CN109032387A - A method of pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave - Google Patents
A method of pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave Download PDFInfo
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- CN109032387A CN109032387A CN201810792571.1A CN201810792571A CN109032387A CN 109032387 A CN109032387 A CN 109032387A CN 201810792571 A CN201810792571 A CN 201810792571A CN 109032387 A CN109032387 A CN 109032387A
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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
- G06F3/033—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
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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
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- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of methods for detecting pen body posture with electromagnetic location dual sensor by ultrasonic wave, specifically includes the following steps: S1, making ultrasonic system, system processing module and electromagnetic sensing positioning system be powered respectively by power module first, corresponding smart pen control unit component is installed in the inside of active capacitance pen simultaneously, microprocessor, MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube are mounted in active capacitance pen respectively, are related to electronic technology field.The method for detecting pen body posture with electromagnetic location dual sensor by ultrasonic wave, substantially increase positioning accuracy, and it realizes well and the inclined azimuth of capacitance pen is accurately calculated and judged, multiple around using pen tip are realized towards different sensing devices to send signal, have achieved the purpose that the position for correcting pen tip according to obliquity information and the thickness for changing pen tip input trajectory.
Description
Technical field
The present invention relates to electronic technology fields, specially a kind of to detect pen body with electromagnetic location dual sensor by ultrasonic wave
The method of posture.
Background technique
Capacitance touching control technology has become the touch technology of current mainstream, and active capacitance pen as with capacitance type touch control screen
Matching used capacitance pen, in be configured with power supply and corresponding control circuit, and can only receive letter with active transmission signal
Number passive capacitance pen compare, have many advantages, such as that pen tip is thin, positioning accuracy is high, can interact, and more accord with compared to finger writing
The use habit that people use this input tool of pen is closed, during being write using active capacitance pen, can detecte actively
The posture of capacitance pen, i.e. its azimuth and inclination angle between touch screen contact surface, the posture information obtained according to detection are true
The location information of active capacitance pen is determined and adjusts, for example, correcting the position of pen tip according to obliquity information, changing pen tip input trajectory
Thickness so that change active capacitance pen input characteristics etc., so that the writing effect of active capacitance pen be made to be closer to very
Real lettering pen.
It is directly to be inclined using IMU detection system to capacitance pen mostly at present when the posture to capacitance pen detects
Oblique angle and position are detected, however, such positioning accuracy is lower, and be can not achieve and are carried out to the inclined azimuth of capacitance pen
It accurately calculates and judges, be unable to reach and the position of pen tip and the thickness for changing pen tip input trajectory are corrected according to obliquity information
Purpose can not achieve the input characteristics for quickly changing active capacitance pen, to can not achieve the writing effect of active capacitance pen more
Adjunction is bordering on true lettering pen.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides one kind detects pen with electromagnetic location dual sensor by ultrasonic wave
It is lower to solve existing positioning accuracy for the method for figure state, and can not achieve and carry out accurately to the inclined azimuth of capacitance pen
Calculating and judgement, be unable to reach according to obliquity information correct pen tip position and change pen tip input trajectory thickness mesh
, it can not achieve the input characteristics for quickly changing active capacitance pen, to can not achieve the writing effect of active capacitance pen more
The problem of close to true lettering pen.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: one kind is fixed with electromagnetism by ultrasonic wave
The method of position dual sensor detection pen body posture, specifically includes the following steps:
S1, make ultrasonic system, system processing module and electromagnetic sensing positioning system logical respectively by power module first
Electricity, while corresponding smart pen control unit component being installed in the inside of active capacitance pen, respectively by microprocessor, six axis of MEMS
Accelerometer, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube are mounted in active capacitance pen, and PVDF ultrasound passes
Sensor, MEMS six-axis accelerometer and gyro sensor place coincidence in stylus；
