing letter spelling class content (as English): the various mistake of occupy-place or the sentence that can detect misspelling, four line three lattice start alphabetical capital and small letter mistake etc.
Write correctly if detected, do not point out; If the clerical error of detecting, will be the display module that sends to of correct written contents and explanation.
Under test pattern, being different from the judgement while writing of instant detecting pattern, is after user completes exercise question, to do error-detecting again.Be that user completes after exercise, can pass through screen operator (for example clicking " check and correction " button), in the time receiving this operational order, finish the identification to written contents, whole written contents of not check and correction are detected, write if detect correctly, can on screen, show correct information.If the clerical error of detecting, will send to display module correct written contents and show, can also send corresponding explanation and play to sound-producing device simultaneously.
As a preferred implementation of the present embodiment, can determine current pattern according to the picture of writing of camera collection.For example according to the image detect of writing gathering, to go out the current carrier of writing be homework book, is defined as instant alerts pattern, if to go out the current carrier of writing be paper according to the image detect of writing gathering, is defined as test pattern.
As a preferred implementation of the present embodiment, in step 103, judge whether written contents is write correct concrete mode and be can be: the current font of writing, the order of strokes observed in calligraphy and format write specification are compared with standard content corresponding in preset database, to judge whether the current font of writing, the order of strokes observed in calligraphy and format write specification write correctly.Specifically comprise and judge that whether the result of the current Chinese character of writing, letter spelling combination or mathematical operation is correct, corresponding, preset database comprises: word standard, letter spelling standard and mathematical operation standard.Whether the format write that also can judge the order of writing strokes of the current Chinese character of writing or letter, letter spelling is write correctly, also comprises the order of writing strokes standard of word and the format write standard of letter spelling in described preset database.According to user's actual need, also can be built-in more for judging current other standards content of writing in preset database, for example, built-in common semantic criteria etc.
It should be noted that, the preset database of the present embodiment can, for to be stored in local database (this locality is used separately), can be both also by the network data base of the mode wireless connections such as 3G/wifi.Standard content in described database comprises font, the order of strokes observed in calligraphy and format write specification.
By comparison, the result of character script, letter spelling combination or the mathematical operation of writing if find is not mated with standard content corresponding in preset database, or the word order of strokes observed in calligraphy of writing, the format write of letter spelling are not mated with standard content corresponding in preset database, export corresponding correct information, for example export corresponding correct written image by display screen, and export corresponding explanation by sound-producing device, be convenient to user and recognize in time clerical error, and provide user and separate concretely guidance.
In the first embodiment, write when incorrect when judging written contents, can from local data base, obtain pre-stored explanation data, also can search for cloud server by mixed-media network modules mixed-media and obtain other more detailed explanation data, for user provides better guidance.
By above-mentioned the first embodiment of the present invention, draw according to the ultrasonic analysis of the lettering pen transmitting receiving the writing position that user is current, contrast not writing position in the same time draws handwriting trace, and then user's written contents is identified immediately; Write incorrectly if judge written contents, export corresponding correct information.Make user can immediately find clerical error, and the relevant information of passing through output is to the certain guidance of user, avoids in brain, mistake being write and being formed memory.Further, transmit and receive written contents and the process that can more accurately identify user by ultrasound wave, camera only need to second rank speed take user write picture, alleviated the requirement to processor calculating processing power.And if merely go to identify user's written contents and process by camera, camera need to be taken with the speed of Millisecond the dynamic picture of user writing, this to calculation process ability require high.
In conjunction with Fig. 4, the second embodiment of the present invention is described, the method for teaching mainly for the operation of instant alerts pattern in a second embodiment, and increased user and revise the situation explanation of written contents.
In a second embodiment, realize and write the method flow of inspection details are as follows:
Step 201, ultrasonic probe, ultrasonic receiver receives the ultrasound wave of lettering pen transmitting, determines the position of lettering pen according to this ultrasound wave; The position of described ultrasonic probe, ultrasonic receiver is fixed.
