CN110209307A - Dummy keyboard and device and method for adjusting dummy keyboard projection angle - Google Patents
Dummy keyboard and device and method for adjusting dummy keyboard projection angle Download PDFInfo
- Publication number
- CN110209307A CN110209307A CN201910504617.XA CN201910504617A CN110209307A CN 110209307 A CN110209307 A CN 110209307A CN 201910504617 A CN201910504617 A CN 201910504617A CN 110209307 A CN110209307 A CN 110209307A
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- Prior art keywords
- angle
- dummy keyboard
- projection
- reflecting mirror
- adjustable
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
-
- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
- G06F3/0426—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking fingers with respect to a virtual keyboard projected or printed on the surface
Abstract
A kind of device and method the invention discloses dummy keyboard and for adjusting dummy keyboard projection angle, dummy keyboard includes the reflection microscope group of projection device and adjustable angle, on the image of the projection dummy keyboard to the reflection microscope group, the position that the image reflexes to perspective plane is adjusted by adjusting the deflection angle for reflecting microscope group.The reflection microscope group that the present invention passes through setting projection device and adjustable angle on an electronic device, in projection to reflecting mirror, by adjusting the deflection angle of some or certain several reflecting mirrors, adjustable dummy keyboard image reflexes to the position of desktop for user's use, so as to according to the angle adjust automatically projected position of electronic equipment screen, the projected position that dummy keyboard can be switched between more people, improves the using flexible and convenience of dummy keyboard.
Description
Technical field
It is thrown the present invention relates to social communication technical field more particularly to a kind of dummy keyboard and for adjusting dummy keyboard
The device and method of shadow angle.
Background technique
As science and technology constantly develops, people increasingly tend to facilitation to the mode of life and the use demand of tool, make
Laptop, the portable electronic device of PAD be more and more thinner, computer performance require it is higher and higher.As main frame
Input equipment, keyboard and mouse are user's essential components when carrying out computer operation.People are not influencing to input
While efficiency, the characteristics of preferential meeting considers its convenience.
Currently, dummy keyboard is small in size with its, easy to carry, easy to operate to initially enter people's lives.But virtually
The image device for projecting of keyboard is separated with portable electronic device, is not easy to use at any time, moreover, the crevice projection angle of projection device is solid
It is fixed, angle, the adjustment on direction can not be made so that the position of keyboard pattern projection is fixed, exist cannot according to personal habits and
The problem of adjusting projected position.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of dummy keyboard and for adjusting dummy keyboard projection angle
Device and method are, it can be achieved that the position of dummy keyboard projection image adjusts.
The first aspect of the present invention provides a kind of dummy keyboard of adjustable projection angle, including projection device and adjustable
The reflection microscope group of angle, on the image to the reflection microscope group of the projection dummy keyboard, by adjusting described anti-
The deflection angle for penetrating microscope group adjusts the position that the image reflexes to perspective plane.
Preferably, the projection device and the reflecting mirror are mounted on same electronic equipment.
Preferably, the reflection microscope group includes the first reflecting mirror and the second reflecting mirror around the projection device.
Preferably, first reflecting mirror is rotatably arranged in above the camera lens of the projection device, it is described for adjusting
Position of the perspective plane on the first direction perpendicular to the electronic equipment.
Preferably, the projection device is equipped with upper coverboard, the upper coverboard is located at the top of first reflecting mirror, and
The first coil of one group of logical reverse current is respectively equipped between the rear and front end and the upper housing of first reflecting mirror, it is described
The first coil on first reflecting mirror leads to same direction current.
Preferably, second reflecting mirror is rotatably positioned in two side of camera lens of the projection device, for adjusting
State position of the perspective plane in the second direction for being parallel to the electronic equipment.
Preferably, the projection device is equipped with side coverboard, the side coverboard is located at the separate institute of second reflecting mirror
The side of camera lens is stated, and is respectively equipped with one group of logical reverse current between the upper and lower ends and the side body of second reflecting mirror
The second coil, second coil on second reflecting mirror leads to same direction current.
