CN108733268A - A method of detection writing physical strength - Google Patents
A method of detection writing physical strength Download PDFInfo
- Publication number
- CN108733268A CN108733268A CN201710253072.0A CN201710253072A CN108733268A CN 108733268 A CN108733268 A CN 108733268A CN 201710253072 A CN201710253072 A CN 201710253072A CN 108733268 A CN108733268 A CN 108733268A
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- China
- Prior art keywords
- ultrasonic
- physical strength
- pen
- energy converter
- ultrasonic wave
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
Abstract
The invention discloses a kind of methods of detection writing physical strength, include the following steps：（1）The writing physical strength of ultrasonic pen is set as G, ultrasonic pen and the straightline propagation distance received between energy converter are S, ultrasonic wave envelope range value be V, according to the writing physical strength G of ultrasonic pen, ultrasonic pen and receive energy converter between straightline propagation distance S and ultrasonic wave envelope range value V establish ultrasonic wave envelope attenuation meter；（2）When writing, touch location of the ultrasonic pen on clipboard is calculated by controller, go out ultrasonic pen according to touch location calculation and receives the straightline propagation distance S between energy converter, the ultrasonic wave envelope range value V corresponding to the touch location is acquired simultaneously, then current writing physical strength can be judged by ultrasonic wave envelope attenuation meter.Present invention eliminates resonance circuits and force detecting device, and can achieve the purpose that improve detection accuracy on the basis of reducing the design difficulty and cost of detection writing physical strength.
Description
Technical field
The present invention relates to ultrasonic sensing technical field more particularly to a kind of methods of detection writing physical strength.
Background technology
With the continuous development of existing touching technique, the requirement that people write pen is higher and higher, former person's handwriting drawing boards,
Former handwriting Signature just comes into being.In the prior art, former person's handwriting refers to using the ultrasonic pen for being equipped with ultrasonic transmitter in pen
Touching manipulation, simulation is true hand-written, by the touch operation trace of user, including motion track, strength, angle of inclination
Deng recording and simultaneously marked by colored line, to realize former person's handwriting drawing and signature.
Chinese patent notification number is that the prior art of " CN203982305U " disclosed pen pressure detection on December 3rd, 2014
Module and position indicator, technical solution are before pen pressure detection module is contained in and is applied to pen shape and capable of detecting
In the position indicator of the dynamics of end.Have dynamics sensing equipment, the 1st holder and the 2nd holder.Dynamics sensing equipment according to every
It and is formed by electrostatic capacitance between the 1st electrode and the 2nd electrode of the opposite configuration of scheduled distance and is transmitted to the 1st electrode
The case where dynamics accordingly changes detects writing physical strength.The technology uses the static capacitance value changed between two electrode plates
To detect writing physical strength.
Chinese patent notification number is that the prior art of " CN101900613A " disclosed pressure of electromagnetic board on December 1st, 2010
The measuring device and time writer of sense, technical solution are to contain resonance circuit in time writer, when time writer operates, in the circuit
Inductance value change with dynamics；Measuring circuit, for when time writer does not operate, measuring the first parameter value；It is grasped in time writer
When making, the second parameter value is measured；According to the first parameter value and the second parameter value, pressure sensitivity is calculated；Wherein the second parameter value and
The variation for being different from inductance value of one parameter value is associated.The technology uses in resonance circuit pressure sensitivity value to detect writing power
Degree.
But in actual application, above-mentioned two pieces patented technology is all applied to electromagnetic touch field, and is to utilize pressure
Detection device is felt to detect writing physical strength, not only needs to be collocated with RC RL resonance circuits in detection process, it is also necessary to high
Technique mechanism realizes, haves the shortcomings that pressure sensitivity measures that difficulty is big and cost is very high.
Invention content
It is an object of the invention to overcome the above-mentioned problems in the prior art, a kind of side of detection writing physical strength is provided
Method, present invention eliminates resonance circuits and force detecting device, and can be in the design difficulty and cost for reducing detection writing physical strength
On the basis of, achieve the purpose that improve detection accuracy, and, it is easier to the thin type of felt pen point.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A method of detection writing physical strength, which is characterized in that include the following steps：
（1）The writing physical strength of ultrasonic pen is set as G, ultrasonic pen and the straightline propagation distance received between energy converter are S, are surpassed
Sound wave envelope range value be V, according to the writing physical strength G of ultrasonic pen, ultrasonic pen and receive energy converter between straightline propagation away from
Ultrasonic wave envelope attenuation meter is established from S and ultrasonic wave envelope range value V；
（2）When writing, touch location of the ultrasonic pen on clipboard is calculated by controller, according to touch location calculation excess of export
Straightline propagation distance S between sound wave pen and reception energy converter, while acquiring the ultrasonic wave envelope width corresponding to the touch location
Value V, then current writing physical strength can be judged by ultrasonic wave envelope attenuation meter.
