CN107643840A - Writing pencil word automatic identifying method and system based on inertia device - Google Patents
Writing pencil word automatic identifying method and system based on inertia device Download PDFInfo
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- CN107643840A CN107643840A CN201710859235.XA CN201710859235A CN107643840A CN 107643840 A CN107643840 A CN 107643840A CN 201710859235 A CN201710859235 A CN 201710859235A CN 107643840 A CN107643840 A CN 107643840A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000010354 integration Effects 0.000 claims description 12
- 238000013507 mapping Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 230000000386 athletic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The present invention relates to a kind of writing pencil word automatic identifying method based on inertia device.Another technical scheme of the present invention there is provided a kind of writing pencil word automatic identifying method based on inertia device, including：Writing pencil, it is characterised in that also include：Chinese character database；Control unit；Inertia sensing device and vibrating sensor on writing pencil.The present invention devises a kind of writing pencil word automatic identifying method and system based on inertial sensor, the present invention can allow user at an arbitrary position without using in the case of handwriting pad in the air, the enterprising style of writing word input of desktop.
Description
Technical field
The present invention relates to the method and system that a kind of word to writing pencil input is identified.
Background technology
Current computer hand-writing pencil uses voltage or condenser type handwriting pad identification writing pencil.Word is inputted using the writing pencil
When, user must be inputted on supporting handwriting pad, could be identified by computer.Such as Publication No. CN206497439U,
The utility model patent that publication date is 20170915 discloses a kind of handwritten Chinese character quickly identification and input instrument, including instrument sheet
Body, multifunction switch, built-in circuit, described device body are provided with touching display screen, instrument body, light sensor, more work(
Can switch, indicator lamp, a groove, buzzer, power hole, writing pencil, fixed column, energization plate, shift knob, the first contact, charging
Connecting line, the second contact, sheet metal, pedestal, spring, power module, the built-in circuit are provided with and automatically power off module, stroke
Rapid input module, word intelligent identification module, voice module, display module, Stroke discrimination module, stroke intelligence recombination module,
Instrument body is reasonable in design, can efficient identification man's stroke, write man is shown rapidly by stroke intelligence recombination module,
And it can also be shown in the case where stroke writing is reverse by stroke intelligence recombination module and write man.
As can be seen here, existing computer hand-writing pencil has the disadvantage that：1st, there must be handwriting pad；2nd, can not be in random position
Put and write；3rd, can not be write in the air.
The content of the invention
The technical problem to be solved in the present invention is：Writing pencil is enabled to input word at an arbitrary position.
In order to solve the above-mentioned technical problem, a technical scheme of the invention there is provided a kind of hand based on inertia device
Write a word automatic identifying method, it is characterised in that comprise the following steps：
Step 1, inertia sensing device and vibrating sensor are installed on writing pencil, wherein, inertia sensing device at least wraps
Include accelerometer, fluxgate and micro mechanical sensor；
Chinese character database is established, nib changes in coordinates when each Chinese character is established in Chinese character database with writing current Chinese character
The mapping relations of data；
Whether step 2, vibrating sensor detection writing pencil have the motion of relative earth surface, are passed if so, then starting inertia
Inductor component, into step 3, if not having, continue waiting for；
Step 3, the skew by the accelerometer averaged acquisition value acquisition relatively heavy line of force of writing pencil, are averaged by fluxgate
Collection value obtains writing pencil relative to magnetic north to skew, by the skew of the relatively heavy line of force of writing pencil and writing pencil with respect to earth magnetism
North orientation is offset, you can obtains handwriting pen shaft to information；
Step 4, according to handwriting pen shaft to information, with reference to the instantaneous collection value of micro mechanical sensor, it is relative to obtain writing pencil
The integration amount of the change angular speed of axial direction, by the integration amount, calculates the relative coordinate of the nib of writing pencil to axial, will
The change for the relative coordinate being calculated is compared with nib changes in coordinates data in Chinese character database, passes through what is pre-established
Mapping relations obtain corresponding Chinese character.
Preferably, in the step 4, the change of relative coordinate is exported to main frame by man-machine interface, looked into by main frame
Database is ask so as to obtain corresponding Chinese character, or by man-machine interface directly by Chinese character output to main frame.
