CN208689595U - A kind of wand - Google Patents
A kind of wand Download PDFInfo
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- CN208689595U CN208689595U CN201821360500.6U CN201821360500U CN208689595U CN 208689595 U CN208689595 U CN 208689595U CN 201821360500 U CN201821360500 U CN 201821360500U CN 208689595 U CN208689595 U CN 208689595U
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- wand
- camera
- recess portion
- scanning
- dielectric surface
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Abstract
The embodiments of the present invention provides a kind of wand, including the camera for acquisition scans dielectric surface image, the primary optical axis of the camera and the central axes of the wand are not parallel, the technical solution of the utility model can correct trapezoidal distortion, to improve the discrimination of text, better experience is brought for user.
Description
Technical field
The embodiments of the present invention is related to smart machine field, more specifically, the embodiments of the present invention relates to
And a kind of wand.
Background technique
This part intends to provides background or context for the embodiments of the present invention stated in claims.This
The description at place recognizes it is the prior art not because not being included in this section.
Wand is to realize the reading of papery text or image by image recognition technology, brings for work and life huge
Convenience.Electronic information can be translated or be converted to the information of reading by wand.Some wands are had already appeared at present,
Scanning window is offered in the lower end of the shell of wand, the length direction of shell is longer, and the corresponding other side is shorter, makes to scan
It is in non-perpendicular angle between plane and the length direction of shell where window.The imaging axis parallel of camera module is in scanning
The length direction of shell.This non-perpendicular image that camera can be brought to scan generates trapezoidal distortion, even meeting when serious
Image black surround is introduced, optical character identification (optical character recognition, abbreviation OCR) when scanning is influenced
Success rate.Although can be corrected based on software to it, limitation.The freedom degree that holds a pen of user also can be therefore very
It is restricted in big degree, affect experience.
Utility model content
In order to allow posture of the wand close to people by pen, the central axes of the wand in use and sweep object are for example
Paper is in non-perpendicular angle.
Since the imaging axis parallel of the camera module in prior art wand is in the length side of wand shell
To.Therefore the image that wand scans can generate trapezoidal distortion, even can introduce image black surround when serious, influence to scan successfully
Rate.
Thus, it is also very desirable to a kind of improved wand, it is trapezoidal when reducing the acquisition of existing scanning translation pen scan image
The bring that distorts influences, and promotes the success rate of scanning translation.
In the present context, the embodiments of the present invention is intended to provide a kind of wand, comprising: is situated between in acquisition scans
The camera of matter surface image, the primary optical axis of the camera and the central axes of the wand are not parallel.
In one embodiment of the utility model, which includes: sliding triggering block, has the first recess portion and is located at
The contact end of first recess portion two sides, in the camera collection image, the contact end and the scanning medium
Surface be in contact and first recess portion and the scanning dielectric surface between form scanning window.
In another embodiment of the utility model, which includes: circuit board, is assemblied in the interior of the wand
Portion, the circuit board have the second recess portion and positioned at the protrusions of second recess portion two sides, second recess portion and described the
The optical path of the camera is formed between one recess portion.
In another embodiment of the utility model, which includes: light compensating apparatus, is assemblied in the circuit board
The protrusion.
In the further embodiment of the utility model, which includes: translucent cover, surrounds the sliding triggering block, institute
The light of the light compensating apparatus transmitting can be converged to form cursor in the scanning dielectric surface by stating translucent cover.
In the further embodiment of the utility model, which includes: translucent cover, surrounds the scanning window, institute
Translucent cover is stated for converging the light of the light compensating apparatus transmitting to form cursor in the scanning dielectric surface.
In the further embodiment of the utility model, the primary optical axis of the camera and the axis of the wand are linear
At 1 degree to 10 degree of angle.
In the further embodiment of the utility model, the nib part of the wand is U-shaped, is adopted in the camera
When collecting image, the nib part is in contact with the scanning dielectric surface.
In the further embodiment of the utility model, the camera be macro head, the camera with it is described
The vertical range of the end face of nib part is 10 millimeters to 50 millimeters.
In the further embodiment of the utility model, which includes: to be set on the shell of the wand
Display screen, loudspeaker go out acoustic aperture, USB interface and key.
According to the wand of the utility model embodiment, trapezoidal distortion can be corrected, so that the discrimination of text is improved,
Posture is taken to the habit of wand without changing user, brings better experience for user.
