CN204945958U - A kind of active capacitance pen - Google Patents
A kind of active capacitance pen Download PDFInfo
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- CN204945958U CN204945958U CN201520505000.7U CN201520505000U CN204945958U CN 204945958 U CN204945958 U CN 204945958U CN 201520505000 U CN201520505000 U CN 201520505000U CN 204945958 U CN204945958 U CN 204945958U
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Abstract
The utility model discloses a kind of active capacitance pen, this capacitance pen comprises: touch control unit and the information process unit be connected with touch control unit; The pressure transducer that touch control unit comprises the touching signals receiving end for contacting with touch screen terminal and is connected with touching signals receiving end; The attitude sensor of the active capacitance pen positional information of acquisition that information process unit comprises the information transmit-receive unit for transmitting touch information and is connected with information transmit-receive unit.According to the active capacitance pen that the utility model realizes, be integrated with attitude sensor, can improve the sensing precision of capacitance pen, and install power conversion circuits, the effect that farthest can play orientation sensors provides the engineering design of optimization.
Description
Technical field
The utility model belongs to capacitive touch pen field, more specifically, relates to a kind of active capacitance pen.
Background technology
The capacitance plate that capacitive touch screen uses is to form the conducting film of crisscross structure on the film of electrically conducting transparent, and these conducting films can as sender electrode and receiving electrode.When pointer clicks screen, can and sender electrode and receiving electrode all form coupling capacitance, from contact point absorption portion electric current, thus cause the signal of receiving electrode to change, namely capacitive touch screen is when touch screen is in contact with it, the change of the electric field formed by conducting film detects the touch location of touch screen on capacitance plate, thus realizes human-computer interaction function.
And along with the development of capacitance type touch control screen, corresponding capacitance pen demand is also more and more wider, active capacitance pen is mainly as the user of touch screen provides greater functionality on the market at present, but the exploration in precision is less, do not provide the additional auxiliary update information helping touch sensitive device operation, simultaneously because active reason needs powered battery to carry out internal circuit running, cruise-ability is poor.
Utility model content
For above defect or the Improvement requirement of prior art, the utility model provides one, its object is to, and solves the precision problem of touch control capacitance pen, and improves its flying power and correcting process mode more flexibly.
For achieving the above object, according to an aspect of the present utility model, provide a kind of active capacitance pen, it is characterized in that, this capacitance pen comprises:
Touch control unit and the information process unit be connected with described touch control unit;
The pressure transducer that described touch control unit comprises the touching signals receiving end for contacting with touch screen terminal and is connected with described touching signals receiving end;
The attitude sensor of the described capacitance pen positional information of acquisition that described information process unit comprises the information transmit-receive unit for transmitting touch information and is connected with described information transmit-receive unit.
Further, described capacitance pen also comprises power supply unit, it energy conversion module comprising battery and be connected with battery, and the changes mechanical energy that described in described energy conversion module acquisition operations, active capacitance pen produces is electric energy.
Further, described energy conversion module comprises the rotor pendulum top, gear sequence, the power coil that are connected successively, and described power coil is connected with described battery.
Further, described attitude sensor is arranged at the top of described capacitance pen, for improving the sensing function that it moves to described capacitance pen.
In general, the above technical scheme conceived by the utility model compared with prior art can obtain following beneficial effect:
(1) the utility model is by increasing gyroscope, thus carries out location sensing, to improve touch accuracy for the operation of the nib contact contact panel of different angles;
(2) the utility model have employed power conversion circuits, the battery of the changes mechanical energy that the swing of pointer can be produced to be electric energy be pointer charges, thus for ensureing that the operation of user provides better flying power, have employed the design of power conversion circuits simultaneously, often need not change battery, gyroscope can be arranged at the top of pointer on engineering, more effectively to realize the measurement monitoring of pointer state.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of embodiment one of the active capacitive touch pen realized according to the utility model;
Fig. 2 is the one-piece construction schematic diagram of embodiment two of the active capacitive touch pen realized according to the utility model;
Fig. 3 is the one-piece construction schematic diagram of embodiment three of the active capacitive touch pen realized according to the utility model;
Fig. 4 is the one-piece construction schematic diagram of embodiment four of the active capacitive touch pen realized according to the utility model;
Fig. 5 is the concrete structure schematic diagram of energy conversion module of the active capacitive touch pen realized according to the utility model;
Fig. 6 is the schematic diagram that the active capacitive touch pen realized according to the utility model carries out gyrostatic contact deformation measurement of angle.
