CN104142737B - Digital pen and spray pen simulation method - Google Patents
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- CN104142737B CN104142737B CN201310184888.4A CN201310184888A CN104142737B CN 104142737 B CN104142737 B CN 104142737B CN 201310184888 A CN201310184888 A CN 201310184888A CN 104142737 B CN104142737 B CN 104142737B
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Abstract
The invention relates to a digital pen and a spray pen simulation method, which can simulate a pencil stub, a crayon, a chalk, a spray gun and the like on a pc.
Description
The technical field is as follows:
the invention relates to a digital pen and a spray pen simulation method, which belong to a digital system and can simulate a pencil stub, a crayon, a chalk, a spray gun and the like on a pc.
Background art:
the existing digital board system can simulate a pencil, a pen and a writing brush, but the simulation of a pencil head, a crayon, a chalk, a spray gun and the like is still to be improved. The drawing is a technology for controlling the orientation, height and inclination degree of a pen, and under the condition that the pen is relatively stable, the higher the degree of freedom is, the stronger the expressive force is, the stronger the drawing power is, the stronger the control force is, and the stronger the control force is, the lower the stability requirement is.
On the other hand, spray guns are sometimes used for drawing, and the existing spray gun simulation system such as a 'coordinate input recording pen and graphic coordinate input system' with the patent number of 991069773 (background document 1) proposes a simulation scheme of the spray gun, wherein a pen point is required to be contacted with a digital board for use, and the simulation scheme is far away from the use method of a real spray gun and is not in line with the use habit; and the pen body is heavy and complex in design and production.
On the other hand, when drawing, an eraser is sometimes used, and the existing eraser simulation system, such as an electromagnetic pen with a pressure-sensitive erasing function and a realization method thereof, which are disclosed in patent No. 2011100543108 (background document 2), proposes an eraser simulation scheme, wherein the eraser function can be completed only by reversing the upper end and the lower end of the pen when the eraser simulation system is used, and two groups of LC resonance circuits are complicated.
A basic patent number 201110156421.X (background document 3) "a soft pen simulation system and a soft pen simulation method" of the present invention discloses an input system that can be operated at a distance from a pointer to a digitizer.
The present invention further solves the above problems based on the above technologies. And further improves the degree of freedom of the existing digital pen.
The invention content is as follows:
the invention aims to realize a digital pen, which is a new solution for simulating drawing tools such as pencil heads, crayons, chalks, spray guns and the like;
increased degrees of freedom, etc.
To achieve the above object, the present invention proposes the following solutions,
a digital pen belongs to a digital system, the digital system comprises a display screen, a graph corresponding to handwriting is displayed on the display screen, the handwriting is related to one or a combination of physical characteristic quantities of the position, the height, the inclination and the pressure of the digital pen, and the digital pen is characterized in that:
the digital pen is shorter than 100 mm;
the digital pen is provided with a first pressure sensor;
the extension part of the first pressure sensor is positioned at the upper end of the digital pen;
the writing is associated with a pressure of the first pressure sensor.
When in use, the upper end of the digital pen is close to the tiger's mouth.
When the digital pen is used, the digital pen moves towards the palm center direction, and the extending part of the first pressure sensor is contacted with the palm surface or the inner side of the finger to generate pressure.
Preferably, the upper end of the digital pen is configured to become thinner towards the lower end.
The digital pen is preferably configured such that the upper end extension of the digital pen has a spherical crown shape.
Preferably, the first pressure sensor is configured to detect that pressure generates corresponding handwriting when the digital pen is in a suspended state; the handwriting is displayed on the display screen.
Preferably, the digital pen is configured with a second pressure sensor; the extending part of the second pressure sensor is positioned at the lower end of the digital pen.
Preferably, the second pressure sensor detects the handwriting corresponding to the pressure in the contact state of the digital pen; the handwriting is displayed on the display screen.
Preferably configured to simulate spraying of said handwriting.