The step（1）In, the writing physical strength G of ultrasonic pen, ultrasonic pen and receive the straightline propagation between energy converter
Relationship between distance S and ultrasonic wave envelope range value V three is：When writing physical strength G is remained unchanged, ultrasonic wave envelope range value V
Decay with the increase of the straightline propagation distance S between ultrasonic pen and reception energy converter；When ultrasonic pen and reception energy converter
Between straightline propagation distance S when remaining unchanged, writing physical strength G increases with the increase of ultrasonic wave envelope range value V.
The quantity at least two for receiving energy converter, the straightline propagation between the ultrasonic pen and reception energy converter
Distance refers on the basis of any one reception energy converter, and ultrasonic wave is received from the pen tip straightline propagation of ultrasonic pen to the benchmark
The distance of energy converter.
Advantage using the present invention is：
One, present invention eliminates resonance circuits and force detecting device, without the individually sensing of detection writing physical strength and detection
Module not only simplifies manufacturing process, reduces the production cost, and also helps simplification and the miniaturization of ultrasonic pen.Together
When, moreover it is possible on the basis of reducing the design difficulty and cost of detection writing physical strength, achieve the purpose that improve detection accuracy.
Two, the present invention calculates writing physical strength by ultrasonic wave envelope range value, and algorithm is simple, easy to implement.
Three, the present invention, also without electromagnetic interference, can further promote writing both without resonance circuit in detection process
The accuracy of dynamics detection.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Fig. 2 is writing physical strength G when remaining unchanged, ultrasonic pen and receive straightline propagation distance S between energy converter with it is super
The relationship change figure of sound wave envelope range value V.
Fig. 3 is ultrasonic pen and receives straightline propagation distance S between energy converter when remaining unchanged, writing physical strength G with it is super
The relationship change figure of sound wave envelope range value V.
Fig. 4 is the schematic diagram of ultrasonic wave envelope attenuation meter.
Fig. 5 is the structural schematic diagram of the present invention.
In figure label for：1, ultrasonic pen, 2, receive energy converter, 3, controller.
Specific implementation mode
A method of detection writing physical strength includes the following steps：
（1）The writing physical strength of ultrasonic pen 1 is set as G, ultrasonic pen 1 and the straightline propagation distance received between energy converter 2 are
S, ultrasonic wave envelope range value are V, by controller 3 according to the writing physical strength G, ultrasonic pen 1 and reception energy converter 2 of ultrasonic pen 1
Between straightline propagation distance S and ultrasonic wave envelope range value V establish ultrasonic wave envelope attenuation meter.
Wherein, the writing physical strength G of ultrasonic pen 1, ultrasonic pen 1 and receive energy converter 2 between straightline propagation distance S and
Relationship between ultrasonic wave envelope range value V three is：
When writing physical strength G is remained unchanged, ultrasonic wave envelope range value V is with ultrasonic pen 1 and receives the straight-line transmitting between energy converter 2
It broadcasts the increase of distance S and decays.Specially：As shown in Fig. 2, when writing physical strength G is remained unchanged, ultrasonic pen 1 is changed with reception
When the distance of energy device 2 is set as increasing from 35-265 mm, ultrasonic wave envelope range value V decays to 500 from 2000.
When the straightline propagation distance S between ultrasonic pen 1 and reception energy converter 2 is remained unchanged, writing physical strength G is with ultrasound
The increase of wave envelope amplitude V and increase.Specially：As shown in figure 3, when ultrasonic pen 1 and receiving the straight-line transmitting between energy converter 2
When broadcasting distance S and being respectively 35mm and 60mm, writing physical strength G increases with sound wave envelope range value V and is increased respectively.
Therefore, according to the writing physical strength G of ultrasonic pen 1, ultrasonic pen 1 and receive energy converter 2 between straightline propagation away from
Ultrasonic wave envelope attenuation meter, obtained ultrasonic wave can be established from the variation relation between S, ultrasonic wave envelope range value V this three
Envelope decay table is as shown in Figure 4.
In this step, it is described receive energy converter 2 quantity at least two, the ultrasonic pen 1 with receive energy converter 2 it
Between straightline propagation distance refer to by any one reception energy converter 2 on the basis of, pen tip straight-line transmitting of the ultrasonic wave from ultrasonic pen 1
It is multicast to the distance that the benchmark receives energy converter 2, as shown in Fig. 5 dotted lines.
（2）When writing, according to three-point positioning method, ultrasonic pen 1 is first calculated currently on clipboard by controller 3
Touch location goes out ultrasonic pen 1 further according to obtained touch location calculation and receives the straightline propagation distance S between energy converter 2,
The ultrasonic wave envelope range value V acquired corresponding to the touch location simultaneously finally passes through ultrasonic wave envelope attenuation meter by controller 3
It can judge current writing physical strength.Specially：As shown in figure 4, when ultrasonic pen 1 and receiving the straight-line transmitting between energy converter 2
Broadcast distance S be 160mm when, controller 3 detect current ultrasonic wave envelope range value V be 4000, controller 3 is according to ultrasound wave packages
Network attenuation meter can determine that current writing physical strength G is 110g.