In all of the figs, identical Reference numeral is used for representing identical original paper or structure, wherein:
1-battery 2-energy conversion module 3-Signal Booster 4-bluetooth module 5-gyroscope 6-pressure transducer 7-nib 8-shell
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.In addition, if below in described each embodiment of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
Embodiment one
As shown in Figure 1, the concrete structure of the capacitance pen realized according to embodiment one of the present utility model comprises for capacitance pen other modular circuits all carry out the battery 1 of powering, and can be the energy conversion module 2 that battery 1 carries out charging, wherein, nib 7 is as the receiving end of touch screen touching signals, transmit signals to pressure transducer 6, calculate pressure information, again this information is transmitted in gyroscope 5, gyroscope 5 is for the vergence direction of pointer of sensing user when operating and angle, and calculate the required offset due to the deformation that produces when nib 7 contacts with touch screen, and this offset is fed back to Signal Booster 3, Signal Booster 3 produces compensated pulse signal and compensates the inductive impulse signal that pressure transducer 6 produces, be finally that this signal sends by the bluetooth module 4 with signal emission function by this information transmission, thus the position received by touch screen after the compensation of this Signal analysis capacitance pen, thus realize the touch information accurately feeding back pointer.
Wherein, as follows according to the course of work of a kind of capacitance pen realized of above-described embodiment:
Step one: touch screen the service of connection devices opened bluetooth function, search capacitance pen bluetooth ID achieves a butt joint;
Step 2: capacitance pen nib contact touch screen panel, nib forms coupling capacitance with the touch-control figure on touch screen panel;
Step 3: the pulsed electron part of touch screen panel flows to capacitance pen by nib, simultaneously pointer nib 7 with calculate force value by pressure transducer 6, this value is transmitted in gyroscope 5;
Step 4: gyroscope 5, by capacitance pen vergence direction during self-detection algorithm calculating practical operation and angle, calculates the offset needed for written 7 contact positions, feeds back to Signal Booster 3;
Step 5: the electron stream flowed into by nib is to Signal Booster 3, and Signal Booster produces the offset generation pulse calculated by step 4 and compensates simultaneously by input signal enhancing this signal, and this signal intensification factor is about 10 ~ 30 times;
Step 6: the signal after Signal Booster 3 amplifies is sent to bluetooth module 4, directly should be sent to touch screen by bluetooth module 4 by the signal after compensated.
Embodiment two
As shown in Figure 2, the concrete structure of the capacitance pen realized according to embodiment one of the present utility model comprises for capacitance pen other modular circuits all carry out the battery 1 of powering, and can be the energy conversion module 2 that battery 1 carries out charging, wherein, nib 7 is as the receiving end of touch screen touching signals, transmit signals to pressure transducer 6, calculate pressure information, again this information is transmitted in gyroscope 5, gyroscope 5 is for the vergence direction of pointer of sensing user when operating and angle, and calculate the required offset due to the deformation that produces when nib 7 contacts with touch screen, and this offset is fed back to Signal Booster 3, Signal Booster 3 produces compensated pulse signal feedback and produces pulse counteracting to nib 7, be exactly now the information produced after compensation by capacitance pen from the information that bluetooth module 4 sends again, thus realize the touch information accurately feeding back pointer.
Wherein, as follows according to the course of work of the capacitance pen of above-described embodiment two realization:
Step one: touch screen the service of connection devices opened bluetooth function, search capacitance pen bluetooth ID achieves a butt joint;
Step 2: capacitance pen nib 7 contact touch screen panel, nib forms coupling capacitance with the touch-control figure on touch screen panel;
Step 3: the pulsed electron part of touch screen panel flows to capacitance pen by nib, simultaneously pointer nib 7 with calculate force value by pressure transducer 6, this value is transmitted in gyroscope 5;
Step 4: gyroscope 5, by capacitance pen vergence direction during self-detection algorithm calculating practical operation and angle, calculates the offset needed for written 7 contact positions, feeds back to Signal Booster 3;
Step 5: the electron stream flowed into by nib is to Signal Booster 3, and Signal Booster produces while the offset generation pulse calculated by step 4 compensates this signal and strengthened by input signal, and this signal intensification factor is about 10 ~ 30 times;
Step 6: feed back to pointer nib 7 through Signal Booster 3 amplifying signal, is formed to pulse with touch screen panel position of touch and offsets, thus realize accurate capacitance pen position of touch with the feedback of touch screen.