Detailed description of the invention
The following detailed description is read with reference to the accompanying drawings, the utility model illustrative embodiments above-mentioned and other
Objects, features and advantages will become prone to understand.In the accompanying drawings, it is practical new that this is shown by way of example rather than limitation
Several embodiments of type, in which:
Fig. 1 is schematically shown to be cutd open according to the side in use of the wand of the utility model embodiment
View；
Fig. 2 schematically shows according to the nib part of the wand of the utility model embodiment in use
Side, sectional enlarged drawing；
Fig. 3 is schematically shown according to the nib part of the wand of the utility model embodiment in use
Side index path；
Fig. 4 schematically shows according to the nib part of the wand of the utility model embodiment in use
Front overlook index path；
Fig. 5 is schematically shown according to the nib part of the wand of the utility model embodiment in use
Front section view；
Fig. 6 schematically shows the front view of the wand according to the utility model embodiment.
In the accompanying drawings, identical or corresponding label indicates identical or corresponding part.
Description of symbols:
100--- scans dielectric surface；200--- wand；
The central axes of OA--- wand；The primary optical axis of CD--- camera；
The first angle of a---；The second angle of b---；
210--- camera；220--- shell；
230--- sliding triggering block；The first recess portion of 231---；
232--- contacts end；233--- scanning window；
240--- circuit board；The second recess portion of 241---；
The protrusion 242---；250--- light compensating apparatus；
260--- translucent cover；270--- battery；
280--- loudspeaker；
200A--- nib part；The end face of 200B--- nib part；
291--- display screen；292--- loudspeaker go out acoustic aperture；
293---USB interface；294--- key；
300--- cursor.
Specific embodiment
The principles of the present invention and spirit are described below with reference to several illustrative embodiments.It should be appreciated that giving
These embodiments are out just for the sake of making those skilled in the art can better understand that realize the utility model in turn, and simultaneously
It is non-to limit the scope of the utility model in any way.On the contrary, thesing embodiments are provided so that the disclosure is more thorough
With it is complete, and the scope of the present disclosure can be completely communicated to those skilled in the art.
Herein, any number of elements in attached drawing is used to example rather than limitation and any name are only used for
It distinguishes, without any restrictions meaning.
Below with reference to several representative embodiments of the utility model, the principles of the present invention and essence are illustrated in detail
Mind.
Utility model is summarized
The inventors discovered that in the prior art in order to allow posture of the wand close to people by pen, camera module
Axis parallel is imaged in the length direction of wand shell, therefore, the image that wand scans can generate trapezoidal distortion, sternly
Image black surround even can be introduced when weight, influences text identification rate.
In view of this, the present invention provides a kind of wands, for the inclined design of wand pen body, using camera shooting
The head primary optical axis and not parallel design in pen body central axes makes between camera primary optical axis and pen body central axes shape in an angle,
Angle (acute angle) between dielectric surface is for example scanned to increase camera primary optical axis and sweep object, to the text scanned
Trapezoidal distortion be corrected, and then improve text discrimination.The angle more levels off to right angle, and trapezoidal distortion is corrected effect
Fruit is better, and text identification rate is higher.
After describing the basic principle of the utility model, lower mask body introduces the various non-limiting of the utility model
Embodiment.
Exemplary structure
Fig. 1 show the side sectional view of the wand 200 of the present embodiment in use, and Fig. 2 show this implementation
The side, sectional enlarged drawing of the nib part 200A of the wand 200 of example in use.
Fig. 1 and Fig. 2 are please referred to, the wand 200 of the present embodiment includes camera 210, for the use in wand 200
The image of acquisition scans dielectric surface 100 in the process, wherein OA is the central axes of wand 200, and CD is the master of camera 210
Optical axis, OA is not parallel with CD, to form the first angle a.Wand 200 in use can with scanning dielectric surface 100 be in
Existing non-perpendicular state, that is, form the second angle b, that is, gradient when holding a pen.Wherein, in the use process of wand 200, pen
Head divides the end face 200B of 200A to be in contact with scanning dielectric surface 100, and camera 210 is by the scanning window on the 200B of end face
The image of acquisition scans dielectric surface 100.
Fig. 3 show the side index path of nib part 200A in use, and Fig. 4 show nib part 200A and exists
Index path is overlooked in front in use process.Fig. 3 and Fig. 4 are please referred to, SN is the width of scanning window, and PN is wand 200
The central axes direction OA projects the lateral length that scanning dielectric surface 100 generates, and MN is from the direction primary optical axis CD of camera 210
Project the lateral length that scanning dielectric surface 100 generates.KL is the length of scanning window.KLKH is the axis of wand 200
The direction line OA projects the view area that scanning dielectric surface 100 generates.KLQF is that the direction primary optical axis CD of camera 210 projects
The view area generated to scanning dielectric surface 100.As can be seen that the region of KLQF is obviously than the region trapezoidal distortion of KLKH
It is small.
