CN103995590A - Electronic handwriting pen and method for correcting pen holding gestures - Google Patents
Electronic handwriting pen and method for correcting pen holding gestures Download PDFInfo
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- CN103995590A CN103995590A CN201410208951.8A CN201410208951A CN103995590A CN 103995590 A CN103995590 A CN 103995590A CN 201410208951 A CN201410208951 A CN 201410208951A CN 103995590 A CN103995590 A CN 103995590A
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Abstract
The invention provides an electronic handwriting pen and method for correcting pen holding gestures. The electronic handwriting pen comprises a gesture detection module, a distance sensing module, a gyroscope, a central processing module, a control button, a loudspeaker, a power supply module and a display screen, the electronic handwriting pen detects the pen holding gestures and provides different correction suggests according to the different pen holding gestures, and the function of intelligently correcting the pen holding gestures is achieved. The electronic handwriting pen combines the advantages of an electronic pen and a common handwriting pen, and is an electronic handwriting pen suitable for writing on paper. The electronic handwriting pen has the electrical characteristics and the data access capacity of the electronic pen and has the advantages of being portable and natural and having paper writing universality of a traditional pen, enjoyment is brought to studying through right gesture guiding and error gesture alarming in the daily writing process, the pen holding gestures of primary and secondary school students can be corrected in an unconsciously-influenced mode in the daily writing exercising process, and the correcting process can be carried out under the condition that no parents and teachers supervise and participate in the correction.
Description
Technical field:
The present invention relates to a kind of for correcting the electronic handwriting pen of pen holding posture, be specifically related to point the posture holding a pen and the correctness of setting the parameter detecting pen holding posture of pen by detection, then by providing sound and visual feedback to realize writing pencil and the method for Intelligent correction pen holding posture for user provides rectification suggestion.
Background technology: along with popularizing of electronic product, pen type affects people's life alternately subtlely, while especially using on touch-screen, by the mode of pen input, take full advantage of the various build-in attributes of pen, such as pitch angle, rotation angle, position angle and the pressure etc. of pen, therefore have than finger touch input and have the advantages such as input bandwidth is high, precision is high.When using about people, the parameters scope of the build-in attribute of pen is by Yizhong Xin, Xiaojun Bi, Xiangshi Ren (list of references: Natural Use Profiles for the Pen:An Empirical Exploration of Pressure, Tilt, and Azimuth, CHI'12, May5-10, 2012, Austin, Texas, USA.) provide, the scope at the pitch angle 95% while using correct body position Writing-painting such as people is between [47 °-77 °], tilt angle ranges when therefore the central processing control module of utilization pen is stored correct holding posture, determine whether pitch angle meets this scope when using, correctness with judgement pen holding posture is feasible.
Even but present stage electronic product universal extensively, student is in Learning in School or take paper media as main, and practise hard-tipped pen calligraphical works, drawing etc. about the activity of teaching aspect, paper media still has sizable advantage, meanwhile, students in middle and primary schools' rate of myopia is in rising trend, this with do not form at ordinary times the correct custom close relation of writing.The urgent hope of the head of a family and school can be found a kind of effectively correcting writing posture, prevent the method that myopia occurs, and by correcting pen holding posture, assists correcting writing posture can make up this demand.How current correction pen constructs by peculiar profile, forces user to hold a pen and reach rectification object with the posture of fixing, and Intelligence Feedback mechanism is not provided, and is difficult to reach the object of thorough rectification pen holding posture.
Summary of the invention
Goal of the invention: the invention provides a kind ofly for correcting electronic handwriting pen and the method for pen holding posture, its objective is and solve in unsupervised situation, the incorrect problem of pen holding posture.