In a second embodiment, the lettering pen that user uses comprises pen core, trigger switch and ultrasound wave transmitter module, trigger switch and ultrasound wave transmitter module control linkage, and under idle state, the top of pen core does not contact with trigger switch; In the time that user uses this lettering pen to write, the top that pen core pressurized moves up to pen core can prop up trigger switch, controls acoustic emission module transmitting ultrasound wave.Ultrasonic probe, ultrasonic receiver is according to the ultrasound wave receiving, unique position of determining lettering pen place.
Step 202, contrasts described position and draws the movement locus of lettering pen, according to described movement locus identification user's written contents.
In the second embodiment, can draw the movement locus of lettering pen at diverse location in the same time not according to lettering pen, the movement locus of lettering pen is user's handwriting trace, can identify user's written contents according to handwriting trace.
Step 203, is used camera to gather user's the picture of writing according to predeterminated frequency.
In a second embodiment, homework book or exercise paper are placed in the scope that camera can take when user writing.In user writing process, use camera to gather user's the picture of writing according to predeterminated frequency.
Step 204, is it complete that whether has current written contents write? if so, carry out next step, otherwise, return to execution step 202 and continue identification user's written contents.
In a second embodiment, whether leave current region of writing according to writing the nib of lettering pen described in image detect, if so, determine current written contents and write completely, carry out next step, otherwise, identification user's written contents continued.Because conventionally user completes writing of a word or completes a phonetic or when the writing of numeral, there is an action of removing nib and leave current written contents, therefore the present embodiment this action based on user can judge that written contents write complete.As shown in Figure 3, in the time detecting the nib of lettering pen and leave dotted line frame region, be defined as written contents " in " write complete.
In the second embodiment, the execution of step 201-202, step 203-204 is not free successively to be limited.Be that lettering pen is launched ultrasound wave while writing, camera is to write picture according to the frequency collection of setting, and belongs to two processes of carrying out side by side.
Does step 205, judge that whether written contents correct? if so, do not react, otherwise, next step carried out.
In a second embodiment, this step is specially the described current font of writing, the order of strokes observed in calligraphy and format write specification is compared with standard content corresponding in preset database; Further comprise the result of the combination of the current character script of writing, letter spelling or mathematical operation is compared with standard content corresponding in preset database, and the format write of the order of writing strokes of the current Chinese character of writing or letter spelling is compared with standard content corresponding in preset database.
It should be noted that, the preset database of the present embodiment can, for to be stored in local database (this locality is used separately), can be both also by the network data base of the mode wireless connections such as 3G/wifi.Standard content in described database comprises font, the order of strokes observed in calligraphy and format write specification.According to user's actual need, also can be built-in more for judging current other standards content of writing in preset database, for example, built-in common semantic criteria etc.
Step 206 is exported corresponding correct written image by display screen, and exports corresponding explanation by sound-producing device.
For example, if user's order of writing strokes mistake is inputted the image of correct order of writing strokes by display screen, export the suitable explanation of correct writing pen by sound-producing device simultaneously.For another example, when writing mathematics and being entitled as shown in Fig. 6, will on display screen, export correct images as shown in Figure 7, meanwhile, export the explanation of computation process by sound-producing device.
Step 207, does user restart to write? if so, carry out next step, continue current output.
In the present embodiment, whether receive the new ultrasound wave of lettering pen transmitting, if so, surperficial user restarts to write.
Step 208, gets started the identification of next word.If now displaying contents is play and do not finished, stop playing.
In the process of correct information corresponding to output, if receive the new ultrasound wave of lettering pen transmitting, determine that user starts to write new content, control display screen and sound-producing device and stop current output, get started the current written contents of user is identified.