The handwriting simulation eraser can be configured.
It is preferably configured that the digital pen has a first LC resonant circuit.
The first pressure sensor is a pressure-impedance sensor, and the impedance is coupled into the first LC resonant circuit.
The impedance may be configured to be a resistance.
The impedance may be configured to be inductive.
It is preferably configured that the second pressure sensor is a pressure-capacitance sensor, and the capacitance is switched into the first LC resonance circuit.
Preferably configured such that the position of the digital pen has a first height; the display screen displays a first handwriting; the higher the first height, the greater the spray range of the first writing.
Preferably, the digital pen is configured with a first pressure sensor; the extension part of the first pressure sensor is positioned at the upper end of the digital pen; the pressure to which the first pressure sensor is subjected corresponds to the spray intensity of the first handwriting.
Preferably, the digital pen is configured such that the position of the digital pen corresponds to the first handwriting in accordance with a flashlight law.
Preferably, the light source in the flashlight method is a point light source.
The light source in the flashlight method may be configured to be a circular light source.
Preferably, the virtual nozzle in the flashlight method is configured to be circular.
Preferably configured such that the virtual nozzle in the flashlight method comprises a plurality of sub-virtual nozzles.
A spray pen simulation method is provided, which configures the digital pen of the invention; is characterized by comprising the following steps:
the digital pen height is detected.
And determining the simulation state according to the height of the digital pen.
The simulation states include a contact simulation state and a floating simulation state.
And calculating the size of the spraying range according to the height of the digital pen.
And detecting the inclination angle of the digital pen.
And calculating the spraying range and shape according to the inclination angle of the digital pen.
And (4) overlapping the handwriting of the plurality of divided virtual nozzles.
And detecting the pressure of the first pressure sensor, wherein the pressure exceeds a threshold value and then the handwriting is sprayed.
Through the technical scheme, the invention can achieve the aim. Especially in the digital board of the all-in-one machine, compared with the real pencil head, wax crayon and spray pen, the simulation effect is vivid; is in line with human engineering.
Description of the drawings:
FIG. 1 the invention is in use in a hand position
FIG. 2 is a structural outline of an embodiment of the present invention
FIG. 3 is a top structural view of an embodiment of the present invention
FIG. 4 is a lower structure view of the embodiment of the present invention
FIG. 5 is a schematic diagram of a top-side configured force-inductance sensor circuit of the present invention
FIG. 6 is a schematic diagram of the present invention upper end force-resistance sensor circuit
FIG. 7 is a schematic view of the spraying range under different heights and inclinations
FIG. 8 software control flow chart of the present invention
FIG. 9 is a schematic diagram of a plurality of virtual nozzles according to the present invention
List of numbers in the figures
1: digital pen
11: digital pen upper end pressure sensor
111: extension part of upper end pressure sensor
12: digital pen lower end pressure sensor
13: finest position of digital pen holder
2: hand (W.E.)
21: tiger mouth
22: finger(s)
23: palm surface
3: preset nozzle
31: virtual nozzle
C1, C3: capacitor with a capacitor element
C2: force-capacitance sensor
L1: inductance coil
L2: force-inductance sensor
R1: loss equivalent resistance
R2: force-resistance sensor
S1: switch with a switch body
d1, d2, d 3: spray range
A: spray angle profile line
The specific implementation mode is as follows:
the following describes the system principles and implementation methods using embodiments of the present invention.