That is, the wand 200 of the present embodiment can correct the trapezoidal distortion of image, and then promote the identification of OCR
Rate.Due to no longer being limited by trapezoidal distortion, the freedom degree that holds a pen of user can also increase, the wand 200 of the present embodiment
Can making the gradient to hold a pen, (the second angle b) reaches 45 degree (°)~135 °, and the gradient of the wand of the prior art is only
65 °~75 ° or so.
Preferably, the value range of the first angle a can make the trapezoidal distortion of image at 1 °~10 ° (including endpoint value)
Most preferably improved.
Further, the correction of the structure design cooperation software algorithm of the present embodiment wand 200, can be by trapezoidal distortion
Bring influence is preferably minimized.
Fig. 5 show the front section view of nib part 200A, provides the utility model below with reference to Fig. 1, Fig. 2 and Fig. 5
Wand 200 more specific example.
In one embodiment, as shown in Figure 1, wand 200 further includes shell 220 and circuit board 240.Wherein, shell
Body 220 forms the moulding of wand 200, central axes OA, that is, shell 220 central axes of wand 200.Circuit board 240 is assemblied in
Inside shell 220, is protected by shell 220, arithmetic processing circuit is installed on circuit board 240, for the image scanned
It is handled.Shell 220 has the supporting member being arranged on 220 inner wall of shell, can be used to install camera 210, pass through
Gradient of the supporting member with respect to shell 220 is adjusted, the central axes of the primary optical axis that can make camera 210 and wand 200 are not
In parallel.
Further, flexible circuit board (Flexible Printed Circuit, abbreviation can be used in camera 210
FPC) connector is connected with circuit board 240, and the calculation process electricity for circuit board 240 being sent to after image progress preliminary treatment
Road.
In one embodiment, as shown in figure 5, wand 200 can also include sliding triggering block 230, it is arranged in nib
Part 200A, the i.e. lower section of shell 220, can be to 220 direction of shell after 230 contact scanning dielectric surface 100 of sliding triggering block
Retraction starts to acquire image to trigger camera 210；After sliding triggering block 230 leaves scanning dielectric surface 100, camera 210
Stop acquisition image.
Preferably, sliding triggering block 230 uses U-shaped design.Specifically, sliding triggering block 230 has the first recess portion 231 and position
In two contact ends 232 of 231 two sides of the first recess portion, when camera 210 acquires image, contact end 232 and scanning are situated between
Matter surface 100 is in contact, also, forms scanning window 233 between the first recess portion 231 and scanning dielectric surface 100.Such as Fig. 5 and
Shown in Fig. 6, the length KL and width S N of scanning window 233 can be arranged according to actual needs, for example, length KL can be set being
11.16 millimeters (mm), width S N is 7.65mm.
In one embodiment, as described in Figure 5, circuit board 240 can be set close to the part of sliding triggering block 230 to be U-shaped
Meter, specifically, circuit board 240 have the second recess portion 241 and two protrusions 242 positioned at 241 two sides of the second recess portion, camera
210 are built in inside wand 200, and are in the centre of U-shaped design, i.e. camera 210 is excellent in the installation site of wand 200
It selects in being arranged near the second recess portion 241, is taken the photograph with being formed between the second recess portion 241 and the first recess portion 231 of sliding triggering block 230
As first 210 optical path.
In one embodiment, as shown in figure 5, wand 200 can also include light compensating apparatus 250, it is assemblied in circuit
The protrusion 242 of plate 240, light compensating apparatus 250 can be two LED light, be separately mounted on two protrusions 242.Light compensating apparatus 250
Light filling can be carried out to scanning dielectric surface 100 in scanning, to improve scan image exposure.
Preferably, camera 210 can be macro head, exist with the vertical range of the end face 200B of nib part 200A
10mm~50mm, such as can be set to 24mm.
Fig. 6 show the front view of wand 200, in one embodiment, as shown in Figure 5 and Figure 6, wand
200 can also include translucent cover 260, surround sliding triggering block 230, can be used for converging the light of the transmitting of light compensating apparatus 250 to sweep
It retouches dielectric surface 100 and forms cursor 300, such as the cursor 200 of triangle.When wand 200 is for mending when scanning multline text
The light that electro-optical device 250 emits passes through U-shaped nib, then is converged by translucent cover 260, is situated between in the positive scanning of wand 200
Matter surface 100 forms cursor 300, so as to effectively identify certain row text that needs scan.
In one embodiment, translucent cover 260 can only surround scanning window 233, such as be arranged in sliding triggering block 230
Two contact ends 232 between.