Technical scheme: the present invention is achieved through the following technical solutions:
A kind of for correcting the electronic handwriting pen of pen holding posture, comprise the shaft of a writing brush, it is characterized in that: this writing pencil comprises gestures detection module, Distance-sensing module, gyroscope, central processing module, control button, loudspeaker, supply module and display screen, this gestures detection module is positioned at the shaft of a writing brush surface of a body front end; Distance-sensing module is positioned at shaft of a writing brush tail end; Gyroscope and central processing module are arranged at the inside of the shaft of a writing brush; Control button, loudspeaker and display location when correct holding posture finger contact less than position; Gestures detection module, Distance-sensing module, gyroscope and control button are connected to central processing module, and central processing module is connected with loudspeaker, supply module and display screen.
Utilize the above-mentioned antidote of implementing for correcting the electronic handwriting pen of pen holding posture, it is characterized in that: the concrete steps of this antidote are as follows:
(1) using pen to write, when drawing waits operation, user is held in thumb by the shaft of a writing brush, forefinger, between middle finger, finger contacts with gestures detection module, gestures detection module covers shaft of a writing brush front end, gestures detection module is for detecting the matrix flexible PCB plate of finger pen griping position, pcb board is covered with to pressure detector, utilizing pressure detector to detect points the electric signal while contacting with the shaft of a writing brush and transfers the signal to the central processing module, utilize central processing module by the central point (x of the finger by detecting in matrix flexible PCB matrix and flexible PCB matrix contact position, y) quantity and distance between each central point judge that the shape that finger captures position on the shaft of a writing brush judges that whether pen holding posture is correct: if the central point (x that the finger detecting contacts with flexible PCB, y) quantity is not equal to 3, illustrate that user uses two, four or five fingers hold a pen, central processing module is judged pen holding posture mistake, owing to the central point (x of thumb contact position can being detected
t, y
t) and forefinger contact position central point (x
i, y
i) and the central point (x of middle finger contact position
m, y
m), 1/3rd the length that wherein in three points, the distance value of any two points is greater than pcb board length judges that writing posture is incorrect, simultaneously according to the observation to correct pen holding posture, forefinger is front, thumb is left back, middle finger is in bottom right, and the correct holding posture that forefinger should be lower compared with thumb, can know that the relation of the contact position of these three fingers on pcb board exists y
t>y
i>y
m, otherwise judge that pen holding posture is incorrect,
(2) utilize apart from the range sensor of installing in detection module detect the axis of prolonging pen to the shelter on a tail direction extended line distance D with a tail, the time of returning according to Distance-sensing module transmitting infrared pulse can calculate D, by formula
D＝CΔt/2 (1)
Wherein C is infrared pulse velocity of propagation, if D is less than 15cm, judges that writing posture is incorrect, infrared pulse detected and runs into from being transmitted into the time t that object reflects
1be greater than the time t that central processing module sets
2, prolong the axis of pen to have no occluder on an extended line of tail direction, show by correct apart from the pen holding posture of this section processes of detection module; And the in the situation that of writing posture mistake, infrared pulse runs into from being transmitted into the time t that object reflects
1be less than the time t that central processing module sets
2, (the Ct of a tail extended line
1/ 2) reasons such as block in cm distance, user does not just sit, and head and writing surface distance are too near can cause blocks, and this distance can not be greater than 15cm, can calculate t
2be 10
-8s, even t
1be greater than 10
-8s, just can utilize central processing module to judge user's writing posture mistake;
(3) utilize gyroscope detecting pen and write the pitch angle of plane, when the inclined angle alpha of pen with the plane of writing being detected
nthe scope α setting at central processing module
l-α
h, in the time of within 47 °-77 °, pen is within correct slant range, if α
nbe less than α
l, 47 °, pen is too pressed close to writing surface, if α
nbe greater than α
h77 °, pen is almost vertical with writing surface, now just utilizes central processing module to judge user's writing posture mistake, wherein α
lfor the lower limit pitch angle of established standards scope, α
hupper limit pitch angle for established standards scope;
(4) if the data judgement pen holding posture detecting according to above each module is correct, do not need to correct pen holding posture, when any link wherein, pen holding posture to be detected incorrect, just judge that pen holding posture is incorrect, and when user's pen holding posture mistake, utilize loudspeaker and display screen all to provide prompting, inform that the current pen holding posture of user is wrong, and according to the mistake of current pen holding posture, provide some rectification suggestions of correct holding posture, and can provide different suggestions for different wrong pen holding postures;
(5) user is pressed switch to open, is closed the power supply of the writing pencil of correcting pen holding posture by control, and when not wanting to use loudspeaker mute speaker.