As shown in fig. 1, which is a schematic diagram of the position of the digital pen placed in the hand when the digital pen is used, two ends of the digital pen are provided with pressure sensors, one is at the lower end of the digital pen, and the other is at the upper end of the digital pen, when the upper end sensor of the digital pen is used, the upper end sensor of the digital pen does not contact the hand, when the pen point is close to the digital plate and the digital screen, the simulation state of the pencil point, the crayon and the chalk is formed (certainly, the simulation state can also simulate the pen and other existing pen forms), because the design of the pen holder is shorter, the length of the pen holder is less than 100mm, the use state is basically the same as the actual use state of the pen, the lower end is provided with a sensor capable of identifying the; when the pen is far away from the digital board, the digital screen enters a suspended pen simulation state at a certain distance, when the front finger holds the digital pen to move towards the palm center, the pressure sensor at the upper end is extruded by the palm surface or the inner side of the finger, handwriting is generated according to the current position, height, inclination and pressure, corresponding graphs are displayed on the display screen, the suspended pen simulation state can simulate a spray pen, an eraser and the like, the simulation of the eraser is quicker and quicker compared with the existing reversal use, the simulation of the spray pen is more flexible than the existing system even if the eraser is reversed, and the improvement of the performance of the spray pen simulation is obvious.
FIG. 2 is a structural outline diagram of an embodiment of the invention, wherein a penholder is designed to be a structure with thick ends and thin middle, and particularly, the penholder becomes thinner and thinner from the upper end of the pen, so that the axial pressure can be increased under the condition of not increasing the finger grip, and the hand feeling is good when the pen is used; the extending part of the upper end pressure sensor is configured into a spherical crown shape, so that the pressure intensity of the contact surface of the hand is reduced, and the hand feeling is good when the pressure sensor is used; as shown in fig. 3, the upper structure diagram of the embodiment of the invention is that the extending end of the upper pressure sensor is a detachable structure, so that a user can select to configure extending parts with different lengths to adapt to fingers with different lengths and adjust hand feeling; the lower structure of the embodiment of the invention shown in fig. 4 is a pressure sensor capable of detecting lateral pressure, and the lower protruding items are configured to be detachable, wherein one protruding item is thicker as shown in the figure, and the operable angle is increased.
As shown in fig. 5, which is a schematic diagram of the circuit of the present invention with a pressure-inductance sensor disposed at the upper end, L1 and C1 form a resonant circuit, L2 is the pressure-inductance sensor disposed at the upper end of the pen, C2 is the pressure-capacitance sensor disposed at the lower end of the pen, S1 is the switch connection with C3 disposed at the side of the pen, L1 receives the electromagnetic induction signal from the position detection circuit and generates an echo, and the detection circuit determines the spatial position, posture and resonant frequency of the pen according to the magnitude of the echo on different antennas.
As shown in fig. 6, which is a schematic diagram of the upper end disposed force-resistance sensor circuit of the present invention, L1 and C1 form a resonant circuit, R2 is a pressure-resistance sensor disposed at the upper end of the pen, C2 is a pressure-capacitance sensor disposed at the lower end of the pen, S1 is a switch connected with C3 disposed at the side of the pen, L1 receives an electromagnetic induction signal from a position detection circuit and generates an echo, and the detection circuit determines the spatial position, posture, resonant frequency, and Q value of the resonant circuit according to the magnitude of the echo on different antennas.
Fig. 7 is a schematic diagram of the spraying ranges at different heights and inclinations, fig. 7 is a schematic diagram of the spraying ranges at different heights and inclinations in the case that the nozzle is circular, d1 is a schematic diagram of the spraying ranges of the pen in the vertical state, the spraying ranges are larger and the spraying density is lower as the height of the pen is higher, d2 is a spraying range of the pen in the inclined state, an approximate ellipse is formed, the spraying ranges are larger and the spraying density is lower as the height of the pen is higher, the inclination of the pen forming the spraying range of d3 is equal to the inclination of the pen in the case of d2, and the height of the pen forming the spraying range of d3 is larger than the height of the pen in the case of d 2; the whole spraying range calculation method can be described as that the spraying pen is regarded as a flashlight, the circular nozzle is a light-transmitting opening, the point light source emits light in the pen, the pressure sensor controls the brightness of the point light source, the spraying range is a part irradiated by the light source, and the distribution of the spraying concentration is compared with the distribution of the illumination intensity, so that the method is called as a flashlight method. The concentration of the spraying can be configured to be controlled and adjusted by the pressure of the upper end pressure sensor, and can be linear proportion or other corresponding relations. And the input parameters of the flashlight method can be selectively combined, such as using one of the parameters of height, inclination and pressure, presetting other parameters, or using the combination of two of the parameters, or using the combination of three of the parameters. The spraying can be uniform spraying or spraying points which are macroscopically compliant with the concentration distribution of the flashlight method.