In one embodiment, as shown in Figure 5 and Figure 6, wand 200 further includes the display being set on shell 220
The battery 270 and loudspeaker 280 that screen 291, loudspeaker go out acoustic aperture 292, USB interface 293 and key 294 and are set in shell 220
Deng.The front upper in shell 220 can be set in display screen 291, is displayed for the information scanned, can be also used for showing
Show the processing result to scanning information, such as the information after translating.Loudspeaker 280 are arranged in shell 220, and loudspeaker go out acoustic aperture 292 can
The front of shell 220 is arranged in, voice broadcast is realized, such as carry out the word that needs are translated from Text To Speech (Text
To Speech, abbreviation TTS) voice broadcast.USB interface 293 can be set at top, when can be for charging and transmitting data
It uses.Key 294 can be set in the front of shell 220, carry out that word, sounding etc. is selected to operate for user.Battery 270 is mounted on shell
In body 220, power to the whole system to wand 200.
Wand 200 provided by present embodiment can correct trapezoidal distortion, so that the discrimination of text is improved, and nothing
User need to be changed, a posture is taken to the habit of wand, bring better experience for user.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected, can also be communication；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign includes fisrt feature right above second feature and oblique upper under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Although being answered in addition, describing the spirit and principle of the utility model by reference to several specific embodiments
The understanding, it is not limited to the specific embodiments disclosed for the utility model, does not also mean that these sides to the division of various aspects
Feature in face cannot combine it is benefited to carry out, it is this divide merely to statement convenience.The utility model is intended to cover institute
Included various modifications and equivalent arrangements in attached spirit and scope of the claims.
Claims (10)
1. a kind of wand, including the camera for acquisition scans dielectric surface image, which is characterized in that the camera
The central axes of primary optical axis and the wand are not parallel.
2. wand according to claim 1, which is characterized in that the wand further include:
Sliding triggering block has the first recess portion and positioned at the contact end of first recess portion two sides, acquires in the camera
When image, the contact end is in contact with the scanning dielectric surface and first recess portion and the scanning media table
Scanning window is formed between face.
3. wand according to claim 2, which is characterized in that the wand further include:
Circuit board, is assemblied in the inside of the wand, and the circuit board has the second recess portion and is located at second recess portion
The protrusion of two sides forms the optical path of the camera between second recess portion and first recess portion.
4. wand according to claim 3, which is characterized in that the wand further include:
Light compensating apparatus is assemblied in the protrusion of the circuit board.
5. wand according to claim 4, which is characterized in that the wand further include:
Translucent cover, surrounds the sliding triggering block, and the translucent cover can converge the light of the light compensating apparatus transmitting to sweep described
It retouches dielectric surface and forms cursor.
6. wand according to claim 4, which is characterized in that the wand further include:
Translucent cover, surrounds the scanning window, and the translucent cover is used to converge the light of the light compensating apparatus transmitting described
It scans dielectric surface and forms cursor.
7. wand according to any one of claims 1 to 6, which is characterized in that the primary optical axis of the camera with it is described
The central axes of wand form 1 degree to 10 degree of angle.
8. wand according to any one of claims 1 to 6, which is characterized in that the nib part of the wand is U
Shape, in the camera collection image, the nib part is in contact with the scanning dielectric surface.
9. wand according to claim 8, which is characterized in that the camera is macro head, the camera
Vertical range with the end face of the nib part is 10 millimeters to 50 millimeters.
10. wand according to any one of claims 1 to 6, which is characterized in that the wand further includes being set to institute
State the display screen on the shell of wand, loudspeaker go out acoustic aperture, USB interface and key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360500.6U CN208689595U (en) | 2018-08-22 | 2018-08-22 | A kind of wand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821360500.6U CN208689595U (en) | 2018-08-22 | 2018-08-22 | A kind of wand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208689595U true CN208689595U (en) | 2019-04-02 |
Family
ID=65886585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821360500.6U Active CN208689595U (en) | 2018-08-22 | 2018-08-22 | A kind of wand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208689595U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710214A (en) * | 2020-06-16 | 2020-09-25 | 广东小天才科技有限公司 | Automatic cursor correction method and intelligent device |
| CN112347227A (en) * | 2020-11-10 | 2021-02-09 | 网易有道信息技术（北京）有限公司 | Method and portable electronic device for text query |
-
2018
- 2018-08-22 CN CN201821360500.6U patent/CN208689595U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111710214A (en) * | 2020-06-16 | 2020-09-25 | 广东小天才科技有限公司 | Automatic cursor correction method and intelligent device |
| CN112347227A (en) * | 2020-11-10 | 2021-02-09 | 网易有道信息技术（北京）有限公司 | Method and portable electronic device for text query |
| CN112347228A (en) * | 2020-11-10 | 2021-02-09 | 网易有道信息技术（北京）有限公司 | Method and portable electronic device for text query |
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