Preferably, the angle lens of the projection device are adjustable.
The second aspect of the present invention provides a kind of equipment for adjusting dummy keyboard projection angle, which is characterized in that
The dummy keyboard includes the reflection microscope group of the projection device and adjustable angle for projecting the image of dummy keyboard, described to set
It is standby to include:
Detection module, for obtaining the perspective plane deflection angle on the projection device and perspective plane between target position；
Deflection calculation module reflects the image for calculating the reflection microscope group according to the perspective plane deflection angle
To the mirror deflecting angle of the target position；
Operation module, for adjusting the angle of reflection microscope group according to the mirror deflecting angle.
The third aspect of the present invention provides a kind of method for adjusting dummy keyboard projection angle, the dummy keyboard
The reflection microscope group of projection device and adjustable angle including the image for projecting dummy keyboard, which comprises
Obtain the perspective plane deflection angle on the projection device and perspective plane between target position；
The reflection microscope group is calculated according to the perspective plane deflection angle, and the image is reflexed into the target position
Mirror deflecting angle；
The angle of reflection microscope group is adjusted according to the mirror deflecting angle.
As can be seen from the above scheme, the present invention by being arranged the anti-of projection device and adjustable angle on an electronic device
Microscope group is penetrated, in projection to reflecting mirror, by adjusting the deflection angle of some or certain several reflecting mirrors, adjustable void
Quasi- keyboard image reflexes to the position of desktop for user's use, so as to according to the angle adjust automatically of electronic equipment screen
Projected position can switch the projected position of dummy keyboard between more people, improve the using flexible and convenience of dummy keyboard.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the positive structure schematic of the dummy keyboard of the adjustable projection angle of one embodiment of the invention.
Fig. 2 is the dummy keyboard of the embodiment of the present invention in the front side mounting structure schematic diagram on electronic equipment.
Fig. 3 is drop shadow effect's front schematic view of the dummy keyboard of the embodiment of the present invention.
Fig. 4 and Fig. 5 is side effect of first reflecting mirror when implementing angle adjustment in the dummy keyboard of the embodiment of the present invention
Fruit schematic diagram.
Fig. 6 is positive effect signal of second reflecting mirror when implementing angle adjustment in the dummy keyboard of the embodiment of the present invention
Figure.
Fig. 7~9 are that the angle of the first reflecting mirror in the dummy keyboard of the embodiment of the present invention adjusts schematic illustration.
Figure 10~12 are that the angle of the second reflecting mirror in the dummy keyboard of the embodiment of the present invention adjusts schematic illustration.
Figure 13 is the system architecture diagram of the equipment for adjusting dummy keyboard projection angle of one embodiment of the invention.
Figure 14 is the stream of the method for the first reflector alignment dummy keyboard projection angle of utilization of one embodiment of the invention
Cheng Tu.
Figure 15 is the schematic diagram that the deflection angle of the first reflecting mirror is calculated in the embodiment of the present invention.
Figure 16 is the schematic diagram that image output focal length is calculated in the embodiment of the present invention.
Figure 17 is the schematic diagram of correcting image in the embodiment of the present invention.
Figure 18 is the stream of the method for the second reflector alignment dummy keyboard projection angle of utilization of one embodiment of the invention
Cheng Tu.
Figure 19 is the schematic diagram that the deflection angle of the second reflecting mirror is calculated in the embodiment of the present invention.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In the following description, many details are provided to provide and fully understand to embodiments of the present invention.However,
One of ordinary skill in the art would recognize that without one or more in specific detail, or using other methods, constituent element, material
Material etc., can also practice technical solution of the present invention.In some cases, be not shown in detail or describe known features, material or
Person operates to avoid the fuzzy present invention.
Technology contents of the invention are described further with reference to the accompanying drawings and examples.