In the present embodiment, Signal Booster 3 produces compensated pulse and realizes compensating, and now the signal of nib 7 after over-compensation is again sent to bluetooth module 4 thus realizes the transmission of the touch information after compensating.
Embodiment three
As shown in Figure 3, the concrete structure of the capacitance pen realized according to embodiment three of the present utility model comprises for capacitance pen other modular circuits all carry out the battery 1 of powering, and can be the energy conversion module 2 that battery 1 carries out charging, wherein, nib 7 is as the receiving end of touch screen touching signals, transmit signals to pressure transducer 6, calculate pressure information, again this information is transmitted in gyroscope 5, gyroscope 5 is for the vergence direction of pointer of sensing user when operating and angle, and calculate the required offset due to the deformation that produces when nib 7 contacts with touch screen, and this offset is sent to bluetooth module 4, Signal Booster 3 receives the signal from pressure transducer 6 and transfers to bluetooth module 4 after amplifying it, the compensating signal that this signal and gyroscope 5 generate is sent to touch screen end by last bluetooth module 4 together, thus calculated the positional information of the capacitance pen after correction-compensation according to above-mentioned signal by touch screen.
Wherein, as follows according to the course of work of the capacitance pen of above-described embodiment three realization:
Step one: touch screen the service of connection devices opened bluetooth function, search capacitance pen bluetooth ID achieves a butt joint;
Step 2: capacitance pen nib 7 contact touch screen panel, nib forms coupling capacitance with the touch-control figure on touch screen panel;
Step 3: the pulsed electron part of touch screen panel flows to capacitance pen by nib, simultaneously pointer nib 7 with calculate force value by pressure transducer 6, this value is transmitted in gyroscope 5;
Step 4: gyroscope 5, by capacitance pen vergence direction during self-detection algorithm calculating practical operation and angle, calculates the offset needed for written 7 contact positions, is sent to bluetooth module 4;
Step 5: the electron stream flowed into by nib is to Signal Booster 3, and this signal is transmitted in bluetooth module 4 after method;
Step 6: the signal that bluetooth module 4 is responsible for the needs not having balanced signal and gyroscope to produce compensate sends to touch screen by bluetooth module 4, signal after the computing method of the signal after touch screen end arranges compensation carry out calculation compensation, thus obtain the touch information through over-compensation.
Embodiment four
As shown in Figure 4, the concrete structure of the capacitance pen realized according to embodiment four of the present utility model comprises for capacitance pen other modular circuits all carry out the battery 1 of powering, and can be the energy conversion module 2 that battery 1 carries out charging, wherein, nib 7 is as the receiving end of touch screen touching signals, transmit signals to pressure transducer 6, calculate pressure information, again this information is transmitted in bluetooth module 4, gyroscope 5 is for the vergence direction of pointer of sensing user when operating and angle, and calculate the required offset due to the deformation that produces when nib 7 contacts with touch screen, and this offset is sent to bluetooth module 4, its signal amplification message is transferred to bluetooth module 4 by Signal Booster 3, the information of comprehensive three modules of last bluetooth module 4 is sent to touch screen end together, thus calculated the positional information of the capacitance pen after correction-compensation according to above-mentioned signal by touch screen.
Wherein, as follows according to the course of work of the capacitance pen of above-described embodiment four realization:
Step one: touch screen the service of connection devices opened bluetooth function, search capacitance pen bluetooth ID achieves a butt joint;
Step 2: capacitance pen nib 7 contact touch screen panel, nib forms coupling capacitance with the touch-control figure on touch screen panel;
Step 3: the pulsed electron part of touch screen panel flows to capacitance pen by nib, simultaneously pointer nib 7 with calculate force value by pressure transducer 6, this value is directly transmitted in bluetooth module 4;
Step 4: gyroscope 5, by capacitance pen vergence direction during self-detection algorithm calculating practical operation and angle, calculates the offset needed for written 7 contact positions, is sent to bluetooth module 4;
Step 5: the information that the enhancing to signal of self is amplified is transmitted in bluetooth module 4 by Signal Booster 3;
Step 6: bluetooth module 4 is responsible for the information that all above-mentioned modules have to be sent in touch screen, touch screen gathers above-mentioned all information, utilize built-in algorithm to calculate the touch information after over-compensation, the technology sharpest edges of this kind of embodiment are adopted to be, no matter look on the bright side of things logical or close which kind of function of capacitance pen, transmitting only by the data changing bluetooth module and just can realize.