S2, multiple sensing electrodes are then installed on touch screen, and have certain overlapping portion between each sensing electrode
Point, these sensing electrodes constitute an electrode sensing unit, and electrode sensing unit can send sensing into system processing module
Data information, while electrode sensing unit can be formed by touch screen coordinate analysis unit by plane coordinates pass on touch screen
System；
S3, when people use active capacitance pen when, people can pass through capacitance pen touch touch screen, the pen tip of active capacitance pen
When touching touch screen and generating certain pressure to the surface of touch screen, corresponding sensing electrode can be to people on touch screen
Touching operation carries out electric signal conversion and transmission, and the module of coordinate origin reconstruction at this time can be according to position of the sensing electrode on touch screen
It sets to rebuild coordinate origin；
S4, then the sense of touch pressure detecting module in electromagnetic sensing positioning system can be in the coordinate origin created in S3
Pressure is detected, and the pressure value that will test is sent to the response in sense of touch pressure comparison module and sense of touch pressure comparison module
Pressure value is compared, if reach response pressure value, positioning analysis module can divide the position of newly-built coordinate origin
Analysis, and determine that the position is the position where capacitance pen；
S5, system processing module can control ultrasonic wave three-dimensional localization module and acceleration/angular speed in ultrasonic system
3 d pose positions and the position for newly establishing coordinate origin is identified and confirmed, then coordinate value computing module and 3 d pose
Computing module can analyze the level data information of corresponding multiple sensing electrodes of the position, analyze associated electricity
Incidence relation between flat information data, using infrared signal as ranging synchronization signal, by three-D ultrasonic location technology to touching
It controls pen and carries out three-dimensional positioning in real time, calculate the coordinate value at ultrasonic three-dimensional each moment, start MEMS six-axis accelerometer and top
Spiral shell instrument completes the extraction of acceleration and angular speed signal, calculates 3 d pose using acceleration information amendment angular velocity information；
S6, microprocessor, MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube meeting
The data that detects, and will test to the motion conditions of active capacitance pen, which are transmitted in microprocessor, to be handled, thus real
Now the inclination angle of active capacitance pen is measured；
S7, final system processing module are by the location information of the active capacitance pen confirmed in S4, the master that is calculated in S5
The active capacitance pen inclination angle measured in the azimuth of dynamic condenser pen and S6 is integrated, and entire data information is passed
It send to smart pen control unit and confirms the whole posture situation of active capacitance pen.
Preferably, the electromagnetic sensing positioning system includes sense of touch pressure detecting module, sense of touch pressure comparison module and determines
Position analysis module, the output end of the sense of touch pressure detecting module is connect with the input terminal of sense of touch pressure comparison module, and sense of touch
The output end of pressure comparison module is connect with the input terminal of positioning analysis module.
Preferably, the ultrasonic system includes that ultrasonic wave three-dimensional localization module and acceleration/angular speed 3 d pose are fixed
Position, the output end of the ultrasonic wave three-dimensional localization module are connect with the input terminal of coordinate value computing module, and acceleration/angle speed
The output end of degree 3 d pose positioning is connect with the input terminal of 3 d pose computing module, the coordinate value computing module and three-dimensional
The output end of Attitude Calculation module is connect with the input terminal of controller, and the input of the output end of controller and correction module
End connection, the output end of the correction module and the input terminal of data obtaining module connect, and the output of data obtaining module
End is connect with the input terminal of output module.
Preferably, the ultrasonic wave three-dimensional localization module includes that ultrasonic sensor, the first infrared sensor and second are infrared
Sensor.
Preferably, the system processing module is bi-directionally connected with the realization of electrode sensing unit, and electrode sensing unit is by N
A sensing electrode composition.
Preferably, the system processing module rebuilds module, electromagnetic sensing positioning system, touch screen with coordinate origin respectively
Coordinate analysis unit, smart pen control unit and ultrasonic system realization are bi-directionally connected.
Preferably, the smart pen control unit include microprocessor, MEMS six-axis accelerometer, gyro sensor,
PVDF ultrasonic sensor and infrared transmitting tube, the MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor and
Infrared transmitting tube is bi-directionally connected with microprocessor realization.