It is shown in Figure 1, the paraphrase dummy keyboard of the adjustable projection angle of one embodiment of the invention in figure
Structural schematic diagram, as shown, the dummy keyboard of the adjustable projection angle is mainly by projection device 10 and adjustable angle
It reflects microscope group to constitute, wherein reflection microscope group includes at least the first reflecting mirror 11 being set to around projection device 10 and the second reflection
Mirror 12, also, the first reflecting mirror 11 and the second reflecting mirror 12 are located in the different direction of projection device 10.In the present embodiment,
First reflecting mirror 11 is located at the surface of projection device 10, and the quantity of the second reflecting mirror 12 is two, and is symmetricly set on projection
Furthermore the left and right sides of 10 vertical centerline of equipment can also be arranged in other different directions of projection device more as needed
Reflecting mirror, to enrich the crevice projection angle of projection image.Cooperate shown in Fig. 3, projection device 10 is for exporting dummy keyboard image
101, and the image 101 of 10 projection virtual keyboard of projection device to reflection microscope group on, by adjusting reflection microscope group in some or
The deflection angle of certain several reflecting mirror adjusts the position that 10 image output 101 of projection device reflexes to perspective plane (such as desktop).
Preferably, the camera lens of projection device 10 also uses the structure of adjustable angle, the projection that automatic adjustment angle lens can be selected is set
It is standby to realize.
Cooperate shown in Fig. 1 and Fig. 2, the dummy keyboard of the embodiment of the present invention can be applicable to PAD (or laptop) etc. just
It takes on formula electronic equipment 20.As shown, the upper left position of electronic equipment 20 is arranged in the camera lens of projection device 10, at this point,
The outside of projection device 10 is equipped with frame 30,30 rectangular shaped of frame, has upper housing 31, lower case 32, left side shell
Body 33 and right shell 34, the first reflecting mirror 11 is between projection lens and upper housing 31.For purposes of illustration only, hereafter by left side
The second reflecting mirror 12 be referred to as " left side reflecting mirror ", by second reflecting mirror 12 on right side be referred to as " right side reflecting mirror ", wherein left side
Reflecting mirror is now placed between left shell 33 and projection lens vertical centerline and in the on the lower side of projection lens horizontal center line
Orientation is set, and right side reflecting mirror is between right shell 34 and projection lens vertical centerline and in projection lens horizontal center line
Partial below position, the left side reflecting mirror and the right side reflecting mirror are symmetricly set on the left and right two of the vertical centerline of projection lens
Side.
Cooperate shown in Fig. 4 and Fig. 5 again, the first reflecting mirror 11 can be turned over vertically up and down relative to the screen cover of electronic equipment 20
Turn, the image for projecting projection device 10 reflexes to the desktop in front, and adjusts image phase by vertically may be reversed
For the longitudinal separation of projection device screen, that is, vertical range of the final perspective plane position relative to electronic equipment 20 is adjusted,
Ensure that the image that projection device 10 projects can project on the desktop in front.
Shown in cooperation Fig. 6, left side reflecting mirror and right side reflecting mirror can be horizontal left relative to the screen cover of electronic equipment 20
Right overturning, the image 101 for projecting projection device 10 reflex to position at left and right sides of the front relative to electronic equipment 20,
That is, position of the final perspective plane position of adjustment on the direction for being parallel to electronic equipment 20.
Preferably, the reflection microscope group in the embodiment of the present invention generates thrust using galvanomagnetic-effect, and then realizes its angle tune
Whole function.A pair of conductive coil can generate two homopolarities close to when placing and leading to current in opposite at two winding spaces
Property magnetic field, homopolar-repulsion generate thrust.
Magnetic field strength formula: H=N × I/Le
Wherein, H is magnetic field strength, unit A/m；N is the number of turns of magnet exciting coil；I is exciting current (measured value), unit
Position A；Le is the effective magnetic circuit length of test sample, unit m.