Wherein in the above-described embodiments, mechanical energy can be converted to electric energy by energy conversion module 2, design concept is stem-winder energy conversion module principle, main building block is what be connected successively: rotor pendulum top 2-1, gear sequence 2-2, power coil 2-3, wherein power coil 2-3 is directly connected with battery 1, wherein, the principle of above-mentioned energy conversion module 2 is: use capacitance pen to operate, and rotor pendulum rudder 2-1 rotates according to motion use; Rotating speed expands by the gear sequence 2-2 that rotates through of rotor pendulum rudder 2-1; The miniature rotor rotated after accelerating rotates and produces magnetic electric charge; It is electric energy that magnetic electric charge carries out electromagnetic conversion by magnetic charge conversion by power coil.
In addition, on the project installation set-up mode of the capacitance pen of above-described embodiment, gyroscope 5 is arranged at the integrally-built the top of capacitance pen, such gyroscope farthest can experience the motion of capacitance pen, but conveniently capacitance pen carries out replacing and the installation of battery, battery in supply module can be positioned over the top of nib, thus gyrostatic installation site is lowered, but once add energy conversion module 2 for the battery in capacitance pen, after the flying power of battery improves, without the need to often changing battery, directly gyroscope can be arranged at integrally-built the top of capacitance pen.Wherein all internal circuits need with pointer shell altogether, touch pen point needs to adopt the mode such as injection moulding to form screen layer and prevents from forming electromagnetic interference (EMI) in handwriting inside.
Should be noted in addition, in the above-described embodiments, specifically be not defined as bluetooth module as the bluetooth module carrying out information interaction with touch screen, it can be the various radio signal propagation mode such as WiFi, bluetooth, Wireless Personal Network (zigbee), RFID, NFC, ultrasound wave.
Wherein, according to above-described embodiment, if complete the computing of compensating signal in capacitance pen, according to above-mentioned gyrostatic be with following algorithm, signal is compensated after calculating vergence direction and angle:
As shown in Figure 6, nib is not when contacting with touch screen, its inclined-plane is an oblique line, but contact after producing and extruding with touch screen, there is outer of extruding and be formed as circular arc in its side, wherein can produce the deformation quantity that is c, and backoff algorithm of the present utility model is embodied in wherein, angle value in the formula at calculating capacitance pen angle of inclination substituting into gyroscope 5 is not the nib 7 of gyroscope 5 actual sensed and the angle theta of touch screen plane, but the revised θ ' of deformation offset has been carried out to this angle, the account form of the revised offset angle of above-mentioned offset is as follows:
Step one: according to written elastic properties of materials deformation coefficient parameters a
Step 2: during practical operation, force value b and capacitance pen nib elastic properties of materials deformation figure parameters a is obtained according to pressure transducer, deformation quantity c is calculated by the elastic deformation figure parameters a of this force value and written material, these three parameters relation each other can adopt experience factor to carry out correspondence mappings, thus on the basis of deformation quantity, carry out the calculating of angle, obtain the θ ' after angle modification, bring the position of touch information that gyrostatic formulae discovery goes out pointer into;
Step 3: pass through obtained parameter and the pulse signal that Signal Booster 3 is launched is compensated, because touch-control coordinate setting computing formula is generally the interpolation method of weighting:
Table 1 touch-control coordinate setting calculations list
| DF1 | DF2 | DF3 |
| DF4 | DF5 | DF6 |
| DF7 | DF8 | DF9 |
Wherein, the difference of the reference value (industry is called baseline) when the discharge and recharge value (industry is called rawdata) when DF refers to touch-control sensing and non-touch-control.
The touch-control coordinate computing formula of capacitance pen is:
X＝X1+((DF1+DF4+DF7)*1+(DF2+DF5+DF8)*2+(DF3+DF6+DF9)*3)/(DF1+DF2+DF3+DF4+DF5+DF6+DF7+DF8+DF9)
Y＝Y1+((DF1+DF2+DF3)*1+(DF4+DF5+DF6)*2+(DF7+DF8+DF9)*3)/(DF1+DF2+DF3+DF4+DF5+DF6+DF7+DF8+DF9)
Wherein, the numerical value such as X1 and Y1 is the reference coordinate amount of touch screen origin position value sensed position, the coefficient 1,2,3 be multiplied are weight parameter.
According to above formula, correcting area is confirmed by vergence direction, correcting area is four grid in above nine grids (because the inclination of capacitance pen only has four kinds of situation: DF1/DF2/DF4/DF5 or DF2/DF3/DF5/DF6 or DF4/DF5/DF7/DF8 or DF5/DF6/DF8/DF9 towards distribution), confirm the impulse correction according to tiltangleθ ' launches Signal Booster 3 contact area after relative orientation, strengthen this direction pulse counteracting.