The calculation method of the spraying range comprises the steps of firstly specifying the shape and the size of a nozzle, specifying a spraying angle contour line (A), then detecting the height and the inclination angle of the spray pen, and determining whether the spray pen is in a suspended simulation state according to the height difference of the spray pen as shown in figure 8; the method comprises the steps of setting a contact simulation state when the height of a pen is smaller than a set threshold value, setting a suspension simulation state when the height of the pen is larger than the set threshold value, calculating handwriting by taking the pressure of a lower end sensor, the plane position of the pen and the inclination angle of the pen as input variables in the contact simulation state, calculating the handwriting by taking the pressure of an upper end pressure sensor, the space position of the pen and the inclination angle of the pen as the input variables in the suspension simulation state, and not operating when the pressure sensor does not detect pressing. The handwriting calculation under the contact state is the prior art, and the calculation method of the handwriting under the suspension state is described below, because the shape of the nozzle is not only round, firstly, as shown in fig. 9, the shape of the nozzle is divided into small round virtual nozzles, the spraying range and the spraying concentration are calculated by using a flashlight method according to the preset spraying angle, the calculated small round spraying height and the calculated inclination angle, the spraying concentration is corrected according to the pressure of a pressure sensor at the upper end, and the current spraying range of the spray pen is obtained by superposing the calculated handwriting of all the small circles in an effective range.
An alternative configuration embodiment of the invention is that a power supply is arranged in the pen, and an oscillating circuit actively transmits electromagnetic induction signals; the upper end force sensor and the lower end force sensor are configured into any combination of the existing force sensors; switching contact simulation and suspension simulation states in other modes, such as keys on a pen; if the calculation speed of the calculation unit allows, the point light source in the method of calculating the spray range using the flashlight method can be replaced with a light source of a designated shape (such as a circle); the virtual nozzles may be configured as any other shape of nozzle such as square, regular hexagon, etc.; a silica gel leather sleeve is arranged outside the pen holder to increase hand feeling and friction force; the injection angle is controlled by the upper end pressure, and the injection angle is larger when the pressure is larger; other digitizer systems that can detect height, tilt, pressure, etc. parameters are used that differ from the principles of electromagnetic inductive pen position sensors.
Note: the embodiments described in the specification are preferred embodiments, and are not exhaustive of the objects, means, and effects of the invention as a whole.
Claims (32)
1. A digital pen, the digital pen belongs to digital system, and digital system includes the display screen, shows the figure that corresponds with the handwriting on the display screen, the handwriting with the position of digital pen is relevant, characterized in that:
the digital pen is shorter than 100 mm;
the digital pen is provided with a first pressure sensor;
the extension part of the first pressure sensor is positioned at the upper end of the digital pen;
the writing is associated with a pressure of the first pressure sensor.
2. The digital pen of claim 1, wherein:
when in use, the upper end of the digital pen is close to the tiger's mouth.
3. The digital pen of claim 1, wherein:
when the digital pen is used, the digital pen moves towards the palm center direction, and the extending part of the first pressure sensor is contacted with the palm surface or the inner side of the finger to generate pressure.
4. The digital pen of claim 1, wherein:
the upper end of the digital pen becomes thinner and thinner towards the lower end.
5. The digital pen of claim 1, wherein:
the upper end of the digital pen extends out of the spherical cap shape.