Based on above-mentioned galvanomagnetic-effect, cooperate shown in Fig. 7~9, the rear and front end of the first reflecting mirror 11 and upper housing 31 it
Between be respectively equipped with the first coil group 13 of one group of logical reverse current, every group of first coil group 13 is made of two first coils 131,
Wherein, two first coils 131 being connected on 11 rear and front end of the first reflecting mirror lead to same direction current and the two first coils
Connect a first rotating shaft 14 between 131, the center of the first rotating shaft 14 can by another the first perpendicular central rotating shaft 141
It is rotationally connected on left shell 33 and/or right shell 34；It is fixed between two first coils 131 on coverboard 31
Distance and the distance between two first coils 13 being connected on the first reflecting mirror 11 it is equal and flat in the first reflecting mirror 11
For row when upper coverboard 31, every group of 13 position of first coil group is opposite.As shown in figure 8, when reducing front end (F) two first coils
When 131 electric current, reduce 11 front end of the first reflecting mirror magnetic field (F), so that the front end (F) of the first reflecting mirror 11 occurs partially upwards
Turn, changes the size of deflection angle by changing the size of the difference in front and back end magnetic field.Conversely, referring to Fig. 9, when reduction rear end
(B) when the electric current of two first coils 131, reduce magnetic field after the first reflecting mirror 11, so that the rear end (B) of the first reflecting mirror 11
It deflects upwards.
Similarly, by taking the reflecting mirror of left side as an example, cooperate shown in Figure 10~12, the upper and lower ends of reflecting mirror and left side in left side
The second coil group 15 of one group of logical reverse current is respectively equipped between shell 33, every group of second coil group 15 is by two the second coils
151 are constituted, wherein two the second coils 151 being connected in the reflecting mirror upper and lower ends of left side lead to same direction current and the two the
One second shaft 16 is connected between two coil 151, the center of second shaft 16 can be turned by another the second perpendicular center
Axis 161 is rotatably connected to the screen cover of electronic equipment 20 or is arranged on the rear side coverboard of 30 rear side of frame；It is fixed on a left side
The distance between two second coils 151 on side body 33 be connected to left side reflecting mirror on two the second coils 151 it
Between be equidistant, and when left side mirror parallel is in left shell 33, every group of 15 position of the second coil group is opposite.Such as Figure 11
It is shown, when reducing the electric current of upper end (T) two second coils 151, reduce left side reflecting mirror upper end magnetic field, so that left side is anti-
The upper end (T) for penetrating mirror deflects to the left.Conversely, referring to Figure 12, when reducing the electric current of lower end (D) two second coils 151,
Reduce left side reflecting mirror lower end magnetic field, so that the lower end (D) of left side reflecting mirror deflects to the left.
Referring to Figure 13, paraphrase one embodiment of the invention for adjusting setting for dummy keyboard projection angle in figure
Standby system architecture diagram, wherein dummy keyboard is the dummy keyboard of the adjustable projection angle in above-described embodiment, including is used for
The projection device 10 of the image of dummy keyboard and the reflection microscope group of adjustable angle are projected, as shown, this is used to adjust virtually
The equipment of keyboard projection angle includes:
Detection module, for obtaining the perspective plane deflection angle on projection device 10 and perspective plane between target position；
Deflection calculation module, the perspective plane deflection angle for being obtained according to detection module calculates reflection microscope group, and image is anti-
It is incident upon the mirror deflecting angle of target position；
Operation module, for adjusting the angle of reflection microscope group according to mirror deflecting angle.
Wherein, screen sensor for tilt angle 41 can be used in detection module, passes through detection electronic equipment and perspective plane (such as desktop)
Between deflection angle, such as using notebook system carry screen sensor for tilt angle come detect its open and close angle, alternatively, utilize
Acceleration transducer detects the angle between PAD (portable tablet computer) and horizontal table top, to obtain screen relative to throwing
The deflection angle in shadow face.