In the second embodiment, if user revises written contents, judge whether amendment is correct, if so, by the correct information of display screen output modifications; If not, again exporting corresponding correct written image by display screen, export default voice message signal by sound-producing device, for example, can be slight " d " sound of output.
By above-mentioned the second embodiment, draw according to the ultrasonic analysis of the lettering pen transmitting receiving the writing position that user is current, contrast not writing position in the same time draws handwriting trace, and then user's written contents is identified immediately; Write incorrectly if judge written contents, export corresponding correct information.Make user can immediately find clerical error, and the relevant information of passing through output is to the certain guidance of user, avoids in brain, mistake being write and being formed memory.Further, transmit and receive written contents and the process that can more accurately identify user by ultrasound wave, camera only need to second rank speed take user write picture, alleviated the requirement to processor calculating processing power.And if merely go to identify user's written contents and process by camera, camera need to be taken with the speed of Millisecond the dynamic picture of user writing, this to calculation process ability require high.
A kind of embodiment that realizes the device of writing inspection providing for the embodiment of the present invention below.The embodiment of described device and above-mentioned embodiment of the method belong to same design, and the detail content of detailed description not in the embodiment of device, can be with reference to said method embodiment.
Fig. 5 shows a kind of structural representation of realizing the device of writing inspection of third embodiment of the invention, is elaborated below.
The device of writing inspection in the 3rd embodiment realization comprises: ultrasound wave receiver module 501, data processing module 502, identification module 503, output control module 504.
In the 3rd embodiment, position for lettering pen, ultrasound wave receiver module 501 positions is fixed, for receiving the ultrasound wave of lettering pen transmitting.Lettering pen in the present embodiment comprises pen core, trigger switch and ultrasound wave transmitter module, trigger switch and ultrasound wave transmitter module control linkage, and described lettering pen is under idle state, and the top of pen core does not contact with trigger switch; In the time that user uses this lettering pen to write, pen core pressurized and then the top that moves up to pen core can prop up trigger switch, control acoustic emission module transmitting ultrasound wave.After the ultrasound wave that ultrasound wave receiver module 501 receives, send to data processing module 502.
In the 3rd embodiment, data processing module 502 is determined the relative position of lettering pen with respect to ultrasound wave receiver module 501 according to this ultrasound wave, can draw the movement locus of lettering pen by the comparison of successive relative positions.The movement locus of lettering pen that is to say user's handwriting trace.
As a preferred implementation of the 3rd embodiment, identification module 503 obtains the unique point of writing according to the movement locus of lettering pen, identify written contents according to the unique point of writing.The unique point of writing in the present embodiment comprises the structure composition of font, and initial end points, the presentation direction of stroke and write turning point, and identification module 503 can be identified font, the order of strokes observed in calligraphy and the format write specification of user writing according to writing feature point.Wherein, font comprises the result of Chinese character, letter spelling combination or mathematical operation; The order of strokes observed in calligraphy comprises the sequencing (writing again ' Pie ' as first write '-') of writing font; Format write specification is included in occupy-place (as shown in Figure 2) and the capital and small letter specification of letter etc. on the four line three lattice pages.
As a preferred implementation of the present embodiment, describedly judge whether written contents is write correct concrete mode and be can be: the current font of writing, the order of strokes observed in calligraphy and format write specification are compared with standard content corresponding in preset database, to judge whether the current font of writing, the order of strokes observed in calligraphy and format write specification write correctly.Comprise and judge that whether the result of the current Chinese character of writing, letter spelling combination or mathematical operation is correct, and whether the format write that judges the order of writing strokes of the current Chinese character of writing or letter, letter spelling is write correctly, described preset database comprises: word standard, letter spelling standard and mathematical operation standard, also comprise the order of writing strokes standard of word and the format write standard of letter spelling.According to user's actual need, also can be built-in more for judging current other standards content of writing in preset database, for example, built-in common semantic criteria etc.It should be noted that, above-mentioned preset database can, for to be stored in local database (this locality is used separately), can be both also by the network data base of the mode wireless connections such as 3G/wifi.