6. The digital pen of claim 1, wherein:
the first pressure sensor detects that pressure generates corresponding handwriting in a suspended state of the digital pen;
the handwriting is displayed on the display screen.
7. The digital pen of claim 1, wherein:
the digital pen is provided with a second pressure sensor;
the extending part of the second pressure sensor is positioned at the lower end of the digital pen.
8. The digital pen of claim 7, wherein:
the second pressure sensor detects that pressure generates corresponding handwriting in the contact state of the digital pen; the handwriting is displayed on the display screen.
9. The digital pen according to either one of claim 6 or claim 8, wherein:
the handwriting is sprayed in a simulation mode.
10. The digital pen according to either one of claim 6 or claim 8, wherein:
the handwriting emulates an eraser.
11. The digital pen of claim 1, wherein:
the digital pen has a first LC resonant circuit.
12. The digital pen of claim 11, wherein:
the first pressure sensor is a pressure-impedance sensor, and the impedance is coupled into the first LC resonant circuit.
13. The digital pen of claim 12, wherein:
the impedance is a resistance.
14. The digital pen of claim 12, wherein:
the impedance is an inductance.
15. The digital pen of claim 7, wherein:
the digital pen has a first LC resonant circuit;
the second pressure sensor is a pressure-capacitance sensor, and the capacitance is connected to the first LC resonance circuit.
16. A digital pen belongs to a digital system, the digital system comprises a display screen, a graph corresponding to handwriting is displayed on the display screen, the handwriting is related to one or a combination of physical characteristic quantities of the position, the height, the inclination and the pressure of the digital pen, and the digital pen is characterized in that:
the digital pen is shorter than 100 mm;
the position of the digital pen has a first height;
the display screen displays a first handwriting;
the higher the first height, the greater the spray range of the first writing.
17. The digital pen of claim 16, wherein:
the digital pen is provided with a first pressure sensor;
the extension part of the first pressure sensor is positioned at the upper end of the digital pen;
the pressure to which the first pressure sensor is subjected corresponds to the spray intensity of the first handwriting.
18. The digital pen of claim 16, wherein:
the corresponding relation between the position of the digital pen and the first handwriting conforms to a flashlight method.
19. The digital pen of claim 18, wherein:
the light source in the flashlight method is a point light source.
20. The digital pen of claim 18, wherein:
the light source in the flashlight method is a circular light source.
21. The digital pen of claim 18, wherein:
the virtual nozzle in the flashlight method is circular.
22. The digital pen of claim 18, wherein:
the virtual nozzle in the flashlight method includes a plurality of sub-virtual nozzles.
23. A digital pen belongs to a digital system, the digital system comprises a display screen, a graph corresponding to handwriting is displayed on the display screen, the handwriting is related to one or a combination of physical characteristic quantities of the position, the height, the inclination and the pressure of the digital pen, and the digital pen is characterized in that:
the digital pen is shorter than 100 mm;
the digital pen is provided with a first pressure sensor;
the extension part of the first pressure sensor is positioned at the upper end of the digital pen;
the position of the digital pen has a first height;
the display screen displays a first handwriting;
the higher the first height, the greater the spray range of the first writing.
24. The digital pen of claim 23, wherein:
the pressure applied to the first pressure sensor corresponds to the spraying concentration of the first handwriting;
the corresponding relation between the position of the digital pen and the first handwriting conforms to a flashlight method;
the light source in the flashlight method is a point light source;
the virtual nozzle in the flashlight method comprises a plurality of sub-virtual nozzles;
when in use, the upper end of the digital pen is close to the tiger's mouth;
when the digital pen is used, the digital pen moves towards the palm center direction, and the extending part of the pressure sensor is contacted with the hand to generate pressure;
the upper end of the digital pen is thinner and thinner towards the lower end;
the upper end extending part of the digital pen is in a spherical crown shape;
the first pressure sensor detects that pressure generates corresponding handwriting when the digital pen is in a suspended state, and the handwriting is displayed on the display screen;
the digital pen is provided with a second pressure sensor;
the extending part of the second pressure sensor is positioned at the lower end of the digital pen;
the second pressure sensor detects that pressure generates corresponding handwriting under the contact state of the digital pen, and the handwriting is displayed on the display screen;
the handwriting simulation watering can or eraser;
the digital pen has a first LC resonant circuit;
the first pressure sensor is connected into the first LC resonant circuit in a variable impedance mode;
the variable impedance is a variable resistor or an inductor;
the second pressure sensor is coupled into the first LC resonant circuit with a variable capacitance.