(3) beneficial effect
The present invention provides a kind of methods for detecting pen body posture with electromagnetic location dual sensor by ultrasonic wave.With it is existing
Technology, which is compared, to be had following the utility model has the advantages that the method that should detect pen body posture with electromagnetic location dual sensor by ultrasonic wave, has
Body the following steps are included: S1, first by power module make respectively ultrasonic system, system processing module and electromagnetic sensing positioning
System energization, while in the corresponding smart pen control unit component of the inside of active capacitance pen installation, S2 and then on touch screen
Multiple sensing electrodes are installed, and have certain lap between each sensing electrode, S3, use active capacitance pen as people
When, people can touch touch screen by capacitance pen, and the pen tip of active capacitance pen touches touch screen and produces to the surface of touch screen
When giving birth to certain pressure, S4, then the sense of touch pressure detecting module in electromagnetic sensing positioning system can be to the coordinate created in S3
Pressure on origin is detected, S5, system processing module can control ultrasonic wave three-dimensional localization module in ultrasonic system and
Acceleration/angular speed 3 d pose positioning is identified and is confirmed to the position for newly establishing coordinate origin, and positioning is substantially increased
Precision, and realize well and the inclined azimuth of capacitance pen is accurately calculated and judged, it realizes and utilizes pen tip week
Enclose it is multiple send signal towards different sensing devices, reached and the position of pen tip corrected according to obliquity information and changes pen
The purpose of the thickness of sharp input trajectory realizes the input characteristics for quickly changing active capacitance pen.
Detailed description of the invention
Fig. 1 is the working principle block diagram of present system；
Fig. 2 is the working principle block diagram of ultrasonic system of the present invention；
Fig. 3 is the working principle block diagram of ultrasonic wave 3 D positioning system of the present invention；
Fig. 4 is the working principle block diagram of smart pen control unit of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, the embodiment of the present invention provides a kind of technical solution: one kind is by ultrasonic wave with the double biographies of electromagnetic location
The method that sensor detects pen body posture, specifically includes the following steps:
S1, make ultrasonic system, system processing module and electromagnetic sensing positioning system logical respectively by power module first
Electricity, while corresponding smart pen control unit component being installed in the inside of active capacitance pen, respectively by microprocessor, six axis of MEMS
Accelerometer, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube are mounted in active capacitance pen, and PVDF ultrasound passes
Sensor, MEMS six-axis accelerometer and gyro sensor place coincidence in stylus；
S2, multiple sensing electrodes are then installed on touch screen, and have certain overlapping portion between each sensing electrode
Point, these sensing electrodes constitute an electrode sensing unit, and electrode sensing unit can send sensing into system processing module
Data information, while electrode sensing unit can be formed by touch screen coordinate analysis unit by plane coordinates pass on touch screen
System；
S3, when people use active capacitance pen when, people can pass through capacitance pen touch touch screen, the pen tip of active capacitance pen
When touching touch screen and generating certain pressure to the surface of touch screen, corresponding sensing electrode can be to people on touch screen
Touching operation carries out electric signal conversion and transmission, and the module of coordinate origin reconstruction at this time can be according to position of the sensing electrode on touch screen
It sets to rebuild coordinate origin；
S4, then the sense of touch pressure detecting module in electromagnetic sensing positioning system can be in the coordinate origin created in S3
Pressure is detected, and the pressure value that will test is sent to the response in sense of touch pressure comparison module and sense of touch pressure comparison module
Pressure value is compared, if reach response pressure value, positioning analysis module can divide the position of newly-built coordinate origin
Analysis, and determine that the position is the position where capacitance pen；
S5, system processing module can control ultrasonic wave three-dimensional localization module and acceleration/angular speed in ultrasonic system
3 d pose positions and the position for newly establishing coordinate origin is identified and confirmed, then coordinate value computing module and 3 d pose
Computing module can analyze the level data information of corresponding multiple sensing electrodes of the position, analyze associated electricity
Incidence relation between flat information data, using infrared signal as ranging synchronization signal, by three-D ultrasonic location technology to touching
It controls pen and carries out three-dimensional positioning in real time, calculate the coordinate value at ultrasonic three-dimensional each moment, start MEMS six-axis accelerometer and top
Spiral shell instrument completes the extraction of acceleration and angular speed signal, calculates 3 d pose using acceleration information amendment angular velocity information；
S6, microprocessor, MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube meeting
The data that detects, and will test to the motion conditions of active capacitance pen, which are transmitted in microprocessor, to be handled, thus real
Now the inclination angle of active capacitance pen is measured；
S7, final system processing module are by the location information of the active capacitance pen confirmed in S4, the master that is calculated in S5
The active capacitance pen inclination angle measured in the azimuth of dynamic condenser pen and S6 is integrated, and entire data information is passed
It send to smart pen control unit and confirms the whole posture situation of active capacitance pen.