By comparison, the result of character script, letter spelling combination or the mathematical operation of writing if find is not mated with standard content corresponding in preset database, or the word order of strokes observed in calligraphy of writing, the format write of letter spelling are not mated with standard content corresponding in preset database, export corresponding correct information, for example export corresponding correct written image by display screen, export corresponding explanation by sound-producing device simultaneously.
In the present embodiment, write when incorrect when written contents, output control module 504 is exported corresponding correct written image by display screen, exports corresponding explanation by sound-producing device.Can from local data base, obtain pre-stored explanation data, also can search for cloud server by mixed-media network modules mixed-media and obtain other more detailed explanation data, for user provides better guidance.
Further, in the present embodiment, if output control module 504 also receives the new ultrasound wave of lettering pen transmitting for described ultrasound wave receiver module 501, determine that user starts to write new content, control display screen and sound-producing device and stop current output.
Further, in the present embodiment, in the time detecting that user modifies to written contents, whether output control module 504 is also correct for detection of user's amendment, if so, by the correct information of display screen output modifications; If not, export corresponding correct written image by display screen, export default voice message signal by sound-producing device.
Preferably, in the 3rd embodiment, realize the device of writing guidance and also comprise mode decision module 505, for determining the current write mode of user, be the instant detecting pattern of presetting if determine write mode, whether detect the current written contents of user has write complete, if so, to output control module 504 instruction that initiates a message; Be default test pattern if determine present mode, wait for user's operational order; In the time receiving the user instruction that starts check and correction, to output control module 504 instruction that initiates a message.
As a preferred implementation of the present embodiment, can gather according to predeterminated frequency user's the picture of writing, determine current pattern according to the picture of writing of camera collection.For example according to the image detect of writing gathering, to go out the current carrier of writing be homework book, is defined as instant alerts pattern, if to go out the current carrier of writing be paper according to the image detect of writing gathering, is defined as test pattern.
As a preferred implementation of the present embodiment, judge whether written contents has been write complete process and can be: use camera to gather user's the picture of writing according to predeterminated frequency, whether leave current region of writing according to the nib of writing image detect lettering pen collecting, if so, show that current written contents write complete.Because conventionally user completes writing of a word or completes a phonetic or when the writing of numeral, there is an action of removing nib and leave current written contents, therefore the present embodiment this action based on user can judge that written contents write complete.As shown in Figure 3, in the time detecting the nib of lettering pen and leave dotted line frame region, be defined as written contents " in " write complete.
Instant detecting pattern and test pattern in the present embodiment, are preset.Be defined as follows:
Under instant detecting pattern, relate to read states and the error correction state write.Wherein write read states and be mainly the content that identification is write, i.e. the pronunciation while writing, exports corresponding voice messaging according to the content of user writing, to deepen user's memory by vision, sense of hearing dual impression.Error correction state is mainly used in error-detecting, for example:
1) while writing Chinese language class word: can detect the order of strokes observed in calligraphy mistake (as many pictures or a few picture etc.) of writing, the semantic error (as " sorrow " mistake is written as to " sorrow ") of writing;
2) while writing letter spelling class content (as English): the various mistake of occupy-place or the sentence that can detect misspelling, four line three lattice start alphabetical capital and small letter mistake etc.
Write correctly if detected, do not point out; If the clerical error of detecting, will be the display module that sends to of correct written contents and explanation.
Under test pattern, being different from the judgement while writing of instant detecting pattern, is after user completes exercise question, to do error-detecting again.Be that user completes after exercise, can pass through screen operator (for example clicking " check and correction " button), in the time receiving this operational order, finish the identification to written contents, whole written contents of not check and correction are detected, write if detect correctly, can on screen, show correct information.If the clerical error of detecting, will send to display module correct written contents and show, can also send corresponding explanation and play to sound-producing device simultaneously.