Operation module is the first coil group and the second coil group reflected in microscope group, passes through first coil group and the second coil
The changes of magnetic field of group, some or certain several mirror deflections in control reflection microscope group, so that the image that projection device 10 projects
Target projection face position can be successfully reflected into.
Further, portrait knowledge can also be set in the equipment for adjusting dummy keyboard projection angle of the present embodiment
Other module 44, gesture judgment module 45, input key assignments judgment module 46, projection computing module 47, cooperate portable electronic device
On camera 48 and input pickup 49 use.
Shown in Figure 14, the first reflector alignment dummy keyboard of utilization of paraphrase one embodiment of the invention is thrown in figure
The flow chart of the method for shadow angle, wherein dummy keyboard is the dummy keyboard of the adjustable projection angle in above-described embodiment, packet
The projection device of the image for projecting dummy keyboard and the reflection microscope group of adjustable angle are included, as shown in figure 14, method includes:
Step S1: the deflection angle (can be realized by detection module) between detection screen and perspective plane；
Step S2: it calculates the first mirror deflecting angle (can be by deflection calculation model realization)；
Step S3: calculating image output focal length, and adjustment of image (can be realized) by projection computing module；
Step S4: adjustment projection device and the angle (being realized by operation module) for reflecting microscope group；
Step S5: projected keyboard (is realized) by projection device.
Wherein, in step s 2, it is deflected in conjunction with Figure 15 with following calculating formula to calculate the first reflecting mirror (also upper reflector)
Angle:
If angle is 0 when screen is vertical with keyboard；
Then:
θ1=θ3-90
L3=L2×sinθ1
H1=L2×cosθ1
tan(θ1+θ2)=L3/H1
θ2=arctan (L3/H1)-θ1
In step s3, image output focal length is calculated with following calculating formula in conjunction with Figure 16:
Also, correcting image in step s3, is come with following calculating formula in conjunction with Figure 17:
Need line number=H1/H2 of interpolation；
It is the projected length of Current projection row that every row, which needs points=L1/L2 of interpolation, L2,.
Referring back to shown in Figure 18, paraphrase the second reflector alignment dummy keyboard of utilization of one embodiment of the invention in figure
The flow chart of the method for projection angle, wherein dummy keyboard is the dummy keyboard of the adjustable projection angle in above-described embodiment,
The reflection microscope group of projection device and adjustable angle including the image for projecting dummy keyboard, as shown in figure 18, method packet
It includes:
Step S11: gesture switching action (can be realized by gesture judgment module) is detected
Step S12: camera detects portrait position (can be realized by Identification of Images module)；
Step S13: it calculates left and right mirror deflecting angle (can be by deflection calculation model realization)；
Step S14: calculating image output focal length, and adjustment of image (can be realized) by projection computing module；
Step S15: adjustment projection device and the angle (being realized by operation module) for reflecting microscope group；
Step S16: projected keyboard (is realized) by projection device.
Wherein, in step s 11, it the realization of gestures detection and identification function: is provided using opencv
The point of convexityDefects concave point detection function detection image recess, then utilizes, and then (starts according in depression points
Point, end point, far point) coordinate, using the cosine law calculate two fingers between angle, must be acute angle, according to acute angle
Number differentiate gesture.
The sequence of operations such as the reading frame, smooth, frame difference or background subtraction, binaryzation, expansion, the corrosion that are provided using opencv
Movement is identified, it is possible to determine that going out the direction of motion is from left to right or from right to left.It, can be in addition the judgement to gesture
It defines and for example detects that from left to right movement indicates for dummy keyboard to be switched to the right two fingers.