In addition, if not in electric capacity tip of the brushstyle of a writing or painting offset value calculation, but in terminal offset value calculation, the force value that pressure transducer can not also be adopted to calculate calculates new angle of inclination and gyroscope computing is done to the method compensated, the method that can adopt is: gyroscope location capacitance pen volume coordinate, the volume coordinate of terminal positioning terminal, both volume coordinates carry out spatial operation alternately by bluetooth module 4, calculate measures of dispersion.
Pressure transducer 6 pressure of foundation value is a, and the rank of detected pressures being uniformly distributed is 256 rank (0 ~ 255), when carrying out touch control operation, the pressure stage supplementary biography of judgement being defeated by bluetooth module 4, being communicated by bluetooth module 4 transmitting data with touch screen; Touch-control agreement is for system, and because early stage touch screens has force value, capacitance type touch control screen popular at present retains on data protocol force value, but substantially fails at present to use, such as:
The data protocol of the force value of table 2 capacitance type touch control screen
And in the utility model, pressure transducer 6 can transmit different force value by bluetooth module 4 and give terminal system corresponding to touch screen, after it obtains force value, when user operation, corresponding different functions.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. an active capacitance pen, is characterized in that, this capacitance pen comprises:
Touch control unit and the information process unit be connected with described touch control unit;
The pressure transducer (6) that described touch control unit comprises the touching signals receiving end (7) for contacting with touch screen terminal and is connected with described touching signals receiving end (7);
The attitude sensor (5) of the described capacitance pen positional information of acquisition that described information process unit comprises the information transmit-receive unit (4) for transmitting touch information and is connected with described information transmit-receive unit (4).
2. active capacitance pen as described in claim 1, it is characterized in that, described capacitance pen also comprises power supply unit, it energy conversion module (2) comprising battery (1) and be connected with battery, the changes mechanical energy that described in described energy conversion module (2) acquisition operations, active capacitance pen produces is electric energy.
3. active capacitance pen as described in claim 2, it is characterized in that, described energy conversion module (2) comprises rotor pendulum top (2-1), gear sequence (2-2), the power coil (2-3) that are connected successively, and described power coil (2-3) is connected with described battery (1).
4. as the active capacitance pen in claim 1-3 as described in any one, it is characterized in that, described attitude sensor (5) is arranged at the top of described capacitance pen, for improving the sensing function that it moves to described capacitance pen.
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| CN201520505000.7U CN204945958U (en) | 2015-07-14 | 2015-07-14 | A kind of active capacitance pen |
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| CN201520505000.7U CN204945958U (en) | 2015-07-14 | 2015-07-14 | A kind of active capacitance pen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957804A (en) * | 2016-10-14 | 2018-04-24 | 奕力科技股份有限公司 | Three-dimensional touch device |
| CN109814739A (en) * | 2019-01-29 | 2019-05-28 | 东莞市乐鑫光电科技有限公司 | A kind of active capacitance pen |
| CN110703928A (en) * | 2019-09-27 | 2020-01-17 | 联想(北京)有限公司 | Processing method and electronic equipment |
| CN111344653A (en) * | 2017-09-13 | 2020-06-26 | 深圳传音制造有限公司 | Active capacitance pen applied to intelligent terminal and touch device |
-
2015
- 2015-07-14 CN CN201520505000.7U patent/CN204945958U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957804A (en) * | 2016-10-14 | 2018-04-24 | 奕力科技股份有限公司 | Three-dimensional touch device |
| CN111344653A (en) * | 2017-09-13 | 2020-06-26 | 深圳传音制造有限公司 | Active capacitance pen applied to intelligent terminal and touch device |
| CN109814739A (en) * | 2019-01-29 | 2019-05-28 | 东莞市乐鑫光电科技有限公司 | A kind of active capacitance pen |
| CN110703928A (en) * | 2019-09-27 | 2020-01-17 | 联想(北京)有限公司 | Processing method and electronic equipment |
| CN110703928B (en) * | 2019-09-27 | 2021-04-13 | 联想(北京)有限公司 | Processing method and electronic equipment |
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Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the four floor, No. Patentee after: Wuhan fine test electronics group Limited by Share Ltd Address before: 430070 Hongshan entrepreneurship center, No. 53, Nanhu Avenue, Hongshan District, Wuhan, Hubei Province, four Patentee before: Wuhan Jingce Electronic Technology Co., Ltd. |
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