Pass through the above embodiment of the present invention, according to hyperacoustic transmit and receive to analyze draw the writing position that user is current, contrast not writing position in the same time draws handwriting trace, and then user's written contents is identified immediately, and user's written contents and the recognition accuracy of process are higher; Write when incorrect when detecting written contents, export corresponding correct information, the clerical error of reminding user in time, and relevant information by output is to the certain guidance of user, avoids in brain, mistake being write and being formed memory.Further, in the solution of the present invention, transmit and receive by ultrasound wave the written contents and the process that identify user, camera only need to second rank speed take user write picture, alleviated the requirement to processor calculating processing power.And if merely go to identify user's written contents and process by camera, camera need to be taken with the speed of Millisecond the dynamic picture of user writing, this to calculation process ability require high.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this claim scope of the present invention, therefore, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., still belong to the scope that the present invention is contained.
Claims (14)
1. a method for inspection is write in realization, it is characterized in that, comprising:
Ultrasonic probe, ultrasonic receiver receives the ultrasound wave of lettering pen transmitting, determines the position of lettering pen according to this ultrasound wave; The position of described ultrasonic probe, ultrasonic receiver is fixed;
Contrast the movement locus that described position draws lettering pen, according to described movement locus identification user's written contents;
Judge that whether written contents is write correctly, if not, exports corresponding correct information.
2. the method for inspection is write in realization according to claim 1, it is characterized in that, described according to described movement locus identification user's written contents, comprising:
Obtain the unique point of writing according to described movement locus, identify written contents according to the unique point of writing; Described unique point of writing comprises: the structure of font composition, and initial end points, the presentation direction of stroke and write turning point;
Describedly judge that whether written contents is write correctly, comprising:
Determine that present mode is the instant detecting pattern of presetting, it is complete whether the current written contents of detection user has been write, and if so, judges whether written contents is write correctly;
Determine that present mode is default test pattern, in the time receiving the user instruction that starts check and correction, judge whether written contents is write correctly.
3. the method for inspection is write in realization according to claim 2, it is characterized in that, described according to described movement locus identification user's written contents, comprising:
Identify font, the order of strokes observed in calligraphy and the format write specification of writing according to described movement locus, described font comprises the result of Chinese character, letter spelling combination or mathematical operation;
Describedly judge whether written contents is write correctly and be specially:
Whether font, the order of strokes observed in calligraphy and the format write specification that judgement is write mates with standard content corresponding in preset database;
Described preset database comprises pre-stored local data base, or the network data base connecting by wireless network; Standard content in described database comprises font, the order of strokes observed in calligraphy and format write specification, and described format write specification comprises: letter, the occupy-place of letter spelling on the four line three lattice pages, and the capital and small letter specification of letter.
4. the method for inspection is write in realization according to claim 3, it is characterized in that, describedly judges whether written contents is write correctly, if not, exports corresponding correct information, comprising:
Whether the result of character script, letter spelling combination or mathematical operation that judgement is write mates with standard content corresponding in preset database, or whether the format write of the word order of strokes observed in calligraphy, letter spelling that judgement is write mates with standard content corresponding in preset database, if do not mate, export corresponding correct information.
5. the method for inspection is write in realization according to claim 3, it is characterized in that, it is complete whether the current written contents of described detection user has been write, and if so, judges that whether written contents is write correctly, comprising:
Use camera to gather user's the picture of writing according to predeterminated frequency;
Whether leave current region of writing according to writing the nib of lettering pen described in image detect, if so, current written contents has been write completely, judges whether written contents is write correctly.
6. the method for inspection is write in realization according to claim 1, it is characterized in that, the correct information that described output is corresponding, comprising:
Export corresponding correct written image by display screen, export corresponding explanation by sound-producing device.
7. the method for inspection is write in realization according to claim 6, it is characterized in that, after correct information corresponding to described output, also comprises:
If receive the new ultrasound wave of lettering pen transmitting, determine that user starts to write new content, control display screen and sound-producing device and stop current output.