In step s 12, the realization of portrait detection function: it can accomplish Face datection also with opencv.In conjunction with figure
Shown in 19, left and right reflective mirror deflection angle is calculated, it is assumed that gesture before is to switch keyboard to the right, then: θ=arccos (L1/
L2),
It is identical with algorithm before that image output focal length, adjustment of image are calculated in step S14.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (10)
1. a kind of dummy keyboard of adjustable projection angle, it is characterised in that: the dummy keyboard includes projection device and adjustable
The reflection microscope group of whole angle, on the image to the reflection microscope group of the projection dummy keyboard, by adjusting described
The deflection angle of reflection microscope group adjusts the position that the image reflexes to perspective plane.
2. the dummy keyboard of adjustable projection angle as described in claim 1, it is characterised in that: the projection device and described
Reflecting mirror is mounted on same electronic equipment.
3. the dummy keyboard of adjustable projection angle as claimed in claim 2, it is characterised in that: the reflection microscope group includes setting
The first reflecting mirror and the second reflecting mirror around the projection device.
4. the dummy keyboard of adjustable projection angle as claimed in claim 3, it is characterised in that: first reflecting mirror can turn
Dynamicly above the camera lens of the projection device, for adjusting the perspective plane in the first party perpendicular to the electronic equipment
Upward position.
5. the dummy keyboard of adjustable projection angle as claimed in claim 4, it is characterised in that: the projection device is equipped with
Upper coverboard, the upper coverboard are located at the top of first reflecting mirror, and the rear and front end of first reflecting mirror and it is described on
Be respectively equipped with the first coil of one group of logical reverse current between shell, the first coil on first reflecting mirror collude to
Electric current.
6. the dummy keyboard of adjustable projection angle as claimed in claim 3, it is characterised in that: second reflecting mirror can turn
It is located at two side of camera lens of the projection device dynamicly, is being parallel to the second of the electronic equipment for adjusting the perspective plane
Position on direction.
7. the dummy keyboard of adjustable projection angle as claimed in claim 6, it is characterised in that: the projection device is equipped with
Side coverboard, the side coverboard is located at the side far from the camera lens of second reflecting mirror, and second reflecting mirror is upper
The second coil of one group of logical reverse current is respectively equipped between lower both ends and the side body, it is described on second reflecting mirror
Second coil leads to same direction current.
8. such as the dummy keyboard of adjustable projection angle according to any one of claims 1 to 7, it is characterised in that: the throwing
The angle lens of shadow equipment are adjustable.
9. a kind of equipment for adjusting dummy keyboard projection angle, which is characterized in that the dummy keyboard includes for projecting
The projection device of the image of dummy keyboard and the reflection microscope group of adjustable angle, the equipment include:
Detection module, for obtaining the perspective plane deflection angle on the projection device and perspective plane between target position；
The image is reflexed to institute for calculating the reflection microscope group according to the perspective plane deflection angle by deflection calculation module
State the mirror deflecting angle of target position；
Operation module, for adjusting the angle of reflection microscope group according to the mirror deflecting angle.
10. a kind of method for adjusting dummy keyboard projection angle, which is characterized in that the dummy keyboard includes for projecting
The projection device of the image of dummy keyboard and the reflection microscope group of adjustable angle, which comprises
Obtain the perspective plane deflection angle on the projection device and perspective plane between target position；
The reflection that the image is reflexed to the target position by the reflection microscope group is calculated according to the perspective plane deflection angle
Mirror deflection angle；
The angle of reflection microscope group is adjusted according to the mirror deflecting angle.
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| CN201910504617.XA CN110209307A (en) | 2019-06-12 | 2019-06-12 | Dummy keyboard and device and method for adjusting dummy keyboard projection angle |
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| CN201910504617.XA CN110209307A (en) | 2019-06-12 | 2019-06-12 | Dummy keyboard and device and method for adjusting dummy keyboard projection angle |
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| CN112716117A (en) * | 2020-12-28 | 2021-04-30 | 维沃移动通信有限公司 | Intelligent bracelet and control method thereof |
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| CN103901612A (en) * | 2014-04-24 | 2014-07-02 | 安阳工学院 | Two-dimensional light beam scanning device driven by magnetic field force |
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Application publication date: 20190906 |