The length of this flexible PCB plate is 30% of shaft of a writing brush total length, is positioned at from apart from nib 10% to the position apart from nib 40%, and width is for according to determining around the pen length of one week and by the thickness of penholder, and this plate all surrounds the shaft of a writing brush of this fragment position.
Advantage and effect:
The invention provides a kind of for correcting electronic handwriting pen and the method for pen holding posture, this writing pencil comprises gestures detection module, Distance-sensing module, gyroscope, central processing module, control button, loudspeaker, supply module and display screen, the present invention detects pen holding posture and provides different rectification suggestions according to different pen holding postures, has realized the function of Intelligent correction pen holding posture.
The present invention combines the advantage of electronic pen and common lettering pen, is a kind of electronic handwriting pen that is applicable to write on paper.It combines electrical specification and the data access ability of electronic pen, and portable, the nature of traditional pen and paper are write the advantage of universality, by correct attitude guiding and wrong attitude in daily writing process, warn, give and learning in pleasure, students in middle and primary schools are write in process in exercise at ordinary times, corrected pen holding posture, and this correction procedure can not carry out in the situation that there is no the head of a family and teacher's supervision and participating in completely subtlely.
The concrete advantage of the present invention is as follows:
(1) utilize the build-in attribute information of multiple degrees of freedom pen to carry out a situation for monitor user ', make full use of the multiple intrinsic parameter of pen.
(2), in the situation that not needing other people to intervene, can supervise student's the situation that holds a pen.
(3) have intelligently, hommization more, can provide different promptings to incorrect pen holding posture, can select loudspeaker whether to give voice message by controlling button, meanwhile on display screen, provides the suggestion of correct holding posture.
(4) easy to operate, and normally on paper, write at ordinary times unanimously, in the situation that every day use conventional pen is write, conversion is used after this correction pen, and learning cycle is short.
(5) Consideration is comprehensive, by finger gripping in the position of pen, while holding and these comprehensive sitting posture factors of distance of the formed pitch angle of writing surface, head or other objects and shaft of a writing brush tail end all take into account.
Accompanying drawing explanation:
Fig. 1 (a) is for correcting the structural representation of the writing pencil of pen holding posture in the present invention;
Fig. 1 (b) is gestures detection module expansion schematic diagram in the present invention;
Fig. 2 is wrong pen holding situation schematic diagram;
Fig. 3 is schematic diagram in the correct situation of pen holding posture in the present invention;
Fig. 4 is that the present invention judges the whether correct process flow diagram of pen holding posture;
Fig. 5 is each module connection diagram in the present invention.
Embodiment: the present invention will be further described below in conjunction with accompanying drawing:
The invention provides a kind of for correcting the electronic handwriting pen of pen holding posture, comprise the shaft of a writing brush, this writing pencil comprises gestures detection module, Distance-sensing module, gyroscope, central processing module, control button, loudspeaker, supply module and display screen, and this gestures detection module is positioned at the shaft of a writing brush surface of a body front end; So-called front end is exactly the position near nib; Distance-sensing module is positioned at shaft of a writing brush tail end; Gyroscope and central processing module are arranged at the inside of the shaft of a writing brush; Control button, loudspeaker and display location when correct holding posture finger contact less than position; Gestures detection module, Distance-sensing module, gyroscope and control button are connected to central processing module, and central processing module is connected with loudspeaker, supply module and display screen.
External structure of the present invention as shown in Figure 1.In appearance, principal character of the present invention is at anterior end of pen, by gestures detection module 7, to be covered on the basis of common lettering pen, and a rear end is by controlling button 3, loudspeaker 4, display screen 6, Distance-sensing module 5 forms, and the inside of pen is comprised of gyroscope 1 and central processing module 2.