25. A method for simulating a pen by using the digital pen according to claim 23, wherein a pressure sensor is arranged at the upper end of the digital pen; when the pressure sensor is used, the extending part of the pressure sensor is contacted with the palm surface or the inner side of the finger to generate pressure; is characterized by comprising the following steps:
the digital pen height is detected.
26. The method of claim 25, characterized by comprising the steps of;
and determining the simulation state according to the height of the digital pen.
27. The method of claim 26, characterized by:
the simulation states include a contact simulation state and a floating simulation state.
28. The method of claim 25, comprising the steps of:
and calculating the size of the spraying range according to the height of the digital pen.
29. The method of claim 25, comprising the steps of:
and detecting the inclination angle of the digital pen.
30. The method of claim 25, comprising the steps of:
and calculating the spraying range and shape according to the inclination angle of the digital pen.
31. The method for simulating a pen according to one of claims 25 to 30, comprising the steps of:
and (4) overlapping the handwriting of the plurality of divided virtual nozzles.
32. The method of simulating a pen according to claim 25, comprising the steps of:
and detecting the pressure of the first pressure sensor, wherein the pressure exceeds a threshold value and then the handwriting is sprayed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310184888.4A CN104142737B (en) | 2013-05-07 | 2013-05-07 | Digital pen and spray pen simulation method |
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| CN201310184888.4A CN104142737B (en) | 2013-05-07 | 2013-05-07 | Digital pen and spray pen simulation method |
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| CN104142737B true CN104142737B (en) | 2020-11-06 |
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| CN108421736B (en) * | 2018-04-24 | 2023-12-15 | 福州大学 | Multifunctional cleaner based on metal rubber |
| CN113360031B (en) * | 2021-03-25 | 2024-10-29 | 维沃移动通信有限公司 | Display method, display device, electronic equipment and storage medium |
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| US20060028456A1 (en) * | 2002-10-10 | 2006-02-09 | Byung-Geun Kang | Pen-shaped optical mouse |
| CN101393491A (en) * | 2007-09-18 | 2009-03-25 | 株式会社和冠 | Position indicator, variable capacitor, position input device and computer system |
| CN101415567A (en) * | 2006-04-04 | 2009-04-22 | 皇家飞利浦电子股份有限公司 | Expressive pen |
| CN201576251U (en) * | 2009-06-02 | 2010-09-08 | 宇龙计算机通信科技(深圳)有限公司 | Novel stylus pen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202548800U (en) * | 2012-04-11 | 2012-11-21 | 罗青 | Electronic signature device |
| CN103019466B (en) * | 2012-11-16 | 2016-01-06 | 厦门大学 | Based on the projection interaction system of infrared acquisition |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060028456A1 (en) * | 2002-10-10 | 2006-02-09 | Byung-Geun Kang | Pen-shaped optical mouse |
| CN101415567A (en) * | 2006-04-04 | 2009-04-22 | 皇家飞利浦电子股份有限公司 | Expressive pen |
| CN101393491A (en) * | 2007-09-18 | 2009-03-25 | 株式会社和冠 | Position indicator, variable capacitor, position input device and computer system |
| CN201576251U (en) * | 2009-06-02 | 2010-09-08 | 宇龙计算机通信科技(深圳)有限公司 | Novel stylus pen |
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