8. the method for inspection is write in realization according to claim 1, it is characterized in that, described according to after described movement locus identification user's written contents, also comprises:
Detect user whether correct to the amendment of written contents, if so, by the correct information of display screen output modifications; If not, export corresponding correct written image by display screen, export default voice message signal by sound-producing device.
9. a device for inspection is write in realization, it is characterized in that, comprising:
Ultrasound wave receiver module, for receiving the ultrasound wave of lettering pen transmitting;
Data processing module, for determining the position of lettering pen, contrast described position the movement locus that draws lettering pen according to this ultrasound wave;
Identification module, for identifying user's written contents according to the movement locus of lettering pen;
Output control module, for judging that whether written contents is write correctly, if not, exports corresponding correct information.
10. the device of inspection is write in realization according to claim 9, it is characterized in that, the described identification of the movement locus according to lettering pen user's written contents, comprising:
Obtain the unique point of writing according to the movement locus of lettering pen, identify written contents according to the unique point of writing; Described unique point of writing comprises: the structure of font composition, and initial end points, the presentation direction of stroke and write turning point;
Describedly judge that whether written contents is write correctly, comprising:
Determine that present mode is the instant detecting pattern of presetting, it is complete whether the current written contents of detection user has been write, and if so, judges whether written contents is write correctly;
Determine that present mode is default test pattern, in the time receiving the user instruction that starts check and correction, judge whether written contents is write correctly.
The device of inspection is write in 11. realizations according to claim 10, it is characterized in that, described identification module, specifically for identify font, the order of strokes observed in calligraphy and the format write specification of writing according to the movement locus of lettering pen, described font comprises the result of Chinese character, letter spelling combination or mathematical operation;
Describedly judge whether written contents is write correctly and be specially:
Whether font, the order of strokes observed in calligraphy and the format write specification that judgement is write mates with standard content corresponding in preset database;
Described preset database comprises pre-stored local data base, or the network data base connecting by wireless network; Standard content in described database comprises font, the order of strokes observed in calligraphy and format write specification, and described format write specification comprises: letter, the occupy-place of letter spelling on the four line three lattice pages, and the capital and small letter specification of letter.
The device of inspection is write in 12. realizations according to claim 11, it is characterized in that, described output control module, whether the result of character script, letter spelling combination or the mathematical operation of writing specifically for judgement mates with standard content corresponding in preset database, or whether the format write of the word order of strokes observed in calligraphy, letter spelling that judgement is write mates with standard content corresponding in preset database, if do not mate, export corresponding correct information.
The device of inspection is write in 13. realizations according to claim 11, it is characterized in that, it is complete whether the current written contents of described detection user has been write, and if so, judges that whether written contents is write correctly, comprising:
Use camera to gather user's the picture of writing according to predeterminated frequency;
Whether leave current region of writing according to writing the nib of lettering pen described in image detect, if so, judge whether written contents is write correctly.
The device of inspection is write in 14. realizations according to claim 9, it is characterized in that, the correct information that described output is corresponding, comprising:
Export corresponding correct written image by display screen, export corresponding explanation by sound-producing device;
Described output control module, if also receive the new ultrasound wave of lettering pen transmitting for described ultrasound wave receiver module, determines that user starts to write new content, controls display screen and sound-producing device and stops current output;
Described output control module, also whether correct to the amendment of written contents for detection of user, if so, by the correct information of display screen output modifications; If not, export corresponding correct written image by display screen, export default voice message signal by sound-producing device.
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| CN201410052033.0A CN103903491A (en) | 2014-02-14 | 2014-02-14 | Method and device for achieving writing inspection |
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| CN201410052033.0A CN103903491A (en) | 2014-02-14 | 2014-02-14 | Method and device for achieving writing inspection |
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Application publication date: 20140702 |