Central processing module is processed finger distribution range data, range data, the pitch angle data of coming from gesture sensor, range sensor, gyroscope collection and is done on the extended line that overall treatment obtains finger and a positional information contacting, shaft of a writing brush tail end whether have the information such as object blocks, then judge whether to meet in the parameter area having set, judge user's pen holding posture, and the pen holding posture of user's finger is resolved to the operational order that whether gives the suggestion of correct holding posture, then conclusions and recommendations is provided by loudspeaker and display screen; Supply module is responsible for to whole circuit supply.
Utilize the above-mentioned antidote of implementing for correcting the electronic handwriting pen of pen holding posture, it is characterized in that: the concrete steps of this antidote are as follows:
(1) using pen to write, when drawing waits operation, user is held in thumb by the shaft of a writing brush, forefinger, between middle finger, finger contacts with gestures detection module, wherein gestures detection module covers shaft of a writing brush front end, gestures detection module is for detecting the matrix flexible PCB plate of finger pen griping position, the length of this flexible PCB plate is 30% of shaft of a writing brush total length, be positioned at from apart from nib 10% to the position apart from nib 40%, width is for according to determining around the pen length of one week and by the thickness of penholder, this plate all surrounds the shaft of a writing brush of this fragment position, for example the total length of pen is 15cm, the peripheral girth of the shaft of a writing brush is 3cm, the length of flexible PCB plate is 4.5cm (30%*15cm), , wide is 3cm, pcb board lower limb is apart from nib 1.5cm (10%*15cm), coboundary is apart from nib 6cm (40%*15cm), pcb board is covered with to pressure detector, electric signal while contacting with the shaft of a writing brush for detection of finger is also sent to central processing module, by the finger that detects in matrix flexible PCB matrix and the central point (x of flexible PCB matrix contact position, y) quantity and distance between each central point judge that the shape that finger captures position on the shaft of a writing brush judges that whether pen holding posture is correct: if the central point (x that the finger detecting contacts with flexible PCB, y) quantity is not equal to 3, illustrate that user uses two, four or five fingers hold a pen, central processing module is judged pen holding posture mistake, owing to the central point (x of thumb contact position can being detected
t, y
t) and forefinger contact position central point (x
i, y
i) and the central point (x of middle finger contact position
m, y
m), 1/3rd the length that wherein in three points, the distance value of any two points is greater than pcb board length judges that writing posture is incorrect, simultaneously according to the observation to correct pen holding posture, forefinger is front, thumb is left back, middle finger is in bottom right, and the correct holding posture that forefinger should be lower compared with thumb, can know that the relation of the contact position of these three fingers on pcb board exists y
t>y
i>y
m, otherwise judge that pen holding posture is incorrect,
(2) apart from detection module mounting distance sensor, for detection of the axis of prolonging pen to the shelter on a tail direction extended line distance D with a tail, the time of returning according to Distance-sensing module transmitting infrared pulse can calculate D, by formula
D＝CΔt/2 (1)
Wherein C is infrared pulse velocity of propagation, if D is less than 15cm, judges that writing posture is incorrect, and therefore infrared pulse being detected runs into from being transmitted into the time t that object reflects
1be greater than the time t that central processing module sets
2, prolong the axis of pen to have no occluder on an extended line of tail direction, show by correct apart from the pen holding posture of this section processes of detection module.And the in the situation that of writing posture mistake, infrared pulse runs into from being transmitted into the time t that object reflects
1be less than the time t that central processing module sets
2, (the Ct of a tail extended line
1/ 2) reasons such as block in cm distance, user does not just sit, and head and writing surface distance are too near can cause blocks, and this distance can not be greater than 15cm, can calculate t