Another technical scheme of the present invention there is provided a kind of writing pencil word automatic identification side based on inertia device
Method, including：
Writing pencil, it is connected for carrying out handwriting input, and by man-machine interface with main frame, it is characterised in that also include：
Chinese character database, nib changes in coordinates data when each Chinese character is established in Chinese character database with writing current Chinese character
Mapping relations；
Control unit；
Inertia sensing device and vibrating sensor on writing pencil, wherein：
Vibrating sensor, control unit detect whether writing pencil has the motion of relative earth surface by vibrating sensor,
If so, inertia sensing device is then activated by control unit；
Inertia sensing device, including：
Accelerometer, control unit obtain the skew of the relatively heavy line of force of writing pencil by accelerometer averaged acquisition value；
Fluxgate, control unit obtain writing pencil relative to magnetic north to skew by fluxgate averaged acquisition value, controlled single
Member obtains handwriting pen shaft to information in conjunction with the skew of the relatively heavy line of force of writing pencil；
Micro mechanical sensor, instantaneous collection value of the control unit according to handwriting pen shaft to information combination micro mechanical sensor,
The integration amount of the change angular speed of writing pencil to axial is obtained, by the integration amount, control unit calculates the pen of writing pencil
The relative coordinate of point to axial.
The present invention devises a kind of writing pencil word automatic identifying method based on inertial sensor and system, the present invention can
With allow user at an arbitrary position without using in the case of handwriting pad in the air, desktop it is enterprising style of writing word input.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
The invention provides a kind of writing pencil word automatic identifying method based on inertia device, comprise the following steps：
Step 1：Inertia sensing device and vibrating sensor are installed on writing pencil.
Step 2：Target start handwritten input information is obtained by vibrating sensor, when vibrating sensor detects writing pencil
When having relative earth surface motion, restart inertial sensor and start to obtain writing pencil attitude information, it is accurate to ensure to obtain
Attitude detection starting point, sensor drift error is avoided to cause detection error.
Step 3：The data of acquisition are carried out with attitude algorithm, in solution process, passes through accelerometer averaged acquisition value and obtains
The skew of the relatively heavy line of force, obtained relative to magnetic north to skew, passed through by fluxgate (non-athletic sensor) averaged acquisition value
The two variables, you can obtain handwriting pen shaft to information.
Step 4：The handwriting pen shaft resolved according to upper step is to information, with reference to the instantaneous collection of micro mechanical sensor (mems)
Value, the integration amount of the change angular speed of writing pencil to axial is obtained, by the integration amount, calculates the phase of nib to axial
To coordinate, by the change of relative coordinate, the database of the changes in coordinates of all Chinese characters prestored is contrasted, obtains the input Chinese
Word information.
The Chinese character information that main frame obtains can be directly output to by man-machine interface, can also will be relative by man-machine interface
The variable quantity of coordinate is exported to main frame, database is inquired about by the variable quantity of relative coordinate by main frame, so as to obtain Chinese character information.
Present invention also offers a kind of system based on the above method, including：
Writing pencil, it is connected for carrying out handwriting input, and by man-machine interface with main frame；
Chinese character database, nib changes in coordinates data when each Chinese character is established in Chinese character database with writing current Chinese character
Mapping relations；
Control unit；
Inertia sensing device and vibrating sensor on writing pencil, wherein：
Vibrating sensor, control unit detect whether writing pencil has the motion of relative earth surface by vibrating sensor,
If so, inertia sensing device is then activated by control unit；
Inertia sensing device, including：
Accelerometer, control unit obtain the skew of the relatively heavy line of force of writing pencil by accelerometer averaged acquisition value；
Fluxgate, control unit obtain writing pencil relative to magnetic north to skew by fluxgate averaged acquisition value, controlled single
Member obtains handwriting pen shaft to information in conjunction with the skew of the relatively heavy line of force of writing pencil；
Micro mechanical sensor, instantaneous collection value of the control unit according to handwriting pen shaft to information combination micro mechanical sensor,
The integration amount of the change angular speed of writing pencil to axial is obtained, by the integration amount, control unit calculates the pen of writing pencil
The relative coordinate of point to axial.