Claims (3)
1. a kind of method of detection writing physical strength, which is characterized in that include the following steps：
（1）The writing physical strength of ultrasonic pen is set as G, ultrasonic pen and the straightline propagation distance received between energy converter are S, are surpassed
Sound wave envelope range value be V, according to the writing physical strength G of ultrasonic pen, ultrasonic pen and receive energy converter between straightline propagation away from
Ultrasonic wave envelope attenuation meter is established from S and ultrasonic wave envelope range value V；
（2）When writing, touch location of the ultrasonic pen on clipboard is calculated by controller, according to touch location calculation excess of export
Straightline propagation distance S between sound wave pen and reception energy converter, while acquiring the ultrasonic wave envelope width corresponding to the touch location
Value V, then current writing physical strength can be judged by ultrasonic wave envelope attenuation meter.
2. a kind of method of detection writing physical strength as described in claim 1, it is characterised in that：The step（1）In, ultrasonic wave
Pen writing physical strength G, ultrasonic pen and receive energy converter between straightline propagation distance S and ultrasonic wave envelope range value V three it
Between relationship be：When writing physical strength G is remained unchanged, ultrasonic wave envelope range value V is between ultrasonic pen and reception energy converter
The increase of straightline propagation distance S and decay；When the straightline propagation distance S between ultrasonic pen and reception energy converter is remained unchanged
When, writing physical strength G increases with the increase of ultrasonic wave envelope range value V.
3. a kind of method of detection writing physical strength as described in claim 1, it is characterised in that：The quantity for receiving energy converter
At least two, the ultrasonic pen and the straightline propagation distance received between energy converter refer to any one reception energy converter
On the basis of, ultrasonic wave receives the distance of energy converter from the pen tip straightline propagation of ultrasonic pen to the benchmark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253072.0A CN108733268A (en) | 2017-04-18 | 2017-04-18 | A method of detection writing physical strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253072.0A CN108733268A (en) | 2017-04-18 | 2017-04-18 | A method of detection writing physical strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108733268A true CN108733268A (en) | 2018-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710253072.0A Pending CN108733268A (en) | 2017-04-18 | 2017-04-18 | A method of detection writing physical strength |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102275A (en) * | 1985-02-05 | 1986-12-03 | 齐尼思电子公司 | Acoustic wave touch panel system |
| US20030173869A1 (en) * | 2002-03-15 | 2003-09-18 | Kyocera Corporation | Ultrasonic motor and guide apparatus having the same as driving source of movable body |
| CN101029931A (en) * | 2007-01-24 | 2007-09-05 | 广东威创日新电子有限公司 | Ultrasonic positioner and its positioning method |
| CN102375624A (en) * | 2010-08-27 | 2012-03-14 | 刘中华 | Ultrasonic handwriting board of flat plate structure |
| CN104169848A (en) * | 2011-11-18 | 2014-11-26 | 森顿斯公司 | Detecting touch input force |
| CN105045415A (en) * | 2015-08-07 | 2015-11-11 | 成都吉锐时代触摸技术有限公司 | Handwriting positioning method for ultrasonic wave pen |
| CN106020573A (en) * | 2016-05-18 | 2016-10-12 | 成都吉锐时代触摸技术有限公司 | Writing method for ultrasonic pen |
| CN106354304A (en) * | 2016-08-24 | 2017-01-25 | 京东方科技集团股份有限公司 | Touch panel, touch device and drive method of touch device |
-
2017
- 2017-04-18 CN CN201710253072.0A patent/CN108733268A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86102275A (en) * | 1985-02-05 | 1986-12-03 | 齐尼思电子公司 | Acoustic wave touch panel system |
| US20030173869A1 (en) * | 2002-03-15 | 2003-09-18 | Kyocera Corporation | Ultrasonic motor and guide apparatus having the same as driving source of movable body |
| CN101029931A (en) * | 2007-01-24 | 2007-09-05 | 广东威创日新电子有限公司 | Ultrasonic positioner and its positioning method |
| CN102375624A (en) * | 2010-08-27 | 2012-03-14 | 刘中华 | Ultrasonic handwriting board of flat plate structure |
| CN104169848A (en) * | 2011-11-18 | 2014-11-26 | 森顿斯公司 | Detecting touch input force |
| CN105045415A (en) * | 2015-08-07 | 2015-11-11 | 成都吉锐时代触摸技术有限公司 | Handwriting positioning method for ultrasonic wave pen |
| CN106020573A (en) * | 2016-05-18 | 2016-10-12 | 成都吉锐时代触摸技术有限公司 | Writing method for ultrasonic pen |
| CN106354304A (en) * | 2016-08-24 | 2017-01-25 | 京东方科技集团股份有限公司 | Touch panel, touch device and drive method of touch device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
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| RJ01 | Rejection of invention patent application after publication |