2be 10
-8s, even t
1be greater than 10
-8s, central processing module will be judged user's writing posture mistake;
(3) when using about people tilt angle ranges by document (list of references: Natural Use Profiles for the Pen:An Empirical Exploration of Pressure, Tilt, and Azimuth) provide, therefore the scope at the pitch angle 95% when people use correct body position Writing-painting, between [47 °-77 °], utilizes gyroscope the inclined angle alpha of pen and the plane of writing to be detected
nthe scope α setting at central processing module
l-α
h, in the time of within [47 °-77 °], pen is within correct slant range, if α
nbe less than α
l(47 °) pen too press close to writing surface, if α
nbe greater than α
h(77 °) pen are almost vertical with writing surface, and now central processing module will be judged user's writing posture mistake, wherein α
lfor the lower limit pitch angle of established standards scope, α
hupper limit pitch angle for established standards scope;
(4) if the data that each module detects above all show that pen holding posture is correct, do not need to correct pen holding posture, when any link wherein, pen holding posture to be detected incorrect, just judge that pen holding posture is incorrect, and when user's pen holding posture mistake, utilize loudspeaker and display screen all to provide prompting, inform that the current pen holding posture of user is wrong, and according to the mistake of current pen holding posture, provide some rectification suggestions of correct holding posture, and can provide different suggestions for different wrong pen holding postures;
(5) user is pressed switch to open, is closed the power supply of the writing pencil of correcting pen holding posture by control, and when not wanting to use loudspeaker mute speaker.
Practical application of the present invention is exemplified below:
The invention provides a kind of writing pencil and the method that can correct pen holding posture.This electronic handwriting pen is write on paper at a traditional handwriting book, on the basis of painting function, realize the mode of the Intelligent correction pen holding posture under unmanned supervision: user obtains prompting when holding a pen fault, and provided different rectification suggestions according to different wrong pen holding postures.
As shown in Figure 2, hand is not within normally writing the scope of holding a pen, now the range sensor of pen end detects should not have the orientation of blocking to occur blocking normally writing, therefore because a tail is almost parallel to and writes literally, the distance detector of a tail detects arm or other positions of causing the user of blocking; The distribution that simultaneously gestures detection sensor detects thumb, forefinger, middle finger does not belong to the distribution range of normal pen holding posture; Gyroscope detect pen with the pitch angle of writing surface not within the scope of correct holding posture, now loudspeaker gives miscue, display screen gives the suggestion of correct holding posture.
As shown in Figure 3, for using, the operation such as in correct holding posture situation, write, it is correct that now gestures detection module detects three finger relative positions that hold a pen, the inclined angle alpha detecting
nalso at normal scope [α
l, α
h] in, distance detector detects on an extended line of the tail rear end shaft of a writing brush does not have object, and pen holding posture is correct.While using if do not want, turn off power supply.
Claims (3)
1. one kind for correcting the electronic handwriting pen of pen holding posture, comprise the shaft of a writing brush, it is characterized in that: this writing pencil comprises gestures detection module, Distance-sensing module, gyroscope, central processing module, control button, loudspeaker, supply module and display screen, this gestures detection module is positioned at the shaft of a writing brush surface of a body front end; Distance-sensing module is positioned at shaft of a writing brush tail end; Gyroscope and central processing module are arranged at the inside of the shaft of a writing brush; Control button, loudspeaker and display location when correct holding posture finger contact less than position; Gestures detection module, Distance-sensing module, gyroscope and control button are connected to central processing module, and central processing module is connected with loudspeaker, supply module and display screen.