In the present invention, electromagnetic sensing positioning system includes sense of touch pressure detecting module, sense of touch pressure comparison module and positioning
The output end of analysis module, the sense of touch pressure detecting module is connect with the input terminal of sense of touch pressure comparison module, and sense of touch pressure
The output end of power contrast module is connect with the input terminal of positioning analysis module.
In the present invention, ultrasonic system includes that ultrasonic wave three-dimensional localization module and acceleration/angular speed 3 d pose position,
The output end of the ultrasonic wave three-dimensional localization module is connect with the input terminal of coordinate value computing module, and acceleration/angular speed
The output end of 3 d pose positioning is connect with the input terminal of 3 d pose computing module, the coordinate value computing module and three-dimensional appearance
The output end of state computing module is connect with the input terminal of controller, and the input terminal of the output end of controller and correction module
Connection, the output end of the correction module and the input terminal of data obtaining module connect, and the output end of data obtaining module
It is connect with the input terminal of output module.
In the present invention, ultrasonic wave three-dimensional localization module includes ultrasonic sensor, the first infrared sensor and the second infrared biography
Sensor.
In the present invention, system processing module is bi-directionally connected with the realization of electrode sensing unit, and electrode sensing unit is by N number of
Sensing electrode composition.
In the present invention, system processing module is rebuild module, electromagnetic sensing positioning system, touch screen with coordinate origin respectively and is sat
Mark analytical unit, smart pen control unit and ultrasonic system realization are bi-directionally connected.
In the present invention, smart pen control unit include microprocessor, MEMS six-axis accelerometer, gyro sensor,
PVDF ultrasonic sensor and infrared transmitting tube, the MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor and
Infrared transmitting tube is bi-directionally connected with microprocessor realization.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of method for detecting pen body posture with electromagnetic location dual sensor by ultrasonic wave, it is characterised in that: specifically include
Following steps:
S1, ultrasonic system, system processing module and electromagnetic sensing positioning system is made to be powered respectively by power module first, together
When in the inside of active capacitance pen corresponding smart pen control unit component is installed, microprocessor, six axis of MEMS are accelerated respectively
Degree meter, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube are mounted in active capacitance pen, PVDF ultrasonic sensor,
MEMS six-axis accelerometer and gyro sensor place coincidence in stylus；
S2, multiple sensing electrodes are then installed on touch screen, and have certain lap between each sensing electrode, this
A little sensing electrodes constitute an electrode sensing unit, and electrode sensing unit can send sensing data letter into system processing module
Breath, while electrode sensing unit can be formed by plane coordinates relationship on touch screen by touch screen coordinate analysis unit；
S3, when people use active capacitance pen when, people can pass through capacitance pen touch touch screen, active capacitance pen pen tip touching
When to touch screen and generating certain pressure to the surface of touch screen, corresponding sensing electrode can be to the touching of people on touch screen
Operation carries out electric signal conversion and transmission, at this time coordinate origin rebuild module can according to position of the sensing electrode on touch screen come
Rebuild coordinate origin；
S4, then the sense of touch pressure detecting module in electromagnetic sensing positioning system can be to the pressure in the coordinate origin created in S3
The pressure value for being detected, and being will test is sent to the response pressure in sense of touch pressure comparison module and sense of touch pressure comparison module
Value is compared, if reach response pressure value, positioning analysis module can analyze the position of newly-built coordinate origin, and
Determine that the position is the position where capacitance pen；
S5, system processing module can control ultrasonic wave three-dimensional localization module and acceleration/angular speed three-dimensional in ultrasonic system
Attitude orientation identified and confirmed to the position for newly establishing coordinate origin, and then coordinate value computing module and 3 d pose calculate
Module can analyze the level data information of corresponding multiple sensing electrodes of the position, analyze associated level letter
The incidence relation between data is ceased, using infrared signal as ranging synchronization signal, by three-D ultrasonic location technology to stylus
Three-dimensional positioning in real time is carried out, the coordinate value at ultrasonic three-dimensional each moment is calculated, starts MEMS six-axis accelerometer and gyroscope
The extraction for completing acceleration and angular speed signal calculates 3 d pose using acceleration information amendment angular velocity information；
S6, microprocessor, MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor, infrared transmitting tube can be to masters
The motion conditions of dynamic condenser pen are detected, and the data that will test are transmitted in microprocessor and are handled, thus realization pair
The inclination angle of active capacitance pen measures；
S7, final system processing module are by the location information of the active capacitance pen confirmed in S4, the active electricity that is calculated in S5
Hold the active capacitance pen inclination angle measured in the azimuth and S6 of pen to be integrated, and entire data information is sent to
Smart pen control unit confirms the whole posture situation of active capacitance pen.
