CN110378162A - A kind of image recognition device - Google Patents
A kind of image recognition device Download PDFInfo
- Publication number
- CN110378162A CN110378162A CN201910683695.0A CN201910683695A CN110378162A CN 110378162 A CN110378162 A CN 110378162A CN 201910683695 A CN201910683695 A CN 201910683695A CN 110378162 A CN110378162 A CN 110378162A
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- China
- Prior art keywords
- image recognition
- light source
- source assembly
- light
- optical axis
- Prior art date
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- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000003760 hair shine Effects 0.000 claims abstract description 5
- 230000006698 induction Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
- G06K7/10732—Light sources
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms
Abstract
The present invention relates to a kind of image recognition devices, distinguish element including bracket, the image of installation on the bracket；It further include installation light source assembly on the bracket and the reflection subassembly that installation is oppositely arranged on the bracket and with the light source assembly；Described image distinguishes element and is upwardly formed image recognition region in its recognition side；The reflection subassembly includes reflecting surface；The optical axis of the light source assembly intersects with the reflecting surface, and forms the second setting angle；The light source assembly shines towards the reflecting surface, and forms reflected light by the reflective surface；The optical axis of the reflected light extends towards described image recognition region, and close to the optical axis setting of described image recognition element.The image recognition device has the advantages that structure is simple, production cost is low, recognition accuracy is high.
Description
Technical field
The present invention relates to images to distinguish field, more specifically to a kind of image recognition device.
Background technique
Light source assembly 30, i.e. aiming unit are projeced into body surface as the critical elements of image reading engine
Pattern, for guiding user to aim at, convenient for image to be distinguished to be placed in the field range of image reading engine；Existing image
Recognizing apparatus: one, recognition element 20 and the bracket 10 placed side by side of light source assembly 30, due to structure constraint, aiming pattern center
It is larger with recognition 20 centre distance of element, 6mm is taken around, causes recognition element central and aiming center inconsistent, influences to know
The accuracy of reading, and the deviation for distinguishing distance more recent photo sound recognition will be bigger；As shown in Figure 1.Secondly, recognition element 20 with
The bracket 10 placed side by side of light source assembly 30 respectively puts a light source assembly 30 on the both sides of recognition element 20, make to distinguish element central
Between two light source assembly centers, as shown in Figure 2；This scheme needs two sets of light source assembly, and its light source assembly aims at figure
The center of case and the recognition centre distance of recognition element are larger, cause recognition center and aiming center inconsistent, influence recognition
Accuracy, and its structure is complicated, increased costs, and is not directly to be aligned, and is easy to mislead user.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of improved image recognition device.
The technical solution adopted by the present invention to solve the technical problems is: construct a kind of image recognition device, including bracket,
The image of installation on the bracket distinguishes element；Further include installation light source assembly on the bracket and is mounted on institute
The reflection subassembly stated on bracket and be oppositely arranged with the light source assembly；
Described image distinguishes element and is upwardly formed image recognition region in its recognition side；
The reflection subassembly includes reflecting surface；The optical axis of the light source assembly intersects with the reflecting surface, and forms second
Set angle；
The light source assembly shines towards the reflecting surface, and forms reflected light by the reflective surface；The reflected light
Optical axis towards described image recognition region extend, and close to described image recognition element optical axis setting.
Preferably, the optical axis of the reflected light is distinguished the optical axis interval of element with described image and is arranged in parallel.
Preferably, the optical axis of the reflected light and described image recognition element optical axis between be divided into 2.8mm ±
0.2。
Preferably, the light source assembly includes light-emitting surface；The reflecting surface and the light-emitting surface form the first setting angle.
Preferably, it described first sets angle and/or described second sets angle as 45 degree of angles.
Preferably, the reflection subassembly includes supporting element and the reflecting mirror that is mounted on the supporting element；
The reflecting surface is arranged on the reflecting mirror.
Preferably, the supporting element includes the support portion installed on the bracket and is inclined at the support
For the mounting portion of reflecting mirror installation in portion；Third is formed between the mounting portion and the support portion sets angle.
Preferably, described image recognition element includes lens barrel ontology, the induction chip being mounted in lens barrel ontology, is mounted on
For positioned at the optical lens in the induction direction of the induction chip in the lens barrel ontology；
The one end of the mounting portion far from the support portion connect with the side wall of the lens barrel ontology and with the lens barrel sheet
Body forms the 4th setting angle.
Preferably, the third sets angle as 135 degree of angles；
And/or the described 4th set angle as 45 degree of angles.