2. utilize the antidote of implementing for correcting the electronic handwriting pen of pen holding posture described in claim 1, it is characterized in that: the concrete steps of this antidote are as follows:
(1) using pen to write, when drawing waits operation, user is held in thumb by the shaft of a writing brush, forefinger, between middle finger, finger contacts with gestures detection module, gestures detection module covers shaft of a writing brush front end, gestures detection module is for detecting the matrix flexible PCB plate of finger pen griping position, pcb board is covered with to pressure detector, utilizing pressure detector to detect points the electric signal while contacting with the shaft of a writing brush and transfers the signal to the central processing module, utilize central processing module by the central point (x of the finger by detecting in matrix flexible PCB matrix and flexible PCB matrix contact position, y) quantity and distance between each central point judge that the shape that finger captures position on the shaft of a writing brush judges that whether pen holding posture is correct: if the central point (x that the finger detecting contacts with flexible PCB, y) quantity is not equal to 3, illustrate that user uses two, four or five fingers hold a pen, central processing module is judged pen holding posture mistake, owing to the central point (x of thumb contact position can being detected
t, y
t) and forefinger contact position central point (x
i, y
i) and the central point (x of middle finger contact position
m, y
m), 1/3rd the length that wherein in three points, the distance value of any two points is greater than pcb board length judges that writing posture is incorrect, simultaneously according to the observation to correct pen holding posture, forefinger is front, thumb is left back, middle finger is in bottom right, and the correct holding posture that forefinger should be lower compared with thumb, can know that the relation of the contact position of these three fingers on pcb board exists y
t>y
i>y
m, otherwise judge that pen holding posture is incorrect,
(2) utilize apart from the range sensor of installing in detection module detect the axis of prolonging pen to the shelter on a tail direction extended line distance D with a tail, the time of returning according to Distance-sensing module transmitting infrared pulse can calculate D, by formula
D＝CΔt/2 (1)
Wherein C is infrared pulse velocity of propagation, if D is less than 15cm, judges that writing posture is incorrect, infrared pulse detected and runs into from being transmitted into the time t that object reflects
1be greater than the time t that central processing module sets
2, prolong the axis of pen to have no occluder on an extended line of tail direction, show by correct apart from the pen holding posture of this section processes of detection module; And the in the situation that of writing posture mistake, infrared pulse runs into from being transmitted into the time t that object reflects
1be less than the time t that central processing module sets
2, (the Ct of a tail extended line
1/ 2) reasons such as block in cm distance, user does not just sit, and head and writing surface distance are too near can cause blocks, and this distance can not be greater than 15cm, can calculate t
2be 10
-8s, even t
1be greater than 10
-8s, just can utilize central processing module to judge user's writing posture mistake;
(3) utilize gyroscope detecting pen and write the pitch angle of plane, when the inclined angle alpha of pen with the plane of writing being detected
nthe scope α setting at central processing module
l-α
h, in the time of within 47 °-77 °, pen is within correct slant range, if α
nbe less than α
l, 47 °, pen is too pressed close to writing surface, if α
nbe greater than α
h77 °, pen is almost vertical with writing surface, now just utilizes central processing module to judge user's writing posture mistake, wherein α
lfor the lower limit pitch angle of established standards scope, α
hupper limit pitch angle for established standards scope;
(4) if the data judgement pen holding posture detecting according to above each module is correct, do not need to correct pen holding posture, when any link wherein, pen holding posture to be detected incorrect, just judge that pen holding posture is incorrect, and when user's pen holding posture mistake, utilize loudspeaker and display screen all to provide prompting, inform that the current pen holding posture of user is wrong, and according to the mistake of current pen holding posture, provide some rectification suggestions of correct holding posture, and can provide different suggestions for different wrong pen holding postures;
(5) user is pressed switch to open, is closed the power supply of the writing pencil of correcting pen holding posture by control, and when not wanting to use loudspeaker mute speaker.
3. the antidote of implementing for correcting the electronic handwriting pen of pen holding posture according to claim 2, it is characterized in that: the length of this flexible PCB plate is 30% of shaft of a writing brush total length, be positioned at from apart from nib 10% to the position apart from nib 40%, width is for according to determining around the pen length of one week and by the thickness of penholder, and this plate all surrounds the shaft of a writing brush of this fragment position.
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|---|---|---|---|
| CN201410208951.8A CN103995590B (en) | 2014-05-16 | 2014-05-16 | Electronic handwriting pen and method for correcting pen holding gestures |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208951.8A CN103995590B (en) | 2014-05-16 | 2014-05-16 | Electronic handwriting pen and method for correcting pen holding gestures |
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| CN103995590B CN103995590B (en) | 2017-01-25 |
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