Claims (3)
1. a kind of writing pencil word automatic identifying method based on inertia device, it is characterised in that comprise the following steps：
Step 1, inertia sensing device and vibrating sensor are installed on writing pencil, wherein, inertia sensing device, which comprises at least, to be added
Speedometer, fluxgate and micro mechanical sensor；
Chinese character database is established, nib changes in coordinates data when each Chinese character is established in Chinese character database with writing current Chinese character
Mapping relations；
Whether step 2, vibrating sensor detection writing pencil have the motion of relative earth surface, if so, then starting inertial sensor
Part, into step 3, if not having, continue waiting for；
Step 3, the skew by the accelerometer averaged acquisition value acquisition relatively heavy line of force of writing pencil, pass through fluxgate averaged acquisition
Value obtains writing pencil with respect to magnetic north to skew, by the skew of the relatively heavy line of force of writing pencil and writing pencil magnetic north relatively to
Skew, you can obtain handwriting pen shaft to information；
Step 4, according to handwriting pen shaft to information, with reference to the instantaneous collection value of micro mechanical sensor, obtain writing pencil to axial
Change angular speed integration amount, by the integration amount, calculate the relative coordinate of the nib of writing pencil to axial, will calculate
The change of obtained relative coordinate is compared with nib changes in coordinates data in Chinese character database, passes through the mapping pre-established
Relation obtains corresponding Chinese character.
A kind of 2. writing pencil word automatic identifying method based on inertia device as claimed in claim 1, it is characterised in that
In the step 4, the change of relative coordinate is exported to main frame by man-machine interface, by host query database so as to obtaining phase
Corresponding Chinese character, or by man-machine interface directly by Chinese character output to main frame.
3. a kind of writing pencil word automatic identifying method based on inertia device, including：
Writing pencil, it is connected for carrying out handwriting input, and by man-machine interface with main frame, it is characterised in that also include：
Chinese character database, nib changes in coordinates data reflects when each Chinese character is established in Chinese character database with writing current Chinese character
Penetrate relation；
Control unit；
Inertia sensing device and vibrating sensor on writing pencil, wherein：
Vibrating sensor, control unit detect whether writing pencil has the motion of relative earth surface by vibrating sensor, if so,
Inertia sensing device is then activated by control unit；
Inertia sensing device, including：
Accelerometer, control unit obtain the skew of the relatively heavy line of force of writing pencil by accelerometer averaged acquisition value；
Fluxgate, control unit obtain writing pencil relative to magnetic north to skew by fluxgate averaged acquisition value, and control unit is again
Handwriting pen shaft is obtained to information with reference to the skew of the relatively heavy line of force of writing pencil；
Micro mechanical sensor, instantaneous collection value of the control unit according to handwriting pen shaft to information combination micro mechanical sensor, obtain
The integration amount of the change angular speed of writing pencil to axial, by the integration amount, control unit calculates the nib phase of writing pencil
To the relative coordinate of axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859235.XA CN107643840B (en) | 2017-09-21 | 2017-09-21 | Automatic handwriting pen character recognition method and system based on inertial device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859235.XA CN107643840B (en) | 2017-09-21 | 2017-09-21 | Automatic handwriting pen character recognition method and system based on inertial device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107643840A true CN107643840A (en) | 2018-01-30 |
| CN107643840B CN107643840B (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710859235.XA Expired - Fee Related CN107643840B (en) | 2017-09-21 | 2017-09-21 | Automatic handwriting pen character recognition method and system based on inertial device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112364782A (en) * | 2020-11-13 | 2021-02-12 | 深圳振科智能科技有限公司 | Method, device, equipment and medium for identifying high-altitude writing |
| WO2022099589A1 (en) * | 2020-11-13 | 2022-05-19 | 深圳振科智能科技有限公司 | Air-writing recognition method, apparatus, device, and medium |
| WO2022099588A1 (en) * | 2020-11-13 | 2022-05-19 | 深圳振科智能科技有限公司 | Character input method and apparatus, electronic device, and storage medium |
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| US20120212459A1 (en) * | 2009-10-26 | 2012-08-23 | Softwin S.R.L. | Systems and methods for assessing the authenticity of dynamic handwritten signature |
| CN101872259A (en) * | 2010-06-03 | 2010-10-27 | 中国人民解放军第二炮兵工程学院 | Natural interaction pen capable of automatically inputting written contents and handwriting detection method |
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| WO2022099589A1 (en) * | 2020-11-13 | 2022-05-19 | 深圳振科智能科技有限公司 | Air-writing recognition method, apparatus, device, and medium |
| WO2022099588A1 (en) * | 2020-11-13 | 2022-05-19 | 深圳振科智能科技有限公司 | Character input method and apparatus, electronic device, and storage medium |
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| CN107643840B (en) | 2020-12-04 |
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