Preferably, the bracket includes bottom wall and side wall；
Described image recognition element is mounted on the bottom wall；
The light source assembly is mounted on the side wall；
The light source assembly include be mounted on cylinder hollow on the side wall, the light emitting source being mounted in the cylinder,
And it is mounted on the light focusing unit in the cylinder and being located on the light direction of the light source assembly.
Implement image recognition device of the invention, has the advantages that the image recognition device passes through the light source
The reflecting surface of the optical axis of component and the reflection subassembly being arranged in contrast is crossed to form the second setting angle and by the light source group
Part shines towards the reflecting surface, and forms reflected light optical axis by the reflective surface and know graph region extension and close image towards hi-vision
Distinguish element optical axis setting reflected light, and then can make aiming center closer to image recognition region recognition center,
So as to improve the accuracy of recognition.The image recognition device is with structure is simple, production cost is low, recognition accuracy is high
Advantage.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the structural schematic diagram of existing image recognition device first embodiment；
Fig. 2 is the structural schematic diagram of existing image recognition device second embodiment；
Fig. 3 is the structural schematic diagram of some embodiments of the invention image recognition device；
Fig. 4 is the schematic diagram of image recognition device reflective condition shown in Fig. 3.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
Fig. 3 and Fig. 4 shows some preferred embodiments of image recognition device of the present invention.The image recognition device can be used for
The recognition of bar code, two dimensional code, the image recognition device have the advantages that structure is simple, production cost is low, recognition accuracy is high.
As shown in Figures 3 and 4, the image recognition device include bracket 10, it is image recognition element 20, light source assembly 30, anti-
Penetrate component 40；Image recognition element 20, light source assembly 30 and reflection subassembly 40 are installed on the bracket 10, the image
Recognition element 20 can distinguish image, be decoded, and can be upwardly formed image recognition region 50 in its recognition side.The light source
Component 30 can be used for emitting beam to be illuminated for image recognition element 20, distinguishes 20 capture of element convenient for image.The reflection subassembly
40 light that can issue the light source assembly 30 reflex to image recognition region 50, in order to illuminate to image recognition element 20.
In some other embodiment, which may also include shell (not shown)；The bracket 10 is mountable in the shell
In (not shown), image recognition element 20, light source assembly 30 and reflection subassembly 40 can be contained in the shell (not shown)
In.
Further, in some embodiments, which may include bottom wall 11 and side wall 12；The bottom wall 11 can be with this
Side wall 12 forms integral structure, which can be used for installing for image recognition element 20.The side wall 12 can be with the bottom wall 11
It is vertically arranged, can be used for installing for the light source assembly 30.
Further, in some embodiments, image recognition element 20 can be arranged along the direction perpendicular to the bottom wall 11
It may include lens barrel ontology 21, induction chip 23, optical lens 22 on the bottom wall 11.The lens barrel ontology 21 can be hollow knot
Structure can be arranged on the bottom wall 11 along the direction perpendicular to the bottom wall 11, can be used for for the induction chip 23 and the optics
Camera lens 22 is installed.The optical lens is mounted on the top of the lens barrel ontology 21, and is located at the induction direction of the induction chip 23,
It can be used for being scanned image.The induction chip 23 is mountable in the lens barrel ontology 21, and can be sticked in the bracket 10
It on bottom wall 11, is oppositely arranged with the optical lens 22, can be used for incuding, identify, interpreting in the formation of the optical lens 22
Image.In some embodiments, it is that image is known that the optical axis AD of image recognition element 20, which is image recognition 50 crosspoint of region,
The image of reading field distinguishes center, i.e. the optical axis of image recognition element 20 is the central axis that the image distinguishes region 50.
Further, in some embodiments, which can be mounted on this along the direction perpendicular to the side wall 12
On side wall 12, and its light direction is arranged perpendicular to the side wall 12.The light source assembly 30 may include cylinder 31, light emitting source 32 and
Light focusing unit 33；The cylinder 31 can be used for installing for the light emitting source 32 and the light focusing unit 33.The light emitting source 32 can be logical
It shines under electricity condition, to be illuminated to image recognition element 30.The light focusing unit 33 can converge the light of the light emitting source 32 sending.
The cylinder 31 can be hollow structure, can be mounted on the side wall 12 along the direction perpendicular to the side wall 12, can
For being installed for the light emitting source 32 and the light focusing unit 33.The cylinder 31 may include fixed part and mounting portion；This is fixed
Portion is mountable on the side wall 12, can be sticked or be welded on the side wall 12, and internal diameter and outer diameter are all larger than the installation
The internal diameter and outer diameter in portion, the mounting portion may be provided on the fixed part, can be used for installing for the light focusing unit 33.