2. a kind of method that pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave according to claim 1,
It is characterized by: the electromagnetic sensing positioning system includes sense of touch pressure detecting module, sense of touch pressure comparison module and positioning point
Module is analysed, the output end of the sense of touch pressure detecting module is connect with the input terminal of sense of touch pressure comparison module, and sense of touch pressure
The output end of contrast module is connect with the input terminal of positioning analysis module.
3. a kind of method that pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave according to claim 1,
It is characterized by: the ultrasonic system includes ultrasonic wave three-dimensional localization module and acceleration/angular speed 3 d pose positioning, institute
The output end for stating ultrasonic wave three-dimensional localization module is connect with the input terminal of coordinate value computing module, and acceleration/angular speed three
The output end of dimension attitude orientation is connect with the input terminal of 3 d pose computing module, the coordinate value computing module and 3 d pose
The output end of computing module is connect with the input terminal of controller, and the output end of controller and the input terminal of correction module connect
Connect, the input terminal of the output end of the correction module and data obtaining module connects, and the output end of data obtaining module with
The input terminal of output module connects.
4. a kind of method that pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave according to claim 1,
It is characterized by: the ultrasonic wave three-dimensional localization module includes ultrasonic sensor, the first infrared sensor and the second infrared sensing
Device.
5. a kind of method that pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave according to claim 1,
It is characterized by: the system processing module is bi-directionally connected with the realization of electrode sensing unit, and electrode sensing unit is by N number of biography
Sense electrode composition.
6. a kind of method that pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave according to claim 1,
It is characterized by: the system processing module rebuilds module, electromagnetic sensing positioning system, touch screen coordinate with coordinate origin respectively
Analytical unit, smart pen control unit and ultrasonic system realization are bi-directionally connected.
7. a kind of method that pen body posture is detected with electromagnetic location dual sensor by ultrasonic wave according to claim 1,
It is characterized by: the smart pen control unit includes microprocessor, MEMS six-axis accelerometer, gyro sensor, PVDF
Ultrasonic sensor and infrared transmitting tube, the MEMS six-axis accelerometer, gyro sensor, PVDF ultrasonic sensor and infrared
Transmitting tube is bi-directionally connected with microprocessor realization.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810792571.1A CN109032387B (en) | 2018-07-18 | 2018-07-18 | Method for detecting posture of pen body through ultrasonic wave and electromagnetic positioning double sensors |
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|---|---|---|---|
| CN201810792571.1A CN109032387B (en) | 2018-07-18 | 2018-07-18 | Method for detecting posture of pen body through ultrasonic wave and electromagnetic positioning double sensors |
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| CN109032387A true CN109032387A (en) | 2018-12-18 |
| CN109032387B CN109032387B (en) | 2021-07-06 |
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| CN113867562A (en) * | 2021-08-18 | 2021-12-31 | 荣耀终端有限公司 | Touch screen point reporting correction method and device and electronic equipment |
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| Publication number | Publication date |
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| CN109032387B (en) | 2021-07-06 |
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