The light emitting source 32 is mountable in the cylinder 31, specifically, can be located in the fixed part, can be any wave
Long light source generally can be used and set up light source convenient for eye-observation.The light emitting source 32 can be laser emitter or LED
Lamp bead can be mounted on the side wall 12 by way of patch.
The light focusing unit 33 is mountable in the cylinder 31, and it can be located on the light direction of the light emitting source 32, specifically
Ground, it is mountable in the mounting portion, it can be convex lens, transparent optical material can be used and be made, have centainly
Optical characteristics, the light for enabling to the light emitting source 32 to issue pass through and focus or be imaged the cursor for forming certain feature shape,
So that the light that the light emitting source 32 issues is more bright.It is to be appreciated that in some other embodiment, the optically focused list
Member 33 can be not limited to convex lens, can be lens group.In some embodiments, it is set on the light direction of the light focusing unit 30
There is light-emitting surface 331, which can be located at 31 outlet end of cylinder, and be arranged in parallel with the end face of the cylinder 31.It should go out
Smooth surface 331 goes out light for the light focusing unit 30.
Further, in some embodiments, which may include supporting element 41 and reflecting mirror 42；The branch
Support member 41 is arranged on the bracket 10.The reflecting mirror 42 is mountable on the supporting element 41, and it can be with 30 phase of light source assembly
It is obliquely installed to setting, and with image recognition element 20, with the light for reflecting the light source assembly 30 sending, and is reflected
Region 50 is distinguished to image.
The supporting element 41 can be mounted on the bottom wall 11 along the direction perpendicular to the bottom wall 11, can be welded with the bottom wall 11
It connects, it will of course be understood that ground, can also be detachably connected with the bottom wall 11 by the way that bindiny mechanism is arranged.The supporting element 41 can
Including support portion 411 and mounting portion 412；The support portion 411 is mountable on the bracket 10, specifically, can be perpendicular to this
Bottom wall 11 is arranged on the bottom wall 11, and it can be arranged in parallel with the first draft face 331.412 tiltable of mounting portion is arranged at this
On support portion 411, and third is formed between the support portion 411 and sets angle β3；It can be used for installing for the reflecting mirror 42, the
Three setting angle β3It can be 135 degree of angles, it is possible to understand that ground can be not limited to 135 degree of angles in some other embodiment.
The mounting portion 412 can be connect far from the support portion one end with the side wall of the lens barrel ontology 21, and form the with the lens barrel ontology 21
Four setting angle β4, the 4th setting angle β4It can be 45 degree of angles, it is possible to understand that ground can not in some other embodiment
It is limited to 45 degree of angles.Angle β is set by the way that the mounting portion 412 and the support portion 411 are formed third3, with 21 shape of lens barrel ontology
At the 4th setting angle β4, the light-emitting surface of the reflecting mirror and the light source assembly 30 can be made to form angle, consequently facilitating should
The light that light source assembly 30 issues reflexes to image recognition region 50.By the way that bottom wall 11 and the side wall 12 are vertically arranged, so that
The optical axis CB of the light source assembly 30 is vertically arranged with the optical axis AD of the image recognition element 20, then by by reflecting mirror 42 and lens barrel
Ontology 21 forms 45 degree of angles, can make so that the optical axis CB of the light emitting source 32 is right against 42 center of reflecting mirror.
The reflection wavelength of the reflecting mirror 42 and the wavelength of the light emitting source 32 are mutually indepedent, only need that the light emitting source 32 can be sent out
Wavelength out is reflected.Mountable one be oppositely arranged in the mounting portion 412 and the light source assembly 30 of the reflecting mirror 40
Side can form reflecting surface 421 on the reflecting mirror 42, which can form the first setting angle β with the light-emitting surface1；First
Set angle β1It can be 45 degree of angles, it is possible to understand that ground, in some other embodiment, first setting angle β1It can be unlimited
In 45 degree of angles.
The optical axis CB of the light source assembly 30 can intersect with the reflecting surface 421, and it can be intersected in the reflecting surface 421
The heart, and the second setting angle β is formed with the reflecting surface 4212；Second setting angle β2It can be the incidence angle of the light source assembly 30
Degree, can be 45 degree of angles, it is possible to understand that ground can also be not limited to 45 degree of angles, by passing through in some other embodiment
Form second setting angle β2The light source assembly can be made to shine towards the reflecting surface 421 and by 421 reflection of reflecting surface
At reflected light optical axis towards the image recognition region 50 extend, and close to the image recognition element 20 optical axis setting, thus
Central illumination can be distinguished in order to the image, improve the accuracy of recognition.45 degree are set by incident angle, can be made anti-
The optical axis BD formed after penetrating is parallel with the image recognition optical axis AD of element and interval is arranged.It is to be appreciated that in some implementations
In example, the interval between the optical axis BD of the reflected light and the optical axis AD of image recognition element 20 can be 2.8mm, and tolerance can
Think 0.2, (as shown in Figures 1 and 2) compared to existing, the optical axis BD of the reflected light distinguishes element 20 closer to the image
Optical axis AD, to be conducive to accurately distinguish.
It should be understood that above embodiments only express the preferred embodiment of the present invention, description is more specific and detailed
Carefully, but it cannot be understood as limitations on the scope of the patent of the present invention；It should be pointed out that for the common skill of this field
For art personnel, without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, can also be done
Several modifications and improvements out, these are all within the scope of protection of the present invention；Therefore, all to be done with scope of the invention as claimed
Equivalents and modification, should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a kind of image recognition device, including bracket (10), the image being mounted on the bracket (10) recognition element (20)；Its
Be characterized in that, further include the light source assembly (30) being mounted on the bracket (10) and be mounted on the bracket (10) and
The reflection subassembly (40) being oppositely arranged with the light source assembly (30)；
Described image distinguishes element (20) and is upwardly formed image recognition region (50) in its recognition side；
The reflection subassembly (40) includes reflecting surface (421)；The optical axis of the light source assembly (30) and the reflecting surface (421) phase
It hands over, and forms the second setting angle (β2)；
The light source assembly (30) shines towards the reflecting surface (421), and reflects to form reflected light by the reflecting surface (421)；
The optical axis of the reflected light extends towards described image recognition region (50), and sets close to the optical axis of described image recognition element (20)
It sets.
2. image recognition device according to claim 1, which is characterized in that the optical axis and described image of the reflected light are known
It the optical axis interval of reading component (20) and is arranged in parallel.
3. image recognition device according to claim 2, which is characterized in that the optical axis and described image of the reflected light are known
2.8mm ± 0.2 is divided between the optical axis of reading component (20).
4. image recognition device according to claim 1, which is characterized in that the light source assembly includes light-emitting surface (331)；
The reflecting surface (421) and the light-emitting surface (331) form the first setting angle (β1)。
5. image recognition device according to claim 4, which is characterized in that the first setting angle (β1) and/or it is described
Second setting angle (β2) it is 45 degree of angles.
6. image recognition device according to claim 1, which is characterized in that the reflection subassembly (40) includes supporting element
(41) and the reflecting mirror (42) that is mounted on the supporting element (41)；
The reflecting surface (421) is arranged on the reflecting mirror (42).
7. image recognition device according to claim 6, which is characterized in that the supporting element (41) is described including being mounted on
It support portion (411) on bracket (10) and is inclined on the support portion (411) for the reflecting mirror (42) installation
Mounting portion (412)；Third is formed between the mounting portion (412) and the support portion (411) sets angle (β3)。
8. image recognition device according to claim 7, which is characterized in that it includes lens barrel that described image, which distinguishes element (20),
Ontology (21), is mounted in the lens barrel ontology (21) as positioned at institute the induction chip (23) being mounted in lens barrel ontology (21)
State the optical lens (22) in the induction direction of induction chip (23)；
The mounting portion (412) far from the support portion (411) one end connect with the side wall of the lens barrel ontology (21) and with
The lens barrel ontology (21) forms the 4th setting angle (β4)。
9. image recognition device according to claim 8, which is characterized in that the third sets angle (β3) it is 135 degree
Angle；
And/or the 4th setting angle (β4) it is 45 degree of angles.
10. image recognition device according to claim 1, which is characterized in that the bracket (10) include bottom wall (11) with
And side wall (12)；
Described image recognition element (20) is mounted on the bottom wall (11)；
The light source assembly (30) is mounted on the side wall (12)；
The light source assembly (30) includes being mounted on cylinder (31) hollow on the side wall (12), being mounted on the cylinder (31)
In light emitting source (32) and be mounted in the cylinder (31) and be located at and is on the light direction of the light source assembly (32) poly-
Light unit (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683695.0A CN110378162A (en) | 2019-07-26 | 2019-07-26 | A kind of image recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910683695.0A CN110378162A (en) | 2019-07-26 | 2019-07-26 | A kind of image recognition device |
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| Publication Number | Publication Date |
|---|---|
| CN110378162A true CN110378162A (en) | 2019-10-25 |
Family
ID=68256520
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| CN201910683695.0A Pending CN110378162A (en) | 2019-07-26 | 2019-07-26 | A kind of image recognition device |
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| US20100110505A1 (en) * | 2008-10-30 | 2010-05-06 | Pfu Limited | Illuminating device and image reading apparatus |
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